bluuebunny/crossref_metadata_2025 huggingface dataset:
The Anisotropic Circumgalactic Medium of Massive Early-type Galaxies
Authors: Zhang 张 Huanian 华年 , Zaritsky Dennis
Published: December 2022

Using measurements of the [O iii], Hα, and [N ii] emission line fluxes originating in the cool (T ∼104 K) gas that populates the halos of massive early-type galaxies with stellar masses greater than 1010.4
M
⊙, we explore the recent conjecture that active galactic nucleus (AGN) activity preferentially removes the circumgalactic medium (CGM) along the polar (minor-axis) direction. We find deficits in the mean emission line flux of [O iii] and Hα (65% and 43%, respectively) along the polar versus planar directions, although due to the large uncertainties in these difficult measurements the results are of marginal statistical significance (1.5σ). More robustly (97%–99.9% confidence depending on the statistical test), diagnostic line ratios show stronger AGN ionization signatures along the polar direction at small radii than at other angles or radii. Our results are consistent with the conjecture of an anisotropic CGM in massive early-type galaxies, suggested on independent grounds, that is tied to AGN activity and begin to show the potential of CGM mapping using emission lines.
Direct Tests of General Relativity under Screening Effect with Galaxy-scale Strong Lensing Systems
Authors: Lian Yujie , Cao Shuo , Liu Tonghua , Biesiada Marek , Zhu Zong-Hong
Published: December 2022

Observations of galaxy-scale strong gravitational lensing (SGL) systems have enabled unique tests of nonlinear departures from general relativity (GR) on the galactic and supergalactic scales. One of the most important cases of such tests are constraints on the gravitational slip between two scalar gravitational potentials. In this paper, we use a newly compiled sample of strong gravitational lenses to test the validity of GR, focusing on the screening effects on the apparent positions of lensed sources relative to the GR predictions. This is the first simultaneous measurement of the post-Newtonian parameter (γ
PN) and the screening radius (Λ) without any assumptions about the contents of the universe. Our results suggest that the measured parameterized post-Newtonian is marginally consistent with GR (γ
PN = 1) with increasing screening radius (Λ = 10–300 kpc), although the choice of lens models may have a significant influence on the final measurements. Based on a well-defined sample of 5000 simulated strong lenses from the forthcoming LSST, our methodology will provide a strong extragalactic test of GR with an accuracy of 0.5%, assessed up to scales of Λ ∼ 300 kpc. For the current and future observations of available SGL systems, there is no noticeable evidence indicating some specific cutoff scale on kiloparsec-megaparsec scales, beyond which new gravitational degrees of freedom are expressed.
Properties of Type Iax Supernova 2019muj in the Late Phase: Existence, Nature, and Origin of the Iron-rich Dense Core
Authors: Maeda Keiichi , Kawabata Miho
Published: December 2022

Type Iax supernovae (SNe Iax) form a class of peculiar SNe Ia, whose early phase spectra share main spectral line identifications with canonical SNe Ia but with higher ionization and much lower line velocities. Their late-time behaviors deviate from usual SNe Ia in many respects; SNe Iax continue showing photospheric spectra over several 100 days and the luminosity decline is very slow. In this work, we study the late-time spectra of SN Iax 2019muj, including a newly presented spectrum at ∼500 days. The spectrum is still dominated by allowed transitions but with a lower ionization state, with possible detection of [O i]λλ6300, 6363. By comprehensively examining the spectral formation processes of allowed transitions (Fe ii, Fe i, and the Ca ii near-IR triplet) and forbidden transitions ([Ca ii]λλ7292, 7324 and [O i]), we quantitatively constrain the nature of the innermost region and find that it is distinct from the outer ejecta; the mass of the innermost component is ∼0.03 M
⊙ dominated by Fe (which can initially be 56Ni), expanding with a velocity of ∼760 km s−1. We argue that the nature of the inner component is explained by the failed/weak white-dwarf thermonuclear explosion scenario. We suggest that a fraction of the 56Ni-rich materials initially confined in (the envelope of) the bound remnant can later be ejected by the energy input through the 56Ni/Co/Fe decay, forming the second unbound ejecta component which manifests itself as the inner dense component seen in the late phase.
A Study of Radio Knots within Supernova Remnant Cassiopeia A
Authors: Lei Xianhuan , Zhu Hui , Zhang Haiyan , Tian Wenwu , Wu Dan
Published: December 2022

The study on the dynamic evolution of young supernova remnants (SNRs) is an important way to understand the density structure of the progenitor’s circumstellar medium. We have reported the acceleration or deceleration, proper motion, and brightness changes of 260 compact radio features in the second-youngest known SNR Cas A at 5 GHz based on the Very Large Array data of five epochs from 1987 to 2004. The radio expansion center is located at α(1950) = 23h21m9.ˢ7 ± 0.ˢ29, δ(1950) = +58°32′25.″2 ± 2.″2. Three-quarters of the compact knots are decelerating; this suggests that there are significant density fluctuations in the stellar winds of the remnant’s progenitor. We have verified that the acceleration or deceleration of compact knots is not related with the distribution of brightness. The brightening, fading, disappearing, or new appearing of compact radio features in Cas A suggests that the magnetic field in the remnant is changing rapidly.
In the Trenches of the Solar–Stellar Connection. VI. Total EclipSS
Authors: Ayres Thomas , Buzasi Derek
Published: December 2022

The Ecliptic poles Stellar Survey (EclipSS; 2018–2019) collected Hubble Space Telescope/Cosmic Origins Spectrograph (COS) 1150–1420 Å spectra of 49 FGK dwarfs at high ecliptic latitudes. These regions are favored by the scanning programs of the Transiting Exoplanet Survey Satellite (TESS; high-precision optical light curves) and Extended Roentgen Survey with an Imaging Telescope Array (eROSITA; repeated X-ray visits over half a decade), which can provide vital ancillary support in the exploration of high-energy “stellar activity.” The present study is a follow-on, focused on new Chandra/High Resolution Camera 0.1–2.4 keV X-ray pointings, COS 1340–1720 Å spectra, and TESS photometry of the 10 most active EclipSS members, but also including archival X-ray and far-ultraviolet (FUV) observations of 13 representative solar neighborhood FGK dwarfs, together with high-energy irradiances of the Sun, for context. The EclipSS dK+dM binary HD 41004 proved exceptional. The unexpectedly short TESS period (1.3 days) appears to be associated with the red dwarf secondary, possibly about to engulf a close-orbiting brown-dwarf companion. The current study describes the emission-line profiles of a high-resolution subset of the full sample, finding the non-Gaussian line shapes (sharper peaks, broader wings) and redshifts of T ∼ 105 K features to be remarkably independent of activity; quantifies X-ray and FUV “variability bias” based on several multiple-epoch campaigns; builds enhanced flux–flux diagrams (e.g., X-rays versus C iv); and constructs an “XUV” proxy flux, representing the total coronal radiative loss, to test models of the convective turnover time, τ
c. The associated Rossby number, Ro, is closely aligned to terrestrial and cosmic magnetic dynamo theories, and offers the prospect of a one-parameter description of stellar high-energy activity (relevant, for example, to host-star ionizing fluxes impacting exoplanets).
What are free schools, and what are they free from?
Authors: Bray David
Published: December 2022

This article is based on a PhD research project at the University of Birmingham. It examines the intersection between official descriptions of the post-2010 free school programme and the actual experiences of individuals who opened such schools. The tensions between them are located
within the control exerted by central government over school characteristics, even within an environment described as 'free'.
Le désir et la peur
Authors: Guy-Gillet Geneviève
Published: December 2022

La peur et le désir, ce couple fraternel que formaient Éros et Phobos pour les anciens Grecs, mettent en scène, ici, quelques uns de leurs débats. Ceux-ci, exposés à travers des matériaux d’analyse, font apparaître comment notre conscience moderne accueille, à son tour, cet irrationnel et ce qu’elle fait de ce savoir.
Le problème religieux
Authors: Devescovi Pier Claudio
Published: December 2022

Jung interprète l’Écriture Sainte en psychologue. Ce faisant, il propose un renouvellement des conceptions théologiques. Il voudrait qu’elles soient mieux adaptées à la réalité psychique de l’homme contemporain. Les problèmes qu’il aborde, sa méthode et les conclusions auxquelles il aboutit sont très proches des interrogations des humanistes du xv e siècle. L’auteur met en évidence, à travers cette communauté d’esprit, l’influence de l’historien de la Renaissance Jakob Burckhardt sur la pensée de Jung.
Le peintre, le bébé et le psychanalyste
Authors: Lemaître Véronique
Published: December 2022

Reprenant la thèse de Joyce McDougall sur le fondement homosexuel de l’acte de création (solution originale à l’impossible réalisation du désir d’ être et d’ avoir les deux sexes) l’auteur décrit comment, par sa peinture, Francis Bacon semble se donner naissance à lui-même et s’approprier l’expérience de se sentir vivant. Si son œuvre peut apparaître comme une figuration contemporaine équivalente à celle du Rosaire des Philosophes , on peut aussi y lire les aléas d’une quête qui serait commune au peintre, au bébé et au psychanalyste : avoir accès à ce qui anime la vie intérieure de l’être aimé. L’acte créateur du psychanalyste consisterait à s’offrir lui-même comme matériau et comme public à un patient qui aurait ainsi loisir de se créer lui-même à son contact.
Créativité et destruction
Authors: Guy-Gillet Geneviève
Published: December 2022

Au terme de ses activités de psychanalyste, l’auteur s’interroge ici sur son appartenance au mouvement jungien et sur la spécificité de ses concepts quant à leur application en psychanalyse. Elle estime, pour sa part, que les hypothèses théoriques de Jung, issues de sa pratique, ses réflexions sur l’engagement dans l’épreuve du transfert, l’importance donnée à l’expérience vécue ainsi qu’à la façon d’en rendre conscient les effets, l’accent mis sur le jeu des opposés, tour à tour créatifs et destructifs, dans tout acte de conscience, le concept d’individuation, ont constitué la base de son engagement et fourni les bases d’un dialogue fécond avec les autres sources de la psychanalyse.
Point de vue sur l’article de Greg Mogenson
Authors: Vieljeux Juliette
Published: December 2022

Ce commentaire met l’accent sur les dangers d’une lecture qui ne se voudrait qu’imaginale du processus de deuil. Le glissement fréquent entre réalité objective et réalité psychique, de même que la concrétisation de l’image et certaines assertions catégoriques pourraient esquiver la remise en question fondamentale – tant sur le plan pulsionnel que narcissique – qui s’opère lors de la perte d’un être cher.
Le deuil et les images
Authors: Dorly Claire
Published: December 2022

On propose une lecture critique de l’article de Greg Mogenson à partir du statut de l’image dans la psyché individuelle et collective.
La neutralité comme capital. Les ressorts symboliques de la compétitivité suisse sur le marché de l’arbitrage privé international (1970-1980)
Authors: Beausire Guillaume
Published: December 2022

L’essor du marché de l’arbitrage international au début des années 1970 s’est traduit par une utilisation croissante de tribunaux privés par les acteurs économiques transnationaux, faisant de la justice du commerce international un produit de marché prometteur d’importants profits. Une vive compétition s’est alors amorcée entre les principales places nationales pourvoyeuses de ces services. Leur stratégie pour attirer de nouveaux litiges reposait sur la construction d’un capital national combinant des ressources juridiques et symboliques. Dans cette course à l’attractivité internationale, la place suisse s’est retrouvée menacée par ses principaux concurrents anglais et français dans le cadre d’une compétition normative axée sur la libéralisation du droit de l’arbitrage destinée à offrir une plus grande flexibilité aux entreprises parties à une procédure. Elle est néanmoins parvenue à compenser son retard juridique en valorisant le mythe de la neutralité helvétique qui lui a permis, dans le contexte de la décolonisation, d’attirer des litiges d’envergure, opposant notamment des entreprises du Nord à des acteurs du Sud global.
Examen de passage
Authors: Devinat François
Published: December 2022

« Bienvenue dans l’au-delà. Vous venez de mourir et nous allons traiter votre dossier… » Les morts sont-ils vraiment morts ? Et s’ils ne le sont pas vraiment, quel genre d’accueil les attend « là-haut » ? À ces questions immémoriales, ce texte prétend donner d’utiles réponses teintées d’humour noir. Nous suivons les aventures kafkaïennes d’un modeste salarié en «  burn out  », passé soudain de l’autre côté du miroir. Aspiré par un tunnel de lumière, selon le rituel connu, il va devoir répondre aux questions d’un examen de passage sélectif rigoureux s’il veut prétendre à la béatitude. Un mortel averti en vaut deux : mieux vaut se préparer à l’avance aux arcanes célestes…
Le secret et la mort
Authors: Duchâteau Véronique
Published: December 2022

L’irruption de la mort comme des abus sexuels, notamment de l’inceste, entraînent le plus souvent un secret dans lequel nos patients sont tenus, y restant figés. A l’opposé du « petit secret » se trouve ce secret obscur. Il est morbide car il s’attaque aux lois de la Vie.Deux vignettes cliniques en illustrent la puissance et le mécanisme du mouvement d’enfermement dans lequel sont saisies ces patientes. Je décris ici leur accompagnement au long cours. La Vie va pouvoir s’entrouvrir pas à pas grâce au fil thérapeutique régulier, solide et cadré permettant toutes les formes d’invitation à se dire.
L’identité collective : permanences et transformations
Authors: Vibert Stéphane
Published: December 2022

Considérant que l’humanité se manifeste concrètement à travers une multiplicité de sociétés aux langues, mœurs, institutions diverses, le texte entend soulever l’hypothèse d’un « besoin d’appartenance » naturel aux êtres individués, lequel se décline sous la forme d’un attachement cognitif, normatif et expressif aux « identités collectives » qui en sont le vecteur de socialisation. À partir de ce fondement ontologique commun, la modernité offre une forme particulière de communauté par l’intermédiaire de la « nation », à l’articulation du politique et du culturel. Le délitement contemporain de cette unité symbolique ouvre la porte à une multitude d’identités alternatives et concurrentes, dont il faut reconnaître la nécessité existentielle tout autant que la construction idéologique.
Troubles dans l’identité
Authors: Caillé Alain
Published: December 2022

Chaque jour, la guerre des identités fait un peu plus rage. C'est le résultat à la fois de la dynamique démocratique d'égalisation imaginaire des conditions, si bien analysée par Tocqueville, et de l'hégémonie mondiale du néolibéralisme. Celle-ci a donné naissance à un totalitarisme à l'envers, à un parcellitarisme qui délégitime et détruit toutes les identités collectives. Ne reste plus, tendanciellement, que l'individu consommateur qui cherche son identité de la même manière qu'on achète des biens ou des services sur le marché. Ou qui invoque une identité fantasmatique perdue. Or l'identité vraie ne peut pas être trouvée dans un passé disparu mais dans le cadre d'un avenir (post-néolibéral) à bâtir en commun.
« The great principle of Brotherhood » : John Ruskin et l’économie du don
Authors: Lombard Gabriel
Published: December 2022

Critique et historien d’art, intellectuel prolifique, inspirateur de Gandhi et du socialisme britannique, John Ruskin (1819-1900) est un penseur complexe à appréhender. Sa véhémente critique du capitalisme victorien au nom de la dignité du travail humain et de la beauté se conjugue avec des vues politiques très conservatrices. En prenant pour point de départ la question maussienne du don et du contre-don face à Dieu, à la nature, et à autrui, et en s’appuyant sur les textes des années 1853-1864, on peut percevoir la cohérence de son oeuvre, à l’intersection des champs esthétique et moral. La religion joue un rôle décisif dans cette pensée holiste de l’entraide humaine et de la déférence face à un monde dont la sacralité dépasse toujours le sujet individuel.
La théorie de la résonance et la communication sociale
Authors: Voirol Olivier
Published: December 2022

Apparue au XVII e  siècle, la question de la résonance est aussi ancienne que celle de la communication – centrée sur l‘écoute et l’oreille, elle diffère de la seconde qui se centre sur le langage et la parole. Résonance et communication renvoient toutes deux à la question de la formation de soi et de l’éducation – thèmes travaillés par Charles Taylor dans le cadre de sa philosophie de l’identité et par Hartmut Rosa dans sa sociologie des « relations au monde ». Les questions propres à la résonance et à la communication portent également sur l’espace public démocratique et l’organisation de ses médiations – de ses médias et de ses technologies. Décuplée ou, au contraire, affaiblie par ces médiations, la résonance de l’espace public peut s’étioler jusqu’au « mutisme du monde » (Rosa). Ancré dans une critique de la modernité dont les sources remontent au romantisme, le thème de la résonance permet ainsi de pointer les formes contemporaines de l’aliénation tout en envisageant une relation au monde (et à la nature) signifiante et sensible, inséparable de la formation de sujets sociaux « réalisés » en tant que membres actifs d’une collectivité politique. La quête de résonance peut cependant engendrer l’inverse, à savoir un « sujet excentrique » (Altmeyer) soumis aux incitations des supports techniques de la « modernité numérique ». Le présent texte discute ainsi les différents apports de la théorie de la résonance à l’étude critique de la communication sociale.
Development of a Culturally Sensitive Recovery-Oriented Nursing Care Model in Community Psychiatric Nursing
Authors: Matsuoka Sumiko
Published: December 2022

The current study aimed to develop a culturally sensitive recovery-oriented nursing care model in community psychiatric nursing. Through an exploration of recovery-oriented nursing care based on cultural sensitivity, which was done in a prior study and through a literature review, an initial model with six categories was developed. Semi-structured interviews were performed with eight community psychiatric nurses who used the model for 2 months in practice. Qualitative description was used to analyze the data. Participants completed a list of care items in each category of the model to compare ease of practice. The model was further refined to three levels of culturally sensitive nursing care. The model showed the importance of reflection based on recognition of cultural influences, relinquishing the power of the profession, and cooperation that accepts diverse values. [
Journal of Psychosocial Nursing and Mental Health Services, 61
(8), 25–33.]
Effect of Rs5746136 genotypes on SOD activity and biomarkers levels in breast cancer patients
Authors: Abdulabbas Hadi Sajid , Al-Mawlah Yasir Haider
Published: December 2022

Oxidative stress factors are among the most common carcinogens, Superoxide dismutase enzyme-2 (SOD2) is an endogenous antioxidant involved in the scavenging of superoxide anions. This study aimed to investigate the effect of the SOD2 gene polymorphism (rs5746136) on SOD activity and biomarker levels in breast cancer patients. This study aimed to investigate the effect of SOD2 gene (rs5746136) polymorphisms on SOD activity and biomarkers levels in breast cancer patients. The spectrophotometry methods were used to detect malondialdehyde (MDA) and Catalase (CAT), Superoxide dismutase (SOD), and Glutathione (GSH) levels, which reflect antioxidant capacity, and the genotypes of rs5746136 were detected utilize PCR and RFLP. According to the current findings, the GA genotype of the control group was the most common (70%), followed by GG and AA genotypes (26.7% and 3.3%) respectively. In the patient group, the most common genotype was GG (45.6%), followed by the GA genotype (42.8%) and then the AA genotype (11.4%) The frequency of heterozygous genotype G/A compared to the homozygous genotype (G/G) [OR = 0.3571, 95% CI = 0.1375–0.9277, P = 0.0345]. The AA genotype is significantly associated with an increased risk of developing BC [OR = 2.00, p = 0.5403, CI: 0.2175–18.3883]. No significant differences were found in frequencies of the A allele between patients and control groups [OR = 0.7872, 95% CI = 0.4198–1.4762, P = 0.4558]. In addition, there are modest (P 0.05) relationships between serum biochemical parameters levels and rs5746136 genotype in breast cancer patients, but a substantial association between serum SOD activity and GSH concentration and GA and GG rs5746136 genotype in the control group. In conclusion, the current investigation suggests that the AA genotype of (rs5746136) in the MnSOD gene may be associated with an increased risk of breast cancer. The chosen SOD2 variants (rs5746136) play a crucial role in controlling the activity of the SOD enzyme.
Transmission effect of extreme risks in China's financial sectors at major emergencies: Empirical study based on the GPD-CAViaR and TVP-SV-VAR approach
Authors: Mo Tingcheng , Xie Chi , Li Kelong , Ouyang Yingbo , Zeng Zhijian
Published: December 2022

Major emergencies cause massive financial risk and economic loss. In the context of major emergencies, we propose the GPD-CAViaR model to depict the extreme risks of financial sectors, and utilize the TVP-SV-VAR model to analyze their transmission effect. We find that (ⅰ) the securities sector has the highest extreme risks among the four financial sectors; (ⅱ) when major emergencies occur, the extreme risks of various financial sectors increase rapidly; (ⅲ) the transmission effect in short term is stronger than that in medium and long term; and (ⅳ) the transmission effects at different time points are relatively consistent.
Critical regularity of nonlinearities in semilinear effectively damped wave models
Authors: Djaouti Abdelhamid Mohammed , Reissig Michael
Published: December 2022

In this paper we consider the Cauchy problem for the semilinear effectively damped wave equation

   \begin{document}$ \begin{equation*} u_{tt}-u_{xx}+b(t)u_{t} = |u|^{3}\mu(|u|), \, \, \, u(0, x) = u_{0}(x), \, \, \, u_{t}(0, x) = u_{1}(x). \end{equation*} $\end{document}

Our goal is to propose sharp conditions on $ \mu $ to obtain a threshold between global (in time) existence of small data Sobolev solutions (stability of the zero solution) and blow-up behaviour even of small data Sobolev solutions.
Definition and process-based classification of caves
Authors: Lazaridis Georgios Theodoros
Published: December 2022

Cave is re-defined in order to be linked to the cave formation processes, to cover the known cave types, to differentiate from porosity and contiguous spaces, to be applied also in a continuum of size and to avoid explorational bias. Despite the scientific basis, the proposed definition remains simple enough to be used by cavers and non-specialists. Following this definition, a classification scheme that is also process-based combines the known cave types. Clustering is based on five levels of classification, from which the first two levels define the major cave categories. The rest of the branching is the result of variation in settings and formation agents. A discussion on various classifications and definitions reveals the non-static character of such schemes that tend to change in relation to the progress of research cave census and improved communication of scientists on previously and new discovered caves.
Implementation of RWP and Gauss Markov Mobility Model for Multi-UAV Networks in Search and Rescue Environment
Authors: Naser Marwa T. , Wheeb Ali H.
Published: December 2022

Future generations of wireless networks are expected to heavily rely on unmanned aerial vehicles (UAVs). UAV networks have extraordinary features like high mobility, frequent topology change, tolerance to link failure, and extending the coverage area by adding external UAVs. UAV network provides several advantages for civilian, commercial, search and rescue applications. A realistic mobility model must be used to assess the dependability and effectiveness of UAV protocols and algorithms.  In this research paper, the performance of the Gauss Markov (GM) and Random Waypoint (RWP) mobility models in multi-UAV networks for a search and rescue scenario is analyzed and evaluated. Additionally, the two mobility models GM and RWP are described in depth, together with the movement patterns they are related with. Furthermore, two-simulation scenarios conduct with help of an NS-3 simulator. The first scenario investigates the effect of UAV Speed by varying it from 10 to 50 m/s. the second scenario investigates the effect of the size of the transmitting packet by varying it from 64 to 1024 bytes. The performance of GM and RWP was compared based on packet delivery ratio (PDR), goodput, and latency metrics. Results indicate that the GM model provides the highest PDR and lowest latency in such high mobility environments.
Knowledge and Perceptions About Mobile E-Commerce Technologies in Kosovo
Authors: Qarkaxhija Jusuf , Prevalla Blerta , Latifi Shpëtim
Published: December 2022

Abstract - The enormous increase of online shopping, sales and online orders is disproportionate to the knowledge of the users of these services. The purpose of this paper is to understand how online shopping and orders are perceived by people who are directly or indirectly involved in online e commerce services. The study utilized questionnaires in the collection of data. Data was analyzed using Excel and percentages. Based on the results of the conducted study, it was revealed that very few people know how to distinguish between online shopping and online orders. The same hypothesis can be used to explain what e-commerce is.
Teachers’ Perspectives on Innovative and Interactive Teaching Methods: Perspective of Mobile Learning
Authors: Latifi Fadil , Kasumi Hysen
Published: December 2022

This study aims to reflect teachers' perspectives on the use of innovative and interactive teaching methods (mobile learning and others) and to present the importance of the application of modern teaching methods by first-level teachers (grades 1-5) and second-level teachers (grades 6-9), in the development of student competencies. The research includes the Anamorava Region in Kosovo which covers an area of ​​650 km2 and has about 200,000 inhabitants. Quantitative methods were used to research this issue, while Likert scale questionnaires were used as a tool for measuring teachers' thoughts and attitudes. The research sample consists of 97 teachers working with first and second-level students.  The results show that teachers do not use a variety of methods while a number of them state that teaching methods are always in coherence with the age and skills of students. A small number of teachers pay special attention to students' prior knowledge. Based on the general data from the research, I have noticed that teachers do not practice enough modern teaching methods to develop students' competencies and promote their activity and creativity.
Négocier collectivement les salaires en entreprise
Authors: Blavier Pierre , Pélisse Jérôme
Published: December 2022

Cet article porte sur les négociations salariales en entreprise dans la France contemporaine, à partir d’exploitations statistiques de l’enquête REPONSE (Relations professionnelles et négociations d’entreprise). S’inscrivant au sein d’une vaste littérature française et internationale, qu’il ne s’agit pas de recenser mais de compléter de manière originale, il interroge les prises que se donnent (ou non) les salarié·es pour négocier à ce sujet avec leurs employeur·ses, et si le fait de se mobiliser influe sur l’issue des négociations. En premier lieu, il montre que la négociation formalisée et collective des rémunérations est complètement absente de nombreux établissements. À partir d’un recodage de réponses à une question ouverte posée aux représentant·es des directions et des salarié·es, l’article éclaire les raisons énoncées par les un·es et les autres pour expliquer l’absence de tenue de ces négociations et souligne l’importance de la non-mobilisation des salarié·es, mais aussi du refus d’une partie des directions de négocier. S’intéressant dans un second temps aux situations où il y a, au contraire, négociation, la contribution montre que lorsque les salarié·es se mobilisent par des pétitions, débrayages, grèves ou manifestations au moment de ces négociations, la direction déclare beaucoup plus souvent dans ce cas plutôt que dans celui où il n’y a pas eu de mobilisation que, sans ces négociations, sa décision sur les salaires aurait été différente.
Polylactic Acid Nonwoven Fabric-Based Plant Culture Medium Using Improved Melt-Blowing Method
Authors: Yamamoto Marina , Wu Wei , Hirogaki Toshiki , Aoyama Eiichhi , Sota Hiroyoshi
Published: December 2022

In a previous study, soil substitutes, such as polyester fiber and rockwool medium, were used as solid medium for plant cultivation. However, these media are not biodegradable and aggravate environmental pollution. Furthermore, as they disintegrate into microplastics, they can damage and destroy ecosystems. Therefore, replacements with biodegradable materials are necessary. To that end, an improved melt-blowing method has been developed previously that facilitates a stable manufacturing process for the mass production of semi-microfiber nonwoven fabrics of lipophilic polypropylene. In addition, high oil adsorption was achieved based on the trial-produced nanofibers. In the present report, we focused on the hydrophilic and biodegradable features of polylactic acid (PLA) produced by the improved melt-blowing method and examined its application as a fiber-aggregate-based culture medium. Several plants were cultivated using trial-produced PLA nanofibers, and the influence of different fiber diameters and bulk densities on moisture content and matric potential was also investigated. The results show that PLA fibers can be used to successfully cultivate plants.
Effect of Stirring Rate and Functionalization Method on the Synthesis of Spherical Silica Particles Encapsulated Amine Moieties
Authors: Abdul Rahim Abdul Rahman , Aliman Atiqah Husna , Gunasegaran Ganesan , Johari Khairiraihanna , Rabat Nurul Ekmi , Mohd Amin Khairatun Najwa , Shaharun Maizatul Shima , Song Show Tien
Published: December 2022

Silica nanocapsules (SiNC) utilization as adsorbent in pollution control have gained much attraction as SiNC are highly porous, have high surface area, excellent thermal and mechanical stability and a tuneable physicochemical property. In this study, microemulsion technique was used to synthesized SiNC. Effect of stirring rate as well as the effect of different method of amine functionalization i.e. grafting, wet impregnation, co-condensation, on the physicochemical properties of SiNC were studied. The stirring rate have significant effect on the physical properties of the SiNC. As the stirring speed increased from 200 rpm to 600 rpm, the particle diameter and the surface area decreases, 695 to 600 nm and 773 to 654 m2/g, respectively. The SEM and TEM analysis shows higher stirring rate produced surface with extensive damage while lower stirring rate produced a smoother surface. Different functionalization method affected the amount of amine groups incorporated into the SiNC. The FTIR spectra shows that the impregnation method incorporates higher amount of amine as indicated by the higher peak transmissions in the region 3450 – 3250 cm-1. However, amine functionalization of SiNC resulted in decrease of surface area as surface pore of the SiNC were occupied by the amine moieties’ molecules. The optimum condition for synthesizing amine functionalized SiNC were determined to be at stirring rate of 450 rpm through wet impregnation method as the SiNC produced were of spherical shape with smooth surface, and a relatively high surface area of 695 m2/g and pore diameter of 601 nm. These physicochemical characteristics shows the synthesized amine functionalized SiNC have promising qualities for application as adsorbents.
Performance Studies of TiO2 Catalyst for Phenol Degradation
Authors: Hanafi Muhammad Farhan , Hassan Nazatulshima , Sapawe Norzahir
Published: December 2022

Water is a valuable source that directly impact human life. The expansions of globalization as well industrialization led to water pollution, thus became worsen over the time. The issue of degradation of organic and inorganic pollutants become very serious from ecological point of view, especially organic pollutants in industrial effluents due to difficult to be remove by means of conventional technologies. Phenol compound in wastewater effluents can threatens the human and public health, water supplies, and has negative impacts on the ecosystems. In addition, the TiO2 semiconductor metal oxide provides a great interest among researchers to overcome this problem via photocatalytic reaction under advanced oxidation processes (AOPs). The AOPs mainly used the hydroxyl radicals to attack and destroy a wide range of harmful dyes into non-toxic products, CO2 and water at ambient temperature. Therefore, in this study, the synthesized TiO2 catalyst gave the remarkable degradation of phenol up to 96.3%, meanwhile the commercial TiO2 only show 80.3%, in respectively under similar optimum conditions of 10 mg/L at pH 5 with dosage of 1.25 g/L within 90 mins time reaction under light irradiation.
Electrochemical Study of Al2O3/ Industrial Waste Coating on Mg Substrate via Sol-Gel Method
Authors: Salleh Siti Hawa , Malek Rohaya Abdul , Che Abdullah Salmie Suhana , Zengin Huseyin , Abidin Azri Zainal
Published: December 2022

Industrial waste is primarily handled using landfills in both developed and developing countries. While there has been a significant rise in solid waste reduction, reuse, and recycling, landfill disposal will inevitably remain the most commonly used form of waste management. Although landfilling provides an economic means of waste disposal, it can lead to environmental degradation by releasing various contaminants if not managed properly. In this work, industrial waste from electrostatic precipitators (ESP) will be beneficial for the production of coatings on metal substrates. The sol-gel coating method have been attempted for deposition on pure Mg samples. Using the potentiodynamic polarization (PDP) method and hydrogen evolution analysis, the effectiveness of the coating, which is the corrosion resistance was analyzed. A minimal application of Tetraethyl orthosilicate (TEOS) in the ESP dust solution has been shown to substantially reduce the corrosion rate of Mg. This is likely due to the impact of its concentrations through the sol-gel process that could increase the size of the particle shape or growth.
Evaluation of the efficacy of hematoxylin and eosin stain when xylene is completely replaced by turpentine or kerosene oil – A comparative study for oral tissues
Authors: Singh Priyanka , Dave Aparna , Arora Manpreet , Madan Pulin Saluja , Rai Radhika
Published: December 2022

Background:

Microscopic examination of cells and tissues requires the preparation of very thin and good-quality sections mounted on glass slides and appropriately stained to demonstrate normal and abnormal structures. Before this step, the tissue must undergo preparatory treatment known as tissue processing. The various stages of tissue processing are dehydration, clearing, impregnation, and embedding, each with a particular duration for proper completion of the process. Xylene is the most frequently used clearing agent whose carcinogenic potential is well documented. Hence, attempts were made to substitute xylene with a biosafe clearing agent. The present study aimed to evaluate and compare the efficacy of hematoxylin and eosin stain (H and E stain) when xylene is completely replaced by turpentine or kerosene oil.

Materials and Methods:

A total number of 50 tissue samples were taken in the study, which included 40 study samples and 10 controls. All the samples were randomly separated into three groups and routine tissue processing and H and E staining were performed. The result was further subjected to statistical analysis by using Fisher’s exact test. Group-1: Ten tissue samples were processed and H and E staining was done in xylene. Group-2: Twenty tissue samples were processed and H and E staining was done in turpentine oil. Group-3: Twenty tissue samples were processed and H and E staining was done in kerosene oil.

Results:

Nuclear staining, cell morphology, and uniformity of staining were better in kerosene sections, while cytoplasmic and clarity of staining of turpentine sections were comparable with xylene sections.

Conclusion:

Turpentine and kerosene as clearing agents can be used in the future with certain modifications in their concentration and routine staining protocol.
Analysis of the intellectual and social structure of health system response plan to earthquake studies adopting word co-occurrence and narrative approaches
Authors: Mousavi Seyed Hossein , Khankeh Hamidreza , Atighechian Golrokh , Yarmohammadian Mohammad H. , Memarzadeh Mehrdad
Published: December 2022

BACKGROUND AND AIM:

Earthquake is a natural disaster severely affecting the societies' health, hygiene, and welfare as such the most effective method to respond to its damages is to develop a readiness plan. This study aimed to discover thematic patterns and co-author relationships extracted from relevant publications to plan an earthquake response.

MATERIALS AND METHODS:

This descriptive–analytical study adopted the scientometric approach and used word co-occurrence and social network analysis. The published articles indexed in PubMed were retrieved from 1970 to 2021 using a combination of keywords “earthquake and response.” The data were analyzed in VOSviewer, UCINET, and NetDraw software.

RESULTS:

The following six thematic clusters with a social map were extracted: Initial response of the healthcare system, response to probabilistic risks after the hazard, response to mental health and community resilience, response to public health, response to post-traumatic stress disorders, and staff's response to the needs assessment and continuity of diagnostic treatment services. Moreover, social network analysis revealed the great impact of Japanese and Chinese authors and institutes.

CONCLUSION:

The present study detected many gaps in the literature on earthquake response, which can contribute to developing a general framework to prepare integrated healthcare earthquake response plans to promote the performance of this system.
The effect of holding a workshop (group and face-to-face training method) on nutrition adjustment on anthropometric indices in children with chronic liver disease
Authors: Namjou Zahra , Jafari Seyed Ali , Rezaeian Aramesh , Ghayour-Mobarhan Majid , Shahraki Moghadam Elham
Published: December 2022

BACKGROUND:

Complications of chronic liver disease (CLD) in children play an important role in mortality and disability. This disease is one of the health problems of the country and due to its chronic and irreversible disease, it needs care and treatment education programs. Therefore, this study was performed to determine the effect of nutrition adjustment training program on anthropometric indices in children with CLD.

MATERIALS AND METHODS:

This clinical trial study was performed on 75 children (45 in the intervention group and 30 in the control group) with CLD in the nutrition clinic of Ghaem Educational-Research Center in Mashhad. Children and caregivers with inclusion criteria entered the study after completing written consent. Anthropometric indices (abdominal circumference, body water level, body fat, height, weight, body mass index, arm circumference) were measured and recorded in children at the beginning of the study. Children and their caregivers were randomly divided into control and intervention groups. The intervention group underwent nutritional adjustment (calculation of energy and carbohydrates, lipids and proteins, vitamins and minerals, calculation and selection of diet) training (face to face) for 6 sessions (each session 90–120 min, three times a week for 2 weeks). Twelve weeks after the start of the study, children in both intervention and control groups were evaluated for anthropometric indices. The collected data were analyzed by SPSS software version 16 and descriptive and analytical statistical tests (Mann–Whitney and Wilcoxon).

RESULTS:

The results of Wilcoxon statistical test showed that children in the intervention group at the end of the study compared to the beginning of the study had significant changes in scores around the abdomen (P = 0.001), total body water (P = 0.009), total fat (0.001 > P), height (P = 0.001), weight (P < 0.001), body mass index (P < 0.001), arm circumference (P < 0.001). The mean scores at the end of the study increased compared to the beginning of the study, but the mean scores of the studied indices in the control group did not change significantly.

CONCLUSION:

The results of this study showed that diet adjustment training program can be effective on anthropometric indices of children with CLD. For this purpose, the use of this educational method is recommended to improve the anthropometric indices of these children.
Behavioral interventions towards knowledge and awareness of reproductive cancer care
Authors: Gadiraju Padmaja , Dehury Ranjit Kumar , Singh Punam , Vanlalhruaii C. , Dehury Parthsarathi , Devaraju Kadari , Behera Sangita
Published: December 2022

BACKGROUND:

The behavioral aspects of human beings influence the incidences of cancer cases directly and indirectly. The factors like positive thinking and motivation were found to change the behavior toward knowledge and awareness of cancer. The main objective of the study is to assess the knowledge and awareness of select Indians about reproductive cancer.

MATERIALS AND METHODS:

The online survey method assessed various components of knowledge and awareness about reproductive cancer. A Google Form has been distributed through social media platforms such as e-mail, Instagram, Facebook, and WhatsApp. The coded data has been computed in SPSS (version 25) by IBM (USA) for the analysis. Univariate and bivariate data analysis has been drawn to justify the objective.

RESULTS:

Nearly 68 percent of the respondents were aware of reproductive cancer. Among them, 17 percent know about cervical cancer, and 12.5 percent have awareness about breast cancer. Electronic and print media (41.2 percent) were major sources of information about reproductive cancer. Nearly 48 percent of respondents reported that multiple sexual partners and poor sexual hygiene were risk factors for reproductive cancer. Around 57 percent of respondents reported reproductive cancer is preventable, 59 percent knew about cancer screening, and 63.5 percent knew the treatment process. The gender of the respondents was associated (p-value = 0.002) with awareness of reproductive cancer. It has been found that there is a significant association between knowledge of screening tests and the treatment process of reproductive cancer. The marital status of respondents is strongly associated (p-value = 0.000) with the awareness of reproductive cancer.

CONCLUSION:

The factors like knowledge of reproductive cancer and awareness proceed as an important role in cancer prevention. A gender-neutral cancer awareness program is needed to increase cancer awareness irrespective of marital status.
Learning innovation in community medicine teaching
Authors: Taywade Manish , Pal Debkumar , Sahoo Bimal Kumar
Published: December 2022

The interaction between medical students and frontline healthcare workers is one of the crucial components of community medicine. The interaction of medical students with frontline healthcare workers provides multiple opportunities. Medical students like to understand their job responsibilities and their involvement in implementing the various national health programs at the community level. Innovation is required to train our medical students better and enhance their learning. A learning and teaching innovation was developed by us to provide insight into the various roles and involvement of frontline healthcare workers in the community. One innovation is the A-Z activity calendar of frontline healthcare workers in teaching and learning in medical education.
Perception of Hand Hygiene Practice among Eye Care Workers in Onitsha, Nigeria
Authors: Uba-Obiano Chizoba U. , Onyiaorah Adaora A. , Akudinobi Cyriacus U. , Okpala Nonso E. , Ezenwa Adanma C. , Nwosu Sebastian N.N.
Published: December 2022

Objectives:

To determine the perception of hand hygiene practice by eye care workers of a tertiary hospital in Nigeria.

Methods:

This was a cross-sectional study of eye health workers at a tertiary hospital in Nigeria using the WHO Hand Hygiene Perception questionnaire to obtain information on different aspects of hand hygiene perception. Responses were graded as good (≥75%); moderate (50–74%); poor (<50%). Information obtained was analyzed.

Results:

Fifty-three eye care workers comprising 11 (20.8%) males and 42 (79.2%) females with age range 28 to 68 years; mean of 43.8 ± 9.0 years. Average work experience was 18.5 ± 9.6 years. Nurses and doctors constituted 47 (88.7%) participants. Mean overall perception score was 36.2 ± 9.0 (or 61.4%). Hand hygiene practice perception was good in 11 (20.7%), moderate in 32 (60.4%), and poor in 10 (18.9%) participants. Doctors had significantly higher mean score (39.7 ± 8.0) than nurses (33.5 ± 8.0) (P = 0.04). Fifty-one (96.2%) had soap and water at the service point but these were not always available all the time to 40 (75.5%) participants. Alcohol-based hand sanitizer was unavailable to 41 (77.4%); 13 (24.5%) participants had posters of hand washing at their service points. Fifty (94.3%) participants would want hospital management to lend greater support to hand hygiene practice.

Conclusions:

Hand hygiene practice perception was only moderate among the participants. Institutional support via frequent training and reminders on hand hygiene, and steady water and soap supply at service points would help to improve hand hygiene perception and practice among eye care workers.
Two variants of Lempel - Ziv test for binary sequences
Authors: Mikhailov Vladimir Gavrilovich , Kruglov Vasilii Igorevich
Published: December 2022

Пусть гипотеза $H_0$ состоит в том, что элементы последовательности $X_1,\ldots,X_n$ являются независимыми случайными величинами с равновероятным распределением на множестве $\{0,1\}$. Предложены два критерия согласия с гипотезой $H_0$, основанные на статистике Лемпеля - Зива $W(T)$, построенной по блокам длины $T$. Для первого критерия последовательность длины $n=2mT$ разбивается на $2m$ блоков длины $T$, для этих блоков вычисляются значения $W_1(T),\ldots, W_{2m}(T)$ статистики Лемпеля - Зива. Первый критерий основан на статистике $\tilde W(2mT)=\sum_{k=1}^m W_k(T)-\sum_{k=m+1}^{2m}W_k(T)$, ее распределение при гипотезе $H_0$ симметрично относительно нуля. Для второго критерия последовательность длины $n=mrT$ разбивается на $mr$ блоков длины $T$. Для этих блоков вычисляются значения $W_{i,j}(T)$ ($i\in\{1,\ldots,m\}, j\in\{1,\ldots,r\}$) статистики Лемпеля - Зива. Второй критерий использует значение $\tilde \chi^2(mrT)=\max_{1\le k\le m} \chi_k^2(rT)$, где $\chi_k^2(rT)$ - статистика хи-квадрат, соответствующая $W_{k,1}(T),\ldots, W_{k,r}(T).$ Для обоих критериев найдены предельные распределения статистик, а для первого критерия указана оценка скорости сходимости к предельному нормальному распределению. Приведены формулы для вычисления распределения $W(T)$.