87 research outputs found

    Ethical leadership and follower voice and performance: the role of follower identifications and entity morality beliefs

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    Previous studies have investigated a number of psychological mechanisms that mediate the relationships between ethical leaderships and follower outcomes. Follower organizational identification has been found to mediate the relationship between ethical leadership and follower job performance. In this research, we incorporate a second distinct and theoretically important type of social identification process, relational identification with the leader, and examine their mediating effects on follower performance and voice outcomes. Further, we bring the implicit theory of morality to the behavioral ethics literature and examine follower morality beliefs as a moderator. Using a Romanian sample, we found that ethical leadership has an indirect effect on follower job performance and voice (through the mediating mechanisms of both organizational and relational identifications) and that these relationships are stronger for followers who held the implicit theory that a person’s moral character is fixed. Theoretical and practical implications are discussed

    Impact of opioid-free analgesia on pain severity and patient satisfaction after discharge from surgery: multispecialty, prospective cohort study in 25 countries

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    Background: Balancing opioid stewardship and the need for adequate analgesia following discharge after surgery is challenging. This study aimed to compare the outcomes for patients discharged with opioid versus opioid-free analgesia after common surgical procedures.Methods: This international, multicentre, prospective cohort study collected data from patients undergoing common acute and elective general surgical, urological, gynaecological, and orthopaedic procedures. The primary outcomes were patient-reported time in severe pain measured on a numerical analogue scale from 0 to 100% and patient-reported satisfaction with pain relief during the first week following discharge. Data were collected by in-hospital chart review and patient telephone interview 1 week after discharge.Results: The study recruited 4273 patients from 144 centres in 25 countries; 1311 patients (30.7%) were prescribed opioid analgesia at discharge. Patients reported being in severe pain for 10 (i.q.r. 1-30)% of the first week after discharge and rated satisfaction with analgesia as 90 (i.q.r. 80-100) of 100. After adjustment for confounders, opioid analgesia on discharge was independently associated with increased pain severity (risk ratio 1.52, 95% c.i. 1.31 to 1.76; P < 0.001) and re-presentation to healthcare providers owing to side-effects of medication (OR 2.38, 95% c.i. 1.36 to 4.17; P = 0.004), but not with satisfaction with analgesia (beta coefficient 0.92, 95% c.i. -1.52 to 3.36; P = 0.468) compared with opioid-free analgesia. Although opioid prescribing varied greatly between high-income and low- and middle-income countries, patient-reported outcomes did not.Conclusion: Opioid analgesia prescription on surgical discharge is associated with a higher risk of re-presentation owing to side-effects of medication and increased patient-reported pain, but not with changes in patient-reported satisfaction. Opioid-free discharge analgesia should be adopted routinely

    Search for eccentric black hole coalescences during the third observing run of LIGO and Virgo

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    Despite the growing number of confident binary black hole coalescences observed through gravitational waves so far, the astrophysical origin of these binaries remains uncertain. Orbital eccentricity is one of the clearest tracers of binary formation channels. Identifying binary eccentricity, however, remains challenging due to the limited availability of gravitational waveforms that include effects of eccentricity. Here, we present observational results for a waveform-independent search sensitive to eccentric black hole coalescences, covering the third observing run (O3) of the LIGO and Virgo detectors. We identified no new high-significance candidates beyond those that were already identified with searches focusing on quasi-circular binaries. We determine the sensitivity of our search to high-mass (total mass M>70 M⊙) binaries covering eccentricities up to 0.3 at 15 Hz orbital frequency, and use this to compare model predictions to search results. Assuming all detections are indeed quasi-circular, for our fiducial population model, we place an upper limit for the merger rate density of high-mass binaries with eccentricities 0<e≀0.3 at 0.33 Gpc−3 yr−1 at 90\% confidence level

    Observation of gravitational waves from the coalescence of a 2.5−4.5 M⊙ compact object and a neutron star

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    Search for gravitational-lensing signatures in the full third observing run of the LIGO-Virgo network

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    Gravitational lensing by massive objects along the line of sight to the source causes distortions of gravitational wave-signals; such distortions may reveal information about fundamental physics, cosmology and astrophysics. In this work, we have extended the search for lensing signatures to all binary black hole events from the third observing run of the LIGO--Virgo network. We search for repeated signals from strong lensing by 1) performing targeted searches for subthreshold signals, 2) calculating the degree of overlap amongst the intrinsic parameters and sky location of pairs of signals, 3) comparing the similarities of the spectrograms amongst pairs of signals, and 4) performing dual-signal Bayesian analysis that takes into account selection effects and astrophysical knowledge. We also search for distortions to the gravitational waveform caused by 1) frequency-independent phase shifts in strongly lensed images, and 2) frequency-dependent modulation of the amplitude and phase due to point masses. None of these searches yields significant evidence for lensing. Finally, we use the non-detection of gravitational-wave lensing to constrain the lensing rate based on the latest merger-rate estimates and the fraction of dark matter composed of compact objects

    Ultralight vector dark matter search using data from the KAGRA O3GK run

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    Among the various candidates for dark matter (DM), ultralight vector DM can be probed by laser interferometric gravitational wave detectors through the measurement of oscillating length changes in the arm cavities. In this context, KAGRA has a unique feature due to differing compositions of its mirrors, enhancing the signal of vector DM in the length change in the auxiliary channels. Here we present the result of a search for U(1)B−L gauge boson DM using the KAGRA data from auxiliary length channels during the first joint observation run together with GEO600. By applying our search pipeline, which takes into account the stochastic nature of ultralight DM, upper bounds on the coupling strength between the U(1)B−L gauge boson and ordinary matter are obtained for a range of DM masses. While our constraints are less stringent than those derived from previous experiments, this study demonstrates the applicability of our method to the lower-mass vector DM search, which is made difficult in this measurement by the short observation time compared to the auto-correlation time scale of DM

    Detecting Emotional Distress from Text

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    Emotional distress, such as depression, has become a significant problem in modern societies. Previous research has proposed machine learning models to automatically detect emotional distress from online social media texts. However, these approaches have not effectively incorporated domain knowledge into state-of-the-art architectures and have not been tested on writing in a more private context. This paper discusses our proposed plan to address these two research gaps. First, we will design and evaluate a deep learning model that incorporates domain knowledge to detect emotional distress from texts. Second, we will collect texts from both social media platforms and private diary writing to study the differences in the classification performance of the proposed model on these texts

    When Family Interrupted Work: The Implications of Gendered Role Perception in the Face of COVID-19

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    During the COVID‐19 pandemic, many individuals are confronted with the work‐from‐home challenge, which often results in work‐family interference. Although prior to COVID‐19, the influence of traditional gender role expectations was shown to be reduced over time, it is unclear whether and how such traditional worldview might influence judgments towards men and women when family interrupted work under the threat of COVID‐19. This study presented and tested competing predictions derived from the gender role theory. An experimental study with 971 adults showed that during (vs. before) COVID‐19 pandemic, men were evaluated more negatively when they experienced family interruption to work compared with women. The negative evaluation further led to more punitive reactions and less support at work. The results suggested that gender role expectations reinforced the traditional status quo by punishing status‐quo‐breakers under the threat of COVID‐19
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