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2.
Trials ; 21(1): 532, 2020 Jun 16.
Artigo em Inglês | MEDLINE | ID: mdl-32546256

RESUMO

BACKGROUND: Perceived high chronic stress is twice as prevalent among German general practitioners (GPs) and non-physician medical staff compared to the general population. The reasons are multi-factorial and include patient, practice, healthcare system and societal factors, such as multi-morbidity, the diversity of populations and innovations in medical care. Also, practice-related factors, like stressful patient-staff interactions, poor process management of waiting times and lack of leadership, play a role. This publicly funded study evaluates the effectiveness of the newly developed participatory, interdisciplinary, and multimodal IMPROVEjob intervention on improving job satisfaction among general practice personnel. The intervention aims at structural stress prevention with regard to working conditions and behavioural stress prevention for leaders and other practice personnel. METHODS: In this cluster-randomised controlled trial, a total of 56 general practices will be assigned to either (1) participation in the IMPROVEjob intervention or (2) the waiting-list control group. The IMPROVEjob intervention consists of the following elements: three workshops, a toolbox with supplemental material and an implementation period with regular contact to so-called IMPROVEjob facilitators. The first workshop, addressing leadership issues, is designed for physicians with leadership responsibilities only. The two subsequent workshops target all GP and non-physician personnel; they address issues of communication (with patients and within the team), self-care and team-care and practice organisation. During the 9-month implementation period, practices will be contacted by IMPROVEjob facilitators to enhance motivation. Additionally, the practices will have access to the toolbox materials online. All participants will complete questionnaires at baseline and follow up. The primary outcome is the change in job satisfaction as measured by the respective scale of the validated German version of the Copenhagen Psychosocial Questionnaire (COPSOQ, version 2018). Secondary outcomes obtained by questionnaires and - qualitatively - by facilitators comprise psychosocial working conditions including leadership aspects, expectations and experiences of the workshops, team and individual efforts and organisational changes. DISCUSSION: It is hypothesised that participation in the IMPROVEjob intervention will improve job satisfaction and thus constitute a structural and behavioural prevention strategy for the promotion of psychological wellbeing of personnel in general practices and prospectively in other small and medium sized enterprises. TRIAL REGISTRATION: German Clinical Trials Register: DRKS00012677. Registered on 16 October 2019. Retrospectively, https://www.drks.de/drks_web/navigate.do?navigationId=trial. HTML&TRIAL_ID = DRKS00012677.


Assuntos
Medicina Geral/organização & administração , Promoção da Saúde/métodos , Satisfação no Emprego , Saúde Mental , Local de Trabalho/psicologia , Análise por Conglomerados , Humanos , Relações Interprofissionais , Liderança , Saúde Ocupacional , Ocupações , Cultura Organizacional , Ensaios Clínicos Controlados Aleatórios como Assunto , Estresse Psicológico , Inquéritos e Questionários
3.
J Synchrotron Radiat ; 16(Pt 5): 658-65, 2009 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-19713640

RESUMO

Crystal diffraction of three membrane proteins (cytochrome bc(1) complex, sarcoplasmic reticulum Ca(2+) ATPase, ADP-ATP carrier) and of one nucleoprotein complex (leucyl tRNA synthetase bound to tRNAleu, leuRS:tRNAleu) was tested at wavelengths near the X-ray K-absorption edge of phosphorus using a new set-up for soft X-ray diffraction at the beamline ID01 of the ESRF. The best result was obtained from crystals of Ca(2+) ATPase [adenosin-5'-(beta,gamma-methylene) triphosphate complex] which diffracted out to 7 A resolution. Data were recorded at a wavelength at which the real resonant scattering factor of phosphorus reaches the extreme value of -20 electron units. The positions of the four triphosphates of the monoclinic unit cell of the ATPase have been obtained from a difference Fourier synthesis based on a limited set of anomalous diffraction data.


Assuntos
Cristalografia por Raios X/métodos , Proteínas de Membrana/química , Fósforo/análise , Análise de Fourier
4.
J Synchrotron Radiat ; 12(Pt 4): 402-9, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-15968115

RESUMO

Phosphorus is an abundant element in living organisms. It is traceable by its X-ray absorption spectrum which shows a strong white line at its K-edge, comparable with that observed for the L(III) edges of rare earth ions. With purple membrane, the variation of the imaginary part of the anomalous dispersion of phosphorus is found to be close to 20 anomalous electron units. Anomalous diffraction experiments at wavelengths near the K-absorption edge of phosphorus confirm this result. The spatial distribution of lipids derived from anomalous diffraction agrees with earlier results from neutron diffraction. Test experiments on single crystals of the carrier protein using 5.76 A photons gave a first low-resolution diffraction pattern. Various techniques of crystal mounting were attempted. In addition, fluorescence measurements on a solution of threonine synthase appear to hint at a change of the phosphate environment of the cofactor upon activator binding.


Assuntos
Translocases Mitocondriais de ADP e ATP/química , Fósforo/análise , Membrana Purpúrea/química , Espectrometria por Raios X/instrumentação , Espectrometria por Raios X/métodos , Difração de Raios X/instrumentação , Difração de Raios X/métodos , Carbono-Oxigênio Liases/análise , Carbono-Oxigênio Liases/química , Desenho de Equipamento , Análise de Falha de Equipamento , Halobacterium/química , Translocases Mitocondriais de ADP e ATP/análise , Conformação Molecular , Fósforo/química , Conformação Proteica
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