Carbohydrates for training and competition

An athlete's carbohydrate intake can be judged by whether total daily intake and the timing of consumption in relation to exercise maintain adequate carbohydrate substrate for the muscle and central nervous system ("high carbohydrate availability") or whether carbohydrate fuel sources are limiting for the daily exercise programme ("low carbohydrate availability"). Carbohydrate availability is increased by consuming carbohydrate in the hours or days prior to the session, intake during exercise, and refuelling during recovery between sessions. This is important for the competition setting or for high-intensity training where optimal performance is desired. Carbohydrate intake during exercise should be scaled according to the characteristics of the event. During sustained high-intensity sports lasting ~1 h, small amounts of carbohydrate, including even mouth-rinsing, enhance performance via central nervous system effects. While 30-60 g · h(-1) is an appropriate target for sports of longer duration, events >2.5 h may benefit from higher intakes of up to 90 g · h(-1). Products containing special blends of different carbohydrates may maximize absorption of carbohydrate at such high rates. In real life, athletes undertake training sessions with varying carbohydrate availability. Whether implementing additional "train-low" strategies to increase the training adaptation leads to enhanced performance in well-trained individuals is unclear.     

The impact of adverse childhood experiences on an urban pediatric population

Objective

The goal of this study was to investigate the adverse childhood experiences (ACEs) in youth in a low-income, urban community.

Study design

Data from a retrospective chart review of 701 subjects from the Bayview Child Health Center in San Francisco are presented. Medical chart documentation of ACEs as defined in previous studies were coded and each ACE criterion endorsed by a traumatic event received a score of 1 (range = 0-9). This study reports on the prevalence of various ACE categories in this population, as well as the association between ACE score and two pediatric problems: learning/behavior problems and body mass index (BMI) ≥ 85% (i.e., overweight or obese).

Results

The majority of subjects (67.2%, N = 471) had experienced 1 or more categories of adverse childhood experiences (ACE ≥ 1) and 12.0% (N = 84) had experienced 4 or more ACEs (ACE ≥ 4). Increased ACE scores correlated with increased risk of learning/behavior problems and obesity.

Conclusions

There was a significant prevalence of endorsed ACE categories in this urban population. Exposure to 4 or greater ACE categories was associated with increased risk for learning/behavior problems, as well as obesity.

Practice implications

Results from this study demonstrate the need both for screening of ACEs among youth in urban areas and for developing effective primary prevention and intervention models.     

Masculinity,subjectivity and neoliberalism in men’s accounts of migration and higher educational participation

In this article, I explore men’s educational experiences and aspirations in the context of UK policy discourses of widening participation and migration. Critiquing discourses that oversimplify gendered access to higher education, I develop an analysis of the impact of masculine subjectivities on processes of subjective construction in relation to be(com)ing a university student. Neoliberalism and self‐regulation emerge as significant themes by which the men make sense of their educational experiences and aspirations. Widening participation policy discursively constructs the subject as ‘disadvantaged’, ‘with potential’ and responsible for self‐improvement through participation in (alternative forms of) higher education (HE). The concept of diaspora illuminates the complex ways the men reconstruct their traumatic experiences in terms of hope and possibility, across different cultural spaces and expectations. A key question is how do the men construct and make sense of their masculine subjectivities in relation to diasporic experiences and aspirations to become HE students?     

Building Bridges Between Criminal Justice and the Forensic Sciences to Create Forensic Studies Programs 1

The ever‐increasing role of the forensic sciences in the criminal justice system requires criminal justice educators to integrate the study of forensic science into a traditional social science curriculum. Yet, most professors in criminal justice lack forensic science expertise sufficient to meet the educational demands of the field, as it is intertwined with natural science disciplines, especially biology and chemistry. Accordingly, this paper advocates the formation of an interdisciplinary forensic studies program, including a discussion of need, curricular components, and overcoming potential obstacles.     

The Role of the Community College in Providing Language,Speech, and Hearing Services

Abstract

A survey of community college personnel in Connecticut, New York, and New Jersey was conducted to determine (1) the extent and type of services in speech, hearing, or language screening, remediation, and improvement, (2) the extent and type of instruction in speech and language improvement, and (3) the extent and type of bilingual services in speech, hearing or language presently offered to students and community members within the community college setting. In addition, the existence of plans to offer these services in the future was ascertained. Responses indicated the existence of some services but a general unavailability of comprehensive screening, evaluation, and rehabilitation programs despite the widespread needs of the growing community college constituency. The results of the survey can assist community college personnel in needs assessment and planning within their own institutions by offering a context for consideration of the priority for providing language, speech, and hearing services within the community college setting.     

Character,Social–Emotional,and Academic Outcomes Among Underachieving Elementary School Students

Students with persistent disruptive behavior problems lose valuable time in academic lessons, are a distraction for classmates, and cause stress for teachers. Recent meta-analyses indicate that 87% to 92% of published studies on school-based interventions targeting student problem behaviors report results from demonstration projects (involving highly trained staff under ideal circumstances) rather than routine practice programs. This study investigates the routine use of a schoolwide classroom management program and its relationship to elementary students’ social and academic outcomes. Three years after training in the classroom management program, 56 second-, third-, and fourth-grade teachers in an urban school district were assessed for fidelity to the program. Program fidelity was determined via direct observation in the classroom and validated by teacher self-ratings of fidelity and administrator ratings of teacher fidelity. Dependent variables included student engagement during academic lessons, out-of-school suspension rates, and report card grades. Results indicated that high program fidelity was significantly related to greater academic engagement and fewer suspensions, but not higher report card grades. This study adds to the scant literature on implementation fidelity of routine programs with high-risk populations.     

The provision of sexual health education in Australia: primary school teachers' perspectives in rural Victoria

In Australian schools, one significant component of whole-school learning in sexuality education is to provide students with developmentally appropriate curriculum and learning opportunities, with the intention of influencing positive health and well-being. In the situation where the usual classroom teacher is under-prepared or unwilling to teach sexuality education to their students, the use of external providers who are experts in puberty and sexual health is crucial. While the provider is a key influential factor in any sexual health programme, reliance on external providers for the provision of sexuality education in regional Australian cities is not well documented. This mixed-method study aims to address this gap in the literature with a specific focus on Ballarat, where the provision of sexuality education, particularly in primary schools, is heavily reliant on several external providers. Participant schools highlight the need for further positive synergies between the classroom teachers, external agencies and the accessibility of a rigorous curriculum to sustain the delivery of an effective programme to young people in schools.     

图书馆管理系统的现状和未来

针对现行图书馆集成系统(ILS)的不足,探究了国外新一代ILS(或MLS—图书馆管理系统)的研发和实施现状,特别突出了采用的新技术及其意图实现的功能。针对中国的市场环境,就新一代ILS的研发和实施提出了建议。     

An assessment of methodological options for investigating the development of persuasive skills across childhood

This study compared two fundamentally different approaches to assessing the development of persuasive skills in children: asking them to generate messages versus having them select from preformulated messages or strategies. Also investigated was the approach of asking children to indicate their rationale for choosing a particular message. Using criteria of showing a developmental progression with age and positive correlation with social cognitive measures presumed to be relevant to persuasive skills, the present study suggests more success with message generation than with selection of preformulated messages. Elicitation of the rationale may prove a useful supplement to either of the former approaches.