电烧伤皮肤金属元素的测定

本实验系用220V交流电源和直径2.0mm紫铜线为接触电极,在新鲜尸体腹部皮肤上做电烧伤实验。用原子吸收分光光度计对电烧伤皮肤中铜元素含量进行测定。结果表明电烧伤皮肤铜元素含量最高可达137.90μg/g。经10%福尔马林溶液固定40天以上的电烧伤皮肤铜元素含量有昕降低,但仍较正常皮肤含量为高。电烧伤皮肤铜元素含量以电流斑处为最高。本实验为电烧伤皮肤金属元素的定性与定量分析,检材的提取和处理,提供了一个较好的方法,有利于判定案件的性质和确定接触电极的金属种类。     

The Right to Do Wrong: Lying to Parents Among Adolescents and Emerging Adults

In this study, 229 high school students and 261 college students evaluated the acceptability of lying to parents under 19 different circumstances where a person's motive for lying differed. Students also indicated the frequency with which they had lied to their parents about diverse issue such as friends, dates, and money. Results indicated that adolescents and emerging adults quite commonly lied to their parents, and that in part they framed lying to parents as a way to assert the right to autonomy. Emerging adults were less accepting of lying and reported less frequent lying, compared to adolescents. Results also showed the association of sex, personality (self-restraint and tolerance of deviance), and family environment (control and cohesion) upon adolescents' and emerging adults' acceptance of lying to parents and lying behavior.     

Private game farming and its social consequences in post-apartheid South Africa: contestations over wildlife,property and agrarian futures

Spaces of privatised wildlife production, in the form of game farms, private nature reserves and other forms of wildlife-oriented land use, are an increasingly prominent feature of the South African countryside. Whilst there is a well-developed literature on the social impacts of state-run protected areas, the outcomes of privatised wildlife production have thus far received little attention. It is argued here that the socio-spatial dynamics of the wildlife industry, driven by capitalist imperatives related to the commodified production of nature and ‘wilderness’, warrant both in-depth investigation in their own right, and contextualisation in terms of broader processes of agrarian change locally as well as globally. The growing influence of trophy hunting and the wildlife industry on private land can be seen as a significant contributing factor to processes of deagrarianisation that are mirrored in other parts of the African continent and elsewhere. In South Africa, these developments and their impacts on the livelihoods of farm dwellers take on an added dimension in the context of the country's efforts to implement a programme of post-apartheid land reform. Two decades after the formal end of apartheid, contestations over land rights and property ownership remain live and often unresolved. This theme issue explores these dynamics on private land partly or wholly dedicated to wildlife production, with special emphasis on two South African provinces: KwaZulu-Natal and the Eastern Cape.     

Causes of sudden natural death in Jamaica: a medicolegal (coroner's) autopsy study from the University Hospital of the West Indies

Medicolegal (coroner's) autopsies are an important source of epidemiological data. A large proportion of them comprise sudden natural deaths and an analysis of such cases has never been undertaken at the University Hospital of the West Indies, the only teaching hospital in Jamaica. In a retrospective study, 841 cases of sudden natural deaths comprising 51.3% of the medicolegal autopsies conducted over the 15-year period, January 1983 to December 1997, were analyzed. There were 459 males and 382 females (M:F ratio = 1.2:1); 35 patients (4.1%) were less than 1 year of age, and the mean age of the remainder was 53.7+/-21.8 years. The peak age group was the seventh decade accounting for 21.9% of cases. The most common causes of death were cerebrovascular accidents (13.6%), pneumonia (9.4%), pulmonary embolism (7.4%), ischaemic heart disease (7.0%) and diabetes mellitus (6.1%). These findings contrasted with those from developed countries in which ischaemic heart disease is the commonest cause of sudden death. Hypertension was associated with the majority of cases of cerebrovascular accident and congestive cardiac failure (78.1 and 61.9%, respectively). Sickle cell disease represented one of the 10 most common causes of death accounting for 2.5% of cases. Documentation of autopsy-based data such as these is important in the planning of medical services in a developing country.     

Combining work and family in the Netherlands: Blessing or burden for one's mental health?

In this article we study which characteristics of combining work and family put people at risk for mental illness. Two alternative perspectives on the impact of multiple social roles on mental health are tested: the role accumulation perspective and the role strain perspective. Both perspectives are studied with data from a cross-sectional national survey held among a large, representative sample of Dutch people (N=1008). Multivariate analyses provided support for both perspectives. Having more social roles was related to better mental health. We also found a positive mental health effect of having a full-time job in combination with having children. However, having a partner who contributes less to household duties or having a job with low decision latitude or lower skill discretion was related to mental illness. So, certain aspects of social roles may also threaten people's mental health. Overall, our findings do not support the idea that combining work and family is necessarily a burden and harmful for people's mental health. Whether multiple social roles are a blessing or burden for people's mental health seems to depend on the characteristics of the social roles.