bluuebunny/crossref_metadata_2025_split huggingface dataset:
La aplicación de herramientas digitales con el enfoque ontosemiótico y su influencia en el aprendizaje de funciones exponenciales y logarítmicas
Authors: Ruiz Castillo Juan Carlos 
Published: January 2022

OBJETIVO: determinar la influencia de la aplicación de herramientas digitales con el enfoque ontosemiótico, en el aprendizaje de las funciones exponenciales y logarítmicas en los estudiantes del Profesorado de Enseñanza Media en Ciencias especializado en Física-Matemática, para poder evidenciar los resultados cognitivos. MÉTODO: por el tipo de investigación, el método es descriptivo, porque los resultados obtenidos describieron la situación actual del fenómeno en estudio. Es correlacional puesto que se señaló la relación entre variables. RESULTADOS: se determinó los resultados cognitivos al utilizar herramientas digitales haciendo uso del enfoque ontosemiótico, teniendo un efecto significativo en los estudiantes, los cuales presentaron evaluaciones con las siguientes medidas de tendencia central: promedio de 91 puntos, moda de 94 puntos y mediana de 90 puntos; señalando que la aplicación de herramientas digitales más el uso de EOS puede ayudar a incrementar los conocimientos y así mismo el rendimiento académico de los estudiantes. CONCLUSIÓN: se determinó la influencia de la aplicación de herramientas digitales con el Enfoque Ontosemiótico EOS, en el aprendizaje de los estudiantes de Matemática II de la Escuela en Formación de Profesores en Enseñanza Media EFPEM, acerca del contenido de las funciones exponenciales y logarítmicas siendo los resultados obtenidos categorizados como excelentes.
The Effect of Solar Wind Turbulence on Parallel and Oblique Firehose Instabilities
Authors: Markovskii S. A. , Vasquez Bernard J. 
Published: January 2022

Abstract
We consider the firehose instability coexisting with the omnipresent ambient solar wind turbulence. The characteristic temporal and spatial scales of the turbulence are comparable to those of the instability. Therefore, turbulence may violate the common assumption of a uniform and stationary background used to describe instabilities and make the properties of the instabilities different. To investigate this effect, we perform three-dimensional hybrid simulations with particle-in-cell ions and a quasi-neutralizing electron fluid. We find that the turbulence significantly reduces the growth rates and saturation levels of both instabilities. Comparing the cases with and without turbulence, the former results in a higher temperature anisotropy in the asymptotic marginally stable state at large times. In the former case, the distribution function averaged over the simulation box is also closer to the initial one.
Particle Acceleration by Pickup Process Upstream of Relativistic Shocks
Authors: Iwamoto Masanori , Amano Takanobu , Matsumoto Yosuke , Matsukiyo Shuichi , Hoshino Masahiro 
Published: January 2022

Abstract
Particle acceleration at magnetized purely perpendicular relativistic shocks in electron–ion plasmas is studied by means of two-dimensional particle-in-cell simulations. Magnetized shocks with the upstream bulk Lorentz factor γ
1 ≫ 1 are known to emit intense electromagnetic waves from the shock front, which induce electrostatic plasma waves (wakefield) and transverse filamentary structures in the upstream region via stimulated/induced Raman scattering and filamentation instability, respectively. The wakefield and filaments inject a fraction of the incoming particles into a particle acceleration process, in which particles are once decoupled from the upstream bulk flow by the wakefield, and are picked up again by the flow. The picked-up particles are accelerated by the motional electric field. The maximum attainable Lorentz factor is estimated as

γ

max
,
e

∼
α

γ

1

3

for electrons and

γ

max
,
i

∼
(
1
+

m

e

γ

1

/

m

i

)

γ

1

2

for ions, where α ∼ 10 is determined from our simulation results. α can increase up to γ
1 for a weakly magnetized shock if γ
1 is sufficiently large. This result indicates that highly relativistic astrophysical shocks such as external shocks of gamma-ray bursts can be an efficient particle accelerator.
Considerations for Optimizing the Photometric Classification of Supernovae from the Rubin Observatory
Authors: Alves Catarina S. , Peiris Hiranya V. , Lochner Michelle , McEwen Jason D. , Allam Tarek , Biswas Rahul ,   The LSST Dark Energy Science Collaboration
Published: January 2022

Abstract
The Vera C. Rubin Observatory will increase the number of observed supernovae (SNe) by an order of magnitude; however, it is impossible to spectroscopically confirm the class for all SNe discovered. Thus, photometric classification is crucial, but its accuracy depends on the not-yet-finalized observing strategy of Rubin Observatory’s Legacy Survey of Space and Time (LSST). We quantitatively analyze the impact of the LSST observing strategy on SNe classification using simulated multiband light curves from the Photometric LSST Astronomical Time-Series Classification Challenge (PLAsTiCC). First, we augment the simulated training set to be representative of the photometric redshift distribution per SNe class, the cadence of observations, and the flux uncertainty distribution of the test set. Then we build a classifier using the photometric transient classification library snmachine, based on wavelet features obtained from Gaussian process fits, yielding a similar performance to the winning PLAsTiCC entry. We study the classification performance for SNe with different properties within a single simulated observing strategy. We find that season length is important, with light curves of 150 days yielding the highest performance. Cadence also has an important impact on SNe classification; events with median inter-night gap <3.5 days yield higher classification performance. Interestingly, we find that large gaps (>10 days) in light-curve observations do not impact performance if sufficient observations are available on either side, due to the effectiveness of the Gaussian process interpolation. This analysis is the first exploration of the impact of observing strategy on photometric SN classification with LSST.
H-band Light Curves of Milky Way Cepheids via Difference Imaging
Authors: Konchady Tarini , Oelkers Ryan J. , Jones David O. , Yuan Wenlong , Macri Lucas M. , Peterson Erik R. , Riess Adam G. 
Published: January 2022

Abstract
We present H-band light curves of Milky Way classical Cepheids observed as part of the Dark Energy, H
0, and peculiar Velocities using Infrared Light from Supernovae survey with the Wide-Field Infrared Camera on the United Kingdom Infrared Telescope. Due to the crowded nature of these fields caused by defocusing the Camera, we performed difference-imaging photometry by modifying a pipeline originally developed to analyze images from the Transiting Exoplanet Survey Satellite. We achieved a photometric precision in line with expectations from photon statistics, reaching 0.01 mag for 8 ≲ H ≲ 11 mag. We used the resulting Cepheid light curves to derive corrections to “mean light” for random-phase Hubble Space Telescope observations in F160W. We find good agreement with previous phase corrections based on VI light curves from the literature, with a mean difference of −1 ± 6 mmag.
Superhorizon Perturbations: A Possible Explanation of the Hubble–Lemaître Tension and the Large-scale Anisotropy of the Universe
Authors: Tiwari Prabhakar , Kothari Rahul , Jain Pankaj 
Published: January 2022

Abstract
Current cosmological observations point to a serious discrepancy between the observed Hubble parameter obtained using direct versus cosmic microwave background radiation measurements. Besides this so-called Hubble–Lemaître tension, we also find considerable evidence in diverse cosmological observables that indicate violation of the cosmological principle. In this paper, we suggest that both these discrepancies are related and can be explained by invoking superhorizon perturbations in the universe. We implement this by considering a single superhorizon mode and showing that it leads to both a dipole in large-scale structures and a shift in the Hubble–Lemaître parameter. Furthermore, the shift is found to be independent of redshift up to a certain distance. This is nicely consistent with the data.
Plasma Emission Induced by Electron Beams in Weakly Magnetized Plasmas
Authors: Chen Yao , Zhang Zilong , Ni Sulan , Li Chuanyang , Ning Hao , Kong Xiangliang 
Published: January 2022

Abstract
Previous studies on the beam-driven plasma emission process were done mainly for unmagnetized plasmas. Here we present fully kinetic electromagnetic particle-in-cell simulations to investigate this process in weakly magnetized plasmas of the solar corona conditions. The primary mode excited is the beam-Langmuir (BL) mode via classical bump-on-tail instability. Other modes include the Whistler (W) mode excited by electron cyclotron resonance instability, the generalized Langmuir (GL) waves that include a superluminal Z-mode component with smaller wavenumber k and a thermal Langmuir component with larger k, and the fundamental (F) and harmonic (H) branches of plasma emission. Further simulations of different mass and temperature ratios of electrons and protons indicate that the GL mode and the two escaping modes (F and H) correlate positively with the BL mode in intensity, supporting that they are excited through nonlinear wave–wave coupling processes involving the BL mode. We suggest that the dominant process is the decay of the primary BL mode. This is consistent with the standard theory of plasma emission. However, the other possibility of a Z + W → O–F coalescing process for the F emission cannot be ruled out completely.
Scant Evidence for the Gangotri Wave
Authors: Dame T. M. 
Published: January 2022

Abstract
This is a brief rebuttal to the recent paper by Veena et al. entitled “A Kpc Scale Molecular Wave in the Inner Galaxy: Feather of the Milky Way?” I argue that no robust evidence is presented in the paper to support their claimed discovery of “one of the largest and most intriguing structures identified in the Milky Way,” a structure they call the Gangotri wave.
A Cross-Sectional Study of Patients’ Practices, Knowledge and Attitudes of Antibiotics among Iraqi Population
Authors: Al-Taie Anmar , Hussein Ali N , Albasry Zahraa 
Published: January 2022

Introduction: The misconception and misuse of antibiotics among the public has been widely outlined to be one of the main reasons for bacterial resistance. The aim of the present study was to assess the practices, level of knowledge and attitudes regarding the rational and self-medication use of antibiotics in the general public in different districts of Baghdad province, Iraq.
Methodology: A descriptive, cross-sectional study conducted among 384 participants through an interview using a structured 3-parts questionnaire, consisting of 24 items assessing the demographic characteristics, practices, level of knowledge and attitude towards rational antibiotics use.
Results: 45.8% of the study participants reported self-medication of antibiotics without prescription. Flu/common cold and sore throat represented the majority of medical conditions for antibiotics intake without prescription (44.9%, 31.3%) respectively. Oral amoxicillin (34.1%) was the most common non-prescription antibiotic. 50.3% had education about the rational use of antibiotics. 41.4% reported intake of antibiotics after having medical advice, 44% suggested their antibiotics not to be used by other members, and 52.9% stated the importance of antibiotic education among the public. However, 57% of the respondents had negative attitudes regarding antibiotics use for sore throat/fever, the effectiveness of antibiotics for cold/flu (54.7%) and cough (49.2%), to keep antibiotics for future use (40.9%) and not completing the antibiotic course after feeling well (49.2%).
Conclusions: A widespread use of antibiotics without prescription was reported, providing some crucial gaps and a lower level of practice, knowledge and attitudes regarding the use of antibiotics among a sample of the Iraqi population.
A retrospective evaluation of COVID-19 patients treated with Tocilizumab: who should be treated?
Authors: Çelik Ekinci Semiha , Akkaya Işık Sinem 
Published: January 2022

Introduction: Tocilizumab, can be used in the treatment of COVID-19 in patients developing cytokine storms. This study retrospectively evaluated patients treated with Tocilizumab.
Methodology: This study included 23 patients (17 men) admitted to the hospital and received Tocilizumab due to cytokine storms. The patients were categorized into three groups: “moderate, severe, and critical”. Clinical outcomes after 7 days of hospitalization were classified as “death, disease aggravation, clinical stabilization, and clinical improvement”.
Results: The mean age of the patients was 58±10.1 years. 52.2% of the patients were severely ill, and 47.8% were critically ill. After tocilizumab treatment, the mean lymphocyte count increased in all patients; the C-reactive protein levels dropped rapidly, except for one patient. After the first dose, the patients' fever dropped dramatically, and their oxygen support needs decreased. During the treatment, 82.6% of the patients were in the intensive care unit. At the end of the treatment, 56.5% had clinical improvement, 13% had clinical stabilization, and 4.3% had aggravation. Mortality occurred in 26.1%; 60.9% were discharged within a mean time of 19.14 ± 13.57 days after their treatment, and 18.2% of the critically ill and 91.7% of the severely ill patients recovered.
Conclusions: Despite high rates of recovery and discharge after the tocilizumab treatment in the severely ill patients, more than half of the critically ill patients died. Early tocilizumab treatment resulted in a high survival rate and reduced the rates of progression to more critical states and mortality. Tocilizumab treatment should be given early in patients developing cytokine storms.
COVID-19 imported cases and severity: expected information from genomic characterization of SARS-CoV-2 strains in Mozambique
Authors: Sumbana José , Passanduca Alfeu , Rubino Salvatore 
Published: January 2022

Introduction: The novel coronavirus, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), etiological agent of coronavirus disease 2019 (COVID-19) was first reported in China in December 2019 and spread worldwide. As of March 6th, 2021, there have been 116,670,105 million confirmed cases globally including 2,592,085 deaths. COVID-19 cases have been reported in 219 countries and territories, creating global panic. Mozambique has witnessed the evolution of COVID-19 epidemic associated with the weakness of health system, mostly in terms of laboratory diagnosis capacity, concerns on compliance to effective public health measures including physical distancing, use of masks in crowded indoor areas, hand hygiene, isolation and quarantine of people.
Methodology: The data included in this study were collected from published articles regarding COVID-19 imported cases and severity in Africa, especially in Mozambique. Additionally, official documents of COVID-19 epidemiology from Minister of Health and National Institute of Health of Mozambique from 22nd of March 2020 to 1st of August 2020 were included.
Results: The SARS-CoV-2 strains imported mainly from South Africa and European countries might have been playing an important role on COVID-19 epidemic evolution in Mozambique.
Conclusions: These circulating strains in the country, might be similar enough to the strains found in other countries, yet the genomic characterization is needed particularly during the phase of borders reopening through understanding the source of infections and guiding the implementation of containment and mitigation measures in the country.
Mineurs, sexualité et consentement en droit pénal
Authors: Saas Claire 
Published: January 2022

Jusqu'à l'entrée en vigueur de la loi n° 2021-478 du 21 avril 2021, le droit positif incriminant les infractions sexuelles à l'encontre de mineurs prenait en considération l'âge de la victime et de l'auteur, la nature des actes sexuels, les moyens employés, les relations entre le mineur et le mis en cause, les conséquences des violences ou menaces exercées. L'ensemble des actes de nature sexuelle d'un adulte sur un mineur de quinze ans était pénalisé, soit par le biais du viol et de l'agression sexuelle qui impliquent un forçage du consentement, soit par le biais de l'atteinte sexuelle pour laquelle le consentement est indifférent. La volonté de protéger le mineur de quinze ans de toute activité sexuelle initiée par un adulte était clairement affirmée, d'autant plus que la loi du 3 août 2018 avait simplifié la caractérisation de la contrainte morale. A la suite d'un débat médiatique assez houleux et juridiquement flou, le législateur a, tout en conservant le droit positif antérieur, créé de nouvelles infractions de viols et d'agressions sexuelles sans contrainte, menace, violence ou surprise. Sans prendre le temps d'une réflexion pluridisciplinaire et de distance à l'égard de revendications parfois radicales, le législateur a complexifié l'état du droit et l'a rendu incertain.
Les partenaires sociaux européens et la politique d’égalité de genre : de la méfiance à l’empêchement
Authors: Jacquot Sophie 
Published: January 2022

Ce texte vise à analyser la nature et l’évolution du rôle joué par les organisations représentatives du marché du travail dans la fabrique de la politique européenne d’égalité de genre. Il fait ressortir trois séquences d’action publique distinctes : une relation marquée par la méfiance jusqu’à la fin des années 1980 ; puis avec le développement du dialogue social européen et jusqu’à la fin des années 2000, une relation contrainte ; enfin la période la plus récente est celle d’une relation empêchée : la position institutionnelle privilégiée des partenaires sociaux est remise en question, ce qui réduit leur capacité à jouer un rôle central dans l’élaboration et l’orientation de la politique d’égalité de genre, leur conception restreinte du principe d’égalité contribue de plus à entraver le développement de mesures transformatrices.
Pour une genèse de l’énonciation diaristique : le journal de jeunesse de Blossom Margaret Douthat (1943-1958), lectrice de Beauvoir
Authors: Walsh Francis 
Published: January 2022

Comment analyser la genèse d’un journal, texte par définition sans avant-texte, et dont la finalité est moins l’œuvre que la vie ? Cette question, d’abord posée par P. Lejeune, ouvre la possibilité de penser une génétique de l’énonciation, du dire, de l’entre-deux de l’écriture et de la vie. La présente étude cherche en ce sens à suivre, à partir de l’exemple concret du journal de Blossom M. Douthat, le mouvement d’une « scénographie diaristique » (D. Maingueneau). Le corps de l’étude consiste en l’analyse d’une séquence de « scènes de véridiction » (M. Foucault), des scènes fondatrices où la diariste élabore les conditions de possibilité d’une transformation de soi par la vérité, et où S. de Beauvoir jouera le rôle capital de destinataire et de juge virtuel. En plus de permettre de décrire le mouvement d’une scénographie judiciaire de soi, cette forme hétérodoxe d’enquête génétique permet de penser une pratique diaristique dont la finalité serait l’écriture, c’est-à-dire ni l’œuvre ni la vie, mais l’entre-deux lui-même : la fabrique de significations. En dernière analyse, la genèse diaristique est alors l’étude de la production d’une production à la fois éthique et poétique.
Platelets Derived Microparticles in COVID-19
Authors: Abdelmaksoud Mariam Fathy , Abdelmaksoud Sahar Samir , Abdelsamee Hanaa Fathy , Ezzelregal Hieba Gamal , Alfeky Mervat Abdalhameed 
Published: January 2022

BACKGROUND:
Evidences indicate that COVID-19 infection causes hypercoagulable state with micro and macrovascular thrombosis. Platelet-derived microparticles (PDMPs) have inflammatory and diverse coagulant roles.

AIM:
The aim of the study was to assess PDMPs in patients with active and convalescent post COVID-19 infection and correlate PDMPs with clinical, radiological and laboratory findings used in follow up.

PATIENTS AND METHODS:
The study enrolled 25 patients during active COVID-19 (Group A), of them five patients had thromboembolic events (TEE); and Group B including 32 patients during post COVID-19 stages. Clinical and radiological assessment, routine biomarkers, and detection of PDMPs levels, using enzyme-linked immunosorbent assay method, were done for all patients.

RESULTS:
In addition to significant differences detected regarding hemoglobin level, total leukocyte count, absolute neutrophil count, absolute lymphocyte count, C-reactive protein level, D-dimer, and serum ferritin, and high significant differences in PDMPs levels were elicited between groups A and B (mean ± standard deviation: 38.7 ± 10.6 IU/mL, and 18.9 ± 15.3 IU/mL) respectively, with discriminative level at 20.5 IU/mL. PDMPs showed nonsignificant difference between patients with and without TEE and no correlation was detected between PDMPs and clinical or radiological severity in post-COVID-19 patients.

CONCLUSION:
In COVID-19 infection, PDMPs are related to viral activity, and their major role is inflammatory associated.
Attitudes to Eye Health
Authors: Ibanga Affiong A. , Essien Emmanuel A. , Etim Bassey A. , Udofia Owoidoho 
Published: January 2022

Introduction:
In spite of the comparatively high rate of blindness and other visual impairments in Nigeria, access to orthodox eye care remains low. Religion has been shown to have important effects on health behavior but such effects as regards access to eye health care remains insufficiently explored in local research.

Objective:
This study aims to assess the knowledge and attitudes as regard eye care and health, among religious leaders in Calabar, Cross River State, Nigeria.

Methods:
Using a qualitative design, the study was conducted among 15 religious leaders from the Christian religion in Calabar. A focus group discussion was conducted which lasted about 90 minutes and was moderated by trained staff. Audio recordings were made and transcribed for qualitative content analysis.

Results:
Participants exhibited some basic knowledge of eye disease and causes of blindness. They found yearly eye-checks acceptable and generally agreed that they would encourage their church members to see a doctor when they had eye symptoms. There was also the opinion that the need to go to the hospital was dependent on the church member’s faith and the spiritual understanding of illness etiology.

Conclusion:
There is a need to further engage religious leaders to improve their knowledge and attitudes to eye health and care. Due to the strong influence of religious leaders in a religious country such as Nigeria, they could influence their congregations positively and improve the general resort to orthodox care for eye symptoms.