Introduction This study aimed to assess (1) the prevalence of burnout risk among nurses working i... more Introduction This study aimed to assess (1) the prevalence of burnout risk among nurses working in intensive care units and emergency department before and during the coronavirus disease 2019 pandemic and (2) the individual and work-related associated factors. Methods Data were collected as part of a cross-sectional study on intensive care unit and emergency nurses in Belgium using 2 self-administered online questionnaires distributed just before the pandemic (January 2020, N = 422) and during the first peak of the pandemic (April 2020, N = 1616). Burnout was assessed with the Maslach Burnout Inventory scale. Results The overall prevalence of burnout risk was higher among emergency nurses than intensive care unit nurses but was not significantly different after the coronavirus disease 2019 pandemic (from 69.8% to 70.7%, χ² = 0.15, P = .68), whereas it increased significantly among intensive care unit nurses (from 51.2% to 66.7%, χ² = 23.64, P < .003). During the pandemic, changes in workload and the lack of personal protective equipment were significantly associated with a higher likelihood of burnout risk, whereas social support from colleagues and from superiors and management were associated with a lower likelihood of burnout risk. Several determinants of burnout risk were different between intensive care unit and emergency nurses. Conclusion Our findings indicate that nurses in intensive care unit and emergency department were at risk of burnout but their experience during the coronavirus disease 2019 pandemic was quite different. Therefore, it is important to implement specific measures for these 2 groups of nurses to prevent and manage their risk of burnout.
Resume Une etude de microstructure en microscopie electronique par transmission faite sur des sol... more Resume Une etude de microstructure en microscopie electronique par transmission faite sur des solutions solides Ni-6 at.% Ge, sollicitees en traction-compression entre 0,4 et 0,5 T ƒ a la frequence 2,5 Hz et sous une contrainte de ± 100 MPa a montre que: entre 104 et 106 cycles la microstructure passe par une succession de stades; elle n'atteint pas une configuration stationnaire, mais semble plutot suivre une evolution cyclique; une cavitation en volume peut se produire pour des nombres de cycles superieurs a une limite dependant de la temperature et de la frequence. Ces phenomenes ont aussi ete observes dans le nickel pur et une solution solide Ni-4 at.% Si et sont discutes a la lumiere des modeles classiques de production de defauts ponctuels par plasticite.
Background— Current paradigm attributes the low incidence of cardiovascular disorders in Mediterr... more Background— Current paradigm attributes the low incidence of cardiovascular disorders in Mediterranean countries despite a high saturated fat intake, the “French paradox,” to the antioxidant capacity of red wine polyphenols. Conceivably, other antiinflammatory pathways may contribute to at least a similar extent to the atheroprotective activity of these polyphenols. We have investigated whether gallic acid (GA), an abundant red wine polyphenol, modulates the activity of P-selectin, an adhesion molecule that is critically involved in the recruitment of inflammatory cells to the vessel wall and thus in atherosclerosis. Methods and Results— GA potently inhibited the binding of a peptide antagonist (IC 50 , 7.2 μmol/L) and biotin-PAA-Le a -SO 3 H, an established high-affinity ligand, to P-selectin (IC 50 , 85 μmol/L). Under dynamic flow conditions, GA markedly and dose dependently attenuated the rolling of monocytic HL60 cells over P-selectin-transfected Chinese hamster ovary cells (EC ...
Even rare fractures of the orbital roof may lead to multiple complications and sequelae. After re... more Even rare fractures of the orbital roof may lead to multiple complications and sequelae. After reviewing 37 patients, the authors found a classification into three groups of these fractures useful. They derived this classification from that of Stranc.The importance of a proper diagnosis and initial assessment is pointed out, with special attention to the fracture site and possible associated lesions (eyeball, dura, brain).In the authors' opinion, surgical treatment when indicated, should be based on this classification and strictly applied according to the surgical principles described, in order to avoid, if possible, sequelae that are otherwise very difficult to cope with.
... It is the &#x27;stairs&#x27; sign of Paul Bonnet. (2) An abnormal position of the hea... more ... It is the &#x27;stairs&#x27; sign of Paul Bonnet. (2) An abnormal position of the head - namely, a contralateral rotation, with a pulling down of the chin and even a tilting of the head onto the opposite shoulder. 92 Page 3. ... SACHS-RETCHER, 0.: Renforcernent du muscle grand oblique. ...
Perimetry, Electro-Oculography, Electroretinography and visual evoked potentials practiced in Oph... more Perimetry, Electro-Oculography, Electroretinography and visual evoked potentials practiced in Ophthalmology, are put under: contingencies, bound to the patient and the equipment itself. In Perimetry difficulties are proportional with the respect between patient and material. In visual Electro-Physiology, the identical problems are seen often amplified by the difficulties due to the setting of the data compilation. It is fitting to opt for a protocol giving in a minimum of time, a maximum of reproducible data of the state of visual functions. A good knowledge of Electro-Physiologie bases will enable the user to avoid lots of traps. The choice of material must come into considerations for the type price reliability and easy utilization. The ERG must be realized taking into account as best as possible, the problem bound to the patients' age. The recording of EOG enables, coupled with the ERG, a functional assessment and a prognosis in the Retinal disease. This examination is sensitive to mechanical, physical and physic factors. Whatever the choice VEP flash or pattern, the patients' age, child or adult, will be determinant in the choice of the method and analysis results. The VEP answer is lost in a wave of interfered results. The VEP should be amplified and taken out from this background sound, while keeping its maximal structure.
Introduction This study aimed to assess (1) the prevalence of burnout risk among nurses working i... more Introduction This study aimed to assess (1) the prevalence of burnout risk among nurses working in intensive care units and emergency department before and during the coronavirus disease 2019 pandemic and (2) the individual and work-related associated factors. Methods Data were collected as part of a cross-sectional study on intensive care unit and emergency nurses in Belgium using 2 self-administered online questionnaires distributed just before the pandemic (January 2020, N = 422) and during the first peak of the pandemic (April 2020, N = 1616). Burnout was assessed with the Maslach Burnout Inventory scale. Results The overall prevalence of burnout risk was higher among emergency nurses than intensive care unit nurses but was not significantly different after the coronavirus disease 2019 pandemic (from 69.8% to 70.7%, χ² = 0.15, P = .68), whereas it increased significantly among intensive care unit nurses (from 51.2% to 66.7%, χ² = 23.64, P < .003). During the pandemic, changes in workload and the lack of personal protective equipment were significantly associated with a higher likelihood of burnout risk, whereas social support from colleagues and from superiors and management were associated with a lower likelihood of burnout risk. Several determinants of burnout risk were different between intensive care unit and emergency nurses. Conclusion Our findings indicate that nurses in intensive care unit and emergency department were at risk of burnout but their experience during the coronavirus disease 2019 pandemic was quite different. Therefore, it is important to implement specific measures for these 2 groups of nurses to prevent and manage their risk of burnout.
Resume Une etude de microstructure en microscopie electronique par transmission faite sur des sol... more Resume Une etude de microstructure en microscopie electronique par transmission faite sur des solutions solides Ni-6 at.% Ge, sollicitees en traction-compression entre 0,4 et 0,5 T ƒ a la frequence 2,5 Hz et sous une contrainte de ± 100 MPa a montre que: entre 104 et 106 cycles la microstructure passe par une succession de stades; elle n'atteint pas une configuration stationnaire, mais semble plutot suivre une evolution cyclique; une cavitation en volume peut se produire pour des nombres de cycles superieurs a une limite dependant de la temperature et de la frequence. Ces phenomenes ont aussi ete observes dans le nickel pur et une solution solide Ni-4 at.% Si et sont discutes a la lumiere des modeles classiques de production de defauts ponctuels par plasticite.
Background— Current paradigm attributes the low incidence of cardiovascular disorders in Mediterr... more Background— Current paradigm attributes the low incidence of cardiovascular disorders in Mediterranean countries despite a high saturated fat intake, the “French paradox,” to the antioxidant capacity of red wine polyphenols. Conceivably, other antiinflammatory pathways may contribute to at least a similar extent to the atheroprotective activity of these polyphenols. We have investigated whether gallic acid (GA), an abundant red wine polyphenol, modulates the activity of P-selectin, an adhesion molecule that is critically involved in the recruitment of inflammatory cells to the vessel wall and thus in atherosclerosis. Methods and Results— GA potently inhibited the binding of a peptide antagonist (IC 50 , 7.2 μmol/L) and biotin-PAA-Le a -SO 3 H, an established high-affinity ligand, to P-selectin (IC 50 , 85 μmol/L). Under dynamic flow conditions, GA markedly and dose dependently attenuated the rolling of monocytic HL60 cells over P-selectin-transfected Chinese hamster ovary cells (EC ...
Even rare fractures of the orbital roof may lead to multiple complications and sequelae. After re... more Even rare fractures of the orbital roof may lead to multiple complications and sequelae. After reviewing 37 patients, the authors found a classification into three groups of these fractures useful. They derived this classification from that of Stranc.The importance of a proper diagnosis and initial assessment is pointed out, with special attention to the fracture site and possible associated lesions (eyeball, dura, brain).In the authors' opinion, surgical treatment when indicated, should be based on this classification and strictly applied according to the surgical principles described, in order to avoid, if possible, sequelae that are otherwise very difficult to cope with.
... It is the &#x27;stairs&#x27; sign of Paul Bonnet. (2) An abnormal position of the hea... more ... It is the &#x27;stairs&#x27; sign of Paul Bonnet. (2) An abnormal position of the head - namely, a contralateral rotation, with a pulling down of the chin and even a tilting of the head onto the opposite shoulder. 92 Page 3. ... SACHS-RETCHER, 0.: Renforcernent du muscle grand oblique. ...
Perimetry, Electro-Oculography, Electroretinography and visual evoked potentials practiced in Oph... more Perimetry, Electro-Oculography, Electroretinography and visual evoked potentials practiced in Ophthalmology, are put under: contingencies, bound to the patient and the equipment itself. In Perimetry difficulties are proportional with the respect between patient and material. In visual Electro-Physiology, the identical problems are seen often amplified by the difficulties due to the setting of the data compilation. It is fitting to opt for a protocol giving in a minimum of time, a maximum of reproducible data of the state of visual functions. A good knowledge of Electro-Physiologie bases will enable the user to avoid lots of traps. The choice of material must come into considerations for the type price reliability and easy utilization. The ERG must be realized taking into account as best as possible, the problem bound to the patients' age. The recording of EOG enables, coupled with the ERG, a functional assessment and a prognosis in the Retinal disease. This examination is sensitive to mechanical, physical and physic factors. Whatever the choice VEP flash or pattern, the patients' age, child or adult, will be determinant in the choice of the method and analysis results. The VEP answer is lost in a wave of interfered results. The VEP should be amplified and taken out from this background sound, while keeping its maximal structure.
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Papers by B. Arnaud