bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surgically Treated Hind-Limb Fibromyxochondroma in a Cranwell’s Horned Frog (Ceratophrys cranwelli)
Authors: Serpieri Matteo , Bonaffini Giuseppe , Ottino Chiara , Maniscalco Lorella , Quaranta Giuseppe , Mauthe von Degerfeld Mitzy 
Published: April 2024

Ceratophrys cranwelli, commonly known as the Cranwell’s horned frog or Pacman frog, is an amphibian species native to South America. This species has gained interest both as a pet among hobbyists and as a subject of scientific inquiry in veterinary medicine. A two-year-old pet male albino Ceratophrys cranwelli was presented exhibiting lethargy, weight loss, and anorexia, persisting for two months. Clinical examination revealed a fracture localized to the proximal third of the left femur accompanied by an osteolytic process. The patient was discharged with a treatment regimen for suspected secondary nutritional hyperparathyroidism and an ulcerative skin lesion. Nevertheless, due to the progressive deterioration of the left thigh, amputation of the affected limb was proposed and performed at the coxofemoral joint. Histopathological analysis of the excised mass revealed an atypical mesenchymal mass consistent with a fibromyxochondroma. The surgical procedure was conducted under anesthesia induced by a combination of alfaxalone, ketamine, medetomidine, and butorphanol, with postoperative treatment consisting of enrofloxacin, meloxicam, and butorphanol. The patient showed good post-surgical recovery, exhibiting normal physiological and behavioral activities. This report highlights the management and the diagnostic challenges of a progressive limb lesion in a Ceratophrys cranwelli, offering insights into potential therapeutic approaches for similar cases in amphibians.
Caracterización polínica de especies de Salvia subgénero Calosphace
Authors: Raygadas-Torres Susana , Domínguez Vázquez Gabriela , Lara Cabrera Sabina 
Published: April 2024

Los caracteres polínicos constituyen una fuente de información importante en campos afines a la biología, en varios grupos de plantas incluso constituyen caracteres de importancia taxonómica. En Salvia, el polen está formado por mónadas, radiales, isopolares, de ámbito circular, oblato a oblato-esferoidales, hexacolpados, con exina microrreticulada, de tamaño pequeño a mediano. En este estudio se evalúa la morfología polínica con microscopio óptico para 28 especies clasificadas en 19 secciones sensu Epling del género Salvia subgénero Calosphace; para determinar si los caracteres polínicos son distintivos para alguna de las especies y si hay similitud entre especies clasificadas en la misma sección del subgénero. Se reporta por primera vez la morfología del grano para 19 especies. De las 28 especies únicamente se observan diferencias en el tamaño del grano, encontrándose los granos más pequeños en S. breviflora, S. connivens, S. curviflora y S. polystachia y, los más grandes en S. amarissima, S. cinnabarina, S. clarckowanii y S. lavanduloides. El dendrograma Neighbor Joining no agrupa a las especies de ninguna de las secciones representadas por más de una especie. Aunque la morfología polínica no constituye un carácter de valor taxonómico para estas especies, ni las agrupa en secciones; es necesario continuar la exploración a más especies para lograr un muestreo representativo de la diversidad del subgénero.
High-power, stable single-mode CW operation of 1550 nm wavelength InP-based photonic-crystal surface-emitting lasers
Authors: Aoki Takeshi , Itoh Yuhki , Fujii Kosuke , Yoshinaga Hiroyuki , Fujiwara Naoki , Ogasawara Makoto , Sawada Yusuke , Tanaka Rei , Yagi Hideki , Yanagisawa Masaki , Yoshida Masahiro , Inoue Takuya , De Zoysa Menaka , Ishizaki Kenji , Noda Susumu 
Published: April 2024

Abstract
1550 nm wavelength photonic-crystal surface-emitting lasers (PCSELs) are attractive for optical communication and eye-safe sensing applications. In this study, we present InP-based PCSELs featuring a double-lattice photonic-crystal structure designed for high-power single-mode operation at a wavelength of 1550 nm. These PCSELs demonstrate output powers exceeding 300 mW under continuous-wave conditions at 25 °C. Additionally, highly stable single-mode oscillation with a side-mode suppression ratio of over 60 dB is verified at temperatures from 15 °C to 60 °C. Measurement and simulation of photonic band structures reveal the impacts of the threshold gain margin and optical coupling coefficient on the single-mode stability.
Sub-two-cycle intense pulse generation based on two-stage hollow-core fiber compression using an ytterbium amplifier
Authors: Ishii Nobuhisa , Itakura Ryuji 
Published: April 2024

Abstract
We demonstrate the generation of sub-two-cycle intense laser pulses based on two-stage hollow-core fiber (HCF) compression in a compact setup (footprint of 0.65 m × 2.85 m) using a commercial Yb:KGW regenerative amplifier. Spectrally broadened laser pulses with an output power of 7.2 W from the second HCF stage are compressed down to 6.6 fs (1.9 cycles at 1030 nm) using a pair of chirp mirrors and a pair of wedges with an efficiency of 86%, leading to a compressed output of 6.2 W. A pulse-to-pulse energy stability of 0.17% is measured for 10 min.
LITÍASE RENAL: UMA VISÃO ABRANGENTE DA COMPOSIÇÃO E MODALIDADES TERAPÊUTICAS.
Authors: Brito Paulo Roberto da Silva , Silva Rafaela Mendes , Brito Nayla Cristine da Silva , Silva Nataly Araújo da , Pereira Luis Paulo da Silva , Morais Samuel Antonio Andrades de , Nascimento Maria Clara Oliveira , Gonçalves Albérico Santana Santos Amorim , Dantas Talitha Karoline Eufrazio Reis , Brito Mayrla Cardielle Silva de , Araujo Paola Morgana Oliveira , Souza Isabela Guazzelli Lucena de 
Published: April 2024

A nefrolitíase, também conhecida como cálculo renal, é uma condição comum que afeta milhões de pessoas globalmente. Esses cálculos são formados pela interação complexa de fatores genéticos, ambientais e dietéticos, resultando em composições químicas variadas. Fatores dietéticos, como a ingestão de líquidos, proteínas animais, sódio e cálcio, desempenham um papel crucial na formação desses cálculos.O tratamento da nefrolitíase varia de medidas simples, como aumento da ingestão de líquidos e mudanças na dieta, até procedimentos invasivos, como cirurgias. Avanços tecnológicos têm trazido novas opções terapêuticas, como laser e robótica em procedimentos menos invasivos. Uma compreensão completa desses aspectos é fundamental para aprimorar a prevenção, diagnóstico e tratamento dessa condição desafiadora. Metodologia: A pesquisa foi realizada através do acesso online nas bases de dados científicos como: Google Scholar, National Library of Medicine(PubMed), Biblioteca Virtual em Saúde (BVS) e Scientific Electronic Library Online(SCIELO) para seleção dos artigos, através de palavras-chave presentes nos descritores em inglês. Resultados: Os cálculos renais são formações sólidas nos rins, com composições variadas e influenciadas por fatores genéticos, ambientais e dietéticos. Os cálculos de oxalato de cálcio são os mais comuns, seguidos pelos de fosfato de cálcio, ácido úrico, estruvita e cistina. A formação desses cálculos está relacionada a fatores como dieta, metabolismo do cálcio e oxalato, pH urinário e fatores genéticos. O tratamento depende do tipo e tamanho dos cálculos, podendo incluir mudanças na dieta, aumento da ingestão de líquidos e procedimentos invasivos..Considerações Finais: O estudo abordou os diferentes tipos de cálculos renais, destacando suas causas, composição e fatores de risco. O diagnóstico e tratamento específicos foram discutidos para cada tipo de cálculo, ressaltando a importância da prevenção e do manejo adequado. É fundamental considerar as características individuais de cada paciente ao determinar a abordagem terapêutica mais adequada. A pesquisa destaca a necessidade contínua de estudos para aprimorar as estratégias de prevenção e tratamento, visando melhorar a qualidade de vida dos pacientes com litíase renal.
Evaluating the Consistency of Cosmological Distances Using Supernova Siblings in the Near-infrared
Authors: Dwomoh Arianna M. , Peterson Erik R. , Scolnic Daniel , Ashall Chris , DerKacy James M. , Do Aaron , Johansson Joel , Jones David O. , Riess Adam G. , Shappee Benjamin J. 
Published: April 2024

Abstract
The study of supernova (SN) siblings, supernovae with the same host galaxy, is an important avenue for understanding and measuring the properties of Type Ia SN Ia light curves (LCs). Thus far, sibling analyses have mainly focused on optical LC data. Considering that LCs in the near-infrared (NIR) are expected to be better standard candles than those in the optical, we carry out the first analysis compiling SN siblings with only NIR data. We perform an extensive literature search of all SN siblings and find six sets of siblings with published NIR photometry. We calibrate each set of siblings ensuring they are on homogeneous photometric systems, fit the LCs with the SALT3-NIR and SNooPy models, and find median absolute differences in μ values between siblings of 0.248 and 0.186 mag, respectively. To evaluate the significance of these differences beyond measurement noise, we run simulations that mimic these LCs and provide an estimate for uncertainty on these median absolute differences of ∼0.052 mag, and we find that, statistically, our analysis rules out the nonexistence of intrinsic scatter in the NIR at the 99% level. When comparing the same sets of SN siblings, we observe a median absolute difference in μ values between siblings of 0.177 mag when using optical data alone as compared to 0.186 mag when using NIR data alone. It is unclear if these results may be due to limited statistics or poor quality NIR data, all of which will be improved with the Nancy Grace Roman Space Telescope.
Interpretable Machine Learning for Finding Intermediate-mass Black Holes
Authors: Pasquato Mario , Trevisan Piero , Askar Abbas , Lemos Pablo , Carenini Gaia , Mapelli Michela , Hezaveh Yashar 
Published: April 2024

Abstract
Definitive evidence that globular clusters (GCs) host intermediate-mass black holes (IMBHs) is elusive. Machine-learning (ML) models trained on GC simulations can in principle predict IMBH host candidates based on observable features. This approach has two limitations: first, an accurate ML model is expected to be a black box due to complexity; second, despite our efforts to simulate GCs realistically, the simulation physics or initial conditions may fail to reflect reality fully. Therefore our training data may be biased, leading to a failure in generalization to observational data. Both the first issue—explainability/interpretability—and the second—out of distribution generalization and fairness—are active areas of research in ML. Here we employ techniques from these fields to address them: we use the anchors method to explain an Extreme Gradient Boosting (XGBoost) classifier; we also independently train a natively interpretable model using Certifiably Optimal RulE ListS (CORELS). The resulting model has a clear physical meaning, but loses some performance with respect to XGBoost. We evaluate potential candidates in real data based not only on classifier predictions but also on their similarity to the training data, measured by the likelihood of a kernel density estimation model. This measures the realism of our simulated data and mitigates the risk that our models may produce biased predictions by working in extrapolation. We apply our classifiers to real GCs, obtaining a predicted classification, a measure of the confidence of the prediction, an out-of-distribution flag, a local rule explaining the prediction of XGBoost, and a global rule from CORELS.
Magnetic Field of Gas Giant Exoplanets and Its Influence on the Retention of Their Exomoons
Authors: Wei 魏 Xing 星 , Lin 林 D. N. C. 潮 
Published: April 2024

Abstract
We study the magnetic and tidal interactions of a gas-giant exoplanet with its host star and with its exomoons, and focus on their retention. We briefly revisit the scaling law for planetary dynamo in terms of its mass, radius, and luminosity. Based on the virial theorem, we construct an evolution law for planetary magnetic field and find that its initial entropy is important for the field evolution of a high-mass planet. We estimate the magnetic torques on orbit arising from the star–planet and planet–moon magnetic interactions, and find that it can compensate tidal torques and bypass frequency valleys where dynamical-tide response is ineffective. For exomoon’s retention, we consider two situations. In the presence of a circumplanetary disk (CPD), by comparison between CPD’s inner and outer radii, we find that planets with too strong magnetic fields or too small distance from its host star tend not to host exomoons. During the subsequent CPD-free evolution, we find, by comparison between a planet’s spin-down and a moon’s migration timescales, that hot Jupiters with periods of several days are unlikely to retain large exomoons, albeit they could be surrounded by rings from the debris of tidally disrupted moons. In contrast, moons, if formed around warm or cold Jupiters, can be preserved. Finally, we estimate the radio power and flux density due to the star–planet and planet–moon magnetic interactions and give the upper limit of detection distance by FAST.
Time-lapse Very Long Baseline Interferometry Imaging of the Close Active Binary HR 1099
Authors: Golay Walter W. , Mutel Robert L. , Abbuhl Evan E. 
Published: April 2024

Abstract
We report multiepoch astrometric very long baseline interferometry observations of the chromospherically active binary HR 1099 (V711 Tau, HD 22468) at six epochs over 63 days using the Very Long Baseline Array at 22.2 GHz. We determined hourly radio positions at each epoch with a positional uncertainty significantly smaller than the component separation. The aggregate radio positions at all epochs define an ellipse in the comoving reference frame with an inclination

i
=
39

.°

5

−
3

.°

5

+
3

.°

6

and longitude of ascending node Ω = 212° ± 22°. The ellipse center is offset from the Third Gaia Celestial Reference Frame position by Δα =

−

0.81

−
0.37

+
0.25

, Δδ =

0.45

−
0.25

+
0.23

mas. All radio centroids are well displaced from the binary center of mass at all epochs, ruling out emission from the interbinary region. We examined the motion of the radio centroids within each epoch by comparing hourly positions over several hours. The measured speeds were not statistically significant for five of the six epochs, with 2σ upper limits in the range 200–1000 km s−1. However, for one flaring epoch, there was a 3σ detection v
⊥ = 228 ± 85 km s−1. This speed is comparable to the mean speed of observed coronal mass ejections on the Sun.
SN 2022jox: An Extraordinarily Ordinary Type II SN with Flash Spectroscopy
Authors: Andrews Jennifer E. , Pearson Jeniveve , Hosseinzadeh Griffin , Bostroem K. Azalee , Dong 董 Yize 一泽 , Shrestha Manisha , Jencson Jacob E. , Sand David J. , Valenti S. , Hoang Emily , Janzen Daryl , Lundquist M. J. , Meza Nicolás , Wyatt Samuel , Jha Saurabh W. , Simpson Chris , Farah Joseph , Padilla Gonzalez Estefania , Howell D. Andrew , McCully Curtis , Newsome Megan , Pellegrino Craig , Terreran Giacomo 
Published: April 2024

Abstract
We present high-cadence optical and ultraviolet (UV) observations of the Type II supernova (SN), SN 2022jox which exhibits early spectroscopic high-ionization flash features of H i, He ii, C iv, and N iv that disappear within the first few days after explosion. SN 2022jox was discovered by the Distance Less Than 40 Mpc survey ∼0.75 day after explosion with follow-up spectra and UV photometry obtained within minutes of discovery. The SN reached a peak brightness of M

V
∼ −17.3 mag, and has an estimated 56Ni mass of 0.04 M
⊙, typical values for normal Type II SNe. The modeling of the early light curve and the strong flash signatures present in the optical spectra indicate interaction with circumstellar material (CSM) created from a progenitor with a mass-loss rate of

M
̇

∼

10

−
3

–

10

−
2

M

⊙

y

r

−
1

. There may also be some indication of late-time CSM interaction in the form of an emission line blueward of Hα seen in spectra around 200 days. The mass-loss rate of SN 2022jox is much higher than the values typically associated with quiescent mass loss from red supergiants, the known progenitors of Type II SNe, but is comparable to inferred values from similar core-collapse SNe with flash features, suggesting an eruptive event or a superwind in the progenitor in the months or years before explosion.
Detection of the Actinide Th in an r-process-enhanced Star with Accretion Origin
Authors: Xing Qianfan , Zhao Gang , Aoki Wako , Li Haining , Zhao Jingkun , Matsuno Tadafumi , Suda Takuma 
Published: April 2024

Abstract
The thorium and six second-peak r-process element (56 ≤ Z ≤ 72) abundances are determined for the α-poor star LAMOST J1124+4535 based on a high-resolution spectrum obtained with the High Dispersion Spectrograph on the Subaru Telescope. The age of J1124+4535 is 11.3 ± 4.4 Gyr using thorium and other r-process element abundances. J1124+4535 is confirmed to be a Galactic halo metal-poor ([Fe/H] = −1.27 ± 0.1) star with extreme r-process element overabundance ([Eu/Fe] = 1.13 ± 0.08) and α element deficiency ([Mg/Fe] = −0.31 ± 0.09) by the LAMOST-Subaru project. Along with the subsolar α-to-iron ratios (e.g., [Mg/Fe], [Si/Fe], [Ca/Fe]), the relatively low abundances of Na, Cr, Ni, and Zn in J1124+4535 show a significant departure from the general trends of the Galactic halo but are in good agreement with those of dwarf galaxies. The chemical abundances and kinematics of J1124+4535 suggest it was formed in the late stage of star formation in a dwarf galaxy that has been disrupted by the Milky Way. The star formation of its progenitor dwarf galaxy lasted more than 2 Gyr and has been affected by a rare r-process event before the occurrence of accretion event.
Flare Hunting in Hot Subdwarf and White Dwarf Stars from Cycles 1–5 of TESS Photometry
Authors: Xing Keyu , Zong Weikai , Silvotti Roberto , Fu Jian-Ning , Charpinet Stéphane , Cang Tianqi , Hermes J. J. , Ma Xiao-Yu , Wang Haotian , Wang Xuan , Wu Tao , Wang Jiaxin 
Published: April 2024

Abstract
Stellar flares are critical phenomena on stellar surfaces, which are closely tied to stellar magnetism. While extensively studied in main-sequence (MS) stars, their occurrence in evolved compact stars, specifically hot subdwarfs and white dwarfs (WDs), remains scarcely explored. Based on Cycles 1–5 of TESS photometry, we conducted a pioneering survey of flare events in ∼12,000 compact stars, corresponding to ∼38,000 light curves with a 2 minute cadence. Through dedicated techniques for detrending light curves, identifying preliminary flare candidates, and validating them via machine learning, we established a catalog of 1016 flares from 193 compact stars, including 182 from 58 sdB/sdO stars and 834 from 135 WDs, respectively. However, all flaring compact stars showed signs of contamination from nearby objects or companion stars, preventing sole attribution of the detected flares. For WDs, it is highly probable that the flares originated from their cool MS companions. In contrast, the higher luminosities of sdB/sdO stars diminish companion contributions, suggesting that detected flares originated from sdB/sdO stars themselves or through close magnetic interactions with companions. Focusing on a refined sample of 23 flares from 13 sdB/sdO stars, we found their flare frequency distributions were slightly divergent from those of cool MS stars; instead, they resemble those of hot B/A-type MS stars having radiative envelopes. This similarity implies that the flares on sdB/sdO stars, if these flares did originate from them, may share underlying mechanisms with hot MS stars, which warrants further investigation.
Europe. La perception des syndicats par les salarié·es : logiques politiques et sociales ou logiques nationales ?
Authors: Haute Tristan 
Published: April 2024

Cet article montre, à partir d’une analyse des données de l’International Social Survey Programme (ISSP) et dans la continuité de précédents travaux, que la perception des syndicats par les salarié·es européen·nes est fortement liée à leurs caractéristiques professionnelles et à leurs attitudes politiques. Contrairement à l’adhésion syndicale, les différences entre pays sont plutôt faibles et ne s’expliquent pas par des facteurs institutionnels nationaux.
Royaume-Uni. Les revenus du travail : une succession de chocs
Authors: Freyssinet Jacques 
Published: April 2024

Comme le reste du monde, le Royaume-Uni est frappé à partir de 2019 par des chocs sanitaires et économiques qui se répercutent sur les revenus du travail. Face à la pandémie, le gouvernement adopte des mesures qui les préservent globalement. En revanche, en 2022 et 2023, l’inflation engendre une crise du pouvoir d’achat à l’origine de conflits sociaux d’une ampleur exceptionnelle. Aujourd’hui, la perspective d’une stagnation suivie d’une faible croissance fait prévoir que le niveau du salaire réel ne rattrapera qu’en 2028 son niveau de 2008, à la veille de la crise financière.
Les Jeux en valent-ils la chandelle ?
Authors: Gayant Jean-Pascal 
Published: April 2024

Cet article détaille tout d’abord les coûts supportés par les villes organisatrices de Jeux olympiques, en se penchant, en particulier, sur la fraction de ces coûts supportée par le contribuable, pour relativiser la validité de la formule « Les Jeux financent les Jeux », abondamment mise en avant par les organisateurs de Paris 2024. L’étude de l’impact économique des Jeux, à court terme et à long terme, permet ensuite de conclure qu’ils sont à l’origine de retombées conséquentes, mais qu’il est vain d’espérer que les citoyens ne soient pas mis à contribution pour compléter le financement de l’événement .
La religion athlétique de Coubertin, admirateur de l’olympisme nazi
Authors: Brohm Jean-Marie 
Published: April 2024

Le néo-olympisme que Pierre de Coubertin et ses disciples conçurent comme un mouvement « religieux » (la « religion athlétique ») ne fut pas seulement une vision du monde d’allure mystique, mais aussi une idéologie politique conservatrice sur bien des points réactionnaires : nationaliste, colonialiste, antisocialiste, misogyne. Lors des Jeux olympiques de Berlin en 1936, Coubertin, au nom de « l’idéal olympique » et de sa « flamme », s’aligna totalement sur la propagande du Troisième Reich, allant jusqu’à « félicite[r] hautement M. Hitler, en qui il salue un des plus grands esprits constructeurs de ce temps » .
Book Review: Natale, Simone. <em>Deceitful Media: Artificial Intelligence and Social Life after the Turing Test </em>(New York: Oxford University Press, 2021)
Authors: Narain Mansa 
Published: April 2024

Simone Natale’s Deceitful Media offers a compelling examination of AI through the lens of deception, using the controversial demonstration of Google Duplex as an entry point. The book delves into how AI technologies, rather than mimicking human intelligence, alter social interactions and perceptions by exploiting users’ expectations. Natale introduces the concept of “banal deception” to explore how AI developers craft user experiences that rely on subtle, everyday forms of misdirection. Drawing from interdisciplinary sources, Natale situates the discussion in a historical context, referencing Alan Turing and tracing the evolution of AI, including Joseph Weizenbaum’s ELIZA and the Loebner Prize competition. While Natale critiques the ethical and societal implications of AI, he calls for a nuanced understanding of human–AI interactions. Natale’s insightful analysis of voice assistants like Siri underscores concerns over user autonomy and data exploitation. Overall, Deceitful Media invites readers to critically engage with AI’s role in society, offering valuable perspectives for scholars, developers, and policymakers.