955 resultados para [JEL:J40] Labor and Demographic Economics - Particular Labor Markets - General
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Introduction: The Health Technology Assessment report on effectiveness, cost-effectiveness and appropriateness of homeopathy was compiled on behalf of the Swiss Federal Office for Public Health (BAG) within the framework of the 'Program of Evaluation of Complementary Medicine (PEK)'. Materials and Methods: Databases accessible by Internet were systematically searched, complemented by manual search and contacts with experts, and evaluated according to internal and external validity criteria. Results: Many high-quality investigations of pre-clinical basic research proved homeopathic high-potencies inducing regulative and specific changes in cells or living organisms. 20 of 22 systematic reviews detected at least a trend in favor of homeopathy. In our estimation 5 studies yielded results indicating clear evidence for homeopathic therapy. The evaluation of 29 studies in the domain 'Upper Respiratory Tract Infections/Allergic Reactions' showed a positive overall result in favor of homeopathy. 6 out of 7 controlled studies were at least equivalent to conventional medical interventions. 8 out of 16 placebocontrolled studies were significant in favor of homeopathy. Swiss regulations grant a high degree of safety due to product and training requirements for homeopathic physicians. Applied properly, classical homeopathy has few side-effects and the use of high-potencies is free of toxic effects. A general health-economic statement about homeopathy cannot be made from the available data. Conclusion: Taking internal and external validity criteria into account, effectiveness of homeopathy can be supported by clinical evidence and professional and adequate application be regarded as safe. Reliable statements of cost-effectiveness are not available at the moment. External and model validity will have to be taken more strongly into consideration in future studies.
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The aesthetic outcome of cleft treatment is of great importance due to its complex management and the psychosocial consequences of this defect. The aim of the study was to assess the aesthetic evaluations of patients following cleft surgery by various groups and investigate potential associations of the assessments with life quality parameters. Head photos of 12 adult patients with treated unilateral cleft lip and palate were evaluated by laypeople and professionals. A questionnaire was distributed and answered by the patients and their parents. Intra-panel agreement was high (α > 0.8) for laypeople and professionals. Between-groups agreement was high for both laypeople and professionals, but not when patients and/or parents were tested. Professionals, parents, and patients were more satisfied with patients' appearance than laypeople, although in general all groups were not highly satisfied. Low satisfaction with aesthetics correlated with increased self-reported influence of the cleft in the patients' social activity and professional life (0.56 < rho < 0.74, p < 0.05). These findings highlight the observed negative influence of the cleft on the patient's social activity and professional life and underline the need for the highest quality of surgical outcome for this group of patients.
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Neutrophils are important effector cells in immunity to microorganisms, particularly bacteria. Here, we show that the process of neutrophil apoptosis is delayed in several inflammatory diseases, suggesting that this phenomenon may represent a general feature contributing to the development of neutrophilia, and, therefore, in many cases to host defense against infection. The delay of neutrophil apoptosis was associated with markedly reduced levels of Bax, a pro-apoptotic member of the Bcl-2 family. Such Bax-deficient cells were also observed upon stimulation of normal neutrophils with cytokines present at sites of neutrophilic inflammation, such as granulocyte and granulocyte–macrophage colony-stimulating factors, in vitro. Moreover, Bax-deficient neutrophils generated by using Bax antisense oligodeoxynucleotides demonstrated delayed apoptosis, providing direct evidence for a role of Bax as a pro-apoptotic molecule in these cells. Interestingly, the Bax gene was reexpressed in Bax-deficient neutrophils under conditions of cytokine withdrawal. Thus, both granulocyte expansion and the resolution of inflammation appear to be regulated by the expression of the Bax gene in neutrophils.
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by teachers in Harvard University.
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This paper describes recent developments in sales markets of agricultural land in selected member states of the European Union and its candidate countries. Analysis focuses on the importance of the sales market for agricultural land, the average size of transacted plots, and the evolution and magnitude of the land sales prices. The share of agricultural land sold on the market is relatively stable in most of the old member states, with the exception of Finland, the Netherlands and the UK, where a more dynamic market is observed. For the new member states, the sales market for agricultural land is strongly affected by public sales under the ongoing land privatisation programmes, while strong variation prevails in the private sales market. Substantial differences are also observed in both the average size of the transacted plots and the sales prices. For the latter, price regulations partially explain the heterogeneity in the evolution of sales prices.
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In this paper, we describe recent developments in the rental market for agricultural land in selected EU member states and candidate countries. The analysis focuses on the importance of the rental market as well as on the evolution of rental prices. It appears that the share of rented land in the total utilised agricultural area varies considerably among member states. In the old member states, the share of rented land ranges between 18% in Ireland and 74% in France, while in the new member states (NMS) it ranges from 17% in Romania to 89% in Slovakia. For the former, different strategies to provide tenure security to tenants can explain differences in the importance of rental markets. Changes in the significance of land rental have also reflected changes in institutions and in economic and political conditions. In the NMS, diverse approaches to land reform have resulted in assorted ownership structures and hence in differences in the share of rented land. Regarding rental prices, governments impose price restrictions on agricultural land rents in some countries, such that large divergences are observed in rental prices between and within member states.