全文获取类型
收费全文 | 597篇 |
免费 | 33篇 |
国内免费 | 9篇 |
专业分类
教育 | 325篇 |
科学研究 | 138篇 |
各国文化 | 10篇 |
体育 | 56篇 |
综合类 | 32篇 |
文化理论 | 1篇 |
信息传播 | 77篇 |
出版年
2024年 | 2篇 |
2023年 | 45篇 |
2022年 | 78篇 |
2021年 | 183篇 |
2020年 | 164篇 |
2019年 | 11篇 |
2018年 | 8篇 |
2017年 | 2篇 |
2016年 | 1篇 |
2014年 | 3篇 |
2013年 | 13篇 |
2012年 | 14篇 |
2011年 | 20篇 |
2010年 | 6篇 |
2009年 | 20篇 |
2008年 | 10篇 |
2007年 | 15篇 |
2006年 | 10篇 |
2005年 | 10篇 |
2004年 | 7篇 |
2003年 | 4篇 |
2002年 | 6篇 |
2001年 | 1篇 |
2000年 | 2篇 |
1999年 | 3篇 |
1982年 | 1篇 |
排序方式: 共有639条查询结果,搜索用时 15 毫秒
1.
The current Coronavirus disease (Covid-19) pandemic has spread to about 220 countries of the world and has resulted in a significant number of deaths globally. Infections are still on the rise, and the impact on the global death rate could be devastating. There are fears over the likely impact of a large number of deaths on body sourcing and handling of cadavers for teaching and research. Historically, epidemics come with several challenges and have often led to some level of negligence of ethical practices and health and safety regulations associated with body sourcing and handling. The authors highlighted some emerging problems in this article, focusing on Africa and Nigeria in particular. These problems include a higher risk of coronavirus exposure for body handlers, shortage of cadavers for teaching and learning, a lack of standard regulations leading to unethical body sourcing and handling, and a lack of monitoring and collaboration needed for a well-coordinated Covid-19 pandemic response strategy. If these issues are ignored, the previous gains made in anatomical ethical practices may be destroyed. Some useful recommendations for policymaking geared toward prevention or curtailing these emerging issues have been instilled in this article. 相似文献
2.
Ayse Dilsad Yakut 《Journal of Research in Special Educational Needs》2021,21(4):345-354
The COVID-19 outbreak has had a profound impact on education worldwide. As a result of the educational institutions closures, it is likely that the impact on special education would be more detrimental since special education population becomes more vulnerable in the aftermath of an outbreak. In the scope of this study, a researcher created survey was used to examine educators’ teaching experiences and their perceptions about the impact of COVID-19 outbreak on special education students. The sample included 215 educators working in the Special Education and Rehabilitation Centers (SERCs) in Turkey. Results indicated that a large majority of the SERCs were not able to continue their education during the COVID-19 outbreak. In addition, there was a difference in educators’ experiences by their educational practices (normal weekly schedule, reduced schedule, most of the educational activities are suspended, and all of the educational activities are suspended). Perceived level of COVID-19 outbreak impact on special education students were found to be significantly higher for autism spectrum disorders, intellectual disabilities, attention deficit and hyperactivity disorders, visual impairments, hearing impairments, specific learning disabilities and gifted students, respectively. The conclusion highlights the need of global collaboration, disaster preparation and management for students with special needs. 相似文献
3.
[目的/意义] 以中国科学院文献情报中心"中国科讯"为例,分析专业图书馆应急科学传播服务的举措及成效,为应急事件下专业图书馆科学传播服务提供借鉴。[方法/过程] 梳理新冠肺炎疫情期间"中国科讯"微信公众号推送的服务内容,从日均用户增长和阅读量分析用户对不同类型内容的关注程度,提出应急科学传播服务的思考。[结果/结论] 疫情期间,"中国科讯"日均用户增长明显,电子资源保障类内容阅读量最高,其次为新冠病毒科技攻关进展相关内容、科普类直播和信息素养教育直播观看人数达到数万人。应急事件下,专业图书馆应加强特色服务的宣传、加强信息甄选和审核机制,重大公共卫生事件下应急科学传播工作预案缺失也需引起重视。 相似文献
4.
This paper uses a calibrated “pedagogical production function” model to estimate the potential long-term losses to children’s learning from the temporary shock of Covid-19 related school closures. It then models possible gains from two mitigation strategies. Without mitigation, children could lose more than a full year’s worth of learning from a three-month school closure because they will be behind the curriculum when they re-enter school and will fall further behind as time goes on. Remediation when children return to school reduces the long-term learning loss by half, but still leaves children more than half a year behind where they would have been with no shock. Remediation combined with long-term reorientation of curriculum to align with children’s learning levels fully mitigates the long-term learning loss due to the shock and surpasses the learning in the counterfactual of no shock by more than a full year’s worth of learning. Systems need to begin planning now for remediation programmes, and as they do so they should build programmes and train teachers in ways that can continue to produce benefits beyond the period immediately following reopening. 相似文献
5.
6.
近两届冬奥会女子自由式滑雪空中技巧比较研究 总被引:4,自引:0,他引:4
通过对 1998年第 18届冬奥会与 2 0 0 2年第 19届冬奥会女子自由式滑雪空中技巧比赛的动作难度、动作质量及实力格局的比较研究表明 :4年来世界女子自由式滑雪空中技巧项目的动作难度与动作质量呈显著同步提高之势 ,揭示了该项目的发展方向 ;从上届冬奥会的美、中、瑞、乌 4强到本届冬奥会的澳、加、俄、中 4强 ,世界女子自由式滑雪空中技巧项目的实力格局发生了变化 ;以李妮娜为代表的我国年轻运动员已跻身世界优秀运动员行列 相似文献
7.
在抗击新冠肺炎疫情过程中形成的抗疫精神是新时期大学生思想政治教育的重要内容,通过在课程教学中渗透抗疫精神、在科研和实验实习中融入抗疫精神、在学生活动中彰显抗疫精神,能有效促进学生高尚世界观、人生观、价值观的形成。 相似文献
8.
公共卫生是事关人民群众健康的公共事业,提供公共卫生服务、进行公共卫生管理是政府的重要职责。我国政府十分重视公共卫生事业发展,尤其是2003年"非典"疫情后,我国公共卫生服务体系建设不断完善、管理不断加强。但这次突如其来的新冠肺炎疫情发生与蔓延,仍然暴露出我国公共卫生管理的一些短板,亟待我们总结经验、深入研究,有针对性地采取措施加以解决。具体建议包括:(1)完善国家安全观;(2)强化法治建设;(3)强化政府治理能力建设;(4)健全信息公开、媒体与互联网管理制度;(5)强化专家的科学精神与职业素养;(6)健全突发公共卫生事件应急管理机制;(7)加强社会组织建设,完善社会力量参与机制;(8)提升公民应对疫情灾情素质;(9)切实把"预防为主"方针落到实处;(10)注重研究突发公共卫生事件期间的经济政策。 相似文献
9.
2019年底暴发的新冠肺炎疫情是一次重大的公共卫生事件,它对我国乃至世界的社会经济都将产生巨大而深远的影响。遗憾的是,这样的事件已不再是百年一遇,而是十年一遇或更短的时间,因此如何有效地应对大规模传染性疾病的暴发是人类社会面临的十分重要而迫切的问题。这次新冠肺炎疫情既是一个不幸,也是一个难得的学习机会。通过对疫情防控过程的回顾,以及对在该过程中所遇到的一些困难的梳理,发现很多问题最终都可以归结为供需矛盾的问题,而供给侧的挑战通常又都源于供应链的无序和混乱。文章结合现代供应链管理理论的一些基本原理,对疫情防控工作进行了分析并给出了建议,如建立全国联网传染病监测中心、国家防控战略物资安全库存、国家突发事件应急管理指挥中心等。另外,疫后经济重建也至关重要,因此还从供应链思维的角度,分析了新冠肺炎疫情的行业影响,以及企业复工复产过程中应该注意的事项。 相似文献
10.
用于预防和治疗新型冠状病毒的药物尚在研发试验阶段,核酸检测方法和试剂研发是防控新冠病毒之重要措施.对核酸检测方法和试剂专利进行分析有利于科研工作者利用专利情报,提高科研成果的专利保护意识.以新型冠状病毒感染肺炎防疫专利信息共享平台为基础数据来源,对新型冠状病毒核酸检测和诊断的175项专利申请数据进行整理-筛选-归纳-可... 相似文献