Geographic Information System (GIS) software was used to create a watershed vulnerability model for Bernalillo County, New Mexico. Watershed vulnerability was investigated as a function of soil erosion and infiltratio...Geographic Information System (GIS) software was used to create a watershed vulnerability model for Bernalillo County, New Mexico. Watershed vulnerability was investigated as a function of soil erosion and infiltration criteria: precipitation, land slope, soil erodibility (K-factor), vegetation cover (NDVI), land use, drainage density, saturated hydraulic conductivity, and hydrologic soil group. Respective criteria weights were derived using a Fuzzy Analytic Hierarchy Process (FAHP) supported by expert opinion. A survey of 10 experts, representing New Mexico Institute of Mining and Technology (NMT), the New Mexico Bureau of Geology and Mineral Resources (NMBGMR), and the United States Geologic Survey (USGS), provided model input data for an integrated pair-wise comparison matrix for soil erosion and for infiltration. Individual criteria weights were determined by decomposing the respective fuzzy synthetic extent matrix using the centroid method. GIS layers were then combined based on criteria weights to produce maps of soil erosion potential and infiltration potential. A composite watershed vulnerability map was generated by equal weighting of each input map. Model results were categorized into five vulnerability categories: not vulnerable (N), slightly vulnerable (SV), moderately vulnerable (MV), highly vulnerable (HV), and extremely vulnerable (EV). The resulting FAHP/GIS model was used to generate a watershed vulnerability map of discrete areas in Bernalillo County, which may be vulnerable to stormwater run-off events and soil erosion. Such high volume run-off events can cause erosion damage to property and infrastructure. Alternatively, in areas near urban development, stormwater run-off may contribute non-point-source pollutant contamination of New Mexico’s surface water resources. The most problematic areas in Bernalillo County are present in the Eastern and Northwestern portions. However, less than 1% of the total area lies within the lowest and highest vulnerability categories with the majority centered around moderate vulnerability. The results of the model were compared with a previously published crisp AHP method. Both methods showed similar regional vulnerability trends. This MCDS/GIS approach is intended to provide support to local governments and decision makers in selection of suitable structural or nonstructural stormwater control measures.展开更多
Climate Change Vulnerability Assessment(VA) tools for forest ecosystems and forest-dependent communities are important for making decisions and understanding the impact of climate change on both social and natural s...Climate Change Vulnerability Assessment(VA) tools for forest ecosystems and forest-dependent communities are important for making decisions and understanding the impact of climate change on both social and natural systems.However,the tools are poorly coordinated,making it difficult for policymakers to carry out VAs properly.The aim of this study was to analyze VA literature worldwide to find representative case studies in terms of methods and tools applied and which have been successful in performing VAs on forests and forest-dependent communities.All successful VA studies analyzed had common characteristics such as significant funding,data availability and technical capacity.An additional characteristic was the development of an integrated approach that considered the vulnerability of both ecosystems and communities by combining qualitative and quantitative methods.Community members and relevant stakeholders were significantly involved in a participatory process that concluded with the identification of adaptation measures.The case studies also revealed how policymakers need to choose suitable methods and tools to undertake efficient assessment of vulnerabilities.They need to consider several aspects of the VA process such as subject matter,availability of resources,time and scale.展开更多
Orphans and Vulnerable Children (OVC) and their families face many challenges but there are opportunities to provide care and support programmes for them in their communities. This paper presents the achievements and ...Orphans and Vulnerable Children (OVC) and their families face many challenges but there are opportunities to provide care and support programmes for them in their communities. This paper presents the achievements and implications of HIV Programme Development Project (HPDP) funded by World Bank on care and support services for OVC in Osun State, Nigeria. Eight Civil Society Organisations (CSOs) were engaged by Osun State Agency for the Control of AIDS (OSACA) as part of HPDP to provide care and support services for OVC between year 2013 and 2015. Using reporting tools, data collected by the CSOs were entered into District Health Information System 2 (DHIS2) platform and analysed using Microsoft Excel. In addition, Key Informant Interviews (KII) were conducted among the selected CSOs, OVC and the caregivers who were beneficiaries of HPDP in Osun State, Nigeria. A total of 12,353 OVC were reached and about half of them were female. There was an increase in the trends of number of OVC seen and the support services provided from the year 2013 to 2015. Of the 12,353 OVC that benefitted from this programme, 1905 (15.4%) received health care services, 5383 (43.6%) received nutritional services, 5317 (43.0%) received educational services and 9861 (79.8%) were provided with psychosocial support services. About 503 (4.1%) of the OVC received economic strengthening services while 270 (2.2%) of household heads were provided with economic support. However, 3 OVC were lost to follow-up, 14 OVC voluntarily withdrew from the project and 6 OVC died. The FGD and KII revealed that the project was very impactful in transforming the lives of the OVC. Programmes for children orphaned and made vulnerable by HIV/AIDS will contribute to the achievement of HIV/ AIDS prevention and control efforts. The HIV/AIDS free generation can be built by responding to the physical, social and mental needs of these children and their families in their communities. There is a need to scale-up this programme.展开更多
目的:探讨维持性血液透析患者心理脆弱现状及影响因素。方法:采用便利抽样方法选取2023年3—7月桂林医学院附属医院血液净化中心收治的380例维持性血液透析患者。收集所有患者一般资料,评价所有患者心理脆弱情况、社会支持情况。比较不...目的:探讨维持性血液透析患者心理脆弱现状及影响因素。方法:采用便利抽样方法选取2023年3—7月桂林医学院附属医院血液净化中心收治的380例维持性血液透析患者。收集所有患者一般资料,评价所有患者心理脆弱情况、社会支持情况。比较不同一般资料患者心理脆弱量表(mental vulnerability questionnaire,MVQ)评分,统计所有患者MVQ评分及领悟社会支持量表(perceived social support scale,PSSS)评分情况。分析维持性血液透析患者MVQ评分及PSSS评分相关性。分析维持性血液透析患者心理脆弱的影响因素。结果:不同文化程度、婚姻状况、居住情况、家庭人均月收入、透析时长、有无并发症患者MVQ评分比较,差异有统计学意义(P<0.05)。维持性血液透析患者心理脆弱呈中等水平,其各维度条目均分由高到低为人际问题、身心症状、精神症状;领悟社会支持呈中等水平。心理脆弱总分、身心症状、精神症状、人际问题评分与社会支持总分、家庭支持、朋友支持、其他支持评分均呈负相关(P<0.05)。居住情况、有无并发症、社会支持是维持性血液透析患者心理脆弱的主要影响因素(P<0.05)。结论:维持性血液透析患者心理脆弱呈中等水平,其中独居、伴有并发症、社会支持是维持性血液透析患者心理脆弱的主要影响因素,应积极制订有效性、针对性的干预措施帮助其降低心理脆弱程度,提高心理健康水平,从而提高生活质量。展开更多
While malicious samples are widely found in many application fields of machine learning,suitable countermeasures have been investigated in the field of adversarial machine learning.Due to the importance and popularity...While malicious samples are widely found in many application fields of machine learning,suitable countermeasures have been investigated in the field of adversarial machine learning.Due to the importance and popularity of Support Vector Machines(SVMs),we first describe the evasion attack against SVM classification and then propose a defense strategy in this paper.The evasion attack utilizes the classification surface of SVM to iteratively find the minimal perturbations that mislead the nonlinear classifier.Specially,we propose what is called a vulnerability function to measure the vulnerability of the SVM classifiers.Utilizing this vulnerability function,we put forward an effective defense strategy based on the kernel optimization of SVMs with Gaussian kernel against the evasion attack.Our defense method is verified to be very effective on the benchmark datasets,and the SVM classifier becomes more robust after using our kernel optimization scheme.展开更多
This study examined the factors associated with financial support in old age from three primary mechanisms-personal savings,family support,and social insurance-to explore the implications for the future development of...This study examined the factors associated with financial support in old age from three primary mechanisms-personal savings,family support,and social insurance-to explore the implications for the future development of China's rural social welfare system.Cross-sectional surveys of 1392 young and middle-aged rural residents were conducted in July and August2012.The results showed that while social insurance was increasingly acceptable,personal savings and family support still had fundamental value.Combining the three mechanisms,the rural old-age welfare system presented nontraditional features.China's new rural endowment insurance is discussed as a means to address the need for financial support among the rural aging population.展开更多
文摘Geographic Information System (GIS) software was used to create a watershed vulnerability model for Bernalillo County, New Mexico. Watershed vulnerability was investigated as a function of soil erosion and infiltration criteria: precipitation, land slope, soil erodibility (K-factor), vegetation cover (NDVI), land use, drainage density, saturated hydraulic conductivity, and hydrologic soil group. Respective criteria weights were derived using a Fuzzy Analytic Hierarchy Process (FAHP) supported by expert opinion. A survey of 10 experts, representing New Mexico Institute of Mining and Technology (NMT), the New Mexico Bureau of Geology and Mineral Resources (NMBGMR), and the United States Geologic Survey (USGS), provided model input data for an integrated pair-wise comparison matrix for soil erosion and for infiltration. Individual criteria weights were determined by decomposing the respective fuzzy synthetic extent matrix using the centroid method. GIS layers were then combined based on criteria weights to produce maps of soil erosion potential and infiltration potential. A composite watershed vulnerability map was generated by equal weighting of each input map. Model results were categorized into five vulnerability categories: not vulnerable (N), slightly vulnerable (SV), moderately vulnerable (MV), highly vulnerable (HV), and extremely vulnerable (EV). The resulting FAHP/GIS model was used to generate a watershed vulnerability map of discrete areas in Bernalillo County, which may be vulnerable to stormwater run-off events and soil erosion. Such high volume run-off events can cause erosion damage to property and infrastructure. Alternatively, in areas near urban development, stormwater run-off may contribute non-point-source pollutant contamination of New Mexico’s surface water resources. The most problematic areas in Bernalillo County are present in the Eastern and Northwestern portions. However, less than 1% of the total area lies within the lowest and highest vulnerability categories with the majority centered around moderate vulnerability. The results of the model were compared with a previously published crisp AHP method. Both methods showed similar regional vulnerability trends. This MCDS/GIS approach is intended to provide support to local governments and decision makers in selection of suitable structural or nonstructural stormwater control measures.
基金the FAO Forestry Department for the opportunity to conduct the research and for their support
文摘Climate Change Vulnerability Assessment(VA) tools for forest ecosystems and forest-dependent communities are important for making decisions and understanding the impact of climate change on both social and natural systems.However,the tools are poorly coordinated,making it difficult for policymakers to carry out VAs properly.The aim of this study was to analyze VA literature worldwide to find representative case studies in terms of methods and tools applied and which have been successful in performing VAs on forests and forest-dependent communities.All successful VA studies analyzed had common characteristics such as significant funding,data availability and technical capacity.An additional characteristic was the development of an integrated approach that considered the vulnerability of both ecosystems and communities by combining qualitative and quantitative methods.Community members and relevant stakeholders were significantly involved in a participatory process that concluded with the identification of adaptation measures.The case studies also revealed how policymakers need to choose suitable methods and tools to undertake efficient assessment of vulnerabilities.They need to consider several aspects of the VA process such as subject matter,availability of resources,time and scale.
文摘Orphans and Vulnerable Children (OVC) and their families face many challenges but there are opportunities to provide care and support programmes for them in their communities. This paper presents the achievements and implications of HIV Programme Development Project (HPDP) funded by World Bank on care and support services for OVC in Osun State, Nigeria. Eight Civil Society Organisations (CSOs) were engaged by Osun State Agency for the Control of AIDS (OSACA) as part of HPDP to provide care and support services for OVC between year 2013 and 2015. Using reporting tools, data collected by the CSOs were entered into District Health Information System 2 (DHIS2) platform and analysed using Microsoft Excel. In addition, Key Informant Interviews (KII) were conducted among the selected CSOs, OVC and the caregivers who were beneficiaries of HPDP in Osun State, Nigeria. A total of 12,353 OVC were reached and about half of them were female. There was an increase in the trends of number of OVC seen and the support services provided from the year 2013 to 2015. Of the 12,353 OVC that benefitted from this programme, 1905 (15.4%) received health care services, 5383 (43.6%) received nutritional services, 5317 (43.0%) received educational services and 9861 (79.8%) were provided with psychosocial support services. About 503 (4.1%) of the OVC received economic strengthening services while 270 (2.2%) of household heads were provided with economic support. However, 3 OVC were lost to follow-up, 14 OVC voluntarily withdrew from the project and 6 OVC died. The FGD and KII revealed that the project was very impactful in transforming the lives of the OVC. Programmes for children orphaned and made vulnerable by HIV/AIDS will contribute to the achievement of HIV/ AIDS prevention and control efforts. The HIV/AIDS free generation can be built by responding to the physical, social and mental needs of these children and their families in their communities. There is a need to scale-up this programme.
文摘目的:探讨维持性血液透析患者心理脆弱现状及影响因素。方法:采用便利抽样方法选取2023年3—7月桂林医学院附属医院血液净化中心收治的380例维持性血液透析患者。收集所有患者一般资料,评价所有患者心理脆弱情况、社会支持情况。比较不同一般资料患者心理脆弱量表(mental vulnerability questionnaire,MVQ)评分,统计所有患者MVQ评分及领悟社会支持量表(perceived social support scale,PSSS)评分情况。分析维持性血液透析患者MVQ评分及PSSS评分相关性。分析维持性血液透析患者心理脆弱的影响因素。结果:不同文化程度、婚姻状况、居住情况、家庭人均月收入、透析时长、有无并发症患者MVQ评分比较,差异有统计学意义(P<0.05)。维持性血液透析患者心理脆弱呈中等水平,其各维度条目均分由高到低为人际问题、身心症状、精神症状;领悟社会支持呈中等水平。心理脆弱总分、身心症状、精神症状、人际问题评分与社会支持总分、家庭支持、朋友支持、其他支持评分均呈负相关(P<0.05)。居住情况、有无并发症、社会支持是维持性血液透析患者心理脆弱的主要影响因素(P<0.05)。结论:维持性血液透析患者心理脆弱呈中等水平,其中独居、伴有并发症、社会支持是维持性血液透析患者心理脆弱的主要影响因素,应积极制订有效性、针对性的干预措施帮助其降低心理脆弱程度,提高心理健康水平,从而提高生活质量。
基金supported by the National Natural Science Foundation of China under Grant No.61966011.
文摘While malicious samples are widely found in many application fields of machine learning,suitable countermeasures have been investigated in the field of adversarial machine learning.Due to the importance and popularity of Support Vector Machines(SVMs),we first describe the evasion attack against SVM classification and then propose a defense strategy in this paper.The evasion attack utilizes the classification surface of SVM to iteratively find the minimal perturbations that mislead the nonlinear classifier.Specially,we propose what is called a vulnerability function to measure the vulnerability of the SVM classifiers.Utilizing this vulnerability function,we put forward an effective defense strategy based on the kernel optimization of SVMs with Gaussian kernel against the evasion attack.Our defense method is verified to be very effective on the benchmark datasets,and the SVM classifier becomes more robust after using our kernel optimization scheme.
基金supported by some projects from Chinese central universities'basic scientific research[Grant No.SKZD201206]Humanities and Social Sciences Project from Education Ministry[grant number:13YJC630131]Nanjing Agricultural University Social Science Fund[Grant No.SK2012006]
文摘This study examined the factors associated with financial support in old age from three primary mechanisms-personal savings,family support,and social insurance-to explore the implications for the future development of China's rural social welfare system.Cross-sectional surveys of 1392 young and middle-aged rural residents were conducted in July and August2012.The results showed that while social insurance was increasingly acceptable,personal savings and family support still had fundamental value.Combining the three mechanisms,the rural old-age welfare system presented nontraditional features.China's new rural endowment insurance is discussed as a means to address the need for financial support among the rural aging population.