川西北草地牛皮蝇蛆病的研究

对川西北草地牛皮蝇蛆病的流行情况、季节动态及防治技术的研究表明：（１）临床检查牦牛１１４９头、黄牛５９９头，皮蝇蛆寄生率分别为８４．２５％和７０．２８％，寄生强度为１８．３２个和２．１７个；剖杀检查牦牛１１４头，皮蝇蛆寄生率为１００％，寄生强度为７１．６６个．（２）川西北草地皮蝇的种类，经形态学和生化特性鉴定定为牛皮蝇Ｈ．ｂｏｖｉｓ、纹皮蝇Ｈ．ｌｉｎｅａｔｕｍ和中华皮蝇Ｈ．ｓｉｎｒｎｓｅ等三种．（３）弄清了皮蝇各期幼虫在牛体内的寄生季节、寄生部位、移行动态、三期幼虫寄生方位、入土化蛹羽化规律、成虫活动规律等．（４）害获灭（Ｉｖｏｍｅｃ）是防治牛皮蝇蛆病的首选药物，具有效果好、广谱、剂量小、安全、使用方便、易于推广等优点，防治后可获显著经济效益和明显社会效益     

Immunomodulatory properties of cystatins

Cystatins are natural tight-binding reversible inhibitors of cysteine proteases. Because these cysteine proteases exist in all living organisms and because they are involved in various biological and pathological processes, the control of these protease functions by cystatins is of cardinal importance. Cystatins are found in mammals but cystatin-like molecules are also present in mammals and parasites. In the immune system, cystatins modulate cathepsin activities and antigen presentation. They also induce tumor necrosis factor α and interleukin 10 synthesis, and they stimulate nitric oxide production by interferon γ-activated murine macrophages. In turn, nitric oxide has inhibitory activity on cysteine proteases, especially those from parasitic protozoa. Cystatins isolated from parasitic nematodes also have immunomodulatory activities that are distinguishable from those induced by lipopolysacharide-like molecules from endosymbiotic bacteria. On the whole, cystatins and cystatin-like molecules belong to a new category of immunomodulatory molecules. Doubtless increasing data will improve our knowledge of this property, leading to practical applications in immunotherapy. Received 11 April 2002; accepted 18 April 2002 RID="*" ID="*"Corresponding author.     

对科技创新促进产业创新的哲学探析

科技创新与产业创新二者皆具生态进化特性，科技创新促进产业创新在区域内具有其内在的一些表征：共生进化的统一性、投资的高风险性、区域产业发展的非平衡性等。科技创新在产业创新上的价值体现不仅是其本身的表现，还负荷着科学精神、科技创新文化等内在的价值作用。科技创新促进产业创新，产业创新为科技创新增活力。不断优化区域科技创新的环境与系统。提高以自主创新的核心创新能力，促进与产业创新的共生进化与优化。     

河池学院校园寄生植物的危害及其防治

通过对河池学院校园寄生植物的深入调查，共发现了广寄生（Taxillus chinensis（DC．）Danser）等六种常见的寄生植物，归纳了寄生植物分布的七个主要特点，并说明其危害。用数理统计方法对调查数据进行整理分析，得出寄生植物侵害率较高的园林植物种类，提出生态校园建设及寄生植物防治的六点措施。     

大规模集成电路多层布线结构对信号延时的影响

通过集成电路各器件间的布线传递信号的过程，是将信号电荷向布线间形成的寄生电容充放电的过程。本文研究了集成电路多层连线的寄生电容模型、互连线RC树模型的延时估算等电路模拟技术，同时提出了今后该领域的研究方向。     

广西白蜡生产失败原因剖析

广西白蜡生产失败的主要原因是，首先，年降雨量超过１５５２ｍｍ，间接或直接地引起大批白蜡虫死亡；其次，对白蜡虫具有毁灭性的白蜡虫寄生蜂不采取任何防治措施，致使种虫寄生率高达９２．９％。因此，白蜡生产遭受失败。广西气候多种多样，年降雨量、在１５５２ｍｍ以下有２２个县，发展白蜡生产是有潜力的，可逐步恢复和发展白蜡生产。     

Ka波段混合集成鳍线开关

鳍线具有低耗、易加工、易与各种传输线相连接等特点,适于制作各种有源电路和集成化子系统。鳍线PIN开关通常使用单侧鳍线,它易于焊装梁式引线管,容易施加偏置。在缺少梁式引线管的条件下,也可使用台面PIN管,采取适当措施,可获得较满意的结果。     

Queen success is correlated with worker-brood genetic relatedness in a primitively eusocial wasp (Ropalidia marginata)

Ropalidia marginata is a primitively eusocial polistine wasp in which, although there is only one queen at any given time, frequent queen replacements lead to a system of serial polygyny. One of the most striking features of this system, is the enormous variation in the success of different queens. Measuring queen success as queen tenure, total number of offspring produced, number of offspring produced per day of tenure, and proportion of eggs laid that develop into adults, we show here that each measure of queen success is correlated with worker-brood genetic relatedness and not correlated with worker: brood ratio or the age of the queen at takeover. We interpret these results as meaning that queens are better able to obtain the cooperation of workers when worker-brood genetic relatedness is high.     

黄瓜山寄生于昆虫内微孢子虫的分布调查

微孢予虫可以侵染大多数的昆虫,包括经济昆虫和农业害虫,并对其造成一定程度甚至是毁灭性的影响．了解微孢子虫在本地区的分布对于农作物害虫的防治和经济昆虫的防疫具有重要意义．本文介绍了黄瓜山地区微孢子虫在昆虫中的分布调查情况,对害虫防治和经济昆虫微孢子虫病的防疫提供了一定的参考和依据．     

寄生参数对半导体激光器直接调制特性的影响

通过理论推导和模拟计算,给出激光器调制带宽和其它参数之间的关系。分析了不同张驰振荡频率、衰减系数和寄生参数下的调制特性。结果表明当寄生参数过大时,激光器的3 dB调制带宽主要受寄生参数限制,因而只能在解决了寄生参数限制的前提下,通过对器件的有源区和结构进行优化才能获取高的3 dB调制带宽。对于制作的聚酰亚胺埋沟掩埋激光器和AlGaInAs脊型波导激光器其最大3 dB调制带宽分别为5 GHz和8.5 GHz,定性地解释了两类半导体激光器调制特性的测试结果。