全文获取类型
收费全文 | 750篇 |
免费 | 31篇 |
国内免费 | 14篇 |
专业分类
管理学 | 117篇 |
民族学 | 4篇 |
人口学 | 14篇 |
丛书文集 | 50篇 |
理论方法论 | 37篇 |
综合类 | 482篇 |
社会学 | 77篇 |
统计学 | 14篇 |
出版年
2024年 | 1篇 |
2023年 | 7篇 |
2022年 | 24篇 |
2021年 | 14篇 |
2020年 | 34篇 |
2019年 | 25篇 |
2018年 | 20篇 |
2017年 | 20篇 |
2016年 | 27篇 |
2015年 | 24篇 |
2014年 | 57篇 |
2013年 | 85篇 |
2012年 | 63篇 |
2011年 | 79篇 |
2010年 | 62篇 |
2009年 | 41篇 |
2008年 | 41篇 |
2007年 | 41篇 |
2006年 | 36篇 |
2005年 | 20篇 |
2004年 | 23篇 |
2003年 | 23篇 |
2002年 | 2篇 |
2001年 | 12篇 |
2000年 | 6篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1997年 | 1篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1991年 | 1篇 |
排序方式: 共有795条查询结果,搜索用时 93 毫秒
1.
Emergency material allocation is an important part of postdisaster emergency logistics that is significant for improving rescue effectiveness and reducing disaster losses. However, the traditional single‐period allocation model often causes local surpluses or shortages and high cost, and prevents the system from achieving an equitable or optimal multiperiod allocation. To achieve equitable allocation of emergency materials in the case of serious shortages relative to the demand by victims, this article introduces a multiperiod model for allocation of emergency materials to multiple affected locations (using an exponential utility function to reflect the disutility loss due to material shortfalls), and illustrates the relationship between equity of allocations and the cost of emergency response. Finally, numerical examples are presented to demonstrate both the feasibility and the usefulness of the proposed model for achieving multiperiod equitable allocation of emergency material among multiple disaster locations. The results indicate that the introduction of a nonlinear utility function to reflect the disutility of large shortfalls can make the material allocation fairer, and minimize large losses due to shortfalls. We found that achieving equity has a significant but not unreasonable impact on emergency costs. We also illustrate that using differing utility functions for different types of materials adds an important dimension of flexibility. 相似文献
2.
In July 2015, South Korea’s National Basic Livelihood Security System (NBLSS) was reformed for the purposes of eliminating welfare blind spots and reducing poverty. The reform is expected to affect the recipients’ economic behaviours and choices. In this study, we used changes in benefits and eligibility for the NBLSS under the customised benefit system to identify the effects of the change in the NBLSS on a proposed set of economic outcomes – income, labour supply, consumption, savings, poverty reduction. To estimate the effects, we used data from the 10th–12th waves of the Korea Welfare Panel Study and employed a difference‐in‐differences framework integrated with the propensity scores. We found that the NBLSS helps the poor to reduce financial and material hardships through income and consumption increments, but that it does not provide disincentives to the recipients from participating in the labour market or from saving. 相似文献
3.
The 1998 Korean Survey of Family Income and Expenditures was used to examine the overall consumption and saving behavior of Korean baby boomers and compared the differences in consumption and saving behavior between older and younger boomers. The t -test results indicated that the younger boomers allocated a significantly higher percentage of their expenditures on food away from home, household appliances, transportation and communication than did the older boomers, whereas the older boomers spent higher amounts and allocated larger budget shares on their children's education than did the younger boomers. The results of Ordinary Least-Squares (OLS) regression analysis showed that, holding other factors constant, older boomers not only spent significantly more in the total consumption expenditures and education expenditures, but older boomers also saved significantly less than did younger boomers. 相似文献
4.
Impacts of complex emergencies or relief interventions have often been evaluated by absolute mortality compared to international standardized mortality rates. A better evaluation would be to compare with local baseline mortality of the affected populations. A projection of population-based survival data into time of emergency or intervention based on information from before the emergency may create a local baseline reference. We find a log-transformed Gaussian time series model where standard errors of the estimated rates are included in the variance to have the best forecasting capacity. However, if time-at-risk during the forecasted period is known then forecasting might be done using a Poisson time series model with overdispersion. Whatever, the standard error of the estimated rates must be included in the variance of the model either in an additive form in a Gaussian model or in a multiplicative form by overdispersion in a Poisson model. Data on which the forecasting is based must be modelled carefully concerning not only calendar-time trends but also periods with excessive frequency of events (epidemics) and seasonal variations to eliminate residual autocorrelation and to make a proper reference for comparison, reflecting changes over time during the emergency. Hence, when modelled properly it is possible to predict a reference to an emergency-affected population based on local conditions. We predicted childhood mortality during the war in Guinea-Bissau 1998-1999. We found an increased mortality in the first half-year of the war and a mortality corresponding to the expected one in the last half-year of the war. 相似文献
5.
Liberia has gone through civil crisis for over a decade which has resulted in the destruction of infrastructure and disruption of basic services delivery particularly in Monrovia, the capital city. Most of the 1.3 million people living in Monrovia are without adequate environmental sanitation and waste management services which situation poses a serious health risk to the residents. The current waste management service coverage is less than 20% and disposal is by indiscriminate open dumping. In 2003, there were series of outbreaks of cholera epidemics in the city during which time a total of 26,651 cases were reported with many dying.The waste management plan was initiated as an exit strategy of UNICEF following an intervention response programme to assist the Monrovia City Corporation (MCC) whose capacity in this area had been crippled as a result of years of war, through the provision of support in solid waste collection and disposal.The objectives of the plan were to:
- (a) Improve waste management services delivery in the city.
- (b) Strengthen the ability of the MCC to plan and manage the waste services delivery.
- (c) Enhance cooperation of service beneficiaries through comprehensive and effective health education and service promotional campaign.
- (d) Enhance revenue generation and community participation through the promotion of private sector and CBOs/NGOs active involvement in the waste management service delivery.
6.
中美国家应急管理机制比较研究 总被引:1,自引:0,他引:1
针对学术界在国家应急管理机制研究方面缺乏全面比较分析的问题,文章运用比较分析方法研究了中美两国国家应急管理机制在组织机构、行动程序与法律保障三个方面的差异。通过研究提出,中国国家应急管理机制应在“设立应急管理协调机构”、“提高应急管理行动的计划性”、“制定应急管理纲领性法律”三个方面加以改进的建议。 相似文献
7.
Terrorist actions are aimed at maximizing harm (health, psychological, economical, and political) through the combined physical impacts of the act and fear. Immediate and effective response to a terrorist act is critical to limit human and environmental harm, effectively restore facility function, and maintain public confidence. Though there have been terrorist attacks in public facilities that we have learned from, overall our experiences in restoration of public facilities following a terrorist attack are limited. Restoration of public facilities following a release of a hazardous material is inherently far more complex than in industrial settings and has many unique technical, economic, social, and political challenges. For example, there may be a great need to quickly restore the facility to full operation and allow public access even though it was not designed for easy or rapid restoration, and critical information is needed for quantitative risk assessment and effective restoration must be anticipated to be incomplete and uncertain. Whereas present planning documents have substantial linearity in their organization, the “adaptive management” paradigm provides a constructive parallel paradigm for restoration of public facilities that anticipates and plans for uncertainty, inefficiencies, and stakeholder participation. Adaptive management grew out of the need to manage and restore natural resources in highly complex and changing environments with limited knowledge about causal relationships and responses to restoration actions. Similarities between natural resource management and restoration of a public facility after a terrorist attack suggest that integration of adaptive management principles explicitly into restoration processes will result in substantially enhanced and flexible responses necessary to meet the uncertainties of potential terrorist attacks. 相似文献
8.
突发环境事件在我国频频发生,且有愈演愈烈之趋势。应对突发环境事件,我们要建立完善的突发环境事件应急机制,力图在危机发生之虞,能有效的动员各类社会资源,防患于未然,努力将突发环境事件带来的危害降至最低。因此,文章将着重讨论突发环境事件的概念、突发环境事件应急机制的属性、应急机制等几个问题。 相似文献
9.
向文华 《西南科技大学学报(哲学社会科学版)》2003,20(1):14-16
城乡结合部农村信用社有其特殊的地缘优势,应抓住目前改革机遇,努力提高职工素质、改善办公条件、开发新产品新业务,并建立自己严格的职工考核体系。同时中国人民银行也应加大对农村信用社的扶持力度,共同促进农村信用社的发展。 相似文献
10.
王仁富 《淮海工学院学报(社会科学版)》2006,4(2):30-33
把突发事件处理机制纳入法制轨道是建立有效的危机管理机制的关键环节。从我国公共危机管理法制化建设的现状出发,首先简要阐述了加强公共危机管理法制化建设的必要性,然后进一步分析了目前中国公共危机管理法制建设中存在的优势及缺陷,并针对这些缺陷,提出了一些完善措施。 相似文献