bluuebunny/crossref_metadata_2025 huggingface dataset:
İSNAD Atıf Sistemi: Türkçe – İngilizce – Arapça - Farsça
Authors: Demir Abdullah
Published: March 2024

İSNAD Atıf Sistemi (www.isnadsistemi.org), Sivas Cumhuriyet Üniversitesinin proje desteği ile akademik araştırmalarda kullanılmak üzere Türkiye merkezli ve Türkçe olarak geliştirilen bir akademik yazım ve kaynak gösterim sistemidir. İSNAD, akademik araştırma, yazım ve yayın etiğiyle ilgili temel kuralları kapsar. Bu, bir yazının başlığının belirlenmesinden özetinin yazılmasına ve anahtar kavramlarının seçimine, başlık formatından tablo ve şekillerin oluşturulmasına, İngilizce, Arapça ve diğer dillerdeki eser adları ve yazar isimlerinin yazılmasına, tarih ve yüzyılların gösterilmesine, yayın etiğine dikkat edilmesine, kaynak eserden alıntı yapılmasına ve atıf bilgilerinin düzenlenmesine kadar geniş bir yelpazeyi içerir. Bilindiği üzere kaynak gösterimi, belirli kurallara uygun olarak yapılmalıdır; bu hem bilginin bilimsel doğruluğu hem de fikri mülkiyet haklarına saygı açısından önemlidir. Bir bilimsel çalışmanın hazırlanmasında kullanılan kaynaklar, diğer araştırmacılar tarafından erişilebilir ve doğrulanabilir olacak şekilde bibliyografik bileşenleriyle doğru ve eksiksiz olarak yazılmalıdır. İSNAD Atıf Sistemi’nde; atıf yapılan kaynağa dair bilgiler, metin içinde (Yazar Soyadı, Basım Tarihi, Sayfa No.) şeklinde veya dipnotta "Yazar Adı Soyadı, Eser Adı, Sayfa No." düzeninde ilgili bilim dalının genel kullanımına uyularak yazılabilmektedir. Ancak kaynakça her iki kullanımda da aynı şekilde oluşturulmaktadır. İSNAD; EndNote, Zotero, Mendeley ve Citavi gibi akademik yazım araçları için hazırlanmış şablonlarıyla kullanımı kolay bir sistemdir. İSNAD'ın kullanımı, aslı İngilizce ve tam metinleri ücretli olan atıf stillerinin Türkiye ve Türk Cumhuriyetlerinde tam olarak öğrenilememesinden ve yaygınlaşamamasından kaynaklanan eksiklikleri giderecektir.
Effect of industry-specialist auditors, auditor's tenure, and auditor's size on the quality of disclosure in the UAE Stock Exchange
Authors: Mohaisen Hussein Ali , Saedi Rahman , Ali Khalid Sabah
Published: March 2024

Having access to real-world information and accurate data is a key factor in improving auditor performance, which in turn impacts business performance and decision-making. Consequently, this research aims to determine how financial institutions' levels of experience impact the accuracy of the information they disclose. The present statistical population consists of all 127 businesses listed on the United Arab Emirates Stock Exchange. This type of research is categorized as applied studies in relation to the research methods used in the UAE stock market. Using a systematic deletion procedure, 46 companies were chosen based on the study's inclusion criteria. The findings revealed that in the UAE, the quality of financial information disclosure for companies listed on the UAE stock exchange is significantly affected by the auditor's decision-making experience, the duration of their job, and the size of the auditor.
Prediction model for behavioral intention to use E-HRM through awareness in Jordanian five-star hotels
Authors: Alsheikh Ghaith Abdulraheem Ali , Al-Ghalabi Ruba Risheed , Altarawneh Abeer , Al-Shamaileh Laith R.
Published: March 2024

Using web-based technologies in various HR procedures is the concept of Electronic Human Resource Management or E-HRM. It makes a big difference to the efficiency of the business by providing several options for getting things done quickly. Nevertheless, there has been scant investigation into this field, and its maximum potential remains untapped, despite its meteoric rise. The present research also suggests adding the Technology Acceptance Model (TAM) to the E-HRM continuity model to find out what factors affect workers' behavioral intention to use E-HRM systems, and how awareness plays a role in this. In order to help advance E-HRM as a field, this study aims to expand the theoretical bounds of existing research. 400 prospective employees were scouted from Jordanian five-star hotels as part of the convenience sampling procedure used to get the data. Starting in January 2022, the data was collected over one month. We used a Structural Equation Model (SEM) with Smart PLS on the dataset to evaluate our hypothesis. The study found that behavioral intention to use E-HRM is significantly influenced by perceived usefulness, perceived ease of use, trust, and subjective norms. The results only backed up two of the four hypotheses on the moderator effect. Hotel workers will be better able to handle high levels of stress and conduct their jobs more efficiently if the industry adopts E-HRM technology.
FRUTAS DO CERRADO COMO ADJUNTOS CERVEJEIROS
Authors: Santos W.B.dos , Rigo R.L. , Santos J.M , Martins G.A.S , Santos C.C.A.A.
Published: March 2024

A incorporação de frutas do Cerrado como adjuntos cervejeiros tem ganhado destaque devido à agregação de sabor, aroma e compostos bioativos, como carotenoides e polifenóis à cerveja. Este capítulo examina o crescimento do mercado de cervejas no Brasil, abordando a legislação associada à adição de adjuntos na produção de cerveja. Além disso, são discutidas as etapas de produção em que as frutas podem ser incorporadas, influenciando características sensoriais, tecnológicas e nutricionais. Essa revisão contribui para promover o uso de frutas do Cerrado como adjuntos cervejeiros, destacando seu potencial impacto na preservação ambiental através do ecoextrativismo e no desenvolvimento econômico regional. A utilização dessas frutas no processo cervejeiro atende às demandas do mercado por cervejas especiais, com características regionais, favorecendo a autenticidade da indústria cervejeira brasileira.
PEQUI (CARYOCAR BRASILIENSE E CARYOCAR CORIACEUM): IMPORTÂNCIA SOCIOECONÔMICA, PRINCIPAIS FITOQUÍMICOS E PROPRIEDADES BIOATIVAS
Authors: Garcia Lucas Silveira , Cunha Alisson Luiz Felix da , Costa Bárbara Almeida , Oliveira Gabriella Roberta Silva , Mendonça Henrique , Reis Gabriel Dias dos , Silva Viviane Dias Medeiros , Correia Vinícius Tadeu da Veiga , Reina Luisa Del Carmen Barrett , Melo Júlio Onésio Ferreira
Published: March 2024

Os biomas brasileiros Cerrado e Caatinga compartilham algumas similaridades, como possuírem clima semiárido e rica biodiversidade animal e vegetal. Plantas da família Caryocaraceae existem nos dois biomas, como o pequizeiro das espécies Caryocar brasiliense e Caryocar coriaceum, que pertencem ao Cerrado e a Caatinga, respectivamente. Seus frutos, o pequi, asseguram à população segurança alimentar e nutricional, geração de renda, aumento da diversidade alimentar e incentivo ao consumo, à conservação e recuperação desses biomas. Além disso, o pequi integra a tradição e a cultura da população local, sendo considerado patrimônio cultural sertanejo. Atualmente, tem-se evidenciado a composição fitoquímica e as propriedades bioativas benéficas à saúde, desses frutos, tornando-os matérias-primas para diversos segmentos das indústrias alimentícia, farmacêutica e cosmética.
Kinematics Mathematical Modelling of Lower Limb Exoskeleton for Paralyzed Stroke Patients
Authors: Muhammad Adib bin Abdul Rahman  , Vivaindran Chettiar Kathiravel Chettiar  , Muhammad Nazrin Shah Shahrol Aman  , Lim Chee Chin  , Shafriza Nisha Basah  , Hiroshi Takemura  , Ewe Juan Yeap
Published: March 2024

This paper presents the development of a lower limb rehabilitation robot to be used with bedridden patients. Strokes are one of the significant causes of death in 17% of the 109,155 medically certified death in 2020 in Malaysia. In most cases, stroke paralysis affects the opposite side of the damaged brain, and any part of the body can be affected. 90% of stroke patients get paralysis to some degree. Patients can recover from the disease and restore body motions by undergoing paralysis stroke physiotherapy, which involves numerous sessions with patients. There were several successful robotic rehabilitations in recent years; however, their design is inflexible and large, requiring the patient to sit or stand in a static position. This project will be built on a motor-driven parallel architecture that will offer motion assistance throughout the human’s wide range of motion (ROM). This project development is divided into two parts: structure design and simulation. The design process for the lower limb devices used syncretization and mathematical analysis. The structure design is from the kinematic analysis. The mathematical models are then used to design in MATLAB simulation which is trajectory simulation. The outcome shows that the simulations that have been developed is compatible with the motion of human lower limb. This robot develops for bedridden use of lower limb rehabilitation exercises.
Detection of Malicious Websites using Machine Learning
Authors: Kumar S Ashok , Brindha Dr D
Published: March 2024

Finding dangerous websites has grown more important as online risks have multiplied in order to protect users' security and privacy. This research uses machine learning techniques to providea new method for spotting dangerous websites. In order to build a strong classifier that can differentiatebetween websites that are harmful and those that arebenign, the suggested approach makes use of a wide range of variables that are taken from user behavior,network traffic, and website content. Analyzing a variety of parameters, including domain age, IP repute, URL structure, HTML content, SSL certificate information, and user interaction patterns,is part of the feature extraction process. These characteristics offer insightful information about the behavior and characteristics of websites, which helps the classifier distinguish between dangerous and legitimate entities.
Status of Instructional Leadership Practices in Botswana's Public Technical and Vocational Education and Training: A Case of Brigades
Authors: Monthusi Kaisara Baemedi
Published: March 2024

This qualitative multi-case study explores instructional leadership practices at Botswana's brigades, a key provider of semi-skilled Technical and Vocational Education and Training (TVET) programmes. This study investigated the perspectives of instructional leaders and lecturers at two institutions in the Southern District to understand their experiences with leadership practices. Drawing on Hallinger and Murphy's (1985) framework, this research examines how instructional leadership unfolds within brigades, focusing on defining the mission, managing curriculum and instruction, and fostering a positive learning environment. Furthermore, it explores the collaborative practices of the leadership team, including principals, deputy principals, and department heads. The findings reveal a general understanding of instructional leadership among participants, with some evidence of practices, such as curriculum management and stakeholder involvement. However, concerns have been raised regarding communication gaps, limited shared leadership, and ineffective evaluation. The study also identified essential competencies for instructional leaders, including communication, planning, and resource management. Key challenges include information overload, resource shortage, and staff training gaps. The participants suggested strategies for improvement, emphasizing streamlined expectations, consistent monitoring, leadership development, and adequate resourcing. Overall, the study contributes to a deeper understanding of instructional leadership in Botswana's TVET sector and provides insights for enhancing programme quality and graduate employability.
Techno Medcare Glucose and Health Monitoring System Using IOT
Authors: S. Senthazhai. , N. Anbarasi. , N AshaPriya. , S Nivedha. , M. Saranya.
Published: March 2024

Monitoring vital signs and stress levels plays a pivotal role in healthcare, yet challenges such as limited access to medical professionals, high consultation expenses, and infrastructure upkeep pose barriers to widespread monitoring. This paper proposes a streamlined solution by introducing an electronic health wearable capable of monitoring vital signs and glucose levels through IR sensors, alongside a stress monitoring headband. Additionally, the system integrates reminders for sedentary behavior and hydration, and features fall detection mechanisms using vibration motors and gyro sensors. To bolster accessibility, individuals can consult healthcare professionals via chat and video calls to review their health metrics. Moreover, appointments with doctors can be conveniently pre-scheduled, reducing consultation expenses and circumventing the need for extensive medical infrastructure. This approach offers a promising avenue for efficient and economical monitoring of vital signs and stress levels, thereby enhancing healthcare accessibility.
Jets with a Twist: The Emergence of FR0 Jets in a 3D GRMHD Simulation of Zero-angular-momentum Black Hole Accretion
Authors: Lalakos Aretaios , Tchekhovskoy Alexander , Bromberg Omer , Gottlieb Ore , Jacquemin-Ide Jonatan , Liska Matthew , Zhang Haocheng
Published: March 2024

Spinning supermassive black holes (BHs) in active galactic nuclei magnetically launch relativistic collimated outflows, or jets. Without angular momentum supply, such jets are thought to perish within 3 orders of magnitude in distance from the BH, well before reaching kiloparsec scales. We study the survival of such jets at the largest scale separation to date, via 3D general relativistic magnetohydrodynamic simulations of rapidly spinning BHs immersed into uniform zero-angular-momentum gas threaded by a weak vertical magnetic field. We place the gas outside the BH sphere of influence, or the Bondi radius, chosen to be much larger than the BH gravitational radius, R
B = 103
R
g. The BH develops dynamically important large-scale magnetic fields, forms a magnetically arrested disk (MAD), and launches relativistic jets that propagate well outside R
B and suppress BH accretion to 1.5% of the Bondi rate,

M

̇

B

. Thus, low-angular-momentum accretion in the MAD state can form large-scale jets in Fanaroff–Riley (FR) type I and II galaxies. Subsequently, the disk shrinks and exits the MAD state: barely a disk (BAD), it rapidly precesses, whips the jets around, globally destroys them, and lets 5%–10% of

M

̇

B

reach the BH. Thereafter, the disk starts rocking back and forth by angles 90°–180°: the rocking accretion disk (RAD) launches weak intermittent jets that spread their energy over a large area and suppress BH accretion to ≲2%

M

̇

B

. Because the BAD and RAD states tangle up the jets and destroy them well inside R
B, they are promising candidates for the more abundant, but less luminous, class of FR0 galaxies.
Probing the Diversity of Type Ia Supernova Light Curves in the Open Supernova Catalog
Authors: Bi Chang , Woods Tyrone E. , Fabbro Sébastien
Published: March 2024

The ever-growing sample of observed supernovae (SNe) enhances our capacity for comprehensive SN population studies, providing a richer data set for understanding the diverse characteristics of Type Ia supernovae (SNe Ia) and possibly those of their progenitors. Here, we present a data-driven analysis of observed SN Ia photometric light curves collected in the Open Supernova Catalog. Where available, we add the environmental information from the host galaxy. We focus on identifying subclasses of SNe Ia without imposing the predefined subclasses found in the literature to date. To do so, we employ an implicit rank-minimizing autoencoder neural network for developing low-dimensional data representations, providing a compact representation of the SN light-curve diversity. When we analyze light curves alone, we find that one of our resulting latent variables is strongly correlated with redshift, allowing us to approximately “de-redshift” the other latent variables describing each event. After doing so, we find that three of our latent variables account for ∼95% of the variance in our sample, and provide a natural separation between 91T and 91bg thermonuclear SNe. Of note, the 02cx subclass is not unambiguously delineated from the 91bg sample in our results, nor do either the overluminous 91T or the underluminous 91bg/02cx samples form a clearly distinct population from the broader sample of “other” SN Ia events. We identify the physical characteristics of SN light curves that best distinguish SNe 91T from SNe 91bg and 02cx, and discuss prospects for future refinements and applications to other classes of SNe as well as other transients.
Merger-driven Growth of Intermediate-mass Black Holes: Constraints from Hubble Space Telescope Imaging of Hyper-luminous X-Ray Sources
Authors: Barrows R. Scott , Mezcua Mar , Comerford Julia M. , Stern Daniel
Published: March 2024

Hyper-luminous X-ray sources (HLXs) are extragalactic off-nuclear X-ray sources with luminosities exceeding the theoretical limit for accretion onto stellar-mass compact objects. Many HLXs may represent intermediate-mass black holes (IMBHs) deposited in galaxy halos through mergers, and the properties of the stellar cores surrounding HLXs provide powerful constraints on this scenario. Therefore, we have systematically built the largest sample of HLX candidates with archival Hubble Space Telescope (HST) imaging (24) for the first uniform population study of HLX stellar cores down to low masses. Based on their host galaxy redshifts, at least 21 (88%) have stellar core masses ≥ 107
M
⊙ and hence are consistent with accretion onto massive black holes from external galaxies. In 50% of the sample, the HST imaging reveals features connecting the HLXs with their host galaxies, strongly suggesting against the background/foreground contaminant possibility in these cases. Assuming a mass scaling relation for active galactic nuclei and accounting for an estimated contamination fraction of 29%, up to ∼60% of our sample may be associated with IMBHs. Similar to previously known HLXs, the X-ray luminosities are systematically elevated relative to their stellar core masses, possibly from merger-driven accretion rate enhancements. The least massive stellar cores are preferentially found at larger nuclear offsets and are more likely to remain wandering in their host galaxy halos. The HLX galaxy occupation fraction is ∼ 10−2 and has a strong inverse mass dependence. Up to three of the HLX candidates (12%) are potentially consistent with formation within globular clusters or with exceptionally luminous X-ray binaries.
Helium-deficient ER UMa-type Dwarf Nova below the Period Minimum with a Hot Secondary
Authors: Lee Youngdae , Moon Dae-Sik , Kim Sang Chul , Park Hong Soo , Ni Yuan Qi
Published: March 2024

We present the discovery of a peculiar dwarf nova KSP-OT-201712a using high-cadence, multicolor observations made with the Korea Microlensing Telescope Network. KSP-OT-201712a exhibits a rare presence of outbursts during standstills, as well as strong Hα emission for a dwarf nova below the period minimum with an orbital period of 58.75 ± 0.02 minutes. The outburst cycles are ∼6.6 days within standstills but increase to ∼15 days outside of them. Both B − V and V − I colors become bluer and redder as the outburst luminosities increase and decrease, respectively, for the outburst within standstill, while they evolve in the opposite directions outside of the standstills. The presence of strong double-peaked Hα and weak He i emission lines with He/H flux ratio of 0.27, together with absorption lines of Mg b and Na D in the source, leads to the estimation T
eff ≃ 4570 ± 40 K, [Fe/H] ≃ 0.06 ± 0.15 dex, and log g ≃ 4.5 ± 0.1 for its secondary. KSP-OT-201712a is the second He-deficient dwarf nova below the period minimum, while the temperature of the secondary is measured for the first time in such objects. We identify it to be an ER UMa-type dwarf nova, suggesting that the evolution of dwarf novae across the period minimum is accompanied by large mass transfers. The high temperature of the secondary indicates that the system started its mass transfer when the secondary was about 93% of its main-sequence age. The system will evolve to a helium cataclysmic variable or to AM CVn once its hydrogen envelope is exhausted before it explodes as a Type Ia supernova.
Multiple Peaks and a Long Precursor in the Type IIn Supernova 2021qqp: An Energetic Explosion in a Complex Circumstellar Environment
Authors: Hiramatsu Daichi , Matsumoto Tatsuya , Berger Edo , Ransome Conor , Villar V. Ashley , Gomez Sebastian , Cendes Yvette , De Kishalay , Bostroem K. Azalee , Farah Joseph , Howell D. Andrew , McCully Curtis , Newsome Megan , Padilla Gonzalez Estefania , Pellegrino Craig , Suzuki Akihiro , Terreran Giacomo
Published: March 2024

We present optical photometry and spectroscopy of the Type IIn supernova (SN) 2021qqp. Its unusual light curve is marked by a long precursor for ≈300 days, a rapid increase in brightness for ≈60 days, and then a sharp increase of ≈1.6 mag in only a few days to a first peak of M

r
≈ −19.5 mag. The light curve then declines rapidly until it rebrightens to a second distinct peak of M

r
≈ −17.3 mag centered at ≈335 days after the first peak. The spectra are dominated by Balmer lines with a complex morphology, including a narrow component with a width of ≈1300 km s−1 (first peak) and ≈2500 km s−1 (second peak) that we associate with the circumstellar medium (CSM) and a P Cygni component with an absorption velocity of ≈8500 km s−1 (first peak) and ≈5600 km s−1 (second peak) that we associate with the SN–CSM interaction shell. Using the luminosity and velocity evolution, we construct a flexible analytical model, finding two significant mass-loss episodes with peak mass loss rates of ≈10 and ≈5 M
⊙ yr−1 about 0.8 and 2 yr before explosion, respectively, with a total CSM mass of ≈2–4 M
⊙. We show that the most recent mass-loss episode could explain the precursor for the year preceding the explosion. The SN ejecta mass is constrained to be ≈5–30 M
⊙ for an explosion energy of ≈(3–10) × 1051 erg. We discuss eruptive massive stars (luminous blue variable, pulsational pair instability) and an extreme stellar merger with a compact object as possible progenitor channels.
Impact of Overlapping Signals on Parameterized Post-Newtonian Coefficients in Tests of Gravity
Authors: Dang Yixuan , Wang Ziming , Liang Dicong , Shao Lijing
Published: March 2024

Gravitational waves have been instrumental in providing deep insights into the nature of gravity. Next-generation detectors, such as the Einstein Telescope, are predicted to have a higher detection rate given the increased sensitivity and lower cutoff frequency. However, this increased sensitivity raises challenges concerning parameter estimation due to the foreseeable overlap of signals from multiple sources. Overlapping signals (OSs), if not properly identified, may introduce biases in estimating post-Newtonian (PN) coefficients in parameterized tests of general relativity (GR). We investigate how OSs affect −1PN to 2PN terms in parameterized GR tests, examining their potential to falsely suggest GR deviations. We estimate the prevalence of such misleading signals in next-generation detectors, and their collective influence on GR tests. We compare the effects of OSs on coefficients at different PN orders, concluding that overall the 1PN coefficient suffers the most. Our findings also reveal that while a nonnegligible portion of OSs exhibit biases in PN coefficients that might individually prefer to conclude deviations from GR, collectively, the direction to deviate is random and a statistical combination will still be in favor of GR.
Global Impact of Emerging Internetwork Fields on the Low Solar Atmosphere
Authors: Gošić M. , De Pontieu B. , Sainz Dalda A.
Published: March 2024

Small-scale, newly emerging internetwork (IN) magnetic fields are considered a viable source of energy and mass for the solar chromosphere and possibly the corona. Multiple studies show that single events of flux emergence can indeed locally heat the low solar atmosphere through interactions of the upward propagating magnetic loops and the preexisting ambient field lines. However, the global impact of the newly emerging IN fields on the solar atmosphere is still unknown. In this paper, we study the spatiotemporal evolution of IN bipolar flux features and analyze their impact on the energetics and dynamics of the quiet-Sun atmosphere. We use high-resolution, multiwavelength, coordinated observations obtained with the Interface Region Imaging Spectrograph, Hinode, and the Solar Dynamics Observatory to identify emerging IN magnetic fields and follow their evolution. Our observational results suggest that only the largest IN bipoles are capable of heating locally the low solar atmosphere, while the global contribution of these bipoles appears to be marginal. However, the total number of bipoles detected and their impact estimated in this work is limited by the sensitivity level, spatial resolution, and duration of our observations. To detect smaller and weaker IN fields that would maintain the basal flux, and examine their contribution to the chromospheric heating, we will need higher resolution, higher sensitivity, and longer time series obtained with current and next-generation ground- and space-based telescopes.
Episodic Energy Release during the Main and Post-impulsive Phases of a Solar Flare
Authors: Wei Yuqian , Chen 陈 Bin 彬 , Yu 余 Sijie 思捷 , Wang Haimin , Zhang Yixian , Glesener Lindsay
Published: March 2024

When and where the magnetic field energy is released and converted in eruptive solar flares remains an outstanding topic in solar physics. To shed light on this question, here we report multiwavelength observations of a C9.4-class eruptive limb flare that occurred on 2017 August 20. The flare, accompanied by a magnetic flux rope eruption and a white light coronal mass ejection, features three post-impulsive X-ray and microwave bursts immediately following its main impulsive phase. For each burst, both microwave and X-ray imaging suggest that the nonthermal electrons are located in the above-the-loop-top region. Interestingly, contrary to many other flares, the peak flux of the three post-impulsive microwave and X-ray bursts shows an increase for later bursts. Spectral analysis reveals that the sources have a hardening spectral index, suggesting a more efficient electron acceleration into the later post-impulsive bursts. We observe a positive correlation between the acceleration of the magnetic flux rope and the nonthermal energy release during the post-impulsive bursts in the same event. Intriguingly, different from some other eruptive events, this correlation does not hold for the main impulse phase of this event, which we interpret as energy release due to the tether-cutting reconnection before the primary flux rope acceleration occurs. In addition, using footpoint brightenings at conjugate flare ribbons, a weakening reconnection guide field is inferred, which may also contribute to the hardening of the nonthermal electrons during the post-impulsive phase.
The Recurrent Nova V745 Sco had a Classical Nova Eruption in 1897 July
Authors: Schaefer Bradley E.
Published: March 2024

Recurrent nova V745 Sco is discovered to have a long-lost nova eruption in 1897 July. Now with four known eruptions (in 1897, 1937, 1989, and 2014), plus two likely missed eruptions (around 1917 and 1963), the average recurrence time is 23 yr, with a fractional rms of 13%.
Pre-impact Albedo Map and Photometric Properties of the (65803) Didymos Asteroid Binary System from DART and Ground-based Data
Authors: Buratti B. J. , Pittichová J. , Mishra I. , Hillier J. K. , Mosher J. A. , Chesley S. R. , Sunshine J. M. , Barnouin O. , Ernst C. M. , Daly R. T. , Li J-Y , Cheng A. F. , Rivkin A. S. , Rizos J.
Published: March 2024

This study provides a pre-impact map of the albedo of the Double Asteroid Redirection Test (DART) target Dimorphos corrected for all the effects of viewing geometry, as well as an estimate of photometric roughness for the hemisphere imaged by DART. Other photometric properties are derived for the (65803) Didymos binary system based on DART and ground-based measurements obtained at JPL’s Table Mountain Observatory. The roughness, geometric albedo, phase curve and phase integral, and single particle phase function are typical of the S-family of asteroids. The major remaining uncertainty lies in the behavior of the phase curve below 7°. These results provide a baseline for comparison with Hera measurements, leading to an understanding of the quantitative effects of the kinetic impactor mitigation strategy.
A new species of Sarcotaces (Copepoda: Cyclopoida: Philichthyidae) from Antimora rostrata (Actinopterygii: Gadiformes: Moridae)
Authors: Piasecki Wojciech , Boxshall Geoffrey A.
Published: March 2024

Parasitic copepods of the genus Sarcotaces occur in galls inside the skeletal musculature of fishes. The gall, hosting a highly metamorphosed drop-shaped female contains also a black fluid capable of staining the fish tissues during filleting. Their marine fish hosts are globally distributed and until recently, eight nominal species have been described from fish hosts representing eight fish families. Females are quite similar in their morphology, therefore the males are used for the species determination. The aim of this study was to provide a detailed morphological characterization of the Sarcotaces specimens found in muscles of the blue antimora, Antimora rostrata (Günther, 1878) originating from deep open waters of the Atlantic. The present paper describes and illustrates Sarcotaces antimorisp. nov. The new species differs from its congeners in the shape of the cephalothorax, relative proportions and structure of the caudal rami, and in the setal formula of the antennulae of the male.
Le rôle des revues en France depuis l’après-Guerre
Authors: Dosse François
Published: March 2024

Cette contribution vise à mettre en évidence que les idées sont portées par des revues, sans lesquelles, comme le dit Pierre Nora, la vie intellectuelle serait réduite à un encéphalogramme plat. Lieux de sociabilité, elles sont le creuset des grandes controverses du xx e siècle. On peut néanmoins distinguer depuis 1945 des périodes différentes entre le culte de l’intellectuel prophétique engagé de l’immédiat après-guerre et l’intellectuel à l’écoute, médiateur entre les laboratoires d’experts et l’opinion publique de la fin du xx e siècle. Les revues auront permis des croisements interdisciplinaires féconds, des diagonales heuristiques comme les qualifiaient Roger Caillois.
La formation continue saisie par le droit
Authors: Caillaud Pascal , Luttringer Jean-Marie
Published: March 2024

Comme tout corpus juridique, le droit de la formation professionnelle continue se caractérise par des normes, des institutions, des prérogatives et des obligations particulières, fruits d’une évolution historique donnée. La formation continue obéit ainsi à un régime juridique aux sources éclatées, donnant une place singulière aux partenaires sociaux, tout en étant soumis au pouvoir créateur des juges. Saisie par la législation comme un objet juridique particulier, elle s’accompagne d’un droit à l’information, au conseil et à l’orientation professionnelle pour le bénéficiaire, en activité comme en recherche d’emploi. Son accès dans l’entreprise s’organise entre libertés et obligations pour l’employeur et le salarié, dans un écosystème institutionnel soumis aux enjeux de financement. Enfin, sa reconnaissance soulève des problématiques de certifications, de classifications et de qualification professionnelles, au cœur des relations professionnelles. À l’aube d’une nouvelle réforme annoncée, les mutations contemporaines de la société conduiront inévitablement à une nouvelle adaptation de ce droit. Acte de liberté, source de responsabilité, objet de garanties collectives et sociales, la formation professionnelle n’a pas fini d’être « saisie » par le droit.
Interview de Jérôme Notin
Authors: Rimlinger Annick
Published: March 2024

Avec plus de 20 années passées dans le secteur privé, Jérôme Notin a toujours travaillé dans le domaine de l’innovation et du développement de structures. Fort de ses expériences, il rejoint l’ANSSI en mai 2016 en qualité de préfigurateur du dispositif. Il est assure, depuis sa création en mars 2017, la direction générale du groupement d’intérêt public.
Well-posedness and Ulam-Hyers stability results of solutions to pantograph fractional stochastic differential equations in the sense of conformable derivatives
Authors: Albalawi Wedad , Liaqat Muhammad Imran , Ud Din Fahim , Nisar Kottakkaran Sooppy , Abdel-Aty Abdel-Haleem
Published: March 2024

One kind of stochastic delay differential equation in which the delay term is dependent on a proportion of the current time is the pantograph stochastic differential equation. Electric current collection, nonlinear dynamics, quantum mechanics, and electrodynamics are among the phenomena modeled using this equation. A key idea in physics and mathematics is the well-posedness of a differential equation, which guarantees that the solution to the problem exists and is a unique and meaningful solution that relies continuously on the initial condition and the value of the fractional derivative. Ulam-Hyers stability is a property of equations that states that if a function is approximately satisfying the equation, then there exists an exact solution that is close to the function. Inspired by these findings, in this research work, we established the Ulam-Hyers stability and well-posedness of solutions of pantograph fractional stochastic differential equations (PFSDEs) in the framework of conformable derivatives. In addition, we provided examples to analyze the theoretical results.
Analytical solutions and asymptotic behaviors to the vacuum free boundary problem for 2D Navier-Stokes equations with degenerate viscosity
Authors: Li Kunquan
Published: March 2024

In this paper, we constructed a new class of analytical solutions to the isentropic compressible Navier-Stokes equations with vacuum free boundary in polar coordinates. These rotational solutions captured the physical vacuum phenomenon that the sound speed was $ C^{1/2} $-Hölder continuous across the boundary, and they provided some new information on our understanding of ocean vortices and reference examples for simulations of computing flows. It was shown that both radial and angular velocity components and their derivatives will tend to zero as $ t\rightarrow +\infty $ and the free boundary will grow linearly in time, which happens to be consistent with the linear growth properties of inviscid fluids. The large time behavior of the free boundary $ r = a(t) $ was completely determined by a second order nonlinear ordinary differential equation (ODE) with parameters of rotational strength $ \xi $, adiabatic exponent $ \gamma $, and viscosity coefficients. We tracked the profile and large time behavior of $ a(t) $ by exploring the intrinsic structure of the ODE and the contradiction argument, instead of introducing some physical quantities, such as the total mass, the momentum weight and the total energy, etc., which are usually used in the previous literature. In particular, these results can be applied to the 2D Navier-Stokes equations with constant viscosity and the Euler equations.
Fractional calculus analysis: investigating Drinfeld-Sokolov-Wilson system and Harry Dym equations via meshless procedures
Authors: Khan Muhammad Nawaz , Ahmad Imtiaz , Shakeel Mehnaz , Jan Rashid
Published: March 2024

In this study, we present two meshless schemes, namely the radial basis function (RBF) method and the polynomial method, for the numerical investigation of the time-fractional Harry Dym equation and the Drinfeld-Sokolov-Wilson system. In both methods, the temporal derivatives are estimated using the Caputo operator, while the spatial derivatives are approximated either through radial basis functions or polynomials. Additionally, a collocation approach is employed to convert the system of equations into a system of linear equations that is easier to solve. The accuracy of the methods is assessed by calculating the $ L_{\infty} $ error norm, and the outcomes are displayed through tables and figures. The simulation results indicate that both methods exhibit strong performance in handling the fractional partial differential equations (PDEs) under investigation.
Controversiste malgré lui
Authors: Boisson Didier
Published: March 2024

En 1607, se déroule à Lorges en Beauce une conférence théologique entre le jacobin Jean Journé et le pasteur de l’Église de Lorges-Marchenoir, Samuel de Chambaran qui est issu d’une famille de la noblesse de Romorantin. Elle nous est principalement connue par la publication cette même année d’un compte rendu de cette « dispute » par Samuel de Chambaran. Ce débat, provoqué par l’ecclésiastique qui a déjà controversé à plusieurs reprises avec le pasteur de Châteaudun, se déroule dans un cadre classique pour de tels affrontements, comme ceux étudiés par Émile Kappler. Cependant, la conférence théologique n’arrive pas à son terme en raison de son interdiction par le magistrat, le bailli de Beaugency, qui craint des troubles confessionnels. Il en est de même des différentes thématiques qui sont proposées lors de cette controverse : c’est un débat très classique autour des questions de la messe, de l’eucharistie ou du purgatoire. Néanmoins, alors que souvent en suivant la méthode de Jean Gontery, c’est l’ecclésiastique qui mène les débats dans de telles circonstances, lors de cette conférence c’est assurément le pasteur qui a la main malgré son peu d’expérience dans ce domaine.
Frères ennemis. Gillet et Grente en compagnie (1933-1951)
Authors: Moigne Frédéric Le
Published: March 2024

Tous deux candidats à l’Académie française, le P. Gillet, maître général des dominicains (1929-1951), et Mgr Grente, évêque du Mans (1918-1959), nourrissent une rivalité profonde. Celle-ci s’exprime tout particulièrement en 1936, au moment de l’élection au fauteuil 32 pour succéder à Pierre de Nolhac. Le succès de Mgr Grente mérite d’être expliqué à la lumière de de la défaite du P. Gillet. Comment le maître général des dominicains, au sommet de sa carrière en octobre 1936, lorsqu’il reçoit Mussolini, lors de l’inauguration de la basilique Sainte-Sabine à Rome, en arrive-t-il à perdre l’élection académique quinze jours plus tard ? La réponse est à trouver dans les stratégies mises en place par les adversaires et renseignent tout un contexte littéraire, mondain et ecclésiastique. À travers la trajectoire de ces deux personnages, c’est en effet un jeu de relations et de réputations qui vaut d’être interrogé. Ce sont bien des réseaux qui s’affrontent derrière Grente et Gillet. Évêque diocésain contre maître général de l’ordre dominicain, province française contre centralité romaine, c’est tout un échiquier qui se laisse découvrir et un affrontement tactique autour d’une place académique à Paris. Un journal intime, un livre d’or, un album photographique et des correspondances constituent les sources inédites de cette étude.
«Союз родства и узы крови» : генеалогия и структура правящей элиты России 1725-1762 гг.
Authors: Chernikov Sergey V.
Published: March 2024

L’étude des liens de parenté dans l’élite dirigeante de la Russie des années 1725-1762 a permis d’identifier la structure de cette élite : le cercle intérieur, qui représente 40 % (dont 10 % des groupes les plus solidaires), le cercle extérieur (16 %) et la périphérie (44 %). L’analyse montre qu’il existait une très forte corrélation entre la place d’un homme dans le réseau de parenté, sa carrière et sa richesse. En outre, il s’avère que la Table des rangs limitait considérablement la mobilité verticale : le nombre de nouveaux venus rejoignant l’élite dans les années 1725-1762 était deux fois plus faible que dans les années 1613-1689. Elle entretenait le « népotisme » des vieilles familles et favorisait sa diffusion parmi les nouvelles. La Table des rangs était le produit d’une pensée rationnelle, mais l’étroitesse du lien entre les relations de parenté et le service nous permet de remettre en question le point de vue historiographique traditionnel selon lequel le système de promotion créé par Pierre le Grand était fondamentalement différent des pratiques du siècle précédent.
Sur les traces de Radio Donna : une radio féministe dans le contexte des années de plomb
Authors: Betancor Abbud Maria Teresa
Published: March 2024

Radio Donna est un espace féministe autonome fondé au sein de la radio libre Radio Città Futura à Rome en 1976. Au début, cette radio est pensée comme un espace de contre-information féministe, mais très vite, Radio Donna s’établit comme un espace d’échange, de rencontre, et d’organisation politique. En brisant l’unidirectionnalité traditionnelle des médias radiophoniques, Radio Donna cède la parole à ses auditrices leur conférant une liberté de parole jusqu’ici inédite ainsi que la possibilité de s’organiser de façon autonome. Le 9 janvier 1979, cette émission est attaquée par un commando armé d’extrême-droite qui pénètre dans les studios de Radio Città Futura pendant la transmission de Radio Donna et en particulier du collectif des casalinghe, mêlant ainsi l’histoire du mouvement féministe avec l’histoire du terrorisme.
Une radio, quatre langues. Ethnographie d’une radio communautaire en contexte de domination linguistique à Huayacocotla, Veracruz, Mexique
Authors: Sciullo Diane di
Published: March 2024

Actuellement, le Mexique est un des dix pays du monde à totaliser le plus de langues autochtones parlées. Celles-ci sont toutes en « danger » ou « menacées » de disparition à différents degrés (INALI [Instituto Nacional de Lenguas Indígenas], 2008). C’est dans ce contexte linguicide qu’évolue La Radio Huaya, la plus ancienne radio communautaire et autochtone du Mexique. Située dans la Huasteca du Veracruz où cohabitent différentes communautés ethniques et linguistiques, elle est la seule du pays à diffuser ses programmes en quatre langues : en Otomí, en Náhuatl, en Tepehua et en Espagnol. En se fondant sur l’analyse de données relevées lors d’une enquête de terrain effectué en 2022 cet article vise à comprendre ce qu’il se passe lorsqu'une radio qui diffuse sur « onde libre » décide elle-même du contenu de ses programmes dans des langues comprises uniquement par les minorités ethniques de la Sierra, excluant ainsi l’audience hégémonique hispanophone ? Et à comprendre comment se traduisent les processus d’identification des minorités ethniques aux animateur·ices autochtones ?
Broadcasting Freedom: Thinking Beyond Domination and Resistance on Réunion Island’s Radio
Authors: Rhead Kristi
Published: March 2024

This article examines domination, resistance, and identity on Réunion Island through the lens of Radio FreeDom, a local unfiltered radio station. On FreeDom, residents of the French overseas department can call in directly to the on-air hosts at any time to discuss any subject live on the radio. With nearly 30% of the population tuning in and participating in dialogue all day, the station is often coined the “voice of Réunion.” In 1991, the government shutdown FreeDom, triggering protests among the most violent in the island’s history. This article considers the legacy of these events in conversation with the radio’s contemporary role in Réunionese society to show how FreeDom transcends binary categorizations of domination and resistance, bringing questions of identity, region, and nation into disarray.
Radio et identité culturelle : une contestation de la «  guyanité  » à travers l’analyse d’une radio locale dans l’Ouest guyanais
Authors: Vassaux Tristan
Published: March 2024

Cet article examine le rôle de la radio en Guyane française, en se concentrant sur une station locale, Kam’Radio à Saint-Laurent-du-Maroni. L’article s’inscrit dans une perspective plus large et explore les dynamiques de résistance face au concept de guyanité promu par la communauté créole. L’analyse met en lumière les caractéristiques uniques de cette radio qui lui permettent de se distinguer dans le paysage radiophonique guyanais. Kam’Radio, axée sur le Bas-Maroni, représente une radio à la fois territoriale et multiculturelle, abordant les préoccupations locales et transnationales. À travers ses émissions en sranantongo, le créole du voisin Surinam, ainsi que ses diffusions en direct sur les pratiques culturelles et cultuelles amérindiennes de la région, Kam’Radio promeut une identité plurielle, reflétant ainsi la diversité du territoire dans lequel elle est enracinée, en opposition à un centre-littoral encore trop autocentré sur la question de l’identité guyanaise.
Voix et destin : comment la guérilla des FARC a perdu la bataille des ondes en Colombie (2000-2010)
Authors: Roux Clément
Published: March 2024

Au début du XXIeème siècle, la guérilla marxiste-léniniste des Forces Armées Révolutionnaires de Colombie (FARC) a engagé une bataille radiophonique avec l’armée colombienne. Dans un environnement médiatique hostile, les FARC ont déployé pendant plus d’une décennie la Voix de la résistance, un réseau de stations de radio clandestines dans les zones périphériques qu’elles contrôlaient. Cette étude analyse la genèse, le fonctionnement et l’impact de cette stratégie de propagande insurgée, qui a dû faire face à la contre-offensive victorieuse des stations de radio de l’armée colombienne. Elle met en lumière les succès éphémères et les difficultés rencontrées par la Voix de la résistance, tout en explorant les enjeux et les conséquences de cette « bataille des ondes » asymétrique.
La déségrégation des radios commerciales aux États-Unis
Authors: Coddington Amy
Published: March 2024

Ce chapitre examine les enjeux de race autour de la programmation radio aux États-Unis en se concentrant sur le développement d’un nouveau format radiophonique à la fin des années 1980. Ce nouveau format, baptisé Crossover par l’industrie radio, a attiré une coalition d’auditeurs Noirs, Blancs et Hispaniques en diffusant des musiques up-tempo dance, R&B et pop. Ce faisant, ce format a remis en question la structure ségréguée de l’industrie de la radio, en prenant en compte la présence et les goûts des auditeurs hispaniques et en commercialisant des audiences jeunes et multiculturelles. Le succès de ce format a inﬂuencé la programmation des stations de radio Top 40, faisant entrer les sons des publics multiculturels dans la musique populaire américaine mainstream. Parmi ces sons figurait le hip hop, que les programmateurs de Crossover ont adopté pour sa capacité à séduire des publics divers ; ces stations ont contribué à faciliter la croissance de ce genre en plein essor. Mais les logiques racialisées de ces stations étaient complexes, car elles refusaient de soutenir les intérêts des minorités ciblées au nom de la colorblindness et de l’inclusion.
La nuit où les postes périphériques firent front commun : une expérience radiophonique en stéréophonie entre RTL et Europe n° 1 à la fin des années 60
Authors: Legay Richard
Published: March 2024

En mai 1968, les deux grandes stations périphériques francophones des années 60, RTL et Europe n° 1, diffusent, de façon simultanée, une émission de divertissement commune. Cet article est une analyse approfondie d’un enregistrement de cette émission, mis en parallèle avec les archives des stations, qui révèle la complexité du paysage radiophonique français à la fin des années 60 entre compétition et rapprochement des stations commerciales et tensions avec l’ORTF. Cette analyse, qui s’appuie à la fois sur les études sonores et l’histoire des médias, montre que l’émission met en scène le rapprochement entre les stations autant qu’elle y participe, jusque dans le son par l’utilisation de la stéréophonie.
Le nouveau Hörspiel ou l’art de la radio composée. Deux exemples de Mauricio Kagel et Dieter Schnebel
Authors: Demoz Héloïse
Published: March 2024

Autour des années 1960, moment important de l’avant-garde européenne, certaines pièces radiophoniques se rapprochent des œuvres dites de théâtre musical expérimental du point de vue de la théâtralité, de l’espace et du matériau. En s’intéressant au répertoire de Mauricio Kagel et Dieter Schnebel, cet article mettra en lumière le retournement qui s’est opéré entre les paramètres visuels et auditifs en montrant notamment la façon dont le nouveau Hörspiel a bénéficié de la dramaturgie scénique et à lui-même aidé à la création d’un nouvel espace dans les œuvres de théâtre musical expérimental.