低碳高硫易切钢中MnS夹杂物形貌、分布的分析

低碳高硫易切钢中MnS夹杂的形状和分布，对易切钢的机械性能有很大影响，用实验方法分析MnS夹杂物的形状和分布，从而了解和掌握其对易切钢性能的影响，对机构加工的工艺和方法具有实际的参考意义。     

TL生根剂促进4种观赏植物插条生根

本文报道了我们筛选的ＴＬ生根剂对含笑、绒柏、菊花和毛叶杜鹃４种观赏植物插条生根的影响．结果表明：ＴＬ生根剂能明显提高插条的生根率和每插条根数，且根长，分枝多，生根效果显著好于ＩＢＡ．     

食品质量感官品评数据的合理处理

本文通过食品质量感官品评实例.介绍采用Crubbs法处理数据.以达到使用评分法的准确性.     

A FAST PROCEDURE OF VARIABLE SELECTION IN LINEAR REGRESSION MODEL

In many situations,we are interested in selection of important variables whichare adequate for prediction under a linear regression model.In this paper,a fast selectionprocedure is proposed and is proved to be strongly consistent.Also,the convergence rate ofmisjudgement probability is given.     

Selected decrease of haemocytes of the freshwater snailPlanorbarius corneus (L.) (Gastropoda,Pulmonata) after bacteria injection

Summary The decrease of haemolymph phagocytic cells (SH) inPlanorbarius corneus after bacterial injection seems to be mediated by humoral factor(s) released into the haemolymph. SH show different adhesiveness in vitro in the presence of bacterial metabolic products.     

反射起偏实验的改进

随着科学技术的发展,许多传统的物理实验装置需要进行更新,但许多高校不能重新购置全新的设备,故需要自主的对传统的实验设备进行改进.在原有反射起偏实验装置的基础上,加装转动平台及升降平台,通过此项改进,有利于实验操作的进行和实验现象的观察。     

Scavenger receptor family proteins: roles for atherosclerosis, host defence and disorders of the central nervous system

In this review, we summarize the structure and function of the scavenger receptor family of proteins including class A (type I and II macrophage scavenger receptors, MARCO), class B (CD36, scavenger receptor class BI), mucinlike (CD68/macrosialin, dSR-CI) and endothelial (LOX-1) receptors. Two motifs have been identified as ligand-binding domains a charged collagen structure of type I and II receptors, and an immunodominant domain of CD36. These structures can recognize a wide range of negatively charged macromolecules, including oxidized low-density lipoproteins, damaged or apoptotic cells, and pathogenic microorganisms. After binding, these ligands can be either internalized by endocytosis or phagocytosis, or remain at the cell surface and mediate adhesion or lipid transfer through caveolae. Under physiological conditions, scavenger receptors serve to scavenge or clean up cellular debris and other related materials, and they play a role in host defence. In pathological states, they mediate the recruitment, activation and transformation of macrophages and other cells which may be related to the development of atherosclerosis and to disorders caused by the accumulation of denatured materials, such as Alzheimer's disease. Received 17 September 1997; received after revision 16 March 1998; accepted 17 March 1998     

谈物质的状态

从分子热运动的微观角度阐述了物质的5种存在状态,提出了关于物质的状态教学改革的建议。     

建立“疾病模型与实验病理学”特色课程,培养创新型药学人才

在吉林大学药学院开设了具有特色的"疾病模型与实验病理学"新课程,阐述了本课程开设的必要性、内容、特色及实施效果等。教学实践证明,这门课程切合药学专业的培养目标,对提高学生的创新能力及综合素质,培养实用型药学专业人才起到了积极作用。     

White-spot disease of Chinese soft-shelled turtles （Trionyx sinens） caused by Paecilomyces iilacinus

Chinese soft-shelled turtles （Trionyx sinens） in culture farms using an artificial warming system in Zhejiang, China, often show typical signs of white-spot disease such as white spots on their bodies, skin lesions, anorexia and eventually death. The sick turtles were mostly 5-80 g in weight. A suspected fungal pathogen was isolated from the sick turtles and verified as Paecilomyces lilacinus by sequence analysis of the internal transcribed spacer （ITS） of its ribosomal DNA （rDNA）. Detailed morphological examinations were also conducted to confirm the white-spot disease.