bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optical–Radio Position Offsets Are Inversely Correlated with AGN Photometric Variability
Authors: Secrest Nathan J. 
Published: November 2022

Abstract
Using photometric variability information from the new Gaia DR3 release, I show for the first time that photometric variability is inversely correlated with the prevalence of optical–radio position offsets in the active galactic nuclei (AGNs) that comprise the International Celestial Reference Frame (ICRF). While the overall prevalence of statistically significant optical–radio position offsets is 11%, objects with the largest fractional variabilities exhibit an offset prevalence of only ∼2%. These highly variable objects have redder optical color and steeper optical spectral indices indicative of blazars, in which the optical and radio emission is dominated by a line-of-sight jet, and indeed nearly ∼100% of the most variable objects have γ-ray emission detected by the Fermi Large Area Telescope. This result is consistent with selection on variability preferentially picking jets pointed closest to the line of sight, where the projected optical–radio position offsets are minimized and jet emission is maximally boosted in the observed frame. While only ∼9% of ICRF objects exhibit such large photometric variability, these results suggest that taking source variability into account may provide a means of optimally weighting the optical–radio celestial reference frame link.
Monochromatic Globular Clusters as a Critical Test of Formation Models for the Dark Matter–deficient Galaxies NGC 1052-DF2 and NGC 1052-DF4
Authors: van Dokkum Pieter , Shen Zili , Romanowsky Aaron J. , Abraham Roberto , Conroy Charlie , Danieli Shany , Chowdhury Dhruba Dutta , Keim Michael A. , Kruijssen J. M. Diederik , Leja Joel , Trujillo-Gomez Sebastian 
Published: November 2022

Abstract
It was recently proposed that the dark matter–deficient ultradiffuse galaxies DF2 and DF4 in the NGC 1052 group could be the products of a “bullet dwarf” collision between two gas-rich progenitor galaxies. In this model, DF2 and DF4 formed at the same time in the immediate aftermath of the collision, and a strong prediction is that their globular clusters should have nearly identical stellar populations. Here we test this prediction by measuring accurate V
606 − I
814 colors from deep HST/ACS imaging. We find that the clusters are extremely homogeneous. The mean color difference between the globular clusters in DF2 and DF4 is ΔDF2−DF4 = −0.003 ± 0.005 mag, and the observed scatter for the combined sample of 18 clusters with M
606 < −8.6 in both galaxies is σ
obs = 0.015 ± 0.002 mag. After accounting for observational uncertainties and stochastic cluster-to-cluster variation in the number of red giants, the remaining scatter is

σ

intr

=

0.008

−
0.006

+
0.005

mag. Both the color difference and the scatter are an order of magnitude smaller than in other dwarf galaxies, and we infer that the bullet scenario passes an important test that could have falsified it. No other formation models have predicted this extreme uniformity of the globular clusters in the two galaxies. We find that the galaxies themselves are slightly redder than the clusters, consistent with a previously measured metallicity difference. Numerical simulations have shown that such differences are expected in the bullet scenario, as the galaxies continued to self-enrich after the formation of the globular clusters.
First Results from the JWST Early Release Science Program Q3D: Turbulent Times in the Life of a z ∼ 3 Extremely Red Quasar Revealed by NIRSpec IFU
Authors: Wylezalek Dominika , Vayner Andrey , Rupke David S. N. , Zakamska Nadia L. , Veilleux Sylvain , Ishikawa Yuzo , Bertemes Caroline , Liu Weizhe , Barrera-Ballesteros Jorge K. , Chen Hsiao-Wen , Goulding Andy D. , Greene Jenny E. , Hainline Kevin N. , Hamann Fred , Heckman Timothy , Johnson Sean D. , Lutz Dieter , Lützgendorf Nora , Mainieri Vincenzo , Maiolino Roberto , Nesvadba Nicole P. H. , Ogle Patrick , Sturm Eckhard 
Published: November 2022

Abstract
Extremely red quasars, with bolometric luminosities exceeding 1047 erg s−1, are a fascinating high-redshift population that is absent in the local universe. They are the best candidates for supermassive black holes accreting at rates at or above the Eddington limit, and they are associated with the most rapid and powerful outflows of ionized gas known to date. They are also hosted by massive galaxies. Here we present the first integral field unit observations of a high-redshift quasar obtained by the Near Infrared Spectrograph on board the James Webb Space Telescope (JWST), which targeted SDSS J165202.64+172852.3, an extremely red quasar at z = 2.94. The JWST observations reveal extended ionized gas—as traced by [O iii] λ5007 Å—in the host galaxy of the quasar, its outflow, and the circumgalactic medium. The complex morphology and kinematics imply that the quasar resides in a very dense environment with several interacting companion galaxies within projected distances of 10–15 kpc. The high density of the environment and the large velocities of the companion galaxies suggest that this system may represent the core of a forming cluster of galaxies. The system is a good candidate for a merger of two or more dark matter halos, each with a mass of a few 1013
M
⊙, and potentially traces one of the densest knots at z ∼ 3.
On the Sound Speed in Neutron Stars
Authors: Altiparmak Sinan , Ecker Christian , Rezzolla Luciano 
Published: November 2022

Abstract
Determining the sound speed c

s
in compact stars is an important open question with numerous implications on the behavior of matter at large densities and hence on gravitational-wave emission from neutron stars. To this scope, we construct more than 107 equations of state (EOSs) with continuous sound speed and build more than 108 nonrotating stellar models consistent not only with nuclear theory and perturbative QCD, but also with astronomical observations. In this way, we find that EOSs with subconformal sound speeds, i.e., with

c

s

2

<
1

/

3

within the stars, are possible in principle but very unlikely in practice, being only 0.03% of our sample. Hence, it is natural to expect that

c

s

2

>
1

/

3

somewhere in the stellar interior. Using our large sample, we obtain estimates at 95% credibility of neutron-star radii for representative stars with 1.4 and 2.0 solar masses,

R

1.4

=

12.42

−
0.99

+
0.52

km

,

R

2.0

=

12.12

−
1.23

+
1.11

km

, and for the binary tidal deformability of the GW170817 event,

Λ

˜

1.186

=

485

−
211

+
225

. Interestingly, our lower bounds on the radii are in very good agreement with the prediction derived from very different arguments, namely, the threshold mass. Finally, we provide simple analytic expressions to determine the minimum and maximum values of

Λ

˜

as a function of the chirp mass.
The Hi Mass Function of Star-forming Galaxies at z ∼ 0.35
Authors: Bera Apurba , Kanekar Nissim , Chengalur Jayaram N. , Bagla Jasjeet S. 
Published: November 2022

Abstract
The neutral atomic hydrogen (Hi) mass function (HiMF) describes the distribution of the Hi content of galaxies at any epoch; its evolution provides an important probe of models of galaxy formation and evolution. Here, we report Giant Metrewave Radio Telescope Hi 21 cm spectroscopy of blue star-forming galaxies at z ≈ 0.20–0.42 in the Extended Groth Strip, which has allowed us to determine the scaling relation between the average Hi mass (M
Hi
) and the absolute B-band magnitude (M

B
) of such galaxies at z ≈ 0.35, by stacking the Hi 21 cm emission signals of galaxy subsamples in different M

B
ranges. We combine this M
Hi
− M

B
scaling relation (with a scatter assumed to be equal to that in the local universe) with the known B-band luminosity function of star-forming galaxies at these redshifts to determine the HiMF at z ≈ 0.35. We show that the use of the correct scatter in the M
Hi
− M

B
scaling relation is critical for an accurate estimate of the HiMF. We find that the HiMF has evolved significantly from z ≈ 0.35 to z ≈ 0, i.e., over the last 4 Gyr, especially at the high-mass end. High-mass galaxies, with M
Hi
≳ 1010
M
⊙, are a factor of ≈3.4 less prevalent at z ≈ 0.35 than at z ≈ 0. Conversely, there are more low-mass galaxies, with M
Hi
≈ 109
M
⊙, at z ≈ 0.35 than in the local universe. While our results may be affected by cosmic variance, we find that massive star-forming galaxies have acquired a significant amount of Hi through merger events or accretion from the circumgalactic medium over the past 4 Gyr.
Integrative analysis reveals cryptic speciation linked to habitat differentiation within Albanian populations of the anomalous blues (Lepidoptera, Lycaenidae, Polyommatus Latreille, 1804)
Authors: Parmentier Laurian , Vila Roger , Lukhtanov Vladimir 
Published: November 2022

The Balkan Peninsula is one of the greatest hotspots for biodiversity in Europe. While the region has been investigated thoroughly, some parts remain understudied and may still harbour undiscovered diversity, even in well-studied organisms such as Lepidoptera. Here we investigated the group of the so-called anomalous blue butterflies, also known as ‘brown complex’ of the subgenus Agrodiaetus Hübner, 1822 including the taxa of the entire Polyommatus aroaniensis (Brown, 1976) species complex. This species complex is distributed in the southern part of the Balkan Peninsula and known to be represented by three closely related allopatric species, differentiated by their chromosome numbers (n) and mitochondrial (mt) DNA. These are P. aroaniensis sensu stricto (Southern Greece, Peloponnese, n=47–48; mt haplogroup aroa1), P. timfristos Lukhtanov, Vishnevskaya et Shapoval, 2016 (Central Greece, Attika, n=38, aroa2) and P. orphicus Kolev, 2005 (North-Eastern Greece, Southern Bulgaria, n=41–42, orph1).
Based on an analysis of chromosomal, molecular and morphological markers, we demonstrate that a fourth taxon of this species complex exists in Albania. This taxon possesses the mt haplogroup aroa3, which is the most differentiated within the entire P. aroaniensis species complex, and the karyotype (n=42–43), which differs by one fixed chromosome fission from P. orphicus. The Albanian taxon seems to be ecologically specialised (habitat on dark-coloured, ophiolitic substrate soils) and differs in colouration (wing reflectance) from the others taxa of the P. aroaniensis species group. Based on the evidence here presented and following the current view of the taxonomy of the group, we propose considering the Albanian taxon as a new species, here described as Polyommatus luraesp. nov. At the contact zone between the new species and P. orphicus, in addition to typical ones, we detected specimens with haplogroup orph2, karyotype n=43 and intermediate morphology, which seem to represent P. lurae × P. orphicus hybrids.
Effect of virtual reality training on standing balance in individuals with incomplete spinal cord injury
Authors: Walia S. , Kumar P. , Kataria C. 
Published: November 2022

Recovery of balance ability during standing is one of the primary and essential aims of rehabilitative programs in individuals with incomplete spinal cord injury (iSCI). A sample of ten participants (mean age: 35.7 years, range: 25-63 years) with traumatic or non-traumatic iSCI (AIS grade C or D) and were able to stand with or without the support of an assistive device for a minimum of 2 min were recruited from the rehabilitation department of the Indian Spinal Injuries Centre, New Delhi, India. The participants received Virtual Reality (VR) based balance training for one hour, three times a week for four weeks on the Nintendo Wii gaming console. Participants were assessed three times: pre-intervention, post-intervention and follow-up assessment for the total ellipse area (TEA), total sway perimeter (TSP), sway range (anterior-posterior/medio-lateral (AP/ML)) and limits of stability (LOS). At post-intervention assessment, significant increases in comparison with pre-intervention scores was found in LOS (P=0.00), TEA with eyes open (EO) (P=0.00) and eyes closed (EC) (P=0.00), TSP with EO (P=0.00) and EC (P=0.00), sway range in AP direction (SD-AP) with EO (P=0.01) and EC (P=0.02) and sway range in ML direction (SD-ML) with EO (P=0.02) and EC (P=0.01). At follow-up assessment, a significant improvement in comparison to post intervention scores was found in TEA measured both in EO (P=0.01) and EC conditions (P=0.02), TSP measured with EO (P=0.01) and SD-ML both with EO (P=0.04) and EC (P=0.01). No significant changes were found in LOS (P=0.89), TSP measured with EC (P=0.38) and SD-AP both with EO (P=0.50) and EC (P=1). However, significant improvement was seen on comparing follow-up assessment scores with pre-intervention scores for all variables, such as LOS (P=0.00), TEA in EO (P=0.00) and EC (P=0.00), TSP with EO (P=0.00) and EC (P=0.00), SD-AP with EO (P=0.01) and EC (P=0.02) and SD-ML with EO (P=0.01) and EC (P=0.00). VR-based balance training intervention was able to elicit improvements in balance ability and maintain it during follow-up despite a small training dosage suggesting that it is a promising intervention for standing balance rehabilitation among individuals with iSCI. The VR-based balance training challenges elements of balance, which physical therapists may want to consider when designing a comprehensive rehabilitation program.
Clinical Trials Registry-India: CTRI/2018/12/016814.
Giant Retinal Tears: Long-Term Outcomes of Fellow Eyes
Authors: Sengillo Jesse D. , Smiddy William E. , Yannuzzi Nicolas A. , Flynn Harry W. ,   the Giant Retinal Tear Study Group
Published: November 2022

BACKGROUND AND OBJECTIVE:
Determine clinical characteristics and long-term outcomes of fellow eyes for patients with prior repair of rhegmatogenous retinal detachments due to a giant retinal tear (GRT).

STUDY DESIGN:
Retrospective case series of patients who underwent vitreoretinal surgery between January 2005 and August 2017 for GRT at the Bascom Palmer Eye Institute with a minimum of one year of follow-up information. Patients with a traumatic or post-vitrectomy GRT were excluded. Main outcome measures: Visual acuity and rate of retinal events in fellow eyes.

RESULTS:

The study group included 51 patients; 40 others were excluded due to having less than one year of follow-up (
n
= 27), a history of inciting trauma (
n
= 11), or a GRT occurring post-vitrectomy (
n
= 2). The mean age was 49.9 years (range 14 to 81) and mean follow-up duration was 6.9 years (range 1 to 16). During the follow-up interval, prophylactic laser retinopexy was performed in 5 fellow eyes for retinal breaks (9.8%) and in one fellow eye with a progressing retinoschisis cavity (2.0%). One patient had a previous history of a retinal break in the fellow eye. Vitreoretinal surgery was performed in 6 (11.8%) fellow eyes for rhegmatogenous retinal detachments, of which one was caused by a GRT. Three patients (5.9%) already had a retinal detachment repair in the fellow eye prior to presentation and one patient presented with bilateral giant retinal tear associated retinal detachments (GRT-RDs) at the initial visit. Overall, there was a retinal event in 33.3% of fellow eyes. Myopia was the most commonly documented associated factor (31%), followed by lattice degeneration (22%), and known or suspected inherited vitreoretinopathy (4%).

CONCLUSIONS:
Retinal tears and/or detachments were encountered relatively frequently in the fellow eye of patients with a history of GRT-RD during follow-up, but the rate of GRTs in the fellow eye (4%) was below what has been generally reported in the literature. Regular dilated fundus exams are warranted for patients with a history of GRT.

[
Ophthalmic Surg Lasers Imaging Retina
2022;53:619–625.]
Protocole de préparation et de republication des données du BRGM sur les formations à silicites
Authors: Tufféry Christophe , Delvigne Vincent , Fernandes Paul , Garniaux Jérémy 
Published: November 2022

Les données sont issues des travaux de quatre PCR : « Réseau de lithothèques en Centre-Val-de-Loire », « Réseau de lithothèques en Nouvelle Aquitaine » « Réseau de lithothèques en Auvergne Rhône-Alpes » « Les Silicites Cénozoïques d’Ile de France » et du GDR « SILEX ». Ces travaux s’appuient sur une méthode commune de production et de validation. Elles permettent une description harmonisée des formations à silicites par départements à partir des données de la Bd Charm-50 du BRGM (source : site Infoterre1). Les données sont également consultables depuis un logiciel de SIG sous la forme de webservices de type WFS (ArcGis Feature Service).
Application of a modified Poisson model in identifying factors associated with prevalence of pregnancy termination among women aged 15 – 49 years in Uganda
Authors: Mwebesa Edson , Nakafeero Mary , Guwatudde David , Mbona Tumwesigye Nazarius 
Published: November 2022

Background: Abortion in Uganda is illegal, only permitted when it places the pregnant mother at risk. This study aimed to apply the modified Poisson model in identifying factors associated with the prevalence of pregnancy termination among women of reproductive age in Uganda.
Methods: The 2016 Uganda Demographic Health Survey (UDHS) data were used in this study. More than 18,000 women of the age of 15 – 49 years participated in this study. A modified Poisson model that incorporated sampling weights was used to establish the factors associated with pregnancy termination.
Results: In Uganda, 18,506 (18.1%) had ever had a pregnancy terminated. The results revealed that, the woman’s age [APR = 3.15, 95% CI: 2.72-3.63], being married [APR = 1.55, 95% CI: 1.40-1.71], mass media exposure [APR = 1.18, 95% CI: 1.08-1.29], working status [APR = 1.21, 95% CI: 1.09-1.35], and having visited a health facility [APR = 1.20, 95% CI: 1.10-1.31] were positively significantly associated with likelihood of pregnancy termination.
Conclusion: There exists a significant proportion of women who have had their pregnancies terminated in Uganda. It is observed that woman’s age, marital status, mass media exposure, having visited a health facility in the last 12 months and working status were main predictors. Based on these results, researchers concluded that the emphasis should be put on improving access to post-abortion care, contraceptive use and media exposure.
Keywords: Abortion; Pregnancy termination; maternal mortality; Poisson; Contraceptive; Radio.
An examination of variables associated with breast cancer early detection behaviors of women
Authors: Kayan Sultan , Ozen Cinar Ilgun 
Published: November 2022

Background: Breast cancer is a worldwide common public health problem, and it is quite important to know the factors preventing the early detection behaviors to fight against it.
Objective: The aim of the study was to examine the effect of some sociodemographic variables associated with women's breast cancer detection behaviors and their breast cancer knowledge and fear levels.
Methods: The cross-sectional study was conducted with 363 women aged 40-69 who had presented to Cancer Early Diagnosis and Education Centers (CEDEC).
Results: The average age of women is 54.8±7.1. The mean score of breast cancer knowledge (CBCKT) was found as 10.72±2.34, and the breast cancer fear score was found as 27.6±6.5. The percentage of women who regularly breast self-examination (BSE) was 17.4%, clinical breast examination (CBE) was 13.5% and mammography was 42.7%. BSE and having a higher education correlated 6.25-fold. A 6.5-fold correlation was found between BSE and having a family history of breast cancer, and a 6.24-fold correlation between BSE and having information about breast cancer. In CBE, the related variables that affected women receiving information 4.42 times and going to CEDEC 5.3 times. It was found that employment (4.58) of women affected the mammography detection behavior mostly. While women's CBCKT score affected BSE behavior 1.16 times, fear of breast cancer was a variable that affected mammography behavior 2.1 times. It was determined that high CBCKT scores of women increased BSE behaviors 1.16 times, and high breast cancer fear scores increased mammography behavior 2.1 times.
Conclusions: Early detection practices of women are not sufficient in our study. An increase in the knowledge level of women and consideration of the variables determined to be effective in early detection behaviors will allow increasing detection behavior.
Keywords: Breast cancer fear; breast cancer knowledge; early detection; mammography.
Comorbid anxiety and depression among women receiving care for breast cancer: analysis of prevalence and associated factors
Authors: Kugbey Nuworza 
Published: November 2022

Background: Living with breast cancer has been associated with increased risk for common mental health problems including depression and anxiety. However, the prevalence of comorbid anxiety and depression (CAD) and their associated factors havereceived little attention especially in low- and middle-income countries (LMICs) including Ghana.
Objectives: This study examined the prevalence of CAD and its correlates in the context of breast cancer.
Methods: Participants were 205 women receiving care for breast cancer at a Tertiary Hospital in Ghana. The Hospital Anxiety and Depression Scale (HADS) and socio-demographic questionnaires were administered to the participants.
Results: Findings from the study showed that the prevalence of CAD, anxiety and depression was 29.4%, 48.5% and 37.3% respectively. CAD was significantly predicted by patients’ English language reading ability, shared decision making and good doctor-patient relationship. Anxiety was significantly predicted by shared decision making and good doctor-patient relationship whereas depression was significantly predicted educational status, patients’ English language reading ability, shared decision making and good doctor-patient relationship.
Conclusion: The findings suggest relatively high prevalence of comorbid anxiety and depression which could negatively impact breast cancer treatment outcomes and therefore, improved interpersonal relationships between doctors and their patients as well as literacy skills are warranted.
Keywords: Breast cancer; depression; anxiety; doctor-patient relationship; shared decision making; Ghana.
The Knowledge of Palliative Care among Geriatric Home Staff in Jordan
Authors: M Saleh Ahmad , M Alrawaili Saud , A El-Sakhawy Mohamed , Kamal Abdelbasset Walid 
Published: November 2022

Background: Palliative care in nursing homes (NHS) is a major challenge, because it gives the demands of the knowledge and skills of nursing staff to provide high-quality care.
Purpose: The purpose of this study was to assess the knowledge of palliative care among nursing home staff.
Methods: A descriptive study design was used, 124 nurses, aged over 30 years and most of them were male working in the nursing home in Jordan. Around 109 participants were responded to the questionnaire. All licensed nurses were included in the study, except of that will be excluded. The knowledge of palliative care was measured via the palliative care survey. knowledge scores were ranged 0–1, with higher scores indicate greater knowledge.
Results: Descriptive statistics was used. The Knowledge of palliative care issues is 0.21 in Jordan (95% confidence interval (CI) 0.19-0.24). Knowledge of physical aspects that can contribute to pain is 0.22 (95% CI 0.2-0.25), and knowledge of psychological aspects that can contribute to pain is 0.21 (95% CI 0.2-0.22).
Conclusion: Education for nursing staff needs to be enhanced to address the specific knowledge gaps. Additional studies with large sample size recommended to explore the effect of educational programs in regard of palliative care in nursing homes.
Keywords: Knowledge; Palliative Care; Palliative Medicine; Nursing Staff; Cross-Sectional Study; Life Support Care.