关于我国民族乡经济社会发展的思考

民族乡是民族区域自治制度的一种补充形式,民族乡制度是我国解决民族问题的一项政治制度,也是党和国家民族政策的重要组成部分。本文坚持以“三个代表”重要思想为指导,深入分析民族乡工作面临的形势和存在的问题,探索和研究加快民族乡经济和社会发展的思路和措施。     

Unusual neck lesion in a pedestrian caused by a road accident

The authors describe a road accident that occurred in the Trieste region of Italy in 1998, wherein a pedestrian experienced a mortal injury. During the on-site examination, the forensic officer in charge noticed, in addition to dispersed abrasions, bruises, and fractures, an unusual position of the head with a highly unusual motility of the cervical rachis and, above all, an apparent whitish fibrous elastic cord, 7-8 cm long, which came out of the mouth. The cord was found to be a segment of the spinal cord, expelled and driven into the mouth cavity by the impact. This represents an interesting case because of the specific dynamics of the accident and the type of lesion involved. This kind of spinal cord injury, in particular, is infrequent among pedestrians involved in road accidents in comparison with other road casualties.     

A case of electrocution during illegal fishing activities

The passage of electric current through the human body causes variable harm, ranging from loss of consciousness to death caused by paralysis of the bulbar nerve centers. This report describes a fatal case caused by an illegal fishing practice involving stunning fish with electric shocks produced by an electric generator carried through the water inside the carcass of an old refrigerator to keep it afloat. This occurrence is unusual because of the circumstances giving rise to the use of electric current and the cause of death, which resulted from the combination of the electric current produced by the generator and the saltwater, bringing about death by drowning.     

Death following atypical compression of the neck

The authors present 3 cases of asphyxia caused by atypical compression of the neck by the metal bed bars fitted at the sides of the bed to prevent falling out. These occurred in 3 elderly women living in nursing homes, confined to bed by severe neuropsychiatric disturbances. In all 3 cases, the minor nature of the skin lesions and absence of blood infiltrations in the anatomic structures of the neck had made it difficult to diagnose the cause of death. Inspection of the rest homes, together with the autopsy findings (acute pulmonary emphysema, conjunctival petechiae, and dark, fluid blood), enabled identification of asphyxia as the cause of death and its causal agent as the bed bars.     

The 2000-2001 GEP-ISFG Collaborative Exercise on mtDNA: assessing the cause of unsuccessful mtDNA PCR amplification of hair shaft samples

We report the results of Spanish and Portuguese working group (GEP) of International Society of Forensic Genetics (ISFG) Collaborative Exercise 2001-2002 on mitochondrial DNA (mtDNA) analysis. 64 laboratories from Spain, Portugal and several Latin-American countries participated in this quality control exercise. Five samples were sent to the participating laboratories, four blood stains (M1-M4) and a sample (M5) consisting of two hair shaft fragments. M4 was non-human (Felis catus) in origin; therefore, the capacity of the labs to identify the biological source of this sample was an integral part of the exercise. Some labs detected the non-human origin of M4 by carrying out immuno-diffussion techniques using antihuman serum, whereas others identified the specific animal origin by testing the sample against a set of animal antibodies or by means of the analysis of mtDNA regions (Cyt-b, 12S, and 16S genes). The results of the other three human blood stains (M1-M3) improved in relation to the last Collaborative Exercises but those related to hairs yielded a low rate of success which clearly contrasts with previous results. As a consequence of this, some labs performed additional analysis showing that the origin of this low efficiency was not the presence of inhibitors, but the low quantity of DNA present in these specific hair samples and the degradation.As a general conclusion the results emphasize the need of external proficiency testing as part of the accreditation procedure for the labs performing mtDNA analysis in forensic casework.     

青年网络政治参与与政治稳定

随着网络的普及和发展,网络政治参与越来越成为政治参与的重要手段。广大青年利用BBS等公共论坛表达意愿、通过政府信箱参与政府对话,利用网络发起现实政治运动等等网络政治行为,开始对我国的政治稳定和政治生活产生着深刻影响,可以说是建设性与破坏性并存。面对现实,政府应积极引导青年网络政治参与理性化,推动我国政治稳定的发展,进而构建和谐社会。     

Evaluating the Evaluation Strategy as an Instrument for Budgetary Control

This article reports recent research undertaken on the contribution of program evaluation to that part of the budget process for which the Australian public service has carriage. It examines the degree of success which the Labor government's evaluation strategy attained in serving budget agency information purposes. The research is not conclusive, only indicative. Based on two sets of evidence — interviews with officers in the Department of Finance¹ and an analysis of survey results on the use of evaluation in the budget — it contends the evaluation strategy has had only a marginal impact on central budgetary processes. By documenting changes in the approaches of budget officials the article reports the impact of program evaluation on the core function of Finance — the provision of policy advice relating to the expenditure priorities of government.     

Human and insect mitochondrial DNA analysis from maggots

During the course of our forensic investigations, we have encountered situations where it would have been useful to have evidence, other than direct contact between the two, for concluding that a carrion-fly maggot developed on a particular human victim. If a maggot collected during a death investigation did not develop on the victim, then its age is not relevant to estimating the postmortem interval. In this study we demonstrate that mitochondrial DNA (mtDNA) sequence data can be obtained from the dissected gut of a maggot that had fed on human tissue. These data can be used to identify both the human corpse upon which the maggot had been feeding and the species of the maggot itself.