How does the size and shape of local populations in China compare to general anthropometric surveys currently used for product design?

Anthropometry has long been used for a range of ergonomic applications & product design. Although products are often designed for specific cohorts, anthropometric data are typically sourced from large scale surveys representative of the general population. Additionally, few data are available for emerging markets like China and India. This study measured 80 Chinese males that were representative of a specific cohort targeted for the design of a new product. Thirteen anthropometric measurements were recorded and compared to two large databases that represented a general population, a Chinese database and a Western database. Substantial differences were identified between the Chinese males measured in this study and both databases. The subjects were substantially taller, heavier and broader than subjects in the older Chinese database. However, they were still substantially smaller, lighter and thinner than Western males. Data from current Western anthropometric surveys are unlikely to accurately represent the target population for product designers and manufacturers in emerging markets like China.     

A study of automotive workers anthropometric physical characteristics from Mexico Northwest

Due to the lack of anthropometric information in northwest Mexico, we did an anthropometric study that represents the population physical characteristics and that is reliable for the design or redesign of workstations. The study was divided in two phases. The first one was the anthropometric study of 2900 automotive industry workers in northwest of Mexico. The study includes 40 body dimensions of 2345 males and 555 females personalized to be used in future researches. Second phase includes compared anthropometric characteristics of population reported in four Mexican studies and a Colombian study against the current study. Benefits of this project are: a reliable database of anthropometric characteristic of automotive industry population for workstations design or redesign that match with the users, increase product quality and reduce economic, medical and union complains.     

Work-related upper extremity injuries: prevalence,cost and risk factors in military and civilian populations

Persons with musculoskeletal-related disorders represent a prevalent source of outpatient visits, lost work time and disability in the military; however, research concerning the extent of work-related upper extremity disorders (WRUEDs) within this population is lacking. This literature review examined studies in civilian and military settings to ascertain the prevalence, cost and risk factors associated with WRUEDs. The results indicated that the prevalence and cost of WRUEDs in the civilian workforce are significant, justifying the need to research the military population. The literature also outlined physical, individual and psychosocial factors associated with WRUEDs that will help identify potential risk factors within military occupations.     

Externaliser la défense : la politique américaine

This analysis of the thoroughgoing change effected in the US defense industry shows that the Pentagon’s traditional partners are taking a back seat behind private, for-profit service providers. These firms, which provide military services and the “information technology” necessary for modern warfare, now play a key role in the American national security system. Among the factors accounting for this unprecedented sharing of a classical government prerogative with private firms are the redefinition of the government’s role, the technological revolution and the strategic environment related to the global war against terrorism. This role-sharing brings new forces into play. The Defense Department is externalizing strategic activities without all the legislative and institutional means for regulating them, whence the risk of a crisis in the military establishment. The mixed systems coming out of this change are a driving force in altering the civilian and military capability to project power and intervene in the world.     

利益、信息与偏好:美军与安巴尔部落镇压叛乱的代理人战争

2006年至2008年,美军与伊拉克安巴尔部落在打击“伊拉克伊斯兰国”的过程中发展出代理关系。本文尝试从利益、信息与偏好三个维度来观察和理解美军与当地部落之间复杂的互动关系。在美军与当地部落的互动过程中,双方之间的利益匹配脆弱,在未受到“伊拉克伊斯兰国”威胁和美军持续激励的情况下,当地部落几乎不会遵从美军的偏好行事,这一潜在分歧在“伊拉克伊斯兰国”被严重削弱后逐渐凸显;当地部落拥有非对称信息优势,致使美军对部落的自主行为缺乏有效监督;安巴尔部落之间存在的偏好异质问题,阻碍了它们设置代理议程并采取集体行动。总体上看,双方的合作仍采用应急反应策略,尚未形成以长远利益为基础的稳固代理关系。     

Veteran Status,Race‐Ethnicity,and Marriage Among Fragile Families

We used data from the Fragile Families and Child Wellbeing Study (N = 2,679 ) to examine the impact of men's past military service on the likelihood that a couple will marry within 5 years of a nonmarital birth. Logistic regression analyses showed that men's past military service increased marriage odds by 54% for couples with Black fathers even after controlling for potential mediators. But veteran status had no effect on couples with White or Hispanic fathers. As a result, the large Black‐White gap in postbirth marriage evident among couples with civilian fathers did not exist among couples with veteran fathers. Our findings bolster other evidence that military service exerts lasting and unique pro‐marriage effects on Blacks.     

Computer re-sampling for demographically representative user populations in anthropometry: a case of doorway and clear floor space widths

Anthropometric studies typically require a large number of individuals that are selected in a manner so that demographic characteristics that impact body size and function are proportionally representative of a user population. This sampling approach does not allow for an efficient characterization of the distribution of body sizes and functions of sub-groups within a population and the demographic characteristics of user populations can often change with time, limiting the application of the anthropometric data in design. The objective of this study is to demonstrate how demographically representative user populations can be developed from samples that are not proportionally representative in order to improve the application of anthropometric data in design. An engineering anthropometry problem of door width and clear floor space width is used to illustrate the value of the approach.     

Military EAPs:

A review of recent developments and future trends in military family services is of interest since the military is the largest single employer in the United States, providing health, mental health, recreational and social services to an estimated 13.2 million persons or over 5% of the national population. Rapid program development is taking place in the military, focused on services to the total family for the purpose of supporting the well-being of active duty personnel. This paper examines several issues related to the growing opportunities for social workers in military family services, including potential values conflicts, needs assessments, relations between military and civilian service providers, and avoiding culture shock.     

Why has the prevalence of obesity doubled?

The prevalence of obesity has doubled over the last 25 years. We estimate the effects of multiple socio-environmental factors (e.g., physical demands at work, restaurants, food prices, cigarette smoking, food stamps, and urban sprawl) on obesity using NLSY data. Then we use the Oaxaca–Blinder decomposition technique to approximate the contribution of each socio-environmental factor to the increase during this time. Many socio-environmental factors significantly affect weight, but none are able to explain a large portion of the obesity increase. Decreases in cigarette smoking consistently explains about 2–4 % of the increase in obesity and BMI. Food stamp receipt also consistently affects the measures of weight, but the small decrease in food stamp program participation during the period we examine actually dampened the increases in obesity and BMI. Collectively, the socio-environmental factors we examine never explain more than about 6.5 % of the weight increases.     

Alcohol Use after Combat-Acquired Traumatic Brain Injury: What We Know and Don't Know

Military personnel engage in unhealthy alcohol use at rates higher than their same age, civilian peers, resulting in negative consequences for the individual and jeopardized force readiness for the armed services. Among those returning from combat deployment, unhealthy drinking may be exacerbated by acute stress reactions and injury, including traumatic brain injury (TBI). Combat-acquired TBI is common among personnel in the current conflicts. Although research suggests that impairments due to TBI leads to an increased risk for unhealthy drinking and consequences among civilians, there has been little research to examine whether TBI influences drinking behaviors among military personnel. This article examines TBI and drinking in both civilian and military populations and discusses implications for clinical care and policy.     

Evaluation of strategies to mitigate contagion spread using social network characteristics

Computer simulation is an effective tool for assessing mitigation strategies, with recent trends concentrating on agent-based techniques. These methods require high computational efforts in order to simulate enough scenarios for statistical significance. The population individuals and their contacts determined by agent-based simulations form a social network. For some network structures it is possible to gain high accuracy estimates of contagion spread based on the connection structure of the network, an idea that is utilized in this work. A representative social network constructed from the 2006 census of the Greater Toronto Area (Ontario, Canada) of 5 million individuals in 1.8 million households is used to demonstrate the efficacy of our approach. We examine the effects of six mitigation strategies with respect to their ability to contain disease spread as indicated by pre- and post-vaccination reproduction numbers, mean local clustering coefficients and degree distributions. One outcome of the analysis provides evidence supporting the design of mitigation strategies that aim to fragment the population into similarly sized components. While our analysis is framed in the context of pandemic disease spread, the approach is applicable to any contagion such as computer viruses, rumours, social trends, and so on.     

Effects of a participatory ergonomics intervention computer workshop for university students: a pilot intervention to prevent disability in tomorrow's workers

A participatory approach was used to create a computer ergonomics workshop for college students, incorporating an instructional systems design process and adult learning inquiry perspectives. The primary objective of this participatory ergonomic pilot intervention was to involve students throughout the training design process in solving computer workstation ergonomic problems and adopting healthy computing behaviors. Students' level of participation included becoming part of the training design team, a co-facilitator, or a student trainee. A second objective was to examine the translation of an industrial office ergonomics training program into a college computer ergonomics training program. The long term goal was to reduce upper extremity symptoms and disability. The program was piloted at one private university. The three student trainees significantly increased their knowledge of computer ergonomics from 69% of test items answered correctly pre-training to 82% post-training. Trainees were also successful in conducting computer ergonomic evaluations of students' computing work areas. They achieved 100% accuracy in identifying ergonomic problems and proposing solutions in five ergonomic workstation assessments in the field. This approach was successful in creating a sense of ownership among the student developers and facilitators as reflected in their self-reports during a post-intervention debriefing. The results of this pilot study justify formal controlled trials of this intervention in university students, who will become tomorrow's workers.     

Perceptions of Equal Opportunity among Women and Minority Army Personnel

Equal opportunity (EO) is recognized by the Department of Defense (DoD) as being crucial to maintaining a high state of military readiness. In the last two and a half decades, a number of EO initiatives have been employed by the DoD and each of the military services in an effort to promote fair treatment of minorities and women. Social science literature suggests that the integration of racial minorities, particularly African American males, is a military success story. Some social scientists argue convincingly that the military has far surpassed civilian organizations in integrating African Americans. While the U.S. military has had a long history of addressing racial issues, problems concerning gender have only recently been addressed on a large scale. Some scholars assert that the military is the last male bastion in the United States. It lags behind the civilian sector in integrating women. This study examines the perceptions of active‐duty men and women in the U.S. Army to determine whether minority men are more satisfied with the equal opportunity climate than women and whether minority women are less satisfied with the equal opportunity climate than non‐minority (White) women. The purpose of this study is twofold: One objective is to examine differences within the gender category, i.e., African American, Hispanic, and White women. The other objective is to explore differences across gender. Degree of satisfaction is measured by responses to items on the Military Equal Opportunity Climate Survey (MEOCS). The data were stratified by rank level, officer and enlisted, and a General Linear Model (GLM) was performed with race, gender, and the interaction of race and gender as independent variables. In the final analysis, the data were stratified by paygrade, and a GLM was performed on each part separately. Among the findings, race is a more powerful predictor of the attitudes of active‐duty men and women toward the EO climate in their units than either gender or the interaction of race and gender. While gender is significant in most of the statistical models, and the interaction of gender and race is sometimes significant, these variables explain less than one percent of the variance. Although African American men are generally more satisfied with the EO climate than African American women, they are less satisfied than White and, in some cases, Hispanic men and women.     

A practical approach to the assesment of manual handling equipment for cargo: multinational abrasives in Brazil

The Manual Handling of Loads is an activity present in virtually all production system, when developed without ergonomic principles of design and sizing can generate several instances of discomfort and musculoskeletal disorders. This work was carried out to measure, set limits and risks and guide specifications for the cargo handling carts in a specific company, tracing the anthropometric profile of the productive population and performing a quantitative evaluation of forces and design models of cars used in the company.     

Anthropometric aspects of body seated in school

This study aimed to assess the student-furniture interface from anthropometric parameters of the sitting posture. The sample was composed of 887 students from two public schools in the State of Parana-Brazil, which attended children from 7 to 17 years of age. The data collection used anthropometric measures of the sitting position, a questionnaire containing a human body diagram for indication of discomfort areas and photographic records to verify postural and ergonomic inadequacies in classroom. The following anthropometric variables were measured: popliteal height, sacro-popliteal length, hip width, lumbar support height, and elbow and thigh height. Percentiles 5 and 95 of anthropometric variables showed differences statistically significant, with variation coefficient greater than 30%. In relation to body discomfort, the highest occurrences were recorded for ankle, knees and shoulder joints as well as for spine and buttocks. It was concluded that children use school furniture that does not meet their anthropometric standards, which favored the adoption of incorrect postures and contributed to the emergence of musculoskeletal problems that can interfere with their educational process.     

Culturally meaningful networks: on the transition from military to civilian life in the United Kingdom

This article introduces the Culturally Meaningful Networks (CMN) approach. Following a pragmatist perspective of social mechanisms more broadly, it develops and demonstrates an approach to understanding networks that incorporates both structure and meaning and that leverages time to understand how these aspects influence each other. I apply this approach to investigate a longstanding puzzle about why some of those who leave military service for civilian life fare well, and others badly. In a mixed-methods analysis, I follow a sample of individuals moving through the transition from military to civilian life in the contemporary United Kingdom. I find that the higher the proportion of alters (i.e., “contacts”) with a military background in the networks of leavers before discharge, the worse they fare after discharge. The CMN approach helps me locate a specific structural embedding that explains the presence or absence of durable cultural frames that set the context for the actual experience of the transition and cause problems during it. Attention to the temporal unfolding of network structure and social meaning is essential to bringing out this finding. By re-embedding networks within people’s experiences over time, the CMN approach helps grasp the distinctions by which leavers understand their interactions. I conclude by arguing that the CMN approach has implications for network sociology and cultural sociology that go beyond this substantive case.     

Becoming Overweight without Gaining a Pound: Weight Evaluations and the Social Integration of Mexicans in the United States

Mexican women gain weight with increasing duration in the United States. In the United States, body dissatisfaction tends to be associated with depression, disordered eating, and incongruent weight evaluations, particularly among white women and women of higher socioeconomic status. However, it remains unclear how being overweight and obesity are interpreted by Mexican women. Using comparable data of women aged 20–64 from both Mexico (the 2006 Encuesta Nacional de Salud y Nutricion; N = 17,012) and the United States (the 1999–2009 National Health and Nutrition Examination Surveys; N = 8,487), we compare weight status evaluations among Mexican nationals, Mexican immigrants, US‐born Mexicans, US‐born non‐Hispanic whites, and US‐born non‐Hispanic blacks. Logistic regression analyses, which control for demographic and socioeconomic variables and measured body mass index and adjust for the likelihood of migration for Mexican nationals, indicate that the tendency to self‐evaluate as overweight among Mexicans converges with levels among non‐Hispanic whites and diverges from blacks over time in the United States. Overall, the results suggest a US integration process in which Mexican‐American women's less critical self‐evaluations originate in Mexico but fade with time in the United States as they gradually adopt US white norms for thinner body sizes. These results are discussed in light of prior research about social comparison and negative health assimilation.     

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.     

Estimating trends in US income inequality using the Current Population Survey: the importance of controlling for censoring

We analyze trends in US size-adjusted household income inequality between 1975 and 2004 using the most commonly used data source—the public use version of the March Current Population Survey. But, unlike most researchers, we also give substantial attention to the problems caused by the topcoding of each income source in the CPS data. Exploiting our access to Census Bureau internal CPS data, we examine estimates from data incorporating imputations for topcoded incomes derived from cell means and estimates from data multiply-imputed from parametric distribution models. Our analysis yields robust conclusions about inequality trends. The upward trend in US income inequality that began in the mid-1970s and increased in the 1980s slowed markedly after 1993.