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991.
Describing behaviors as reflecting categories (e.g., asking children to “be helpers”) has been found to increase pro-social behavior. The present studies (= 139, ages 4–5) tested whether such effects backfire if children experience setbacks while performing category-relevant actions. In Study 1, children were asked either to “be helpers” or “to help,” and then pretended to complete a series of successful scenarios (e.g., pouring milk) and unsuccessful scenarios (e.g., spilling milk while trying to pour). After the unsuccessful trials, children asked to “be helpers” had more negative attitudes. In Study 2, asking children to “be helpers” impeded children's helping behavior after they experienced difficulties while trying to help. Implications for how category labels shape beliefs and behavior are discussed.  相似文献   
992.
Understanding the prevalence and demographic correlates of physical activity is important for public health and epidemiological research. This analysis examines the association between acculturation and physical activity in a large (approximately 5,000) sample of Hispanic adults from the 2000 National Health Interview Survey. Scores for eight questions concerning language use were summed to produce an acculturation index. Factor analysis indicated that these questions assessed a single underlying construct. Self-reported adherence to recommendations concerning leisure time physical activity increased from 22. 6% in the least acculturated tertile to 47% in the most acculturated tertile. In contrast, prevalence of walking or bicycling for errands decreased from 25.2 to 18.2%, and prevalence of standing or walking during most of the day decreased from 82.8 to 65.6% as acculturation increased. Thus, patterns of physical activity associated with leisure versus nonleisure time differed among Hispanics with varying acculturation levels. Alternatively, cultural factors may have differential effects on responses to questions concerning leisure and nonleisure time physical activity. In either case, assessing both types of activity is important for monitoring and understanding Hispanic health behaviors and interpreting epidemiological studies that involve physical activity in Hispanics.  相似文献   
993.
This article examines a sample of educational source materials meant to be used to foster the inclusion of Arab American components in multicultural curriculum. Even though the materials examined can be thought of as good sources (in that they did not provide outright biased misinformation), the authors identify three general areas of concern: (a) conflating, (b) essentializing, and (c) normalizing. Conclusions and recommendations include the need for more focused source material on limited subject areas, focused curriculum development on particular cultural groups, and the use of multicultural materials to promote cultural self-reflection rather than emphasizing the objectification of other groups. Although the focus of this article is on Arab American source materials, our findings can be generalized to source materials on other cultural and ethnic groups.  相似文献   
994.
Abstract

This paper is a case study of the shutdown of HOME (the House for Migrant Workers' Empowerment), a cultural and service center for migrant workers. HOME was founded by the Taipei City Labor Bureau (TCLB) and subcontracted to TIWA (the Taiwan International Workers' Association) in 2002, when the Director of the TCLB was the former labor activist Zheng Cun‐qi. For migrant domestic workers, the distinction between sold‐time and free‐time (i.e. the work–rest distinction) is blurred. Most of their supposedly private reproductive activities are temporally squeezed into holidays and spatially forced into public places where they are exposed to the scrutiny of the Taiwanese. This peculiar situation of private/public inversion not only results from, but also serves to reinforce, racial discrimination and class inferiority in their workplace (i.e. the homes of their employers). I use the concept of ‘bracketing’ to describe the spatial‐temporal strategies used by migrant domestic workers against this distorted inversion. I also analyze how employers ‘counter‐bracket’ migrant worker subjects as a counter strategy. HOME once existed as a ‘surrogate home’, providing shelter for migrant workers and allowing them to retain privacy during their days off. TIWA conducted organizing‐oriented cultural and political activities to assist the migrants in forming their own community, and challenged the spatial hegemony of real estate owners in the ChungShan District. However, when Yan Shang‐luan, a well‐known feminist labor research professor, took over the directorship of the TCLB in 2004 Taipei City Labor Bureau. 2004. “‘Minutes of the meeting for the analysis, review, and evaluation of administrative efficiency at the House for Migrant Workers' Empowerment’ ‘”. 26 August [Google Scholar], she did not appreciate the function of HOME, and decided to close its doors. In analyzing the official rhetoric in the documents of the TCLB, I find that their decision to shut down HOME was a result of their middle‐class temporal‐spatial ‘habitus’. The shutdown became a counter‐bracket measure, which coincided with the real estate interests of the ChungShan local elites.  相似文献   
995.
There are several ways of carrying the ball in rugby union, which could influence the speed at which a player can run. We assessed 52 rugby players (34 males, 18 females) during a maximum sprint over 30 m without the ball, with the ball under one arm, and with the ball in both hands. Timing gates were used to measure time over the initial 10 m and the last 20 m. It has previously been reported (Grant et al., 2003) that running with the ball produces a slower sprinting speed than running without the ball. We hypothesized that the decrease in speed caused by carrying the ball would become less marked with the experience of the player. The male and female players were each divided into two groups: a "beginner" group that consisted of players in their first or second season and an "experienced" group that was composed of players who had played for more than two seasons. A 2 x 3 mixed-model analysis of variance was used to identify differences (P < 0.01) between the beginner and experienced groups in the three sprinting conditions. The times for the males for the first 10 m sprints without the ball, with the ball under one arm, and with the ball in both hands were 1.87 +/- 0.08 s, 1.87 +/- 0.08 s, and 1.91 +/- 0.1 s for the beginners, and 1.87 +/- 0.1, 1.88 +/- 0.1 and 1.88 +/- 0.12 for the more experienced players respectively. The times for the females for the first 10 m without the ball, with the ball under one arm, and with the ball in both hands were 2.13 +/- 0.16 s, 2.19 +/- 0.17 s, and 2.20 +/- 0.16 s for the beginners, and 2.03 +/- 0.12 s, 2.03 +/- 0.09 s, and 2.04 +/- 0.1 s for the more experienced players respectively. For the last 20 m of the 30-m sprint, there were differences between the different sprint conditions (P < 0.001) but no differences that were attributable to experience (P = 0.297). The times for the males over the last 20 m without the ball, with the ball under one arm, and with the ball in both hands were 2.58 +/- 0.19 s, 2.61 +/- 0.12 s, and 2.65 +/- 0.12 s for the beginners, and 2.59 +/- 0.12, 2.62 +/- 0.23, and 2.65 +/- 0.18 s for the more experienced players respectively. The times for the females over the last 20 m without the ball, with the ball under one arm, and with the ball in both hands were 3.25 +/- 0.38 s, 3.35 +/- 0.42 s, and 3.40 +/- 0.46 s for the beginners, and 3.04 +/- 0.32 s, 3.06 +/- 0.22 s, and 3.13 +/- 0.27 s for the more experienced players respectively. No gender-specific differences were detected. The results of this study suggest that practising sprints while carrying a ball benefits the early phase of sprinting while carrying the ball.  相似文献   
996.
Whereas exercise-induced mood enhancement has been well documented, the relationship between mood and exercise participation is less well understood. Mood states influence evaluative judgments that could plausibly influence a decision to exercise. Further, most exercise-mood research is limited to normal weight adults in response to a single exercise session. The current investigation examines the influence of (a) morning mood on exercise, (b) exercise intensity/duration on mood enhancement, and (c) daily change in mood on exercise days compared with nonexercise days in obese behavioral weight loss program (BWLP) participants. Participants (N = 36) recorded morning, evening, and pre-and postexercise mood, as well as the type, duration, and intensity of exercise. Within-person analyses indicated that (a) morning mood was associated with an increased likelihood of exercising, (b) mood ratings were higher following exercise of greater intensity and duration, and (c) daily mood enhancement was associated with greater exercise initiation and greater exercise intensity. Measuring mood before and after exercise may yield important clinical information that can be used to promote physical activity in obese adults.  相似文献   
997.
The purpose of the study was to determine whether multidimensional perceptual-cognitive skills training, including situational awareness, anticipation, and decision making, improves on-court performance in older adults when compared with a physical training program, including stroke and footwork development. Senior tennis players (N = 27) were randomly assigned to one of three groups: perceptual-cognitive skills training, technique-footwork training, or no training. Results indicated that participants receiving perceptual-cognitive skills training had significantly faster response speeds, higher percentage of accurate responses, and higher percentage of performance decision making in posttest match situations. Findings provide clear evidence that perceptual-cognitive skills can be trained in aged individuals. Implications and suggestions for future research are offered.  相似文献   
998.
Hyperspectral imaging can be an important tool for the assessment and documentation of the state of preservation of an object. Over time, documents that have experienced heavy usage will inevitably show evidence of handling, which can include staining. In this paper, the use of hyperspectral imaging is described for enhancing the assessment of the visual properties of stains. The use of imaging software (ENVI) is also described for quantitatively assessing the extent of staining in two different documents. Single 10 nm bandpass images can be useful assessing darker stains with well defined boundaries. In one document (a treaty), the faint discolouration on one page made the extent of staining difficult to assess visually. A false colour density slice (450 nm) provided a topographical image which was useful for enhancing the contrast between stained and unstained paper. In this type of image, the degree of discolouration could be correlated to optical density and the amount of staining on a page could then be related to the number of pixels for a given absorbance range. In a second document (a prayer book), the staining was more extensive and some of the stains were dark in appearance. This document also contained a lot of text that was written using a dark irongall ink, which limited the use of a density slice at a single bandpass. In this document, pixel unmixing was successfully used to quantitatively determine the extent of staining. The measurement tool provided with the Nuance? Imaging System made it possible to quantitatively describe the size of the stain in terms of the number of pixels as well as its appearance in terms of average optical density.  相似文献   
999.
Money is an ‘instrument of collective memory’ before it is a means of exchange, a unit of account or a store of value. Money's status as a memory technology is particularly significant in light of the role that information and communication technologies now play in economic transactions. Many of the new channels and infrastructures for payments, such as magnetic cards, mobile phones, the wired Internet, social media platforms, and RFID technologies, record detailed transactional data alongside a range of other identifying data. We now have extremely detailed records of the many ways that money circulates, is transferred and is spent. This paper concerns this previously latent transactional data and how it is currently recorded, monetised, and used to inform action. What has been recorded in and about money at different moments in time and how are these categories breaking down? Who has access to and ownership over this collectively produced record and how is it driving new data practices and business models based on the monetisation and application of monetary records? And how might re-engaging with money's mnemonic status help to foreground a politics and ethics of transactional data?  相似文献   
1000.
Participation in organized sport and recreational activities presents an innate risk for serious morbidity and mortality. Although death during sport or physical activity has many causes, advancements in sports medicine and evidence-based standards of care have allowed clinicians to prevent, recognize, and treat potentially fatal injuries more effectively. With the continual progress of research and technology, current standards of care are evolving to enhance patient outcomes. In this article, we provided 10 key questions related to the leading causes and treatment of sudden death in sport and physical activity, where future research will support safer participation for athletes and recreational enthusiasts. The current evidence indicates that most deaths can be avoided when proper strategies are in place to prevent occurrence or provide optimal care.  相似文献   
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