Search results for "Workload"

The collaborative consistent vehicle routing problem with workload balance

2021

Abstract The rising competition in the logistics sector forces companies to be more economically efficient. One of the major sources of inefficiency is the incomplete usage of available resources, such as vehicles’ capacities. Mechanism that allow to better exploit such resources by enabling carrier collaborations are on the rise. Our study examines a centrally organized multi-period collaborative vehicle routing problem, where carriers can exchange customers who have to be serviced on a regular basis. Collaborations, where carriers serve frequent customers, are supposed to face the problem of (i) time consistency in terms of visiting time, and of (ii) service consistency. The latter ensure…

Vehicle scheduling for rental-with-driver services

2021

Abstract In this paper, we introduce a new vehicle scheduling problem (VSP) with driver consistency faced by rental-with-driver companies. A weekly time-horizon is considered and a set of potential customers, each one associated with a list of required tasks, is assumed. The company can choose to accept or reject a customer, but if accepted, all required tasks must be performed by the same driver. A profit is associated with each customer. The goal is to maximize the company’s total profit, by respecting a list of daily and the weekly drivers’ workload limitations imposed by drivers’ contracts. We propose a mathematical formulation of the problem and design an exact solution method based on…

Skilled workforce scheduling in Service Centres

2009

Abstract The Skilled Workforce Project Scheduling Problem (SWPSP) is a complex problem of task scheduling and resource assignment that comes up in the daily management of many company Service Centres (SC). The SWPSP considers many real characteristics faced daily by the SC: client-company service quality agreements that establish maximum dates for the beginning and the end of tasks with penalties for delays, criticality levels indicating the client-priority in processing each task, generalized precedence relationships that can produce cycle structures, time period and percentage time lags and variable task durations depending on the worker executing the task. Furthermore, the SC workforce i…

Elicitation and evaluation of zoom gestures for touchless interaction with desktop displays

2019

Touchless gestural interaction has been widely studied and adopted in many contexts. Furthermore, the growing availability of low-cost enabling devices, such as Kinect or Leap Motion, boosted up the interest in such interaction both for commercial and scientific purposes, both for large public displays and for personal displays. The problem of choosing the right touchless gesture for the right action is thus still an open issue, depending on several aspects, such as context, purpose, users' culture, etc. In this work, we first present the results of a gesture elicitation study that allowed us to identify a set of touchless gestures for performing zoom actions while interacting with desktop …

Effects of a constant and incremental workload training protocol on upper body strenght gains

2011

A study of temporal estimation from the perspective of the Mental Clock Model.

2009

M. Cardaci's (2000) Mental Clock Model maintains that a task requiring a low mental workload is associated with an acceleration of perceived time, whereas a task requiring a high mental workload is associated with a deceleration. The authors examined the predictions of this model in a musical listening condition in which musical pieces were audible in several structural complexities. To measure the effects of musical complexity on time estimation, the authors used retrospective and prospective time-estimation paradigms. For the retrospective paradigm, the authors invited participants to listen to a musical piece and then estimate its duration. For the prospective paradigm, the authors invit…

Academic Workload, Well-Being and Workaholism in Italian Universities

2017

As suggested by Romainville (1996), universities are the only organizations focussed on dual core functions of knowledge creation and knowledge transmission through the processes of research and teaching. University academic staff do complex work in an increasingly demanding environment, so the workaholism risk seems to be higher than in other professions. Although this type of work behavior seems to be culturally approved by the academic community, it constitutes an element of risk for the health and well being of those who have chosen this type of profession on the basis of different expectations, especially in pace, amount, and independence at work. A very interesting line of research (w…

Performance organizzativa e carichi di lavoro nello studio sui Consorzi Regionali di Bonifica

2022

The objective of our research was to verify, through an empirical survey, the measuring of the relationship between workload and performance within complex public organizations. Starting from the reference literature the research approach adopted was of a mixed type characterized by an exploratory design and the analysis of a case study. #e data collection was carried out through documentary sources and some structured interviews administered to the management and the various sector heads of reclamation consortium studied. Based on the interviews carried out, a relationship between the measurement of the workload and the performance within the institution examined is inferred, because there…

The balancing act of combining school and football in the transition from a non-professional club into junior-elite academy football

2021

Football players in the transition from junior-to-senior are usually involved in dual careers, combining school and football – a process that makes them dependent on a holistic talent-development journey. The aim of the current study was to describe how male junior elite football players (N=10; 5=living at home, 5=living away from home) perceived stressors in the transition from a non-professional club into a junior elite academy. Furthermore, the school transition (between lower- and upper-secondary school) and social transition (based on the school and football transitions) as a consequence of the football transition into academy football. Based on Wylleman and Lavallee’s (2004) and Stamb…

Volunteer satisfaction in sports clubs: A multilevel analysis in 10 European countries

2020

Regular voluntary engagement is a basic resource for sports clubs that may also promote social cohesion and active citizenship. The satisfaction of volunteers is an imperative factor in this engagement, and the purpose of this article is to explore individual and organizational determinants of volunteer satisfaction in sports clubs. Theoretically, our study builds on the actor-theory concepts where volunteer satisfaction depends on subjective evaluations of expectations and experiences in a sports club (‘logic of situation’), so that positive evaluations lead to higher satisfaction and, hopefully, retention of volunteers. This research uses a sample of 8131 volunteers from 642 sports clubs…