首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   13篇
  免费   1篇
管理学   1篇
社会学   11篇
统计学   2篇
  2020年   1篇
  2019年   3篇
  2017年   2篇
  2016年   2篇
  2015年   1篇
  2013年   2篇
  2002年   1篇
  1997年   1篇
  1986年   1篇
排序方式: 共有14条查询结果,搜索用时 15 毫秒
1.
Not only ETO (Engineering to Order), but even serial production industry should know how to deal with projects and their schedule: plant commissioning, shutdown, introducing new products and similar circumstances should be managed with adequate planning and resource allocation techniques to create a schedule useful in decision making during the execution. The current complex reality, with evolving technologies and fierce pressure to reach the market as soon as possible, pushes the project managers to use more advanced techniques than waterfall planning, such as agile or lean. It also requires them to take a holistic view and manage concurrent tasks in complex projects. The contributions of this paper are two: the proposal to control specific parallel groups of waterfall activities under uncertain environments, which can lead to iterations and reworks, as a single concurrent Activity Managed by Kanban Methods (AMKM). This activity can be subsequently embedded into traditional scheduling approaches as CPM-PERT. The second contribution is the feasibility of its application in industrial environments due to the affordability of simulation software. Two use cases are shown as evidence. It is not a disruptive proposal, but a kaizen action based on very mature technologies. Finally, it is suggested some improvements to be implemented in Project Management Software due to this ‘kaizen’ proposal.  相似文献   
2.
A review of the US ‘program evaluation standards’ (PES), undertaken in a series of workshops and meetings of networks of evaluators in Africa, resulted in modifications to those standards. The result was presented to a plenary session of the Inaugural Conference of the African Evaluation Association in September 1999, attended by over 300 evaluators from 35 countries. The AfrEA Conference decided that a systematic effort should be made to produce a list of African evaluation guidelines, similar to the PES, and that this checklist should be reviewed by national evaluation associations and networks in Africa and field tested in several countries. Ten national and regional networks and associations suggested modifications to the text and endorsed the final version of the guidelines.  相似文献   
3.
A very large number of skilled Africans are found to be operating in the developed industrialized countries of the West at a time when their national economies are crying out for their services. Ways must be found to return as many of these skilled Africans as possible to the African economy. This out-migration or brain drain has a number of causes, including: 1) real incomes in Africa have been on the decline in the past several years while prices were constantly rising. Professional and salaried workers seek employment in other countries that pay much higher salaries. 2) Promotion on criteria other than merit is common in Africa and diligence and high productivity are not often rewarded. 3) Political interference frustrates public services professionals; they are rendered unable to use their professional judgement in making decisions that affect the economic and social fabric. 4) The inadequacy of higher education facilities and opportunities in African countries encourages the brightest and best qualified Africans to go to Western Europe and North America for school; they tend not to return after graduation. 5) Political upheavals and general instability contribute to feelings of individual insecurity, sending Africans to seek sanctuary in more politically stable and less repressive environments. Actions needed to control this out-migration include: 1) incentive systems should be reviewed with a view to providing realistic levels of renumeration and working conditions should be made to promote job satisfaction and self-actualization. 2) Capacities and capabilities should be strengthened so as to ensure that production of goods and services becomes indigenized and that the development and operation of institutions emanates from within the continent. 3) Educational services should be expanded and improved to obviate the need for large numbers of Africans to seek educational opportunities abroad.  相似文献   
4.
Religiosity is associated with sexual behavior in adolescence; however, religiosity is a multidimensional construct, and it is not clear how different patterns of religiosity may differentially predict sexual behaviors and romantic relationships. We apply latent class analysis to nationally representative data from the National Longitudinal Study of Adolescent to Adult Health (Add Health; N = 10,149) to examine (1) what religiosity profiles exist among adolescents and (2) how they predict sexual behavior and romantic relationship status in adolescence and young adulthood. Religiosity in multiple domains was associated with lesser odds of sexual behavior compared to profiles marked by only affiliation, private, or public religiosity. Findings suggest that examining multiple facets of religiosity together is important for understanding how religiosity is associated with sexual behavior.  相似文献   
5.
This essay examines the social and political contexts of the establishment of the first Philippine Australian Solidarity Group (PASG) and then its subsequent demise in the face of intra-group and external challenges. The demand to decolonise the conduct of solidarity within the PASG was more than a case of alleged racism, but a symptom of two intersecting phenomena. There was the growing population of immigrants who sought to find an identity in Australia through activism. Their solid political agenda, thus, intersected with the need to re-evaluate the structure and political agenda of PASG as an ‘old’ social movement. Drawing from the critical junctures in Philippine–Australian social movement, the essay sheds light on the risks of a centralised political body with a ‘diverse’ membership but also the benefits of responding to challenges to continuously re-write the rules of activist engagement, thus to re-invigorate the politics of resistance.  相似文献   
6.
This article shows that the threshold model appropriately analysed can explain the emigration process as a consequence of the network features, where the willingness to emigrate depends on the personal and household conditions borne by the emigrant. In such a case, the emigration process can be defined in terms of a Pólya schema, and the emigration rate converges almost surely to a random variable with a beta distribution, which fully characterizes the network (assimilation, integration, separation or marginalization). The model is applied to Ecuador, which has experienced an unprecedented wave of emigration since 1998. We show that, despite the massive exodus, the process does not constitute a diaspora, because Ecuadorians do not interact appropriately with natives.  相似文献   
7.
ABSTRACT

This study analyzes the Hispanic Churches in American Public Life National Survey (n = 2,060) data set to examine the relationship between religious affiliation and commitment and education, marital status, and social views in the U.S. Latino community. The findings indicate that religious affiliation and high rates of religious participation and commitment are important factors that are positively and negatively related to Latino education, marriage, and social action. This study found a positive relationship between high rates of religious participation and commitment and high rates of marriage, social action, and conservative views on church–state relations and social issues like abortion and homosexual relations, but not on other social views like the death penalty and the ordination of women. In general, conservative religiosity (in this case Protestant Evangelicalism and Pentecostalism) is positively related to high rates of marriage and social action. However, the data also suggest that high rates of religious participation and commitment do not necessarily result in higher income and educational levels, although this may be due to the fact that many Latinos recently converted from Catholicism to Protestantism and thus have not had a chance to adopt and benefit from Protestant educational attitudes and resources.  相似文献   
8.
"We replicate prior research into the determinants of English language proficiency among immigrants using a dataset that controls for potential biases stemming from selective emigration, omitted variables, and the mismeasurement of key constructs. In general, we reproduce the results of earlier work, leading us to conclude that despite inherent methodological problems, research based on cross-sectional censuses and surveys yields fundamentally accurate conclusions. In particular, we find unambiguous evidence that English proficiency rises with exposure to U.S. society, and we reaffirm earlier work showing a clear pattern of language assimilation among Mexican migrants to the United States."  相似文献   
9.
The socio-demographic and psychosocial approval determinants of the work conducted by the truth and reconciliation commissions (TRC) are analysed based on original survey data from Chilean, Argentinian and Peruvian samples (N = 2,947). A linear multiple regression analysis was carried out (R2 between .28 and .44; f2 between .45 and .78) which reveals the positive effect of commission functions perceived achievement, mainly the knowledge of truth (β = .28), justice (β = .15) and the contribution in creating a common history (β = .15). An analysis by country reveals in Chile salient variables such as institutional trust, political ideas, institutional apologies and hope and sadness emotions. In Argentina, together with TRC functions, the degree of information about the work of the commission and the perception of a negative social climate appear as relevant predictors. As regards Peru, the degree of exposure to violence appears as a good predictor of TRC’s work support. The results show the relevance of TRC functions’ fulfillment, as well as the role of institutional variables in the approval of the work they have done.  相似文献   
10.
Adolescent sexuality research has expanded to include noncoital behaviors, but there is limited knowledge about individual factors such as cultural values associated with these sexual behaviors outside of industrialized nations. Thus, we examined associations between Latino values (familism, sexual guilt, and importance of female virginity) and three sexual behaviors (making out, oral sex, and vaginal sex), among adolescents ages 12–19 (53% female) in Mexico. Findings indicate that sexual guilt and importance of female virginity were consistently associated with all sexual behaviors. Some associations differed by gender and school level. For instance, sexual guilt was a better predictor of high school girls’ oral and vaginal sex. This study expands our understanding of adolescent sexuality in Mexico.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号