bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nativist policy: the comparative effects of Trumpian politics on migration decisions
Authors: Duch Raymond M , Laroze Denise , Reinprecht Constantin , Robinson Thomas S 
Published: September 2020

AbstractFirms in the USA rely on highly skilled immigrants, particularly in the science and engineering sectors. Yet, the recent politics of immigration marks a substantial change to US immigration policy. We implement a conjoint experiment that isolates the causal effect of nativist, anti-immigrant, pronouncements on where skilled potential-migrants choose to immigrate to. While these policies have a significantly negative effect on the destination choices of Chilean and UK student subjects, they have little effect on the choices of Indian and Chinese student subjects. These results are confirmed through an unobtrusive test of subjects’ general immigration destination preferences. Moreover, there is some evidence that the negative effect of these nativist policies are particularly salient for those who self-identify with the Left.
Late Mississippian limestone sedimentary environment in southern Pembrokeshire (Bullslaughter Bay, Wales): evidence of meteoric diagenesis and hypersaline features
Authors: Battiau-Queney Yvonne , Préat Alain , Trentesaux Alain , Recourt Philippe , Bout-Roumazeilles Viviane 
Published: September 2020

AbstractBullslaughter Bay in southern Pembrokeshire, UK, exposes sections of Upper Mississippian limestone strata. In many places, the rock suffered an isovolumetric alteration during a period of sea-level oscillations. We used multiple approaches to study the weathered rocks, combining sedimentological, petrographic and isotopic compositions (δ18O and δ13C values). Two main microfacies are recognized: (i) packstones/grainstones, characteristic of an open marine shallow subtidal/intertidal environment, with a high degree of agitation, slightly elevated salinity and temporary subaerial exposure; and (ii) mudstones/wackestones in a lagoonal setting and intertidal or supratidal environments, with a pedogenetic influence. In both cases, a complex diagenetic story, which started early in a meteoric environment, induced a strong alteration producing loose sediments in place of the parent rock. Calcretization, at or near the sediment surface in the vadose zone, was one of the most widespread diagenetic modes. It could be associated with beachrocks. Carbon and oxygen stable isotope analyses from more or less weathered limestones support the petrographic data: they show non-marine values with δ13C ranges of from −2.13 ‰ to 1.75 ‰ and δ18O from −6.05 ‰ to −4.66 ‰. These values are systematically lower than those of the middle Carboniferous seawater. Some periods of low sea level and subaerial exposure allowed gypsum to form. Neoformation of euhedral quartz by probable replacement after sulfate, and halite pseudomorphs after gypsum in a hypersaline environment are documented for the first time in southern Pembrokeshire. The studied weathered limestones present a complex diagenetic evolution related to sea-level oscillations in a range of hot and contrasting seasonal climates.
Ratios of neutrophil-to-lymphocyte and platelet-to-lymphocyte predict all-cause mortality in inpatients with coronavirus disease 2019 (COVID-19): a retrospective cohort study in a single medical centre
Authors: Wang Xue , Li Xincheng , Shang Yu , Wang Junwei , Zhang Xiaona , Su Dongju , Zhao Shuai , Wang Qin , Liu Lei , Li Yupeng , Chen Hong 
Published: September 2020

AbstractThe Coronavirus Disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a public health emergency of international concern. The current study aims to explore whether the neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) are associated with the development of death in patients with COVID-19. A total of 131 patients diagnosed with COVID-19 from 13 February 2020 to 14 March 2020 in a hospital in Wuhan designated for treating COVID-19 were enrolled in the current study. These 131 patients had a median age of 64 years old (interquartile range: 56–71 years old). Furthermore, among these patients, 111 (91.8%) patients were discharged and 12 (9.2%) patients died in the hospital. The pooled analysis revealed that the NLR at admission was significantly elevated for non-survivors, when compared to survivors (P< 0.001). The NLR of 3.338 was associated with all-cause mortality, with a sensitivity of 100.0% and a specificity of 84.0% (area under the curve (AUC): 0.963, 95% confidence interval (CI) 0.911–1.000;P< 0.001). In view of the small number of deaths (n= 12) in the current study, NLR of 2.306 might have potential value for helping clinicians to identify patients with severe COVID-19, with a sensitivity of 100.0% and a specificity of 56.7% (AUC: 0.729, 95% CI 0.563–0.892;P= 0.063). The NLR was significantly associated with the development of death in patients with COVID-19. Hence, NLR is a useful biomarker to predict the all-cause mortality of COVID-19.
Suzerainty, Semi-Sovereignty, and International Legal Hierarchies on China's Borderlands
Authors: ZHU Yuan Yi 
Published: September 2020

AbstractThe concept of semi-sovereignty, a now obsolete category of international entities possessing limited sovereignty, remains hazily understood. However, the historical examination of how semi-sovereignty was defined and practised during the long nineteenth century can provide insights on the interplay between authority and control within the hierarchies of international relations. This paper examines one specific type of semi-sovereignty—namely, suzerainty—which is often used to describe China's traditional authority in Tibet and Mongolia. By examining the events that led to the acceptance of suzerainty as the legal framing for the China-Tibet and China-Mongolia relationships, I argue that suzerainty was a deliberately vague concept that could be used to create liminal international legal spaces to the advantage of Western states, and to mediate between competing claims of political authority. Finally, I point to the importance of semi-sovereignty as an arena of legal contestation between the Western and non-Western members of the “Family of Nations”.
Stuttering-Related Podcasts: Audio-Based Self-Help for People Who Stutter
Authors: Dignazio Lauren E. , Kenny Megan M. , Raj Erik X. , Pelkey Kyle D. 
Published: September 2020

PurposeIt is known that people who stutter (PWS) benefit from self-help experiences, such as attending support groups or conferences. However, limited research has been done to explore the listening of stuttering-related podcasts as a form of self-help for PWS. This study seeks to understand the reasons why PWS listen to stuttering-related podcasts and provide descriptions of their listening experiences.MethodThirty-three PWS who have listened to stuttering-related podcasts were recruited to participate in an online survey that included multiple-choice and open-ended questions. Responses were analyzed and grouped into descriptive themes.ResultsParticipants reported listening to stuttering-related podcasts as a way to gain information and perspective. They also reported experiences that fit themes of empowerment and camaraderie, as a result of listening.ConclusionsStuttering-related podcasts seem to be a positive self-help tool for PWS. Stuttering support group leaders and/or speech-language pathologists may consider introducing their group members or clients who stutter to this type of audio-based self-help experience.
Survival rate of cemented versus cementless tibial component in primary total knee arthroplasty over 5 years of follow-up: comparative study of 109 prostheses
Authors: Pacoret Victor , Kalk Etienne , Labattut Ludovic , Girardot Guillaume , Baulot Emmanuel , Martz Pierre 
Published: September 2020

Introduction: Knee osteoarthritis is the main indication for primary total knee arthroplasty (TKA). It is now accepted that cementless implantation of the femoral component provides equivalent results to cemented one, however, the optimal fixation method of the tibial component remains controversial. The purpose of this study was to compare the survivorship of cemented versus cementless tibial baseplate in primary total knee arthroplasty.Materials and methods: We carried out a retrospective, monocentric study, including 109 TKA (Zimmer®Natural Knee II ultra-congruent mobile-bearing) implanted between 2004 and 2010 for primary osteoarthritis, comparing 2 groups depending on tibial component fixation method, one cemented (n = 68) and one cementless (n = 41). Clinical (Knee Society Rating System (KSS), Hospital for Special Surgery (HSS) scores, range of motion) and radiodiological outcomes were assessed at last follow-up with a minimal follow-up of 5 years.Results: Mean follow-up were 8.14 [5.31–12.7] and 8.06 [5.22–12.02] years, respectively, in cemented and cementless groups. The tibial component survival rate was 100% [95CI: 91.4–100] in the cementless group and 97.1% [95CI: 89.78–99.42] in the cemented group (2 aseptic loosenings) (p = 0.27). Radiolucent lines were present in 31.7% (n = 13) of the cementless and 44.1% (n = 30) of the cemented baseplates (p = 0.2). The postoperative KSS knee score was higher in the cementless group (99 ± 3 vs. 97 ± 7.5;p = 0.02), but there was no significant difference in KSS function, global KSS and HSS scores. Mean range of flexion was 120 ± 10° in the cementless group and 122.5 ± 15° in the cemented group (p = 0.37). No significant differences were found on the radiographic data or on complications.Conclusion: In this study, the survival rate of the tibial component is not influenced by its fixation method at a mean follow-up of 8 years in osteoarthritis, which confirms the reliability of cementless fixation in primary TKA.
Clean environments as a social norm: a field experiment on cigarette littering
Authors: Sagebiel Julian , Karok Lukas , Grund Julian , Rommel Jens 
Published: September 2020

Abstract
Cigarette littering in public spaces is an environmental and aesthetic problem. Broken windows theory posits that visible signs of anti-social behavior such as littering create the perception of a social norm in built environments. Cigarette butts on the ground then encourage people to drop theirs as well. We test this theory on benches of a university campus in a field experiment with two treatments: (1) a clean environment with no cigarette butts on the ground and (2) a dirty environment with 25 cigarette butts on the ground. Our outcome variable is the number of additional cigarette butts on the ground after two hours. We find a small effect of approximately 0.5 butts less per 2-hour period on clean grounds. Increased cleaning efforts can thus reduce littering, but the effect is probably too small to justify additional cleaning costs.
Nanometric behaviour of monocrystalline silicon when single point diamond turned—a molecular dynamics and response surface methodology analysis
Authors: Abdulkadir Lukman N , Bello Ademola A , Bawa Mohammad A , Abioye Adekunle M 
Published: September 2020

Abstract
Hard and brittle materials such as silicon and silicon carbide are widely used in aerospace and integrated circuit. They are often poorly machined owing to non-linearity in machining process and complexities in selecting suitable machining parameters and tool geometry. The experimental difficulty involved in observing nanoscale physical phenomena (i.e. in-process measurement problems, inaccessible contact area of tool and workpiece, and the difficulty of surface analysis) has led to the use of molecular dynamics (MD) and response surface methodology (RSM) to investigate effect of tool edge radius, rake and clearance angles on monocrystalline silicon in this research. The response of subsurface deformation depth (SSD), tool temperature, kinetic friction cutting and thrust forces to tool edge radius, rake and clearance angles showed that SSD increased as the rake angle, edge radius and clearance angle increased while kinetic friction reduced as they increased. The increase in SSD as the clearance angle increased as observed in this study can be associated to the interactive/combined influence of the effects of both edge radius and rake angle.
The personalized antithrombotic management of atrial fibrillation with intermediate thromboembolic risk: a case report
Authors: Hammer Andreas , Schnaubelt Sebastian , Niessner Alexander , Sulzgruber Patrick 
Published: September 2020

Abstract

Background
So far there has been little evidence on the antithrombotic treatment of patients presenting with atrial fibrillation (AF) and a CHA2DS2-VASc score of 1 in men (2 in women). However, a recently published position paper suggests a personalized approach in weighing individual risk factors and considering additional patient characteristics and biomarkers for the decision for or against antithrombotic treatment in this intermediate-risk AF population.

Case summary
A 63-year-old male patient with a CHA2DS2-VASc score of 1 due to hypertension presents with a first episode of paroxysmal AF. The European Society of Cardiology (ESC) guidelines on the management of AF do not recommend a general antithrombotic therapy in those patients. Therefore, the decision for or against the initiation of oral anticoagulation (OAC) in the presented case is based on recent treatment recommendations of the ESC, that aim to guide clinicals through the question whether to anticoagulate or not.

Discussion
Oral anticoagulation in patients presenting with a CHA2DS2-VASc of 1 remains a challenging approach in clinical practice and physicians need to carefully balance the individual benefit of reducing thromboembolic risk with OAC against the potential harm due to an increase in bleeding risk in this patient population. The ESC provided an easily applicable approach for decision-making in patients with AF and a CHA2DS2-VASc score of 1 via consideration of additional risk factors, scoring tools, and established biomarkers. Of note, if an antithrombotic therapy is offered, non-vitamin K antagonist oral anticoagulants should be preferred over vitamin K antagonists based on the beneficial net clinical benefit.
Protecting the most vulnerable during COVID-19 and beyond: a case report on the remote management of heart failure patients with cardiac implantable electronic devices
Authors: Ahmed Fozia Zahir , Crosbie Carol , Kahn Matthew , Motwani Manish 
Published: September 2020

Abstract

Background
Heart failure (HF) patients with cardiac implantable electronic devices (CIEDs) represent an important cohort. They are at increased risk of hospitalization and mortality. We outline how remote-only management strategies, which leverage transmitted health-related data, can be used to optimize care for HF patients with a CIED during the COVID-19 pandemic.

Case summary
An 82-year-old man with HF, stable on medical therapy, underwent cardiac resynchronization therapy implantation in 2016. Modern CIEDs facilitate remote monitoring by providing real-time physiological data (thoracic impedance, heart rate and rhythm, etc.). The ‘Triage Heart Failure Risk Score’ (Triage-HFRS), available on Medtronic CIEDs, integrates several monitored physiological parameters into a risk prediction model classifying patients as low, medium, or high risk of HF events within 30 days. In November 2019, the patient was enrolled in an innovative clinical pathway (Triage-HF Plus) whereby any ‘high’ Triage-HF risk status transmission prompts a phone call-based virtual consultation. A high-risk alert was received via remote transmission on 11 March, triggering a phone call assessment. Upon reporting increasing breathlessness, diuretics were initiated. The prescription was remotely issued and delivered to the patient’s home. This approach circumvented the need for all face-to-face reviews, delivering care in an entirely remote manner.

Discussion
The challenges posed by COVID-19 have prompted us to think differently about how we deliver care for patients, both now and following the pandemic. Contemporary CIEDs facilitate the ability to remotely monitor HF patients by providing rich physiological data that can help identify individuals at elevated risk of decompensation using automated device-generated alerts.
Case report: A fatal case of aortic and mitral valve endocarditis caused by Streptobacillus moniliformis
Authors: Winther Mette , Jensen Hanne Sortsøe , Harder Tarpgaard Irene , Nielsen Hans Linde 
Published: September 2020

Abstract

Background
Infective endocarditis (IE) secondary to rat-bite fever (RBF) is rare but potentially lethal. Rapid diagnosis is of utmost prognostic importance. However, the diagnosis of RBF is challenging because Streptobacillus moniliformis does not grow under conventional culture conditions.

Case summary
A 65-year-old male without previous cardiac history presented with sudden onset of balance problems and facial palsy. For 2 weeks, he had experienced intermittent fever and myalgia. Transoesophageal echocardiography (TOE) revealed severe mitral and aortic valve IE with aortic root abscess. The patient underwent a double biological valve replacement. Blood cultures remained negative after 9 days of incubation. However, sub-cultivation on solid media demonstrated the growth of pleomorphic Gram-negative rods, identified as S. moniliformis. After 4 weeks of antibiotic therapy, he was discharged. One month later, control TOE showed valve excrescences and aortic annular aneurysm. Despite comprehensive surgery, antibiotic treatment, and intensive care, the patient died 1 week after reoperation.

Discussion
A fatal outcome of S. moniliformis IE is rare. The majority of previous cases describe underlying valvular abnormalities or death due to insufficient antimicrobial therapy. Here, the patient had no prehistory of valvular heart disease and despite appropriate antibiotics, the outcome was fatal. Rapid diagnosis of RBF IE has prognostic implications. Identification of S. moniliformis is, however, difficult, because the bacterium is fastidious and does not grow under standard laboratory conditions. Therefore, diagnosis often relies on clinical symptoms or a history of rodent exposure. Close attention to this disease by clinicians, in addition to, dialogue with clinical microbiologists is essential.
FRAGILE: FRench Attitude reGistry in case of ICD LEad replacement
Authors: Alonso Christine , Marquie Christelle , Defaye Pascal , Clementy Nicolas , Mondoly Pierre , Sadoul Nicolas , Boveda Serge , Hidden-Lucet Françoise , Dompnier Antoine , Da Costa Antoine , Marijon Eloi , Leclercq Christophe , Caudron Guillaume , Piot Olivier , DEHARO Jean-Claude ,   “groupe Rythmologie—Stimulation cardiaque de la société française de cardiologie”
Published: September 2020

Abstract

Aims
FRench Attitude reGistry in case of ICD LEad replacement (FRAGILE) registry was set-up to describe the attitude in different French institutions in case of implantable cardioverter-defibrillator (ICD) lead replacement, extraction, or abandonment and to compare outcomes in both groups.

Methods and results
Prospective observational study comparing two attitudes in case of ICD lead replacement, extraction, or abandonment. Primary endpoint describes the attitude in different French centres, collect parameters that may influence the decision. Secondary endpoint compares early and mid-term (2 years) complications in both groups.
Between April 2013 and April 2017, 552 patients were included in 32 centres. 434 (78.6%) were male, mean patient’s age was 60.3 ± 14.4 years. In 56.9% of the cases, the decision was to explant the lead. Patients in the extraction group were younger than in the abandonment group (56.7 ± 14.5 vs. 65 ± 12.7 P &lt; 0.0001) and less likely to have comorbidities (46.5% vs. 58.3% of the patients P = 0.022). The mean lead dwelling time was significantly longer in the abandonment group as compared with the extraction group (7.6 ± 3.9 vs. 5.2 ± 3.1 years, P &lt; 0.0001). There was no statistical difference between both groups concerning early and 2 years complications.

Conclusion
In this registry, the strategy in case of non-infected ICD lead replacement was mainly influenced by patient’s age and comorbidities and lead dwelling time. No difference was observed in outcomes in both strategies.
Periods of Abelian Differentials With Prescribed Singularities
Authors: Le Fils Thomas 
Published: September 2020

Abstract
We give a necessary and sufficient condition for a representation of the fundamental group of a closed surface of genus at least $2$ to ${\mathbb{C}}$ to be the holonomy of a translation surface with a prescribed list of conical singularities. Equivalently, we determine the period maps of abelian differentials with prescribed list of multiplicities of zeros. Our main result was also obtained, independently, by Bainbridge, Johnson, Judge, and Park.
Residual Malaria: Limitations of Current Vector Control Strategies to Eliminate Transmission in Residual Foci
Authors: Rodriguez Mario H 
Published: September 2020

Abstract
The transmission of Plasmodium parasites in residual foci is currently a major roadblock for malaria elimination. Human activities and behavior, along with outdoor biting mosquitoes with opportunistic feeding preferences are the main causes of the inefficacy of the main vector control interventions, long lasting insecticide-impregnated nets and insecticide residual spraying. Several strategies to abate or repel outdoor biting mosquito vectors are currently being researched, but the impact of insecticide resistance on the efficacy of these and current indoor-applied insecticides requires further assessment. Understanding the human, ecological and vector factors, determining transmission in residual foci is necessary for the design and implementation of novel control strategies. Vector control alone is insufficient without adequate epidemiological surveillance and prompt treatment of malaria cases, the participation of endemic communities in prevention and control is required. In addition, malaria control programs should optimize their structure and organization, and their coordination with other government sectors.
Unveiling the silent threat among us: leveraging health information technology in the search for asymptomatic COVID 19 healthcare workers
Authors: McKeeby Jon W , Siwy Christopher M , Revoir Josanne , Carlson Seth D , Joyce Maria D , Bailin Heike , Frank Karen M , Krumlauf Mike , Matlock Ann Marie , Lee Laura M , Sparks Mary , Barnes Tony , Liu Yenshei , Row Chung-Hee , Schmitt James M , Smith Danielle , Zelazny Adrian M , Lonnerdal Daniel , Coffey Patricia S 
Published: September 2020

Abstract
Assuring the safety of both patients and healthcare workers (HCWs) in hospitals has been the primary focus of every healthcare organization during the COVID 19 pandemic. This article discusses the NIH Clinical Center’s interdisciplinary approach to deploying an organizational Asymptomatic Staff Testing System.
Classifying topological charge in SU(3) Yang–Mills theory with machine learning
Authors: Matsumoto Takuya , Kitazawa Masakiyo , Kohno Yasuhiro 
Published: September 2020

Abstract
We apply a machine learning technique for identifying the topological charge of quantum gauge configurations in four-dimensional SU(3) Yang–Mills theory. The topological charge density measured on the original and smoothed gauge configurations with and without dimensional reduction is used as inputs for neural networks (NNs) with and without convolutional layers. The gradient flow is used for the smoothing of the gauge field. We find that the topological charge determined at a large flow time can be predicted with high accuracy from the data at small flow times by the trained NN; for example, the accuracy exceeds $99\%$ with the data at $t/a^2\le0.3$. High robustness against the change of simulation parameters is also confirmed with a fixed physical volume. We find that the best performance is obtained when the spatial coordinates of the topological charge density are fully integrated out in preprocessing, which implies that our convolutional NN does not find characteristic structures in multi-dimensional space relevant for the determination of the topological charge.