基于监测的空间网格结构应力应变分析

为保障大跨度空间结构的安全运营,以厦门高铁站房钢屋盖为研究对象,分析其应力、应变监测数据受温度载荷影响的特性,拟合结构应力和温度的线性变化关系。基于拟合线性关系,依据结构特点,提出测点数据基于温度相关性和测点相关性的数据缺失插补方法。通过对应力、应变监测数据的分析处理,更加直接全面了解大跨空间结构的受力情况,为其正常运营提供有力依据。     

Violations of health information privacy: The role of attributions and anticipated regret in shaping whistle‐blowing intentions

We examine the role of attributions, the seriousness of wrongdoing, and emotion in shaping individuals' whistle‐blowing intentions in the context of health information privacy violations. Based on 3 studies in which the intentionality of wrongdoing and the stability of wrongdoing were manipulated independently, we found consistent evidence that the intentionality of wrongdoing affects anticipated regret about remaining silent. The findings regarding the effect of stability, however, were mixed. In study 1, the stability of wrongdoing was found to affect anticipated regret about remaining silent, and in studies 2 and 3, stability was found to have a direct effect on whistle‐blowing intention but no effect on anticipated regret about remaining silent. In the 3 studies, the seriousness of wrongdoing was found to have an effect on whistle‐blowing intentions, but this effect was mediated by anticipated regret about remaining silent. Implications for research and practice are discussed.     

mHealth outcomes for pregnant mothers in Malawi: a capability perspective

ABSTRACT

Reducing maternal mortality rate (MMR) by 75% by the year 2015 was the primary target for Millennium Development Goal 5. However, between 1990 and 2015 the MMR only fell by 50%. Sustainable Development Goal 3 aims to reduce the global MMR to 0.1% by the year 2030. Mobile technology for healthcare service delivery (mHealth) is being implemented in many developing countries to address challenges faced in maternal health in trying to achieve this goal. Existing literature on mHealth tends to focus mainly on design and implementation of mHealth projects, a few studies have evaluated mHealth interventions to assess health outcomes. This study evaluates the effectiveness of mHealth based on consumers' capabilities, and investigates how mHealth contributes towards social change and human development using the capability approach theoretical framework. The findings show that the use of mobile phones to access health information and healthcare services can generate a number of opportunities for women in maternal health, not only for health purposes but also for their informational, economic and psychological wellbeing. However, the generation of the opportunities and realisation of the outcomes is mediated by a myriad of personal, social, and environmental factors that are either enabling or restrictive.     

Cultural Effects on Use of Online Social Media for Health-Related Information Acquisition and Sharing in Taiwan

The aims of this study were to use the technology acceptance model to examine how the cultural characteristics of social media users in Taiwan affect their use of social media for acquiring and sharing health-related information and to examine how their use of online social media benefits their social relationships and health self-efficacy. The research model in this quantitative cross-sectional study was tested with data collected from 321 active Facebook users in Taiwan. All three cultural characteristics/dimensions considered in the research model (masculinity, collectivism, and uncertainty avoidance) significantly affected the perceived usefulness and the perceived ease of using the online social media platform. However, masculinity had a significant positive effect on perceived usefulness but not on perceived ease of use. These results imply that technology tools for people in high masculinity cultures should be designed to maximize the effectiveness of the technology for achieving goals rather than to maximize the ease of using the technology. On the other hand, the use of online social media for acquiring and sharing health-related information significantly affected the social relationships of users but not their health self-efficacy. The results of this study imply that participants in online communities share health-related information not only to enhance their health but also to form strong social connections. This study proposes a new construct of technology acceptance, acquisition, and sharing of health-related information and investigates its effects on social relationships and health self-efficacy.     

素食的历史发展及营销策略探析

改革开放以来,人们的物质生活水平普遍提高,特别是沿海发达地区,生活质量提升较快,人们对食物的要求从一味求好转变为更求健康。素食的诸多益处使之成为了健康食物的代表。本文回顾了素食的产生及其发展历史,对比了中西方素食观的差异,分析了素食与健康的密切关系,并对如何采用餐饮营销的方式推广素食进行了探讨。     

枸杞当归保健酒浸提工艺优化试验研究

以枸杞、当归为主要原料,佐以其他中药材,采用浸泡工艺生产保健酒。利用正交实验设计,研究不同酒精度、温度和浸提时间对多酚物质浸出量的影响,进而筛选最佳保健酒生产工艺。所研制的产品风味独特,口感醇厚,营养丰富。最佳工艺条件为:酒精度45%(v/v),温度30℃,浸提时间25d。     

基于相似度建模的永磁牵引列车健康优化控制

为了保障永磁牵引列车退磁故障发生时的安全性,并缓解由此导致的电制动力下降及闸瓦磨耗加剧问题,提出了一种基于相似度建模(SBM)的健康优化控制方法,该方法通过在线监测数据与历史数据的相似度运算,自适应地估计剩余磁通量并生成最优的空气制动F-v特性曲线。以西门子Syntegra永磁同步电机牵引系统为例,对多种工况下的退磁监测和健康优化控制效果进行了仿真验证,在退磁估计准确性、相对磨耗优化和安全性保障等方面取得了预期的效果。     

荆州长江公路大桥运营阶段健康观测浅析

介绍了荆州长江公路大桥运营阶段健康观测的内容，对健康观测的结果进行了初步分析，为大桥的工作状况评估、养护与管理等工作提供了依据，同时也可供其他同类桥梁运营期健康观测参考。     

Predictors of outpatient mental health service use by American youth.

Among American children and adolescents aged 1 to 17 years, the 12- to 17-year-olds represent the largest users of outpatient mental health services. This study utilizes a nationally representative sample of this age group from the 2005 National Survey on Drug Use and Health to illuminate predictors of services use from three treatment settings: day treatment programs, mental health clinics/centers, and private/in-home settings. Univariate analyses were used to calculate the percentages of the study sample that used mental health services in these settings. In bivariate analyses, the authors estimated the strength of the associations between available predisposing, need, and enabling factors and the outcomes. Multiple logistic regressions estimated the independent effects of each covariate on the outcomes. Lifetime depression, lifetime general anxiety, delinquent behaviors, drug dependence, and Medicaid were consistent predictors of services use in the three treatment settings. Several other factors were associated with services use in bivariate analyses but lost most of their statistical significance when the authors adjusted for other confounders. Interpreted in light of its potential limitations, this study has important research and policy significance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Rehabilitation psychology: Realizing the true potential.

As the Division of Rehabilitation Psychology (Division 22) celebrates its 50th anniversary this year, this article reflects on the current status and important trends in health care and technology that are likely to have the largest impact on the science and practice of rehabilitation psychologists in the next decade. These trends include the prevalence of chronic conditions, health disparities, Operation Iraqi Freedom and Operation Enduring Freedom injuries, and caregiver burden. The implications of these trends are also discussed in the context of rehabilitation psychologists' involvement in public policy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)