Hyperlipidemia in guinea pigs induced by chronic vitamin C deficiency     

Praveen Sharma  P. K. Sharma D.Sc.  J. Pramod  L. K. Kothari  Rashmi Ranka  Sushma Sharma 《Indian journal of clinical biochemistry : IJCB》1989,4(1):62-64

Sixteen weeks of chronic vitamin C deficiency, induced in guinea pigs by restricted vitamin C intake, resulted in a marked increase in the serum total LDL- and VLDL- cholesterol, triglycerides and total lipids. HDL-cholesterol decreased resulting in a highly significant increase in LDL/HDL ratio. The results reconfirm that vitamin C deficiency causes changes in blood lipid profile which could promote atherogenesis.  相似文献   

Study of adenosine deaminase activity in various arthritic conditions     

R. Kumar  S. B. Pachori  G. K. Senger  Satyanand  L. D. Joshi 《Indian journal of clinical biochemistry : IJCB》1994,9(2):72-74

Aim of present study was to compare the adenosine deaminase (ADA) activity in various types of arthritis conditions with synovial effusion. No. significant difference was observed in ADA activity in serum of control and study groups but results have shown a definite pattern of ADA activity in synovial fluid in various arthritic conditions. The highest value of ADA activity was observed in synovial fluid of patients with tubercular arthritis followed by rheumatoid, septic, osteo and post traumatic arthritis. Thus measurement of ADA activity in synovial fluid can be used as a parameter of differential diagnosis of arthritis specially tubercular in initial stages.  相似文献   

Promoting doctoral students' research self-efficacy: combining academic guidance with autonomy support     

Nickola C. Overall  Kelsey L. Deane  Elizabeth R. Peterson 《高等教育研究与发展》2011,30(6):791-805

A diverse sample of doctoral students completed an on-line questionnaire assessing their supervisors' academic, personal and autonomy support and their research self-efficacy. The more task-related help and personal support students received, the more positively they evaluated their supervision. The degree to which supervisors encouraged students to think and act autonomously (autonomy support) was not uniquely associated with students' supervision satisfaction but predicted greater research self-efficacy. A combination of high levels of autonomy and academic support was associated with the highest levels of research self-efficacy, whereas when greater levels of personal support were accompanied by low levels of autonomy support, students reported lower research self-efficacy. These results indicate that effective doctoral supervision involves supporting students to voice and act on their own ideas while simultaneously providing guidance on how to complete research tasks.  相似文献   

Advancing Diversity in STEM     

Paul L. Hill  Rose A. Shaw  Jan R. Taylor  Brittan L. Hallar 《Innovative Higher Education》2011,36(1):19-27

Although progress has been made, greater efforts are needed to promote faculty diversity at the college and university levels, especially in STEM fields. Thus, it is important to elucidate best practices both for increasing awareness of diversity issues pertaining to higher education and for implementing change. This article focuses on the outcomes of a diversity workshop for college and university faculty hosted by the West Virginia Higher Education Policy Commission, Division of Science and Research. More specifically, it elucidates how participation in the workshop translated into practice at the faculty participants’ home institutions.  相似文献   

Patterns and predictors of father-infant engagement across race/ethnic groups   总被引：1，自引：0，他引：1  

Cabrera NJ  Hofferth SL  Chae S 《Early childhood research quarterly》2011,26(3):365-375

This study examines whether levels of father engagement (e.g., verbal stimulation, caregiving, and physical play) vary by race/ethnicity using a model that controls for fathers' human capital, mental health, and family relationships. It also tests whether the models work similarly across race/ethnic groups. Its sample of N=5,089 infants and their families is drawn from the Early Childhood Longitudinal Study - Birth Cohort (ECLS-B). We found that, after including controls, African American and Latino fathers had higher levels of engagement in caregiving and physical play activities than White fathers. There were no differences in verbal stimulation activities across race/ethnicity. Fathers' education (college level) predicted more verbally stimulating activities whereas fathers' report of couple conflict predicted less caregiving and physical play. Although levels of engagement differed across the groups, the overall models did not differ by race/ethnicity, except for physical play. African American mothers who reported high levels of depressive symptoms had partners who engaged in more physical play than White mothers with high levels of depressive symptoms.  相似文献   

An experimental study evaluating professional development activities within a state funded pre-kindergarten program     

Susan H. Landry  Paul R. Swank  Jason L. Anthony  Michael A. Assel 《Reading and writing》2011,24(8):971-1010

This paper describes the implementation and evaluation for scaling up a comprehensive early childhood teacher professional development program into 11 communities across 2 years with funding through state legislative actions. The comprehensive program had four major components based on results from a previous multi-condition random assignment study across four states. The previous results demonstrated that the most optimum approach for supporting children??s school readiness included: (1) teacher on-line professional development with facilitation, (2) classroom mentoring, (3) implementation of a research-based curriculum, and (4) technology-driven progress monitoring that informed instruction. The comprehensive professional development program was evaluated in a new state program designed to bring childcare, Head Start, and public school pre-kindergarten together into integrated partnerships. In Year 1, 220 teachers serving 3834 children were randomly assigned to either receive the comprehensive program or not. Teachers who served as controls in Year 1 received the program in Year 2, and those who received the program in Year 1 participated for an additional year in Year 2, allowing for examination of the effects of one versus 2 years of participation. The program improved teachers instructional practices relative to controls, and a second year of participation resulted in greater gains in children??s language and literacy. Results support the need for well-integrated, comprehensive professional development for early childhood educators.  相似文献   

西宁城乡社火的表现形态及其文化功能研究     

马岩芳 《青海师范大学学报(哲学社会科学版)》2011,33(3):58-63

社火是民间节日期间举行的各种游艺杂戏活动的总称,蕴涵着丰富的民俗意味和浓烈的文化色彩,在中国各地城乡、尤其是广大农村流行颇广。作为城乡群众文化艺术活动的重要组成部分,社火有其悠久的历史传统和广泛的群众基础。在社火表演过程中,人们除获得情感释放外,还实现了一系列的文化及社会功能。城市社火和乡村社火作为同一民俗事项,具有许多相同点,但由于表演语境等诸因素的不同,在某些方面仍存在着差异。本文即重点对西宁城乡社火的表现形态和文化功能作一比较研究。  相似文献   

Instructional design of a distance education cultural awareness course to enhance currency and authenticity     

Susan L. O'Rourke  Marie Martin 《British journal of educational technology : journal of the Council for Educational Technology》2011,42(5):875-882

This paper describes the development of a virtual learning environment using a blend of collaborative technologies and human resources to provide US preservice teachers with an authentic experience of another culture. A core design component is the use of ‘embedded instructors’ who are natives of and living in the target country (N. Ireland) while delivering the course in the USA. The wider issue of the potential depersonalisation of online learning is also addressed, and effective strategies for promoting the human dimension and sustaining learner engagement are described. In the context of globalisation, as well as of the constantly increasing provision of online courses, the course model could be of interest to both the academic and the corporate world.  相似文献   

Scripted collaboration in serious gaming for complex learning: Effects of multiple perspectives when acquiring water management skills     

Hans G. K. Hummel  Jasper van Houcke  Rob J. Nadolski  Tony van der Hiele  Hub Kurvers  Ansje Löhr 《British journal of educational technology : journal of the Council for Educational Technology》2011,42(6):1029-1041

  相似文献   

Emotion discourse, social cognition, and social skills in children with and without developmental delays     

Fenning RM  Baker BL  Juvonen J 《Child development》2011,82(2):717-731

This study examined parent-child emotion discourse, children's independent social information processing, and social skills outcomes in 146 families of 8-year-olds with and without developmental delays. Children's emergent social-cognitive understanding (internal state understanding, perspective taking, and causal reasoning and problem solving) was coded in the context of parent-child conversations about emotion, and children were interviewed separately to assess social problem solving. Mothers, fathers, and teachers reported on children's social skills. The proposed strengths-based model partially accounted for social skills differences between typically developing children and children with delays. A multigroup analysis of the model linking emotion discourse to social skills through children's prosocial problem solving suggested that processes operated similarly for the two groups. Implications for ecologically focused prevention and intervention are discussed.  相似文献