bluuebunny/crossref_metadata_2025_split huggingface dataset:
The pathological autopsy of coronavirus disease 2019 (COVID-2019) in China: a review
Authors: Zhou Baoyong , Zhao Wei , Feng Ruixi , Zhang Xiaohui , Li Xuemei , Zhou Yang , Peng Li , Li Yixin , Zhang Jinyan , Luo Jing , Li Lingyu , Wu Jingxian , Yang Changhong , Wang Meijiao , Zhao Yong , Wang Kejian , Yu Huarong , Peng Qiling , Jiang Ning 
Published: June 2020

ABSTRACTThe coronavirus disease 2019 (COVID-2019) that emerged in Wuhan, China, has rapidly spread to many countries across all six WHO regions. However, its pathobiology remains incompletely understood and many efforts are underway to study it worldwide. To clarify its pathogenesis to some extent, it will inevitably require lots of COVID-2019-associated pathological autopsies. Pathologists from all over the world have raised concerns with pathological autopsy relating to COVID-2019. The issue of whether a person died from COVID-2019 infection or not is always an ambiguous problem in some cases, and ongoing epidemiology from China may shed light on it. This review retrospectively summarizes the research status of pathological autopsy for COVID-2019 deaths in China, which will be important for the cause of death, prevention, control and clinical strategies of COVID-2019. Moreover, it points out several challenges at autopsy. We believe pathological studies from China enable to correlate clinical symptoms and pathological features of COVID-2019 for doctors and provide an insight into COVID-2019 disease.
Testing an individual tree wind damage risk model in a naturally regenerated balsam fir stand: potential impact of thinning on the level of risk
Authors: Duperat Marine , Gardiner Barry , Ruel Jean-Claude 
Published: June 2020

Abstract
Widely distributed in Quebec, balsam fir (Abies balsamea (L.) Mill.) is highly vulnerable to wind damage. Recently, there has been a trend in forest management to increase the use of partial cuttings in naturally regenerating stands, leaving the remnant trees at increased risk of wind damage. In order to limit wind damage after partial cuttings, it is therefore important to find silvicultural practices that minimize the risk of wind damage in these fir stands. Our main objective was to find balsam fir-specific values of parameters to integrate into the wind risk model ForestGALES, in order to simulate the impact of different types of commercial thinning on wind damage risk, and to determine which practice potentially minimizes the risk in a naturally regenerated stand. An anemometer placed at canopy height and strain gauges attached to the trunks of balsam firs allowed us to measure the wind-induced bending moments experienced by a sample of balsam fir trees. This enabled the calculation of the turning moment coefficients specific to each of the trees in order to compare them with the ForestGALES model predictions and to adapt the model for balsam fir stands. The model was tested first with only tree diameter and height as input variables to calculate the turning moment coefficient, then with the addition of a competition index, and finally with the addition of crown dimensions. Wind climate parameters for prediction of the probability of damage were calculated using the Wind Atlas Analysis and Application Program airflow model. The model with the highest accuracy was then used to simulate two types of thinning and determine the impact on wind damage risk for each tree in the stand. According to the model’s predictions, thinning from below has a reduced risk of wind damage compared with thinning from above.
Adhesion and Running Speed of a Tropical Arboreal Ant (Cephalotes atratus) on Rough, Narrow, and Inclined Substrates
Authors: Stark Alyssa Y , Yanoviak Stephen P 
Published: June 2020

SynopsisArboreal ants must navigate variably sized and inclined linear structures across a range of substrate roughness when foraging tens of meters above the ground. To achieve this, arboreal ants use specialized adhesive pads and claws to maintain effective attachment to canopy substrates. Here, we explored the effect of substrate structure, including small and large-scale substrate roughness, substrate diameter, and substrate orientation (inclination), on adhesion and running speed of workers of one common, intermediately-sized, arboreal ant species. Normal (orthogonal) and shear (parallel) adhesive performance varied on sandpaper and natural leaf substrates, particularly at small size scales, but running speed on these substrates remained relatively constant. Running speed also varied minimally when running up and down inclined substrates, except when the substrate was positioned completely vertical. On vertical surfaces, ants ran significantly faster down than up. Ant running speed was slower on relatively narrow substrates. The results of this study show that variation in the physical properties of tree surfaces differentially affects arboreal ant adhesive and locomotor performance. Specifically, locomotor performance was much more robust to surface roughness than was adhesive performance. The results provide a basis for understanding how performance correlates of functional morphology contribute to determining local ant distributions and foraging decisions in the tropical rainforest canopy.
Integrable Evolutions of Twisted Polygons in Centro-Affine ℝm
Authors: Beffa Gloria Marí , Calini Annalisa 
Published: June 2020

Abstract
We show that discrete $W_m$ lattices are bi-Hamiltonian, using geometric realizations of discretizations of the Adler–Gel’fand–Dikii flows as local evolutions of arc length-parametrized polygons in centro-affine space. We prove the compatibility of two known Hamiltonian structures defined on the space of geometric invariants by lifting them to a pair of pre-symplectic forms on the space of arc length parametrized polygons. The simplicity of the expressions of the pre-symplectic forms makes the proof of compatibility straightforward. We also study their kernels and possible integrable systems associated to the pair.
Association of altitude and urbanization with hypertension and obesity: analysis of the Nepal Demographic and Health Survey 2016
Authors: Mehata Suresh , Shrestha Nipun , Ghimire Saruna , Atkins Emily , Karki Deepak Kumar , Mishra Shiva Raj 
Published: June 2020

Abstract

Background
Nepal's Himalayan range attracts mountaineers, climbers and tourists from all across the globe. Limited recent evidence suggests that exposure to hypoxia at a higher altitude may be a risk factor for hypertension and a protective factor for obesity. The existing urban–rural disparities in Nepal in health and economic resources may be anticipated in the burden of hypertension and obesity, two rapidly growing public health issues, but they remain largely unstudied. Therefore this study aims to assess the association of altitude and urbanization with hypertension and overweight/obesity in Nepal.

Methods
Data on 10 473 participants from a nationally representative survey, the 2016 Nepal Demographic and Health Survey (NDHS), was used. The NDHS assessed/measured blood pressure, height, weight, urbanization and the altitude of participants’ households by following standard procedures. Logistic and linear regression models were used to study the association of altitude (per 100 m increases) and urbanization with hypertension and obesity, or their continuous measurements (i.e. systolic and diastolic blood pressure [SBP and DBP, respectively] and body mass index [BMI]).

Results
The prevalence of hypertension, overweight and obesity was 25.6%, 19.6% and 4.8%, respectively. After controlling for covariates, residents of metropolitan cities had a 30% higher prevalence of overweight/obesity (adjusted prevalence ratio 1.30 [95% confidence interval {CI} 1.11 to 1.52]) than their rural counterparts. For altitude, there was a marginally increased odds of hypertension and overweight/obesity with elevation. Consistently, DBP (β = 0.18 [95% CI 0.09 to 0.27]) and BMI increased with altitude (β = 0.11 [95% CI 0.08 to 0.13]).

Conclusion
Urbanization was positively associated with BMI, while altitude showed a marginally positive association with hypertension and overweight/obesity. Given the role of obesity and hypertension in the aetiology of other chronic diseases and subsequently associated mortality and health care costs, residents in urban areas and at higher altitudes may benefit from weight control interventions and BP monitoring, respectively.
The Struggle for Minds and Influence: The Chinese Communist Party's Global Outreach
Authors: Hackenesch Christine , Bader Julia 
Published: June 2020

AbstractThis paper addresses a largely overlooked actor in China's foreign relations, the International Department of the Communist Party of China (ID-CPC). Using publicly available documentation, we systematically analyze the patterns of the CPC's external relations since the early 2000s. Building on an intense travel diplomacy, the ID-CPC maintains a widely stretched network to political elites across the globe. The ID-CPC's engagement is not new; but since Xi Jinping took office, the CPC has bolstered its efforts to reach out to other parties. We find that party relations not only serve as an additional channel to advance China's foreign policy interests. Since President Xi has come to power, party relations also emerged as a key instrument to promote China's vision for reforming the global order. Moreover, China increasingly uses the party channel as a vehicle of authoritarian learning by sharing experiences of its economic modernization and authoritarian one-party regime. The cross-regional analysis of the CPC's engagement with other parties helps us to better understand the role of the CPC in Chinese foreign policy-making, pointing to a new research agenda at the intersection of China's foreign relations, authoritarian diffusion, and transnational relations.
Results From an Evidenced-Based Curriculum Design With Innovative Simulators to Prepare Providers in Caring for Those With Burn Injuries
Authors: Craig Christopher K , Johnson James E , Holmes James H , Kahn Steven A , Carter Jeffery E 
Published: June 2020

Abstract
Burn care and medical education have undergone dramatic changes. Trauma has over seven courses covering fundamentals, whereas burns has one. Our goal was to develop a course to meet the needs of healthcare professionals requiring more advanced burn management training. A survey was distributed to burn physicians, nurses, therapists, administrators, and survivors, to assess the perceived proficiency of those managing adult and pediatric patients. Procedure simulators were developed, and a course was designed and delivered. An after-course survey of participants captured how this course filled identified knowledge gaps. A total of 188 initial surveys were sent to individuals involved in burn care. A diverse pool of 109 individuals participated (58% response rate). Survey results by providers demonstrated the lowest self-rated proficiency scores at managing large pediatric burns and frostbite. Nonphysicians reported low proficiency in developing wound treatment algorithms, performing escharotomies, and aftercare/reintegration. Following rigorous curriculum development, the course was conducted, and after-course surveys noted students’ improved understanding of managing burn injuries, ability to troubleshoot, confidence to manage patients, and their recommending the course to a peer. Providing quality care beyond the initial assessment and stabilization of a burn-injured patient requires additional skills and knowledge. Providers that are uncomfortable or challenged in providing this care may benefit from additional training. Initial data show that a course, such as this one, provides the education necessary to fill the most commonly reported gaps in knowledge and skills. Further work is being invested to develop disaster management skills, assessment components, and further determine course validity
Ambiguity, Monetary Policy and Trend Inflation
Authors: Masolo Riccardo M , Monti Francesca 
Published: June 2020

ABSTRACTAllowing for ambiguity about the behavior of the policymaker in a simple New-Keynesian model gives rise to wedges between long-run inflation expectations, trend inflation, and the inflation target. The degree of ambiguity we measure in Blue Chip survey data helps explain the dynamics of long-run inflation expectations and the inflation trend measured in the US data. Ambiguity also has implications for monetary policy. We show that it is optimal for policymakers to lean against the households’ pessimistic expectations, but also document the limits to the extent the adverse effects of ambiguity can be undone.
Cumulative cigarette tar exposure and lung cancer risk among Japanese smokers
Authors: Shimatani Keiichi , Ito Hidemi , Matsuo Keitaro , Tajima Kazuo , Takezaki Toshiro 
Published: June 2020

Abstract

Objective
Tar concentration in cigarette brands is chronologically decreasing in the USA and Japan. However, studies investigating lung cancer risk with cumulative tar exposure in Western and Asian countries are insufficient. To investigate the risk of lung cancer with cumulative cigarette tar exposure, we conducted a case-control study among Japanese current smokers.

Methods
This study used data from the US-Japan lung cancer joint study in 1993–1998. A total of 282 subjects with histologically confirmed lung cancer and 162 hospital and 227 community controls were included in the study, and two control groups were combined. The information regarding tar concentration was obtained from the published documents and additional estimation using the equation of regression. Cumulative tar concentration was calculated by multiplying the annual value of brand-specific tar concentration by years of smoking. The odds ratios and 95% confidence intervals for lung cancer with cumulative tar exposure were estimated using a logistic model.

Results
The odds ratios for lung cancer with both lower (1–59.8 × 105 mg) and higher (&gt;59.8 × 105 mg) total cumulative tar exposure were statistically significant (3.81, 2.23–6.50 and 11.64, 6.56–20.67, respectively) with increasing trend (P &lt; 0.001). The stratification analysis showed higher odds ratios in subjects with higher cumulative tar exposure regardless of inhalation, duration of smoking filtered cigarettes and histological type.

Conclusions
This study showed that cumulative tar exposure is a dose-dependent indicator for lung cancer risk, and low-tar exposure was still associated with increased cancer risk.
Increasing access to care: telehealth during COVID-19
Authors: Hoffman David A 
Published: June 2020

Abstract1
The coronavirus disease 2019 (COVID-19) public health emergency has amplified both the potential value and the challenges with healthcare providers deploying telehealth solutions. As people across the country find ways to stay at home, telehealth preserves an opportunity to obtain necessary healthcare services. Further, telehealth can help individuals avoid COVID-19 infection, free up hospital beds and other resources for those patients most in need, and prevent infected individuals from spreading that infection. Federal and state regulators have recognized this potential of telehealth and have quickly changed a variety of laws and regulations to enable healthcare providers to deploy solutions quickly. These changes can provide lasting benefits for the use of telehealth well after the current crisis. However, to best realize telehealth’s benefits, further legal and regulatory actions are necessary. Specifically, lawmakers and regulators should focus on six areas: reimbursement, privacy/cybersecurity, liability, licensure, technology access, and artificial intelligence.
Street-level bureaucrats under new managerialism: a comparative study of agency cultures and caseworker role identities in two welfare state bureaucracies
Authors: Jacobsson Kerstin , Wallinder Ylva , Seing Ida 
Published: June 2020

Abstract
Officials in welfare state bureaucracies face the challenge of negotiating their role identities in the context of changeable organizational priorities and managerial styles. Previous studies have found that the professional values may mediate top-down demands and enable the preservation of professional autonomy also under public management reforms. But how do street-level bureaucrats who lack a common professional or occupational training respond to shifting organizational demands? Based on comparative ethnography, the present article investigates how caseworkers’ role identities are conceived and practised in two of the largest state bureaucracies in Sweden, the Social Insurance Agency (SIA) and the Public Employment Service (PES). The article identifies two radically different agency cultures, resulting in rather opposite caseworker role identities. These role identities affect how front-line staff respond to organizational demands, either by focusing externally on client-related outcomes (PES) or internally on organizational output (SIA). The analysis suggests that agency culture may shape caseworker responses to governance in patterned ways, also in the absence of joint professional training or strong occupational communities.
Repeated Noise Exposure Does Not Reach Hazardous Levels During Total Joint Arthroplasty
Authors: Slaven Sean E , Wheatley Benjamin M , Christensen Daniel L , Saxena Sameer K , McGill Robert J 
Published: June 2020

Abstract

Introduction
Noise exposure is an occupational health concern for certain professions, especially military servicemembers and those using power tools on a regular basis. The purpose of this study was to quantify noise exposure during total hip arthroplasty (THA) and total knee arthroplasty (TKA) cases compared to the recommended standard for occupational noise exposure.

Materials and Methods
A sound level meter was used to record cumulative and peak noise exposure levels in 10 primary THA and 10 primary TKA surgeries, as well as 10 arthroscopy cases as controls. Measurements at the distance of the surgeon were taken in all cases. In TKA cases, measurements were taken at 3 feet and 8 feet from the surgeon, to simulate the position of the anesthetist and circulating nurse, respectively.

Results
Time-weighted average was significantly higher in THA (64.7 ± 5.2 dB) and TKA (64.5 ± 6.8 dB) as compared to arthroscopic cases (51.1 ± 7.5 dB, P &lt; 0.001) and higher at the distance of the surgeon (64.5 ± 6.8 dB) compared to the anesthetist (52.9 ± 3.8 dB) and the circulating nurse (54.8 ± 11.2 dB, P = 0.006). However, time-weighted average was below the recommended exposure level of 85 dB for all arthroplasty cases. Peak levels did not differ significantly between surgery type or staff role, and no values above the ceiling limit of 140 dB were recorded. Surgeon’s daily noise dose percentage per case was 1.78% for THA and 2.04% for TKA.

Conclusion
Noise exposure in THA and TKA was higher than arthroscopic cases but did not exceed occupational standards. A daily dose percentage of approximately 2% per case indicates that repeated noise exposure likely does not reach hazardous levels in modern arthroplasty practice.
Strategic Orthopedic Evacuations to the Spanish Role 4 During a Decade (2009–2018)
Authors: Cañas Rafael García , Suay Ricardo Navarro , Moro Carlos Rodríguez , Martín Daniel Aedo , Bariaín Rafael Tamburri , Jiménez Javier Areta 
Published: June 2020

AbstractIntroductionCasualty evacuation is a key point in medical support to military operations, sometimes being necessary to transfer them to National Territory for a definitive diagnosis and treatment. The aim of this work is to analyze the patients evacuated from Areas of Operations to the Orthopedic Surgery and Traumatology Unit of the Spanish Role 4 Medical Treatment Facility in the last 10 years.Material and MethodsA cross-sectional, descriptive, and retrospective study carried out in the period between January 1, 2009 and December 31, 2018. The study population was all personnel evacuated from the Area of Operations to Spanish Role 4. For categorical variables, absolute and relative percent frequencies were used. Spanish military authorization was obtained to perform this study. This study has been approved by the Ethics and Clinical Research Committee of the Defense Central Hospital “Gómez Ulla” (code 12/17).ResultsA total of 520 medical evacuations have been performed on Role 4, of which 227 were on the Orthopedic Surgery and Traumatology Unit. Seven percent of the evacuees were categorized as “combat” casualties. The areas of operations from which more patients have been evacuated were Afghanistan and Lebanon, 30.39% and 19.38%, respectively. The most frequent lesion pattern was the fracture affecting the extremities. Accidents (n = 98, 43.17%) and sport (n = 57; 25.3%) were the main causes of injury. Sixty-seven (29.51%) patients were treated surgically in Role 4. No deaths were recorded among patients in this series.ConclusionEvacuations because of trauma cause more than half of the medical repatriations carried out on the National Territory, of which the majority are due to fractures affecting the limbs, especially the bones of the hand. Sport was the first preventable cause of injury among evacuated patients. Our results are similar to the experience obtained by other allied armed forces. It is a moral imperative and a fundamental necessity for the Spanish military medical services to promote and maintain the Spanish Role 4 Medical Treatment Facility as an indispensable element in medical support for international missions.
Study on the escape timescale of high-energy particles from supernova remnants through thermal X-ray properties
Authors: Suzuki Hiromasa , Bamba Aya , Yamazaki Ryo , Ohira Yutaka 
Published: June 2020

AbstractIn the current decade, GeV/TeV gamma-ray observations of several supernova remnants (SNRs) have implied that accelerated particles are escaping from their acceleration sites. However, when and how they escape from the SNR vicinities are yet to be understood. Recent studies have suggested that the particle escape might develop with thermal plasma ages of the SNRs. We present a systematic study on the time evolution of particle escape using thermal X-ray properties and gamma-ray spectra using 38 SNRs associated with GeV/TeV gamma-ray emissions. We conducted spectral fittings on the gamma-ray spectra using exponential cutoff power-law and broken power-law models to estimate the exponential cutoff or the break energies, both of which are indicators of particle escape. Plots of the gamma-ray cutoff/break energies over the plasma ages show similar tendencies to those predicted by analytical/numerical calculations of particle escape under conditions in which a shock is interacting with thin interstellar medium or clouds. The particle escape timescale is estimated as ∼100 kyr from the decreasing trends of the total energy of the confined protons with the plasma age. The large dispersions of the cutoff/break energies in the data may suggest an intrinsic variety of particle escape environments. This might be the cause of the complicated Galactic cosmic ray spectral shape measured on Earth.