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1.
应用组织病理学和SABC免疫组织化学技术,对湖北省武汉市的2批14日龄和33日龄疑似禽白血病肉鸡进行了病理学诊断,并观察了病鸡肝肿瘤组织中p53基因和Bcl-2基因的表达情况。剖检可见病鸡肝、肾、脾均不同程度肿胀,组织病理学检查在肝、肾、心等脏器可见散在或聚集成团的骨髓瘤细胞,胞浆内充满球形的嗜酸性颗粒;在病鸡肝肿瘤组织中p53和Bcl-2基因均呈阳性表达,诊断为J亚群禽白血病(ALV-J),提示p53基因和Bcl-2基因与肉鸡J亚群禽白血病有关。  相似文献   
2.
检察引导侦查,是我国刑事司法实践中最近出现的一种重要趋向。由于这一做法有助于遏制侦查权控制不力所造成的种种弊端,也引起了法学界的普遍关注。理论是实践的先导,检察引导侦查制度的设计和完善,首先必须立足于对其的合理定位:通过引导实现控制。如果控制的思路不被彰显于前,则此制度的发展最终将会陷入僵局,失去其应有的功能。  相似文献   
3.
儒、道、佛是中国传统文化的三大体系,它们中的许多精髓都被衍生成中国绘画的重要理论,对中国绘画的艺术创作、审美原则、艺术风格都产生了重要影响,构成了中国绘画艺术的根基,因此,论述中国传统文化中的绘画艺术必须从儒、道、佛的视角着手。  相似文献   
4.
P2p技术的相关利益主体之间相互博弈行为中存在一系列法律问题。彻底地解决p2p引发的版权及相关问题,只有将其商业化,建立利益共享机制,并完善相关版权法律制度。  相似文献   
5.
The United States is experiencing growing impacts of climate change but currently receives a limited policy response from its national leadership. Within this policy void, many state governments are stepping up and taking action on adaptation planning. Yet we know little about why some states adopt State Adaptation Plans (SAPs), while others do not. This article investigates factors that predict the emergence of SAPs, both in terms of policy adoption and policy intensity (goal ambitiousness). Applying the diffusion of innovation theory, I consider the relative influence of internal state characteristics, regional pressures, and test for conditional effects between government ideologies and severity of the problem. The results show interesting differences between predictors that influence policy adoption and ambitiousness. States are more motivated to adopt a policy when faced with greater climate vulnerability, have more liberal citizenry, and where governments have crossed policy hurdles by previously passing mitigation plans. The intensity of policies and goal setting, moreover, is more likely to be driven by interest group politics and diffuse through policy learning or sharing information among neighboring states in Environmental Protection Agency regions. These findings support an emerging scholarship that uses more complex dependent variables in policy analysis. These variables have the potential to differentiate symbolic from substantive policies and capture finer information about predictors of importance.  相似文献   
6.
This article characterizes the ways in which the actors in charge of designing and implementing public policies intervene to promote the emergence of alternatives to problematic technologies. It is based on a case study conducted in Argentina that focuses on initiatives to promote the development of biological agricultural inputs in the context of increasingly controversial chemical inputs. The study spotlights the political, institutional, and semantic efforts made by policy makers and public administrations to ensure these new inputs find their way into organizations and onto their agendas. Their work consists in attenuating the boundaries between chemical and biological inputs, and reducing opposition by creating categories and organizations that downplay potential dissension and highlight the possible coexistence of technological paradigms. Contrary to what the injunctions of technological substitution suggest, we show that putting alternative technologies on the public agenda depends largely on their inclusion in institutional and regulatory infrastructures originally designed for technologies that are likely to decline. More broadly, it relies on the construction of continuity between the two types of technologies.  相似文献   
7.
International research collaboration (IRC) is associated with both positive and negative effects on the performance of research in emerging economies. While some authors claim that North–South collaborations improve scientific quality and visibility for Southern countries, others claim that it may entail the reorientation of research to comply with Northern agendas. South–South collaborations are thought to increase the focus on local affairs, therefore leading to a relatively small number of scientific international publications appearing in “high quality” journals. Research on the impact of IRC beyond publications in international journals has been neglected despite the importance of other products in knowledge creation. This research uses a broad range of scientific outputs to empirically assess such assumptions and explore the outcomes of IRC in Colombia. Results from multivariate regressions and nonparametric analyses show that, contrary to common assumptions, Colombian research teams collaborating with partners from the global South report higher scientific production, while those collaborating with Northern countries seem to contribute to local knowledge the most.  相似文献   
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9.
限制假释与世界行刑现代化方向不吻合。对假释在实践中存在的问题应具体分析,但不能因噎废食。我国限制假释的理论依据值得商榷,事实表明:限制假释不利于调动在监服刑犯的改造积极性,不利于他们的重新社会化过程,与监狱法中对罪犯实行惩罚与改造相结合的原则不符;同时,在维护社会的稳定以及体现法律的公正、衔接等方面并非是一个较好的选择。所以,建议对该刑法条款进行修改,并通过对我国假释管理体制的完善,逐步扩大对假释的适用。  相似文献   
10.
检测p30确证精斑有下列几种方法:免疫扩散,免疫电泳,交叉免疫电泳,胶乳凝集抑制试验,薄层免疫分析和酶联免疫吸附试验(ELISA).这些方法各有优缺点,就灵敏度而论,则以  相似文献   
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