A processing centre for the CNES CE-GPS experimentation

CNES is involved in a GPS (Global Positioning System) geostationary overlay experimentation. The purpose of this experimentation is to test various new techniques in order to select the optimal station synchronization method, as well as the geostationary spacecraft orbitography method. These new techniques are needed to develop the Ranging GPS Integrity Channel services. The CNES experimentation includes three transmitting/receiving ground stations (manufactured by IN-SNEC), one INMARSAT 2 C/L band transponder and a processing center named STE (Station de Traitements de l'Experimentation). Not all the techniques to be tested are implemented, but the experimental system has to include several functions; part of the future system simulation functions, such as a servo-loop function, and in particular a data collection function providing for rapid monitoring of system operation, analysis of existing ground station processes, and several weeks of data coverage for other scientific studies. This paper discusses system architecture and some criteria used in its design, as well as the monitoring function, the approach used to develop a low-cost and short-life processing center in collaboration with a CNES sub-contractor (ATTDATAID), and some results

Thermal regime of the grape (<em>Vitis vinifera</em> L. Syrah grapes) during maturation. Influence of the berry coloration, the compactness degree of the grape and the local wind regime

The authors present the results of an experimentation realized on Chiraz grapes with the aims to study the thermal regime supported by berries and clusters during their maturation and to determine the main factors responsible for the observed modifications. The results show that two important factors explain these modifications, firstly, the albedo of the berries which is strongly decreasing as a consequence of the light absorption and subsequent coloration of the berries during the veraison phase and secondly, the increase of the cluster compactness. Two thermic parameters allowing the characterization of the thermal regime of the Chiraz grapes have been defined: - the thermal sensibility of the clusters towards the wind velocity directly depending on the compactness or aeration degrees of the grapes, and - the maximum capacity to accumulate heat which is also linked to cluster compactness but essentially depending on the berries coloration. The effect of the compactness or aeration degree of the grape on the thermal regime in relation with the local wind regime has also been described. In practice, it would have been better to take attention to any cultural intervention modifying the wind regime around the vine stocks or surrounding the parcel. A photographic method for estimating the compactness degree of the grape clusters on the vine stock has been used

How things changed during the COVID-19 pandemic’s first year ::a longitudinal, mixed-methods study of organisational resilience processes among healthcare workers

COVID-19 had a huge impact on healthcare systems globally. Institutions, care teams and individuals made considerable efforts to adapt their practices. The present longitudinal, mixed-methods study examined a large sample of healthcare institution employees in Switzerland. Organisational resilience processes were assessed by identifying problematic real-world situations and evaluating how they were managed during three phases of the pandemic’s first year. Results highlighted differences between resilience processes across the different types of problematic situations encountered by healthcare workers. Four configurations of organisational resilience were identified depending on teams’ performance and ability to adapt over time: “learning from mistakes”, “effective development”, “new standards” and “hindered resilience”. Resilience trajectories differed depending on professional categories, hierarchical status and the problematic situation’s perceived severity. Factors promoting or impairing organisational resilience are discussed. Findings highlighted the importance of individuals’, teams’ and institutions’ meso- and micro-level adaptations and macro-level actors’ structural actions

Adapting to the unexpected ::problematic work situations and resilience strategies in healthcare institutions during the COVID-19 pandemic’s first wave

The COVID-19 pandemic’s first wave required considerable adaptation efforts on the part of healthcare workers. The literature on resilient healthcare describes how the collective regulation strategies implemented by frontline employees make essential contributions to institutions’ abilities to cope with major crises. The present mixed-methodology study was thus conducted among a large sample of employees in a variety of Swiss healthcare institutions and focused on problematic real-world situations experienced by them and their managers during the pandemic’s first wave. It highlighted the anticipatory and adaptive strategies implemented by institutions, teams and individuals. The most frequently cited problematic situations involved organisational changes, interpersonal conflicts and workloads. In addition to the numerous top-down measures implemented by institutions, respondents also identified personal or team regulation strategies such as increasing staff flexibility, prioritising tasks, interprofessional collaboration, peer support or creating new communication channels to families. The present findings underlined the importance of taking greater account of healthcare support staff and strengthening managerial capacity to support interprofessional teams including those support staff

How can we help healthcare workers during a catastrophic event such as the COVID-19 pandemic?

Healthcare workers (HCWs) have significantly suffered during the COVID-19 pandemic, reporting a high prevalence of anxiety, depression and post-traumatic stress disorder (PTSD). We investigated with this survey whether HCWs benefitted from supportive measures put in place by hospitals and how these measures were perceived. This cross-sectional survey, which was conducted during the first wave of COVID-19 at the Geneva University Hospitals, Switzerland, between May and July 2021, collected information on the use and perception of practical and mental health support measures provided by the hospital. In total, 3461 HCWs participated in the study. Regarding the practical support measures, 2896 (84%) participants found them useful, and 2650 (76%) used them. Regarding the mental health support measures, 3149 (90%) participants found useful to have the possibility of attending hypnosis sessions, 3163 (91%) to have a psychologist within hospital units, 3202 (93%) to have a medical nursing psychiatric permanence available seven days a week, and 3171 (92%) to have a hotline available seven days a week. In total, 436 (13%) HCWs used at least one of the available mental health support measures. During the COVID-19 pandemic, the support measures were valued by HCWs. Given the high prevalence of psychiatric issues among HCWs, these measures seem necessary and are likely to have alleviated the suffering of HCWs