bluuebunny/crossref_metadata_2025 huggingface dataset:
Simulation Study of the Effect of Wind Speed and Material Type on the Mechanical Properties of Vertical Axis Wind Turbine Blades
Authors: Rajasa Wido Mahendra  , Samsudin Anis  , Deni Fajar Fitriyana  , Zaenal Abidin  , Atika  , Adhi Kusumastuti  , Yogi Reza Ramadhan
Published: October 2023

Wind energy is a clean and fast-growing renewable energy source that can be harnessed using wind turbines. In a Vertical Axis Wind Turbine (VAWT), turbine blades are a crucial factor, and their fiasco leads to wind turbine failure. However, references to VAWT blade structural analysis are very limited. Therefore, the study was carried out to determine the material with the lowest degree of deformation without structural failure. The finding could be used as a recommendation in the material selection of Savonius type vertical axis wind turbine blades. The study used materials such as aluminum, stainless steel, and fiberglass. The analysis was carried out by simulating using ANSYS software. Computational Fluid Dynamics (CFD) was used for determining the loading by providing speed variations at 3 m/s, 4 m/s, 5 m/s, and 6 m/s. The Finite Element Analysis (FEA) method was applied to analyze the structure, which shows the results of total deformation, equivalent stress, and safety factor. The total deformation results from the aluminum blades showed values of 109.55 mm, 190.73 mm, 299.25 mm, and 425.39 mm. The safety factor values of 4.4049, 2.5166, 1.5647, and 1.1348 revealed that it was also technically safe. Aluminum material can be recommended to be used in the manufacture of Savonius type vertical axis wind turbine blades because of its low price, lightweight, corrosion resistance, and sufficient durability, as revealed from the results of total deformation and safety factor values.
Analisis Distribusi Daya Listrik di Akademi Komunitas Negeri Aceh Barat
Authors: Firnanda Ary , Purnandi Mirza , Wahyudin Wahyudin
Published: October 2023

AbstractThe existing electric power needs to be managed properly so that the use of electric power is more optimal. Large electric power will not be used optimally if the electrical power distribution system is not properly systemized. The utilization of electrical system at the West Aceh Community Academy needs to be analyzed so that electric power can be used optimally as needed. The West Aceh Community Academy has rooms with different levels of electric power consumption such as lecture halls, of course, their electrical power consumption will be different compared to practicum laboratories which use equipment that requires a large consumption of electrical power. The purpose of this study is to determine if the distribution of electrical power at the West Aceh Community Academy is accurate or not. The literature study and field observation research methods were used in this study. The finding revealed that the West Aceh Community Academy’s electrical utility system needs to be changed in order for the use of electrical power at the West Aceh Community Academy to be more efficient.Keywords:The Electric Power Distribution; Electric Power; Electric Power Consumption.__________________________AbstrakDaya listrik yang ada perlu dikelola dengan baik agar penggunaan daya listrik lebih optimal. Daya listrik yang besar tidak akan dapat digunakan secara optimal jika sistem distribusi daya listrik tidak tersistem dengan baik. Pemanfaatan sistem kelistrikan di Akademi Masyarakat Aceh Barat perlu dianalisis agar daya listrik dapat digunakan secara optimal sesuai kebutuhan. Akademi Komunitas Negeri Aceh Barat memiliki ruangan-ruangan dengan tingkat konsumsi daya listrik yang berbeda seperti ruang kuliah, tentunya konsumsi daya listriknya akan berbeda dengan laboratorium praktikum yang menggunakan peralatan yang membutuhkan konsumsi daya listrik yang besar. Tujuan dari penelitian ini adalah untuk mengetahui apakah pendistribusian daya listrik di Akademi Komunitas Negeri Aceh Barat sudah tepat atau belum. Metode penelitian studi literatur dan observasi lapangan digunakan dalam penelitian ini. Hasil penelitian menunjukkan bahwa sistem utilitas kelistrikan Akademi Komunitas Negeri Aceh Barat perlu diperbaiki agar penggunaan daya listrik di Akademi Komunitas Negeri Aceh Barat menjadi lebih efisien.Kata Kunci:Distribusi Daya Listrik; Daya Listrik; Konsumsi Daya Listrik.__________________________
Penerapan Model Pembelajaran Contextual Teaching and Learning pada Sekolah Menengah Kejuruan
Authors: Juliwardi Ilham , Ganefri Ganefri
Published: October 2023

AbstractThis research is motivated by the low percentage completeness results of class X student TITL2 in SMK N 1 Pariaman on subjects (MRL) to the basic competence to analyze a series of alternating current (AC) according to ohms law, which is still a lot of students have not reached KKM is 75. One of the factors that influence student learning outcomes are poor learning model. To view the learning outcome using the learning model, a research by applying the learning model Contextual Teaching and Learning. Learning Model CTLis a learning model that has components in it that can emphasize the students more active and participate. The purpose of this study was to determine the improvement of student learning outcomes in subjects MRL by applying the Learning Model of CTLclass X TITL 2 in SMK 1 Pariaman. This research is a quasi experiment with pretest-posttest design one group. The instrument used was a pre-test and post-test. Such an instrument before used first tested the validity of the obtained 25 about the pre-test and 26 about the post-test are valid, research results overall as calculated seen an increase learning outcomes with an average g = 0,462 category was the student learning outcomes before and after using model Contextual teaching and learning.Keywords:Improvement; Contextual Teaching and Learning; learning outcomes__________________________AbstrakPenelitian ini dilatarbelakangi oleh rendahnya persentase hasil ketuntasan siswa kelas X TITL2 di SMK N 1 Pariaman pada mata pelajaran (MRL) terhadap kompetensi dasar menganalisis rangkaian arus bolak-balik (AC) menurut hukum ohm yang masih banyak siswa yang belum mencapai KKM adalah 75. salah satu faktor yang mempengaruhi hasil belajar siswa adalah model pembelajaran yang kurang baik. Untuk melihat hasil belajar menggunakan model pembelajaran, dilakukan penelitian dengan menerapkan model pembelajaran Contextual Teaching and Learning. Model Pembelajaran CTLmerupakan model pembelajaran yang memiliki komponen-komponen di dalamnya yang dapat menekankan siswa lebih aktif dan berpartisipasi. Tujuan penelitian ini adalah untuk mengetahui peningkatan hasil belajar siswa pada mata pelajaran MRL dengan menerapkan Model Pembelajaran CTL kelas X TITL 2 di SMKN 1 Pariaman. Penelitian ini merupakan penelitian eksperimen semu dengan desain pretest-posttest one group. Instrumen yang digunakan adalah pre-test dan post-test. Instrumen tersebut sebelum digunakan terlebih dahulu diuji validitasnya diperoleh 25 tentang pre-test dan 26 tentang post-test yang valid, hasil penelitian secara keseluruhan yang dihitung terlihat adanya peningkatan hasil belajar dengan rata-rata g = 0,462 kategori sedang siswa hasil belajar sebelum dan sesudah menggunakan model Contextual teaching and learning.Kata Kunci:Peningkatan; Contextual Teaching and Learning; Hasil Belajar__________________________
Analisa Sistem Proteksi Internal dan Eksternal Perangkat SCADA di Gedung MCS Medan terhadap Arus dan Tegangan Lebih Petir
Authors: Hasibuan Arnawan , Praditya Indra , Isa Muzamir , Jannah Misbahul , Putri Syarifah Muthia
Published: October 2023

AbstractIn the electric power system operational reliability and stability required in order to maintain continuity in service.To maintain the reliability of the distribution system it is necessary to monitor and control operating conditions in real time.One of the monitoring and control equipment available is based on SCADA.SCADA devices are extremely vulnerable to induction over from lightning strikes, the device is required earthing protection systems are adequate for the protection of internally and externally.In this paper, an earth protection system has been analyzed and evaluated for the earth resistance value and the induced voltage that occurs in the MCS Medan building.Current conditions indicate that the SCADA security and protection system needs to be equipped with a lightning protection system.The earth resistance current is 3.02 Ω, and the induced voltage is 676.84 kV.The analysis and evaluation results obtained are the earth resistance value drops to 0.5 Ω and the induced voltage drops to 51.36 kV.Keywords:SCADA; MCS; Grounding; Induction Voltage; Lightning.__________________________AbstrakDalam operasional sistem tenaga listrik diperlukan keandalan dan kestabilan guna menjaga kontinuitas dalam pelayanan. Untuk menjaga kehandalan sistem penyaluran perlu dilakukan pemantauan dan pengendalian kondisi operasi secara realtime. Salah satu peralatan pemantau dan pengendali yang ada berbasis SCADA. Perangkat SCADA ini sangat rentan terhadap induksi lebih akibat sambaran petir, maka diperlukan perangkat sistem proteksi pentanahan yang memadai untuk perlindungan secara internal dan eksternal. Dalam paper ini telah dianalisis dan dievaluasi sistem proteksi pentanahan terhadap nilai tahanan pentanahan dan tegangan induksi yang terjadi pada gedung MCS Medan. Kondisi saat ini menunjukkan bahwa sistem penganaman dan perlindungan SCADA perlu dilengkapi sistem proteksi petir. Nilai tahanan pentanahan saat ini sebesar 3.02 Ω, dan tegangan induksi sebesar 676.84 kV. Hasil analisa dan evaluasi yang didapat adalah nilai tahanan pentanahan turun menjadi 0.5 Ω dan tegangan induksi turun menjadi 51.36 kV.Kata Kunci:SCADA; MCS; Grounding; Tegangan Induksi; Petir.__________________________
The Effect of Market Value Added, Market Capitalization, and Foreign Ownership on Stock Return in Energy Sector Companies Indonesia Stock Exchange
Authors: SUGIANTARA I Dewa M , ALEXANDER Stanly W. , WOKAS Heince R. N.
Published: October 2023

The rate of return is one of the primary considerations in making investment decisions. Stock return is the result obtained from stock investment activities, which can be in the form of realized returns and expected returns. This study aims to determine the effect of Market Value Added, Market Capitalization, and Foreign Ownership on Stock Returns. The object research was carried out at Energy Sector Companies listed on the Indonesia Stock Exchange from 2017 to 2021. This type of research is quantitative research using a purposive sampling technique. There are 26 sample companies selected from 39 companies. The sample is determined based on: 1) Energy sector companies listed on the main board of the Indonesia Stock Exchange for the 2016-2017 period. 2) Energy sector companies that do not publish annual reports for the 2017-2021. 3) Energy sector companies must provide complete data according to the research variables. This study analyzed data using multiple linear regression, with statistical processing using IBM SPSS 26. The analysis of this study shows that market value added and capitalization affect stock returns. Meanwhile, foreign ownership does not affect stock returns.
The China -Pakistan Economic Corridor: A Critical Analysis of Gulf- Crisis
Authors: AZEEZ Ismail Adaramola Abdul
Published: October 2023

The Chino-Pakistan Economic Corridor (CPEC), initialed in 2013, is among China’s biggest foreign policy and investment commitments. It links China's Xinjiang Province with the Arabian Sea overland through Pakistan by three major new transportation corridors, supplemented by new power plants fueled by both renewables and coal, and establishing new industrial parks and trade zones. The project could transform Pakistan, but it also has clear implications for the Gulf States and after the outbreak of the Qatar crisis in 2017, CPEC became an arena of competition for the Gulf States. China-Pakistan Economic Corridor (CPEC) is a part of a strategic geopolitical move that promises not only augment the strategic position of Pakistan but also unleashing socio-economic potentials of Qatar and China. The research is an effort to highlights the interest of china and Pakistan regarding CPEC. Keeping in view the geo-strategic location of Gwadar port It also provides an insight into the challenges regarding CPEC It also endorses why Qatar is keenly interested to join the CPEC and how its involvement boosts its economy? The proposed research is based on descriptive and analytical research methods where the researcher consults primary and secondary sources to support their argument. So, in this way, the results suggest that strategically CPEC would provide a supported system to Qatar to transform its move into a truly interconnected world. This project can potentially strengthen the macroeconomic cooperation connectivity peace, and growth among different countries through trade and business opportunities which will further generate revenues for Qatar.
Quasi-simultaneous Optical Flux and Polarization Variability of the Binary Super Massive Black Hole Blazar OJ 287 from 2015 to 2023: Detection of an Anticorrelation in Flux and Polarization Variability
Authors: Gupta Alok C. , Kushwaha Pankaj , Valtonen Mauri J. , Savchenko Sergey S. , Jorstad Svetlana G. , Imazawa Ryo , Wiita Paul J. , Gu Minfeng , Marscher Alan P. , Zhang Zhongli , Bachev Rumen , Borman G. A. , Gaur Haritma , Grishina T. S. , Hagen-Thorn V. A. , Kopatskaya E. N. , Larionov V. M. , Larionova E. G. , Larionova L. V. , Morozova D. A. , Nakaoka T. , Strigachev A. , Troitskaya Yulia V. , Troitsky I. S. , Uemura M. , Vasilyev A. A. , Weaver Z. R. , Zhovtan A. V.
Published: October 2023

We study the optical flux and polarization variability of the binary black hole blazar OJ 287 using quasi-simultaneous observations from 2015 to 2023 carried out using telescopes in the USA, Japan, Russia, Crimea, and Bulgaria. This is one of the most extensive quasi-simultaneous optical flux and polarization variability studies of OJ 287. OJ 287 showed large amplitude, ∼3.0 mag flux variability, large changes of ∼37% in degree of polarization, and a large swing of ∼215° in the angle of the electric vector of polarization. During the period of observation, several flares in flux were detected. Those flares are correlated with a rapid increase in the degree of polarization and swings in electric vector of polarization angle. A peculiar behavior of anticorrelation between flux and polarization degree, accompanied by a nearly constant polarization angle, was detected from JD 2,458,156 to JD 2,458,292. We briefly discuss some explanations for the flux and polarization variations observed in OJ 287.
The effect of body weight and psychological characteristics on periodontal disease development
Authors: Skrypnyk Maksym , Petrushanko Tatiana , Neporada Karine , Vynnyk Nataliia , Skikevych Margarita , Skrypnyk Igor
Published: October 2023

Aim: The aim of the study was to examine the association between periodontal health in young patients with various body mass indexes and psychological traits such as temperament, level of anxiety, and autonomic nervous system tone.

Materials and methods: The study included 132 male and female subjects aged 18–22 years with different body mass indexes (BMI). They were allocated into four groups by their BMIs: normal weight, overweight, and first- and second-degree obesity. We completed periodontal charts for all patients and evaluated basic oral hygiene and periodontal indexes, such as the Green-Vermillion index (OHI), the approximal plaque index by Lange (API), and papilla bleeding index by Saxer & Mühlemann (PBI). Eysenck personality questionnaire, the state-trait anxiety inventory of Spielberger-Khanin, and Wayne questionnaire were used to determine the psychological characteristics.

Results: Patients with the first and second degrees of obesity were found to have the highest prevalence and severity of generalized gingivitis (up to 90%). Patients with normal BMI had significantly lower levels of extraversion and higher levels of neuroticism than the obese individuals, while subjects with extra weight and normal BMI were more emotionally stable. We found no evidence that choleric or melancholic temperament had an impact on BMI or periodontal health. However, phlegmatic temperament was found to be linked to a normal BMI, good oral hygiene, and an intact periodontium, while sanguine temperament was linked to obesity and gingivitis in young adults. A significantly higher level of state and trait anxiety was observed in obese individuals. Fifty percent of the obese subjects had disturbances of the functional state of the cardiovascular system and the tone of the autonomic nervous system.

Conclusions: Because obesity and periodontal pathology are multifactorial diseases linked to lifestyle, stress tolerance, and habits, personality temperament may play a causal role in their development.
The year in cardiovascular medicine 2022: the top 10 papers in heart failure and cardiomyopathies
Authors: de Boer Rudolf A. , Bauersachs Johann
Published: October 2023

The year in cardiovascular medicine 2022: the top 10 papers in heart failure and cardiomyopathies
Assessing temperature warming and cooling rates using simple statistical analysis: The case study of Jalingo metropolis
Authors: Asa Patrick Sunday , Zemba Ambrose Audu
Published: October 2023

Urban climatologist particularly those interested in Urban Heat Island (UHI), require some form of explanations to UHI variations at both spatial and temporal scales in cities. Temperature cooling and warming rate can be use as a form of explanations for spatial and temporal variations for UHI intensity characteristics of an area. This study therefore, assessed variations in temperature warming and cooling rates in Jalingo. The study used temperature data collected at six locations representing six different thermal climate zones in the study area. Temperature data were collected for the period of 90 days thirty days in each of rainy season, dry season, and hamattan period. Simple statistical analysis was performed to determine the warming and cooling rates. The results indicate that temperature warm and cool differently in the study area. The results also revealed that general warming in the area within the study period begins at 8:00 h local time (GMT +1) with warming rate ranging from 0.94°C to 1.75°C across locations with a mean of 1.30°C. Cooling starts at 15:00 h ranging from -0.88°C to -1.84°C with an average of -1.48°C. It is recommended that environmental planners particularly the urban planners and Architectures should take into considerations the warming and cooling rates in their building design and also embrace appropriate landscaping to improve thermal comfort.
Corps-d’écran : jeux vidéo et gestes numériques
Authors: Gauthier Céline , Linares Anaïs , Gardner Sally
Published: October 2023

Alors que nous interagissons chaque jour davantage avec des supports numériques, les sciences du jeu développent des savoirs esthétiques pour qualifier nos expériences dans un monde virtuel. Presser, glisser, tapoter un écran tactile ou une manette de jeu vidéo composent un répertoire de gestes que l’usager intègre dans son quotidien – et que les artistes incorporent sur scène.
La zone du dehors
Authors: Grégoire Axelle , Fouillet Aurélien
Published: October 2023

À la manière d’une carte blanche, la revue donne la parole à des savoirs élaborés par d’autres disciplines : Aurélien Fouillet, sociologue et ébéniste, s’interroge sur les écarts féconds que permet le jeu. Puisant des figures dans le lexique des mouvements corporels (le pas de côté, la luxation) ou des cartes à jouer (le boiteux, l’acrobate), il nous invite à percevoir comment nos jeux déstabilisent la cohérence apparente de nos sensations.
La terminologie sur les professionnels de la communication militaire : genèse et contextualisation.
Authors: Bizimana Aimé-Jules
Published: October 2023

Dans la foulée de l’actualité sur le conflit Russie-Ukraine qui relance le débat sur le rôle de l’information en temps de guerre, cet article retrace l’évolution de la terminologie qui désigne les professionnels de la communication militaire. À travers une approche diachronique dans le contexte anglo-saxon (États-Unis, Canada et Royaume-Uni), l’auteur révèle les usages terminologiques et leurs métamorphoses à partir de la Grande Guerre. L’article revient sur différentes phases de l’institutionnalisation et de la professionnalisation des « officiers de communication » militaires et offre une réflexion critique sur une terminologie fondée à la fois sur un discours de distanciation avec la propagande et sur un discours de légitimation d’un champ professionnel concurrent au journalisme et qui a acquis une place importante dans la communication militaire institutionnelle et opérationnelle.
Prescriptions visuelles de l’habiter urbain. Le rôle des documents visuels dans la communication autour de projets de réhabilitation.
Authors: Després-Lonnet Marie , Spano William
Published: October 2023

À une époque marquée par le souci de repenser la ville et les modes de vie qui lui sont associés, certains quartiers voient leur organisation et leur développement profondément transformés. Ainsi, le motif de la « smart city » ou ville « intelligente » amène politiques, architectes, journalistes et urbanistes à projeter sur les quartiers « en rénovation » diverses représentations visuelles qui s’appuient sur le bâti existant pour produire des « insertions », destinées à montrer comment les constructions à venir prendront place dans le lieu choisi. L’analyse des images mobilisées par chaque catégorie d’acteurs et des textes qui les accompagnent, permet de montrer que les zones concernées sont prises en tension entre différentes prescriptions d’usages et formes d’habiter ces lieux qui passent notamment par la mise en scène de ce que sont ou seraient les habitants et les occupants légitimes des lieux.
Vidéos de violences policières : la « preuve par l’image » ?
Authors: Riboni Ulrike Lune
Published: October 2023

Les « vidéos de violences policières » sont au cœur d’âpres débats en France depuis le mouvement des Gilets jaunes initié en 2018 et font l’objet d’une attention renouvelée un peu partout dans le monde, comme aux États-Unis récemment avec la mort filmée de George Floyd. Elles sont au cœur de débats de sens et mettent en cause l’évidence probatoire dont elles seraient porteuses en échouant souvent à soutenir la version des victimes dans les procès pénaux. Pour autant, leur incidence sur le débat public paraît tangible. L’article s’attache à interroger la catégorie de preuve visuelle à la lumière de cet objet protéiforme désigné comme « vidéo de violences policières ». En quelle mesure les images constituent-t‑elles une preuve et pour qui ? Quelles conditions socio-techniques sont nécessaires ? De quoi sont-elles la preuve ? Des caractéristiques visuelles aux usages et aux discours, il s’agit de saisir comment ces images interrogent la catégorie même de preuve.
La reine du crime. Jeu et… fin de partie
Authors: Driant Anouk
Published: October 2023

L’article propose d’explorer les sublimations dans l’œuvre d’Agatha Christie dont on connaît le succès retentissant. Dans sa très longue autobiographie, nous la voyons tenter de transformer par tous les moyens (jeu, écriture, pulsion d’investigation) une enfance pourtant non exempte de manques, de blessures, de traumatismes, auxquels répondront pas moins de soixante-six crime novels, dans lesquelles le mal banal intrafamilial est partout, et le meurtre premier. Christie entraînera chaque fois son lecteur dans une enquête passionnante et excitante, résolue par ses célèbres détectives (Hercule Poirot et Miss Marple). Son plaisir à écrire et sa réussite d’écrivaine ne pourront cependant pas la protéger d’un épisode clinique grave lorsqu’en 1926, elle disparaît onze jours, souffrant d’un moment de psychose hystérique, recouvert par le silence d’une amnésie totale.
Entretien avec Mary Leroy
Authors: Leroy Mary
Published: October 2023

Cet entretien avec Mary Leroy, directrice littéraire aux éditions Flammarion, met en évidence le travail éditorial en amont de la rédaction de la Correspondance intégrale entre Marie Bonaparte et Freud, grâce à l’équipe réunie par Mary Leroy et Cécile Marcoux avec Rémy Amouroux et Olivier Mannoni. Il met l’accent sur l’engagement et le soutien de la famille Bonaparte, celui de la Bibliothèque du Congrès et, d’autre part, l’intérêt de l’éditrice pour les recherches de Marie Bonaparte sur le plaisir féminin.
Using Virtual Reality in the Care of Older Adults With Dementia: A Randomized Controlled Trial
Authors: Xie Zhiquan , Chen Fangjun , Zou Liqin , Wang Fuzhi , Yang Li
Published: October 2023

There is a shortage of personnel to provide care for older adults with dementia, and traditional teaching methods could be improved. The teaching method used in the Care for Older Adults With Dementia course is mainly theoretical, lacking real-life care scenarios and practical procedural training. In the current study, we developed a virtual reality (VR) teaching system and designed a randomized controlled trial aimed at testing the availability of the VR–assisted teaching system, filling the gap in teaching through care scenarios, enabling students majoring in intelligent health and oldage care service management to have a more positive attitude toward learning, and improving students' knowledge and course satisfaction. This study showed that the developed VR system can meet the initial needs of daily teaching, help students have a more positive attitude toward learning, and improve their academic performance and course satisfaction. [
Journal of Gerontological Nursing, 49
(11), 25–32.]
An environmental decision support system for manufacturer-retailer within a closed-loop supply chain management using remanufacturing
Authors: Kumar Subhash , Kumar Ashok , Guchhait Rekha , Sarkar Biswajit
Published: October 2023

Industries face many challenges when emergencies arise. In emergency, there is an increasing demand for self-administered products that are easy to use. The decay rate of these products decreases with time. Moreover, the lack of disposal of used products increases waste and carbon emissions. By observing the scenario, this study develops a closed-loop supply chain management that considers the collection and remanufacturing of used products. The manufacturing rate is linear and the demand is ramp-type and carbon emissions dependent. The model is solved by a classical optimization and calculates the optimal total cost. The results show that the retailer can handle a shortage situation when the demand becomes stable (Case 2) and the total cost increases with the production rate. A sensitivity analysis shows the changes in the total cost with respect to the parameters.
Prendre goût à la politique : la construction de la communauté de Sant’Egidio dans le « long 1968 » italien (1967-1978)
Authors: Balas Marie
Published: October 2023

Organisation catholique aujourd’hui influente sur les plans ecclésial et international, la communauté de Sant’Egidio fut fondée à Rome en 1968, et s’est consolidée durant la décennie de mobilisation qui s’ensuivit. Rassemblant diverses sources de la période, cet article s’efforce d’en reconstituer la trajectoire intellectuelle et militante durant ce « lungo ‘68 ». À distance d’une histoire autorisée relativement dépolitisée, l’étude prête attention aux modèles d’inspiration du groupe, à ses répertoires d’action et à son travail de cadrage. Elle s’attarde sur deux moments : d’une part le « moment 1968 », fondateur pour la communauté et sa politisation, et d’autre part l’explosion de la contestation en 1977-1978, qui précéda l’effondrement de la mobilisation. Il s’agit d’élucider la manière dont un collectif catholique engagé dans les combats de la décennie, non seulement survécut à la crise du militantisme, mais en ressortit outillé et en voie de multipositionnement.
Introduction
Authors: Laville Béatrice , Partensky Vérane
Published: October 2023

À une époque marquée par l’essor du capitalisme l’économie impose également ses perspectives d’analyse à la littérature et accompagne le discours du réalisme naissant. L’article étudie l’attitude ambivalente des Goncourt face aux contraintes de l’économie moderne : attaché à l’utopie d’une aristocratie des Lettres, ils affirment la possibilité de soustraire l’art et la littérature aux lois du marché, mais décrivent, dans leurs romans, la manière dont le système économique corrompt les relations sociales, dégrade les individus ou les broie.
The impact of sleep toward executive functions among rapidly rotating shift nurses of emergency departments in Indonesia
Authors: Setyowati Lilis , Chiu Hsiao-Yean , Kurnia Anggraini Dwi , Aini Nur , Mashfufa Erma Wahyu , Marta Ollyvia Freeska Dwi
Published: October 2023

Sleep problems are significant and are closely related to attention issues, impacting executive function disorders, especially among healthcare professionals, including nurses. In contemporary times, shift work has emerged as a new challenge for healthcare professionals, affecting their health, wellbeing, and cognitive functions. This study aimed to investigate the relationship between sleep and executive function among staff working in the Emergency Department (ED). The research was a cross-sectional study conducted on emergency nurses (EN) from four hospitals in Malang, Indonesia. Sleep quantity parameters, including total sleep time (TST), sleep onset latency (SOL), wake after sleep onset (WASO), and sleep efficiency (SE), were collected based on 7-day sleep diaries. Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI). Executive function was assessed using a Trail Making Test (TMT). Data analysis was carried out using one-sample T-tests and multiple linear regression with a stepwise model. Around 82% of ER have poor sleep quality (PSQI > 5). Other findings WASO, TST, and SE reported a shorter duration compared to the healthcare population, while the duration of SOL was twice as long. the sources of executive function TMT-A, TMT-B, and TMT B-A were longer, and TMT B/A was shorter than the normal population. TST was negatively related to simple (TMT-A), alternating (TMT-B), and performance difference (TMT B-A) p values =0.000. This study concludes that fast-rotating shift ED nurses experienced poor sleep and executive function. The most significant factors influencing executive function were TST and BMI.
RNA therapeutics: revolutionizing drug discovery
Authors: Vemulapalli Sridhar
Published: October 2023

Not available.
NOVEL MUTATIONS IN THE NON-STRUCTURE PROTEIN 2 OF SARS-CoV-2
Authors: Nakhaei Mohsen , Ghoreshi Zohreh-Al-Sadat , Rezaei Zadeh Rukerd Mohammad , Askarpour Hedyeh , Nasir
Published: October 2023

Background: Mutation in the genome of SARS-CoV-2 may play a role in immune evasion, pathogenicity and speed of its transmission. Our investigation aimed to evaluate the mutations that exist in the nsp2.

Materials and Method:  RNA was extracted from nasopharyngeal swabs from 100 COVID-19 patients. RT-PCR was performed on all samples using nsp2 specific primers. Following gel electrophoresis, the bands were cut, purified, and sequenced using Sanger method. After sequencing, 90 sequences could be used for further analysis. Bioinformatics analysis was conducted to investigate the effect of mutations on protein structure, prediction of homology models, phylogeny tree.

Results: The patients' mean age wa

Background: Mutation in the genome of SARS-CoV-2 may play a role in immune evasion, pathogenicity and speed of its transmission. Our investigation aimed to evaluate the mutations that exist in the nsp2.

Materials and Method:  RNA was extracted from nasopharyngeal swabs from 100 COVID-19 patients. RT-PCR was performed on all samples using nsp2 specific primers. Following gel electrophoresis, the bands were cut, purified, and sequenced using Sanger method. After sequencing, 90 sequences could be used for further analysis. Bioinformatics analysis was conducted to investigate the effect of mutations on protein structure, prediction of homology models, phylogeny tree.

Results: The patients' mean age was 51.08. The results revealed that 8 of the 17 nsp2 mutations (R207C, T224I, G262V, T265I, K337D, N348S, G392D, and I431M) were missense. One deletion was also found in nsp2. Among nsp2 missense mutations studied, K337D and G392D increased structural stability while the others decreased it. The homology-designed models demonstrated that the homologies were comparable to the sequences of the Wuhan-HU-1 virus.

Conclusion: Our study suggested that the mutations as K337D and G392D modulate the stability of nsp2 and tracking viral evolution should be implemented and vaccine development updated.

s 51.08. The results revealed that 8 of the 17 nsp2 mutations (R207C, T224I, G262V, T265I, K337D, N348S, G392D, and I431M) were missense. One deletion was also found in nsp2. Among nsp2 missense mutations studied, K337D and G392D increased structural stability while the others decreased it. The homology-designed models demonstrated that the homologies were comparable to the sequences of the Wuhan-HU-1 virus.

Conclusion: Our study suggested that the mutations as K337D and G392D modulate the stability of nsp2 and tracking viral evolution should be implemented and vaccine development updated.
LIVER DISEASE & SICKLE CELL DISEASE: AUTOIMMUNE HEPATITIS MORE THAN A COINCIDENCE; A SYSTEMATIC LITERATURE REVIEW.
Authors: Lynch Kelvin , Mega Andrea , Piccin Andrea , Daves Massimo , Fogarty Helen
Published: October 2023

In patients with SCD, chronic liver damage is a common manifestation. More than 50% of SCD patients have elevated liver enzymes. Common underlying aetiologies include sickle cell hepatic crisis, viral hepatitis, sickle cell intrahepatic cholestasis and hepatic sequestration in the acute setting, and cholelithiasis and iron overload in the chronic setting. Autoimmune hepatitis (AIH) is a rare disease that appears to occur more commonly in the sickle cell disease (SCD) population than in the general population. There are many schools of thought as to why this is the case, including the phosphatidylserine hypothesis, the heme inflammatory hypothesis, the complement generation hypothesis, and the transfusion alloimmunization hypothesis.
 
Due to the natural history of the two illnesses, SCD is almost always diagnosed first in cases of dual pathology. Symptoms such as jaundice, fatigue, and abdominal pain are common in SCD, as are abnormal liver function tests (LFTs). These abnormalities, attributed to the other more frequent liver involvements in SCD, can lead to delays in AIH diagnosis in this population.
Corticosteroids, sometimes with other immunosuppressive agents, such as azathioprine, are the cornerstone of acute AIH treatment (4). However, corticosteroid use in the SCD population has been shown to carry an increased risk of vaso-occlusive crises (1, 5), providing a treatment dilemma.
 
The following is a review of AIH in the SCD population, where we explore the pathophysiology behind the association between the two disorders, discuss an approach to investigating abnormal LFTs in SCD, and examine treatment options in this population with co-existing diseases.
Aberrant protamination in sperm correlates to anomalous nuclear and cytoplasmic architectures in infertile males with sperm dysmorphology
Authors: Jiang Huan , Huang Chu-Jie
Published: October 2023

Aberrant sperm protamination is linked to sperm dysmorphology and nuclear chromatin condensation. Yet, its effects on sperm cytoplasmic maturation remain largely unexplored. The relationships of protamines, sperm morphology, DNA damage, and cytoplasmic remodeling were illustrated in this study to provide fresh perspectives on the mechanisms of male infertility. A total of 205 infertile males were allocated into 5 groups according to the percentage of spermatozoa exhibiting abnormal morphology within their samples. Sperm concentration, motility, abnormal sperm morphology, cytoplasmic droplets (CDs), and excess residual cytoplasm (ERC) were analyzed according to the World Health Organization manual (2010). Sperm nuclear vacuoles (NVs) were determined by propidium iodide (PI) staining. Sperm protamine expressions (P1 and P2) were detected by western blot. DNA damage was measured by acridine orange test (AOT) to calculate the proportion of sperm with single-strand DNA breaks (SSBs). Our data showed that sperm concentration and motility in infertile males significantly decreased with the severity of abnormal sperm morphology (both P < 0.01). P1 level, P1/P2 ratio, and SSB rate increased with the severity of sperm dysmorphology, whilst the P2 level decreased (all P < 0.01). NVs, CDs, and ERC were more common in males with sperm dysmorphology and positively correlated with the SSB rate (all P < 0.01). The relationships between the SSB rate and the P1/P2 ratio were also significant (P < 0.01). Aberrant protamination may cause sperm dysmorphology and compromise male fertility by impairing sperm’s nucleus and cytoplasm maturation, with the P1/P2 ratio potentially serving as a valuable indicator of sperm quality and male fertility.
Factors Associated with Deterioration in Quality of Life of Subjects after Maxillofacial Fractures - A Prospective Study
Authors: Adetayo Adekunle Moses , Somoye Mayowa Solomon , Fasesan Oluwatoyin Adetutu , Oyedele Ayodeji Titus , Adetayo Modupe Olusola
Published: October 2023

Introduction:

Maxillofacial fractures (MFs) are quite common and are managed by oral and maxillofacial surgeons. Despite these interventions, a pre-traumatic facial profile is often not achieved with consequent social and psychologic consequences.

Materials and Methods:

Patients with fractures to the middle and lower third of the face that presented within 48 hours and healthy controls (subjects without facial fracture) that were sex- and age-matched with the fracture patients were recruited into the study. World Health Organization Quality of Life - Brief Version (WHOQOL-BREF) questionnaire was used to compare the Quality of Life (QoL) values according to age, gender, educational status, employment status, marital status, site of trauma and type of fracture.

Results:

Only the age of subjects was associated with deterioration in QoL after MF while other variables were not.

Discussion:

Increasing age of the patients was associated with higher QoL possibly because those with age <30 years are single and unemployed and may have fear and anxiety that the fracture could affect their chances of getting married or being employed, causing reduced QoL. Psychosocial rehabilitation is very important in patients with MF, especially for the young age group.
Cytarabine and the eye: Exploring the benign yet debilitating corneal epithelial toxicity
Authors: Singh Kirti J , Agrawal Nikhil , Srivastava Krati , Didel Siyaram , Bhatnagar Kavita , Tandon Manjari , Meena Seema , Paharia Nidhi
Published: October 2023

This case report discusses a rare, but significant side effect of intravenous cytarabine chemotherapy: corneal epithelial toxicity. A 10-year-old male diagnosed with acute lymphoblastic leukemia (ALL) presented with severe symptoms of corneal epithelial toxicity just 3 days after starting intravenous cytarabine. The patient was successfully treated with a combination of moxifloxacin and dexamethasone eye drops and tear substitutes. The discussion highlights the need for ophthalmic evaluation and prophylactic topical corticosteroids to prevent corneal epithelial toxicity in patients receiving systemic cytarabine. While corneal epithelial toxicity is a benign side effect in a malignant disease, the suffering of an already debilitated patient is significant. This case report emphasizes the importance of understanding the adverse reactions of chemotherapy and the need for preventive measures.
Atypical optic neuritis in a keratoconus patient and literature review
Authors: Chaturvedi Isha , Monga Sumit , Reddi Rajshekhar , Nanda Geetanjali
Published: October 2023

Myelin oligodendrocyte glycoprotein antibody disease-optic neuritis (MOGAD-ON) is an uncommon form of demyelinating optic neuritis, which may be potentially blinding. Keratoconus (KC) is a noninflammatory, progressive ectatic corneal disorder often affecting young adults, leading to visual dysfunction. A singular account of the coexistence of unilateral KC with bilateral (BL) MOGAD-ON has been reported before. Our report narrates the experience of managing the visual deficit due to BL MOGAD-ON in a patient with BL KC, an association hitherto unreported so far. The emphasis is on highlighting the diagnostic approach and stressing the refined principles of management of optic neuritis in conjunction with the neurology team.
Phthiriasis palpebrarum: A case report and brief review of literature
Authors: Yuan Meng Xia , Li Yuan Cun , Mai Xiao Ting , Lou Zhi Yin , Zhang Ri Ping
Published: October 2023

Phthiriasis palpebrarum (PP) is a rare infection of the eyelid caused by pubic lice, often confused with other causes of blepharoconjunctivitis. In this study, we report a case of a 3-year-old girl with PP who was treated for conjunctivitis in the past month due to itching and eye irritation in the right eye. Slit-lamp examination revealed dense activity and translucent lice and eggs. For treatment, the lice were first mechanically cleaned, eyelashes were removed from the base, eggs and lice were removed from the eyes, and then tobramycin eye drops was administered to prevent conjunctivitis. A re-examination done 1 month later showed no recurrence.
Nanophthalmos in a case of Alport syndrome: A unique presentation
Authors: Chahar Annu , Revankar Aishwari , Ahluwalia Navjot Singh , Multani Priyansha , Sen Alok
Published: October 2023

A 20-year-old male having a positive family history of Alport syndrome presented to us with bilateral sensorineural hearing loss, hematuria, anterior central lenticular opacity in the right eye (RE), and anterior lenticonus in the left eye (LE). The patient had high hyperopia of +10 and +11 Diopter sphere in RE and LE, respectively. The anterior chambers (AC) were shallow (peripheral AC depth, Van Herick grade 1 and 0) with occludable angles on gonioscopy in both eyes (BE), which led us to suspicion of nanophthalmos. The axial length of ~15.35 mm and retinal–choroidal–scleral thickness of ≥2.20 mm in BE, on B scan, confirmed the diagnosis of nanophthalmos. We report this unique case presenting with phenotypes of two genetically diverse disorders, which, to our knowledge, has never been reported before.
Amantadine-induced keratopathy
Authors: Mohata Nehal , Chatterjee Samrat , Gomase Sharad N , Agrawal Deepshikha
Published: October 2023

Amantadine-induced corneal epithelial disease has been reported less frequently than corneal edema. We report an elderly patient with Parkinson's disease who developed superficial punctate keratitis, corneal epithelial hypertrophy, and visual disturbance following treatment with amantadine. The symptoms and signs resolved completely on discontinuation of amantadine.
Toxic optic neuropathy and acute angle closure secondary to divalproex sodium – A rare case report
Authors: Chaurasiya Suraj K , Agarwal Pradeep , Kumar Mukesh
Published: October 2023

This study aims to report the side effects of oral divalproex sodium in a 55-year-old woman presented with a bilateral sudden painless decrease of vision and frontal headache and nausea, causing unique development of optic neuropathy and secondary acute angle closure (AAC). She gave a history of taking oral divalproex sodium for her migraine headache for 2 weeks. On examination, the patient was found to have secondary AAC, optic neuropathy with high intraocular pressure, and optic disc edema in both eyes (BE). The patient was treated with topical medications. The best-corrected distance visual acuity revealed an improvement of 20/30 from hand movement in BE within 2 weeks from the initial presentation. The ocular side effect, induced by divalproex sodium and possibly even after withdrawal from the drug, on time early detection of secondary AAC, and optic neuropathy will improve the management and give optimal results.
Transvitreal fibrinoid reaction
Authors: Sinha Ayushi , Dodla Manaswini
Published: October 2023

Transvitreal fibrin web is an uncommon consequence of pars plana vitrectomy, seen predominantly in diabetic patients. It is an early postoperative response and is treated with topical corticosteroids, although some cases may warrant the use of tissue plasminogen activator intravitreally, or re-surgery as in our case. Fibrin web should be differentiated from endophthalmitis so as to avoid panic and improper management.
Traumatic lenticular abscess or traumatic cataract: A clinical riddle, diagnosis, and management
Authors: Lakshmipathy Meena , Kashyap Himanshu , Nangia Purna , Raman Rajiv
Published: October 2023

A lenticular abscess is an uncommon condition occurring after penetrating trauma, metastatic spread, and intraocular surgery. We report a unique case of lenticular abscess that mimicked a traumatic cataract. A 28-year-old man underwent trauma while working on a farm in the left eye. On ophthalmic evaluation the anterior capsule was focally opaque, giving the appearance of a traumatic cataract. Corneal scraping and microscopy, B scan ultrasonography was done as part of complete evaluation. An extracapsular cataract extraction with antibiotic wash was done. Culture of lenticular matter, after 48 hours revealed gram-negative bacilli, i.e. Pseudomonas stutzeri. Patient was treated with topical antibiotics. Intra-ocular lens implantation was done, in a staged manner with favourable outcomes.
Pseudo optic disc duplication in association with posterior staphyloma
Authors: Telavane Jui , Nene Amit S , Pirdankar Onkar H , Shenoy Pratik , Ramteke Pushpanjali , Rawlani Hitesh , Shah Smitesh
Published: October 2023

We report a case of 67 years old female diagnosed with pseudo-duplication of the optic nerve in association with posterior staphyloma. Her best corrected visual acuity in the right eye was finger counting close to face and 6/9 in the left eye. The anterior segment findings were normal however in the left eye; a vertically oval and excavated lesion was present nasally, with vessels dipping in the excavation similar to the optic disc. SD OCT of the pseudo-disc in the left eye revealed an excavation corresponding to the pseudo-disc, whereas the right eye was normal. Orbit MRI did not reveal any true duplication of the optic nerve or associated pathology. The pseudo-optic disc does not require any treatment as it does not impair visual acuity and patients are usually asymptomatic.
Cataracta octopoda: Complex anterior pyramidal and sutural cataract simulating an octopus configuration
Authors: Sarath S , Balaji Akshaya , Sandhu Neha
Published: October 2023

A middle aged man presented with glare in right eye. On slit lamp examination, he had lenticular opacity in both eyes emanating from central suture with pyramidal projection above the anterior capsular surface with radiating spokes simulating an octopus like configuration which was confirmed on anterior segment tomography. Hence we describe a special entity cataracta octopoda which is a combination of anterior pyramidal and sutural cataract. Posterior segment evaluation was unremarkable. His low vision was attributable to amblyopia developed due to lenticular opacity. However cataract surgery was offered to him in both eyes primarily to treat glare as well as an added benefit of improving some vision due to the aberrated lens with central opacity. He had gained few lines of vision with resolution of glare symptoms.
Case report – Complete visual recovery in a case of planum sphenoidale meningioma
Authors: Saini Aarushi , Sharma Pradeep
Published: October 2023

Reporting a case of a 57-year-old male with progressive visual and field loss diagnosed with planum sphenoidale meningioma after further investigation. The patient initially had difficulty in near work, which further progressed to severe visual loss in the left eye and almost a complete field defect in the right eye after which he underwent imaging. A planum sphenoidale meningioma was reported on imaging, and the patient underwent an excision surgery. At five-month follow-up postsurgery, a complete visual recovery was seen which was maintained at one-year follow-up as well. Thus, early recognition and timely management of planum sphenoidale meningiomas can lead to full visual recovery.