全文获取类型
收费全文 | 98篇 |
免费 | 6篇 |
专业分类
教育 | 73篇 |
科学研究 | 12篇 |
各国文化 | 1篇 |
体育 | 8篇 |
文化理论 | 4篇 |
信息传播 | 6篇 |
出版年
2023年 | 1篇 |
2022年 | 2篇 |
2021年 | 2篇 |
2020年 | 4篇 |
2019年 | 7篇 |
2018年 | 8篇 |
2017年 | 6篇 |
2016年 | 3篇 |
2015年 | 8篇 |
2014年 | 5篇 |
2013年 | 16篇 |
2012年 | 5篇 |
2011年 | 5篇 |
2010年 | 2篇 |
2009年 | 4篇 |
2008年 | 6篇 |
2007年 | 2篇 |
2006年 | 3篇 |
2005年 | 1篇 |
2004年 | 2篇 |
2002年 | 1篇 |
2001年 | 2篇 |
2000年 | 2篇 |
1996年 | 1篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1984年 | 1篇 |
1981年 | 1篇 |
1980年 | 1篇 |
排序方式: 共有104条查询结果,搜索用时 0 毫秒
61.
Dharamveer Yadav Sandhya Mishra Monika Gupta P. J. John Praveen Sharma 《Indian journal of clinical biochemistry : IJCB》2013,28(1):30-37
Reference intervals (RI) are the most common decision support tool used for interpretation of numerical laboratory reports. The quality of the RI can play as large a role in result interpretation as the quality of the result itself. As such there is hardly any study examining RI for liver specific biochemical parameters in Indian population especially north Indians having drastically different food habits as compared to rest of the India. So there is a need to establish the RI for north Indian population. Present study was conducted on 2,021 apparently healthy individuals of north Indian origin ranging in age from 15–60 years, were selected randomly using defined criteria. Lipemic, hemolysed, icteric and stored samples were also excluded adopting preanalytical criteria for rejection of sample. Non parametric methodology for determination of RI was adopted as most of the biochemical parameters included revealed non Gaussian distribution. Data were analyzed for middle 95 percentile (2.5th–97.5th percentile), median and 95 % confidence interval using SPSS software package version 10.0. The upper and the lower limit of RI (reported Vs observed) for bilirubin (0–1.2 Vs 0.30–1.30 mg/dL), serum glutamate oxaloacetate transferase (SGOT) (0–41 Vs 13–52.80 IU/L), serum glutamate pyruvate transferase (SGPT) (0–50 Vs 10–68 IU/L) showed wide variation as compared to reported standard RI however Gamma glutamyl transferase (GGT) (0–50 Vs 5.00–50.60 IU/L) remained within the reported standard RI. Further gender wise evaluation revealed higher cutoff in males (AST 14–55, ALT 11–70.35, GGT 6.76–51.09 in IU/L, bilirubin (0.40–1.34 mg/dL) as compared to females (SGOT 13–50.43, SGPT 9–63.43, GGT 3.92–48.70 in IU/L, Bilirubin 0.30–1.20 mg/dL) for both enzymatic and non enzymatic biochemical parameters. The variations may be attributed to dietary pattern smoking and alcoholism. 相似文献
62.
Interchange - The implementation of academic freedom can be difficult both for policymakers and university authorities. A good example of these difficulties is the case of Poland. These... 相似文献
63.
64.
Kathryn E. Linder Frank Rudy Cooper Elizabeth M. McKenzie Monika Raesch Patricia A. Reeve 《Innovative Higher Education》2014,39(3):217-229
Backward design is a course creation method that encourages teachers to identify their goals for student understanding and measurable objectives for learning from the outset. In this article we explore the application of backward design to the production of scholarly articles. Specifically, we report on a writing group program that encourages group goal setting and the acquisition of skills required to achieve these goals. We discuss the relationships between backward design principles and the development of scholarship for publication as well as offer suggestions of best practices for academic writers. 相似文献
65.
66.
67.
Hiltrud W. R. Otto Nicole Schuitmaker Bettina Lamm Monika Abels Yan Serdtse Relindis Yovsi Mark Tomlinson 《Child development》2017,88(4):1235-1250
This study introduces a peri‐urban context of poverty to the study of child development in Africa in contrast to the more typical assessments in middle‐class and rural contexts. Spot observations were used to assess universal caregiving behaviors toward seventy‐six 3‐month‐old infants. Results show that middle‐class infants experienced distal parenting behaviors instantiated by mothers, whereas rural children experienced proximal parenting practices in interactions with others. Infants growing up in poverty had mothers and other caretakers involved at mostly low levels. They experienced low levels of body contact, body stimulation, and object stimulation, and high levels of face‐to‐face positions. The study indicates that caregiving in the context of poverty does not necessarily follow familiar pathways and needs to be contextualized accordingly. 相似文献
68.
The two case studies reported in this article contribute to a better understanding of how inquiry tasks and activities are employed as resourceful means for learning in higher professional education. An observation-based approach was used to explore characteristics of and challenges in students’ participation in collaborative inquiry activities in two first-year introductory courses in teacher and computer engineering education. The findings highlight that the students’ activities varied with regard to focus and structure and were shaped by the types of inquiry tasks, i.e. case analysis and project-based work, by how the inquiry process was guided and supported and the way the domain-specific knowledge resources and practices were introduced. An exploratory strategy and rather confined use of resources characterised the teacher education students’ inquiry, while collaborative programming, a trial-and-error approach and extensive use of external resources that of the engineering education students’. For the teacher students, the main challenge was to construct meaning of conceptual knowledge and to integrate different forms of knowledge as a lens for analysing practice. The computer engineering students experienced challenges with unpacking the underlying principles and knowledge black-boxed in the widely available resources. The article suggests that future research and curriculum designs should depart from a more refined understanding of inquiry as a learning means, by connecting inquiry activities to the specific knowledge domains, the type of tasks most suited to explore each of this domains and the challenges that may arise for students. 相似文献
69.
This study investigated an under-explored area in the field of academic practice: the meaning of the complex notion of authenticity in teaching. Combining conceptual with empirical investigation, data included philosophical texts, repertory grid interviews with fifty-five lecturers and students from Law, Physics and English Literature, and fourteen focus groups with forty-six students. Philosophical conceptions were compared to those held by students and lecturers. Qualitative and quantitative analyses of repertory grids revealed differences in experts’/philosophers’ and lay-people’s conceptions of authenticity and additionally showed how lecturers’ and students’ conceptions of authenticity in teaching differed from their conceptions of teaching effectiveness. Focus groups identified linkages between authenticity in teaching and actual teacher actions and attributes that students perceive as being conducive to their learning. The findings enhance the meaning of authenticity, show how it matters in university teaching and offer a hitherto lacking theoretical foundation for further research. 相似文献
70.
目的:推导一种高精度、使用简单且不含有分形维数的细颗粒泥沙沉速计算方法,以应用于原位观测和实现不同计算结果间的相互比较。创新点:1.推导出了不含有分形维数的泥沙絮团沉速公式;2.将LISST等高精度仪器应用于泥沙絮团密度计算中。方法:1.通过理论推导,得到不含分形维数的粘性细颗粒泥沙沉速公式;2.通过试验对该公式的精度进行研究,并在此基础上研究不同密度计算方法对该公式精度的影响;3.研究不同沉速状态下,泥沙絮团的沉降规律。结论:1.通过对比实测沉速与计算沉速的结果可以看出,本文提出的絮团沉速公式在计算泥沙絮团的沉速时精度较高;2.通过比较两种不同密度计算方法的结果可以看出,变密度方法具有更高的精度;3.通过拟合结果可以看出,公式(15)中的参数η与泥沙所处的沉降区间有关,参数γ与泥沙自身的性质有关。 相似文献