Effect of vitamin E on protein bound carbhohydrate complexes in radiation treated oral squamous cell carcinoma patients

Serum glycoproteins were evaluated in oral squamous cell carcinoma patients treated with radiotherapy and also the effect of vitamin E was studied. Cell surface glycoconjugates are important parameters in the detection of malignancy. Thus, the objective of the present study is to evaluate the efficacy of vitamin E on glycoproteins in oral cavity cancer patients treated with radiotherapy. The study includes 26 age and sex matched normal healthy individuals and 26 patients with squamous cell carcinoma of oral cavity. These patients were divided into two groups, one for radiotherapy alone (at a dosage of 6000 cGy in five fractions per week for a period of six weeks) and the other for radiotherapy plus vitamin E supplementation (at a dosage of 400 IU / day of vitamin E) for the entire period of radiotherapy. Levels of hexose, hexosamine, fucose and sialic acid were increased in oral squamous cell carcinoma patients and a significant decrease was observed in radiation treated patients when compared to control. The levels of glycoconjugates were significantly decreased in radiation treated patients supplemented with vitamin E. This measurement may be useful in assessing disease progression and identifying patients resistant to therapy and a possible role of vitamin E on reduction in glycoconjugate levels of radiation treated oral squamous cell carcinoma patients.     

Concurrent object-discrimination learning in rats

Investigations employing primates have sometimes used tests of concurrent object-discrimination as indexes of multiproblem memory in comparative studies of neuropathological impairment. The present investigation was an attempt to employ a comparable test procedure with rats. Data from two experiments indicated that rats could indeed be trained on a concurrent object-discrimination task. Furthermore, results from the second experiment indicated that these performances and brightness discriminations shared the property of disruption by posterior decortication. Implications for the neuropsychology of learning and memory are discussed.     

The Reading–Spelling Connection: Developing and Evaluating a Beginning Spelling Intervention for Children at Risk of Reading Disability

Abstract In this article, we describe the development and evaluation of a beginning spelling intervention for young children at risk of reading disability. We first summarize the literature that supports beginning spelling as an ideal method for strategically integrating the beginning reading big ideas of phonemic awareness and alphabetic understanding. We then summarize the literature on effective instructional principles for students at risk of reading disability. Next, we describe how instructional design was applied to the development of an intervention for young children at risk of reading disability, then summarize the findings of an experimental study supporting the effectiveness of this intervention. Finally, we provide selected examples from the spelling intervention to illustrate the findings' translation into instructional practice.     

从“学生投入”析体育教学改革

从“学生投入”的角度，对体育教学中普遍存在的学生外显的积极行为和内隐的消极心理这一矛盾进行深入分析，认为体育教学应该重视学生积极情感的投入，减少遵守规范式和消极情感式的情感投入；重视学生积极性的认知投入，减少表面性的认知投入；重视学生积极的行为投入，减少消极的行为投入。     

对CBA主客场赛制主场优势的心理状态研究

通过对CBA主客场赛制运动员心理状态的研究表明，主场优势的现象明显存在，比赛地点的不同会引起运动员一些主要心理状态的变化；对影响主客场比赛结果的主要因素进行了分析。     

对青少年掷标枪技术训练的研究

掷标枪技术训练要从基础训练阶段(13～15岁)抓起。通过实验对照分析找出一个较为理想的符合该年龄段特点的掷标枪技术训练的计划安排和练习方法，以及该年龄段掌握技术的要求。     

对少儿艺术体操运动员舞蹈基础训练的探讨

对艺术体操运动员舞蹈基本功的早期训练，从训练的任务、特点、内容、教法建议等方面进行了研究与探讨。