Is the coefficient of variation a valid measure for detecting sincerity of effort of grip strength?

The wide use of the coefficient of variation in detecting sincerity of effort is puzzling since existing research findings regarding its effectiveness are contradictory. The lack of empirical support in the literature raises the question of whether or not the coefficient of variation is a valid measure for detecting sincerity of effort. Many clinicians, especially those who use a computer software to calculate the coefficient of variation, may not understand how the coefficient of variation is derived and what it is based on. The coefficient of variation is a measure of relative variability and would be used correctly only if the average and the standard deviation of grip strength trials increased proportionally. This case study, however, demonstrated that the average and standard deviation of grip strength are independent. Thus, the coefficient of variation is not a valid measure of sincerity of effort. In addition, this study indicated that the coefficient of variation may be inflated in individuals after carpal tunnel release surgery. The author, therefore, cautions clinicians against the use of the coefficient of variation as a measure of sincerity of effort especially in injured individuals with compromised hand strength.     

Single and double sexual standards in Finland,Estonia, and St. Petersburg

The sexual revolution and fight for gender equality began in the West during the 1960s but did not reach the Soviet Union until the late 1980s. Using survey data from nationally representative samples from Finland in 1971, 1992, and 1999 and from two former Soviet areas, Estonia in 2000 and St. Petersburg in 1996, we investigated the following: (a) differences across decades and countries in acceptance of the sexual double standard (SDS) in attitudes toward marital infidelity and women's initiating sex; and (b) the relationship between the SDS and sexual satisfaction. Results show that Finland in the 1990s was more egalitarian than Finland in 1971, St. Petersburg in 1996, or Estonia in 2000. Egalitarian sexual attitudes were positively related to sexual satisfaction.     

Expectations concerning future familial patterns among urban and kibbutz youth in Israel

"The purpose of this study was to compare the expectations and concepts urban and kibbutz adolescents [in Israel] have concerning their future families, and to compare the patterns desired by adolescents with the patterns existing in their parents' homes. The areas investigated included role allocation between husband and wife, and desired age [at] marriage and family size. The research population consisted of urban (174) and kibbutz (97) adolescents ages 17-18." "Overall..., concerning desired patterns of familial role allocation and marriage age, kibbutz and city adolescents show similar trends. However, concerning family size, differences still exist. Also, in both localities, there seem to exist differences between boys and girls concerning their future families."     

俄罗斯大学生的兼职情况调查

近年来,俄罗斯一些学者所进行的研究表明,当代俄罗斯青年人越来越重视高等教育.但青年们接受高等教育的动机出现了一些变化:首先他们是为了获得文凭,而把获得专业知识和提高职业技能放在次要地位;其次,青年们越来越现实,特别是在选择专业方面表现出强烈的实用主义倾向.他们不太重视个人的兴趣与爱好,或个人的能力与特长,而只是考虑该专业是否有良好的就业前景或在社会上是否受人尊敬,收入水平高不高等等.     

On the road toward the development of clothing size standards and safety devices for Chilean workers

The range of sizes used in Chile for clothing comes from criteria developed in continental Europe, mainly the EN 13402 standard. Any standard adopted by a country should consider the anthropometric dimensions of the user population, particularly to discern the ratio of garments for different size. Consequently, the purpose of this study was to propose standards for the size of clothing based on anthropometric characteristics of a sample of Chilean miners. The study was conducted in 447 male workers. The age and body weight were measured in each workers as well as their percentage of body fat. Anthropometric measurements for garments were made according to the criteria of the European Community (EN 13402-1) and ISO (8559- 1989). Body dimensions for the design of gloves, shoes, helmets and caps, clothes that cover the upper part of the body and clothes that cover the lower part were measured. The results obtained made it possible to establish the percentage of workers falling within the range of sizes that manufacturers consider as reference. One of the main conclusions of the study is the need to carefully consider a set of complementary anthropometric measures, which can help to improve the comfort of costumes, to the extent that the providers adapt their designs to the characteristics of Chilean workers.     

Considering social ergonomics: the effects of HIT on interpersonal relationships between patients and clinicians

This study explored physicians' interactions with EHRs to understand the qualities that contribute to patient satisfaction with their use of the technologies and patient satisfaction with physician. Video-taped observations of 100 medical consultations were used to distinguish interaction patterns between physicians and EHRs. Quantified observational methods were used to contribute to ecological validity. Ten primary care physicians and 100 patients from five clinics participated in the study. Visits were videotaped and coded using an objective coding methodology to understand how physicians interacted with electronic health records. Results indicate, a variety of EHR interaction styles may be effective in providing patient-centered care.     

Personality of social robots perceived through the appearance

Past research showed that people are able to perceive the personality of others at zero acquaintances. There are two main ways, verbal and non-verbal methods, which play an important role for one in perceiving personality of others. Extensive research was conducted in relating personality with verbal, paralinguistic and gestures cues. However, there are not much research, to our knowledge, that relates the appearance and perceived personality of robots. The main objective of this research is to relate individual design features with big five perceived personality of the robots. We used the results of rated perceptions across 100 pictorial images of robots and relate the results with the 40 individual design features using General Linear Model (GLM). The initial results of the GLM analysis showed that participants' rating of personality of robot fell along the dimension of perceived friendliness which is a common rotation of extroversion and agreeableness. Some relationships were found between humanlike design features and perceived friendliness of robots. Since participants are more familiar with humans, participants perceived robots with humanlike features friendlier than the others. Some other findings such as color and surface material were found related with participants' perceived friendliness as well. In the future, we will work on the analysis of the main and interaction effects of individual features on user's perceived friendliness.     

User-driven innovation of an outpatient department

This paper presents experiences from a user-driven innovation process of an outpatient department in a hospital. The mixing of methods from user-driven innovation and participatory design contributed to develop an innovative concept of the spatial and organizational design of an outpatient department in a hospital. Design games and tabletop simulation seem to be powerful tools in facilitating such a participatory process.     

Child care availability and first-birth timing in Norway

Both sociological and economic theories posit that widely available, high-quality, and affordable child care should have pronatalist effects. Yet to date, the empirical evidence has not consistently supported this hypothesis. We argue that this previous empirical work has been plagued by the inability to control for endogenous placement of day care centers and the possibility that people migrate to take advantage of the availability of child care facilities. Using Norwegian register data and a statistically defensible fixed-effects model, we find strong positive effects of day care availability on the transition to motherhood.     

大朵大朵的云彩结伴纠缠

爱情犹如战争。双方征战,攻城掠地的,永远是不动感情的那一个。一南宫稚常问花蕊,缘何,背井离乡,来到这座南方的城市?花蕊仰着苍白洁净的小脸,紧紧依在窗台上,单薄的身体仿佛一阵风便可吹走。她冲南宫稚笑,倔傲而恣意,她说,南官稚,你爱上了我对不对?南宫稚就狠狠把她从窗台上拽下来,看着她重重落在地板上。