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31.
Chronic Alcohol Abuse Leads to Low Bone Mass with No General Loss of Bone Structure or Bone Mechanical Strength, 下载免费PDF全文
Maiken Parm Ulhøi M.D. Karoline Meldgaard M.D. Ph.D. Torben Steiniche M.D. D.M.Sc. Anders Odgaard M.D. D.M.Sc. Annie Vesterby M.D. D.M.Sc. 《Journal of forensic sciences》2017,62(1):131-136
Chronic alcohol abuse (CAA) has deleterious effects on skeletal health. This study examined the impact of CAA on bone with regard to bone density, structure, and strength. Bone specimens from 42 individuals with CAA and 42 individuals without alcohol abuse were obtained at autopsy. Dual‐energy X‐ray absorptiometry (DEXA), compression testing, ashing, and bone histomorphometry were performed. Individuals with CAA had significantly lower bone mineral density (BMD) in the femoral neck and significantly lower bone volume demonstrated by thinner trabeculae, decreased extent of osteoid surfaces, and lower mean wall thickness of trabecular osteons compared to individuals without alcohol abuse. No significant difference was found for bone strength and structure. Conclusion: CAA leads to low bone mass due to a decrease in bone formation but with no destruction of bone architecture nor a decrease in bone strength. It is questionable whether this per se increases fracture risk. 相似文献
32.
This paper presents a preliminary framework for analyzing how values in the public sector change over time. The specific dynamics are conceptualised as three types of change mechanisms: a teleological, a conflictual and a value-internal change mechanism. Choice of governance systems – hierarchy, clan, network or market - is an example of designing control systems to promote particular values. Another change mechanism is rooted in conflicts between values and the actors carrying these values leading to various organisational responses. Finally, influenced by basic properties of a value changes may follow several distinct patterns such as life cycles, pendulum dynamics, enlargement of scope, refinement and turbulence. The possible outcomes of value dynamic processes are basically changes in value configurations: crowding out, sedimentation, the core-periphery hypothesis, division of labour, and re-interpretation. The paper uses examples from a Danish context, but argues that the value dynamics identified have a more universal scope. 相似文献
33.
Lotte Bøgh Andersen Torben Beck Jørgensen Anne Mette Kjeldsen Lene Holm Pedersen 《国际公共行政管理杂志》2013,36(11):715-728
Further integration of the public value literature with other strands of literature within Public Administration necessitates a more specific classification of public values. This article applies a typology linked to organizational design principles, because this is useful for empirical public administration studies. Based on an existing typology of modes of governance, we develop a classification and test it empirically, using survey data from a study of the values of 501 public managers. We distinguish among seven value dimensions (the public at large, rule abidance, balancing interests, budget keeping, efficient supply, professionalism, and user focus), and we find systematic differences between organizations at different levels and with different tasks, indicating that the classification is fruitful. Our goal is to enable more precise analyses of value conflicts and improve the integration between the public value literature and other parts of the Public Administration discipline. 相似文献