bluuebunny/crossref_metadata_2025_split huggingface dataset:
Interstellar Detection of O-protonated Carbonyl Sulfide, HOCS+
Authors: Sanz-Novo Miguel , Rivilla Víctor M. , Jiménez-Serra Izaskun , Martín-Pintado Jesús , Colzi Laura , Zeng Shaoshan , Megías Andrés , López-Gallifa Álvaro , Martínez-Henares Antonio , Massalkhi Sarah , Tercero Belén , de Vicente Pablo , San Andrés David , Martín Sergio , Requena-Torres Miguel A. 
Published: April 2024

Abstract
We present the first detection in space of O-protonated carbonyl sulfide (HOCS+), in the midst of an ultradeep molecular line survey toward the G+0.693-0.027 molecular cloud. From the observation of all K

a
= 0 transitions ranging from J

lo
= 2 to J

lo
= 13 of HOCS+ covered by our survey, we derive a column density of N = (9 ± 2) × 1012 cm−2, translating into a fractional abundance relative to H2 of ∼7 × 10−11. Conversely, the S-protonated HSCO+ isomer remains undetected, and we derive an upper limit to its abundance with respect to H2 of ≤3 × 10−11, a factor of ≥2.3 less abundant than HOCS+. We obtain an HOCS+/OCS ratio of ∼2.5 × 10−3, in good agreement with the prediction of astrochemical models. These models show that one of the main chemical routes to the interstellar formation of HOCS+ is likely the protonation of OCS, which appears to be more efficient at the oxygen end. Also, we find that high values of cosmic-ray ionization rates (10−15–10−14 s−1) are needed to reproduce the observed abundance of HOCS+. In addition, we compare the O/S ratio across different interstellar environments. G+0.693-0.027 appears as the source with the lowest O/S ratio. We find an HOCO+/HOCS+ ratio of ∼31, in accordance with other O/S molecular pairs detected toward this region and also close to the O/S solar value (∼37). This fact indicates that S is not significantly depleted within this cloud due to the action of large-scale shocks, unlike in other sources where S-bearing species remain trapped on icy dust grains.
Detecting Gravitational Wave Bursts from Stellar-mass Binaries in the mHz Band
Authors: Xuan Zeyuan , Naoz Smadar , Kocsis Bence , Michaely Erez 
Published: April 2024

Abstract
The dynamical formation channels of gravitational wave (GW) sources typically involve a stage when the compact object binary source interacts with the environment, which may excite its eccentricity, yielding efficient GW emission. For the wide eccentric compact object binaries, the GW emission happens mostly near the pericenter passage, creating a unique, burst-like signature in the waveform. This work examines the possibility of stellar-mass bursting sources in the mHz band for future LISA detections. Because of their long lifetime (∼107 yr) and promising detectability, the number of mHz bursting sources can be large in the local Universe. For example, based on our estimates, there will be ∼3–45 bursting binary black holes in the Milky Way, with ∼102–104 bursts detected during the LISA mission. Moreover, we find that the number of bursting sources strongly depends on their formation history. If certain regions undergo active formation of compact object binaries in the recent few million years, there will be a significantly higher bursting source fraction. Thus, the detection of mHz GW bursts not only serves as a clue for distinguishing different formation channels, but also helps us understand the star formation history in different regions of the Milky Way.
The Cosmic Ultraviolet Baryon Survey (CUBS). VIII. Group Environment of the Most Luminous Quasars at z ≈ 1
Authors: Li Jennifer I-Hsiu , Johnson Sean D. , Boettcher Erin , Cantalupo Sebastiano , Chen Hsiao-Wen , Chen Mandy C. , DePalma David R. , Liu Zhuoqi (Will) , Mishra Nishant , Petitjean Patrick , Qu Zhijie , Rudie Gwen C. , Schaye Joop , Zahedy Fakhri S. 
Published: April 2024

Abstract
We investigate the group-scale environment of 15 luminous quasars (luminosity L
3000 > 1046 erg s−1) from the Cosmic Ultraviolet Baryon Survey (CUBS) at redshift z ≈ 1. Using the Multi Unit Spectroscopic Explorer integral field spectrograph on the Very Large Telescope, we conduct a deep galaxy redshift survey in the CUBS quasar fields to identify group members and measure the physical properties of individual galaxies and galaxy groups. We find that the CUBS quasars reside in diverse environments. The majority (11 out of 15) of the CUBS quasars reside in overdense environments with typical halo masses exceeding 1013
M
⊙, while the remaining quasars reside in moderate-size galaxy groups. No correlation is observed between overdensity and redshift, black hole (BH) mass, or luminosity. Radio-loud quasars (5 out of 15 CUBS quasars) are more likely to be in overdense environments than their radio-quiet counterparts in the sample, consistent with the mean trends from previous statistical observations and clustering analyses. Nonetheless, we also observe radio-loud quasars in moderate groups and radio-quiet quasars in overdense environments, indicating a large scatter in the connection between radio properties and environment. We find that the most UV luminous quasars might be outliers in the stellar mass-to-halo mass relations or may represent departures from the standard single-epoch BH relations.
Investigating Ionization in the Intergalactic Medium
Authors: Koplitz Brad , Ramesh Anjali , Borthakur Sanchayeeta 
Published: April 2024

Abstract
The intergalactic medium (IGM) contains >50% of the baryonic mass of the Universe, yet the mechanisms responsible for keeping the IGM ionized have not been fully explained. Hence, we investigate ion abundances from the largest blind QSO absorption catalog for clouds that show C iv, N v, and O vi simultaneously. The wavelength range of present UV spectrographs, however, makes it possible to probe C iv and O vi only over a small range of redshift (z ≈ 0.12–0.15). As a result, we only have five IGM absorbing clouds, yet these provide a powerful and representative tool to probe the IGM ionization state. We found one cloud to be in collisional ionization equilibrium while three of the five showed signs of being produced by nonequilibrium processes, specifically conductive interfaces and turbulent mixing layers. None of the models we explore here were able to reproduce the ionization state of the remaining system. Energetic processes, such as galactic feedback from star formation and active galactic nucleus winds, would be excellent candidates that can cause such widespread ionization.
Radio Polarization of Millisecond Pulsars with Multipolar Magnetic Fields
Authors: Sur Ankan , Yuan Yajie , Philippov Alexander 
Published: April 2024

Abstract
NICER has observed a few millisecond pulsars where the geometry of the X-ray-emitting hotspots on the neutron star have been analyzed in order to constrain the mass and radius from X-ray light-curve modeling. One example, PSR J0030 + 0451, has been shown to possibly have significant multipolar magnetic fields at the stellar surface. Using force-free simulations of the magnetosphere structure, it has been shown that the radio, X-ray, and γ-ray light curves can be modeled simultaneously with an appropriate field configuration. An even more stringent test is to compare predictions of the force-free magnetosphere model with observations of radio polarization. This paper attempts to reproduce the radio polarization of PSR J0030 + 0451 using a force-free magnetospheric solution. As a result of our modeling, we can reproduce certain features of the polarization well.
Observation of Kinetic Alfvén Waves inside an Interplanetary Coronal Mass Ejection Magnetic Cloud at 1 au
Authors: Kumbhar Kishor , Raghav Anil , Dhamane Omkar , Ghag Kalpesh , Pawaskar Vinit , Shaikh Zubair , Bhaskar Ankush , D’Amicis Raffaella , Telloni Daniele 
Published: April 2024

Abstract
Recent advancements have significantly enhanced our grasp of interplanetary coronal mass ejections (ICMEs) in the heliosphere. These observations have uncovered complex kinematics and structural deformations in ICMEs, hinting at the possible generation of magnetohydrodynamic (MHD) and kinetic-scale waves. While MHD-scale waves in magnetic clouds have been explored, understanding the dynamics of kinetic-scale mode waves remains challenging. This article demonstrates the first in situ observation of kinetic Alfvén waves (KAWs) within an ICME’s magnetic cloud, notably near the heliospheric current sheet–ICME interaction region, close to the reconnection exhaust. Analysis indicates a distinctive negative bump in the estimated normalized magnetic helicity (σ

m
= −0.38) around the gyrofrequency spread, indicating a right-handed polarization of the wave. Furthermore, examination across flow angle (θ
VB) within the frequency domain reveals a specific zone (90°–135°) showcasing negative helicity fluctuations, confirming the presence of KAWs. Moreover, we noted a significant rise in temperature anisotropy in the vicinity, indicating the role of KAWs in plasma heating. Identifying KAW challenges established notions about ordered magnetic clouds and raises questions about energy transfer processes within these structures. This finding opens the door to a deeper understanding of energy transfer mechanisms within traditionally nondissipative regions and invites further exploration of low-beta plasma heating and the interactions between waves and particles in magnetic clouds.
A JWST Survey of the Supernova Remnant Cassiopeia A
Authors: Milisavljevic Dan , Temim Tea , De Looze Ilse , Dickinson Danielle , Laming J. Martin , Fesen Robert , Raymond John C. , Arendt Richard G. , Vink Jacco , Posselt Bettina , Pavlov George G. , Fox Ori D. , Pinarski Ethan , Subrayan Bhagya , Schmidt Judy , Blair William P. , Rest Armin , Patnaude Daniel , Koo Bon-Chul , Rho Jeonghee , Orlando Salvatore , Janka Hans-Thomas , Andrews Moira , Barlow Michael J. , Burrows Adam , Chevalier Roger , Clayton Geoffrey , Fransson Claes , Fryer Christopher , Gomez Haley L. , Kirchschlager Florian , Lee Jae-Joon , Matsuura Mikako , Niculescu-Duvaz Maria , Pierel Justin D. R. , Plucinsky Paul P. , Priestley Felix D. , Ravi Aravind P. , Sartorio Nina S. , Schmidt Franziska , Shahbandeh Melissa , Slane Patrick , Smith Nathan , Sravan Niharika , Weil Kathryn , Wesson Roger , Wheeler J. Craig 
Published: April 2024

Abstract
We present initial results from a James Webb Space Telescope (JWST) survey of the youngest Galactic core-collapse supernova remnant, Cassiopeia A (Cas A), made up of NIRCam and MIRI imaging mosaics that map emission from the main shell, interior, and surrounding circumstellar/interstellar material (CSM/ISM). We also present four exploratory positions of MIRI Medium Resolution Spectrograph integral field unit spectroscopy that sample ejecta, CSM, and associated dust from representative shocked and unshocked regions. Surprising discoveries include (1) a weblike network of unshocked ejecta filaments resolved to ∼0.01 pc scales exhibiting an overall morphology consistent with turbulent mixing of cool, low-entropy matter from the progenitor’s oxygen layer with hot, high-entropy matter heated by neutrino interactions and radioactivity; (2) a thick sheet of dust-dominated emission from shocked CSM seen in projection toward the remnant’s interior pockmarked with small (∼1″) round holes formed by ≲0.″1 knots of high-velocity ejecta that have pierced through the CSM and driven expanding tangential shocks; and (3) dozens of light echoes with angular sizes between ∼0.″1 and 1′ reflecting previously unseen fine-scale structure in the ISM. NIRCam observations place new upper limits on infrared emission (≲20 nJy at 3 μm) from the neutron star in Cas A’s center and tightly constrain scenarios involving a possible fallback disk. These JWST survey data and initial findings help address unresolved questions about massive star explosions that have broad implications for the formation and evolution of stellar populations, the metal and dust enrichment of galaxies, and the origin of compact remnant objects.
Amitié et amour : passages
Authors: Perron Roger 
Published: April 2024

Roger Perron explore, du point de vue du psychanalyste, le fonctionnement de l’appareil psychique en proie à l’amour, à la haine et à l’amitié. Pour définir les points communs et les différences entre amour et amitié, il s’interroge, à l’appui de textes littéraires, sur les processus en jeu lorsqu’une relation amicale se transforme en relation amoureuse, et réciproquement. Roger Perron convie d’abord le lecteur à une « promenade linguistique » dans le vocabulaire de l’amour et de l’amitié. Puis il explore le jeu des identifications dans la fameuse amitié de Montaigne pour La Boétie. Enfin, il interroge l’amour de transfert, ainsi que ce qu’il propose de nommer « transfert amical » dans l’espace analytique.
Les apports mutuels du Cours d’Action et de la Cognition Distribuée à la compréhension des interactions inter‑espèces : le cas d’une relation singulière écuyer‑sauteur
Authors: Leblanc Marine , Huet Benoît , Saury Jacques 
Published: April 2024

Cet article vise à tester la fécondité d’un rapprochement entre deux programmes de recherche, le Cours d’Action (PRCA) et la Cognition Distribuée (PRCD) pour étudier les interactions homme-animal. Ce développement du PRCA en direction d’un « PRCA augmenté » vise à susciter de nouvelles questions de recherche, liées à l’intégration des activités animales et des interactions hommes-animaux dans le domaine de l’analyse des pratiques. Cet article apporte une contribution empirique au développement de ce programme, en analysant la communication homme-cheval, notamment les interactions entre les écuyers du Cadre noir et les chevaux sauteurs. Pour étudier les interactions inter-espèces, nous utilisons plusieurs notions théoriques provenant de ces deux programmes de recherche : la pratique culturelle, l’appropriation-action mutuelle, ainsi qu’une autre notion déjà explorée dans des travaux antérieurs : l’empathie sensorimotrice. Nous soutenons que la pratique culturelle des sauts d’école, commune à l’écuyer et au cheval, constitue à la fois une condition et une résultante de l’empathie sensorimotrice qui se développe au travers d’un processus d’appropriation-action mutuelle. Cette étude confirme la pertinence d’un PRCA « augmenté » pour rendre compte des activités animales et des interactions inter-espèces, et contribue à une meilleure compréhension de ces dernières. Elle ouvre des perspectives pour de nouvelles études empiriques à mener qui mettent en évidence le développement de l’empathie sensorimotrice mutuelle au sein d’autres pratiques culturelles communes entre homme et animaux.
Vers un langage de conception d’UX − Proposition d’un lexique pour représenter l’expérience utilisateur conçue dans des activités de conception
Authors: Dabouis Benoît , Boccara Vincent , Yannou Bernard 
Published: April 2024

L’importance de prendre en compte l’expérience utilisateur (UX) durant la conception est de plus en plus reconnue. Dans ce contexte, on s’intéresse dans cet article aux activités de conception de l’UX par des équipes de concepteurs et à la manière de les améliorer. Pour ce faire, une première étape est de fournir aux concepteurs les moyens pour analyser leurs activités actuelles de conception d’UX à travers des représentations graphiques qui permettront d’en établir un diagnostic, avec leurs points forts et points d’amélioration en termes d’UX. Cependant, bien qu’on trouve dans la littérature de nombreux modèles d’UX ainsi que des modèles de représentation graphique de processus de conception (chroniques de projets), on ne trouve pas de modèle qui représente l’UX conçue dans un processus de conception. Pour pallier ce problème, nous proposons deux modèles : un métamodèle d’UX comme lexique pour décrire l’UX, associé à un modèle de « chronique d’UX » représentant l’UX conçue dans les activités de conception. Ce lexique constitue la première pierre d’un langage de conception d’UX. Nous utilisons ce modèle de « chroniques d’UX » pour diagnostiquer cinq projets de design en transport. Ces chroniques ont révélé trois problèmes : une prise en compte de l’UX largement variable selon les projets dans les activités de conception des acteurs, un manque de spécification et d’évaluation de l’UX, ainsi qu’un manque de certains éléments clés de l’UX comme les caractéristiques du sujet, ses connaissances et préférences. Bien que nécessitant encore un travail de validation et de déploiement, l’approche proposée dans cet article permet le diagnostic d’activités de conception de l’UX et la formulation de recommandations personnalisées, ce qui, à notre connaissance, n’existe pas dans la littérature.
Comparison of dosimetric parameters and three-dimensional dosimetric verification of three intensity-modulated radiotherapy plans for thymoma based on the dose-volume histogram and ArcCHECK-3DVH system
Authors: Zhou Peng , Luo Jia , Xiao He , Geng Mingying , He Xuan 
Published: April 2024

Objective:
To compare the dosimetric parameters of step-shoot intensity-modulated radiotherapy (sIMRT), dynamic intensity-modulated radiotherapy (dIMRT), and volume-modulated arc therapy (VMAT) in thymoma and to study the feasibility of the ArcCHECK-3DVH system in three intensity-modulated radiotherapy plans to choose a more appropriate intensity-modulated radiotherapy for thymoma.

Materials and Methods:
Seventeen patients with thymoma were enrolled in this study. Treatment plans of sIMRT, dIMRT, and VMAT for each patient were based on the Monaco treatment planning system (TPS). Dosimetric verification was performed via the ArcCHECK-3DVH system. We compared and analyzed the 3D γ pass rates of the TPS dose calculation and ArcCHECK-3DVH system dose reconstruction with the three gamma criteria (3 mm/3%, 2 mm/2%, and 1 mm/1%) with a threshold of 10%. Dose-volume histogram analysis was used to compare the dose parameters for target volumes, and organs at risk (OARs), such as D98%, D50%, D2%, Dmax, V20, and V5. Monitor units (MUs) and delivery time were also compared.

Results:
There were significant differences in the three intensity-modulated radiotherapy plans. For target volume, VMAT showed the highest planning target volume (PTV) D98% and the lowest PTV D50% compared with sIMRT or dIMRT. The PTV D2% of VMAT was lower than that of sIMRT and higher than that of dIMRT, and VAMT demonstrated the highest conformity index and MU, lowest homogeneity index, and shortest treatment delivery time. For the OARs, VMAT is not inferior to sIMRT and dIMRT in OARs protection. For the dosimetric verification, the entire area, PTV, lungs, heart, and spinal cord of VMAT showed the highest γ pass rates than the other two techniques under the gamma 3 mm/3% criteria, which was even more pronounced when the stricter gamma criteria of 2 mm/2% and 1 mm/1% were applied.

Conclusion:
VMAT can be applied to radiotherapy of thymoma, and the accuracy of treatment plan execution can be guaranteed through the ArcCHECK-3DVH system.
An observational study to assess the feasibility of remote monitoring of patients in the early postoperative period after elective surgery
Authors: Faiz Omar , Nachiappan Subramanian , Anele Chukwuemeka , Roberts Emma-Jane , Barker Chris 
Published: April 2024

Background and Objectives:
The utility of postdischarge remote monitoring with patient self-measurement of physiological parameters has not been utilized in the elective colorectal surgical setting till date. Before full application of this utility, patient-acquired measurements’ accuracy, and ability to detect deviation from normal physiological must be assessed. This study aims to ascertain the congruency of patient-measured and nurse-measured readings in the postoperative in-hospital setting, before future application in the home setting.

Methods:
This is a prospective single-institution study comparing patient and nurse measured readings of blood pressure, heart rate, oxygen saturation, and temperature, in ambulatory patients in the postoperative setting. Patients were provided with and trained on the usage of a handheld computing device with bluetooth-enabled measuring adjuncts preoperatively. Patients were instructed to acquire two sets of readings per day for 2 days. These were compared with nurse-acquired measurements and extrapolated to the modified “National Early Warning Score” system. Inter-rater concordance was analyzed using the Bland-Altman method for raw physiological measurements and for modified-National Early Warning Score (NEWS) risk and response categories.

Results:
A total of 40 elective colorectal patients were prospectively approached. Twenty-seven completed the study with 25 patients (15 males, age range 18-79, undergoing a variety of colorectal procedures) accruing a total of 98 datasets of physiological parameter readings. There were no significant differences/bias between blood pressure (P = 0.572), heart rate (0.122), and oxygen saturation (P = 0.308) readings. Patient and linked nurse measurements for all patients elicited the same modified NEWS clinical risk and required response in all instances.

Conclusion:
Patient self-measurement of physiological parameters and subsequent derived modified NEWS categories using a remote monitoring system are comparable to nurse-acquired measurements. Remote monitoring is technically feasible, and the next steps would be to trial this technology in the home setting.
Mental health issues in antenatal women with prior adverse pregnancy outcomes: Unmasking the mental anguish of rainbow pregnancy
Authors: Kulshreshtha Shatakshi , Siwatch Sujata , Aggarwal Neelam , Rohilla Minakshi , Grover Sandeep 
Published: April 2024

Background & objectives:
Mental health issues in pregnancy have adverse implications on the quality of life, however still they go unevaluated and underreported. Women with previous history of abortions or stillbirth may have a higher risk of experiencing mental health problems. The present investigation was aimed to study the prevalence of depression, anxiety, stress and domestic violence in antenatal women with prior pregnancy losses and the need for interventions to treat the same.

Methods:
One hundred pregnant women with a history of prior pregnancy losses (group 1) and 100 women without obstetrical losses (group 2) were enrolled in this cross-sectional study carried out in a tertiary care hospital in India. Women were screened for depression, anxiety, stress and domestic violence using various questionnaires: EPDS (Edinburgh postnatal depression scale), PRAQ-2 (pregnancy-related anxiety questionnaire-revised 2), GAD 7 (generalized anxiety disorder-7) and PSS (perceived stress scale).

Results:
The prevalence of depression (EPDS scale) and pregnancy specific anxiety (PRAQ-2 scale) was significantly higher in group 1 than in group 2 (27 vs. 10%, P=0.008; and 15 vs. 6%, P=0.03). The prevalence of general anxiety (GAD 7 scale) and stress (PSS), however, was high and comparable in both the groups (33 vs. 29%, P=0.44; and 33 vs. 27%; P=0.35 respectively). Recurrent abortions was found to be an independent risk factor for depression [adjusted odds ratio=26.45; OR=28]. In group 1, 31 per cent required counselling in the psychiatry department and nine per cent required medication.

Interpretation & conclusion:
Mental health issues, especially depression, are prevalent in antenatal women with previous losses. Unrecognised and untreated, there is a need for counselling and developing screening protocols at India’s societal and institutional levels.