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marsh</title> <meta name="description" content="Search results for: marsh"> <meta name="keywords" content="marsh"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="marsh"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 37</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: marsh</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Role of the Marshes in the Natural Decontamination of Surface Water: A Case of the Redjla Marsh, North-Eastern Algerian</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Benessam">S. Benessam</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20H.%20Debieche"> T. H. Debieche</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Drouiche"> A. Drouiche</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Mahdid"> S. Mahdid</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Zahi"> F. Zahi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The marsh is the impermeable depression. It is not very deep and presents the stagnant water. Their water level varies according to the contributions of water (rain, groundwater, stream etc.), when this last reaches the maximum level of the marsh, it flows towards the downstream through the discharge system. The marsh accumulates all the liquid and solid contributions of upstream part. In the North-East Algerian, the Redjla marsh is located on the course of the Tassift river. Its contributions of water come from the upstream part of the river, often characterized by the presence of several pollutants in water related to the urban effluents, and its discharge system supply the downstream part of the river. In order to determine the effect of the marsh on the water quality of the river this study was conducted. A two-monthly monitoring of the physicochemical parameters and water chemistry of the river were carried out, before and after the marsh, during the period from November 2013 to January 2015. The results show that the marsh plays the role of a natural purifier of water of Tassift river, present by drops of conductivity and concentration of the pollutants (ammonium, phosphate, iron, chlorides and bicarbonates) between the upstream part and downstream of the marsh. That indicates that these pollutants are transformed with other chemical forms (case of ammonium towards nitrate), precipitated in complex forms or/and adsorbed by the sediments of the marsh. This storage of the pollutants in the ground of the marsh will be later on a source of pollution for the plants and river water. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=marsh" title="marsh">marsh</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20purification" title=" natural purification"> natural purification</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20pollution" title=" urban pollution"> urban pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen" title=" nitrogen"> nitrogen</a> </p> <a href="https://publications.waset.org/abstracts/48329/role-of-the-marshes-in-the-natural-decontamination-of-surface-water-a-case-of-the-redjla-marsh-north-eastern-algerian" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48329.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">263</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Algal Mat Shift to Marsh Domain in Sandy and Muddy Tidal Flat: Examples the Gulf of Gabes, SE Tunisia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maher%20Gzam">Maher Gzam</a>, <a href="https://publications.waset.org/abstracts/search?q=Noureddine%20Elmejdoub"> Noureddine Elmejdoub</a>, <a href="https://publications.waset.org/abstracts/search?q=Younes%20Jedoui"> Younes Jedoui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Physical parameters involved in the depositional process on stromatolites, which grow in salt marsh domain, are elucidated in this study. Stromatolites start to grow where surface altimetry of the intertidal flat is high enough to reduce water cover (above mean high tide) and to guarantee a lamellar stream flow. Stromatolite aggrades as a thick laminated layer (stromatolite package) allowing pioneer vascular plants (Salicornia Arabica) to colonize this elevated area (6 cm a.m.s.l). In turn halophytic plant, regularly flooded on spring tide, reduce hydrodynamics velocities causing deposition of sediment, as a result, intertidal zone shift on the flat surface with an expanded marsh domain. This positive feedback invokes self organization between stromatolite growth, vegetation proliferation and deposition of sediment and may be applicable to ancient progradational sequence. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stromatolites" title="stromatolites">stromatolites</a>, <a href="https://publications.waset.org/abstracts/search?q=marsh" title=" marsh"> marsh</a>, <a href="https://publications.waset.org/abstracts/search?q=deposition%20of%20sediment" title=" deposition of sediment"> deposition of sediment</a>, <a href="https://publications.waset.org/abstracts/search?q=aggradation" title=" aggradation"> aggradation</a>, <a href="https://publications.waset.org/abstracts/search?q=progradation" title=" progradation"> progradation</a>, <a href="https://publications.waset.org/abstracts/search?q=gulf%20of%20Gabes" title=" gulf of Gabes"> gulf of Gabes</a>, <a href="https://publications.waset.org/abstracts/search?q=Tunisia" title=" Tunisia"> Tunisia</a> </p> <a href="https://publications.waset.org/abstracts/37199/algal-mat-shift-to-marsh-domain-in-sandy-and-muddy-tidal-flat-examples-the-gulf-of-gabes-se-tunisia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37199.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">335</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Quantifying Wave Attenuation over an Eroding Marsh through Numerical Modeling </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Donald%20G.%20Danmeier">Donald G. Danmeier</a>, <a href="https://publications.waset.org/abstracts/search?q=Gian%20Marco%20Pizzo"> Gian Marco Pizzo</a>, <a href="https://publications.waset.org/abstracts/search?q=Matthew%20Brennan"> Matthew Brennan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although wetlands have been proposed as a green alternative to manage coastal flood hazards because of their capacity to adapt to sea level rise and provision of multiple ecological and social co-benefits, they are often overlooked due to challenges in quantifying the uncertainty and naturally, variability of these systems. This objective of this study was to quantify wave attenuation provided by a natural marsh surrounding a large oil refinery along the US Gulf Coast that has experienced steady erosion along the shoreward edge. The vegetation module of the SWAN was activated and coupled with a hydrodynamic model (DELFT3D) to capture two-way interactions between the changing water level and wavefield over the course of a storm event. Since the marsh response to relative sea level rise is difficult to predict, a range of future marsh morphologies is explored. Numerical results were examined to determine the amount of wave attenuation as a function of marsh extent and the relative contributions from white-capping, depth-limited wave breaking, bottom friction, and flexing of vegetation. In addition to the coupled DELFT3D-SWAN modeling of a storm event, an uncoupled SWAN-VEG model was applied to a simplified bathymetry to explore a larger experimental design space. The wave modeling revealed that the rate of wave attenuation reduces for higher surge but was still significant over a wide range of water levels and outboard wave heights. The results also provide insights to the minimum marsh extent required to fully realize the potential wave attenuation so the changing coastal hazards can be managed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=green%20infrastructure" title="green infrastructure">green infrastructure</a>, <a href="https://publications.waset.org/abstracts/search?q=wave%20attenuation" title=" wave attenuation"> wave attenuation</a>, <a href="https://publications.waset.org/abstracts/search?q=wave%20modeling" title=" wave modeling"> wave modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=wetland" title=" wetland"> wetland</a> </p> <a href="https://publications.waset.org/abstracts/126418/quantifying-wave-attenuation-over-an-eroding-marsh-through-numerical-modeling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126418.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">132</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> Sea Level Rise and Sediment Supply Explain Large-Scale Patterns of Saltmarsh Expansion and Erosion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cai%20J.%20T.%20Ladd">Cai J. T. Ladd</a>, <a href="https://publications.waset.org/abstracts/search?q=Mollie%20F.%20Duggan-Edwards"> Mollie F. Duggan-Edwards</a>, <a href="https://publications.waset.org/abstracts/search?q=Tjeerd%20J.%20Bouma"> Tjeerd J. Bouma</a>, <a href="https://publications.waset.org/abstracts/search?q=Jordi%20F.%20Pages"> Jordi F. Pages</a>, <a href="https://publications.waset.org/abstracts/search?q=Martin%20W.%20Skov"> Martin W. Skov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Salt marshes are valued for their role in coastal flood protection, carbon storage, and for supporting biodiverse ecosystems. As a biogeomorphic landscape, marshes evolve through the complex interactions between sea level rise, sediment supply and wave/current forcing, as well as and socio-economic factors. Climate change and direct human modification could lead to a global decline marsh extent if left unchecked. Whilst the processes of saltmarsh erosion and expansion are well understood, empirical evidence on the key drivers of long-term lateral marsh dynamics is lacking. In a GIS, saltmarsh areal extent in 25 estuaries across Great Britain was calculated from historical maps and aerial photographs, at intervals of approximately 30 years between 1846 and 2016. Data on the key perceived drivers of lateral marsh change (namely sea level rise rates, suspended sediment concentration, bedload sediment flux rates, and frequency of both river flood and storm events) were collated from national monitoring centres. Continuous datasets did not extend beyond 1970, therefore predictor variables that best explained rate change of marsh extent between 1970 and 2016 was calculated using a Partial Least Squares Regression model. Information about the spread of Spartina anglica (an invasive marsh plant responsible for marsh expansion around the globe) and coastal engineering works that may have impacted on marsh extent, were also recorded from historical documents and their impacts assessed on long-term, large-scale marsh extent change. Results showed that salt marshes in the northern regions of Great Britain expanded an average of 2.0 ha/yr, whilst marshes in the south eroded an average of -5.3 ha/yr. Spartina invasion and coastal engineering works could not explain these trends since a trend of either expansion or erosion preceded these events. Results from the Partial Least Squares Regression model indicated that the rate of relative sea level rise (RSLR) and availability of suspended sediment concentration (SSC) best explained the patterns of marsh change. RSLR increased from 1.6 to 2.8 mm/yr, as SSC decreased from 404.2 to 78.56 mg/l along the north-to-south gradient of Great Britain, resulting in the shift from marsh expansion to erosion. Regional differences in RSLR and SSC are due to isostatic rebound since deglaciation, and tidal amplitudes respectively. Marshes exposed to low RSLR and high SSC likely leads to sediment accumulation at the coast suitable for colonisation by marsh plants and thus lateral expansion. In contrast, high RSLR with are likely not offset deposition under low SSC, thus average water depth at the marsh edge increases, allowing larger wind-waves to trigger marsh erosion. Current global declines in sediment flux to the coast are likely to diminish the resilience of salt marshes to RSLR. Monitoring and managing suspended sediment supply is not common-place, but may be critical to mitigating coastal impacts from climate change. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lateral%20saltmarsh%20dynamics" title="lateral saltmarsh dynamics">lateral saltmarsh dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=sea%20level%20rise" title=" sea level rise"> sea level rise</a>, <a href="https://publications.waset.org/abstracts/search?q=sediment%20supply" title=" sediment supply"> sediment supply</a>, <a href="https://publications.waset.org/abstracts/search?q=wave%20forcing" title=" wave forcing"> wave forcing</a> </p> <a href="https://publications.waset.org/abstracts/107263/sea-level-rise-and-sediment-supply-explain-large-scale-patterns-of-saltmarsh-expansion-and-erosion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107263.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">134</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Contribution to the Study of Reproduction of Water Birds (Case of Marsh Bouessdra, North East Algeria)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wahiba%20Boudraa">Wahiba Boudraa</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalil%20Draidi"> Khalil Draidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Badis%20Bakhouch"> Badis Bakhouch</a>, <a href="https://publications.waset.org/abstracts/search?q=Farah%20Chettibi"> Farah Chettibi</a>, <a href="https://publications.waset.org/abstracts/search?q=Meriem%20Aberkane"> Meriem Aberkane</a>, <a href="https://publications.waset.org/abstracts/search?q=Zihad%20Bouslama"> Zihad Bouslama</a>, <a href="https://publications.waset.org/abstracts/search?q=Moussa%20Houhamdi"> Moussa Houhamdi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Gulf of Annaba, located at the extreme north eastern Algerian; our site of study is a marsh administratively it is part of the wilaya of Annaba, municipality of El-Bouni; extends on a surface from 55 hectare, the maximum depth is of less 2m. A scheme of work was adopted for an evaluation and characterization of the reproduction of the water nicheurs birds in the marsh of Boussedra. Some important parameters described by the scientific literature; According to standardized methods, variables were the object of a regular follow-up during the period of reproduction. These parameters were taken into account: the installation date of the nests, the vegetable support; blossoming of eggs, causes of the failure of the blossomings (predation or abandonment), characteristics of the nests (composition, internal diameter, external diameter, depth and heightening), measurements of the distances nest-nest nearest, Depth of water, the measurement of eggs, size of laying, size of laying. The follow-up in the marsh was carried out between March 2013 until the month of July 2014 at a rate of two outputs per weeks, one located and noted the nests to control them each week. The study on the reproduction of the water birds enables us to note that this site plays a very important part in the wintering and the reproduction of certain species important. This study opens broad prospects for study of several phenomena related to the ecology of the water birds, and the conservation of the wetlands. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Algeria" title="Algeria">Algeria</a>, <a href="https://publications.waset.org/abstracts/search?q=Boussedra" title=" Boussedra"> Boussedra</a>, <a href="https://publications.waset.org/abstracts/search?q=nests" title=" nests"> nests</a>, <a href="https://publications.waset.org/abstracts/search?q=reproduction" title=" reproduction"> reproduction</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20birds" title=" water birds"> water birds</a> </p> <a href="https://publications.waset.org/abstracts/38053/contribution-to-the-study-of-reproduction-of-water-birds-case-of-marsh-bouessdra-north-east-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38053.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">257</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Response of Caldeira De Tróia Saltmarsh to Sea Level Rise, Sado Estuary, Portugal</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20G.%20Cunha">A. G. Cunha</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20In%C3%A1cio"> M. Inácio</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20C.%20Freitas"> M. C. Freitas</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Antunes"> C. Antunes</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Silva"> T. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Andrade"> C. Andrade</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20Lopes"> V. Lopes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Saltmarshes are essential ecosystems both from an ecological and biological point of view. Furthermore, they constitute an important social niche, providing valuable economic and protection functions. Thus, understanding their rates and patterns of sedimentation is critical for functional management and rehabilitation, especially in an SLR scenario. The Sado estuary is located 40 km south of Lisbon. It is a bar built estuary, separated from the sea by a large sand spit: the Tróia barrier. Caldeira de Tróia is located on the free edge of this barrier, and encompasses a salt marsh with ca. 21,000 m². Sediment cores were collected in the high and low marshes and in the mudflat area of the North bank of Caldeira de Tróia. From the low marsh core, fifteen samples were chosen for ²¹⁰Pb and ¹³⁷Cs determination at University of Geneva. The cores from the high marsh and the mudflat are still being analyzed. A sedimentation rate of 2.96 mm/year was derived from ²¹⁰Pb using the Constant Flux Constant Sedimentation model. The ¹³⁷Cs profile shows a peak in activity (1963) between 15.50 and 18.50 cm, giving a 3.1 mm/year sedimentation rate for the past 53 years. The adopted sea level rise scenario was based on a model built with the initial rate of SLR of 2.1 mm/year in 2000 and an acceleration of 0.08 mm/year². Based on the harmonic analysis of Setubal-Tróia tide gauge of 2005 data, the tide model was estimated and used to build the tidal tables to the period 2000-2016. With these tables, the average mean water levels were determined for the same time span. A digital terrain model was created from LIDAR scanning with 2m horizontal resolution (APA-DGT, 2011) and validated with altimetric data obtained with a DGPS-RTK. The response model calculates a new elevation for each pixel of the DTM for 2050 and 2100 based on the sedimentation rates specific of each environment. At this stage, theoretical values were chosen for the high marsh and the mudflat (respectively, equal and double the low marsh rate – 2.92 mm/year). These values will be rectified once sedimentation rates are determined for the other environments. For both projections, the total surface of the marsh decreases: 2% in 2050 and 61% in 2100. Additionally, the high marsh coverage diminishes significantly, indicating a regression in terms of maturity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=%C2%B9%C2%B3%E2%81%B7Cs" title="¹³⁷Cs">¹³⁷Cs</a>, <a href="https://publications.waset.org/abstracts/search?q=%C2%B2%C2%B9%E2%81%B0Pb" title=" ²¹⁰Pb"> ²¹⁰Pb</a>, <a href="https://publications.waset.org/abstracts/search?q=saltmarsh" title=" saltmarsh"> saltmarsh</a>, <a href="https://publications.waset.org/abstracts/search?q=sea%20level%20rise" title=" sea level rise"> sea level rise</a>, <a href="https://publications.waset.org/abstracts/search?q=response%20model" title=" response model"> response model</a> </p> <a href="https://publications.waset.org/abstracts/69145/response-of-caldeira-de-troia-saltmarsh-to-sea-level-rise-sado-estuary-portugal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69145.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">250</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> Experimental Characterization of Flowable Cement Pastes Made with Marble Waste</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20Messaoudi">F. Messaoudi</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Haddad"> O. Haddad</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Bouras"> R. Bouras</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Kaci">S. Kaci</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The development of self-compacting concrete (SCC) marks a huge step towards improved efficiency and working conditions on construction sites and in the precast industry. SCC flows easily into more complex shapes and through reinforcement bars, reduces the manpower required for the placement; no vibration is required to ensure correct compaction of concrete. This concrete contains a high volume of binder which is controlled by their rheological behavior. The paste consists of binders (Portland cement with or without supplementary cementitious materials), water, chemical admixtures and fillers. In this study, two series of tests were performed on self-compacting cement pastes made with marble waste additions as the mineral addition. The first series of this investigation was to determine the flow time of paste using Marsh cone, the second series was to determine the rheological parameters of the same paste namely yield stress and plastic viscosity using the rheometer Haake RheoStress 1. The results of this investigation allowed us to study the evolution of the yield stress, viscosity and the flow time Marsh cone paste as a function of the composition of the paste. A correlation between the results obtained on the flow test Marsh cone and those of the plastic viscosity on the mottled different cement pastes is proposed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adjuvant" title="adjuvant">adjuvant</a>, <a href="https://publications.waset.org/abstracts/search?q=rheological%20parameter" title=" rheological parameter"> rheological parameter</a>, <a href="https://publications.waset.org/abstracts/search?q=self-compacting%20cement%20pastes" title=" self-compacting cement pastes"> self-compacting cement pastes</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20marble" title=" waste marble"> waste marble</a> </p> <a href="https://publications.waset.org/abstracts/33165/experimental-characterization-of-flowable-cement-pastes-made-with-marble-waste" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33165.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">275</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> Potential Ecological Risk Assessment of Selected Heavy Metals in Sediments of Tidal Flat Marsh, the Case Study: Shuangtai Estuary, China</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chang-Fa%20Liu">Chang-Fa Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yi-Ting%20Wang"> Yi-Ting Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuan%20Liu"> Yuan Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Hai-Feng%20Wei"> Hai-Feng Wei</a>, <a href="https://publications.waset.org/abstracts/search?q=Lei%20Fang"> Lei Fang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jin%20Li"> Jin Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Heavy metals in sediments can cause adverse ecological effects while it exceeds a given criteria. The present study investigated sediment environmental quality, pollutant enrichment, ecological risk, and source identification for copper, cadmium, lead, zinc, mercury, and arsenic in the sediments collected from tidal flat marsh of Shuangtai estuary, China. The arithmetic mean integrated pollution index, geometric mean integrated pollution index, fuzzy integrated pollution index, and principal component score were used to characterize sediment environmental quality; fuzzy similarity and geo-accumulation Index were used to evaluate pollutant enrichment; correlation matrix, principal component analysis, and cluster analysis were used to identify source of pollution; environmental risk index and potential ecological risk index were used to assess ecological risk. The environmental qualities of sediment are classified to very low degree of contamination or low contamination. The similar order to element background of soil in the Liaohe plain is region of Sanjiaozhou, Honghaitan, Sandaogou, Xiaohe by pollutant enrichment analysis. The source identification indicates that correlations are significantly among metals except between copper and cadmium. Cadmium, lead, zinc, mercury, and arsenic will be clustered in the same clustering as the first principal component. Copper will be clustered as second principal component. The environmental risk assessment level will be scaled to no risk in the studied area. The order of potential ecological risk is As > Cd > Hg > Cu > Pb > Zn. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ecological%20risk%20assessment" title="ecological risk assessment">ecological risk assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals" title=" heavy metals"> heavy metals</a>, <a href="https://publications.waset.org/abstracts/search?q=sediment" title=" sediment"> sediment</a>, <a href="https://publications.waset.org/abstracts/search?q=marsh" title=" marsh"> marsh</a>, <a href="https://publications.waset.org/abstracts/search?q=Shuangtai%20estuary" title=" Shuangtai estuary"> Shuangtai estuary</a> </p> <a href="https://publications.waset.org/abstracts/48963/potential-ecological-risk-assessment-of-selected-heavy-metals-in-sediments-of-tidal-flat-marsh-the-case-study-shuangtai-estuary-china" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48963.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">347</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Microbial Diversity of El-Baida Marsh: Setif, Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Necef">H. Necef</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Benayad"> A. Benayad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fungi are becoming more and more important in our life. Therefore, as a start for the symposium on filamentous fungi in biotechnology a short survey of the role of fungi in biotechnology. Salin soils occupy about 7% of land area; they are characterized by unsuitable physical conditions for the growth of living organisms. However, researches showed that some microorganisms especially fungi are able to grow and adapt to such extreme conditions; it is due to their ability to develop different physiological mechanisms in their adaptation. This is the first study on the physiological and biological characteristics of El-Beida marsh. Nine soil samples were taken at different points in two steps, the first was in winter (low temperature), and the second was in summer (high temperature). The physicochemical analyses of the soil were conducted, then the isolation process was applied using two methods, direct method and dilution method (10-1, 10-2, 10-3, 10-4). Different species of fungi were identified belong to 21 genera in addition to 3 yeast species, Aspergillus showed the highest proportion by 43%, then Penicillium by 20% then Alternaria by 7%, in addition to various genera in different proportions. As for the sampling periods, it was observed that the spread of fungi in winter was higher than in summer with the proportion 75.47% and 24.53% respectively. Some halotolerant fungi have a biotechnological importance especially if the salinity of the medium is necessary for the fermentation, and if the halotolerance genes of the fungus will define, this will open the research to study and improve this property for the industrial important micro-organisms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=salinity" title="salinity">salinity</a>, <a href="https://publications.waset.org/abstracts/search?q=identification" title=" identification"> identification</a>, <a href="https://publications.waset.org/abstracts/search?q=aspergillus%20oryzae" title=" aspergillus oryzae"> aspergillus oryzae</a>, <a href="https://publications.waset.org/abstracts/search?q=halotolerance" title=" halotolerance"> halotolerance</a>, <a href="https://publications.waset.org/abstracts/search?q=fungi" title=" fungi"> fungi</a> </p> <a href="https://publications.waset.org/abstracts/12731/microbial-diversity-of-el-baida-marsh-setif-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12731.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">399</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> Examining Microbial Decomposition, Carbon Cycling and Storage in Cefni Coastal Salt Marsh, Anglesey Island, Wales, United Kingdom</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dasat%20G.%20S.">Dasat G. S.</a>, <a href="https://publications.waset.org/abstracts/search?q=Christopher%20F.%20Tim"> Christopher F. Tim</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Dun%20C."> J. Dun C.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Salt marshes are known to sequester carbon dioxide from the atmosphere into the soil, but natural and anthropogenic activities could trigger the release of large quantities of centuries of buried carbon dioxide, methane and nitrous oxide (CO2, CH4 and N2O) which are the major greenhouse gases (GHGs) implicated with climate change. Therefore, this study investigated the biogeochemical activities by collecting soil samples from low, mid and high zones of the Cefni salt marsh, within the Maltreat estuary, on the island of Anglesey, north Wales, United Kingdom for a consortium of laboratory based experiments using standard operating protocols (POS) to quantify the soil organic matter contents and the rate of microbial decomposition and carbon storage at the Carbon Capture Laboratory of Bangor University Wales. Results of investigations reveals that the mid zone had 56.23% and 9.98% of soil water and soil organic matter (SOM) contents respectively higher than the low and high zones. Phenol oxidase activity (1193.53µmol dicq g-1 h-1) was highest at the low zone in comparison to the high and mid zones (867.60 and 608.74 µmol dicq g-1 h-1) respectively. Soil phenolic concentration was found to be highest in the mid zone (53.25 µg-1 g-1) when compared with those from the high (15.66 µg-1 g-1) and low (4.18 µg-1 g-1) zones respectively. Activities of hydrolase enzymes showed similar trend for the high and low zones and much lower activities in the mid zone. CO2 flux from the mid zone (6.79 ug g-1 h-1) was significantly greater than those from high (-2.29 ug g-1 h-1) and low (1.30 µg g-1 h-1) zones. Since salt marshes provide essential ecosystem services, their degradation or alteration in whatever form could compromise such ecosystem services and could convert them from net sinks into net sources with consequential effects to the global environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=saltmarsh" title="saltmarsh">saltmarsh</a>, <a href="https://publications.waset.org/abstracts/search?q=decomposition" title=" decomposition"> decomposition</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20cycling" title=" carbon cycling"> carbon cycling</a>, <a href="https://publications.waset.org/abstracts/search?q=enzymes" title=" enzymes"> enzymes</a> </p> <a href="https://publications.waset.org/abstracts/161319/examining-microbial-decomposition-carbon-cycling-and-storage-in-cefni-coastal-salt-marsh-anglesey-island-wales-united-kingdom" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161319.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">82</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> First Breeding Populations of The Glossy Ibis (Plegadis falcinellus) in a Peri-Urban Wetland Areas (Marsh of Boussedra; North-East of Algeria)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Boudraa%20Wahiba">Boudraa Wahiba</a>, <a href="https://publications.waset.org/abstracts/search?q=Chettibi%20Farah"> Chettibi Farah</a>, <a href="https://publications.waset.org/abstracts/search?q=Lahlah%20Naouel"> Lahlah Naouel</a>, <a href="https://publications.waset.org/abstracts/search?q=Bouslama%20Zihad"> Bouslama Zihad</a>, <a href="https://publications.waset.org/abstracts/search?q=Houhamdi%20Moussa"> Houhamdi Moussa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The marsh of Boussedra (55 ha) is a peri-urban wetland, located in the city of El - Bouni, wilaya of Annaba (North-east of the Algeria). This city hosts every year, 53 species of waterfowl, belonging to 15 different families, of which the most represented family is the Anatidae with almost 12 species. The Glossy ibis (Plegadis falcinellus) is the only representative of the family of the threskiornithidae. After a total absence for almost a decade, this species has established in North Africa and started breeding since 2000. The Glossy ibis (plegadis falcinellus), breeds with low numbers in distant areas. At the wetland of Boussedra, the population of this species was observed with numbers approaching 160 individuals. During the breeding season of 2014 (between march and july), this species bred in mixed heronries (Cattle egret Bubulcus ibis , Little egret Egretta garzetta, The black-crowned night heron Nycticorax nycticorax , Squacco heron Ardeola ralloides and Little bittern Ixobrychus minutus), where a total of 120 nests were counted. This represents the largest colony observed in North Africa. The reproduction of the studied species took place on a Tamaricaceae (Tamarix gallica), where more than 2000 nest were constructed. During this breeding season, we have monitored the colony's installation and evolution and tried to characterize the reproduction, at the urban water plan of Boussedra (measurements of nests, measurements of eggs and monitoring the growing rate and weight gaining of the chicks, since their birth until their flight). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=glossy%20ibis" title="glossy ibis">glossy ibis</a>, <a href="https://publications.waset.org/abstracts/search?q=reproduction" title=" reproduction"> reproduction</a>, <a href="https://publications.waset.org/abstracts/search?q=peri-urban%20wetland" title=" peri-urban wetland"> peri-urban wetland</a>, <a href="https://publications.waset.org/abstracts/search?q=mixed%20heronry" title=" mixed heronry"> mixed heronry</a>, <a href="https://publications.waset.org/abstracts/search?q=Boussedra" title=" Boussedra"> Boussedra</a>, <a href="https://publications.waset.org/abstracts/search?q=Algeria" title=" Algeria "> Algeria </a> </p> <a href="https://publications.waset.org/abstracts/32423/first-breeding-populations-of-the-glossy-ibis-plegadis-falcinellus-in-a-peri-urban-wetland-areas-marsh-of-boussedra-north-east-of-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32423.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">330</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Ecosystem Approach in Aquaculture: From Experimental Recirculating Multi-Trophic Aquaculture to Operational System in Marsh Ponds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Simide">R. Simide</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Miard"> T. Miard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Integrated multi-trophic aquaculture (IMTA) is used to reduce waste from aquaculture and increase productivity by co-cultured species. In this study, we designed a recirculating multi-trophic aquaculture system which requires low energy consumption, low water renewal and easy-care. European seabass (Dicentrarchus labrax) were raised with co-cultured sea urchin (Paracentrotus lividus), deteritivorous polychaete fed on settled particulate matter, mussels (Mytilus galloprovincialis) used to extract suspended matters, macroalgae (Ulva sp.) used to uptake dissolved nutrients and gastropod (Phorcus turbinatus) used to clean the series of 4 tanks from fouling. Experiment was performed in triplicate during one month in autumn under an experimental greenhouse at the Institute Océanographique Paul Ricard (IOPR). Thanks to the absence of a physical filter, any pomp was needed to pressure water and the water flow was carried out by a single air-lift followed by gravity flow.Total suspended solids (TSS), biochemical oxygen demand (BOD5), turbidity, phytoplankton estimation and dissolved nutrients (ammonium NH₄, nitrite NO₂⁻, nitrate NO₃⁻ and phosphorus PO₄³⁻) were measured weekly while dissolved oxygen and pH were continuously recorded. Dissolved nutrients stay under the detectable threshold during the experiment. BOD5 decreased between fish and macroalgae tanks. TSS highly increased after 2 weeks and then decreased at the end of the experiment. Those results show that bioremediation can be well used for aquaculture system to keep optimum growing conditions. Fish were the only feeding species by an external product (commercial fish pellet) in the system. The others species (extractive species) were fed from waste streams from the tank above or from Ulva produced by the system for the sea urchin. In this way, between the fish aquaculture only and the addition of the extractive species, the biomass productivity increase by 5.7. In other words, the food conversion ratio dropped from 1.08 with fish only to 0.189 including all species. This experimental recirculating multi-trophic aquaculture system was efficient enough to reduce waste and increase productivity. In a second time, this technology has been reproduced at a commercial scale. The IOPR in collaboration with Les 4 Marais company run for 6 month a recirculating IMTA in 8000 m² of water allocate between 4 marsh ponds. A similar air-lift and gravity recirculating system was design and only one feeding species of shrimp (Palaemon sp.) was growth for 3 extractive species. Thanks to this joint work at the laboratory and commercial scales we will be able to challenge IMTA system and discuss about this sustainable aquaculture technology. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioremediation" title="bioremediation">bioremediation</a>, <a href="https://publications.waset.org/abstracts/search?q=integrated%20multi-trophic%20aquaculture%20%28IMTA%29" title=" integrated multi-trophic aquaculture (IMTA)"> integrated multi-trophic aquaculture (IMTA)</a>, <a href="https://publications.waset.org/abstracts/search?q=laboratory%20and%20commercial%20scales" title=" laboratory and commercial scales"> laboratory and commercial scales</a>, <a href="https://publications.waset.org/abstracts/search?q=recirculating%20aquaculture" title=" recirculating aquaculture"> recirculating aquaculture</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable" title=" sustainable"> sustainable</a> </p> <a href="https://publications.waset.org/abstracts/90753/ecosystem-approach-in-aquaculture-from-experimental-recirculating-multi-trophic-aquaculture-to-operational-system-in-marsh-ponds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90753.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">152</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> Determination of the Optimal Content of Commercial Superplasticizer Additives in Cements with Calcined Clay</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amanda%20R.%20Teixeira">Amanda R. Teixeira</a>, <a href="https://publications.waset.org/abstracts/search?q=Jo%C3%A3o%20H.%20S.%20Rego"> João H. S. Rego</a>, <a href="https://publications.waset.org/abstracts/search?q=Gabriel%20F.%20S.%20Brito"> Gabriel F. S. Brito</a>, <a href="https://publications.waset.org/abstracts/search?q=Fabricio%20M.%20Silva"> Fabricio M. Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of superplasticizer additives has provided several advances for the civil construction industry, enabling gains in the rheological behavior and mechanical properties of cementitious matrices. These compounds act at the solid-liquid interface of colloidal suspensions of cement pastes, preventing agglomeration of the particles. Although the use in the concrete industry is wide, the mechanisms of dispersion of concrete admixtures composed of polycarboxylate in cement with supplementary cementitious materials have ample opportunity to be investigated, providing the attainment of increasingly compatible and efficient cement-addition-additive systems. The cements used in the research are Portland Cement CPV and two cements Portland Cement Composite (CPIV) with calcined clay contents of 20% and 28% and three commercial additives based on polycarboxylate. The performance of the additives and obtaining the optimal content was determined by the Marsh Cone test and spread by Mini-Slump. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calcined%20clay" title="calcined clay">calcined clay</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20cements" title=" composite cements"> composite cements</a>, <a href="https://publications.waset.org/abstracts/search?q=superplasticizer%20additives" title=" superplasticizer additives"> superplasticizer additives</a>, <a href="https://publications.waset.org/abstracts/search?q=polycarboxylate" title=" polycarboxylate"> polycarboxylate</a> </p> <a href="https://publications.waset.org/abstracts/159324/determination-of-the-optimal-content-of-commercial-superplasticizer-additives-in-cements-with-calcined-clay" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159324.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">106</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Field Application of Reduced Crude Conversion Spent Lime</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brian%20H.%20Marsh">Brian H. Marsh</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20H.%20Grove"> John H. Grove</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Gypsum is being applied to ameliorate subsoil acidity and to overcome the problem of very slow lime movement from surface lime applications. Reduced Crude Conversion Spent Lime (RCCSL) containing anhydrite was evaluated for use as a liming material with specific consideration given to the movement of sulfate into the acid subsoil. Agricultural lime and RCCSL were applied at 0, 0.5, 1.0, and 1.5 times the lime requirement of 6.72 Mg ha-1 to an acid Trappist silt loam (Typic Hapuldult). Corn [Zea mays (L.)]was grown following lime material application and soybean [Glycine max (L.) Merr.]was grown in the second year. Soil pH increased rapidly with the addition of the RCCSL material. Over time there was no difference in soil pH between the materials but there was with increasing rate. None of the observed changes in plant nutrient concentration had an impact on yield. Grain yield was higher for the RCCSL amended treatments in the first year but not in the second. There was a significant increase in soybean grain yield from the full lime requirement treatments over no lime. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=soil%20acidity" title="soil acidity">soil acidity</a>, <a href="https://publications.waset.org/abstracts/search?q=corn" title=" corn"> corn</a>, <a href="https://publications.waset.org/abstracts/search?q=soybean" title=" soybean"> soybean</a>, <a href="https://publications.waset.org/abstracts/search?q=liming%20materials" title=" liming materials"> liming materials</a> </p> <a href="https://publications.waset.org/abstracts/3923/field-application-of-reduced-crude-conversion-spent-lime" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3923.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">358</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> An Investigation of Current Potato Nitrogen Fertility Programs' Contribution to Ground Water Contamination</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brian%20H.%20Marsh">Brian H. Marsh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitrogen fertility is an important component for optimum potato yield and quality. Best management practices are necessary in regards to N applications to achieve these goals without applying excess N with may contribute to ground water contamination. Eight potato fields in the Southern San Joaquin Valley were sampled for nitrogen inputs and uptake, tuber and vine dry matter and residual soil nitrate-N. The fields had substantial soil nitrate-N prior to the potato crop. Nitrogen fertilizer was applied prior to planting and in irrigation water as needed based on in-season petiole sampling in accordance with published recommendations. Average total nitrogen uptake was 237 kg ha<sup>-1</sup> on 63.5 Mg ha<sup>-1</sup> tuber yield and nitrogen use efficiency was very good at 81 percent. Sixty-nine percent of the plant nitrogen was removed in tubers. Soil nitrate-N increased 14 percent from pre-plant to post-harvest averaged across all fields and was generally situated in the upper soil profile. Irrigation timing and amount applied did not move water into the lower profile except for a single location where nitrate also moved into the lower soil profile. Pre-plant soil analysis is important information to be used. Rotation crops having deeper rooting growth would be able to utilize nitrogen that remained in the soil profile. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=potato" title="potato">potato</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20fertilization" title=" nitrogen fertilization"> nitrogen fertilization</a>, <a href="https://publications.waset.org/abstracts/search?q=irrigation%20management" title=" irrigation management"> irrigation management</a>, <a href="https://publications.waset.org/abstracts/search?q=leaching%20potential" title=" leaching potential"> leaching potential</a> </p> <a href="https://publications.waset.org/abstracts/33159/an-investigation-of-current-potato-nitrogen-fertility-programs-contribution-to-ground-water-contamination" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33159.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">459</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Object-Based Flow Physics for Aerodynamic Modelling in Real-Time Environments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=William%20J.%20Crowther">William J. Crowther</a>, <a href="https://publications.waset.org/abstracts/search?q=Conor%20Marsh"> Conor Marsh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Object-based flow simulation allows fast computation of arbitrarily complex aerodynamic models made up of simple objects with limited flow interactions. The proposed approach is universally applicable to objects made from arbitrarily scaled ellipsoid primitives at arbitrary aerodynamic attitude and angular rate. The use of a component-based aerodynamic modelling approach increases efficiency by allowing selective inclusion of different physics models at run-time and allows extensibility through the development of new models. Insight into the numerical stability of the model under first order fixed-time step integration schemes is provided by stability analysis of the drag component. The compute cost of model components and functions is evaluated and compared against numerical benchmarks. Model static outputs are verified against theoretical expectations and dynamic behaviour using falling plate data from the literature. The model is applied to a range of case studies to demonstrate the efficacy of its application in extensibility, ease of use, and low computational cost. Dynamically complex multi-body systems can be implemented in a transparent and efficient manner, and we successfully demonstrate large scenes with hundreds of objects interacting with diverse flow fields. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aerodynamics" title="aerodynamics">aerodynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=real-time%20simulation" title=" real-time simulation"> real-time simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=low-order%20model" title=" low-order model"> low-order model</a>, <a href="https://publications.waset.org/abstracts/search?q=flight%20dynamics" title=" flight dynamics"> flight dynamics</a> </p> <a href="https://publications.waset.org/abstracts/166519/object-based-flow-physics-for-aerodynamic-modelling-in-real-time-environments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166519.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">102</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Competition in Petroleum Extraction and the Challenges of Climate Change</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saeid%20Rabiei%20Majd">Saeid Rabiei Majd</a>, <a href="https://publications.waset.org/abstracts/search?q=Motahareh%20Alvandi"> Motahareh Alvandi</a>, <a href="https://publications.waset.org/abstracts/search?q=Bahareh%20Asefi"> Bahareh Asefi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Extraction of maximum natural resources is one of the common policies of governments, especially petroleum resources that have high economic and strategic value. The incentive to access and maintain profitable oil markets for governments or international oil companies, causing neglects them to pay attention to environmental principles and sustainable development, which in turn drives up environmental and climate change. Significant damage to the environment can cause severe damage to citizens and indigenous people, such as the compulsory evacuation of their zone due to contamination of water and air resources, destruction of animals and plants. Hawizeh Marshes is a common aquatic and environmental ecosystem along the Iran-Iraq border that also has oil resources. This marsh has been very rich in animal, vegetative, and oil resources. Since 1990, the political motives, the strategic importance of oil extraction, and the disregard for the environmental rights of the Iraqi and Iranian governments in the region have caused 90% of the marshes and forced migration of indigenous people. In this paper, we examine the environmental degradation factors resulting from the adoption of policies and practices of governments in this region based on the principles of environmental rights and sustainable development. Revision of the implementation of the government’s policies and natural resource utilization systems can prevent the spread of climate change, which is a serious international challenge today. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=climate%20change" title="climate change">climate change</a>, <a href="https://publications.waset.org/abstracts/search?q=indigenous%20rights" title=" indigenous rights"> indigenous rights</a>, <a href="https://publications.waset.org/abstracts/search?q=petroleum%20operation" title=" petroleum operation"> petroleum operation</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development%20principles" title=" sustainable development principles"> sustainable development principles</a>, <a href="https://publications.waset.org/abstracts/search?q=sovereignty%20on%20resources" title=" sovereignty on resources"> sovereignty on resources</a> </p> <a href="https://publications.waset.org/abstracts/112085/competition-in-petroleum-extraction-and-the-challenges-of-climate-change" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/112085.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">111</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Assessment of Population Trends of Birds at Taunsa Barrage Wildlife Sanctuary, Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fehmeada%20Bibi">Fehmeada Bibi</a>, <a href="https://publications.waset.org/abstracts/search?q=Shafqat%20Nawaz%20Qaisrani"> Shafqat Nawaz Qaisrani</a>, <a href="https://publications.waset.org/abstracts/search?q=Masood%20Akhtar"> Masood Akhtar</a>, <a href="https://publications.waset.org/abstracts/search?q=Zulfiqar%20Ali"> Zulfiqar Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Population trends learning is an important tool for conservation programs in rare as well as in common species of birds. A study was conducted to assess annual decline in species of birds and to identify the causes of this decline at Taunsa Barrage wildlife Sanctuary, Punjab, Pakistan. Data were collected by direct census method during wintering and breeding periods (2001 to 2002 and 2008 to 2011). The results indicated an increasing trend in 157, whereas a decreasing trend in 14 species of birds. Among the species with declining trend, there was a 92% decrease in White-backed Vulture (Gyps bengalensis), 60% in Greater Painted Snipe (Rostratula benghalensis), 57% in Garganey (Anas querquedula), Pallas’s Fish Eagle and Long-legged Buzzard (Buteo rufinus) 50% each, 41% in Grey Heron (Ardea cinerea), 39% in Little Cormorant (Phalacrocorax niger), 37% in Gadwall (Anas strepera), 33% in Marsh Harrier (Circus aeruginosus), 30% in Black Drongo (Dicrurus macrocercus) and 26% in Red-crested Pochard (Netta rufina) population. Habitat exploitation, hunting and grazing were found the main causes of this decline. In conclusion, conservation and management of the study area is foremost to interests of declining bird population. It is suggested, therefore, to take immediate steps for the protection of the sanctuary to conserve the declining population of birds. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=population%20trends" title="population trends">population trends</a>, <a href="https://publications.waset.org/abstracts/search?q=wildlife%20sanctuary" title=" wildlife sanctuary"> wildlife sanctuary</a>, <a href="https://publications.waset.org/abstracts/search?q=bird" title=" bird"> bird</a>, <a href="https://publications.waset.org/abstracts/search?q=habitat%20exploitation" title=" habitat exploitation"> habitat exploitation</a> </p> <a href="https://publications.waset.org/abstracts/44174/assessment-of-population-trends-of-birds-at-taunsa-barrage-wildlife-sanctuary-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44174.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">275</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> A Spatio-Temporal Analysis and Change Detection of Wetlands in Diamond Harbour, West Bengal, India Using Normalized Difference Water Index</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lopita%20Pal">Lopita Pal</a>, <a href="https://publications.waset.org/abstracts/search?q=Suresh%20V.%20Madha"> Suresh V. Madha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wetlands are areas of marsh, fen, peat land or water, whether natural or artificial, permanent or temporary, with water that is static or flowing, fresh, brackish or salt, including areas of marine water the depth of which at low tide does not exceed six metres. The rapidly expanding human population, large scale changes in land use/land cover, burgeoning development projects and improper use of watersheds all has caused a substantial decline of wetland resources in the world. Major degradations have been impacted from agricultural, industrial and urban developments leading to various types of pollutions and hydrological perturbations. Regular fishing activities and unsustainable grazing of animals are degrading the wetlands in a slow pace. The paper focuses on the spatio-temporal change detection of the area of the water body and the main cause of this depletion. The total area under study (22°19’87’’ N, 88°20’23’’ E) is a wetland region in West Bengal of 213 sq.km. The procedure used is the Normalized Difference Water Index (NDWI) from multi-spectral imagery and Landsat to detect the presence of surface water, and the datasets have been compared of the years 2016, 2006 and 1996. The result shows a sharp decline in the area of water body due to a rapid increase in the agricultural practices and the growing urbanization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spatio-temporal%20change" title="spatio-temporal change">spatio-temporal change</a>, <a href="https://publications.waset.org/abstracts/search?q=NDWI" title=" NDWI"> NDWI</a>, <a href="https://publications.waset.org/abstracts/search?q=urbanization" title=" urbanization"> urbanization</a>, <a href="https://publications.waset.org/abstracts/search?q=wetland" title=" wetland"> wetland</a> </p> <a href="https://publications.waset.org/abstracts/60756/a-spatio-temporal-analysis-and-change-detection-of-wetlands-in-diamond-harbour-west-bengal-india-using-normalized-difference-water-index" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60756.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">283</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Use of Chlorophyll Meters to Assess In-Season Wheat Nitrogen Fertilizer Requirements in the Southern San Joaquin Valley</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brian%20Marsh">Brian Marsh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitrogen fertilizer is the most used and often the most mismanaged nutrient input. Nitrogen management has tremendous implications on crop productivity, quality and environmental stewardship. Sufficient nitrogen is needed to optimum yield and quality. Soil and in-season plant tissue testing for nitrogen status are a time consuming and expensive process. Real time sensing of plant nitrogen status can be a useful tool in managing nitrogen inputs. The objectives of this project were to assess the reliability of remotely sensed non-destructive plant nitrogen measurements compared to wet chemistry data from sampled plant tissue, develop in-season nitrogen recommendations based on remotely sensed data for improved nitrogen use efficiency and assess the potential for determining yield and quality from remotely sensed data. Very good correlations were observed between early-season remotely sensed crop nitrogen status and plant nitrogen concentrations and subsequent in-season fertilizer recommendations. The transmittance/absorbance type meters gave the most accurate readings. Early in-season fertilizer recommendation would be to apply 40 kg nitrogen per hectare plus 16 kg nitrogen per hectare for each unit difference measured with the SPAD meter between the crop and reference area or 25 kg plus 13 kg per hectare for each unit difference measured with the CCM 200. Once the crop was sufficiently fertilized meter readings became inconclusive and were of no benefit for determining nitrogen status, silage yield and quality and grain yield and protein. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wheat" title="wheat">wheat</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20fertilization" title=" nitrogen fertilization"> nitrogen fertilization</a>, <a href="https://publications.waset.org/abstracts/search?q=chlorophyll%20meter" title=" chlorophyll meter"> chlorophyll meter</a> </p> <a href="https://publications.waset.org/abstracts/18164/use-of-chlorophyll-meters-to-assess-in-season-wheat-nitrogen-fertilizer-requirements-in-the-southern-san-joaquin-valley" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18164.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">393</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Perspectives of charitable organisations on the impact of the COVID-19 pandemic on family carers of people with profound and multiple intellectual disabilities.</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mark%20Linden">Mark Linden</a>, <a href="https://publications.waset.org/abstracts/search?q=Trisha%20Forbes"> Trisha Forbes</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20Brown"> Michael Brown</a>, <a href="https://publications.waset.org/abstracts/search?q=Lynne%20Marsh"> Lynne Marsh</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Truesdale"> Maria Truesdale</a>, <a href="https://publications.waset.org/abstracts/search?q=Stuart%20Todd"> Stuart Todd</a>, <a href="https://publications.waset.org/abstracts/search?q=Nathan%20Hughes"> Nathan Hughes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background The COVID-19 pandemic resulted in a reduction of health care services for many family carers of people with profound and multiple intellectual disabilities (PMID). Due to lack of services, family carers turned to charities for support during the pandemic. We explored the views of charity workers across the UK and Ireland who supported family carers during the COVID-19 pandemic and explored their views on effective online support programmes for family carers. Methods This was a qualitative study using online focus groups with participants (n = 24) from five charities across the UK and Ireland. Questions focused on challenges, supports, coping and resources which helped during lockdown restrictions. Focus groups were audio recorded, transcribed verbatim, and analysed through thematic analysis. Findings Four themes were identified (i) ‘mental and emotional health’, (ii) ‘they who shout the loudest’ (fighting for services), (iii) ‘lack of trust in statutory services’ and (iv) ‘creating an online support programme’. Mental and emotional health emerged as the most prominent theme and included three subthemes named as ‘isolation’, ‘fear of COVID-19’ and ‘the exhaustion of caring’. Conclusions The withdrawal of many services during the COVID-19 pandemic further isolated and placed strain on family carers. Even after the end of the pandemic family cares continue to report on the struggle to receive adequate support. There is a critical need to design services, including online support programmes, in partnership with family carers which adequately address their needs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intellectual%20disability" title="intellectual disability">intellectual disability</a>, <a href="https://publications.waset.org/abstracts/search?q=family%20carers" title=" family carers"> family carers</a>, <a href="https://publications.waset.org/abstracts/search?q=COVID-19" title=" COVID-19"> COVID-19</a>, <a href="https://publications.waset.org/abstracts/search?q=charities" title=" charities"> charities</a> </p> <a href="https://publications.waset.org/abstracts/177582/perspectives-of-charitable-organisations-on-the-impact-of-the-covid-19-pandemic-on-family-carers-of-people-with-profound-and-multiple-intellectual-disabilities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177582.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">74</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Perceptions About the Academic Performance of Autistic Students</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Afaf%20Alhusayni">Afaf Alhusayni</a>, <a href="https://publications.waset.org/abstracts/search?q=Elizabeth%20Sheppard"> Elizabeth Sheppard</a>, <a href="https://publications.waset.org/abstracts/search?q=Asiyya%20Jaffrani"> Asiyya Jaffrani</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Mitchell"> Peter Mitchell</a>, <a href="https://publications.waset.org/abstracts/search?q=Lauren%20Marsh"> Lauren Marsh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Previous research has found that people make systematic judgments about others based on small glimpses of their behavior. Furthermore, autistic people are consistently judged more negatively than non-autistic people in terms of favourability and approachability. Objectives: This project focuses on a hitherto unstudied type of judgment that is highly relevant within a university context, judgments about academic performance. This is particularly important as autistic university students are less likely to complete their degrees than neurotypical students. Methods: Twenty-five neurotypical perceivers (21 females - 4 males) viewed a series of 4s video clips featuring an individual ‘target’ displaying natural behavior. Nine of these targets were autistic and nine were neurotypical. Perceivers were asked to rate each target on four aspects related to university life (motivation, success, grades, and happiness). Results: Autistic targets were judged more negatively on all aspects compared to neurotypical targets. Conclusions: This study concludes that neurotypical perceivers negatively judge the academic performance of autistic students. This suggests that autistic university students face unfavorable scrutiny and judgment, which may negatively impact their academic success. Implications: These initial findings provide important evidence that autistic people are negatively stigmatized within education environments. Further work is needed to ascertain the extent to which these negative judgments may feed into attainment gaps for autistic students. This information is useful for the education department, government, and social care organizations, enabling change in the provision of support for autistic students. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=autistic%20person%20perception" title="autistic person perception">autistic person perception</a>, <a href="https://publications.waset.org/abstracts/search?q=academic%20performance" title=" academic performance"> academic performance</a>, <a href="https://publications.waset.org/abstracts/search?q=stigma%20and%20judgment" title=" stigma and judgment"> stigma and judgment</a>, <a href="https://publications.waset.org/abstracts/search?q=higher%20education" title=" higher education"> higher education</a> </p> <a href="https://publications.waset.org/abstracts/144902/perceptions-about-the-academic-performance-of-autistic-students" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144902.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">135</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Acceptability of the Carers-ID Intervention for Family Carers of People with Intellectual Disabilities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mark%20Linden">Mark Linden</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20Brown"> Michael Brown</a>, <a href="https://publications.waset.org/abstracts/search?q=Lynne%20Marsh"> Lynne Marsh</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Truesdale"> Maria Truesdale</a>, <a href="https://publications.waset.org/abstracts/search?q=Stuart%20Todd"> Stuart Todd</a>, <a href="https://publications.waset.org/abstracts/search?q=Nathan%20Hughes"> Nathan Hughes</a>, <a href="https://publications.waset.org/abstracts/search?q=Trisha%20Forbes"> Trisha Forbes</a>, <a href="https://publications.waset.org/abstracts/search?q=Rachel%20Leonard"> Rachel Leonard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Family carers of people with intellectual disabilities (ID) face ongoing challenges in accessing services and often experience poor mental health. Online support programmes may prove effective in addressing the mental health and well-being needs of family carers. This study sought to test the acceptability of a newly developed online support programme for carers of people with intellectual disabilities called Carers-ID. Methods A sequential mixed-methods explanatory design was utilised. An adapted version of the Acceptability of Health Apps among Adolescents (AHAA) Scale was distributed to family carers who had viewed the Carers-ID.com intervention. Following this, participants were invited to take part in an online interview. Interview questions focused on participants’ experiences of using the programme and its acceptability. Qualitative and quantitative data were analysed separately and then brought together through the triangulation protocol developed by Farmer et al (2006). Findings: Seventy family carers responded to the acceptability survey, whilst 10 took part in interviews. Six themes were generated from interviews with family carers. Based on our triangulation, four areas of convergence were identified, these included, programme usability and ease, attitudes towards the programme, perceptions of effectiveness, and programme relatability. Conclusions: In order to be acceptable, online interventions for carers of people with ID need to be accessible, understandable and easy to use, as carers time is precious. Further research is needed to investigate the effectiveness of online interventions for family carers, specifically considering which carers the intervention works for, and for whom it may not. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intellectual%20disability" title="intellectual disability">intellectual disability</a>, <a href="https://publications.waset.org/abstracts/search?q=family%20carer" title=" family carer"> family carer</a>, <a href="https://publications.waset.org/abstracts/search?q=acceptability%20study" title=" acceptability study"> acceptability study</a>, <a href="https://publications.waset.org/abstracts/search?q=online%20intervention" title=" online intervention"> online intervention</a> </p> <a href="https://publications.waset.org/abstracts/177579/acceptability-of-the-carers-id-intervention-for-family-carers-of-people-with-intellectual-disabilities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177579.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">92</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">14</span> Experiences of Family Carers of People Intellectual Disabilities During the COVID-19 Pandemic</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mark%20Linden">Mark Linden</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20Brown"> Michael Brown</a>, <a href="https://publications.waset.org/abstracts/search?q=Lynne%20Marsh"> Lynne Marsh</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Truesdale"> Maria Truesdale</a>, <a href="https://publications.waset.org/abstracts/search?q=Stuart%20Todd"> Stuart Todd</a>, <a href="https://publications.waset.org/abstracts/search?q=Nathan%20Hughes"> Nathan Hughes</a>, <a href="https://publications.waset.org/abstracts/search?q=Trisha%20Forbes"> Trisha Forbes</a>, <a href="https://publications.waset.org/abstracts/search?q=Rachel%20Leonard"> Rachel Leonard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: The COVID-19 pandemic exacerbated the already significant strain placed on family carers of people with profound and multiple intellectual disabilities (PMID), given the withdrawal of many services during lockdown. The aim of this study was to explore the experiences of family carers of people with PMID during the COVID-19 pandemic. Methods: Online focus groups were conducted with family carers (n=126) from across the UK and the Republic of Ireland. Participants were asked about their experiences of the COVID-19 pandemic, coping strategies, and challenges faced. Focus groups were audio recorded, transcribed verbatim and analyzed through thematic analysis. Findings: Three themes emerged from our analysis of the data: (i) COVID-19 as a double-edged sword, (ii) The struggle for support (iii) the Constant nature of caring. These included 11 subthemes: (i) ‘COVID-19 as a catalyst for change’, ‘Challenges during COVID-19: dealing with change’, ‘Challenges during COVID-19: fear of COVID-19’, ‘The online environment: the new normal’ (ii) ‘Invisibility of male carers’, ‘Carers supporting carers’, ‘The only service you get is lip service: non-existent services’, ‘Knowing your rights’ (iii) ‘Emotional response to the caring role: Feeling devalued’, ‘Emotional response to the caring role: Desperation of caring’, ‘Multiple demands of the caring role.’ Conclusions: Poor or inconsistent access to services and support has been an ongoing difficulty for many family carers. The COVID-19 pandemic has only further intensified these difficulties, increasing family carers' stress. There is an urgent need to design services, such as online support programs, in partnership with family carers that adequately address their needs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intellectual%20disabilities" title="intellectual disabilities">intellectual disabilities</a>, <a href="https://publications.waset.org/abstracts/search?q=family%20carer" title=" family carer"> family carer</a>, <a href="https://publications.waset.org/abstracts/search?q=COVID-19" title=" COVID-19"> COVID-19</a>, <a href="https://publications.waset.org/abstracts/search?q=disability" title=" disability"> disability</a> </p> <a href="https://publications.waset.org/abstracts/177578/experiences-of-family-carers-of-people-intellectual-disabilities-during-the-covid-19-pandemic" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177578.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">79</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13</span> Application of Arbuscular Mycorrhizal Fungi as Biologically Based Strategy for Mitigation of Adverse Impact of Salt Stress on Wheat</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abeer%20Hashem">Abeer Hashem</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalid%20F.%20Almutairi"> Khalid F. Almutairi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ulkar%20Ibrahimova"> Ulkar Ibrahimova</a>, <a href="https://publications.waset.org/abstracts/search?q=Elsayed%20Fathi%20Abdallah"> Elsayed Fathi Abdallah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Salinity poses a significant challenge to wheat production, necessitating the exploration of strategies to mitigate its adverse effects. The present investigation aims to study the impact of arbuscular mycorrhizal fungi (AMF) application to improve plant tolerance in terms of growth, carbohydrate, photosynthetic characteristics, and antioxidant enzyme activities under salt stress conditions. So, a randomized complete block design with five replications was employed comprising various treatments of AMF application under salinity stress (200mM), and control samples were used for each treatment. The obtained results demonstrated significantly that AMF used in this study showed beneficial impacts in all parameters used as sensitive monitor for relation of plant-salt microbe interaction. The root colonization by AMF showed the highest plant growth criteria, relative water content, soluble sugar, starch, and total non-structural carbohydrates under both control and salinity stress conditions. Moreover, the application of AMF-treated plants showed the highest soluble protein concentration and activity in leaves and antioxidant enzymes (catalase, superoxide dismutase, guaiacol peroxidase). These findings highlight the potential impact of AMF application as a biologically based strategy to manage the mitigation of salt stress on wheat, which increases the availability of many salt marsh habitats for sustainable agriculture of such strategy crops. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=arbuscular%20mycorrhizal%20fungi" title="arbuscular mycorrhizal fungi">arbuscular mycorrhizal fungi</a>, <a href="https://publications.waset.org/abstracts/search?q=salt%20stress" title=" salt stress"> salt stress</a>, <a href="https://publications.waset.org/abstracts/search?q=plant%20growth%20criteria" title=" plant growth criteria"> plant growth criteria</a>, <a href="https://publications.waset.org/abstracts/search?q=soluble%20protein" title=" soluble protein"> soluble protein</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20enzymes" title=" antioxidant enzymes"> antioxidant enzymes</a>, <a href="https://publications.waset.org/abstracts/search?q=wheat%20plant" title=" wheat plant"> wheat plant</a> </p> <a href="https://publications.waset.org/abstracts/186129/application-of-arbuscular-mycorrhizal-fungi-as-biologically-based-strategy-for-mitigation-of-adverse-impact-of-salt-stress-on-wheat" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186129.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">47</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12</span> Mathematical Modeling to Reach Stability Condition within Rosetta River Mouth, Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Masria">Ali Masria </a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelazim%20Negm">Abdelazim Negm</a>, <a href="https://publications.waset.org/abstracts/search?q=Moheb%20Iskander"> Moheb Iskander</a>, <a href="https://publications.waset.org/abstracts/search?q=Oliver%20C.%20Saavedra"> Oliver C. Saavedra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Estuaries play an important role in exchanging water and providing a navigational pathway for ships. These zones are very sensitive and vulnerable to any interventions in coastal dynamics. Almost major of these inlets experience coastal problems such as severe erosion, and accretion. Rosetta promontory, Egypt is an example of this environment. It suffers from many coastal problems as erosion problem along the coastline and siltation problem inside the inlet. It is due to lack of water and sediment resources as a side effect of constructing the Aswan High dam. The shoaling of the inlet leads to hindering the navigation process of fishing boats, negative impacts to estuarine and salt marsh habitat and decrease the efficiency of the cross section to transfer the flow during emergencies to the sea. This paper aims to reach a new condition of stability of Rosetta Promontory by using coastal measures to control the sediment entering, and causes shoaling inside the inlet. These coastal measures include modifying the inlet cross section by using centered jetties, eliminate the coastal dynamic in the entrance using boundary jetties. This target is achieved by using a hydrodynamic model Coastal Modeling System (CMS). Extensive field data collection (hydrographic surveys, wave data, tide data, and bed morphology) is used to build and calibrate the model. About 20 scenarios were tested to reach a suitable solution that mitigate the coastal problems at the inlet. The results show that 360 m jetty in the eastern bank with system of sand bypass from the leeside of the jetty can stabilize the estuary. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rosetta%20promontory" title="Rosetta promontory">Rosetta promontory</a>, <a href="https://publications.waset.org/abstracts/search?q=erosion" title=" erosion"> erosion</a>, <a href="https://publications.waset.org/abstracts/search?q=sedimentation" title=" sedimentation"> sedimentation</a>, <a href="https://publications.waset.org/abstracts/search?q=inlet%20stability" title=" inlet stability"> inlet stability</a> </p> <a href="https://publications.waset.org/abstracts/13779/mathematical-modeling-to-reach-stability-condition-within-rosetta-river-mouth-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13779.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">587</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">11</span> A Cognitive Behavioural Therapy (CBT) Intervention Programme for Excessive Internet Use among Young Adults</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ke%20Guek%20Nee">Ke Guek Nee</a>, <a href="https://publications.waset.org/abstracts/search?q=Wong%20Siew%20Fan"> Wong Siew Fan</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigel%20V.%20Marsh"> Nigel V. Marsh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Excessive use of the Internet has become a cause for concern in many countries, including Malaysia. Such behaviour is reported to be more prevalent amongst young adults who are reported to be spending large amount of time on the Internet. The present study has three objectives. First one is designing a manual-based Cognitive Behavioural Therapy (CBT) programme to reduce problematic Internet use among young adults in Malaysia. Second one is examining the effectiveness of a manual-based CBT programme at the pilot study stage. Thirdly, the programme focuses on reducing the level of stress and anxiety in problematic Internet users. We adopted CBT with single subject experimental design method. A total of six participants completed the entire program. They were asked to report their daily Internet use and software was installed on their devices to record actual use. The data collection involved three time frame measurements: T1 (baseline), T2 (immediately during the last session of the intervention sessions), and T3 (follow-up). Three scales were used to measure the effectiveness of the program: Depression, Anxiety, Stress Scales (DASS), Social Interaction Anxiety Scale (SIAS), and Problematic Internet Use Questionnaire (PIUQ). The results revealed that the intervention programme has significantly improved two dimensions of problematic Internet use which were obsession and control disorder. The participants’ mental health also showed a deduction in means scores for depression, anxiety and stress with depression showing the greatest improvement after the intervention programme. The participants’ social anxiety showed a slight deduction in means scores. We concluded that the intervention programme designed was effective. However, its limitations need to be addressed in future research. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=excessive%20internet%20use" title="excessive internet use">excessive internet use</a>, <a href="https://publications.waset.org/abstracts/search?q=cognitive%20behavioral%20thearapy%20%28CBT%29" title=" cognitive behavioral thearapy (CBT)"> cognitive behavioral thearapy (CBT)</a>, <a href="https://publications.waset.org/abstracts/search?q=psychological%20well-being" title=" psychological well-being"> psychological well-being</a>, <a href="https://publications.waset.org/abstracts/search?q=young%20adults" title=" young adults"> young adults</a> </p> <a href="https://publications.waset.org/abstracts/7390/a-cognitive-behavioural-therapy-cbt-intervention-programme-for-excessive-internet-use-among-young-adults" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7390.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">453</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">10</span> The Development of an Agent-Based Model to Support a Science-Based Evacuation and Shelter-in-Place Planning Process within the United States</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kyle%20%20Burke%20Pfeiffer">Kyle Burke Pfeiffer</a>, <a href="https://publications.waset.org/abstracts/search?q=Carmella%20Burdi"> Carmella Burdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Karen%20Marsh"> Karen Marsh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The evacuation and shelter-in-place planning process employed by most jurisdictions within the United States is not informed by a scientifically-derived framework that is inclusive of the behavioral and policy-related indicators of public compliance with evacuation orders. While a significant body of work exists to define these indicators, the research findings have not been well-integrated nor translated into useable planning factors for public safety officials. Additionally, refinement of the planning factors alone is insufficient to support science-based evacuation planning as the behavioral elements of evacuees—even with consideration of policy-related indicators—must be examined in the context of specific regional transportation and shelter networks. To address this problem, the Federal Emergency Management Agency and Argonne National Laboratory developed an agent-based model to support regional analysis of zone-based evacuation in southeastern Georgia. In particular, this model allows public safety officials to analyze the consequences that a range of hazards may have upon a community, assess evacuation and shelter-in-place decisions in the context of specified evacuation and response plans, and predict outcomes based on community compliance with orders and the capacity of the regional (to include extra-jurisdictional) transportation and shelter networks. The intention is to use this model to aid evacuation planning and decision-making. Applications for the model include developing a science-driven risk communication strategy and, ultimately, in the case of evacuation, the shortest possible travel distance and clearance times for evacuees within the regional boundary conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=agent-based%20modeling%20for%20evacuation" title="agent-based modeling for evacuation">agent-based modeling for evacuation</a>, <a href="https://publications.waset.org/abstracts/search?q=decision-support%20for%20evacuation%20planning" title=" decision-support for evacuation planning"> decision-support for evacuation planning</a>, <a href="https://publications.waset.org/abstracts/search?q=evacuation%20planning" title=" evacuation planning"> evacuation planning</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20behavior%20in%20evacuation" title=" human behavior in evacuation"> human behavior in evacuation</a> </p> <a href="https://publications.waset.org/abstracts/77542/the-development-of-an-agent-based-model-to-support-a-science-based-evacuation-and-shelter-in-place-planning-process-within-the-united-states" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77542.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">232</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9</span> Effect of Different Temperatures and Cold Storage on Pupaes Apanteles gelechiidivoris Marsh (Hymenoptera: Braconidae) Parasitoid of Tuta absoluta Meyrick (Lepidoptera: Gelechiidae)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jessica%20Morales%20Perdomo">Jessica Morales Perdomo</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Rodriguez%20Caicedo"> Daniel Rodriguez Caicedo</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20Cantor%20Rincon"> Fernando Cantor Rincon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Tuta absoluta known as the tomato leaf miner, is one of the main pests in tomato crops in South America and the main pest in many European countries. Apanteles gelechiidivoris is a parasitoid of third instar Tuta absoluta larvae. Our studies have demonstrated that this parasitoid can cause up to 80% mortality of T. absoluta larvae in the field. We investigated cold storage of A. gelechiidivoris pupae as a method of mass production of this parasitoid. This storage method does not interfere with biological characteristics of the parasitoid. In this study, we evaluated the effect of different temperatures (4, 8 and 12°C) and different time duration (7, 14, 21 or 28 days) of cold storage on biological parameters of A. gelechiidivoris pupae and adults. The biological parameters of the parasitoid evaluated were: adult emergence time, lifespan, parasitism percentage and sex ratio. We found that the adult emergence time was delayed when the parasitoid pupae were stored at 4°C and 8°C. The shortest adult emergence was recorded when pupae were stored for seven days. The lowest adult emergence was found for pupae stored at 4°C and decreased significantly as the days of storage increased. We found high percentages of adult emergence when pupae were stored at 8°C and 12°C for seven days. Adult lifespan decreased with increasing days of cold storage. Adults emerging from pupae stored at 8°C during seven and 14 days showed the longest lifespan (nine days). The lowest parasitism rate was recorded at 4°C at every time point. The highest percentage of parasitism (80%) was found at 8°C during seven days of storage. The treatments had no effect on adults the sex ratio. The results suggest that A. gelechiidivoris pupae can be stored for up to 14 days at 8°C without affecting the efficacy of the parasitoid in the field. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biological%20control" title="biological control">biological control</a>, <a href="https://publications.waset.org/abstracts/search?q=cold%20storage" title=" cold storage"> cold storage</a>, <a href="https://publications.waset.org/abstracts/search?q=massive%20rearing" title=" massive rearing"> massive rearing</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20control" title=" quality control"> quality control</a> </p> <a href="https://publications.waset.org/abstracts/59160/effect-of-different-temperatures-and-cold-storage-on-pupaes-apanteles-gelechiidivoris-marsh-hymenoptera-braconidae-parasitoid-of-tuta-absoluta-meyrick-lepidoptera-gelechiidae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59160.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">372</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> The Carers-ID Online Intervention For Family Carers Of People With Intellectual Disabilities: A Feasibility Trial Protocol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mark%20Linden">Mark Linden</a>, <a href="https://publications.waset.org/abstracts/search?q=Rachel%20Leonard"> Rachel Leonard</a>, <a href="https://publications.waset.org/abstracts/search?q=Trisha%20Forbes"> Trisha Forbes</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20Brown"> Michael Brown</a>, <a href="https://publications.waset.org/abstracts/search?q=Lynne%20Marsh"> Lynne Marsh</a>, <a href="https://publications.waset.org/abstracts/search?q=Stuart%20Todd"> Stuart Todd</a>, <a href="https://publications.waset.org/abstracts/search?q=Nathan%20Hughes"> Nathan Hughes</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Truesdale"> Maria Truesdale</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Current interventions which aim to improve the mental health of family carers are often face to face, which can create barriers to full participation. Online interventions can offer flexibility in delivery compared to face to face approaches. The primary objective of this study is to determine the feasibility of delivering the Carers-ID online intervention, while the secondary outcome is to improve the mental health of family carers of people with intellectual disabilities. Methods: Family carers (n = 120) will be randomised to receive the intervention (n=60) or assigned to a wait-list control (n=60) group. The intervention (www.Carers-ID.com) consists of fourteen modules which cover topics including promoting resilience, providing peer support, reducing anxiety, managing stress, accessing local supports, managing family conflict and information for siblings who are carers. Primary outcomes for this study include acceptability and feasibility of the outcome measures, recruitment, participation and retention rates and effect sizes. Secondary outcomes will be completed at three time points (baseline, following intervention completion and three months after completion). Secondary outcomes include, depression, anxiety, stress, well-being , resilience and social connectedness. Participants (n=12) who have taken part in the intervention arm of the research will be invited to participate in semi-structured interviews as part of the process evaluation. Discussion: To determine whether a full-scale randomised controlled effectiveness trial is warranted, feasibility testing of the intervention and trial procedures is a necessary first step. The Carers-ID intervention provides an accessible resource for family carers to support their mental health and well-being. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intellectual%20disability" title="intellectual disability">intellectual disability</a>, <a href="https://publications.waset.org/abstracts/search?q=family%20carer" title=" family carer"> family carer</a>, <a href="https://publications.waset.org/abstracts/search?q=feasibility%20trial" title=" feasibility trial"> feasibility trial</a>, <a href="https://publications.waset.org/abstracts/search?q=online%20intervention" title=" online intervention"> online intervention</a> </p> <a href="https://publications.waset.org/abstracts/177581/the-carers-id-online-intervention-for-family-carers-of-people-with-intellectual-disabilities-a-feasibility-trial-protocol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177581.pdf" 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