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41.
冷战结束后,北约并未因对手的消失而瓦解,而是通过扩大组织、出台新战略和实施新行动找到生存依据并获得新的发展。在北约的新扩大、新战略和新行动中,中东欧国家不管是主动参与还是被动接受,都起到了不可低估的作用。中东欧国家的加入令北约成员国从16个增至30个,拓展了北约的疆域。东欧剧变带来的国际局势的变化,特别是前南斯拉夫地区发生的战争促使北约提出新的战略概念,波黑战争、科索沃战争和马其顿危机更是成为北约新战略的试验场。中东欧国家参与了北约在波黑、科索沃、阿富汗和伊拉克的行动以及乌克兰危机发生后针对俄罗斯的军事部署,做出独有的贡献。同时,中东欧国家的加入也给北约在决策效率、行动能力、责任分担和价值观方面带来新的挑战。不过,由于中东欧国家的军事力量和国家实力有限,在北约内部的影响力不大,这些挑战不足以危及北约的生存。 相似文献
42.
Postmortem stability of DNA 总被引:11,自引:0,他引:11
High-molecular-weight DNA was recovered postmortem in sufficient quantities from various human organ tissues as well as from blood, although not all organs were equally well suitable. Good DNA stability was found in brain cortex, lymph nodes and psoas muscle over a period of three weeks postmortem. Spleen and kidney showed good DNA stability up to five days postmortem but after longer periods, rapid degradation was observed. Yields of DNA from blood were not consistent because of the non homogeneity of samples. Blood clots were rich with DNA. Generally, the amount of degraded DNA correlated directly with the duration of the postmortem period. However in some cases, DNA degradation was already prominent after a short period. However in some cases, DNA degradation was already prominent after a short period. Case histories showed that high environmental temperature at the site of death and/or infectious diseases prior to death were the main factors for rapid autolysis. Gradual disappearance to complete loss of the long fragments (15-23 kb) was observed in DNA fingerprinting using the minisatellite probe 33.15. No extra-bands were noted, thus excluding erroneous conclusions. However, evidentiary value of older samples was lower. 相似文献
43.
Headspace gas chromatography was used to determine the concentration of ethanol and methanol in blood samples from 519 individuals suspected of drinking and driving in Sweden where the legal alcohol limit is 0.50 mg/g in whole blood (11 mmol/l). The concentration of ethanol in blood ranged from 0.01 to 3.52 mg/g with a mean of 1.83 +/- 0.82 mg/g (+/- S.D.). The frequency distribution was symmetrical about the mean but deviated from normality. A plot of the same data on normal probability paper indicated that it might be composed of two subpopulations (bimodal). The concentration of methanol in the same blood specimens ranged from 1 to 23 mg/l with a mean of 7.3 +/- 3.6 mg/l (+/- S.D.) and this distribution was markedly skew (+). The concentration of ethanol (x) and methanol (y) were positively correlated (r = 0.47, P less than 0.001) and implies that 22% (r2) of the variance in blood-methanol can be attributed to its linear regression on blood-ethanol. The regression equation was y = 3.6 + 2.1 x and the standard error estimate was 0.32 mg/l. This large scatter precludes making reliable estimates of blood-methanol concentration from measurements of blood-ethanol concentration and the regression equation. But higher blood-methanol concentrations are definitely associated with higher blood-ethanol in this sample of Swedish drinking drivers. Frequent exposure to methanol and its toxic products of metabolism, formaldehyde and formic acid, might constitute an additional health risk associated with heavy drinking in predisposed individuals. The determination of methanol in blood of drinking drivers in addition to ethanol could indicate long-standing ethanol intoxication and therefore potential problem drinkers or alcoholics. 相似文献
44.
Taking into consideration the eugenic nature and perspective of high-performance human resource management functions on organizational effectiveness, the authors examined managerial and employee level of recruitment and selection on operational performance with emphasis on human capital and three indicators of organizational commitment (affective, normative, and continuous) as mediators. Questionnaires totaling 282, 122 for managerial level and 160 for employee level, were administered. A multilevel analysis of data were conducted on a selected number of Ghanaian NGOs using Statistical Package for Social Sciences (SPSS). The study revealed that recruitment and selection ideally leads to improved operational performance, however, this affiliation can be enhanced through the inescapable role of human capital and the three commitment indicators (affective, normative, and continuous). It was also exposed that effective recruitment and selection leads to a desirable employee’s level of affective, normative and continuous commitment, which also have greater influence on the operational performance. The study is thus considered very significant contextual support to existing literature and practitioners since not much of such work has been done in the Ghanaian context. Therefore, the current study implicates recruitment and selection, human capital, and the three commitment levels as a core value-creating ability that drives non-governmental organizations performance. 相似文献
45.
46.
In this paper, I shall make the following propositions: in order to conceptually capture and represent the acts of political protest in a state of exception, we will need to reorient and supplement our representational apparatuses and also our theoretical frameworks for thinking about the gendered modes of protest under emergency laws and political abandonment. Through an analysis of the ‘naked protest’ of the Meira Peibis in Manipur, a ‘state of exception’ in democratic India, I shall argue that a series of supplementations to our current thinking on intersectionality, bare life and political subjectivation are required if we are to make sense of political acts of resistance, refusal and disavowal of the law of exception. 相似文献
47.
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49.
Although many iterations of the mammy in the last two centuries have received analytical attention, the construction of this figure as asexual or undesiring and undesirable remains to be interrogated. This essay attends to this under-theorised dimension of her image. Resisting a reading of the mammy as fixed in silence, I assert that she might instead ‘say nothing’, and bring into focus a black asexual agency that I call a declarative silence. This strategy of ‘saying nothing’ is then explored in a reading of the withholdings of the character of Mama in Gayl Jones’s neo-slave narrative, Corregidora (1975). 相似文献
50.