景观生态学基本理论及在绿洲研究中的应用

景观生态学是一门新兴的、正在深入开拓和迅速发展的学科领域。本文对其基本理论如一般原理．斑──廊──基模式，景观异质性，景观格局与生态过程，等级理论进行概括和总结，针对干旱区资源，环境和经济发展面临的主要问题，简要提出景观生态学在干旱区、绿洲研究中的应用领域及前景。     

Ectoparasite infestation and sex-biased local recruitment of hosts.

Dispersal patterns of organisms are a fundamental aspect of their ecology, modifying the genetic and social structure of local populations. Parasites reduce the reproductive success and survival of hosts and thereby exert selection pressure on host life-history traits, possibly affecting host dispersal. Here we test experimentally whether infestation by hen fleas, Ceratophyllus gallinae, affects sex-related recruitment of great tit, Parus major, fledglings. Using sex-specific DNA markers, we show that flea infestation led to a higher proportion of male fledglings recruiting in the local population in one year. In infested broods, the proportion of male recruits increased with brood size over a three year period, whereas the proportion of male recruits from uninfested broods decreased with brood size. Natal dispersal distances of recruits from infested nests were shorter than those from uninfested nests. To our knowledge, this study provides the first evidence for parasite-mediated host natal dispersal and local recruitment in relation to sex. Current theory needs to consider parasites as potentially important factors shaping life-history traits associated with host dispersal.     

水玻璃中的二氧化硅分光光度法测定

研究了乙醇作为稳定剂对硅钼黄及硅钼蓝络合物生成的稳定性影响，以及温度、酸度等其它适宜条件，建立了水玻璃中二氧化硅含量工作曲线．     

数字电路逻辑模拟中时间映射模型的实现

本文给出了一种利用链表方式实现时间映射算法的方法。     

Specific in vivo binding of d-LSD in rat brain

A reproducible in vivo d-LSD binding method in rat brain is described, with high affinity (Kd of 5 pmoles/g wet wt), stereospecificity (d- vs. 1-LSD) and regional selectivity. It may be a useful adjunct to in vitro methods for measuring changes in turnover at the synaptic level related to the intact receptor.     

面向21世纪的高师化工课程建设与改革

结合教学实践，提出了在面向２１世纪高师化工课程建设与改革中，教学内容与课程安排的改革和教学结构与成绩考核的改革的具体内容及方法     

外贸英文函电中“时间”的特点与外贸实务

通过对外贸英文函电当中某些介词副词作用的研究，论述了这些词在语法及实务意义上的不同及这些词的不同运用所产生的重要意义．     

热轧钢材显微组织-力学性能预报和控制技术

概述了热轧产品显微组织演变的计算机模型以及显微组织与力学性能之间的关系 .简要阐述了组织 性能预报和控制技术的发展历程和发展趋势 ,讨论了组织 性能预报和控制技术在生产上的应用     

Improved auditory spatial tuning in blind humans.

Despite reports of improved auditory discrimination capabilities in blind humans and visually deprived animals, there is no general agreement as to the nature or pervasiveness of such compensatory sensory enhancements. Neuroimaging studies have pointed out differences in cerebral organization between blind and sighted humans, but the relationship between these altered cortical activation patterns and auditory sensory acuity remains unclear. Here we compare behavioural and electrophysiological indices of spatial tuning within central and peripheral auditory space in congenitally blind and normally sighted but blindfolded adults to test the hypothesis (raised by earlier studies of the effects of auditory deprivation on visual processing) that the effects of visual deprivation might be more pronounced for processing peripheral sounds. We find that blind participants displayed localization abilities that were superior to those of sighted controls, but only when attending to sounds in peripheral auditory space. Electrophysiological recordings obtained at the same time revealed sharper tuning of early spatial attention mechanisms in the blind subjects. Differences in the scalp distribution of brain electrical activity between the two groups suggest a compensatory reorganization of brain areas in the blind that may contribute to the improved spatial resolution for peripheral sound sources.