bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigating the link between medical urgency and hospital efficiency – Insights from the German hospital market
Authors: Schneider Annika Maren , Oppel Eva-Maria , Schreyögg Jonas 
Published: September 2020

AbstractWith hospital budgets remaining tight and healthcare expenditure rising due to demographic change and advances in technology, hospitals continue to face calls to contain costs and allocate their resources more efficiently. In this context, efficiency has emerged as an increasingly important way for hospitals to withstand competitive pressures in the hospital market. Doing so, however, can be challenging given unpredictable fluctuations in demand, a prime example of which are emergencies, i.e. urgent medical cases. The link between medical urgency and hospitals’ efficiency, however, has been neglected in the literature to date. This study therefore aims to investigate the relationship between hospitals’ urgency characteristics and their efficiency. Our analyses are based on 4094 observations from 1428 hospitals throughout Germany for the years 2015, 2016, and 2017. We calculate an average urgency score for each hospital based on all cases treated in that hospital per year and also investigate the within-hospital dispersion of medical urgency. To analyze the association of these urgency measures with hospitals’ efficiency we use a two-stage double bootstrap data envelopment analysis approach with truncated regression. We find a negative relationship between the urgency score and hospital efficiency. When testing for non-linear effects, the results reveal a u-shaped association, indicating that having either a high or low overall urgency score is beneficial in terms of efficiency. Finally, our results reveal that higher within-hospital urgency dispersion is negatively related to efficiency.
Effective theories and infinite idealizations: a challenge for scientific realism
Authors: Rivat Sébastien 
Published: September 2020

AbstractWilliams and J. Fraser have recently argued that effective field theory methods enable scientific realists to make more reliable ontological commitments in quantum field theory (QFT) than those commonly made. In this paper, I show that the interpretative relevance of these methods extends beyond the specific context of QFT by identifying common structural features shared by effective theories across physics. In particular, I argue that effective theories are best characterized by the fact that they contain intrinsic empirical limitations, and I extract from their structure one central interpretative constraint for making more reliable ontological commitments in different subfields of physics. While this is in principle good news, this constraint still raises a challenge for scientific realists in some contexts, and I bring the point home by focusing on Williams’s and J. Fraser’s defense of selective realism in QFT.
Media capture strategies in new authoritarian states: the case of Turkey
Authors: Coşkun Gülçin Balamir 
Published: September 2020

AbstractThis article focuses on the forced transformation of the mass media as an institution in new authoritarian states. It aims to understand the methods used by theses states to control and manipulate the flux of news through the mass media. Turkey’s media system has been chosen as a case study because the recent political developments in the country offer worrisome und devastating examples. This article aims to answer to the following question: How can we classify methods and strategies used by the AKP government to capture the media in Turkey? Why and how do the methods used by the AKP government differ from those applied by previous governments? To answer to these questions, the article draws on media capture as a framework of analysis. It argues that the AKP captured the media by using new strategies which can be divided into three overlapping and interconnected categories: capture by creating its own private media, capture through financial sanctions, and capture by intimidating and criminalizing journalists.
Parcelized Cut-and-Carry Agroforestry Systems for Confined Livestock
Authors: Seruni A. P. , Aguilar F. X. , Cai Z. , Gold M. A. , Roshetko J. M. 
Published: September 2020

AbstractWe characterize a parcelized land management system that does not meet traditional co-located agroforestry practices in the tropics. A cut-and-carry agroforestry system for confined livestock emphasizes land utilization as a source of fodder, cutting and carrying feed from parcels to paddocks near a farmer’s home. It reduces feed cost by utilizing parcels under private, shared, and/or public ownership. Within cut-and-carry systems, we distinguish between those where parcels are managed as monocrops and traditional co-located agroforestry practices. Primary data for our case study were collected by surveying heads of household in Central Java, Indonesia, and analyzed following a capitals-based rural livelihoods framework. A sample of 122 farmers who managed parcels under co-located agroforestry practices was compared against 50 farmers who implemented parcelized monocropping. Overall, the adoption of cut-and-carry systems supports financial resiliency by limiting cash expenditures, facilitating income diversification, and producing assets that meet planned market opportunities and unforeseen cash needs. Survey results show that farmers who engage in parcelized agroforestry have more farming experience, higher farming income, are located at higher elevations, and live farther from the nearest local market. On-farm income among agroforestry cut-and-carry farmers was on average 11.1% higher than those using a cut-and-carry system but only adopting monocrop practices. Land as a biophysical capital asset under full private-ownership and at higher altitudes, and longer farming experience as a human capital asset, increased the likelihood of adopting parcelized co-located agroforestry practices. Membership in cash-crop cooperatives as a form of social capital asset was associated with a higher likelihood of managing land as parcelized monocrops.
Validity test of the theory of planned behavior in college students’ withdrawal from smartphone dependence
Authors: Yue Heng , Li Cuiyun , Liu Min , Jin Ruyi , Bao Hugejiletu 
Published: September 2020

AbstractSmartphone usage has brought great convenience to our daily life. However, the detrimental consequences of smartphone dependence also require special attention. Based on the theory of planned behavior (TPB), this study designed a questionnaire to investigate college students’ withdrawal from smartphone dependence. The reliability and validity of the questionnaire were tested. The results showed that the reliability of the questionnaire was good (α = 0.84–0.94). The principal component analysis was conducted, contribution rates of these factors were moderately high (62.06%–82.35%). The validity was verified through confirmatory factor analysis. All the model fit indices were higher than the acceptable standard, which indicated the construct validity of the TPB questionnaire is good. The results of the multi-group structural equation model revealed that the model provided excellent fit to the data in each demographic group. The results of structural equation model presented that, in most demographic groups, students’ attitude, subjective norm, and perceived behavioral control of withdrawal from smartphone dependence positively influenced their behavioral intention. Furthermore, subjective norm was the most effective predictors in each group. However, part of the paths from intention to behavior failed to reach the significant level, and their coefficients are relatively small. This reveals the gap between college students’ withdrawal intention and their actual behavior, and there may be other factors influence the relationship between the two variables.
Internationale Drogenpolitik: „Vom Zwang zum Zusammenhalt“. Abschied vom Drogenkrieg?
Authors: Lessmann Robert 
Published: September 2020

ZusammenfassungIn der internationalen Drogenpolitik zeichnet sich eine Abkehr vom Drogenkrieg hin zu einer von gesundheitspolitischen Prioritäten geleiteten Politik ab – zumindest auf rhetorischer Ebene. Der vorliegende Essay zeichnet die Entwicklung und ihre Triebkräfte nach und zeigt Perspektiven auf.
A Review of Translational Magnetic Resonance Imaging in Human and Rodent Experimental Models of Small Vessel Disease
Authors: Stringer Michael S. , Lee Hedok , Huuskonen Mikko T. , MacIntosh Bradley J. , Brown Rosalind , Montagne Axel , Atwi Sarah , Ramirez Joel , Jansen Maurits A. , Marshall Ian , Black Sandra E. , Zlokovic Berislav V. , Benveniste Helene , Wardlaw Joanna M. 
Published: September 2020

AbstractCerebral small vessel disease (SVD) is a major health burden, yet the pathophysiology remains poorly understood with no effective treatment. Since much of SVD develops silently and insidiously, non-invasive neuroimaging such as MRI is fundamental to detecting and understanding SVD in humans. Several relevant SVD rodent models are established for which MRI can monitor in vivo changes over time prior to histological examination. Here, we critically review the MRI methods pertaining to salient rodent models and evaluate synergies with human SVD MRI methods. We found few relevant publications, but argue there is considerable scope for greater use of MRI in rodent models, and opportunities for harmonisation of the rodent-human methods to increase the translational potential of models to understand SVD in humans. We summarise current MR techniques used in SVD research, provide recommendations and examples and highlight practicalities for use of MRI SVD imaging protocols in pre-selected, relevant rodent models.
Primary, Secondary, and Tertiary Effects of Carbohydrate Ingestion During Exercise
Authors: Rollo Ian , Gonzalez Javier T. , Fuchs Cas J. , van Loon Luc J. C. , Williams Clyde 
Published: September 2020

AbstractThe purpose of this current opinion paper is to describe the journey of ingested carbohydrate from ‘mouth to mitochondria’ culminating in energy production in skeletal muscles during exercise. This journey is conveniently described as primary, secondary, and tertiary events. The primary stage is detection of ingested carbohydrate by receptors in the oral cavity and on the tongue that activate reward and other centers in the brain leading to insulin secretion. After digestion, the secondary stage is the transport of monosaccharides from the small intestine into the systemic circulation. The passage of these monosaccharides is facilitated by the presence of various transport proteins. The intestinal mucosa has carbohydrate sensors that stimulate the release of two ‘incretin’ hormones (GIP and GLP-1) whose actions range from the secretion of insulin to appetite regulation. Most of the ingested carbohydrate is taken up by the liver resulting in a transient inhibition of hepatic glucose release in a dose-dependent manner. Nonetheless, the subsequent increased hepatic glucose (and lactate) output can increase exogenous carbohydrate oxidation rates by 40–50%. The recognition and successful distribution of carbohydrate to the brain and skeletal muscles to maintain carbohydrate oxidation as well as prevent hypoglycaemia underpins the mechanisms to improve exercise performance.
Gender susceptibility to COVID-19: a review of the putative role of sex hormones and X chromosome
Authors: Foresta C. , Rocca M. S. , Di Nisio A. 
Published: September 2020

Abstract
Background
The recent emergence of COVID-19 poses a global health emergency. One of the most frequently reported data is sex-related severity and mortality: according to the last available analysis on 239,709 patients in Italy, lethality is 17.7% in men and 10.8% in women, with 59% of total deaths being men. Interestingly, the infection rate is lower in males than in females, with 45.8% and 54.2% of positive cases, respectively, suggesting that gender-related factor may worsen disease evolution. A tentative hypothesis to explain these findings is the role of angiotensin-converting enzyme 2 (ACE2) and serine protease TMPRSS2 involved in viral infection.

Purpose
In this review, we summarize the available evidence pointing to gender-related differences in ACE2 and TMPRSS2 expression, from both genetic and endocrine points of view.

Results
Altogether, available evidence points toward two not-mutually exclusive mechanisms in gender susceptibility to COVID-19 by sex hormonal regulation of ACE2 and TMPRSS2. On one hand, ACE2 expression could be increased in women, either by estrogens or constitutively by X chromosome inactivation escape or by reduced methylation, providing a larger reservoir of ACE2 to maintain the fundamental equilibrium of RAS regulatory axis. On the other, low levels of androgens in women may keep at low levels TMPRSS2 expression, representing a further protective factor for the development of COVID-19 infection, despite the increased expression of ACE2, which represents the Trojan horse for SARS-CoV-2 entry.

Conclusions
Both mechanisms consistently point to the role of sex hormones and sex chromosomes in the differential severity and lethality of COVID-19 in men and women.
Optimal and prototype dimensioning of 48V P0+P4 hybrid drivetrains
Authors: Werra Matthias , Sturm Axel , Küçükay Ferit 
Published: September 2020

AbstractThis paper presents a virtual toolchain for the optimal concept and prototype dimensioning of 48 V hybrid drivetrains. First, this toolchain is used to dimension the drivetrain components for a 48 V P0+P4 hybrid which combines an electric machine in the belt drive of the internal combustion engine and a second electric machine at the rear axle. On an optimal concept level, the power and gear ratios of the electric components in the 48 V system are defined for the best fuel consumption and performance. In the second step, the optimal P0+P4 drivetrain is simulated with a prototype model using a realistic rule-based operating strategy to determine realistic behavior in legal cycles and customer operation. The optimal variant shows a fuel consumption reduction in the Worldwide harmonized Light Duty Test Cycle of 13.6 % compared to a conventional vehicle whereas the prototype simulation shows a relatively higher savings potential of 14.8 %. In the prototype simulation for customer operation, the 48 V hybrid drivetrain reduces the fuel consumption by up to 24.6 % in urban areas due to a high amount of launching and braking events. Extra-urban and highway areas show fuel reductions up to 11.6 % and 4.2 %, respectively due to higher vehicle speed and power requirements. The presented virtual toolchain can be used to combine optimal concept dimensioning with close to reality behaviour simulations to maximise realistic statements and minimize time effort.
Online influence, offline violence: language use on YouTube surrounding the ‘Unite the Right’ rally
Authors: van der Vegt Isabelle , Mozes Maximilian , Gill Paul , Kleinberg Bennett 
Published: September 2020

AbstractThe media frequently describes the 2017 Charlottesville ‘Unite the Right’ rally as a turning point for the alt-right and white supremacist movements. Social movement theory suggests that the media attention and public discourse concerning the rally may have engendered changes in social identity performance and visibility of the alt-right, but this has yet to be empirically tested. The presence of the movement on YouTube is of particular interest, as this platform has been referred to as a breeding ground for the alt-right. The current study investigates whether there are differences in language use between 7142 alt-right and progressive YouTube channels, in addition to measuring possible changes as a result of the rally. To do so, we create structural topic models and measure bigram proportions in video transcripts, spanning approximately 2 months before and after the rally. We observe differences in topics between the two groups, with the ‘alternative influencers’, for example, discussing topics related to race and free speech to a larger extent than progressive channels. We also observe structural breakpoints in the use of bigrams at the time of the rally, suggesting there are changes in language use within the two groups as a result of the rally. While most changes relate to mentions of the rally itself, the alternative group also shows an increase in promotion of their YouTube channels. In light of social movement theory, we argue that language use on YouTube shows that the Charlottesville rally indeed triggered changes in social identity performance and visibility of the alt-right.
Retreatability analysis of the Musina copper mine tailings in South Africa: an exploratory study
Authors: Singo N. K. , Kramers J. D. 
Published: September 2020

AbstractIn recent times, the potential beneficial uses of abandoned mine sites have been recognised and acted upon through the retreatment of tailings in order to win minerals of interest still available in economically viable concentrations. The most notable benefit (although not usually factored in financially) is that, once the tailings have been removed, the land has a greater potential to be developed further. The main aim of this study was to investigate the contents of copper and potentially harmful elements in the tailings of the Musina mine, an abandoned Cu mine in the northern Limpopo Province, in order to assess environmental hazards and to provide a first estimate of the feasibility of future economic rehabilitation. The concept of reclaiming was here seen in a broad way and ranged from the reworking of tailings or other residues to residential and/or recreational use. To quantify the potential economic importance and impacts of the metal content of the tailings, geochemical analysis of samples from auger holes and resource modelling were employed. Neutral to slightly basic pH values and very low concentrations of arsenic and lead showed that acid drainage and toxic groundwater contamination (apart from Cu itself) would not be a concern. Three-dimensional (3D) and two-dimensional (2D) models were applied to estimate the resource potential of the tailings dump. The models revealed that residual Cu in the Musina mine tailings is currently at 8555 tonnes. Accordingly, going forward, we recommend a formalised geometallurgical study to assess the economic feasibility of extracting Cu, with a view to reworking the copper tailings dump. It is very important that this tailings dump be mined in future, in order to extract all Cu and ensure that the sterilised land (up to 95 ha) can be used for other purposes.
Endtimes of Human Rights? Neue Forschungen zur Geschichte der Menschenrechte
Authors: Möckel Benjamin 
Published: September 2020

ZusammenfassungDie Menschenrechte sind in den letzten Jahren unter Druck geraten. Einige Autoren haben zuletzt sogar von einem „Ende“ der Menschenrechte als Leitlinie der internationalen Politik gesprochen. Der Artikel analysiert, wie neuere Forschungen der Menschenrechtsgeschichte auf diese Herausforderung reagieren. Er argumentiert, dass der lange dominierende Fokus auf Fragen der Periodisierung einem neuen Bewusstsein für die zeitliche, räumliche und thematische Pluralität und Heterogenität der Menschenrechte gewichen sei und beleuchtet vor diesem Hintergrund vier zentrale Forschungsfelder: erstens das Verhältnis von Menschenrechten und Ökonomie, zweitens die Geschichte humanitärer Interventionen und der hiermit einhergehenden Verbindung von Menschenrechten und militärischer Gewalt, drittens die Rolle der Medien in der Geschichte der Menschenrechte und viertens die neuen Herausforderungen einer Globalgeschichte der Menschenrechte.
Detecting possibly frequent change-points: Wild Binary Segmentation 2 and steepest-drop model selection—rejoinder
Authors: Fryzlewicz Piotr 
Published: September 2020

AbstractMany existing procedures for detecting multiple change-points in data sequences fail in frequent-change-point scenarios. This article proposes a new change-point detection methodology designed to work well in both infrequent and frequent change-point settings. It is made up of two ingredients: one is “Wild Binary Segmentation 2” (WBS2), a recursive algorithm for producing what we call a ‘complete’ solution path to the change-point detection problem, i.e. a sequence of estimated nested models containing $$0, \ldots , T-1$$

0
,
…
,
T
-
1

change-points, where T is the data length. The other ingredient is a new model selection procedure, referred to as “Steepest Drop to Low Levels” (SDLL). The SDLL criterion acts on the WBS2 solution path, and, unlike many existing model selection procedures for change-point problems, it is not penalty-based, and only uses thresholding as a certain discrete secondary check. The resulting WBS2.SDLL procedure, combining both ingredients, is shown to be consistent, and to significantly outperform the competition in the frequent change-point scenarios tested. WBS2.SDLL is fast, easy to code and does not require the choice of a window or span parameter.
Predation and survival in reintroduced populations of the Common hamster Cricetus cricetus in the Netherlands
Authors: La Haye Maurice J. J. , van Kats Ruud J. M. , Müskens Gerard J. D. M. , Hallmann Caspar A. , Jongejans Eelke 
Published: September 2020

AbstractEuropean populations of Common hamster (Cricetus cricetus) have dramatically declined in the last decades, and in many EU countries, the species is on the brink of extinction. In the Netherlands, a research and reintroduction program was started in three areas with hamster-friendly management to reverse the decline of the species. Since 2002, more than 800 captive-bred and wild-born hamsters were monitored using implant radiotransmitters to quantify survival rates and discover the main causes of death after release compared to those of wild individuals. Individuals with a transmitter were regularly checked at their burrow. Predation by foxes, birds of prey, and small mustelids was the most important cause of mortality of this medium-sized rodent, while crop type and harvest regime were also likely to be important drivers as they influenced survival rates through the presence or absence of protective cover. The fitted weekly survival model showed that male hamsters had much lower survival rates during the active season than females, which corresponds with the ‘risky male hypothesis’. Survival rates of females appeared too low to keep populations at a stable level. To establish a viable population, more optimal environmental conditions for both survival and reproduction of the hamsters are necessary. Using electric fences around fields with hamsters significantly increased the survival of females. However, hamster conservationists need to consider not just subadult and adult survival rates, but also habitat connectivity, weather effects on reproduction, and alternative agricultural practices on a landscape scale.