3 resultados para Convenient
em DigitalCommons@University of Nebraska - Lincoln
Resumo:
Fewer and fewer Americans produce their own food, yet consumers demand and enjoy a food supply that is flavorful, nutritious, convenient, readily available, safe, abundant, varied, and reasonably priced. Food additives and technology make that possible. This research publication covers what food additive are, why are they used, how they are regulated, and what can individuals do when they are concerned about food additives. It also contains a guide to food additives table.
Resumo:
While leadership is indisputably one of the most pervasive topics in our society, the vast majority of existing research has focused on leadership as a positive force. Taking a follower- centric approach to the study of leadership, we integrate research on the Romance of Leadership and the dark side of leadership by examining followers’ perceptions of aversive leadership in the context of public high schools. Although Meindl, Ehrlich, and Dukerich (1985) demonstrated that the Romance of Leadership also includes the overattribution of negative outcomes to leaders, subsequent research has failed to explore the implications of this potentially darker side of romanticizing leaders. Specifically, we examine perceptions of principals’ aversive leadership and traditional affective, behavioral, and performance outcomes of followers in a sample of 342 dyads. Followers assessed their principals’ leadership behaviors and self-rated their levels of job satisfaction, self-efficacy, and resistance, while principals assessed their followers’ citizenship behaviors, complaining behaviors, and job performance. Results show that perceptions of aversive leadership are positively related to follower resistance and negatively related to followers’ job satisfaction. In addition, a usefulness analysis revealed that follower-rated variables were significantly related to perceptions of aversive leadership above and beyond leader-rated variables, suggesting that the relationship between negative outcomes and aversive leadership may be more constructed than real. In sum, the tendency to romanticize leadership may also lead to a proclivity to readily misattribute or overattribute blame to leadership as a convenient scapegoat for negative outcomes. Alors que le leadership est incontestablement l’un des thèmes les plus envahissants de notre société, la grande majorité des recherches existantes a porté sur le leadership en tant que force positive. En adoptant une approche centrée sur le suiveur dans l’étude du leadership, nous examinant la perception qu’ont les collaborateurs du leadership insupportable dans le contexte des lycées publics. Quoique Meindl, Ehrlich, et Dukerich (1985) aient montré que la Romance du Leadership inclut aussi la surattribution de résultats négatifs aux leaders, les recherches ultérieures ont méconnu les implications de cet aspect potentiellement plus sombre des leaders idylliques. Nous analysons en particulier sur un échantillon de 342 dyades la perception du leadership répulsif du proviseur et les résultats habituels des collaborateurs en rapport avec l’affectivité, le comportement et les performances. Les collaborateurs ont noté les comportements de leadership de leur proviseur et auto-évalué leur niveau de satisfaction au travail, d’efficience et de résistance, alors que les proviseurs appréciaient les conduites de citoyenneté et de revendication, ainsi que la performance professionnelle. Les résultats montrent que la perception du leadership répulsif est Positivement reliée à la résistance du suiveur et négativement à sa satisfaction professionnelle. En outre, une analyse des plus fructueuses a révélé que les variables évaluées par les collaborateurs étaient significativement en relation avec la perception du leadership répulsif, bien plus qu’avec les variables évaluées par les leaders, ce qui indique que la relation entre les résultats médiocres et le leadership négatif serait plus construite que réelle. Au total, le penchant à l’idéalisation du leadership peut aussi bien conduire à une propension à trop facilement condamner à tort et à travers le leadership qu’à la désignation d’un bouc émissaire tout trouvé pour expliquer de mauvais résultats.
Resumo:
Little information is available related to adolescent calcium intake and relationships with injuries they might suffer from sport participation. To determine calcium intake of high school athletes, to assess their self reported injury rates, and to examine the relationship between the two over a 12 month period of time. Participants received a questionnaire at their school and completed it anywhere they found convenient. Adolescent athletes in the Lincoln Public School system (n=43) that participated in at least one sport in the past year. Four age groups participated in the study with sixteen year olds having a significantly higher calcium intake at 1297 mg that of fourteen year olds. A variety of sports were represented with largest number of respondents participating in baseball/or softball at (55%). The next most played sport was basketball at (18%). Median total diet calcium was 1144.5 mg with a mean of 1182 mg + 567 mg. For the frequency of injuries that caused a missed practice or game in the past year, ankle injuries were the most common (25%). Knee injuries were the second most common (17%), followed closely by hand injuries (8%). Mean total diet calcium of athletes with five or more injuries that caused a missed practice or game was significantly higher at 1966 mg (P<.05) than athletes mean diet calcium with zero, one, two, and three injuries. Total milk calcium of those who reported three injuries that resulted in broken or fractured bones or dislocated joints was significantly higher (P<.05) at 1286 mg of total milk calcium than those who reported having zero, one, or two breaks or fractures. Athletes with higher calcium intakes have a higher number of reported injuries. This may be the result of increased vigorous activity which leads to increased calorie and calcium consumption. More importantly, this increased activity leads to an increased chance of injury. The greater calcium intake correlated with greater number of injuries may also be because of third parties advising the athletes who get injured to drink more milk and get more calcium in their diets because they have been injuries already.