Dispersive Manipulation of Paired Superconducting Qubits

We combine the ideas of qubit encoding and dispersive dynamics to enable robust and easy quantum information processing (QIP) on paired superconducting charge boxes sharing a common bias lead. We establish a decoherence free subspace on these and introduce universal gates by dispersive interaction with a LC resonator and inductive couplings between the encoded qubits. These gates preserve the code space and only require the established local symmetry and the control of the voltage bias.Comment: 5 pages, incl. 1 figur

Spin-dephasing anisotropy for electrons in a diffusive quasi-1D GaAs wire

We present a numerical study of dephasing of electron spin ensembles in a diffusive quasi-one-dimensional GaAs wire due to the D'yakonov-Perel' spin-dephasing mechanism. For widths of the wire below the spin precession length and for equal strength of Rashba and linear Dresselhaus spin-orbit fields a strong suppression of spin-dephasing is found. This suppression of spin-dephasing shows a strong dependence on the wire orientation with respect to the crystal lattice. The relevance for realistic cases is evaluated by studying how this effect degrades for deviating strength of Rashba and linear Dresselhaus fields, and with the inclusion of the cubic Dresselhaus term

Research of working area development parameters in conditions of deep steep deposit finalizing

Отримано формули розрахунку об’єму запасів корисних копалин в приконтурній та глибинній зоні. Встановлено характер впливу параметрів доробки глибоких крутоспадних родовищ відкритим способом на доцільне положення поточних та проектних контурів кар’єру. Встановлено, що найменший середній коефіцієнт розкриву досягається при мінімальному значенні суми обсягів корисної копалини приконтурної зони лежачого і висячого боків покладу в проектному положенні. Найменший поточний коефіцієнт розкриву досягається при мінімальному значенні суми обсягів корисної копалини приконтурної зони лежачого і висячого боків покладу, а також робочого борту кар'єру в поточному положенні

Personality in anaesthesiologists, a systematic review of the literature

BACKGROUND: As a central part of their job, anaesthesiologists often have to perform demanding tasks under high-stakes conditions. Yet, some anaesthesiologists seem better able to deal with the demands of the profession than others. OBJECTIVES: This review aims to answer the following questions. What are the necessary or desirable qualities of an anaesthesiologist? Which personality traits or characteristics have been found in anaesthesiologists? How does personality relate to job performance and work stress among anaesthesiologists? DESIGN: Systematic review of studies that examined anaesthesiologists' personality or personality characteristics. We performed our synthesis in terms of the five-factor model of personality. DATA SOURCES: The search was conducted in the PubMed, EMBASE and Web of Science databases. Literature was included until December 2020. ELIGIBILITY CRITERIA: We included qualitative and quantitative studies that examined anaesthesiologists' personality; also, we included studies that focused on anaesthesiologists' stress, performance or mental health but only if these topics were examined from the perspective of personality. RESULTS: We included 6 qualitative and 25 quantitative articles. Synthesis of the qualitative articles revealed two classes of desirable technical and nontechnical personality characteristics. Synthesis of the quantitative articles suggested that anaesthesiologists do not essentially differ from other medical specialists. Moreover, our synthesis revealed several personality traits that predict good performance, low stress and good mental health among anaesthesiologists: lower Neuroticism, higher Extraversion, higher Openness and higher Conscientiousness. CONCLUSION: Those personality traits that predict performance, stress or mental health in anaesthesiologists, also predict performance, stress or mental health in other high demand/high stakes environments (both medical and nonmedical). The ideal anaesthesiologist would be lower on Neuroticism, higher on Extraversion and higher on Conscientiousness

Psychological distress, burnout and personality traits in Dutch anaesthesiologists: A survey

BACKGROUND: The practice of anaesthesia comes with stress. If the demands of a stressful job exceed the resources of an individual, that person may develop burnout. Burnout poses a threat to the mental and physical health of the anaesthesiologist and therefore also to patient safety. OBJECTIVES: Individual differences in stress appraisal (perceived demands) are an important factor in the risk of developing burnout. To explore this possible relationship, we assessed the prevalence of psychological distress and burnout in the Dutch anaesthesiologist population and investigated the influence of personality traits. DESIGN: Survey study. SETTING: Data were collected in the Netherlands from July 2012 until December 2012. PARTICIPANTS: We sent electronic surveys to all 1955 practising resident and consultant members of the Dutch Anaesthesia Society. Of these, 655 (33.5%) were returned and could be used for analysis. MAIN OUTCOME MEASURES: Psychological distress, burnout and general personality traits were assessed using validated Dutch versions of the General Health Questionnaire (cut-off point >/=2), the Maslach Burnout Inventory and the Big Five Inventory. Sociodemographic variables and personality traits were entered into regression models as predictors for burnout and psychological distress. RESULTS: Respectively, psychological distress and burnout were prevalent in 39.4 and 18% of all respondents. The prevalence of burnout was significantly different in resident and consultant anaesthesiologists: 11.3% vs. 19.8% (chi 5.4; P < 0.02). The most important personality trait influencing psychological distress and burnout was neuroticism: adjusted odds ratio 6.22 (95% confidence interval 4.35 to 8.90) and 6.40 (95% confidence interval 3.98 to 10.3), respectively. CONCLUSION: The results of this study show that psychological distress and burnout have a high prevalence in residents and consultant anaesthesiologists and that both are strongly related to personality traits, especially the trait of neuroticism. This suggests that strategies to address the problem of burnout would do well to focus on competence in coping skills and staying resilient. Personality traits could be taken into consideration during the selection of residents. In future longitudinal studies the question of how personal and situational factors interact in the development of burnout should be addressed

Work stress and satisfaction in relation to personality profiles in a sample of Dutch anaesthesiologists: A questionnaire survey

BACKGROUND: Working in anaesthesia is stressful, but also satisfying. Work-related stress can have a negative impact on mental health, whereas work-related satisfaction protects against these harmful effects. OBJECTIVE(S): How work stress and satisfaction are experienced may be related to personality. Our aim was to study the relationship between personality and perception of work in a sample of Dutch anaesthesiologists. DESIGN: Questionnaire survey. SETTING: Data were collected in the Netherlands from July 2012 until December 2012. PARTICIPANTS: We sent electronic questionnaires to all 1955 practising resident and consultant members of the Dutch Anaesthesia Society. Of those, 655 (33.5%) were returned and could be used for analysis. MAIN OUTCOME MEASURES: The questionnaires assessed general work-related stress and satisfaction and anaesthesia-specific stress. A factor analysis was performed on the stress and satisfaction questionnaires. Personality traits were assessed using the Big Five Inventory. To identify personality profiles, a cluster analysis was performed on the Big Five Inventory. Scores of the extracted factors contributing to job stress and satisfaction were compared between the profiles we identified. RESULTS: Our analysis extracted six factors concerning general job stress. Of those, the emotionally difficult caseload contributed the most to job stress. The analysis also extracted four factors concerning general job satisfaction. Good relationships with patients and their families and being appreciated by colleagues contributed the most to satisfaction. The cluster analysis resulted in two distinct personality profiles: a distressed profile (n = 215) and a resilient profile (n = 440). General and anaesthesia-specific job stress was significantly higher and job satisfaction was significantly lower in the distressed profile, compared with the resilient profile. Experience of the emotionally difficult caseload did not differ between the two profiles CONCLUSION: Personality profiles were found to be related to anaesthesiologists' experience of work-related stress and satisfaction. One-third of the anaesthesiologists in our sample were categorised as distressed and are at risk of developing work-related mental health problems