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lungs</title> <meta name="description" content="Search results for: human lungs"> <meta name="keywords" content="human lungs"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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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="human lungs"> <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> 8455</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: human lungs</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8455</span> Estimation of Respiratory Parameters in Pressure Controlled Ventilation System with Double Lungs on Secretion Clearance </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Qian%20Zhang">Qian Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Dongkai%20Shen"> Dongkai Shen</a>, <a href="https://publications.waset.org/abstracts/search?q=Yan%20Shi"> Yan Shi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A new mechanical ventilator with automatic secretion clearance function can improve the secretion clearance safely and efficiently. However, in recent modeling studies on various mechanical ventilators, it was considered that human had one lung, and the coupling effect of double lungs was never illustrated. In this paper, to expound the coupling effect of double lungs, a mathematical model of a ventilation system of a bi-level positive airway pressure (BiPAP) controlled ventilator with secretion clearance was set up. Moreover, an experimental study about the mechanical ventilation system of double lungs on BiPAP ventilator was conducted to verify the mathematical model. Finally, the coupling effect of double lungs of the mathematical ventilation was studied by simulation and orthogonal experimental design. This paper adds to previous studies and can be referred to optimization methods in medical researches. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=double%20lungs" title="double lungs">double lungs</a>, <a href="https://publications.waset.org/abstracts/search?q=coupling%20effect" title=" coupling effect"> coupling effect</a>, <a href="https://publications.waset.org/abstracts/search?q=secretion%20clearance" title=" secretion clearance"> secretion clearance</a>, <a href="https://publications.waset.org/abstracts/search?q=orthogonal%20experimental%20design" title=" orthogonal experimental design"> orthogonal experimental design</a> </p> <a href="https://publications.waset.org/abstracts/67166/estimation-of-respiratory-parameters-in-pressure-controlled-ventilation-system-with-double-lungs-on-secretion-clearance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67166.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">606</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">8454</span> The Pressure Losses in the Model of Human Lungs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Michaela%20Chovancova">Michaela Chovancova</a>, <a href="https://publications.waset.org/abstracts/search?q=Pavel%20Niedoba"> Pavel Niedoba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For the treatment of acute and chronic lung diseases it is preferred to deliver medicaments by inhalation. The drug is delivered directly to tracheobronchial tree. This way allows the given medicament to get directly into the place of action and it makes rapid onset of action and maximum efficiency. The transport of aerosol particles in the particular part of the lung is influenced by their size, anatomy of the lungs, breathing pattern and airway resistance. This article deals with calculation of airway resistance in the lung model of Horsfield. It solves the problem of determination of the pressure losses in bifurcation and thus defines the pressure drop at a given location in the bronchial tree. The obtained data will be used as boundary conditions for transport of aerosol particles in a central part of bronchial tree realized by Computational Fluid Dynamics (CFD) approach. The results obtained from CFD simulation will allow us to provide information on the required particle size and optimal inhalation technique for particle transport into particular part of the lung. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20lungs" title="human lungs">human lungs</a>, <a href="https://publications.waset.org/abstracts/search?q=bronchial%20tree" title=" bronchial tree"> bronchial tree</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure%20losses" title=" pressure losses"> pressure losses</a>, <a href="https://publications.waset.org/abstracts/search?q=airways%20resistance" title=" airways resistance"> airways resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=flow" title=" flow"> flow</a>, <a href="https://publications.waset.org/abstracts/search?q=breathing" title=" breathing "> breathing </a> </p> <a href="https://publications.waset.org/abstracts/19141/the-pressure-losses-in-the-model-of-human-lungs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19141.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">356</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">8453</span> The Effects of Red Onion Extract (Allium ascalonicum L.) in the Pulmonary Histopathological Lesions of Layer Chickens at 47 Days Old Raised in the Battery Cage</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20N.%20Nataria">R. N. Nataria</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20D.%20Paryuni"> A. D. Paryuni</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Wasito"> R. Wasito</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Layer farms in Indonesia have still obstacles to increasing their productivity, especially due to poultry diseases. The red onion (Allium ascalonicum L.) is a plant that contains flavonoid and saponin. Flavonoid is useful as anti-inflammatory and antioxidant while saponin is useful as antivirus, anti-inflammatory, antifungal, and immunomodulator. This study aimed to know and determine the effect of onion extracts to pulmonary histopathological lesions in layer chickens which raised in the battery cage. This study used eighteen layer chickens at seventeen days old. The eighteen layer chickens were divided into three groups of six each, namely without administration of red onion extract (Group I), with administration red onion extract through drinking water (Group II) and with administration red onion extract peroral (Group III). Every ten days, six chickens were necropsied and then the lungs were processed for histopathological preparations and stained with routine hematoxylin and eosin. The results showed that the lungs of the Group I had severe congestion and diffuse hemorrhages. In Group II, lungs had moderate congestion and hemorrhages. In group III, lungs had mild congestion and hemorrhages. It is concluded, that red onion extract apparently has reduced the lungs lesions in layer chickens. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=histopathological%20lesions" title="histopathological lesions">histopathological lesions</a>, <a href="https://publications.waset.org/abstracts/search?q=layers" title=" layers"> layers</a>, <a href="https://publications.waset.org/abstracts/search?q=lungs" title=" lungs"> lungs</a>, <a href="https://publications.waset.org/abstracts/search?q=poultry%20diseases" title=" poultry diseases"> poultry diseases</a>, <a href="https://publications.waset.org/abstracts/search?q=red%20onion%20extract" title=" red onion extract"> red onion extract</a> </p> <a href="https://publications.waset.org/abstracts/50327/the-effects-of-red-onion-extract-allium-ascalonicum-l-in-the-pulmonary-histopathological-lesions-of-layer-chickens-at-47-days-old-raised-in-the-battery-cage" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50327.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">448</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">8452</span> Pathomorphological Features of Lungs from Brown Hares Infected with Parasites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mariana%20Panayotova-Pencheva">Mariana Panayotova-Pencheva</a>, <a href="https://publications.waset.org/abstracts/search?q=Anetka%20Trifonova"> Anetka Trifonova</a>, <a href="https://publications.waset.org/abstracts/search?q=Vassilena%20Dakova"> Vassilena Dakova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 790 lungs from brown hares (<em>Lepus europeus </em>L.) from different regions of Bulgaria were investigated during the period 2009-2017. The parasitological status and pathomorphological features in the lungs were recorded. The following parasite species were established: one nematode - <em>Protostrongylus tauricus</em> (7.59% prevalence), one tapeworm – larva of <em>Taenia pisiformis </em>– <em>Cysticercus pisiformis</em> (3.04% prevalence) and one arthropod – larva of <em>Linguatula serrata – Pentastomum dentatum</em> (0.89% prevalence)<em>.</em> Macroscopic lesions in the lungs were different depending on the causative agents. The infections with<em> C. pisiformis </em>and <em>P. dentatum</em> were attended with small, mainly superficial changes in the lungs. Protostrongylid infections were connected with different in appearance and burden macroscopic changes. In 77.7%, they were nodular, and in the rest of cases, they diffuse. The consistency of the lesions was compact. In most of the cases, alterations were grey in colour, rarely were dark-red or marble-like. In 91.7% of these cases, they were spread on the apical parts of large lung lobes. In 36.7% middle parts of the large lung lobes, and, in 26.7% small lung lobes, were also affected. The small lung lobes were never independently infected. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cysticercus%20pisiformis" title="Cysticercus pisiformis">Cysticercus pisiformis</a>, <a href="https://publications.waset.org/abstracts/search?q=Lepus%20europeus" title=" Lepus europeus"> Lepus europeus</a>, <a href="https://publications.waset.org/abstracts/search?q=lung%20lesions" title=" lung lesions"> lung lesions</a>, <a href="https://publications.waset.org/abstracts/search?q=Pentastomum%20dentatum" title=" Pentastomum dentatum"> Pentastomum dentatum</a>, <a href="https://publications.waset.org/abstracts/search?q=Protostrongylus%20tauricus" title=" Protostrongylus tauricus"> Protostrongylus tauricus</a> </p> <a href="https://publications.waset.org/abstracts/83608/pathomorphological-features-of-lungs-from-brown-hares-infected-with-parasites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/83608.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">212</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">8451</span> Pressure Losses on Realistic Geometry of Tracheobronchial Tree</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Michaela%20Chovancova">Michaela Chovancova</a>, <a href="https://publications.waset.org/abstracts/search?q=Jakub%20Elcner"> Jakub Elcner</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Real bronchial tree is very complicated piping system. Analysis of flow and pressure losses in this system is very difficult. Due to the complex geometry and the very small size in the lower generations is examination by CFD possible only in the central part of bronchial tree. For specify the pressure losses of lower generations is necessary to provide a mathematical equation. Determination of mathematical formulas for calculating the pressure losses in the real lungs is due to its complexity and diversity lengthy and inefficient process. For these calculations is necessary the lungs to slightly simplify (same cross-section over the length of individual generation) or use one of the models of lungs. The simplification could cause deviations from real values. The article compares the values of pressure losses obtained from CFD simulation of air flow in the central part of the real bronchial tree with the values calculated in a slightly simplified real lungs by using a mathematical relationship derived from the Bernoulli equation and continuity equation. Then, evaluate the desirability of using this formula to determine the pressure loss across the bronchial tree. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pressure%20gradient" title="pressure gradient">pressure gradient</a>, <a href="https://publications.waset.org/abstracts/search?q=airways%20resistance" title=" airways resistance"> airways resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=real%20geometry%20of%20bronchial%20tree" title=" real geometry of bronchial tree"> real geometry of bronchial tree</a>, <a href="https://publications.waset.org/abstracts/search?q=breathing" title=" breathing"> breathing</a> </p> <a href="https://publications.waset.org/abstracts/27498/pressure-losses-on-realistic-geometry-of-tracheobronchial-tree" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27498.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">321</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">8450</span> Cadaveric Study of Lung Anatomy: A Surgical Overview</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arthi%20Ganapathy">Arthi Ganapathy</a>, <a href="https://publications.waset.org/abstracts/search?q=Rati%20Tandon"> Rati Tandon</a>, <a href="https://publications.waset.org/abstracts/search?q=Saroj%20Kaler"> Saroj Kaler</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: A thorough knowledge of variations in lung anatomy is of prime significance during surgical procedures like lobectomy, pneumonectomy, and segmentectomy of lungs. The arrangement of structures in the lung hilum act as a guide in performing such procedures. The normal pattern of arrangement of hilar structures in the right lung is eparterial bronchus, pulmonary artery, hyparterial bronchus and pulmonary veins from above downwards. In the left lung, it is pulmonary artery, principal bronchus and pulmonary vein from above downwards. The arrangement of hilar structures from anterior to posterior in both the lungs is pulmonary vein, pulmonary artery, and principal bronchus. The bronchial arteries are very small and usually the posterior most structures in the hilum of lungs. Aim: The present study aims at reporting the variations in hilar anatomy (arrangement and number) of lungs. Methodology: 75 adult formalin fixed cadaveric lungs from the department of Anatomy AIIMS New Delhi were observed for variations in the lobar anatomy. Arrangement of pulmonary hilar structures was meticulously observed, and any deviation in the pattern of presentation was recorded. Results: Among the 75 adult lung specimens observed 36 specimens were of right lung and the rest of left lung. Seven right lung specimens showed only 2 lobes with an oblique fissure dividing them and one left lung showed 3 lobes. The normal pattern of arrangement of hilar structures was seen in 22 right lungs and 23 left lungs. Rest of the lung specimens (14 right and 16 left) showed a varied pattern of arrangement of hilar structures. Some of them showed alterations in the sequence of arrangement of pulmonary artery, pulmonary veins, bronchus, and others in the number of these structures. Conclusion: Alterations in the pattern of arrangement of structures in the lung hilum are quite frequent. A compromise in knowledge of such variations will result in inadvertent complications like intraoperative bleeding during surgical procedures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fissures" title="fissures">fissures</a>, <a href="https://publications.waset.org/abstracts/search?q=hilum" title=" hilum"> hilum</a>, <a href="https://publications.waset.org/abstracts/search?q=lobes" title=" lobes"> lobes</a>, <a href="https://publications.waset.org/abstracts/search?q=pulmonary" title=" pulmonary"> pulmonary</a> </p> <a href="https://publications.waset.org/abstracts/77925/cadaveric-study-of-lung-anatomy-a-surgical-overview" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77925.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">8449</span> Assessment of Cell-Rebuilding Efficacy of Selected Food Plants in the Lungs of Wild Rats Living in a Polluted Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yahaya%20Tajudeen">Yahaya Tajudeen</a>, <a href="https://publications.waset.org/abstracts/search?q=Joy%20Okpuzor"> Joy Okpuzor</a>, <a href="https://publications.waset.org/abstracts/search?q=Tolu%20Ajayi"> Tolu Ajayi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The cell-rebuilding efficacy of four food plants eating as vegetables and spices in Nigeria was assessed in the lungs of wild rats (Rattus rattus) living in a polluted environment. The plants are roselle (Hibiscus sabdarrifa), moringa (Moringa oleifera), ginger (Zingiber officinale) and ugwu (Telfairia occidentalis). Sixty rats were caught from the vicinity of a cement factory in Sagamu, Southwestern-Nigeria and grouped into 6. The control group was administered distilled water, while the test groups were given ethanolic extracts of roselle, moringa, ginger, ugwu and the mixture of the extracts for 180 days. The histopathology of the rats was conducted before and at the end of 180 days extracts administration. Before administering the extracts, the lungs of the rats showed vascular congestion, severe fibrosis and congested alveolus; all which were also observed in the lungs of control rats at the end of the treatment. However, the lungs of rats that were treated with the extracts of the plants showed moderate, mild or no histological damage compared to the control rats. The extract of the mixture of the plants performed best, followed by ginger, ugwu and roselle, respectively. These findings suggest that the food plants contain phytonutrients and phytochemicals, which repaired damaged cells and tissues in the exposed rats. Consequently, the plants could play a role in ameliorating health effects of environmental pollution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=food%20plants" title="food plants">food plants</a>, <a href="https://publications.waset.org/abstracts/search?q=wild%20rats" title=" wild rats"> wild rats</a>, <a href="https://publications.waset.org/abstracts/search?q=lung" title=" lung"> lung</a>, <a href="https://publications.waset.org/abstracts/search?q=histopathology" title=" histopathology"> histopathology</a>, <a href="https://publications.waset.org/abstracts/search?q=fibrosis" title=" fibrosis"> fibrosis</a>, <a href="https://publications.waset.org/abstracts/search?q=cell-rebuilding" title=" cell-rebuilding"> cell-rebuilding</a> </p> <a href="https://publications.waset.org/abstracts/28191/assessment-of-cell-rebuilding-efficacy-of-selected-food-plants-in-the-lungs-of-wild-rats-living-in-a-polluted-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28191.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">367</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">8448</span> Acoustic Characteristics of Ḫijaiyaḫ Letters Pronunciation by Indonesian Native Speaker</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Romi%20Hardiyansyah">Romi Hardiyansyah</a>, <a href="https://publications.waset.org/abstracts/search?q=Raden%20Sugeng%20Joko%20Sarwono"> Raden Sugeng Joko Sarwono</a>, <a href="https://publications.waset.org/abstracts/search?q=Agus%20Samsi"> Agus Samsi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Indonesian people have a mother language but not Arabic. Meanwhile, they must be able to pronounce the Arabic because Islam is the biggest religion in Indonesia. Arabic is composed by ḫijaiyaḫ letters which has its own pronunciation. Sound production process in humans can be divided into three physiological processes, namely: the formation of airflow from the lungs, the change in airflow from the lungs into the sound, and articulation (the modulation/sound setting into a specific sound). Ḫijaiyaḫ letters has its own articulation, some of which seem strange for most people in Indonesia. Those letters come out from the middle and upper throat so that the letters has its own acoustic characteristics. Acoustic characteristics of voice can be observed by source-filter approach that has parameters: pitch, formant, and formant bandwidth. Pitch is the basic tone in every human being. Formant is the resonance frequency of the human voice. Formant bandwidth is the time-width of a formant. After recording the sound from 21 subjects, data is processed by software Praat version 5.3.39. The analysis showed that each pronunciation, syakal (vowel changer), and the place of discharge letters has the same timbre which are determined by third and fourth formant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=%E1%B8%ABijaiya%E1%B8%AB" title="ḫijaiyaḫ">ḫijaiyaḫ</a>, <a href="https://publications.waset.org/abstracts/search?q=articulation" title=" articulation"> articulation</a>, <a href="https://publications.waset.org/abstracts/search?q=pitch" title=" pitch"> pitch</a>, <a href="https://publications.waset.org/abstracts/search?q=formant" title=" formant"> formant</a>, <a href="https://publications.waset.org/abstracts/search?q=formant%20bandwidth" title=" formant bandwidth"> formant bandwidth</a>, <a href="https://publications.waset.org/abstracts/search?q=timbre" title=" timbre"> timbre</a> </p> <a href="https://publications.waset.org/abstracts/36324/acoustic-characteristics-of-ijaiya-letters-pronunciation-by-indonesian-native-speaker" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36324.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">396</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">8447</span> Excessive Recruitment of Neutrophils and Elastase Release in Emphysema and COPD; Effect of Natural Protease Inhibitors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rachid%20Kacem">Rachid Kacem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Excessive recruitment of Neutrophils into the lungs is a hallmark of several chronic inflammatory disorders such as emphysema and COPD. The resulting of this recruitment is the pathogenesis of lungs which is characterized by an imbalance between leukocyte serine proteinases mainly neutrophil elastase and the physiological inhibitors. The development of emphysema and remodeling of airway tissue occurred when neutrophil migrate into the lungs with more release of elastase and other proteolytic enzymes. Many reports have demonstrated that the extracts from medicinal plants such as Nigella sativa (L.) seeds extracts have anti-elastase activity; this is mainly due to the enrichment of the extracts with many bioactive molecules mainly phenolic compounds. Neutrophil serine proteases including human neutrophil elastase are involved in many inflammatory diseases, such as chronic obstructive pulmonary disease and emphysema. Since the current therapies for these diseases are inadequate and have numerous adverse effects, there is an acute need of potential alternative therapies. The natural protease inhibitors have received increasing attention as useful tools for potential utilization in pharmacology. This work is elucidating the most important natural phenolic substances that have been reported recently for their effectiveness as natural anti-elastase molecules, and hence, to the possibility of their use in the field of pharmaceuticals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=medicinal%20plants" title="medicinal plants">medicinal plants</a>, <a href="https://publications.waset.org/abstracts/search?q=phenols" title=" phenols"> phenols</a>, <a href="https://publications.waset.org/abstracts/search?q=elastase" title=" elastase"> elastase</a>, <a href="https://publications.waset.org/abstracts/search?q=anti-elastase" title=" anti-elastase"> anti-elastase</a>, <a href="https://publications.waset.org/abstracts/search?q=chronic%20obstructive%20pulmonary%20disease" title=" chronic obstructive pulmonary disease"> chronic obstructive pulmonary disease</a>, <a href="https://publications.waset.org/abstracts/search?q=COPD" title=" COPD"> COPD</a>, <a href="https://publications.waset.org/abstracts/search?q=emphysema" title=" emphysema"> emphysema</a> </p> <a href="https://publications.waset.org/abstracts/32920/excessive-recruitment-of-neutrophils-and-elastase-release-in-emphysema-and-copd-effect-of-natural-protease-inhibitors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32920.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">417</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">8446</span> Ultrastructural Changes Occur in Mice Lungs After Cessation to Exposure of Incense Smoke</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samar%20Rabah">Samar Rabah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Incense woods are special kind of trees called Agarwood, which characterized by good smelling odors and many medical benefits. Incense smoke is heavily used in Saudi Arabia although comprehensive studies of its effects on health are limited. The present study demonstrated lung ultrastructure changes of mice after exposure and cessation to Incense smoke. Eighty mice are divided equally into four groups, three groups are exposed to different concentrations of Incense smoke (2, 4 and 6 gm) for three months, while the fourth group is control one. At the end of each month, lungs of five animals from each group are gathered, while the last five animals from each group are kept for another 60 days without exposure to the Incense smoke to allow for recovery. Results: Transmission electron microscope investigations of all exposed groups showed hypertrophy and hyperplasia in Clara Cells and some an enlargement of the macrophage to the point that it fills a large part of the alveolar lumen. Scanning electron microscope marks presence of mucus materials attached to the epithelial bronchioles. After prevention of exposure to the Incense smoke for 60 days, necrosis and degeneration in some cells of epithelial bronchioles, fibrosis of peribronchial, thickening in alveolar walls and aggregation of lymphoid cells were demonstrated. Conclusion: Based on the above findings and other related studies (not published), we conclude that exposure to Incense smoke causes harmful effects due to sever changes in pulmonary ultrastructure, such effects do not disappear even when Incense smoke inhalation was stopped. Therefore, we recommend that Incense smoke should use only in open places to reduce its harms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Incense%20smoke" title="Incense smoke">Incense smoke</a>, <a href="https://publications.waset.org/abstracts/search?q=lungs" title=" lungs"> lungs</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrastructure%20of%20lungs" title=" ultrastructure of lungs"> ultrastructure of lungs</a>, <a href="https://publications.waset.org/abstracts/search?q=Agarwood" title=" Agarwood"> Agarwood</a> </p> <a href="https://publications.waset.org/abstracts/26850/ultrastructural-changes-occur-in-mice-lungs-after-cessation-to-exposure-of-incense-smoke" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26850.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">413</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">8445</span> Histological Changes of Mice Lungs After Daily Exposure to Different Concentration of Incense Smoke</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samar%20Omar%20A.%20Rabah">Samar Omar A. Rabah</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahar%20Ragab%20El%20Hadad"> Sahar Ragab El Hadad</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatmah%20Albani"> Fatmah Albani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since the discovery of Agarwood (Incense tree), many studies reported its characteristic effects and variable benefits, as either to produce Arabian Incense or as a traditional medicine against many diseases. Laboratory experiments were carried out on the effect of different concentrations of Incense smoke inhalation on the lung weight and tissue in female mice. This research derives its importance from the fact that Incense is heavily used in Saudi Arabia in the absence of thorough studies of its effects on health. Eighty animals are used in this study, and they are divided into four groups, each is 20 animals. Three groups are exposed to different concentrations (2, 4 and 6 gm) of Incense smoke daily for three months, and the fourth group is the control. At the end of each month, five animals from each group were dissected. Obtained data showed an increase but not significant in animal body and lung weight, this results return to natural increase as a result of normal growth of animals. Light microscope reveals some changes in the lung tissue, such as focal emphysema, rupture in the alveolar walls, hemorrhage, congestion, edema and few peri-bronchial lymphoid cells. After continuous exposure to Incense smoke focal necrosis and degradation are observed in some cells of epithelial bronchioles. Also, fibrosis of peri-bronchial, thickening in alveolar walls and aggregation of lymphoid cells are demonstrated in some lungs sections. according to the above manifestations it could be concluded that exposure to Incense smoke causes pulmonary harmful effects. Therefore, we can recommend that Incense smoke will be used only in open places to reduce its harms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=incense%20smoke" title="incense smoke">incense smoke</a>, <a href="https://publications.waset.org/abstracts/search?q=lungs" title=" lungs"> lungs</a>, <a href="https://publications.waset.org/abstracts/search?q=histological%20changes%20of%20lungs" title=" histological changes of lungs"> histological changes of lungs</a>, <a href="https://publications.waset.org/abstracts/search?q=agarwood" title=" agarwood"> agarwood</a> </p> <a href="https://publications.waset.org/abstracts/27013/histological-changes-of-mice-lungs-after-daily-exposure-to-different-concentration-of-incense-smoke" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27013.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">493</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">8444</span> Automatic Segmentation of Lung Pleura Based On Curvature Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sasidhar%20B.">Sasidhar B.</a>, <a href="https://publications.waset.org/abstracts/search?q=Bhaskar%20Rao%20N."> Bhaskar Rao N.</a>, <a href="https://publications.waset.org/abstracts/search?q=Ramesh%20Babu%20D.%20R."> Ramesh Babu D. R.</a>, <a href="https://publications.waset.org/abstracts/search?q=Ravi%20Shankar%20M."> Ravi Shankar M.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Segmentation of lung pleura is a preprocessing step in Computer-Aided Diagnosis (CAD) which helps in reducing false positives in detection of lung cancer. The existing methods fail in extraction of lung regions with the nodules at the pleura of the lungs. In this paper, a new method is proposed which segments lung regions with nodules at the pleura of the lungs based on curvature analysis and morphological operators. The proposed algorithm is tested on 06 patient’s dataset which consists of 60 images of Lung Image Database Consortium (LIDC) and the results are found to be satisfactory with 98.3% average overlap measure (AΩ). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=curvature%20analysis" title="curvature analysis">curvature analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20segmentation" title=" image segmentation"> image segmentation</a>, <a href="https://publications.waset.org/abstracts/search?q=morphological%20operators" title=" morphological operators"> morphological operators</a>, <a href="https://publications.waset.org/abstracts/search?q=thresholding" title=" thresholding"> thresholding</a> </p> <a href="https://publications.waset.org/abstracts/20846/automatic-segmentation-of-lung-pleura-based-on-curvature-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20846.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">596</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">8443</span> GUI Design of Mathematical Model of Cardiovascular-Respiratory System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ntaganda%20J.M.">Ntaganda J.M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Maniraguha%20J.D."> Maniraguha J.D.</a>, <a href="https://publications.waset.org/abstracts/search?q=Mukeshimana%20S."> Mukeshimana S.</a>, <a href="https://publications.waset.org/abstracts/search?q=Harelimana%20D"> Harelimana D</a>, <a href="https://publications.waset.org/abstracts/search?q=Bizimungu%20T."> Bizimungu T.</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruataganda%20E."> Ruataganda E.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the design of Graphic User Interface (GUI) in Matlab as interaction tool between human and machine. The designed GUI can be used by medical doctors and other experts particularly the physiologists. Matlab packages and estimated parameters of the mathematical model of cardiovascular-respiratory system developed in Rwandan context are used in GUI. The ordinary differential equations (ODE’s) govern a mathematical model in designing GUI in Matlab and a window that sets model estimated parameters and the measured parameters by any user. For healthy subject, these measured parameters include heart rate, systolic blood and diastolic blood pressure, partial pressure of oxygen in arterial blood, partial pressure of carbon dioxide in arterial blood, concentration of bound and dissolved oxygen in the mixed venous blood entering the lungs, and concentration of bound and dissolved carbon dioxide in the mixed venous blood entering the lungs. The results of numerical test give a consistent appearance as empirically known results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Graphic%20User%20Interface" title="Graphic User Interface">Graphic User Interface</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=cardiovascur-respiratory%20system" title=" cardiovascur-respiratory system"> cardiovascur-respiratory system</a>, <a href="https://publications.waset.org/abstracts/search?q=walking%20physical%20activity" title=" walking physical activity"> walking physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20pressure" title=" blood pressure"> blood pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen" title=" oxygen"> oxygen</a> </p> <a href="https://publications.waset.org/abstracts/135902/gui-design-of-mathematical-model-of-cardiovascular-respiratory-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/135902.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">118</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">8442</span> Metastasis of Breast Cancer to the Lungs: Implications of Molecular Biology and Treatment Options</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fakhrosadat%20Sajjadian">Fakhrosadat Sajjadian</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The majority of deaths in cancer patients are caused by distant metastasis. Breast cancer shows a unique spread pattern, often affecting bone, liver, lung, and brain. Breast cancer can be categorized into various subtypes according to gene expression patterns, and these subtypes exhibit specific preferences for organs where metastasis occurs. Breast tumors with luminal characteristics have a preference for spreading to the bone, whereas basal-like breast cancer (BLBC) shows a tendency to metastasize to the lungs. Still, the mechanisms behind this particular pattern of metastasis in organs have yet to be fully understood. In this evaluation, we will outline the latest progress in molecular signaling pathways and treatment methods for breast cancer lung metastasis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lung%20cancer" title="lung cancer">lung cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=liver%20cancer" title=" liver cancer"> liver cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnosis" title=" diagnosis"> diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=BLBC" title=" BLBC"> BLBC</a>, <a href="https://publications.waset.org/abstracts/search?q=metastasis" title=" metastasis"> metastasis</a> </p> <a href="https://publications.waset.org/abstracts/185132/metastasis-of-breast-cancer-to-the-lungs-implications-of-molecular-biology-and-treatment-options" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185132.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">48</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">8441</span> Correlation Between Cytokine Levels and Lung Injury in the Syrian Hamster (Mesocricetus Auratus) Covid-19 Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gleb%20Fomin">Gleb Fomin</a>, <a href="https://publications.waset.org/abstracts/search?q=Kairat%20Tabynov"> Kairat Tabynov</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurkeldy%20Turebekov"> Nurkeldy Turebekov</a>, <a href="https://publications.waset.org/abstracts/search?q=Dinara%20Turegeldiyeva"> Dinara Turegeldiyeva</a>, <a href="https://publications.waset.org/abstracts/search?q=Rinat%20Islamov"> Rinat Islamov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The level of major cytokines in the blood of patients with COVID-19 varies greatly depending on age, gender, duration and severity of infection, and comorbidity. There are two clinically significant cytokines, IL-6 and TNF-α, which increase in levels in patients with severe COVID-19. However, in a model of COVID-19 in hamsters, TNF-α levels are unchanged or reduced, while the expression of other cytokines reflects the profile of cytokines found in patients’ plasma. The aim of our study was to evaluate the relationship between the level of cytokines in the blood, lungs, and lung damage in the model of the Syrian hamster (Mesocricetus auratus) infected with the SARS-CoV-2 strain. The study used outbred female and male Syrian hamsters (n=36, 4 groups) weighing 80-110 g and 5 months old (protocol IACUC, #4, 09/22/2020). Animals were infected intranasally with the hCoV-19/Kazakhstan/KazNAU-NSCEDI-481/2020 strain and euthanized at 3 d.p.i. The level of cytokines IL-6, TNF-α, IFN-α, and IFN-γ was determined by ELISA MyBioSourse (USA) for hamsters. Lung samples were subjected to histological processing. The presence of pathological changes in histological preparations was assessed on a 3-point scale. The work was carried out in the ABSL-3 laboratory. The data were analyzed in GraphPad Prism 6.00 (GraphPad Software, La Jolla, California, USA). The work was supported by the MES RK grant (AP09259865). In the blood, the level of TNF-α increased in males (p=0.0012) and IFN-γ in males and females (p=0.0001). On the contrary, IFN-α production decreased (p=0.0006). Only TNF-α level increased in lung tissues (p=0.0011). Correlation analysis showed a negative relationship between the level of IL-6 in the blood and lung damage in males (r -0.71, p=0.0001) and females (r-0.57, p=0.025). On the contrary, in males, the level of IL-6 in the lungs and score is positively correlated (r 0.80, p=0.01). The level of IFN-γ in the blood (r -0.64, p=0.035) and lungs (r-0.72, p=0.017) in males has a negative correlation with lung damage. No links were found for TNF-α and IFN-α. The study showed a positive association between lung injury and tissue levels of IL-6 in male hamsters. It is known that in humans, high concentrations of IL-6 in the lungs are associated with suppression of cellular immunity and, as a result, with an increase in the severity of COVID-19. TNF-α and IFN-γ play a key role in the pathogenesis of COVID-19 in hamsters. However, the mechanisms of their activity require more detailed study. IFN-α plays a lesser role in direct lung injury in a Syrian hamster model. We have shown the significance of tissue IL-6 and IFN-γ as predictors of the severity of lung damage in COVID-19 in the Syrian hamster model. Changes in the level of cytokines in the blood may not always reflect pathological processes in the lungs with COVID-19. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=syrian%20hamster" title="syrian hamster">syrian hamster</a>, <a href="https://publications.waset.org/abstracts/search?q=COVID-19" title=" COVID-19"> COVID-19</a>, <a href="https://publications.waset.org/abstracts/search?q=cytokines" title=" cytokines"> cytokines</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20model" title=" biological model"> biological model</a> </p> <a href="https://publications.waset.org/abstracts/156510/correlation-between-cytokine-levels-and-lung-injury-in-the-syrian-hamster-mesocricetus-auratus-covid-19-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156510.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">92</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8440</span> Human Security and Human Trafficking Related Corruption</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ekin%20D.%20Horzum">Ekin D. Horzum</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the proposal is to examine the relationship between human trafficking related corruption and human security. The proposal suggests that the human trafficking related corruption is about willingness of the states to turn a blind eye to the human trafficking cases. Therefore, it is important to approach human trafficking related corruption in terms of human security and human rights violation to find an effective way to fight against human trafficking. In this context, the purpose of this proposal is to examine the human trafficking related corruption as a safe haven in which trafficking thrives for perpetrators. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20trafficking" title="human trafficking">human trafficking</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20security" title=" human security"> human security</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20rights" title=" human rights"> human rights</a>, <a href="https://publications.waset.org/abstracts/search?q=corruption" title=" corruption"> corruption</a>, <a href="https://publications.waset.org/abstracts/search?q=organized%20crime" title=" organized crime"> organized crime</a> </p> <a href="https://publications.waset.org/abstracts/5546/human-security-and-human-trafficking-related-corruption" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5546.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">475</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">8439</span> Morphological and Molecular Evaluation of Dengue Virus Serotype 3 Infection in BALB/c Mice Lungs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gabriela%20C.%20Caldas">Gabriela C. Caldas</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernanda%20C.%20Jacome"> Fernanda C. Jacome</a>, <a href="https://publications.waset.org/abstracts/search?q=Arthur%20da%20C.%20Rasinhas"> Arthur da C. Rasinhas</a>, <a href="https://publications.waset.org/abstracts/search?q=Ortrud%20M.%20Barth"> Ortrud M. Barth</a>, <a href="https://publications.waset.org/abstracts/search?q=Flavia%20B.%20dos%20Santos"> Flavia B. dos Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Priscila%20C.%20G.%20Nunes"> Priscila C. G. Nunes</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuli%20R.%20M.%20de%20Souza"> Yuli R. M. de Souza</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Paulo%20de%20A.%20Manso"> Pedro Paulo de A. Manso</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcelo%20P.%20Machado"> Marcelo P. Machado</a>, <a href="https://publications.waset.org/abstracts/search?q=Debora%20F.%20Barreto-Vieira"> Debora F. Barreto-Vieira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The establishment of animal models for studies of DENV infections has been challenging, since circulating epidemic viruses do not naturally infect nonhuman species. Such studies are of great relevance to the various areas of dengue research, including immunopathogenesis, drug development and vaccines. In this scenario, the main objective of this study is to verify possible morphological changes, as well as the presence of antigens and viral RNA in lung samples from BALB/c mice experimentally infected with an epidemic and non-neuroadapted DENV-3 strain. Male BALB/c mice, 2 months old, were inoculated with DENV-3 by intravenous route. After 72 hours of infection, the animals were euthanized and the lungs were collected. Part of the samples was processed by standard technique for analysis by light and transmission electronic microscopies and another part was processed for real-time PCR analysis. Morphological analyzes of lungs from uninfected mice showed preserved tissue areas. In mice infected with DENV-3, the analyzes revealed interalveolar septum thickening with presence of inflammatory infiltrate, foci of alveolar atelectasis and hyperventilation, bleeding foci in the interalveolar septum and bronchioles, peripheral capillary congestion, accumulation of fluid in the blood capillary, signs of interstitial cell necrosis presence of platelets and mononuclear inflammatory cells circulating in the capillaries and/or adhered to the endothelium. In addition, activation of endothelial cells, platelets, mononuclear inflammatory cell and neutrophil-type polymorphonuclear inflammatory cell evidenced by the emission of cytoplasmic membrane prolongation was observed. DEN-like particles were seen in the cytoplasm of endothelial cells. The viral genome was recovered from 3 in 12 lung samples. These results demonstrate that the BALB / c mouse represents a suitable model for the study of the histopathological changes induced by DENV infection in the lung, with tissue alterations similar to those observed in human cases of DEN. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BALB%2Fc%20mice" title="BALB/c mice">BALB/c mice</a>, <a href="https://publications.waset.org/abstracts/search?q=dengue" title=" dengue"> dengue</a>, <a href="https://publications.waset.org/abstracts/search?q=histopathology" title=" histopathology"> histopathology</a>, <a href="https://publications.waset.org/abstracts/search?q=lung" title=" lung"> lung</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrastructure" title=" ultrastructure"> ultrastructure</a> </p> <a href="https://publications.waset.org/abstracts/98514/morphological-and-molecular-evaluation-of-dengue-virus-serotype-3-infection-in-balbc-mice-lungs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98514.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">253</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">8438</span> Silver Nanoparticle Application in Food Packaging and Impacts on Food Safety and Consumer’s Health</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Worku%20Dejene%20Bekele">Worku Dejene Bekele</a>, <a href="https://publications.waset.org/abstracts/search?q=Andr%C3%A1s%20Marczika%20Csilla%20S%C3%B6r%C3%B6s"> András Marczika Csilla Sörös</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Silver nanoparticles are silver metal with a size of 1-100nm. The most common source of silver nanoparticles is inorganic salts. Nanoparticles can be ingested through our foods and constitute nanoparticles and silver ions, whether as an additive or by migrants and, in some cases, as a pollutant. Silver nanoparticles are the most widely applicable engineered nanomaterials, especially for antimicrobial function. Ag nanoparticles give different advantages in the case of food safety, quality, and overall acceptability; however, they affect the health of humans and animals, putting them at risk of health problems and environmental pollution. Silver nanoparticles have been used widely in food packaging technologies, especially in water treatments, meat and meat products, fruit, and many other food products. This is for bio-preservation from food products. The primary goal of this review is to determine the safety and health impact of Ag nanoparticles application in food packaging and analysis of the human organs more affected by this preservative technology, to assess the implications of a nanoparticle on food safety, to determine the effects of nanoparticles on consumers health and to determine the impact of nanotechnology on product acceptability. But currently, much research has demonstrated that there is cause to believe that silver nanoparticles may have toxicological effects on biological organs and systems. The silver nanoparticles affect DNA expression, gastrointestinal barriers, lungs, and other breathing organs illness. Silver particles and molecules are very toxic. During its application in food packaging, food industries used the thinnest particle. This particle can potentially affect the gastrointestinal tracts-it suffers from mucus production, DNA, lungs, and other breezing organs. This review is targeted to demonstrate the knowledge gap that industrials use in the application of silver nanoparticles in food packaging and preservation and its health effects on the consumer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=food%20preservatives" title="food preservatives">food preservatives</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20impact" title=" health impact"> health impact</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticle" title=" nanoparticle"> nanoparticle</a>, <a href="https://publications.waset.org/abstracts/search?q=silver%20nanoparticle" title=" silver nanoparticle"> silver nanoparticle</a> </p> <a href="https://publications.waset.org/abstracts/183084/silver-nanoparticle-application-in-food-packaging-and-impacts-on-food-safety-and-consumers-health" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183084.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">69</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">8437</span> Ex-vivo Bio-distribution Studies of a Potential Lung Perfusion Agent</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shabnam%20Sarwar">Shabnam Sarwar</a>, <a href="https://publications.waset.org/abstracts/search?q=Franck%20Lacoeuille"> Franck Lacoeuille</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20%20Withofs"> Nadia Withofs</a>, <a href="https://publications.waset.org/abstracts/search?q=Roland%20Hustinx"> Roland Hustinx</a> </p> <p class="card-text"><strong>Abstract:</strong></p> After the development of a potential surrogate of MAA, and its successful application for the diagnosis of pulmonary embolism in artificially embolized rats’ lungs, this microparticulate system were radiolabelled with gallium-68 to synthesize 68Ga-SBMP with high radiochemical purity >99%. As a prerequisite step of clinical trials, 68Ga- labelled starch based microparticles (SBMP) were analysed for their in-vivo behavior in small animals. The purpose of the presented work includes the ex-vivo biodistribution studies of 68Ga-SBMP in order to assess the activity uptake in target organs with respect to time, excretion pathways of the radiopharmaceutical, %ID/g in major organs, T/NT ratios, in-vivo stability of the radiotracer and subsequently the microparticles in the target organs. Radiolabelling of starch based microparticles was performed by incubating it with 68Ga generator eluate (430±26 MBq) at room temperature and pressure without using any harsh reaction condition. For Ex-vivo biodistribution studies healthy White Wistar rats weighing between 345-460 g were injected intravenously 68Ga-SBMP 20±8 MBq, containing about 2,00,000-6,00,000 SBMP particles in a volume of 700µL. The rats were euthanized at predefined time intervals (5min, 30min, 60min and 120min) and their organ parts were cut, washed, and put in the pre-weighed tubes and measured for radioactivity counts through automatic Gamma counter. The 68Ga-SBMP produced >99% RCP just after 10-20 min incubation through a simple and robust procedure. Biodistribution of 68Ga-SBMP showed that initially just after 5 min post injection major uptake was observed in the lungs following by blood, heart, liver, kidneys, bladder, urine, spleen, stomach, small intestine, colon, skin and skeleton, thymus and at last the smallest activity was found in brain. Radioactivity counts stayed stable in lungs with gradual decrease with the passage of time, and after 2h post injection, almost half of the activity were seen in lungs. This is a sufficient time to perform PET/CT lungs scanning in humans while activity in the liver, spleen, gut and urinary system decreased with time. The results showed that urinary system is the excretion pathways instead of hepatobiliary excretion. There was a high value of T/NT ratios which suggest fine tune images for PET/CT lung perfusion studies henceforth further pre-clinical studies and then clinical trials should be planned in order to utilize this potential lung perfusion agent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=starch%20based%20microparticles" title="starch based microparticles">starch based microparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=gallium-68" title=" gallium-68"> gallium-68</a>, <a href="https://publications.waset.org/abstracts/search?q=biodistribution" title=" biodistribution"> biodistribution</a>, <a href="https://publications.waset.org/abstracts/search?q=target%20organs" title=" target organs"> target organs</a>, <a href="https://publications.waset.org/abstracts/search?q=excretion%20pathways" title=" excretion pathways"> excretion pathways</a> </p> <a href="https://publications.waset.org/abstracts/128551/ex-vivo-bio-distribution-studies-of-a-potential-lung-perfusion-agent" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128551.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">173</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">8436</span> Prerequisites for the Acquisition of Mammalian Pathogenicity by Influenza A Virus with a Prototypic Avian PB2 Gene</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chung-Young%20Lee">Chung-Young Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Se-Hee%20Ahn"> Se-Hee Ahn</a>, <a href="https://publications.waset.org/abstracts/search?q=Ilhwan%20Kim"> Ilhwan Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Du-Min%20Go"> Du-Min Go</a>, <a href="https://publications.waset.org/abstracts/search?q=Dae-Yong%20Kim"> Dae-Yong Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun-Gu%20Choi"> Jun-Gu Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Youn-Jeong%20Lee"> Youn-Jeong Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jae-Hong%20Kim"> Jae-Hong Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyuk-Joon%20Kwon"> Hyuk-Joon Kwon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The polymerase of avian influenza A virus (AIV) is a heterotrimer composed of PB2, PB1 and PA. PB2 plays a role in overcoming the host barrier; however, the genetic prerequisites for avian PB2 to acquire mammalian pathogenic mutations have not been well elucidated. Here, we demonstrated that key amino acid mutations (I66M, I109V and I133V, collectively referred to as MVV) of prototypic avian PB2 increase the replication efficiency of recombinant PR8 virus carrying the mutated PB2 in both avian and mammalian hosts. The MVV mutations caused no weight loss in mice, but they did allow replication in infected lungs, and the viruses acquired fatal mammalian pathogenic mutations such as Q591R/K, E627K, or D701N in the infected lungs. The MVV mutations are located at the interfaces of the trimer and are predicted to increase the strength of this structure. Thus, gaining MVV mutations might be the first step for AIV to acquire mammalian pathogenicity. These results provide new insights into the evolution of AIV in birds and mammals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=avian%20influenza%20A%20virus" title="avian influenza A virus">avian influenza A virus</a>, <a href="https://publications.waset.org/abstracts/search?q=prototypic%20PB2" title=" prototypic PB2"> prototypic PB2</a>, <a href="https://publications.waset.org/abstracts/search?q=polymerase%20activity" title=" polymerase activity"> polymerase activity</a>, <a href="https://publications.waset.org/abstracts/search?q=mammalian%20pathogenicity" title=" mammalian pathogenicity"> mammalian pathogenicity</a>, <a href="https://publications.waset.org/abstracts/search?q=first-step%20mutations" title=" first-step mutations"> first-step mutations</a> </p> <a href="https://publications.waset.org/abstracts/74659/prerequisites-for-the-acquisition-of-mammalian-pathogenicity-by-influenza-a-virus-with-a-prototypic-avian-pb2-gene" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74659.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">345</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">8435</span> Biophysical Analysis of the Interaction of Polymeric Nanoparticles with Biomimetic Models of the Lung Surfactant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Weiam%20Daear">Weiam Daear</a>, <a href="https://publications.waset.org/abstracts/search?q=Patrick%20Lai"> Patrick Lai</a>, <a href="https://publications.waset.org/abstracts/search?q=Elmar%20Prenner"> Elmar Prenner</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The human body offers many avenues that could be used for drug delivery. The pulmonary route, which is delivered through the lungs, presents many advantages that have sparked interested in the field. These advantages include; 1) direct access to the lungs and the large surface area it provides, and 2) close proximity to the blood circulation. The air-blood barrier of the alveoli is about 500 nm thick. The air-blood barrier consist of a monolayer of lipids and few proteins called the lung surfactant and cells. This monolayer consists of ~90% lipids and ~10% proteins that are produced by the alveolar epithelial cells. The two major lipid classes constitutes of various saturation and chain length of phosphatidylcholine (PC) and phosphatidylglycerol (PG) representing 80% of total lipid component. The major role of the lung surfactant monolayer is to reduce surface tension experienced during breathing cycles in order to prevent lung collapse. In terms of the pulmonary drug delivery route, drugs pass through various parts of the respiratory system before reaching the alveoli. It is at this location that the lung surfactant functions as the air-blood barrier for drugs. As the field of nanomedicine advances, the use of nanoparticles (NPs) as drug delivery vehicles is becoming very important. This is due to the advantages NPs provide with their large surface area and potential specific targeting. Therefore, studying the interaction of NPs with lung surfactant and whether they affect its stability becomes very essential. The aim of this research is to develop a biomimetic model of the human lung surfactant followed by a biophysical analysis of the interaction of polymeric NPs. This biomimetic model will function as a fast initial mode of testing for whether NPs affect the stability of the human lung surfactant. The model developed thus far is an 8-component lipid system that contains major PC and PG lipids. Recently, a custom made 16:0/16:1 PC and PG lipids were added to the model system. In the human lung surfactant, these lipids constitute 16% of the total lipid component. According to the author’s knowledge, there is not much monolayer data on the biophysical analysis of the 16:0/16:1 lipids, therefore more analysis will be discussed here. Biophysical techniques such as the Langmuir Trough is used for stability measurements which monitors changes to a monolayer's surface pressure upon NP interaction. Furthermore, Brewster Angle Microscopy (BAM) employed to visualize changes to the lateral domain organization. Results show preferential interactions of NPs with different lipid groups that is also dependent on the monolayer fluidity. Furthermore, results show that the film stability upon compression is unaffected, but there are significant changes in the lateral domain organization of the lung surfactant upon NP addition. This research is significant in the field of pulmonary drug delivery. It is shown that NPs within a certain size range are safe for the pulmonary route, but little is known about the mode of interaction of those polymeric NPs. Moreover, this work will provide additional information about the nanotoxicology of NPs tested. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brewster%20angle%20microscopy" title="Brewster angle microscopy">Brewster angle microscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=lipids" title=" lipids"> lipids</a>, <a href="https://publications.waset.org/abstracts/search?q=lung%20surfactant" title=" lung surfactant"> lung surfactant</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a> </p> <a href="https://publications.waset.org/abstracts/82879/biophysical-analysis-of-the-interaction-of-polymeric-nanoparticles-with-biomimetic-models-of-the-lung-surfactant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82879.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">8434</span> Effects of Smoking on the Indoor Air Quality and COVID-19</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sonam%20Sandal">Sonam Sandal</a>, <a href="https://publications.waset.org/abstracts/search?q=Susan%20Verghese%20P."> Susan Verghese P.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The phrase "environmental tobacco smoke" (ETS) refers to exposure to tobacco smoke that isn't from your own smoking but instead is caused by being in close proximity to someone else's cigar, cigarette, or pipe smoke. Environmental cigarette smoke is one of the main contributors to indoor air pollution (IAP), which is exceedingly harmful to human health and results in millions of deaths each year, according to the World Health Organization. Sidestream smoke (SS), which is discharged from a cigarette's burning end in between puffs, is the primary cause of ETS. The bulk of the ETS residue is composed of gases that are produced while smoking through the cigarette paper, mainstream smoke (MS) ingested, and side stream smoke emitted while inhaling a puff from the burning end. Each of these mixtures—SS, ETS, and MS—is an aerosol composed of an IAP-causing vapor phase and a particle phase. Therefore, indoor air-cleaning equipment designed to remove particles will not significantly alter nicotine exposure but will alter the concentrations of other dangerous substances, including particulate matter (PM), PM 2.5, and PM 10. In conclusion, indoor airborne contaminants pose serious risks to human health. ETS degrades the air quality, and when someone breathes this bad air, it weakens their lungs and makes them more susceptible to COVID-19. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pm%2010" title="pm 10">pm 10</a>, <a href="https://publications.waset.org/abstracts/search?q=covid-19" title=" covid-19"> covid-19</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20air%20pollution" title=" indoor air pollution"> indoor air pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=cigarette%20smoke." title=" cigarette smoke."> cigarette smoke.</a>, <a href="https://publications.waset.org/abstracts/search?q=pm%202.5" title=" pm 2.5"> pm 2.5</a> </p> <a href="https://publications.waset.org/abstracts/172180/effects-of-smoking-on-the-indoor-air-quality-and-covid-19" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172180.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">71</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">8433</span> The Effects of Terrein: A Secondary Metabolite from Aspergillus terreus as Anticancer and Antimetastatic Agent on Lung Cancer Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Paiwan%20Buachan">Paiwan Buachan</a>, <a href="https://publications.waset.org/abstracts/search?q=Maneekarn%20Namsa-Aid"> Maneekarn Namsa-Aid</a>, <a href="https://publications.waset.org/abstracts/search?q=Suchada%20Jongrungruangchok"> Suchada Jongrungruangchok</a>, <a href="https://publications.waset.org/abstracts/search?q=Foengchat%20Jarintanan"> Foengchat Jarintanan</a>, <a href="https://publications.waset.org/abstracts/search?q=Wanlaya%20Uthaisang-Tanechpongtamb"> Wanlaya Uthaisang-Tanechpongtamb</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lung cancer or pulmonary carcinoma is the uncontrolled growth of abnormal cells in one or both of the lungs. These abnormal cells can spread to other organs of the body through lymphatic system or bloodstream which is called metastatic stage that leading cause of cancer death. Terrein (C₈H₁₀O₃; MW= 154.06 kDa) is a secondary bioactive fungal metabolite, which was isolated from the Aspergillus terreus. In this study, we investigated the effects of terrein on the inhibition of human lung cancer cell proliferation and metastasis. The A549 human non-small cell lung cancer cell line was used as a model. Terrein significantly inhibited lung cancer cell proliferation measuring by a colorimetric MTT assay (IC₅₀ 0.32 mM) and significantly inhibited metastatic processes including migration, invasion, and adhesion that determined by wound healing assay, transwell assay, and adhesion assay, respectively. These findings indicate that terrein could be a potential therapeutic agent for lung cancer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=terrein" title="terrein">terrein</a>, <a href="https://publications.waset.org/abstracts/search?q=lung%20cancer" title=" lung cancer"> lung cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=anticancer" title=" anticancer"> anticancer</a>, <a href="https://publications.waset.org/abstracts/search?q=antimetastatic" title=" antimetastatic"> antimetastatic</a> </p> <a href="https://publications.waset.org/abstracts/101529/the-effects-of-terrein-a-secondary-metabolite-from-aspergillus-terreus-as-anticancer-and-antimetastatic-agent-on-lung-cancer-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101529.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">170</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">8432</span> The Impact of Artificial Intelligence on Human Rights Development</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kerols%20Seif%20Said%20Botros">Kerols Seif Said Botros</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The relationship between development and human rights has been debated for a long time. Various principles, from the right to development to development-based human rights, are applied to understand the dynamics between these two concepts. Despite the measures calculated, the connection between enhancement and human rights remains vague. Despite, the connection between these two opinions and the need to strengthen human rights have increased in recent years. It will then be examined whether the right to sustainable development is acceptable or not. In various human rights instruments and this is a good vibe to the request cited above. The book then cites domestic and international human rights treaties, as well as jurisprudence and regulations defining human rights institutions, to support this view. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title="sustainable development">sustainable development</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20rights" title=" human rights"> human rights</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20right%20to%20development" title=" the right to development"> the right to development</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20human%20rights-based%20approach%20to%20development" title=" the human rights-based approach to development"> the human rights-based approach to development</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20rights" title=" environmental rights"> environmental rights</a>, <a href="https://publications.waset.org/abstracts/search?q=economic%20development" title=" economic development"> economic development</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20sustainability%20human%20rights%20protection" title=" social sustainability human rights protection"> social sustainability human rights protection</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20rights%20violations" title=" human rights violations"> human rights violations</a>, <a href="https://publications.waset.org/abstracts/search?q=workers%E2%80%99%20rights" title=" workers’ rights"> workers’ rights</a>, <a href="https://publications.waset.org/abstracts/search?q=justice" title=" justice"> justice</a>, <a href="https://publications.waset.org/abstracts/search?q=security." title=" security."> security.</a> </p> <a href="https://publications.waset.org/abstracts/185693/the-impact-of-artificial-intelligence-on-human-rights-development" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185693.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">54</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">8431</span> PathoPy2.0: Application of Fractal Geometry for Early Detection and Histopathological Analysis of Lung Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rhea%20Kapoor">Rhea Kapoor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fractal dimension provides a way to characterize non-geometric shapes like those found in nature. The purpose of this research is to estimate Minkowski fractal dimension of human lung images for early detection of lung cancer. Lung cancer is the leading cause of death among all types of cancer and an early histopathological analysis will help reduce deaths primarily due to late diagnosis. A Python application program, PathoPy2.0, was developed for analyzing medical images in pixelated format and estimating Minkowski fractal dimension using a new box-counting algorithm that allows windowing of images for more accurate calculation in the suspected areas of cancerous growth. Benchmark geometric fractals were used to validate the accuracy of the program and changes in fractal dimension of lung images to indicate the presence of issues in the lung. The accuracy of the program for the benchmark examples was between 93-99% of known values of the fractal dimensions. Fractal dimension values were then calculated for lung images, from National Cancer Institute, taken over time to correctly detect the presence of cancerous growth. For example, as the fractal dimension for a given lung increased from 1.19 to 1.27 due to cancerous growth, it represents a significant change in fractal dimension which lies between 1 and 2 for 2-D images. Based on the results obtained on many lung test cases, it was concluded that fractal dimension of human lungs can be used to diagnose lung cancer early. The ideas behind PathoPy2.0 can also be applied to study patterns in the electrical activity of the human brain and DNA matching. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fractals" title="fractals">fractals</a>, <a href="https://publications.waset.org/abstracts/search?q=histopathological%20analysis" title=" histopathological analysis"> histopathological analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20processing" title=" image processing"> image processing</a>, <a href="https://publications.waset.org/abstracts/search?q=lung%20cancer" title=" lung cancer"> lung cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=Minkowski%20dimension" title=" Minkowski dimension"> Minkowski dimension</a> </p> <a href="https://publications.waset.org/abstracts/96476/pathopy20-application-of-fractal-geometry-for-early-detection-and-histopathological-analysis-of-lung-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96476.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">8430</span> Liposomal Antihelmintics in Parasitology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nina%20Ivanova">Nina Ivanova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> More than one third of the population and animals are infected with parasitic helminths. It is especially difficult to cure the larval forms of parasites. The larvae of Hymenolepis nana invade the villi of the intestinal mucosa. Toxocara larvae can live in the liver, heart, lungs, brain, eyes, and pancreas. Commercial antiparasitic drugs cannot guarantee a 100% cure after a single course of treatment, because parasite larvae invade the villi of the intestinal mucosa and the anthelmintics do not reach and kill cestode larvae. The aim of this work was to conduct a study of liposomal antihelminthics on the laboratory animals under the certification received from the Committee on Bioethics and Deontology. It has been checked: 1) anthelmintic activity of the liposomal form of fenasal in experimental hymenolepidosis of white mice (larval stage - Hymenolepis nana). 2) anthelmintic activity of the liposomal form of albendazole in experimental toxocariasis of white mice (in the lungs at the stage of larval migration). Since some helminths cause hemolysis of erythrocytes as we used a mixture of polar lipids developed by us with antihemolytic activity to obtain liposomes Fenasal and albendazole were included in the liposome membrane in the ratio of anthelmintic: lipids 1:10. . The average size of liposomes was 180 nm, and the concentration of lipids in liposomes was 1%. The researches were carried out on white male mice who were infected with Hymenolepis Nana invasional eggs in a peroral way with a doze of 100 eggs per animal. On the 5th day after infection, a liposomal fenasal and commercial fenasal were administered orally for comparison. The animals were observed for 15 days. Before the introduction of liposomes and on the 3rd, 5th, 15th day after the administration of the drug, studies were carried out on the presence of helminths in the organs of animals. The liposomal fenasal, when administered orally, had an anthelmintic effect on Hymenolepis Nana cysticercoids at a dose of 25 mg/kg. The percentage of efficiency was 90.06, 91.36 96.85% on days 3, 5, 15, respectively. For comparison, the commercial activity was at a dose of 200 mg/ml, which is 8 times higher than the dose of liposomal fenasal. To evaluate the anthelmintic effect of the liposomal form of albendazole in experimental toxocariasis of white mice (toxascaris in the lungs at the stage of larval migration), studies were also carried out on white mice. The animals were infected with invasive eggs of Toxocara canis, orally, at a dose of 100 eggs per animal. On the 5th day after infection, the liposomal albendazole was administered orally. The efficacy of the study dosage form was determined by counting Larva mirgans larvae in the lungs. The results obtained showed that the liposomal albendazole had the greatest anthelmintic effect on Toxocara larvae at a dose of 2.0 mg/kg, which was 3.75 times less than the therapeutic one. At the same time, the percentage of efficiency was 93.75% on the 3rd day, and 98.66% on the 5th day. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hymenolepis" title="hymenolepis">hymenolepis</a>, <a href="https://publications.waset.org/abstracts/search?q=Toxocara" title=" Toxocara"> Toxocara</a>, <a href="https://publications.waset.org/abstracts/search?q=larvae" title=" larvae"> larvae</a>, <a href="https://publications.waset.org/abstracts/search?q=liposomes" title=" liposomes"> liposomes</a> </p> <a href="https://publications.waset.org/abstracts/150739/liposomal-antihelmintics-in-parasitology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150739.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">113</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">8429</span> Computation of Radiotherapy Treatment Plans Based on CT to ED Conversion Curves</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20Petrovi%C4%87">B. Petrović</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Rutonjski"> L. Rutonjski</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Baucal"> M. Baucal</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Teodorovi%C4%87"> M. Teodorović</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20%C4%8Cudi%C4%87"> O. Čudić</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Basari%C4%87"> B. Basarić</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Radiotherapy treatment planning computers use CT data of the patient. For the computation of a treatment plan, treatment planning system must have an information on electron densities of tissues scanned by CT. This information is given by the conversion curve CT (CT number) to ED (electron density), or simply calibration curve. Every treatment planning system (TPS) has built in default CT to ED conversion curves, for the CTs of different manufacturers. However, it is always recommended to verify the CT to ED conversion curve before actual clinical use. Objective of this study was to check how the default curve already provided matches the curve actually measured on a specific CT, and how much it influences the calculation of a treatment planning computer. The examined CT scanners were from the same manufacturer, but four different scanners from three generations. The measurements of all calibration curves were done with the dedicated phantom CIRS 062M Electron Density Phantom. The phantom was scanned, and according to real HU values read at the CT console computer, CT to ED conversion curves were generated for different materials, for same tube voltage 140 kV. Another phantom, CIRS Thorax 002 LFC which represents an average human torso in proportion, density and two-dimensional structure, was used for verification. The treatment planning was done on CT slices of scanned CIRS LFC 002 phantom, for selected cases. Interest points were set in the lungs, and in the spinal cord, and doses recorded in TPS. The overall calculated treatment times for four scanners and default scanner did not differ more than 0.8%. Overall interest point dose in bone differed max 0.6% while for single fields was maximum 2.7% (lateral field). Overall interest point dose in lungs differed max 1.1% while for single fields was maximum 2.6% (lateral field). It is known that user should verify the CT to ED conversion curve, but often, developing countries are facing lack of QA equipment, and often use default data provided. We have concluded that the CT to ED curves obtained differ in certain points of a curve, generally in the region of higher densities. This influences the treatment planning result which is not significant, but definitely does make difference in the calculated dose. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Computation%20of%20treatment%20plan" title="Computation of treatment plan">Computation of treatment plan</a>, <a href="https://publications.waset.org/abstracts/search?q=conversion%20curve" title=" conversion curve"> conversion curve</a>, <a href="https://publications.waset.org/abstracts/search?q=radiotherapy" title=" radiotherapy"> radiotherapy</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20density" title=" electron density"> electron density</a> </p> <a href="https://publications.waset.org/abstracts/7887/computation-of-radiotherapy-treatment-plans-based-on-ct-to-ed-conversion-curves" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7887.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">486</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">8428</span> An Attenuated Quadruple Gene Mutant of Mycobacterium tuberculosis Imparts Protection against Tuberculosis in Guinea Pigs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shubhita%20Mathur">Shubhita Mathur</a>, <a href="https://publications.waset.org/abstracts/search?q=Ritika%20Kar%20Bahal"> Ritika Kar Bahal</a>, <a href="https://publications.waset.org/abstracts/search?q=Priyanka%20Chauhan"> Priyanka Chauhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Anil%20K.%20Tyagi"> Anil K. Tyagi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mycobacterium tuberculosis, the causative agent of human tuberculosis, is a major cause of mortality. Bacillus Calmette-Guérin (BCG), the only licensed vaccine available for protection against tuberculosis confers highly variable protection ranging from 0%-80%. Thus, novel vaccine strains need to be evaluated for their potential as a vaccine against tuberculosis. We had previously constructed a triple gene mutant of M. tuberculosis (MtbΔmms), having deletions in genes encoding for phosphatases mptpA, mptpB, and sapM that are involved in host-pathogen interaction. Though vaccination with Mtb∆mms strain induced protection in the lungs of guinea pigs, the mutant strain was not able to control the hematogenous spread of the challenge strain to the spleens. Additionally, inoculation with Mtb∆mms resulted in some pathological damage to the spleens in the early phase of infection. In order to overcome the pathology caused by MtbΔmms in the spleens of guinea pigs and also to control the dissemination of the challenge strain, MtbΔmms was genetically modified by disrupting bioA gene to generate MtbΔmmsb strain. Further, in vivo attenuation of MtbΔmmsb was evaluated, and its protective efficacy was assessed against virulent M. tuberculosis challenge in guinea pigs. Our study demonstrates that Mtb∆mmsb mutant was highly attenuated for growth and virulence in guinea pigs. Vaccination with Mtb∆mmsb mutant generated significant protection in comparison to sham-immunized animals at 4 and 12 weeks post-infection in lungs and spleens of the infected animals. Our findings provide evidence that deletion of genes involved in signal transduction and biotin biosynthesis severely attenuates the pathogen and the single immunization with the auxotroph was able to provide significant protection as compared to sham-immunized animals. The protection imparted by Mtb∆mmsb fell short in comparison to the protection observed in BCG-immunized animals. This study nevertheless indicates the importance of attenuated multiple gene deletion mutants of M. tuberculosis in generating protection against tuberculosis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mycobacterium%20tuberculosis" title="Mycobacterium tuberculosis">Mycobacterium tuberculosis</a>, <a href="https://publications.waset.org/abstracts/search?q=BCG" title=" BCG"> BCG</a>, <a href="https://publications.waset.org/abstracts/search?q=Mtb%CE%94mmsb" title=" MtbΔmmsb"> MtbΔmmsb</a>, <a href="https://publications.waset.org/abstracts/search?q=bioA" title=" bioA"> bioA</a>, <a href="https://publications.waset.org/abstracts/search?q=guinea%20pigs" title=" guinea pigs"> guinea pigs</a> </p> <a href="https://publications.waset.org/abstracts/109444/an-attenuated-quadruple-gene-mutant-of-mycobacterium-tuberculosis-imparts-protection-against-tuberculosis-in-guinea-pigs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/109444.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">139</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">8427</span> Determination of Air Quality Index Using Respirable Dust Sampler</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sapan%20Bhatnagar">Sapan Bhatnagar</a>, <a href="https://publications.waset.org/abstracts/search?q=Danish%20Akhtar"> Danish Akhtar</a>, <a href="https://publications.waset.org/abstracts/search?q=Salman%20Ahmed"> Salman Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Asif%20Ekbal"> Asif Ekbal</a>, <a href="https://publications.waset.org/abstracts/search?q=Gufran%20Beig"> Gufran Beig</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Particulates are the solid and liquid droplets present in the atmosphere, they have serious negative effects on human health and environment. PM10 and PM2.5 are so small that they can penetrate deep into our lungs through the respiratory system. Determination of the amount of particulates present in the atmosphere per cubic meter is necessary to monitor, regulate and model atmospheric particulate levels. Air Quality Index is an index tells us how clean or polluted our air is, and what associated health effects might be a concern for us. The AQI focuses on health affects you may experience within a few hours or days after breathing polluted air. The quality rating for each pollutant was calculated. The geometric mean of these quality ratings gives the Air Quality Index. The existing concentrations of pollutants were compared with ambient air quality standards. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20quality%20index" title="air quality index">air quality index</a>, <a href="https://publications.waset.org/abstracts/search?q=particulate" title=" particulate"> particulate</a>, <a href="https://publications.waset.org/abstracts/search?q=respirable%20dust%20sampler" title=" respirable dust sampler"> respirable dust sampler</a>, <a href="https://publications.waset.org/abstracts/search?q=dust%20sampler" title=" dust sampler"> dust sampler</a> </p> <a href="https://publications.waset.org/abstracts/21814/determination-of-air-quality-index-using-respirable-dust-sampler" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21814.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">575</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">8426</span> Effects of Local Decongestive Agents at Trachea and Lungs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sertac%20Arslan">Sertac Arslan</a>, <a href="https://publications.waset.org/abstracts/search?q=Guven%20Guney"> Guven Guney</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayse%20Ipek%20Akyuz%20Unsal"> Ayse Ipek Akyuz Unsal</a>, <a href="https://publications.waset.org/abstracts/search?q=Emre%20Demir"> Emre Demir</a>, <a href="https://publications.waset.org/abstracts/search?q=Buket%20Demirci"> Buket Demirci</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: There is little histologic data concerning effects of nasal decongestants on the respiratory tract. We aimed to put forth the effects of nasal decongestants on the trachea and lower airways of rats. Materials and Methods: Four to six months old 60 male rats were randomly categorized into 6 groups. Experimental drugs were applied to the same nostril of rats twice daily for 8 weeks (Xylometazolin, Benzalkolyum, EDTA, Sorbitol and combined drug solutions). We applied normal saline solution (NaCl %0.9) for the control group. In the end, trachea and both lungs were dissected and kept in formaldehyde for histopathologic evaluation. Results: Inflammation and bronchial edema were most common findings. While all rats in sorbitol group had increased numbers of type 2 pneumocytes; 80% of BAC group had increased numbers of type 2 pneumocytes. Spillover of tracheal epithelium was seen mostly in sorbitol, EDTA and combined drug groups (60%, 87.5%, 50% respectively). Bronchial smooth muscle hypertrophy was seen mostly in BAC and EDTA group (70%, 62.5% respectively). The number of goblet cells showed the significant difference between control-combined drug (p=0.025) and control-BAC (p=0.001) groups. Conclusions: Nasal decongestants can cause permanent changes at lower respiratory tract in addition to changes in upper respiratory tract. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=decongestive%20agents" title="decongestive agents">decongestive agents</a>, <a href="https://publications.waset.org/abstracts/search?q=xylometazoline" title=" xylometazoline"> xylometazoline</a>, <a href="https://publications.waset.org/abstracts/search?q=lung" title=" lung"> lung</a>, <a href="https://publications.waset.org/abstracts/search?q=trachea" title=" trachea"> trachea</a> </p> <a href="https://publications.waset.org/abstracts/88759/effects-of-local-decongestive-agents-at-trachea-and-lungs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88759.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 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