Body composition assessment of English Premier League soccer players: a comparative DXA analysis of first team,U21 and U18 squads

Professional soccer players from the first team (1st team, n = 27), under twenty-one (U21, n = 21) and under eighteen (U18, n = 35) squads of an English Premier League soccer team were assessed for whole body and regional estimates of body composition using dual-energy X-ray absorptiometry (DXA). Per cent body fat was lower in 1st team (10.0 ± 1.6) compared with both U21 (11.6 ± 2.5, P = 0.02) and U18 (11.4 ± 2.6, P = 0.01) players. However, this difference was not due to variations (P = 0.23) in fat mass between squads (7.8 ± 1.6 v 8.8 ± 2.1 v 8.2 ± 2.4 kg, respectively) but rather the presence of more lean mass in 1st team (66.9 ± 7.1 kg, P < 0.01) and U21 (64.6 ± 6.5 kg, P = 0.02) compared with U18 (60.6 ± 6.3 kg) players. Accordingly, fat mass index was not different (P = 0.138) between squads, whereas lean mass index was greater (P < 0.01) in 1st team players (20.0 ± 1.1 kg · m^?2) compared with U18 players (18.8 ± 1.4 kg · m^?2). Differences in lean mass were also reflective of higher lean tissue mass in all regions, for example, upper limbs/lower limbs and trunk. Data suggest that training and nutritional interventions for younger players should therefore be targeted to lean mass growth as opposed to body fat loss.     

A Needs-Assessment Process for Designing Geospatial Data Management Systems within Federal Agencies

Many federal agencies face challenges with designing geospatial data management systems. This paper presents and documents a needs-assessment process that can be employed to prioritize agencies’ geospatial information needs; identify agencies’ capacity to manage a centralized geodatabase; determine agencies’ capacity to deliver Web-mapping services to the public; and identify barriers, such as data security and limited financial resources, that constrain agencies’ ability to design and manage a geospatial data management system. The paper details the needs-assessment process and documents its application to the National Park Service (NPS) Conservation and Outdoor Recreation (COR) Branch programs. The NPS COR Branch is comprised of nine disparate programs, such as the National Trails System and the Rivers, Trails, and Conservation Assistance program, each of which has specific geospatial data management and delivery needs. The needs-assessment process, tested through its application to the NPS COR Branch programs, provides a comprehensive and logical workflow for system developers and administrators to use as they create or refine geospatial data management systems.     

Social Work Professions in an Aging World: Opportunities and Perspectives

Given world aging, social workers will be involved in assisting older persons in their home-country and/or abroad in various types of governmental or nongovernmental agencies. This paper identifies potential opportunities for social workers with gerontological backgrounds interested in working in international and cross-cultural settings. Discussed are the role of social work education in assisting the development of student interest and competence in working with and for older persons in an aging world. Also discussed are international opportunities in field placements for work with older people.     

The Speech at Hall of Fame（Excerpts）

2009年9月12日，乔丹正式入选篮球名人堂，站在发言席上的乔丹也承认自己有点紧张和激动，并且一度喉咙哽咽，老泪纵横，发表感言的时候，他要感谢的人实在有太多，从亲人，到队友，再到对手。虽说乔丹演讲不像学者那样文雅，但是这绝对能让人学到地道的美国街头口语。     

An integrated assessment of the effects of Title I on school behavior,resources, and student achievement

We examine the effects of Title I on school behavior, resources, and academic performance using a rich set of school finance and student-level achievement data from one large urban school district using a regression discontinuity design. We find that Title I eligibility raises Federal revenues of schools by about $460 per student. This is partially offset by decreases in revenues from state categorical aid grants, so that the net increase to schools is about $360 per student. We find no impact on overall school-level test scores, but also no impact among the subgroups of students most likely to be affected by Title I. A novel finding is that schools appear to respond to the incentives embedded in the Title I allocation process by manipulating the fraction of their students signed up for free lunch to secure more Federal funds.     

Whose curriculum? Critical notes on integration and entitlement

ABSTRACT

This paper considers the way in which current notions of integration and curriculum entitlement may disadvantage pupils with exceptional needs. An illustrative case of a pupil with profound and multiple learning difficulties is discussed along with general issues of entitlement arising, and the implications for that individual. Through an examination of the effects of the criteria for ‘being educated’ that result from the implementation of the National Curriculum in the UK, we question current perceptions of issues such as normalization, age appropriateness and 'integration’. We use a case study of a child with autism to question whether his educational interests are best served by current notions of integrated education. We suggest a broader notion of education that encompasses rather than contrasts with care, and suggest that curriculum entitlement should involve common curricular principles rather than common curricular content and should not deny within‐child factors. We further suggest that ‘integration’ should be reconceptualized as 'inclusion’ and we query the features that make educational needs ‘special’     

美国医学教育中的职业化问题:从证据到责任

职业化是维护公众对医学职业信任的核心要素,也是医患关系的本质所在.但有证据表明,公众对医学职业的信任日渐消失,医生也在维护医学职业价值观念时面临着各种挑战.本文在医学教育背景下界定"职业化"的定义和框架,描述了职业化面临的各种挑战,也详细论述了医学院校和教学医院在维护医学职业化过程中的角色和作用.此外,还评述了现行和试行中的评价职业化的工具、方法.最后,作者还提出一些建议供医学院校和教学医院参考.