做强中国报刊业的思考

目前中国报业的发展卡在了三个瓶颈口上 :只生不死 ,盘活资源难 ;条块分割 ,做大规模难 ;法律滞后 ,自主经营难。解决上述问题首要的是必须建立现代企业制度 ,要建立现代企业制度 ,必须明确报刊的属性 ,从根本上打破行业分割、部门分割、媒介分割、地区分割、资源分割、市场分割的“吃不饱、饿不死”的局面 ,实施行业发展战略 ,打造航母 ,准备与“狼”一争     

木兰拳练习对女性高血压病患者红细胞变形性的影响——与红细胞膜脂质成分关系的初步研究

采用实验测试的方法，研究长期规律木兰拳练习对绝经期女性高血压病患者红细胞变形性的影响，以及红细胞变形性与红细胞膜脂质成分的可能关系。结果发现，在绝经期进行长期规律木兰拳练习，可以显著改善女性高血压病患者红细胞膜脂质成分，这种红细胞膜脂质成分的改善，包括膜胆固醇(CHO)与膜C／PL比值．与红细胞变形能力的改善有密切关系。     

吴语处州方言豪肴二韵的分合

通过实地调查，运用地理语言学的研究方法，平面揭示吴语处州方言豪、肴二韵的语音特点，并对其历史层次进行分析。处州方言豪、肴二韵的今读状态，是其自身演变和受外来方言影响的结果。     

On the vein-stiffening membrane structure of a dragonfly hind wing

Aiming at exploring the excellent structural performance of the vein-stiffening membrane structure of dragonfly hind wings, we analyzed two planar computational models and three 3D computational models with cambered corrugation based on the finite element method. It is shown that the vein size in different zones is proportional to the magnitude of the vein internal force when the wing structure is subjected to uniform out-of-plane transverse loading. The membrane contributes little to the flexural stiffness of the planar wing models, while exerting an immense impact upon the stiffness of the 3D wing models with cambered corrugation. If a lumped mass of 10% of the wing is fixed on the leading edge close to the wing tip, the wing fundamental fre- quency decreases by 10.7%-13.2%; if a lumped mass is connected to the wing via multiple springs, the wing fundamental frequency decreases by 16.0%-18.0%. Such decrease in fundamental frequency explains the special function of the wing pterostigma in alleviating the wing quivering effect. These particular features of dragonfly wings can be mimicked in the design of new-style reticulately stiffening thin-walled roof systems and flapping wings in novel intelligent aerial vehicles.     

我国城市土地管理体制改革的基本构想——“三权分离”模式的理论依据及土地收益分配

根据马克思对地租理论的阐述,结合我国现阶段城市土地管理中存在的问题,指出实行城市土地管理体制“三权分离”是解决我国现阶段城市土地管理体制不顺和收益归属不清的有效途径。     

Removal of aqueous phenol compound by vacuum membrane distillation

1.IntroductionPhenolisanimportantchemicalindustrymaterial,butitalsoaboundswithserioushazardtoenvironmentandthreatstohumanhealth.Rigidruleshavebeenmadeoutonthephenoldischargeconcentration.Researchesonthetreatmentofphenolwastewaterwerecarriedoutinvariouscountries[1-5].Membraneseparationmethodsincludingreverseosmosis,ultrafiltrationandpervaporationhaveattractedmuchattentionforphenolwastewatertreatment,withcelluloseacetate(CA)membraneemployedmostly[6].Membranedistillationisanewmembraneseparation…     

伴有牵引褶曲的断层断距研究

本文提出了伴有牵引褶曲的断层的整体地层断距、整体水平地层断距、整体铅垂地层断距、褶曲断距及最大褶曲断距的概念.这些概念的设立,对于复杂地质条件下的断层而言,是必不可少的非常重要的,有利于解决实际工作中的复杂地质问题,有利于在该领域内进行深层次的研究.     

从分科施教到分类育人——高中文理分科问题的纠结与转换

高中文理分科问题正引起社会的热切关注.本文从对高中文理分科的百年历史回顾和其与高考改革及课程改革的纵横经纬中,分析文理分科问题演变的过程和纠结的性质.通过国际比较,提出高中文理分科应该超越分不分科的争论,在理念上从分科施教转向分类育人;并应在终身教育的关照下,重新思考高中教育在人生发展中的意义,重新反思高等教育与高中教...     

Detection of plasmid-mediated IMP-1 metallo-β-lactamase and quinolone resistance determinants in an ertapenem-resistant Enterobacter cloacae isolate

Objective: To investigate the mechanism of carbapenem resistance and the occurrence of plasmid-mediated quinolone resistance determinants qnr and aac(6')-Ib-cr in a clinical isolate of Enterobacter cloacae. Methods: An ertapenem-resistant E. cloacae ZY106, which was isolated from liquor puris of a female gastric cancer patient in a Chinese hospital, was investigated. Antibiotic susceptibilities were determined by agar dilution method. Conjugation experiments, isoelectric focusing, polymerase chain reaction (PCR), and DNA sequence analyses of plasmid-mediated carbapenemases and quinolone resistance determinants were preformed to confirm the genotype. Outer membrane proteins (OMPs) were examined by urea-sodium dodecyl sulfate-polyacrylamide gel electrophoresis (Urea-SDS-PAGE). Results: Minimum inhibitory concentrations (MCs) of imipenem, mer-openem, and ertapenem for ZY106 were 2,4, and 16 ug/ml, respectively. Conjugation studies with Escherichia coli resulted in the transfer of significantly reduced carbapenem susceptibility. ZY106 produced IMP-1 metallo-p-lactamase and CTX-M-3 extended-spectrum P-lactamase, and E. coli transconjugant produced IMP-1. Plasmid-mediated quinolone resistance determinant qnrSI was detected in ZY106. Transfer of the qnrSI-encoding-plasmid into E. coli by conjugation resulted in intermediate resistance to ciprofloxacin in E. coli transconjugant. Urea-SDS-PAGE analysis of OMPs showed that ZY106 lacked an OMP of approximately 38 KDa. Conclusion: It is the first IMP-1-producing Enterobacteriaceae in China and the first report of a clinical isolate that harbors both blaIMP and qnrS genes as well. The blaIMP-1, blaCTX-M-3, and qnrSl are encoded at three different plasmids. IMP-1 combined with the loss of an OMP possibly resulted in ertapenem resistance and reduced imipenem and mero-penem susceptibility in E. cloacae.     

教育理论距离实践到底多远

教育理论与实践的关系问题是一个长期争论、悬而未决的问题。教育理论与实践脱离是实然状态,教育理论与实践相结合是应然追求。教育理论脱离实践,既有理论的原因也有实践的原因,既有客观原因也有主观原因。教育理论与实践的适当远离,一定程度上有利于理论和实践的发展。