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关键词： 跨境贸易   人民币结算   国际计价货币   国际结算货币  

摘要： 本文基于国际贸易中货币计价和结算职能的影响和决定因素,采用主成分分析方法来探索跨境贸易人民币结算的影响因素。研究结果表明,我国的对外贸易规模、人民币汇率的预期、金融市场特别是离岸市场的发展及政策的颁布有利于跨境贸易人民币结算额的提升;而国内通货膨胀水平和产业内贸易水平不利于跨境贸易人民币结算额的提升。据此笔者提出增强人民币汇率弹性、尝试对大宗商品进行人民币定价、促进人民币作为结算货币职能深化及加强离岸市场发展等措施来促进跨境贸易人民币结算的发展。

关键词： 自然辩证法   整体分析   检验结果   疾病诊断  

摘要： 检验医学在疾病预防、诊断、疗效和预后的判断、健康状况的评价等方面发挥着巨大的作用。进入21世纪以来,随着科学技术的飞速发展,检验诊断技术日新月异,全自动化、智能化、集成化、网络化仪器相继问世,为临床提供了更多的诊断依据,70%～85%的诊断和治疗决策都依据检验结果。对于检验结果在疾病诊断中的作用,需要一分为二地看。

关键词： 跨界活动   企业间知识利用   边缘知识  

摘要： 服务外包活动形成的企业间合作,是为了实现跨越组织边界的知识利用。但在合作初期因为发包企业和接包企业之间欠缺合作经验与共享知识,尚未建立有效的治理机制,会阻碍外包项目的顺利实施,进而影响建立面向长期的双边关系。基于企业间知识管理的视角,从服务外包活动中双边合作关系以及知识转移和利用的特殊性出发,文章分析认为,通过跨越组织边界和知识边界实施的跨界活动,接包企业项目管理者能承担起任务导向和情绪纽带的功能,"粘合"这种松散耦合的企业间关系,从而促进双方传递边缘知识、协调整合运营活动、识别问题和解决冲突,提高项目合作绩效。实证结果也支持了个体跨界者通过促进企业间知识利用效率对外包活动绩效产生正向影响的基本假设。

关键词： 农业现代化   城市化   农业全要素生产率   长三角地区  

摘要： 在城市化快速发展的过程中,强化农业部门的基础地位,不断提高农业现代化水平,是目前经济转型发展中的关键问题。通过提高农业现代化水平可以扩大农业部门的产出规模,增加就业,提高农村居民的收入和消费水平,同时,可以避免快速城市化所带来的经济和社会问题,以促进城乡统筹发展。文章基于长三角地区面板数据,利用Malmquist指数法测度了衡量农业现代化科技进步的TFP增长率,进一步分析TFP时序、农业现代化投入要素以及其他影响因素对城市化率的影响程度。实证结果表明农业现代化会显著促进城市化发展,但农业现代化还需要从多方面加强,并以此提出促进农业现代化发展的政策建议。

关键词： Feature selection   Filters   Wrappers   Support vector machine   Microarray  

摘要： Feature selection aims at finding the most relevant features of a problem domain. However, identification of useful features from hundreds or even thousands of related features is a nontrivial task. This paper is aimed at identifying a small set of genes, to improving computational speed and prediction accuracy; hence we have proposed a three-stage of gene selection algorithm for microarray data. The proposed approach combines information gain (IG), Significance Analysis for Microarrays (SAM), mRMR (Minimum Redundancy Maximum Relevance) and Support Vector Machine Recursive Feature Elimination (SVM-RFE). In the first stage, intersection part of feature sets is identified by applying the (SAM–IG). While, the second minimizes the redundancy with the help of mRMR method, which facilitates the selection of effectual gene subset from intersection part that recommended from the first stage. In the third stage, (SVM-RFE) is applied to choose the most discriminating genes. We evaluated our technique on AML and ALL (leukemia) dataset using Support Vector Machines (SVM- RBF) classifier, and show the potentiality of the proposed method with the advantage of improving the classification performance.

关键词： PILOT projects   LOYALTY   CLIENTS   PARENT-child interaction therapy   TREATMENT effectiveness   COMMUNITIES  

摘要： Research supports the impact of empirically based treatments, such as Parent-Child Interaction Therapy (PCIT), on producing positive treatment outcomes for clients. However, achieving outcomes in community settings that are similar to those found in research settings can be challenging, and little research has been conducted on how to best train community providers to implement PCIT with fidelity. This study assessed trainee implementation fidelity to the PCIT protocol in community settings. Session fidelity was reviewed for trainees using pre-established session integrity checklists and post hoc video review of key sessions. Analyses revealed that trainees maintained strong overall session fidelity, although fidelity percentages varied by session type and treatment phase. Results also highlight those session content items that are frequently left out by trainees during implementation. Implications of these findings, limitations, and future directions for research and PCIT workshops and consultation are discussed.

关键词： Lung cancer   Biomarkers   EGFR   ALK  

摘要： The arrival of targeted therapies has presented both a conceptual and a practical challenge in the treatment of patients with advanced non-small cell lung carcinomas (NSCLCs). The relationship of these treatments with specific histologies and predictive biomarkers has made the handling of biopsies the key factor for success. In this study, we highlight the balance between precise histological diagnosis and the practice of conducting multiple predictive assays simultaneously. This can only be achieved where there is a commitment to multidisciplinary working by the tumor board to ensure that a sensible protocol is applied. This proposal for prioritizing samples includes both recent technological advances and the some of the latest discoveries in the molecular classification of NSCLCs.

关键词： AFLP   Allen's rule   cryptic species   integrative taxonomy   Mitopus morio   mtDNA  

摘要： Mitopus morio is a widespread harvestman species occurring in most of Europe and in moderate and cold-moderate zones of Asia and North America. The species is characterized by extreme variability in body size and leg length. As leg length is correlated with habitat temperature, *** has been considered as an example of Allen's rule. Recently, observations for a single location in Tyrol, Austria, indicated the absence of mating between short- and long-legged individuals. This study examines for signs of putative cryptic species in *** using an integrative approach that combines mating trials, amplified fragment length polymorphism whole-genome scans, mitochondrial sequences and morphometrics. The mating trials did not corroborate the initial hypothesis of a reproductive barrier associated with leg size. Both types of genetic data revealed the existence of three distinct groups, in line with the mating results but largely unrelated to leg morphology and geographical origin of specimens. Morphometric characters supporting the findings of the other disciplines were identified using a supervised approach. We infer from all data together the existence of strongly diverged cryptic lineages among the analysed individuals, cautiously interpret them as three sympatric species and conclude that in these harvestmen Allen's rule applies at different levels. Due to the unexpected amount of differentiation found within a geographical scale very small compared with the distribution of ***, we suggest a thorough revision of the genus prior to formal taxonomic changes. Our case study underlines the general applicability of the integrative taxonomic protocol used and highlights the relevance of several rationales implemented in the protocol.

关键词： dissociation constant   fluorescence quenching   glucose   maltose   wheat beta-amylase  

摘要： Fluorescence of wheat beta-amylase (WBA) was quenched by the interaction with maltose or glucose, which are competitive inhibitors of WBA, suggesting that the states of tryptophan and tyrosine residues could be changed by the interaction. The fluorescence emitted by excitation at 280 and 295 nm was titrated by changing the concentrations of maltose and glucose. The dissociation constant (K-d) values of the WBA-maltose and WBA-glucose complexes were determined to be 0.20 +/- 0.12 M for maltose and 0.36 +/- 0.11 M for glucose at 25 degrees C, pH 5.4. Maltose exhibited additional binding mode at higher concentration with a distinct K-d value (1.5 +/- 0.4 M). The K-d values at various temperatures and pHs are in agreement with the inhibitor constant (K-i) values previously reported. The negative standard enthalpy changes (delta H degrees) of the WBA association with glucose and maltose indicate that the associations are exothermic. The association constant (K-a) and delta G degrees values of the maltose and glucose binding to WBA decreased slightly with increasing temperature from 25 degrees C to 45 degrees C but not dependent on pH change (pH 3.0, 5.4 and 9.0). Fluorescence of WBA could be used as a structural probe to examine the inhibitory interaction with the products of starch hydrolysis.

关键词： Psychological capital   individual performance   trust   job satisfaction   and multiple mediation  

摘要： This study investigates the mediating effects of psychological capital and trust on the individual performance and job satisfaction relationship by using bootstrapping method. We test our multiple mediation model with a sample of 260 medical staff, which is composed of doctors and nurses. The bootstrap estimates are based on 5000 bootstrap samples in this study. Results reveal that psychological capital and trust transmit the effect of individual performance to job satisfaction. Both are found as mediators for the relationship between individual performance and job satisfaction. Some suggestions for future research will be offered.