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41.
The aim of this study was to measure the levels of lactase, sucrase, maltase, leucine amino peptidase and gamma-glutamyl transpeptidase in duodenum of Indian patients with duodenal ulcer. The effect of duodenum inflammation on these brush border enzymes has also been analysed in this study. Levels of lactase, sucrase, maltase, leucine amino peptidase and gamma-glutamyl transpeptidase were assessed in duodenal biopsies of 20 patients of duodenal ulcer and 20 non-ulcer dyspepsia. The duodenal biopsy specimens were also examined histopathologically for presence or absence of inflammation. There was no significant difference (p>0.05) in the activity of above mentioned enzyme levels in both the groups. Only levels of gamma-glutamyl transpeptidase were significantly decreased in patients of duodenal ulcer with duodenal inflammation. This study shows that only the levels of gamma-glutamyl transpeptidase were significantly decreased in patients of duodenal ulcer with inflammation but no change in duodenal enzymes due to duodenal ulcer as compared to non-ulcer dyspepsia.  相似文献   
42.
Duodenal ulcer is a common disease and is considered acid-peptic disease. Duodenal ulcer patients are known to have higher incidence of antral gastritis and duodentitis than general population. Thus one can expect some alteration in the enzyme products of mucosal cells of antrum and duodenum in this condition. The present study was planned in 30 patients of duodenal ulcer and 30 of non-ulcer dyspepsia. After overnight fast, upper gastrointestinal endoscopy was done using forward viewing fibreoptic endoscope. Two pairs of biopsies were taken from the antrum and two from the descending duodenum using standard biopsy forceps. One pair of biopsy from each site was taken in 10% formal saline for histopathological examination. One pair of biopsies from each site was collected in saline for the measurement of disaccharidases by Dahlquist method. Activities of lactase, sucrase and maltase were significantly higher in descending duodenum mucosa as compared to antral mucosa in both groups. Activities of these enzymes in antrum and duodenum of both groups did not differ significantly. No significant difference was found in disaccharidases in antrum and descending duodenum in patients with or without histological gastritis. This study suggests that the disaccharidases do not change in antrum and duodenum of ulcer patients as compared to the patients with non-ulcer dyspepsia.  相似文献   
43.
This study investigates business schools' intentions about offering e‐commerce education (ECE) using an extended theory of planned behavior (ETPB). The need for an adequate match between future supply and demand of e‐commerce skills constitutes the main motivation for the study. The results show that most business schools consider ECE important for an adequate preparation of their students for today's competitive labor market. In addition, the proposed ETPB fits well the empirical data and predicts 65.2% of the variances in the schools' intentions about offering ECE. The results can help business schools in their curriculum decisions in at least two ways: (1) through the likely effect of social contagion and (2) through the constructs in the ETPB. First, institutional theory clearly indicates that organizations tend to adopt a new behavior when there is evidence that other organizations in their population have adopted or are likely to adopt that behavior. Having provided such evidence for ECE, this study is likely to promote the adoption of this educational product innovation. Second, the fact that the postulated ETPB fits well the empirical data suggests that administrators of business schools may pay attention to the key constructs when making curriculum decisions. Overall, the study has both theoretical and practical implications. Theoretically, it contributes to a growing literature on the adoption of innovative educational products like ECE. Practically, it provides valuable insights that administrators of business schools can use in their strategic curriculum decision making.  相似文献   
44.
Adenosine deaminase activity (ADA) was estimated in cerebrospinal fluid (CSF) of 30 patients of tuberculous meningitis (TBM) and 10 patients each of partially treated pyomeningitis (PTM), aseptic meningitis (AM) and pyogenic meningitis (PM). Mean ADA levels in CSF of TBM patients were higher (18.22 U/L) as compared to 6.28 U/L, 3.43 U/L and 7.98 U/L in PTM, AM and PM respectively. This difference of ADA values in CSF between TBM and other types of meningitis was statistically significant (p<0.01) different. Sensitivity and specificity of ADA levels in CSF of children to diagnose tuberculous meningitis was 66.6% and 90% respectively at 10 U/L cut off of ADA levels in CSF. ADA levels in CSF could also differentiate PTM, AM and PM from TBM with a specificity of 90%, 100% and 80% respectively.  相似文献   
45.
This one-year collaborative study examined the role of narrative in promoting new forms of culturally responsive literacy learning in two contrasting international preschool contexts. The qualitative project was carried out by a U.S.-based teacher educator and a Palestinian-based teacher educator who examined the benefits of culturally responsive children's literature, child-centred and open-ended questions, narrative-based dictation and art activities, and co-constructed stories between parents and children. The findings indicate that small-scale changes in the use of narrative in literacy pedagogy can strengthen the classroom as a literacy community, foster culturally valued modes of thinking that deepen children's connections to stories, and strengthen children's engagement with a culturally responsive sense of aesthetic representation. The study's implications emphasise the power of narrative to deepen young children's engagement with literacy in contrasting international settings, and the productive role of cross-cultural collaborative research to diversify current definitions of high-quality early literacy education at the global level.  相似文献   
46.
The purpose of this study was to identify the degree to which Jordanian school counselors were seen by teachers and principals to possess and display leadership behaviors related to Bolman and Deal’s (1997) transformational ‘four framework approach’ to leadership. This was based on the view that such leadership would relate to counselors’ effectiveness in their roles. A questionnaire was administered to a sample of teachers and principals designed to assess counselor leadership on four key dimensions (i) structural leadership, (ii) human resources leadership, (iii) political leadership, and (iv) symbolic leadership. The results of the study suggest high levels of transformational leadership among Jordanian school counselors as perceived by both teachers and principals. Principals assessed the levels more highly than teachers, with a significant difference evident. The results also showed a significant difference based on geographic area of the participants, even though those from all areas rated counselor leadership quite highly.  相似文献   
47.
This paper investigates how differences in resource endowments of universities shape variation in their response to regulatory pressures. Earlier research on higher education institutions tends to conceive regulatory rules as the primary basis of action and does not attend to differences in the salient characteristics of universities. This paper is based on the premise that satisfying regulatory demands requires resources that are compatible with these demands, making resource endowments of universities a potentially significant source of variation in their responses to regulatory pressures. We empirically investigate the relationship between human resource characteristics of economics, management, and political science departments of Turkish universities and how these departments responded to the intensifying regulatory pressure to publish more in indexed journals. Findings reveal that departments which predominantly employ researchers trained in North American universities published significantly more in indexed journals between 2000 and 2008. These departments are better endowed with respect to resources that are necessary for publishing in indexed journals, most importantly knowledge of theory, methodology, and style sought by indexed journals. The paper shows that attending to differences in resource endowments of universities as well as regulatory goals and tools facilitates understanding of how regulation-driven processes unfold.  相似文献   
48.
This article has two interrelated purposes. The first is to explain how various forms of bias, if introduced during any stage of a meta-analysis, can provide the consumer with a misimpression of the state of a research literature. Five of the most important bias-producing aspects of a meta-analysis are presented and discussed. Second, armed with this information, we examine 15 meta-analyses of the literatures of distance education (DE), online learning (OL), and blended learning (BL), conducted from 2000 to 2014, with the intention of assessing potential sources of bias in each. All of these meta-analyses address the question: “How do students taking courses through DE, OL, and BL compare to students engaged in pure classroom instruction in terms of learning achievement outcomes?” We argue that questions asked by primary researchers must change to reflect issues that will drive improvements in designing and implementing DE, OL, and BL courses.  相似文献   
49.
Hydrogen breath tests are widely used to explore pathophysiology of functional gastrointestinal (GI) disorders. Small intestinal bacterial overgrowth (SIBO) and carbohydrate malabsorption are disorders detected by these tests that have been proposed to be of great importance for symptoms of GI diseases. Glucose hydrogen breath test is more acceptable for diagnosis of SIBO whereas lactose and fructose hydrogen breath tests are used for detection of lactose and fructose maldigestion respectively. Lactulose hydrogen breath test is also used widely to measure the orocecal transit time for GI motility. These methods are noninvasive and inexpensive. Many patients with functional gut disorders are unaware of the relationship between diet and GI symptoms they present. In particular, patients with chronic symptoms may regard their condition as normal and may not be aware that their symptoms can be effectively managed following a proper diagnosis. Patients with symptoms of abdominal pain, bloating, flatulence and altered bowel movements (diarrhea and constipation), or with a medical diagnosis of irritable bowel syndrome or celiac disease, may have undiagnosed carbohydrate malabsorption or SIBO. Hydrogen breath tests are specific and sensitive diagnostic tests that can be used to either confirm or eliminate the possibility of carbohydrate malabsorption or SIBO in such patients. Breath tests, though valuable tools, are underutilized in evaluating dyspepsia and functional bloating and diarrhea as well as suspected malabsorption. However, because of their simplicity, reproducibility and safety of procedure they are now being substituted to more uncomfortable and expensive techniques that were traditionally used in gastroenterology.  相似文献   
50.
Traditionally, education in various forms has been used as a tool to change values and behavior in children regarding the environment. This study reports findings from the We Love Reading Program that utilizes the reading of Social Stories in various communities in Jordan to address the environmental problems of Jordan. Results indicated the effectiveness of this informal educational intervention showing a significant increase in children's knowledge about environmental issues and a positive change in behavior related to electricity and water consumption and littering, as reported by parents. The authors provide several recommendations on how Social Stories and appropriate curriculum can be used in schools and community to create awareness in students regarding environmental issues.  相似文献   
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