bluuebunny/crossref_metadata_2025 huggingface dataset:
Treacher Collins Syndrome (mandibulofacial dysostosis) – A case report
Authors: Sharma Praveen ,   Department of Radio-diagnosis, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, India, Sam Ajina , Misbah Iffath , Prajwal M.N. ,   Department of Radio-diagnosis, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, India,   Department of Radio-diagnosis, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences, Saveetha Nagar, Thandalam, Chennai, India,   Department of Radio-diagnosis, Adichunchanagiri Institute of Medical Sciences, Bellur, Karnataka, India
Published: July 2024

Background. Treacher-Collins Syndrome (TCS) (or mandibulofacial dysostosis) is a rare autosomal dominant genetic disorder involving 1st and 2nd branchial arches present with craniofacial deformities with variable expressivity. TCS commonly manifests as facial dysmorphism with varied presentations. In this case report, we demonstrate the typical CT (Computed Tomography) findings of the characteristic features. Case report. Here, we report an 8-year-old boy who presented for evaluation of uneven facial features. Upon a multidisciplinary evaluation, he was diagnosed with TCS, and the characteristic radiological features are described in this report. Conclusions. TCS has a variable degree of phenotypic expression with no related developmental delay or neurologic disorder. Proper counselling, planning, and surgical procedures are necessary for more promising results.
MHD Stagnation Point Flow of Micropolar Fluid over a Stretching/ Shrinking Sheet
Authors: Dachapally Swapna  , Gurala Thirupathi  , Kamatam Govardhan  , Ganji Narender  , Santoshi Misra  , S. Renuka
Published: July 2024

In this article, the stagnation point flow of a micropolar fluid on a stretching/shrinking sheet has been discussed subject to the assumption of velocity slip. Similarity transformation is used to transform the modelled Partial Differential Equations (PDEs) into a system of Ordinary Differential Equations (ODEs). The numerical results have been found by the shooting technique along with Adams Moulton method of order four. The obtained numerical results are compared with the help of Fortran Language program and compared with the earlier published results and excellent validation of the present numerical results has been achieved for the local Nusselt number. Finally, the numerical results are presented with discussion of the effects of different physical parameters.
Occupancy Comfort Evaluation in Green Building Rating Tools in Malaysia: A Comparative Review
Authors: Mohd Zulkifli Ibrahim  , Mohd Faizal Mohideen Batcha
Published: July 2024

Passive design strategy is the approach that maximizing utilization of natural resources to achieve occupancy comfort which covers the thermal comfort, visual comfort and acoustic comfort while minimizing secondary energy usage. Adapting passive design strategy during building design-stage is beneficial in reducing energy load of the building for long term, furthermore to reduce the energy consumption in day to day building operation. Applying Green Building Rating Tools, GBRT promotes passive design strategy for non-residential building and will assist the building designer to comply with the local and international standard. The minimum requirement of occupancy comfort is captured in GBRT rating system with different approach and intension of the system. This review summarize the coverage of passive design strategy sectors for non-residential building in Malaysia by comparing three GBRT system namely Green Building Index, GBI NCNR, MyCREST ICSAS and GreenRE NRB system. GreenRE NRB seems more aggressive in occupancy comfort evaluation compared to GBI NCNR and MyCREST ICSAS. GreenRE allocates 48.7% of total marks focus on occupancy comfort aspect while GBI and MyCREST allocates 14% and 13.2% respectively from the total score. MyCrest had enforce the mandatory compliance of OTTV, RTTV and Uroof to meet baseline requirement as per MS1525:2019 with zero marks allocation. Based on marks percentage allocation, GBI and MyCrest prioritizing visual comfort while GreenRE give more focus on thermal comfort with higher marks allocation. All rating system give less focus on acoustic comfort. On average, 16.3% of marks covers the thermal comfort, 9% covers visual comfort and 1% cover acoustic comfort. GBI and MyCrest focus more on green building materials which covers the building lifecycle includes water management and waste disposal. All system contributes to Malaysia-UNFCCC ratification of Paris Agreement on 45% GHG reduction in longer runs.
Li-NMC Temperature Modelling Based on Realistic Internal Resistance
Authors: Muhammad Fikri Irsyad Mat Razi  , Zul Hilmi Che Daud  , Zainab Asus  , Izhari Izmi Mazali  , Anuar Abu Bakar  , Mohd Kameil Abdul Hamid
Published: July 2024

Lithium-ion battery (LIB) produce heat when it is put under charging and discharging process. The heat generated during charging and discharging are directly related to the internal in the battery. This heat generation will cause the battery temperature to rise. The operating temperature for LIB is significantly important because its affect the performance and health of the battery. Gathering battery thermal behavior through experiment is a time consuming, high cost and a fussy process. The process can be made easier through battery thermal modelling. The purpose of this study is to provide a thermal battery model that can predict the battery thermal behavior at wide range of temperature by using realistic internal resistance value from experiment. In this study, a Nickel-Manganese-Cobalt Lithium-ion battery with capacity 40 Ah was discharged with 120 A (3C) and 160 A (4C) current continuously to heat up the battery until a set of targeted temperature achieved. The battery is then discharged with 40 A (1C) pulse current, and the voltage response is measured. The process was repeated until 80°C. From the voltage response data, the internal resistance for the battery was calculated and used as the main input in the thermal model based on heat generation equation to predict the battery temperature. The result shows that the developed thermal model managed to precisely predict battery thermal behaviour with a low average relative error of around 0.634 % to 5.244%. The significance of this study is to provide a battery model that can predict battery thermal behavior precisely at wide range of temperature. This information is important in designing a better battery management system (BMS) to prolong the battery lifetime, slowing degradation rate and avoid safety risk.
Effect of Different Shapes of Nanoparticles on Mixed Convective Nanofluid Flow in a Darcy-Forchhiemer Porous Medium
Authors: Annapurna T  , K.S.R. Sridhar  , M Karuna Prasad
Published: July 2024

The nanofluid has diverse applications in industries, engineering, and medicine due to its greater thermal characteristics. However, various factors such as the shape and size of nanoparticles, the base fluid, the porous medium, the quadratic drag force, and the viscous dissipation have significant effects on the flow and heat transfer characteristics of nanofluids. Therefore, it is crucial to study the influence of these factors. In this paper, a theoretical investigation is conducted to analyze the mechanisms of thermal conductivities of different shapes of nanoparticles, such as platelet, cylinder, brick and blade on the mixed convective nanofluid flow in a vertical channel saturated with porous medium. Consider ethylene glycol and water as base fluids for the nanoparticles, including copper, aluminum oxide, titanium oxide, silver, and iron oxide. A thin, movable baffle plate of negligible thickness is inserted in the channel and made into double passages. To define the porous matrix, the Darcy-Brinkaman-Forchhiemer model is used, and to define the nanofluid, the Tiwari and Das model is used. Robin boundary conditions are considered for the channel flow. The differential transform method (DTM) is applied to solve non-linear governing equations with inertia, and the perturbation method is applied to solve the problem without inertia. Velocity and temperature cantors are shown graphically using MATLAB and MATHEMATICA. The obtained values by DTM and the perturbation method are well validated and shown graphically. The Nusselt number was evaluated and tabulated for all governing parameters. The objective of this article is to investigate the effect of nonspherical shapes of nanoparticles, the base fluid, the inertial forces of the porous medium, and the buoyancy force on the thermal characteristics of flow and heat transfer of nanofluids. The main findings of this problem are that the optimum velocity and temperature cantor are found for platelet-shaped water-based silver nanofluid.
Unsteady MHD Walter’s-B Viscoelastic Flow Past a Vertical Porous Plate
Authors: Veera Reddy Karnati  , Sandhaya Akuri  , O.Ramakrishna  , M. Gayatri  , Srinivasa Rao Tagallamudi  , Venkata Ramana Reddy Gurrampati
Published: July 2024

The present paper intended to analyse an unsteady MHD Walter’s-B viscoelastic flow past a vertical porous plate embedded in a porous medium in the presence of the radiation and chemical reaction effects. The dimensionless partial differential equations of governing equations of the flow field are solved numerically using closed analytical method. The velocity, temperature and concentration profiles are discussed graphically and discussed qualitatively
Texto para Discussão 2950
Authors: Leão Rafael , Rabelo Rodrigo
Published: July 2024

A extensão da cadeia produtiva da economia mineral é assunto de relevância para o debate brasileiro sobre políticas públicas de crescimento econômico, mas os números e as definições acerca do tema ainda são imprecisos e, portanto, continuam em construção. Em um primeiro momento, apresenta-se uma discussão metodológica a partir das nomenclaturas oficiais de atividades econômicas, de maneira a estabelecer criteriosamente os limites setoriais da economia mineral, passando pelos conceitos de extração mineral e transformação mineral. Em seguida, é feita a sugestão de uma técnica quantitativa para aferir precisamente a extensão econômica dessa cadeia produtiva sob o enfoque do valor adicionado no produto interno bruto (PIB) brasileiro, e seus impactos ao longo da economia. Finalmente, o trabalho conflui para a apresentação das estimativas realizadas à luz do contexto econômico do Brasil ao longo dos últimos vinte anos.
Texto para Discussão 2955
Authors: Mendonça Mário Jorge Cardoso de , Pessanha José Francisco Moreira , Medrano Luiz Alberto Toscano , Almeida Victor Andrade de , Pereira Junior Amaro Olímpio , Nogueira Érica Carvalho
Published: July 2024

A geração eólica é fundamental para redução do uso de recursos fósseis e, consequentemente, da emissão de gases de efeito estufa (GEEs). Atualmente, o Sistema Interligado Nacional (SIN) conta com cerca de 9.971 aerogeradores em operação, a sexta maior rede no ranking mundial, sendo que no Nordeste estão localizados 80% dos parques eólicos brasileiros. No entanto, devido à intermitência da geração eólica, a entrada em larga escala da fonte eólica no planejamento de sistemas hidrotérmicos implica desafios para sua integração ao sistema. Por esse motivo, há a necessidade do tratamento da incerteza da velocidade do vento na cadeia de modelos computacionais que suportam as decisões operativas. Assim, visando contribuir com a modelagem da incerteza eólica no planejamento da operação (médio prazo), este trabalho propõe uma metodologia que consiste na aplicação do modelo fatorial dinâmico (MFD) para a geração de séries sintéticas das médias mensais da velocidade do vento nas localidades com aproveitamentos eólicos. A metodologia proposta foi aplicada em um conjunto de séries de reanálises da velocidade do vento oriundas do MERRA-2. Os resultados obtidos para os oito parques eólicos do SIN analisados mostram que a metodologia é promissora, dada a boa qualidade das previsões mensais da média mensal da velocidade do vento até dois anos à frente e, sobretudo, a boa representatividade das séries sintéticas geradas pelo modelo.
“Tan's Dent-Card Qr Model Website Based” as an Effort to Improve Teeth Brushing Behavior and Dental Hygiene Status Primary School Children
Authors: Indri Ardiyanti Intan , . Supriyana , Eko Ningtyas Endah Aryati , Suwondo Ari , Daniati Nia
Published: July 2024

Background: Children aged 10-12 years have a very high rate of tooth decay at 57.6% with a mean (DMF-T) of 4.8. This is caused by one of the influencing factors, namely the low level of behavior in maintaining dental hygiene, as evidenced by the results of the 2019 Semarang City health data, that 86.7% of elementary school children do not have good tooth brushing behavior. The achievement of the new joint tooth brushing program is 47.8%, so innovation is needed in changing tooth brushing behavior, namely through the "Tan's Dent-Card QR Website Based Model" which is expected to improve tooth brushing behavior and the dental hygiene status of elementary school children. Research purposes:Producing a "Website Based Tan's Dent-Card QR Model" that is effective and feasible to implement to improve tooth brushing behavior and the dental hygiene status of elementary school children. Method : The method used in this research is Research and Development (R&D) with 5 research stages, namely needs identification, design and build, expert validation, feasibility test 1, and feasibility test 2. This research uses a pre-experimental design with a one- group pre-post- test. The sampling technique was purposive sampling consisting of 30 elementary school children aged 10-12 years who were given intervention for 14 days. Results: The validity results of the "Tan's Dent-Card QR Website-Based Model" show a value of p=0.000, which means this model is suitable for use to improve the behavior and dental hygiene status of elementary school children. “Tan's Dent-Card QR Website-Based Model” was also effective in enhancing tooth brushing behavior and dental hygiene status (p=0.000). In feasibility test 2, the result was p=0.000, which means the model is suitable for independent use by elementary school children aged 10-12 years. Conclusion: "Tan's Dent- Card QR Website-Based Model" is effective and ideal for use as an effort to improve tooth brushing behavior and the dental hygiene status of elementary school children.
Optimization of Raw Material Inventory using Always Better Control (ABC) Analysis and Economic Order Quantity (EOQ) Method Approach in the Warehouse of a Bolt Manufacturing Factory in Indonesia
Authors: Khusnul Irfani Amalia , . Supriyanto , Hapsak Pradipto Gigih
Published: July 2024

There is a problem in the raw material procurement process at the Contractor Company, such as running out and excess stock of raw materials, as well as difficulties in determining how many raw materials to order that meet the company's economic value. Running out of raw material stock results in delays in production activities, while excess raw material stock can fill warehouse capacity, thereby increasing storage costs. To overcome this problem, research was carried out using a quantitative descriptive method to determine the level of production cost efficiency and production effectiveness level in order to achieve optimization of raw material supplies using Always Better Control (ABC) Analysis and the Economic Order Quantity (EOQ) Method at Bolt Companies. ABC analysis plays a role in determining which raw materials have the highest level of demand and the EOQ method plays a role in determining the amount of raw materials to be ordered in order to meet the company's economic value. The research results show that the combination of ABC Analysis and EOQ Method can reduce ordering costs and raw material inventory. There are 4 items out of 10 raw material items that are included in Category A or the most prioritized category. From the results of calculations using the EOQ method, the Bolt Company can save total orders and raw material inventory (TIC) in the period January to December 2023 amounting to IDR 2,147,403,-.
Chitosan based Nanocomposites: Its Synthesis, Characterization and Applications in Various Fields: A Review
Authors: D.Patil Manisha
Published: July 2024

Nanocomposites: modern material are multiphase martial composed of one or many phases of less than 100 nm dimensions. Polymer –matrix nanocomposites are composed of polymer matrix reinforced with nanoscale fillers. Chitosan is the most abundant biopolymer after cellulose, extracted from chitin present in insect exoskeleton fungal cell wall, and crustaceans. Chitosan gains the attention of many researcher because of its unique properties like biodegradable, plant growth regulator, biocompatible, antimicrobial agent and nontoxic. Chitosan nanocomposites combine the benefits of chitosan with enhanced properties provided by nanoparticles making them versatile and high performing material. Chitosan nanocomposites has numerous application in industries, biomedical, food packaging, and environmental remediation. This review focuses on the Chitosan nanocomposites synthesis, their characterization and applications in various fields.
Bukkanók és kitérők a pénzmosás szabályozásának hazai útján
Authors: Tóth Mihály
Published: July 2024

Aim: The aim of the paper is a brief review of the past 30 years of domestic legislation concerning the criminal act of money laundering, also to summarise the lessons learned from the modifications and to outline some aspects of legal-interpretation.
Methodology: The paper analyses the periodical changes of the phrasing of the act and the legal policy intentions in connection with these changes. It takes a position on the academic debates concerning the application of the offence and critically assesses legal practice.
Findings: The current legislation and practice of money laundering is still not without inconsistencies. Qualification of specific acts as money laundering could often contradict fundamental legal principles, the proper interpretation of actual or pseudo multiple-offence theory, the concurring aspects of aiding and abetting versus subsidiary or collateral offences, and the necessity to justify culpability or mens rea. While not disputing the legitimate purpose of the offence, nevertheless with an expectation of a more critical attitude regarding its application, effective investigation of the preliminary offences shall not be de-emphasised, as its effectiveness is still the most effective way to the prevention of money laundering.
Value: The conclusions may contribute to a better founded jurisprudence concerning money laundering, as well as it may provide guidance for future codification considerations.
Preambulum az idegenjogi szakigazgatás rendszerében
Authors: Hutzinger Zoltán
Published: July 2024

Aim: The aim of this paper is to present - in addition to the preambles of the legislation on alien policy from 1903 to the present day - the preamble of Act XC of 2023 on the General Rules for the Entry and Residence of Third-Country Nationals.
Methodology: This study considers the practice of the specifications of the preambles of the legislations on the entry and residence of foreigners, and compares, according to grammatical and logical criteria, the certain sentences of the introductory text of Act XC of 2023 on the General Rules for the Entry and Residence of Third-Country Nationals with the normative provisions of this Act and other legislations, in particular the Fundamental Law of Hungary.
Findings: The preamble of Act XC of 2023 on the General Rules for the Entry and Residence of Third-Country Nationals introduces the normative provisions of the Act with an unusual content compared to the legislation so far. This content cannot, however, be examined in isolation, but only in the light of the specific legal provisions (constitutional, statutory, regulatory) establishing rights and obligations.
Value: The value of the study is to draw attention to the fact that in the system of legislation, only the specific provisions of individual pieces of legislation have normative force, and that the texts and preambles introducing individual pieces of legislation can contribute to the interpretation of these legislative provisions.
A szexuális bűncselekmények nemzetközi és hazai bűnügyi statisztikai mutatói
Authors: Erdélyi Ákos
Published: July 2024

Aim: In this study, the Author reviews the criminal statistics indicators of sexual crimes. Sexual crimes can be grouped according to several classification systems – for example, the age of the victims, or the method of execution, or in light of whether they are committed with violence. Based on the latter, distinguished between violent and non-violent situations – a good example of the former is the crime of sexual violence, while the latter is child pornography. The analysis of the statistical data provides insight into how and to what extent the prevalence of sexual crime develops, as well as how and with what prevention campaigns these frequency indicators can be reduced.
Methodology: In the study, the Author makes a statistical presentation, the sources of which are international and domestic crime statistics databases.
Findings: Although the number of proceedings initiated for sexual crimes in Hungary can be considered average for the Central and Eastern European region, the numbers of cases detected are still at high levels. In order for these cases to decrease, programs are needed that effectively combat the effects of sexual violence myths, the fear of victim blaming, and stigmatisation.
Value: This study is an overview that aims to present a complex statistical point of sexual crimes, which can serve as a basis for further comparative analyses.
Transducciones sinestésicas en tecnopoéticas latinoamericanas: información, traducción y sensorium
Authors: RÉ ANAHÍ ALEJANDRA , BULA HERNÁN E.
Published: July 2024

En este artículo identificamos y describimos un procedimiento que pareciera no haber sido percibido aún por la crítica: la transducción sinestésica. Para contextualizar nuestra propuesta, primero revisamos algunos usos del concepto de transducción en estudios sobre arte transductivo, con el objetivo de precisar y sistematizar distintas acepciones. Luego, distinguimos procesos de traducción y de transducción en función del tipo de información predominante en ellos, para posteriormente profundizar en los procedimientos de transducción que tienen lugar en un corpus de tecnopoéticas latinoamericanas producidas en la última década según su forma de interpelar el sensorium, específicamente en lo que excede al sensorium visual y sonoro (sobreexplotado en nuestras sociedades contemporáneas). Estas prácticas demandan, al espectador, cierta disponibilidad para la sensibilidad háptica o táctil, lo cual requiere, asimismo, la inmediatez de su cuerpo como condición de posibilidad para la experiencia. Esta demanda es profundamente política.
Máquina Cóndor
, de Demian Schopf, y los proyectos IA de Sofía Crespo: la imaginación artificial y el desafío noopolítico
Authors: BONGERS WOLFGANG
Published: July 2024

La era de la Inteligencia Artificial (IA) está marcando un nuevo hito en la historia de la producción de saberes, escrituras y lecturas, y de la creación de objetos de arte analógicos y digitales. Los sistemas generativos de textos e imágenes en base a procesos algorítmicos, de aprendizaje profundo y de modelos de lenguaje de gran tamaño (LLM), provocan inquietudes acerca de las nuevas formas de convivencia y comunicación entre seres humanos y máquinas en un momento álgido del Tecnoceno (Flavia Costa) que insta a repensar las estrategias de sobrevivencia sobre la Tierra. Las operaciones algorítmicas y la IA son un nuevo
pharmakon
(Bernard Stiegler) con sus efectos tóxicos (entrópicos) y terapéuticos (neguentrópicos) en el contexto de la ecología cognitiva planetaria (Katherine Hayles, Yuk Hui, James Bridle). El trabajo, después de introducir algunos aspectos clave de la cultura algorítmica en la era IA, se dedica a analizar dos proyectos artísticos, la
Máquina Cóndor
de Demian Schopf, y los trabajos con IA de Sofía Crespo. Los dos se plantean, bajo parámetros diferentes, el desafío noopolítico actual desde la imaginación artificial.
IOP4, the Interactive Optical Photo-Polarimetric Python Pipeline
Authors: Escudero Pedrosa Juan , Agudo Iván , Morcuende Daniel , Otero-Santos Jorge , Bonnoli Giacomo , Piirola Vilppu , Husillos César , Bernardos Mabel , López-Coto Rubén , Sota Alfredo , Casanova Victor , Aceituno Fran J. , Santos-Sanz Pablo
Published: July 2024

IOP4 is a pipeline to perform photometry and polarimetry analysis of optical data from Calar Alto (CAHA) and Sierra Nevada (OSN) observatories. IOP4 implements Object Relational Mapping to seamlessly integrate all information about the reduction and results in a database that can be used to query and plot results, flag data, and inspect the reduction process in an integrated fashion with the whole pipeline. It also ships with an already built-in web interface that can be used out of the box to browse the database and supervise all pipeline processes. It is built to ease debugging and inspection of data. Reduction from five different instruments are already implemented: RoperT90, AndorT90, DIPOL (at OSN 0.9 m telescope), AndorT150 (OSN 1.5 m telescope), and CAFOS (CAHA 2.2 m telescope). IOP4's modular design allows for easy integration of new observatories and instruments, and its results have already featured in several high-impact refereed publications. In this paper we describe the implementation and characteristics of IOP4.
SN 2019tua: A Type IIb Supernova with Multiple Bumps in the Light Curves
Authors: Huang Xin-Bo , Wang Xiang-Gao , Li Long , Xin Li-Ping , Wang Jing , Zheng Tian-Ci , Wang Qi , Liu Hui-Ya , Zhou Zi-Min , Lu Xiao-Meng , Wei Jian-Yan , Liang En-Wei
Published: July 2024

We present photometric and spectroscopic observations and analysis of the Type IIb supernova (SN) SN 2019tua, which exhibits multiple bumps in its declining light curves between 40 and 65 days after discovery. SN 2019tua shows a time to peak of about 25 days, similar to other Type IIb SNe. Our observations indicate a decrease in its brightness of about 1 mag in the 60 days after the peak. At about days 50 and 60, its multiband light curves exhibit bumpy behavior. The complex luminosity evolution of SN 2019tua could not be well modeled with a single currently popular energy source model, e.g., radioactive decay of 56Ni, magnetar, interaction between the ejecta and a circumstellar shell. Even though the magnetar model has a smaller χ
2/dof value, the complex changes in SN 2019tua’s brightness suggest that more than one physical process might be involved. We propose a hybrid circumstellar medium (CSM) interaction plus 56Ni model to explain the bolometric light curve of SN 2019tua. The fitting results show that the ejecta mass M
ej ≈ 2.4 M
⊙, the total CSM mass M
CSM ≈ 1.0 M
⊙, and the 56Ni mass M
Ni ≈ 0.4 M
⊙. The total kinetic energy of the ejecta is E

k
≈ 0.5 × 1051 erg. Preexisting multiple shells suggest that the progenitor of SN 2019tua experienced mass ejections within approximately ∼6–44 yr prior to the explosion.
Constraining the Clustering and 21 cm Signature of Radio Galaxies at Cosmic Dawn
Authors: Sikder Sudipta , Barkana Rennan , Fialkov Anastasia
Published: July 2024

The efficiency of radio emission is an important unknown parameter of early galaxies at cosmic dawn, as models with high efficiency have been shown to modify the cosmological 21 cm signal substantially, deepening the absorption trough and boosting the 21 cm power spectrum. Such models have been previously directly constrained by the overall extragalactic radio background, as observed by Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission 2 and Long Wavelength Array. In this work, we constrain the clustering of high-redshift radio sources by utilizing the observed upper limits on arcminute-scale anisotropy from the Very Large Array at 4.9 GHz and Australia Telescope Compact Array at 8.7 GHz. Using a seminumerical simulation of a plausible astrophysical model for illustration, we show that the clustering constraints on the radio efficiency are much stronger than those from the overall background intensity by a factor that varies between 18 and 55 in the redshift range of 7–22. As a result, the predicted maximum depth of the global 21 cm signal is lowered by a factor of 6 (to 1400 mK), and the maximum 21 cm power spectrum peak at cosmic dawn is lowered by a factor of 45 (to 1.3 × 105 mK2). We conclude that the observed clustering is the strongest current direct constraint on such models, but strong early radio emission from galaxies remains viable for producing a strongly enhanced 21 cm signal from cosmic dawn.
The Discovery and Evolution of a Possible New Epoch of Cometary Activity by the Centaur (2060) Chiron
Authors: Dobson Matthew M. , Schwamb Megan E. , Fitzsimmons Alan , Schambeau Charles , Beck Aren , Denneau Larry , Erasmus Nicolas , Heinze A. N. , Shingles Luke J. , Siverd Robert J. , Smith Ken W. , Tonry John L. , Weiland Henry , Young David. R. , Kelley Michael S. P. , Lister Tim , Bernardinelli Pedro H. , Ferrais Marin , Jehin Emmanuel , Fedorets Grigori , Benecchi Susan D. , Verbiscer Anne J. , Murtagh Joseph , Duffard René , Gomez Edward , Chatelain Joey , Greenstreet Sarah
Published: July 2024

Centaurs are small solar system objects on chaotic orbits in the giant planet region, forming an evolutionary continuum with the Kuiper Belt objects and Jupiter-family comets. Some Centaurs are known to exhibit cometary activity, though unlike comets, this activity tends not to correlate with heliocentric distance, and the mechanism behind it is currently poorly understood. We utilize serendipitous observations from the Asteroid Terrestrial-impact Last Alert System, Zwicky Transient Facility, Panoramic Survey Telescope and Rapid Response System, Dark Energy Survey, and Gaia in addition to targeted follow-up observations from the Las Cumbres Observatory, TRAnsiting Planets and PlanetesImals Small Telescope South (TRAPPIST-South), and Gemini North telescope to analyze an unexpected brightening exhibited by the known active Centaur (2060) Chiron in 2021. This is highly indicative of a cometary outburst. As of 2023 February, Chiron had still not returned to its prebrightening magnitude. We find Chiron's rotational lightcurve, phase curve effects, and possible high-albedo surface features to be unlikely causes of this observed brightening. We consider the most likely cause to be an epoch of either new or increased cometary activity, though we cannot rule out a possible contribution from Chiron's reported ring system, such as a collision of as-yet-unseen satellites shepherding the rings. We find no evidence for a coma in our Gemini or TRAPPIST-South observations, though this does not preclude the possibility that Chiron is exhibiting a coma that is too faint for observation or constrained to the immediate vicinity of the nucleus.
Review of the Scientific Literature on the Topic of Online Dating Services in a Demographic and Social Context
Authors: Klimenko German A.
Published: July 2024

The use of online dating services has surged dramatically in recent years. Concurrently, a substantial body of scientific literature has emerged, analyzing these services from demographic and social perspectives. This review, based on 528 English-language publications from the past 13 years, compiles a bibliographic database and employs content analysis to systematize research directions on the use of online dating services. The classification includes topics such as locations and methods of dating (both traditional and digital), the risks and drawbacks of digital dating services, user actions and interactions, dating goals, marital status, and more. This bibliographic database has helped identify the primary vectors of publication activity on the topic of online dating services over the past 13 years.
Vers l’intégration d’un nouveau régime en analyse du discours, le format. Le cas du rapport de laboratoire à l’université de Nanterre (1970-2018)
Authors: Lehmann Sabine , Lethier Virginie , Née Émilie
Published: July 2024

Cet article part de l’hypothèse que le format, tout en participant au processus de codification du genre du rapport de laboratoire en diachronie comme en synchronie, est un régime par et à travers lequel se joue la refonte des pratiques discursives des institutions conformément aux normes managériales et néolibérales. Dès lors, l’article répond à un double objectif. D’un point de vue heuristique, il s’agit de voir ce qu’une prise en compte du format nous apprend sur le genre de discours rapport de laboratoire, sur une synchronie longue (1970-auj.) ou courte (2018). D’un point de vue méthodologique, il s’agit d’intégrer des observables jusqu’ici délaissés par l’analyse du discours, en empruntant aux outils descriptifs de la linguistique de l’écrit.
Le tweet, un format contraint, face à la créativité des utilisateurs
Authors: Aubanelle Claire
Published: July 2024

Les possibilités discursives offertes sur les réseaux sociaux en ligne sont organisées de manière conventionnelle. Les fonctionnalités courantes peuvent être stylisées parce que leur signification se reconnaît à partir d’usages acquis, et que l’organisation des formes et symboles est stabilisée. C’est le cas sur Twitter : le format du tweet est contraint, et les pratiques discursives sont orientées vers des productions standardisées. Cependant les formats existants laissent une certaine place à la créativité des utilisateurs pour « sortir du cadre ». Ainsi, à partir d’extraits d’un corpus de tweets politiques, nous proposons d’analyser l’utilisation des différents éléments qui composent le format du tweet, et la façon dont les possibilités technologiques sont exploitées par les internautes pour déborder le format standard.
Tendances et Prospective , une démarche de prospective touristique en Grand Est au service des stratégies collectives et individuelles de long terme
Authors: Portet Séverine
Published: July 2024

La montée d’incertitudes majeures provoquées par la crise sanitaire sur fond de bousculements climatiques impose au monde du tourisme de s’interroger sur son avenir, alors que les flux touristiques dépassent les scores d’avant crise. Une veille stratégique s’impose à nos territoires afin d’atteindre un tourisme souhaitable, tenable compte-tenu des perspectives de changements climatiques. Pourra-t-on encore faire tourisme demain ? Dans ce contexte, l’Agence Régionale du Tourisme du Grand Est, dans le cadre de sa démarche Tendances & Prospective ambitionne de décrypter les tendances, les signaux faibles et les ruptures possibles et d’ouvrir les champs des possibles aux professionnels du tourisme du territoire, avec une finalité de prospective stratégique. Il s’agit d’explorer des futurs possibles en utilisant différentes méthodes de prospective, pour trouver des voies d’actions immédiates, pour anticiper et agir sur l’avenir, en apportant un regard multi-angles afin de répondre à toutes les attentes, selon la diversité des professionnels, qui sont au centre du dispositif. Cet article décrypte les outils et méthodes mis en œuvre à l’Agence Régionale du Tourisme Grand Est. Classification JEL : R11, R58, Z18, Z32
Être une femme et jouer à l’Olympique Lyonnais : essai d’histoire d’un club atypique
Authors: Bodin Théo , Rivrais Cassandre , Ottogalli-Mazzacavallo Cécile
Published: July 2024

Si les footballeuses de l’Olympique Lyonnais disposent d’un palmarès sportif inégalé (16 fois championnes de France, 9 fois vainqueures de la Coupe de France et 8 fois de la Ligue des championnes de l’UEFA), elles restent cependant dans l’ombre des hommes, notamment au niveau de la production littéraire et scientifique. Inspirée des apports de la micro-histoire, de l’approche biographique et des études de genre, l’article investit une « face cachée » de l’Olympique Lyonnais via les récits de vie de sept joueuses du club entre 2000 et 2019 et l’analyse du journal local Le Progrès et du journal sportif national L’Équipe entre 2004 à 2010. Revenant sur les conditions de l’intégration des femmes à l’OL en 2004 et de leur progression sportive vers l’excellence, l’article montre comment l’amélioration des conditions matérielles de pratique, grâce à l’engagement d’un président allié, alimente tant sur la production de performances sportives que la reconnaissance des athlètes. Ce cercle vertueux reste pourtant, d’une part, relativement exceptionnelle dans le monde du football des femmes en France et, d’autre part, limité car bien que dominantes dans l’espace du football des femmes, elles n’en restent pas moins dominées dans l’espace du football professionnel. Ainsi, leurs récits témoignent de ce statut paradoxal, à être privilégiées dans l’espace des femmes et, dans le même temps, dominées dans l’espace footballistique global. Les joueuses incorporent elles-mêmes cet ordre de genre lorsqu’elles analysent leurs trajectoires en termes de don plus que de mérite, en termes de chances plus que de droits.
Le football international des femmes est-il moins équilibré et intense que celui des hommes ?
Authors: Scelles Nicolas
Published: July 2024

Cette recherche teste si le football international des hommes bénéficie d’un meilleur équilibre compétitif intra-match que celui des femmes sur la base de son évolution dans les Coupes du Monde de la Fédération Internationale de Football Association (FIFA) depuis 1990. L’indicateur correspond au pourcentage de temps de jeu avec une différence d’un but au plus entre équipes. Les fluctuations sont également prises en compte, calculées comme le nombre moyen de changements de match nul à non nul / non nul à nul. Les résultats montrent que les Coupes du Monde des femmes ont toujours été moins équilibrées que celles des hommes sur la période étudiée. Toutefois, elles ont considérablement réduit le fossé au cours du temps. De plus, quand le focus est sur les situations où le prochain but peut impacter la qualification des équipes (intensité compétitive) plutôt qu’une différence d’un but au plus (non pertinente quand par exemple les deux équipes sont déjà éliminées), le pourcentage de temps de jeu était égal à 80,8 % pour les femmes en 2015 vs 79,6 % pour les hommes en 2014, avec des fluctuations quasi similaires. Ces résultats sont cohérents avec le développement international du football des femmes durant les trois dernières décennies.
The Spectrum of Isolated Retinal Artery Occlusion Secondary to Giant Cell Arteritis
Authors: Han Ji Yun , Gillette Julia S. , Scott Ingrid U. , Greenberg Paul B.
Published: July 2024

We systematically reviewed the literature to investigate the clinical features of isolated arteritic retinal artery occlusion (A-RAO) associated with giant cell arteritis (GCA). The four primary types of A-RAO were central retinal artery occlusion (CRAO), hemi-central retinal artery occlusion (hCRAO), branch retinal artery occlusion (BRAO), and cilioretinal artery occlusion (CLRAO). The most reported presentation was unilateral CRAO, followed by bilateral CRAO, unilateral CLRAO, and bilateral BRAO. Most RAOs were accompanied by typical GCA signs and symptoms, which can help distinguish them from non-arteritic RAOs. When reported, temporal artery biopsy confirmed GCA in most cases. Patients with GCA may present with a broad spectrum of isolated unilateral and bilateral A-RAOs.

[
Ophthalmic Surg Lasers Imaging Retina
2024;55:536–540.]
Fractal Changes of the Retinal Microvasculature in Birdshot Chorioretinopathy
Authors: Rickels Kaersti L. , Ji Marco , Shakarchi Ahmed , Georgiou Michalis , Uwaydat Sami H. , Sallam Ahmed B.
Published: July 2024

Background and Objective

Retinal vascular disorders are associated with lower fractal dimension (FD). We analyzed FD in birdshot chorioretinopathy (BSCR).

Patients and Methods

This was a retrospective cohort study. We performed optical coherence tomography angiography (OCTA) and analyzed FD of the superficial capillary plexus (SCP), deep capillary plexus (DCP), and choriocapillaris (CC) using ImageJ. For each vascular layer, we analyzed the presence of BSCR, subjects' age, sex, and presence of diabetes mellitus to determine which may predict lower FD.

Results

We compared 28 eyes (14 patients) with BSCR to 34 control eyes (17 patients). Mean FD of BSCR was lower in SCP (1.584 [± 0.126] vs 1.706 [± 0.118],
P
< 0.001), DCP (1.637 [± 0.134] vs 1.780 [± 0.096],
P
< 0.001), and CC (1.884 [± 0.063] vs 1.917 [± 0.047],
P
= 0.036). FD of SCP was lower per increasing year (0.005 [
P
= 0.014]). Male patients had lower FD-DCP (0.101 [
P
= 0.043]).

Conclusion

In BSCR, fractal analysis showed significant involvement of the SCP, DCP, and to a lesser extent the CC.

[
Ophthalmic Surg Lasers Imaging Retina
2024;55:646–651.]
A study of $ * $-Ricci–Yamabe solitons on $ LP $-Kenmotsu manifolds
Authors: Haseeb Abdul , Mofarreh Fatemah , Chaubey Sudhakar Kumar , Prasad Rajendra
Published: July 2024

In this study, we characterize $ LP $-Kenmotsu manifolds admitting $ * $-Ricci–Yamabe solitons ($ * $-RYSs) and gradient $ * $-Ricci–Yamabe solitons (gradient $ * $-RYSs). It is shown that an $ LP $-Kenmotsu manifold of dimension $ n $ admitting a $ * $-Ricci–Yamabe soliton obeys Poisson's equation. We also determine the necessary and sufficient conditions under which the Laplace equation is satisfied by $ LP $-Kenmotsu manifolds. Finally, by using a non-trivial example of an $ LP $-Kenmotsu manifold, we verify some results of our paper.
The influence of damping on the asymptotic behavior of solution for laminated beam
Authors: Moumen Abdelkader , Yazid Fares , Djeradi Fatima Siham , Imsatfia Moheddine , Mahrouz Tayeb , Bouhali Keltoum
Published: July 2024

This paper dealt with a laminated beam system along with structural damping, past history, distributed delay, and in the presence of both temperatures and micro-temperatures effects. The damping terms left the system dissipative. Employing the semigroup approach, we established the existence and uniqueness of the solution. Additionally, with the help of convenient assumptions on the kernel, we demonstrated a general decay result for the solution of the considered system, with no constraints regarding the speeds of wave propagation. The main aim was to address how specific behaviors of the system were related to memory and delays. We aimed to investigate the joint impact of an infinite memory, distributed delay and micro-temperature effects on the system. We found a new relationship between the decay rate of solution and the growth of g at infinity. The objective was to find studies that use no- trivial results and their applications to relevant problems from mathematical physics.
Repenser la « troisième voie » portugaise : dictature et modèles corporatifs dans l’après-guerre (1945-1956)
Authors: Serapiglia Daniele
Published: July 2024

Peut-on parler d’une voie corporatiste après la fin de la Seconde Guerre mondiale ? La fin de l’ère du fascisme a-t-elle également marqué la disparition de l’idée d’une troisième voie entre le capitalisme et le communisme ? Après 1945, quelle a été la parabole du corporatisme catholique ? Pour répondre à ces questions, cet article se penche sur la péninsule Ibérique. Si la fin de la Seconde Guerre mondiale n’a pas mis un terme aux expériences dictatoriales de Salazar et de Franco, elle a permis de repenser la doctrine corporatiste, pierre angulaire des politiques sociales des deux régimes au cours des années précédentes. Dans les années qui ont suivi la guerre, les deux dictatures ont tenté de démontrer que, dès le départ, elles avaient préconisé une troisième voie qui n’avait que peu à voir avec la doctrine corporatiste italienne. Cependant, la Carta del Lavoro fasciste de 1927 a influencé la rédaction de l’Estatuto do Trabalho nacional de 1933 et du Fuero del Trabajo de 1940. À travers l’étude du débat sur les relations entre l’État, le monde du travail et le monde de l’entreprise, cet article vise à comprendre : quelle part de l’expérience fasciste est restée implicite et quelle part a été explicite ; mais aussi comment l’expérience corporative dans les deux pays s’est modifiée en raison de l’affirmation de la théorie nationale-catholique face à la théorie fasciste. Pour cette raison, les années prises en considération sont celles qui vont de 1945 à 1953, lorsque le débat s’est développé dans les milieux catholiques sur la possibilité d’affirmer un nouveau modèle corporatiste pour remplacer le modèle fasciste.
Le gouvernement par les chiffres : exemple de la gestion comptable du chantier de Salses, 1497-1503
Authors: Victor Sandrine
Published: July 2024

Le chantier de la forteresse de Salses, mené entre 1497 et 1503, est un dossier qui permet de faire dialoguer histoire et données statistiques. En particulier, cet exemple permet de revenir sur la notion d’État ingénieur de Desrosières et de mettre l’accent, pour ces temps anciens, sur l’optimisation économique, le rendement et l’exploitation efficace des ressources humaines et matérielles par le chiffre. L’étude met en évidence l’importance des compétences administratives, des outils de gestion et des transferts de connaissances dans ce contexte médiéval. L’administration chargée de la construction de Salses montre une préoccupation pour les chiffres et les statistiques. Les Rois Catholiques demandaient des comptabilités précises pour suivre l’exécution de leur plan, considérant les données chiffrées comme des preuves et des outils de gouvernement. Le chantier montre également la professionnalisation croissante des agents d’État au service de ce projet. Une organisation humaine de plus en plus élaborée s’est développée, combinant la gestion administrative, financière et technique à l’échelle globale des projets de frontière et à celle de chaque site.
Préparer l’imprévisible
Authors: Keck Frédéric
Published: July 2024

Cet article présente les biographies de trois générations de la famille Lévy-Bruhl, Lucien, Henri et Raymond, respectivement fondateurs et membres d’instituts d’ethnologie, de droit et d'études économiques, à travers l’hypothèse suivante : ces « serviteurs de l’Etat », selon l’expression d’Alain Desrosières sur Raymond Lévy-Bruhl, développèrent un usage critique des statistiques du fait d’un rapport de confiance et de méfiance dû au souvenir de l’affaire Dreyfus, dont Lucien Lévy-Bruhl fut un des acteurs, quoique discret. Cette hypothèse permet de proposer une généalogie de la préparation aux catastrophes dans le socialisme français. Alors que les techniques par lesquelles les sociétés modernes ont imaginé les événements imprévisibles ont été analysées dans la social-démocratie américaine, cet article montre que de telles techniques impliquent une participation des individus à l’idéal de vérité et de justice.
La conservation et la valorisation des archives de la chorégraphe Mié Coquempot
Authors: Calbérac Yann , Chauffert Jessica
Published: July 2024

Cet article retrace les questionnements toujours actuels de la Compagnie K622, fondée en 1998 par la chorégraphe Mié Coquempot qui la dirigea jusqu’à son décès en 2019. La compagnie a déposé ses archives artistiques au Centre national de la danse en 2021 : ce dépôt a suscité d’intenses réflexions qui accompagnent le nouveau projet de la compagnie consistant désormais à faire connaître et faire revivre, grâce à des transmissions et des recréations, le répertoire de Mié Coquempot. Comment ces archives participent-elles de la construction d’un patrimoine chorégraphique qu’il convient de conserver, valoriser et transmettre ? Que nous apprennent-elles sur la vie et l’œuvre de la chorégraphe ?