基于Nios Ⅱ的JPEG图像显示系统研究

随着多媒体通信技术的发展，人们不再满足单一 文字或声音的传递，从普通电话到视频电话，从SMS (short mess呼ng serviee)到EMS(enhaneed message serviee)再到MMS(multimedia mess铭ing serviee)，多 媒体技术逐渐进人千家万户。因此，研究如何高效地 处理多媒体信源，让其更     

Ⅱ型单线图体育动作神态的表现技巧

体育动作简图，是《体育绘图》课程“三大图”主要内容之一，是记录运动人体形态最简便的方法，运用Ⅱ型单线画的人体动作简图，结构简单，线条清晰，形体美观而生动、形象、逼真，不仅速度快，清楚明了，帮助记忆，经久不忘，而且还能巧妙的表现出运动人体特有的神韵，同样具有艺术的魅力。     

羰基钌(Ⅱ)卟啉的电化学性质研

研究了八乙基卟啉钌(II)及四种带有不同取代基的四苯基卟啉羰基合钌(II)的电化学行为,考察了取代基对羰基钌卟啉的电化学性质的影响,测定了其电子转移反应速率常数。     

信息化时代下的图书馆期刊订购和管理

图书馆期刊具有连续性、动态性以及数量多等特点,这给图书馆期刊订购和管理带来一定难度。在信息化时代下,利用Excel和ILAS II系统中的连续出版物子系统进行期刊订购和管理,可以提高工作效率,减少重订、漏订等现象发生。     

Substituting SAT II: Subject Tests for SAT I: Reasoning Tests: Impact on Admitted Class Composition and Quality

Using data from a sample of 10 colleges at which most students had taken both SAT I: Reasoning tests and SAT II: Subject tests, we simulated the effects of making selection decisions using SAT II scores in place of SAT I scores. Specifically, we treated the students in each college as forming the applicant pool for a more select college, and then selected the top two thirds (and top one third) of the students using high school grade point average combined with either SAT I scores or the average of SAT II scores. Success rates, in terms of first-year grade point averages, were virtually identical for students selected by the different models. The percentage of African American, Asian American, and White students selected varied only slightly across models. Appreciably more Mexican American and Other Latino students were selected with the model that used SAT II scores in place of SAT I scores because these students submitted subject test scores for the Spanish test on which they had high scores.     

战后初期苏联对华外交策略原因浅析

战后初期 ,苏联对华外交特征主要是承认国民党政府的合法性 ,支持蒋介石统一中国 ;另一方面 ,在东北地区则又对国共双方采取矛盾的“等距离”政策。苏联实行这一对华外交方针的原因是多方面的 ,主要受到当时中国国内复杂的形势 ,斯大林对中国国共双方斗争发展前途的错误估计 ,苏联战略重点选择的需要及斯大林对毛泽东与中国共产党的片面认识等诸多因素的影响     

Expression of TGF-β1 and TGF-β R II in colorectal adenomas of varying stages

To study the function of transforming growth factor β₁ (TGF-β₁) and transforming growth factor-β type II receptor (TGF-βR II) in varying stages of colorectal adenoma during neoplastic transformation, fiftyfive cases of resected colorectal adenomas were examined immunohistochemically. Our results showed that the expression of TGF-β₁ ranged from high to low, with the progression of low-grade to high-grade dysplasia of adenomas to carcinoma. And there was significantly different expression of TGF-β₁ between moderate and high dysplasia adenomas (P<0.05), but no significantly different expression of TGF-β R II was found among varying stages of adenomas. Our results suggested that the quantities of TGF-β₁ secreted by adenoma cells decrease dramatically in moderate to severe dysplasia colorectal adenomas. It is the decreased secretion of TGF-β₁, rather than the mutated TGF-βR II that may play an important role in transforming colorectal adenomas to adenocarcinomas.     

铜(Ⅱ)-头孢唑啉钠络合物吸附波的研究与应用

在pHl0的NH3-NH4C1缓冲溶液中，Cu(Ⅱ)-头孢唑啉钠络合物在单扫描示波极谱仪上产生一灵敏的还原峰，其一次导数峰电位为-0．30V(vs．SCE)，峰电流与铜浓度在0．005—0．3mg／L范围内呈线性关系，检出限为0．0025mg／L。将该波用于人发及硫酸镍中铜含量的测定，并就极谱波的性质进行了探讨。     

Rose Blanche in Translation

This comparative study focuses on three editions of Rose Blanche, Roberto Innocenti's picturebook portrayal of a young girl who discovers a Nazi concentration camp on the outskirts of her German city. The original text, written in French by Christophe Gallaz to accompany Innocenti's illustrations, was translated into English and published in the United States; this text is compared with the British text, rewritten by Ian McEwan, and the German text, translated by Abraham Teuter. An examination of differences in the three texts demonstrates some of the ways in which cultural, aesthetic, national, ideological, pedagogical, and economic issues influence the translation of a children's book.     

Risk factors for coronary heart disease in type II diabetes mellitus

Cardiovascular complications are the major cause of morbidity and mortality in diabetic patients. An attempt has been made to evaluate the risk factors for coronary heart disease in type II diabetics. In the present study the levels of fasting and postprandial plasma glucose, total cholesterol, low density lipoproteins, triglycerides were high and the levels of high density lipoproteins were low in the type II diabetics compared to controls. The markers of free radical induced injury i.e. malondialdehyde and nitrite/nitrate were high while total antioxidant status a marker for antioxidant protection against reactive oxygen species was low in diabetics compared to controls. The study therefore suggests the importance of assessing these markers of oxidative stress and antioxidant capacity along with the other routine investigations in diabetic patients for initiating antioxidant therapy in addition to primary and secondary preventive measures to mitigate the devastating consequences of diabetes leading to coronary heart disease.