Search results for "volunteer"
showing 10 items of 304 documents
Impact of GMOs within cropping systems: towards a more systemic approach
2004
International audience
Kiistanalainen SS-palapeli
2019
Resveratrol-induced xenophagy promotes intracellular bacteria clearance in intestinal epithelial cells and macrophages
2019
International audience; Autophagy is a lysosomal degradation process that contributes to host immunity by eliminating invasive pathogens and the modulating inflammatory response. Several infectious and immune disorders are associated with autophagy defects, suggesting that stimulation of autophagy in these diseases should be bene ficial. Here, we show that resveratrol is able to boost xenophagy, a selective form of autophagy that target invasive bacteria. We demonstrated that resveratrol promotes in vitro autophagy-dependent clearance of intracellular bacteria in intestinal epithelial cells and macrophages. These results were validated in vivo using infection in a transgenic GFP-LC3 zebra f…
Effects of low-gamma tACS on primary motor cortex in implicit motor learning
2019
Abstract In the primary motor cortex (M1), rhythmic activity in the gamma frequency band has been found during movement planning, onset and execution. Although the role of high-gamma oscillatory activity in M1 is well established, the contribution of low-gamma activity is still unexplored. In this study, transcranial alternating current stimulation (tACS) was used with the aim to specifically modulate low-gamma frequency band in M1, during an implicit motor learning task. A 40 Hz-tACS was applied over the left M1 while participants performed a serial reaction time task (SRTT) using their right hand. The task required the repetitive execution of sequential movements in response to sequences …
Le organizzazioni di volontariato nella provincia di Palermo
2022
Il capitolo presenta un’analisi delle organizzazioni di volontariato della provincia di Palermo, sulla base dei dati di una survey regionale, condotta su iniziativa dei tre Centri di servizio per il Volontariato e del Comitato di Gestione dei fondi speciali per la Sicilia. L’obiettivo e quello di delineare un’immagine articolata delle organizzazioni, in ragione di alcune dimensioni essenziali: 1) identificazione anagrafica (denominazione, comune della sede sociale, forma giuridica, iscrizione/non iscrizione al registro regionale del volontariato/della protezione civile e al Centro di Servizio per il Volontariato); 2) informazioni circa il profilo socio-professionale, la rete di appartenenze…
Neural correlates of intimate picture stimuli in females
2018
Jacob et al. (2011) previously reported on intimate picture stimuli for emotion research in females in Psychiatry Research. Difficulties to engage in intimate relations constitute problems of many mental disorders, and intimacy must be differentiated from pure sex drive. Functional neuroimaging is an important tool to understand the pathophysiology of psychiatric disorders. We now studied cerebral activation in response to intimate stimuli in 35 healthy women. Comparison stimuli were taken from the International Affective Picture System. Neuroimaging revealed increased activation in bilateral occipitotemporal, parietal and anterior cingulate cortices extending to the orbitofrontal area. The…
Neck and Shoulder Muscle Activation Among Experienced and Inexperienced Pilots in +Gz Exposure
2017
Background The aim of the present study was to compare differences in electromyography (EMG) activation of the neck and shoulder muscles between groups of inexperienced and experienced pilots during controlled +Gz exposure in a centrifuge. Methods The subjects were volunteer cadets (inexperienced group) and lieutenants (experienced group) undergoing their first centrifuge training. The first group did not have any high performance aircraft (HPA) experience, while the latter one had a 1-yr experience of intense flying of HPA. During the centrifuge run, EMG activity was recorded from the left and right shoulder, neck flexor, and neck extensor muscles. Results The pilots without HPA experience…
Codesigning technology for a voluntary-sector organization
2019
© 2019 Khushnood Naqshbandi, Simon Hoermann, David Milne, Dorian Peters, Benjamin Davies, Sophie Potter, & Rafael A. Calvo. This paper presents an investigation into the experiences and perceptions of volunteers and community managers of an Australian voluntary-sector organization that supports young help-seeking people. The process focused specifically on the design of a chat tool, a rudimentary version of which was conceptualized and tested during a trial completed prior to this study. The process explored the motivations and experiences of these volunteers using a codesign approach, which led to the development of specific features of the chat tool that were tailored to the nature of the…
The Economic Value of Volunteer Work
2010
Despite the socioeconomic interest that is associated with volunteer work, the practice of valuing it is limited, and few scientific advances have been made. In this context, this study first analyses why these advances are scarce, paying special attention to the limitations of micro- and macro-accounting systems, including volunteer work accounts. It then proposes a method with heuristic capacity for valuing the various economic dimensions of volunteer work. The third part of this article applies this proposal to social and environmental volunteer work in the Spanish region of Valencia. The conclusions bring to focus the fact that whereas the technical obstacles faced in conducting empiri…
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…