bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tradeoff between efficiency and perceived quality: evidence from patient-level data
Authors: Bashir Saima , Nasir Muhammad 
Published: August 2020

Abstract

Objectives
To estimate technical efficiency scores of District Headquarter Hospitals (DHQHs) for obstetric services and to explore the relationship between the efficiency of DHQHs and the patients’ satisfaction about the quality of services provided.

Design, Setting and Participants
Data from Health Facility Assessment (HFA) survey is used for efficiency measurement. The data on patient’s perceptions and other control variables are taken from Client Exit Interviews part of the HFA survey. Two-stage residual inclusion, Ordered Logistic Regression and Least square dummy variable techniques are used to investigate the relationship between technical efficiency and patients’ satisfaction level.

Main Outcome Measure(s) and Results
The average efficiency score for Pakistan’s DHQHs is 0.52, and not a single hospital is fully efficient. Moreover, the relationship between technical efficiency and patients’ satisfaction is found to be negative and statistically significant indicating that an increase in hospital efficiency tends to decrease patients’ satisfaction. The disaggregated analysis reveals that patients’ satisfaction associated with the healthcare provider attitude and communication is more affected by technical efficiency.

Conclusion
Patients’ satisfaction level is more sensitive to physician’s attitude and communication. This makes sense because the longer the consultation time, the more accurate the diagnosis would be. This, together with a comforting and confident physician, is likely to achieve better patients’ satisfaction.
Natural Disasters, Forced Migration, and Conflict: The Importance of Government Policy Responses
Authors: Mitchell Sara McLaughlin , Pizzi Elise 
Published: August 2020

AbstractUnderstanding the connections between environmental change, migration, and conflict is urgent as natural disasters increase in frequency and intensity. Countries that experience natural disasters face greater risks for intrastate conflicts, especially for rapid-onset disasters. Migration is one response to these environmental changes. Existing literature suggests that environmental migration can cause violent conflict as migrants lose livelihoods, move to new areas, or compete over scarce resources. However, the path through which migration leads to conflict—and the policy responses that either fuel conflict or promote stability—is not well understood. Some countries develop adequate proactive (e.g., infrastructure) and reactive post-disaster (e.g., reconstruction) policies to mitigate grievances and conflict risks from forced migration. Other countries fail to respond adequately to disasters, opening the door for insurgent groups to garner support. We argue that we must analyze government policies related to relocation programs, restrictions on movement, and post-disaster reconstruction to identify trigger situations where disasters and migration are most likely to produce violence.
A new genus and species from Brazil of the resurrected family Macromaxillocarididae Alvarez, Iliffe & Villalobos, 2006 and a worldwide list of Stenopodidea (Decapoda)
Authors: Bochini Gabriel L , Cunha Andressa M , Terossi Mariana , Almeida Alexandre O 
Published: August 2020

AbstractA new genus and species, Chicosciencea pernambucensisgen. nov., sp. nov., is described from two localities along the coast of Pernambuco state, northeastern Brazil. Considering the unresolved situation of the families of Stenopodidea in previous studies, the position of this new genus is discussed based on morphological, molecular (16S mtDNA), and ecological data. The morphological analysis revealed that Chicoscienceagen. nov. differs from all stenopodidean genera by a combination of characters. The inferred molecular phylogeny recovered a monophyletic group including Chicoscienceagen. nov., MacromaxillocarisAlvarez, Iliffe & Villalobos, 2006, and MicroprosthemaStimpson, 1860, which comprise free-living (i.e., not-sponge associated), shallow-water species. Based on this monophyletic group and on their morphological and ecological similarities, we herein formally propose the resurrection of Macromaxillocarididae Alvarez, Iliffe & Villalobos, 2006 to include those genera. We also provide an updated world list of Stenopodidea. With the description of Chicoscienceagen. nov., the infraorder Stenopodidea now comprises 13 genera and 92 species.
Fishbone perforation of the small bowel mimicking internal herniation and obstruction in a patient with previous gastric bypass surgery
Authors: Traynor Paul , Stupalkowska Weronika , Mohamed Tahira , Godfrey Edmund , Bennett John M H , Gourgiotis Stavros 
Published: August 2020

Abstract
Intestinal perforation following the ingestion of fishbone is unusual and rarely diagnosed preoperatively, as clinical and radiological findings are non-specific. We report a case of a female patient post Roux-en-Y gastric bypass (RYGBP) for obesity, who presented with severe abdominal pain and guarding in left iliac fossa. Computed tomography (CT) suggested internal herniation with compromised vascular supply to the bowel. Exploratory laparotomy identified a perforation site in the blind loop of the RYGBP due to a protruding fishbone. After extraction, primary suture repair was performed. In retrospect, the fishbone was identified on CT but misinterpreted as suture line at the enteroenterostomy site. This case emphasizes that although rare, the ingestion of fishbone can lead to severe complications and should therefore be included in the differential for an acute abdomen. On CT, it should be noted that fishbone may simulate suture line within the bowel if the patient has history of previous surgery.
Fulminant necrotizing fasciitis to the hand in a patient on high-dose steroids: A case report of successful limb salvage
Authors: Johnson Miguel , Berner Juan , Christopoulos George , Hamilton Preci , Pearl Robert 
Published: August 2020

AbstractGlucocorticoids are commonly used in the management of patients with brain Tumour for reducing peritumoral and vasogenic edema. However, they may lead to development of limb and life-threatening conditions such as necrotizing fasciitis (NF). NF is a rare but potentially lethal condition. Early detection and aggressive treatment may lead to decreased mortality and limb salvage. The diagnosis is predominately clinical but may be supported by laboratory and radiological investigations. Chronic steroid use not only predisposes to the development of NF but also may mask early features delaying presentation and diagnosis. Clinicians should have a high index of suspicion especially in patients on chronic steroid therapy as this may aid in early detection and treatment. We present a case report of a successful limb salvage that exemplifies these points.
Huge true aneurysm of the facial artery treated with internal trapping and surgical excision: a case report
Authors: Nakagawa Kiyoko , Yasuda Takuji , Kobayashi Natsuko , Urabe Kazuhiko 
Published: August 2020

Abstract
A report of true aneurysms is extremely rare. There are only five previous case reports of true aneurysm of the facial artery. In the previously reported cases, there was no case that underwent trapping and surgical excision. In this case report, we describe the procedure of internal trapping before the surgical excision of a huge true aneurysm of the right facial artery for a 79-year-old woman. There was no recurrence of the aneurysm during a 6-month follow-up period.
Special type trocar-site hernia with evisceration of the appendix following laparoscopic repair of a perforated duodenal ulcer
Authors: Byrne Jim , Kehoe John D , Kayyal Mohammed Yasser 
Published: August 2020

Abstract
Trocar-site hernia is an uncommon complication of laparoscopic surgery and can be classified as early-onset, late-onset or special type. Special type hernias usually occur in the early postoperative period and result in evisceration of intra-abdominal contents through all layers of the abdominal wall without an overlying hernia sac. We present a case of special type herniation of the appendix through a 5-mm trocar site in the right iliac fossa following laparoscopic repair of a perforated duodenal ulcer. In this case, herniation occurred after removal of a drain inserted through the trocar site intraoperatively and was treated with emergent open appendicectomy. A number of patient and technical factors may be associated with an increased risk of trocar-site herniation including increasing age, elevated body mass index, increasing trocar size, longer procedure duration and absence of fascial closure. These factors must be borne in mind when planning trocar placement and number to reduce the risk of herniation.
Social distancing to combat COVID-19 led to a marked decrease in food-borne infections and sexually transmitted diseases in Spain
Authors: de Miguel Buckley R , Trigo E , de la Calle-Prieto F , Arsuaga M , Díaz-Menéndez M 
Published: August 2020

Abstract
Data from a recent epidemiological surveillance network showed a decrease in the reported number of sexually transmitted diseases (STDs) and food-borne infections. We reflect on the possible drivers and consequences of a decrease in these transmittable infectious diseases linked to human contact in relation to social distancing due to the COVID-19 pandemic in Madrid (Spain).
By hook or by crook: how and why do compound leaves stay curved during development?
Authors: Meroz Yasmine , Silk Wendy K 
Published: August 2020

This article comments on:
Rivière M, Corre Y, Peaucelle A, Derr J, Douady S. 2020. The hook shape of growing leaves results from an active regulatory process. Journal of Experimental Botany 71, 6408–6417.
Massively parallel Bayesian inference for transient gravitational-wave astronomy
Authors: Smith Rory J E , Ashton Gregory , Vajpeyi Avi , Talbot Colm 
Published: August 2020

ABSTRACT
Understanding the properties of transient gravitational waves (GWs) and their sources is of broad interest in physics and astronomy. Bayesian inference is the standard framework for astrophysical measurement in transient GW astronomy. Usually, stochastic sampling algorithms are used to estimate posterior probability distributions over the parameter spaces of models describing experimental data. The most physically accurate models typically come with a large computational overhead which can render data analsis extremely time consuming, or possibly even prohibitive. In some cases highly specialized optimizations can mitigate these issues, though they can be difficult to implement, as well as to generalize to arbitrary models of the data. Here, we investigate an accurate, flexible, and scalable method for astrophysical inference: parallelized nested sampling. The reduction in the wall-time of inference scales almost linearly with the number of parallel processes running on a high-performance computing cluster. By utilizing a pool of several hundreds or thousands of CPUs in a high-performance cluster, the large wall times of many astrophysical inferences can be alleviated while simultaneously ensuring that any GW signal model can be used ‘out of the box’, i.e. without additional optimization or approximation. Our method will be useful to both the LIGO-Virgo-KAGRA collaborations and the wider scientific community performing astrophysical analyses on GWs. An implementation is available in the open source gravitational-wave inference library pBilby (parallel bilby).
Sensitivity studies on the thermal beta+ decay and thermal neutrino decay rates in the one-zone X-ray burst model
Authors: Lau Rita 
Published: August 2020

ABSTRACT
We investigated how the thermal beta+ decay rates and their corresponding neutrino energy loss rates affect the properties of X-ray bursts. Previous studies carried out showed how the beta+ decay rates alone affect the properties of X-ray bursts. Here, we performed the sensitivity studies on neutrino energy loss rates and their impact on X-ray bursts. Furthermore, all the experimental beta+ decay rates related to X-ray bursts were measured. However, the temperature of X-ray bursts can be as high as 1.5 GK. Thus, at such a high temperature, the nuclei can be in excited states due to thermal effects. Experiments cannot directly measure the thermal beta decay rates and thermal neutrino loss rates. We performed sensitivity tests on the thermal beta+ decay rates and their thermal neutrino losses in one-zone X-ray burst models in different ignition conditions. We discovered that beta decays due to thermal effects do affect the light curves in some ignition conditions. The thermal beta decay rates of 68Se also have major effects on the final abundances in most circumstances. We further found that a neutrino energy loss rate of 64Ga has noticeable effects on the light curves of X-ray bursts in general.
Is PSR J0726–2612 a dim isolated neutron star progenitor?
Authors: Özcan Ş , Gençali A A , Ertan Ü 
Published: August 2020

ABSTRACT
The rotational properties and X-ray luminosity of PSR J0726–2612 are close to those of dim isolated neutron stars (XDINs). It was proposed that the source could be the first XDIN with observable pulsed radio emission. We have investigated the long-term evolution of the source to test this possibility in the fallback disc model. Reasonable model curves that can account for the evolution of PSR J0726–2612 consistently with its radio pulsar property are similar to those of high-B radio pulsars with dipole field strength B0 ∼ a few × 1012 G at the pole of the star. In the same model, XDINs are estimated to have relatively weak fields (B0 ≲ 1012 G) locating them well below the pulsar death line. From the simulations, we estimate that PSR J0726–2612 is at an age of t ∼ 5 × 104 yr, and will achieve the rotational properties of a normal radio pulsar within ∼105 yr, rather than the XDIN properties.
Multiple AGN activity during the BCG assembly of XDCPJ0044.0-2033 at z ∼ 1.6
Authors: Travascio A , Bongiorno A , Tozzi P , Fassbender R , De Gasperin F , Cardone V F , Zappacosta L , Vietri G , Merlin E , Bischetti M , Piconcelli E , Duras F , Fiore F , Menci N , Mazzotta P , Nastasi A 
Published: August 2020

ABSTRACT
Undisturbed galaxy clusters are characterized by a massive and large elliptical galaxy at their centre, i.e. the brightest cluster galaxy (BCG). How these central galaxies form is still debated. According to most models, a typical epoch for their assembly is $z$ ∼ 1–2. We have performed a detailed multiwavelength analysis of the core of XMM–Newton Distant Cluster Project (XDCP) J0044.0-2033 (XDCP0044), one of the most massive and densest galaxy clusters currently known at redshift $z$ ∼ 1.6, whose central galaxy population shows high star formation compared to lower z clusters and an X-ray active galactic nuclei (AGN) located close to its centre. SINFONI J-, H-, and KMOS YJ-, H-bands spectroscopic data have been analysed, together with deep archival HST photometric data in F105W, F140W, and F160W bands, Chandra X-ray, radio JVLA data at 1–2 GHz, and ALMA band-6 observations. In the very central region of the cluster (∼70 kpc × 70 kpc), two systems of interacting galaxies have been identified and studied (Complex A and B), with a total of seven confirmed cluster members. These galaxies show perturbed morphologies and three of them show signs of AGN activity. In particular, two type-1 AGN with typical broad lines have been found at the centre of each complex (both of them X-ray obscured and highly accreting with $\rm \lambda _{Edd}\sim 0.4-0.6$), while a type-2 AGN has been discovered in Complex A. The AGN at the centre of Complex B is also detected in X-ray, while the other two are spatially related to radio emission. The three AGN provide one of the closest AGN triple at $z$ &gt; 1 revealed so far with a minimum (maximum) projected distance of 10 (40) kpc. The observation of high star formation, merger signatures, and nuclear activity in the core of XDCP0044 suggests that all these processes are key ingredients in shaping the nascent BCG. According to our data, XDCP0044 could form a typical massive galaxy of $M_{\star }\sim 10^{12} \, \mathrm{M}_{\odot }$, hosting a black hole of $\rm 2 \times 10^8\!-\!10^9 \, \mathrm{M}_{\odot }$, in a time-scale of the order of ∼2.5 Gyr.
tfaw survey – I. Wavelet-based denoising of K2 light curves. Discovery and validation of two new Earth-sized planets in K2 campaign 1
Authors: del Ser D , Fors O 
Published: August 2020

ABSTRACTThe wavelet-based detrending and denoising method tfaw is applied for the first time to EVEREST 2.0-corrected light curves to further improve the photometric precision of almost all K2 observing campaigns (C1–C8, C12–C18). The performance of both methods is evaluated in terms of 6 h combined differential photometric precision (CDPP), simulated transit detection efficiency, and planet characterization in different SNR regimes. On average, tfaw median 6 h CDPP is ${\sim} 30{\rm {per \, cent}}$ better than the one achieved by EVEREST 2.0 for all observing campaigns. Using the transit least-squares (tls) algorithm, we show that the transit detection efficiency for simulated Earth–Sun-like systems is ∼8.5× higher for tfaw-corrected light curves than that for EVEREST 2.0 ones. Using the light curves of two confirmed exoplanets, K2-44 b (high SNR) and K2-298 b (low SNR), we show that tfaw yields better Markov chain Monte Carlo posterior distributions, transit parameters compatible with the catalogued ones but with smaller uncertainties, and narrows the credibility intervals. We use the combination of tfaw’s improved photometric precision and tls enhancement of the signal detection efficiency for weak signals to search for new transit candidates in K2 observing campaign 1. We report the discovery of two new K2-C1 Earth-sized planets statistically validated, using the vespa software: EPIC 201170410.02, with a radius of 1.047$^{+0.276}_{-0.257}\mathrm{ R}_{\oplus }$ planet orbiting an M-type star, and EPIC 201757695.02, with a radius of 0.908$^{+0.059}_{-0.064}\mathrm{ R}_{\oplus }$ planet orbiting a K-type star. EPIC 201757695.02 is the 9th smallest planet ever discovered in K2-C1, and the 39th smallest in all K2 campaigns.
Giant pulses from J1823−3021A observed with the MeerKAT telescope
Authors: Abbate F , Bailes M , Buchner S J , Camilo F , Freire P C C , Geyer M , Jameson A , Kramer M , Possenti A , Ridolfi A , Serylak M , Spiewak R , Stappers B W , Venkatraman Krishnan V 
Published: August 2020

ABSTRACT
The millisecond pulsar J1823−3021A is a very active giant pulse emitter in the globular cluster NGC 6624. New observations with the MeerKAT radio telescope have revealed 14350 giant pulses over 5 h of integration time, with an average wait time of about 1 s between giant pulses. The giant pulses occur in phases compatible with the ordinary radio emission, follow a power-law distribution with an index of −2.63 ± 0.02, and contribute 4 per cent of the total integrated flux. The spectral index of the giant pulses follows a Gaussian distribution centred around −1.9 with a standard deviation of 0.6 and is on average flatter than the integrated emission, which has a spectral index of −2.81 ± 0.02. The waiting times between the GPs are accurately described by a Poissonian distribution, suggesting that the time of occurrence of a GP is independent from the times of occurrence of other GPs. 76 GPs show multiple peaks within the same rotation, a rate that is also compatible with the mutual independence of the GP times of occurrence. We studied the polarization properties of the giant pulses finding, on average, linear polarization only at the 1 per cent level and circular polarization at the 3 per cent level, similar to the polarization percentages of the total integrated emission. In four cases, it was possible to measure the RM of the GPs that are highly variable and, in two cases, is inconsistent with the mean RM of the total integrated pulsar signal.
SEDIGISM-ATLASGAL: dense gas fraction and star formation efficiency across the Galactic disc
Authors: Urquhart J S , Figura C , Cross J R , Wells M R A , Moore T J T , Eden D J , Ragan S E , Pettitt A R , Duarte-Cabral A , Colombo D , Schuller F , Csengeri T , Mattern M , Beuther H , Menten K M , Wyrowski F , Anderson L D , Barnes P J , Beltrán M T , Billington S J , Bronfman L , Giannetti A , Kainulainen J , Kauffmann J , Lee M-Y , Leurini S , Medina S-N X , Montenegro-Montes F M , Riener M , Rigby A J , Sánchez-Monge A , Schilke P , Schisano E , Traficante A , Wienen M 
Published: August 2020

ABSTRACT
By combining two surveys covering a large fraction of the molecular material in the Galactic disc, we investigate the role spiral arms play in the star formation process. We have matched clumps identified by APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) with their parental giant molecular clouds (GMCs) as identified by SEDIGISM, and use these GMC masses, the bolometric luminosities, and integrated clump masses obtained in a concurrent paper to estimate the dense gas fractions (DGFgmc = ∑Mclump/Mgmc) and the instantaneous star formation efficiencies (i.e. SFEgmc = ∑Lclump/Mgmc). We find that the molecular material associated with ATLASGAL clumps is concentrated in the spiral arms (∼60 per cent found within ±10 $\rm {km\,s}^{-1}$ of an arm). We have searched for variations in the values of these physical parameters with respect to their proximity to the spiral arms, but find no evidence for any enhancement that might be attributable to the spiral arms. The combined results from a number of similar studies based on different surveys indicate that, while spiral-arm location plays a role in cloud formation and H i to H2 conversion, the subsequent star formation processes appear to depend more on local environment effects. This leads us to conclude that the enhanced star formation activity seen towards the spiral arms is the result of source crowding rather than the consequence of any physical process.
Excitation of the main giant pulses from the Crab pulsar
Authors: Bespalov Peter A , Savina Olga N 
Published: August 2020

ABSTRACT
A model for the source of microwave main giant pulses (GPs) from the Crab pulsar is proposed and partly investigated. Pulse excitation takes place in a relativistic pair plasma with a strong magnetic field through the beam pulse amplifier (BPA) mechanism, in which short noise pulses of a certain type are amplified by energetic electrons at the Cherenkov resonance, even without strong anisotropy in the distribution function. The wave gain is shown to be as high as with an instability of hydrodynamic type, and wave escaping from the excitation region into the pulsar magnetosphere may not involve significant attenuation. The basic parameters of the source which explains the observed characteristics of the GP electromagnetic bursts have been analysed and are consistent with accepted ideas about physical conditions in the pulsar magnetosphere. The BPA mechanism explains the important properties of the GPs, such as the extremely short pulse duration (extreme nanoshots), the extremely high brightness temperature of the radiation source, the formation of radiation in a wide frequency range, and the possibility of radiation reaching the periphery of the pulsar magnetosphere.