bluuebunny/crossref_metadata_2025_split huggingface dataset:
Test de Autoevaluación de Meditación Transcendental: a psychometric study of Peruvian school children and adolescents
Authors: Fergusson Lee , Rainforth Maxwell , Ortiz-Cabrejos Javier , Bonshek Anna 
Published: July 2024

The specific, as well as holistic, effects of practicing the Transcendental Meditation technique have been thoroughly documented. Findings associated with the practice have included a range of physiological, psychological and sociological benefits, but have also encompassed measures of general health, well-being and human development. However, few if any indigenous test instruments have been used to gather these data. In Perú, a test instrument called Test de Autoevaluación de Meditación Transcendental (i.e., Self-Assessment Test of Transcendental Meditation) designed to measure benefits of Transcendental Meditation in school children and adolescents has been deployed with some degree of success. The test was designed about 25 years ago to measure physical health, cognitive health, emotional health, and school performance, and has been completed by about 50,000 primary and secondary school students since its introduction. Recently published studies have documented the results. But the test has never been psychometrically evaluated. The purpose of the present study therefore was to rigorously assess the reliability and construct validity of the instrument using exploratory factor analysis and confirmatory factor analysis. Results of these analyses revealed a five latent factors—more alertness and energy, improved physical and mental health, enhanced cognitive performance, enhanced emotional and behavioural self-regulation, and more fulfilling interpersonal relationships—which reliably predicted an overall scale of health in students. Application of a revised Test de Autoevaluación de Meditación Transcendental is now ready for further use in Perú and, with translation, other school settings.
Enhanced piezoelectrical properties of Pb(Zn1/3Nb2/3)O3 - PbTiO3 single crystals by AC poling
Authors: Yamashita Yohachi John , Kurita Ibuki , Tanaka Mario , Xiang Yu , Maiwa Hiroshi , Lim Leong-Chew , Xu Zhengze , Liu Sipan , Jiang Xiaoning 
Published: July 2024

Abstract
We investigated the effectiveness of AC poling (ACP) processes for [001] direction oriented Pb(Zn1/3Nb2/3)O3-0.055PbTiO3 (PZN-PT) single crystals (SCs) and obtained a dielectric constant ε
33
T/ε
0 of 6680 and piezoelectric strain constant d
33 of 2760 pC/N, a piezoelectric charge constant g
33 of 46.7 × 10−3 Vm/N, and a figure of merit (FOM) (d
33 × g
33) of 129 × 10−12 m2/N. These values were 19%, 31%, 10%, and 45% higher than those of DC poling PZN-PT SC, respectively. The phase change temperature T
pc, Curie temperature T
c, and acoustic impedance (Z
33) of the ACP PZN-PT SC were 121 °C, 165 °C, and 30.5 MRayls, respectively. Compared with Pb(Mg1/3Nb2/3)O3−0.3PbTiO3 SCs, the higher T
pc, T
c, and FOM and lower Z
33 of the PZN-PT SCs enable the applications in high temperature with superior Z
33 matching to water and human body than conventional Pb(Mg1/3Nb2/3)O3−0.3PbTiO3 SCs , and these findings are vital for a wide range of ultrasonic transducer applications.
Perfil epidemiológico de Morbidade Hospitalar por Asma no Brasil, entre 2019 e 2023: Estudo Ecológico
Authors: Costa Igor Gabriel Mendes , Medeiros Rômulo Geisel Santos , Da Silva Marcos Rossi , Souza Laiza Carla de França , Rodrigues Manuela Geovana de Paula , Cavalheri Bruna Coelho , Amoras Felipe Greiner , Costa Jeane Rafaele Nunes , De Miranda Henrique Evelim Menezes Rodrigues , Fróes Carlos César Freire , Felix Elzanice de Fátima Brandão Falcão , Santos Raphael Almeida , Mansur Renato José Kezen Leite 
Published: July 2024

INTRODUÇÃO: A asma é uma doença crônica das vias aéreas, caracterizada por inflamação e estreitamento dos brônquios, levando a sintomas como falta de ar, chiado, tosse e aperto no peito. Pode ser desencadeada por alérgenos, poluentes, infecções ou mudanças climáticas. O tratamento inclui medicamentos e estratégias para evitar gatilhos. Este estudo analisa internações, custos e características demográficas de pacientes com asma no Brasil, com o objetivo de informar políticas de saúde para reduzir seu impacto. OBJETIVO: Este estudo visa analisar as internações hospitalares por Asma no Brasil de janeiro de 2019 a dezembro de 2023, com ênfase na distribuição por faixa etária, sexo dos pacientes, tipos de atendimento e custos hospitalares. METODOLOGIA: Trata-se de um estudo retrospectivo quantitativo utilizando dados do Sistema de Informações Hospitalares do SUS (SIH/SUS), acessados via base de dados secundária do TABNET/DATASUS. Foram analisadas internações, faixa etária, sexo dos pacientes, tipos de atendimento e custos hospitalares por Asma no Brasil entre janeiro de 2019 e dezembro de 2023. A análise utilizou estatística descritiva e tabulação em planilha eletrônica do Microsoft Excel 2016, com apresentação dos resultados em tabelas no Microsoft Word 10. RESULTADOS: Entre janeiro de 2019 e dezembro de 2023, foram registradas 354.115 internações por asma no Brasil. A Região Nordeste liderou com 34,84% das internações, seguida pelo Sudeste (33,12%) e Sul (15,74%). O custo total dos serviços hospitalares foi de R$ 214.575.468,32, com o Sudeste apresentando o maior gasto (R$ 81.948.416,47). A faixa etária mais afetada foi de 1 a 4 anos, com 114.324 internações. A maioria das internações foi para urgência (97,08%) e predominou o sexo masculino (50,62%). CONCLUSÃO: Entre 2019 e 2023, o Brasil registrou 354.115 internações por asma, com a Região Nordeste liderando em número de casos e a Região Sudeste em custos. A maioria das internações foi de urgência e afetou predominantemente crianças de 1 a 4 anos. A análise aponta para a necessidade urgente de estratégias de prevenção e manejo ambulatorial para reduzir hospitalizações e custos, além de focar nas faixas etárias mais vulneráveis.
Influence of degree of learning on rate of forgetting of tonal sequences
Authors: Rivera-Lares Karim , Baddeley Alan , Della Sala Sergio 
Published: July 2024

AbstractInitial performance is frequently equated in studies that compare forgetting rates across groups. However, since the encoding capacity of different groups can be different, some procedures to match initial degree of learning need to be implemented, adding confounding variables such as longer exposures to the material, which would create memories of a different age. Slamecka and McElree Journal of Experimental Psychology: Learning, Memory, and Cognition, 9, 384–397, (1983) and our previous work found that the rate of forgetting was independent from initial degree of learning using verbal material. The present study seeks to determine whether this pattern holds true when undertaken with nonverbal material. In two experiments, we manipulate initial degree of learning by varying the number of presentations of the material and studying the effect on the forgetting rates. A set of 30 tonal sequences were presented to young, healthy participants either once or three times. Forgetting was evaluated in a yes/no recognition paradigm immediately and 1 hour or 24 hours after the study phase. A different subset of 10 sequences was tested along with 10 nontargets at each retention interval. The results of these experiments showed that initial acquisition was modulated by the number of repetitions. However, the forgetting rates were independent of initial degree of learning. These results are in keeping with the pattern found by Slamecka and McElree, and in our own previous studies. They suggest that the pattern of parallel forgetting after different levels of initial learning is not limited to verbal material.
The time course of Temporal Binding in social and nonsocial interactions
Authors: Silver Crystal A. , Tatler Benjamin W. , Chakravarthi Ramakrishna , Timmermans Bert 
Published: July 2024

Abstract
Temporal Binding (TB) is the subjective compression of action-effect intervals. While the effects of nonsocial actions are highly predictable, it is not the case when interacting with conspecifics, who often act under their own volition, at a time of their choosing. Given the relative differences in action-effect predictability in non-social and social interactions, it is plausible that TB and its properties differ across these situations. To examine this, in two experiments, we compared the time course of TB in social and nonsocial interactions, systematically varying action-effect intervals (200–2,100 ms). Participants were told they were (a) interacting with another person via a live webcam, who was in fact a confederate (social condition), (b) interacting with pre-recorded videos (nonsocial condition), or (c) observing two pre-recorded videos (control condition; Experiment 2). Results across experiments showed greater TB for social compared to nonsocial conditions, and the difference was proportional to the action-effect intervals. Further, in Experiment 1, TB was consistently observed throughout the experiment for social interactions, whereas nonsocial TB decreased from the first to the second half of the experiment. In Experiment 2, the nonsocial condition did not differ from control, whereas the social condition did, exhibiting enhanced binding. We argue these results suggest that the sociality of an interaction modulates the ‘internal clock’ of time perception.
Enfermedad de Rosai-Dorfman Ganglionar Tratado con Hiperoxigenación Hiperbárica con Respuesta Significativa Confirmado por PET-CT
Authors: Cerrillo Alfaro Diana , Gutiérrez Méndez Karla Alejandra , Galván Salazar Gabriel , Padilla Isassi Alejandro , Bernal Montalvo América Patricia 
Published: July 2024

La enfermedad de Rosai-Dorfman-Destombes es una histiocitosis de células no Langerhans cuya etiología no es totalmente conocida, suele tener un curso crónico, benigno y autolimitado. Actualmente, se considera un trastorno histiocítico no neoplásico reactivo que carece de clonalidad. Suele afectar a niños y adultos jóvenes; más del 80% de los casos ocurre en menores de 20 años y predomina en varones, con una relación de 1.4:1. La presentación clínica clásica es una linfadenopatía cervical bilateral masiva e indolora, con presencia o no de sintomatología asociada como fiebre, pérdida de peso y diaforesis. También puede existir afectación extraganglionar. El diagnóstico definitivo se realiza mediante biopsia con inmunohistoquímica, donde el hallazgo clásico es histiocitosis sinusoidal positiva para S-100 y emperipolesis. Actualmente no existe un tratamiento estandarizado; sin embargo, se utilizan esteroides como primera línea. La importancia de este caso clínico, radica en la respuesta benéfica obtenida, al someter a la paciente a terapia alternativa con cámara hiperbárica. Abriendo la puerta a nuevas áreas de investigación con resultados prometedores, al implementarse como terapia combinada. Así como se ha realizado ya en patologías como coadyuvante en tumores e infecciones. Aumentando la tasa de éxito de respuesta al tratamiento.
Are These Planets or Brown Dwarfs? Broadly Solar Compositions from High-resolution Atmospheric Retrievals of ∼10–30 M
Jup Companions
Authors: Xuan Jerry W. , Hsu Chih-Chun , Finnerty Luke , Wang Jason , Ruffio Jean-Baptiste , Zhang Yapeng , Knutson Heather A. , Mawet Dimitri , Mamajek Eric E. , Inglis Julie , Wallack Nicole L. , Bryan Marta L. , Blake Geoffrey A. , Mollière Paul , Hejazi Neda , Baker Ashley , Bartos Randall , Calvin Benjamin , Cetre Sylvain , Delorme Jacques-Robert , Doppmann Greg , Echeverri Daniel , Fitzgerald Michael P. , Jovanovic Nemanja , Liberman Joshua , López Ronald A. , Morris Evan , Pezzato Jacklyn , Sappey Ben , Schofield Tobias , Skemer Andrew , Wallace J. Kent , Wang Ji , Agrawal Shubh , Horstman Katelyn 
Published: July 2024

Abstract
Using Keck Planet Imager and Characterizer high-resolution (R ∼ 35,000) spectroscopy from 2.29 to 2.49 μm, we present uniform atmospheric retrievals for eight young substellar companions with masses of ∼10–30 M
Jup, orbital separations spanning ∼50–360 au, and T
eff between ∼1500 and 2600 K. We find that all companions have solar C/O ratios and metallicities to within the 1σ–2σ level, with the measurements clustered around solar composition. Stars in the same stellar associations as our systems have near-solar abundances, so these results indicate that this population of companions is consistent with formation via direct gravitational collapse. Alternatively, core accretion outside the CO snowline would be compatible with our measurements, though the high mass ratios of most systems would require rapid core assembly and gas accretion in massive disks. On a population level, our findings can be contrasted with abundance measurements for directly imaged planets with m < 10 M
Jup, which show tentative atmospheric metal enrichment compared to their host stars. In addition, the atmospheric compositions of our sample of companions are distinct from those of hot Jupiters, which most likely form via core accretion. For two companions with T
eff ∼ 1700–2000 K (κ And b and GSC 6214–210 b), our best-fit models prefer a nongray cloud model with >3σ significance. The cloudy models yield 2σ−3σ lower T
eff for these companions, though the C/O and [C/H] still agree between cloudy and clear models at the 1σ level. Finally, we constrain 12CO/13CO for three companions with the highest signal-to-noise ratio data (GQ Lup b, HIP 79098b, and DH Tau b) and report

v
sin
i

and radial velocities for all companions.
Figuring Out Gas and Galaxies in Enzo (FOGGIE). VII. The (Dis)assembly of Stellar Halos
Authors: Wright Anna C. , Tumlinson Jason , Peeples Molly S. , O’Shea Brian W. , Lochhaas Cassandra , Corlies Lauren , Smith Britton D. , Binh Nguyen , Augustin Ramona , Simons Raymond C. 
Published: July 2024

Abstract
Over the next decade, the astronomical community will be commissioning multiple wide-field observatories well suited for studying stellar halos in both integrated light and resolved stars. In preparation for this, we use five high-resolution cosmological simulations of Milky Way–like galaxies from the FOGGIE suite to explore the properties and components of stellar halos. These simulations are run with high time (5 Myr) and stellar mass (1000 M
⊙) resolution to better model the properties and origins of low-density regions like stellar halos. We find that the FOGGIE stellar halos have masses, metallicity gradients, and surface brightness profiles that are consistent with observations. In agreement with other simulations, the FOGGIE stellar halos receive 30%–40% of their mass from in situ stars. However, this population is more centrally concentrated in the FOGGIE simulations and therefore does not contribute excess light to the halo outskirts. The remaining stars are accreted from ∼10–50 other galaxies, with the majority of the accreted mass originating in two to four galaxies. While the inner halo (r < 50 kpc) of each FOGGIE galaxy has a large number of contributors, the halo outskirts of three of the five galaxies are primarily made up of stars from only a few contributors. We predict that upcoming wide-field observatories, like the Nancy Grace Roman Space Telescope, will probe stellar halos around Milky Way–like galaxies out to ∼100 kpc in integrated light and will be able to distinguish the debris of dwarf galaxies with extended star formation histories from the underlying halo with resolved color–magnitude diagrams.
A Study of the Spectral Properties of Gamma-Ray Bursts with the Precursors and Main Bursts
Authors: Deng Hui-Ying , Peng Zhao-Yang , Chen Jia-Ming , Yin Yue , Li Ting 
Published: July 2024

Abstract
There is no consensus yet on whether the precursor and the main burst of gamma-ray bursts (GRBs) have the same origin, and their jet composition is still unclear. In order to further investigate this issue, we systematically search 21 Fermi GRBs with both a precursor and main burst for spectral analysis. We first perform Bayesian time-resolved spectral analysis and find that almost all the precursors and the main bursts (94.4%) exhibit thermal components and that the vast majority of them have a low-energy spectral index (α; 72.2%) that exceeds the limit of synchrotron radiation. We then analyze the evolution and correlation of the spectral parameters and find that approximately half of the α (50%) of the precursors and the main bursts evolve in a similar pattern, while peak energy (E

p
; 55.6%) behaves similarly, and their evolution is mainly characterized by flux tracking; for the α−F (the flux) relation, more than half of the precursors and the main bursts (61.1%) exhibit roughly similar patterns; the E

p
−F relation in both the precursor and main burst (100%) exhibits a positive correlation of at least moderate strength. Next, we constrain the outflow properties of the precursors and the main bursts and find that most of them exhibit typical properties of photosphere radiation. Finally, we compare the time-integrated spectra of the precursors and the main bursts and find that nearly all of them are located in similar regions of the Amati relation and follow the Yonetoku relation. Therefore, we conclude that main bursts are continuations of precursors and may share a common physical origin.
Modeling the Propagation of Slow Magnetoacoustic Waves in a Multistranded Coronal Loop
Authors: Krishna Prasad S. , Van Doorsselaere T. 
Published: July 2024

Abstract
We study the propagation properties of slow magnetoacoustic waves in a multithermal coronal loop using a 3D MHD model, for the first time. A bundle of 33 vertical cylinders, each of 100 km radius, randomly distributed over a circular region of radius 1 Mm, is considered to represent the coronal loop. The slow waves are driven by perturbing the vertical velocity (v

z
) at the base of the loop. We apply forward modeling to the simulation results to generate synthetic images in the coronal channels of the Solar Dynamics Observatory/Atmospheric Imaging Assembly. Furthermore, we add appropriate data noise to enable direct comparison with the real observations. It is found that the synthetic images at the instrument resolution show noncospatial features in different temperature channels in agreement with previous observations. Time–distance maps are constructed from the synthetic data to study the propagation properties. The results indicate that the oscillations are only visible in specific channels, depending on the temperature range of the plasma existing within the loop. Additionally, the propagation speed of slow waves is also found to be sensitive to the available temperature range. Overall, we propose that the cross-field thermal properties of coronal structures can be inferred using a combination of numerical simulations and observations of slow magnetoacoustic waves.
A Deficit of Massive White Dwarfs in Gaia Astrometric Binaries
Authors: Hallakoun Na’ama , Shahaf Sahar , Mazeh Tsevi , Toonen Silvia , Ben-Ami Sagi 
Published: July 2024

Abstract
The third data release of Gaia introduced a large catalog of astrometric binaries, out of which about 3200 are likely main-sequence stars with a white dwarf (WD) companion. These binaries are typically found with orbital separations of ∼1 au, a separation range that was largely unexplored due to observational challenges. Such systems are likely to have undergone a phase of stable mass transfer while the WD progenitor was on the asymptotic giant branch. Here we study the WD mass distribution of a volume-complete sample of binaries with K/M dwarf primaries and orbital separations of ∼1 au. We find that the number of massive WDs relative to the total number of WDs in these systems is smaller by an order of magnitude compared to their occurrence among single WDs in the field. One possible reason can be an implicit selection of the WD mass range if these are indeed post-stable-mass-transfer systems. Another reason can be the lack of merger products in our sample compared to the field, due to the relatively tight orbital separations of these systems. In addition, we find that about 14% of these systems have distant tertiary companions within 1 pc.
L’Arabe Marocain : diachronie de la formation du lexique d’une langue afro-asiatique
Authors: Elmedlaoui Mohamed 
Published: July 2024

Ce travail examine les conditions sociolinguistiques et les processus phonologiques diachroniques qui ont abouti à l’émergence d’une langue afro-asiatique (chamito-sémitique) : l’arabe marocain. Son hypothèse de départ, soutenue par des données empiriques et des descriptives comparées, est que c’est le substrat berbère qui – en contact sociolinguistique étroit du berbère en tant que Langue-1 avec plusieurs variantes et registres de l’arabe en tant que Langues-2 – constitue le module générateur diachronique de l’arabe marocain, surtout son lexique. Des règles formelles de correspondances, appuyées d’une riche documentation en données empiriques, ont été fournies pour défendre cette thèse. Les tendances actuelles de l’évolution, toujours en cours, de l’arabe marocain sont également examinées dans le travail.
Une lecture récente de la stèle libyque figurée de Saharidj (Imchedallen) Compte rendu de lecture
Authors: Ghaki Mansour , Laporte Jean-Pierre 
Published: July 2024

Une publication récente tente de dater les stèles libyques figurées de Kabylie. Le raisonnement présenté porte sur le vieillissement de la surface des grès (la « patine »), tout en ignorant les données scientifiques récentes sur ce point et l’évolution de l’iconographie dans la région. Il repose en fait sur une suite d’approximations et d’ a priori , qui minorent notamment l’ancienneté de l’écriture libyque et considèrent la conquête arabe et l’islamisation comme cause de son abandon immédiat. On note également des problèmes de lecture et d’interprétation d’une stèle de Saharidj Imchedallen (vallée de la Soummam, Kabylie).
The French fast breeder program and the European nuclear integration
Authors: Padovan Maria 
Published: July 2024

Pendant plus d’une décennie (1959-1969), la Commission Euratom (Communauté européenne de l’énergie atomique) a essayé de convaincre les États membres de réaliser une grande centrale à neutrons rapides, en créant une « entreprise commune » dans le cadre du traité Euratom. En 1974, les producteurs d’électricité français, italiens et ouest-allemands ont créé la multinationale NERSA (Centrale nucléaire européenne à neutrons rapides SA) pour construire une telle centrale, nommée Superphénix. Même si NERSA avait le droit de demander le statut d’entreprise commune, elle ne l’a jamais fait. S’appuyant sur des documents d’archives, cet article retrace l’approche ambiguë des acteurs français vis-à-vis d’Euratom et apporte un éclairage nouveau sur la relation entre les acteurs français du nucléaire et l’intégration nucléaire européenne. Il montre que le désir de la Commission Euratom de réaliser une centrale rapide dans le cadre communautaire a coïncidé avec une période cruciale de la stratégie nucléaire française, au cours de laquelle la technologie à neutrons rapides était considérée comme vitale pour le succès nucléaire de la France. En conséquence, les pouvoirs publics français ont éloigné le programme nucléaire français de la Commission Euratom afin d’éviter un contrôle communautaire sur Superphénix. L’article questionne également l’urgence du développement industriel de la technologie à neutrons rapides, en soutenant que les technocrates français ont construit un récit d’urgence qui a conduit la Commission Euratom à investir dans cette technologie.