Search results for "voluntary"

Contextual factors predicting compliance behavior during the COVID-19 pandemic: A machine learning analysis on survey data from 16 countries.

2022

Voluntary isolation is one of the most effective methods for individuals to help prevent the transmission of diseases such as COVID-19. Understanding why people leave their homes when advised not to do so and identifying what contextual factors predict this non-compliant behavior is essential for policymakers and public health officials. To provide insight on these factors, we collected data from 42,169 individuals across 16 countries. Participants responded to items inquiring about their socio-cultural environment, such as the adherence of fellow citizens, as well as their mental states, such as their level of loneliness and boredom. We trained random forest models to predict whether someo…

Dépendance de la fatigue à la longueur musculaire : approche mécanique et neurophysiologique

2006

The objective of this work is to evaluate the fatigue dependency on the knee extensor muscles length. Exercises varying the type of contraction (isometric and eccentric) and intensity of contraction (maximal and sub-maximal) are performed in order to disrupt the neuromuscular system by different factors of fatigue: central and peripheral. These exercises are performed at two muscular lengths (S and L, corresponding respectively to 40 and 100° of knee flexion). Neuromuscular parameters (maximal torque, muscular twitch, voluntary activation level, electromyographic activity, etc.) are analyzed in pre- and post-fatigue conditions in the type of contraction required by the fatiguing exercise. I…

Acoustic rhinometry in pre-school children.

1993

Acoustic rhinometry was performed in 35 normal nose-breathing children between 3 and 6 years. The average cross-sectional areas at the nasal valve, at the anterior end of the turbinates, and in the nasopharynx were 0.34 +/- 0.06 cm2, 0.35 +/- 0.08 cm2 and 1.37 +/- 0.48 cm2 respectively. The average minimal cross-sectional area was 0.29 +/- 0.06 cm2. The minimal cross-sectional area was located at the nasal valve in 14 and at the anterior end of nasal turbinates in 21 of the 35 children. As would be expected, the cross-sectional areas at different sites of the nasal cavity increased with increasing age of the children. But, whereas the minimal cross-sectional area increased by 0.024 cm2 per …

How to make head or tail of ‘bridging’ and ‘bonding’?: addressing the methodological ambiguity1

2008

A distinction has recently been proposed between bridging (or encompassing) and bonding (or inward-looking) social networks. However, existing theoretical contributions remain vague as to the fundamental meaning of both concepts. As a consequence, two distinct interpretations have developed alongside each other. In the present paper, we employ data on voluntary association membership in Flanders to empirically illustrate that both approaches can lead to substantially different outcomes and therefore appear to tap into different dimensions of bridging versus bonding. These findings underline the problematic nature of the current conceptual ambiguity. We conclude that should the bridging/bond…

Determining the optimal maximal and submaximal voluntary contraction tests for normalizing the erector spinae muscles

2019

Background This study aimed to identify which maximum voluntary isometric contraction (MVIC) and sub-MVIC tests produce the highest activation of the erector spinae muscles and the greatest reduction in inter-individual variability, to put them forward as reference normalization maneuvers for future studies. Methods Erector spinae EMG activity was recorded in 38 healthy women during five submaximal and three maximal exercises. Results None of the three MVIC tests generated the maximal activation level in all the participants. The maximal activation level was achieved in 68.4% of cases with the test performed on the roman chair in the horizontal position (96.3 ± 7.3; p < 0.01). Of the fi…

Absolwenci instytucji drugiej szansy i cich świat wartości

2016

Rozdział podejmuje problematykę wartości wśród absolwentów Ochotniczych Hufców Pracy. Jest to instytucja drugiej szansy edukacyjnej, która podejmuje pracę z młodzieżą wykluczoną społecznie i trudną wychowawczo. Praca wychowawcza powoduje, że młodzież ta w dużej części uzyskuje kwalifikacje zawodowe pozwalające im założyć rodzinę i kształtować odpowiedzialnie własną ścieżkę życia. Losy absolwentów świadczą pozytywnie o pracy edukacyjno-wychowawczej struktur OHP.

Exploring the relationships between high involvement work system practices, work demands and emotional exhaustion: a multi-level study.

2016

This study explores the impact of enacted high involvement work systems (HIWS) practices on employee emotional exhaustion. This study hypothesized that work overload and job responsibility mediate the relationship between HIWS practices (ability, motivation, opportunity and work design HIWS practices) and employee emotional exhaustion. A total of 360 employees (nested within 49 work units) rated their feelings of work overload, job responsibility and emotional exhaustion. The line managers from these work units rated the enacted HIWS practices. Results indicate that ability- and motivation HIWS practices are positively related to work overload, and ability-, motivation- and work design HIWS…

2021

The aim of the study was to (1) assess the within-session reliability of a unilateral isometric hex bar pull (UIHBP) maximal voluntary contraction (MVC) test and, (2) determine unilateral isometric absolute peak force (PFabs) and relative peak force (PF) values in freeski athletes. Twenty-one male and eight female academy to national team freeskiers performed the novel UIHBP MVC task on a force plate and PFabs and relative PF were assessed (1000 Hz). Within-session measures of PFabs offered high reliability on left and right limbs for males (ICC = 0.91–0.94, CV = 2.6–2.2%) and females (ICC = 0.94–0.94, CV = 1.4–1.6%), while relative PF measures showed good to high reliability in both left a…

El contrato a tiempo parcial: reflexiones sobre su régimen jurídico, flexibilidad y precariedad

2019

El presente trabajo toma en consideración que el trabajo a tiempo parcial es un buen instrumento que permite mayor libertad en la configuración del tiempo de trabajo, beneficiando tanto empresas como trabajadores. Sin embargo, en España, la realidad es que las más de las veces es un ejemplo de trabajo precario impuesto a los trabajadores. Por ello, se analiza el régimen jurídico de esta modalidad contractual con el fin de identificar aquellos aspectos que impiden esta funcionalidad, al tiempo que se proponen cambios en la forma de regular que reviertan esta situación. This paper takes into account that part-time contracts work are a good instrument that allows greater freedom to configure t…

Sales Channels and Media Digitalization Impact on People Voluntary Savings for Retirement

2019

Due to the implementation of new technologies and orientation on digital solutions the communication and sales channels have changed dramatically. Information and client service on-line availability presents strong advantages for business, state agencies as well as customers. However, lack of personal interaction during the communication and sales process can make it difficult for people to understand and even frustrate their desire for a product or service. The purpose of the research is to analyse the digitalization impact on voluntary savings for retirement in Latvia and make comparisons with other countries. The voluntary pension schemes are the part of pension system and its third pill…