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viability</title> <meta name="description" content="Search results for: viability"> <meta name="keywords" content="viability"> <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="viability"> <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> 721</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: viability</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">721</span> Nonlinear Evolution on Graphs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benniche%20Omar">Benniche Omar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We are concerned with abstract fully nonlinear differential equations having the form y’(t)=Ay(t)+f(t,y(t)) where A is an m—dissipative operator (possibly multi—valued) defined on a subset D(A) of a Banach space X with values in X and f is a given function defined on I×X with values in X. We consider a graph K in I×X. We recall that K is said to be viable with respect to the above abstract differential equation if for each initial data in K there exists at least one trajectory starting from that initial data and remaining in K at least for a short time. The viability problem has been studied by many authors by using various techniques and frames. If K is closed, it is shown that a tangency condition, which is mainly linked to the dynamic, is crucial for viability. In the case when X is infinite dimensional, compactness and convexity assumptions are needed. In this paper, we are concerned with the notion of near viability for a given graph K with respect to y’(t)=Ay(t)+f(t,y(t)). Roughly speaking, the graph K is said to be near viable with respect to y’(t)=Ay(t)+f(t,y(t)), if for each initial data in K there exists at least one trajectory remaining arbitrary close to K at least for short time. It is interesting to note that the near viability is equivalent to an appropriate tangency condition under mild assumptions on the dynamic. Adding natural convexity and compactness assumptions on the dynamic, we may recover the (exact) viability. Here we investigate near viability for a graph K in I×X with respect to y’(t)=Ay(t)+f(t,y(t)) where A and f are as above. We emphasis that the t—dependence on the perturbation f leads us to introduce a new tangency concept. In the base of a tangency conditions expressed in terms of that tangency concept, we formulate criteria for K to be near viable with respect to y’(t)=Ay(t)+f(t,y(t)). As application, an abstract null—controllability theorem is given. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=abstract%20differential%20equation" title="abstract differential equation">abstract differential equation</a>, <a href="https://publications.waset.org/abstracts/search?q=graph" title=" graph"> graph</a>, <a href="https://publications.waset.org/abstracts/search?q=tangency%20condition" title=" tangency condition"> tangency condition</a>, <a href="https://publications.waset.org/abstracts/search?q=viability" title=" viability"> viability</a> </p> <a href="https://publications.waset.org/abstracts/93317/nonlinear-evolution-on-graphs" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93317.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">144</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">720</span> Supplementation of Fig Fruit (Ficus carica linn.) Extract in Extender on Sperm Motility and Viability of Native Chicken Semen after Cooling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Isnaini">N. Isnaini</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Wahjuningsih"> S. Wahjuningsih</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fig fruit is the fruit of a tropical plant with content of flavanoids, vitamins A, C, and E which are antioxidants that effectively prevent and neutralize free radicals. This study was conducted to evaluate the supplementation of fig fruit extract in a physiological NaCl-based diluent on sperm motility and viability of native chicken semen after cooling. Semen was collected from 4 male mature chocks using massage method. Fresh semen evaluated for colour, pH, volume, concentration, mass motility, individual motility, life sperm and sperm abnormality. Semen was diluted with physiological NaCl-based extender supplemented with different levels of fig fruit extract (0, 10, 20 and 30 %) v/v with the ratio of 1 semen: 4 diluter. Semen used had mass motility of 2+ and motility of 70%. Immediately after dilution semen was stored in 3-5 °C and sperm motility and viability percentage were observed at 0, 12 and 24 h. The obtained data were analyze with Analysis of Variant (ANOVA) and Least Significant Difference were determined. The experiment was designed using completely random design (4 treatments and 10 replications). The results showed that the level of fig fruit extract had very significant effect (P < 0,01) on sperm motility and viability percentage in 0, 12 and 24 h of cooling. It can be concluded that the best fig fruit extract level for resulting optimal sperm motility and viability was 10%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chock" title="chock">chock</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title=" antioxidant"> antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=fig%20fruit%20extract" title=" fig fruit extract"> fig fruit extract</a>, <a href="https://publications.waset.org/abstracts/search?q=sperm" title=" sperm"> sperm</a> </p> <a href="https://publications.waset.org/abstracts/39274/supplementation-of-fig-fruit-ficus-carica-linn-extract-in-extender-on-sperm-motility-and-viability-of-native-chicken-semen-after-cooling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39274.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">306</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">719</span> Effect of Capsule Storage on Viability of Lactobacillus bulgaricus and Streptococcus thermophilus in Yogurt Powder</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kanchana%20Sitlaothaworn">Kanchana Sitlaothaworn</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Yogurt capsule was made by mixing 14% w/v of reconstitution of skim milk with 2% FOS. The mixture was fermented by commercial yogurt starter comprising Lactobacillus bulgaricus and Streptococcus thermophilus. These yogurts were made as yogurt powder by freeze-dried. Yogurt powder was put into capsule then stored for 28 days at 4oc. 8ml of commercial yogurt was found to be the most suitable inoculum size in yogurt production. After freeze-dried, the viability of L. bulgaricus and S. thermophilus reduced from 109 to 107 cfu/g. The precence of sucrose cannot help to protect cell from ice crystal formation in freeze-dried process, high (20%) sucrose reduced L. bulgaricus and S. thermophilus growth during fermentation of yogurt. The addition of FOS had reduced slowly the viability of both L. bulgaricus and S. thermophilus similar to control (without FOS) during 28 days of capsule storage. The viable cell exhibited satisfactory viability level in capsule storage (6.7x106cfu/g) during 21 days at 4oC. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=yogurt%20capsule" title="yogurt capsule">yogurt capsule</a>, <a href="https://publications.waset.org/abstracts/search?q=Lactobacillus%20bulgaricus" title=" Lactobacillus bulgaricus"> Lactobacillus bulgaricus</a>, <a href="https://publications.waset.org/abstracts/search?q=Streptococcus%20thermophilus" title=" Streptococcus thermophilus"> Streptococcus thermophilus</a>, <a href="https://publications.waset.org/abstracts/search?q=freeze-drying" title=" freeze-drying"> freeze-drying</a>, <a href="https://publications.waset.org/abstracts/search?q=sucrose" title=" sucrose"> sucrose</a> </p> <a href="https://publications.waset.org/abstracts/10794/effect-of-capsule-storage-on-viability-of-lactobacillus-bulgaricus-and-streptococcus-thermophilus-in-yogurt-powder" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10794.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">327</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">718</span> The Activity of Polish Propolis and Cannabidiol Oil Extracts on Glioblastoma Cell Lines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sylwia%20K.%20Naliwajko">Sylwia K. Naliwajko</a>, <a href="https://publications.waset.org/abstracts/search?q=Renata%20Markiewicz-Zukowska"> Renata Markiewicz-Zukowska</a>, <a href="https://publications.waset.org/abstracts/search?q=Justyna%20Moskwa"> Justyna Moskwa</a>, <a href="https://publications.waset.org/abstracts/search?q=Krystyna%20Gromkowska-Kepka"> Krystyna Gromkowska-Kepka</a>, <a href="https://publications.waset.org/abstracts/search?q=Konrad%20Mielcarek"> Konrad Mielcarek</a>, <a href="https://publications.waset.org/abstracts/search?q=Patryk%20Nowakowski"> Patryk Nowakowski</a>, <a href="https://publications.waset.org/abstracts/search?q=Katarzyna%20Socha"> Katarzyna Socha</a>, <a href="https://publications.waset.org/abstracts/search?q=Anna%20Puscion-Jakubik"> Anna Puscion-Jakubik</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20H.%20Borawska"> Maria H. Borawska</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Glioblastoma (grade IV WHO) is a rapidly progressive brain tumor with very high morbidity and mortality. The vast malignant gliomas are not curable despite the therapy (surgical, radiotherapy, chemotherapy) and patients seek alternative or complementary treatments. Patients often use cannabidiol (CBD) oil as an alternative therapy of glioblastoma. CBD is one of the cannabinoids, an active component of Cannabis sativa. THC (Δ9-tetrahydrocannabinol) can be addictive, and in many countries CBD oil without THC ( < 0,2%) is available. Propolis produced by bees from the resin collected from trees has antiglioma properties in vitro and can be used as a supplement in complementary therapy of gliomas. The aim of this study was to examine the influence of extract from CBD oil in combination with propolis extract on two glioblastoma cell lines. The MTT (Thiazolyl Blue Tetrazolium Bromide) test was used to determine the influence of CBD oil extract and polish propolis extract (PPE) on the viability of glioblastoma cell lines – U87MG and LN18. The cells were incubated (24, 48 and 72 h) with CBD oil extract and PPE. CBD extract was used in concentration 1, 1.5 and 3 µM and PPE in 30 µg/mL. The data were presented compared to the control. The statistical analysis was performed using Statistica v. 13.0 software. CBD oil extract in concentrations 1, 1.5 and 3 µM did not inhibit the viability of U87MG and LN18 cells (viability more than 90% cells compared to the control). There was no dose-response viability, and IC50 value was not recognized. PPE in the concentration of 30 µg/mL time-dependently inhibited the viability of U87MG and LN18 cell line (after 48 h the viability as a percent of the control was 59,7±6% and 57,8±7%, respectively). In a combination of CBD with PPE, the viability of the treated cells was similar to PPE used alone (58,2±7% and 56,5±9%, respectively). CBD oil extract did not show anti-glioma activity and in combination with PPE did not change the activity of PPE. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anticancer" title="anticancer">anticancer</a>, <a href="https://publications.waset.org/abstracts/search?q=cannabidiol" title=" cannabidiol"> cannabidiol</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20line" title=" cell line"> cell line</a>, <a href="https://publications.waset.org/abstracts/search?q=glioblastoma" title=" glioblastoma"> glioblastoma</a> </p> <a href="https://publications.waset.org/abstracts/104232/the-activity-of-polish-propolis-and-cannabidiol-oil-extracts-on-glioblastoma-cell-lines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104232.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">246</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">717</span> In vitro Effects of Amygdalin on the Functional Competence of Rabbit Spermatozoa</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marek%20Halen%C3%A1r">Marek Halenár</a>, <a href="https://publications.waset.org/abstracts/search?q=Eva%20Tvrd%C3%A1"> Eva Tvrdá</a>, <a href="https://publications.waset.org/abstracts/search?q=Tom%C3%A1%C5%A1%20Slanina"> Tomáš Slanina</a>, <a href="https://publications.waset.org/abstracts/search?q=%C4%BDubom%C3%ADr%20Ondru%C5%A1ka"> Ľubomír Ondruška</a>, <a href="https://publications.waset.org/abstracts/search?q=Eduard%20Koles%C3%A1r"> Eduard Kolesár</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Mass%C3%A1nyi"> Peter Massányi</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriana%20Koles%C3%A1rov%C3%A1"> Adriana Kolesárová </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present <em>in vitro</em> study was designed to reveal whether amygdalin (AMG) is able to cause changes to the motility, viability and mitochondrial activity of rabbit spermatozoa. New Zealand White rabbits (n = 10) aged four months were used in the study. Semen samples were collected from each animal and used for the <em>in vitro </em>incubation. The samples were divided into five equal parts and diluted with saline supplemented with 0, 0.5, 1, 2.5 and 5 mg/mL AMG. At times 0h, 3h and 5h spermatozoa motion parameters were assessed using the SpermVision™ computer-aided sperm analysis (CASA) system, cell viability was examined with the metabolic activity (MTT) assay, and the eosin-nigrosin staining technique was used to evaluate the viability of rabbit spermatozoa. All AMG concentrations exhibited stimulating effects on the spermatozoa activity, as shown by a significant preservation of the motility (P<0.05 with respect to 0.5 mg/mL and 1 mg/mL AMG; Time 5 h) and mitochondrial activity (P< 0.05 in case of 0.5 mg/mL AMG; P< 0.01 in case of 1 mg/mL AMG; P < 0.001 with respect to 2.5 mg/mL and 5 mg/mL AMG; Time 5 h). None of the AMG doses supplemented had any significant impact of the spermatozoa viability. In conclusion, the data revealed that short-term co-incubation of spermatozoa with AMG may result in a higher preservation of the sperm structural integrity and functional activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=amygdalin" title="amygdalin">amygdalin</a>, <a href="https://publications.waset.org/abstracts/search?q=CASA" title=" CASA"> CASA</a>, <a href="https://publications.waset.org/abstracts/search?q=mitochondrial%20activity" title=" mitochondrial activity"> mitochondrial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=motility" title=" motility"> motility</a>, <a href="https://publications.waset.org/abstracts/search?q=rabbits" title=" rabbits"> rabbits</a>, <a href="https://publications.waset.org/abstracts/search?q=spermatozoa" title=" spermatozoa"> spermatozoa</a>, <a href="https://publications.waset.org/abstracts/search?q=viability" title=" viability"> viability</a> </p> <a href="https://publications.waset.org/abstracts/55018/in-vitro-effects-of-amygdalin-on-the-functional-competence-of-rabbit-spermatozoa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55018.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">330</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">716</span> Inductions of CaC₂ on Sperm Morphology and Viability of the Albino Mice (Mus musculus)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dike%20H.%20Ogbuagu">Dike H. Ogbuagu</a>, <a href="https://publications.waset.org/abstracts/search?q=Etsede%20J.%20Oritsematosan"> Etsede J. Oritsematosan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work investigated possible inductions of CaC₂, often misused by fruit vendors to stimulate artificial ripening, on mammalian sperm morphology and viability. Thirty isogenic strains of male albino mice, Mus musculus (age≈ 8weeks; weight= 32.5±2.0g) were acclimatized (ambient temperature 28.0±1.0°C) for 2 weeks and fed standard growers mash and water ad libutum. They were later exposed to graded toxicant concentrations (w/w) of 2.5000, 1.2500, 0.6250, and 0.3125% in 4 cages. A control cage was also established. After 5 weeks, 3 animals from each cage were sacrificed by cervical dislocation and the cauda epididymis excised. Sperm morphology and viability were determined by microscopic procedures. The ANOVA, means plots, Student’s t-test and variation plots were used to analyze data. The common abnormalities observed included Double Head, Pin Head, Knobbed Head, No Tail and With Hook. The higher toxicant concentrations induced significantly lower body weights [F(829.899) ˃ Fcrit(4.19)] and more abnormalities [F(26.52) ˃ Fcrit(4.00)] at P˂0.05. Sperm cells in the control setup were significantly more viable than those in the 0.625% (t=0.005) and 2.500% toxicant doses (t=0.018) at the 95% confidence limit. CaC₂ appeared to induced morphological abnormalities and reduced viability in sperm cells of M. musculus. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20ripening" title="artificial ripening">artificial ripening</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20carbide" title=" calcium carbide"> calcium carbide</a>, <a href="https://publications.waset.org/abstracts/search?q=fruit%20vendors" title=" fruit vendors"> fruit vendors</a>, <a href="https://publications.waset.org/abstracts/search?q=sperm%20morphology" title=" sperm morphology"> sperm morphology</a>, <a href="https://publications.waset.org/abstracts/search?q=sperm%20viability" title=" sperm viability"> sperm viability</a> </p> <a href="https://publications.waset.org/abstracts/43338/inductions-of-cac2-on-sperm-morphology-and-viability-of-the-albino-mice-mus-musculus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43338.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">222</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">715</span> Typical Emulsions as Probiotic Food Carrier: Effect of Cells Position on Its Viability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mengfan%20Li">Mengfan Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Filip%20Van%20Bockstaele"> Filip Van Bockstaele</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenyong%20Lou"> Wenyong Lou</a>, <a href="https://publications.waset.org/abstracts/search?q=Frank%20Devlighere"> Frank Devlighere</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The development of probiotics-encapsulated emulsions that maintain the viability of probiotics during processing, storage and human gastrointestinal (GI) tract environment receives great scientific and commercial interest. In this study, typical W/O and O/W emulsions with and without oil gelation were used to encapsulate L. plantarum. The effects of emulsion types on the viability of L. plantarum during storage and GI tract were investigated. Besides, the position of L. plantarum in emulsion system and its number of viable cells when threating by adverse environment was correlated in order to figure out which type of emulsion is more suitable as food carrier for probiotics encapsulation and protection. As a result, probiotics tend to migrate from oil to water phase due to the natural hydrophilicity; however, it’s harmful for cells viability when surrounding by water for a long time. Oil gelation in emulsions is one of the promising strategies for inhibiting the cells mobility and decreasing the contact with adverse factors (e.g., water, exogenous enzymes and gastric acid), thus enhancing the number of viable cells that enough to exert its beneficial effects in host. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=emulsion" title="emulsion">emulsion</a>, <a href="https://publications.waset.org/abstracts/search?q=gelation" title=" gelation"> gelation</a>, <a href="https://publications.waset.org/abstracts/search?q=encapsulation" title=" encapsulation"> encapsulation</a>, <a href="https://publications.waset.org/abstracts/search?q=probiotics" title=" probiotics"> probiotics</a> </p> <a href="https://publications.waset.org/abstracts/165145/typical-emulsions-as-probiotic-food-carrier-effect-of-cells-position-on-its-viability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165145.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">108</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">714</span> Comparative Evaluation of Different Extenders and Sperm Protectors to Keep the Spermatozoa Viable for More than 24 Hours</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Raseona">A. M. Raseona</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20M.%20Barry"> D. M. Barry</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20L.%20Nedambale"> T. L. Nedambale</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Preservation of semen is an important process to ensure that semen quality is sufficient for assisted reproductive technology. This study evaluated the effectiveness of different extenders to preserve Nguni bull semen stored at controlled room temperature 24 °C for three days, as an alternative to frozen-thawed semen straws used for artificial insemination. Semen samples were collected from two Nguni bulls using an electro-ejaculator and transported to the laboratory for evaluation. Pooled semen was aliquot into three extenders Triladyl, Ham’s F10 and M199 at a dilution ratio of 1:4 then stored at controlled room temperature 24 °C. Sperm motility was analysed after 0, 24, 48 and 72 hours. Morphology and viability were analysed after 72 hours. The study was replicated four times and data was analysed by analysis of variance (ANOVA). Triladyl showed higher viability percentage and consistent total motility for three days. Ham’s F10 showed higher progressive motility compared to the other extenders. There was no significant difference in viability between Ham’s F10 and M199. No significant difference was also observed in total abnormality between the two Nguni bulls. In conclusion, Nguni semen can be preserved in Triladyl or Ham’s F10 and M199 culture media stored at 24 °C and stay alive for three days. Triladyl proved to be the best extender showing high viability and consistency in total motility as compared to Ham’s F10 and M199. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bull%20semen" title="bull semen">bull semen</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20insemination" title=" artificial insemination"> artificial insemination</a>, <a href="https://publications.waset.org/abstracts/search?q=Triladyl" title=" Triladyl"> Triladyl</a>, <a href="https://publications.waset.org/abstracts/search?q=Ham%E2%80%99s%20F10" title=" Ham’s F10"> Ham’s F10</a>, <a href="https://publications.waset.org/abstracts/search?q=M199" title=" M199"> M199</a>, <a href="https://publications.waset.org/abstracts/search?q=viability" title=" viability"> viability</a> </p> <a href="https://publications.waset.org/abstracts/28623/comparative-evaluation-of-different-extenders-and-sperm-protectors-to-keep-the-spermatozoa-viable-for-more-than-24-hours" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28623.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">500</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">713</span> Design of 3D Bioprinted Scaffolds for Cartilage Regeneration</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gloria%20Pinilla">Gloria Pinilla</a>, <a href="https://publications.waset.org/abstracts/search?q=Jose%20Manuel%20Baena"> Jose Manuel Baena</a>, <a href="https://publications.waset.org/abstracts/search?q=Patricia%20%20G%C3%A1lvez-Mart%C3%ADn"> Patricia Gálvez-Martín</a>, <a href="https://publications.waset.org/abstracts/search?q=Juan%20Antonio%20Marchad"> Juan Antonio Marchad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cartilage is a dense connective tissue with limited self-repair properties. Currently, the therapeutic use of autologous or allogenic chondrocytes makes up an alternative therapy to the pharmacological treatment. The design of a bioprinted 3D cartilage with chondrocytes and biodegradable biomaterials offers a new therapeutic alternative able of bridging the limitations of current therapies in the field. We have developed an enhanced printing processes-Injection Volume Filling (IVF) to increase the viability and survival of the cells when working with high-temperature thermoplastics without the limitation of the scaffold geometry in contact with cells. We have demonstrated the viability of the printing process using chondrocytes for cartilage regeneration. This development will accelerate the clinical uptake of the technology and overcomes the current limitation when using thermoplastics as scaffolds. An alginate-based hydrogel combined with human chondrocytes (isolated from osteoarthritis patients) was formulated as bioink-A and the polylactic acid as bioink-B. The bioprinting process was carried out with the REGEMAT V1 bioprinter (Regemat 3D, Granada-Spain) through a IVF. The printing capacity of the bioprinting plus the viability and cell proliferation of bioprinted chondrociytes was evaluated after five weeks by confocal microscopy and Alamar Blue Assay (Biorad). Results showed that the IVF process does not decrease the cell viability of the chondrocytes during the printing process as the cells do not have contact with the thermoplastic at elevated temperatures. The viability and cellular proliferation of the bioprinted artificial 3D cartilage increased after 5 weeks. In conclusion, this study demonstrates the potential use of Regemat V1 for 3D bioprinting of cartilage and the viability of bioprinted chondrocytes in the scaffolds for application in regenerative medicine. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cartilage%20regeneration" title="cartilage regeneration">cartilage regeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=bioprinting" title=" bioprinting"> bioprinting</a>, <a href="https://publications.waset.org/abstracts/search?q=bioink" title=" bioink"> bioink</a>, <a href="https://publications.waset.org/abstracts/search?q=scaffold" title=" scaffold"> scaffold</a>, <a href="https://publications.waset.org/abstracts/search?q=chondrocyte" title=" chondrocyte"> chondrocyte</a> </p> <a href="https://publications.waset.org/abstracts/71676/design-of-3d-bioprinted-scaffolds-for-cartilage-regeneration" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71676.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">313</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">712</span> In vitro Study on Characterization and Viability of Vero Cell Lines after Supplementation with Porcine Follicular Fluid Proteins in Culture Medium </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mayuva%20Youngsabanant">Mayuva Youngsabanant</a>, <a href="https://publications.waset.org/abstracts/search?q=Suphaphorn%20Rabiab"> Suphaphorn Rabiab</a>, <a href="https://publications.waset.org/abstracts/search?q=Hatairuk%20Tungkasen"> Hatairuk Tungkasen</a>, <a href="https://publications.waset.org/abstracts/search?q=Nongnuch%20Gumlungpat"> Nongnuch Gumlungpat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mayuree%20Pumipaiboon"> Mayuree Pumipaiboon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The porcine follicular fluid proteins (pFF) of healthy small size ovarian follicles (1-3 mm in diameters) of Large White pig ovaries were collected by sterile technique. They were used for testing the effect on cell viability and characterization of Vero cell lines using MTT assay. Two hundred microliter of round shape Vero cell lines were culture in 96 well plates with DMEM for 24 h. After that, they were attachment to substrate and some changed into fibroblast shape and spread over the surface after culture for 48 h. Then, Vero cell lines were treated with pFF at concentration of 2, 4, 20, 40, 200, 400, 500, and 600 µg proteins/mL for 24 h. Yields of the best results were analyzed by using one-way ANOVA. MTT assay reviewed an increasing in percentage of viability of Vero cell lines indicated that at concentration of 400-600 µg proteins/mL showed higher percentage of viability (115.64 ± 6.95, 106.91 ± 5.27 and 116.73 ± 20.15) than control group. They were significantly different from the control group (p < 0.05) but lower than the positive control group (DMEM with 10% heat treated fetal bovine serum). Cell lines showed normal character in fibroblast elongate shape after treated with pFF except in high concentration of pFF. This result implies that pFF of small size ovarian follicle at concentration of 400-600 µg proteins/mL could be optimized concentration for using as a supplement in Vero cell line culture medium to promote cell viability instead of growth hormone from fetal bovine serum. This merit could be applied in other cell biotechnology researches. Acknowledgements: This work was funded by a grant from Silpakorn University and Faculty of Science, Silpakorn University, Thailand. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cell%20viability" title="cell viability">cell viability</a>, <a href="https://publications.waset.org/abstracts/search?q=porcine%20follicular%20fluid" title=" porcine follicular fluid"> porcine follicular fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=MTT%20assay" title=" MTT assay"> MTT assay</a>, <a href="https://publications.waset.org/abstracts/search?q=Vero%20cell%20line" title=" Vero cell line"> Vero cell line</a> </p> <a href="https://publications.waset.org/abstracts/106426/in-vitro-study-on-characterization-and-viability-of-vero-cell-lines-after-supplementation-with-porcine-follicular-fluid-proteins-in-culture-medium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106426.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">133</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">711</span> In vitro Effects of Berberine on the Vitality and Oxidative Profile of Bovine Spermatozoa </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eva%20Tvrd%C3%A1">Eva Tvrdá</a>, <a href="https://publications.waset.org/abstracts/search?q=Hana%20Greifov%C3%A1"> Hana Greifová</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Ivani%C4%8D"> Peter Ivanič</a>, <a href="https://publications.waset.org/abstracts/search?q=Norbert%20Luk%C3%A1%C4%8D"> Norbert Lukáč </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study was to evaluate the dose- and time-dependent <em>in vitro</em> effects of berberine (BER), a natural alkaloid with numerous biological properties on bovine spermatozoa during three time periods (0 h, 2 h, 24 h). Bovine semen samples were diluted and cultivated in physiological saline solution containing 0.5% DMSO together with 200, 100, 50, 10, 5, and 1 μmol/L BER. Spermatozoa motility was assessed using the computer assisted semen analyzer. The viability of spermatozoa was assessed by the metabolic (MTT) assay, production of superoxide radicals was quantified using the nitroblue tetrazolium (NBT) test, and chemiluminescence was used to evaluate the generation of reactive oxygen species (ROS). Cell lysates were prepared and the extent of lipid peroxidation (LPO) was evaluated using the TBARS assay. The results of the movement activity showed a significant increase in the motility during long term cultivation in case of concentrations ranging between 1 and 10 μmol/L BER (P < 0.01; P < 0.001; 24 h). At the same time, supplementation of 1, 5 and 10 μmol/L BER led to a significant preservation of the cell viability (P < 0.001; 24 h). BER addition at a range of 1-50 μmol/L also provided a significantly higher protection against superoxide (P < 0.05) and ROS (P < 0.001; P < 0.01) overgeneration as well as LPO (P < 0.01; P<0.05) after a 24 h cultivation. We may suggest that supplementation of BER to bovine spermatozoa, particularly at concentrations ranging between 1 and 50 μmol/L, may offer protection to the motility, viability and oxidative status of the spermatozoa, particularly notable at 24 h. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=berberine" title="berberine">berberine</a>, <a href="https://publications.waset.org/abstracts/search?q=bulls" title=" bulls"> bulls</a>, <a href="https://publications.waset.org/abstracts/search?q=motility" title=" motility"> motility</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidative%20profile" title=" oxidative profile"> oxidative profile</a>, <a href="https://publications.waset.org/abstracts/search?q=spermatozoa" title=" spermatozoa"> spermatozoa</a>, <a href="https://publications.waset.org/abstracts/search?q=viability" title=" viability"> viability</a> </p> <a href="https://publications.waset.org/abstracts/108980/in-vitro-effects-of-berberine-on-the-vitality-and-oxidative-profile-of-bovine-spermatozoa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108980.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">130</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">710</span> Safety Assessment and Prophylactic Efficacy of Moringa stenopetala Leaf Extract Through Mitigation of Oxidative Stress in BV-2 Microglial Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Stephen%20Adeniyi%20Adefegha">Stephen Adeniyi Adefegha</a>, <a href="https://publications.waset.org/abstracts/search?q=Vitor%20Mostardeiro"> Vitor Mostardeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Vera%20Maria%20Morsch"> Vera Maria Morsch</a>, <a href="https://publications.waset.org/abstracts/search?q=Ademir%20F.%20Morel"> Ademir F. Morel</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivana%20Beatrice%20Manica%20Da%20Cruz"> Ivana Beatrice Manica Da Cruz</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabrina%20Somacal%20Maria%20Rosa%20Chitolina%20Schetinger"> Sabrina Somacal Maria Rosa Chitolina Schetinger</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Moringa stenopetala is often consumed as food and used in folkloric medicine for the management of several diseases. Purpose: This study was set up in order to assess the effect of aqueous extract of Moringa stenopetala on cell viability and oxidative stress biomarkers in BV-2 microglial cells. Aqueous extracts of M. stenopetala were prepared, lyophilized and reconstituted in 0.5% dimethylsulphoxide (DMSO). Cells were treated with M. stenopetala extracts (0.1 - 100 µg/ml) for cell viability and nitric oxide (NO) production tests. However, M. stenopetala extract (50 µg/ml) was used in the treatment of cells for the determination of protein carbonyl content and reactive oxygen species (ROS) level. Incubation of BV-2 microglia cell with M. stenopetala extract maintained cell viability, diminished NO and ROS levels, and reduced protein carbonyl contents Chlorogenic acid, rutin, kaempferol and quercetin derivatives were the main phenolic compounds identified in M. stenopetala leaf extract. These phenolic compounds present in M. stenopetala may be responsible for the mitigation of oxidative stress in BV-2 microglial cells. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=oxidative%20stress" title="oxidative stress">oxidative stress</a>, <a href="https://publications.waset.org/abstracts/search?q=BV-2%20microglial%20cell" title=" BV-2 microglial cell"> BV-2 microglial cell</a>, <a href="https://publications.waset.org/abstracts/search?q=Moringa%20stenopetala" title=" Moringa stenopetala"> Moringa stenopetala</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20viability" title=" cell viability"> cell viability</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title=" antioxidant"> antioxidant</a> </p> <a href="https://publications.waset.org/abstracts/157189/safety-assessment-and-prophylactic-efficacy-of-moringa-stenopetala-leaf-extract-through-mitigation-of-oxidative-stress-in-bv-2-microglial-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157189.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">110</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">709</span> Effects of Pre-Storage Invigoration Treatments on Ageing Dendrocalamus hamiltonii Seeds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Geetika%20Richa">Geetika Richa</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20L.%20Sharma"> M. L. Sharma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bamboo as an ancient herbal medicine has been used for thousands of years in Asia and goes by many names such as tabashir, banslochan etc. It is often used for its tonic and astringent properties. Modern analysis of bamboos show high amount of vitamins and minerals which makes them valuable as a curative. Bamboo leaf decoction and young shoots are known as remedy for intestinal worms, healing of ulcers and stomach disorders. Bamboos are known to be propagated by large scale plantations but propagation through seeds occurs very limited as they have very short viability of few months. Seeds loses viability over a period of time even under controlled conditions and important factors that affect seed viability is the decline in reserve food material, decrease in membrane integrity and fall in endogenous level of growth hormones. Invigoration treatments that include hydration, dehydration, incorporation of bioactive chemicals such as growth regulators, nutrients and antioxidants etc. improve the seed performance. Our studies were aimed to determine the most effective invigoration treatments to enhance vigour and viability of seeds by following invigoration treatments, i.e., hardening. Treated seeds were stored at controlled temperature and humidity (in desiccators at 4°C). In hardening, chemicals were applied in 3 different concentrations to three replicates of 10 seeds. Hardening was done withGA3, IAA, (each with concentrations of 10 ppm, 20 ppm and 50 ppm), calcium oxychloride, neem leaf powder and clay (each with concentrations of 2%, 5% and 10%). Statistically all the hardening materials were effective but GA3 50 ppm was the most effective one in maintaining germination percentage and vigour index. Hardening treatments increased the germination percentage of seeds, i.e. 86.2%, over control which showed germination percentage of 80.2%. It was concluded that in order to maintain seed viability during storage for longer period of time, invigoration treatments have been found to be very effective. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=invigoration" title="invigoration">invigoration</a>, <a href="https://publications.waset.org/abstracts/search?q=seed%20quality" title=" seed quality"> seed quality</a>, <a href="https://publications.waset.org/abstracts/search?q=viability" title=" viability"> viability</a>, <a href="https://publications.waset.org/abstracts/search?q=hardening" title=" hardening"> hardening</a>, <a href="https://publications.waset.org/abstracts/search?q=membrane%20integrity" title=" membrane integrity"> membrane integrity</a>, <a href="https://publications.waset.org/abstracts/search?q=decoction" title=" decoction "> decoction </a> </p> <a href="https://publications.waset.org/abstracts/38105/effects-of-pre-storage-invigoration-treatments-on-ageing-dendrocalamus-hamiltonii-seeds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38105.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">708</span> Encapsulation of Probiotic Bacteria in Complex Coacervates </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20A.%20Bosnea">L. A. Bosnea</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Moschakis"> T. Moschakis</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Biliaderis"> C. Biliaderis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Two probiotic strains of Lactobacillus paracasei subsp. paracasei (E6) and Lactobacillus paraplantarum (B1), isolated from traditional Greek dairy products, were microencapsulated by complex coacervation using whey protein isolate (WPI, 3% w/v) and gum arabic (GA, 3% w/v) solutions mixed at different polymer ratio (1:1, 2:1 and 4:1). The effect of total biopolymer concentration on cell viability was assessed using WPI and GA solutions of 1, 3 and 6% w/v at a constant ratio of 2:1. Also, several parameters were examined for optimization of the microcapsule formation, such as inoculum concentration and the effect of ionic strength. The viability of the bacterial cells during heat treatment and under simulated gut conditions was also evaluated. Among the different WPI/GA weight ratios tested (1:1, 2:1, and 4:1), the highest survival rate was observed for the coacervate structures made with the ratio of 2:1. The protection efficiency at low pH values is influenced by both concentration and the ratio of the added biopolymers. Moreover, the inoculum concentration seems to affect the efficiency of microcapsules to entrap the bacterial cells since an optimum level was noted at less than 8 log cfu/ml. Generally, entrapment of lactobacilli in the complex coacervate structure enhanced the viability of the microorganisms when exposed to a low pH environment (pH 2.0). Both encapsulated strains retained high viability in simulated gastric juice (>73%), especially in comparison with non-encapsulated (free) cells (<19%). The encapsulated lactobacilli also exhibited enhanced viability after 10–30 min of heat treatment (65oC) as well as at different NaCl concentrations (pH 4.0). Overall, the results of this study suggest that complex coacervation with WPI/GA has a potential to deliver live probiotics in low pH food systems and fermented dairy products; the complexes can dissolve at pH 7.0 (gut environment), releasing the microbial cells. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=probiotic" title="probiotic">probiotic</a>, <a href="https://publications.waset.org/abstracts/search?q=complex%20coacervation" title=" complex coacervation"> complex coacervation</a>, <a href="https://publications.waset.org/abstracts/search?q=whey" title=" whey"> whey</a>, <a href="https://publications.waset.org/abstracts/search?q=encapsulation" title=" encapsulation"> encapsulation</a> </p> <a href="https://publications.waset.org/abstracts/16064/encapsulation-of-probiotic-bacteria-in-complex-coacervates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16064.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">297</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">707</span> Preparation and Functional Properties of Synbiotic Yogurt Fermented with Lactobacillus brevis PML1 Derived from a Fermented Cereal-Dairy Product</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farideh%20Tabatabei-Yazdi">Farideh Tabatabei-Yazdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Fereshteh%20Falah"> Fereshteh Falah</a>, <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Vasiee"> Alireza Vasiee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays, production of functional foods has become very essential. Inulin is one of the most functional hydrocolloid compounds used in such products. In the present study, the production of a synbiotic yogurt containing 1, 2.5, and 5% (w/v) inulin has been investigated. The yogurt was fermented with Lactobacillus brevis PML1 derived from Tarkhineh, an Iranian cereal-dairy fermented food. Furthermore, the physicochemical properties, antioxidant activity, sensory attributes, and microbial viability properties were investigated on the 0th, 7th, and 14th days of storage after fermentation. The viable cells of L. brevis PML1 reached 108 CFU/g, and the product resisted to simulated digestive juices. Moreover, the synbiotic yogurt impressively increased the production of antimicrobial compounds and had the most profound antimicrobial effect on S. typhimurium. The physiochemical properties were in the normal range, and the fat content of the synbiotic yogurt was reduced remarkably. The antioxidant capacity of the fermented yogurt was significantly increased (p<0:05), which was equal to those of DPPH (69:18±1:00%) and BHA (89:16±2:00%). The viability of L. brevis PML1 was increased during storage. Sensory analysis showed that there were significant differences in terms of the impressive parameters between the samples and the control (p<0:05). Addition of 2.5% inulin not only improved the physical properties but also retained the viability of the probiotic after 14 days of storage, in addition to the viability of L. brevis with a viability count above 6 log CFU/g in the yogurt. Therefore, a novel synbiotic product containing L. brevis PML1, which can exert the desired properties, can be used as a suitable carrier for the delivery of the probiotic strain, exerting its beneficial health effects. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=functional%20food" title="functional food">functional food</a>, <a href="https://publications.waset.org/abstracts/search?q=lactobacillus%20brevis" title=" lactobacillus brevis"> lactobacillus brevis</a>, <a href="https://publications.waset.org/abstracts/search?q=symbiotic%20yogurt" title=" symbiotic yogurt"> symbiotic yogurt</a>, <a href="https://publications.waset.org/abstracts/search?q=physiochemical%20properties" title=" physiochemical properties"> physiochemical properties</a> </p> <a href="https://publications.waset.org/abstracts/150723/preparation-and-functional-properties-of-synbiotic-yogurt-fermented-with-lactobacillus-brevis-pml1-derived-from-a-fermented-cereal-dairy-product" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150723.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">91</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">706</span> Effect of Surfactant Level of Microemulsions and Nanoemulsions on Cell Viability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sonal%20Gupta">Sonal Gupta</a>, <a href="https://publications.waset.org/abstracts/search?q=Rakhi%20Bansal"> Rakhi Bansal</a>, <a href="https://publications.waset.org/abstracts/search?q=Javed%20Ali"> Javed Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Reema%20Gabrani"> Reema Gabrani</a>, <a href="https://publications.waset.org/abstracts/search?q=Shweta%20Dang"> Shweta Dang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nanoemulsions (NEs) and microemulsions (MEs) have been an attractive tool for encapsulation of both hydrophilic and lipophillic actives. Both these systems are composed of oil phase, surfactant, co-surfactant and aqueous phase. Depending upon the application and intended use, both oil-in-water and water-in-oil emulsions can be designed. NEs are fabricated using high energy methods employing less percentage of surfactant as compared to MEs which are self assembled drug delivery systems. Owing to the nanometric size of the droplets these systems have been widely used to enhance solubility and bioavailability of natural as well as synthetic molecules. The aim of the present study is to assess the effect of % age of surfactants on cell viability of Vero cells (African Green Monkeys’ Kidney epithelial cells) via MTT assay. Green tea catechin (Polyphenon 60) loaded ME employing low energy vortexing and NE employing high energy ultrasonication were prepared using same excipients (labrasol as oil, cremophor EL as surfactant and glycerol as co-surfactant) however, the % age of oil and surfactant needed to prepare the ME was higher as compared to NE. These formulations along with their excipients (oilME=13.3%, SmixME=26.67%; oilNE=10%, SmixNE=13.52%) were added to Vero cells for 24 hrs. The tetrazolium dye, 3-(4,5-dimethylthia/ol-2-yl)-2,5-diphi-iiyltclrazolium bromide (MTT), is reduced by live cells and this reaction is used as the end point to evaluate the cytoxicity level of a test formulation. Results of MTT assay indicated that oil at different percentages exhibited almost equal cell viability (oilME ≅ oilNE) while surfactant mixture had a significant difference in the cell viability values (SmixME < SmixNE). Polyphenon 60 loaded ME and its PlaceboME showed higher toxicity as compared to Polyphenon 60 loaded NE and its PlaceboNE that can be attributed to the higher concentration of surfactants present in MEs. Another probable reason for high % cell viability of Polyphenon 60 loaded NE might be due to the effective release of Polyphenon 60 from NE formulation that helps in the sustenance of Vero cells. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cell%20viability" title="cell viability">cell viability</a>, <a href="https://publications.waset.org/abstracts/search?q=microemulsion" title=" microemulsion"> microemulsion</a>, <a href="https://publications.waset.org/abstracts/search?q=MTT" title=" MTT"> MTT</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoemulsion" title=" nanoemulsion"> nanoemulsion</a>, <a href="https://publications.waset.org/abstracts/search?q=surfactants" title=" surfactants"> surfactants</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasonication" title=" ultrasonication"> ultrasonication</a> </p> <a href="https://publications.waset.org/abstracts/14115/effect-of-surfactant-level-of-microemulsions-and-nanoemulsions-on-cell-viability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14115.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">436</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">705</span> A 3D Cell-Based Biosensor for Real-Time and Non-Invasive Monitoring of 3D Cell Viability and Drug Screening</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yuxiang%20Pan">Yuxiang Pan</a>, <a href="https://publications.waset.org/abstracts/search?q=Yong%20Qiu"> Yong Qiu</a>, <a href="https://publications.waset.org/abstracts/search?q=Chenlei%20Gu"> Chenlei Gu</a>, <a href="https://publications.waset.org/abstracts/search?q=Ping%20Wang"> Ping Wang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the past decade, three-dimensional (3D) tumor cell models have attracted increasing interest in the field of drug screening due to their great advantages in simulating more accurately the heterogeneous tumor behavior in vivo. Drug sensitivity testing based on 3D tumor cell models can provide more reliable in vivo efficacy prediction. The gold standard fluorescence staining is hard to achieve the real-time and label-free monitoring of the viability of 3D tumor cell models. In this study, micro-groove impedance sensor (MGIS) was specially developed for dynamic and non-invasive monitoring of 3D cell viability. 3D tumor cells were trapped in the micro-grooves with opposite gold electrodes for the in-situ impedance measurement. The change of live cell number would cause inversely proportional change to the impedance magnitude of the entire cell/matrigel to construct and reflect the proliferation and apoptosis of 3D cells. It was confirmed that 3D cell viability detected by the MGIS platform is highly consistent with the standard live/dead staining. Furthermore, the accuracy of MGIS platform was demonstrated quantitatively using 3D lung cancer model and sophisticated drug sensitivity testing. In addition, the parameters of micro-groove impedance chip processing and measurement experiments were optimized in details. The results demonstrated that the MGIS and 3D cell-based biosensor and would be a promising platform to improve the efficiency and accuracy of cell-based anti-cancer drug screening in vitro. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=micro-groove%20impedance%20sensor" title="micro-groove impedance sensor">micro-groove impedance sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=3D%20cell-based%20biosensors" title=" 3D cell-based biosensors"> 3D cell-based biosensors</a>, <a href="https://publications.waset.org/abstracts/search?q=3D%20cell%20viability" title=" 3D cell viability"> 3D cell viability</a>, <a href="https://publications.waset.org/abstracts/search?q=micro-electromechanical%20systems" title=" micro-electromechanical systems"> micro-electromechanical systems</a> </p> <a href="https://publications.waset.org/abstracts/109602/a-3d-cell-based-biosensor-for-real-time-and-non-invasive-monitoring-of-3d-cell-viability-and-drug-screening" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/109602.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">128</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">704</span> Evaluation Framework for Investments in Rail Infrastructure Projects</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dimitrios%20J.%20Dimitriou">Dimitrios J. Dimitriou</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20F.%20Sartzetaki"> Maria F. Sartzetaki</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Transport infrastructures are high-cost, long-term investments that serve as vital foundations for the operation of a region or nation and are essential to a country’s or business’s economic development and prosperity, by improving well-being and generating jobs and income. The development of appropriate financing options is of key importance in the decision making process in order develop viable transport infrastructures. The development of transport infrastructure has increasingly been shifting toward alternative methods of project financing such as Public Private Partnership (PPPs) and hybrid forms. In this paper, a methodological decision-making framework based on the evaluation of the financial viability of transportation infrastructure for different financial schemes is presented. The framework leads to an assessment of the financial viability which can be achieved by performing various financing scenarios analyses. To illustrate the application of the proposed methodology, a case study of rail transport infrastructure financing scenario analysis in Greece is developed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rail%20transport%20infrastructure" title="rail transport infrastructure">rail transport infrastructure</a>, <a href="https://publications.waset.org/abstracts/search?q=financial%20viability" title=" financial viability"> financial viability</a>, <a href="https://publications.waset.org/abstracts/search?q=scenario%20analysis" title=" scenario analysis"> scenario analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=rail%20project%20feasibility" title=" rail project feasibility"> rail project feasibility</a> </p> <a href="https://publications.waset.org/abstracts/71639/evaluation-framework-for-investments-in-rail-infrastructure-projects" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71639.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">278</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">703</span> Comparison the Effect of Different Pretreatments on Ethanol Production from Lemon Peel (Citrus × latifolia)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zohreh%20Didar%20Yaser">Zohreh Didar Yaser</a>, <a href="https://publications.waset.org/abstracts/search?q=Zanganeh%20Asadabadi"> Zanganeh Asadabadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this work is to open up the structure of lemon peel (Citrus × latifolia) with mild pretreatments. The effects of autoclave, microwave and ultrasonic with or without acid addition were investigated on the amount of glucose, soluble and insoluble lignin, furfural, yeast viability and bioethanol. The finding showed that autoclave- acid impregnated sample, has the highest glucose release from lignocellulose materials (14.61 and 14.95 g/l for solvent exposed and untreated sample, respectively) whereas at control sample glucose content was at its minimal level. Pretreatments cause decrease on soluble and insoluble lignin and the highest decrease cause by autoclave following with microwave and ultrasonic pretreatments (p≤5%). Moderate increase on furfural was seen at pretreated samples than control ones. Also, the most yeast viability and bioethanol content was belong to autoclave samples especially acid- impregnated ones (40.33%). Comparison between solvent treated and untreated samples indicated that significant difference was between two tested groups (p≤1%) in terms of lignin, furfural, cell viability and ethanol content but glucose didn’t show significant difference. It imply that solvent extraction don’t influences on glucose release from lignocellulose material of lemon peel but cause enhancement of yeast viability and bioethanol production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bioethanol" title="Bioethanol">Bioethanol</a>, <a href="https://publications.waset.org/abstracts/search?q=Lemon%20peel" title=" Lemon peel"> Lemon peel</a>, <a href="https://publications.waset.org/abstracts/search?q=Pretreatments" title=" Pretreatments"> Pretreatments</a>, <a href="https://publications.waset.org/abstracts/search?q=Solvent%20Extraction" title=" Solvent Extraction "> Solvent Extraction </a> </p> <a href="https://publications.waset.org/abstracts/33373/comparison-the-effect-of-different-pretreatments-on-ethanol-production-from-lemon-peel-citrus-latifolia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33373.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">702</span> Effect of Z-VAD-FMK on in Vitro Viability of Dog Follicles </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Leda%20Maria%20Costa%20Pereira">Leda Maria Costa Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Maria%20Denise%20Lopes"> Maria Denise Lopes</a>, <a href="https://publications.waset.org/abstracts/search?q=Nucharin%20Songsasen"> Nucharin Songsasen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mammalian ovaries contain thousands of follicles that eventually degenerate or die after culture in vitro. Caspase-3 is a key enzyme that regulating cell death. Our objective was to examine the influence of anti-apoptotic drug Z-VAD-FMK (pan-caspase inhibitor) on in vitro viability of dog follicles within the ovarian cortex. Ovaries were obtained from prepubertal (age, 2.5–6 months) and adult (age, 8 months to 2 years) bitches and ovarian cortical fragments were recovered. The cortices were then incubated on 1.5% (w/v) agarose gel blocks within a 24-wells culture plate (three cortical pieces/well) containing Minimum Essential Medium Eagle - Alpha Modification (Alpha MEM) supplemented with 4.2 µg/ml insulin, 3.8 µg/ml transferrin, 5 ng/ml selenium, 2 mM L-glutamine, 100 µg/mL of penicillin G sodium, 100 µg/mL of streptomycin sulfate, 0.05 mM ascorbic acid, 10 ng/mL of FSH and 0.1% (w/v) polyvinyl alcohol in humidified atmosphere of 5% CO2 and 5% O2. The cortices were divided in six treatment groups: 1) 10 ng/mL EGF (EGF V0); 2) 10 ng/mL of EGF plus 1 mM Z-VAD-FMK (EGF V1); 3) 10 ng/mL of EGF and 10 mM Z-VAD-FMK (EGF V10); 4) 1 mM Z-VAD-FMK; 5) 10 mM Z-VAD-FMK and (6) no EGF and Z-VAD-FMK supplementation. Ovarian follicles within the tissues were processed for histology and assessed for follicle density, viability (based on morphology) and diameter immediately after collection (Control) or after 3 or 7 days of in vitro incubation. Comparison among fresh and culture treatment group was performed using ANOVA test. There were no differences (P > 0.05) in follicle density and viability among different culture treatments. However, there were differences in this parameter between culture days. Specifically, culturing tissue for 7 days resulted in significant reduction in follicle viability and density, regardless of treatments. We found a difference in size between culture days when these follicles were cultured using 10 mM Z-VAD-FMK or 10 ng/mL EGF (EGF V0). In sum, the finding demonstrated that Z-VAD-FMK at the dosage used in the present study does not provide the protective effect to ovarian tissue during in vitro culture. Future studies should explore different Z-VAD-FMK dosages or other anti-apoptotic agent, such as surviving in protecting ovarian follicles against cell death. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anti%20apoptotic%20drug" title="anti apoptotic drug">anti apoptotic drug</a>, <a href="https://publications.waset.org/abstracts/search?q=bitches" title=" bitches"> bitches</a>, <a href="https://publications.waset.org/abstracts/search?q=follicles" title=" follicles"> follicles</a>, <a href="https://publications.waset.org/abstracts/search?q=Z-VAD-FMK" title=" Z-VAD-FMK"> Z-VAD-FMK</a> </p> <a href="https://publications.waset.org/abstracts/56568/effect-of-z-vad-fmk-on-in-vitro-viability-of-dog-follicles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56568.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">361</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">701</span> The Cell Viability Study of Extracts of Bark, Flowers, Leaves and Seeds of Indian Dhak Tree, Flame of Forest</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Madhavi%20S.%20Apte">Madhavi S. Apte</a>, <a href="https://publications.waset.org/abstracts/search?q=Milind%20Bhitre"> Milind Bhitre</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In pharmaceutical research and new drug development, medicinal plants have important roles. Similarly, Indian dhak tree belonging to family Fabaceae has been widely used in the traditional Indian medical system of ‘Ayurveda’ for the treatment of a variety of ailments. Hence the cell viability study was undertaken to evaluate and compare the activity of extracts of various parts like flower, bark, leaf, seed by conducting MTT assay method along with other pharmacognostical studies. The methanolic extracts of bark, flowers, leaves, and seeds were used for the study. The cell viability MTT assay was performed using the standard operating procedures. The extracts were dissolved in DMSO and serially diluted with complete medium to get the concentrations range of test concentration. DMSO concentration was kept < 0.1% in all the samples. HUVEC cells maintained in appropriate conditions were seeded in 96 well plates and treated with different concentrations of the test samples and incubated at 37°C, 5% CO₂ for 96 hours. MTT reagent was added to the wells and incubated for 4 hours; the dark blue formazan product formed by the cells was dissolved in DMSO under a safety cabinet and read at 550nm. Percentage inhibitions were calculated and plotted with the concentrations used to calculate the IC50 values. The bark, flower, leaves and seed extracts have shown the cytotoxicity activity and can be further studied for antiangiogenesis activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pharmacognosy" title="pharmacognosy">pharmacognosy</a>, <a href="https://publications.waset.org/abstracts/search?q=Cell%20viability" title=" Cell viability"> Cell viability</a>, <a href="https://publications.waset.org/abstracts/search?q=MTT%20assay" title=" MTT assay"> MTT assay</a>, <a href="https://publications.waset.org/abstracts/search?q=anti-angiogenesis" title=" anti-angiogenesis "> anti-angiogenesis </a> </p> <a href="https://publications.waset.org/abstracts/85741/the-cell-viability-study-of-extracts-of-bark-flowers-leaves-and-seeds-of-indian-dhak-tree-flame-of-forest" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85741.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">295</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">700</span> Assessing the Bioactivity and Cell Viability of Apatite-Wollastonite Glass Ceramics Prepared via Spray Pyrolysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andualem%20Workie">Andualem Workie</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, we examined the sinterability and bioactivity of MgO-SiO₂-P₂O₅-CaO-CaF₂ glass compositions created through spray pyrolysis. We evaluated the bioactivity of the materials by immersing them for varying periods of time in simulated bodily fluid (SBF) and found that bioactivity was related to the sintering temperature and soaking time. The material's pH value during immersion in SBF was within the range of 7.4-8.2, which is below 8.5 and improves compatibility and reduces toxicity in biological applications. We used X-ray diffraction and scanning electron microscopy to determine the phase compositions and morphologies of the samples and found that the 1100°C sintered A-W GC sample exhibited the highest bioactivity after soaking in SBF. This sample was dominated by fluorapatite, wollastonite, and whitlockite crystals scattered throughout the glass matrix. The crystallinity (%) of the A-W GC increased as its bioactivity improved, making it more suitable for use in pharmaceutical applications. We also conducted a cytotoxicity test on A-W GC samples sintered at different temperatures and found that the glass-ceramics were non-toxic to MC3T3-E1 cells at all extraction concentrations, except for those sintered at 700°C at concentrations of 250, 200, and 150 mg/ml where cell viability (%) was below the threshold of 70%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=apatite%20wollastonite%20glass%20ceramics" title="apatite wollastonite glass ceramics">apatite wollastonite glass ceramics</a>, <a href="https://publications.waset.org/abstracts/search?q=bioactivity" title=" bioactivity"> bioactivity</a>, <a href="https://publications.waset.org/abstracts/search?q=calcination" title=" calcination"> calcination</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20viability" title=" cell viability"> cell viability</a> </p> <a href="https://publications.waset.org/abstracts/161946/assessing-the-bioactivity-and-cell-viability-of-apatite-wollastonite-glass-ceramics-prepared-via-spray-pyrolysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161946.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">103</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">699</span> Natural Bio-Active Product from Marine Resources</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Ahmed%20John">S. Ahmed John </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Marine forms-bacteria, actinobacteria, cynobacteria, fungi, microalgae, seaweeds mangroves and other halophytes an extremely important oceanic resources and constituting over 90% of the oceanic biomass. The marine natural products have lead to the discovery of many compounds considered worthy for clinical applications. The marine sources have the highest probability of yielding natural products. Natural derivatives play an important role to prevent the cancer incidences as synthetic drug transformation in mangrove. 28.12% of anticancer compound extracted from the mangroves. Exchocaria agollocha has the anti cancer compounds. The present investigation reveals the potential of the Exchocaria agollocha with biotechnological applications for anti cancer, antimicrobial drug discovery, environmental remediation, and developing new resources for the industrial process. The anti-cancer activity of Exchocaria agollocha was screened from 3.906 to 1000 µg/ml of concentration with the dilution leads to 1:1 to 1:128 following methanol and chloroform extracts. The cell viability in the Exchocaria agollocha was maximum at the lower concentration where as low at the higher concentration of methanol and chloroform extracts when compare to control. At 3.906 concentration, 85.32 and 81.96 of cell viability was found at 1:128 dilution of methanol and chloroform extracts respectively. At the concentration of 31.25 following 1:16 dilution, the cell viability was 65.55 in methanol and 45.55 in chloroform extracts. However, at the higher concentration, the cell viability 22.35 and 8.12 was recorded in the extracts of methanol and chloroform. The cell viability was more in methanol when compare to chloroform extracts at lower concentration. The present findings gives current trends in screening and the activity analysis of metabolites from mangrove resources and to expose the models to bring a new sustain for tackling cancer. Bioactive compounds of Exchocaria agollocha have extensive use in treatment of many diseases and serve as a compound and templates for synthetic modification. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bio-active%20product" title="bio-active product">bio-active product</a>, <a href="https://publications.waset.org/abstracts/search?q=compounds" title=" compounds"> compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20products%20and%20microalgae" title=" natural products and microalgae "> natural products and microalgae </a> </p> <a href="https://publications.waset.org/abstracts/14096/natural-bio-active-product-from-marine-resources" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14096.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">246</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">698</span> Assessing the Viability of Solar Water Pumps Economically, Socially and Environmentally in Soan Valley, Punjab</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zenab%20Naseem">Zenab Naseem</a>, <a href="https://publications.waset.org/abstracts/search?q=Sadia%20Imran"> Sadia Imran</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the key solutions to the climate change crisis is to develop renewable energy resources, such as solar and wind power and biogas. This paper explores the socioeconomic and environmental viability of solar energy, based on a case study of the Soan Valley Development Program. Under this project, local farmers were provided solar water pumps at subsidized rates. These have been functional for the last seven years and have gained popularity among the local communities. The study measures the economic viability of using solar energy in agriculture, based on data from 36 households, of which 12 households each use diesel, electric and solar water pumps. Our findings are based on the net present value of each technology type. We also carry out a qualitative assessment of the social impact of solar water pumps relative to diesel and electric pumps. Finally, we conduct an environmental impact assessment, using the lifecycle assessment approach. All three analyses indicate that solar energy is a viable alternative to diesel and electricity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternative%20energy%20sources" title="alternative energy sources">alternative energy sources</a>, <a href="https://publications.waset.org/abstracts/search?q=pollution%20control%20adoption%20and%20costs" title=" pollution control adoption and costs"> pollution control adoption and costs</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20energy%20pumps" title=" solar energy pumps"> solar energy pumps</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title=" sustainable development"> sustainable development</a> </p> <a href="https://publications.waset.org/abstracts/51524/assessing-the-viability-of-solar-water-pumps-economically-socially-and-environmentally-in-soan-valley-punjab" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51524.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">254</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">697</span> Semen Characteristics of Ram Semen Frozen in Straw and Pellet in Three Type of Cold Plates </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdurzag%20Kerban">Abdurzag Kerban</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Preservation of semen had a major impact on sheep genetic breeding. The aim of this study was to evaluate the viability of ram spermatozoa after freezing pellet using cold surfaces made from cattle fat and paraffin wax. A pool of three to four ejaculates were pooled from six rams within a period of ten weeks. Semen was diluted in egg yolk-Tris diluent and processed in 0.25 ml straw and 0.1 ml pellets. Motility was evaluated after dilution, before freezing and post-thawing at 0, 1, 2 and 3 hour incubation. Viability index, acrosome integrity and leakage of intracellular enzymes (aspartat aminotransferase and alkline phosphatase) were also evaluated. Spermatozoa exhibited highly significant percentages of motility at 0, 1, 2 and 3 hours incubation after thawing and viability index in 0.25 ml straw and 0.1 ml pellets on cattle fat plate as compared to ram spermatozoa frozen on paraffin wax. In conclusion, cattle fat plate could be used as the cold surface of choice for freezing ram semen in form of pellets. Such form of frozen semen could be used as efficiently as semen frozen in straws. This simple method is economical with little expensive equipment or supplies, and may provide an efficient technique to cryopreserve ram spermatozoa in developing countries. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ram%20semen" title="ram semen">ram semen</a>, <a href="https://publications.waset.org/abstracts/search?q=freezing" title=" freezing"> freezing</a>, <a href="https://publications.waset.org/abstracts/search?q=straw" title=" straw"> straw</a>, <a href="https://publications.waset.org/abstracts/search?q=pellet" title=" pellet"> pellet</a> </p> <a href="https://publications.waset.org/abstracts/11298/semen-characteristics-of-ram-semen-frozen-in-straw-and-pellet-in-three-type-of-cold-plates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11298.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">592</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">696</span> The Viability of Islamic Finance and Its Impact on Global Financial Stability: Evidence from Practical Implications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Malik%20Shahzad%20Shabbir">Malik Shahzad Shabbir</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Saarim%20Ghazi"> Muhammad Saarim Ghazi</a>, <a href="https://publications.waset.org/abstracts/search?q=Amir%20Khalil%20ur%20Rehman"> Amir Khalil ur Rehman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study examines the factors which influence and contribute towards the financial viability of Islamic finance and its impact on global financial stability. However, the purpose of this paper is to differentiate the practical implications of both Islamic and conventional finance on global financial stability. The Islamic finance is asset backed financing which creates wealth through trade, commerce and believes in risk and return sharing. Islamic banking is asset driven as against to conventional banking which is liability driven. In order to introduce new financial products for market, financial innovation in Islamic finance must be within the Shari’ah parameters that are tested against the ‘Maqasid al-Shari’ah’. Interest-based system leads to income and wealth inequalities and mis-allocation of resources. Moreover, this system has absence of just and equitable aspect of distribution that may exploit either the debt holder or the financier. Such implications are reached to a tipping point that leaves only one choice: change or face continued decline and misery. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=viability" title="viability">viability</a>, <a href="https://publications.waset.org/abstracts/search?q=global%20financial%20stability" title=" global financial stability"> global financial stability</a>, <a href="https://publications.waset.org/abstracts/search?q=practical%20implications" title=" practical implications"> practical implications</a>, <a href="https://publications.waset.org/abstracts/search?q=asset%20driven" title=" asset driven"> asset driven</a>, <a href="https://publications.waset.org/abstracts/search?q=tipping%20point" title=" tipping point"> tipping point</a> </p> <a href="https://publications.waset.org/abstracts/43819/the-viability-of-islamic-finance-and-its-impact-on-global-financial-stability-evidence-from-practical-implications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43819.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">303</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">695</span> Gonadotoxic and Cytotoxic Effect of Induced Obesity via Monosodium Glutamate on Mus musculus Testis Cytoarchitecture and Sperm Parameter</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I.%20Nur%20Hilwani">I. Nur Hilwani</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Nasibah"> R. Nasibah</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Nurdiana"> S. Nurdiana</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20J.%20Norashirene"> M. J. Norashirene</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Impaired fertility may be the result of indirect consumption of anti-fertility agents through food. Monosodium glutamate (MSG) has been widely used as food additive, flavour enhancer and included in vaccines. This study focuses in determining the gonadotoxic and cytotoxic effect of MSG on selected sperm parameters such as sperm viability, sperm membrane integrity and testes cytoarchitecture of male mice via histological examination to determine its effect on spermatogenesis. Twenty-four Mus musculus were randomly divided into 4 groups and given intraperitoneal injections (IP) daily for 14 days of different MSG concentrations at 250, 500 and 1000mg/kg MSG to body weight to induce obesity. Saline was given to control group. Mice were sacrificed and analysis revealed abnormalities in values for sperm parameters and damages to testes cytoarchitecture of male mice. The results recorded decreased viability (p<0.05) and integrity of sperm membrane (p>0.05) with degenerative structures in seminiferous tubule of testes. The results indicated various implications of MSG on male mice reproductive system which has consequences in fertility potential. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sperm%20parameter" title="sperm parameter">sperm parameter</a>, <a href="https://publications.waset.org/abstracts/search?q=testes%20histology" title=" testes histology"> testes histology</a>, <a href="https://publications.waset.org/abstracts/search?q=sperm%20viability" title=" sperm viability"> sperm viability</a>, <a href="https://publications.waset.org/abstracts/search?q=sperm%20membrane%20integrity" title=" sperm membrane integrity"> sperm membrane integrity</a> </p> <a href="https://publications.waset.org/abstracts/13066/gonadotoxic-and-cytotoxic-effect-of-induced-obesity-via-monosodium-glutamate-on-mus-musculus-testis-cytoarchitecture-and-sperm-parameter" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13066.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">347</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">694</span> Effects of SNP in Semen Diluents on Motility, Viability and Lipid Peroxidation of Sperm of Bulls</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Reza%20Khodaei">Hamid Reza Khodaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Behnaz%20Mahdavi"> Behnaz Mahdavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Banitaba"> Alireza Banitaba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitric oxide (NO) plays an important role in all sexual activities of animals. It is made in body from NO syntheses enzyme and L-arginin molecule. NO can make band with sulfur-iron complexes and due to production of steroid sexual hormones related to enzymes which have this complex, NO can change the activity of these enzymes. NO affects many cells including endothelial cells of veins, macrophages and mast cells. These cells are found in testis leydig cells and therefore are important source of NO in testis tissue. Minimizing damages to sperm at the time of sperm freezing and thawing is really important. The goal of this study was to determine the function of NO before freezing and its effects on quality and viability of sperms after thawing and incubation. 4 Holstein bulls were selected from the age of 4, and artificial insemination was done for 3 weeks (2 times a week). Treatments were 0, 10, 50 and 100 nm of sodium nitroprusside (SNP). Data analysis was performed by SAS98 program. Also, mean comparison was done using Duncan's multiple ranges test (P<0.05). Concentrations used were found to increase motility and viability of spermatozoa at 1, 2 and 3 hours after thawing significantly (P<0.05) but there was no significant difference at zero time. SNP levels reduced the amount of lipid peroxidation in sperm membrane, increased acrosome health and improved samples membranes especially in 50 and 100 nm treatments. According to results, adding SNP to semen diluents increases motility and viability of spermatozoa. Also, it reduces lipid peroxidation in sperm membrane and improves sperm function. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sperm%20motility" title="sperm motility">sperm motility</a>, <a href="https://publications.waset.org/abstracts/search?q=nitric%20oxide" title=" nitric oxide"> nitric oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=lipid%20peroxidation" title=" lipid peroxidation"> lipid peroxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=spermatozoa" title=" spermatozoa"> spermatozoa</a> </p> <a href="https://publications.waset.org/abstracts/15112/effects-of-snp-in-semen-diluents-on-motility-viability-and-lipid-peroxidation-of-sperm-of-bulls" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15112.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">657</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">693</span> An Antibacterial Dental Restorative Containing 3,4-Dichlorocrotonolactone: Synthesis, Formulation and Evaluation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dong%20Xie">Dong Xie</a>, <a href="https://publications.waset.org/abstracts/search?q=Leah%20Howard"> Leah Howard</a>, <a href="https://publications.waset.org/abstracts/search?q=Yiming%20Weng"> Yiming Weng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to synthesize and characterize 5-acryloyloxy-3,4-dichlorocrotonolactone (a furanone derivative), use this derivative to modify a dental restorative, and study the effect of the derivative on the antibacterial activity and compressive strength of the formed restorative. In this study, a furanone derivative was synthesized, characterized, and used to formulate a dental restorative. Compressive strength (CS) and S. mutans viability were used to evaluate the mechanical strength and antibacterial activity of the formed restorative. The fabricated restorative specimens were photocured and conditioned in distilled water at 37oC for 24 h, followed by direct testing for CS or/and incubating with S. mutans for 48 h for antibacterial testing. The results show that the modified dental restorative showed a significant antibacterial activity without substantially decreasing the mechanical strengths. With addition of the antibacterial derivative up to 30%, the restorative kept its original CS nearly unchanged but showed a significant antibacterial activity with 68% reduction in the S. mutans viability. Furthermore, the antibacterial function of the modified restorative was not affected by human saliva. The aging study also indicates that the modified restorative may have a long-lasting antibacterial function. It is concluded that this experimental antibacterial restorative may potentially be developed into a clinically attractive dental filling restorative due to its high mechanical strength and antibacterial function. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antibacterial" title="antibacterial">antibacterial</a>, <a href="https://publications.waset.org/abstracts/search?q=dental%20restorative" title=" dental restorative"> dental restorative</a>, <a href="https://publications.waset.org/abstracts/search?q=compressive%20strength" title=" compressive strength"> compressive strength</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20mutans%20viability" title=" S. mutans viability"> S. mutans viability</a> </p> <a href="https://publications.waset.org/abstracts/36235/an-antibacterial-dental-restorative-containing-34-dichlorocrotonolactone-synthesis-formulation-and-evaluation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36235.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">326</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">692</span> Effects of Adding Sodium Nitroprusside in Semen Diluents on Motility, Viability and Lipid Peroxidation of Sperm of Holstein Bulls</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Leila%20Karshenas">Leila Karshenas</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Reza%20Khodaei"> Hamid Reza Khodaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Behnaz%20Mahdavi"> Behnaz Mahdavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We know that nitric oxide (NO) plays an important role in all sexual activities of animals. It is made in body from NO synthase enzyme and L-arginin molecule. NO can bound with sulfur-iron complexes and because production of steroid sexual hormones is related to enzymes which have this complex, NO can change the activity of these enzymes. NO affects many cells including endothelial cells of veins, macrophages and mast cells. These cells are found in testis leydig cells and therefore are important source of NO in testis tissue. Minimizing damages to sperm at the time of sperm freezing and thawing is really important. The goal of this study was to determine the function of NO before freezing and its effects on quality and viability of sperms after thawing and incubation. 4 Holstein bulls were selected from the age of 4, and artificial insemination was done for 3 weeks (2 times a week). Treatments were 0, 10, 50 and 100 nm of sodium nitroprusside (SNP). Data analysis was performed by SAS98 program. Also, mean comparison was done using Duncan's multiple ranges test (P<0.05). Concentrations used was found to increase motility and viability of spermatozoa at 1, 2 and 3 hours after thawing significantly (P<0.05), but there was no significant difference at zero time. SNP levels reduced the amount of lipid peroxidation in sperm membrane, increased acrosome health and improved sample membranes especially in 50 and 100 nm treatments. According to results, adding SNP to semen diluents increases motility and viability of spermatozoa. Also, it reduces lipid peroxidation in sperm membrane and improves sperm function. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sperm%20motility" title="sperm motility">sperm motility</a>, <a href="https://publications.waset.org/abstracts/search?q=nitric%20oxide" title=" nitric oxide"> nitric oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=lipid%20peroxidation" title=" lipid peroxidation"> lipid peroxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=spermatozoa" title=" spermatozoa"> spermatozoa</a> </p> <a href="https://publications.waset.org/abstracts/12296/effects-of-adding-sodium-nitroprusside-in-semen-diluents-on-motility-viability-and-lipid-peroxidation-of-sperm-of-holstein-bulls" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12296.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 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