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41.
李琼 《青海民族学院学报(社会科学版)》2006,32(3):111-114
为适应西部民族地区社会现代化的发展,必须要塑造与之相应的现代人格。文章对现代人格的特征以及西部民族地区塑造现代人格的现实可行性进行了阐述,并提出了塑造现代人格的基本对策。 相似文献
42.
郑缨 《西南农业大学学报(社会科学版)》2002,(3)
3 .2 滋阴生血、养血调血 中兽医学认为精血是畜禽正常生理功能活动的基本物质 ,由脾胃水谷精微气化而成。精血充盈 ,则体壮神旺 ,肌肉发达 ,四肢强劲有力 ,皮毛光泽滋润 ,母鸡则“日日生蛋不绝”。刘深廷等[17] (1995 )以增蛋灵 (陈皮、黄芪、白芍、川芎、当归、补骨脂、益母草、麦芽、罗勒 )按 1.5 %比例混料饲喂 2 0 0 0只罗曼蛋鸡 90d ,能使产蛋率提高 5 .2 1% ,饲料利用率提高 7.2 7%。血红蛋白增加 2 .8g % (P <0 .0 1) ;血清总蛋白增加 0 .85g % (P <0 .0 5 ) ;血清白蛋白增加 0 .73g % (P <0 .0 5 ) ;血清胆固醇增加 37.0 … 相似文献
43.
We employ vector autoregressive techniques to determine the current state of the labor queue. Unemployment rate differentials
have narrowed in recent years, potentially due to a change in the queue ordering, though a tight labor market and a stable
queue would yield similar results. We find no evidence that the queue ordering has changed, which brings into question the
resiliency of gains made by minority groups. We employ the same techniques to reveal the state of the queue across geographic
regions and find that substantial differences exist across regions, implying variation in the relative labor force status
of demographic groups. 相似文献
44.
影响服务业国际竞争力的因素分析 总被引:4,自引:1,他引:3
目前国内服务经济理论界对影响服务业国际竞争力因素的分析,大多用波特的国家竞争优势理论进行解释,同时应用于服务贸易研究。并且大多是定性的分析,并没有从实证的角度进行验证,本文从实证角度对影响服务业国际竞争力的因素进行探析,分析了影响中国服务业竞争力的主要因素,并提出提高中国服务业竞争力的若干政策建议。 相似文献
45.
Point processes are the stochastic models most suitable for describing physical phenomena that appear at irregularly spaced
times, such as the earthquakes. These processes are uniquely characterized by their conditional intensity, that is, by the
probability that an event will occur in the infinitesimal interval (t, t+Δt), given the history of the process up tot. The seismic phenomenon displays different behaviours on different time and size scales; in particular, the occurrence of
destructive shocks over some centuries in a seismogenic region may be explained by the elastic rebound theory. This theory
has inspired the so-called stress release models: their conditional intensity translates the idea that an earthquake produces
a sudden decrease in the amount of strain accumulated gradually over time along a fault, and the subsequent event occurs when
the stress exceeds the strength of the medium. This study has a double objective: the formulation of these models in the Bayesian
framework, and the assignment to each event of a mark, that is its magnitude, modelled through a distribution that depends
at timet on the stress level accumulated up to that instant. The resulting parameter space is constrained and dependent on the data,
complicating Bayesian computation and analysis. We have resorted to Monte Carlo methods to solve these problems. 相似文献
46.
Michael S. Rendall Ryan Admiraal Alessandra DeRose Paola DiGiulio Mark S. Handcock Filomena Racioppi 《Statistical Methods and Applications》2008,17(4):519-539
In non-experimental research, data on the same population process may be collected simultaneously by more than one instrument.
For example, in the present application, two sample surveys and a population birth registration system all collect observations
on first births by age and year, while the two surveys additionally collect information on women’s education. To make maximum
use of the three data sources, the survey data are pooled and the population data introduced as constraints in a logistic
regression equation. Reductions in standard errors about the age and birth-cohort parameters of the regression equation in
the order of three-quarters are obtained by introducing the population data as constraints. A halving of the standard errors
about the education parameters is achieved by pooling observations from the larger survey dataset with those from the smaller
survey. The percentage reduction in the standard errors through imposing population constraints is independent of the total
survey sample size. 相似文献
47.
48.
49.
Gayane Novikova 《Transition Studies Review》2004,11(3):213-223
The collapse of the USSR was accompanied by transformation of the South Caucasian latent ethnopolitical conflicts into local wars. Today the situation in the area of the conflicts is “neither war, nor peace”. Three unresolved conflicts of the South Caucasus can be considered as one of the most serious obstacles for establishing a regional security system.The article gives the general characteristics of these conflicts, the trends of their development, taking into account the time factor, and analyzes the behavioral models of the main players – de jure recognized and unrecognized de facto states of the South Caucasus. The basic objective of the main players should be to keep the situation on a level preventing the resumption of the armed conflicts. The attempts of forced resolution of the conflicts are fraught with destabilization of the situation not only in the area of any of these conflicts but in the whole region. 相似文献
50.
Lu Lin 《Statistical Papers》2004,45(4):529-544
The quasi-score function, as defined by Wedderburn (1974) and McCullagh (1983) and so on, is a linear function of observations.
The generalized quasi-score function introduced in this paper is a linear function of some unbiased basis functions, where
the unbiased basis functions may be some linear functions of the observations or not, and can be easily constructed by the
meaning of the parameters such as mean and median and so on. The generalized quasi-likelihood estimate obtained by such a
generalized quasi-score function is consistent and has an asymptotically normal distribution. As a result, the optimum generalized
quasi-score is obtained and a method to construct the optimum unbiased basis function is introduced. In order to construct
the potential function, a conservative generalized estimating function is defined. By conservative, a potential function for
the projected score has many properties of a log-likelihood function. Finally, some examples are given to illustrate the theoretical
results.
This paper is supported by NNSF project (10371059) of China and Youth Teacher Foundation of Nankai University. 相似文献