bluuebunny/crossref_metadata_2025 huggingface dataset:
The Eruption of a Magnetic Flux Rope Observed by Solar Orbiter and Parker Solar Probe
Authors: Long David M. , Green Lucie M. , Pecora Francesco , Brooks David H. , Strecker Hanna , Orozco-Suárez David , Hayes Laura A. , Davies Emma E. , Amerstorfer Ute V. , Mierla Marilena , Lario David , Berghmans David , Zhukov Andrei N. , Rüdisser Hannah T.
Published: September 2023

Magnetic flux ropes are a key component of coronal mass ejections, forming the core of these eruptive phenomena. However, determining whether a flux rope is present prior to eruption onset and, if so, the rope’s handedness and the number of turns that any helical field lines make is difficult without magnetic field modeling or in situ detection of the flux rope. We present two distinct observations of plasma flows along a filament channel on 2022 September 4 and 5 made using the Solar Orbiter spacecraft. Each plasma flow exhibited helical motions in a right-handed sense as the plasma moved from the source active region across the solar disk to the quiet Sun, suggesting that the magnetic configuration of the filament channel contains a flux rope with positive chirality and at least one turn. The length and velocity of the plasma flow increased from the first to the second observation, suggesting evolution of the flux rope, with the flux rope subsequently erupting within ∼5 hr of the second plasma flow. The erupting flux rope then passed over the Parker Solar Probe spacecraft during its encounter (13), enabling in situ diagnostics of the structure. Although complex and consistent with the flux rope erupting from underneath the heliospheric current sheet, the in situ measurements support the inference of a right-handed flux rope from remote-sensing observations. These observations provide a unique insight into the eruption and evolution of a magnetic flux rope near the Sun.
A Surprising Periodicity Detected during a Super-outburst of V844 Herculis by TESS
Authors: Greiveldinger Anousha , Garnavich Peter , Littlefield Colin , Kennedy Mark R. , Halpern Jules P. , Thorstensen John R. , Szkody Paula , Oksanen Arto , Boyle Rebecca S.
Published: September 2023

We identify a previously undetected periodicity at a frequency of 49.08 ± 0.01 days−1 (period of 29.34 ± 0.01 minutes) during a super-outburst of V844 Her observed by TESS. V844 Her is an SU UMa type cataclysmic variable with an orbital period of 78.69 minutes, near the period minimum. The frequency of this new signal is constant in contrast to the superhump oscillations commonly seen in SU UMa outbursts. We searched without success for oscillations during quiescence using MDM, TESS, and XMM-Newton data. The lack of a periodic signal in the XMM light curve and the relatively low X-ray luminosity of V844 Her suggest that it is not a typical IP. We consider the possibility that the 29-minute signal is the result of super-Nyquist sampling of a dwarf nova oscillation with a period near the 2-minute cadence of the TESS data. Our analysis of archival AAVSO photometry from a 2006 super-outburst supports the existence of a 29-minute oscillation, although a published study of an earlier super-outburst did not detect the signal. We compare the X-ray properties of V844 Her with short orbital period intermediate polars (IP), V1025 Cen and DW Cnc. We conclude that the new signal is a real photometric oscillation coming from the V844 Her system and that it is unlikely to be an aliased high-frequency oscillation. The steady frequency of the new signal suggests that its origin is related to an asynchronously rotating white dwarf in V844 Her, although the precise mechanism producing the flux variations remains unclear.
On the Nature of the Energy-dependent Morphology of the Composite Multi-TeV Gamma-Ray Source J1702-204
Authors: Aharonian Felix , Malyshev Denys , Chernyakova Maria
Published: September 2023

HESS J1702-420 is a multi-TeV gamma-ray source with an unusual energy-dependent morphology. The recent H.E.S.S. observations suggest that the emission is well described by a combination of the point-like HESS J1702-420A (dominating at highest energies, ≳30 TeV) and diffuse (∼0.°3) HESS J1702-420B (dominating below ≲5 TeV) sources with very hard (Γ ∼ 1.5) and soft (Γ ∼ 2.6) power-law spectra, respectively. Here, we propose a model that postulates that the proton accelerator is located at the position of HESS J1702-420A and is embedded into a dense molecular cloud that coincides with HESS J1702-420B. In the proposed model, the very-high-energy radiation of HESS J1702-420 is explained by pion-decay emission from the continuously injected relativistic protons propagating through a dense cloud. The energy-dependent morphology is defined by the diffusive nature of the low-energy proton propagation, transiting sharply to (quasi) ballistic propagation at higher energies. Adopting a strong energy dependence of the diffusion coefficient, D ∝ E

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with β ≥ 1, we argue that HESS J1702-420 as a system of two gamma-ray sources is the result of the propagation effect. Protons injected by a single accelerator at a rate

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can reasonably reproduce the morphology and fluxes of the two gamma-ray components.
Improvement of Pan-STARRS Photometric Calibration with LAMOST and Gaia
Authors: Xiao Kai , Yuan Haibo , Huang Bowen , Zhang Ruoyi , Yang Lin , Xu Shuai
Published: September 2023

In this work, we perform the recalibration of Pan-STARRS1 (PS1) photometry by correcting for position-dependent systematic errors using the spectroscopy-based stellar color regression (SCR) method, the photometry-based SCR method, and the Gaia BP/RP synthetic photometry method. We confirm the significant large-scale and small-scale spatial variation of the magnitude offsets for all the grizy filters. We show that the PS1 photometric calibration precisions in the grizy filters are around 5–7 mmag when averaged over 14′ regions. We note a much larger calibration error up to 0.04 mag in the Galactic plane, which is probably caused by the systematic errors of the PS1 magnitudes in crowded fields. The results of the three methods are consistent with each other within 1–2 mmag or better for all the filters. We provide 2D maps and a Python package to correct for position-dependent magnitude offsets of PS1, which can be used for high-precision investigations and as a reference to calibrate other surveys.
Complementary and alternatives care for postpartum preeclampsia: A scoping review
Authors: Rini Susilo , Soetrisno Soetrisno , Andayani Tri Rejeki , Suminah Suminah
Published: September 2023

This scoping review aimed to examine the existing evidence on complementary and alternative medicine interventions for preeclampsia, emphasizing empowering midwives in postpartum treatment. Three databases (PubMed, Web of Science, Scopus) were used following the PRISMA-2020 guidelines to find articles from January 2012 to December 2022 and synthesized using Rayyan AI software. A total of 707 articles were initially identified, 7 were included in the review. Traditional Chinese Medicine combined with Western medicine showed promise in treating severe preeclampsia. Massage therapy reduced anxiety, aromatherapy positively affected postpartum well-being, and warm foot therapy reduced swelling associated with postpartum preeclampsia. Using herbal ingredients, lavender aromatherapy, magnesium sulfate, massage, and physical therapy contributed to successful postpartum preeclampsia management. Complementary and alternative medicine, collaboration with community health workers, clear guidelines, targeted training, and future research are crucial for effective postpartum preeclampsia management.
Amplicon metagenomics of dung beetles (Coleoptera, Scarabaeidae, Scarabaeinae) as a proxy for lemur (Primates, Lemuroidea) studies in Madagascar
Authors: Frolov Andrey V. , Akhmetova Lilia A. , Vishnevskaya Maria S. , Kiriukhin Bogdan A. , Montreuil Olivier , Lopes Fernando , Tarasov Sergei I.
Published: September 2023

Dung beetles (Scarabaeidae, Scarabaeinae) are among the most cost-effective and informative biodiversity indicator groups, conveying rich information about the status of habitats and faunas of an area. Yet their use for monitoring the mammal species, that are the main providers of the food for the dung beetles, has only recently been recognized. In the present work, we studied the diet of four endemic Madagascan dung beetles (Helictopleurus fissicollis (Fairmaire), H. giganteus (Harold), Nanos agaboides (Boucomont), and Epilissus splendidus Fairmaire) using high-throughput sequencing and amplicon metagenomics. For all beetle species, the ⅔–¾ of reads belonged to humans, suggesting that human feces are the main source of food for the beetles in the examined areas. The second most abundant were the reads of the cattle (Bos taurus Linnaeus). We also found lower but significant number of reads of six lemur species belonging to three genera. Our sampling localities agree well with the known ranges of these lemur species. The amplicon metagenomics method proved a promising tool for the lemur inventories in Madagascar.
Accompagner les nomades du Zagros en Iran. Notes ethnographiques d’une archéologue
Authors: Hashemi Zahra
Published: September 2023

Dans le paysage archéologique du Proche-Orient ancien, la chaîne montagneuse du Zagros, située à l’ouest de l’Iran, constitue à la fois un obstacle naturel et un carrefour d’influences culturelles entre deux civilisations majeures de l’ancien monde, celles du plateau iranien et de la plaine mésopotamienne. La région est un patchwork composé de vastes prairies propices à l’élevage et au nomadisme, ainsi que de larges vallées favorables à l’agriculture et à la sédentarité. Le nomadisme étant difficile à appréhender d’un point de vue archéologique, j’ai entrepris une enquête ethnographique pour comprendre ce mode de vie et mieux répondre à mes questionnements d’archéologue. La région du Luristan est encore aujourd’hui fréquentée par plusieurs tribus nomades. J’ai suivi au printemps 2021 des familles de la tribu Bakhtiari, depuis leur campement d’hiver au Khuzestan vers leur campement d’été au Luristan. J’ai essayé de comprendre leurs raisonnements, leurs choix et leurs stratégies afin de mieux appréhender les possibilités et les modalités d’un mode de vie nomade d’un point de vue archéologique. Identifier les traces laissées par les nomades actuels sur leur chemin de nomadisation permet de mieux discerner et interpréter celles laissées par les nomades anciens.
La peur est aussi au début du monde
Authors: Thomas Marie
Published: September 2023

La peur panique, ou angoisse, est au commencement de la pensée plus qu’elle n’en marque l’interruption ; c’est ce que se propose de montrer cet article, à l’aide des réflexions teintées d’anthropogenèse sur lesquelles s’ouvre Arbeit am Mythos, oeuvre du philosophe allemand Hans Blumenberg.
Vladimir Poutine : les risques de la dérive messianique
Authors: Durin-Valois Marc
Published: September 2023

Le 24 février 2022, Vladimir Poutine décidait d’envahir l’Ukraine. Dans cette tribune, l’auteur s’attache à montrer en quoi, sur un fond orthodoxe ultraconservateur, l’accusation d’une satanisation de l’Occident, le sentiment de persécution et la référence répétée à l’apocalypse atomique témoignent du fait que le discours du Président russe tend, par séquences, à dériver vers un messianisme sectaire. Il évoque l’idée que si le chef du Kremlin se trouvait dos au mur, estimant sa vie et l’unité du pays menacées, un des scénarios redoutés serait celui d’un acte nucléaire relevant des ressorts psychologiques du suicide collectif altruiste.
La réforme du médico-social en question : inclusion ou pure figure de style ?
Authors: Vignon Morane
Published: September 2023

L’auteure, qui exerce notamment auprès d’adultes handicapés en établissement et service d’aide par le travail (ESAT), fait le constat que le contexte actuel dans le secteur du médico-social tend à invisibiliser la souffrance psychique et le handicap. Dans le prolongement de son article publié dans le Journal en 2022, elle met en avant un impératif d’économie financière qui vient appuyer un mouvement idéologique de fond, celui d’une clinique du soin mise à mal par l’objectif du « tout inclusif ». L’inclusion serait alors déconnectée de l’institution, pensée en dehors du collectif et se résumerait à une normalisation par le travail d’individus isolés. Explications.
Pratiques langagières autour du cadavre : une question de traduction
Authors: Boursier Léa
Published: September 2023

La médecine légale thanatologique se pratique au sein d’Instituts médico-légaux ( iml ) dans lesquels médecins légistes et agents techniques manipulent des cadavres lors d’autopsies ayant fait l’objet d’un obstacle médico-légal. Cette contribution s’appuie sur une recherche doctorale en psychodynamique du travail qui a consisté à mener une enquête ethnographique au sein d’un iml . Le cadavre résiste à une définition stricte, tout particulièrement lorsqu’il s’agit d’en faire usage. L’autrice propose d’abandonner le terme de statut – caractéristique du droit – au profit du concept de traduction qui permet de documenter et d’analyser les langages adressés ou non au cadavre en fonction de ce que les professionnels ont à faire sur lui et du sens qu’ils mettent au travail. Les nombreux verbatims proposés démontrent l’existence de stratégies défensives inédites et d’une division morale du travail.
« L’effet Lacan », entre aliénation et créativité
Authors: Vanrechem Delphine
Published: September 2023

Cet article interroge l’impact de la langue lacanienne sur les sujets et les sentiments de fascination ou de rejet qu’elle peut susciter. Si « l’effet Lacan » est avant tout un effet de langage, de quelle manière est-il possible de s’en distancier pour en percevoir le caractère poétique ? À partir des différents témoignages – de « lacaniens » comme de « non-lacaniens » – est posée la question des conditions de réception d’un « dire » poétique qui ne soit pas traumatique. L’article propose une piste de réponse à partir du concept d’ ambiance pare-excitante , ambiance propice à la rêverie qui surgit à la croisée du monde interne du sujet et de son monde externe. La réflexion de l’auteure invite à une étude psychosociologique sur les conditions de réception de la parole de Lacan, entre aliénation et créativité.
La délégation administrative revisitée : données expérimentales sur les conséquences comportementales de la motivation de service public et de l’aversion au risque
Authors: Tepe Markus , Shikano Susumu , Jankowski Michael , Lutz Maximilian
Published: September 2023

Il est essentiel de bien comprendre les questions de délégation administrative pour assurer la performance des organisations publiques. Le jeu du contrôle modélise la délégation comme un conflit d’intérêts entre un inspecteur et une personne contrôlée pour agir dans l’intérêt du premier. La présente étude teste des solutions alternatives pour surmonter le fait d’être « tire-au-flanc » présente dans le jeu du contrôle. Plus précisément, nous testons l’effet des incitants externes, tel qu’il apparaît sous l’effet de la solution de la théorie des jeux, par rapport au rôle des facteurs intrinsèques, à savoir la motivation de service public et l’aversion au risque lié à l’emploi. Les résultats d’une expérience en laboratoire ( N = 208) et d’une enquête ( N = 794) montrent que ni l’approche théorique des jeux, qui a inspiré le nouveau management public, ni la motivation de service public, qui en est l’antithèse, ne parviennent à expliquer le comportement des sujets. Au contraire, l’aversion au risque lié à l’emploi renforce le potentiel de contrôle et rend moins probable la possibilité d’être « tire-au-flanc ». Cette constatation laisse entrevoir une vision plus différenciée des attitudes des fonctionnaires en matière de risques en vue d’améliorer la délégation administrative. Remarques à l’intention des praticiens La promesse du nouveau management public selon laquelle les problèmes de contrôle de la délégation administrative disparaissent avec la mise en place d’incitants extrinsèques appropriés est trop simpliste. D’autre part, la motivation de service public, qui a commencé comme une antithèse du bureaucrate intéressé, ne résout pas non plus le problème de « tire-au-flanc » dans la délégation administrative. Au contraire, l’aversion au risque lié à l’emploi semble améliorer la délégation administrative, ce qui constitue un contrepoint remarquable à l’opinion populaire en matière de gestion publique selon laquelle l’aversion au risque est problématique pour les performances des organisations publiques. Plutôt que d’éviter de sélectionner des fonctionnaires averses au risque de manière générale, il conviendrait d’accorder plus d’attention aux domaines de la prise de décision administrative dans lesquels ces traits de caractère peuvent être bénéfiques.
La mauvaise performance des pouvoirs publics et les perceptions des citoyens : une étude quasi-expérimentale d’une crise budgétaire locale
Authors: Shinohara Shugo
Published: September 2023

Le lien entre les performances réelles des pouvoirs publics et les perceptions des citoyens concernant ces performances est controversé. Toutefois, compte tenu de la prévalence du biais de négativité, le lien entre les mauvaises performances et les perceptions des citoyens pourrait sembler solide. Pour explorer ce lien théoriquement non confirmé, cette étude utilise une quasi-expérience qui compare une ville japonaise en crise budgétaire, impliquant des augmentations d’impôts et des réductions de services, à un village de contrôle qui ne connaît pas de crise budgétaire. En utilisant une analyse des doubles différences avec un pré-test rétrospectif minutieux, on observe des effets négatifs de la crise budgétaire sur la perception du processus par les citoyens, alors que l’on n’observe aucun effet sur la satisfaction du service par les citoyens et la confiance dans le maire, le conseil et les administrateurs. L’étude révèle en outre des associations positives entre les perceptions des performances chez les citoyens et l’engagement civique. Nous analysons ces résultats afin d’identifier les conditions limites dans lesquelles un lien entre mauvaises performances et perception négative est susceptible d’apparaître. Remarques à l’intention des praticiens La littérature psychologique sur le biais de négativité suggère que les liens et mécanismes de causalité entre les mauvaises performances et les perceptions négatives sont plus forts que ceux entre les bonnes performances et les perceptions positives. Les citoyens, mais aussi les politiques et les administrateurs, ont des préjugés négatifs. Leurs stratégies d’évitement du blâme pourraient atténuer l’augmentation des perceptions négatives des citoyens à l’égard des mauvaises performances. La gouvernance participative pourrait modérer le lien entre mauvaise performance et perception négative en plaçant les citoyens dans un processus d’amélioration de la performance et en favorisant leur interaction avec les représentants du gouvernement.
Symmetric $ n $-derivations on prime ideals with applications
Authors: Ali Shakir , Alali Amal S. , Husain Sharifah K. Said , Varshney Vaishali
Published: September 2023

Let $ \mathfrak{S} $ be a ring. The main objective of this paper is to analyze the structure of quotient rings, which are represented as $ \mathfrak{S}/\mathfrak{P} $, where $ \mathfrak{S} $ is an arbitrary ring and $ \mathfrak{P} $ is a prime ideal of $ \mathfrak{S} $. The paper aims to establish a link between the structure of these rings and the behaviour of traces of symmetric $ n $-derivations satisfying some algebraic identities involving prime ideals of an arbitrary ring $ \mathfrak{S} $. Moreover, as an application of the main result, we investigate the structure of the quotient ring $ \mathfrak{S}/\mathfrak{P} $ and traces of symmetric $ n $-derivations.
Research on the impact of green finance on the high quality development of the sports industry based on statistical models
Authors: Han Hui , Yang Chaoyu , Geng Xianya
Published: September 2023

The significant impact of high levels of green finance penetration on the development of the sports industry is evident, contributing to its comprehensive and high-quality growth across multiple dimensions. After analyzing the current state of the sports industry in China, data from 31 provincial-level administrative regions between 2008 and 2021 were carefully selected. An evaluation index system was established to assess the development of green finance and the high-quality development of the sports industry. The entropy method was applied to measure the levels of green finance and the quality of sports industry development in different regions. Empirical research demonstrates a statistically significant and positive relationship between green finance and the high-quality development of the sports industry, reaching a significance level of 1%. Nonetheless, there are still several challenges and areas for improvement within the realm of green finance and the sports industry's high-quality development. To propel the sports industry's growth under the umbrella of green finance, efforts should be focused on expediting the enhancement and construction of green finance, utilizing it effectively to empower the sports industry, staying attuned to the trends and dynamics of green finance development, as well as fostering a congenial environment for its further advancement.
Molecular docking and dynamics studies show: Phytochemicals from Papaya leaves extracts as potential inhibitors of SARS–CoV–2 proteins targets and TNF–alpha and alpha thrombin human targets for combating COVID-19
Authors: Shukor Mohd Shukri Abd , Shukor Mohd Yunus Abd
Published: September 2023

Tackling COVID-19 requires halting virus proliferation and reducing viral complications in humans. Papaya leaf extract (PLE) is well known for its ability to inhibit numerous viral replications in vitro and in vivo and reduce viral complications in humans such as thrombocytopenia and cytokine storm. The goal of this research is to evaluate the possible use of papaya leaf extract as a multifaceted antiviral and potential therapy for COVID-19 using an in-silico docking followed by a 100 ns molecular dynamics simulation (MDS) approach. The targeted proteins are the SARS-CoV-2's proteins such as the nucleocapsid, main protease (MPro), RNA-dependent RNA polymerase (RdRP), spike protein (Wuhan, Delta, and Omicron variants) and human TNF-alpha and alpha-thrombin protein targets. Several compounds from PLE such as protodioscin, clitorin, glycyrrhizic acid, manghaslin, kaempferol–3–(2g–glucosylrutinoside), rutin, isoquercetrin and acacic acid were found to exhibit strong binding to these targets. The free energies of binding (Autodock) with protodioscin, the best PLE compound for nucleocapsid, main protease (MPro), RdRP and spike protein were –13.83, –13.19, –11.62 and –10.77 (Omicron), kcal/mol, respectively, while the TNF-alpha and alpha-thrombin binding free energies were –13.64 and –13.50 kcal/mol, respectively. The calculated inhibition constants for protodioscin were in the nanomolar and picomolar range at 216.34, 27.07, 73.28, and 99.93 pM, respectively, whilst RdRp and spike protein (Omicron) were in the nanomolar range at 3.02 and 12.84 nM, respectively. Protodioscin interacted with key residues of all protein targets. The binding affinity poses were confirmed by molecular dynamics simulation. Analysis of the binding affinities calculated employing the molecular mechanics-Poisson–Boltzmann surface area (MM-PBSA) shows favorable interaction between protodioscin, and all targets based on total binding-free energies corroborating the Autodock's docking results. In conclusion, compounds from PLE, especially protodioscin have good potentials in combating COVID-19.
Faculty peer-to-peer learning and support online during difficult times: Main types of interactions and engagement during structured faculty conversations
Authors: Gallardo-Williams Maria T. , Chapman Diane D.
Published: September 2023

The Faculty Conversation Series at North Carolina State University, offered by the Office for Faculty Excellence, is a virtual option to connect faculty across campus to discuss topics immediately relevant to the unique teaching needs that we are currently experiencing, ranging from technical aspects of teaching online to mental health needs of faculty and students. The purpose is to engage faculty in discovery and discussions that will be helpful to their teaching practice. To this end, we provide the attendees with reading materials, invite a subject matter expert, and facilitate a confidential conversation among interested faculty members in a secure online learning environment. In this article, we discuss the outcomes of the first year of this program, both qualitatively and quantitatively, including a content analysis of written faculty comments collected during the sessions, as well as best practices to organize similar meetings and to facilitate this kind of inclusive faculty engagement.
Sustaining and supporting the momentum of enduring pandemic practices
Authors: McCorkle Sarah , O'Brochta William , Box Cathy , Dean Mary-Catherine
Published: September 2023

Faculty members impacted by the COVID-19 pandemic inadvertently participated in a historic, widespread, and rapidly occurring educational development phenomenon: the global shift toward emergency remote teaching. We surveyed faculty members (n = 502) at four different institutions (a community college and a small, medium-sized, and large university) and collected self-reported data on faculty members’ continued use of educational technology tools or teaching techniques that they adopted for the first time during the pandemic. Faculty respondents also shared their perceptions on why this change to their teaching was valuable. Approximately 62% of the faculty surveyed reported their continued use of an educational technology tool, and 34% reported their continued use of a teaching technique or strategy. Higher education institutions must now consider the implications of these enduring pandemic practices, evaluate their effectiveness, and work to sustain the skill-building momentum of faculty who have invested time in adopting new technology tools and teaching techniques.
Mapping the Role of Artificial Intelligence in Managing Audience Participation in Journalism
Authors: Saridou Theodora A.
Published: September 2023

This chapter examines the contribution of artificial intelligence to the management of audience participation in the news production process. Although participatory journalism has revived expectations for strengthening community ties and restoring public trust in professional journalism, it is nevertheless often considered a field for malicious contributions and legal problems. For this purpose, this chapter initially identifies the problems that arise during the integration of users' contributions in the professional news media content. Then the automated methods and artificial intelligence techniques that allow more effective user-generated content exploitation are studied. The chapter also explores how international news organizations adopt artificial intelligence methods when incorporating participatory journalism in their daily practice. Finally, it attempts to propose future directions in this evolving field where artificial intelligence and audience participation in journalism intersect.
Reframing Student Behavior
Authors: Yoho Louise M.
Published: September 2023

This chapter discusses the downfalls of schools' overreliance on exclusionary discipline practices and law enforcement, what the literature says about the alternatives, and how rural schools can leverage their unique strengths to incorporate best practices in ways that work for their communities. Too often students are removed from where learning, including the learning of replacement behaviors, is most likely to occur. Beyond simply the missed opportunities that come from missing days of school, data indicate that students who get suspended or expelled are also almost three times as likely to be in contact with the juvenile justice system in the next school year. This involvement with the juvenile justice system often evolves into involvement with the adult correctional system and lower levels of employment and post-secondary attainment. Teachers and administrators must find a balance between ensuring a safe classroom for all students, while also making sure that even students with behavior concerns have the supports they need to stay in school.
Town, Country, and Rurality
Authors: Walters Annette G. , Shannon Gwendolyn P.
Published: September 2023

Living in close proximity to a mega metropolis may be misleading for those learning, working, living, and leading on the margins. Rural communities are often disengaged from the mainstream in the context of funding, staffing, training, retention, supports; students' needs, in the areas of access, equity, and social emotional services; and ample resources. In addition, considering limited resources for students, there are greater divides with resources for faculty and staff. Most continue to serve because they are vested in the community, sheer love of the profession, and pride from service. Recognizing the plurality of education as service and the duality of marginalization on the rural experience often requires the community to be responsible for or bearing the burden of maintaining the majority support of rural schools. Teaching, learning, and leading in such an environment is both nuanced and complex.
Compassion-Focused Social-Emotional Learning in the Online Classroom
Authors: Rahmat Mindith R.
Published: September 2023

In today's fast-paced world of online education, faculty are under immense pressure to achieve high levels of academic success in their classrooms. However, in the pursuit of academic achievement, the psychological well-being of faculty and students is often overlooked. Compassion-focused social-emotional learning (CFSEL) can support online teaching faculty in cultivating and transmitting a compassionate mindset, which can help them create a supportive, relational, and nurturing learning environment. This chapter provides educators with a comprehensive guide to implementing CFSEL strategies in the milieu of online education with a focus on compassion-based practices and strategies. This chapter explores the benefits of CFSEL for students and educators. The chapter provides practical strategies for (a) integrating CFSEL practices into the classroom, (b) creating a more dynamic and relational online learning environment, and (c) addressing common challenges within this medium.
Why Our Words Matter
Authors: Jones Elodie J.
Published: September 2023

Research concerning the growth mindset utilized when evaluating academic persistence, Yeager states, “... to achieve, we need more than inborn ability—we need the right mindset. He [Yeager] studies how students and adults feel they belong and are respected, that their work is relevant and purposeful, and that they can overcome setbacks and continue to improve” (Mills). Through Yeager's combined research with other growth mindsets researchers such as Carol Dweck and Angela Duckworth, their findings point to the idea that students must be allowed to explore, reflect, and create a level of self-awareness in their abilities to flourish while confronted by challenges to feed the growth mindset. How does one create this environment within an online graduate course? How can graduate students be pushed for rigor but allowed to be learners and explorers through rigorous graduate coursework?
Designing Online Learning Environments via Mobile Technologies
Authors: Elverici Sibel Ergün
Published: September 2023

In a world of rapid technological transition, the primary objective of this study is to explore the effectiveness of an online language learning approach that integrates Web 2.0 tools aligned with a specially developed instructional design in promoting social presence and satisfaction in online learning environments. Specifically, the primary aim is to investigate the influence of integrating Padlet into English classes for preparatory school students, focusing on their social presence and levels of satisfaction by conducting a quasi-experimental study. The results suggest that by incorporating Padlet into language instruction, more collaborative and effective language learning environments that lead to increased social presence and satisfaction among learners can be created.
Holistic Approaches to Student Support in Online Learning Environments
Authors: Akay Sabire
Published: September 2023

Online education has become increasingly popular in recent years, providing students with flexibility, accessibility, and convenience in pursuing their academic goals. However, as online education has grown, so too have the challenges and difficulties faced by students. This chapter aims to explore the primary challenges and obstacles that students face in online education and examine a range of effective strategies and approaches that educators can implement to mitigate these challenges. Through a thorough examination of the difficulties and shortcomings of online learning, the chapter will outline holistic and practical guidelines that educators can use to provide effective support to their students.
Data-Driven DOA Estimation Methods Based on Deep Learning for Underwater Acoustic Vector Sensor Array
Authors: Xie Yangyang , Wang Biao
Published: September 2023

Abstract Direction of arrival (DOA) estimation is a fundamental problem in underwater acoustic vector sensor array signal processing. Because of the advantages of deep learning technology, this paper proposes two categories of data-driven DOA estimation methods for underwater
acoustic vector sensor array, which transform the DOA estimation problem into a neural network classification problem. Specifically, one is the DOA estimation method of convolutional neural network based on teacher-student noise reduction (TS-CNN), which considers the covariance matrix as
the training data set; the other is a DOA estimation method based on long-short term memory network and attention mechanism (LSTM-ATT), which applies the time-domain signal as the training data set. The experimental simulation results show that: 1) when the number of array elements is small,
the accuracy of the DOA estimation method based on TS-CNN is equivalent to that of traditional methods, and it can effectively suppress the influence of noise when the signal-to-noise ratio (SNR) is low; 2) the accuracy of DOA estimation method based on LSTM-ATT is much higher than that of
traditional Multiple Signal Classification method, especially in the case of low SNR, which also proves the importance of temporal characteristics for DOA estimation in a real environment.
Quantifying Self-Noise of the Seaglider AUV Using a Passive Acoustic Monitor
Authors: Grasso Melodie , Velázquez Luis Pomales , Van Uffelen Lora
Published: September 2023

Abstract The Seaglider, a type of underwater glider, is a relatively quiet vehicle in comparison with propelled autonomous underwater vehicles, making it a desirable acoustic receiving platform. Vehicle operations, such as pumping/bleeding oil to change buoyancy, shifting/rotating
the battery to change pitch/roll, and oceanographic data collection, do, however, produce some self-noise. This system performance study analyzes the prevalence, frequency content, duration, and levels of self-noise associated with vehicle operations using data collected with a passive acoustic
monitoring system mounted on the body of a Seaglider vehicle. Guidance and control functions, including pitch, roll, and buoyancy changes, were the major source of platform noise, producing broadband noise ranging from less than a second to over 3 min in duration, with sound pressure levels
of 120‐145.5 dB re 1μPa. Frequencies below 10 kHz were the most impacted by self-noise, with a maximum 1/3 octave level of 137.5 dB re 1μPa in the 2.5kHz band caused by the pumping of oil in the variable buoyancy device. Guidance and control changes occurred during 4%‐13%
of the dive for dives greater than 500 m. The bulk of these operations, however, were performed near the surface and apogee of the dive and typically affected only about 6% of the dive cycle duration for deep dives.
FARMOVS and Avacare Health Group: advancing public health in Africa through world-class clinical research
Authors: Nel Werner
Published: September 2023

No abstract available.
Satellite glial cells in sensory ganglia play a wider role in chronic pain via multiple mechanisms
Authors: Qiu Xiaoyun , Yang Yuanzhi , Da Xiaoli , Wang Yi , Chen Zhong , Xu Cenglin
Published: September 2023

Satellite glial cells are unique glial cells that surround the cell body of primary sensory neurons. An increasing body of evidence suggests that in the presence of inflammation and nerve damage, a significant number of satellite glial cells become activated, thus triggering a series of functional changes. This suggests that satellite glial cells are closely related to the occurrence of chronic pain. In this review, we first summarize the morphological structure, molecular markers, and physiological functions of satellite glial cells. Then, we clarify the multiple key roles of satellite glial cells in chronic pain, including gap junction hemichannel Cx43, membrane channel Pannexin1, K channel subunit 4.1, ATP, purinergic P2 receptors, and a series of additional factors and their receptors, including tumor necrosis factor, glutamate, endothelin, and bradykinin. Finally, we propose that future research should focus on the specific sorting of satellite glial cells, and identify genomic differences between physiological and pathological conditions. This review provides an important perspective for clarifying mechanisms underlying the peripheral regulation of chronic pain and will facilitate the formulation of new treatment plans for chronic pain.
Evaluation of serum levels of interferon beta (INF-B) and Nucleotide-binding oligomerization domain 2 (NOD2) gene polymorphism in children with atopic asthma phenotype
Authors: Zedan Magdy M.E. , Aloraby Rania S. , Abousamra Nashwa K. , Wahba Yahya , El-Mabood Abd El-Hameed Suzy A.
Published: September 2023

Background

People of all ages are primarily affected by the chronic inflammatory disease asthma, which is most common in children. A modified International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire found 7.7% of Nile Delta schoolchildren had asthma. This research was to show is their association between the underlying gene polymorphisms of NOD2 and serum level of INF beta and atopic asthma phenotype in Egyptian children and evaluate is their relationship between NOD2 gene polymorphism and the serum level of INF beta.

Methods

The 127 asthmatic children in this case-control study had typical asthma symptoms, and the 39 age- and sex-matched healthy controls. Subjects were divided in to three groups: Atopic asthma phenotype group: included 60 asthmatic children who had allergic rhinitis and atopic dermatitis as a predominant symptom, Wheezy phenotype group: included 67 asthmatic children presented predominantly with wheezes and controls: 39 healthy controls were chosen because they appeared to be in good health, had no history of symptoms similar to those of asthma, and had no relatives who had allergies or asthma.

Results

Total serum IgE and eosinophil percentage in control groups showed a positive correlation (r=0.640, P=0.006). In asthmatics, serum INF-β and IgE correlated positively (r=0.217, P=0.031). Increased Serum eosinophilic percentage was associated with decreased serum INF-β and increased serum IgE.

Conclusions

In comparison to the wheezy phenotype group, the percentage of eosinophils is significantly higher in the atopic asthma phenotype. Serum INF-β and IgE levels went up in tandem with the percentage of eosinophils in the blood. rs2066845 NOD2 genotype The GG genotype increased the risk of asthma in general but not the type of asthma.
Operator-norm Trotter product formula on Banach spaces
Authors: Zagrebnov Valentin Anatol'evich
Published: September 2023

Proof of the operator-norm convergent Trotter product formula on a Banach space is unexpectedly elaborate and a few of known results are based on assumption that at least one of the semigroups involved into this formula is holomorphic. Here we present an example of the operator-norm convergent Trotter product formula on a Banach space, where this condition is relaxed to demand that involved semigroups are contractive.
Bibliography: 21 titles.
Нeтеров заряд, термодинамика и фазовый переход черной дыры в пространстве-времени Шварцшильда-Анти-де-Ситтера-Бельтрами
Authors: Angsachon Tosaporn , Ruenearom Krerkpon
Published: September 2023

Исследованы термодинамические свойства и фазовый переход Хокинга-Пейджа черной дыры в пространстве-времени Шварцшильда-анти-де Ситтера-Бельтрами (SAdSB). Обсуждаются координаты Бельтрами (инерциальные координаты) пространства-времени AdS. Для нахожения сферической гравитирующей массы и других физических величин введено преобразование между неинерциальными и инерциальными координатами пространства-времени AdS. Определен вектор Киллинга, с помощью которого вычисляется радиус горизонта событий черной дыры. С использованием нeтерова заряда найдены энтропия и температура черной дыры SAdSB и показано, что температура ограничена предельным значением радиуса пространства AdS. Аналогичным образом сформулированы соотношение Смарра и первый закон термодинамики черных дыр для пространства-времени SAdSB. Рассчитана свободная энергия Гиббса и теплоемкость этой черной дыры и рассмотрен фазовый переход между малыми и большими черными дырами. Также исследован фазовый переход первого рода между тепловым пространством-временем AdS и фазой большой черной дыры, вычислена температура Хокинга-Пейджа и проведено сравнение со случаем черной дыры SAdS.
Phytochemical studies of Premna schimperi, and antioxidant activities of the extract and an isolated compound
Authors: Nasir Isa Mohammedamin , Mammo Wendimagegn , Ele Yaya Estifanos
Published: September 2023

ABSTRACT. In this study, the attempts were made to isolate secondary metabolites from the solvent extract of the dried leaves of Premna schimperi (P. schimperi). Thus, six compounds, namely, ent-8b,12-epidioxy-12b-hydroxylabda-9(11),13-dien-15-oic acid-g-lactone (1), 3,5,5'-trihydroxy-6,7,3',4'-tetramethoxyflavone (2) and 3,5,7,5'-tetrahydroxy-6,3',4'-trimethoxyflavone (3), p-hydroxycinnamic acid (4), luteolin (5) and 1-nonacosanol (6) were isolated and characterized by NMR, UV-Vis, MS and FTIR spectroscopic techniques. All the compounds; except luteolin (5) were reported for the first time from the leaves of P. schimperi. In addition, the GC-MS analysis of the essential oil of the plant leaves revealed 47 compounds, of which a-curcumene (16.38%), caryophyllene (10.73%), eugenol (6.85%), b-sesquiphellandrene (4.65%), g-gurjunene (4.55%), terpinen-4-ol (2.9%), g-eudesmol (4.43%), linalool (2.2%) and caryophyllene oxide (2.67%) were the major compounds. Furthermore, assessment of the antioxidant activities of the MeOH extract and compound 1 using the DPPH assay revealed 95.3% and 62.2% DPPH inhibition, respectively, at concentration of 100 μg/mL.

 KEY WORDS: P. schimperi, GC-MS, DPPH radical scavenging assay, Antioxidant activity, Acetylation

Bull. Chem. Soc. Ethiop. 2023, 37(6), 1471-1486.DOI: https://dx.doi.org/10.4314/bcse.v37i6.14
Nkrumah’s legacy, feminism and the next generation
Authors: Mama Amina
Published: September 2023

This lecture challenges the narratives of postcolonial failure to argue that, Africans have accumulated valuable experiences that can lift us out of transgenerational obscurity and provide transformative lessons for the future. Among these are the legacies of Kwame Nkrumah and his vision of the interlinked nature of economic and cultural processes, and his affirmation of women’s role in African liberation. The lecture reviews Nkrumah’s intellectual legacy to argue that, aspects of this have been taken up in African feminist movements that give an afterlife to a praxis of African liberation. Characterized by transdisciplinary and activist approaches that link theory with practice, African feminism is strongest where it pursues the simultaneous transformation of political, cultural, and economic life. It is an approach exemplified in the digitally-curated, livestreamed Third Kwame Nkrumah Festival, and archived online.
Neutrophil-Lymphocyte, Platelet-Neutrophil, and PlateletLymphocyte Ratios as Indicators of Sickle Cell Anaemia Severity
Authors: Efobi Chilota Chibuife , Nri-Ezedi Chisom Adaobi , Madu Chika Sandra , Ikediashi Chuka Charles , Ejiofor Obiora , Ofiaeli Chika Ifeoma
Published: September 2023

Background: Sickle cell anaemia (SCA) imposes a substantial healthcare burden, affecting millions of people worldwide. Understanding  the determinants influencing SCA severity is crucial for enhanced disease management and optimized patient outcomes. This study  aimed to investigate the relationship between Neutrophil-Lymphocyte Ratio (NLR), Platelet-Neutrophil Ratio (PNR), Platelet-Lymphocyte  Ratio (PLR), and SCA severity.

Methods: A cohort of 45 children diagnosed with SCA and undergoing treatment at Chukwuemeka  Odumegwu Ojukwu University Teaching Hospital, Awka, was included in this study. Demographic and clinical data, along with laboratory measurements of the aforementioned ratios, were collected. The severity of SCA was assessed using numerical scoring.

Results: The  analysis revealed that PNR and PLR emerged as significant predictors of SCA severity, irrespective of the level of adiposity. In contrast,  NLR demonstrated no predictive value in relation to SCA severity.

Conclusion: The findings challenge the conventional notion that  neutrophils alone play a central role in the pathogenesis of sickle cell crises. These results contribute to a deeper understanding of the  disease and provide insights into possible alternative mechanisms underlying SCA severity. Further research is warranted to explore the  intricate interplay between platelets, neutrophils, lymphocytes, and other biological factors within the context of SCA. Ultimately, this  knowledge may pave the way for targeted interventions and improved management strategies for individuals living with SCA.
Professional Identity among New Rehabilitation Graduates in China: A Cross-Sectional Questionnaire-Based Survey
Authors: Zhang Xue , Qiu Kai-Yi , Chen Shao-Zhen
Published: September 2023

Background: The rehabilitation industry suffered in a terrible economic climate caused by the coronavirus disease 2019 (COVID19).  Healthcare resources and the labor force were directed towards epidemic prevention of post-pandemic, which exacerbated the issue.  This study evaluated the professional identity (PI) of new graduates majoring in rehabilitation therapy during the final harsh phase of COVID-19 and explored the factors influencing PI.

Methods: A cross-sectional investigation with a questionnaire was used in this study. A convenience sample of new graduates who majored in rehabilitation were recruited from hospitals and universities nationwide. The data collected demographic information and  scores of professional identities for students in the final phase of the strict COVID-19 control policy in 2022.

Results: This study indicated  that the average PI was quite a distance from the degree of ‘agree’ (3.84 on average), particularly for the fitness dimension (3.64 on  average). The results identified two influencing variables: employment (Beta= -0.09, P< 0.05) and educational patterns (Beta= 0.12, P<  0.01).

Conclusion: Higher education in rehabilitation should respond to the present shift in the structure of the rehabilitation industry  post-COVID-19. Meanwhile, the occupational environment of rehabilitation therapists and the medical value of rehabilitation therapy  deserves more attention. This study provides evidence for managers to improve organizational justice and adjust policies on the  distribution of medical resources.