bluuebunny/crossref_metadata_2025_split huggingface dataset:
Observational Characteristics of Radiation-mediated Shocks in Photospheric Gamma-Ray Burst Emission
Authors: Samuelsson Filip , Ryde Felix 
Published: October 2023

Abstract
Emission from the photosphere in gamma-ray burst jets can be substantially affected by subphotospheric energy dissipation, which is typically caused by radiation-mediated shocks. We study the observational characteristics of such emission, in particular the spectral signatures. Relevant shock initial conditions are estimated using a simple internal collision framework, which then serve as inputs for a radiation-mediated shock model that generates synthetic photospheric spectra. Within this framework, we find that if the free fireball acceleration starts at r
0 ∼ 1010 cm, in agreement with hydrodynamical simulations, then the typical spectrum consists of a broad, soft power-law segment with a cutoff at high energies and a hardening in X-rays. The synthetic spectra are generally well fitted with a standard cutoff power-law (CPL) function, as the hardening in X-rays is commonly outside the observable energy range of current detectors. The CPL-fits yield values for the low-energy index, α, and the peak energy, E
peak, that are centered around ∼ −0.8 and ∼220 keV, respectively, similar to typical observed values. We also identify a nonnegligible parameter region for what we call optically shallow shocks: shocks that do not accumulate enough scatterings to reach a steady-state spectrum before decoupling and thereby produce more complex spectra. These occur for optical depths

τ
≲
55

u

u

−
2

, where u

u
= γ

u

β

u
is the dimensionless specific momentum of the upstream as measured in the shock rest frame.
VERTICO. VII. Environmental Quenching Caused by the Suppression of Molecular Gas Content and Star Formation Efficiency in Virgo Cluster Galaxies
Authors: Brown Toby , Roberts Ian D. , Thorp Mallory , Ellison Sara L. , Zabel Nikki , Wilson Christine D. , Bahé Yannick M. , Bisaria Dhruv , Bolatto Alberto D. , Boselli Alessandro , Chung Aeree , Cortese Luca , Catinella Barbara , Davis Timothy A. , Jiménez-Donaire María J. , Lagos Claudia D. P. , Lee Bumhyun , Parker Laura C. , Smith Rory , Spekkens Kristine , Stevens Adam R. H. , Villanueva Vicente , Watts Adam B. 
Published: October 2023

Abstract
We study how environment regulates the star formation cycle of 33 Virgo Cluster satellite galaxies on 720 pc scales. We present the resolved star-forming main sequence for cluster galaxies, dividing the sample based on their global H i properties and comparing to a control sample of field galaxies. H i–poor cluster galaxies have reduced star formation rate (SFR) surface densities with respect to both H i–normal cluster and field galaxies (∼0.5 dex), suggesting that mechanisms regulating the global H i content are responsible for quenching local star formation. We demonstrate that the observed quenching in H i–poor galaxies is caused by environmental processes such as ram pressure stripping (RPS), simultaneously reducing the molecular gas surface density and star formation efficiency (SFE) compared to regions in H i–normal systems (by 0.38 and 0.22 dex, respectively). We observe systematically elevated SFRs that are driven by increased molecular gas surface densities at fixed stellar mass surface density in the outskirts of early stage RPS galaxies, while SFE remains unchanged with respect to the field sample. We quantify how RPS and starvation affect the star formation cycle of inner and outer galaxy disks as they are processed by the cluster. We show both are effective quenching mechanisms, with the key difference being that RPS acts upon the galaxy outskirts while starvation regulates the star formation cycle throughout disk, including within the truncation radius. For both processes, the quenching is caused by a simultaneous reduction in the molecular gas surface densities and SFE at fixed stellar mass surface density.
Solar–Stellar Connection: X-Ray Flares to Energetic (E > 10 MeV) Particle Events
Authors: Kahler S. W. , Ling A. G. 
Published: October 2023

Abstract
Energetic particle environments are an important factor for the viability of life on exoplanets surrounding flare stars. In the heliosphere, large gradual solar energetic (E > 10 MeV) particle (SEP) events are produced by shocks from fast coronal mass ejections (CMEs). Extensive observations of solar X-ray flares, CMEs, and SEP events can provide guidance for flare star models of stellar energetic particle (StEP) events, for which stellar flares, but only rarely the associated CMEs, are observed. Comparing an extensive list of peak fluxes, timescales, and peak temperatures of 585 ≥ M3.0 solar X-ray flares with the occurrence of associated SEP events of peak flux Ip > 1.4 proton flux units, enhanced with proxy decametric–hectometric type II radio bursts, we determine guidelines for StEP event outcomes, given only stellar X-ray flare inputs. Longer timescales and lower peak temperatures of X-ray flares with a given peak X-ray flux Fp are more favorable for occurrence of associated SEP/StEP events, which, however, are only a minority of all solar flare outcomes. Most solar flares do not result in SEP events, invalidating scaling laws between stellar flares, CMEs, and StEP events. We discuss recent observations and models of the flare–CME relationship and suggest that StEP intensities Ip may often be overestimated.
Fast Radio Bursts Generated by Coherent Curvature Radiation from Compressed Bunches for FRB 20190520B
Authors: Cui Xiang-han , Wang Zheng-wu , Zhang Cheng-min , Niu Chen-hui , Li Di , Zhang Jian-wei , Wang De-hua 
Published: October 2023

Abstract
The radiation mechanism of fast radio bursts (FRBs) has been extensively studied, but still remains elusive. Coherent radiation has been identified as a crucial component in the FRB mechanism, with charged bunches also playing a significant role under specific circumstances. In the present research, we propose a phenomenological model that draws upon the coherent curvature radiation framework and a magnetized neutron star, taking into account the kinetic energy losses of outflow particles due to inverse Compton scattering (ICS) induced by soft photons within the magnetosphere. By integrating the ICS deceleration mechanism for particles, we hypothesize a potential compression effect on the particle number density within a magnetic tube/family, which could facilitate achieving the necessary size for coherent radiation in the radial direction. This mechanism might potentially enable the dynamic formation of bunches capable of emitting coherent curvature radiation along the curved magnetic field. Moreover, we examine the formation of bunches from an energy perspective. Our discussion suggests that within the given parameter space, the formation of bunches is feasible. Finally, we apply this model to FRB 20190520B, one of the most active repeating FRBs discovered and monitored by FAST. Several observed phenomena are explained, including the basic characteristics, frequency downward drifting, and bright spots within certain dynamic spectral ranges.
A new species of the genus Proutia Tutt (Lepidoptera, Psychidae) from Korea, based on morphology and DNA barcodes
Authors: Lee Dong-June , Lee Jae-Seok , Kim Jongwon , Lee Hyeon , Byun Bong-Kyu , Roh Seung Jin 
Published: October 2023

The genus Proutia Tutt, 1899 (Lepidoptera, Psychidae) comprises 14 species found throughout the world. In East Asia, three species, Proutia chinensis Hättenschwiler & Chao, 1990, P. maculatella Saigusa & Sugimoto, 2014 and P. nigra Saigusa & Sugimoto, 2014, are known from Korea, Japan and China.
Proutia cornucervae Roh & Lee, sp. nov. is newly recognised from Korea. In addition, Bruandella niphonica (Hori) is transferred to genus Proutia. Male and genitalia of the species are described and DNA barcodes are provided.
Utilization of green ATR-FTIR spectroscopic method for quantitative analysis of Ibuprofen tablets
Authors: Fahelelbom Khairi M. S. , Saleh Abdullah , Mansour Ramez , Abujarad Rami 
Published: October 2023

Aim: The aim of this study is to propose a green and nondestructive method using the ATR-FTIR method for the quantitative analysis of Ibuprofen tablet dosage forms. Herein, the technique has been validated as an alternative green tool that evades necessary sample preparation procedures required in traditional quantitative methods.
Methods: The method depends on selecting CO of the Ibuprofen stretching band in the range 1620–1750 cm-1 to quantitatively determine Ibuprofen in original samples. The pack area (AUC) from ATR-FTIR spectral scanning of samples has been determined through the first derivative measurements.
Results: The assay results indicated that no interferences between the excipients or additives and the active ingredients of the commercial tablets interferences. The linearity is excellent within the concentration range of 0.2 to 1.5 w/w % (r = 0.9994). A percentage of recoveries ranged between 99.7–10.5 which are in good agreement with the pharmacopeial percent recovery standards. The high degree of sensitivity of the technique was demonstrated by obtaining a 0.028 w/w % detection limit and a 0.1599 w/w % limit of quantification values.
Quelles villes voulons-nous pour demain ?
Authors: Bihouix Philippe 
Published: October 2023

La population mondiale devient toujours plus urbaine et les métropoles ne cessent de croître dans des proportions difficilement soutenables. Quelques pistes sont ici proposées pour rendre les villes « durables » ou « neutres en carbone ». Nous devons construire mieux, au lieu de construire plus, et viser une taille stationnaire des villes. Nous devrons apprendre à prendre soin de notre héritage urbain et à le transmettre. Les villes « idéales » sont déjà là : ce sont les nôtres, qu’il faut entretenir, faire fructifier, réinvestir et adapter aux enjeux futurs.
Sauver le développement durable
Authors: Caye Pierre , Damour Franck 
Published: October 2023

Notre époque souffre d’un paradoxe : le consensus autour de l’urgence écologique n’a jamais été aussi grand et les résultats des politiques mises en œuvre pour y faire face restent décevants. Ce constat conduit souvent à remettre en question l’idée de développement durable qui a inspiré la plupart de ces politiques. Pierre Caye fait un pari à contre-courant, celui de prendre au sérieux l’expression du développement durable mais en déplaçant l’accent sur le durable plutôt que sur le développement.
Pourquoi (re)lire Raymond Aron en 2023 ?
Authors: de Lapparent Olivier 
Published: October 2023

Disparu il y a quarante ans, Raymond Aron mérite de continuer à être lu. À l’époque des radicalisations fréquentes, un « penseur de la modération » paraît hors-jeu. Mais son « réalisme » et sa conscience des drames de l’histoire le conduisent à proposer des actions qui allient pragmatisme et ambition. Aron nous invite à un exercice de lucidité active face à un avenir toujours plus incertain.
Le postlibéralisme catholique aux États-Unis
Authors: Chelini-Pont Blandine 
Published: October 2023

Dans le monde catholique américain, le courant « postlibéral » se développe autour de figures universitaires pour soutenir le Parti républicain. Il s’agit de recréer une politique chrétienne autour des valeurs morales traditionnelles, l’instance politique se subordonnant à l’instance religieuse. En outre, ce courant de pensée cherche à étendre son influence au-delà des États-Unis, profitant du développement des mouvements populistes. Il trouve déjà un allié dans la Hongrie de Viktor Orbán.
La fausse piété contre Jean de la Croix
Authors: Cugno Alain 
Published: October 2023

L’érotisme est très présent dans la poésie de Jean de la Croix. Il est pourtant impossible de faire une lecture « érotico-mystique » de son œuvre pour justifier les pratiques d’un Jean Vanier ou d’un Thomas Philippe dont on sait à quel point les liens avec le Carmel étaient puissants. C’est précisément en tenant cette ligne de crête que la ferveur authentique se distingue de la fausse piété.
Anisotension secondaire au syndrome d’apnée du sommeil : à propos de deux cas observés à Antananarivo
Authors: Ernestho-ghoud Indretsy Mahavivola , Soilihi Moustafa Abdou , Rajaonarison Ny Ony Narindra Lova Hasina , Raveloson Nasolotsiry Enintsoa , Ahmad Ahmad , Vololontiana Hanta Marie Danielle 
Published: October 2023

Inter-arm blood pressure difference secondary to atherosclerosis stenosis has been rarely reported in sleep apnea syndrome, particularly from Sub-saharan Africa. In this paper, we report two cases: The first case consists of an 83-year-old man who developed left inter-arm blood pressure difference secondary to left subclavian artery atherosclerosis occlusion and chronic angina. The second case consists of 76-year-old woman followed for type 2 diabetes, who developed right inter-arm blood pressure difference secondary to right carotid artery atherosclerosis stenosis complicated by left ischemic stroke and death. The only highlighted cause was sleep apnea syndrome.
L’anisotension secondaire à une sténose ou occlusion athéromateuse était rarement décrite au cours du syndrome d’apnée du sommeil, en particulier en Afrique Subsaharienne. Dans cet article, nous rapportons deux cas cliniques : Il s’agissait d’une part d’un patient âgé de 83 ans, présentant une anisotension gauche secondaire à une occlusion athéromateuse de l’artère sous clavière gauche et d’angor chronique, et d’autre part une patiente de 76 ans, suivie pour un diabète type 2 avec une obésité, présentant une anisotension droite secondaire à une sténose carotide athéromateuse droite, compliquée d’accident vasculaire cérébral ischémique et de décès. La seule cause mise en évidence était le syndrome d’apnée du sommeil léger à modéré.
Grossesse môlaire hydatiforme partielle invasive avec métastases pulmonaires et vaginales : À propos d’un cas
Authors: Diaouga Hamidou Soumana , Yacouba Maimouna Chaibou , Garba Rahamatou Madeleine , Oumara Maina , Lazare Houegbelo Laurent , Idi Nafiou , Nayama Madi 
Published: October 2023

Partial hydatidiform molar pregnancy is a product of conception with molar villi surrounding an amniotic cavity with an embryo. It has 69 chromosomes (most often XXY, XXX, XYY) and correspond to the triploid syndrome (embryonic mole). For several years, the partial hydatidiform molar pregnancy has been considered a benign entity that does not require strict monitoring like that of the complete molar pregnancy, but the appearance of cases of transformation of the partial hydatiform mole into an invasive molar pregnancy or choriocarcinoma questioned this strategy. From these facts the treatment and monitoring of partial molar pregnancy must be carried out with the same rigor as for the complete molar pregnancy. We report a case of invasive partial molar pregnancy with pulmonary and vaginal metastases.
La grossesse môlaire hydatiforme partielle désigne un produit de conception avec des villosités molaires entourant une cavité amniotique pourvue d’un embryon. Elle comporte 69 chromosomes (le plus souvent XXY, XXX, XYY) et correspondent au syndrome triploïde (môle embryonnée). Depuis plusieurs années, la grossesse môlaire hydatiforme partielle a été considérée comme une entité bénigne qui ne nécessite pas une surveillance stricte comme celle de la grossesse môlaire complète, mais l’apparition des cas de transformation de la grossesse môlaire partielle en une grossesse môlaire invasive ou choriocarcinome ; a remis en question cette stratégie. De ces faits le traitement et la surveillance des môles partielles doivent être conduit avec la même rigueur que pour la grossesse môlaire complète. Nous rapportons un cas de grossesse molaire partielle invasive avec métastases pulmonaires et vaginales.
Luxation sous talienne médiale pure traumatique au C.H. Emile Roux/France
Authors: Traoré Soumana , Tambassi Sory Ibrahim , Diallo Souleymane , Sanogo Cheick Oumar , Vidal Harry , Petit Hubert 
Published: October 2023

Pure subtalar dislocation is a rare traumatic lesion of the foot in which the calcaneus and the navicular bone are displaced relative to the talus which retains its normal position within the ankle mortise. It most often follows a high-energy equine varus trauma, a fall from a height, a traffic, sports or work accident. It is a therapeutic emergency. We report the case of a 29-year-old young man who, following a work accident, presented a purely closed medial subtalar dislocation treated orthopedically with a good functional result.
La luxation sous talienne pure est une lésion traumatique rare du pied dans laquelle le calcanéus et l’os naviculaire sont déplacés par rapport au talus qui conserve sa position normale au sein de la mortaise chevillère. Elle fait suite le plus souvent à un traumatisme en varus équin à haute énergie, à une chute de hauteur, à un accident de la circulation, sportif ou de travail. Elle est une urgence thérapeutique. Nous rapportons le cas d’un jeune de 29 ans ayant présenté suite à un accident de travail une luxation sous talienne médiale fermée pure traité orthopédiquement avec un bon résultat fonctionnel.
The Socio-Economic Impact of Displacement in Nigeria: A Reflection of the Internal Displace Persons (IDPs) Camp in Northern Nigeria
Authors: Joel Maichibi Haruna 
Published: October 2023

The study examine the growing wave of insecurity in the country and it advert effect on the citizens in the country as it displaced them from their homes which is affecting their means of livelihood. Displacement occurred in the form of violence, armed conflicts/banditry and violation of human rights. The study focus on the remote causes of the displacement with the purpose of proffering measures in curtailing the menace. The role played by government in handling the various causes of displacement and creating an avenue for their returning back to their place of habitation. This study remmends that government at all levels has to ensure peaceful co-existence of its citizen with a high level of patriotism, respects for belief, culture and tradition, fundamental human rights.
Critical Factors for the Adoption of Virtualization Software: An Empirical Study
Authors: Ally Said 
Published: October 2023

The growth of virtualization technologies has allowed cloud adopters to make better use of computing resources. Despite its rapid expansion, adopters are having difficulty locating an appropriate virtualization solution and realizing the desired benefits.
Six adoption factors were found to be the essential aspects of virtualization software for a seamless transition from physical to virtual computing after 43 tools and seven constructs were extracted using technology diffusion techniques. Based on the effect level, they are the software features, innovation risk, environmental factor, relative advantage, perceived usefulness, and social system. For public entities, the transition is specifically driven by ICT policies, regulations, and costs, whereas private sectors rely on market trends, the business status quo, and expert ranking. Adopters can utilize the study's findings as a strategic signal for a risk-free switch from physical to virtual computing, while vendors can leverage the design attributes to enhance software functionality.
Diacritic Restoration for Yoruba Text with under dot and Diacritic Mark Based on LSTM
Authors: Ogheneruemu Kingsley , Ajao Jumoke F , Isiaka Abdulrafiu , Asahiah Franklin O. , Orimogunje Olumide K. 
Published: October 2023

Abstract
Yoruba is a tonal language spoken primarily in Nigeria, some West African countries, and other parts of the world by over 40 million people. Many Yoruba texts written online lack tone marks, which can be confusing, ambiguous, and difficult for Natural Language Processing. This paper presents a method, which combines syllable-based approach and long short-term memory (LSTM) for diacritics restoration of standard Yoruba text.By enhancing the built-in varnishing gradient of RNN, the aim is intended to recover lost diacritics in Yoruba text for both characters that carry diacritic signs and underdot and return it with the proper diacritics. Data were acquired from Yoglobavoice, BBC Yoruba new and Yoruba words collected from literate indigenous writers. 27050 Yoglobalvoice datasets, 2000 Yoruba words extracted from BBC Yoruba news, and 1470 Yoruba words collected from a Yoruba language teacher.In addition, syllabic module was developed to group the tokenized word into different syllables. The output of the syllabication algorithm was fed into the Long Short-Term Memory (LSTM) module for training, the LSTM model was trained using 70% of the dataset and validated using 30% of the dataset. The result obtained showed 96% accuracy. From the result, it was observed that the use of LSTM for restoring diacritic gave an improved restoration of both character with under dot and character that contains tone-marks.
GIS-Based Assessment of Irrigation Water Quality Index in Selected Farm Areas, South-Western, Nigeria
Authors: Adeyeye Joseph A. , Omotoso Toyin , Oloruntade Ajayi J. , Otugboyega Joseph 
Published: October 2023

Water is the most essential nutrient for plant survival and its quality is vital to soil health and crop yields. This study evaluated, categorized and mapped water quality application condition in selected farm settlements, Ekiti North Senatorial District, Nigeria, using Irrigation Water Quality Index (IWQI). Twelve water samples from surface and groundwater sources across the farm settlements were collected and analyzed with replicates in the laboratory, following standard procedures. IWQI revealed that 61% of the water samples fall within ‘‘severe restriction" category covering the northeast and northwest parts while 39 % falls into the ‘‘high restriction" category for cropping covering the southern part respectively. The outcomes of the study allows for guided water use in relation to soil factor and provide good quality water database in the face of inadequate rainfall occasioned by climate change for optimum water utilization and crop production.
Electrical Characterization of InGaZnO-Based Thin Film Transistor fabricated by Three-mask Process
Authors: Amusan Akinwumi , Etor David 
Published: October 2023

Indium Gallium Zinc Oxide (InGaZnO) has gained increasing attention as a replacement for amorphous silicon in thin-film transistors (TFTs) owing to its excellent electrical and optoelectronic properties, chemical stability, and potential for low-temperature processing.
However, efforts are being made to optimize the design to improve the performance and reduce costs.
In this study, a top-contact top-gate (TCTG) structure of InGaZnO TFTs was fabricated using three lithography steps. The electrical current–voltage characteristics of the device were measured and used to extract the device parameters.
The result shows transistor parameters with threshold voltage of –9 V, ON-OFF ratio of in the range of 103, maximum mobility of 1.15 cm2V-1 s-1, subthreshold slope of in the range of 103 mV/dec, and maximum interface trap density of 1.53x103 (cm-2eV-1) at maximum applied voltage of 5 V.