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1.
Development of an Asset Value Map for Disaster Risk Assessment in China by Spatial Disaggregation Using Ancillary Remote Sensing Data 总被引:1,自引:0,他引:1
《Risk analysis》2018,38(1):17-30
The extent of economic losses due to a natural hazard and disaster depends largely on the spatial distribution of asset values in relation to the hazard intensity distribution within the affected area. Given that statistical data on asset value are collected by administrative units in China, generating spatially explicit asset exposure maps remains a key challenge for rapid postdisaster economic loss assessment. The goal of this study is to introduce a top‐down (or downscaling) approach to disaggregate administrative‐unit level asset value to grid‐cell level. To do so, finding the highly correlated “surrogate” indicators is the key. A combination of three data sets—nighttime light grid, LandScan population grid, and road density grid, is used as ancillary asset density distribution information for spatializing the asset value. As a result, a high spatial resolution asset value map of China for 2015 is generated. The spatial data set contains aggregated economic value at risk at 30 arc‐second spatial resolution. Accuracy of the spatial disaggregation reflects redistribution errors introduced by the disaggregation process as well as errors from the original ancillary data sets. The overall accuracy of the results proves to be promising. The example of using the developed disaggregated asset value map in exposure assessment of watersheds demonstrates that the data set offers immense analytical flexibility for overlay analysis according to the hazard extent. This product will help current efforts to analyze spatial characteristics of exposure and to uncover the contributions of both physical and social drivers of natural hazard and disaster across space and time. 相似文献
2.
Linda Sweet Maryam Bazargan Lois McKellar Joanne Gray Amanda Henderson 《Women and birth : journal of the Australian College of Midwives》2018,31(1):59-68
Background
There is no current validated clinical assessment tool to measure the attainment of midwifery student competence in the midwifery practice setting. The lack of a valid assessment tool has led to a proliferation of tools and inconsistency in assessment of, and feedback on student learning.Objective
This research aimed to develop and validate a tool to assess competence of midwifery students in practice-based settings.Design
A mixed-methods approach was used and the study implemented in two phases. Phase one involved the development of the AMSAT tool with qualitative feedback from midwifery academics, midwife assessors of students, and midwifery students. In phase two the newly developed AMSAT tool was piloted across a range of midwifery practice settings and ANOVA was used to compare scores across year levels, with feedback being obtained from assessors.Findings
Analysis of 150 AMSAT forms indicate the AMSAT as: reliable (Cronbach alpha greater than 0.9); valid—data extraction loaded predominantly onto one factor; and sensitivity scores indicating level of proficiency increased across the three years. Feedback evaluation forms (n = 83) suggest acceptance of this tool for the purpose of both assessing and providing feedback on midwifery student’s practice performance and competence.Conclusion
The AMSAT is a valid, reliable and acceptable midwifery assessment tool enables consistent assessment of midwifery student competence. This assists benchmarking across midwifery education programs. 相似文献3.
4.
Michael A. L. Hayashi Marisa C. Eisenberg Joseph N. S. Eisenberg 《Risk analysis》2019,39(10):2214-2226
Achieving health gains from the U.N. Sustainable Development Goals of universal coverage for water and sanitation will require interventions that can be widely adopted and maintained. Effectiveness—how an intervention performs based on actual use—as opposed to efficacy will therefore be central to evaluations of new and existing interventions. Incomplete compliance—when people do not always use the intervention and are therefore exposed to contamination—is thought to be responsible for the lower‐than‐expected risk reductions observed from water, sanitation, and hygiene interventions based on their efficacy at removing pathogens. We explicitly incorporated decision theory into a quantitative microbial risk assessment model. Specifically, we assume that the usability of household water treatment (HWT) devices (filters and chlorine) decreases as they become more efficacious due to issues such as taste or flow rates. Simulations were run to examine the tradeoff between device efficacy and usability. For most situations, HWT interventions that trade lower efficacy (i.e., remove less pathogens) for higher compliance (i.e., better usability) contribute substantial reductions in diarrheal disease risk compared to devices meeting current World Health Organization efficacy guidelines. Recommendations that take into account both the behavioral and microbiological properties of treatment devices are likely to be more effective at reducing the burden of diarrheal disease than current standards that only consider efficacy. 相似文献
5.
美国加州所采用的质量评估与改进系统(QRIS)在促进学前教育质量提升的同时,也面临着诸多挑战,例如发展速度缓慢、评估衡量标准不一、数据分析困难等。为此,加州要求所有学前教育项目都必须参与教育质量评估与改进系统、增强质量评估与改进系统的灵活性和有效性,并对质量评估与改进系统的评估员进行专门培训。加州的QRIS改革举措可为我国学前教育质量监测体系的构建提供借鉴,例如建立全覆盖的学前教育质量评估与改进体系,丰富学前教育质量评估与改进体系的内涵,以及提出针对学前教育质量评估结果的改进措施等。 相似文献
6.
The widely used empirical Bayes (EB) and full Bayes (FB) methods for before–after safety assessment are sometimes limited because of the extensive data needs from additional reference sites. To address this issue, this study proposes a novel before–after safety evaluation methodology based on survival analysis and longitudinal data as an alternative to the EB/FB method. A Bayesian survival analysis (SARE) model with a random effect term to address the unobserved heterogeneity across sites is developed. The proposed survival analysis method is validated through a simulation study before its application. Subsequently, the SARE model is developed in a case study to evaluate the safety effectiveness of a recent red‐light‐running photo enforcement program in New Jersey. As demonstrated in the simulation and the case study, the survival analysis can provide valid estimates using only data from treated sites, and thus its results will not be affected by the selection of defective or insufficient reference sites. In addition, the proposed approach can take into account the censored data generated due to the transition from the before period to the after period, which has not been previously explored in the literature. Using individual crashes as units of analysis, survival analysis can incorporate longitudinal covariates such as the traffic volume and weather variation, and thus can explicitly account for the potential temporal heterogeneity. 相似文献
7.
ABSTRACTSocial work education has embraced a major shift towards competency based education. A core component of competency based education is that students must actually demonstrate competence. The ability to define terms or even to explain principles of effective social work practice is no longer sufficient. In this vein, social work educators are tasked with providing students a means of demonstrating an ability to practice necessary social work skills. Digital badges are a recent trend in higher education that can facilitate the shift towards competency based education. With this shift in mind, this paper outlines the requirements and benefits of a self-care badge. Students who completed the self-care badge completed readings on self-care, completed self-assessments and worksheets, developed written self-care plans, enacted the plans, monitored progress and completed a final report on the self-care practices. Overall, students described the benefits of the badge and the focus on actually practicing self-care rather than simply increasing their knowledge about self-care. 相似文献
8.
《Risk analysis》2018,38(1):194-209
This article presents the findings from a numerical simulation study that was conducted to evaluate the performance of alternative statistical analysis methods for background screening assessments when data sets are generated with incremental sampling methods (ISMs). A wide range of background and site conditions are represented in order to test different ISM sampling designs. Both hypothesis tests and upper tolerance limit (UTL) screening methods were implemented following U.S. Environmental Protection Agency (USEPA) guidance for specifying error rates. The simulations show that hypothesis testing using two‐sample t ‐tests can meet standard performance criteria under a wide range of conditions, even with relatively small sample sizes. Key factors that affect the performance include unequal population variances and small absolute differences in population means. UTL methods are generally not recommended due to conceptual limitations in the technique when applied to ISM data sets from single decision units and due to insufficient power given standard statistical sample sizes from ISM. 相似文献
9.
ABSTRACTResearch has explored how care managers in elder care – who often function as ‘street-level bureaucrats’ – regard professional discretion. The way in which length of work experience affects care managers’ use of professional discretion remains, however, unexplored. This article present findings from 12 focus groups with 60 care managers. By bringing attention to how care managers experience the needs assessment process, this article sheds light on how these ‘street-level bureaucrats’ struggle when they try to balance their clients’ needs against institutional frameworks and local guidelines. Length of work experience seems to play a role in how care managers claim to use professional discretion. Experienced care managers describe how they deviate from the guidelines at times in order to create an increased scope of action in their decision-making process. Those with less time in the profession describe greater difficulties in this respect. Findings suggest that research should explore if length of work experience plays a role in the actual way in which care managers assess needs and make decisions. As such, they contribute to our understanding of how needs assessment processes are navigated by professionals while also pointing towards the nature of professional discretion in gerontological social work. 相似文献
10.
在风险社会背景下,生物安全法的风险防控机制旨在平衡现代生物技术研发应用、生态环境开发利用与生态保护和公共卫生安全保障之间的内在张力,体现并遵循生物安全法的价值理念。风险防控机制由风险评估、风险管理和风险沟通三方面组成,其有效运行需以科学判断的风险评估为前提,适度运用“成本-效益”分析手段,实现风险管理的最优化路径选择,并突破单向度的路径依赖,以实现全面的风险沟通。 相似文献