Refinement and validation of a comprehensive scale for measuring HR practices aimed at performance-enhancement and employee-support

The purpose of this paper is to refine and validate a Human Resource practices (HRP) scale to measure employees' perceptions and test a two-tier model structured in eight practices and two bundles. In a sample of 554 employees, an EFA (Exploratory Factor Analysis) offered six factors that explained about 70% of the variance. Then, with 1647 employees (from 41 Spanish organizations), first- and second-order models were tested with Confirmatory Factor Analysis (CFA). The former encompasses eight practices. The latter grouped the practices in two bundles, one on enhancing performance and the other on supporting employees. The Cronbach's alpha, Rho coefficient (Composite Reliability Coefficient), Omega coefficient, and Spearman-Brown split half coefficient showed good reliability. Validity evidence was found for construct, criterion, convergent, content, discriminant, and predictive validity. Moreover, the paper integrates different ways of approaching the study of HR management based on employees' perceptions, using a two-tier approach. The two-bundle model showed better fit, pointing out the importance of paying attention to multiple outcomes for employees and organizations. The study makes a relevant theoretical contribution about the role and aims of HRM practices for organizational success and employees' performance and well-being.     

凉山州乌饭树资源的开发利用

本文对产于凉山州乌饭树的生物学特征、分布和生态环境、食用和药用价值、开发利用现状作了综合概述,并提出了开发利用和保护该资源的建议。     

A simple procedure for the selection of significant effects

Summary.  Given a large number of test statistics, a small proportion of which represent departures from the relevant null hypothesis, a simple rule is given for choosing those statistics that are indicative of departure. It is based on fitting by moments a mixture model to the set of test statistics and then deriving an estimated likelihood ratio. Simulation suggests that the procedure has good properties when the departure from an overall null hypothesis is not too small.     

网络环境下的学习模式探索

教育模式是教育观念、教育思想、教与学理论的集中体现,网络的出现为学习者提供了适应个性化需求的自主学习的机会,建立满足不同学生需要的网络学习模式,是网络教学的当务之急。     

卡伯拉尔远航印度意义初探

1500-1501年卡伯拉尔率葡萄牙舰队远航印度,堪称地理大发现第一阶段仅次于三大航行的第四大航行。这次远航经过了欧美非亚四大洲,往返行程5.5万公里。卡伯拉尔远航开创了发现、殖民南美大陆和巴西的进程,重新发现了世界第四大岛马达加斯加。从此葡萄牙人在印度辟建商站立足插手,创建商业殖民帝国;同时开始在印度洋上打击摩尔人—穆斯林,由此开辟了反击反包围摩尔人—穆斯林的新战线,实现了当初的一个战略意图,问鼎印度洋霸权。     

铁凝小说对人的"存在"的追问

文章通过分析铁凝的小说《哦，香雪》、《棉花垛》、《永远有多远》、《秀色》、《安德列的晚上》、《树下》等对人的“存在”的发现和追问，试图寻找这位女性作家作品里的某些欠缺，而对其作品所展示的艺术表现力和概括力也予以充分肯定。     

现代信息技术在高校科技产业人力资源管理中的应用

信息时代对企业管理和人力资源管理提出了新的挑战。现代高校科技产业人力资源管理由于历史的原因更具特殊性。因此,改革过去传统的人事管理模式,建立适应高校科技产业发展的人力资源管理机制已迫在眉睫。而其中的关键和难点,在于逐步开发和建立基于现代信息技术的高校科技产业人力资源管理信息系统,从而实现高校科技产业人力资源管理信息化。     

A modified false discovery rate multiple-comparisons procedure for discrete data, applied to human immunodeficiency virus genetics

Summary.  To help to design vaccines for acquired immune deficiency syndrome that protect broadly against many genetic variants of the human immunodeficiency virus, the mutation rates at 118 positions in HIV amino-acid sequences of subtype C versus those of subtype B were compared. The false discovery rate (FDR) multiple-comparisons procedure can be used to determine statistical significance. When the test statistics have discrete distributions, the FDR procedure can be made more powerful by a simple modification. The paper develops a modified FDR procedure for discrete data and applies it to the human immunodeficiency virus data. The new procedure detects 15 positions with significantly different mutation rates compared with 11 that are detected by the original FDR method. Simulations delineate conditions under which the modified FDR procedure confers large gains in power over the original technique. In general FDR adjustment methods can be improved for discrete data by incorporating the modification proposed.     

Beggars can be choosers: Resource scarcity,dynamism, search activities,and their joint impact on performance

Research on firm search stresses the need for firms to adapt and align concurrently with their environment to optimize the ability to sense and seize opportunities for sustained performance. We postulate resource scarcity as an important contingency factor for the search-performance relationship, and assess its joint influence with high and low dynamism. Using a dataset spanning 23 years, we examine the performance implications of combinations of internal and external exploratory and exploitative search in resource-scarce environments, under conditions of high and low dynamism. We find that resource scarcity is an important condition for performance stemming from exploratory and exploitative search: even under conditions that involve low dynamism, but joined with resource scarcity, firms may benefit from pursuing exploratory and exploitative knowledge simultaneously.     

职场孤独感对员工帮助行为的影响 ——基于资源保存理论视角

基于资源保存理论视角,构建了一个有调节的中介模型,实证研究了职场孤独感对员工帮助行为的影响。结果显示：职场孤独感对员工帮助行为具有负向影响,关系认同在职场孤独感与员工帮助行为之间起中介作用,自我控制资源损耗负向调节了关系认同与员工帮助行为之间的关系,自我控制资源损耗调节了关系认同在职场孤独感和员工帮助行为之间发挥的中介作用。基于此,企业应重视员工的职场孤独感并加强管理,采取相应激励措施鼓励员工提高关系认同感,补充自我控制资源,从而降低职场孤独感对企业组织的不利影响。