景观生态学理论在生态旅游线路设计中的应用——以福州旗山国家森林公园为例

现代地理学与生态学结合下产生的景观生态学,正在不断地发现和拓展其应用领域。文章以福州旗山国家森林公园为例,阐明景观生态学是生态旅游线路设计的主要理论之一,分析在景观生态学理论指导下的旅游线路设计过程,肯定对旅游地进行景观生态规划和设计具有实践上的可行性,能满足景区旅游生态平衡与人类协调的发展要求。     

The relationship between instructional and assessment accommodations in an inclusive state accountability system

We investigated the kinds of instructional and assessment accommodations students with disabilities receive, and the extent to which instructional accommodations match assessment accommodations. Most students who had IEPs in specific content areas received instructional accommodations in those areas, and there were no differences by disability type. We provide data on the specific types of accommodations used. Overall, students' assessment accommodations matched their instructional accommodations, though many students received testing accommodations that had not been received in instruction. Implications are discussed for IEP teams who make decisions about instructional and assessment accommodations.     

An Examination of Change in Teacher Self-Efficacy Beliefs in Science Education Based on the Duration of Inservice Activities

Journal of Science Teacher Education -     

高等院校电子技术专业毕业设计指导

本文针对毕业设计题目的选择,教师在指导毕业设计过程中的主导作用,毕业实习环节的有效利用以及如何培养学生综合能力提出几点看法.     

Science literacy and academic identity formulation

The purpose of this article is to report findings from an ethnographic study that focused on the co‐development of science literacy and academic identity formulation within a third‐grade classroom. Our theoretical framework draws from sociocultural theory and studies of scientific literacy. Through analysis of classroom discourse, we identified opportunities afforded students to learn specific scientific knowledge and practices during a series of science investigations. The results of this study suggest that the collective practice of the scientific conversations and activities that took place within this classroom enabled students to engage in the construction of communal science knowledge through multiple textual forms. By examining the ways in which students contributed to the construction of scientific understanding, and then by examining their performances within and across events, we present evidence of the co‐development of students' academic identities and scientific literacy. Students' communication and participation in science during the investigations enabled them to learn the structure of the discipline by identifying and engaging in scientific activities. The intersection of academic identities with the development of scientific literacy provides a basis for considering specific ways to achieve scientific literacy for all students. © 2004 Wiley Periodicals, Inc. J Res Sci Teach 41: 1111–1144, 2004     

新兴技术的风险识别与三维分析——基于动态评估过程的视角

本文以新兴技术动态评估方法为基础,讨论了其过程中每一步骤的风险组成。提出可以将这些风险沿着技术环境、技术自身、企业组织三个方向进行归纳、分层,并建立了新兴技术风险评估的三维分析概念模型。特别指出在新兴技术评估过程中,管理者对那些更远期、深层、抽象、隐含层面的风险的认知和理解显得尤为重要。     

风险投资中的代理问题、风险分担与制度安排

信息不对称使得风险投资面临严重的代理问题，代理问题与风险企业（项目）的高不确定性又会导致风险投资的高失败率。恰当的制度安排能够降低代理成本和风险：一方面，风险投资家严格筛选高层管理团队，对他们采用强约束和适当的激励，并积极参与风险企业的管理，提供增值服务；另一方面，风险企业普遍采用全员持股这种组织激励方式。风险投资机制将监督、激励与风险分担有机地结合在一起，从而大大缓解了风险投资中的代理问题。论文还对我国风险投资业的发展提出一些相关建议。     

让学生在欢声笑语中识记词汇

本文通过总结《大学英语》精读课程教学当中讲解词汇的各种生动有趣的方式方法，试图探讨英语词汇更有效的教学方法，提高学生英语词汇的学习兴趣和学习效果。     

Serum super oxide dismutase (SOD), malondialdehyde (MDA) levels in urinary disorders

Evaluation of serum SOD and MDA level was done in 21 first episode renal stone formers, 9 recurrent stone formers, 20 patients with obstructive uropathy other than urolithiasis and 12 patients with urinary infection. Twenty-two healthy volunteers were taken as controls. The level of SOD in respective groups was 2.12±0.84, 2.78±0.85, 1.42±0.31, 1.98±0.70 and 2.32±0.62 units/ml and of MDA was 2.61±1.07, 2.69±1.15, 1.65±0.33, 1.33±0.34 and 1.55±0.48 n mol/ml respectively. The results indicate increased peroxidative stressin nephrolithiasis only. Since SOD level was normal in all groups, this increased peroxidative stress in nephrolithiasis should be due to factors other than this one.     

A case of IgA multiple myeloma: Nutritional perspective in diagnostic testing

A 64-year-old security guard and longstanding known hypertensive presented with hypertensive heart disease (HHD), weight loss, an enlarged prostate, and a spontaneously fractured rib. Malignancy of the prostate with possible metastases to the ribs was strongly suspected. Biochemical profiling revealed a paraprotein. Other biochemical and hematological correlates that were on hand before serum protein electrophoresis were rather atypical. Paraprotein studies by immunofixation revealed IgA myelomatosis. Unlike previous reports from Caucasians there was normocalcaemia, normal protein level, microcytic hypochromia, low MCHC, cholesterol level at the lower limit of the reference range and normal urea level (in the face of markedly raised creatinine level). Nutritional modulation of the classical laboratory features of this disease may account for the fairly atypical laboratory picture. The need to appreciate the influence of nutritional status on the laboratory (especially biochemical) features of a disease and thus interpretation of diagnostic tests appears of exceptional current importance, given the widening gap in socioeconomic status and the level of poverty between the resource poor and developed countries from which the classical, clinical and laboratory features of most diseases were first described. This case report reminds of the need not only to recognize theoretically the impact of nutritional status on the laboratory characteristics of a disease but of the practical application of the nutritional perspective in the interpretation of diagnostic investigations, especially in nutritionally disadvantaged communities.