bluuebunny/crossref_metadata_2025_split huggingface dataset:
The transport properties of Cl-decorated arsenene controlled by electric field
Authors: Li Bowen , Zhu Lin , Wu Chunyan , Cheng Huanyu , Yao Kailun 
Published: September 2020

Abstract
The large contact resistance is an insurmountable problem for the Schottky contact between the semiconducting two-dimensional channel material and the metal electrode. One solution to the Schottky contact issue is to decrease the contact resistance. Here, by using the first-principles calculations combined with the non-equilibrium Green’s function technique, we find that when monolayer arsenene is covalently bonded with chlorine adatoms, it can transform from the intrinsic semiconductor to metal, which greatly improves its conductivity. Moreover, in the double-layer structure, the Cl adatoms can hop from one layer to the other by applying a vertical electric field. Their interlayer translation can turn arsenene and metallic electrodes from Schottky contact to Ohmic contact, then the resistance is greatly reduced, producing significant switching effects. The highest on/off ratio is as large as 638 at zero bias voltage, which can be utilized as nonvolatile high-density memory and logic operation devices based on arsenene homojunction.
Recent trends in nanothermites: Fabrication, characteristics and applications
Authors: Kabra Shruti , Gharde Swaroop , Gore Prakash M , Jain Sunil , Khire Vrushali H , Kandasubramanian Balasubramanian 
Published: September 2020

Abstract
Energetic materials (EMs) are a group of distinctive materials that release an enormous amount of amassed chemical energy in a short time when incited by external mechanical or thermal factors. They comprise of propellants, explosives, and pyrotechnics. Unlike conventional micro-energetic materials, nano energetic materials (nEMs), due to their smaller particle size ranging from 1–100 nm, exhibit higher specific surface area (~10–50 m2 g−1), reduced ignition temperatures from 2350 K to approx.1000 K for particle size from 100 μm to 100 nm respectively, higher energy densities (up to 50 MJ kg−1), burning rates ~30.48 mm s−1 at 6.894 kPa with specific impulses up to 542 s (5320 m s−1), low impact sensitivity (<4–35 J). Such exceptional properties of nano energetic composites, i.e., thermites (a combination of metal-fuel/metal oxide particles), find applications, namely in, munitions, pyrotechnics, energetic micro-electromechanical system (MEMS) chips. This review provides valuable insight into the synthesis methods of nano energetic composite systems (e.g., Al/CuO, Al/KMnO4, Al/Fe2O3, Al/SnO2, Silicon-based systems), their characteristic properties, behavior under certain conditions and applications. Furthermore, the review converses about the advancements made in the last few decades by many researchers, along with the technological gaps that need to be addressed for futuristic applications.
Receptivity and Readiness for Cultural Competence Training Amongst the Social Workers in Hong Kong
Authors: Lee Vincent W P , Lai Daniel W L , Ruan Yong-Xin 
Published: September 2020

Abstract
This research examined understandings of cultural competence of social workers in Hong Kong, their needs and challenges in serving culturally diverse groups, and their willingness and receptivity to receive cultural competence training by using constructivist grounded theory. Individual qualitative interviews were conducted with thirteen frontline and managerial practitioners and educators in training institutions in the social work profession. Data were analysed by identifying major themes. The findings show that social workers in Hong Kong tend to encounter language barriers and various forms of cultural shocks in serving ethnoculturally diverse clients. The professional code of practice is not sufficient in promoting culturally competent practice and there are institutional barriers to the enhancement of cultural competence of the social services. Mainstream social work units are generally not well prepared to provide services to non-Chinese communities. In response to these obstacles, professional training should provide future Hong Kong social workers with opportunities to interact with ethnoculturally diverse communities through service-learning. To tackle institutional racism, leaders should have cultural awareness and promote culturally inclusive practices. Inclusion of staff members from diverse cultural backgrounds would increase the capacity of the organisations to better serve clients of diverse needs. Anti-racism training should be made as an essential professional development component for social work students, practicum students, practitioners and managers.
Dopaminergic imaging and clinical predictors for phenoconversion of REM sleep behaviour disorder
Authors: Arnaldi Dario , Chincarini Andrea , Hu Michele T , Sonka Karel , Boeve Bradley , Miyamoto Tomoyuki , Puligheddu Monica , De Cock Valérie Cochen , Terzaghi Michele , Plazzi Giuseppe , Tachibana Naoko , Morbelli Silvia , Rolinski Michal , Dusek Petr , Lowe Val , Miyamoto Masayuki , Figorilli Michela , Verbizier Delphine de , Bossert Irene , Antelmi Elena , Meli Riccardo , Barber Thomas R , Trnka Jiří , Miyagawa Toji , Serra Alessandra , Pizza Fabio , Bauckneht Matteo , Bradley Kevin M , Zogala David , McGowan Daniel R , Jordan Lennon , Manni Raffaele , Nobili Flavio 
Published: September 2020

Abstract
This is an international multicentre study aimed at evaluating the combined value of dopaminergic neuroimaging and clinical features in predicting future phenoconversion of idiopathic REM sleep behaviour (iRBD) subjects to overt synucleinopathy. Nine centres sent 123I-FP-CIT-SPECT data of 344 iRBD patients and 256 controls for centralized analysis. 123I-FP-CIT-SPECT images were semiquantified using DaTQUANTTM, obtaining putamen and caudate specific to non-displaceable binding ratios (SBRs). The following clinical variables were also analysed: (i) Movement Disorder Society-sponsored revision of the Unified Parkinson’s Disease Rating Scale, motor section score; (ii) Mini-Mental State Examination score; (iii) constipation; and (iv) hyposmia. Kaplan-Meier survival analysis was performed to estimate conversion risk. Hazard ratios for each variable were calculated with Cox regression. A generalized logistic regression model was applied to identify the best combination of risk factors. Bayesian classifier was used to identify the baseline features predicting phenoconversion to parkinsonism or dementia. After quality check of the data, 263 iRBD patients (67.6 ± 7.3 years, 229 males) and 243 control subjects (67.2 ± 10.1 years, 110 males) were analysed. Fifty-two (20%) patients developed a synucleinopathy after average follow-up of 2 years. The best combination of risk factors was putamen dopaminergic dysfunction of the most affected hemisphere on imaging, defined as the lower value between either putamina (P &lt; 0.000001), constipation, (P &lt; 0.000001) and age over 70 years (P = 0.0002). Combined features obtained from the generalized logistic regression achieved a hazard ratio of 5.71 (95% confidence interval 2.85–11.43). Bayesian classifier suggested that patients with higher Mini-Mental State Examination score and lower caudate SBR asymmetry were more likely to develop parkinsonism, while patients with the opposite pattern were more likely to develop dementia. This study shows that iRBD patients older than 70 with constipation and reduced nigro-putaminal dopaminergic function are at high risk of short-term phenoconversion to an overt synucleinopathy, providing an effective stratification approach for future neuroprotective trials. Moreover, we provide cut-off values for the significant predictors of phenoconversion to be used in single subjects.
A Theory of Equality Before the Law
Authors: Acemoglu Daron , Wolitzky Alexander 
Published: September 2020

AbstractWe propose a simple model of the emergence of equality before the law. A society can support effort (‘cooperation’, ‘prosocial behaviour’) using the carrot of future cooperation or the stick of coercive punishment. Community enforcement relies only on the carrot and involves low coercion, low inequality and low effort. A society in which elites control the means of violence supplements the carrot with the stick, and involves high coercion, high inequality and high effort. In this regime, elites are privileged by both laws and norms: because they are not subject to the same punishments as non-elites, norms are also more favourable for them. Nevertheless, it may be optimal—even from the elites’ perspective—to establish equality before the law, where all agents are subject to the same coercive punishments and norms are more equal. The key mechanism is that equality before the law increases elites’ effort, which improves the carrot of future cooperation and thus encourages even higher effort from non-elites. Equality before the law combines high coercion and low inequality. Factors that make equality before the law more likely to emerge include limits on the extent of coercion, greater marginal returns to effort, increases in the size of the elite group, greater political power for non-elites and, under some additional conditions, lower economic inequality.
Outdoor light at night and risk of coronary heart disease among older adults: a prospective cohort study
Authors: Sun Shengzhi , Cao Wangnan , Ge Yang , Ran Jinjun , Sun Feng , Zeng Qiang , Guo Mengdi , Huang Jianxiang , Lee Ruby Siu-Yin , Tian Linwei , Wellenius Gregory A 
Published: September 2020

Abstract

Aims
We estimated the association between outdoor light at night at the residence and risk of coronary heart disease (CHD) within a prospective cohort of older adults in Hong Kong.

Methods and results
Over a median of 11 years of follow-up, we identified 3772 incident CHD hospitalizations and 1695 CHD deaths. Annual levels of outdoor light at night at participants’ residential addresses were estimated using time-varying satellite data for a composite of persistent night-time illumination at ∼1 km2 scale. We used Cox proportional hazards models to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) of the association between outdoor light at night at the residence and risk of CHD. The association between light at night and incident CHD hospitalization and mortality exhibited a monotonic exposure-response function. An interquartile range (IQR) (60.0 nW/cm2/sr) increase in outdoor light at night was associated with an HR of 1.11 (95% CI: 1.03, 1.18) for CHD hospitalizations and 1.10 (95% CI: 1.00, 1.22) for CHD deaths after adjusting for both individual and area-level risk factors. The association did not vary across strata of hypothesized risk factors.

Conclusion
Among older adults, outdoor light at night at the residence was associated with a higher risk of CHD hospitalizations and deaths. We caution against causal interpretation of these novel findings. Future studies with more detailed information on exposure, individual adaptive behaviours, and potential mediators are warranted to further examine the relationship between light at night and CHD risk.
Extra-pulmonary vein driver mapping and ablation for persistent atrial fibrillation in obese patients
Authors: Hu Xiaofeng , Jiang Weifeng , Wu Shaohui , Xu Kai , Zhang Daoliang , Zhang Yu , Liu Xu , Qin Mu 
Published: September 2020

Abstract

Aims
The aim of this study was to determine whether driver ablation effectively treats persistent atrial fibrillation (AF) in obese patients.

Methods and results
We randomly assigned 124 persistent AF obese patients to two groups, one undergoing conventional ablation (n = 62) and the other undergoing driver ablation (n = 62). Sixty-two non-obese patients with persistent AF undergoing driver ablation served as matched controls. Bipolar electrogram dispersion was analysed for driver mapping. Epicardial adipose tissue (EAT) volume was measured using cardiac computed tomography. Obese patients had a higher proportion of driver regions in the posterior wall (56.5% vs. 32.3%, P = 0.007). Driver complexity, measured as the average number and area of driver regions, was higher in the obese group than in the non-obese group (3.5 ± 1.0 vs. 2.9 ± 0.9, P &lt; 0.001; 15.5% ± 4.2% vs. 9.8 ± 2.6%, P &lt; 0.001, respectively). Left atrial EAT volume correlated better with the proportion of area of driver regions than did body mass index (BMI) and total EAT (BMI: r2 = 0.250, P &lt; 0.001; total EAT: r2 = 0.379, P &lt; 0.001; and left atrial EAT: r2 = 0.439, P &lt; 0.001). The rate of AF termination was significantly higher in the driver ablation group than in the conventional ablation group (82.9% vs. 22.8%, P &lt; 0.001). During the follow-up period of 16.9 ± 6.5 months, patients in the driver ablation group had significantly better AF-free survival (91.91% vs. 79.0%, log rank test, P = 0.026) and AF/atrial tachycardia-free survival (83.9% vs. 64.5%, log rank test, P = 0.011) than did patients in the conventional ablation group.

Conclusion
Obesity is associated with increased driver complexity. Driver ablation improves long-term outcomes in obese patients with persistent AF.
Challenges for obesity management in a unified health system: the view of health professionals
Authors: Lopes Mariana S , Freitas Patrícia P , Carvalho Maria C R , Ferreira Nathália L , Campos Suellen F , Menezes Mariana C , Lopes Aline C S 
Published: September 2020

Abstract

Background
Obesity is an increasingly prevalent chronic condition. Its multiple causes and the complexity of its treatment pose challenges for health professionals.

Objective
To explore and describe the challenges for obesity management in the Brazilian Unified Health System according to health professionals.

Methods
An exploratory quantitative web-based study, carried out in 2018 with health professionals, developed from the first stage of a national project that aims to examine the management of obesity in Brazil. The questionnaire was self-applied. Invitations to participate in the research were sent by the Ministry of Health, Health Department of Minas Gerais and members of the research group. We collected data on sex, age, professional category, region and level of care. The challenges were investigated using a Likert scale and categorized into structure and work process.

Results
We evaluated 1323 professionals, of which about 45% were dietitians, 90.2% were women, and 83.1% self-reported working in primary health care. The main barriers cited included a high demand for curative and individual assistance, the presence of comorbidities, and the absence or insufficient access to instructional materials, professional qualification and lack of support.

Conclusion
Obesity management is a critical challenge for all professionals. Barriers were related to the work process and structural aspects and reinforce the need to empower health teams. We propose that permanent education activities should be established, as well as the development of instructional materials that are applicable to routine work. Finally, the results may be used to develop policies and strategies to improve obesity management.
Cross-cultural validation and psychometric testing of the counseling center assessment of psychological symptoms: experience of Serbia
Authors: Cvjetkovic Smiljana , Bjegovic-Mikanovic Vesna , Langher Viviana 
Published: September 2020

Summary
Psychological distress in university students represents a rising public health concern. The complexity of this phenomenon calls for a more in-depth scrutiny, in order to address the wide diversity of mental health issues that may arise in this population. The instrument designed for the purpose of measuring the student-specific distress is needed. An appropriate tool is the Counseling Center Assessment of Psychological Symptoms 62 (CCAPS-62), multidimensional scale widely used at many universities. The objective of the present study was to translate, culturally adapt and psychometrically validate CCAPS-62 in Serbian student population. A total of 1326 Belgrade University students were recruited from twelve different faculties. Considering the possible culturally conditioned differences in the quality of distress both exploratory and confirmatory factor analyses were performed. The results of the exploratory factor analysis supported the eight-factor model with the item composition of the factors different to a certain extent from the original version. This measurement model was verified by confirmatory factor analysis. Findings demonstrated good internal consistency for the total scale as well as for the eight subscales applied among Serbian students. Implications are discussed with respect to the cultural context of mental health concerns in student population.
High-throughput multivariable Mendelian randomization analysis prioritizes apolipoprotein B as key lipid risk factor for coronary artery disease
Authors: Zuber Verena , Gill Dipender , Ala-Korpela Mika , Langenberg Claudia , Butterworth Adam , Bottolo Leonardo , Burgess Stephen 
Published: September 2020

AbstractBackgroundGenetic variants can be used to prioritize risk factors as potential therapeutic targets via Mendelian randomization (MR). An agnostic statistical framework using Bayesian model averaging (MR-BMA) can disentangle the causal role of correlated risk factors with shared genetic predictors. Here, our objective is to identify lipoprotein measures as mediators between lipid-associated genetic variants and coronary artery disease (CAD) for the purpose of detecting therapeutic targets for CAD.MethodsAs risk factors we consider 30 lipoprotein measures and metabolites derived from a high-throughput metabolomics study including 24 925 participants. We fit multivariable MR models of genetic associations with CAD estimated in 453 595 participants (including 113 937 cases) regressed on genetic associations with the risk factors. MR-BMA assigns to each combination of risk factors a model score quantifying how well the genetic associations with CAD are explained. Risk factors are ranked by their marginal score and selected using false-discovery rate (FDR) criteria. We perform supplementary and sensitivity analyses varying the dataset for genetic associations with CAD.ResultsIn the main analysis, the top combination of risk factors ranked by the model score contains apolipoprotein B (ApoB) only. ApoB is also the highest ranked risk factor with respect to the marginal score (FDR &lt;0.005). Additionally, ApoB is selected in all sensitivity analyses. No other measure of cholesterol or triglyceride is consistently selected otherwise.ConclusionsOur agnostic genetic investigation prioritizes ApoB across all datasets considered, suggesting that ApoB, representing the total number of hepatic-derived lipoprotein particles, is the primary lipid determinant of CAD.
Effectiveness of doxycycline 100 mg twice daily for 7 days and azithromycin 1 g single dose for the treatment of rectalChlamydia trachomatisinfection among men who have sex with men
Authors: Mizushima Daisuke , Takano Misao , Uemura Haruka , Yanagawa Yasuaki , Aoki Takahiro , Watanabe Koji , Gatanaga Hiroyuki , Kikuchi Yoshimi , Oka Shinichi 
Published: September 2020

AbstractObjectivesTo compare the effectiveness of doxycycline 100 mg twice daily for 7 days and azithromycin 1 g single dose for the treatment of rectal Chlamydia trachomatis infection among MSM in a real clinical setting.MethodsA prospective study was performed to compare the effectiveness of doxycycline and azithromycin for the treatment of rectal C. trachomatis among MSM in Tokyo, Japan. Subjects diagnosed with rectal C. trachomatis infection were treated and test-of-cure examination (TOC) was performed at least 3 weeks after the treatment. Treatment of rectal C. trachomatis infection was decided prospectively in a time-dependent manner; in the period between January 2017 and October 2018, azithromycin was administered to all subjects, whereas from October 2018 through March 2020, doxycycline was administered to all subjects. Effectiveness of these treatments was calculated by the number of rectal C. trachomatis-negative subjects at TOC divided by the number of subjects treated.ResultsTwo hundred and ninety-six MSM with rectal C. trachomatis infection were treated with azithromycin (80 patients) and doxycycline (216 patients) in a time-dependent manner. Of the 296 MSM, 274 (92.6%) were treated successfully [67 (83.7%, 95% CI = 79.6%–87.9%) in the azithromycin group versus 207 (95.8%, 95% CI = 94.5%–97.2%) in the doxycycline group, P &lt; 0.001]. To evaluate factors associated with treatment failure, we performed logistic regression analysis. In univariate and multivariate analysis, only doxycycline treatment was inversely associated with treatment failure (OR = 0.29, 95% CI = 0.084–0.976, P = 0.046).ConclusionsThe treatment with doxycycline 100 mg twice daily for 7 days was superior to that with azithromycin 1 g single dose for rectal C. trachomatis among MSM in a real-world setting.
Doctors documenting: an ethnographic and informatics approach to understanding attending physician documentation in the pediatric emergency department
Authors: Fouquet Sarah D , Fitzmaurice Laura , Chan Y Raymond , Palmer Evan M 
Published: September 2020

Abstract

Objective
The pediatric emergency department is a highly complex and evolving environment. Despite the fact that physicians spend a majority of their time on documentation, little research has examined the role of documentation in provider workflow. The aim of this study is to examine the task of attending physician documentation workflow using a mixed-methods approach including focused ethnography, informatics, and the Systems Engineering Initiative for Patient Safety (SEIPS) model as a theoretical framework.

Materials and Methods
In a 2-part study, we conducted a hierarchical task analysis of patient flow, followed by a survey of documenting ED providers. The second phase of the study included focused ethnographic observations of ED attendings which included measuring interruptions, time and motion, documentation locations, and qualitative field notes. This was followed by analysis of documentation data from the electronic medical record system.

Results
Overall attending physicians reported low ratings of documentation satisfaction; satisfaction after each shift was associated with busyness and resident completion. Documentation occurred primarily in the provider workrooms, however strategies such as bedside documentation, dictation, and multitasking with residents were observed. Residents interrupted attendings more often but also completed more documentation actions in the electronic medical record.

Discussion
Our findings demonstrate that complex work processes such as documentation, cannot be measured with 1 single data point or statistical analysis but rather a combination of data gathered from observations, surveys, comments, and thematic analyses.

Conclusion
Utilizing a sociotechnical systems framework and a mixed-methods approach, this study provides a holistic picture of documentation workflow. This approach provides a valuable foundation not only for researchers approaching complex healthcare systems but also for hospitals who are considering implementing large health information technology projects.