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1.

During the past 20 years, primarily Latinos and Asians have immigranted to these shores and settled in urban areas. Media sources assert that this influx created particularly problematic relations between blacks and Asian Americans. Using Frame theory and textual analysis, we explored the images newsmagazines produced of this relationship. We found that one frame predominated: the nature of group relations had to do with each group's “essential”; qualities. Within this frame there also appeared four media packages: 1) the nature of the urban space, 2) the role of culture in the quality of relationships, 3) the essential qualities of urban residents and 4) the preeminence of class over race. Analysis of black‐Asian American relationships, while not strictly hegemonic, rarely deviated from accepted critiques. The nature of the coverage constrained understanding to personal shortcomings, while poverty and racial strife were rarely associated with historical and structural factors.  相似文献   
2.
We have developed a biostrip for determination of urea in serum. The test strip is based on enzymatic assay where urease has been immobilized on the chromatographic paper along with chromogen, phenol red. The chromogen is easily soluble in water and does not require other components for the color change. Serum urea reacts with urease and water to liberate ammonia and carbon dioxide. The liberated ammonia changes the pH of the reaction medium, which is monitored by the chromogen phenol red. A single step working reagent strip has been developed and the reaction is completed within 50 seconds at room temperature. With this test strip urea concentration is measured in serum as low as 0.15 g/L. The speed and convenience of determining urea in serum by this strip instantly makes it well suited for individuals, physicians and emergency centres.  相似文献   
3.
There is a rich body of research devoted to the causes and remedies of social loafing in workplace teams. However, the social loafing phenomenon remains underinvestigated from the perspective of students in undergraduate business classroom teams. In particular, how they define and respond to loafing remains unknown. This article reports findings from a two-stage study that shows social loafing as a more complex construct than current conceptions suggest. Moreover, students avoid confronting loafers and prefer to have instructors administer postpriori justice based on their self-report of individual contributions. Based on the findings and recent writings, the article speculates on the causes of these student responses to social loafing in classroom teams.  相似文献   
4.
The article presents findings from a two‐stage study that examined student perceptions of peer evaluations (PEs) conducted in undergraduate business classroom teams. In stage 1, we used qualitative research to identify constructs focal in students’ PE‐related cognitive schemas and developed grounded measurement scales and hypotheses about their relationships. Then, we implemented PEs in 17 sections of undergraduate business courses taught over seven semesters. The PEs were highly consequential; i.e., they entirely determined the grade each student received on her/his team project. At the end of each semester, we surveyed student perceptions and behaviors using measurement scales we developed after stage 1 of the study. We find that the knowledge of impending PEs leads students to exercise a great deal of care in terms of what they say and do while working with others. The higher levels of care trigger both impression management behaviors and perceptions that others are contributing more. The perceptions that others are contributing more seem instrumental in shaping students’ decision to contribute more themselves. Implications for instructors and future research are discussed.  相似文献   
5.
Apathy and social disconnectedness among undergraduate business students remain poorly understood and under‐researched—despite evidence that they produce an adverse impact on learning‐related outcomes. Qualitative research was initially conducted among a sample of undergraduate business students to identify the antecedents and learning‐related consequences of apathy and social disconnectedness, develop grounded definitions, hypotheses, and scales. This was followed by a survey that aimed to test a conceptual model that emerged from qualitative data. The study finds evidence to suggest that high levels of anxiety among students antecedes social disconnectedness and powerlessness, which trigger apathy or the lack of caring about being a student or attending college. These psychosocial problems are severe enough, the study finds, to adversely impact the quality of students’ learning experiences. Implications for new thinking and research are discussed, and implications for improving instruction are derived from the findings.  相似文献   
6.
This article uses the Chipko movement in northeastern India to propose an additional way to think alternatively about communication and development. The Chipko movement took place in the 1970s. Movement members demanded better local resource management by the state and for a greater voice in the determining the use of the local forests. Acknowledging that alternatives to the dominant paradigm of communication and development already exist (the participatory communication models and the participatory action research models), this essay shows even these alternatives did not address certain problems associated with the dominant paradigm. After a brief review of the dominant paradigm and the alternatives this article examines certain dimensions of the Chipko movement, such as the role of movement leaders, resource management, and strategies of communication, and argues that a Chipko-based ‘regions in protest’ model should take a place among the various models posed as alternatives to the dominant paradigm.  相似文献   
7.
Non-alcoholic fatty liver disease shares many features of metabolic syndrome and its presence could signify a substantial cardiovascular risk above and beyond that conferred by individual risk factors. This study is an attempt to investigate the association of non-alcoholic fatty liver disease with carotid intima-media thickness and plaque as surrogate measures of increased cardiovascular risk. The study was conducted on 645 non diabetic, non alcoholic subjects in the age range of 20–60 years. Metabolic syndrome was assessed by using ATP III and ADA (2005) criteria. Anthropometric factors—waist circumference and blood pressure were measured. Fasting serum samples were analyzed for glucose, triglyceride, cholesterol and its fractions, insulin, alanine and aspartate transaminases, gamma glutamyl transferase and free fatty acids. Insulin resistance and secretion were calculated by homeostasis model and insulin sensitivity by QUICKI index. Liver ultrasonographic scanning was used for assessing fatty liver. Carotid atherosclerosis was assessed by B-mode ultrasonography of common carotid artery and internal carotid artery. The prevalence of non-alcoholic fatty liver disease was 15.6 % in non alcoholic population and 68.5 % of non-alcoholic fatty liver disease had metabolic syndrome, which was associated with hyperinsulinemia, insulin resistance, insulin insensitivity along with elevated levels of waist circumference, blood pressure, triglyceride, FFA and decreased HDL cholesterol. NAFLD patients had markedly greater carotid intima media thickness than non NAFLD subjects with MCIMT of 591.6 ± 108 and 489.5 ± 132.4 μm (P < 0.001) and plaque prevalence of 19.2 and 2.2 %, respectively, thus the carotid intima media thickness is associated with NAFLD.  相似文献   
8.
Metabolic syndrome contributes to pathogenesis of Type-2 diabetes and CAD. Insulin Resistance is the key factor of metabolic syndrome implicated in development of Non Alcoholic Fatty Liver Disease (NAFLD). In present study we have investigated the prevalence of NAFLD in metabolic syndrome and contribution of metabolic risk factors in causation of NAFLD in non-diabetic North Indian male population. The study was conducted on 495 non-diabetic, nonalcoholic subjects (age 30–65 years). Metabolic Syndrome was assessed by using ATP III and ADA (2005) criteria. Anthropometric factors-Waist circumference and blood pressure were measured. Fasting serum samples were analyzed for Glucose, Triglycerides, Cholesterol and its fractions, Insulin, Alanine transaminase, Aspartate transaminase, Gamma glutamyl transferase and free fatty acids. Insulin resistance was estimated by Homeostasis Model and Insulin sensitivity by QUICKI Index. Liver ultrasonographic scanning was used for assessing fatty liver. The prevalence of metabolic syndrome and NAFLD was 24% and 14.8% respectively in non-alcoholic population and 27% of metabolic syndrome had NAFLD which was associated with hyperinsulinemia, insulin resistance, insulin insensitivity along with elevated levels of waist circumference, blood pressure, triglyceride, FFA and decreased HDL-Cholesterol. The prevalence of NAFLD increased with insulin resistance and clustering of metabolic risk factors.  相似文献   
9.
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10.
While teams are common in business school classrooms, scholars note that few instructors provide teamwork-related instruction. The consequent negative experiences may explain the reported cynicism about teamwork among students. This article reports findings from a study that examined the link between a teaching strategy designed to help students function more effectively in teams and its impact on student perceptions of their ability to work collaboratively with others and on their perceptions of their team's effectiveness. The study found evidence to suggest that a teaching strategy designed to help students reach the multiple stages of team development such as high levels of at-stakeness and transparency positively impacts their perceptions and that these stages effectively mediate the link between the strategy and key outcomes.  相似文献   
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