Optimising nearest neighbour information—a simple,efficient sampling strategy for forestry plot imputation using remotely sensed data

The rapid adoption of LiDAR-assisted forest inventory, together with nearest neighbour imputation, has created new challenges for those involved in sample selection. It is not obvious a priori what type of sample will be the most efficient when used with imputation. In this paper we explore a number of sampling approaches, including conventional methods such as stratification, spatial methods based on tessellations, and balanced sampling. We introduce a new approach called nearest centroid (NC) that optimises the survey design by using the distance properties of the sample in the space defined by the auxiliary variables, and examine this and other methods across a range of survey situations and objectives. The NC method is shown to be highly efficient when compared with other methods and is very flexible in the way it can be implemented.     

儿童白瞳症的超声诊断价值

探讨不同眼内疾病所致儿童白瞳症的B型超声表现，为临床诊断及鉴别诊断提供客观依据。方法对26例（35只眼）白瞳症进行B型超声检查。结果不同的疾病所致的白瞳症患儿B型超声检查结果不同。结论 B型超声检查为儿童白瞳症的临床诊断及鉴别诊断提供客观、可靠的依据，具有极其重要的价值。     

熏蒸处理日常安全检查

口岸熏蒸处理使用的是有毒有害气体,且高压储存于钢瓶中,要求严格管理,杜绝药品丢失和泄漏。在实际工作当中,接触熏蒸气体的部门和人员,并不能完全规范操作,故日常安全检查对发现安全隐患、规范操作,有着重要的意义。     

Emotional reactivity to war stressors: An experience sampling study in people with and without different psychiatric diagnoses

There is a lack of knowledge regarding real-time emotional reactivity to high-intensity stressors, particularly in people with mental illness, a potentially vulnerable population. The current study aimed to examine negative emotional reactions to recurring high-intensity stressors within a continuous war situation, in people with different psychiatric diagnosis types. Experience sampling method was used to examine emotional reactions among 143 civilians exposed to rockets during the 2014 Israel–Gaza war, of them 18.2% with psychosis, 14.7% with anxiety or depression and 67.1% without mental illness. Participants reported exposure to rocket warning sirens and the levels of 10 negative emotions twice a day for 30 days. Negative emotional levels were higher on most emotions following high-intensity stressors (sirens), that is, emotional reactivity was demonstrated in real-time during war. Overall, no difference in reactivity was found among the three study groups. Moreover, people with anxiety/depression were less reactive than people without mental illness on sadness and being overwhelmed. The findings indicate similar and sometimes lower emotional reactivity to high-intensity stressors in people with mental illness compared to the general population. Nevertheless, people with mental illness seem to have significant emotional needs during war, to be addressed in prevention and intervention efforts.     

Collection,verification, sharing and dissemination of data: the CONTRAST experience

The scientific community is charged with growing demands regarding the management of project data and outputs and the dissemination of key results to various stakeholders. We discuss experiences and lessons from CONTRAST, a multidisciplinary alliance that had been funded by the European Commission over a 4-year period, in order to optimize schistosomiasis control and transmission surveillance in sub-Saharan Africa. From the start, project partners from Europe and Africa set out an ambitious goal: to sample data following standard protocols at all field sites and then sharing the data in a way that would enable all project partners to have access through a password-protected Internet-based data portal. This required anonymous agreement on several common standardized sample forms, ranging from the mundane but important issue of using the same units of measurement to more complex challenges, for instance agreeing on the same protocols for double-treatment of praziquantel in different settings. With the experiences gained by the CONTRAST project, this paper discusses issues of data management and sharing in research projects in the light of the current donor demand, and offers advice and specific suggestions for similar interdisciplinary research projects.     

医疗器械生产企业质量检验信息化系统的研发和应用

目的提高医疗器械生产企业生产和检验效率,提升企业质量体系管理水平,保障产品的安全有效。方法梳理生产企业业务流程,打通生产、检验和ERP系统数据库,搭建面向质量控制部门的操作软件。结果该系统已覆盖企业所有产品,实现检验过程的信息化和可视化。结论该系统的研发和应用能够完善生产企业质量管理追溯体系,提高产品质检效率和准确性。