In vitro antioxidant activity and potential inhibitory action against α-glucosidase of polysaccharides from fruit peel oftea (Camellia sinensis L.)简   总被引：1，自引：0，他引：1  

Yue-fei Wang  Jie Wang  Jing Wu  Ping Xu  Yi-qi Wang  Jun-jie Gao  Danielle Hochstetter 《Journal of Zhejiang University. Science. B》2014,15(2):173-180

The conditions for extracting polysaccharides from tea (Camellia sinensis L.) fruit peel (TFPPs) were studied. Three parameters (temperature, time, and liquid/solid ratio) affecting the extraction of TFPP were optimized using response surface methodology (RSM). Under the optimized conditions, the yield of TFPP was predicted to be 4.98%. The physicochemical properties, in vitro antioxidant activities, and inhibitory effects on α-glucosidase of fractionated TFPPs (TFPP-0, TFPP-20, TFPP-40, and TFPP-60) were investigated. We found that the TFPPs were all acid protein-bound heteropolysaccharides, although with different chemical compositions. They had not only remarkable scavenging activity on 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) and reducing activity, but also excellent inhibitory potential against α-glucosidase in vitro. Our results suggest that tea fruit peel could be treated as a potential bioresource for the development of polysaccharide antioxidants.  相似文献   

Statement of Editorial Policy     

Willis F. Overton  & Danielle L. Horvath 《Monographs of the Society for Research in Child Development》2000,65(2):107-108

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Anthropometric profiles of elite older triathletes in the Ironman Brazil compared with those of young Portuguese triathletes and older Brazilians     

Silva DA  Benedetti TR  Ferrari EP  Meurer ST  Antes DL  Silva AM  Santos DA  Matias CN  Sardinha LB  Vieira F  Petroski EL 《Journal of sports sciences》2012,30(5):479-484

The objective of this study was to describe the anthropometric profiles of elite older triathletes participating in the 2009 Ironman Brazil and to compare their somatotype, anthropometric and body composition characteristics with those of elite young triathletes and older non-athletes. The sample consisted of 64 males, divided into three groups: (1) older triathletes (n = 17), (2) young triathletes (n = 24), and (3) older non-athletes (n = 23). Somatotype was analysed according to the Carter and Heath ( 1990 ) method. Body mass index, sum of four skinfolds, percentage body fat, body fat mass, and fat-free mass were also estimated. Older non-athletes had higher endomorphy, sum of four skinfolds, fat percentage, and body fat mass than the athletes. Older athletes who participated in the Ironman and elite young triathletes had higher fat-free mass than older non-athletes. Older triathletes and older non-athletes were considered mainly endomorphic mesomorphs and young triathletes mainly ectomorphic mesomorphs. The findings that characterize the anthropometric profile of athletes in this sports modality could be used as a reference.  相似文献   

Lombroso's Legacy: The Miseducation of Criminologists     

John P. Wright  Kevin M. Beaver  Matt DeLisi  Michael G. Vaughn  Danielle Boisvert  Jamie Vaske 《Journal of Criminal Justice Education》2013,24(3):325-338

This study examines the extent to which criminal justice and criminology Ph.D. students are exposed to contemporary biological and genetic findings associated with aggression and violence. Drawing on multiple sources of information, we find little evidence showing that Ph.D. students are exposed to any biological research on crime and offending. We examine the consequences for this “trained incompetence” and offer suggestions for remedying this deficiency.

If all mankind minus one were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind. (John Stuart Mill)  相似文献   

Looking Far And Looking Near: Student Insights On History,Language, And Power     

Gail August  Sabrina Adaba  Cristina Mulas Lopez  Crismell Veras 《Community College Journal of Research & Practice》2013,37(12):930-933

ABSTRACT

Three community college students participated in a collaborative student/professor research project to experiment with new ideas in teaching. Under the direction of the instructor, the students studied the South African riots in Soweto, 1976, and how issues of language and power were connected to this event. This investigative process began with video information to introduce students to the key issues, and was then followed by student research and discussion. The students, who were particularly motivated to understand the conflict by relating it to their own linguistic circumstances, worked individually and together to find articles and video sources to support their personal interests and ideas. By reflecting on their experiences and perceptions about language and communication, students were able to become engaged in an unfamiliar historical topic, discover relevant academic information, evaluate sources, and formulate insightful responses.  相似文献   

Termination Is a Time to Look Back and Move Forward: Farewell From the Editor     

Emilia C. Lopez 《Journal of educational and psychological consultation》2013,23(4):263-265

We support role changes for educational and psychological consultants who work with children and youth with disabilities as they make important transitions. Principles derived from critical pedagogy and disability studies could provide the theoretical framework for the proposed shift in roles that change the basis on which consulting services are provided. Rather than needs-based services that focus on helping individuals with disabilities cope with deficits, this article supports an empowering person-centered, strength-based orientation tied to perceptions of the individual as competent and complex. We offer recommendations for transition consultants, researchers, and practitioners that could result in more widespread implementation of the principles of critical pedagogy and disability studies.  相似文献   

Editor's Note: Acknowledgments     

Emilia C. Lopez 《Journal of educational and psychological consultation》2013,23(4):267-268

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The Journal of Educational and Psychological Consultation: A Quarter Century of Contribution,A Future of Challenge and Optimism     

Stephen D. Truscott  Emilia Lopez  Marian C. Fish 《Journal of educational and psychological consultation》2013,23(1):2-15

The Journal of Educational and Psychological Consultation (JEPC) is beginning its second quarter century of publication. Given the challenges education faced in 1990, when the journal began publishing, and the evolving challenges of 2015, it became important to answer two questions: (1) Has JEPC successfully contributed to the facilitation of service delivery leading to improved outcomes? (2) What major challenges should JEPC consider—in an era of diminishing school budgets, professional autonomy, and social safety nets—to ensure that it can help to meet the needs of struggling learners, their fellow students, and the people and organizations who work on their behalf? To help answer these questions, this article discusses JEPC's contributions to consultation, current and future challenges, and possible directions for meeting the current and future needs of struggling learners, their peers, and all other stakeholders to which JEPC has dedicated itself.  相似文献   

Application of the Literacy Training Service component of the National Service Training Program in New Bilibid Prison (Philippines)     

Lopez  Emma Lina F. 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2019,65(5):755-784

International Review of Education - In 2000, the government of the Philippines launched its National Service Training Program (NSTP), a compulsory 2-semester course component for all the...  相似文献   

Martin to Brown     

Danielle K. Kilgo  Rachel R. Mourao  George Sylvie 《Journalism Practice》2019,13(4):413-430

The rise of the modern Black Lives Matter movement can be traced back to two key events, the 2012 death of Trayvon Martin and the 2014 death of Michael Brown. Research routinely showed that mainstream media’s narrative choices marginalize and delegitimize protesters and their causes, a pattern known as the protest paradigm. This study provides a longitudinal examination of how the same mainstream media system varied in their coverage of similar events and the degree to which journalists challenged the predicted paradigms conceptualized in other academic work. A content analysis of national newspaper coverage revealed that news before the judicial rulings focused on protesters’ tactics (violence versus peaceful) and changed to the realm of ideas (grievances and demands) after the assailants were considered not guilty of wrongdoing. No progression was found in legitimizing coverage of protests between the two cases.  相似文献