Search results for "TIL"
showing 10 items of 12281 documents
Is Autonomy Always Beneficial for Work Engagement? A Six-year Four-Wave Follow-Up Study.
2021
Work engagement is expected to result from job resources such as autonomy. However, previous results have yielded that the autonomy–work engagement relationship is not always particularly strong. Whereas previous longitudinal studies have examined this relationship as an average at a specific point in time, this study examined whether this relationship is different within individuals from one time to another over the years. Furthermore, experiences of work engagement are expected to affect how employees benefit from autonomy, but no studies have so far investigated whether the initial level of work engagement affects the autonomy–work engagement relationship. This study aimed to first ident…
Mental health promotion competencies in the health sector based on a Delphi study
2018
Purpose Effective public mental health policy and practice call for a trained workforce that is competent in mental health promotion and delivering on improved mental health. Systematic information on what competencies are needed for mental health promotion practice in the health sector is lacking. The purpose of this paper is to investigate these competencies for mental health promotion. Design/methodology/approach A Delphi survey was carried out to facilitate a consensus-building process on development of the competencies. Professionals (n=32) working in mental health and mental health promotion took part in the survey. The experts were asked their professional views on the needed compet…
A virtual spreader to overcome experimental limits: Example of use to deepen the meaning of the transverse coefficient of variation
2021
National audience; Nowadays, centrifugal spreading is the most used method to apply fertiliser in fields. Numeroustechnical developments have improved spreaders to reach high precision applications.Nevertheless, these developments have never taken into account the influence of the spreadingvelocity variation on the shape of the spread pattern. However, practical examples show that speedvariations regularly happen in the field. For instance, high speeds applications require punctualslowing down because of:- Trees or posts;- Slopes, hills;- Field borders/ends.Technical devices already exist to avoid the influence of the travel speed on the disc rotation speedand on the application rate in fie…
Teachers’ professional agency in a centralisation-decentralisation system and a hierarchical cultural context : the case of Hong Kong
2022
Teachers are frontline actors in actualising educational innovations. In some contexts, teachers’ professional agency is undervalued. This study investigated teachers’ agency and its related workplace affordances in Hong Kong, which features a centralised-decentralisation education governance system, and a hierarchical work culture. The study was based on 21 semi-structured interviews with teachers, and employed a deductive thematic analysis. Agency enactment was categorised into 1) pedagogical agency within classrooms, and 2) relational agency in the professional community. The factors contributing to workplace affordances were grouped as pertaining to 1) the collegial community, 2) school…
Beyond “liberals” and “conservatives”: Complexity in ideology, moral intuitions, and worldview among Swedish voters
2020
This research investigated the congruence between the ideologies of political parties and the ideological preferences (N = 1515), moral intuitions (N = 1048), and political values and worldviews (N = 1345) of diverse samples of Swedish adults who voted or intended to vote for the parties. Logistic regression analyses yielded support for a series of hypotheses about variations in ideology beyond the left-right division. With respect to social ideology, resistance to change and binding moral intuitions predicted stronger preference for a social democratic (vs. progressive) party on the left and weaker preference for a social liberal (vs. social conservative or liberal-conservative) party on t…
Regulation of motility of cells from marine sponges by calcium ions
1996
Sponges are known not to contain muscle and nerve cells. Since sponge cells are characterized by high motility we determined the effect of intracellular calcium ion concentration ([Ca2+]i) on their motility. Addition of the Ca2+ ionophore ionomycin to dissociated cells from the marine sponge Suberites domuncula caused in Ca(2+)-containing artificial seawater (ASW) an increase in motility from 0.2 micron/min (absence of the ionophore) to 3.7 microns/min (presence of ionomycin). When the experiments were performed in Ca(2+)-free medium, no effect of ionomycin could be observed. In parallel experiments the changes of [Ca2+]i using the dye Fura-2 were measured. The experiments revealed that ion…
The XENON1T Dark Matter Experiment
2017
The XENON1T experiment at the Laboratori Nazionali del Gran Sasso (LNGS) is the first WIMP dark matter detector operating with a liquid xenon target mass above the ton-scale. Out of its 3.2 t liquid xenon inventory, 2.0 t constitute the active target of the dual-phase time projection chamber. The scintillation and ionization signals from particle interactions are detected with low-background photomultipliers. This article describes the XENON1T instrument and its subsystems as well as strategies to achieve an unprecedented low background level. First results on the detector response and the performance of the subsystems are also presented. © 2017, The Author(s).
Search for Light Dark Matter Interactions Enhanced by the Migdal Effect or Bremsstrahlung in XENON1T.
2019
Direct dark matter detection experiments based on a liquid xenon target are leading the search for dark matter particles with masses above ∼5 GeV/c2, but have limited sensitivity to lighter masses because of the small momentum transfer in dark matter-nucleus elastic scattering. However, there is an irreducible contribution from inelastic processes accompanying the elastic scattering, which leads to the excitation and ionization of the recoiling atom (the Migdal effect) or the emission of a bremsstrahlung photon. In this Letter, we report on a probe of low-mass dark matter with masses down to about 85 MeV/c2 by looking for electronic recoils induced by the Migdal effect and bremsstrahlung us…
Valutazione degli effetti del dimetilamino-partenolide (DMAPT) in vivo in xenotrapianti di cellule di carcinoma mammario MDA-MB231
2014
Obiettivo degli studi condotti in questa tesi è stato quello di valutare l’efficacia del Partenolide in vivo in xenotrapianti ottenuti da cellule di carcinoma mammario triplo negativo MDA-MB231 in topi immunodeficienti. Lo studio è stato condotto impiegando il dimetilamino-partenolide (DMAPT), un analogo del partenolide più solubile. I risultati delle ricerche hanno dimostrato che la somministrazione di DMAPT a topi immunodeficienti portatori di xenotrapianti di cellule MDA-MB231 determina una significativa inibizione della crescita dei tumori e un incremento della sopravvivenza degli animali. Analisi immunoistochimiche condotte su preparati istologici ottenuti dai tumori hanno anche dimost…
Analysis of the Potential of an Increase in Yeast Output Resulting from the Application of Additional Process Wastewater in the Evaporator Station
2019
This paper reports the results of an analysis of process wastewater streams in the context of an increase in yeast production. This research is based on the analysis of data from the biggest yeast factory in Europe. The research presented in this paper involves the analysis of the influence of direction of additional wastewater into the evaporator station on yeast production. In the process wastewater, nitrogen is mainly present in organic forms. The analysis reported in this paper involves the concentration of total nitrogen in wastewater streams, as it is the main parameter applied to determine the amount of wastewater that can be applied in agricultural fields. Directing additional waste…