bluuebunny/crossref_metadata_2025_split huggingface dataset:
LEER ES CICATRIZAR
Authors: Rivero Giovanna 
Published: February 2023

En este ensayo, la escritora boliviana Giovanna Rivero reflexiona sobre el tema de la “sutura” y qué lugar ocupa en su trabajo literario. Por medio de anécdotas biográficas, reflexiona sobre su escritura como un ejercicio de sutura y hace un repaso de su formación como lectora y da cuenta de la génesis de algunos de sus cuentos de los libros
Sangre dulce
(2006) y
Para comerte mejor
(2015) habían sido reescrituras de aquellas composiciones escolares.

https://doi.org/10.3828/revista.2023.89.282-283.91
La escritora venezolana Gisela Kozak Rovero repasa su labor como escritora en los últimos treinta años, haciéndolo en diversos registros: literario, académico, periodístico y político. Reflexiona sobre sus comienzos como escritora de ficción en la Venezuela de finales de los años ochenta en un medio literario machista y centrado en la capital del país. A lo largo del ensayo, Kozak Rovero incluye a otras escritoras venezolanas y los lugares que ocupan en el canon literario, proponiendo así una interesante cartografía de la literatura venezolana escrita por mujeres. El tema LGBTQ y su condición de lesbiana asumida públicamente en un medio intelectual y editorial son también eje de su reflexión. La situación política del país y su autoexilio en México cierran el ensayo y ofrecen nuevas dimensiones de sentido a la idea de “mutante” que abría este ensayo.
Three Ultra-short-period Contact Eclipsing Binary Systems Mined from Massive Astronomical Surveys
Authors: Papageorgiou Athanasios , Christopoulou Panagiota-Eleftheria , Ferreira Lopes C. E. , Lalounta Eleni , Catelan Márcio , Drake Andrew J. 
Published: February 2023

Abstract
We present the photometric analysis of three ultra-short-period total eclipsing binaries in contact configuration, CRTS_J172718.0+431624, OGLE-BLG-ECL-000104, and OGLE-BLG-ECL-000012, mined from massive astronomical surveys. Using the available archival light curves (LCs) from Vista Variables in the Vía Láctea (VVV), Optical Gravitational Lensing Experiment (OGLE), Zwicky Transient Facility, and Catalina Sky Survey in different passbands and new multiband photometric observations with the 2.3 m Aristarchos telescope at Helmos Observatory, their relative physical parameters were derived. We explored the parameter space by using the PIKAIA genetic algorithm optimizer. The best photometric solution and error budget estimation were adopted for each system through Markov Chain Monte Carlo sampling of the global optimum. The approximate absolute parameters were derived for each contact system adopting an empirical mass–luminosity relation. All three systems have a mass ratio lower than 0.5. The exchange between the primary and secondary depths of CRTS_J172718.0+431624 during 2016–2022 may be due to spot activity. In addition, we present a detailed analysis of the first well-characterized shortest-period contact eclipsing binary with total eclipses known so far (OGLE-BLG-ECL-000104). Thanks to VVV and OGLE LCs, new distances were derived for OGLE-BLG-ECL-000104 and OGLE-BLG-ECL-000012 using empirical period–luminosity relations. The origin and evolutionary status of all three ultra-short-period contact binaries are thoroughly discussed in the context of the detached binary formation channel.
Polarized Maser Emission with In-source Faraday Rotation
Authors: Tobin T. L. , Gray M. D. , Kemball A. J. 
Published: February 2023

Abstract
We discuss studies of polarization in astrophysical masers with particular emphasis on the case where the Zeeman splitting is small compared to the Doppler profile, resulting in a blend of the transitions between magnetic substates. A semiclassical theory of the molecular response is derived, and coupled to radiative transfer solutions for 1 and 2-beam linear masers, resulting in a set of nonlinear, algebraic equations for elements of the molecular density matrix. The new code, PRISM, implements numerical methods to compute these solutions. Using PRISM, we demonstrate a smooth transfer between this case and that of wider splitting. For a J = 1–0 system, with parameters based on the v = 1, J = 1–0 transition of SiO, we investigate the behavior of linear and circular polarization as a function of the angle between the propagation axis and the magnetic field, and with the optical depth, or saturation state, of the model. We demonstrate how solutions are modified by the presence of Faraday rotation, generated by various abundances of free electrons, and that strong Faraday rotation leads to additional angles where the Stokes Q changes sign. We compare our results to a number of previous models, from the analytical limits derived by Goldreich, Keeley, and Kwan in 1973, through computational results by W. Watson and coauthors, to the recent work by Lankhaar and Vlemmings in 2019. We find that our results are generally consistent with those of other authors given the differences in the approach and the approximations made.
Study of Radio Transients from the Quiet Sun during an Extremely Quiet Time
Authors: Mondal Surajit , Oberoi Divya , Biswas Ayan 
Published: February 2023

Abstract
In this work, we study a class of recently discovered meter-wave solar transients referred to as Weak Impulsive Narrowband Quiet Sun Emission (WINQSEs). Their strength is a few percent of the quiet Sun background and is characterized by their very impulsive, narrowband, and ubiquitous presence in quiet Sun regions. Mondal et al. (2020) hypothesized that these emissions might be the radio counterparts of nanoflares, and their potential significance warrants detailed studies. Here we present an analysis of data from an extremely quiet time and with improved methodology over the previous work. As before, we detect numerous WINQSEs, which we have used for their further characterization. Their key properties, namely, their impulsive nature and ubiquitous presence in the quiet Sun, are observed in these data as well. Interestingly, we also find some of the observed properties to differ significantly from the earlier work. With this demonstration of routine detection of WINQSEs, we hope to engender interest in the larger community to build a deeper understanding of WINQSEs.
A Decade of Linear and Circular Polarimetry with the POLISH2 Polarimeter
Authors: Wiktorowicz Sloane J. , Słowikowska Agnieszka , Nofi Larissa A. , Rider Nicole , Wolfgang Angie , Hermis Ninos , Jontof-Hutter Daniel , Bayless Amanda J. , Cole Gary M. , Crawford Kirk B. , Tsarev Valeri V. , Owens Michael C. , Jaramillo Ernest G. , Maul Geoffrey A. , Graham James R. , Millar-Blanchaer Maxwell A. , Bott Kimberly , Mauerhan Jon C. 
Published: February 2023

Abstract
The POLISH2 optical polarimeter has been in operation at the Lick Observatory 3 m Shane telescope since 2011, and it was commissioned at the Gemini North 8 m in 2016. This instrument primarily targets exoplanets, asteroids, and the Crab Pulsar, but it has also been used for a wide variety of planetary, galactic, and supernova science. POLISH2's photoelastic modulators, employed instead of rotating wave plates or ferroelectric liquid crystal modulators, offer the unprecedented ability to achieve sensitivity and accuracy of order 1 ppm (0.0001%), which are difficult to obtain with conventional polarimeters. Additionally, POLISH2 simultaneously measures the intensity (Stokes I), linear polarization (Stokes Q and U), and circular polarization (Stokes V), which fully describe the polarization state of incident light. We document our laboratory and on-sky calibration methodology and our archival on-sky database, and we demonstrate the conclusive detection of circular polarization of certain objects.
Revised Extinctions and Radii for 1.5 Million Stars Observed by APOGEE, GALAH, and RAVE
Authors: Yu Jie , Khanna Shourya , Themessl Nathalie , Hekker Saskia , Dréau Guillaume , Gizon Laurent , Bi Shaolan 
Published: February 2023

Abstract
Asteroseismology has become widely accepted as a benchmark for accurate and precise fundamental stellar properties. It can therefore be used to validate and calibrate stellar parameters derived from other approaches. Meanwhile, one can leverage large-volume surveys in photometry, spectroscopy, and astrometry to infer stellar parameters over a wide range of evolutionary stages, independently of asteroseismology. Our pipeline, SEDEX (https://github.com/Jieyu126/SEDEX), compares the spectral energy distribution predicted by the MARCS and BOSZ model spectra with 32 photometric bandpasses, combining data from nine major, large-volume photometric surveys. We restrict the analysis to targets with available spectroscopy from the APOGEE, GALAH, and RAVE surveys to lift the temperature−extinction degeneracy. The cross-survey atmospheric parameter and uncertainty estimates are homogenized with artificial neural networks. Validation of our results with CHARA interferometry, Hubble Space Telescope CALSPEC spectrophotometry, and asteroseismology shows that we achieve high precision and accuracy. We present a catalog of improved interstellar extinction (

σ

A

V

≃

0.14 mag) and stellar radii (σ

R
/R ≃ 7.4%) for ∼1.5 million stars in the low-to-high-extinction (A

V
≲ 6 mag) fields observed by the spectroscopic surveys. We derive global extinctions for 184 Gaia DR2 open clusters and confirm the differential extinction in NGC 6791 and NGC 6819, which have been subject to extensive asteroseismic analysis. Furthermore, we report 36,854 double-lined spectroscopic main-sequence binary candidates. This catalog will be valuable for providing constraints on detailed modeling of stars and for constructing 3D dust maps of the Kepler field, the TESS Continuous Viewing Zones, and the PLATO long-duration observation fields.
SDSS J134441.83+204408.3: A Highly Asynchronous Short-period Magnetic Cataclysmic Variable with a 56 MG Field Strength
Authors: Littlefield Colin , Mason Paul A. , Garnavich Peter , Szkody Paula , Thorstensen John , Scaringi Simone , Iłkiewicz Krystian , Kennedy Mark R. , Wells Natalie 
Published: February 2023

Abstract
When the accreting white dwarf in a magnetic cataclysmic variable star (mCV) has a field strength in excess of 10 MG, it is expected to synchronize its rotational frequency to the binary orbit frequency, particularly at small binary separations, due to the steep radial dependence of the magnetic field. We report the discovery of an mCV (SDSS J134441.83+204408.3, hereafter J1344) that defies this expectation by displaying asynchronous rotation (P
spin/P
orb = 0.893) in spite of a high surface field strength (B = 56 MG) and a short orbital period (114 minutes). Previously misidentified as a synchronously rotating mCV, J1344 was observed by Transiting Exoplanet Survey Satellite during sector 50, and the resulting power spectrum shows distinct spin and orbital frequencies, along with various sidebands and harmonics. Although there are several other asynchronous mCVs at short orbital periods, the presence of cyclotron humps in J1344's Sloan Digital Sky Survey spectrum makes it possible to directly measure the field strength in the cyclotron-emitting region, and while a previously study estimated 65 MG based on its identification of two cyclotron humps, we revise this to 56 ± 2 MG based on the detection of a third hump and on our modeling of the cyclotron spectrum. Short-period mCVs with field strengths above 10 MG are normally expected to be synchronous, so the highly asynchronous rotation in J1344 presents an interesting challenge for theoretical studies of spin-period evolution.
New Constraints for Supernova Models from Presolar Silicon Carbide X Grains with Very High 26Al/27Al Ratios
Authors: Hoppe Peter , Leitner Jan , Pignatari Marco , Amari Sachiko 
Published: February 2023

Abstract
We report C, N, Mg-Al, Si, and S isotope data of six 1–3 μm-sized SiC grains of Type X from the Murchison CM2 chondrite, believed to have formed in the ejecta of core-collapse supernova (CCSN) explosions. Their C, N, and Si isotopic compositions are fully compatible with previously studied X grains. Magnesium is essentially monoisotopic 26Mg which gives clear evidence for the decay of radioactive 26Al. Inferred initial 26Al/27Al ratios are between 0.6 and 0.78 which is at the upper end of previously observed ratios of X grains. Contamination with terrestrial or solar system Al apparently is low or absent, which makes the X grains from this study particularly interesting and useful for a quantitative comparison of Al isotope data with predictions from supernova models. The consistently high 26Al/27Al ratios observed here may suggest that the lower 26Al/27Al ratios of many X grains from the literature are the result of significant Al contamination and in part also of an improper quantification of 26Al. The real dispersion of 26Al/27Al ratios in X grains needs to be explored by future studies. The high observed 26Al/27Al ratios in this work provide a crucial constraint for the production of 26Al in CCSN models. We explored different CCSN models, including both “classical” and H ingestion CCSN models. It is found that the classical models cannot account for the high 26Al/27Al ratios observed here; in contrast, H ingestion models are able to reproduce the 26Al/27Al ratios along with C, N, and Si isotopic ratios reasonably well.
Understanding Differences in Patient Descriptions of Rheumatoid Arthritis Flares Using OMERACT Core Domains
Authors: Maica Gabriela L. , Iannaccone Christine , Feathers Vivi , Frits Michelle L. , Bykerk Vivian P. , Bingham Clifton O. , Weinblatt Michael , Shadick Nancy A. 
Published: February 2023

ObjectiveRecently, there has been consensus on domains that constitute flares in rheumatoid arthritis (RA); however, variations in patients’ flare descriptions continue to be observed. This study evaluates how demographic and clinical characteristics influence these differences.MethodsParticipants enrolled in a prospective RA registry completed a qualitative survey that included the open-ended question “What does a flare mean to you?” Responses were categorized into Outcome Measures in Rheumatology (OMERACT) core and research domains. Univariate analyses evaluated demographic and clinical characteristics. Regression analyses determined independent variables associated with flare description variations.ResultsAmong 645 participants, the median Disease Activity Score in 28 joints (DAS28) with C-reactive protein was 2.1 (IQR 1.6-2.9); 58% of the participants reported at least 1 flare in the past 6 months. Participants reported a median of 3 (IQR 2-5) OMERACT domains when describing flares. Fatigue was more commonly noted among females (odds ratio [OR] 6.12;P< 0.001). Older participants were less likely to report emotional distress (OR 0.97;P= 0.03), swollen joints (OR 0.99;P= 0.04), physical function decrease (OR 0.98;P= 0.02), and a general increase in RA symptoms (OR 0.98;P= 0.005). Participants with a higher DAS28 score were less likely to report symptoms of stiffness (OR 0.70;P= 0.009), and those who experienced a flare within the last 6 months were more likely to describe flares as pain (OR 2.53;P< 0.001) and fatigue (OR 2.00;P= 0.007).ConclusionVariations in patients’ flare descriptions can be driven by a patient’s disease activity, the experience of a recent flare, as well as different demographic characteristics, such as age and gender. Understanding the interplay of these characteristics can guide a physician’s approach to the management of patients’ RA flares.
Environnement et usines d’alumine : des plaintes des riverains à la contestation globale des boues rouges, les exemples de Gardanne, France et d’Aughinish, Irlande, XX e -XXI e siècles
Authors: Carbonell Mauve 
Published: February 2023

L’industrie de l’alumine, qui s’est développée à la fin du XIX e siècle, génère des nuisances environnementales diverses : fumées, poussières, bruits, contaminations liées aux résidus. Les contestations, d’abord locales, se sont ensuite étendues jusqu’à devenir convergence des luttes environnementales à la fin du XX e siècle portant principalement sur les résidus ou « boues rouges » et remettant en cause la cohabitation entre cette industrie, son milieu et d’autres pans de l’activité humaine (pêche, agriculture, tourisme). Dans l’optique de mieux comprendre les ressorts de ces contestations, et des résistances qu’elles-mêmes suscitent aussi, cet article retrace l’histoire des conflits et débats liés à l’environnement autour de l’usine de Gardanne et de l’usine d’Aughinish en Irlande. Le prisme des contestations permet de poser des jalons renouvelés de l’histoire de cette industrie « malaimée » de la filière aluminium, tout en apportant des clés de compréhension de conflits environnementaux actuels en Europe.
L’art de l’icône, « moment intrinsèque » de la théologie en monde orthodoxe ?
Authors: Vivier-Muresan Anne-Sophie 
Published: February 2023

En résonance avec la conférence proposée par Denis Hétier, cet exposé s’efforce de repérer dans quelle mesure l’art de l’icône en monde orthodoxe rejoint la compréhension rahnérienne de l’art comme « moment intrinsèque de la théologie ». Après avoir mis en avant ce qui fonde « l’autorité » de l’icône sur un plan théologique, nous soulignons ce en quoi la proposition rahnérienne déborde la compréhension orthodoxe de l’icône. Cette différence tient notamment à la place de la norme et des canons, si importants pour cette dernière. Mais peut-être faut-il moins opposer les deux conceptions que reconnaître en l’art de l’icône une forme artistique particulière, de nature plus proprement ecclésiale.
HERV1-env Induces Unfolded Protein Response Activation in Autoimmune Liver Disease: A Potential Mechanism for Regulatory T Cell Dysfunction
Authors: Subramanian Kumar , Paul Saikat , Libby Andrew , Patterson Jordan , Arterbery Adam , Knight James , Castaldi Christopher , Wang Guilin , Avitzur Yaron , Martinez Mercedes , Lobritto Steve , Deng Yanhong , Geliang Gan , Kroemer Alexander , Fishbein Thomas , Mason Andrew , Dominguez-Villar Margarita , Mariappan Malaiyalam , Ekong Udeme D 
Published: February 2023

Abstract
Regulatory T cells (Tregs) are not terminally differentiated but can acquire effector properties. Here we report an increased expression of human endogenous retrovirus 1 (HERV1-env) proteins in Tregs of patients with de novo autoimmune hepatitis and autoimmune hepatitis, which induces endoplasmic reticulum (ER) stress. HERV1-env-triggered ER stress activates all three branches (IRE1, ATF6, and PERK) of the unfolded protein response (UPR). Our coimmunoprecipitation studies show an interaction between HERV1-env proteins and the ATF6 branch of the UPR. The activated form of ATF6α activates the expression of RORC and STAT3 by binding to promoter sequences and induces IL-17A production. Silencing of HERV1-env results in recovery of Treg suppressive function. These findings identify ER stress and UPR activation as key factors driving Treg plasticity (species: human).
The Prognostic Implication of Coronary Artery Calcification in Patients with Atrial Fibrillation
Authors: Hsiang Chih-Weim , Lin Wen-Yu , Lo Cheng-Hsiang , Liang Chun-Yu , Lin Tsung-Kun , Hsieh Chun-Hsien , Chen Jia-En , Liu Wen-Cheng 
Published: February 2023

Background:
Coronary artery calcification (CAC) is a well-validated parameter reflecting the extent of subclinical atherosclerosis. Atherosclerosis manifestations are commonly presented in atrial fibrillation (AF) patients. Nevertheless, the long-term cardiovascular risks in AF patients with concomitant CAC are limited.

Aim:
The aim of this study is to identify the prognostic impact of CAC in patients with AF.

Methods:
A total of 646 eligible patients who underwent noncontrast coronary computed tomography (nCCT) from January 2012 to December 2018 were evaluated and retrospectively followed up for 2 years. The patients were assessed for cardiovascular outcomes, including nonfatal myocardial infarction, nonfatal stroke, late coronary revascularization, major adverse cardiovascular event (MACE), and total coronary and total composite events, by a multivariable Cox regression hazards model with adjusting for significant confounding factors.

Results:
AF patients with severe CAC (CAC score [CACS] >400 Agatston units) had significantly higher risks of composite cardiovascular outcomes, including MACEs (adjusted hazard ratio [HR]: 57.18, 95% confidence interval [CI]: 2.28–1434.41, P = 0.014), total coronary events (adjusted HR: 16.48, 95% CI: 1.21–224.15, P = 0.035), and total composite events (adjusted HR: 26.35, 95% CI: 2.45–283.69, P = 0.007), than sinus rhythm patients without CAC. Moreover, severe CAC in AF patients was a significant predictor of total composite events (adjusted HR: 59.1, 95% CI: 2.16–1616.33, P = 0.016).

Conclusion:
Severe CAC in AF patients may cause significantly higher cardiovascular risks, highlighting the role of nCCT in determining CACs for early risk evaluation to facilitate aggressive risk modification and thereby to prevent subsequent cardiovascular events. Further, large, prospective studies are needed to validate the impact of CAC in patients with AF.
Association of SARS-CoV-2 Viral Load with Biochemical Profile of COVID-19 Patients: A Nigerian Experience
Authors: Okwor CJ , Meka IA , Nto-Ezimah UA , Nto NJ , Nduka NS , Akinwande KS , Edem VF 
Published: February 2023

Background:
Kidney involvement in coronavirus disease 2019 (COVID-19) pathology has been supported by high frequency of angiotensin-converting enzyme 2 (ACE2) expression on renal cells and reports of acute kidney injury. However, the association between host viral load and kidney function is not clear.

Aim:
In this study, plasma levels of renal markers (urea nitrogen, creatinine, and estimated glomerular filtration rate (eGFR)) and electrolytes (sodium, potassium, chlorine, and bicarbonate) were assessed in relation to SARS-CoV-2 viral load of COVID-19 patients.

Patients and Methods:
This cross-sectional study involved 144 consenting COVID-19 patients admitted to the Ogun state COVID-19 isolation center between May and December 2020. All participants presented with mild respiratory symptoms and did not require ICU admission or ventilation support. Data included reverse transcriptase polymerase chain reaction (RT-PCR) cycle threshold (C
T
) value, blood urea nitrogen (BUN), creatinine, sodium, potassium, chlorine, bicarbonate measurements, and glomerular filtration rate. Reference intervals were used as comparators, and multiple linear regression model was fitted. Statistical significance was set at P < 0.05.

Results:
BUN level and creatinine were elevated in 4 (2.8%) and 42 (29.2%) patients, respectively, with lowered eGFR observed in 37 (25.7%) patients. Hyponatremia and hypokalemia were observed in 35 (24.3%) and 21 (14.6%) patients, respectively, while hypochloremia was observed in 21 (14.6%) patients. Lowered bicarbonate was observed in 29 (20.1%) patients. Linear regression showed statistically significant association (R2 = 0.340, P = 0.032) between RT-PCR C
T
value and eGFR (b = 0.006, P = 0.017) as well as HCO3 (b = -0.262, P = 0.036).

Conclusion:
COVID-19 patients with mild respiratory symptoms exhibited renal abnormalities, electrolytes, and acid-base imbalances which were partly associated with SARS-CoV-2 viral load.