bluuebunny/crossref_metadata_2025 huggingface dataset:
Le design pour les matériaux de construction : qualification de la contribution du design chez Saint-Gobain
Authors: Cotellon Katie , Cochet Anne-Cécile
Published: March 2024

Dans le design des habitations il existe une catégorie de technologies parfois cachées, pourtant omniprésentes dans la vie quotidienne. Ce sont les matériaux dits « de construction ». Ils revêtent un statut particulier, dont le design peut être interrogé non seulement sous l’angle de la science des matériaux, mais au regard du contexte historique et philosophique qui les a vus naître. Le matériau de construction, au-delà d’être une matière physique, est l’incarnation du mouvement de la fabrication industrielle des logements héritée de l’après-guerre et donc des modes de vie contemporains. Dans l’ère de l’anthropocène, les logiques constructives deviendront à la fois motivées par les politiques de logement et par les enjeux de vulnérabilité des sociétés humaines et des écosystèmes tels qu’ils sont scénarisés dans les rapports du GIEC (Groupe d’experts intergouvernemental sur l’évolution du climat). Si les matériaux de construction sont admis comme « concept » et non plus seulement comme matière, alors comment relire leurs desseins dans un environnement requalifié par des urgences de nature nouvelle ? Leur statut intermédiaire, entre matière et produit, soulève la question de la manière de les concevoir. Quelles pratiques spécifiques du design les matériaux de construction induisent-ils ? Le présent article se propose d’expliquer comment le design chez Saint-Gobain tente par la spécificité de ses approches, d’opérer la mise en œuvre d’un design pour les matériaux de construction dans ce nouvel environnement en introduisant la recherche par le design comme approche à la fois stratégique et opérationnelle. Après avoir éclairci la notion de matériaux de construction et les enjeux de design qui en découlent, le présent article tentera de décrire les modalités d’intervention de la recherche par le design dans les activités de recherche et développement dans un groupe industriel tel que Saint-Gobain et formulera une proposition pour requalifier les cadres de conception des matériaux dans un contexte de transition écologique.
Secret, complot et poison à la fin du Moyen Âge. La flambée de la première moitié du XIV e siècle
Authors: Collard Franck
Published: March 2024

Étroitement lié au secret qui permet son accomplissement, le complot fait partie de l’univers mental des sociétés médiévales. En 1320-1321 comme en 1347-1348, une fièvre s’est emparée des esprits croyant à un complot toxique de masse. Quels en furent les ressorts et les éléments constitutifs ? Une forme de complotisme s’est-elle manifestée ? Quels liens relient le secret, le complot et le poison ?
Peut-on parler de complots en littérature ?
Authors: Corbellari Alain
Published: March 2024

Si on connaît bien les mystifications littéraires, on identifie moins facilement les entreprises de déstabilisation qui, mêlant le vrai et le faux dans l’histoire de la littérature, peuvent s’apparenter à des théories complotistes lorsque sont en jeu des questions de représentation et d’idéologie. Le présent article propose une rapide synthèse du sujet, d’où il ressort qu’il n’est pas toujours facile de distinguer les supercheries ludiques des complots intéressés.
Invincible incertitude : les complots ne réussissent jamais
Authors: Didier Hugues
Published: March 2024

Tout en explorant les labyrinthes de la vie et du trépas, tout en étant métaphysique, La vie est un songe de Pedro Calderón de la Barca est aussi une œuvre politique. On y trouve, assez subtilement déguisés et emmêlés, les complots que l’Europe venait de connaître en ce temps de monarchies absolues. Or, ce qui amène les princes à comploter (ou à déjouer des complots hostiles) n’est rien d’autre que le désir de régner. Ce faisant, ils complotent pour du néant. Instruit de tout ce qui, illusoirement, est à la fois songe et sommeil, vie et mort, l’héritier de la Couronne renonce à régner ici-bas et se met en marche pour l’éternité.
Jean-Louis Laruette, médecin de l’opéra-comique en 1758
Authors: Ordas Gabrielle , Taïeb Patrick
Published: March 2024

En 1758, deux opéras-comiques de Louis Anseaume campent des personnages de médecin incarnés Jean-Louis Laruette (acteur, chanteur et compositeur). Le Docteur Sangrado (musiques de Egidio Duni et Laruette, vaudevilles) transpose à la scène une figure de Alain-René Lesage issue de son roman picaresque, Gil Blas de Santillane et rend ainsi hommage à Molière, au théâtre espagnol et surtout à un auteur favori des théâtres forains du début du XVIIIe siècle. Le Médecin de l’amour (musique de Laruette et vaudevilles) campe une figure plus proche du philosophe. Cet article analyse le genre dramatique et le style musical des deux pièces dans leur rapport avec la querelle des bouffons et la naissance du drame bourgeois et présente les captations des extraits mis en scène par la Compagnie Théâtre du Matin.
L’aventure éditoriale du Malade imaginaire
Authors: Forestier Georges
Published: March 2024

La mort brutale de Molière en février 1673 a empêché le dramaturge de superviser non seulement l’édition de sa dernière pièce mais également le travail de polissage d’un texte resté partiellement à l’état brut au moment de sa création. Pour répondre aux attentes des lecteurs, impatients de lire la dernière comédie de Molière, deux éditions pirates parurent en 1674, suivies d’une édition autorisée par Armande Béjart en 1675. Mais en 1682, c’est un texte en partie modifié et augmenté qui fut publié dans le tome 8 des Œuvres complètes de Molière. Plusieurs passages, dont la grande scène entre Argan et Béralde, y avaient été réécrits. C’est cette édition, due à l’intervention d’une main extérieure à Molière, qui a été considérée jusqu’en 2010 comme l’édition de référence de la pièce et qui a fait le lit d’une interprétation biographique en grande partie fantasmée faisant du Malade imaginaire l’œuvre-testament d’un homme qui se sait condamné.
Du Malade imaginaire (1673) à Sir Patient Fancy (1678) d’Aphra Behn :
Authors: March Florence , Marion-Ferrand Alice
Published: March 2024

Lorsque les théâtres rouvrent en 1660 en Angleterre après dix-huit ans de fermeture, la comédie de Molière constitue un véritable réservoir d’intrigues dans lequel les auteurs puisent pour relancer l’activité dramatique. La comédie d’Aphra Behn Sir Patient Fancy (1678) s’inspire des Femmes savantes, de Monsieur de Pourceaugnac, de L’Amour médecin et du Malade imaginaire dont elle conserve le titre. En cette période dite de la Restauration, qui marque le rétablissement de la monarchie et du théâtre, les scènes de médecine ont une résonance toute particulière. La mise en scène du motif médical a un double effet : elle souligne la fonction réparatrice de la comédie de Molière qui participe au processus de reconstruction du théâtre dans un contexte sociopolitique et culturel post-traumatique, Molière faisant ainsi figure de médecin au chevet de la scène anglaise ; elle cristallise la fonction satirique et expérimentale de la comédie anglaise de la Restauration, qui se fait à son tour vecteur de reconstruction politique et sociale.
« Inquiourabel ! ». Le souvenir de Molière dans la parade du Chirurgien anglais de Collé
Authors: Ruimi Jennifer
Published: March 2024

La parade de société est une forme comique qui rencontre un vif succès au xviiie siècle. Elle s’inspire de spectacles forains où le bas corporel et la médecine occupent une place importante. Dès lors, les scènes médicales, volontiers grossières et graveleuses, sont nombreuses dans ce genre dramatique. Il y a pourtant une parade qui se veut différente des autres et « sans ordure » : Le Chirurgien anglais, de Charles Collé. Or pour réussir à faire une parade à peu près bienséante, Collé multiplie les emprunts à Molière. Comment s’effectue cette reprise moliéresque ? Qu’est-ce qui provient réellement de l’hypotexte et comment ce dernier est-il enrichi et actualisé par Collé ? Autant de questions qui permettront de réfléchir à l’héritage de Molière et de ce que cela dit à la fois de la sociabilité au xviiie siècle, mais aussi d’un nouveau rapport à la médecine – et au médecin.
Molière et la médecine, ou le génie de la mélancolie
Authors: Dandrey Patrick
Published: March 2024

En partant d’une thèse de Montpellier soutenue en 1723, qui assimile explicitement la maladie imaginaire à la mélancolie et amènera Boissier de Sauvages à créer en 1763 la catégorie nosologique de « melancholia argantis », on remonte à la constance de la pathologie de l’humeur noire qui se devine en transparence des cinq cas de maladies feintes ou illusoires incarnées sur la scène de Molière, entre Le Médecin volant et Le Malade imaginaire. C’est l’occasion d’interroger la plasticité non seulement esthétique et intellectuelle, mais tout autant nosologique et pathologique de ce concept malléable qui guidait alors les intuitions et les certitudes de la pensée savante sur les relations de l’esprit et du corps, de la raison et de la folie, de la santé et de la maladie. On tente de dégager l’usage que Molière en a fait pour l’anatomie des égarements comiques dans le cadre de son esthétique du ridicule, singulièrement dans Le Malade imaginaire.
Coordination, agenda-setting, and future planning: the role of Combined Authorities during the COVID-19 Pandemic
Authors: Kippin Sean , Morphet Janice
Published: March 2024

Following an intermittent and halting roll-out, Combined Authorities (CAs) are now an established part of English governance. They represent a ‘pooling’ of competences by different geographically contiguous local authorities which approximately align with economic geographies and have emerged with strong encouragement from central government. Today, they cover most of England’s large urban centres and enjoy a modest and variable range of permissions to act over planning, transport, and economic development. Since their establishment, they have grown in profile, owing in part to the presence of Directly Elected Mayors, who provide the model with executive leadership, visibility, and electoral legitimacy. The period of the Covid-19 pandemic provides an opportunity to assess their role and influence and to explore how this changed during and as a result of this period of sustained national emergency. Drawing upon publicly available data related primarily – but not exclusively – to three CAs (West Midlands, Teesside, and Liverpool), we conclude that they have played three main overlapping roles. Firstly, they have proven to be engaged in coordination and mediation between regional stakeholders. Secondly, they have proved influential as agenda setters, drawing attention to central government failure. Thirdly, they have acted within their regeneration and planning competences to strategise the economic and urban futures of their city-regions.
Methodology and Application of Information Technology for Carbon-Based Nano-Composites
Authors: Mishra Vibhooti Narayan , Singh Divya Pratap , Singh Shweta , Singh Ashish Kumar , Singh Savendra Pratap
Published: March 2024

Recent developments of carbon-based nanomaterials research have made it possible to use them for a wide range of environmental, material development, and energy-related applications. Graphene, CNT, quantum dots, nano-diamond, and graphene oxide are examples of carbon-based nanomaterials. The development of nanocomposites has drawn a lot of attention lately, with synthesis and application receiving. Recently, there has been a lot of interest in the synthesis of AI-created nanoparticles using artificial intelligence. This work focuses on the synthesis of carbon-based nanocomposites and application of current AI tools to better understand the properties of carbon derivative material, and this information can be applied to the development and application of materials for solution of society's problem. To explain the synthetic and derivation process, adaptive neuro-fuzzy inference systems and ANN may be efficient. Derivations of the nanomaterials are the output of the models, which have various inputs such as catalyst dosage, particle size, concentration, content, exposure time.
Challenges and Future Directions for Promoting Sustainable Gastronomy Tourism
Authors: Waheed Shazia , Kumar Sanjeev
Published: March 2024

In a world where travelers seek genuine and enriching experiences, gastronomy tourism has become an appealing blend of culinary delights and sustainable exploration. This study aims to uncover the diverse challenges confronting this growing industry and outlines a pathway towards a more sustainable future. To investigate the complexity of promoting sustainable gastronomy in tourism, this research employs a combination of research methods, encompassing both qualitative and quantitative approaches. Specifically, the authors will utilize surveys, interviews, focus groups, and case studies to gather data and insights. This research will adhere to ethical guidelines to ensure informed consent and safeguard data privacy. By combining these diverse research methodologies, this study will weave together a rich tapestry of insights into sustainable gastronomy tourism, thereby shedding light on the challenges it confronts and the innovative strategies shaping the future of this delectable journey.
Approaches to Conservation of Gastronomic Heritage in the Process of Industry 4.0 and Climate Change
Authors: Ozturk Hande Mutlu
Published: March 2024

This study discusses the concept of gastronomic heritage, Industry 4.0, and climate change. Technological developments have both positive and negative effects on gastronomic heritage. Climate change can have significant impacts on gastronomic heritage, affecting the availability of traditional foods and ingredients and the ability to continue traditional farming and culinary practices. The study recommends implementing strategies to conserve gastronomic heritage in the face of climate change. The use of technology is also playing an increasingly important role in the conservation of gastronomic heritage, including the use of digital platforms to document and preserve traditional recipes and techniques, as well as the use of data analysis and machine learning to identify patterns and trends in traditional culinary practices.
Sacred Gastronomy Trails
Authors: Mohanty Priyakrushna , Choudhury Rashmiranjan , V. John Paul Raj , Ramachandran Gowri Shankar
Published: March 2024

This study seeks to explain the complex relationships among these three constantly evolving fields, i.e., religion, food, and tourism. The primary objective is to examine the strong link between food and religion by breaking down culinary customs and examining how they influence the formation of gastronomic identities across a range of religious traditions. The second objective explores the connection between food and travel, with a special emphasis on the cultural relevance of pilgrimage food travels. The third goal is to broaden the investigation to include the connection between religion and travel. Through the integration of results from the three aforementioned goals, the research aims to develop a theoretical framework that elucidates the intricate relationship between these components, offering a thorough comprehension of the interdependence of religion, cuisine, and travel in forming personal encounters and cultural environments.
A Comprehensive Analysis of Literature and Strategy for Eliminating Food Waste in Food Service Industry
Authors: Bhatt Sagar
Published: March 2024

Food waste has a serious negative impact on social welfare, economic productivity, and environmental sustainability. In order to create a successful plan for waste management and reduction, this study gives a thorough examination of the available literature on food waste in the food service sector. The study examines the underlying factors, scope, and effects of food waste in food service facilities. Findings from a variety of sources, such as academic journals, reports, case studies, and business publications, are synthesized in the literature review. It draws attention to the complexity of the problem of food waste, which includes a number of elements like excessive production, careless handling, consumer behaviour, and supply chain inefficiencies. This study provides a thorough examination of food waste in the food service sector and presents a workable plan for waste reduction. This study aims to contribute to the larger movement towards a more sustainable and responsible food service sector by combining existing knowledge and offering workable solutions.
Unveiling the World of Bioinformatics
Authors: Dhiman Khushboo , Dhiman Hardik
Published: March 2024

This chapter take a fascinating voyage across the complex bioinformatics landscapes. The authors begin by defining bioinformatics as the essential connection that connects unprocessed biological data to useful knowledge, laying the groundwork for an investigation into the core fields of proteomics, genomics, and data mining. The story flows naturally, showing how feature refinement techniques, machine learning's predictive power, and deep learning's revolutionary ability to understand intricate biological processes all work together in harmony. Applications in the real world emerge, demonstrating the palpable effects of bioinformatics on drug discovery, the prediction of protein functionality, and the rapidly expanding field of personalised medicine. But this journey is not without its difficulties; we must negotiate the nuances of data integration, contend with the interpretability of machine learning models, fight with moral dilemmas, and face the computing demands of big data. Every obstacle turns into a doorway for creativity.
Bucs Abroad
Authors: O'Connor Katharine , Donini Jordan , Messina Michael , Cameron Angus
Published: March 2024

This chapter focuses on showcasing two case studies of multidisciplinary, international service-learning courses offered on the state college level. The authors will focus on best practices of multidisciplinary, international service-learning such as understanding student demographics in order to recruit and prepare students for study abroad experiences. Preparation of student expectation, cultural mentors, and identifying service-learning partners will be covered. The chapter will also offer insights into creative research projects also known as “UnEssays” as a pedagogical tool.
Crossing the Red Tape
Authors: Fairbanks Bailey R. , Skaggs Sherry L. , Hardwick Kisha A. , Graybeal Lesley
Published: March 2024

This chapter explores the processes used by faculty and administrators at a regional comprehensive university in the South to develop partnerships with bureaucratic agencies including a criminology course partnership with local law enforcement agencies, a multidisciplinary partnership with the local juvenile court, and a public administration local government course partnership with a public housing agency and homelessness task force. The intention of the chapter is to provide a roadmap for the development of service or experiential learning processes with government agencies. The nature of developing service-learning partnerships with bureaucratic agencies can often create unique challenges during the development including establishing contact with appropriate agency contacts, developing plans to effectively managing the time and capacity of government agencies, as well as managing the additional legal and risk management requirements that are inherent to collaborating with bureaucratic partners.
Global Service-Learning on a Continuum
Authors: Horton Leah , Brown Riva
Published: March 2024

This book chapter explores student learning and growth after participating in the Science, Society, and Service-Learning in Rwanda study abroad program. The students participated in what the authors define as deep service-learning, one experience that took place over a few days, allowing for more meaningful engagement, and shallow service-learning, two separate experiences that each occurred over a few hours, allowing for less interaction. The authors used Likert-scale and open-ended post-trip questions to assess the students in three categories: 1) global competency and cultural awareness, 2) personal growth and development, and 3) communication and teamwork. The students rated the first category the highest. The authors also assess the effectiveness of the service-learning experiences by including the perspectives of the Rwandan community partners.
Victimology, Theories, and Research
Authors: Pina Miriam , Guerreiro Ana
Published: March 2024

This chapter critically explores the historical development of victimology, tracing its evolution from classical to contemporary criminological theories. It emphasizes the belated scholarly recognition of victims within criminal acts, considering enduring crime as inherent in human existence. The exploration delves into the deconstruction of ideal and non-ideal victim concepts, surveying the emergence of victimology alongside criminology. The transformative shift from causal victim roles to theoretical frameworks in the 1970s is highlighted. The chapter acknowledges the evolving landscape of victimization, particularly in cybercrimes, advocating for a nuanced perspective and adaptive policies. It narrows the focus to the intricate relationship between technology and contemporary victimization, emphasizing the continuum between digital and physical realms.
Online Sexual Grooming of Children
Authors: Sani Ana Isabel , Vara Marcela , Pimenta Dinis Maria Alzira
Published: March 2024

The internet has become a prevalent tool for offenders engaging in the sexual grooming of children, posing a serious threat to fundamental rights and unsettling societies. Challenges in defining online sexual grooming, variations in its prevalence, and evolving offender strategies necessitate a cohesive global legislative effort to combat child sexual abuse. This study employs a legal and psychological perspective, utilizing an integrative review methodology to comprehensively understand online sexual grooming. The objective is to formulate a holistic risk prevention and management framework. Examining risk and vulnerability identification mechanisms through empirical research, the study advocates for an integrated approach, encompassing psychosocial and preventive strategies to combat cybercrime. The proposed framework, comprising primary, secondary, and tertiary prevention measures, aims to strengthen the global fight against the disturbing phenomenon of online sexual grooming and its detrimental impact on children, adolescents, and society as a whole.
Empowering Communities
Authors: Ozeroglu Alev
Published: March 2024

Hate crimes are reprehensible acts driven by animosity and bias against specific target groups, transcending borders and geographical boundaries. Effectively addressing hate crimes necessitates a profound understanding of the victims impacted by prejudice and hostility. To combat crimes rooted in prejudice, it is crucial to delve into the experiences of the victims. A comprehensive understanding of their needs, characteristics, and perspectives becomes paramount for conducting thorough investigations, countering criminal activities, and preventing further victimization. Within this framework, this chapter encompasses the identification of victim groups affected by hate crimes and a detailed exploration of the requisite measures to eradicate victimization. This multifaceted approach aims not only to address the immediate consequences of hate crimes but also to implement proactive strategies that contribute to the prevention of recurrent victimization.
Justice Behind Bars
Authors: Singh Shalini , Sapre Abhilash Arun , Singh Vidhi , Vacaknavi Vagisha
Published: March 2024

Human rights serve as the protective shield for individuals within civil society, representing inherent entitlements acknowledged through legislative acts and enforceable in courts of law. These rights persist even in the face of legal transgressions, with the judiciary intervening to uphold the rights of individuals, including those in detention. This research endeavours to scrutinize the extent to which human rights are extended to detainees and the role played by the judiciary in upholding humanitarian principles. The chapter begins by highlighting the judiciary's acknowledgement of prisoners' rights, as various entitlements are conferred upon incarcerated individuals. The authors delve into the judicial perspective, particularly focusing on Article 21, encompassing rights such as the right to a speedy trial, access to legal aid, and the right to adequate wages for prisoners. Through this lens, the chapter seeks to unravel the nuanced approach taken by the judiciary in safeguarding the rights of those confined.The authors further explore contemporary challenges, specifically addressing the diminishing rights of prisoners of war and immigrant detainees on a global scale. The research aims to shed light on the intricate complexities surrounding the preservation of human rights in the context of detainees, emphasizing the need for judicial intervention to mitigate these challenges and uphold the principles of justice and humanity.
Mobile Applications in Advancing Health Literacy
Authors: Miranda John Paul P.
Published: March 2024

This scoping review explores the role of mobile applications in advancing health literacy, a critical aspect of modern healthcare. Health literacy, encompassing the ability to access, understand, and apply health-related information, significantly influences individual well-being and healthcare effectiveness. The review delves into various research findings, highlighting how mobile applications, with their widespread accessibility, have revolutionized the availability and usability of health information. By examining numerous studies, the review assesses how mobile applications not only enhance patient understanding and management of health conditions but also bolster healthcare professionals' proficiency. Through this exploration, the review underlines the necessity of integrating digital resources into healthcare strategies, thereby reinforcing the potential of mobile applications to significantly contribute to the advancement of health literacy.
Flexible and Disposable Gas Sensors Based on Two-Dimensional Materials
Authors: Ma'ashi Farah , Aljarb Areej , Al-Jawhari Hala
Published: March 2024

Transition metal dichalcogenides (TMDCs) nanomaterials, in particular Molybdenum disulfide (MoS2), have been employed frequently as a basis for flexible gas sensors due to their extreme sensitivity to gas molecules, super mechanical and electrical properties, and large surface area. This work aims to study the behavior of the flexible gas sensor made of 2D-MoS2 under exposure to nitrogen dioxide (NO2) gas at the part per million (ppm) level. The mono-layered MoS2 was successfully synthesized by Chemical Vapor Deposition (CVD). The formation of MoS2 layers was confirmed by Raman spectroscopy and Photoluminescence (PL). Two different gas-sensing devices were fabricated by transferring two MoS2 samples (obtained from two positions inside the CVD tube) onto paper substrates. Specifically, upstream sample Sup was obtained from an area near the MoO3 source, and downstream sample Sdown was obtained from an area far from the MoO3 source. Both sensors showed a good response to a concentration as low as (1.5 ppm) of NO2. Although a high response of 62.8% along with a fast response of 9 sec were recorded by Sdown, the sensor showed a slow recovery time of 42 sec. On the other hand, Sup showed good stability with an appropriate response of 36.8% along with a reasonable response time and recovery times of 20 and 27 sec, respectively. Such behavior could be accredited to the difference in the reactivity in both MoS2 samples. This work opens the way for further improvements in manufacturing MoS2-based flexible gas sensors.
Study of Abaca/Carbon/Epoxy Hybrid Composite Properties as an Alternative Prosthetic Socket Material
Authors: Sosiati Harini , Afif Ainur Luthfi Abdul , Hudiatma Azhar , Adi Rahmad Kuncoro , Pamasti Ankas
Published: March 2024

Composites of natural fiber-reinforced thermoplastic and thermoset polymers have been studied for developing prosthetic socket materials. This study investigated the abaca fiber (AF)/carbon fiber (CF)/epoxy (EP) hybrid composite properties: i.e., tensile, flexural, impact, thermal, and water absorption, by varying AF and CF ratios of 1: 0, 0: 1, 2: 1, 3: 1, and 4: 1 with 80 vol% epoxy resin. The cracks formed in bending test specimens were characterized with an optical microscope, whereas the tensile fracture surface was characterized by scanning electron microscopy (SEM). The results confirmed that the mechanical properties of the CF/EP composite are the highest. The higher the AF/CF ratio, the lower the hybrid composite's mechanical properties and the higher the water absorption. The hybrid composite with a 2:1 AF/CF ratio achieved the highest tensile and flexural strengths of 70 MPa and 103 MPa, respectively, and the lowest water absorption of 7.89%. Based on the experimental results, a simulation of the prosthetic socket was performed using Autodesk Inventor 2019 integrated with ANSYS Workbench 2019 R1, resulting in von Mises stress of 2.14 MPa and deformation of 0.015 mm. Besides, its thermal gravimetric analysis (TGA) resulted in good thermal stability.
Isolation of Cellulose Nanosphere from Corn Husk as a Filler for UV-Cured PEGDMA Nanocomposite Hydrogels
Authors: Tilwani Rohit C. , Calimon Kirsten Noelle Anastasia K. , de Yro Persia Ada N.
Published: March 2024

Cellulose nanosphere (CNS) was isolated from corn husk by delignification, bleaching, acid hydrolysis, dialysis, and sonication. Successful isolation of CNS was confirmed by FTIR Analysis. The isolated CNS was found to have an average diameter of 18 nm and crystallinity index of 70% using TEM and XRD Analysis, respectively. A decrease in onset degradation temperature (Tonset) and an increase in residual mass were also observed in the TG analysis of cellulose fiber and CNS. Nanocomposite hydrogels using poly (ethylene glycol) dimethacrylate (PEGDMA) as matrix and CNS as nanofiller was prepared by UV-curing. FTIR Analysis revealed similar transmittance patterns among all the treatments. Thermal characterization showed that the addition of CNS lowers the Tonset and Tmax while increasing the temperature required for the total degradation of the UV-cured nanocomposite hydrogels.
Effects of Thermal Cycling on the Mechanical Strength of TPU 3D-Printed Material
Authors: Espino Michaela T. , Tuazon Brian Jumaquio , Dizon John Ryan C.
Published: March 2024

Fused Deposition Modelling (FDM) is a three-dimensional (3D) printing technology known for its low-cost rapid manufacturing of parts. Nowadays, various industries such as automotive, aerospace, and maritime are using this technology to manufacture 3D-printed parts that have undergone high temperatures. The material used in this study is the Thermoplastic Polyurethane (TPU), which is the most commonly-used type of Thermoplastic Elastomer (TPE) in 3D printing. This material is a combination of substances from the qualities and characteristics of both thermoplastic and vulcanized thermoset rubber. TPU has excellent abrasion resistance, hardness, chemical, and thermal resistance properties. In addition, TPU is a great fit for making hoses, gaskets, and seals due to its oil and grease resistance properties. Due to the growing application of 3D-printed materials at elevated temperatures, this study aims to characterize the tensile strength of TPU 3D-printed materials when thermal cycled. The test results concluded that the tensile properties of TPU 3D-printed specimens were significantly influenced by the number of thermal cycles it was subjected to. The samples that underwent four thermal cycles exhibited the highest modulus of elasticity and stress at 200% strain. While samples which underwent 2, 8, and 16 thermal cycles resulted to a higher modulus of elasticity and tensile stress at 200% strain than the untreated specimen.
Properties of Carbonated Hydroxyapatite-Based Scaffold from Oyster Shells Composited with Honeycomb and Polyethylene Oxide for Bone Tissue Engineering Applications
Authors: Cahyati Nilam , Sari Mona , Yusuf Yusril
Published: March 2024

Scaffold Carbonated Hydroxyapatite/Honeycomb/Polyethylene Oxide (CHA/HCB/PEO) has been obtained by freeze-drying. The bioceramic CHA used in this study was synthesized from oyster shells using precipitation. HCB and PEO were added as reinforcement materials that affect the crystallographic properties of the scaffold. This study aimed to determine the characteristics of the scaffolds for bone tissue engineering. CHA and scaffolds were characterized using Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffractometer (XRD), and Scanning Electron Microscopy (SEM). FTIR spectra and XRD graphs confirmed that the CHA produced was B-type. FTIR spectra of the scaffold showed the presence of HCB and PEO in the scaffold, which means they were homogeneously bound in the scaffold solution. XRD test results show that scaffolds' crystallinity and crystallite size tends to decrease compared to CHA. This was good because they could make cells easier to proliferate. A small-scale pore structure (micropore) was also formed in the scaffold. The porosity and pore size of the scaffold were affected by the concentration of CHA. The presence of the micropores can increase the permeability of the scaffold and facilitate cell migration. Thus, the composition of CHA/HCB/PEO scaffolds can be a good candidate material in bone tissue engineering.
Using Borax as a Cross-Linking Agent in Poly(Vinyl Alcohol)/Hemp-Extracted Cellulose Hydrogels
Authors: Silprasert Pranithan , Boonmahitthisud Anyaporn , Tanpichai Supachok
Published: March 2024

This study focused on the preparation of hydrogels of poly (vinyl alcohol) and cellulose extracted from hemp fibers with the aid of borax as a cross-linking agent. Cellulose extracted from hemp fibers was initially dissolved in a mixed solution of urea and NaOH to obtain a cellulose solution. In the meantime, PVA was also dissolved in the urea and NaOH. These two solutions were mixed, and various loadings of borax were introduced. Moreover, the effect of borax loadings on equilibrium water content (EWC) and compression properties of the cross-linked hydrogels was investigated. The cross-linked hydrogels showed an EWC of 95.76% and a compression set of 9.71%, compared to those of the physical cross-linked hydrogels which had an EWC of 92.40% and a compression set of 29.96%. It was found that the chemically crosslinked hydrogels exhibited greater stability compared with physical ones owing to the stronger interaction induced by borax. Therefore, The PVA/cellulose hydrogels cross-linked with borax hold potential in various applications such as wound dressing, wastewater treatment, and agricultural fields.
Optimization design and experiment of double-helix total mixed rations preparation mixer for silage straw feed
Authors: Chen Meizhou , Xu Guangfei , Li Xianghao , Zhao Hongda , Zhao Yongli , Diao Peisong , Zhang Yinping
Published: March 2024

Aiming at the problems of uneven mixing and low production efficiency of domestic silage mixer, a double- helix TMR (Total Mixed Rations) preparation mixer for silage straw feed was designed to replace the traditional vertical single-helix mixer. The performance tests and parameter optimization were carried out on this preparation machine. By analyzing the mixing process and mechanism of the diets in the mixing chamber, the key factors affecting the mixing performance and the range were determined. It was found that the greater the stirring speed of the churn, the greater the angle of material lift, the more conducive to improving the material lifting capacity of the churn device. The mixing characteristics of the preparation machine and the movement of material were numerically simulated using EDEM simulation software, and the mixing effect of the preparation machine was verified. The three-factor and five-level CCD center combination orthogonal rotary test in the prototype was carried out with stirring speed of the churn, mixing time and filling coefficient as influencing factors, mixing uniformity, roughage particle size and ton material energy consumption as evaluation indexes. The test results showed that the contribution of each factor to the mixing uniformity in descending order was filling coefficient, stirring speed and mixing time, to the roughage particle size was stirring speed, mixing time and filling coefficient, and to the ton material energy consumption was filling coefficient, mixing time and stirring speed. The optimal working parameters for mixing performance by comprehensive optimization could be concluded as stirring speed of 48.59 r/min, mixing time of 14.98 min, and filling coefficient of 70%. In addition, the mixing uniformity, roughage particle size and ton material energy consumption were obtained as 91.11%, 72.13% and 2.99 kW·h/t. The relative error for all evaluation indexes between the experimental results with round parameter combination and the predicted value was verified to be less than 3%. It can be seen the double-helix TMR preparation mixer can meet the demand for efficient mixing of silage straw feed, which obviously provides data reference and technical support for the design and selection of operating parameters of TMR preparation machines.
Adult ocular adnexal xanthogranulomatous disease associated with immunoglobulin G4-related disease: an unusual association
Authors: De Santana A.R. , Castro de Oliveira Figueirôa M.D.L. , Souza Pedreira A.L. , Behrens Pinto G.L. , Santiago M.B.
Published: March 2024

Adult-onset xanthogranuloma (AOX) and immunoglobulin G4-related disease (IgG4-RD) are uncommon fibrosing conditions that may exhibit localized ocular manifestations and occasionally systemic symptoms. These conditions exhibit overlapping clinical and histological features, suggesting a potential correlation between them, although their exact relationship remains unclear. This paper presents the case of a black male patient exhibiting typical histological indications of both AOX and IgG4-RD. The patient responded positively to corticosteroid treatment.
Anti-glutamic acid decarboxylase antibodies-associated cerebellar ataxia: A treatable ataxia
Authors: Mahale Rohan , M Sandeep , Mahadevan Anita , Kamble Nitish , Holla Vikram , Mundlamuri Ravindranadh , Vengalil Seena , M Netravathi , Nalini Atchayaram , Pal Pramod Kumar , Yadav Ravi
Published: March 2024

Background:

Anti-glutamate decarboxylase 65 antibody-associated cerebellar ataxia (anti-GAD65Ab-associated CA) is the most widely studied immune-mediated CA. There are few case series evaluating the clinical, radiological, treatment profile, and outcome of anti-GAD65Ab-associated CA.

Objective:

To study the clinical, radiological profile, associated neoplasm, treatment outcome, and prognosis in patients diagnosed with anti-GAD65Ab-associated CA.

Methods:

A retrospective descriptive analysis of a cohort of patients diagnosed with anti-GAD65Ab-associated CA was performed and analyzed.

Results:

Thirteen patients were selected for the analysis with female predominance (70%). The mean age at presentation was 47.5 ± 11.1 years (range, 29–65 years), and the median duration of the symptoms was 4 months. All 13 patients (100%) had gait ataxia. Ten patients had limb ataxia along with gait ataxia (75%). Seven patients had cerebellar dysarthria (54%). Four patients (31%) had gaze-evoked jerky nystagmus. Five patients (39%) were diagnosed with type 2 diabetes mellitus, and one patient had hypothyroidism in addition to type 2 diabetes mellitus. Brain magnetic resonance imaging was normal in seven (54%) patients, and pure cerebellar atrophy was observed in six patients. One patient was detected with a colon neoplasm. All 13 patients received intravenous methylprednisolone, followed by oral steroids over 3 months. Six patients (50%) received plasma exchange along with intravenous methylprednisolone. Favorable outcomes (modified Rankin scale score ≤2) were observed in five patients and poor outcomes in two; six patients were lost to follow-up after the first admission.

Conclusion:

Anti-GAD65Ab-associated CA presents as subacute to chronic progressive CA with a favorable outcome with immunotherapy. Anti-GAD antibodies should be assessed in serum or cerebrospinal fluid in patients presenting subacute to chronic sporadic CA. The occurrence of a systemic neoplasm is rare in anti-GAD65Ab-associated CA.
A Rare Case of Primary Spindle Cell Synovial Sarcoma of Scalp
Authors: Sarkar Sujata , Sharma Ritesh , Yotham Roopesh Reddy , Bashir Irfan
Published: March 2024

Synovial sarcoma is a variant of soft-tissue sarcoma, but has a very aggressive course. It is very rare overall, constituting only 5%–10% of all soft-tissue sarcomas. Head and neck constitutes 3%–5% of cases. It is more common in males in the 15–40 years age group. Hence, histopathological confirmation is required for diagnosis along with radiological investigations like magnetic resonance imaging. If histopathology/immunohistochemistry also cannot give a definitive diagnosis, chromosomal translocation t(x; 18) (p11.2–q11.2) assay is required as it is present in more than 90% of cases. Rarity of cases leads to the absence of proper treatment guidelines. Here, we are reporting a case of a large primary spindle cell synovial sarcoma of the scalp in a 57-year-old female, developed just over a month, pushing brain parenchyma, describing her treatment by volumetric modulated arc therapy (VMAT) radiotherapy to spare surrounding critical organs, particularly brain and eyes.
Radiographic Assessment of Agenesis of the Third Molars: A Cross-sectional Study
Authors: Ganesan Nithiyasri , Maheswaran T. , Nalliyapan Ganapathy , Vadivel Ilayaraja , Janardhanam Dineshshankar , Ragunathan Yoithap Prabhunath Thuckanaickenpalayam
Published: March 2024

Congenital absence of a tooth is known as dental agenesis or agenesis of a tooth. Although both deciduous and permanent dentition are prone to agenesis, permanent third molars are the most commonly affected teeth.

Aim:

The aim of this study was to estimate the prevalence of third molar agenesis in the South Indian-based population.

Materials and Methods:

Three hundred subjects (150 males and 150 females) with a range between 18 and 25 years who had no previous history of third molar extractions and who had other dental complaints that required radiographic investigation using orthopantomograms were selected for the study. The digital radiographs were assessed for the identification of third molar agenesis. The data such as gender and presence of third molar agenesis and site were recorded and statistically tested using the Chi-squared test.

Results:

The prevalence of third molar agenesis in the studied population was 24.3%. Agenesis of third molars is more prevalent in females than males (P = 0.001). However, there was no significant difference noted between the right and left maxillary and mandibular third molars among males and females (P > 0.05).

Conclusion:

Based on our findings, third molars are found to be highly vulnerable to dental agenesis, especially in females.
Assessment of Anxiety in Dental Practice among Dental Students of Himachal Pradesh: A Cross-sectional Study
Authors: Gurung Deepak , Bhardwaj Vinay Kumar , Fotedar Shailee
Published: March 2024

Background:

The demand of excellence and proficiency among professionals is a threat to vocational well-being. The anxiety inherited by dental students is reflected through poor physical and psychological health, loss of interest leading absenteeism, and substance abuse with decreased clinical skills and competencies.

Aim:

To assess the anxiety in dental practice among dental students of Himachal Pradesh.

Methods:

The sources of data during this cross-sectional were the dental students studying in one government and four private dental colleges of Himachal Pradesh (India). The information included were demographic details and Dental Anxiety Questionnaire adapted from a previous study. The Dental Anxiety Questionnaire consisted of 37 questions with six anxiety-related constructs of academic (6 items), communication (4 items), investigation (7 items), diagnosis (4 items), treatment (8 items), and deficiencies (8 items). Each item was scored on four-point Likert scale and scores of 38–74 were considered mild anxiety, 75–111 moderate anxiety, and 112–148 severe anxiety.

Results:

The mean anxiety total score was 83.89 ± 17.49 and within the six constructs, deficiencies and error in treatment-related anxiety showed the highest and communication and health team-related anxiety showed the lowest mean anxiety total scores. The floor and ceiling effect was reported to be 2.53% and the individual item to the total item correlation was above the recommended accepted level of 0.3 for majority of items which indicated good content validity for the scale used. The Cronbach’s alpha was found to be 0.89 (unstandardized), which suggested the good internal consistency.

Conclusion:

Understanding the various types of anxiety related to dental students in the clinical dental practice is essential in the process of designing and evaluation of an effective and integrated dental curriculum. The dental curriculum should be well oriented in achieving a desired optimal anxiety for better academic excellence and clinical success of the dental students.
A Comprehensive Review on the Accuracy Determination Methods for Glucose Meters
Authors: Kesavadev Jothydev , Saboo Banshi , Gupta Amit , Sreelakshmi R. , Krishnan Gopika
Published: March 2024

Optimal diabetes management demands the monitoring of blood glucose (BG) at specified intervals. Self-monitoring of BG has now become an integral part of maintaining the recommended target level and has gained wide acceptance among the diabetes community as a standard tool for glycemic management. The technological advancements in diabetology have ushered in the emergence of innumerable glucose meters with specialized features. International organizations such as the American Diabetes Association urge people with diabetes to have a thorough focus on the features of glucometers of their choice, especially, on its accuracy and precision of readings as the values are the potential determinants of therapeutic decision-making. The review discusses the methods employed for determining the precision and accuracy of BG meters, which are used for glycemic monitoring.
Management of childhood-onset growth hormone deficiency in patients transitioning from pediatric to adult care: A review of the literature and consensus report from a panel of experts in Saudi Arabia
Authors: AlMutair Angham , Alsagheir Afaf , AlShammary Afaf , AlFares Abdullah , Bin-Abbas Bassam , Alrobaie Fahd , AlShareef Faisal , Mahzari Moeber , Almalki Mussa , Attia Najya , ElBoghdady Ahmed , Alharazi Rahaf S , Alherbish Abdullah
Published: March 2024

Despite increased recognition of the importance of optimizing care for patients with childhood-onset growth hormone deficiency (CO-GHD) during the transition period from pediatric to adult services, its implementation in clinical practice in Saudi Arabia remains challenging. By an initiative from the Saudi Society of Endocrinology and Metabolism, a panel comprising 11 experts, including both pediatric and adult endocrinologists with practical experience in the clinical management of patients with CO-GHD, was convened to discuss issues relating to transition care in this patient population. The primary objective of this consensus document was to develop the first clinician-led consensus statement that establishes best practices when transitioning adolescents with persistent CO-GHD to adult care in Saudi Arabia. A modified Delphi method was applied to develop consensus statements. A literature review was performed, and 20 statements were subsequently formulated. After two rounds of Delphi, consensus was achieved for 18 of the 20 statements.