We performed a randomized, cross-over controlled trial to assess the effect of Oleoresin capsicum (OC) spray inhalation on respiratory function by itself and combined with restraint. Thirty-five subjects were exposed to OC or placebo spray, followed by 10 min of sitting or prone maximal restraint position (PMRP). Spirometry, oximetry, and end-tidal CO2 levels were collected at baseline and throughout the 10 min. Data were compared between groups (ANOVA) and with predefined normal values. In the sitting position, OC did not result in any significant changes in mean percent predicted forced vital capacity (%predFVC), percent predicted forced expiratory volume in 1 s (%predFEV1), oxygen, or CO2 levels. In PMRP, mean %predFVC and %predFEV1 fell 14.4 and 16.5% for placebo and 16.2 and 19.1% for OC, but were not significantly different by exposure. There was no evidence of hypoxemia or hypercapnia in either groups. OC exposure did not result in abnormal spirometry, hypoxemia, or hypoventilation when compared to placebo in either sitting or PMRP. 相似文献
Massive pulmonary embolism in cancer patients can be due to detached thrombi or tumor. Pulmonary tumor embolism is often undiagnosed antemortem. We report a 52-year-old Chinese man admitted for management of hepatocellular carcinoma (HCC). Computerized tomography showed tumor involvement of hepatic vein and inferior vena cava. He died suddenly on the day of admission. At autopsy the main pulmonary arteries of both lungs were blocked by large tumor emboli, the immediate cause of death. Although rapid death in patients with HCC is usually caused by intraperitoneal hemorrhage from spontaneous rupture of tumor, massive pulmonary tumor embolism should also be considered in these patients, especially when antemortem evidence of hepatic vein and/or inferior vena cava invasion is present. 相似文献
Throughout the last century, there has been a marked decline in obstetric maternal deaths, resulting in an increase in the proportion of nonobstetric deaths among pregnant women. Trauma, in particular, has become a leading cause of maternal death. We report the case of a 20-year-old primigravid woman who was involved in a motor vehicle crash at 36 weeks gestation. The woman developed abruptio placentae, followed by disseminated intravascular coagulation, adult respiratory distress syndrome, and shock, and died the day after the crash. Widespread pulmonary embolization by chorionic villi was identified at autopsy. This report discusses traumatic maternal deaths, with emphasis on the differences in injury pattern observed in pregnant trauma victims in comparison with other adults. It is important that the pathologist be aware of these problems so that an accurate cause of death can be identified in cases of maternal death after trauma. Also discussed is the relationship between trauma and placental abruption and the mechanism of death in the patient. To the authors' knowledge, this is the first reported case of extensive embolism of chorionic villi to the lungs after trauma. 相似文献
Capital budgeting techniques are useful tools to municipal administrators in managing organizational resources. A survey of capital budgeting practices of Canadian municipal governments reveals that a minority used capital budgeting techniques; payback period dominates over discounted cash flow analysis in evaluating capital investments; and pitfalls are common in its application. More specifically, there is an emphasis of quantitative/financial items over qualitative/intangible factors. In this study, the analytic hierarchy process, a multi-attribute decision model that accounts for both tangibles and intangibles, is presented as a tool for capital budgeting decisions such that resource allocation becomes more effective in municipal governments. 相似文献
Two hundred and fifty-nine gifted adolescents were assessed on their emotional intelligence and social coping strategies using the Emotional Intelligence Scale (N. S. Schutte et al., Personality and Individual Differences, 25, 167–177, 1998) and the Social Coping Questionnaire (M. A. Swiatek, Gifted Child Quaterly, 39, 154–161, 1995). An item factor analysis yielded four dimensions of emotional intelligence, leading to the construction of 4 empirical scales of emotional intelligence. Students scored most highly on Social Skills and Self-Management of Emotions, followed by Empathy, and Utilization of Emotions. In coping with their being gifted, students endorsed to different degrees their use of 6 coping strategies, which were Valuing Peer Acceptance, Involvement in Activities, Attempting Avoidance, Denying Giftedness, Prizing Conformity, and Discounting Popularity. Social Skills emerged as the most important component of emotional intelligence predicting the use of strategies of Valuing Peer Acceptance and Involvement in Activities. Implications of the findings for enhancing emotional intelligence of adolescents in coping with problems arising from their being gifted and the need for further studies using longitudinal data are discussed. 相似文献
This study explored the relationships among IQ, perceptions of giftedness, and self-concepts in a sample of 116 Chinese junior secondary school students in Hong Kong. These students, nominated by their schools to join the university gifted programs, were assessed on their IQ, global and domain-specific self-concepts, as well as their perceptions of their own giftedness in terms of their concern for feeling different, their critical attitude in evaluating their own performance, and their experience of high expectation to achieve from their parents. The findings indicated that in general the ways students perceived their giftedness affected differentially global self-worth and specific self-concept domains. While difference concern and critical evaluation affected students' specific self-concepts adversely, high parental expectation had a more positive influence. Self-concept domains related to social acceptance and friendship issues were most strongly and adversely affected. Implications of the findings for interventions to enhance the self-esteem of gifted students through restructuring their perceptions of giftedness are discussed. 相似文献
Popular rendition of the so-called Thucydides’ Trap focuses excessively on only one possible explanation of interstate wars to the exclusion of others. It also commits various acts of commission and omission that threaten the validity of its central proposition. This essay reviews some of the major problems pertaining to the logic of inquiry characteristic to this genre of analysis, its interpretation of historical evidence, and its neglect of alternative explanations of war – even those that Thucydides had written about in his account. There is a danger of self-fulfilling prophecy to the extent that leaders in Beijing and Washington are inclined to believe in an analogy to an ancient war that happened some 2500 years ago. Conventional invocations of Thucydides’ Trap fail to recognize that there are several possible pathways to war. Because they offer only a structural explanation based on interstate power shifts, they give short shrift to the role of human agency and fail to attend sufficiently to what leaders can do to avoid conflict.
ABSTRACT?In the spring of 2010, the strike of the Honda workers in Nanhai instigated an on-going discourse on the “rights awakening” of the “new generation of migrant workers.” Since then, much has been written about these young workers, generally described as more pro-active and ready to stand up against their employers than the older and more subservient generation. Drawing from statistical findings from two factory-gate surveys in the metal mechanics and garment sectors in Shenzhen, this paper tests two hypotheses: (a) that workers of the younger generation are more cognizant of their legal rights than older workers; (b) that the younger generation wants to work fewer hours and to enjoy life more. We argue that this popular image of the younger generation of migrant workers is one-dimensional and reductive, as it focuses only on generational differences as an explanatory factor for worker activism, while ignoring other issues such as types of industries and payment systems. In this paper, we purport that these elements play important roles in shaping the attitude of this younger generation toward their work and rights. 相似文献