PURPOSE The aim of this study is to investigate whether organizational justice climate at the workplace level is associated with individual staff members' perceptions of care quality and affective commitment to the workplace. METHODS The study adopts a cross-sectional multi-level design. Data were collected using an electronic survey and a response rate of 75% was obtained. Organizational jus...

Everyday, electricity generation companies submit a generation schedule to the grid operator for the coming day; computing an optimal schedule is called the unit-commitment problem. Generation companies can also occasionally submit changes to the schedule, that can be seen as intra-daily incomplete recourse actions. In this paper, we propose a two-stage formulation of unit-commitment, wherein b...

Integration of wind units into power system introduce various sources of technical and economical challenges to operation of power system due to its inherent uncertainty and variability. In operation of power system, stochastic wind generation can affect on the system security. In this paper, optimal security-constrained unit commitment (SCUC) in presence of demand response program (DR) based o...

Accurate models for electric power load forecasting are essential to the operation and planning of a power utility company. Load forecasting helps electric utility to make important decisions on trading of power, load switching, and infrastructure development. Load forecasts are extremely important for power utilizes ISOs, financial institutions, and other stakeholder of power sector. Short ter...

This paper outlines the fundamental features of the PJM day-ahead energy market and real-time energy market. The Day-ahead market is based on a voluntary least-cost security constrained unit commitment and dispatch with several fundamental design features that ensure the market is robust and competitive. This market offers market participants the option to lock in energy and transportation char...

In this paper unit commitment problem (UCP) with spinning reserve and ramp rate constraint has been solved using Ant Colony System (ACS). In this model, foraging behavior of the real ants for finding its food from its start (nest) to its destination (food) is simulated to obtain the optimum solution. A search strategy has been adopted which involves the artificial ants to obtain the minimum cos...

Security trade-offs have been established for one-way bit commitment in Ref. [1]. We study this trade-off in two selection settings. We show that for an ‘abelian’ selection rule (exemplified by particle conservation) the standard trade-off between sealing and binding properties still holds. For the nonabelian case (exemplified by angular momentum conservation) the security trade-off can be more...

This paper aims to find a proper security notion for commitment schemes to give a sound computational interpretation of symbolic commitments. We introduce an indistinguishability based security definition of commitment schemes that is equivalent to non-malleability with respect to commitment. Then, we give a construction using tag-based encryption and one-time signatures that is provably secure...

OBJECTIVE The aim of this study was to test a multilevel model linking unit-level leader-member exchange quality and structural empowerment to nurses' psychological empowerment and organizational commitment at the individual level of analysis. BACKGROUND Few studies have examined the contextual effects of unit leadership on individual nurse outcomes. Workplace empowerment has been related to ...

Security trade-offs have previously been established for one-way bit commitment. We study this trade-off in two superselection settings. We show that for an ‘abelian’ superselection rule (exemplified by particle conservation) the standard trade-off between sealing and binding properties still holds. For the non-abelian case (exemplified by angular momentum conservation) the security trade-off c...