bluuebunny/crossref_metadata_2025_split huggingface dataset:
A consistent implementation of point sources on finite-difference grids
Authors: Koene Erik F M , Robertsson Johan O A , Andersson Fredrik 
Published: August 2020

SUMMARY
We present a method to position point sources at arbitrary locations on finite-difference (FD) grids. We show that implementing point sources on single nodes can cause considerable errors when modelling with the FD method. In contrast, we propose to create a spatially distributed source (over multiple nodes) that nonetheless creates the desired point-source response. The spatial point source is formulated in the wavenumber domain and is based on the FD coefficients used for the wave propagation. Using this ‘FD-consistent source’ on 1-D and 2-D examples, we show that we can obtain superior fits to analytical solutions compared to single-node or sinc-function source implementations, and we show that sources can be offset to arbitrary locations from ‘on’ the grid to ‘off’ the grid, while resulting in solutions that are identical to within machine precision
Preimplantation genetic testing for aneuploidy: are we examining the correct outcomes?
Authors: Kemper James M , Wang Rui , Rolnik Daniel L , Mol Ben W 
Published: August 2020

ABSTRACTQuestions continue to be raised regarding the benefit of genetic assessment of embryos prior to transfer in IVF, specifically with regards to preimplantation genetic testing for aneuploidy (PGT-A). To evaluate and quantify these concerns, we appraised the most recent (2012–2019) randomized controlled trials on the topic. Only two of these six studies listed cumulative live birth rates per started cycle, with both eliciting a statistically non-significant result. This article describes the concern that a focus on results from the first embryo transfer compared to cumulative outcomes falsely construes PGT-A as having superior outcomes, whilst its true benefit is not confirmed, and it cannot actually improve the true pregnancy outcome of an embryo pool.
Effects of Reynolds Number and Distribution on Passive Flow Control in Owl-Inspired Leading-Edge Serrations
Authors: Rao Chen , Liu Hao 
Published: August 2020

Synopsis
As a sophisticated micro device for noise reduction, the owl-inspired leading-edge (LE) serrations have been confirmed capable of achieving passive control of laminar-turbulent transition while normally paying a cost of lowering the aerodynamic performance in low Reynolds number (Re∼O[103]) regime. In order to explore potential applications of the owl-inspired serrated airfoils or blades in developing low noise wind turbines or multi-copters normally operating at higher Res, we conducted a large-eddy simulation (LES)-based study of Re effects on the aerodynamic performance of 2D clean and serrated models. Our results show that the LE serrations keep working effectively in mitigating turbulent fluctuations over a broad range of Re (O[103] ∼ O[105]), capable of achieving marked improvement in lift-to-drag ratio with increasing Res. As the aeroacoustic fields are in close association with the propagation of the turbulence sources, it is observed that the tradeoff between passive mitigation of turbulent fluctuations (hence aeroacoustic noise suppression) and aerodynamic performance can be noticeably mitigated at large angles of attack (AoAs) and at high Res. This indicates that the LE serrations present an alternative passive flow control mechanism at high Res through a straightforward local excitation of the flow transition while capable of mitigating the turbulent intensity passively. We further developed a 3D LES model of clean and partially serrated rectangular wings to investigate the effects of the LE serrations’ distribution on aerodynamic features, on the basis of the observation that longer serrations are often distributed intensively in the mid-span of real owl’s feathers. We find that the mid-span distributed LE serrations can facilitate the break-up of LE vortices and the turbulent transition passively and effectively while achieving a low level of turbulence kinetic energy over the upper suction surface of the wing.
Judicializing economic violence as means of dismantling the structural causes of atrocity in the Democratic Republic of Congo
Authors: Sehmi Anushka 
Published: August 2020

Abstract
The International Criminal Court (ICC) convicted three militia commanders – Thomas Lubanga Dyilo, Germain Katanga and Bosco Ntaganda – for war crimes and crimes against humanity committed in Ituri, in the Democratic Republic of Congo. However, none of these convictions have resulted in a cessation of violence in the region, as recent events have illustrated. Although the ICC is one initiative aimed at securing peace in Ituri, the extent of the ICC’s engagement with this particular context presents a good opportunity to reflect on its limited contribution and to illustrate the structural violence problems that underlie most, if not all, ICC situations and cases in Africa. Furthermore, it will be argued that the ICC can redeem itself from its embeddedness within the liberal peacebuilding paradigm by judicialising the economic realities of violence, thereby combating some of the worst effects of structural violence.
Do Exports Affect Urbanisation in Sub-Saharan Africa? Evidence From the Baltic Dry Index and Panel Regressions With Cross-Sectional Dependence
Authors: Pham Ngoc Thien Anh , Sim Nicholas 
Published: August 2020

Abstract
Unlike other developing countries, urbanisation in sub-Saharan Africa appears to be unaccompanied by an improvement in economic fundamentals. This paper provides new evidence that exports may increase urbanisation in sub-Saharan Africa. To address the issue of reverse causality, we instrument exports with information linked to the Baltic Dry Index, which reflects the shipping cost of primary commodities that the sub-Saharan Africa countries mainly export. To handle a large class of confounding variables and cross-sectional dependence, we employ panel regressions with interactive fixed effects. We find that exports have a sizable positive effect on urbanisation. Interestingly, we also find that exports will lose their statistical significance if cross-sectional dependence is overlooked, suggesting that the true effect of an economic fundamental on urbanisation could be obscured by cross-sectional dependence.
Effects of a microencapsulated formula of organic acids and essential oils on nutrient absorption, immunity, gut barrier function, and abundance of enterotoxigenic Escherichia coli F4 in weaned piglets challenged with E. coli F4
Authors: Choi Janghan , Wang Lucy , Liu Shangxi , Lu Peng , Zhao Xiaoya , Liu Haoming , Lahaye Ludovic , Santin Elizabeth , Liu Song , Nyachoti Martin , Yang Chengbo 
Published: August 2020

Abstract
The objective was to study the effects of microencapsulated organic acids (OA) and essential oils (EO) on growth performance, immune system, gut barrier function, nutrient digestion and absorption, and abundance of enterotoxigenic Escherichia coli F4 (ETEC F4) in the weaned piglets challenged with ETEC F4. Twenty-four ETEC F4 susceptible weaned piglets were randomly distributed to 4 treatments including (1) sham-challenged control (SSC; piglets fed a control diet and challenged with phosphate-buffered saline (PBS)); (2) challenged control (CC; piglets fed a control diet and challenged with ETEC F4); (3) antibiotic growth promoters (AGP; CC + 55 mg·kg–1 of Aureomycin); and (4) microencapsulated OA and EO [P(OA+EO); (CC + 2 g·kg−1 of microencapsulated OA and EO]. The ETEC F4 infection significantly induced diarrhea at 8, 28, 34, and 40 hr postinoculation (hpi) (P &lt; 0.05) in the CC piglets. At 28 d postinoculation (dpi), piglets fed P(OA+EO) had a lower (P &lt; 0.05) diarrhea score compared with those fed CC, but the P(OA+EO) piglets had a lower (P &lt; 0.05) diarrhea score compared with those fed the AGP diets at 40 dpi. The ETEC F4 infection tended to increase in vivo gut permeability measured by the oral gavaging fluorescein isothiocyanate-dextran 70 kDa (FITC-D70) assay in the CC piglets compared with the SCC piglets (P = 0.09). The AGP piglets had higher FITC-D70 flux than P(OA+EO) piglets (P &lt; 0.05). The ETEC F4 infection decreased mid-jejunal VH in the CC piglets compared with the SCC piglets (P &lt; 0.05). The P(OA+EO) piglets had higher (P &lt; 0.05) VH in the mid-jejunum than the CC piglets. The relative mRNA abundance of Na+-glucose cotransporter and B0AT1 was reduced (P &lt; 0.05) by ETEC F4 inoculation when compared with the SCC piglets. The AGP piglets had a greater relative mRNA abundance of B0AT1 than the CC piglets (P &lt; 0.05). The ETEC F4 inoculation increased the protein abundance of OCLN (P &lt; 0.05), and the AGP piglets had the lowest relative protein abundance of OCLN among the challenged groups (P &lt; 0.05). The supplementation of microencapsulated OA and EO enhanced intestinal morphology and showed anti-diarrhea effects in weaned piglets challenged with ETEC F4. Even if more future studies can be required for further validation, this study brings evidence that microencapsulated OA and EO combination can be useful within the tools to be implemented in strategies for alternatives to antibiotics in swine production.
The effects of venting and capsulotomy on traction force and hip distraction in hip arthroscopy
Authors: O’Neill Dillon C , Hadley Matthew L , Adeyemi Temitope F , Aoki Stephen K , Maak Travis G 
Published: August 2020

Abstract
This study evaluated the effects of venting and capsulotomy on the ratio of normalized distraction distance to traction force, correlating this trend with patient demographic factors. A ratio was chosen to capture the total effect of each intervention on the hip joint. During primary hip arthroscopy, continuous traction force was recorded, and fluoroscopic images were acquired to measure joint distraction before and after the application of traction, venting and interportal capsulotomy. Distraction–traction force ratios were compared using a one-sided paired t-test. A linear regression model was used to determine the relationship between age, sex and body mass index and pre- and post-intervention distraction–traction force ratios. Seventy-two adult patients and 73 hips were included. There was an increase in hip distraction with a decrease in traction force post-venting and capsulotomy (both P’s &lt;0.001). Mean normalized distraction distance increased 1.5% of femoral head size after venting and an additional 2.2% of femoral head size after capsulotomy. Mean traction force decreased 2.2% (14.7 N) after venting and 2.3% (15.3 N) after capsulotomy. Female sex significantly correlated with larger differences in both pre- and post-venting capsulotomy ratios. Venting and capsulotomy both independently improve the ratio of normalized distraction distance to traction force when performed in vivo. However, the effect sizes of each intervention are small and of questionable clinical significance. Specifically, when adequate distraction for safe surgical hip access cannot be obtained despite application of significant traction force, venting and capsulotomy after the application of traction may not afford substantial improvement.
Degarelix as a neoadjuvant hormonal therapy for acute urinary tract toxicity associated with external beam radiotherapy for intermediate- and high-risk prostate cancer: a propensity score matched analysis
Authors: Hata Shinro , Shin Toshitaka , Abe Satoki , Kawano Kaori , Sato Ryuta , Kai Tomoki , Shibuya Tadamasa , Ando Tadasuke , Mimata Hiromitsu 
Published: August 2020

Abstract

Background
In prostate cancer treatment, lower urinary tract symptoms significantly improve with luteinizing hormone-releasing hormone antagonists use compared with agonists. However, it is unclear whether luteinizing hormone-releasing hormone antagonists can decrease acute urinary tract toxicity during external beam radiotherapy. This study aimed to assess whether luteinizing hormone-releasing hormone antagonists used as neoadjuvant therapy reduced acute urinary tract toxicity during external beam radiotherapy compared with luteinizing hormone-releasing hormone agonists.

Methods
The study included 78 patients who underwent intensity-modulated radiation therapy for intermediate- and high-risk prostate cancer between April 2013 and January 2020. Irradiation was initiated after 3–6 months of neoadjuvant therapy. Androgen deprivation therapy was given to the intermediate-risk group for 6 months and the high-risk group for 2–3 years. The European Organization for Research and Treatment of Cancer/Radiation Therapy Oncology Group toxicity grading scale was used to evaluate the urinary tract system toxicity. Relevant clinical factors were used in matching patients based on propensity scores to enable comparison between the groups.

Results
Each group had 27 matched patients. There was no reduction in urinary tract toxicity with the use of luteinizing hormone-releasing hormon antagonists (P = 0.624). For patients with an International Prostate Symptom Score of ≥11 at the start of treatment, 18 patients in each group were matched. Significantly lower scores were observed in the luteinizing hormone-releasing hormon antagonist group (P = 0.041).

Conclusions
Luteinizing hormone-releasing hormon antagonists may reduce acute urinary tract toxicity during prostate cancer external beam radiotherapy compared with luteinizing hormone-releasing hormon agonists, in particular in patients with moderate to severe symptoms at the start of treatment.
Photography and the Perils of Automaticity: P. H. Emerson, Copyright, and the Agency of the Artist
Authors: Koo JiHae 
Published: August 2020

Abstract
The photographer Peter Henry Emerson (1856–1936) is known today for the splash he made on the Victorian photographic scene in the 1880s with his bold refusal to follow his fellow art photographers (collectively known as the Pictorialists) in latching the new medium on to the aesthetic conventions of painting. His conventional position within art history is thus as a precursor to the Modernist conception of photography’s medium-specificity. Yet even if Emerson’s work was ahead of its time in its proto-Modernist refusal of painterly conventions, it also has qualities that place it more squarely within late-Victorian discourses. In particular, I argue, Emerson’s ongoing efforts to secure his photographs via copyright law need to be understood as reflective of a distinctly nineteenth-century cultural imaginary. This essay addresses the relationship between Emerson’s aesthetic theory and copyright law by dividing Emerson’s career into two stages, before and after 1891, this being the year in which Emerson abruptly disavowed photography as an artistic medium in his short pamphlet ‘The Death of Naturalistic Photography’. Examining two photography books – Pictures of East Anglian Life (1888) and On English Lagoons (1893) – alongside late-Victorian debates about photographic copyright, I show that Emerson’s earlier belief in photographic copyright’s ability to retain the integrity of an artist’s vision breaks down after 1891. He loses faith in the ‘copyrightability’ of photography in 1891 when he recognizes the mechanical nature – or automaticity – of the camera. That is, Emerson realizes that the photograph is never purely the product of the artist. In sum, this case study shows that by the 1890s, photographic copyright was becoming detached from the notion of creativity and thus could no longer be the guarantee of a photographer’s claim to artistic individuality.
Evaluation of HCV RNA by PCR and Signal-to-Cutoff Ratios of HCV Antibody Assays for Diagnosis of HCV Infection
Authors: Kim Myeong Hee , Kang So Young , Lee Woo In , Lee Min Young 
Published: August 2020

Abstract

Objective
In this study, we assessed whether a hepatitis C virus (HCV) RNA test could replace recombinant immunoblot assay (RIBA) and reduce unnecessary supplemental tests as the signal-to-cutoff (S/Co) ratio from anti-HCV antibody (Ab) tests.

Methods
Anti-HCV Ab tests were performed to screen for HCV infections, and RIBA and real-time polymerase chain reaction were performed for HCV RNA to confirm HCV infection. Receiver operating characteristic curves were evaluated to determine the optimal S/Co ratios for predicting HCV infection.

Results
The cutoff value for the S/Co ratio was 3.63 for predicting RIBA results and 10.6 for predicting HCV RNA results. Our data suggested that an S/Co ratio ≥10.6 indicated a high risk of active HCV infection. An S/Co ratio of 3.63 to 10.6 needed further evaluation and repeat HCV RNA testing. No further testing was required for S/Co ratios &lt;3.63 or ≥10.6.

Conclusion
We determined that the S/Co ratio of the anti-HCV Ab test provides useful information to confirm HCV infections, including the need for further laboratory testing or clinical follow-up.
Pregnancy and Abortion: Experiences and Attitudes of Deployed U.S. Servicewomen
Authors: Seymour Jane W , Fix Laura , Grossman Daniel , Grindlay Kate 
Published: August 2020

Abstract

Introduction
More U.S. servicewomen than civilian women experience unintended pregnancies, which can impact their health, well-being, and careers. Despite this, federal policy limits abortion access and coverage for military personnel to cases of rape, incest, and life endangerment. This study aimed to document servicewomen’s experiences with unintended pregnancy and abortion during deployment, and their knowledge and opinions of military policies related to sexual activity, pregnancy, and abortion.

Material and Methods
Between June 2016 and July 2017, we conducted a cross-sectional online survey among a convenience sample of current and former U.S. Military, National Guard, and Reserves members whose last deployment ended in 2010 or later. We asked open- and closed-ended questions about demographics, experiences with pregnancy and abortion during deployment, and knowledge and opinions of military policies related to sexual activity, pregnancy, and abortion. We ran descriptive statistics on closed-ended questions and inductively coded open-ended question responses. This study was approved by the Allendale Investigational Review Board.

Results
A total of 319 participants were included. The majority said that servicewomen are reprimanded for sexual activity and becoming pregnant during deployment in all or some circumstances. Among these respondents, one-third said that fear of reprimand for sexual activity affects deployed servicewomen’s use of contraception. Twenty respondents became pregnant or discovered that they were pregnant during deployment; twelve were unable to access the pregnancy- and/or abortion-related services they wanted or needed. Among those whose last deployment ended in 2013 or later (n = 141), when federal policy expanded abortion coverage for servicemembers to include cases of rape and incest, the minority knew the correct coverage or provision policies for abortion in cases of rape and incest or life endangerment. The majority believed that the military should cover and provide abortion in cases of rape, incest, or life endangerment and for unwanted pregnancies.

Conclusion
Among this convenience sample of current and former servicewomen with an overseas deployment that ended in 2010 or later, 6% became pregnant or discovered that they were pregnant during deployment, and most of these respondents reported being unable to access the pregnancy- and/or abortion-related services they wanted or needed. The majority reported lack of knowledge of military abortion policies and that servicewomen are reprimanded for pregnancy and/or sexual activity in some or all circumstances, with many noting this reprimand as a barrier to contraceptive use for some servicewomen. Predeployment health visits may be one intervention point for disseminating the military’s abortion policies; commanding officers should also be well versed in these policies so that they are able to provide effective leadership to junior military members.
Temporal evolution of the permanent shadowed regions at Mercury poles: applications for spectral detection of ices by SIMBIOSYS-VIHI on BepiColombo mission
Authors: Filacchione Gianrico , Frigeri Alessandro , Raponi Andrea , Ciarniello Mauro , Capaccioni Fabrizio , De Sanctis Maria Cristina , Carli Cristian , Galluzzi Valentina , Cremonese Gabriele , Lucchetti Alice , Re Cristina , Massironi Matteo 
Published: August 2020

ABSTRACT
Radar observations from the Earth and multi-instrument measurements by MESSENGER mission have indicated the presence of large quantities of ices within the permanent shadowed regions (PSRs) located at Mercury poles. The detection and mapping of the distribution of volatile species on PSRs are among the primary scientific goals of the Spectrometer and IMagers for MPO Bepicolombo Integrated Observatory SYStem (SIMBIO-SYS) suite aboard ESA’s BepiColombo mission. We report about a three-steps preparatory study mainly focusing on SIMBIO-SYS/Visible and near Infrared Hyperspectral Imager (VIHI) 0.4–2.0 μm imaging spectrometer aiming (1) to render the solar illumination temporal evolution occurring on polar regions and in particular on Prokofiev and Kandinsky craters by studying the effects of shadows and penumbras caused by the finite apparent solar disc; (2) to simulate the spectral reflectance of various mixtures of average Mercury terrain and water ice in the spectral range of the VIHI imaging spectrometer channel in direct illumination, penumbra and shadowed illumination conditions; and (3) to verify the resulting VIHI signal-to-noise ratio during the different phases of the BepiColombo mission.
The stellar populations of high-redshift dwarf galaxies
Authors: Gelli V , Salvadori S , Pallottini A , Ferrara A 
Published: August 2020

ABSTRACT
We use high-resolution (≈10 pc), zoom-in simulations of a typical (stellar mass $M_\star \simeq 10^{10}\, {\rm M}_{\odot }$) Lyman Break Galaxy (LBG) at z ≃ 6 to investigate the stellar populations of its six dwarf galaxy satellites, whose stellar [gas] masses are in the range log (M⋆/M⊙) ≃ 6−9 [log (Mgas/M⊙) ≃ 4.3−7.75]. The properties and evolution of satellites show no dependence on the distance from the central massive LBG (&lt;11.5 kpc). Instead, their star formation and chemical enrichment histories are tightly connected to their stellar (and sub-halo) mass. High-mass dwarf galaxies ($M_\star \gtrsim 5\times 10^8 \, {\rm M}_{\odot }$) experience a long history of star formation, characterized by many merger events. Lower mass systems go through a series of short star formation episodes, with no signs of mergers; their star formation activity starts relatively late (z ≈ 7), and it is rapidly quenched by internal stellar feedback. In spite of the different evolutionary patterns, all satellites show a spherical morphology, with ancient and more metal-poor stars located towards the inner regions. All six dwarf satellites experienced high star formation rate ($\rm \gt 5\, {\rm M}_{\odot }\, {\rm yr}^{-1}$) bursts, which can be detected by James Webb Space Telescope while targeting high-z LBGs.