bluuebunny/crossref_metadata_2025 huggingface dataset:
IoT Based Earthquake Detection System
Authors: Bahari Norfatihah , Nor Azmi Nor Irfan Multazam , Nasrudin Mohd Wafi , Che Yob Rashidah , Ramli Nur Hidayah , Lago Herwansyah
Published: September 2024

This paper proposes an IoT based Earthquake Detection System for the early warning and quick detection of the earthquake. Earthquakes are one of the rare natural disasters in Malaysia but when the earthquake happened, it could damage infrastructure and cause deaths. This system is aimed to monitor the earthquake levels and warn people about earthquake dangers. To detect the vibration on the ground surface, an accelerometer has been connected to the microcontroller Arduino Uno R3. Then NRF24L01 transceiver module has been used to connect between the transmitter and receiver part. In order to receive the notifications about the earthquake, the ESP8266 Wi-Fi module is linked to the Blynk App. This proposed system is very user-friendly and economical, making it favourable to be used in the earthquake zones.
Evaluation of Potential Use of Multi-Level Sprayer and Electronic Controlling in Simple Wet Scrubber for CO2 Removal and Water Usage Efficiency Enhancement
Authors: Berlianti Berlianti , Agus Indra , Berlianti Rahmi
Published: September 2024

There are several strategies that can be used to reduce pollutants and carbon dioxide (CO2) from smoke during combustion, and one of them is using a wet scrubber sprayer. A multi-level sprayer had been studied, but it was investigated without considering electronic control. Therefore, the work evaluates whether applying a multi-level sprayer with electronic control can reduce the value of CO2. The study’s objective is to assess the potential utilisation of multi-level sprayers and electronic control in determining the efficiency of a basic wet scrubber for removing CO2 generated from burning garbage, particularly dry waste like paper, with the additional goal of minimising water usage. The system will be built in a small and simple wet scrubber with dimensions of 60 cm in height and about 40 cm in length and width. CO2 value and water usage in the wet scrubber will be measured. The results from implementing the one-level, two-level, and three-level sprayer with electronic control were compared and benchmarked with the value without a sprayer and electronic control. The work showed that the design leads to an improved water usage efficiency of the wet scrubber and reduced CO2 value.
Chattering Analysis of an Optimized Model Free Sliding Mode Controller for a DC Motor Speed Control
Authors: Priatna Edvin , Hartati Rukmi Sari , Manuaba Ida Bagus Gede , Widyantara I Made Oka , Hiron Nurul
Published: September 2024

The purpose of this study is to examine the chattering phenomenon in DC motor speed control technique using Model Free Sliding Mode Controller (MFSMC). The method used is to manipulate the swithing tnah function and swithing sign function in the Grey Wolf Optimizer (GWO) model and Velocity Aided Grey Wolf Optimizer (VAGWO) algorithm. The model is analysed by MATLAB and SIMULINK programs through control model and DC motor model. The study results show that chattering of DC motor speed control is greatly eliminated by using the hyperbolic tangent function (tanh) instead of the signum function. Therefore, it can be concluded that the performance of MFSMC can be greatly improved by manipulating the switching function. The tanh switching function in motor speed control can affect Gradual Change so as to reduce the possibility of sudden or drastic changes in control output that can cause chattering, besides the tangent switching function can help reduce system sensitivity to disturbances or noise. The use of MFSMCs with hyperbolic switching functions can lead to an increase in the lifetime of electric motors, and improve the reliability of power quality in grid systems.
Improvement of Modeling of Laminar Flows in Pressure Collector-Pipelines
Authors: Cherniuk Volodymyr , Kravchuk Oleksandr , Fasuliak Vadym , Cherniuk Matvii
Published: September 2024

In the now-a-day’s methods of hydraulic calculation of pressure collector-pipelines, the value of the coefficient of hydraulic friction (Darci coefficient) is assumed to be constant. However, the fluid flow rate along the collector pipeline is variable. It increases along the pipeline at the expense of fluid inflow from jets through inlets in its wall. In the initial segments of long CP the fluid flow is laminar. Farther, with the increase of fluid flow rate, a turbulent stream is formed. In this paper, laminar streams are considered. The variability of Darci coefficient is taken into account. Based on the differential equation of enforced variable flow rate fluid flow along the stream, a mathematical relationship for calculating the fluid inflow into the collector-pipeline has been derived. A formula for calculation of variable along the stream total working head in a collector-pipeline is obtained. The calculational relationships take into account geometric parameters of the CP, the angle of inflow of the jets to the stream, the angle of inclination of the pipeline to the horizon.
Wave Force on Breakwater with Multiangle Oblique Waves During Monsoon Season
Authors: Ramli Mohd Amin Hakim , Ishak Shahida , Mustapa Muhammad Adli , Rozali Rohaizad Hafidz , Mokri Kamarul Nasser , Mustaffa Kamal Iwan Zamil , Ariffin Effi Helmy , Ahmed Yaseen Adnan
Published: September 2024

A breakwater is a structure constructed near a coastline to safeguard the area from the force of waves and reduce erosion. Waves exert hydrodynamics forces on the structure by applying pressure momentum. It functions as a barrier that absorbs the energy zone waves, thereby producing calmer zones behind it. To withstand the impact of waves, breakwaters can be constructed from a variety of materials, including concrete slabs, rocks, and steel. The magnitude of force obtained from a wave pressure acting on a breakwater refers to the deformation of the structure resulting from force impact. The objective of this study is to analyse the wave force acting on a breakwater using computational fluid dynamics software that simulates the high wave condition operating on the breakwater. The location of the case study is the Universiti Malaysia Terengganu coastal protection which is facing South China Sea. When waves breach on the breakwater during the monsoon season, impact forces result in increased local pressure and dynamic loading. The wave characteristics of 5°, 15°, 35°, and 75° oblique waves were simulated to evaluate the impact of forces on the breakwater structure. The results illustrate the forces exerted on the breakwater by waves with varied characteristics, wave angles, and the occurrence of deformation-related phenomena. The simulation results show that as the oblique wave angle increases, the pressure force also increases simultaneously. The highest wave force acting on the breakwater is at the oblique wave angle of 75° with 5457.22 N and 105.76 kPa pressure.
Experimental and Theoretical Investigation of the Response of the Liquid Level Controller
Authors: Azeez Arab Ghazi , Saleh Khidhir Nooraldeen , Mohammed Mostafa Anwar
Published: September 2024

This paper shows a mechanical manufactured design test for a water tank level control system. The purpose of this mechanical controller is to maintain the water level in the tank at the desired level as the process operator wish according to the manufacturing process requirements. That means the process operator as the observer have the ability to change the setting of input water level to control the actual output water level in the tank. The problem which is frequently encountered in manufacturing processes lines and even in nuclear power stations is to maintain the water level in the tanks at its desired level as the wish of human operator process. So, the purpose of this study is to submits a controller system to compensates and fill deficiency to the needs for a cheap, reliable, low maintenance controller. As a used method of this paper, an experimental results to control the system response had been tested. A proposed mathematical model had been derived, and simulated on a model using MATLAB/Simulink program. The experimented and the simulated results had been compared in different responses to give at the end a satisfactory level control results of the water tank. The major conclusions reached in this paper are a proposition of a simple automatic mechanical water level controller in a tank, which has the ability to accept manually step input changes of the water level, with a pressure sensor works as a system feedback. Being in mind that the manufacturing of the four sides of the water tank also all valves and pipes are taken as a plastic transparent made, to interact the students educational criteria with the main response controller of the system. Finally a comparison trend being set up between both results to show off the changing remarks happen to the system in both cases of operation.
Steady Flow of Thermo-Viscous Fluid between Infinitely Stretched Porous Parallel Plates-A Perturbation Technique
Authors: Nalimela Pothanna , Joshi Srinivas , Podila Aparna , Podila Padmaja , Pemmaraju Rajashekar
Published: September 2024

The steady flow of a thermo-viscous incompressible fluid bounded between porous parallel plates is examined in this paper. The governing equations of the flow are coupled in the velocity and temperature field. The solutions of velocity and temperature are obtained using a powerful and most elegant method called perturbation technique. The closed form solutions of the velocity and temperature distributions are obtained when thermo-stress coefficient is far less compared to strain thermal conductivity coefficient and coefficient of cross viscosity. The variations of velocity and temperature distributions on the flow field have been discussed with the help of illustrations. The effect of various flow parameters on the flow field have been discussed with the help of graphs. The rate of variation of the velocity is observed as far less when compare to the temperature of the fluid. This effect is due to the porosity and suction/injection of the flow passes through the horizontal parallel plates. This study includes the applications in extraction of petrol and oils from porous rocks, chemical reactors, and human cardiovascular system and in several engineering devices such as heat and mass exchanges. The results of the present study will hopefully enable a better understanding of nuclear and clinical applications.
Estruturas produtivas regionais com matrizes insumo-produto e ilustração de aplicação ambiental
Authors: Furtado Bernardo Alves , Lima Gustavo L. Rocha , Lopes Olandia Ferreira
Published: September 2024

Este artigo apresenta uma alternativa para a regionalização da matriz de insumo-produto, permitindo análises econômicas detalhadas em diferentes escalas, ao considerar as especificidades produtivas de cada região. Decompondo a matriz de coeficientes técnicos em submatrizes flexíveis, é possível representar as necessidades de insumos dos setores regionais como sendo produzidos localmente por agrupamentos de municípios ou pelo restante do país. Dessa forma, é possível avaliar a suficiência da produção local e a necessidade de importar insumos de outras regiões. Utilizamos o quociente de localização simples (SLQ) e o quociente de localização cruzada entre indústrias (CILQ), além da extensão proposta por Flegg, Webber e Elliott (1995) e empregada por Pangallo et al. (2023), para medir a concentração regional das atividades setoriais. Esta metodologia aprimora a capacidade de identificar setores-chave e prever impactos econômicos e ambientais, fornecendo uma ferramenta robusta para a formulação e análise de políticas regionais e ambientais.
NMR Spectroscopy: A Harbinger of Scientific Innovation
Authors: Vijay Adnani Esha
Published: September 2024

Nuclear Magnetic Resonance (NMR) spectroscopy which originates from the scientific pursuits of Bloch and Purcell in the 1940s is a pivotal invention that has profoundly impacted scientific and medical technology. This technique involves manipulating the magnetic properties of atomic nuclei (particularly hydrogen), and analyzes their spins in order to determine molecular structures and dynamics of chemical compounds. Moreover, NMR spectroscopy can be applied to a variety of different scientific fields, such as physics where it is rooted in the manipulation of nuclear spins within magnetic fields, elucidating spin states through resonance phenomena. Additionally, the chemical shift scale is crucial in NMR spectroscopy as it distinguishes different nuclei based on their local environments, essential for molecular identification in chemistry. Beyond scientific research, NMR's integration into Magnetic Resonance Imaging (MRI) revolutionized medical diagnostics, due to its ability to enable non- invasive imaging of human anatomy and pathology. Its integration into different types of MRI has allowed medical practitioners to view various anatomical components such as organs, bones, blood vessels, muscles, etc., and determine various diseases and illnesses in the body. From disease detection and diagnosis to treatment monitoring, MRI serves as a vital tool for disease detection and treatment planning. Moving forward, ongoing advancements promise to expand NMR's capabilities in fields such as materials science, environmental studies and quantum computing, underscoring its pivotal role in advancing knowledge and technology across diverse disciplines.
Predicting Respiratory Diseases Attributed to PM2.5 Air Pollution in Nairobi County Using Random Forest Model
Authors: Atieno Okeyo Valine , Orowe Idah , Otienoh Oguge Nicholas
Published: September 2024

This study investigates the predictive capability of a Random Forest model in identifying respiratory diseases attributed to PM2.5 exposure in Nairobi County. Leveraging a comprehensive dataset encompassing demographic and air quality variables, the model demonstrated robust performance metrics, achieving an accuracy of 79.97% and an area under the curve (AUC) of 0.872. These results highlight the model’s effectiveness in distinguishing between respiratory and cardiovascular conditions. The model’s sensitivity and specificity were 81.88% and 73.27%, respectively, indicating a strong ability to correctly identify both true positives and true negatives. Analysis of feature importance revealed that age and PM2.5 concentrations were the most influential factors in predicting health outcomes, emphasizing the significant impact of air pollution and demographic factors on respiratory and cardiovascular health. Furthermore, the consistent train and test error rates across varying training set sizes suggest the model’s stability and generalizability. This study underscores the importance of addressing air quality issues to mitigate the health impacts of PM2.5 exposure in urban settings.
Efficacy of Structured Teaching Programme on Hazards of Plastic Waste Among Rural People in Selected Area at Namakkal District
Authors: E Revathi
Published: September 2024

Background:- Plastic is the general common term for extensive variety of artificial or semi artificial natural amorphous stable substances derived from oil and herbal fuel. . Plastic is utilized on a daily basis in the sector. Plastic is utilized on a daily basis worldwide.. The hazards of plastic wastes are numerous due to the plastic wastes the human, animal, environment are affected. Methods This study was conducted using a quantitative evaluation perspective, which involved a pre-experimental one- group pretest and post-test design.. The study was conducted in the rural area of Manickampalayam. In order to identify the pattern, a non-probability convenient sampling method. approach was utilized for a sample size of 50 rural people. The study participants were provided with an explanation of its nature and oral consent was obtained. Demographic variables were used to gather the data, which included age, sex, training, profession, earnings, faith, type of circle of relatives, marital popularity, and dependent questionnaires. The post was changed to be conducted on the 7th day. The facts have been scrutinized. Results: A significant difference has emerged during the understanding phase of putting up a test. The structured teaching program was effective among rural people due to the calculated paired 'T' test value 8.891 being significantly The table value of 1.96 is not as high as it should be at p < 0.05.. The acceptance of hypothesis H1 was granted.
The application of artificial intelligence technologies in management
Authors: Čyras Giedrius , Janušauskienė Vita Marytė
Published: September 2024

The digital transformation of our world and the inevitable interplay between people, digital technologies, and physical assets are creating a rapidly changing and complex environment that requires organizations to be more agile and ready to embrace new ways of working. Businesses are realizing the need for change to succeed in the digital age. In the period of global digitalization, information and communication technologies are one of the most important aspects of existence for a business, which makes it more efficient and effective and allows you to quickly respond to a rapidly changing external environment, as well as customer needs. At the moment, there is a high interest in the possibilities of artificial intelligence for use in business tasks in the world, as there are already examples of successful implementation when artificial intelligence and machine learning are fundamentally changing the way people work and increasing the profits of organizations in different countries. The purpose of this case study is to consider how artificial intelligence affects the value proposition and how elements of the business model change when using this technology. The paper presents the existing examples of the use of technology, the consequences of its application and the prospects for using artificial intelligence as one of the advanced digital transformation technologies. With a literature review and case studies analysis, the article aims to provide a comprehensive understanding of the impact of AI on business models, drawing from both theoretical insights and practical experiences documented in case studies. This approach allows for a nuanced exploration of the topic and contributes to advancing knowledge in the field.
The impact of malnutrition on dental health of 12-year-old children: a study on permanent teeth caries, cariogenic bacteria and salivary IgA
Authors: Fathallh Ausama , Al-Sudani Fouad , Almuhssen Sabreen , Hassoon Shaymaa
Published: September 2024

Introduction: Malnutrition in children is epidemic in developing countries. Several health issues and consequences are believed to develop due to this phenomenon. Children’s oral health is also affected by malnutrition. The main aspects of oral health status are caries experience, the existence of cariogenic bacteria, and salivary immunoglobulin A.

Materials and methods: This comparative study included 87 school children aged 12 years. Participants with systemic disease were excluded. An oral examination was conducted to record the DMFT score, then saliva samples were collected in the morning using an unstimulated method. Salivary IgA were analyzed using Sandwich ELISA technology. Malnutrition was based on body mass index (BMI) which was computed as weight/height2 (kg/m2). Ethical approval was granted by the ethical committee at the Faculty of Dentistry. Informed consents from children’s parents were gained prior to the start of the study.

Results: Compared to the normal weight group, the results of this study showed that overweight and obesity are inversely correlated with the mean DMFT and the number of S. mutans and S. sobrinus. Salivary IgA was negatively correlated with overweight and obesity, compared to normal weight group.

Conclusions: Children suffering from malnutrition are at risk of developing oral health diseases. Treating malnutrition will therefore improve children’s overall oral health.
Communication scientifique et science ouverte
Authors: Tufféry Christophe , Delvigne Vincent , Fernandes Paul , Garniaux Jérémy , Renault Stéphane
Published: September 2024

Résumé Les travaux du Groupement De Recherche (GDR) « SILEX », qui fédère quatre projets collectifs de recherche régionaux, proposent un inventaire descriptif codifié des formations à silicites et un recueil harmonisé des points de collecte des échantillons présents dans de nombreuses lithothèques. Une plateforme cartographique, une application Web et une application mobile ont été développées et mises en œuvre progressivement depuis 2014. Elles s’appuient sur des solutions propriétaires. Dans le cadre du mouvement de la science ouverte, en particulier depuis la publication des deux Plans nationaux pour la science ouverte en 2018 et 2021, la migration des applications vers des solutions open source a été engagée de même que la publication des données sous licence ouverte. L’article présente un retour d’expériences qui concerne autant les choix techniques que les effets des changements des pratiques numériques pour les chercheurs, leurs méthodes de production et les modalités de partage de leurs savoirs.
Écoles en mouvements et réformes
Authors: Maulini Olivier
Published: September 2024

Résumé L’enseignement change moins sous l’influence des programmes scolaires que ceux-ci ne dépendent de l’évolution de l’enseignement. En passant en revue différentes manières d’anticiper et de conceptualiser les destins possibles de l’instruction publique, on constate que deux modes de régulation du travail scolaire ont souvent été opposés, mais qu’ils peuvent empiriquement converger : une régulation par des procédures bureaucratiques (la lettre de la règle), une autre par les performances finalement réalisées (le chiffre des résultats). Cette double contrainte met en crise et interroge la manière dont le travail des maîtres, mais aussi celui des élèves, est organisé, et comment cette organisation peut se développer.
Écoles en mouvements et réformes
Authors: Simbagoye Athanase
Published: September 2024

Résumé Ce texte aborde la problématique de l’enseignement du français langue d’enseignement en contexte de réforme curriculaire et d’innovation technologique dans une école pilote de Dakar (Sénégal). Son contenu se fonde sur des résultats d’un projet de recherche collaborative mettant en partenariat des chercheurs de la Chaire UNESCO en développement curriculaire de l’Université du Québec à Montréal (CUDC) et de l’Institut national d’étude et d’action pour le développement de l’éducation (INÉADE, Dakar) dans le cadre d’un projet d’intégration des technologies de l’information et de la communication (TIC) dans les apprentissages de base à l’école élémentaire au Sénégal 1 . Le texte montre qu’un enseignement de la langue basé sur une approche par les situations de vie avec intégration des TIC contribue au développement des compétences en littératie chez les élèves. Les améliorations dans les apprentissages en langue constatées lors des activités de lecture et d’écriture dans une classe expérimentale de CM1 y sont décrites en recourant à une double focalisation. Une focalisation qui porte sur le rapport de l’élève à son environnement incluant les TIC et celle qui porte sur l’objet d’enseignement. À cet effet, les perspectives constructivistes et de la cognition située nous servent de cadre de référence pour analyser l’intégration des TIC dans les apprentissages de la langue d’enseignement à l’École Serigne Amadou Aly Mbaye (SAAM).
Écoles en mouvements et réformes
Authors: Houllier Laurence
Published: September 2024

Résumé L’école alternative Nouvelle-Querbes est une école innovante. Elle est, avant tout, un lieu de recherche et de développement, où le leadership de la direction est primordial puisqu’il permet, notamment, dans un contexte de gestion participative d’initier, d’orienter et de légitimer des innovations sur le plan pédagogique et organisationnel. C’est une école en mouvement grâce à sa structure organisationnelle dans un contexte de coéducation tripartite (enfants, parents, équipe-école). En effet, l’implication des parents, des enseignants, des éducateurs, des professionnels, des enfants et de la direction est essentielle, puisqu’elle permet au milieu de s’enrichir et ainsi d’élaborer des pratiques pédagogiques innovantes dont le but est de répondre de manière optimale aux besoins de tous les enfants.
Peut-on se passer de représentations en sciences cognitives ?
Authors: Brouillet Thibaut
Published: September 2024

Dans ce chapitre, nous défendons une approche auto-organisée de la cognition et de l’émotion. Nous montrons en quoi cette approche s’oppose à l’approche représentationnelle classique. L’idée essentielle que nous développons est celle selon laquelle l’évaluation du caractère agréable ou désagréable d’un objet repose sur la dynamique des réponses produites par le participant. Lorsque le participant a l’occasion de produire plusieurs fois la même réponse (condition de fluence), il évalue plus fréquemment des objets sans signification comme agréables, tandis que lorsqu’il est contraint de produire des réponses différentes d’un essai à l’autre (condition non fluente), il juge plus fréquemment les objets à évaluer comme désagréables. Ce résultat n’étant pas sans rappeler la théorie des émotions de W. James (1884).
Peut-on se passer de représentations en sciences cognitives ?
Authors: Celse-Giot Carole , Coutté Alexandre
Published: September 2024

En sciences cognitives, la place accordée à la motricité pour décrire et expliquer la cognition varie grandement d’une approche théorique à l’autre. Dans ce chapitre, nous présentons des résultats qui illustrent les liens existants entre perception visuelle et motricité. Ainsi, plusieurs études recourant aux paradigmes d’amorçages visuomoteur et motorovisuel suggèrent que la perception visuelle est couplée à des anticipations gestuelles. Plus précisément, plusieurs données comportementales montrent que la perception visuelle d’un objet est non seulement tributaire des caractéristiques des actions que l’on a l’habitude d’effectuer sur cet objet, mais elle est également fortement influencée par les caractéristiques de l’action que l’on se prépare à effectuer sur cet objet. L’interprétation de ces effets renvoie à une conception sensorimotrice de l’espace et de la perception visuelle. Plus généralement, la notion de représentation mentale telle que nous la concevons repose sur le déroulement intériorisé de l’action, influencé à la fois par les traces laissées en mémoire et par les événements présents.
Peut-on se passer de représentations en sciences cognitives ?
Authors: Reboul Anne , Wozniak Adrianna
Published: September 2024

Dans la hiérarchie des créatures vivantes proposée par Dennett (1996) (créatures darwiniennes < skinériennes < poppériennes < grégoriennes), l’évolution biologique s’applique activement au niveau darwinienne, alors que les représentations interviennent clairement au niveau des créatures grégoriennes. Ceci suggère l’existence d’un hiatus entre le niveau proprement évolutif (darwinien) et le niveau proprement représentationnel (grégorien). Pour résoudre ce problème, nous examinons deux stratégies : la première consiste à étendre la notion de représentation pour y inclure les adaptations en général ; la seconde consiste à argumenter que les représentations grégoriennes sont des adaptations, résultats de la sélection naturelle. Notre conclusion est que la première stratégie échoue parce qu’il est impossible d’identifier un objet intentionnel pour les adaptations en général. La seconde stratégie, si elle apparaît impraticable dans le cadre de la synthèse moderne avec son insistance sur le sélectionnisme génétique, pourrait rencontrer une issue plus favorable dans le cadre de la synthèse étendue (notamment dans les approches évo-dévo) qui intègrent l’adaptation ontogénétique dans la théorie de la sélection. Néanmoins nous identifions deux questions que cette nouvelle approche devra mettre au clair : l’une concerne une possible confusion entre l’unité de sélection et l’unité d’hérédité ; la seconde révèle le besoin d’estimer si l’attribution d’un rôle sélectif à la variation qui se fait au sein de la synthèse étendue implique l’écart de la causalité de type téléologique propre à la synthèse moderne.
Les processus stratégiques
Authors: Taupin Benjamin
Published: September 2024

Ce chapitre propose une lecture des processus stratégiques sous l’angle de l’approche critique en management. Son ambition est de souligner l’intérêt de dévoiler les rapports de domination à l’œuvre dans les organisations. Plus précisément, à travers trois exemples d’actualité, il montre en quoi la perspective critique permet d’identifier les risques et les limites de l’inertie et de la proactivité endogènes. Le premier exemple, fondé sur le cas de Volkswagen, illustre comment un style de management autocratique, qui néglige la dimension humaine, peut conduire à un aveuglement fautif. La deuxième illustration examine le cas d’Uber et soulève les limites d’une proactivité endogène fondée sur un management algorithmique. Enfin, le troisième cas traité, qui étudie l’entreprise Michel et Augustin, met en garde contre le danger d’une proactivité endogène simulée sous la forme d’un « management par le fun ».
Entre langue et parole, le métier d’orthophoniste
Authors: Lainé Anne
Published: September 2024

Anne Lainé est orthophoniste dans un cmp de Toulouse ; elle sera la première à nous accompagner dans cette découverte de la profession. Linguiste et orthophoniste, elle nous fait voyager au cœur des théories linguistiques de façon claire et simple, nous permettant ainsi de repérer les différents filtres qui peuvent être utilisés pour parler du langage. Les présentations de cas qu’elle a retenues illustrent directement l’emploi de ces outils exigeants. À partir de cet éclairage scientifique riche, elle montrera la spécificité de l’orthophonie, la place des premières expériences langagières bien avant les premiers mots. Surtout, elle nous expliquera que le langage ne s’apprend pas, qu’il est un outil qu’on saisit dans la relation aux autres. Son désir profond de faire émerger une science de l’orthophonie est une fierté et un défi pour les professionnels actuels ou futurs : une invitation à rompre avec la timidité et la modestie de nombreux orthophonistes.
Entre langue et parole, le métier d’orthophoniste
Authors: Jaffredo Nadine
Published: September 2024

Nadine Jaffredo s’intéresse à la question de l’écriture dans ses liens entre corps et langage. Dans ce texte engagé, elle questionne la part d’humanité en chacun de nous. Elle témoigne du choix qui s’est imposé à elle : ne pas consentir aux injonctions d’évaluation chiffrée en réponse à des visées normatives. Elle nous montre comment, dans le cadre du soin du langage, l’individu devient sujet.
Traité de bioéthique
Authors: Botbol Baum Mylène
Published: September 2024

L’usage de la catégorie de vulnérabilité s’est multiplié dans les textes internationaux de bioéthique et de sciences sociales pour repenser la solidarité face à l’usage abusif du transfert de responsabilités vers les sujets les plus fragiles. Mon extravagante hypothèse sera, dans le sillage d’Emmanuel Levinas, de retourner le sens de la vulnérabilité en en faisant la condition de capabilité de l’humain.
Etre ergothérapeute en psychiatrie
Authors: Lançon Jean-François
Published: September 2024

Après avoir resitué la place et la fonction du dispositif de l’isolement thérapeutique au cœur du traitement institutionnel de la crise psychotique aiguë, l’article s’attache à soutenir l’intérêt de l’utilisation des médiations thérapeutiques pour les patients qui s’y trouvent placés. Le contexte actuel cristallise particulièrement les enjeux autour du recours à cette modalité de soin, qui interroge la nature même du travail pluridisciplinaire autour de l’accompagnement des manifestations les plus extrêmes auxquelles nous confrontent les pathologies psychiatriques. À partir d’une rencontre qui illustre la construction singulière d’un espace de soin, sont proposées des pistes de réflexion sur la place que peut jouer l’ergothérapie afin que prenne sens ce moment aussi intense que fécond.
L’Europe, ses langues. Quelle unité ?
Authors: Esteyries Eva
Published: September 2024

Dans nos sociétés souvent fragmentées par des divisions politiques et culturelles, cette réflexion non exhaustive a vocation à s’intéresser à la capacité de l’Union européenne à perdurer. Sous le prisme d’une culture populiste de plus en plus influente est-il encore possible de faire Europe ? De façon plus générale il s’agit de s’interroger sur le sens même qui est conféré à la notion de populisme. Si, dans l’opinion publique, l’échec des institutions européennes à rassembler semble a priori dominer, est-ce la volonté même d’un vivre ensemble européen qui doit être remise en cause ? Ou plutôt, une certaine notion d’intégration qui revêtirait les caractéristiques d’un élément perturbateur, parallèlement au désir de coexistence pacifique des peuples, qui lui, demeurerait intact ? Dans un monde de plus en plus complexe, l’objectif est de se questionner sur la responsabilité des institutions, les perspectives de l’Union européenne et les solutions capables de répondre à la montée des populismes.
A Rare Case of Retinal Vasculitis in a Patient With Autoimmune Lymphoproliferative Syndrome
Authors: Edwards Christopher M. , Nanda Tavish
Published: September 2024

This report describes a case of retinal vasculitis in a patient with autoimmune lymphoproliferative syndrome (ALPS). A 13-year-old girl undergoing work-up for immune dysregulation was referred for retinal vasculitis. The patient was asymptomatic on presentation, but her retinal examination was remarkable for areas of outer retinal and choriocapillary loss and focal vascular inflammation. Subsequent bone marrow biopsy with genetic sequencing revealed a diagnosis of ALPS, and she was started on immunosuppression. Most cases of ocular ALPS have anterior involvement, but retinal changes may rarely occur in isolation. Patients with ALPS may benefit from routine eye examination and monitoring.

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Ophthalmic Surg Lasers Imaging Retina
2025;56:46–49.]
Restricted Access and Land Control in Tea Farming as a Threat to Gender Equity in Singorwet Ward, Bomet County
Authors: Agnes Chepkirui , Opollo Diana A.
Published: September 2024

In many developing countries assignment of agricultural responsibilities is based on social and cultural norms. In Africa and Kenya, women take on most of the roles that involve spending long hours and use of lots of energy. The research objectives were to examine the effect of restricted access and land control in tea farming on gender equity in Singorwet ward of Bomet County. A cross-sectional study design was used and a sample size of 532 tea farmers’ respondents (comprising 431 male tea farmers and 101 female tea farmers), two directors, and 10 farm laborers were involved in this study. Purposive sampling was used to pick two director zones in the Singorwet ward and stratified random sampling to pick five tea-buying centers within Singorwet Zone and Mugango Zone. Questionnaires, interviews, and observation schedules were used for data collection. From the findings, all major decisions on tea farming rest with the men, as well as all gender equity indices and access to and control of financial services in tea farming. The overall gender parity ratio stood at 0.2 which was in favor of men. This was also evident in directorship where woman directors appeared under nomination and not election. This study recommends thorough community awareness programs on land rights within the Kenyan Constitution 2010.
The Intersection of Racism and Poverty in the Environment: A Systematic Review for Social Work
Authors: Strayer Sara , Stoeffler Stephen W.
Published: September 2024

Social workers are tasked with the responsibility of pursuing environmental justice to diminish environmental risks for impoverished, minority, and disadvantaged communities that have been disproportionately impacted. While social work literature addresses the topic of environmental justice, few articles discuss its root issues of poverty and racism in the environment. Through a systematic review of peer-reviewed journals from 2015 through 2021, this study identified 27 articles that focus on the intersection of social work, environmental justice, poverty, and racism. Findings reveal three common categories of articles, their themes, and publication trends. Social work education was the most common category (40.7 percent), followed by review articles and case studies (37.0 percent), and community-based research (22.2 percent). The results of this study indicate that more research is needed in all areas related to poverty and racism in environmental justice social work.
Fast Estimation of the Lateral Fidelity of Ion Implantation in 4H-SiC through Calibration to JFET Transfer Characteristics in TCAD
Authors: Sakai Kota , Boettcher Norman , Szabo Maximilian , Beuer Susanne , Rommel Mathias
Published: September 2024

In the 4H-SiC device fabrication process, ion implantation of aluminium to form p-regions results in spreading (lateral straggling) from the mask design width by a few 100 nm. This has a significant impact on device performance, so device design must take lateral straggling into account. In this study, the impact of lateral straggling is estimated by applying a Gaussian distribution to one dimensional depth profiles obtained from Monte Carlo simulations. In our studies, this approach reduced the computation time by a factor of 300 compared to two-dimensional Monte Carlo simulations. The parameters describing the Gauss function are determined with the aid of fabricated JFET test structures. The pinch-off behaviour of JFET devices with vertical and horizontal channels was analysed in electrical TCAD simulations and calibrated to the characteristics of the fabricated devices. Ultimately, the electrical characteristics of simulations and measurements were found to be in good agreement.
Doping and Temperature Dependence of Carrier Lifetime in 4H SiC Epitaxial Layers
Authors: Lilja Louise , Bergman J. Peder
Published: September 2024

Thick 4H-SiC epilayers have be grown with n-type and p-type doping in the range 1x1014 cm‑3 to mid 1x1018 cm‑3, with the purpose of investigating the influence of doping on carrier lifetime. Growth conditions were identical for all grown epilayers, except for the dopant gas flow rates. A drastic decrease in carrier lifetime was observed with increasing doping level, in both n-type and p-type layers. The decrease in lifetime could not be related to the Z1/2 center but are rather due to an enhanced effect of direct band-to-band and Auger recombination’s (AR) at higher doping levels. Calculations of Auger coefficients for the recombination’s are indicating Auger recombination’s as the main recombination mechanism at the highest doping levels. Indications are made stronger from the temperature dependence of Auger coefficients. An increased background intensity arises around 400 K during temperature dependent time-resolved photoluminescence measurements of n-type epilayers are observed and are thought to be related to boron impurities.
Coupled Non-Destructive Methods, Kelvin Force Probe Microscopy and µ-Raman to Characterize Doping in 4H-SiC Power Devices
Authors: Vuillermet Enora , Wu Kuan Ting , Sedilot Anael , Deturche Regis , Bercu Nicolas , Usureau Elise , Beal Jérémie , Lazar Mihai
Published: September 2024

Investigation of the doped areas in 4H-SiC power devices has been done by non-destructive characterization methods. It consists of local surface potential measurements by Kelvin Probe Force Microscopy (KPFM) coupled with scanning electron microscopy (SEM) and µ-Raman spectroscopy. Near-field mappings of the devices’ surface have been realized, allowing us to discern the differently doped areas.
Fail-to-Open Short Circuit Failure Mode of SiC Power MOSFETs: 2-D Thermo-Mechanical Modeling
Authors: Kovacevic-Badstuebner Ivana , Race Salvatore , Luethi Noah , Nagel Michel , Grossner Ulrike
Published: September 2024

The short-circuit (SC) performance of Silicon Carbide (SiC) power MOSFETs has been extensively characterized in recent years. During a SC event, a SiC power MOSFET experiences a thermo-mechanical (TM) stress originating from a high temperature change during the SC event and the different coefficients of thermal expansions (CTEs) of source metallization, polySilicon gate, SiC and gate-source insulator. High temperature and TM stress cause the aluminum source metallization to melt, and a crack to form and grow within the gate-source insulation, leading to a short connection between the gate and source terminals typically referred to as fail-to-open (FTO) failure mode. This paper presents a 2-D thermo-mechanical (TM) model of a 2-D MOSFET half-cell for assessing the TM stress in the gate-source insulating layer during SC including the phase change behavior and the temperature-dependent properties of the source metallization. The developed modeling approach allows to assess how different metallization thicknesses and materials affect the TM stress of the gate-source insulation and, hence, enables the development of device design guidelines for improving SC withstand time of SiC power MOSFETs.
Analysis of On-State and Short-Circuit Capability in 3D Trench SiC MOSFET Designs
Authors: Melnyk Kyrylo , Zhang Lu Yang , Gammon Peter Michael , Renz Arne Benjamin , Antoniou Marina
Published: September 2024

Silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors (MOSFETs) are successfully replacing traditional silicon insulated gate bipolar transistors (Si IGBTs) in power applications. Nonetheless, two crucial challenges persist: gate-oxide reliability and a reduced short circuit (SC) withstand time. This paper explores a novel MOSFET structure, which is designed to address these concerns and compares it with existing designs through extensive 3D TCAD simulations. The proposed MOSFET structure features a p-region under the gate, providing a unique configuration for improved performance during SC events. This novel structure is then compared to two commercially realized MOSFET structures. Our structure has a superior on-state performance with a specific resistance of 1.48 mΩ /cm2, showing an improvement by 25 % and 15 %, respectively. It also increases the blocking capability by 100 V and SC withstand time in comparison to the double-trench MOSFET.
Distal deep vein thrombosis: is there a way out of this dark forest?
Authors: Guarascio Matteo , Pititto Gerardo Nicola , Abenante Alessia , Donadini Marco Paolo
Published: September 2024

Isolated distal deep vein thrombosis (IDDVT) represents a common manifestation of venous thromboembolism (VTE), accounting for up to 50% of cases involving lower-extremity deep vein thrombosis (DVT). In contrast to proximal DVT, IDDVT exhibits a higher association with transient risk factors and less frequently occurs spontaneously. IDDVT generally entails a substantially lower risk of proximal extension, pulmonary embolism, post-thrombotic syndrome, and recurrence compared to proximal DVT. Nevertheless, specific patient subgroups, including those with active cancer, prior VTE, unprovoked IDDVT, and involvement of more than one vein, demonstrate a noteworthy recurrence risk. Unlike proximal DVT, the optimal therapeutic management of IDDVT remains uncertain. In clinical practice, the predominant approach for managing IDDVT involves anticoagulation rather than ultrasound imaging surveillance, due to a significant reduction in the risk of proximal extension and recurrence. Conversely, serial imaging is typically preferred for individuals without risk factors for extension or at high risk for bleeding. Finally, anticoagulant duration relies on the different risk of VTE recurrence within the specific patient subgroups considered. This review offers an updated overview of the epidemiology, risk factors, and natural history of IDDVT, emphasizing therapeutic management in accordance with current guideline recommendations and the latest evidence, trying to provide a way out of this dark forest.
The evolving landscape of gene therapy for congenital severe hemophilia: a 2024 state of the art
Authors: Di Minno Giovanni , Spadarella Gaia , Calcaterra Ilenia Lorenza , Castaman Giancarlo , Simioni Paolo , De Cristofaro Raimondo , Santoro Cristina , Peyvandi Flora , Di Minno Matteo
Published: September 2024

Despite major advances in prophylaxis, no repeated dosing regimen with currently employed extended-half-life or non-factor products replaces the advantages of a long-term cure in persons with severe congenital hemophilia A and B (HA, HB). They indeed live with the risk of breakthrough bleedings, and treatment is still invasive, both physically and psychologically. Early studies showed that adeno-associated virus-based in vivo gene therapy (AAV-based in vivo GT), could convert hemophilia persons from a severe to mild a phenotype for years. However, the proportion of the hemophilia population likely to benefit from this transformative strategy was uncertain. Current evidence is expanding the eligibility criteria, and helps to predict risks, complications and unexpected side effects of this advanced treatment. Thus, among future options, AAV-based in vivo GT is likely to become the treatment of choice in HA and HB, if real-life data confirm its negligible short-term adverse events. However, while the global use of AAV-based in vivo GT is endorsed as a key objective of future studies in hemophilia, the liberating capability of a potentially one-off treatment on individuals with chronic diseases for whom lifelong cure has been inaccessible so far remains to be thoroughly recognized by government bodies. This is critical for reimbursement agencies to absorb the cost of the cure and calls for a partnership between health care systems and the pharmaceutical industry. However, bridging the gap between the costs of the advanced treatments approved for commercialization and their readiness to persons with HA and HB is still a challenging task.
Nursing competency model for nurse manager in hospital: a scoping review
Authors: Manoppo Inggerid Agnes , Novieastari Enie , Handiyani Hanny , Nuraini Tuti
Published: September 2024

Clinical and structural shifts represent pattern of change in health care. It requires the development of nurse manager leadership competency.This scoping review was conducted to map the nurse manager competency model in the hospital. Adopt the JBI (Joanna Briggs Institute) methodology for a scoping review. The databases used in this review article include the Scientific Information Database, Google Scholar, ProQuest, PubMed, and Science Direct databases. The search strategy is more comprehensive than the type of study in English, relevant case 15 articles published from 2005-2022. The papers included in the analysis comprised qualitative and quantitative research designs, utilizing keyword combinations such "Nursing competency model for nurse manager." Eligible publications are searched for relevant data, which is then collected in a spreadsheet and imported into Microsoft Word. From there, it is combined into a table with a primary conceptual overview and a description of the study's features. Most studies involve nurse managers at multiple levels (top and middle managers). From the mapping, there are 14 nurse manager competency models. Most of the models emphasize the importance of communication competence, leadership skills, and business management accompanied by an attitude of professionalism and qualified knowledge. The essential skills that a nurse manager must possess emphasize the importance of communication competencies, leadership skills, and business management along with professionalism and knowledge.