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排序方式: 共有250条查询结果,搜索用时 31 毫秒
201.
刘国锋 《广西大学学报(社会科学版)》2008,30(4):46-49
在20世纪初,发生了一场被后人称之为"语言转向"的运动.维也纳学派在这场运动中起着至关重要的作用,他们通过对基本逻辑句法的分析,表明传统的形而上学命题并没有认识论的意义.同时,他们也意识到,尽管这场运动需借助现代逻辑才能进行,但是,它关注的问题却深刻得多,那就是逻辑后面所蕴含的本质.也就是说,逻辑形式体现出所有知识的共同的东西.这种逻辑至上的观点自有其合理性,但是,它的目标注定是无法达到的.这是因为,产生于社会生活中的逻辑最终还是受社会生活所制约. 相似文献
202.
To increase employment from desired race or gender groups, employers nearly always first turn to recruiting from outside their organization. But a few years after such initiatives are undertaken, diversity numbers typically remain low or even decrease, turnover among recruits from the sought‐after groups is high, and the efforts are threatened by their recurrent cost. Employers need to break this fruitless cycle by thinking more strategically. Without an inclusive organizational climate that retains and fully utilizes minority employees after hire, simply recruiting more such employees will not lead to sustainable changes in workforce demographics. Drawing on empirical research, this paper describes six “red flags” that identify workplaces not ready to recruit. Only after organizational changes address the deficiencies identified by the red flags will the time for minority recruitment be at hand. But by then special focused recruitment may not be necessary; when employers change their workplace cultures to become truly inclusive, word gets around. 相似文献
203.
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. 相似文献
204.
Mary Lou Rasmussen Sulamith Graefenstein Andrew Singleton Anna Halafoff Gary Bouma 《International Journal of Social Research Methodology》2020,23(6):695-709
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. 相似文献
205.
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。 相似文献
206.
Developing a Model for the Measurement of Social Inclusion and Social Capital in Regional Australia 总被引:6,自引:3,他引:3
Lou Wilson 《Social indicators research》2006,75(3):335-360
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. 相似文献
207.
楼育萍 《绍兴文理学院学报》2006,26(1):63-66
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。 相似文献
208.
三维各向同性谐振子有一对称的守恒张量,由守桓张量可直接求得振子的特征能量和轨道长短轴的长度,确定轨道长短轴方向及轨道平面法线方向的三欧勒角,可由守桓张量的分量及机械能、角动量决定. 相似文献
209.
刘胜华 《长春理工大学学报(高教版)》2005,(4)
开放的管理方式是计算机实验室管理的发展方向。作者根据长期的实验室管理的实践,总结了对计算机实验室进行开放式管理的经验,并且提出了在管理过程当中需要注意的一些问题。 相似文献
210.
传统理论认为,个人的全面自由发展只能存在于“必需和外在规定要做的劳动的彼岸”,只能通过缩短劳动时间、消灭专业分工才能实现。但从知识经济的发展趋势看,社会总劳动及人们的实际劳动时间不可能减少,专业分工也不可能消灭。这意味着,我们善于个人全面发展的理论应当修正。笔者认为,一种集谋生劳动和自由活动,专业分工和全面发展于一身的新型劳动———知识创新劳动将成为人们实现自由全面发展的现实途径。 相似文献