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。     

二级项目题组混合IRT模型及其稳健权重估计

在心理测量和教育测量中,二级项目和题组项目是两类常见的项目类型。由这两种项目混合构成的测试在实践中有着重要的应用。被试在答题时,由于个人的潜在能力和项目难度不匹配,常常会产生异常反应,这些异常反应会影响IRT中潜在特质估计的准确性。仿真实验证明,二级项目题组混合IRT模型的稳健估计方法在出现异常值的情况下,能够比极大似然估计对被试的潜在特质做出更加准确的估计,能够满足实际测试的需求。     

The effect of a psycho-educational intervention on weight management in obese military personnel

Obesity is a serious health problem for many population groups, including military personnel. Model-based health education programs have been shown to be effective in reducing weight. This study assessed the efficacy of an educational intervention based on a trans-theoretical model (TTM) targeting weight loss among active duty military. A single group experimental study using a before-after design was conducted in 49 military personnel with obesity. Constructs such as self-efficacy, decisional balance, stages of change, and processes of change as well as anthropometric measures including weight, waist circumference, and body mass index (BMI) were assessed at three times (baseline, 2 months after the intervention, and 4 months later). The intervention consisted of 10 educational sessions developed based on TTM constructs. At baseline, 30 (61%) and 19 (39%) persons were in the pre-action and action stages, respectively. By 2 months after the intervention, only 24 persons (49%) were in pre-action stages and 25 (51%) were in the action stages. Four months later, one (2%) and 43 (88%) were in pre-action and action stages. The mean changes in self-efficacy (25.7 ± 4.1 to 29.3 ± 2.4), decisional balance (9.2 ± 3.6 to 13.8 ± 1.9), total cognitive (74.7 ± 8.5 to 84.7 ± 6.3), and total behavioral change (60.8 ± 9.8 to 71.7 ± 7.8) were significantly different across the three time points. Reductions in weight (99.8 ± 10.4 to 93.0 ± 9.6), waist circumference (105.9 ± 14.2 to 100.2 ± 13.0), and BMI (32.5 ± 5.2 to 30.3 ± 4.5) from baseline to 4 months after the intervention were also significant (p < 0.05). An educational program based on TTM may be effective in reducing weight among obese military staff.     

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。     

The association between maternal interaction and infant cortisol stress reactivity among preterm and full term infants at 4 months adjusted age

The purpose of this study was to assess the association between maternal interactive behavior and infant cortisol stress reactivity in response to the Still Face paradigm (SF) in a cohort of four-month old infants (adjusted age) born preterm (<32 weeks gestation, N = 22) compared with infants born full term (>37 weeks gestation, N = 28). Infant cortisol reactivity was calculated as area under the curve (AUC) from baseline to the third cortisol sample (30 min post-SF) using the trapezoidal rule, while the percent of time mothers spent using a contingent interaction style was measured (0–100%) during episodes 1 (Play; baseline), 3 (Reunion#1), and 5 (Reunion#2) while mother-infant dyads participated in the SF paradigm. We hypothesized that because infants born preterm are at increased risk for dysregulation, they would show, compared to full-term infants, a blunted stress response, involving under-responsiveness. We found blunted cortisol stress reactivity among the preterm infants. We also found that mothers of preterm infants demonstrated less contingent maternal interaction during Renion#1 of the SF; and that contingent maternal interaction at Reunion#2 of the SF was protective against cortisol stress reactivity in response to the SF. However, we did not find that the influence of maternal interaction on cortisol reactivity was moderated by gestational age group (full term vs preterm): the association between contingent maternal interaction and stress reactivity was similar for both gestational groups across episodes. In order to improve self-regulation and longer term social and cognitive developmental outcomes in medically at-risk infants, future research is warranted to determine how these findings relate to infants’ stress reactions in naturalistic settings, and the directionality and temporal relationship between cortisol stress responses and maternal interactive behavior.     

Eating Behavior—Choice or Reconstruction of Past Experience? A Randomized Clinical Trial of Changing Eating Intentions of Healthy Adults Through Hypnotic Suggestions

Recent meta-analyses have shown that psychological interventions have a small to medium effect on weight loss. We propose here a different approach to changing eating intentions. According to the Free Will literature, people decide to act before they acknowledge it, and they decide based on the reconstruction of previous experiences. The action can thus be inhibited immediately (max 100 ms) after awareness. We wanted to test if intervention based on this model, using hypnotic suggestions, can effectively change the intentions of eating. This study aims to identify which format of hypnotic suggestion can be more effective in changing eating intentions regarding high-calorie foods. Therefore, 88 healthy adult participants randomized in four groups received one session of hypnotic induction and suggestions or placebo. We measured the eating intentions through a computer task in which participants could choose pictures of low and high caloric food before, during, and after hypnosis. For the within-subject effect, results showed that two types of hypnotic suggestions significantly impacted the intentions of eating on high-calorie foods with large-effect, namely Cognitive Rehearsal (d = 0.81, p < .001) and Memory Substitution (d = 0.82, p < .001). After controlling for pretest ratings, we found a significant between-effect: the Cognitive Rehearsal group differed significantly from the Control in terms of intentions of eating (d = 0.85, p < .05). We conclude that hypnosis with Cognitive Rehearsal suggestions can help to positively impact the intentions of eating.     

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.     

肝素、低分子肝素诱导的重症血小板减少2例救治分析

探讨肝素/低分子肝素诱导的重症血小板减少救治经验与规律.对2例分别使用肝素、低分子肝素后出现重症血小板减少患者发病、临床特征、实验室检查等进行分析,进一步提高该类重症病的认识,总结救治经验:严密监测,早期发现,一旦出现重症血小板减少,及时停用肝素和/或低分子肝素,换用非肝素类抗凝药;立即激素(地塞米松30mg/d)冲击治疗2天,重症血小板减少(PLT≤3×109/L)并出血者酌情输注血小板.