论行政垄断的可豁免性

长期以来,学界对行政垄断进行了反复的、多视角的研究论证,基本是以否定的态度评价行政垄断,认为行政垄断具有诸多危害性,应当彻底消除.这种观点违背了辩证唯物主义关于一分为二的原理,只看到了行政垄断消极的一面,而没有正视其积极的一面,即忽视了行政垄断在一定条件下的正当性.从一些国家和地区实践来看,在特定时期、对特定行业实施行政垄断不仅是必要的,而且是必需的,对于维护国家的经济安全和社会公共利益具有不可替代的作用.因此,对这种行政垄断应当在一定条件下豁免适用反垄断法.     

Sample size calculations for time-averaged difference of longitudinal binary outcomes

In clinical trials with repeated measurements, the responses from each subject are measured multiple times during the study period. Two approaches have been widely used to assess the treatment effect, one that compares the rate of change between two groups and the other that tests the time-averaged difference (TAD). While sample size calculations based on comparing the rate of change between two groups have been reported by many investigators, the literature has paid relatively little attention to the sample size estimation for time-averaged difference (TAD) in the presence of heterogeneous correlation structure and missing data in repeated measurement studies. In this study, we investigate sample size calculation for the comparison of time-averaged responses between treatment groups in clinical trials with longitudinally observed binary outcomes. The generalized estimating equation (GEE) approach is used to derive a closed-form sample size formula, which is flexible enough to account for arbitrary missing patterns and correlation structures. In particular, we demonstrate that the proposed sample size can accommodate a mixture of missing patterns, which is frequently encountered by practitioners in clinical trials. To our knowledge, this is the first study that considers the mixture of missing patterns in sample size calculation. Our simulation shows that the nominal power and type I error are well preserved over a wide range of design parameters. Sample size calculation is illustrated through an example.     

Methodological challenges of designing a survey to capture young people’s (non-binary) affiliations in relationship to religion,sexuality and gender

ABSTRACT

Large-scale population studies surveying young people in relation to their worldviews have tended to frame their identities in a fixed and limited capacity while also treating the topics of religion/spirituality and sexuality/gender as discrete categories of scholarly analysis. We highlight the affordances and limitations of foregrounding fixed religious, sexual and gender-based identity categories in the process of collecting and analysing data related to the worldviews of young people. In this paper we argue the value of studying the complexities and intersections of these identities and worldviews together in one study. We do this through reference to the Australia’s Generation Z (AGZ) study: the first nationally representative sample focused on providing an evidence-based understanding of both the religious/spiritual/non-religious and sexuality/gender identities and worldviews of young Australians aged 13–18. We discuss how we built on existing surveys in designing the AGZ survey. We also demonstrate how this survey allowed for the incorporation of young people’s non-binary understandings of religion, sexuality and gender.     

中原油田文25 东块聚合物微球调驱研究与应用

针对中原油田高温高盐油藏开发后期的剩余油挖潜，提出了聚合物微球深部调驱的技术设想；以现有微球制备技术为基础，通过调整水相比、交联比和耐温抗盐单体共聚，研制出了适于文东试验区孔喉尺寸及油藏特征的系列调驱微球，并在高温高盐的油藏条件下，评价了微球的膨胀性能、抗剪切强度和持久稳定性；采用均质和非均质填砂模型，模拟了微球浓度、注入量和注入模式对调驱效果的影响，为矿场试验方案的合理制订提供了理论支撑；文25 东微球调驱矿场试验共实施2 个层系9 个井组，通过“PI 技术”的动态调整，共注各类调驱微球276.58 t，总体实现了注入压力升高、波及体积改善和明显增油的目的；通过微球调驱，区块自然递减显著下降，油田稳产基础进一步得到增强。     

马克思主义研究的三重意识及其范式内涵

方法论问题是近些年马克思主义研究中凸显的前沿和热点问题。对马克思主义研究的方法论的探讨,具有重大的理论意义和现实价值。学界对这一问题的探讨,虽然众说纷纭,成果层出不穷,但是仍存在不彻底、不明晰的状况。其根源就在于缺乏既能合理领会马克思主义精神实质,又能真正把握当代中国的时代发展命脉的科学创见和创新成果。"前提划界"、"比较研究"和"面向现实"等三重方法论意识,是马克思主义研究需要亟待明确和重视的关键点。将这三重意识统一于当代中国马克思主义研究范式,应是马克思主义研究实现理论突破与范式转换的重要举措。     

马克思主义研究的三重意识及其自觉运用——“中外比较视域中的马克思主义研究”理论研讨会的方法论启示

中外比较视域中的马克思主义研究理论研讨会暨中国马克思主义哲学史学会2011年年会,4月16日至19日在河南科技大学召开。与会学者围绕会议主题就相关问题展开深入探讨,形成了丰富的马克思主义研究的共识和成果。从理论研究方法论的维度,可以将这些共识和成果集中概括为比较研究意识、前提划界意识和面向现实意识等三重理论研究意识及其在马克思主义研究中的自觉运用。这对于我们进行马克思主义研究及其理论的创新与发展具有深远意义和重大启示。     

The Sexual Maltreatment of Students with Disabilities in American School Settings

This study presents results from the first nationwide survey of students with disabilities who were sexually maltreated in American schools. The Web survey results, which were mostly provided by caregivers, parents/guardians, and professional advocates, illuminate the types of sexual maltreatment committed, the characteristics of the victims and the abusers, where in the school setting the maltreatment occurred, the manner in which the maltreatment was reported, and the school’s response to the maltreatment. More than two-thirds of the maltreated students experienced at least one form of contact sexual maltreatment, and fully 35% of all incidences of maltreatment occurred more than 10 times. The majority of the incidences of maltreatment were committed by school personnel.     

Developing a Model for the Measurement of Social Inclusion and Social Capital in Regional Australia

This paper reviews the literature on social inclusion and social capital to develop a framework to guide the selection of items and measures for the forthcoming SA Department of Human Services Survey of Social Inclusion to be held in the region of Northern Adelaide in South Australia. Northern Adelaide is a region with areas of high socio-economic disadvantage, characterized by high unemployment and poverty. Survey respondents’ perceptions of social inclusion and social capital in Northern Adelaide will be examined by developing indices, which address the theoretical schema discussed in this paper. Epistemological differences between seminal theorists on social inclusion and social capital suggest the development of a broad suite of indices is required to enable the collection of data of interest to researchers from differing theoretical perspectives. Data collected in the survey will be mapped using Geographic Information System (GIS) technologies against locations within Northern Adelaide and in relation to existing Australian Bureau of Statistics, Commonwealth and State Government databases on age, gender, relative socio-economic disadvantage and other variables.     

性别的追问--对卡瑞·邱吉尔《九重天》的女性主义阅读

卡瑞.邱吉尔是英国当代著名的女剧作家。她的力作《九重天》描述了女性在父权制下受压迫的状况,向建立在男女社会性别差异和异性恋基础上的传统家庭发起了抨击。她构建了一个反传统,无性别及家庭角色压迫,充满多重性欲的乌托邦,进而解构了本质主义在性别上的二元对立。剧中,邱吉尔把殖民压迫和性别压迫并置,并采用了反串的戏剧技巧,进一步加深了性别压迫的主题。