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An in-depth investigation of the Kampala Urban Refugee Children'sEducation Centre (KURCEC), a refugee-initiated community-basedorganization in Uganda, allows for detailed exploration of thelivelihood strategies employed by urban refugees in the sphereof education and of the ways in which these strategies can promoteself-reliance and individual and community development in urbansituations. Urban refugees' development of KURCEC challengesperceived notions of refugees as burdens or as passive recipientsin a system that fosters dependency and shows that they areagents of social change within their own and their host communities.The focus on what works in the midst of crisis, desperation,and uncertainty is a deliberate attempt to promote researchand policy-setting that is forward-looking and productive ratherthan reactionary and regressive in the context of new developmentsin policy and practice relating to urban refugees worldwide.  相似文献   
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The social field in which deportations of illegalized migrants are operationalized is often perceived to be comprised of two opposing sides that together form a deportation regime: on the one side, street-level state agents, on the other side, civil-society actors. Focusing ethnographically on deportation case managers and NGO workers in the Netherlands, a country known for its consensus politics, our study reveals significant convergences in the manners that illegalized migrants are treated by both sides in usage of terminology, handling of face-to-face interactions and worldviews on issues like belonging and justice. Given these convergences, we argue that the field in which deportation is being negotiated and practiced amounts to a continuum formed by state agents and NGO actors. We argue that a deportation continuum is underlined by shared political subjectivities and creates a sealed-off political realm that restricts the initiatives of activist citizens, imaginaries of citizenship and alternatives for deportation policies.  相似文献   
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Over the past decades, consume of slimming agents considerably increased in several countries, including Brazil, due to weight-loss and stimulant properties. Since these drugs are controlled to prevent illicit and indiscriminate use, there is a parallel illegal market that uses the Internet and irregular pharmacies in order to distribute these formulations. Slimming agents produced by these illegal sources are known for being manufactured with little or none quality control resulting in uncertain and unknown formulations. For forensic purposes, apprehended pharmaceuticals have to undergo a process of chemical identification that can be difficult due to its complex matrix. In this sense, application of assisted energies in the extraction step such as microwave irradiation can be a promising method to increase the recuperation of the target molecules of the sample. Therefore, the aim of this research was to identify four slimming agents apprehended in Brazil by means of visual inspection, Fourier Transform Infrared Spectroscopy, Differential Scanning Calorimetry and Gas Chromatography – Mass Spectrometry. Moreover, the efficiency of solid-liquid extraction and microwave-assisted extraction was compared. It should be noted that our work was one of the few to use Differential Scanning Calorimetry and the application of microwave irradiation in the analysis of apprehended materials. Results showed that the majority of the samples was counterfeit being composed of one or several adulterants or contaminants. Initially, visual inspection resourcefully screened the slimming agents for possible signs of falsification, however it failed to detect fraudulent products that were very similar to veridical medicines. Sequentially, Fourier Transform Infrared Spectroscopy detected functional groups present in the samples while the presence or absence of the alleged active ingredients were successfully measured with Differential Scanning Calorimetry and, thus, providing a full chemical screening of the apprehended materials. Gas Chromatography- Mass Spectrometry confirmed the presence of adulterants such as caffeine, fluoxetine and phenolphthalein as well as contaminants such as sulfurol in the falsified samples. Finally, comparison of extraction procedures indicated that microwave-assisted extraction increased the recovery of compounds detected in chromatographic analysis to a greater extent than solid-liquid extraction.  相似文献   
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Forensic laboratories do not have the infrastructure to process or store contaminated DNA samples that have been recovered from a crime scene contaminated with chemical or biological warfare agents. Previous research has shown that DNA profiles can be recovered from blood exposed to several chemical warfare agents after the agent has been removed. The fate of four toxic agents, sulfur mustard, sodium 2-fluoroacetate, sarin, and diazinon, in a lysis buffer used in Promega DNA IQ extraction protocol was studied to determine if extraction would render the samples safe. Two independent analytical methods were used per agent, selected from GC-MS, 1H NMR, 19F NMR, (31)P NMR, or LC-ES MS. The methods were validated before use. Determinations were carried out in a semi-quantitative way, by direct comparison to standards. Agent levels in the elution buffer were found to be below the detectable limits for mustard, sarin, sodium 2-fluoroacetate or low (<0.02 mg/mL) for diazinon. Therefore, once extracted these DNA samples could be safely processed in a forensic laboratory.  相似文献   
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Artificial intelligence (AI), machine learning (ML), affective computing, and big‐data techniques are improving the ways that humans negotiate and learn to negotiate. These technologies, long deployed in industry and academic research, are now being adopted for educational use. We describe several systems that help human negotiators evaluate and learn from role‐play simulations as well as applications that help human instructors teach negotiators at the individual, team, and organizational levels. AI can enable the personalization of negotiation instruction, taking into consideration factors such as culture and bias. These tools will enable improvements not only in the teaching of negotiation, but also in teaching humans how to program and collaborate with technology‐based negotiation systems, including avatars and computer‐controlled negotiation agents. These advances will provide theoretical and practical insights, require serious consideration of ethical issues, and revolutionize the way we practice and teach negotiation.  相似文献   
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Bacterial species with high DNA sequence similarity to pathogens could affect the specificity of assays designed to detect biological threat agents in environmental samples. The natural presence of four pathogenic bacteria, Bacillus anthracis, Clostridium perfringens, Francisella tularensis, and Yersinia pestis and their closely related species, was determined for a large collection of soil and aerosol samples. Polymerase chain reaction (PCR) and gene sequencing were used using group-specific 16S rRNA primers to identify pathogens and related species, and pathogen-specific virulence genes. Close relatives of B. anthracis (B. cereus group species) were detected in 37% of the soils and 25% of the aerosol samples. The B. anthracis protective antigen (pag) gene or a close homolog was detected in 16 of these samples. For the other three pathogen groups, the frequency of detection was much lower, and none of the samples were positive with both the phylogenetic and virulence gene primer sets.  相似文献   
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钟凯 《北方法学》2010,4(3):61-73
在大陆法系,经理人既可作为营业主委任经营之人,也可根据法律或章程规定,作为企业法人之机关(包括代表机关)。经理权的本质是商事代理权,有关学说将经理权分解成对内管理与对外代理两种权能并不科学。大陆法系经理权依委任并公示取得,未经委任但具有经理外观者可赋予其表见经理地位。经理权的消灭也有特殊的要求。经理权可单独行使,也可共同行使,共同经理权并非对经理权范围的限制。经理人的主要义务是竞业禁止和忠实义务,违反竞业禁止的后果是公司或营业主享有归入权或介入权。根据法人理论的不同,经理和法人机关或存在交集或完全不同。大陆法系的商业辅助包括经理人,无论冠以何种称谓,其核心权限均为商事代理权,其区别仅在于根据各自与商人的关系或所处职位不同而享有不同权限。代理商属广义之商业辅助人,是企业或商人的外部代理人。  相似文献   
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Novel hydrophobic silica based particles have been developed to visualise latent fingerprints. The composition of the particles has been designed to maximise both hydrophobic and ionic interactions between a variety of coloured and fluorescent reporter molecules and the silicate backbone within the particles. The resulting doped particles retain the incorporated dyes with high affinity. In addition, a variety of sub-particles have also been embedded to again produce coloured or magnetisable hydrophobic particles. The particles can be harvested as nanoparticles or microparticles. The former are applied to latent fingerprints as an aqueous suspension and the latter as a dusting agent using brushes or a magnetic wand. Examples of the prints produced using these agents are given. The resulting prints have good definition.  相似文献   
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