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876 articles for “activities”
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Research ArticleOpen accessEvery word in the titlePhenolic Content, Antioxidant, Antimicrobial and Cytotoxic Activities of Ethanolic Extract of Salix albaGhassan Mohammad Sulaiman, Nehia Nima Hussien, Thorria Raddam Marzoog, Hussain Abood AwadThe total phenolic content, antioxidant, antimicrobial and cytotoxic activities of hot ethanolic extract of Salix alba bark were investigated. The antioxidant properties and the total phenolic contents of the extract were assessed by 1, 1-Diphenyl- 2-Picrylhydrazyl (DPPH) free radical scavenging and Folin-Ciocalteu methods, respectively. The extract showed significant antioxidant activity and antimicrobial activities against Staphylococcus aureus, Pseudomonas aeruginosa and Candida … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 1 · 18 Mar 2013 · 10,085 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Activities Based on Van Hiele’s Phase-Based Learning: Experts’ and Preservice Teachers’ ViewsAbdul Halim Abdullah, Effandi ZakariaThe effective learning strategies for mathematics topics may vary according to the topic. For geometry, the activities that are suggested to be implemented are carried out using Van Hiele’s phases of learning geometry. The phases include Information, Guided Orientation, Explicitation, Free Orientation and Integration. The implementation of these phased-based activities is easier and more effective with the presence of dynamic … …Journal of Mathematics and Statistics, Vol. 8, Issue 3 · 13 Oct 2012 · 8,036 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleMicrobial Activities as Affected by Peat Dryness and AmeliorantEdi Husen, Fahmuddin AgusProblem statement: Acceleration of microbial activities and thus of CO2 emission in drained peat soils used for agriculture, is of the main environmental concern. The objectives of this study were to (i) examine microbial activities in peat samples treated with different levels of water contents and ameliorants and (ii) evaluate the relative contribution of microbial groups to peat respiration. Approach: … …American Journal of Environmental Sciences, Vol. 7, Issue 4 · 29 Sep 2011 · 7,546 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAnticancer Activities of Some New Synthesized Thiazolo[3,2-a]Pyrido[4,3-d]Pyrimidine DerivativesAshraf M. Mohamed, Abdel-Galil E. Amr, Musaed A. Alsharari et al.Problem statement: This study describes the synthesis and anticancer activities of a new series of thiazolo[3,2-a]pyrimidines derivatives (2-7) using 3,5-bisarylmethylene-1-methyl-4- piperidone and 4-aryl-8-arylmethelene-6-methylpyrido[4,3-d]pyrimidine-2(1H)thiones as a starting materials. Approach: The antitumor activities of the newly synthesized compounds 4-7 were evaluated utilizing 60 different human tumor cell lines, representing leukemia, melanoma, lung, colon, brain, ovary, breast and prostate as well as kidney. … …American Journal of Biochemistry and Biotechnology, Vol. 7, Issue 2 · 23 Aug 2011 · 10,087 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStrategic Development Project for Specific Activities of "the Sports for all" in Caras-Severin CountyDumitru Evuleţ Colibaba, Liliana Dacica, Andrade BichescuProblem statement: The study elaborates and practically applies a strategic development project for specific activities of the sports for all which proposes as distinct aims the prevailing promotion of "the sport disciplines demanded by the client age and especially the continuous increase of the citizens' life quality in Caras-Severin County. Approach The analysis and identification of major problems which animate … …Journal of Social Sciences, Vol. 7, Issue 3 · 16 Jul 2011 · 7,589 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCognitive-Enhancing and Antioxidant Activities of Quercetin Liposomes in Animal Model of Alzheimer's DiseaseTerdthai Tong-un, Panakaporn Wannanon, Jintanaporn Wattanathorn, Wathita PhachonpaiProblem statement: Recent findings demonstrated the crucial role of oxidative stress on the pathophysiology of Alzheimer’s Disease (AD). Antioxidant intake is beneficial to delay or inhibit the progression of this disease. Quercetin, a bioflavonoid in fruits and vegetables, has a powerful antioxidant activity both in vitro and in vivo. Claims that quercetin has many biological activities. However, quercetin is rapidly … …OnLine Journal of Biological Sciences, Vol. 10, Issue 2 · 31 Oct 2010 · 7,880 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleLearning Outcomes of Project-Based and Inquiry-Based Learning ActivitiesMookdaporn Panasan, Prasart NuangchalermProblem statement: Organization of science learning activities is appnecessary to rely on various methods of organization of learning and to be appropriate to learners. Organization of project-based learning activities and inquiry-based learning activities are teaching methods which can help students understand scientific knowledge. It would be more efficient. This study aimed to compare learning achievement, science process skills and analytical … …Journal of Social Sciences, Vol. 6, Issue 2 · 30 Jun 2010 · 10,456 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleLearning outcomes between Socioscientific Issues-Based Learning and Conventional Learning ActivitiesPiyaluk Wongsri, Prasart NuangchalermProblem statement: Socioscientific issues-based learning activity is essential for scientific reasoning skills and it could be used for analyzing problems be applied to each situation for more successful and suitable. The purposes of this research aimed to compare learning achievement, analytical thinking and moral reasoning of seventh grade students who were organized between socioscientific issues-based learning and conventional learning activities. … …Journal of Social Sciences, Vol. 6, Issue 2 · 30 Jun 2010 · 8,061 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAn Examination of Teaching Behaviors and Learning Activities in Physical Education Class Settings Taught by Three Different Levels of TeachersHoward Z. Zeng, Raymond W. Leung, Michael HipscherProblem statement: To be an accredited teacher education program, physical education teacher education (PETE) programs must fulfill the national standards established by the National Association for Sport and Physical Education (NASPE). In order to meet the standards, a PETE program needs to have the cooperation of the following three levels of instructors: Specialist Teachers (STs), Inservice Teachers (ITs) and Preservice … …Journal of Social Sciences, Vol. 6, Issue 1 · 31 Mar 2010 · 8,654 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePotent Antielastase and Antityrosinase Activities of Astilbe chinensisSeung-Hun Lee, Sandesh Sancheti, Shruti Sancheti, Sung-Yum SeoProblem statement: In the current scenario, photo-aging is a major problem causing skin wrinkling and hyperpigmentation. Therefore, elastase and tyrosinase inhibitors play an important role in the treatment of skin aging and thus, gaining a special attention in cosmetic industries. Approach: In the screening of Korean medicinal plants to search the potent elastase and tyrosinase inhibitors, the extract of the … …American Journal of Pharmacology and Toxicology, Vol. 4, Issue 4 · 31 Dec 2009 · 7,777 accessesView PDFCite