关于人力资源会计若干问题的探讨

介绍了人力资源会计的概念,从人力资源成本会计和人力资源管理会计两个方面对人力资源会计的研究重点进行了详细的分析.     

老龄化背景下城轨换乘站客流组织仿真分析

针对人口老龄化背景下的城轨换乘站客流组织问题,从影响因素分析出发,量化老年乘客生理特征对乘客行动力影响的外在表现,并运用社会力模型描述换乘站内行人运动。借助AnyLogic仿真软件,以重庆市某换乘站为实验对象构建地铁换乘站仿真模型。通过设计多场景仿真实验,结果发现老年乘客比例对站内客流速度、进站时间、换乘时间都有明显影响,尤其是在站内客流瓶颈处和高差变化处的影响更为明显。最后,对适老背景下城轨车站设计和运营提出针对性建议。     

Genomic organization of EDSV strain AA-2

The genomic organization of egg drop syndrome virus strain AA-2 isolated in China is reported here. The genome was found to be 32 838 bp in length, approximately 2 kb shorter than those of the human subgenus C adenoviruses. Analysis of open reading frames indicated that the genes for major viral structural proteins (55 K, Penton base, pⅦ, pⅩ, pⅥ, Hexon, 100 K, pⅧ and Fiber), as well as EP, DNA polymerase and ⅣaⅡ are present in the expected locations in the genome. EDSV possesses no identifiable E3 and E4 regions and most proteins encoded by E3 and E4 regions of other adenoviruses genome were not presented in EDSV.     

用边界层理论计算平底闸孔出流的流量

应用边界层理论,对闸孔出流的水力计算方法进行了分析,得出了用边界层厚度表示的流量计算的表达式。该计算式物理意义明确、计算简单,经验证与试验结果一致。     

DBMS软件产品数据库设计的实用策略

本文以“通用帐务处理软件数据库设计策略”为背景,对DBMS(Data Base Management System)软件产品数据库设计的方法和策略进行探讨。     

Conformational changes of the amyloid beta-peptide (1-40) adsorbed on solid surfaces

The conformational change of the 39-43 residues of the amyloid beta-peptide (Abeta) toward a beta-sheet enriched state promotes self-aggregation of the peptide molecules and constitutes the major peptide component of the amyloid plaques in Alzheimer patients. The crucial question behind the self-aggregation of Abeta is related to the different pathways the peptide may take after cleavage from the amyloid precursor proteins at cellular membranes. This work is aiming at determining the conformation of the Abeta (1-40) adsorbed on hydrophobic Teflon and hydrophilic silica particles, as model sorbent surfaces mimicking the apolar transmembrane environment and the polar, charged membrane surface, respectively. The mechanism by which the Abeta interacts with solid surfaces strongly depends on the hydrophobic/hydrophilic character of the particles. Hydrophobic and electrostatic interactions contribute differently in each case, causing a completely different conformational change of the adsorbed molecules on the two surfaces. When hydrophobic interactions between the peptide and the sorbent prevail, the adsorbed Abeta (1-40) mainly adopts an alpha-helix conformation due to H-bonding in the apolar part of the peptide that is oriented towards the surface. On the other hand, when the peptide adsorbs by electrostatic interactions beta-sheet formation is promoted due to intermolecular association between the apolar parts of the adsorbed peptide. Irrespective of the characteristics of the solid sorbent, crowding the surface results in intermolecular association between adsorbed molecules leading to a strong aggregation tendency of the Abeta (1-40). [Diagram: see text] CD spectra of Abeta (1-40) at pH 7: A) in solution ([Abeta]=0.2 mg.ml(-1)) freshly prepared (line) and after overnight incubation (symbols);B) on Teflon (Gamma=0.5 mg.m(-2)).     

Self-organized glycoclusters along DNA: effect of the spatial arrangement of galactoside residues on cooperative lectin recognition

We describe herein the relationship between the spatial arrangement of self-organized galactose clusters and lectin recognition. beta-Galactose-modified deoxyuridine phosphoramidite was synthesized and applied to solid-phase synthesis to provide 18-, 20-, and 22-mers of site-specifically galactosylated oligodeoxynucleotides (Gal-ODNs). These Gal-ODNs were self-organized through hybridization with the corresponding 18-, 20-, and 22-mers of half-sliding complementary ODNs (hsc-ODNs) to give periodic galactoside clusters. The self-organization of ODNs was confirmed by size exclusion chromatography and gel electrophoresis. The binding of the Gal-clusters to the FITC-labeled RCA(120) lectin was analyzed by monitoring the change in fluorescence intensity. The assembly of 20-mer Gal-ODN with the 20-mer hsc-ODN was strongly and cooperatively recognized by the lectin. The 18-mer assembly was bound more weakly and less cooperatively, and the 22-mer assembly was minimally bound to the lectin. RCA(120) lectin recognized not only the density of galactoside residues, but also the spatial arrangement. The size of the Gal cluster was estimated from the association constant of Gal-ODN with hsc-ODN. The relationship between lectin-recognition and Gal-cluster size is also discussed.     

Dendritic liquid-crystalline fullerene-ferrocene dyads

First- and second-generation ferrocene-based dendrimers, fullerene and a second-generation liquid-crystalline poly(arylester) dendrimer carrying four cyanobiphenyl units were assembled to elaborate polyfunctional materials displaying mesomorphic and electronic properties. The targeted compounds gave rise to enantiotropic smectic A phases and organized into bilayer structures within the smectic layers. Cyclic voltammetry investigations revealed oxidation and reduction processes in agreement with the presence of both ferrocene and fullerene units. Finally, strong quenching of the fluorescence was obtained for the fullerene-ferrocene dyads suggesting efficient elecron transfer from the ferrocene-based dendrimer to fullerene.     

两流方式下薄板坯连铸连轧生产组织方法及仿真

针对薄板坯连铸连轧两流供料方式下生产组织中出现的新问题,提出两种生产计划组织方式,建立模型进行仿真分析.根据仿真分析结果对薄板坯连铸连轧的生产组织方式选择提出建议.     

人力资本理论对公司财务及其理论的影响

随着人力资本逐渐成为企业经济的核心要素,人力资本对公司财务及其理论的影响越来越明显.主要讨论了人力资本对财务主体、财务目标、财务内容及方法、公司融资及资本结构、公司治理以及公司价值评估和剩余分配6个方面的影响.