High-intensity interval training (HIIT) increases insulin-like growth factor-I (IGF-I) in sedentary aging men but not masters’ athletes: an observational study

Introduction: The aim of this investigation was to examine the impact high-intensity interval training (HIIT) on serum insulin-like growth factor-I (IGF-I) in active compared with sedentary aging men.

Methods: 22 lifetime sedentary (SED; 62?±?2 years) and 17 masters’ athletes (LEX; 60?±?5 years) were recruited to the study. As HIIT requires preconditioning exercise in sedentary cohorts, the study required three assessment phases; enrollment (phase A), following preconditioning exercise (phase B), and post-HIIT (phase C). Serum IGF-I was determined by electrochemiluminescent immunoassay.

Results: IGF-I was higher in LEX compared to SED at baseline (p?=?0.007, Cohen’s d?=?0.91), and phase B (p?=?0.083, Cohen’s d?=?0.59), with only a small difference at C (p?=?0.291, Cohen’s d?=?0.35). SED experienced a small increase in IGF-I following preconditioning from 13.1?±?4.7 to 14.2?±?6.0?μg·dl^?1 (p?=?0.376, Cohen’s d?=?0.22), followed by a larger increase post-HIIT (16.9?±?4.4?μg·dl^?1), which was significantly elevated compared with baseline (p?=?0.002, Cohen’s d?=?0.85), and post-preconditioning (p?=?0.005, Cohen’s d?=?0.51). LEX experienced a trivial changes in IGF-I from A to B (18.2?±?6.4 to 17.2?±?3.7?μg·dl^?1 [p?=?0.538, Cohen’s d?=?0.19]), and a small change post-HIIT (18.4?±?4.1?μg·dl^?1 [p?=?0.283, Cohen’s d?=?0.31]). Small increases were observed in fat-free mass in both groups following HIIT (p?d?=?0.32–0.45).

Conclusions: In conclusion, HIIT with preconditioning exercise abrogates the age associated difference in IGF-I between SED and LEX, and induces small improvements in fat-free mass in both SED and LEX.     

How moral disengagement facilitates the detention of refugee children and families

Refugee children and families are a vulnerable demographic with the propensity to disrupt entrenched disparaging perceptions about immigrants. This project investigates how institutionalised moral disengagement practices [Bandura, Albert. 2002. “Selective Moral Disengagement in the Exercise of Moral Agency.” Journal of Moral Education 31: 101–119] at family detention centres facilitate the apprehension and confinement of children and families seeking asylum. Interviews with former volunteers and an analysis of news reports describing conditions at these centres reveal that moral disengagement plays a pivotal role in rationalising detention, while also enabling restrictive immigration policies and mass deportations. This occurs through the criminalisation of immigrants, suppressing details about residential conditions, and a quota capacity model. Findings are contextualised with regard to recent immigration legislations.     

EXACT TWO-SAMPLE MEDIAN TESTS WHEN ONE "SAMPLE" VALUE POSSIBLY FROM A DIFFERENT POPULATION

Random samples are assumed for the univariate two-sample problem. Sometimes this assumption may be violated in that an observation in one “sample”, of size m, is from a population different from that yielding the remaining m—1 observations (which are a random sample). Then, the interest is in whether this random sample of size m—1 is from the same population as the other random sample. If such a violation occurs and can be recognized, and also the non-conforming observation can be identified (without imposing conditional effects), then that observation could be removed and a two-sample test applied to the remaining samples. Unfortunately, satisfactory procedures for such a removal do not seem to exist. An alternative approach is to use two-sample tests whose significance levels remain the same when a non-conforming observation occurs, and is removed, as for the case where the samples were both truly random. The equal-tail median test is shown to have this property when the two “samples” are of the same size (and ties do not occur).     

Shaping the future of social work in end-of-life and palliative care

The second Social Work Summit on End-of-Life and Palliative Care was held from June 1 to June 3, 2005. Sixty representatives of more than 35 social work and other professional organizations with a commitment to improve care for the terminally ill, dying, and bereaved, attended and formulated key priority directions and initiatives that will further the field.     

Marginal methods for clustered longitudinal binary data with incomplete covariates

Many analyses for incomplete longitudinal data are directed to examining the impact of covariates on the marginal mean responses. We consider the setting in which longitudinal responses are collected from individuals nested within clusters. We discuss methods for assessing covariate effects on the mean and association parameters when covariates are incompletely observed. Weighted first and second order estimating equations are constructed to obtain consistent estimates of mean and association parameters when covariates are missing at random. Empirical studies demonstrate that estimators from the proposed method have negligible finite sample biases in moderate samples. An application to the National Alzheimer's Coordinating Center (NACC) Uniform Data Set (UDS) demonstrates the utility of the proposed method.     

生态投资柳暗花明——绿色能源堪比当年的网络通信技术

近年来,非传统能源（如风能、太阳能等）工业得到了繁荣发展。但随着金融危机的加剧,全球经济持续低迷,股票市场动荡不安,原本被普遍看好的非传统能源股也难逃跌价的厄运。那么,当前的市场环境究竟会对生态投资领域造成怎样的影响呢？     

Comparisons of Gambling and Alcohol Use Among College Students and Noncollege Young People in the United States

Abstract

Objective: Gambling and alcohol use were compared for college and noncollege young adults in the US population. Participants: Participants were 1,000 respondents aged 18 to 21. Methods: Data were analyzed from a representative household sample of US young people aged 14 to 21 years old. Telephone interviews were conducted between August 2005 and January 2007. Results: After taking into account gender, age, race/ethnicity, and socioeconomic status, college student status did not predict gambling, frequent gambling, or problem gambling. In contrast, being a college student was associated with higher levels of alcohol use and problem drinking. Being male was the strongest predictor of both problem gambling and problem drinking. Blacks were less likely than whites to drink heavily; yet they were more likely than whites to gamble heavily. Conclusion: Young males should be targeted for prevention and intervention efforts for both problem gambling and problem drinking regardless of college student status.     

Overloaded and overlooked: Improving resident advisors' self-care

ABSTRACT

Objective: The purpose of this viewpoint is to discuss the lack of research on resident advisor (RA) self-care and how behavioral interventions can be used in housing programs to educate and improve RA self-care. It is essential for live-in housing staff (both professional and paraprofessional) to learn how to develop appropriate strategies that target problem behaviors to improve self-care. An overview of the RA position, the effects of increased demands (i.e., burnout), and the research on self-care behavioral interventions are discussed. Lastly, the call to use behavioral interventions within housing programs to educate RAs on self-care awareness and improve and monitor their health behaviors to prevent burnout and psychological distress is provided.     

The Use of Cervical Caps at the University of California/Berkeley

Abstract

The higher rates of disease and death associated with male gender have been widely documented, yet little is being done in the college health setting to address men's health issues. Many of men's health risks are related to social isolation and prohibitions on showing weakness. The authors describe the Virginia Tech University experience with 3 Man Alive groups that were developed to (a) create a supportive social structure for male college students who may otherwise be socially isolated, (b) model healthy expression of emotions, such as anger, fear, sadness, and joy; (c) create a safe space for men to discuss sensitive issues, such as relationships with significant others, sexuality, and substance abuse.