大熊猫血液中微量元素初析

本文用原子吸收分光光度法测定了大熊猫全血、血清、血浆中 zn、Cu、Mn、Fe,Ca、Mg 等六种元素的平均含量和各元素含量的范围值,并对它们在全血、血清、血浆中的含量进行了比较。     

熊猫种群动力学的双区域模型

研究大熊猫的种群动力学，提出捕食者－食饵模型，在两个区域中的数学方程不同，得到大熊猫和竹子的两个稳定状态。     

CRP检测的临床意义

人类C-反应蛋白(CRP)是急性时相蛋白之一，实验室把CRP作为系统炎症疾病的指示指标，同时对于一些疾病的诊断、鉴别及预后推断都有重大意义．     

高阶Kub0公式在巨磁阻中的应用

利用子动力学理论将计算电导率的Kubo公式被推广成为一个包含高阶项的公式,并利用此公式,计算巨磁阻,显示了高阶影响的重要性.     

芜菁块根汁对果蝇发生量的影响

以野生型果蝇、白眼果蝇为实验动物 ,研究不同浓度芜菁块根汁 (以下简称块根汁 )在不同温度、不同空间下对其发生量的影响。实验共分 3个处理浓度、2个培养温度 (设空白对照组 ) ,重复 3次。结果表明 ,在培养管内 ,3个浓度块根汁均使 2个品系的果蝇在 2 0℃和 2 5℃温度下的发生量增加。在广口瓶内 :2 0℃温度下 3个浓度块根汁均使野生型果蝇的发生量下降 ,而白眼果蝇发生量的影响则为低浓度块根汁使其下降而中、高两浓度却使其增加 ;2 5℃温度下低、中两浓度块根汁使野生型果蝇发生量增加而高浓度却使其下降 ,而白眼果蝇发生量的影响则为低浓度块根汁使其增加而中、高两浓度却使其下降。说明不同浓度的芜菁块根汁对不同品系果蝇在不同温度、不同空间下的发生量的影响是不一样的     

Sexual/aggressive behavior of wild yak （Bos mutus Prejevalsky 1883） during the rut： influence of female choice

Wild yaks （Bos mutus） ranged across the Tibetan Plateau in large herds before being forced to remote areas of the plateau. Consequently, little has been published about their behavioral ecology. We present the first extensive study on wild yak behavior during the rut. We gathered data on activity budgets, aggressive/sexual behaviors, and the behavior of bulls inside and outside mixed groups during 11 days in 2010 and 9 days in 2011. Yaks ate less and were more social during the rut than during summer. Males ate less than females and socialized more during the rut. We observed yaks for 234.25 h and recorded 2,078 aggressive/sexual behaviors. Yak bulls inspected and tended cows showing off their profiles during lateral displays, the most common type of indirect aggression. Yak bulls inside mixed sex groups rested less and socialized more than bulls outside. Females initiated intense intrasexual competition and led at least 25 bulls on chases. Females then incited fight frenzies of numerous bulls from inside and outside the groups before copulations, and fights could be intense. We discuss female choice selecting for large size and fighting ability in males, the similarity of yak and bison （genus Bison） behavior, and conservation implications.     

攀西野生山茶形态特征及其观赏价值

攀西山茶属Camellia野生山茶植株类型多样,叶片浓绿具光泽,形态变异大,花大型、姿态优美,花瓣数量多,颜色丰富,色泽艳丽,具有很高的观赏价值,开发利用前景十分广阔。本文在对攀西地区野生山茶植物资源进行多年野外实地调查的基础上,对其形态特征和观赏价值进行了研究,并提出了开发利用建议。     

专家系统在基因芯片疾病诊断系统中的应用

基因芯片疾病诊断系统在医疗卫生、生物医学工程、生命科学研究等领域有着广阔的应用前景。对专家系统在基因芯片疾病诊断系统中的应用进行了初步的探讨,提出了一种用于基因芯片疾病诊断的基于产生式规则的专家系统框架,实现了利用基因芯片对特定疾病诊断的功能要求。     

Arbuscular mycorrhizal fungi infection in desert riparian forest and its environmental implications: A case study in the lower reach of Tarim River

This study was conducted on the desert riparian forest along the lower reach of the inland Tarim River, which is located in the arid region of Northwest China. Fifteen plant species in 10 families were collected from five monitoring sections, and examined for the infection ofarbuscular mycorrhizal fungi （AMF）. The impact of different soil factors on AMF infection rate and intensity was compared using the principal component analysis （PCA） method. The results indicate that 11 species are AM and only 4 are non-AM plants. The estimated capacity of AMF infection depends on families of plants and also the parameters （infection rate, infection intensity, fungal spore density） used. The density of fungal spores was relatively higher in Phragmites communis and Populus euphratica in Graminaceae and Salicaceae families, respectively. The infection rate was above 50% in all the AM plants, except Calligonumjunceum. The highest infection rate appeared in Alhagi sparsifolia （97%） and Glycyrrhizainflata （92%）. However, when compared by AMF infection intensity, Tamarix spp. became the top one, followed by Alhagi sparsifolia, and Glycyrrhiza inflata was in the middle range of all the species. The PCA has identified that soil total salt, moisture, organic matter, total nitrogen, total P, available K and pH were closely associated with the AMF infection.     

“褒贬所加，辄不一致”——论20世纪30年代的《野草》研究

20世纪30年代的《野草》研究,是发展和创新、“内外兼修”、肯定和否定并存的时期。赵艳如撰写了《野草》研究史上的第一篇专论。张翼人在鲁迅逝世前,写出了部分较有分量的《野草》研究论文。胡风的《〈过客〉小释》是解读《过客》的重要论文。陈紫秋的《谈鲁迅先生的诗》运用比较方式较广泛地涉猎了《野草》的诗篇。李素伯、柯灵等肯定《野草》的价值,而沈从文、王文奇等则完全否定《野草》的内容与艺术价值。