基于改进突变级数法的农产品物流产业评估模型研究

对农产品物流产业发展水平进行客观、准确的分析与评估,可为政府部门优化与调整产业发展、合理制定产业规划提供科学依据。运用突变级数法与离差最大化法构建农产品物流产业评估模型,并选取广东和山东两省20102014年相关数据对构建的评估模型进行实例分析。结果表明：广东省农产品物流产业发展的优势主要体现在信息化水平与经济基础两方面,基础设施建设则是当前制约其产业发展的关键因素;而庞大的产业规模是现阶段支撑山东省农产品物流产业发展的重要力量。改进的突变级数评估模型既克服了主观赋权的局限,又不失科学性和合理性,计算简单,具有重要实用价值。     

高新技术产业集群发展模式选择分析--基于福建省的典型研究

高新技术产业集群迅猛发展成为带动区域经济发展的重要力量,发展高新技术产业集群是大势所趋,文章在分析研究福建高新技术产业发展水平的基础上,构建福建省高新技术产业集群发展模式选择分析模型,对福建省高新技术产业集群发展模式选择进行实证分析,并得出目前适合福建高新技术产业集群发展的模式为政府政策导向协作网络模式。     

未焊透缺陷安全尺寸的评价研究

未焊透是压力管道焊接接头常见缺陷之一,严重时会导致管道的承载能力明显降低,进而引发严重的安全事故。 目前我国的《在用工业管道定期检验规程》中对未焊透管道的定级是很保守的,为了减少对未焊透缺陷的返修,文章采 用非线性有限元分析的方法,通过简化未焊透管道的影响因素,并研究在不同载荷工况下管道失效模式与缺陷尺寸的关 系,获得了未焊透管道的极限载荷曲线簇;再运用塑性力学分析方法对有限元分析结果进行筛选,得到了焊接缺陷的安 全尺寸;最终通过试验验证极限载荷数值分析结果的合理性。研究结果表明含有超标焊接缺陷（如未焊透）的管道不通 过复杂应力计算和安全评定即可在保证安全前提下最大限度地使用。     

英语口语教学中的多元化评价

教学与评价是现代教育中的两个重要方面.随着语言评价研究的发展,对语言能力的评价逐渐从单一维度的测试转向各种评价工具和评价方式的多元化评价.本文在总结多元化评价的基本理念的基础上,分析了多元化评价在口语能力评价中的作用,结合口语课堂教学,提出多元化评价在口语教学中的具体实施方法.     

生命周期评价与环境伦理

评价材料与环境协调性的生命周期评价方法有环境伦理的哲学基础,是环境伦理的核心观点的科学体现。然而,从科学角度来看的生命周期评价方法的局限性则未必真是它的局限性,在对其作出环境伦理学的说明之后,有些局限性不过是哲学与科学的内在矛盾的体现,是科学自身的局限性的折射而已。     

Psychometric properties of the “parent-child relationship inventory” (PCRI) in a portuguese forensic sample

In Portugal, there is a gap regarding psychological tests validated for forensic contexts, particularly those related to child custody issues. The Parent–Child Relationship Inventory (PCRI) is one of the most used instruments in child custody contexts. This study aimed to analyze the psychometric properties of PCRI in a Portuguese forensic sample. PCRI factorial structure and psychometric properties were analyzed in a sample of 144 parents involved in child custody assessments. The questionnaire showed good internal consistency, except for the parental support, autonomy, and role orientation scales. It also showed good discriminant capacity. The confirmatory factor analysis did not replicate the 7-factor model proposed by Gerard. The results were discussed based on the use of PCRI in the context of child custody assessment.     

农产品品牌竞争力评价指标体系及评价方法的构建

农业品牌化是农业工业化和现代化的重要标志,也是提高农产品质量安全水平和市场竞争力的重要途径。我国正处在农业品牌化的初级阶段,对农产品品牌竞争力评价的探讨是农业品牌化理论研究的重要组成部分,也将在实践上对农产品品牌竞争力的提高起到积极的引导和促进作用。文章经过理论分析构建了以市场评价和质量评价为主,兼顾效益评价和潜力评价的农产品品牌评价指标体系,并采用了层次分析法确定指标权重,用综合评分法确定分值,得出对农产品品牌竞争力的相对评价。     

公共行政人才素质测评科学化研究

人才素质测评方法与技术已在我国公共行政人才素质测评中得到广泛应用,但却存在着一定的缺陷和不足,即测评理论体系尚不完善、测评方法和技术欠缺科学性。因此,必须从思想理论上、测评体制及其方法、技术上加以完善,以达到更加科学的程度,才能更好地实现人才素质测评的功效。     

An Evaluation of Stimulus Preference Assessment Methodology in Organizational Behavior Management

The organizational behavior management literature has yielded few stimulus preference assessment methodologies for use with employees. The current investigation compared three preference assessments (ranking, survey, and multiple stimulus without replacement procedures) found in the organizational behavior management literature for their ability to predict reinforcers for direct care staff members’ behavior. In the first experiment all assessments were effective for predicting reinforcers, but the results were limited by a lack of control items in the assessment. In the second experiment the survey and ranking assessments both proved to be effective for identifying reinforcers and neutral or ineffective stimuli. Implications of these results and directions for future research are discussed.     

Racial/ethnic and socio‐economic biases in child maltreatment severity assessment in Spanish child protection services caseworkers

Evidence from several countries has shown the over‐representation of racial/ethnic minority groups in child protection services (CPS). The objective of the present study was to explore whether racial/ethnic and socio‐economic biases influence Spanish CPS caseworkers' judgements of the severity of child maltreatment. Moreover, the study attempted to explore the influence on these judgements of the use of structured instruments and professional experience. Two case vignettes of child maltreatment were presented to 405 CPS caseworkers and 169 students of social work and psychology. Family ethnic origin and income were manipulated in the vignettes. The findings showed no statistical evidence of biases related to family ethnic origin or socio‐economic status (SES) in Spanish CPS caseworkers' judgements of maltreatment severity. Biases related to family SES were found for students for the vignettes of physical abuse. CPS caseworkers and students who did not use a structured instrument to assess maltreatment severity tended to underestimate the severity for the vignettes of parental incapacity to control child/adolescent behaviour and to overestimate it for the vignettes of physical abuse. CPS caseworkers who used a structured instrument showed higher percentages of accuracy and inter‐rater agreement, supporting the relevance of structured tools in reducing potential caseworkers' biases.