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A survey of current work on database systems is presented. The area is divided into three main sectors: data models, data languages and support for database operations. Data models are presented as the link between the database and the real world. Languages range from formal algebraic languages to attempts to use a dialogue in English to formulate queries. The support includes hardware for content addressing, database machines and software techniques for optimizing and evaluating group expressions. Mathematical models are used to organize this support. Throughout there is a tutorial component and evaluation, which in both cases is related to the application of database ideas to documentation.

Workplace voice is well-established and encompasses behaviors such as prosocial voice, informal complaints, grievance filing, and whistleblowing, and it focuses on interactions between the employee and supervisor or the employee and the organizational collective. In contrast, our chapter focuses on employee prosocial advocacy voice (PAV), which the authors define as prosocial voice behaviors aimed at preventing harm or promoting constructive changes by advocating on behalf of others. In the context of a healthcare organization, low quality and unsafe patient care are salient and objectionable states in which voice can motivate actions on behalf of the patient to improve information exchanges, governance, and outreach activities for safer outcomes. The authors draw from the theory and research on responsibility to intersect with theories on information processing, accountability, and stakeholders that operate through voice between the employee-patient, employee-coworker, and employee-profession, respectively, to propose a model of PAV in patient-centered healthcare. The authors complete the model by suggesting intervening influences and barriers to PAV that may affect patient-centered outcomes.

This study aims to examine moderated-mediation between ethical leadership (EL) and organizational citizenship behavior (OCB). Specifically, a moderating effect of high performance managerial practices (HPMPs) on the indirect effect of EL on OCB through employees’ psychological empowerment (PE) was tested.

Data were collected from 267 bank employees including subordinates and their supervisors. Partial least squares structural equation modeling was used for data analysis.

The results indicate that PE mediates the relationship between EL and OCB, and HPMPs enhance OCB by increasing the effect of EL on employees’ PE.

This study contributes to human resource management and leadership literature by explaining the moderated-mediation mechanisms between EL and OCB. The findings help to understand how HPMPs enhance employees’ OCB by strengthening the effect of EL on PE. Limitations are related to external validity and cross-sectional nature of data.

Organizations’ use of HPMPs makes ethical leaders more effective in enhancing employees’ PE and, subsequently, their OCB.

Previous research lacks evidence on the indirect effect of EL on employee OCB through PE. Moreover, to the best of the authors’ knowledge, no previous study has examined the moderating effect of HPMPs on the abovementioned indirect relationship. This study has addressed the abovementioned research gap.

The purpose of this research paper is to study the effect of transformational leadership (TL) and job crafting (JC) on nurses’ innovative work behaviors (IWB) while accounting for the mediating effect of psychological empowerment (PsyEmp).

To test the developed hypotheses quantitatively, two statistical methods were used: structural equation modeling via partial least squares and bootstrapping estimation. The survey elicited responses from 270 nurses, but after data screening, only 168 were used. Confirmatory factor analysis was used to establish the distinctness of the variables used in this study.

Findings indicate that there are a positive influence of both TL and JC on PsyEmp. Additionally, the findings show a beneficial effect of PsyEmp as a mediator between TL, JC and IWB.

This study adds to the body of knowledge by demonstrating the effects of nurse TL and JC on nurses’ PsyEmp and IWB. In addition to the role of PsyEmp as a partial mediator in the relationship between TL, JC and IWB. The research novelty resides in the fact that none of these links has before been studied in the context of Iraq.

Proper identification, allocation, and pricing of risks are critical to effective procurement and project delivery, particularly when contracts specify the intended performance instead of how the work is to be performed. This paper presents an overview of the sources of project risks when performance specifications are used for highway infrastructure procurement. The findings are based on a comprehensive literature review and interviews with subject-matter experts involved in developing performance specifications for highway infrastructure. The authors conclude that wider use of performance specifications in U.S. highway infrastructure construction requires a fundamental reassessment of risk allocation and pricing. Highway agencies and the contractors need to realign their respective organizational capabilities with the goal of using performance specifications as a facilitator of innovation, a goal that remains elusive after decades of applied research.

Proper identification, allocation, and pricing of risks are critical to effective procurement and project delivery, particularly when contracts specify the intended performance instead of how the work is to be performed. This paper presents an overview of the sources of project risks when performance specifications are used for highway infrastructure procurement. The findings are based on a comprehensive literature review and interviews with subject-matter experts involved in developing performance specifications for highway infrastructure. The authors conclude that wider use of performance specifications in U.S. highway infrastructure construction requires a fundamental reassessment of risk allocation and pricing. Highway agencies and the contractors need to realign their respective organizational capabilities with the goal of using performance specifications as a facilitator of innovation, a goal that remains elusive after decades of applied research.

Drawing on the self-consistency theory, this study aims to test a model where employees' supervisor-based self-esteem (SBSE) is positively related to their promotive and prohibitive voice and mediate the positive relationship between leader–member exchange social comparison (LMXSC) of an employee's promotive and prohibitive voice, but only for local rather than migrant workers.

To test the study hypotheses, multi-source data were collected from 341 matched supervisor–supervisee dyads working in a diverse range of organizations in the Kingdom of Saudi Arabia.

As predicted, employees' SBSE is positively related to their promotive and prohibitive voice and mediates a positive relationship between their LMXSC and their promotive and prohibitive voice, but only for local workers. The study findings support the self-consistency theory perspective on LMX and provide new insight into the “dark side” of migrant working – a lack of voice.

This study responds to calls for more research that explores the roles played by macro-environmental factors on employees' voice. Implications for theory and practice are discussed.