城市老年人社会支持网络与生活满意度的研究

本研究采用自编的社会支持网络调查表对上海市96位老人进行了调查，试图了解城市老年人社会支持的基本情况及其对生活满意度的影响。结果表明：（1）城市老年人社会支持网络得分为85．87±8．56（x±s）；（2）社会支持网络得分与生活满意度之间存在极其显著的正相关；（3）在各因素水平中，社会机构的支持对老年人生活满意度的影响最大，子女支持的影响次之，配偶支持的影响最小；情感支持的影响作用大于认知支持和行为支持。     

用层级相合性指标探测反应数据中噪音大小

不同的认知诊断模型（CDM）对反应数据中噪音的抗干扰能力不同,在评估CDM性能的模拟实验中,反应数据中所含噪音的大小是十分重要的实验条件。由于噪音的内隐性,为应用中选用相应的CDM带来困难。本文在认知模型已知条件下,欲使用MHCI和NHCI指标评估认知诊断测验的反应数据（0, 1评分）中噪音的大小。模拟实验表明,两指标与噪音存在明显的统计规律。尤其是以NHCI为主要自变量对噪音进行预测的回归方程中,回归模型解释率均接近90%;以此实现对噪音的有效预测,从而为选择CDM提供一个参考。     

Poverty,ethnicity, and risk of obesity among low birth weight infants

The independent and joint effects of family and neighborhood poverty and ethnicity upon weight trajectories from age two to six-and-a-half were examined using data from the Infant Health and Development Program (N = 985), an early intervention program for low birth weight children and families. At age two, family poverty was associated with higher body mass index (BMI), whereas neighborhood poverty and ethnicity were not. Over time, the BMI of toddlers from poor and near poor neighborhoods increased nonlinearly, while those from nonpoor neighborhoods remained stable. BMIs of Hispanic-American toddlers increased steadily over time, unlike African-American and Anglo-American toddlers. Although initially similar, over time African-American toddlers' BMIs increased more rapidly than Anglo-American toddlers. Family and neighborhood poverty and ethnicity were associated with BMI. More work is needed on how poverty and ethnicity contribute to differences in early weight gain in conjunction with sociocultural and environmental factors in the home and community.     

不同性．别的非吸烟COPD患者肺功能和疾病严重程度的比较

比较不同性别的非吸烟的COPD患者的肺功能和疾病严重程度。选择承德医学院附属医院门诊就诊的非吸烟的稳定期COPD患者93例,其中男性34例,女性59例。对两组患者的肺通气功能和弥散功能,过去一年的急性加重次数、改良的呼吸困难评分及疾病严重程度进行比较。非吸烟的COPD患者男性组和女性组在FEVl％pred,FVC％pred,PEF％pred,FEF25—75％pred,FEF25％pred,FEF75％pred,DOSE评分方面比较,差异有统计学意义（P〈0．05）;在DL—CO％pred和Raw％pred方面比较,差异无统计学意义（P〉0．05）。非吸烟的女性COPD患者较男性COPD患者肺通气功能和小气道功能差,疾病严重程度重,可能与女性患者对生物燃料、空气污染等危险因素易感有关。     

医学科研与医学科学的发展——高校附属医院SCI热的利弊分析

针对当前我国各大医院普遍出现的《科学引文索引》(science citation index,SCI)热,对高等医学院校附属医院进行调查研究,从医学科研与医学科学的发展、医院SCI热的利弊,及未来规划三个方面进行详细分析.客观说明对科研工作者的科研成绩进行公正、合理的评价,反对单纯以发表论文数量评价个人学术水平和贡献的做法.只有这样才可以充分调动科研工作者的科学探索兴趣和热情,还科学研究以本来的面目,促进科研管理水平再上新台阶.     

Body image and personality among British men: Associations between the Big Five personality domains,drive for muscularity,and body appreciation

The present study examined associations between the Big Five personality domains and measures of men's body image. A total of 509 men from the community in London, UK, completed measures of drive for muscularity, body appreciation, the Big Five domains, and subjective social status, and provided their demographic details. The results of a hierarchical regression showed that, once the effects of participant body mass index (BMI) and subjective social status had been accounted for, men's drive for muscularity was significantly predicted by Neuroticism (β = .29). In addition, taking into account the effects of BMI and subjective social status, men's body appreciation was significantly predicted by Neuroticism (β = −.35) and Extraversion (β = .12). These findings highlight potential avenues for the development of intervention approaches based on the relationship between the Big Five personality traits and body image.     

Cognitive function in older adults according to current socioeconomic status

Cognitive function may be influenced by education, socioeconomic status, sex, and health status. Furthermore, aging interacts with these factors to influence cognition and dementia risk in late life. Factors that may increase or decrease successful cognitive aging are of critical importance, particularly if they are modifiable. The purpose of this study was to determine if economic status in late life is associated with cognition independent of socioeconomic status in early life. Cross-sectional demographic, socioeconomic, and cognitive function data were obtained in 2592 older adults (average age 71.6 years) from the Center for Disease Control’s National Health and Nutrition Examination Survey (NHANES) and analyzed with linear regression modeling. Cognitive function, as measured with a test of processing speed, was significantly associated with poverty index scores after adjusting for educational attainment as an estimate of childhood socioeconomic status, ethnic background, age, health status, and sex (P < 0.001). Our findings suggest that current economic status is independently associated with cognitive function in adults over age 60 years.     

Conceptual and measurement issues of the complementarity dimension of the coach–athlete relationship across cultures

ObjectivesGrounded in the 3Cs model of the coach–athlete relationship, this multi-study outlined the development of two scales that measure coaches' dominant behaviors and athletes' submissive behaviors.Method & resultsIn study 1, a pool of items was generated based on relevant literatures and interviews. The item pool was then assessed by an expert panel including academics, athletes and coaches. In Study 2 and Study 3, construct and criterion validity, as wells as internal reliability of the refined items were tested with a sample of elite coaches and athletes. Analyses revealed that Coach Dominant Behavior Scale (CDB-S) and Athlete Submissive Behavior Scale (ASB-S) possessed sound psychometric properties. In Study 4, the measurement invariance of the 10-item ASB-S was assessed across gender and five countries: Britain, China, Greece, Spain, and Sweden. Results supported the full structural invariance of the ASB-S.ConclusionOverall, the items of both CDB-S and ASB-S were found to be psychometrically sound. The discussion highlights the contributions these findings make on both conceptual and measurement levels as well as the opportunities it opens up for research with practical relevance.     

The PDQ-8: Development and validation of a short-form parkinson's disease questionnaire

Abstract

The Parkinson's Disease Questionnaire (PDQ-39) is a disease specific measure of health status which covers eight dimensions of ill-health, and contains 39 questions. The development of the questionnaire has been outlined in full elsewhere and is briefly outlined in this paper. Psychometric techniques are used here to derive a single index figure from the PDQ-39, transformed to a score range from 0 (good health) to 100 (poor health). A sub-set of items is then selected from the PDQ-39 to create a shorter form version, the PDQ-8. Each item selected is the one most highly correlated with the overall domain score to which it contributes: in cases where more than one item correlated equally strongly with the total then the item which received the highest completion rate was selected. The items were summed together and transformed onto a score from 0 to 100. The results gained from the single index gained from the PDQ-39 are compared with that gained from the PDQ-8, and are found to be remarkably similar. The use of the PDQ-8 is recommended over the PDQ-39 where a shorter form measure is required and where a single index measure of overall health status is acceptable or desirable.     

The Attention Demands of Movements

The probe technique has been employed extensively to measure the attention demands of movement control. Inherent in any RT paradigm is the potential confounding effect of anticipation. Experiment 1 studied this problem by varying probe frequency (or, conversely, catch-trial frequency) for three independent groups of subjects performing the same movement. Probe frequencies of one-third and two-thirds produced V-shaped curves of probe RT plotted against probe position within the movement, while a three-thirds condition was described by a negatively sloped linear function. Because of the different shaped curves it was recommended that a two-thirds frequency be adopted by all researchers in this area. Experiments 2 and 3 looked at the effects of movement length and movement time on the attention demands of movement. Shorter (11-cm) movements were more attention demanding in the middle of the movement than the longer (50-cm) movements, but movement time had no effect.