bluuebunny/crossref_metadata_2025 huggingface dataset:
Meteorites and the RNA World: Synthesis of Nucleobases in Carbonaceous Planetesimals and the Role of Initial Volatile Content
Authors: Paschek Klaus , Semenov Dmitry A. , Pearce Ben K. D. , Lange Kevin , Henning Thomas K. , Pudritz Ralph E.
Published: January 2023

Prebiotic molecules, fundamental building blocks for the origin of life, have been found in carbonaceous chondrites. The exogenous delivery of these organic molecules onto the Hadean Earth could have sparked the polymerization of the first RNA molecules in Darwinian ponds during wet-dry cycles. Here, we investigate the formation of the RNA and DNA nucleobases adenine, uracil, cytosine, guanine, and thymine inside parent body planetesimals of carbonaceous chondrites. An up-to-date thermochemical equilibrium model coupled with a 1D thermodynamic planetesimal model is used to calculate the nucleobase concentrations. Different from previous studies, we assume the initial volatile concentrations more appropriate for the formation zone of carbonaceous chondrite parent bodies. This represents more accurately cosmochemical findings that these bodies have formed inside the inner, ∼2–5 au, warm region of the solar system. Due to these improvements, our model represents the concentrations of adenine and guanine measured in carbonaceous chondrites. Our model did not reproduce per se the measurements of uracil, cytosine, and thymine in these meteorites. This can be explained by transformation reactions between nucleobases and the potential decomposition of thymine. The synthesis of prebiotic organic matter in carbonaceous asteroids could be well explained by a combination of (i) radiogenic heating, (ii) aqueous chemistry involving a few key processes at a specific range of radii inside planetesimals where water can exist in the liquid phase, and (iii) a reduced initial volatile content (H2, CO,

HCN

, and CH2O) of the protoplanetary disk material in the parent body region compared to the outer region of comets.
The Origin of Star-forming Rings in S0 Galaxies
Authors: Tous J. L. , Domínguez-Sánchez H. , Solanes J. M. , Perea J. D.
Published: January 2023

Spatially resolved integral field spectroscopic maps in a sample of 532 S0 galaxies from the MaNGA survey have unveiled the existence of inner rings (〈R〉 ∼ 1 R
e) betraying ongoing star formation in a number of these objects. Activity gradients averaged over bins of galactocentric radius up to ∼1.5 R
e have been measured in the subspace defined by the first two principal components of the optical spectra of these galaxies. We find that the sign of the gradients is closely related to the presence of such rings in the spectral maps, which are especially conspicuous in the equivalent width of the Hα emission line, EW(Hα), with a fractional abundance—21%–34%—notably larger than that inferred from optical images. While the numbers of S0s with positive, negative, and flat activity gradients are comparable, star-forming rings are largely found in objects for which quenching proceeds from the inside out, in good agreement with predictions from cosmological simulations studying S0 buildup. Assessment of these ringed structures indicates that their frequency increases with the mass of their hosts, that they have shorter lifetimes in galaxies with ongoing star formation, that they may feed on gas from the disks, and that the local environment does not play a relevant role in their formation. We conclude that the presence of inner rings in EW(Hα) is a common phenomenon in fully formed S0s, possibly associated with annular disk resonances driven by weakly disruptive mergers preferentially involving a relatively massive primary galaxy and a tiny satellite strongly bound to the former.
Black Hole Images as Tests of General Relativity: Effects of Spacetime Geometry
Authors: Younsi Ziri , Psaltis Dimitrios , Özel Feryal
Published: January 2023

The images of supermassive black holes surrounded by optically thin, radiatively inefficient accretion flows, like those observed with the Event Horizon Telescope, are characterized by a bright ring of emission surrounding the black hole shadow. In the Kerr spacetime, this bright ring, when narrow, closely traces the boundary of the shadow and can, with appropriate calibration, serve as its proxy. The present paper expands the validity of this statement by considering two particular spacetime geometries: a solution to the field equations of a modified gravity theory and another that parametrically deviates from Kerr but recovers the Kerr spacetime when its deviation parameters vanish. A covariant, axisymmetric analytic model of the accretion flow based on conservation laws and spanning a broad range of plasma conditions is utilized to calculate synthetic non-Kerr black hole images, which are then analyzed and characterized. We find that in all spacetimes: (i) it is the gravitationally lensed unstable photon orbit that plays the critical role in establishing the diameter of the rings observed in black hole images, not the event horizon or the innermost stable circular orbit, (ii) bright rings in these images scale in size with, and encompass, the boundaries of the black hole shadows, even when deviating significantly from Kerr, and (iii) uncertainties in the physical properties of the accreting plasma introduce subdominant corrections to the relation between the diameter of the image and the diameter of the black hole shadow. These results provide important new theoretical justification for using black hole images to probe and test the spacetimes of supermassive black holes.
VTSCat: The VERITAS Catalog of Gamma-Ray Observations
Authors: Acharyya A. , Adams C. B. , Archer A. , Bangale P. , Bartkoske J. T. , Batista P. , Benbow W. , Brill A. , Brose R. , Buckley J. H. , Capasso M. , Christiansen J. L. , Chromey A. J. , Daniel M. K. , Errando M. , Falcone A. , Farrell K. A , Feng Q. , Finley J. P. , Foote G. M , Fortson L. , Furniss A. , Gallagher G. , Gent A. , Giuri C. , Gueta O. , Hanlon W. F , Hanna D. , Hassan T. , Hervet O. , Hoang J. , Holder J. , Hughes G. , Humensky T. B. , Jin W. , Kaaret P. , Kertzman M. , Kieda D. , Kleiner T. K. , Korzoun N. , Krennrich F. , Kumar S. , Lang M. J. , Lundy M. , Maier G. , McGrath C. E , Millard M. J , Mooney C. L. , Moriarty P. , Mukherjee R. , Nieto D. , Nievas-Rosillo M. , O’Brien S. , Ong R. A. , Otte A. N. , Pandel D. , Park N. , Patel S. R. , Patel S. , Pfrang K. , Pichel A. , Pohl M. , Prado R. R. , Pueschel E. , Quinn J. , Ragan K. , Reynolds P. T. , Ribeiro D. , Richards G. T. , Roache E. , Rovero A. C. , Rulten C. , Ryan J. L. , Sadeh I. , Santander M. , Schlenstedt S. , Sembroski G. H. , Shang R. , Splettstoesser M. , Stevenson B. , Tak D. , Vassiliev V. V. , Wakely S. P. , Weinstein A. , Williams D. A. , Williamson T. J , Angelini L. , Basu-Zych A. , Sabol E. , Smale A.
Published: January 2023

The ground-based gamma-ray observatory Very Energetic Radiation Imaging Telescope Array System (VERITAS, https://veritas.sao.arizona.edu/) is sensitive to photons of astrophysical origin with energies in the range between ≈85 GeV and ≈30 TeV. The instrument consists of four 12 m diameter imaging Cherenkov telescopes operating at the Fred Lawrence Whipple Observatory in southern Arizona. VERITAS started four-telescope operations in 2007 and collects about 1100 hr of good-weather data per year. The VERITAS collaboration has published over 100 journal articles since 2008 reporting on gamma-ray observations of a large variety of objects: Galactic sources like supernova remnants, pulsar wind nebulae, and binary systems; extragalactic sources like star-forming galaxies, dwarf-spheroidal galaxies, and highly variable active galactic nuclei. This note presents VTSCat: the catalog of high-level data products from all VERITAS publications.
Efficacy and safety of Sinovac vaccine administered in patients undergoing hemodialysis
Authors: Akin Davut , Ozmen Sehmus , Caliskan Ahmet , Sari Tugba
Published: January 2023

Introduction: COVİD-19 disease is more serious and fatal in patients on dialysis treatment due to their immunosuppressive status. In this study, we aimed to evaluate the protection and safety of Sinovac vaccine, which is an inactivated vaccine, in patients undergoing hemodialysis.
Methodology: A control group consisting of 220 hemodialysis patients (HD group) and 648 healthcare professionals who were healthy in our institution were included in the study. Quant II IgG anti-Spike antibody was measured 3 weeks after two doses of Sinovac vaccine were administered to both groups.
Results: The antibody response after two doses of Sinovac vaccine was 85.2% in the HD group and 99.8% in the control group. The mean antibody level before vaccination in the HD group was 3.5 ± 7.2 AU/mL and increased significantly 3 weeks after two doses of vaccine (mean 751 ± 1196 AU/mL). The control group’s mean antibody level after vaccination was 1723 ± 1878 AU/mL. The mean antibody level after vaccination in the control group was significantly higher than the HD group (p < 0.0001). Despite higher levels of anti-Spike antibodies in the control group, post-vaccination antibody response was acceptable in both HD and control groups. The HD group was significantly older (mean 64 ± 12 years) than the control group (36 ± 10 years) (p < 0.0001).
Conclusions: Although dialysis patients are immunocompromised, and some may not develop antibodies to the virus as strongly as healthy people, this study revealed that dialysis patients developed significant amounts of antibodies. Being old or on dialysis is an independent predictor of low antibody response to the Sinovac vaccine.
Begonia fimbristipula subsp. siamensis (sect. Diploclinium, Begoniaceae), a new taxon of the megadiverse genus endemic to Thailand
Authors: Radbouchoom Sirilak , Phutthai Thamarat , Schneider Harald
Published: January 2023

The genus Begonia has not only been recognised to be one of the mega-diverse plant genera but also as one found to comprise many undiscovered species. In particular, the increase of extensive field surveys in tropical regions of Southeast Asia has added to the discovery of many new species that are often found only in a few localities. In this study, the new taxon Begonia fimbristipula subsp. siamensissubsp. nov. from Thailand is described. The Thailand accessions are highly similar in their morphology to accessions of B. fimbristipula from southern China but differ in their tuber shape, peduncle trichomes, petiole trichomes and number of female tepals. The new taxon has been found only in the northern parts of Thailand occurring at elevations above 1,300 meters. The new findings not only contribute to our knowledge of the plant diversity of Thailand but provide also critical information contributing to the protection of this species. In China, this species is endangered which is of special concern given its utilisation as a medical herb in traditional Chinese medicine. Considering IUCN Red List Categories, the new subspecies is considered to be Vulnerable. The disjunct distribution of the two subspecies of B. fimbristipula encourages urgently needed comparative taxonomic studies across the Indo-Burma biodiversity hotspot.
Licaria ramiroi (Lauraceae), a new species from Western Mexico
Authors: Cuevas Guzmán Ramón , Sánchez-Rodríguez Enrique V. , Morales-Arias José Guadalupe
Published: January 2023

Licaria ramiroi, a species endemic to western Mexico, is described and illustrated. The ascription of the new species to Licaria is analysed. It is classified in the subgen. Licaria and is most closely related to L. triandra and L. siphonantha from which it differs by its glabrous vegetative and floral structures, stamens mainly with free anthers and the inner wall of the receptacle sericeous. According to the IUCN criteria, the species is classified as critically endangered.
Soumises, les filles en bac pro ?
Authors: Depoilly Séverine
Published: January 2023

À partir d’une enquête ethnographique conduite dans un lycée professionnel agricole, dans une filière accueillant majoritairement des filles et au recrutement populaire, cet article propose de s’intéresser aux manières variées et parfois hétérodoxes dont les lycéennes s’approprient leur trajectoire scolaire et leurs expériences de formation. Nous montrons que loin d’être dociles ou soumises, elles mettent à distance les jugements scolaires portés sur elles et ce, de deux manières au moins : par l’adhésion forte au projet de formation en LP qui permet la valorisation d’autres manières de faire et d’apprendre à l’école ; par la mise à distance des enjeux scolaires et de formation, et par la valorisation d’un quant-à-soi adolescent.
Du collectif avec des femmes
Authors: Masó Joana
Published: January 2023

L’asile de Saint-Alban-sur-Limagnole en Lozère est l’un des lieux où se sont développées, entre les années 1930 et 1960, des pratiques expérimentales psychiatriques à la fois politiques et artistiques, en particulier sous la direction du psychiatre catalan exilé François Tosquelles. Dans cette histoire devenue mythique, la présence des grands hommes a souvent occulté, d’une part, l’hôpital comme lieu de vie et de soins collectif et, d’autre part, le travail des femmes qui en dessinent les contours nouveaux. Cet article suit les traces de femmes dont le rôle a été passé sous silence dans la transmission de la psychothérapie institutionnelle et la « géo-psychiatrie » : des psychiatres, telles Agnès Masson et Germaine Balvet, ainsi que des travailleuses du sexe et des religieuses qui sont alors pleinement reconnues comme soignantes. Tosquelles a ainsi pu s’appuyer, non seulement sur son expérience de psychiatre pendant la guerre civile espagnole, mais aussi sur les pratiques institutionnelles et thérapeutiques de ces femmes. Il s’agit donc d’exhumer un pan d’histoire refoulé de la psychiatrie à la lumière de leur manière d’incarner un soin politique.
L’égalité au risque de la différence : la complication démocratique
Authors: Vibert Stéphane
Published: January 2023

Les sociétés modernes pluralistes doivent nécessairement affronter, d’une façon ou d’une autre, le « paradoxe de l’identité démocratique » : la reconnaissance du pluralisme culturel et de la diversité communautaire, réinterprétés comme revendication subjective à l’authenticité, entre en potentielle contradiction avec l’affirmation de l’égalité des individus, assurée par la loi à partir d’une secondarisation des traits particuliers propres à chaque personne. Le slogan de « l’égalité dans la différence » lancé afin de répondre à ce défi théorique et politique ne peut masquer la difficulté de penser la nature du « monde commun » accueillant des mobilisations identitaires potentiellement contradictoires et antagonistes : d’une part, toute identité collective se prête à une essentialisation réductrice ; d’autre part, certaines minorités illibérales instrumentalisent les droits subjectifs afin d’en restreindre la nature émancipatoire. C’est essentiellement pour mieux penser cet écueil théorique que l’anthropologue Louis Dumont a insisté sur la nécessité, contextualisée et négociée, de hiérarchiser les revendications d’égalité et de différence au sein des sociétés démocratiques, notamment en soulignant la claire distinction entre ces deux types de reconnaissance distincts, malgré la confusion consistant à les assimiler sous un même registre de droits et de justice.
La paradiplomatie de Ramzan Kadyrov au Moyen-Orient
Authors: Ratelle Jean-François
Published: January 2023

Cet article analyse l’importance du religieux dans la paradiplomatie tchétchène au Moyen-Orient. Il examine tout d’abord le développement de la paradiplomatie tchétchène en expliquant son lien avec le programme de tchétchénisation du gouvernement russe. L’article démontre que cette paradiplomatie a été développée par Moscou dans le but de fragmenter le soutien international aux insurgés à la fin de la deuxième guerre de Tchétchénie, de présenter la situation en Tchétchénie comme étant régularisée et d’effacer l’image de puissance coloniale anti-musulmane accolée à la Russie. Par la suite, l’article explique comment Ramzan Kadyrov a réussi à instrumentaliser cette paradiplomatie pour soutenir son culte de la personnalité et promouvoir son idéologie politico-religieuse, qui juxtapose les concepts de patriotisme russe, de traditions tchétchènes et soufies et un rigorisme islamique conservateur provenant du Moyen-Orient. Enfin, l’analyse souligne comment le leader tchétchène utilise ce rôle d’ambassadeur informel dans le monde arabe et au Moyen-Orient pour renforcer sa position politique et religieuse au Nord-Caucase et en Russie.
L’alignement de l’église orthodoxe russe sur le bellicisme du Kremlin
Authors: Philippenko Grégoire
Published: January 2023

Depuis la fin de l’URSS, la doctrine de la guerre de l’Église orthodoxe russe a connu une évolution belliciste, pour culminer par un soutien à l’invasion de l’Ukraine du patriarche Kirill. Ceci est le résultat d’un alignement de la doctrine de l’Église sur celle de l’État. En effet, malgré la formalisation d’une doctrine de la « guerre juste » par l’Église en 2000, de nombreux symboles et discours ont contribué à une réinterprétation belliciste de cette doctrine. Cela est dû à l’influence du courant conservateur au sein de l’Église, qui bénéficie de liens privilégiés avec l’État. Ainsi, les positions officielles de l’Église ont justifié les guerres menées par la Russie depuis 2008, à travers l’exaltation de l’engagement militaire, et la sacralisation de la défense de la patrie.
An Adolescent Girl with Acute-on-Chronic Abdominal Pain
Authors: Yarbrough Andrea , Kramolis Kali , Patel Nehal
Published: January 2023

We present an 11-year-old pediatric patient with acute-on-chronic abdominal pain found to have a large intra-abdominal abscess with a concomitant dermoid cyst. Acute-on-chronic abdominal pain has one of the broadest and, in our case, ever-changing differential diagnoses. Exploratory laparoscopy revealed a severe pelvic inflammatory process with a large abscess and extensive omental and bowel adhesions, a left ovarian cyst, a shortened appendix with thickened tip, and purulent fluid in the cul-de-sac. These findings suggested a ruptured appendix leading to a large abscess with adjacent ovarian dermoid cyst, and an appendectomy was performed. Our patient responded well to continued intravenous antibiotics, and her drain was removed on the day of discharge. She was sent home with an additional 2 weeks of oral cefdinir and metronidazole. Follow-up ultrasound showed dramatic cyst resolution, and no further intervention was needed.

[
Pediatr Ann
. 2023;52(1):e36–e38.]
The Impact of Residual Retinal Fluid Following Intravitreal Anti-Vascular Endothelial Growth Factor Therapy for Diabetic Macular Edema and Macular Edema Secondary to Retinal Vein Occlusion: A Systematic Review
Authors: Patil Nikhil S. , Mihalache Andrew , Dhoot Arjan S. , Popovic Marko M. , Muni Rajeev H. , Kertes Peter J.
Published: January 2023

The association between residual retinal fluid and visual acuity for diabetic macular edema (DME) and macular edema (ME) secondary to retinal vein occlusion (RVO) is not well established. We conducted a systematic literature search for peer-reviewed articles reporting on visual acuity stratified by subretinal fluid (SRF), intraretinal fluid (IRF), or any retinal fluid at final follow-up after intravitreal anti-vascular endothelial growth factor therapy injection for treatment of DME or ME secondary to RVO. Two observational studies on ME secondary to RVO and one study for DME found no significant differences between eyes with and without residual retinal fluid for final BCVA. One randomized controlled trial (RCT) found that eyes with residual retinal fluid had significantly worse final best-corrected visual acuity in ME secondary to RVO, whereas another RCT found no significant difference for DME. There is a paucity of evidence examining the impact of residual retinal fluid on visual acuity in DME and ME secondary to RVO. The limited evidence suggests that aggressive fluid resolution is worthwhile.

[
Ophthalmic Surg Lasers Imaging Retina
2023;54:50–58.]
A Comparison of Peel-Induced Maculopathy Following ILM Peeling Using a Microvacuum Pick Versus Forceps
Authors: Thomas Akshay S. , Thomas Mridul K. , Davis Emily C. , Fowler Samuel , Schneider Eric W. , Recchia Franco M. , Awh Carl C.
Published: January 2023

Objective:

To compare peel-induced maculopathy (PIM) using surgical forceps versus the microvacuum pick (MVP).

Methods:

Consecutive eyes undergoing internal limiting membrane (ILM) peeling using either the MVP or forceps were assessed. En face optical coherence tomography (OCT) images at the level of the nerve fiber layer were generated for 6-month postoperative visit. The percentage of the imaged area showing PIM was termed the PIM index. PIM severity was additionally measured using a qualitative PIM severity scale.

Results:

Seventy-four consecutive eyes underwent ILM peeling with either the MVP (36/74; 49%) or forceps (38/74; 51%). At month-6 postoperatively, the mean PIM index for forceps was 7.7% vs 4.7% for the MVP (
P
< 0.001, R
2
= 0.15). At 6 months, 26/38 eyes (68.5%) in the forceps group had either moderate or severe PIM compared to 12/36 eyes (33.3%) in the MVP group (
P
= 0.001).

Conclusions:

ILM peeling with the MVP resulted in lower PIM severity compared to forceps.

[
Ophthalmic Surg Lasers Imaging Retina
2023;54:37–42.]
Distance and similarity measures of intuitionistic fuzzy hypersoft sets with application: Evaluation of air pollution in cities based on air quality index
Authors: Saqlain Muhammad , Riaz Muhammad , Imran Raiha , Jarad Fahd
Published: January 2023

Decision-making in a vague, undetermined and imprecise environment has been a great issue in real-life problems. Many mathematical theories like fuzzy, intuitionistic and neutrosophic sets have been proposed to handle such kinds of environments. Intuitionistic fuzzy sets (IFSS) were formulated by Atanassov in 1986 and analyze the truth membership, which assists in evidence, along with the fictitious membership. This article describes a composition of the intuitionistic fuzzy set (IFS) with the hypersoft set, which assists in coping with multi-attributive decision-making issues. Similarity measures are the tools to determine the similarity index, which evaluates how similar two objects are. In this study, we develop some distance and similarity measures for IFHSS with the help of aggregate operators. Also, we prove some new results, theorems and axioms to check the validity of the proposed study and discuss a real-life problem. The air quality index (AQI) is one of the major factors of the environment which is affected by air pollution. Air pollution is one of the extensive worldwide problems, and now it is well acknowledged to be deleterious to human health. A decision-maker determines ϸ = region (different geographical areas) and the factors$ \{\mathrm{ᵹ}=human~~activiteis,\mathrm{Ϥ}=humidity~~level,\zeta =air~~pollution\} $ which enhance the AQI by applying decision-making techniques. This analysis can be used to determine whether a geographical area has a good, moderate or hazardous AQI. The suggested technique may also be applied to a large number of the existing hypersoft sets. For a remarkable environment, alleviating techniques must be undertaken.
A multilevel recovery diagnosis model for rolling bearing faults from imbalanced and partially missing monitoring data
Authors: Yang Jing , Xie Guo , Yang Yanxi , Li Qijun , Yang Cheng
Published: January 2023

As an indispensable part of large Computer Numerical Control machine tool, rolling bearing faults diagnosis is particularly important. However, due to the imbalanced distribution and partially missing of collected monitoring data, such diagnostic issue generally emerging in manufacturing industry is still hardly to be solved. Thus, a multilevel recovery diagnosis model for rolling bearing faults from imbalanced and partially missing monitoring data is formulated in this paper. Firstly, a regulable resampling plan is designed to handle the imbalanced distribution of data. Secondly, a multilevel recovery scheme is formed to deal with partially missing. Thirdly, an improved sparse autoencoder based multilevel recovery diagnosis model is built to identify the health status of rolling bearings. Finally, the diagnostic performance of the designed model is verified by artificial faults and practical faults tests, respectively.
Predictable Factors that Help Students Engage in Online EFL Classroom and their Relationship to Self-Management
Authors: Al Awabdeh Abdelhameed , Albashtawi Abeer Hameed
Published: January 2023

Online teaching has become a decisive factor to keep growing in higher education settings. The present analytical correlational study examined the predictable factors that would help EFL Jordanian students engage in online learning in English courses after COVID-19 pandemic. To achieve the objective of the study, a validated and a reliable survey was administered   to investigate the students’ perceptions toward various factors that would affect their success and engagement in online EFL classroom. Additionally, the relationship among some factors was investigated. Fifty-nine EFL students in an English Language Skills course in a technical university college in Jordan were randomly selected to respond to a questionnaire which was adapted from Bernard [7]. Data of the study were analyzed using the descriptive statistics (means and standard deviations) and Person Correlation Coefficient. Findings of the study confirmed that relationship among some factors has uncovered the importance of having basic skills in building other skills. A positive relationship was also found between the factors that help students engage in online learning and self- management. Findings of the study would be helpful for teachers, instructors, and course designers when designing and delivering online courses as well as policy makers
Enhancement the Educational Technology by Using 5G Networks
Authors: Duha Khalid Abdul-Rahman Al-Malah  , Ban Hassan Majeed  , ALRikabi Haider TH.Salim
Published: January 2023

With the spread of global markets for modern technical education and the diversity of programs for the requirements of the local and global market for information and communication technology, the universities began to race among themselves to earn their academic reputation. In addition, they want to enhance their technological development by developing IMT systems with integrated technology as the security and fastest response with the speed of providing the required service and sure information and linking it The network and using social networking programs with wireless networks which in turn is a driver of the emerging economies of technical education. All of these facilities opened the way to expand the number of students and solve the problem of accumulation, collection and analysis of data by storing it with large, expanded and automatically interconnected databases between university places and departments to provide services adapted to the desire of demand. This research dealt with a sample from of the academic’s opinions and students. The sample is 319 questionnaires. It concluded that each of the infrastructure, devices, Internet of things, smart classrooms, and administrative database, with the presence of the fifth-generation network and its equipment, have a statistically significant correlation with technical education technology.
The Degree of Practicing Creative Thinking Skills by Basic School Teachers in Emirate of Sharjah from their Point of View
Authors: Al-Shaikh Manal Mahmoud , Najeh Rajeh Alsalhi
Published: January 2023

This study aimed at finding out the degree of practicing creative thinking skills by basic school teachers in Emirate of Sharjah, from their point of view. The descriptive – survey methodology was used in the study. The study sample consisted of (50) female teachers of the basic stage. A questionnaire was developed to collect the study data. It consisted of (22) items, distributed on five domains: (fluency, flexibility, sensitivity to problems, taking risk and enriching detail skills). Validity and reliability of the tool were assured. The findings showed that the degree of practicing creative thinking skills by basic female school teachers was high from their point of view. There were no statistically significant differences at (α ≤ 0.05) in the degree of practicing creative thinking skills by the basic female school teachers in Al – Sharjah Emirate attributed to academic qualification and experience variables. Among the recommendations of the study was: Supporting the effectiveness of practicing creative thinking skills of the basic female school teachers in Emirate of Sharjah.
An Analysis of the Categories and Structures of Expertise for Students’ Cognitive States
Authors: Niu Mingzhe
Published: January 2023

Knowledge networks play an important role in the process of knowledge acquisition and sharing by students. An analysis of their complex structural features is required for the connectivity between students and knowledge. Existing research lacks insight into the internal structural features of knowledge networks constructed from expertise. There is also a lack of effective methods for constructing personalised knowledge networks for students' cognitive states. This paper analyses the categories and structures of expertise for students' cognitive states, and presents in detail a grey prediction algorithm to identify students' cognitive states. Then, the paper presents a typological description of the knowledge nodes in the expertise network for students' cognitive states, and analyses the knowledge network structure from the perspectives of paths and statistical properties. After that, the paper gives a method for analysing the knowledge flow of the expertise network. The experimental results validate the effectiveness of the proposed method.
Adventuring Physics: Integration of Adventure Game and Augmented Reality Based on Android in Physics Learning
Authors: Rizki Iqbal Ainur , Saphira Hanandita Veda , Alfarizy Yusril , Saputri Aulia Dwi , Ramadani Riski , Suprapto Nadi
Published: January 2023

One of the difficulties in physics learning is the low motivation to learn because physics materials are considered complex, boring, and abstract for students. Therefore, this research developed an Augmented Reality (AR)-integrated game application "Adventuring Physics" based on android that can create more fun physics learning and provide concept visualization on abstract materials so that they become easier for students to understand. This study aims to develop a valid and practical application of Adventuring Physics games on physics learning. This research uses Research and Development (R&D) design to develop the application. This application has two main features: 'play games' and 'augmented reality'. Furthermore, the game's concept in this application is adapted to the physics materials. Meanwhile, the AR feature in this application can create visualizations in the form of 3D image projections of the material. The results of the validity assessment show that this application is declared valid, feasible, and reliable. In addition, the results of the practicality assessment show that this application is very practical. Thus, the app is worth applying in physics learning. This research has implications as an application of Adventuring Physics that can motivate students to learn physics, apply digital technology in education, and apply it to physics learning.
Pour en finir avec l'ordre symbolique. A propos de l'ouvrage: Ni d'Eve ni d'Adam. Défaire la différence des sexes
Authors: Bertini Marie-Joseph
Published: January 2023

A quoi sert la différence des sexes ? L'ouvrage, à la croisée de la philosophie, de l'anthropologie et de la sociologie, montre que le système de la différence des sexes ne sert qu'à étayer celui de l'inégalité des sexes à travers le dispositif puissant de l'ordre symbolique, véritable théologie pratique que l'anthropologie structurale, la psychanalyse lacanienne et une certaine philosophie du Droit se font fort de relayer dans tous les domaines de nos sociétés.  L'auteur mobilise une analyse critique des dispositifs stratégiques mettant en œuvre les principes qui animent nos valeurs, nos représentations et nos comportements. C’est au sacré que font étrangement appel les auteurs et les politiques qui nous défendent d’approcher de trop près cet ordre fondateur et transcendant, source originaire de notre humanité. Or cet ordre symbolique, processus d'assujettissement à un système de relations sociales hiérarchisées et figées, n'est rien d'autre que notre société elle-même en tant qu'elle s'épuise à se donner un fondement. De sorte que le système de l'ordre symbolique et de la hiérarchie des sexes nous renseignent moins sur ce qu'est une société humaine que sur ce qu'elle devrait être, manifestant ainsi que toute définition est clôture sur ses propres présupposés idéologiques de transcendance, de vérité et de morale.
Femmes et genre dans l’histoire de l’immigration. Naissance et cheminement d’un sujet de recherche
Authors: Guerry Linda
Published: January 2023

Attentif au contexte et aux évolutions théoriques dans les sciences humaines et sociales, cet article présente l’historiographie d’un sujet de recherche encore peu abordé en France : les femmes et le genre dans l’histoire de l’immigration. L’article analyse les facteurs d’émergence et les premières approches d’un sujet qui a d’abord été travaillé par les sciences sociales et la difficile rencontre de l’histoire de l’immigration et de l’histoire des femmes (tant en France qu’aux États-Unis). Il présente enfin les recherches les plus récentes qui intègrent le genre à l’analyse historique du phénomène migratoire.
Savoirs mondains, savoirs savants : les femmes et leurs cabinets de curiosités au siècle des Lumières
Authors: Gargam Adeline
Published: January 2023

Dans la France des Lumières, la culture de la curiosité est un phénomène de mode mais surtout un jeu social et intellectuel. La présente étude entend retracer l’histoire d’une trentaine de cabinets féminins de curiosité tenus à cette époque. Des femmes fortunées de l’aristocratie et de la bourgeoisie parisienne et provinciale ont alors constitué sous l’emprise de leur libido sciendi des cabinets d’alchimie, de minéralogie, de physique‑chimie, d’histoire naturelle et d’anatomie naturelle et artificielle. Ces cabinets obéissent à une typologie particulière. Il en existe deux catégories : les cabinets d’amateurs, constitués pour la parade et le spectacle des visiteurs et fonctionnant comme de véritables écoles de plaisirs intellectuels et éducatifs ; les cabinets à finalité scientifique et didactique, formés par des savantes expérimentées qui se livrent dans leurs laboratoires à des recherches personnelles et expérimentales au nom des progrès de la science médicale et de l’instruction publique. La réflexion porte aussi sur le fonctionnement de ces cabinets privés de curiosité, particulièrement sur leur mode de constitution, leur décor intérieur ainsi que sur le contenu des collections qui nécessitaient certaines techniques d’organisation, d’acquisition et de conservation communes à celles de leurs homologues masculins.
HABITAÇÃO ESTUDANTIL EM CONTEXTOS UNIVERSITÁRIOS:
Authors: Fonseca e Souza Maressa , Maria de Almeida Pinto Neide
Published: January 2023

O ensino superior envolve dimensões que ultrapassam a transmissão de conhecimentos, abrangendo a habitação destinada aos estudantes, entre outros aspectos relacionados à subsistência discente. No Brasil, são escassas as investigações científicas que avaliam as implicações espaciais dessa moradia em contextos universitários. Neste artigo, objetiva-se explorar o estado da arte sobre o referido tema, realizando uma revisão sistemática de literatura que abrange estudos nacionais e internacionais. Desse modo, foram selecionados 37 artigos científicos, publicados entre 2016 a 2020, sendo identificadas 13 perspectivas de estudo distintas. Como discussão de maior interesse, destacam-se as temáticas sobre estudantificação, as tipologias habitacionais, a satisfação residencial e o desempenho acadêmico, confirmando, assim, que as moradias estudantis constituem espaços fundamentais nas trajetórias de vida dos universitários.
Intergeracionalidade do apego infantil e reflexos na conjugalidade e parentalidade
Authors: Becker Ana Paula Sesti , Crepaldi Maria Aparecida
Published: January 2023

Este artigo teve como objetivo descrever as concepções sobre os padrões intergeracionais de apego na relação conjugal e parental dos membros do casal. Foram entrevistados 10 participantes, compondo cinco casais heteroafetivos que tivessem, no mínimo, um filho entre zero e seis anos. As entrevistas foram analisadas por meio da análise categorial temática, com o auxílio do software Atlas-ti. Constatou-se que os padrões de apego são transmitidos de forma intergeracional da família de origem para as gerações posteriores, influenciando recursivamente na conjugalidade e na parentalidade. As mulheres evidenciaram mais padrões de descontinuidades que os homens, especialmente na relação parental atual. Por sua vez, os homens salientaram a referência do casamento de seus próprios pais e os valores de comprometimento conjugal que receberam, motivando-os a repetir tais padrões em sua relação amorosa adulta. Tais resultados possibilitam reflexões para a promoção da qualidade nas relações familiares.
O estar em UTI neonatal: percepções dos pais sobre a vivência da hospitalização e a assistência psicológica recebida na unidade
Authors: Chaves Rocha Amanda , Lima Reis Henrique , Sampaio Mariá Lanzotti , Manfroi Edi Cristina
Published: January 2023

Este trabalho objetivou investigar a percepção de pais (mãe e pai) de bebês prematuros internados em uma Unidade de Terapia Intensiva neonatal acerca da hospitalização e assistência psicológica recebida na unidade. A amostra foi composta por 12 pais de bebês internados e os dados foram coletados entre os meses de janeiro e maio de 2021 através de entrevista semiestruturada e analisados por meio da técnica da análise de conteúdo. Enquanto o sofrimento que marca a hospitalização do bebê ficou evidenciado através dos relatos de medo e angústia, sobretudo nos momentos iniciais de internação, também foram descritas sensações de alívio e felicidade emergentes da consciência de que o paciente estava recebendo os cuidados necessários disponibilizados pelo serviço. A melhora clínica do bebê e a percepção positiva acerca do cuidado ofertado pela equipe de saúde contribuíram para a estabilidade emocional dos pais ao longo da internação. Por fim, a assistência psicológica recebida foi descrita como promotora de apoio e acolhimento e mostrou-se relevante no auxílio ao enfrentamento da situação vivenciada.
Modeling of Agricultural Waste Higher Heating Value Based on Proximate Analysis
Authors: Houemenou Alexandre , Chetangny Patrice , Adamon David , Zogbochi Victor , Houndedako Sossou , Fagbemi Latif Adéniyi , Barbier Gerald , Antoine Vianou , Chamagne Didier
Published: January 2023

A model of the higher heating value on a dry basis from the proximity analysis of agricultural wastes in Benin has been proposed in this article. This model was developed using agricultural residues such as shea shells and cakes, cotton and soybean stalks, corn cobs and peanut shells identified as part of the implementation of an experimental system. The validity of this model has been established for the Higher Heating Value (HHV) between 18.07 MJ/kg to 25.91 MJ/kg, Volatile Matter rate (%VM) 66.8% to 79.87%, Fixed Carbon rate 13.83% to 29.59%, and Ash content (%Ash) 3.47% to 6.3%. The model has an average absolute error of 2.79% and a bias error of 0.034%, significantly better than the most accurate literature prediction model, which offers a mean absolute error of 5.97% and –4.66% for the bias error. This work presents as well the first data from the proximity analysis of agricultural residues in Benin. These analyzes are carried out using a well-structured methodology that respects the standards and measures of simple random sampling forsample collection. Samples prepared under appropriate conditions are analyzed using standardized protocols for the agricultural wastes studied.
A Frequency Reconfigurable Fractal UWB Antenna Using Ground Stub and PIN
Authors: Gupta Sumit Kumar , Shukla Bhawna , Das Soma
Published: January 2023

A hexagonal shaped repeated loop structure with reconfigurable ground stub technique is proposed for ultra-wideband (UWB) application. Effects of repeated loops in the fractal structure and position of reconfigurable ground stub are optimized for ultra-wideband characteristics with better performance of the antenna. Two PIN diodes are used in the ground stub to achieve reconfigurability. The proposed fractal antenna is designed with FR4 substrate with an overall dimension of 40×44×1.6 mm3. The design shows frequency reconfiguration from Ultra-wideband characteristics to multiband for different possible switching conditions. The entire design is carried out in CST 2018 environment and the simulated results show that the proposed design is suitable for sub 6GHz wireless LAN, Bluetooth, WiMAX and other wireless applications.
An Ultrafast and Green Synthesis of Mesoporous Zeolite X for Great Enhancement in Methylene Blue Adsorption
Authors: Phuong Nguyen Thi Truc , Minh Cu Hoang , Lam Hung Hoa , Duong Ngo Tran Hoang , Nguyen Long Quang
Published: January 2023

Following the global trend of green material synthesis, the microwave-assisted acid leaching process has significantly reduced the treated time to introduce mesoporosity into zeolite FAU (type X). Instead of hours, mesoporous zeolite has appeared for 5 minutes only. The material's success was demonstrated by various characterizations like the hysteresis loops of the Nitrogen adsorption-desorption curves, the X zeolitic structure through X-ray diffraction (XRD) patterns, and the morphology by scanning electron microscopy (SEM) – energy dispersive X-ray (EDX) spectroscopy analysis. Less than 10 wt% of acetic acid concentration is enough to increase the zeolite's external surface area from 34.4 m2/g to 234.4 m2/g which indicates the formation of mesopores. Intending to enhance mesoporosity while minimizing microporous loss, 0.9 wt% acetic concentration corresponding to 172.6 m2/g external area value and 630 m2/g BET surface area value is prominent in the samples. In addition, mesopore enhancement has played an extreme role in significantly improving the methylene blue adsorption with molecular transport facilitation. Methylene blue adsorption results of all mesoporous zeolites were many times higher (2-6 times) than the original microporous sample under the same adsorption conditions.
Preparation of PVA/Chitosan/Zeolite Composite and its Antibacterial Activity for Water Treatment
Authors: Quynh Le Phuong , Quang Le Nhat , Tam Nguyen Kim Minh , Nguyen Long Quang
Published: January 2023

Zeolite filled polymer has recently emerged as a promising material with its immense applications. When taking water treatment into account, it is potentially an antibacterial film. In this study, poly vinyl alcohol (PVA)/chitosan/zeolite composite membranes were prepared with different proportions, including 5:1, 8:1 and 10:1 of PVA/chitosan ratios. Zeolite available in the film aimed to improve the morphology and the efficiency in water environment, with loading dosages of 10, 20 and 50 wt%, respectively. Characterization using scanning electron microscopy (SEM), SEM/EDX and X-ray diffraction (XRD) were also conducted to have a better view of the membranes. The results of antibacterial activity against aerobic bacteria using the 3MTMPetrifilmTMAerobic Count (AC) Plate. The results indicated that pure chitosan film gave 75.7% of antibacterial activity and the composite film with 5:1 ratio of PVA/chitosan was the effective proportion, revealing the antibacterial rate around 53% to the applications of bacteria inhibition. The time test of antibacterial also reduced the level of bacteria in water environment to 2900 CFU of aerobic bacteria.
Investigating the Behavior of Permeable and Impermeable Reservoirs in Southern of Iraq
Authors: Majeed Amani J. , Al-Mukhtar A.M. , Abood Falah , Alshara Ahmed
Published: January 2023

The effect of hydraulic fracturing on the permeability and fluid flow of various Iraqi oil storage cores has been studied. Rumaila, Majnoon, and Zubair fields with different permeability were included in this study. Experiments were performed to determine the breaking pressure of the permeable core. Therefore, numerical and experimental results were compared to test the constant pressure on the impermeable core. Finite Volume Method (EbFVM) corresponding to the Dual Porosity Dual Permeability Model (DPDP) was used. A fractured reservoir in the Iraqi fields was studied for its single-phase fluid flow behavior. To represent the pressure distributions, ANSYS-CFX program was used. The comparisons between the fractured and non-fractured cores has been presented. In this paper, the pressure for permeable cores of Rumaila field has been determined and verified during the experimental and numerical simulation due to its lower fracture pressure. Hence, the required pressure has been determined for impermeable cores of Majnoon and Zubair fields due to the difficulties to measure such high pressure. The results show that the expected pressure to make a flow for the core belongs to the Majnoon field reaches to 1.724×107 Pa (2500 psi), while the expected pressure for the fluid to flow into the core belongs to the Zubair field reaches 1.379×108 Pa (20000 psi).
Long-Term Electricity Load Forecasting Using Artificial Neural Network: The Case Study of Benin
Authors: Yotto Habib Conrad Sotiman , Chetangny Patrice , Zogbochi Victor , Aredjodoun Jacques , Houndedako Sossou , Barbier Gerald , Antoine Vianou , Chamagne Didier
Published: January 2023

Africans in general and specially Beninese’s low rate access to electricity requires efforts to set up new electricity production units. To satistfy the needs, it is therefore very important to have a prior knowledge of the electrical load. In this context, knowing the right need for the electrical energy to be extracted from the Beninese network in the long term and in order to better plan its stability and reliability, a forecast of this electrical load is then necessary. The study has used the annual power grid peak demand data from 2001 to 2020 to develop, train and validate the models. The electrical load peaks until 2030 are estimated as the output value. This article evaluates three algorithms of a method used in artificial neural networks (ANN) to predict electricity consumption, which is the Multilayer Perceptron (MLP) with backpropagation. To ensure stable and accurate predictions, an evaluation approach using mean square error (MSE) and correlation coefficient (R) has been used. The results have proved that the data predicted by the Bayesian regulation variant of the Multilayer Perceptron (MLP), is very close to the real data during the training and the learning of these algorithms. The validated model has developed high generalization capabilities with insignificant prediction deviations.
Application of Diode Laser in Excision of a Peripheral Ameloblastoma - A Case Report
Authors: Pakhira Soubhik , Raha Anirban , Mazumder Paramita
Published: January 2023

Rationale:

Occurrence of peripheral ameloblastoma (PA) is rare. Excision of PA by diode laser is infrequent.

Patient Concerns:

A 27-year-old female patient presented with an asymptomatic mass on the retromolar trigone for the past one year.

Diagnosis:

Incisional biopsy showed aggressive PA.

Treatment:

The lesion was excised using a diode laser under local anaesthesia. The excised specimen revealed histopathological features of the acanthomatous variant of PA.

Outcomes:

The patient was followed up for two years without any evidence of recurrence.

Take-Away Lessons:

Diode laser is an acceptable alternative to conventional scalpel excision for intraoral soft tissue lesions, whereas, in the case of PA, it proves to be no exception.