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desynchronization</title> <meta name="description" content="Search results for: alpha/beta desynchronization"> <meta name="keywords" content="alpha/beta desynchronization"> <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 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="alpha/beta desynchronization"> <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> 1112</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: alpha/beta desynchronization</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1112</span> The Impact of Trait and Mathematical Anxiety on Oscillatory Brain Activity during Lexical and Numerical Error-Recognition Tasks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexander%20N.%20Savostyanov">Alexander N. Savostyanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Tatyana%20A.%20Dolgorukova"> Tatyana A. Dolgorukova</a>, <a href="https://publications.waset.org/abstracts/search?q=Elena%20A.%20Esipenko"> Elena A. Esipenko</a>, <a href="https://publications.waset.org/abstracts/search?q=Mikhail%20S.%20Zaleshin"> Mikhail S. Zaleshin</a>, <a href="https://publications.waset.org/abstracts/search?q=Margherita%20Malanchini"> Margherita Malanchini</a>, <a href="https://publications.waset.org/abstracts/search?q=Anna%20V.%20Budakova"> Anna V. Budakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20E.%20Saprygin"> Alexander E. Saprygin</a>, <a href="https://publications.waset.org/abstracts/search?q=Yulia%20V.%20Kovas"> Yulia V. Kovas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present study compared spectral-power indexes and cortical topography of brain activity in a sample characterized by different levels of trait and mathematical anxiety. 52 healthy Russian-speakers (age 17-32; 30 males) participated in the study. Participants solved an error recognition task under 3 conditions: A lexical condition (simple sentences in Russian), and two numerical conditions (simple arithmetic and complicated algebraic problems). Trait and mathematical anxiety were measured using self-repot questionnaires. EEG activity was recorded simultaneously during task execution. Event-related spectral perturbations (ERSP) were used to analyze spectral-power changes in brain activity. Additionally, sLORETA was applied in order to localize the sources of brain activity. When exploring EEG activity recorded after tasks onset during lexical conditions, sLORETA revealed increased activation in frontal and left temporal cortical areas, mainly in the alpha/beta frequency ranges. When examining the EEG activity recorded after task onset during arithmetic and algebraic conditions, additional activation in delta/theta band in the right parietal cortex was observed. The ERSP plots reveled alpha/beta desynchronizations within a 500-3000 ms interval after task onset and slow-wave synchronization within an interval of 150-350 ms. Amplitudes of these intervals reflected the accuracy of error recognition, and were differently associated with the three (lexical, arithmetic and algebraic) conditions. The level of trait anxiety was positively correlated with the amplitude of alpha/beta desynchronization. The level of mathematical anxiety was negatively correlated with the amplitude of theta synchronization and of alpha/beta desynchronization. Overall, trait anxiety was related with an increase in brain activation during task execution, whereas mathematical anxiety was associated with increased inhibitory-related activity. We gratefully acknowledge the support from the №11.G34.31.0043 grant from the Government of the Russian Federation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anxiety" title="anxiety">anxiety</a>, <a href="https://publications.waset.org/abstracts/search?q=EEG" title=" EEG"> EEG</a>, <a href="https://publications.waset.org/abstracts/search?q=lexical%20and%20numerical%20error-recognition%20tasks" title=" lexical and numerical error-recognition tasks"> lexical and numerical error-recognition tasks</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha%2Fbeta%20desynchronization" title=" alpha/beta desynchronization"> alpha/beta desynchronization</a> </p> <a href="https://publications.waset.org/abstracts/27035/the-impact-of-trait-and-mathematical-anxiety-on-oscillatory-brain-activity-during-lexical-and-numerical-error-recognition-tasks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27035.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">525</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">1111</span> Design Manufacture and Testing of a Combined Alpha-Beta Double Piston Stirling Engine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Calvin%20Antony">A. Calvin Antony</a>, <a href="https://publications.waset.org/abstracts/search?q=Sakthi%20Kumar%20Arul%20Prakash"> Sakthi Kumar Arul Prakash</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20R.%20Sanal%20Kumar"> V. R. Sanal Kumar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper a unique alpha-beta double piston 'stirling engine' is designed, manufactured and conducted laboratory test to ameliorate the efficiency of the stirling engine. The paper focuses on alpha and beta type engines, capturing their benefits and eradicating their short comings; along with the output observed from the flywheel. In this model alpha engine is kinematically with a piston cylinder arrangement which works quite like a beta engine. The piston of the new cylinder is so designed that it replicates a glued displacer and power piston as similar to that of beta engine. The bigger part of the piston is the power piston, which has a gap around it, while the smaller part of the piston is tightly fit in the cylinder and acts like the displacer piston. We observed that the alpha-beta double piston stirling engine produces 25% increase in power compare to a conventional alpha stirling engine. This working model is a pointer towards for the design and development of an alpha-beta double piston Stirling engine for industrial applications for producing electricity from the heat producing exhaust gases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alpha-beta%20double%20piston%20stirling%20engine" title="alpha-beta double piston stirling engine ">alpha-beta double piston stirling engine </a>, <a href="https://publications.waset.org/abstracts/search?q=alpha%20stirling%20engine" title=" alpha stirling engine "> alpha stirling engine </a>, <a href="https://publications.waset.org/abstracts/search?q=beta%20double%20piston%20stirling%20engine" title=" beta double piston stirling engine "> beta double piston stirling engine </a>, <a href="https://publications.waset.org/abstracts/search?q=electricity%20from%20stirling%20engine" title=" electricity from stirling engine"> electricity from stirling engine</a> </p> <a href="https://publications.waset.org/abstracts/35104/design-manufacture-and-testing-of-a-combined-alpha-beta-double-piston-stirling-engine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35104.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">533</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">1110</span> Effect of Oxytocin on Cytosolic Calcium Concentration of Alpha and Beta Cells in Pancreas</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rauza%20Sukma%20Rita">Rauza Sukma Rita</a>, <a href="https://publications.waset.org/abstracts/search?q=Katsuya%20Dezaki"> Katsuya Dezaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuko%20Maejima"> Yuko Maejima</a>, <a href="https://publications.waset.org/abstracts/search?q=Toshihiko%20Yada"> Toshihiko Yada</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Oxytocin is a nine-amino acid peptide synthesized in the paraventricular nucleus (PVN) and supraoptic nucleus (SON) of the hypothalamus. Oxytocin promotes contraction of the uterus during birth and milk ejection during breast feeding. Although oxytocin receptors are found predominantly in the breasts and uterus of females, many tissues and organs express oxytocin receptors, including the pituitary, heart, kidney, thymus, vascular endothelium, adipocytes, osteoblasts, adrenal gland, pancreatic islets, and many cell lines. On the other hand, in pancreatic islets, oxytocin receptors are expressed in both α-cells and β-cells with stronger expression in α- cells. However, to our knowledge there are no reports yet about the effect of oxytocin on cytosolic calcium reaction on α and β-cell. This study aims to investigate the effect of oxytocin on α-cells and β-cells and its oscillation pattern. Islet of Langerhans from wild type mice were isolated by collagenase digestion. Isolated and dissociated single cells either α-cells or β-cells on coverslips were mounted in an open chamber and superfused in HKRB. Cytosolic concentration ([Ca2+]i) in single cells were measured by fura-2 microfluorimetry. After measurement of [Ca2+]i, α-cells were identified by subsequent immunocytochemical staining using an anti-glucagon antiserum. In β-cells, the [Ca2+]i increase in response to oxytocin was observed only under 8.3 mM glucose condition, whereas in α-cells, [Ca2+]i an increase induced by oxytocin was observed in both 2.8 mM and 8.3 mM glucose. The oscillation incidence was induced more frequently in β-cells compared to α-cells. In conclusion, the present study demonstrated that oxytocin directly interacts with both α-cells and β-cells and induces increase of [Ca2+]i and its specific patterns. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=%CE%B1-cells" title="α-cells">α-cells</a>, <a href="https://publications.waset.org/abstracts/search?q=%CE%B2-cells" title=" β-cells"> β-cells</a>, <a href="https://publications.waset.org/abstracts/search?q=cytosolic%20calcium%20concentration" title=" cytosolic calcium concentration"> cytosolic calcium concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=oscillation" title=" oscillation"> oscillation</a>, <a href="https://publications.waset.org/abstracts/search?q=oxytocin" title=" oxytocin"> oxytocin</a> </p> <a href="https://publications.waset.org/abstracts/58454/effect-of-oxytocin-on-cytosolic-calcium-concentration-of-alpha-and-beta-cells-in-pancreas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58454.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">192</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">1109</span> Study of the Kinetic of the Reduction of Alpha and Beta PbO2 in H2SO4 on the Microcavity Electrode </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Chahmana">N. Chahmana</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Zerroual"> I. Zerroual</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of our work is the contribution to the improvement of the performances of the positive plate of the lead acid battery. For that, we synthesized two varieties of PbO2 used in industry, alpha and beta PbO2 by electrochemical way starting from the not formed industrial plates. We studied the kinetics of reduction of the alpha varieties and PbO2 beta on electrode with microcavity in sulphuric medium. The electrochemical study of the powders of α and β-PbO2 was made by cyclic voltamperometry with sweeping of potential by using a traditional assembly with three electrodes. Values of the coefficient of diffusion of the proton in α and β-PbO2 are respectively equal to 0.498*10-8cm2 /s and 0.793*10-8 cm2 /s. During the cycling of the two varieties of PbO2, we obtain a clear increase in the capacity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lead%20accumulator" title="lead accumulator">lead accumulator</a>, <a href="https://publications.waset.org/abstracts/search?q=%CE%B1%20and%20%CE%B2%20-%20PbO2" title=" α and β - PbO2"> α and β - PbO2</a>, <a href="https://publications.waset.org/abstracts/search?q=synthesis" title=" synthesis"> synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=kinetics" title=" kinetics"> kinetics</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclic%20voltametry" title=" cyclic voltametry"> cyclic voltametry</a>, <a href="https://publications.waset.org/abstracts/search?q=coefficient%20of%20diffusion" title=" coefficient of diffusion"> coefficient of diffusion</a> </p> <a href="https://publications.waset.org/abstracts/22434/study-of-the-kinetic-of-the-reduction-of-alpha-and-beta-pbo2-in-h2so4-on-the-microcavity-electrode" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22434.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">577</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">1108</span> Prediction of All-Beta Protein Secondary Structure Using Garnier-Osguthorpe-Robson Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Tejasri">K. Tejasri</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Suvarna%20Vani"> K. Suvarna Vani</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Prathyusha"> S. Prathyusha</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Ramya"> S. Ramya</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Proteins are chained sequences of amino acids which are brought together by the peptide bonds. Many varying formations of the chains are possible due to multiple combinations of amino acids and rotation in numerous positions along the chain. Protein structure prediction is one of the crucial goals worked towards by the members of bioinformatics and theoretical chemistry backgrounds. Among the four different structure levels in proteins, we emphasize mainly the secondary level structure. Generally, the secondary protein basically comprises alpha-helix and beta-sheets. Multi-class classification problem of data with disparity is truly a challenge to overcome and has to be addressed for the beta strands. Imbalanced data distribution constitutes a couple of the classes of data having very limited training samples collated with other classes. The secondary structure data is extracted from the protein primary sequence, and the beta-strands are predicted using suitable machine learning algorithms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=proteins" title="proteins">proteins</a>, <a href="https://publications.waset.org/abstracts/search?q=secondary%20structure%20elements" title=" secondary structure elements"> secondary structure elements</a>, <a href="https://publications.waset.org/abstracts/search?q=beta-sheets" title=" beta-sheets"> beta-sheets</a>, <a href="https://publications.waset.org/abstracts/search?q=beta-strands" title=" beta-strands"> beta-strands</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha-helices" title=" alpha-helices"> alpha-helices</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20learning%20algorithms" title=" machine learning algorithms"> machine learning algorithms</a> </p> <a href="https://publications.waset.org/abstracts/158938/prediction-of-all-beta-protein-secondary-structure-using-garnier-osguthorpe-robson-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158938.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">94</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">1107</span> Titanium Alloys for Cryogenic Gas Bottle Applications: A Comparative Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bhanu%20Pant">Bhanu Pant</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjay%20H.%20Upadhyay"> Sanjay H. Upadhyay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Titanium alloys, owing to their high specific strength coupled with excellent resistance to corrosion in many severe environments, find extensive usage in the aerospace sector. Alpha and beta lean Titanium alloys have an additional characteristic of exhibiting high toughness with an NTS/ UTS ratio greater than one down to liquid oxygen and liquid helium temperatures. The cryogenic stage of high-performance rockets utilizes cryo-fluid submerged pressurizing tanks to improve volume to mass performance factor. A superior volume-to-mass ratio is achieved for LH2-submerged pressurizing tanks as compared to those submerged in LOX. Such high-efficiency tanks for LH2 submerged application necessitate the use of difficult to process alpha type Ti5Al2.5Sn-ELI alloy, which requires close control of process parameters to develop the tanks. In the present paper, a comparison of this alpha-type cryogenic Titanium alloy has been brought out with conventional alpha-beta Ti6Al4V-ELI alloy, which is usable up to LOX temperatures. Specific challenges faced during the development of these cryogenic pressurizing tanks for a launch vehicle based on the author's experience are included in the paper on the comparatively lesser-studied alpha Ti5Al2.5Sn-ELI alloy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cryogenic%20tanks" title="cryogenic tanks">cryogenic tanks</a>, <a href="https://publications.waset.org/abstracts/search?q=titanium%20Alloys" title=" titanium Alloys"> titanium Alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=NTS%2FUTS%20ratio" title=" NTS/UTS ratio"> NTS/UTS ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha%20and%20alpha-beta%20ELI%20alloys" title=" alpha and alpha-beta ELI alloys"> alpha and alpha-beta ELI alloys</a> </p> <a href="https://publications.waset.org/abstracts/184964/titanium-alloys-for-cryogenic-gas-bottle-applications-a-comparative-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/184964.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">62</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">1106</span> Curcumin Promotes the Deoxygenated State of Hemoglobin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Roohallah%20Yousefi">Roohallah Yousefi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: In beta-thalassemia, an imbalance in the production of beta subunits of hemoglobin leads to the oxidation and deposition of excess alpha-globin chains at the cell membrane, resulting in the hemolysis of erythrocytes and a disorder of erythropoiesis. Antioxidants, such as curcumin, may promote this progression. This study aims to investigate the antioxidant effect of curcumin on hemolysate samples from patients with beta-thalassemia. Materials and methods: Pure curcumin was extracted and purified for use in studying its effect on the visual light absorbance of hemoglobin in hemolysate samples from beta-thalassemia patients compared to control samples. Changes in light absorbance at 540 and 700 nm wavelengths during exposure to curcumin were analyzed to examine the shift from oxyhemoglobin to deoxyhemoglobin. Results: Curcumin was found to dissolve rapidly and to a high degree in ethanol at 1 mg/ml, but did not dissolve in distilled water at the same concentration. The curcumin addition to the hemolysate sample of a patient with beta-thalassemia resulted in a decrease in the light absorbance of the sample at 540 nm wavelength, with minimal changes observed in the control sample. Conclusion: Curcumin deoxygenated the hemolysate samples from both the patient and control, causing hemoglobin precipitation to occur slowly. The study suggests a greater potential role for curcumin in deoxygenating hemoglobin in the hemolysate samples of beta-thalassemia patients compared to those of the normal control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beta-thalassemia" title="beta-thalassemia">beta-thalassemia</a>, <a href="https://publications.waset.org/abstracts/search?q=hemoglobin" title=" hemoglobin"> hemoglobin</a>, <a href="https://publications.waset.org/abstracts/search?q=curcumin" title=" curcumin"> curcumin</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha-globin" title=" alpha-globin"> alpha-globin</a> </p> <a href="https://publications.waset.org/abstracts/189204/curcumin-promotes-the-deoxygenated-state-of-hemoglobin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/189204.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">29</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">1105</span> Determination of Gross Alpha and Gross Beta Activity in Water Samples by iSolo Alpha/Beta Counting System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thiwanka%20Weerakkody">Thiwanka Weerakkody</a>, <a href="https://publications.waset.org/abstracts/search?q=Lakmali%20Handagiripathira"> Lakmali Handagiripathira</a>, <a href="https://publications.waset.org/abstracts/search?q=Poshitha%20Dabare"> Poshitha Dabare</a>, <a href="https://publications.waset.org/abstracts/search?q=Thisari%20Guruge"> Thisari Guruge</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The determination of gross alpha and beta activity in water is important in a wide array of environmental studies and these parameters are considered in international legislations on the quality of water. This technique is commonly applied as screening method in radioecology, environmental monitoring, industrial applications, etc. Measuring of Gross Alpha and Beta emitters by using iSolo alpha beta counting system is an adequate nuclear technique to assess radioactivity levels in natural and waste water samples due to its simplicity and low cost compared with the other methods. Twelve water samples (Six samples of commercially available bottled drinking water and six samples of industrial waste water) were measured by standard method EPA 900.0 consisting of the gas-less, firm wear based, single sample, manual iSolo alpha beta counter (Model: SOLO300G) with solid state silicon PIPS detector. Am-241 and Sr90/ Y90 calibration standards were used to calibrate the detector. The minimum detectable activities are 2.32mBq/L and 406mBq/L, for alpha and beta activity, respectively. Each of the 2L water samples was evaporated (at low heat) to a small volume and transferred into 50mm stainless steel counting planchet evenly (for homogenization) and heated by IR lamp and the constant weighted residue was obtained. Then the samples were counted for gross alpha and beta. Sample density on the planchet area was maintained below 5mg/cm. Large quantities of solid wastes sludges and waste water are generated every year due to various industries. This water can be reused for different applications. Therefore implementation of water treatment plants and measuring water quality parameters in industrial waste water discharge is very important before releasing them into the environment. This waste may contain different types of pollutants, including radioactive substances. All these measured waste water samples having gross alpha and beta activities, lower than the maximum tolerance limits for industrial waste water discharge of industrial waste in to inland surface water, that is 10-9µCi/mL and 10-8µCi/mL for gross alpha and beta respectively (National Environmental Act, No. 47 of 1980). This is according to extraordinary gazette of the democratic socialist republic of Sri Lanka in February 2008. The measured water samples were below the recommended radioactivity levels and do not pose any radiological hazard when releasing the environment. Drinking water is an essential requirement of life. All the drinking water samples were below the permissible levels of 0.5Bq/L for gross alpha activity and 1Bq/L for gross beta activity. The values have been proposed by World Health Organization in 2011; therefore the water is acceptable for consumption of humans without any further clarification with respect to their radioactivity. As these screening levels are very low, the individual dose criterion (IDC) would usually not be exceeded (0.1mSv y⁻¹). IDC is a criterion for evaluating health risks from long term exposure to radionuclides in drinking water. Recommended level of 0.1mSv/y expressed a very low level of health risk. This monitoring work will be continued further for environmental protection purposes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=drinking%20water" title="drinking water">drinking water</a>, <a href="https://publications.waset.org/abstracts/search?q=gross%20alpha" title=" gross alpha"> gross alpha</a>, <a href="https://publications.waset.org/abstracts/search?q=gross%20beta" title=" gross beta"> gross beta</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20water" title=" waste water"> waste water</a> </p> <a href="https://publications.waset.org/abstracts/126885/determination-of-gross-alpha-and-gross-beta-activity-in-water-samples-by-isolo-alphabeta-counting-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126885.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">198</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">1104</span> Interaction Effects of Dietary Ginger, Zingiber Officinale, on Plasma Protein Fractions in Rainbow Trout, Oncorhynchus Mykiss</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Taheri%20Mirghaed">Ali Taheri Mirghaed</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Ahani"> Sara Ahani</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashkan%20Zargar"> Ashkan Zargar</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyyed%20Morteza%20Hoseini"> Seyyed Morteza Hoseini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diseases are the major challenges in intensive aquaculture that cause significant annual losses. Antibiotic-therapy is a common way to control bacterial disease in fish, and oxytetracycline (OTC) is the only oral antibiotic in aquaculture approved FDA. OTC has been found to have negative effects on fish, such as oxidative stress and immune-suppression, thus, it is necessary to mitigate such effects. Medicinal herbs have various benefits on fish, including antioxidant, immunostimulant, and anti-microbial effects. Therefore, we hypothesized if dietary ginger meal (GM) interacts with dietary OTC by monitoring plasma protein fractions in rainbow trout. The study was conducted as a 2 × 2 factorial design, including diets containing 0 and 1% GM and 0 and 1.66 % OTC (corresponding to 100 mg/kg fish biomass per day). After ten days treating the fish (60 g individual weight) with these feeds, blood samples were taken from al treatments (n =3). Plasma was separated by centrifugation, and protein fractions were determined by electrophoresis. The results showed that OTC and GM had interaction effects on total protein (P<0.001), albumin (P<0.001), alpha-1 fraction (P=0.010), alpha-2 fraction (P=0.001), beta-2 fraction (P=0.014), and gamma fraction (P<0.001). Beta-1 fraction was significantly (P=0.030) affected by dietary GM. GM decreased plasma total protein, albumin, and beta-2 but increased beta-1 fraction. OTC significantly decreased total protein (P<0.001), albumin (P=0.001), alpha-2 fraction (P<0.001), beta-2 fraction (P=0.004), and gamma fraction (P<0.001) but had no significant effects on alpha-1 and beta-1 fractions. Dietary GM inhibited/suppressed the effects of dietary OTC on the plasma total protein and protein fractions. In conclusion, adding 1% GM to diet can mitigate the negative effects of dietary OTC on plasma proteins. Thus, GM may boost health of rainbow trout during the period of medication with OTC. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ginger" title="ginger">ginger</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20protein%20electrophoresis" title=" plasma protein electrophoresis"> plasma protein electrophoresis</a>, <a href="https://publications.waset.org/abstracts/search?q=dietary%20additive" title=" dietary additive"> dietary additive</a>, <a href="https://publications.waset.org/abstracts/search?q=rainbow%20trout" title=" rainbow trout"> rainbow trout</a> </p> <a href="https://publications.waset.org/abstracts/170310/interaction-effects-of-dietary-ginger-zingiber-officinale-on-plasma-protein-fractions-in-rainbow-trout-oncorhynchus-mykiss" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170310.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">90</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">1103</span> Natural Radioactivity in Foods Consumed in Turkey</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=E.%20Kam">E. Kam</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Karahan"> G. Karahan</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Asl%C4%B1yuksek"> H. Aslıyuksek</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Bozkurt"> A. Bozkurt</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to determine the natural radioactivity levels in some foodstuffs produced in Turkey. For this purpose, 48 different foods samples were collected from different land parcels throughout the country. All samples were analyzed to designate both gross alpha and gross beta radioactivities and the radionuclides’ concentrations. The gross alpha radioactivities were measured as below 1 Bq kg<sup>-1</sup> in most of the samples, some of them being due to the detection limit of the counting system. The gross beta radioactivity levels ranged from 1.8 Bq kg<sup>-1</sup> to 453 Bq kg<sup>-1</sup>, larger levels being observed in leguminous seeds while the highest level being in haricot bean. The concentrations of natural radionuclides in the foodstuffs were investigated by the method of gamma spectroscopy. High levels of <sup>40</sup>K were measured in all the samples, the highest activities being again in leguminous seeds. Low concentrations of <sup>238</sup>U and <sup>226</sup>Ra were found in some of the samples, which are comparable to the reported results in the literature. Based on the activity concentrations obtained in this study, average annual effective dose equivalents for the radionuclides <sup>226</sup>Ra, <sup>238</sup>U, and <sup>40</sup>K were calculated as 77.416 µSv y<sup>-1</sup>, 0.978 µSv y<sup>-1</sup>, and 140.55 µSv y<sup>-1</sup>, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=foods" title="foods">foods</a>, <a href="https://publications.waset.org/abstracts/search?q=radioactivity" title=" radioactivity"> radioactivity</a>, <a href="https://publications.waset.org/abstracts/search?q=gross%20alpha" title=" gross alpha"> gross alpha</a>, <a href="https://publications.waset.org/abstracts/search?q=gross%20beta" title=" gross beta"> gross beta</a>, <a href="https://publications.waset.org/abstracts/search?q=annual%20equivalent%20dose" title=" annual equivalent dose"> annual equivalent dose</a>, <a href="https://publications.waset.org/abstracts/search?q=Turkey" title=" Turkey"> Turkey</a> </p> <a href="https://publications.waset.org/abstracts/52059/natural-radioactivity-in-foods-consumed-in-turkey" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52059.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">454</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">1102</span> Smart Beta Portfolio Optimization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saud%20Al%20Mahdi">Saud Al Mahdi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Traditionally,portfolio managers have been discouraged from timing the market. This means, for example, that equity managers have been forced to adhere strictly to a benchmark with static or relatively stable components, such as the SP 500 or the Russell 3000. This means that the portfolio’s exposures to all risk factors should mimic as closely as possible the corresponding exposures of the benchmark. The main risk factor, of course, is the market itself. Effectively, a long-only portfolio would be constrained to have a beta 1. More recently, however, managers have been given greater discretion to adjust their portfolio’s risk exposures (in particular, the beta of their portfolio) dynamically to match the manager’s beliefs about future performance of the risk factors themselves. This freedom translates into the manager’s ability to adjust the portfolio’s beta dynamically. These strategies have come to be known as smart beta strategies. Adjusting beta dynamically amounts to attempting to "time" the market; that is, to increase exposure when one anticipates that the market will rise, and to decrease it when one anticipates that the market will fall. Traditionally, market timing has been believed to be impossible to perform effectively and consistently. Moreover, if a majority of market participants do it, their combined actions could destabilize the market. The aim of this project is to investigate so-called smart beta strategies to determine if they really can add value, or if they are merely marketing gimmicks used to sell dubious investment strategies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beta" title="beta">beta</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha" title=" alpha"> alpha</a>, <a href="https://publications.waset.org/abstracts/search?q=active%20portfolio%20management" title=" active portfolio management"> active portfolio management</a>, <a href="https://publications.waset.org/abstracts/search?q=trading%20strategies" title=" trading strategies "> trading strategies </a> </p> <a href="https://publications.waset.org/abstracts/28119/smart-beta-portfolio-optimization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28119.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">355</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">1101</span> Mathematical Modelling of the Effect of Glucose on Pancreatic Alpha-Cell Activity </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Karen%20K.%20Perez-Ramirez">Karen K. Perez-Ramirez</a>, <a href="https://publications.waset.org/abstracts/search?q=Genevieve%20Dupont"> Genevieve Dupont</a>, <a href="https://publications.waset.org/abstracts/search?q=Virginia%20Gonzalez-Velez"> Virginia Gonzalez-Velez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pancreatic alpha-cells participate on glucose regulation together with beta cells. They release glucagon hormone when glucose level is low to stimulate gluconeogenesis from the liver. As other excitable cells, alpha cells generate Ca2+ and metabolic oscillations when they are stimulated. It is known that the glucose level can trigger or silence this activity although it is not clear how this occurs in normal and diabetic people. In this work, we propose an electric-metabolic mathematical model implemented in Matlab to study the effect of different glucose levels on the electrical response and Ca2+ oscillations of an alpha cell. Our results show that Ca2+ oscillations appear in opposite phase with metabolic oscillations in a window of glucose values. The model also predicts a direct relationship between the level of glucose and the intracellular adenine nucleotides showing a self-regulating pathway for the alpha cell. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ca2%2B%20oscillations" title="Ca2+ oscillations">Ca2+ oscillations</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematical%20model" title=" mathematical model"> mathematical model</a>, <a href="https://publications.waset.org/abstracts/search?q=metabolic%20oscillations" title=" metabolic oscillations"> metabolic oscillations</a>, <a href="https://publications.waset.org/abstracts/search?q=pancreatic%20alpha%20cell" title=" pancreatic alpha cell"> pancreatic alpha cell</a> </p> <a href="https://publications.waset.org/abstracts/96002/mathematical-modelling-of-the-effect-of-glucose-on-pancreatic-alpha-cell-activity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96002.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">178</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">1100</span> A Slip Transmission through Alpha/Beta Boundaries in a Titanium Alloy (Ti-6Al-4V) </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rayan%20B.%20M.%20Ameen">Rayan B. M. Ameen</a>, <a href="https://publications.waset.org/abstracts/search?q=Ian%20P.%20Jones"> Ian P. Jones</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu%20Lung%20Chiu"> Yu Lung Chiu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Single alpha-beta colony micro-pillars have been manufactured from a polycrystalline commercial Ti-6Al-4V sample using Focused Ion Beam (FIB). Each pillar contained two alpha lamellae separated by a thin fillet of beta phase. A nano-indenter was then used to conduct uniaxial micro-compression tests on Ti alloy single crystals, using a diamond flat tip as a compression platen. By controlling the crystal orientation along the micro-pillar using Electron back scattering diffraction (EBSD) different slip systems have been selectively activated. The advantage of the micro-compression method over conventional mechanical testing techniques is the ability to localize a single crystal volume which is characterizable after deformation. By matching the stress-strain relations resulting from micro-compression experiments to TEM (Transmission Electron Microscopy) studies of slip transmission mechanisms through the α-β interfaces, some proper constitutive material parameters such as the role of these interfaces in determining yield, strain-hardening behaviour, initial dislocation density and the critical resolved shear stress are suggested. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=%CE%B1%2F%CE%B2-Ti%20alloy" title="α/β-Ti alloy">α/β-Ti alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=focused%20ion%20beam" title=" focused ion beam"> focused ion beam</a>, <a href="https://publications.waset.org/abstracts/search?q=micro-mechanical%20test" title=" micro-mechanical test"> micro-mechanical test</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-indentation" title=" nano-indentation"> nano-indentation</a>, <a href="https://publications.waset.org/abstracts/search?q=transmission%20electron%20diffraction" title=" transmission electron diffraction"> transmission electron diffraction</a>, <a href="https://publications.waset.org/abstracts/search?q=plastic%20flow" title=" plastic flow"> plastic flow</a> </p> <a href="https://publications.waset.org/abstracts/18002/a-slip-transmission-through-alphabeta-boundaries-in-a-titanium-alloy-ti-6al-4v" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18002.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">385</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">1099</span> Effects of Sn and Al on Phase Stability and Mechanical Properties of Metastable Beta Ti Alloys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yonosuke%20Murayama">Yonosuke Murayama</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We have developed and studied a metastable beta Ti alloy, which shows super-elasticity and low Young’s modulus according to the phase stability of its beta phase. The super-elasticity and low Young’s modulus are required in a wide range of applications in various industrial fields. For example, the metallic implant with low Young’s modulus and non-toxicity is desirable because the large difference of Young’s modulus between the human bone and the implant material may cause a stress-shielding phenomenon. We have investigated the role of Sn and Al in metastable beta Ti-Cr-Sn, Ti-Cr-Al, Ti-V-Sn, and Ti-V-Al alloys. The metastable beta Ti-Cr-Sn, Ti-Cr-Al, Ti-V-Sn, and Ti-V-Al alloys form during quenching from the beta field at high temperature. While Cr and V act as beta stabilizers, Sn and Al are considered as elements to suppress the athermal omega phase produced during quenching. The athermal omega phase degrades the properties of super-elasticity and Young’s modulus. Although Al and Sn as single elements are considered as an alpha stabilizer and neutral, respectively, Sn and Al acted also as beta stabilizers when added simultaneously with beta stabilized element of Cr or V in this experiment. The quenched microstructure of Ti-Cr-Sn, Ti-Cr-Al, Ti-V-Sn, and Ti-V-Al alloys shifts from martensitic structure to beta single-phase structure with increasing Cr or V. The Young’s modulus of Ti-Cr-Sn, Ti-Cr-Al, Ti-V-Sn, and Ti-V-Al alloys decreased and then increased with increasing Cr or V, each showing its own minimum value of Young's modulus respectively. The composition of the alloy with the minimum Young’s modulus is a near border composition where the quenched microstructure shifts from martensite to beta. The border composition of Ti-Cr-Sn and Ti-V-Sn alloys required only less amount of each beta stabilizer, Cr or V, than Ti-Cr-Al and Ti-V-Al alloys. This indicates that the effect of Sn as a beta stabilizer is stronger than Al. Sn and Al influenced the competitive relation between stress-induced martensitic transformation and slip deformation. Thus, super-elastic properties of metastable beta Ti-Cr-Sn, Ti-Cr-Al, Ti-V-Sn, and Ti-V-Al alloys varied depending on the alloyed element, Sn or Al. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metastable%20beta%20Ti%20alloy" title="metastable beta Ti alloy">metastable beta Ti alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=super-elasticity" title=" super-elasticity"> super-elasticity</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20Young%E2%80%99s%20modulus" title=" low Young’s modulus"> low Young’s modulus</a>, <a href="https://publications.waset.org/abstracts/search?q=stress-induced%20martensitic%20transformation" title=" stress-induced martensitic transformation"> stress-induced martensitic transformation</a>, <a href="https://publications.waset.org/abstracts/search?q=beta%20stabilized%20element" title=" beta stabilized element"> beta stabilized element</a> </p> <a href="https://publications.waset.org/abstracts/123727/effects-of-sn-and-al-on-phase-stability-and-mechanical-properties-of-metastable-beta-ti-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123727.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">146</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">1098</span> Behavioral and EEG Reactions in Children during Recognition of Emotionally Colored Sentences That Describe the Choice Situation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tuiana%20A.%20Aiusheeva">Tuiana A. Aiusheeva</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergey%20S.%20Tamozhnikov"> Sergey S. Tamozhnikov</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20E.%20Saprygin"> Alexander E. Saprygin</a>, <a href="https://publications.waset.org/abstracts/search?q=Arina%20A.%20Antonenko"> Arina A. Antonenko</a>, <a href="https://publications.waset.org/abstracts/search?q=Valentina%20V.%20Stepanova"> Valentina V. Stepanova</a>, <a href="https://publications.waset.org/abstracts/search?q=Natalia%20N.%20Tolstykh"> Natalia N. Tolstykh</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20N.%20Savostyanov"> Alexander N. Savostyanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Situation of choice is an important condition for the formation of essential character qualities of a child, such as being initiative, responsible, hard-working. We have studied the behavioral and EEG reactions in Russian schoolchildren during recognition of syntactic errors in emotionally colored sentences that describe the choice situation. Twenty healthy children (mean age 9,0±0,3 years, 12 boys, 8 girls) were examined. Forty sentences were selected for the experiment; the half of them contained a syntactic error. The experiment additionally had the hidden condition: 50% of the sentences described the children's own choice and were emotionally colored (positive or negative). The other 50% of the sentences described the forced-choice situation, also with positive or negative coloring. EEG were recorded during execution of error-recognition task. Reaction time and quality of syntactic error detection were chosen as behavioral measures. Event-related spectral perturbation (ERSP) was applied to characterize the oscillatory brain activity of children. There were two time-frequency intervals in EEG reactions: (1) 500-800 ms in the 3-7 Hz frequency range (theta synchronization) and (2) 500-1000 ms in the 8-12 Hz range (alpha desynchronization). We found out that behavioral and brain reactions in child brain during recognition of positive and negative sentences describing forced-choice situation did not have significant differences. Theta synchronization and alpha desynchronization were stronger during recognition of sentences with children's own choice, especially with negative coloring. Also, the quality and execution time of the task were higher for this types of sentences. The results of our study will be useful for improvement of teaching methods and diagnostics of children affective disorders. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=choice%20situation" title="choice situation">choice situation</a>, <a href="https://publications.waset.org/abstracts/search?q=electroencephalogram%20%28EEG%29" title=" electroencephalogram (EEG)"> electroencephalogram (EEG)</a>, <a href="https://publications.waset.org/abstracts/search?q=emotionally%20colored%20sentences" title=" emotionally colored sentences"> emotionally colored sentences</a>, <a href="https://publications.waset.org/abstracts/search?q=schoolchildren" title=" schoolchildren"> schoolchildren</a> </p> <a href="https://publications.waset.org/abstracts/70367/behavioral-and-eeg-reactions-in-children-during-recognition-of-emotionally-colored-sentences-that-describe-the-choice-situation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70367.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">268</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">1097</span> Processing Studies and Challenges Faced in Development of High-Pressure Titanium Alloy Cryogenic Gas Bottles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bhanu%20Pant">Bhanu Pant</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjay%20H.%20Upadhyay"> Sanjay H. Upadhyay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Frequently, the upper stage of high-performance launch vehicles utilizes cryogenic tank-submerged pressurization gas bottles with high volume-to-weight efficiency to achieve a direct gain in the satellite payload. Titanium alloys, owing to their high specific strength coupled with excellent compatibility with various fluids, are the materials of choice for these applications. Amongst the Titanium alloys, there are two alloys suitable for cryogenic applications, namely Ti6Al4V-ELI and Ti5Al2.5Sn-ELI. The two-phase alpha-beta alloy Ti6Al4V-ELI is usable up to LOX temperature of 90K, while the single-phase alpha alloy Ti5Al2.5Sn-ELI can be used down to LHe temperature of 4 K. The high-pressure gas bottles submerged in the LH2 (20K) can store more amount of gas in as compared to those submerged in LOX (90K) bottles the same volume. Thus, the use of these alpha alloy gas bottles stored at 20K gives a distinct advantage with respect to the need for a lesser number of gas bottles to store the same amount of high-pressure gas, which in turn leads to a one-to-one advantage in the payload in the satellite. The cost advantage to the tune of 15000$/ kg of weight is saved in the upper stages, and, thereby, the satellite payload gain is expected by this change. However, the processing of alpha Ti5Al2.5Sn-ELI alloy gas bottles poses challenges due to the lower forgeability of the alloy and mode of qualification for the critical severe application environment. The present paper describes the processing and challenges/ solutions during the development of these advanced gas bottles for LH2 (20K) applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=titanium%20alloys" title="titanium alloys">titanium alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=cryogenic%20gas%20bottles" title=" cryogenic gas bottles"> cryogenic gas bottles</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha%20titanium%20alloy" title=" alpha titanium alloy"> alpha titanium alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha-beta%20titanium%20alloy" title=" alpha-beta titanium alloy"> alpha-beta titanium alloy</a> </p> <a href="https://publications.waset.org/abstracts/185204/processing-studies-and-challenges-faced-in-development-of-high-pressure-titanium-alloy-cryogenic-gas-bottles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185204.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">57</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">1096</span> Chitin Crystalline Phase Transition Promoted by Deep Eutectic Solvent</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Diana%20G.%20Ramirez-Wong">Diana G. Ramirez-Wong</a>, <a href="https://publications.waset.org/abstracts/search?q=Marius%20Ramirez"> Marius Ramirez</a>, <a href="https://publications.waset.org/abstracts/search?q=Regina%20Sanchez-Leija"> Regina Sanchez-Leija</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Rugerio"> Adriana Rugerio</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Araceli%20Mauricio-Sanchez"> R. Araceli Mauricio-Sanchez</a>, <a href="https://publications.waset.org/abstracts/search?q=Martin%20A.%20Hernandez-Landaverde"> Martin A. Hernandez-Landaverde</a>, <a href="https://publications.waset.org/abstracts/search?q=Arturo%20Carranza"> Arturo Carranza</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20A.%20Pojman"> John A. Pojman</a>, <a href="https://publications.waset.org/abstracts/search?q=Josue%20D.%20Mota-Morales"> Josue D. Mota-Morales</a>, <a href="https://publications.waset.org/abstracts/search?q=Gabriel%20Luna-Barcenas"> Gabriel Luna-Barcenas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Chitin films were prepared using alpha-chitin from shrimp shells as raw material and a simple method of precipitation-evaporation. Choline chloride: urea Deep Eutectic Solvent (DES) was used to disperse chitin and compared against hexafluoroisopropanol (HFIP). A careful analysis of the chemical and crystalline structure was followed along the synthesis of the films, revealing crystalline-phase transitions. The full conversion of alpha- to beta-, or alpha- to gamma-chitin structure were detected by XRD and NMR on the films. The synthesis of highly crystalline monophasic gamma-chitin films was achieved using a DES; whereas HFIP helps to promote the beta-phase. These results are encouraging to continue in the study of DES as good processing media to control the final properties of chitin based materials. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chitin" title="chitin">chitin</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20eutectic%20solvent" title=" deep eutectic solvent"> deep eutectic solvent</a>, <a href="https://publications.waset.org/abstracts/search?q=polymorph" title=" polymorph"> polymorph</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20transformation" title=" phase transformation"> phase transformation</a> </p> <a href="https://publications.waset.org/abstracts/48813/chitin-crystalline-phase-transition-promoted-by-deep-eutectic-solvent" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48813.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">538</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">1095</span> Modeling of Compaction Curves for CCA-Cement Stabilized Lateritic Soils</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=O.%20Ahmed%20Apampa">O. Ahmed Apampa</a>, <a href="https://publications.waset.org/abstracts/search?q=Yinusa"> Yinusa</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Jimoh"> A. Jimoh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study was to develop an appropriate model for predicting the compaction behavior of lateritic soils and corn cob ash (CCA) stabilized lateritic soils. This was done by first adopting an equation earlier developed for fine-grained soils and subsequent adaptation by others and extending it to modified lateritic soil through the introduction of alpha and beta parameters which are polynomial functions of the CCA binder input. The polynomial equations were determined with MATLAB R2011 curve fitting tool, while the alpha and beta parameters were determined by standard linear programming techniques using the Solver function of Microsoft Excel 2010. The model so developed was a good fit with a correlation coefficient R2 value of 0.86. The paper concludes that it is possible to determine the optimum moisture content and the maximum dry density of CCA stabilized soils from the compaction test of the unmodified soil, and recommends that this procedure is extended to other binder stabilized lateritic soils to facilitate quick decision making in roadworks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=compaction" title="compaction">compaction</a>, <a href="https://publications.waset.org/abstracts/search?q=corn%20cob%20ash" title=" corn cob ash"> corn cob ash</a>, <a href="https://publications.waset.org/abstracts/search?q=lateritic%20soil" title=" lateritic soil"> lateritic soil</a>, <a href="https://publications.waset.org/abstracts/search?q=stabilization" title=" stabilization"> stabilization</a> </p> <a href="https://publications.waset.org/abstracts/22360/modeling-of-compaction-curves-for-cca-cement-stabilized-lateritic-soils" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22360.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">533</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">1094</span> Effects of Ophiocordyceps dipterigena BCC 2073 β-Glucan as a Prebiotic on the in vitro Growth of Probiotic and Pathogenic Bacteria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wai%20Prathumpai">Wai Prathumpai</a>, <a href="https://publications.waset.org/abstracts/search?q=Pranee%20Rachtawee"> Pranee Rachtawee</a>, <a href="https://publications.waset.org/abstracts/search?q=Sutamat%20Khajeeram"> Sutamat Khajeeram</a>, <a href="https://publications.waset.org/abstracts/search?q=Pariya%20Na%20Nakorn"> Pariya Na Nakorn</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The  β-glucan produced by <em>Ophiocordyceps dipterigena</em> BCC 2073 is a (1, 3)-β-D-glucan with highly branching O-6-linkedside chains that is resistant to acid hydrolysis (by hydrochloric acid and porcine pancreatic alpha-amylase). This β-glucan can be utilized as a prebiotic due to its advantageous structural and biological properties. The effects of using this β-glucan as the sole carbon source for the <em>in vitro</em> growth of two probiotic bacteria (<em>L. acidophilus</em> BCC 13938 and <em>B. animalis</em> ATCC 25527) were investigated. Compared with the effect of using 1% glucose or fructo-oligosaccharide (FOS) as the sole carbon source, using 1% β-glucan for this purpose showed that this prebiotic supported and stimulated the growth of both types of probiotic bacteria and induced them to produce the highest levels of metabolites during their growth. The highest levels of lactic and acetic acid, 10.04 g·L<sup>-1</sup> and 2.82 g·L<sup>-1</sup>, respectively, were observed at 2 h of cultivation using glucose as the sole carbon source. Furthermore, the fermentation broth obtained using 1% β-glucan as the sole carbon source had greater antibacterial activity against selected pathogenic bacteria (<em>B. subtilis </em>TISTR 008, <em>E. coli </em>TISTR 780, and <em>S. typhimurium</em> TISTR 292) than did the broths prepared using glucose or FOS as the sole carbon source. The fermentation broth obtained by growing <em>L. acidophilus</em> BCC 13938 in the presence of β-glucan inhibited the growth of <em>B. subtilis </em>TISTR 008 by more than 70% and inhibited the growth of both <em>S. typhimurium</em> TISTR 292 and <em>E. coli </em>TISTR 780 by more than 90%. In conclusion, <em>O. dipterigena</em> BCC 2073 is a potential source of a β-glucan prebiotic that could be used for commercial production in the near future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beta-glucan" title="beta-glucan">beta-glucan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ophiocordyceps%20dipterigena" title=" Ophiocordyceps dipterigena"> Ophiocordyceps dipterigena</a>, <a href="https://publications.waset.org/abstracts/search?q=prebiotic" title=" prebiotic"> prebiotic</a>, <a href="https://publications.waset.org/abstracts/search?q=probiotic" title=" probiotic"> probiotic</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial" title=" antimicrobial"> antimicrobial</a> </p> <a href="https://publications.waset.org/abstracts/93585/effects-of-ophiocordyceps-dipterigena-bcc-2073-v-glucan-as-a-prebiotic-on-the-in-vitro-growth-of-probiotic-and-pathogenic-bacteria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93585.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">151</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">1093</span> Host Responses in Peri-Implant Tissue in Comparison to Periodontal Tissue</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raviporn%20Madarasmi">Raviporn Madarasmi</a>, <a href="https://publications.waset.org/abstracts/search?q=Anjalee%20Vacharaksa"> Anjalee Vacharaksa</a>, <a href="https://publications.waset.org/abstracts/search?q=Pravej%20Serichetaphongse"> Pravej Serichetaphongse</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The host response in peri-implant tissue may differ from that in periodontal tissue in a healthy individual. The purpose of this study is to investigate the expression of inflammatory cytokines in peri-implant crevicular fluid (PICF) from single implant with different abutment types in comparison to healthy periodontal tissue. 19 participants with healthy implants and teeth were recruited according to inclusion and exclusion criteria. PICF and gingival crevicular fluid (GCF) was collected using sterile paper points. The expression level of inflammatory cytokines including IL-1α, IL-1β, TNF-α, IFN-γ, IL-6, and IL-8 was assessed using enzyme-linked immunosorbent assay (ELISA). Paired t test was used to compare the expression levels of inflammatory cytokines around natural teeth and peri-implant in PICF and GCF of the same individual. The Independent t-test was used to compare the expression levels of inflammatory cytokines in PICF from titanium and UCLA abutment. Expression of IL-6, TNF-α, and IFN-γ in PICF was not statistically different from GCF among titanium and UCLA abutment group. However, the level of IL-1α in the PICF from the implants with UCLA abutment was significantly higher than GCF (P=0.030). In addition, the level of IL-1β in PICF from the implants with titanium abutment was significantly higher than GCF (P=0.032). When different abutment types was compared, IL-8 expression in PICF from implants with UCLA abutment was significantly higher than titanium abutment (P=0.003). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=abutment" title="abutment">abutment</a>, <a href="https://publications.waset.org/abstracts/search?q=dental%20implant" title=" dental implant"> dental implant</a>, <a href="https://publications.waset.org/abstracts/search?q=gingival%20crevicular%20fluid%20and%20peri-implant%20crevicular%20fluid" title=" gingival crevicular fluid and peri-implant crevicular fluid"> gingival crevicular fluid and peri-implant crevicular fluid</a> </p> <a href="https://publications.waset.org/abstracts/75686/host-responses-in-peri-implant-tissue-in-comparison-to-periodontal-tissue" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75686.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">184</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">1092</span> Wet Polymeric Precipitation Synthesis for Monophasic Tricalcium Phosphate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I.%20Grigoraviciute-Puroniene">I. Grigoraviciute-Puroniene</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Tsuru"> K. Tsuru</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Garskaite"> E. Garskaite</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Stankeviciute"> Z. Stankeviciute</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Beganskiene"> A. Beganskiene</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Ishikawa"> K. Ishikawa</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Kareiva"> A. Kareiva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Tricalcium phosphate (β-Ca<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>, β-TCP) powders were synthesized using wet polymeric precipitation method for the first time to our best knowledge. The results of X-ray diffraction analysis showed the formation of almost single a Ca-deficient hydroxyapatite (CDHA) phase of a poor crystallinity already at room temperature. With continuously increasing the calcination temperature up to 800 °C, the crystalline β-TCP was obtained as the main phase. It was demonstrated that infrared spectroscopy is very effective method to characterize the formation of β-TCP. The SEM results showed that β-TCP solids were homogeneous having a small particle size distribution. The β-TCP powders consisted of spherical particles varying in size from 100 to 300 nm. Fabricated β-TCP specimens were placed to the bones of the rats and maintained for 1-2 months. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tricalcium%20phosphate%20%28%CE%B2-Ca3%28PO4%292" title="Tricalcium phosphate (β-Ca3(PO4)2">Tricalcium phosphate (β-Ca3(PO4)2</a>, <a href="https://publications.waset.org/abstracts/search?q=bone%20regeneration" title=" bone regeneration"> bone regeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=wet%20chemical%20processing" title=" wet chemical processing"> wet chemical processing</a>, <a href="https://publications.waset.org/abstracts/search?q=polymeric%20precipitation" title=" polymeric precipitation"> polymeric precipitation</a> </p> <a href="https://publications.waset.org/abstracts/69402/wet-polymeric-precipitation-synthesis-for-monophasic-tricalcium-phosphate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69402.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">298</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">1091</span> Electroencephalography Activity during Sensory Organization Balance Test </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tariq%20Ali%20Gujar">Tariq Ali Gujar</a>, <a href="https://publications.waset.org/abstracts/search?q=Anita%20H%C3%B6kelmann"> Anita Hökelmann</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Postural balance plays essential role throughout life in daily activities. Somatosensory, visual and vestibular inputs play the fundamental role in maintaining body equilibrium to balance the posture. The aim of this study was to find out electroencephalography (EEG) responses during balance activity of young people during Sensory Organization Balance Test. The outcome of this study will help to create the fitness and neurorehabilitation plan. 25 young people (25 ± 3.1 years) have been analyzed on Balance Master NeuroCom® with the coupling of Brain Vision 32 electrode wireless EEG system during the Sensory Organization Test. From the results it has been found that the balance score of samples is significantly higher under the influence of somatosensory input as compared to visual and vestibular input (p < 0.05). The EEG between somatosensory and visual input to balance the posture showed significantly higher (p < 0.05) alpha and beta activities during somatosensory input in somatosensory, attention and visual functions of the cortex whereas executive and motor functions of the cerebral cortex showed significantly higher (p < 0.05) alpha EEG activity during the visual input. The results suggest that somatosensory and attention function of the cerebral cortex has alpha and beta activity, respectively high during somatosensory and vestibular input in maintaining balance. In patients with balance impairments both physical and cognitive training, including neurofeedback will be helpful to improve balance abilities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=balance" title="balance">balance</a>, <a href="https://publications.waset.org/abstracts/search?q=electroencephalography%20activity" title=" electroencephalography activity"> electroencephalography activity</a>, <a href="https://publications.waset.org/abstracts/search?q=somatosensory" title=" somatosensory"> somatosensory</a>, <a href="https://publications.waset.org/abstracts/search?q=visual" title=" visual"> visual</a>, <a href="https://publications.waset.org/abstracts/search?q=vestibular" title=" vestibular"> vestibular</a> </p> <a href="https://publications.waset.org/abstracts/21598/electroencephalography-activity-during-sensory-organization-balance-test" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21598.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">582</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">1090</span> Synergistic Effect of Eugenol Acetate with Betalactam Antibiotic on Betalactamase and Its Bioinformatics Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vinod%20Nair">Vinod Nair</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Sadasivan"> C. Sadasivan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Beta-lactam antibiotics are the most frequently prescribed medications in modern medicine. The antibiotic resistance by the production of enzyme beta-lactamase is an important mechanism seen in microorganisms. Resistance to beta-lactams mediated by beta-lactamases can be overcome successfully with the use of beta-lactamase inhibitors. New generations of the antibiotics contain mostly synthetic compounds, and many side effects have been reported for them. Combinations of beta-lactam and beta-lactamase inhibitors have become one of the most successful antimicrobial strategies in the current scenario of bacterial infections. Plant-based drugs are very cheap and having lesser adverse effect than synthetic compounds. The synergistic effect of eugenol acetate with beta-lactams restores the activity of beta-lactams, allowing their continued clinical use. It is reported here the enhanced inhibitory effect of phytochemical, eugenol acetate, isolated from the plant Syzygium aromaticum with beta-lactams on beta-lactamase. The compound was found to have synergistic effect with the antibiotic amoxicillin against antibiotic-resistant strain of S.aureus. The enzyme was purified from the organism and incubated with the compound. The assay showed that the compound could inhibit the enzymatic activity of beta-lactamase. Modeling and molecular docking studies indicated that the compound can fit into the active site of beta-lactamase and can mask the important residue for hydrolysis of beta-lactams. The synergistic effects of eugenol acetate with beta-lactam antibiotics may justify, the use of these plant compounds for the preparation of β-lactamase inhibitors against β-lactam resistant S.aureus. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=betalactamase" title="betalactamase">betalactamase</a>, <a href="https://publications.waset.org/abstracts/search?q=eugenol%20acetate" title=" eugenol acetate"> eugenol acetate</a>, <a href="https://publications.waset.org/abstracts/search?q=synergistic%20effect" title=" synergistic effect"> synergistic effect</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20modeling" title=" molecular modeling"> molecular modeling</a> </p> <a href="https://publications.waset.org/abstracts/59242/synergistic-effect-of-eugenol-acetate-with-betalactam-antibiotic-on-betalactamase-and-its-bioinformatics-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59242.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">249</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">1089</span> β-Lactamase Inhibitory Effects of Anchusa azurea Extracts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naoual%20Boussoualim">Naoual Boussoualim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hayat%20Trabsa"> Hayat Trabsa</a>, <a href="https://publications.waset.org/abstracts/search?q=Iman%20Krache"> Iman Krache</a>, <a href="https://publications.waset.org/abstracts/search?q=Lekhmici%20Arrar"> Lekhmici Arrar</a>, <a href="https://publications.waset.org/abstracts/search?q=Abderrahmane%20Baghiani"> Abderrahmane Baghiani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Resistance to antibiotics has emerged following their widespread use; the important mechanism of beta-lactam resistance in bacteria is the production of beta-lactamase. In order to find new bioactive beta-lactamase inhibitors, this study investigated the inhibition effect of the extracts of Anchusa azurea (AA) on a beta-lactamase from Bacillus cereus. The extracts exerted inhibitory effects on beta-lactamase in a dose-dependent manner, the results showed that the crude extract (BrE) and the ethyl acetate extract (AcE) of Anchusa azurea showed a very high inhibitory activity at a concentration of 10 mg, the percentage of inhibition was between 58% and 68%. Not all extracts were as potent as the original inhibitors such as clavulanic acid, the isolation and the structural elucidation of the active constituents in these extracts will provide useful means in the development of beta -lactamase inhibitors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anchusa%20azurea" title="Anchusa azurea">Anchusa azurea</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20product" title=" natural product"> natural product</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance" title=" resistance"> resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=antibiotics" title=" antibiotics"> antibiotics</a>, <a href="https://publications.waset.org/abstracts/search?q=beta-lactamase" title=" beta-lactamase"> beta-lactamase</a>, <a href="https://publications.waset.org/abstracts/search?q=inhibitors" title=" inhibitors"> inhibitors</a> </p> <a href="https://publications.waset.org/abstracts/41796/v-lactamase-inhibitory-effects-of-anchusa-azurea-extracts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41796.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">511</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">1088</span> Assessment of the Radiation Absorbed Dose Produced by Lu-177, Ra-223, AC-225 for Metastatic Prostate Cancer in a Bone Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Tajadod">Maryam Tajadod</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The treatment of cancer is one of the main challenges of nuclear medicine; while cancer begins in an organ, such as the breast or prostate, it spreads to the bone, resulting in metastatic bone. In the treatment of cancer with radiotherapy, the determination of the involved tissues’ dose is one of the important steps in the treatment protocol. Comparing absorbed doses for Lu-177 and Ra-223 and Ac-225 in the bone marrow and soft tissue of bone phantom with evaluating energetic emitted particles of these radionuclides is the important aim of this research. By the use of MCNPX computer code, a model for bone phantom was designed and the values of absorbed dose for Ra-223 and Ac-225, which are Alpha emitters & Lu-177, which is a beta emitter, were calculated. As a result of research, in comparing gamma radiation for three radionuclides, Lu-177 released the highest dose in the bone marrow and Ra-223 achieved the lowest level. On the other hand, the result showed that although the figures of absorbed dose for Ra and Ac in the bone marrow are near to each other, Ra spread more energy in cortical bone. Moreover, The alpha component of the Ra-223 and Ac-225 have very little effect on bone marrow and soft tissue than a beta component of the lu-177 and it leaves the highest absorbed dose in the bone where the source is located. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bone%20metastases" title="bone metastases">bone metastases</a>, <a href="https://publications.waset.org/abstracts/search?q=lutetium-177" title=" lutetium-177"> lutetium-177</a>, <a href="https://publications.waset.org/abstracts/search?q=radium-223" title=" radium-223"> radium-223</a>, <a href="https://publications.waset.org/abstracts/search?q=actinium-225" title=" actinium-225"> actinium-225</a>, <a href="https://publications.waset.org/abstracts/search?q=absorbed%20dose" title=" absorbed dose"> absorbed dose</a> </p> <a href="https://publications.waset.org/abstracts/149268/assessment-of-the-radiation-absorbed-dose-produced-by-lu-177-ra-223-ac-225-for-metastatic-prostate-cancer-in-a-bone-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149268.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">112</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">1087</span> Exploring Neural Responses to Urban Spaces in Older People Using Mobile EEG</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chris%20Neale">Chris Neale</a>, <a href="https://publications.waset.org/abstracts/search?q=Jenny%20Roe"> Jenny Roe</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Aspinall"> Peter Aspinall</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Tilley"> Sara Tilley</a>, <a href="https://publications.waset.org/abstracts/search?q=Steve%20Cinderby"> Steve Cinderby</a>, <a href="https://publications.waset.org/abstracts/search?q=Panos%20Mavros"> Panos Mavros</a>, <a href="https://publications.waset.org/abstracts/search?q=Richard%20Coyne"> Richard Coyne</a>, <a href="https://publications.waset.org/abstracts/search?q=Neil%20Thin"> Neil Thin</a>, <a href="https://publications.waset.org/abstracts/search?q=Catharine%20Ward%20Thompson"> Catharine Ward Thompson</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research directly assesses older people’s neural activation in response to walking through a changing urban environment, as measured by electroencephalography (EEG). As the global urban population is predicted to grow, there is a need to understand the role that the urban environment may play on the health of its older inhabitants. There is a large body of evidence suggesting green space has a beneficial restorative effect, but this effect remains largely understudied in both older people and by using a neuroimaging assessment. For this study, participants aged 65 years and over were required to walk between a busy urban built environment and a green urban environment, in a counterbalanced design, wearing an Emotiv EEG headset to record real-time neural responses to place. Here we report on the outputs for these responses derived from both the proprietary Affectiv Suite software, which creates emotional parameters with a real time value assigned to them, as well as the raw EEG output focusing on alpha and beta changes, associated with changes in relaxation and attention respectively. Each walk lasted around fifteen minutes and was undertaken at the natural walking pace of the participant. The two walking environments were compared using a form of high dimensional correlated component regression (CCR) on difference data between the urban busy and urban green spaces. For the Emotiv parameters, results showed that levels of ‘engagement’ increased in the urban green space (with a subsequent decrease in the urban busy built space) whereas levels of ‘excitement’ increased in the urban busy environment (with a subsequent decrease in the urban green space). In the raw data, low beta (13 – 19 Hz) increased in the urban busy space with a subsequent decrease shown in the green space, similar to the pattern shown with the ‘excitement’ result. Alpha activity (9 – 13 Hz) shows a correlation with low beta, but not with dependent change in the regression model. This suggests that alpha is acting as a suppressor variable. These results suggest that there are neural signatures associated with the experience of urban spaces which may reflect the age of the cohort or the spatiality of the settings themselves. These are shown both in the outputs of the proprietary software as well as the raw EEG output. Built busy urban spaces appear to induce neural activity associated with vigilance and low level stress, while this effect is ameliorated in the urban green space, potentially suggesting a beneficial effect on attentional capacity in urban green space in this participant group. The interaction between low beta and alpha requires further investigation, in particular the role of alpha in this relationship. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ageing" title="ageing">ageing</a>, <a href="https://publications.waset.org/abstracts/search?q=EEG" title=" EEG"> EEG</a>, <a href="https://publications.waset.org/abstracts/search?q=green%20space" title=" green space"> green space</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20space" title=" urban space"> urban space</a> </p> <a href="https://publications.waset.org/abstracts/55659/exploring-neural-responses-to-urban-spaces-in-older-people-using-mobile-eeg" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55659.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">224</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">1086</span> EEG Correlates of Trait and Mathematical Anxiety during Lexical and Numerical Error-Recognition Tasks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexander%20N.%20Savostyanov">Alexander N. Savostyanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Tatiana%20A.%20Dolgorukova"> Tatiana A. Dolgorukova</a>, <a href="https://publications.waset.org/abstracts/search?q=Elena%20A.%20Esipenko"> Elena A. Esipenko</a>, <a href="https://publications.waset.org/abstracts/search?q=Mikhail%20S.%20Zaleshin"> Mikhail S. Zaleshin</a>, <a href="https://publications.waset.org/abstracts/search?q=Margherita%20Malanchini"> Margherita Malanchini</a>, <a href="https://publications.waset.org/abstracts/search?q=Anna%20V.%20Budakova"> Anna V. Budakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20E.%20Saprygin"> Alexander E. Saprygin</a>, <a href="https://publications.waset.org/abstracts/search?q=Tatiana%20A.%20Golovko"> Tatiana A. Golovko</a>, <a href="https://publications.waset.org/abstracts/search?q=Yulia%20V.%20Kovas"> Yulia V. Kovas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> EEG correlates of mathematical and trait anxiety level were studied in 52 healthy Russian-speakers during execution of error-recognition tasks with lexical, arithmetic and algebraic conditions. Event-related spectral perturbations were used as a measure of brain activity. The ERSP plots revealed alpha/beta desynchronizations within a 500-3000 ms interval after task onset and slow-wave synchronization within an interval of 150-350 ms. Amplitudes of these intervals reflected the accuracy of error recognition, and were differently associated with the three conditions. The correlates of anxiety were found in theta (4-8 Hz) and beta2 (16-20 Hz) frequency bands. In theta band the effects of mathematical anxiety were stronger expressed in lexical, than in arithmetic and algebraic condition. The mathematical anxiety effects in theta band were associated with differences between anterior and posterior cortical areas, whereas the effects of trait anxiety were associated with inter-hemispherical differences. In beta1 and beta2 bands effects of trait and mathematical anxiety were directed oppositely. The trait anxiety was associated with increase of amplitude of desynchronization, whereas the mathematical anxiety was associated with decrease of this amplitude. The effect of mathematical anxiety in beta2 band was insignificant for lexical condition but was the strongest in algebraic condition. EEG correlates of anxiety in theta band could be interpreted as indexes of task emotionality, whereas the reaction in beta2 band is related to tension of intellectual resources. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EEG" title="EEG">EEG</a>, <a href="https://publications.waset.org/abstracts/search?q=brain%20activity" title=" brain activity"> brain activity</a>, <a href="https://publications.waset.org/abstracts/search?q=lexical%20and%20numerical%20error-recognition%20tasks" title=" lexical and numerical error-recognition tasks"> lexical and numerical error-recognition tasks</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematical%20and%20trait%20anxiety" title=" mathematical and trait anxiety"> mathematical and trait anxiety</a> </p> <a href="https://publications.waset.org/abstracts/29302/eeg-correlates-of-trait-and-mathematical-anxiety-during-lexical-and-numerical-error-recognition-tasks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29302.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">561</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">1085</span> Estimation of Hydrogen Production from PWR Spent Fuel Due to Alpha Radiolysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sivakumar%20Kottapalli">Sivakumar Kottapalli</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdesselam%20Abdelouas"> Abdesselam Abdelouas</a>, <a href="https://publications.waset.org/abstracts/search?q=Christoph%20Hartnack"> Christoph Hartnack</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Spent nuclear fuel generates a mixed field of ionizing radiation to the water. This radiation field is generally dominated by gamma rays and a limited flux of fast neutrons. The fuel cladding effectively attenuates beta and alpha particle radiation. Small fraction of the spent nuclear fuel exhibits some degree of fuel cladding penetration due to pitting corrosion and mechanical failure. Breaches in the fuel cladding allow the exposure of small volumes of water in the cask to alpha and beta ionizing radiation. The safety of the transport of radioactive material is assured by the package complying with the IAEA Requirements for the Safe Transport of Radioactive Material SSR-6. It is of high interest to avoid generation of hydrogen inside the cavity which may to an explosive mixture. The risk of hydrogen production along with other radiation gases should be analyzed for a typical spent fuel for safety issues. This work aims to perform a realistic study of the production of hydrogen by radiolysis assuming most penalizing initial conditions. It consists in the calculation of the radionuclide inventory of a pellet taking into account the burn up and decays. Westinghouse 17X17 PWR fuel has been chosen and data has been analyzed for different sets of enrichment, burnup, cycles of irradiation and storage conditions. The inventory is calculated as the entry point for the simulation studies of hydrogen production by radiolysis kinetic models by MAKSIMA-CHEMIST. Dose rates decrease strongly within ~45 μm from the fuel surface towards the solution(water) in case of alpha radiation, while the dose rate decrease is lower in case of beta and even slower in case of gamma radiation. Calculations are carried out to obtain spectra as a function of time. Radiation dose rate profiles are taken as the input data for the iterative calculations. Hydrogen yield has been found to be around 0.02 mol/L. Calculations have been performed for a realistic scenario considering a capsule containing the spent fuel rod. Thus, hydrogen yield has been debated. Experiments are under progress to validate the hydrogen production rate using cyclotron at > 5MeV (at ARRONAX, Nantes). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=radiolysis" title="radiolysis">radiolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=spent%20fuel" title=" spent fuel"> spent fuel</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrogen" title=" hydrogen"> hydrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclotron" title=" cyclotron"> cyclotron</a> </p> <a href="https://publications.waset.org/abstracts/34769/estimation-of-hydrogen-production-from-pwr-spent-fuel-due-to-alpha-radiolysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34769.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">521</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">1084</span> Use of Beta Blockers in Patients with Reactive Airway Disease and Concomitant Hypertension or Ischemic Heart Disease </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bharti%20Chogtu%20Magazine">Bharti Chogtu Magazine</a>, <a href="https://publications.waset.org/abstracts/search?q=Dhanya%20Soodana%20Mohan"> Dhanya Soodana Mohan</a>, <a href="https://publications.waset.org/abstracts/search?q=Shruti%20Nair"> Shruti Nair</a>, <a href="https://publications.waset.org/abstracts/search?q=Tanwi%20Trushna"> Tanwi Trushna</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study was undertaken to analyse the cardiovascular drugs being prescribed in patients with concomitant reactive airway disease and hypertension or ischemic heart diseases (IHD). Also, the effect of beta-blockers on respiratory symptoms in these patients was recorded. Data was collected from medical records of patients with reactive airway disease and concomitant hypertension and IHD. It included demographic details of the patients, diagnosis, drugs prescribed and the patient outcome regarding the exacerbation of asthma symptoms with intake of beta blockers. Medical records of 250 patients were analysed.13% of patients were prescribed beta-blockers. 12% of hypertensive patients, 16.6% of IHD patients and 20% of patients with concomitant hypertension and IHD were prescribed beta blockers. Of the 33 (13%) patients who were on beta-blockers, only 3 patients had an exacerbation of bronchial asthma symptoms. Cardioselective beta-blockers under supervision appear to be safe in patients with reactive airway disease and concomitant hypertension and IHD. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beta%20blockers" title="beta blockers">beta blockers</a>, <a href="https://publications.waset.org/abstracts/search?q=hypertension" title=" hypertension"> hypertension</a>, <a href="https://publications.waset.org/abstracts/search?q=ischemic%20heart%20disease" title=" ischemic heart disease"> ischemic heart disease</a>, <a href="https://publications.waset.org/abstracts/search?q=asthma" title=" asthma"> asthma</a> </p> <a href="https://publications.waset.org/abstracts/1343/use-of-beta-blockers-in-patients-with-reactive-airway-disease-and-concomitant-hypertension-or-ischemic-heart-disease" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1343.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">445</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">1083</span> An Analysis of the Temporal Aspects of Visual Attention Processing Using Rapid Series Visual Processing (RSVP) Data</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shreya%20Borthakur">Shreya Borthakur</a>, <a href="https://publications.waset.org/abstracts/search?q=Aastha%20Vartak"> Aastha Vartak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This Electroencephalogram (EEG) project on Rapid Visual Serial Processing (RSVP) paradigm explores the temporal dynamics of visual attention processing in response to rapidly presented visual stimuli. The study builds upon previous research that used real-world images in RSVP tasks to understand the emergence of object representations in the human brain. The objectives of the research include investigating the differences in accuracy and reaction times between 5 Hz and 20 Hz presentation rates, as well as examining the prominent brain waves, particularly alpha and beta waves, associated with the attention task. The pre-processing and data analysis involves filtering EEG data, creating epochs for target stimuli, and conducting statistical tests using MATLAB, EEGLAB, Chronux toolboxes, and R. The results support the hypotheses, revealing higher accuracy at a slower presentation rate, faster reaction times for less complex targets, and the involvement of alpha and beta waves in attention and cognitive processing. This research sheds light on how short-term memory and cognitive control affect visual processing and could have practical implications in fields like education. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RSVP" title="RSVP">RSVP</a>, <a href="https://publications.waset.org/abstracts/search?q=attention" title=" attention"> attention</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20processing" title=" visual processing"> visual processing</a>, <a href="https://publications.waset.org/abstracts/search?q=attentional%20blink" title=" attentional blink"> attentional blink</a>, <a href="https://publications.waset.org/abstracts/search?q=EEG" title=" EEG"> EEG</a> </p> <a href="https://publications.waset.org/abstracts/169655/an-analysis-of-the-temporal-aspects-of-visual-attention-processing-using-rapid-series-visual-processing-rsvp-data" class="btn btn-primary btn-sm">Procedia</a> <a 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