Search results for "electrical"
showing 10 items of 11048 documents
Underwater Multirobot Cooperative Intervention MAC Protocol
2020
This work introduces a Medium Access Control (MAC) protocol designed to allow a group of underwater robots that share a wireless communication channel to effectively communicate with each other. The goal of the Underwater Multirobot Cooperative Intervention MAC (UMCI-MAC) protocol presented in this work is to minimize the end to end delay and the jitter. The access to the medium in UMCI-MAC follows a Time Division Multiple Access (TDMA) strategy which is arbitrated by a master, which also has the capability to prioritize the transmission of some nodes over the rest of the network. Two experiments have been carried out with a team of four Autonomous Underwater Vehicles (AUV) in order to comp…
Resource Allocation and Computation Offloading for Wireless Powered Mobile Edge Computing
2022
In this paper, we investigate a resource allocation and computation offloading problem in a heterogeneous mobile edge computing (MEC) system. In the considered system, a wireless power transfer (WPT) base station (BS) with an MEC sever is able to deliver wireless energy to the mobile devices (MDs), and the MDs can utilize the harvested energy for local computing or task offloading to the WPT BS or a Macro BS (MBS) with a stronger computing server. In particular, we consider that the WPT BS can utilize full- or half-duplex wireless energy transmission mode to empower the MDs. The aim of this work focuses on optimizing the offloading decision, full/half-duplex energy harvesting mode and energ…
Assessment of Occupational Health and Job Satisfaction in Workers with Intellectual Disability: A Job Demands–Resources Perspective
2021
In the contexts where people with intellectual disability work, there are factors that determine their job satisfaction. The objective of this study was to test the adequacy of the central assumptions of the Job Demands–Resources (JD-R) theory in workers with intellectual disability employed in different work alternatives. Data from 362 workers in sheltered workshops and 192 workers in supported employment were utilized. The model was contrasted using a structural equation model and a multi-group analysis. The results supported the suitability of the model and confirmed that job demands and job resources evoke two relatively independent processes such as health impairment and motivational p…
The Dark Triad, goal achievement and work engagement as predictors of counterproductive work behaviors among IT employees
2020
BackgroundThe main purpose of this article is to analyze mechanisms associated with counterproductive work behaviors. This entails ac-tions directed against the employer’s interest such as theft, slowing the work down, and avoiding professional responsibilities. This paper analyzes Dark Triad traits of psychopathy, Machiavellianism and narcissism, achievement motivation and work en-gagement as counterproductive work behavior predictors.Participants and procedureThe study included 115 people, 92 men and 23 women, who were employees of technology departments. The average age of respondents is 27.41 (Me = 26). Participants were surveyed using the online questionnaire method.ResultsStatistical …
Differential Effects of Mindfulness-Based Intervention Programs at Work on Psychological Wellbeing and Work Engagement.
2021
Two different mindfulness-based interventions were deployed in a sample of white-collar workers to explore the differential effects on different facets of mindfulness, dimensions of psychological wellbeing, work engagement, performance, and stress of a participant. A total of 28 participants completed one of the different programs, and their results were compared between groups and against 27 participants randomly allocated to a waiting list control group. Results suggest both mindfulness intervention programs were successful at increasing the levels of psychological wellbeing, work engagement, and performance of the participants, as well as decreasing their levels of stress. Significant di…
Workaholism and work engagement: how are they similar? How are they different? A systematic review and meta-analysis
2019
Workaholism and work engagement can be depicted, respectively, as the pathological and the healthy form of heavy work investment. In spite of their different definitions and outcomes on individual and organizational life, workaholism and work engagement are not clearly and adequately distinguished by scholars and researchers as they appear to show some overlapping features. The aim of this investigation was to meta-analyze available studies, selected by systematic review, on the relations between subdimensions of workaholism and work engagement. Thirty-five studies were eligible for analysis. Associations emerged between Working Excessively and Absorption (g = .34), Working Compulsively and…
Differential effects of workaholism and work engagement on the interference between life and work domains
2018
This study analyzed the differences between workaholism and work engagement in relation to their influence on work–life interference. Workaholism is an addiction to work, characterized by obsessive attitude towards job, whereas work engagement concerns a positive pattern of thoughts and feelings about one’s job; these two constructs thus represent pathological and healthy forms of heavy work investment, respectively. As a consequence, it was expected that workaholism and work engagement would have different effects on perceived interference between work and life domains. We assessed levels of workaholism, work engagement, work-to-life interference, and life-to-work interference in a sample …
The role of age in the relationship between work social characteristics and job attitudes
2019
Despite the amount of research on the link between work social characteristics and job attitudes, there is a lack of work on moderators of this relationship. In the present study, we examine the role of age as a moderating effect of this relationship using life-span development theory. The aim of this paper is to study the moderator effect of age in the relationship between two work social characteristics (interaction outside the organization and interdependence) and job attitudes (i.e., general job satisfaction and work engagement). Participants were 258 workers from private organizations. Data were collected at two time points (2 to 4 weeks between T 1 and T 2 ). Results showed that the r…
Work–Family Boundary Management Profiles in Two Finnish Samples : A Person-oriented Approach
2015
Background: The present study aims to identify different work-family boundary management profiles among Finnish employees, and examine how these relate to conflict between work and family or their mutual enrichment. Method: Participants from two samples, one consisting of university staff (n1 = 1,139) and another of nurses (n2 = 271), were asked to respond to an online survey concerning work-family boundary management, work-to-family enrichment, and work-to-family conflict scales. Results: A cluster analysis identified three profiles in both samples: segmentors, integrators and favoring family over work in the university sample, and segmentors, integrators and favoring work over family in t…
Work Schedules and Work–Family Conflict Among Dual Earners in Finland, the Netherlands, and the United Kingdom
2016
Many European families are affected by the 24/7 economy, but relatively little is known about how working parents experience nonstandard hours. The aim of this study was to analyze the possible associations of dual earners’ work schedules and other work-related factors with their experience of time- and strain-based work–family conflict. These phenomena were examined among dual earners living in Finland, the Netherlands, and the United Kingdom, countries that differ in working time practices and policies. Multigroup structural equation modeling was used to analyze cross-cultural data on dual earners with children aged 0 to 12 years ( N = 1,000). The results showed that working nonstandard …