排序方式: 共有35条查询结果,搜索用时 93 毫秒
1.
2.
Naoki Ueno 《思想、文化和活动》2013,20(4):240-257
This study explores street mathematics as they are embedded in the context of a governmental reorganization of the Nepalese bazaar. The forced introduction of the metric system caused merchants to organize a practice of mathematical conversions whereby the old system of measurement could be coordinated with the new allowing the merchants to comply with government requirements while responding to the public's distrust of the new system. The author argues that the invention and social organization of new artifacts for conversionfrom the old to the new system permitted the authority of the old system of measurement to be reconstructed in the new metric system. The social organization of the new system was an ideological practice which eventually “reified” or made real the new cultural artifacts in actual contexts of the institutionalized practice of distribution and exchange. 相似文献
3.
Hideki Ueno 《Researches on Population Ecology》1994,36(1):121-124
Heritabilities and genetic correlations for body size characters and development period in a coccinellid beetle,Harmonia axyridis were estimated by a sib-analysis experiment. Positive genetic correlations were detected between size characters and development
rate. If this is upheld in the field, genetic variation would be eliminated, as the loci affecting the characters are supposed
to be fixed. However, the results indicated moderate heritabilities for all characters. Possible explanations for the results
are discussed. 相似文献
4.
Hideki Nagatsuka N. Balakrishnan 《Journal of Statistical Computation and Simulation》2013,83(10):1915-1931
In this paper, we propose a consistent method of estimation for the parameters of the three-parameter inverse Gaussian distribution. We then discuss some properties of these estimators and show by means of a Monte Carlo simulation study that the proposed estimators perform better than some other prominent estimators in terms of bias and root mean squared error. Finally, we present two real-life examples to illustrate the method of inference developed here. 相似文献
5.
In this work, we propose a consistent method of estimation for the parameters of the three-parameter lognormal distribution. We then discuss some properties of these estimators and show by means of a Monte Carlo simulation study that the proposed estimators perform better than some other prominent estimators in terms of bias and root mean squared error. Finally, we present two real-life examples to illustrate the method of estimation proposed. 相似文献
6.
PERCEPTIONS OF SOCIAL SUPPORT AVAILABILITY AND COPING BEHAVIORS AMONG GAY MEN WITH HIV 总被引:1,自引:0,他引:1
Analyzing face-to-face, semistructured interviews, we discuss how perceptions of social support availability are formed among gay men coping with HIV. Experiences of receiving support increased perceived availability for specific types of support from specific individuals, but receiving support also gave these men a general sense that someone would be available for assistance. Other aspects of social relationships, such as closeness and role expectations, contributed to gay men's perceptions of support availability. The results suggest that when people with common problems cope together, collective knowledge of support availability may emerge from observations of others' support exchanges as well as from discussions of support experiences. Individuals or groups of individuals may actively create and modify their perceptions of support availability when they cope with anticipated problems. Thus, the study provided an opportunity to integrate concepts of coping and social support into the collective action and social constructionist frameworks. 相似文献
7.
Takahiro Hasegawa Saori Misawa Shintaro Nakagawa Shinichi Tanaka Takanori Tanase Hiroyuki Ugai Akira Wakana Yasuhide Yodo Satoru Tsuchiya Hideki Suganami 《Pharmaceutical statistics》2020,19(4):436-453
Many clinical research studies evaluate a time‐to‐event outcome, illustrate survival functions, and conventionally report estimated hazard ratios to express the magnitude of the treatment effect when comparing between groups. However, it may not be straightforward to interpret the hazard ratio clinically and statistically when the proportional hazards assumption is invalid. In some recent papers published in clinical journals, the use of restricted mean survival time (RMST) or τ ‐year mean survival time is discussed as one of the alternative summary measures for the time‐to‐event outcome. The RMST is defined as the expected value of time to event limited to a specific time point corresponding to the area under the survival curve up to the specific time point. This article summarizes the necessary information to conduct statistical analysis using the RMST, including the definition and statistical properties of the RMST, adjusted analysis methods, sample size calculation, information fraction for the RMST difference, and clinical and statistical meaning and interpretation. Additionally, we discuss how to set the specific time point to define the RMST from two main points of view. We also provide developed SAS codes to determine the sample size required to detect an expected RMST difference with appropriate power and reconstruct individual survival data to estimate an RMST reference value from a reported survival curve. 相似文献
8.
Hideki Yoshihara 《Long Range Planning》1977,10(2):41-45
In this article the author examines the four features found in the emerging Japanese multinational enterprises, (1) joint ventures with participation of trading companies, (2) the R & D capabilities, (3) the Japanese style of management, and (4) socio-political reactions in Asian countries. These features provide the Japanese multinational enterprises with both opportunities and challenges for their future development. Proper consideration is given to the comparison with the American multinational enterprises. 相似文献
9.
在伪满洲国的文学研究中,即使有关于个别作家及作品的论述,把历史小说作为一个种类进行论述并不多见.但是在拥有悠久历史文化积蓄的中国,以这种丰富的历史典故为题材的文学作品对于五四以后的新文学也是有力的表现方法.尤其是在严厉的言论统治、不能自由表达的伪满洲国,是有效的欺骗敌人的表达手段.作家们以历史上有名人物及故事为题材,描写异民族支配下的中国人民的苦恼及悲哀.在伪满洲国,历史小说是值得重视的文学题材. 相似文献
10.