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Reconstructing traumatic thoracic events, especially when soft tissues are absent, requires an advanced understanding of ribcage fracture patterns. The morphology and orientation of ribs complicate the fracture pattern, as a single blow often causes multiple fractures at various locations. Furthermore, fracture types observed in ribs are not explained easily by current bone biomechanic literature. Using evidential skeletal material archived at the Regional Forensic Center, Memphis, the ribs of 43 blunt force trauma cases were analyzed. A total of 195 incomplete fractures and 63 buckle fractures were noted. Incomplete fractures, previously thought to be common in children but rare in adults, were found among individuals ranging in age from 21-76 years. A buckle fracture, failure resulting from compressive instability, has been undefined previously in bone trauma literature but was repeatedly observed in this sample. This study elucidates recognizable rib fracture patterns while emphasizing gross bone examination for force and mechanical factors. 相似文献
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Roy Love 《Development in Practice》1999,9(3):296-309
The paper argues that the increase in official development assistance to South Africa following its transition to majority rule was largely at the expense of other countries in the region. While this refocusing of aid has been aimed at disadvantaged black groups, it will also reinforce the regional dominance of the South African economy. Aid to Botswana, Lesotho, and Namibia has also become far more concentrated on human resource investment than on, for example, assistance for industrial development. It is argued that this will create a skill base which will benefit South African business expansion and which, when placed in the context of liberalised trade regimes, will tend to favour those already well placed in market terms who will often be white, male, and South African. Only a properly coordinated gender- and poverty-sensitive regional aid programme will help to counterbalance the polarisation in favour of established South African business interests that seems the likely consequence of present policies. 相似文献
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This study examined the relationship between mothers' eating attitudes and weight-loss attempts and their adolescent daughters' body dissatisfaction and weight-loss attempts. Two modes of transmission of mother's values to the daughter (modeling and encouragement) and two forms of weight-loss behavior (moderate and extreme) were examined. Female 10th and llth graders and their mothers completed eating attitudes and behaviors questionnaires. Daughter's moderate weight-loss attempts (e.g., dietary restraint and exercising) and its associated body dissatisfaction were significantly associated with mother's encouraging her daughter to lose weight. In contrast, daughter's more extreme weight-loss behaviors (e.g., fasting, crash dieting, and skipping meals) were predicted by mother's reports of her own body dissatisfaction and mother's use of extreme weight-loss behaviors herself. These effects were not simply an artefact of daughter's body weight. Implications for theory and prevention were noted. 相似文献
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