男子性犯罪原因生物学基础初探

男子性犯罪原因是复杂的，关于性犯罪原因生物学基础的研究，国内尚缺乏足够的研究资料和实验依据．本文对某监狱在押性犯罪男犯２２３名进行外生殖器形态观察、血型、多Ｙ染色质、血浆性激素水平和毛发微量元素检测，结果表明，男子性犯罪行为，除了与社会、心理、教育等原因有关外，无疑存在着物质基础，即生物学基础。至于性犯罪原因生物学基础在性犯罪小的作用和地位，我们的工作仅是初步探索，有待进一步深入研究。     

Rh血型系统的分子生物学研究进展

Rh血型是极复杂的人类红细胞血型系统之一,至少包括45种独立的血型抗原。过去的10年间,Rh血型的研究取得了极大的进展,得到了大量分子生物学的研究资料,如Rh血型的遗传方式、RH基因及其进化过程、Rh复合体的结构与功能、红细胞外Rh相似蛋白的表达,Rh基因分型技术也进一步得到发展与改进。本文综述了Rh血型分子生物学的研究进展,以服务于法医学实践。     

组织细胞DNA含量变化与死亡时间的相关性研究

目的研究人死后各器官组织细胞DNA降解变化规律,探讨其在推断死亡时间方面的应用价值,为推断死亡时间提供科学依据。方法已知死亡时间人尸体的心、肝、脾、肾,按死后6,12,24和48h四个时间段取材,制成石蜡切片,经Feulgen染色并图像分析;同时将各器官组织按不同时间段取材,制成单细胞悬液,应用流式细胞仪检测DNA含量。结果(1)人体各器官组织细胞经FCM检测,脾细胞核DNA随死亡时间延长呈现较好的下降梯度,而心、肝、肾,则由于自溶较快,死后6h细胞核DNA含量已很低,其变化情况与死亡时间的相关性不佳;(2)各器官组织细胞核DNA染色强度指数均随死亡时间的延长而下降。结论(1)机体死亡后,各器官组织细胞核DNA含量随死亡时间延长逐渐减少,具有一定的变化规律,其中以脾细胞核DNA含量的变化趋势与死亡时间最具相关性,肝、肾次之,而心最差;(2)方法学分析,图像分析技术(IAT)与流式细胞术(FCM)两种检测方法在研究组织细胞DNA含量变化方面,各有利弊,可互补不足。     

长春市上市公司在地方经济发展中的地位与作用

上市公司的发展和壮大为长春市地方经济的发展提供了有效的资本支持，加快了长春市经济结构的合理调整和优化组合，对长春市经济持续，快速和健康发展起到了重大作用。具体表现在：上市公司进入证券市场，拓宽了融资渠道，以上市公司为龙头，带动相关行业的腾飞。通过资本流动，加快了经济结构的调整，通过产权交易，转换了经营机制，提高了管理水平等。     

SD大白鼠小脑前核中皮质纤维与小脑投射神经元间的突触联系

用辣根过氧化物酶（ＨＲＰ）逆行标记法结合溃变电镜技术,观察了８只ＳＤ大白鼠小脑前核（桥核、下橄榄、外侧网状核、桥被盖网状核和旁正中网状核）中皮质纤维终末的溃变型及其与各核中小脑投射神经元的突触联系。结果：溃变型有３种,即电子致密型、微丝增生型和电子透明型;电子致密型溃变为皮质纤维的主要溃变型,分布于各核,微丝增生型和电子透明型很少,只出现于个别核;电子致密型溃变含圆形清亮型小泡、多形清亮型小泡和混合型小泡的３种终末,其中绝大多数溃变终末含圆形清亮型小泡;溃变终末中的一部分与ＨＲＰ标记的小脑投射神经元形成单突触联系,其中大部分为轴树突触,少量为轴体突触。观察结果表明,至少有一部分皮质脑干纤维与小脑前核中的小脑投射神经元形成单突触联系。     

脑挫裂伤后脑水肿CT表现及其与受伤时间的相关研究

分析120例脑挫裂伤后脑水肿的CT表现及其两者形成时间的关系,提出脑水肿的分级和分型,以Ⅰ-Ⅱ组脑水肿和“O”型脑水肿多见,Ⅰ级脑水肿形成时间平均17小时,Ⅱ级形成时间平均30小时,Ⅲ-Ⅳ级形成时间平均72～73／小时,受伤时间与R值呈正相关（r=0．431）,P＜0．001．回归方程Y=6658＋79．152x,受伤时间与D值也呈正相关（r=0．429）P＜0．001,回归方程Y=39．362－32．335x。并首次指出这时间变化规律可作为脑挫裂伤受伤时间的推断依据。     

Forced displacements in mining communities: politics in Chiadzwa diamond area,Zimbabwe

ABSTRACT

The Chiadzwa diamonds attracted widespread attention due to human rights violations and illegal smuggling. When diamonds were discovered in 2006, thousands of artisanal miners descended on the diamond fields. In response, the government unleashed the army and police in brutal crackdowns to drive artisanal miners off the diamond fields. This militarisation of diamond fields and extraction was followed by forced displacement of the Chiadzwa people. This article examines the lived, everyday experiences of the displaced Chiadzwa people. Findings reveal that displacements dislocated the livelihoods and socialities of the people. Displacements also exacerbated people's vulnerability to livelihood shocks, insecurity, and poverty. In relocating people the government adopted a ‘top-down’ approach which triggered contestations and conflicts with the people who felt alienated from their ancestral land and excluded from diamond wealth. Consequently, sabotage, resistance and subversion were commonplace in the relocation process. These socio-political ‘tactics’ should be viewed as ‘weapons of the weak’.     

“Clamoring Blood”: The Materiality of Belonging in Modern Ainu Identity

The tension between silence and vocalization, embrace and rejection, of Ainu ancestry has been a key factor in negotiating Ainu subjectivity since Ainu territories were colonized in 1869. As early as 1799, expressions of Ainu ethnicity were alternately cloaked and exaggerated as Japan vacillated between assimilation and segregation policies in eastern Hokkaido Ainu communities. Officially recognized as Japan's indigenous peoples in 2008, Ainu subjectivity has become increasingly politicized as the state and other stakeholders seek to define Ainu ethnicity for future legislation. Today Ainu belonging is frequently gauged by bodily metaphors of a vocalized blood. Cultural sensibility and blood are often conflated in Ainu discourses of identity: Ainu revivalists report that a sensation of “clamoring blood” (J: chi ga sawagu) inspires them to revisit ancestral memories and begin fashioning Ainu identities. Historically, intra-Ainu relations were not bound to blood but instead embodied in material expressions, such as invisible cords for women and crest-like emblems for men, symbols that enabled flexibility where needed. Since the twentieth century, the hyper focus on blood raises the specter of colonially imposed rhetorics of eugenics, assimilation policies, and specifically, the problem of race. Relatedness in the Ainu community is not exclusively defined by “consanguineal relations”; rather, a long history of adopting ethnic Japanese children and non-Ainu into Ainu families renders complex the question of identity. This article assesses how immutable notions of racial difference intersect with self-determination and current articulations of Ainu identity.     

Ecologies of blood in Johannesburg vampire fiction

This essay reads two contemporary Johannesburg vampire narratives, the film Eternity (2010) and the graphic novel Rebirth (2012), as part of a body of fiction that sees post-apartheid Johannesburg as a laboratory for new forms of life. While recent Johannesburg science fiction has imagined the emergence of new and more fluid forms of being in Johannesburg, the vampire narrative employs a far older and more restrictive type of monster. By virtue of its intimate relationship to blood – with its mythical overtones of racial and national essence – and its peculiarly blank and limited form of being, the vampire is a productive figure for imagining whiteness. In this essay, I examine how the Johannesburg vampire registers the mutations of whiteness in the post-apartheid context. Located in a contaminated and contaminating city of hidden capillaries and networks, vampiric blood runs across and perforates the traditional blood bonds of race, family, and nation. Indeed, dependent on a precarious and potentially diseased resource, the Johannesburg vampire is always on the cusp of dissolving the very whiteness it figures. I am interested in the way in which these vampire narratives alternately reinforce and interrogate what I call the politics of prolongation; that is, in the ways in which their horizontal and entangled “haemopoetics” attempt to displace the genealogical poetics of blood that have traditionally suffused the colonial enterprise and its literature.     

Determination of Nitrite in Whole Blood by High‐Performance Liquid Chromatography with Electrochemical Detection and a Case of Nitrite Poisoning

Although nitrite is widely used in meat processing, it is a major toxicity hazard to children and is responsible for the blue‐baby syndrome. A simple and effective method to determine nitrite in whole blood has been devised using ion chromatography with suppressed conductivity detection. The blood sample was deproteinized by adding acetonitrile and purified with mini‐cartridges to remove hydrophobic compounds, chloride ions, and metal ions. An aliquot of the filtrate was injected onto the ion chromatography. The retention time for nitrite was 13.8 min and the detection limit of nitrite in whole blood was 0.4 μmol/L. The calibration curve was linear (r² = 0.9999) over the concentration working range. The blood nitrite concentration of a victim who attempted suicide by ingesting sodium nitrite powder was determined using the present method. The basal levels for nitrite in human blood was determined with 7.1 ± 0.9 μmol/L (n = 12).