bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatial variation and transport of abundant copepod taxa in the southern Gulf of St. Lawrence in autumn
Authors: SOROCHAN K A , BRENNAN C E , PLOURDE S , JOHNSON C L 
Published: September 2021

Abstract
The spatial distribution of zooplankton is influenced by complex interactions among population dynamics, vertical positioning and advection. We used empirical observations and particle tracking simulations to investigate variation in horizontal distribution of Calanus spp. and three neritic copepod taxa (Acartia spp., Pseudocalanus sp. and Temora longicornis) in the southern Gulf of St. Lawrence (sGSL) in October 2018. These copepods are potential prey for fish and the endangered North Atlantic right whale, Eubalaena glacialis. We quantified horizontal variation in abundance from a plankton survey, and obtained vertical distributions from a subset of locations and a process study conducted over ~1 day. Horizontal distributions of Calanus finmarchicus and Pseudocalanus sp. were widespread, whereas those of Calanus hyperboreus and C. glacialis were centred in the interior of the sGSL and those of Acartia spp. and T. longicornis were centred on the western side. Horizontal distributions of C. hyperboreus–C. glacialis and C. finmarchicus–Pseudocalanus sp. pairs were highly correlated. Contrasting distributions among C. finmarchicus and its congeners reflect interspecific differences in life history strategy and its interaction with ocean circulation. In autumn, a shift to increased current strength and flow-through circulation may lead to enhanced losses of Calanus spp. in the absence of upstream replenishment.
Do Terrorists Get the Attention They Want?
Authors: Nussio Enzo , Böhmelt Tobias , Bove Vincenzo 
Published: September 2021

Abstract
Terrorists aim at influencing audiences beyond their immediate victims, but can only achieve this if an attack receives sufficient public attention. Previous research shows that terrorism can affect public opinion, but these studies are mainly based on emblematic single cases and relate to varying measures of influence, which are difficult to compare. This research focuses on the first-order effect of terrorism: attention. To analyze whether terrorists get attention, we combine a quasi-experimental approach for causal identification with a comparative design. We compile data from Eurobarometer surveys and contrast responses of more than 80,000 individuals surveyed before and after five diverse Islamist attacks in Europe in 2013–2019. Attention to terrorism increases in all targeted countries, regardless of attack size. Yet, while all incidents raise attention to terrorism, only larger attacks exert a meaningful impact across Europe.
Correspondence between isoscalar monopole strengths and $\alpha$ inelastic cross sections on 24Mg
Authors: Ogata Kazuyuki , Chiba Yohei , Sakuragi Yukinori 
Published: September 2021

Abstract
The correspondence between the isoscalar monopole (IS0) transition strengths and $\alpha$ inelastic cross sections, the $B({\rm IS0})$–$(\alpha,\alpha')$ correspondence, is investigated for $^{24}$Mg($\alpha,\alpha'$) at 130 and 386 MeV. We adopt a microscopic coupled-channel reaction framework to link structural inputs, diagonal and transition densities, for $^{24}$Mg obtained with antisymmetrized molecular dynamics to the ($\alpha,\alpha'$) cross sections. We aim at clarifying how the $B({\rm IS0})$–$(\alpha,\alpha')$ correspondence is affected by the nuclear distortion, the in-medium modification to the nucleon–nucleon effective interaction in the scattering process, and the coupled-channel effect. It is found that these effects are significant and the explanation of the $B({\rm IS0})$–$(\alpha,\alpha')$ correspondence in the plane wave limit with the long-wavelength approximation, which is often used, makes no sense. Nevertheless, the $B({\rm IS0})$–$(\alpha,\alpha')$ correspondence tends to remain because of a strong constraint on the transition densities between the ground state and the $0^+$ excited states. The correspondence is found to hold at 386 MeV with an error of about 20%–30%, while it is seriously compromised at 130 MeV, mainly by the strong nuclear distortion. It is also found that when a $0^+$ state that has a different structure from a simple $\alpha$ cluster state is considered, the $B({\rm IS0})$–$(\alpha,\alpha')$ correspondence becomes less valid. For a quantitative discussion on the $\alpha$ clustering in $0^+$ excited states of nuclei, a microscopic description of both the structure and reaction parts will be necessary.
Safety, Feasibility, and Outcomes of Frequent, Long-Duration Rehabilitation in an Inpatient Rehabilitation Facility After Prolonged Hospitalization for Severe COVID-19: An Observational Study
Authors: Vickory Frank , Ridgeway Kyle , Falvey Jason , Houwer Beth , Gunlikson Jennifer , Payne Katherine , Niehaus William 
Published: September 2021

Abstract

Objective
he objective of this study was to evaluate safety, feasibility, and outcomes of 30 patients within an inpatient rehabilitation facility following hospitalization for severe Coronavirus Disease 19 (COVID-19) infection.

Methods
This was an observational study of 30 patients (ages 26–80 years) within a large, metropolitan, academic hospital following hospitalization for complications from severe COVID-19. Ninety percent of the participants required critical care, and 83% required mechanical ventilation during their hospitalization. Within an inpatient rehabilitation facility and model of care, frequent, long-duration rehabilitation was provided by occupational therapists, physical therapists, and speech language pathologists.

Results
The average inpatient rehabilitation facility length of stay was 11 days (ranging from 4–22 days). Patients averaged 165 min/d (ranging from 140–205 minutes) total of physical therapy, occupational therapy, and speech therapy. Twenty-eight of the 30 patients (93%) were discharged to the community. One patient required readmission from an inpatient rehabilitation facility to an acute hospital. All 30 patients improved their functional status with inpatient rehabilitation.

Conclusion
In this cohort of 30 patients, inpatient rehabilitation after severe COVID-19 was safe and feasible. Patients were able to participate in frequent, long-duration rehabilitation with nearly all patients discharging to the community. Clinically, inpatient rehabilitation should be considered for patients with functional limitations following severe COVID-19. Given 90% of our cohort required critical care, future studies should investigate the efficacy and effectiveness of inpatient rehabilitation following hospitalization for critical illness. Frequent, long-duration rehabilitation shows promising potential to address functional impairments following hospitalization for severe COVID-19.

Impact
Inpatient rehabilitation facilities should be considered as a discharge location for hospitalized survivors of COVID-19, especially severe COVID-19, with functional limitations precluding community discharge. Clinicians and administrators should consider inpatient rehabilitation and inpatient rehabilitation facilities to address the rehabilitation needs of COVID-19 and critical illness survivors.
Responsiveness and Minimal Clinically Important Difference of the Brief-BESTest in People With COPD After Pulmonary Rehabilitation
Authors: Paixão Cátia , Rebelo Patrícia , Oliveira Ana , Jácome Cristina , Cruz Joana , Martins Vitória , Simão Paula , Marques Alda 
Published: September 2021

Abstract

Objective
he Brief-Balance Evaluation Systems Test (Brief-BESTest) is a comprehensive, reliable, and valid balance test that provides valuable information to guide balance training in people with chronic obstructive pulmonary disease (COPD). Its clinical interpretability is, however, currently limited, because cutoff points to identify clinically relevant changes in people with COPD after pulmonary rehabilitation are still lacking. This study aimed to establish the responsiveness and minimal clinically important difference (MCID) for the Brief-BESTest in people with COPD after pulmonary rehabilitation (PR).

Methods
A secondary analysis of data from 2 previous studies was conducted. The modified British Medical Research Council (mMRC) dyspnea scale, the 6-Minute Walk Test (6-MWT), and the Brief-BESTest (0–24 points) were collected in people with COPD pre/post a 12-week PR program including balance training. The MCID was computed using anchor- and distribution-based methods. Changes in the 6-MWT and the mMRC were assessed and used as anchors. The pooled MCID was computed using the arithmetic weighted mean (2/3 anchor- and 1/3 distribution-based methods).

Results
Seventy-one people with COPD (69 years [SD = 8]; 76% male; FEV1 = 49.8%predicted [SD = 18%]) were included. There was a significant improvement in the Brief-BESTest after PR (mean difference = 3 points [SD = 3]). Significant correlations were found between the Brief-BESTest and the mMRC (r = −.31) and the 6-MWT (r = .37). The pooled MCID was 3.3 points.

Conclusion
An improvement of at least 3 points in the Brief-BESTest in people with COPD will enhance the interpretability of PR effects on balance performance of this population and guide tailored interventions.

Impact
The Brief-BESTest outcome measure is comprehensive, easily administered, and simple to interpret in clinical practice. This study represents a significant contribution toward the clinical interpretation of changes in balance in people with COPD following PR.
On wave generation by a submerged oscillating source over Roseau’s beach profile with outline application to a scattering problem
Authors: Ehrenmark Ulf 
Published: September 2021

SummaryThe exact solution for linearised water wave motion over a specific curved bottom beach profile, developed by Roseau in his book Asymptotic Wave Theory (North-Holland 1976) is here generalised to account also for the insertion of a submerged oscillating line source randomly placed above the beach. An explicit expression is obtained for the associated velocity potential in various scenarios. In particular, the one where the wave field at infinity is devoid of incoming waves allows Sretenski’s (Prikl. Mat. Meh. 27 (1963) 1012–1025) established discovery on how the source is made invisible at long distances by its strategic placement, to be verified by the asymptotic theory. Meanwhile, the opportunity is taken to construct the solution in the form of a Green’s function and its use is exemplified with a detailed guide to solving a problem of waves attacking a finite floating dock above the Roseau profile. The symmetry property of the Green’s function is verified numerically thereby providing a robust check on the validity of the procedures used in computation and leaving the reader with a tool to explore a number of different problems over this curved beach such as might be required from time to time to validate and calibrate more detailed computational models ultimately designed for application with a wide variety of bottom profiles.
Apollonius Surfaces, Circumscribed Spheres of Tetrahedra, Menelaus’s and Ceva’s Theorems in S2 × R and H2 × R Geometries
Authors: Szirmai Jenő 
Published: September 2021

Abstract
In the present paper we study $\mathbf{S}^2\!\times\!\mathbf{R}$ and $\mathbf{H}^2\!\times\!\mathbf{R}$ geometries, which are homogeneous Thurston 3-geometries. We define and determine the generalized Apollonius surfaces and with them define the ‘surface of a geodesic triangle’. Using the above Apollonius surfaces we develop a procedure to determine the centre and the radius of the circumscribed geodesic sphere of an arbitrary $\mathbf{S}^2\!\times\!\mathbf{R}$ and $\mathbf{H}^2\!\times\!\mathbf{R}$ tetrahedron. Moreover, we generalize the famous Menelaus’s and Ceva’s theorems for geodesic triangles in both spaces. In our work we will use the projective model of $\mathbf{S}^2\!\times\!\mathbf{R}$ and $\mathbf{H}^2\!\times\!\mathbf{R}$ geometries described by E. Molnár in [6].
Fourier Optimization and Quadratic Forms
Authors: Chirre Andrés , Quesada-Herrera Emily 
Published: September 2021

AbstractWe prove several results about integers represented by positive definite quadratic forms, using a Fourier analysis approach. In particular, for an integer $\ell\ge 1$, we improve the error term in the partial sums of the number of representations of integers that are a multiple of $\ell$. This allows us to obtain unconditional Brun–Titchmarsh-type results in short intervals and a conditional Cramér-type result on the maximum gap between primes represented by a given positive definite quadratic form.
Ratings-Driven Demand and Systematic Price Fluctuations
Authors: Ben-David Itzhak , Li Jiacui , Rossi Andrea , Song Yang 
Published: September 2021

Abstract
We show that mutual fund ratings generate correlated demand that creates systematic price fluctuations. Mutual fund investors chase fund performance via Morningstar ratings. Until June 2002, funds pursuing the same investment style had highly correlated ratings. Therefore, rating-chasing investors directed capital into winning styles, generating style-level price pressures, which reverted over time. In June 2002, Morningstar reformed its methodology of equalizing ratings across styles. Style-level correlated demand via mutual funds immediately became muted, significantly altering the time-series and cross-sectional variation in style returns.
IgA anti-citrullinated protein antibodies are associated with flares during DMARD tapering in rheumatoid arthritis
Authors: Sokolova Maria V , Hagen Melanie , Bang Holger , Schett Georg , Rech Juergen , Steffen Ulrike ,   the RETRO study group, Haschka Judith , Englbrecht Matthias , Hueber Axel J , Manger Bernhard , Kleyer Arnd , Reiser Michaela , Finzel Stephanie , Tony Hans-Peter , Kleinert Stefan , Feuchtenberger Martin , Fleck Martin , Manger Karin , Ochs Wolfgang , Schmitt-Haendle Matthias , Wendler Joerg , Schuch Florian , Ronneberger Monika , Lorenz Hanns-Martin , Nuesslein Hubert , Alten Rieke , Demary Winfried , Henes Joerg 
Published: September 2021

Abstract

Objectives
A substantial proportion of RA patients flare upon withdrawal of DMARDs, and thus the definition of prognostic markers is crucial. ACPA positivity has been identified as a risk factor for flare. However, only the role of IgG ACPA is established in this context, while the role of IgA ACPA is poorly defined. We thus aimed to investigate the role of IgA ACPA in flaring of RA.

Methods
Serum levels of IgA1 and IgA2 ACPA at baseline and after 12 months were measured in 108 patients from the randomized controlled RETRO study. RA patients in stable remission for at least 6 months at study recruitment were assigned to either one of the DMARD tapering arms or to continuation of DMARDs.

Results
In patients remaining in remission but not in the ones who flared, IgA2 ACPA levels and proportion of IgA2 in ACPA (IgA2% ACPA) significantly declined (median of 17.5%; P &lt; 0.0001). This seemed to be independent of the treatment choice, as there was no difference in IgA2 ACPA dynamics between the study arms. IgA2% ACPA was associated with disease activity (DAS28) at flare (r = 0.36; P = 0.046). IgA and IgG ACPA showed a tendency towards independent contribution to the risk of flare with the highest risk if a patient had both antibody classes.

Conclusion
In this study, IgA ACPA was identified as a risk factor for flare in combination with IgG ACPA. IgA2 ACPA levels were associated with flare severity and declined in patients in stable remission.
IL-23 and axial disease: do they come together?
Authors: Mease Philip , van den Bosch Filip 
Published: September 2021

Abstract
IL-23 is a key cytokine in the pathogenesis of spondyloarthritides, including PsA and axial spondyloarthritis, as well as related conditions, such as psoriasis and IBD. Genetic associations, animal models and translational studies in humans demonstrate the key role played by IL-23, especially when coupled with downstream overexpression of IL-17 via stimulation of T helper 17 (Th17) and other cells by IL-23. Whereas IL-23 inhibition has shown clear-cut benefit in psoriasis and peripheral manifestations of PsA, trials of IL-23 inhibitors have failed in the treatment of ankylosing spondylitis. More recently, exploratory data from PsA patients with axial symptoms suggests that improvement may occur, but needs confirmation in dedicated axial spondyloarthritis (axSpA) trials. Hypotheses for these apparently conflicting findings about IL-23 inhibition in various forms of spondylitis are discussed.
The Distress Anomaly is Deeper than You Think: Evidence from Stocks and Bonds
Authors: Avramov Doron , Chordia Tarun , Jostova Gergana , Philipov Alexander 
Published: September 2021

Abstract
The distress anomaly reflects the abnormally low returns of high credit risk stocks during financial distress. Evidence from stocks and corporate bonds reinforces the anomaly and challenges rationales based on shareholders’ ability to extract value from bondholders, time-varying betas, lottery-type preferences, biased earnings expectations, and limits-to-arbitrage. Moreover, mispricing of distressed stocks and bonds is associated with excess investment and excess external financing. Potential real distortions are materially understated when assessed based only on equity mispricing. We emphasize the important role of corporate bonds in dissecting the distress anomaly, and show that the anomaly is an unresolved puzzle.
ESTIMATION OF RADIATION RISK AND ESTABLISHMENT OF DIAGNOSTIC REFERENCE LEVELS FOR PATIENTS UNDERGOING COMPUTED TOMOGRAPHY CHEST–ABDOMEN–PELVIC EXAMINATIONS IN SUDAN
Authors: Elnour Abdel-Rahman , Barakat Mustafa , Tamam Nissren , Sulieman Abdel-Moneim , Dinar Hussien , Abuzaid Mohamed M 
Published: September 2021

Abstract
Establishment of diagnostic reference levels (DRLs) is an essential radiation optimization tool used to indicate optimum practice and radiation protection. This study aimed to report the current computed tomography (CT) of the chest–abdomen–pelvis radiation practice in Sudan as a part of the DRL establishment effort and dose optimization. CT radiation doses were collected from 530 patients of age ranging between 28 and 85 y and body weight ranging between 65 and 120 kg. DRLs were calculated based on the 75th percentile of dose length product (DLP) and CT dose index volume (CTDIvol). Effective and organ doses were calculated using the National Cancer Institute dosimetry system for the CT programme. The proposed DRLs are CTDIvol, 6 mGy, and DLP, 970 mGy.cm, and an effective dose of 9.9 mSv. Organ dose estimation showed that the thyroid received the highest dose during the scan.
Re-Thinking Protection for LGBTI Refugees in Kampala, Uganda: A Relational, Trust-Based Approach
Authors: Sinclair David , Sinatti Giulia 
Published: September 2021

Abstract
This article problematises protection for lesbian, gay, bisexual, transgender, and intersex (LGBTI) refugees in contexts of state-condoned persecution against this group. Based on ethnographic evidence from Kampala, Uganda, we draw attention to the homogenising tendencies of centralised protection systems in cities in the global south, which are primarily centred on nationality-based communities. We examine the processes of social exclusion that limit the involvement of LGBTI refugees from the Great Lakes Region in such communities, de facto placing them outside the parameters of institutional refugee protection. We then focus on their relational experiences of protection and safety within the office of an LGBTI support group in Kampala and argue for a micro-level approach that considers how LGBTI refugee protection is grounded in the geopolitics of the everyday. Our findings underscore the limitations of institutional policy and practice, which continues to overlook the protection gap that exists for LGBTI persons within the refugee population in Uganda. In order to remedy this protection gap, we suggest that a critical reconsideration is needed of the participatory spaces and cooperation between LGBTI refugee-led advocates and refugee serving institutions and decision-makers.
Reason-giving for resistance: obfuscation, justification and earmarking in resisting informal financial assistance
Authors: McNeill Kristen , Pierotti Rachael 
Published: September 2021

AbstractMonetary assistance is a common request from social ties and can be both an economic lifeline and a financial burden. This study examines the relational work at the heart of such exchanges, examining when and how attempts at mobilizing informal financial assistance are resisted. Using qualitative data from West African factory workers, we demonstrate that individuals who wish to resist the provision of assistance without causing relational damage employ rhetorical strategies designed to justify or obfuscate their refusal, relying heavily on socially legitimate reason-giving. The findings reveal that subjective calculations of resource availability are central to the mobilization of assistance, resistant givers differentiate between justification and obfuscation of refusals, and earmarks can play a role in protecting resources from social demands. More broadly, these findings suggest ways that a differential ability to resist social capital mobilization may generate inequalities within social groups.
‘Authorized to Depart from the Law’
Authors: Nguyen Duc Tien 
Published: September 2021

Abstract
The COVID-19 pandemic has posed myriad brain-wracking questions to decision-makers at all levels. Viet Nam managed to curb mortality and morbidity to praiseworthy levels in the past COVID-19 waves, however, has now had its back against the wall amidst the recent exponential infection cases and draining medical resources. For swiftly flattening the curve, the legislature authorized the Government to take bolder steps where needed, even different from the laws. This article argues that while the empowerment comes from the goodwill of the legislature for the purpose of containing the raging outbreak, there remain procedural irregularities. This should garner more attention from the state authority to ensure the rule of law and legality of all state actions during the time of public health emergency.
Excluding Loci With Substitution Saturation Improves Inferences From Phylogenomic Data
Authors: Duchêne David A , Mather Niklas , Van Der Wal Cara , Ho Simon Y W 
Published: September 2021

AbstractThe historical signal in nucleotide sequences becomes eroded over time by substitutions occurring repeatedly at the same sites. This phenomenon, known as substitution saturation, is recognized as one of the primary obstacles to deep-time phylogenetic inference using genome-scale data sets. We present a new test of substitution saturation and demonstrate its performance in simulated and empirical data. For some of the 36 empirical phylogenomic data sets that we examined, we detect substitution saturation in around 50% of loci. We found that saturation tends to be flagged as problematic in loci with highly discordant phylogenetic signals across sites. Within each data set, the loci with smaller numbers of informative sites are more likely to be flagged as containing problematic levels of saturation. The entropy saturation test proposed here is sensitive to high evolutionary rates relative to the evolutionary timeframe, while also being sensitive to several factors known to mislead phylogenetic inference, including short internal branches relative to external branches, short nucleotide sequences, and tree imbalance. Our study demonstrates that excluding loci with substitution saturation can be an effective means of mitigating the negative impact of multiple substitutions on phylogenetic inferences. [Phylogenetic model performance; phylogenomics; substitution model; substitution saturation; test statistics.]