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341.
342.
我国政府采购制度的建设正处于全国发展阶段,存在着采购程序设计缺陷、监督权力虚置、供应商质疑监督程序不足等问题,需要建构完备的政府采购监督法律体系、监督程序机制以及分工明晰、责任明确的监督管理体系予以解决。 相似文献
343.
Erin Sugrue PhD Annahita Ball PhD Danielle R. Harrell PhD Ashley-Marie H. Daftary PhD 《Child & Family Social Work》2023,28(4):908-918
The COVID-19 pandemic brought dramatic changes in schooling in the United States and across the world, including abrupt shifts to remote learning, immediate cessation of social contact, intensive family engagement in education and diminished school capacity for social–emotional supports. While the initial national lockdown was temporary, the long-lasting effects of the pandemic on society are still being revealed. This study contributes to a growing body of research exploring and documenting shifts in school social work practice in the United States during the COVID era. We used qualitative methods to explore how school social workers (SSWers) practised family engagement during the pandemic and their perceptions of the benefits and challenges of increased family engagement. Analysis of interviews with 20 SSWers from three US states (Colorado, Minnesota and Nevada) revealed five primary themes: reasons for family engagement, ways of engaging with families, frequency of family contact, challenges in engaging families and SSWers' attitudes and perceptions about family engagement. Results indicated a need for a comprehensive, organized and strategic family engagement plan in schools as we move into the post-acute phases of the pandemic. Future research should explore how SSWers may serve as leaders in the development of such plans and how interprofessional practice might advance this agenda further. 相似文献
344.
The JFDA applies border control for Salmonella Typhimurium and Salmonella Enteritidis in frozen poultry products. A QMRA model was developed to evaluate the effectiveness of this system in controlling the risk for consumers. The model consists of three modules; consumer phase, risk estimation, and risk reduction. The model inputs were the occurrence of Salmonella in different types of imported poultry products, the LOD of the Rapid’Salmonella, the number of tested samples of each batch, and the criteria for rejection. The model outputs were public health impact as the Minimum Relative Residual Risk (MRRR) given the batches’ refusal and the percentage of Batches that are Not-compliant with the Microbiological Criteria (BNMC) of rejection. To estimate the overall MRRR of the border control, the estimated country and product-specific MRRR were summarized and weighted by the total imports of each product from each country. The current border control based on one sample per batch gives an overall MRRR value of 27%. The alternative scenarios based on three and five samples per batch are 12% and 8%, respectively. Overall, the higher the prevalence and/or concentration of Salmonella in imported products, the more the likelihood that batches will be rejected. For products with up-to-date data of occurrence, the estimated BNMC was similar to the observed proportion of rejected batches. The lack of data on the Salmonella concentrations in poultry products from different countries is the major source of the uncertainties in the model. It reduces our opportunities to obtain valid estimates of the absolute risk. 相似文献
345.
Pippa Sterk 《Journal of Sociolinguistics》2023,27(4):364-383
In the aftermath of the Holocaust, Dutch public discourse promotes a self-image of the Netherlands as ‘innocently’ post-racial, a place where distinctions are drawn based on cultural differences rather than bodily characteristics. However, this innocence is called into question when groups or individuals, who culturally, legally and linguistically ‘fit’ within the Netherlands, are still racialised to the point of not being recognised as properly Dutch. This paper uses a feminist approach to autoethnography and critical discourse analysis to explore the author's racialised/racialising experiences of Dutch airport security, and how these experiences are both informed by and themselves re-inform wider enactments of normative raciolinguistic ideologies. Drawing on theorisations of the links among language, embodiment and (self-)surveillance by Sara Ahmed and Samy Alim, this paper argues that although markers of citizenship and linguistic ability can be fluidly employed and engaged with, raciolinguistic categorisation is still heavily influenced by bodily appearance. 相似文献
346.
Rostyslav Bodnar Taras Bodnar Wolfgang Schmid 《Scandinavian Journal of Statistics》2023,50(3):962-992
In the paper we derive new types of multivariate exponentially weighted moving average (EWMA) control charts which are based on the Euclidean distance and on the distance defined by using the inverse of the diagonal matrix consisting of the variances. The design of the proposed control schemes does not involve the computation of the inverse covariance matrix and, thus, it can be used in the high-dimensional setting. The distributional properties of the control statistics are obtained and are used in the determination of the new control procedures. Within an extensive simulation study, the new approaches are compared with the multivariate EWMA control charts which are based on the Mahalanobis distance. 相似文献
347.
周学峰 《北京理工大学学报(社会科学版)》2014,16(6):110-118
美国联邦最高法院通过判例确认政府从事电子监控应受联邦宪法"第4修正案"制约,政府从第三方获取当事人自愿提供的信息除外。美国国会通过《电子通讯隐私法》和《涉外情报监控法》,对美国政府基于执法需要而进行的监控与基于国家安全目的而进行的监控进行了进一步的规范。"911"事件发生后,美国国会颁布了《爱国者法案》,进一步扩大政府收集信息的权力范围,国家安全与个人隐私保护之间的关系被重新调整,并引发了诸多的争议。 相似文献