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activity</title> <meta name="description" content="Search results for: antifeedant activity"> <meta name="keywords" content="antifeedant activity"> <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 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="antifeedant activity"> <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> 6231</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: antifeedant activity</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6231</span> Antifeedant Activity of Ageratum conyzoides (L.) (Asteraceae) Extracts against Diamondback Moth Plutella xylostella (L.) (Lepidoptera: Plutellidae)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tarun%20Kumar%20Vats">Tarun Kumar Vats</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjiv%20Mullick"> Sanjiv Mullick</a>, <a href="https://publications.waset.org/abstracts/search?q=Vagisha%20Rawal"> Vagisha Rawal</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashok%20Kumar%20Singh"> Ashok Kumar Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Antifeedant activity of aqueous, methanolic and hexane crude extracts of powdered leaves of Ageratum conyzoides (L.) was evaluated against the last instar larvae of Plutella xylostella (L.), an oligophagous pest of Crucifer crops. Cauliflower leaf discs treated with different concentrations of extracts were provided to last instar larvae in both no-choice and choice bioassays under the standard laboratory conditions. All three extracts showed antifeedant effects in both the test conditions. In no-choice condition, hexane extract was found to significantly reduce the leaf area consumption at all the tested concentrations (0.5%, 1%, 2%, 3%, 4% and 5%). Also, aqueous and methanol extracts significantly reduced the leaf area consumption at different concentrations (P<0.05). In choice tests, effect of aqueous extract was significantly higher at 3%, 4% and 5% concentrations as compared to control. However, significant activities of methanol and hexane extracts were recorded even at lowest concentrations of 1% (P < 0.05). Complete feeding inhibition of larvae was observed at 2% concentration of hexane extract. Antifeedant index values (AFI) obtained were found to increase in a dose dependent manner, i.e. higher the concentration, more the activity. The results clearly indicate the potential of A. conyzoides extracts for its use in the integrated management of P. xylostella, which will be ecofriendly and sustainable. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ageratum%20conyzoides" title="ageratum conyzoides">ageratum conyzoides</a>, <a href="https://publications.waset.org/abstracts/search?q=plutella%20xylostella" title=" plutella xylostella"> plutella xylostella</a>, <a href="https://publications.waset.org/abstracts/search?q=crucifer" title=" crucifer"> crucifer</a>, <a href="https://publications.waset.org/abstracts/search?q=antifeedant%20index" title=" antifeedant index"> antifeedant index</a> </p> <a href="https://publications.waset.org/abstracts/40819/antifeedant-activity-of-ageratum-conyzoides-l-asteraceae-extracts-against-diamondback-moth-plutella-xylostella-l-lepidoptera-plutellidae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40819.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">357</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">6230</span> Antifeedant Activity of Methanol and Hexane Extracts of Datura Innoxia (Mill.) (Solanaceae) in the Management of Spodoptera Litura (F.) (Lepidoptera: Noctuidae) Larvae </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vagisha%20Rawal">Vagisha Rawal</a>, <a href="https://publications.waset.org/abstracts/search?q=Anupam%20V.%20Sharma"> Anupam V. Sharma</a>, <a href="https://publications.waset.org/abstracts/search?q=Tarun%20Kumar%20Vats"> Tarun Kumar Vats</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashok%20Kumar%20Singh"> Ashok Kumar Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The antifeedant activity of methanol and hexane extract of leaves and seeds of Datura innoxia (Mill.) (Solanaceae) was evaluated against the 5th instar Spodoptera litura (F.) (Lepidoptera: Noctuidae) larvae in choice and no-choice leaf disc bioassays under laboratory conditions. These larvae when given a choice between the ‘control’ and ‘treated’ leaf discs in choice bioassays, consumed significantly (p ˂ 0.05) greater area of the ‘control’ leaf discs compared to those treated with the crude extracts of leaves and seeds of D. innoxia. The Antifeedant Index (AFI) for 5% concentration of the hexane extract of Datura seeds (DSHE) was 43.3% and 38.5% for methanol extract of Datura seeds (DSME). On the other hand, these values were 34.1% for the hexane extract of Datura leaves (DLHE), and 31.0% for the methanol extract of Datura leaves (DLME), respectively. In no-choice bioassays also, there was a significant (p˂0.05) reduction in the larval consumption of ‘treated’ leaf discs compared to the ‘control’ leaf discs. Maximum AFI was recorded at 5% concentration of the extracts of both the leaves and seeds with 47.7% for DSHE against 40.0% (DSME) and 39.4% for DLHE compared with 38.4% (DLME). Moreover, DSHE was found to have the maximum antifeedant effect irrespective of its concentration in comparison to the other crude extracts of leaves or seeds of D. innoxia. It is evident from these results that the crude methanol and hexane extracts of leaves and seeds of D. innoxia exhibited potent antifeedant activity against the 5th instar S. litura larvae. Also, the use of the bioactive compound(s) present in these extracts can prove to be an effective, eco-friendly, viable and sustainable component that can be integrated in IPM programs for the management of this economically important polyphagous insect pest in the Indian subcontinent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antifeedant%20activity" title="antifeedant activity">antifeedant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=antifeedant%20index" title=" antifeedant index"> antifeedant index</a>, <a href="https://publications.waset.org/abstracts/search?q=datura%20innoxia" title=" datura innoxia"> datura innoxia</a>, <a href="https://publications.waset.org/abstracts/search?q=spodoptera%20litura" title=" spodoptera litura"> spodoptera litura</a> </p> <a href="https://publications.waset.org/abstracts/37846/antifeedant-activity-of-methanol-and-hexane-extracts-of-datura-innoxia-mill-solanaceae-in-the-management-of-spodoptera-litura-f-lepidoptera-noctuidae-larvae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37846.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">521</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6229</span> Antifeedant Activity of Plant Extracts on the Spongy Moth (Lymantria dispar) Larvae</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jovana%20M.%20%C4%86irkovi%C4%87">Jovana M. Ćirković</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandar%20M.%20Radojkovi%C4%87"> Aleksandar M. Radojković</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanja%20Z.%20Pera%C4%87"> Sanja Z. Perać</a>, <a href="https://publications.waset.org/abstracts/search?q=Jelena%20N.%20Jovanovi%C4%87"> Jelena N. Jovanović</a>, <a href="https://publications.waset.org/abstracts/search?q=Zorica%20M.%20Brankovi%C4%87"> Zorica M. Branković</a>, <a href="https://publications.waset.org/abstracts/search?q=Slobodan%20D.%20Milanovi%C4%87"> Slobodan D. Milanović</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivan%20Lj.%20Milenkovi%C4%87"> Ivan Lj. Milenković</a>, <a href="https://publications.waset.org/abstracts/search?q=Jovan%20N.%20Dobrosavljevi%C4%87"> Jovan N. Dobrosavljević</a>, <a href="https://publications.waset.org/abstracts/search?q=Nemanja%20V.%20Simovi%C4%87"> Nemanja V. Simović</a>, <a href="https://publications.waset.org/abstracts/search?q=Vanja%20M.%20Tadi%C4%87"> Vanja M. Tadić</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20R.%20%C5%BDugi%C4%87"> Ana R. Žugić</a>, <a href="https://publications.waset.org/abstracts/search?q=Goran%20O.%20Brankovi%C4%87"> Goran O. Branković</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The protection of forests is a national interest and of strategic importance in every country. The spongy moth (Lymantria dispar) is a damaging invasive pest that can weaken and destroy trees by defoliating them. Chemical pesticides commonly used to protect forests against spongy moths not only have a negative impact on terrestrial and aquatic organisms/ecosystems but also often fail to provide significant protection. Therefore, many eco-friendly alternatives have been considered. Within this research, a new biopesticide was developed based on the method of nanoencapsulation of plant extracts in a biopolymer matrix, which provides a slow release of the active components during a substantial time period. The antifeedant activity of plant extracts of common (Fraxinus excelsior L.), manna (F. ornus L.) ash tree, and the tree of heaven Ailanthus altissima (Mill.) was tested on the spongy moth (Lymantria dispar L, 1758) larvae. To test the antifeedant activity of these compounds, the choice and non-choice tests in laboratory conditions for different plant extract concentrations (0.01, 0.1, 0.5, and 1 % v/v) were carried out. In both cases, the best results showed formulations based on the tree of heaven and common ash for the concentration of 1%, with deterioration indices of 163 and 132, respectively. The main benefit of these formulations is their versatility, effectiveness, prolonged effect, and because they are completely environmentally acceptable. Therefore, they can be considered for suppression of the spongy moth in forest ecosystems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ailanthus%20altissima%20%28Mill.%29" title="Ailanthus altissima (Mill.)">Ailanthus altissima (Mill.)</a>, <a href="https://publications.waset.org/abstracts/search?q=Fraxinus%20excelsior%20L." title=" Fraxinus excelsior L."> Fraxinus excelsior L.</a>, <a href="https://publications.waset.org/abstracts/search?q=encapsulation" title=" encapsulation"> encapsulation</a>, <a href="https://publications.waset.org/abstracts/search?q=Lymantria%20dispar" title=" Lymantria dispar"> Lymantria dispar</a> </p> <a href="https://publications.waset.org/abstracts/171972/antifeedant-activity-of-plant-extracts-on-the-spongy-moth-lymantria-dispar-larvae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171972.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">77</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">6228</span> Larvicidal Activity of Azadirachtin and Essential Oils from Thymus capitatus against Prays oleae Bern (Lepidoptera, Yponomeutidae) </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Imen%20Blibech">Imen Blibech</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohiedine%20Ksantini"> Mohiedine Ksantini</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Bouaziz"> Mohamed Bouaziz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Prays oleae is a major insect of olive in the Mediterranean Region. In an effort to find effective and affordable ways of controlling this pest, larvicidal activity of essential oils from Tunisian Thymus capitatus were analyzed in comparison to Azadirachtin, a biologically active compound insecticide. The essential oils were extracted by hydrodistillation, and their chemical composition was determined by gas liquid-chromatography coupled with mass spectroscopy. The main components of chemical components were oxygenated monoterpenes (60.24%). The most abundant oxygenated monoterpenes were carvacrol (54.11%). Monoterpenes hydrocarbons were much more abundant and dominated by the o-cymene (16.68%). Both active compounds of Azadirachtin and Thymus capitatus oil extracts exhibited significant larvicidal activity against P. oleae with LC50 values 81.30 ppm and 52.49 ppm respectively. Dose-response relationships were established with almost 100% mortality when using the highest dose 100 ppm of T. capitatus oil extracts and 80 ppm of Azadirachtin. At the lowest dose (10 ppm), T. capitatus oil extracts and Azadirachtin caused 60% and 76% larval mortality in 48 hours respectively. The larval mortality rate greatly decreased with increases of the dilution of both oil extract compounds. Larval development duration appeared to be prolonged to about 12 days for larvae feeding on control diet. The maximum antifeedant activity was shown by both T. capitatus oil extract and Azadirachtin at LC90 values (47.5 and 50.1 ppm respectively). Tunisian T. capitatus oil extract used at low concentrations could be considered as eco-friendly promising insecticide similar to Azadirachtin that has significant potential for the biological control of P. oleae. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thymus%20capitatus" title="Thymus capitatus">Thymus capitatus</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20composition" title=" chemical composition"> chemical composition</a>, <a href="https://publications.waset.org/abstracts/search?q=azadirachtin" title=" azadirachtin"> azadirachtin</a>, <a href="https://publications.waset.org/abstracts/search?q=larvicidal%20effects" title=" larvicidal effects"> larvicidal effects</a>, <a href="https://publications.waset.org/abstracts/search?q=antifeedant%20activity" title=" antifeedant activity"> antifeedant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=Prays%20oleae" title=" Prays oleae"> Prays oleae</a> </p> <a href="https://publications.waset.org/abstracts/66890/larvicidal-activity-of-azadirachtin-and-essential-oils-from-thymus-capitatus-against-prays-oleae-bern-lepidoptera-yponomeutidae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66890.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">199</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">6227</span> Insecticidal and Antifeedant Activity of Rosemary´s (Rosmarinus Officinalis L.) Different Extracts on Cotton Bollworm Helicoverpa Armigera Hubner</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Monireh%20Movahedi">Monireh Movahedi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Considering undesirable effects of chemical insecticides on environment and human health, most studies focused on insecticidal effects of plant materials. Here, the insecticidal effects of methanol, ethylacetat and n-Hexan extracts of Rosmarinus officinalis L. on larval stage of the cotton bollworm were studied. From each extract, six concentrations, including 5, 10, 20, 40 and 60 mg/ml were prepared and added on larval artificial diet. Moreover, solution of distilled water and tween 2% considered as check treatment. All experiments were done in laboratory temperature of 25±3 ºC, RH =50±10% and natural photoperiod during growing season. Each treatment had four replications and each replication carried out on 10 first instar larva with <24h age. Larval mortality was recorded 3 and 7 days after treat. Based on results, LC50 of methanol, ethylacetat and n-Hexan extracts of R. officinalis were 2.78, 15.87 and 15.70 ml/mg, respectively. On the other hand, antifeedant effect of methanol, ethylacetat and n-Hexan for R. officinalis estimated as 43.13%, 55.11% and 9.19%, respectively. All the obtained results revealed that methanol and ethylacetat extracts of R. officinalis are effective extracts for controlling the cotton bollworm population. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Helocoverpa%20armigera" title="Helocoverpa armigera">Helocoverpa armigera</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosemarinus%20officinalis" title=" Rosemarinus officinalis"> Rosemarinus officinalis</a>, <a href="https://publications.waset.org/abstracts/search?q=extract" title=" extract"> extract</a>, <a href="https://publications.waset.org/abstracts/search?q=methanol" title=" methanol"> methanol</a>, <a href="https://publications.waset.org/abstracts/search?q=ethylacetat" title=" ethylacetat"> ethylacetat</a>, <a href="https://publications.waset.org/abstracts/search?q=n-Hexan" title=" n-Hexan"> n-Hexan</a> </p> <a href="https://publications.waset.org/abstracts/122787/insecticidal-and-antifeedant-activity-of-rosemarys-rosmarinus-officinalis-l-different-extracts-on-cotton-bollworm-helicoverpa-armigera-hubner" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/122787.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">171</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">6226</span> Insecticidal Activity of Piper aduncum Fruit and Tephrosia vogelii Leaf Mixed Formulations against Cabbage Pest Plutella xylostella (L.) (Lepidoptera: Plutellidae) </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eka%20Candra%20Lina">Eka Candra Lina</a>, <a href="https://publications.waset.org/abstracts/search?q=Indah%20Widhianingrum"> Indah Widhianingrum</a>, <a href="https://publications.waset.org/abstracts/search?q=Mita%20Eka%20Putri"> Mita Eka Putri</a>, <a href="https://publications.waset.org/abstracts/search?q=Nur%20Afni%20Evalia"> Nur Afni Evalia</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Makky"> Muhammad Makky</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The emulsifiable concentrate (EC) and wettable powder (WP) of Piper aduncum and Tephrosia vogelii mixed formulations were tested for their activities in the laboratory and their effectiveness in the field against cabbage pest Plutella xyostella. Cabbage leaves soaked in six different mixed formulation concentrations were tested to 2ⁿᵈ instar larvae of P. xylostella with six replications. The observation was conducted everyday until larvae reached 4ᵗʰ instar stage. Correlation between concentration and larvae mortality was analyzed using probit (POLO-PC). The survived larvae was observed by looking at the growth and development, as well as the antifeedant effects. Field efficacy test was based on LC₉₅ value from laboratory test result. The experiment used a randomized block design with 5 treatments and 3 replications to test the populations of P. xylostella larvae and insecticide effectivity. The results showed that the EC and WP mixed formulations showed insecticidal activity against P. xylostella larvae, with LC₉₅ value of 0.35% and 0.37%, respectively. The highest antifeedant effect on EC mixed formulation was 85.01% and WP mixed formulation was 86.23%. Both mixed formulations also slowed the development of larvae when compared with control. Field effication result showed that applications of EC mixed formulation were able to restrain the population of P. xylostella, with effectivity value of 71.06%. Insecticide effectivity value of EC mixed formulation was higher than WP mixed formulation and Bacillus thuringiensis formulation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=botanical%20insecticide" title="botanical insecticide">botanical insecticide</a>, <a href="https://publications.waset.org/abstracts/search?q=efficacy" title=" efficacy"> efficacy</a>, <a href="https://publications.waset.org/abstracts/search?q=emulsifiable%20concentrate%20%28EC%29" title=" emulsifiable concentrate (EC)"> emulsifiable concentrate (EC)</a>, <a href="https://publications.waset.org/abstracts/search?q=Plutella%20xylostella" title=" Plutella xylostella"> Plutella xylostella</a>, <a href="https://publications.waset.org/abstracts/search?q=wettable%20powder%20%28WP%29" title=" wettable powder (WP)"> wettable powder (WP)</a> </p> <a href="https://publications.waset.org/abstracts/86856/insecticidal-activity-of-piper-aduncum-fruit-and-tephrosia-vogelii-leaf-mixed-formulations-against-cabbage-pest-plutella-xylostella-l-lepidoptera-plutellidae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86856.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">242</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">6225</span> Antioxidant Activity of the Algerian Traditional Kefir Supernatant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Amellal-Chibane">H. Amellal-Chibane</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Dehdouh"> N. Dehdouh</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Ait-Kaki"> S. Ait-Kaki</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20%20Halladj"> F. Halladj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Kefir is fermented milk that is produced by adding Kefir grains, consisting of bacteria and yeasts, to milk. The aim of this study was to investigate the antioxidant activity of the kefir supernatant and the raw milk. The Antioxidant activity assays of kefir supernatant and raw milk were evaluated by assessing the DPPH radical-scavenging activity. Kefir supernatant demonstrated high antioxidant activity (87.75%) compared to the raw milk (70.59 %). These results suggest that the Algerian kefir has interesting antioxidant activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activity" title="antioxidant activity">antioxidant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=kefir" title=" kefir"> kefir</a>, <a href="https://publications.waset.org/abstracts/search?q=kefir%20supernatant" title=" kefir supernatant"> kefir supernatant</a>, <a href="https://publications.waset.org/abstracts/search?q=raw%20milk" title=" raw milk "> raw milk </a> </p> <a href="https://publications.waset.org/abstracts/24330/antioxidant-activity-of-the-algerian-traditional-kefir-supernatant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24330.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">506</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">6224</span> Efficiency of Lavandula angustifolia Mill and Zataria multiflora Boiss essential oils on nutritional indices of Tribolium confusum Jacquelin du Val (Col.: Tenebrionidae)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Karim%20Saeidi">Karim Saeidi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most important pests in the warehouses is the flour beetle, Tribolium confusum Jacquelin du Val (Col.: Tenebrionidae). Regarding the high degree of damage of stored product pests and dangerous effects of the chemical control using plant extracts and their components are some of the best approaches to control these pests. Antifeedant activity of plant extracts from Lavandula angustifolia Mill and Zataria multiflora Boiss using hydro-distillation were tested against the flour beetle, Tribolium confusum Jacquelin du Val. The nutritional indices: relative growth rate (RGR), relative consumption rate (RCR), the efficiency of conversion of ingested food (ECI), and feeding deterrence index (FDI) were measured for adult insects. Treatments were evaluated using a flour disk bioassay in the dark; at 25±1ᵒC and 60±5% R. H. Concentrations of 0, 0.1, 0.5, 0.75, 1, 1.5, and 2 μl/disk were prepared from each essential oil. After 72 h, nutritional indices were calculated. L. angustifolia oils were more effective than Z. multiflora oils by significantly decreasing the RGR, RCR, and ECI. Feeding deterrence index (FDI) of L. angustifolia essential oil was increased significantly as essential oil concentration increased. The essential oil of L. angustifolia was more effective on FDI than Z. multiflora in some concentration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=essential%20oil" title="essential oil">essential oil</a>, <a href="https://publications.waset.org/abstracts/search?q=nutritional%20indices" title=" nutritional indices"> nutritional indices</a>, <a href="https://publications.waset.org/abstracts/search?q=Tribolium%20confusum" title=" Tribolium confusum "> Tribolium confusum </a> </p> <a href="https://publications.waset.org/abstracts/21479/efficiency-of-lavandula-angustifolia-mill-and-zataria-multiflora-boiss-essential-oils-on-nutritional-indices-of-tribolium-confusum-jacquelin-du-val-col-tenebrionidae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21479.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">399</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6223</span> Biological Activity of Essential Oils from Salvia nemorosa L.</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdol-Hassan%20Doulah">Abdol-Hassan Doulah </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, antimicrobial activity of essential oil and ethyl acetate and ether extracts of S. nemorosa were examined against some species of bacteria and fungi. The essential oil of the aerial part of S. nemorosa was examined by GC and GC-MS. In the essential oil of S. nemorosa 26 Compounds have been identified. 2-Nonanone (44.09 %), 2-Undecanone (33.79 %), E-Caryophyllene (3.74 %) and 2-Decanone (2.89 %) were the main components of the essential oil. The essential oil analysis showed greatest antimicrobial activity against Staphylococcus epidermidis (5.3 μg/ml) and S. cerevisiae (9.3 μg/ml). The ethyl acetate showed greatest antimicrobial activity against Bacillus subtilis (106.7 μg/ml), Candida albicans (5.3 μg/ml) and ether extract showed greatest antimicrobial activity against Klebseilla pneumoniae (10.7 μg/ml) and Saccharomyces cerevisiae (10.7 μg/ml). In conclusion, we suggest that the antimicrobial activity of S. nemorosa may be due to its content of germacrene and linalool. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antibacterial%20activity" title="antibacterial activity">antibacterial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=antifungal%20activity" title=" antifungal activity"> antifungal activity</a>, <a href="https://publications.waset.org/abstracts/search?q=Salvia%20nemorosa%20L." title=" Salvia nemorosa L."> Salvia nemorosa L.</a>, <a href="https://publications.waset.org/abstracts/search?q=essential%20oils" title=" essential oils"> essential oils</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20activity" title=" biological activity"> biological activity</a> </p> <a href="https://publications.waset.org/abstracts/31804/biological-activity-of-essential-oils-from-salvia-nemorosa-l" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31804.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">493</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6222</span> Prevalence of Physical Activity Levels and Perceived Benefits of and Barriers to Physical Activity among Jordanian Patients with Coronary Heart Disease: A Cross-Sectional Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eman%20Ahmed%20Alsaleh">Eman Ahmed Alsaleh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Many studies published in other countries identified certain perceived benefits and barriers to physical activity among patients with coronary heart disease. Nevertheless, there is no data about the issue relating to Jordanian patients with coronary heart disease. Objective: This study aimed to describe the prevalence of level of physical activity, benefits of and barriers to physical activity as perceived by Jordanian patients with coronary heart disease, and the relationship between physical activity and perceived benefits of and barriers to physical activity. In addition, it focused on examining the influence of selected sociodemographic and health characteristics on physical activity and the perceived benefits of and barriers to physical activity. Methods: A cross-sectional design was performed on a sample of 400 patients with coronary heart disease. They were given a list of perceived benefits and barriers to physical activity and asked to what extent they disagreed or agreed with each. Results: Jordanian patients with coronary heart disease perceived various benefits and barriers to physical activity. Most of these benefits were physiologically related (average mean = 5.7, SD = .7). The most substantial barriers to physical activity as perceived by the patients were: feeling anxiety, not having enough time, lack of interest, bad weather, and feeling of being uncomfortable. Sociodemographic and health characteristics that significantly influenced perceived barriers to physical activity were age, gender, health perception, chest pain frequency, education, job, caring responsibilities, ability to travel alone, smoking, and previous and current physical activity behaviour. Conclusion: This research demonstrates that patients with coronary heart disease have perceived physiological benefits of physical activity, and they have perceived motivational, physical health, and environmental barriers to physical activity, which is significant in developing intervention strategies that aim to maximize patients' participation in physical activity and overcome barriers to physical activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=prevalence" title="prevalence">prevalence</a>, <a href="https://publications.waset.org/abstracts/search?q=coronary%20heart%20disease" title=" coronary heart disease"> coronary heart disease</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20activity" title=" physical activity"> physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=perceived%20barriers" title=" perceived barriers"> perceived barriers</a> </p> <a href="https://publications.waset.org/abstracts/158570/prevalence-of-physical-activity-levels-and-perceived-benefits-of-and-barriers-to-physical-activity-among-jordanian-patients-with-coronary-heart-disease-a-cross-sectional-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158570.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">113</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6221</span> The Investigation of Correlation between Body Composition and Physical Activity in University Students</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ferruh%20Taspinar">Ferruh Taspinar</a>, <a href="https://publications.waset.org/abstracts/search?q=Gulce%20K.%20Seyyar"> Gulce K. Seyyar</a>, <a href="https://publications.waset.org/abstracts/search?q=Gamze%20Kurt"> Gamze Kurt</a>, <a href="https://publications.waset.org/abstracts/search?q=Eda%20O.%20Okur"> Eda O. Okur</a>, <a href="https://publications.waset.org/abstracts/search?q=Emrah%20Afsar"> Emrah Afsar</a>, <a href="https://publications.waset.org/abstracts/search?q=Ismail%20Saracoglu"> Ismail Saracoglu</a>, <a href="https://publications.waset.org/abstracts/search?q=Betul%20Taspinar"> Betul Taspinar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Alterations of physical activity can effect body composition (especially body fat ratio); however body mass index may not sufficient to indicate these minimal differences. The aim of this study was to evaluate the relationship between body composition and physical activity in university students. In this study, 132 university students (mean age; 21.21±1.51) were included. Tanita BC-418 and International Physical Activity Questionnaire (IPAQ) were used to evaluate participants. The correlation between the parameters was analysed via Spearman correlation analysis. Significance level in statistical analyses was accepted is 0.05. The results showed that there was no correlation between body mass index and physical activity (p>0.05). There was a positive correlation between body muscle ratio and physical activity, whereas a negative correlation between body fat ratio and physical activity (p<0.05). This study showed that body fat and muscle ratio affects the level of physical activity in healthy university students. Therefore, we thought that physical activity might reduce effects of the diseases caused by disturbed body composition. Further studies are required to support this idea. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=body%20composition" title="body composition">body composition</a>, <a href="https://publications.waset.org/abstracts/search?q=body%20mass%20index" title=" body mass index"> body mass index</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20activity" title=" physical activity"> physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=university%20student" title=" university student"> university student</a> </p> <a href="https://publications.waset.org/abstracts/60659/the-investigation-of-correlation-between-body-composition-and-physical-activity-in-university-students" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60659.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">355</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6220</span> Chemical Composition and Antioxidant Activity of Methanolic Extract of Spilanthes acmella Murr.</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wanthani%20Paengsri">Wanthani Paengsri</a>, <a href="https://publications.waset.org/abstracts/search?q=Thanyarat%20Chuesaard"> Thanyarat Chuesaard</a>, <a href="https://publications.waset.org/abstracts/search?q=Napapha%20Promsawan"> Napapha Promsawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Spilanthes acmella Murr. was extracted with methanol, yielding methanol crude extract 5.86 %w/w. This study aimed to examine the chemical composition and antioxidant activity of methanolic crude extract. The chemical composition of methanolic crude extract was analyzed by gas chromatography-mass spectrometry (GC-MS). The predominant components were found to be palmitic acid (40.08%), 2-hexadecanoyl glycerol (6.96%) and octadecanoic acid (4.06%). Antioxidant activity was determined using 2,2-diphenyl-1-picryl hydrazyl (DPPH) free radical, for evaluating free radicle scavenging activity. The methanolic extract at 150 µg/mL showed an antioxidant activity with high of radical scavenging activity (75.23%). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activity" title="antioxidant activity">antioxidant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=GC-MS%20analysis" title=" GC-MS analysis"> GC-MS analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=Spilanthes" title=" Spilanthes"> Spilanthes</a>, <a href="https://publications.waset.org/abstracts/search?q=Phak-Kratt%20Hauwaen" title=" Phak-Kratt Hauwaen"> Phak-Kratt Hauwaen</a> </p> <a href="https://publications.waset.org/abstracts/80642/chemical-composition-and-antioxidant-activity-of-methanolic-extract-of-spilanthes-acmella-murr" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80642.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">531</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">6219</span> Polyphenols Content and Antioxidant Activity of Extracts from Peganum harmala Seeds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rachid%20Kacem">Rachid Kacem</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Talbi"> Sara Talbi</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasmina%20Hemissi"> Yasmina Hemissi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sofia%20%20Bouguattoucha"> Sofia Bouguattoucha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the present work is the evaluation of the antioxidant activity of the Peganum harmala (P. harmala) seeds extracts. The antioxidant activity was evaluated by applying two methods, the method of ß-carotene bleaching and DPPH (2, 2-Diphenyl-1-Picryl-Hydrazyl). Using Folin-Ciocalteu assay, these results revealed that the concentration of polyphenols in EthOH E. (122.28 ± 2.24 µg GAE/mg extract) is the highest. The antiradical activity of the P. harmala seeds extracts on DPPH was found to be dose dependent with polyphenols concentration. The E. EthOH extract showed the highest antioxidant activity (IC = 252.10 ± 11.18 μg /ml). The test of β-carotene bleaching indicates that the E. EthOH of P. harmala showed the highest percentage of the antioxidant activity (49.88 %). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activity" title="antioxidant activity">antioxidant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=Peganum%20harmala" title=" Peganum harmala"> Peganum harmala</a>, <a href="https://publications.waset.org/abstracts/search?q=polyphenols" title=" polyphenols"> polyphenols</a>, <a href="https://publications.waset.org/abstracts/search?q=flavonoids" title=" flavonoids "> flavonoids </a> </p> <a href="https://publications.waset.org/abstracts/32852/polyphenols-content-and-antioxidant-activity-of-extracts-from-peganum-harmala-seeds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32852.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">506</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">6218</span> Polyphenol and Antimicrobial Activity in Olive Oil from Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kamel%20Zemour">Kamel Zemour</a>, <a href="https://publications.waset.org/abstracts/search?q=Kada%20Mohamed%20Amine%20Chouhim"> Kada Mohamed Amine Chouhim</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Mairif"> Mohamed Mairif</a>, <a href="https://publications.waset.org/abstracts/search?q=Tadj%20Eddine%20Adda%20Ardjan"> Tadj Eddine Adda Ardjan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Many recent studies show the positive effect of phenolic compounds in olive oil on health. They are known for their biological properties, where they have shown potential activity as an antioxidant, anti-inflammatory, and antimicrobial agents. However, this characteristic is rarely studied in olive oil from different regions of Algeria. Different samples collected from the western region of Algeria were evaluated for their polyphenol content, antioxidant activity, and antimicrobial effect. The obtained results demonstrated that this oil is rich in polyphenols and revealed high antimicrobial activity against Staphylococcus aureus and Escherichia coli. Finally, this study has highlighted the nutritional and pharmaceutical importance of olive oil grown in Algeria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=olive%20oil" title="olive oil">olive oil</a>, <a href="https://publications.waset.org/abstracts/search?q=polyphenols" title=" polyphenols"> polyphenols</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activity" title=" antioxidant activity"> antioxidant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20activity" title=" antimicrobial activity"> antimicrobial activity</a> </p> <a href="https://publications.waset.org/abstracts/159649/polyphenol-and-antimicrobial-activity-in-olive-oil-from-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159649.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">152</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6217</span> The Effect of Solution pH of Chitosan on Antimicrobial Properties of Nylon 6,6 Fabrics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nil%C3%BCfer%20Y%C4%B1ld%C4%B1z%20Varan">Nilüfer Yıldız Varan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The antimicrobial activities of chitosan against various bacteria and fungi are well known, and the antimicrobial activity of chitosan depends on pH. This study investigates the antimicrobial activity at different pH levels. Nylon 6,6 fabrics were treated with different chitosan solutions. Additionally, samples were treated also in basic conditions to see the antimicrobial activities. AATCC Test Method 100 was followed to evaluate the antimicrobial activity using Staphylococcus aureus ATCC 6538 test inoculum. The pH of the chitosan solutions was controlled below 6.5 since chitosan shows its antimicrobial activity only in acidic conditions because of its poor solubility above 6.5. In basic conditions, the samples did not show any antimicrobial activity. It appears from SEM images that the bonded chitosan in the structures exists. In acidic media (ph < 6.5), all samples showed antimicrobial activity. No correlation was found between pH levels and antimicrobial activity in acidic media. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chitosan" title="chitosan">chitosan</a>, <a href="https://publications.waset.org/abstracts/search?q=nylon%206" title=" nylon 6"> nylon 6</a>, <a href="https://publications.waset.org/abstracts/search?q=6" title="6">6</a>, <a href="https://publications.waset.org/abstracts/search?q=crosslinking" title=" crosslinking"> crosslinking</a>, <a href="https://publications.waset.org/abstracts/search?q=pH%20stability" title=" pH stability"> pH stability</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial" title=" antimicrobial"> antimicrobial</a> </p> <a href="https://publications.waset.org/abstracts/74096/the-effect-of-solution-ph-of-chitosan-on-antimicrobial-properties-of-nylon-66-fabrics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74096.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">219</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">6216</span> Immune Activity of Roman Hens as Influenced by the Feed Formulated with Germinated Paddy Rice</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wirot%20Likittrakulwong">Wirot Likittrakulwong</a>, <a href="https://publications.waset.org/abstracts/search?q=Pisit%20Poolprasert"> Pisit Poolprasert</a>, <a href="https://publications.waset.org/abstracts/search?q=Tossaporn%20Incharoen"> Tossaporn Incharoen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Germinated paddy rice (GPR) has the potential to be used as a feed ingredient. However, their properties have not been fully investigated. This paper examined the nutrient digestibility and the relationship to immune activity in Roman hens fed with GPR. It was found that true and apparent metabolizable energy (ME) values of GPR were 3.20 and 3.28 kcal/g air dry, respectively. GPR exhibited high content of phytonutrients, especially GABA. GPR showed similar protein profiles in comparison to non-germinated paddy rice. For immune activity, the feed with GPR enhanced the immune activity of Roman hens under high stocking density stress as evidenced by the activity of superoxide dismutase (SOD) and lysozyme activity. In this study, GPR is proved to be a good source of functional ingredient for chicken feed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=germinated%20paddy%20rice" title="germinated paddy rice">germinated paddy rice</a>, <a href="https://publications.waset.org/abstracts/search?q=nutrient%20digestibility" title=" nutrient digestibility"> nutrient digestibility</a>, <a href="https://publications.waset.org/abstracts/search?q=immune%20activity" title=" immune activity"> immune activity</a>, <a href="https://publications.waset.org/abstracts/search?q=functional%20property" title=" functional property"> functional property</a> </p> <a href="https://publications.waset.org/abstracts/110310/immune-activity-of-roman-hens-as-influenced-by-the-feed-formulated-with-germinated-paddy-rice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110310.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">162</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">6215</span> Isoflavonoid Dynamic Variation in Red Clover Genotypes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andr%C3%A9s%20Quiroz">Andrés Quiroz</a>, <a href="https://publications.waset.org/abstracts/search?q=Emilio%20Hormaz%C3%A1bal"> Emilio Hormazábal</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20Mutis"> Ana Mutis</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20Ortega"> Fernando Ortega</a>, <a href="https://publications.waset.org/abstracts/search?q=Loreto%20M%C3%A9ndez"> Loreto Méndez</a>, <a href="https://publications.waset.org/abstracts/search?q=Leonardo%20Parra"> Leonardo Parra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Red clover root borer, Hylastinus obscurus Marsham (Coleoptera: Curculionidae), is the main insect pest associated to red clover, Trifolium pratense L. An average of 1.5 H. obscurus per plant can cause 5.5% reduction in forage yield in pastures of two to three years old. Moreover, insect attack can reach 70% to 100% of the plants. To our knowledge, there is no a chemical strategy for controlling this pest. Therefore alternative strategies for controlling H. obscurus are a high priority for red clover producers. One of this alternative is related to the study of secondary metabolites involved in intrinsic chemical defenses developed by plants, such as isoflavonoids. The isoflavonoids formononetin and daidzein have elicited an antifeedant and phagostimult effect on H. obscurus respectively. However, we do not know how is the dynamic variation of these isoflavonoids under field conditions. The main objective of this work was to evaluate the variation of the antifeedant isoflavonoids formononetin, the phagostimulant isoflavonoids daidzein, and their respective glycosides over time in different ecotypes of red clover. Fourteen red clover ecotypes (8 cultivars and 6 experimental lines), were collected at INIA-Carillanca (La Araucanía, Chile). These plants were established in October 2015 under irrigated conditions. The cultivars were distributed in a randomized complete block with three replicates. The whole plants were sampled in four times: 15th October 2016, 12th December 2016, 27th January 2017 and 16th March 2017 with sufficient amount of soil to avoid root damage. A polar fraction of isoflavonoid was obtained from 20 mg of lyophilized root tissue extracted with 2 mL of 80% MeOH for 16 h using an orbital shaker in the dark at room temperature. After, an aliquot of 1.4 mL of the supernatant was evaporated, and the residue was resuspended in 300 µL of 45% MeOH. The identification and quantification of isoflavonoid root extracts were performed by the injection of 20 µL into a Shimadzu HPLC equipped with a C-18 column. The sample was eluted with a mobile phase composed of AcOH: H₂O (1:9 v/v) as solvent A and CH₃CN as solvent B. The detection was performed at 260 nm. The results showed that the amount of aglycones was higher than the respective glycosides. This result is according to the biosynthetic pathway of flavonoids, where the formation of glycoside is further to the glycosides biosynthesis. The amount of formononetin was higher than daidzein. In roots, where H. obscurus spent the most part of its live cycle, the highest content of formononetin was found in G 27, Pawera, Sabtoron High, Redqueli-INIA and Superqueli-INIA cvs. (2.1, 1.8, 1.8, 1.6 and 1.0 mg g⁻¹ respectively); and the lowest amount of daidzein were found Superqueli-INIA (0.32 mg g⁻¹) and in the experimental line Sel Syn Int4 (0.24 mg g⁻¹). This ecotype showed a high content of formononetin (0.9 mg g⁻¹). This information, associated with cultural practices, could help farmers and breeders to reduce H. obscurus in grassland, selecting ecotypes with high content of formononetin and low amount of daidzein in the roots of red clover plants. Acknowledgements: FONDECYT 1141245 and 11130715. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=daidzein" title="daidzein">daidzein</a>, <a href="https://publications.waset.org/abstracts/search?q=formononetin" title=" formononetin"> formononetin</a>, <a href="https://publications.waset.org/abstracts/search?q=isoflavonoid%20glycosides" title=" isoflavonoid glycosides"> isoflavonoid glycosides</a>, <a href="https://publications.waset.org/abstracts/search?q=trifolium%20pratense" title=" trifolium pratense"> trifolium pratense</a> </p> <a href="https://publications.waset.org/abstracts/76357/isoflavonoid-dynamic-variation-in-red-clover-genotypes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/76357.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">217</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">6214</span> Activity Data Analysis for Status Classification Using Fitness Trackers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rock-Hyun%20Choi">Rock-Hyun Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Won-Seok%20Kang"> Won-Seok Kang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chang-Sik%20Son"> Chang-Sik Son</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Physical activity is important for healthy living. Recently wearable devices which motivate physical activity are quickly developing, and become cheaper and more comfortable. In particular, fitness trackers provide a variety of information and need to provide well-analyzed, and user-friendly results. In this study, frequency analysis was performed to classify various data sets of Fitbit into simple activity status. The data from Fitbit cloud server consists of 263 subjects who were healthy factory and office workers in Korea from March 7th to April 30th, 2016. In the results, we found assumptions of activity state classification seem to be sufficient and reasonable. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=activity%20status" title="activity status">activity status</a>, <a href="https://publications.waset.org/abstracts/search?q=fitness%20tracker" title=" fitness tracker"> fitness tracker</a>, <a href="https://publications.waset.org/abstracts/search?q=heart%20rate" title=" heart rate"> heart rate</a>, <a href="https://publications.waset.org/abstracts/search?q=steps" title=" steps"> steps</a> </p> <a href="https://publications.waset.org/abstracts/83758/activity-data-analysis-for-status-classification-using-fitness-trackers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/83758.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">384</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">6213</span> Synthesis of [1-(Substituted-Sulfonyl)-Piperidin-4-yl]-(2,4-Difluoro-Phenyl)-Methanone Oximes and Their Biological Activity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Mallesha">L. Mallesha</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20S.%20Karthik"> C. S. Karthik</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Mallu"> P. Mallu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A series of new [1-(substituted-benzoyl)-piperidin-4-yl]-(2,4-difluoro-phenyl)-methanone oxime derivatives, 3(a-f) were synthesized and characterized by different spectral studies. All compounds were evaluated for their in vitro antibacterial activity against bacterial strains. These compounds were screened for their antioxidant activity by DPPH• and Fe2+ chelating assay. Antiproliferative effects were evaluated using the MTT assay method against two human cancer cell lines and one astrocytoma brain tumor cell line. Compound 3b exhibited moderate antibacterial activity when compared with other compounds. All the compounds showed antioxidant activity, where compound 3f was the best radical scavenger and Fe2+ ion scavenger. Compounds, 3b, and 3d showed good activity on all cell lines, whereas the other compounds in the series exhibited moderate activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Piperidine" title="Piperidine">Piperidine</a>, <a href="https://publications.waset.org/abstracts/search?q=antibacterial" title=" antibacterial"> antibacterial</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title=" antioxidant"> antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=antiproliferative" title=" antiproliferative"> antiproliferative</a> </p> <a href="https://publications.waset.org/abstracts/46525/synthesis-of-1-substituted-sulfonyl-piperidin-4-yl-24-difluoro-phenyl-methanone-oximes-and-their-biological-activity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46525.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">412</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">6212</span> A New Phenolic Compound Isolated from Laurus nobilis from Lebanon and Comparison of Antioxidant Activity of Different Parts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Turk%20Ayman">Turk Ayman</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahn%20Jong%20Hoon"> Ahn Jong Hoon</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalife%20K.%20Hala"> Khalife K. Hala</a>, <a href="https://publications.waset.org/abstracts/search?q=Gali-Muhtasib%20Hala"> Gali-Muhtasib Hala</a>, <a href="https://publications.waset.org/abstracts/search?q=Lee%20Mi%20Kyeong"> Lee Mi Kyeong </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Laurus nobilis is an aromatic plant widely distributed in the Mediterranean region. The leaves of this plant are frequently used as a spice and as a traditional medicine for several diseases. In our present study, the methanolic extract of L. nobilis leaves showed antioxidant activity. Chromatographic separations of the EtOAc fraction which had the highest antioxidant activity led to the isolation of 12 compounds. Among them, there was a new phenylpropanoid derivative, which was identified by 1D and 2D NMR experiments, as well as high resolution mass spectrometry. In addition, two major compounds, catechin and epicatechin, which showed strong antioxidant activity may be responsible for the antioxidant activity of L. nobilis leaves. Since different plant parts may contain different types of constituents which contribute to the biological activities, we investigated the antioxidant activity of different parts of L. nobilis such as leaves, stems and fruits. Stems of L. nobilis showed the most potent antioxidant activity, followed by leaves. Further quantitation of total phenol and flavonoids contents revealed a positive correlation between the content of these compounds and antioxidant activity. Taken together, phenolic compounds including flavonoids are responsible for antioxidant activity of L. nobilis. In addition, stem parts of L. nobilis are suggested as good sources for antioxidant activity. Conclusively, L. nobilis might be effective in several free radical mediated diseases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activity" title="antioxidant activity">antioxidant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=different%20parts" title=" different parts"> different parts</a>, <a href="https://publications.waset.org/abstracts/search?q=Laurus%20nobilis" title=" Laurus nobilis"> Laurus nobilis</a>, <a href="https://publications.waset.org/abstracts/search?q=phenolic%20compound" title=" phenolic compound "> phenolic compound </a> </p> <a href="https://publications.waset.org/abstracts/56185/a-new-phenolic-compound-isolated-from-laurus-nobilis-from-lebanon-and-comparison-of-antioxidant-activity-of-different-parts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56185.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">307</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">6211</span> Impacts and Implications: Exploring the Long-Term Health Benefits of Regular Physical Activity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Wahb">Muhammad Wahb</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Physical activity is increasingly recognized as a significant factor in maintaining optimal health and preventing chronic diseases. This research scrutinizes the long-term health benefits of sustained physical activity, employing a systematic review of epidemiological studies and randomized control trials conducted over the past decade. The study illuminates the protective effects of regular physical activity against cardiovascular disease, obesity, diabetes, and mental health disorders, with a special focus on the mechanisms involved. Furthermore, the paper provides insights into how public health initiatives can effectively promote physical activity among diverse populations, contributing to improved community health outcomes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=physical%20activity" title="physical activity">physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=long-term%20health%20benefits" title=" long-term health benefits"> long-term health benefits</a>, <a href="https://publications.waset.org/abstracts/search?q=chronic%20disease%20prevention" title=" chronic disease prevention"> chronic disease prevention</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20health" title=" public health"> public health</a> </p> <a href="https://publications.waset.org/abstracts/170193/impacts-and-implications-exploring-the-long-term-health-benefits-of-regular-physical-activity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170193.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">97</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">6210</span> Level of Physical Activity and Physical Fitness, and Attitudes towards Physical Activity among Senior Medical Students of Sultan Qaboos University, Sultanate of Oman</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hajar%20Al%20Rajaibi">Hajar Al Rajaibi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kawla%20Al%20Toubi"> Kawla Al Toubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeed%20Al%20Jaadi"> Saeed Al Jaadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Deepali%20Jaju"> Deepali Jaju</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjay%20Jaju"> Sanjay Jaju</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: The available evidence in Oman on lack of physical activity call for immediate intervention. Physical activity counseling by doctors to their patients is influenced by their attitudes and personal physical fitness. To our best knowledge, the physical activity status of Omani medical students has not been addressed before. These future doctors will have a critical role in improving physical activity in patients and thus their overall health. Objective: The aim of the study is to assess the physical activity level, physical fitness level, and attitudes towards physical activity among Sultan Qaboos University senior medical students. Methods: In this cross-sectional study (N=110; males 55), physical activity level was assessed using International Physical Activity Questionnaire (IPAQ ) short form and attitudes towards physical activity using a fifty-four-items Kenyon questionnaire. The physical fitness level was assessed by estimating maximal oxygen uptake (VO₂max) using Chester step test. Results: Female students reported more sitting time more than 7hr/day (85.5%) compared to male students (40%; p < 0.05). The IPAQ revealed moderate level of physical activity in 58% of students. Students showed a high positive attitude towards physical activity for health and fitness and low attitude for physical activity as tension and risk. Both female and male students had a similar level and attitude towards physical activity. Physical fitness level was excellent (VO₂max > 55ml O₂/kg/min) in 11% of students, good (VO₂max>44-54ml O₂/kg/min) in 49% and average to below-average in 40%. Objectively measured physical fitness level, subjectively reported physical activity level or attitudes towards physical activity were not correlated. Conclusion: Omani medical students have a positive attitude towards physical activity but moderate physical activity level. Longer sitting time in females need further evaluation. Efforts are required to understand reasons for present physical activity level and to promote good physical activity among medical students by creating more awareness and facilities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chester%20step%20test" title="Chester step test">Chester step test</a>, <a href="https://publications.waset.org/abstracts/search?q=Kenyon%20scale" title=" Kenyon scale"> Kenyon scale</a>, <a href="https://publications.waset.org/abstracts/search?q=medical%20students" title=" medical students"> medical students</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20activity" title=" physical activity"> physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20fitness" title=" physical fitness"> physical fitness</a> </p> <a href="https://publications.waset.org/abstracts/110676/level-of-physical-activity-and-physical-fitness-and-attitudes-towards-physical-activity-among-senior-medical-students-of-sultan-qaboos-university-sultanate-of-oman" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110676.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">153</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">6209</span> Performance of Bimetallic Catalyst in the Oxidation of Volatile Organic Compounds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Faezeh%20Aghazadeh">Faezeh Aghazadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The catalytic activity of Pt/γ-Al₂O₃ and Pt-Fe/γ-Al₂O₃ catalysts was investigated to bring about the complete oxidation of 2-Propanol. Among them, Pt-Fe/γ-Al₂O₃ was found to be the most promising catalyst based on activity. The catalysts were characterized by (XRD), (SEM), (TEM) and ICP-AES techniques. Iron loadings on Pt/γ-Al₂O₃ had a great effect on catalytic activity, and Pt-Fe/γ-Al₂O₃ (1.75 wt% Fe) catalyst at calcination temperature 300°C was observed to be the most active, which might be contributed to the favorable synergetic effects between Pt and Fe, high activity and the well-dispersed bimetallic phase. The combustion of 2-Propanol in the vapor phase was carried out in a conventional flow U-shape glass reactor used in the differential mode at atmospheric pressure. 2-Propanol was analyzed by a gas chromatograph VARIAN 3800 CX equipped with an FID. As observed, better performance and activity were observed for Pt-Fe/Al₂O₃ bimetallic catalyst. These results indicate that the high dispersion on support gives a positive effect on catalytic activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=volatile%20organic%20compounds" title="volatile organic compounds">volatile organic compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=bimetallic%20catalyst" title=" bimetallic catalyst"> bimetallic catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=catalytic%20activity" title=" catalytic activity"> catalytic activity</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20temperature" title=" low temperature"> low temperature</a> </p> <a href="https://publications.waset.org/abstracts/145827/performance-of-bimetallic-catalyst-in-the-oxidation-of-volatile-organic-compounds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145827.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">145</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">6208</span> In Vitro Antifungal Activity of Essential Oil Artemisia Absinthium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bouchenak%20Fatima">Bouchenak Fatima</a>, <a href="https://publications.waset.org/abstracts/search?q=Lmegharbi%20Abdelbaki"> Lmegharbi Abdelbaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Houssem%20Degaichia"> Houssem Degaichia</a>, <a href="https://publications.waset.org/abstracts/search?q=Benrebiha%20Fatima"> Benrebiha Fatima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The essential oil composition of the leaf of Artemisia absinthium from region of Cherchell (The south of Algeria) was investigated by GC, GC-MS. 27 constituents were identified correspond to 84, 63% of the total oil. The major components are Thujone (60, 82%), Chamazulènel (16, 62%), ρ-cymène (4, 29%) and 2-carène (4.25%). The antimicrobial activity of oil was tested in vitro by two methods (agar diffusion and microdilution) on three plant pathogenic fungi. This oil has been tested for antimicrobial activity against three pathogenic fungi (Botrytis cinerea, Fusarium culmorum and Helminthosporium Sp.).The study of activity was evaluated by two methods: Method of diffusion in gelose and the minimum inhibitory concentration MIC. This oil exhibited an interesting antimicrobial activity. A preliminary study showed that this oil presented high toxicity against this fungus. These results, although preliminary show a good antifungal activity, to limit and inhibit stop the development of those pathogen agent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artemisia%20absinthian" title="artemisia absinthian">artemisia absinthian</a>, <a href="https://publications.waset.org/abstracts/search?q=extraction%20process" title=" extraction process"> extraction process</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20study" title=" chemical study"> chemical study</a>, <a href="https://publications.waset.org/abstracts/search?q=antifungal%20activity" title=" antifungal activity"> antifungal activity</a> </p> <a href="https://publications.waset.org/abstracts/23681/in-vitro-antifungal-activity-of-essential-oil-artemisia-absinthium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23681.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">484</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">6207</span> Comparison between Mental Toughness and Level of Physical Activity between Staff and Students in University of Tabriz</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahta%20Eskandarnejad">Mahta Eskandarnejad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this paper was to compare physical activity and mental toughness in the staff and students of the University of Tabriz. 615 people participated in this study and filled demographic questionnaire, mental thoughness48 (MTQ48) questionnaire and habitual physical activity questionnaire (Baecke physical activity questionnaire). The research sample included 355 students and 260 staff (615 questionnaires). For analyzing hypotheses MANOVA, correlation and independent t-test were used. Based on the result; some subscales of mental toughness and physical activity were significantly related. The result showed the significant correlation between mental toughness and physical activity in student and no significant correlation in staff. Students were significantly physically more active than staff, and mental toughness was higher in staff. There was no difference in mental toughness variable between active participants (active staff and student). The results of this study showed that mental toughness could influence the way a person cope with living conditions. It is expected that mental toughness changes can lead to changing in levels of physical activity. It should be noted that the other variables should not be ignored. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Baecke%20physical%20activity%20questionnaire" title="Baecke physical activity questionnaire">Baecke physical activity questionnaire</a>, <a href="https://publications.waset.org/abstracts/search?q=mental%20toughness" title=" mental toughness"> mental toughness</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20activity" title=" physical activity"> physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=university%20staff" title=" university staff"> university staff</a>, <a href="https://publications.waset.org/abstracts/search?q=university%20student" title=" university student"> university student</a> </p> <a href="https://publications.waset.org/abstracts/88198/comparison-between-mental-toughness-and-level-of-physical-activity-between-staff-and-students-in-university-of-tabriz" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88198.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">391</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">6206</span> Antımıcrobıal Actıvıty of Gırardınıa Heterophılla</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=P.%20S.%20BEDI%2A">P. S. BEDI* </a>, <a href="https://publications.waset.org/abstracts/search?q=Neavty%20Thakur"> Neavty Thakur</a>, <a href="https://publications.waset.org/abstracts/search?q=Balv%C4%B1nder%20S%C4%B1ngh"> Balvınder Sıngh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present study an attempt has been made to prepare the crude extracts of leaves and stem of ‘Girardinia heterophylla’ by using various solvents like petroleum ether, ethanol and double distilled water. The samples were given the code NGLS 1, NGLS 2, NGLS 3, NGSS 1, NGSS 2 and NGSS 3 respectively. All the extracts were used to study their antimicrobial activity against gram positive bacteria eg. Bacillus subtilis, Gram negative bacteria eg. E. coli, K. pneumonia and antifungal activity against Aspergillus niger. The results of the antimicrobial activity showed that all the crude extracts of the plant posseses antibacterial activity. Maximum antibacterial activity was shown by NGLS 2, NGLS 3 and NGSS 3 against K. pneumonia. The growth of fungus A. niger was also inhibited by all the crude extracts. Maximum inhibition was shown by NGSS 2 followed by NGSS 1. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Girardinia%20heterophylla" title="Girardinia heterophylla">Girardinia heterophylla</a>, <a href="https://publications.waset.org/abstracts/search?q=leaves%20and%20stem%20extracts" title=" leaves and stem extracts"> leaves and stem extracts</a>, <a href="https://publications.waset.org/abstracts/search?q=Antibacterial%20activity" title=" Antibacterial activity"> Antibacterial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=antifungal%20activity." title=" antifungal activity."> antifungal activity.</a> </p> <a href="https://publications.waset.org/abstracts/2494/antimicrobial-activity-of-girardinia-heterophilla" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2494.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">345</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6205</span> General Network with Four Nodes and Four Activities with Triangular Fuzzy Number as Activity Times</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rashmi%20Tamhankar">Rashmi Tamhankar</a>, <a href="https://publications.waset.org/abstracts/search?q=Madhav%20Bapat"> Madhav Bapat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In many projects, we have to use human judgment for determining the duration of the activities which may vary from person to person. Hence, there is vagueness about the time duration for activities in network planning. Fuzzy sets can handle such vague or imprecise concepts and has an application to such network. The vague activity times can be represented by triangular fuzzy numbers. In this paper, a general network with fuzzy activity times is considered and conditions for the critical path are obtained also we compute total float time of each activity. Several numerical examples are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PERT" title="PERT">PERT</a>, <a href="https://publications.waset.org/abstracts/search?q=CPM" title=" CPM"> CPM</a>, <a href="https://publications.waset.org/abstracts/search?q=triangular%20fuzzy%20numbers" title=" triangular fuzzy numbers"> triangular fuzzy numbers</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20activity%20times" title=" fuzzy activity times "> fuzzy activity times </a> </p> <a href="https://publications.waset.org/abstracts/28350/general-network-with-four-nodes-and-four-activities-with-triangular-fuzzy-number-as-activity-times" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28350.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">473</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">6204</span> Physical Activity Interventions and Maternal Health Outcomes in Nigeria: A Meta-Analysis of Randomized Controlled Trials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jamilu%20Lawal%20Ajiya">Jamilu Lawal Ajiya</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Physical activity is essential for improving maternal health outcomes, particularly in low- and middle-income countries like Nigeria. Objective: The aim is to evaluate the effectiveness of physical activity interventions on maternal health outcomes among Nigerian pregnant women. Methods: Systematic review and meta-analysis of randomized controlled trials (RCTs) conducted in Nigeria, published in English, and focusing on physical activity and maternal health outcomes. Results: Ten RCTs (N=1,200) were included. Physical activity interventions significantly reduced the risk of gestational diabetes, hypertension and preterm birth. Also, the study found that brisk walking and aerobic exercise were more effective than yoga. Conclusion: Physical activity interventions improve maternal health outcomes among Nigerian pregnant women. Policy changes and public health programs should prioritize physical activity promotion during pregnancy. This study informs healthcare providers, policymakers, and researchers on the effectiveness of physical activity interventions in improving maternal health outcomes in Nigeria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=physical%20activity" title="physical activity">physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=maternal%20health" title=" maternal health"> maternal health</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigeria" title=" Nigeria"> Nigeria</a>, <a href="https://publications.waset.org/abstracts/search?q=randomized%20controlled%20trials" title=" randomized controlled trials"> randomized controlled trials</a> </p> <a href="https://publications.waset.org/abstracts/192243/physical-activity-interventions-and-maternal-health-outcomes-in-nigeria-a-meta-analysis-of-randomized-controlled-trials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/192243.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">23</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">6203</span> Physical Activity Self-Efficacy among Pregnant Women with High Risk for Gestational Diabetes Mellitus: A Cross-Sectional Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xiao%20Yang">Xiao Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Ji%20Zhang"> Ji Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yingli%20Song"> Yingli Song</a>, <a href="https://publications.waset.org/abstracts/search?q=Hui%20Huang"> Hui Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jing%20Zhang"> Jing Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yan%20Wang"> Yan Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Rongrong%20Han"> Rongrong Han</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhixuan%20Xiang"> Zhixuan Xiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%20Chen"> Lu Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Lingling%20Gao"> Lingling Gao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Aim and Objectives: To examine physical activity self-efficacy, identify its predictors, and further explore the mechanism of action among the predictors in mainland Chinese pregnant women with high risk for gestational diabetes mellitus (GDM). Background: Physical activity could protect pregnant women from developing GDM. Physical activity self-efficacy was the key predictor of physical activity. Design: A cross-sectional study was conducted from October 2021 to May 2022 in Zhengzhou, China. Methods: 252 eligible pregnant women completed the Pregnancy Physical Activity Self-efficacy Scale, the Social Support for Physical Activity Scale, the Knowledge on Physical Activity Questionnaire, the 7-item Generalized Anxiety Disorder scale, the Edinburgh Postnatal Depression Scale, and a socio-demographic data sheet. Multiple linear regression was applied to explore the predictors of physical activity self-efficacy. Structural equation modeling was used to explore the mechanism of action among the predictors. Results: Chinese pregnant women with a high risk for GDM reported a moderate level of physical activity self-efficacy. The best-fit regression analysis revealed four variables explained 17.5% of the variance in physical activity self-efficacy. Social support for physical activity was the strongest predictor, followed by knowledge of the physical activity, intention to do physical activity, and anxiety symptoms. The model analysis indicated that knowledge of physical activity could release anxiety and depressive symptoms and then increase physical activity self-efficacy. Conclusion: The present study revealed a moderate level of physical activity self-efficacy. Interventions targeting pregnant women with high risk for GDM need to include the predictors of physical activity self-efficacy. Relevance to clinical practice: To facilitate pregnant women with high risk for GDM to engage in physical activity, healthcare professionals may find assess physical activity self-efficacy and intervene as soon as possible on their first antenatal visit. Physical activity intervention programs focused on self-efficacy may be conducted in further research. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=physical%20activity" title="physical activity">physical activity</a>, <a href="https://publications.waset.org/abstracts/search?q=gestational%20diabetes" title=" gestational diabetes"> gestational diabetes</a>, <a href="https://publications.waset.org/abstracts/search?q=self-efficacy" title=" self-efficacy"> self-efficacy</a>, <a href="https://publications.waset.org/abstracts/search?q=predictors" title=" predictors"> predictors</a> </p> <a href="https://publications.waset.org/abstracts/163023/physical-activity-self-efficacy-among-pregnant-women-with-high-risk-for-gestational-diabetes-mellitus-a-cross-sectional-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163023.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">101</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">6202</span> ORR Activity and Stability of Pt-Based Electrocatalysts in PEM Fuel Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Limpattayanate">S. Limpattayanate</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Hunsom"> M. Hunsom</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A comparison of activity and stability of the as-formed Pt/C, Pt-Co, and Pt-Pd/C electrocatalysts, prepared by a combined approach of impregnation and seeding, was performed. According to the activity test in a single proton exchange membrane (PEM) fuel cell, the oxygen reduction reaction (ORR) activity of the Pt-M/C electro catalyst was slightly lower than that of Pt/C. The j0.9 V and E10 mA/cm2 of the as-prepared electrocatalysts increased in the order of Pt/C>Pt-Co/C>Pt-Pd/C. However, in the medium-to-high current density region, Pt-Pd/C exhibited the best performance. With regard to their stability in a 0.5 M H2SO4 electrolyte solution, the electro chemical surface area decreased as the number of rounds of repetitive potential cycling increased due to the dissolution of the metals within the catalyst structure. For long-term measurement, Pt-Pd/C was the most stable than the other three electrocatalysts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ORR%20activity" title="ORR activity">ORR activity</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a>, <a href="https://publications.waset.org/abstracts/search?q=Pt-based%20electrocatalysts" title=" Pt-based electrocatalysts"> Pt-based electrocatalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=PEM%20fuel%20cell" title=" PEM fuel cell"> PEM fuel cell</a> </p> <a href="https://publications.waset.org/abstracts/25226/orr-activity-and-stability-of-pt-based-electrocatalysts-in-pem-fuel-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25226.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> 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