bluuebunny/crossref_metadata_2025 huggingface dataset:
Global burden of inflammatory bowel disease 1990-2019: A systematic examination of the disease burden and twenty-year forecast
Authors: Li Cheng-Jun , Wang Yi-Kai , Zhang Shun-Ming , Ren Mu-Dan , He Shui-Xiang
Published: November 2023

Esophageal cancer (EC) has a high incidence and mortality rate and is emerging as one of the most common health problems globally. Owing to the lack of sensitive detection methods, uncontrollable rapid metastasis, and pervasive treatment resistance, EC is often diagnosed in advanced stages and is susceptible to local recurrence. Exosomes are important components of intercellular communication and the exosome-mediated crosstalk between the cancer and surrounding cells within the tumor microenvironment plays a crucial role in the metastasis, progression, and therapeutic resistance of EC. Considering the critical role of exosomes in tumor pathogenesis, this review focused on elucidating the impact of exosomes on EC metastasis and therapeutic resistance. Here, we summarized the relevant signaling pathways involved in these processes. In addition, we discussed the potential clinical applications of exosomes for the early diagnosis, prognosis, and treatment of EC.
Effects of the aldehyde-derived ring substituent on the properties of two new bioinspired trimethoxybenzoylhydrazones: methyl vs nitro groups
Authors: Martins Dayanne , Lamosa Roberta , da Silva Talis Uelisson , Ligiero Carolina B P , de Paula Machado Sérgio , Cukierman Daphne S , Rey Nicolás A
Published: November 2023

N-Acylhydrazones are a versatile class of organic compounds with a diversity of potential applications. In this study, two new structure-related 3,4,5-trimethoxybenzoyl-containing N-acylhydrazones were synthesized and fully characterized, both in solution and in the solid state. The compounds differ with respect to the carbonyl precursors, i.e., 3-substituted salicylaldehydes with either a methyl or a nitro group. Single crystals of both compounds were isolated from the respective mother liquors and, in both cases, XRD confirmed the obtention of the (E)-isomer, in an anti-conformation. Computational calculations (gas and water phases) were performed in order to confirm some of the structural and vibrational aspects of the compounds. An important intramolecular H bond involving the phenolic hydroxy group and the azomethine nitrogen was identified in the solid state and seems to be maintained in solution. Moreover, the presence of the electron-withdrawing nitro substituent makes this interaction stronger. However, the contact should probably not subsist for the nitro compound under physiological conditions since the presence of this substituent significantly affects the pKa of the phenol: an apparent value of 5.68 ± 0.02 was obtained. This also impacts the basicity of the azomethine nitrogen and, as a consequence, increases the hydrazone’s susceptibility to hydrolysis. Nevertheless, both compounds are stable at physiological-like conditions, especially the methyl-derived one, which qualifies them for further toxicological and activity studies, such as those involving trivalent metal ions sequestering in the context of neurodegenerative diseases.
Determinación de la Porosidad de un Hormigón Mediante Medidas Eléctricas
Authors: Palenque Vidaurre Eduardo Rodrigo , Valero Choque Edwin
Published: November 2023

En este trabajo se presenta un método alternativo para la medida de la porosidad de los hormigones ya consolidados, basado en medidas eléctricas. Se aprovecha las relaciones conocidas entre la resistencia mecánica y la porosidad; además de la nueva propuesta de estandarizar la medida de la resistencia mecánica a través de la medida de resistividad eléctrica. Trabajando con los conceptos teóricos y realizando aproximaciones en las ecuaciones base, se presenta una fórmula que relaciona la resistividad eléctrica y la porosidad.
Formación Permanente del Profesor en la Escuela y su Aporte en el Desarrollo del Pensamiento Crítico en Contextos Rurales de Montería
Authors: Martínez Barragán Liliana Patricia
Published: November 2023

La formación docente se concibe como un conjunto de técnicas y estrategias destinadas a potenciar el desarrollo profesional de los educadores, buscando optimizar sus habilidades y perfeccionar su labor. Esto los prepara para liderar la introducción de métodos pedagógicos innovadores, enriqueciendo su desempeño y contribuyendo positivamente a la evolución del entorno educativo. Bajo esta perspectiva, se estableció el objetivo de analizar cómo la formación permanente del profesorado en el ámbito escolar rural contribuye al fomento del pensamiento crítico en ambientes educativos rurales de Montería. Basándose en el Paradigma Interpretativo, la perspectiva hermenéutica y el enfoque fenomenológico como cimientos metodológicos, se utilizaron herramientas como entrevistas semiestructuradas, grupos focales y revisión documental para la obtención de información. El grupo de estudio estuvo conformado por 60 docentes de establecimientos públicos de zonas rurales en Montería. Las conclusiones revelaron que la formación permanente en contextos rurales integra distintos factores que moldean esta capacitación. Es crucial, el entendimiento del ámbito rural en el cual los educadores ejercen su profesión. Además, es esencial disponer de herramientas educativas apropiadas para potenciar el pensamiento crítico en estudiantes de estas regiones, como acceso a recursos pedagógicos, bibliotecas, espacios para experimentación, tecnologías de la información y oportunidades de aprendizaje práctico. La formación permanente incentiva a los docentes a reflexionar  y optimizar su labor, motivándolos a revisar sus métodos, identificar áreas de fortaleza y mejora, y buscar caminos de crecimiento profesional sostenido.
Cytogenetic characteristics of invasive Corbicula fluminalis (Bivalvia: Cyrenidae) of the Northern Dvina River basin
Authors: Kropotin Alexander V. , Bespalaya Yulia V.
Published: November 2023

The ploidy between invasive Corbicula lineages can be di-, tri-, and tetraploid. Currently, some invasive populations of this genus remain unaffected by cytogenetic studies. In this study, we determined the chromosome set of invasive C. fluminalis (O. F. Muller, 1774) from Northern European Russia. According to our results, the chromosome set C. fluminalis consists of 54 chromosomes, which can be divided into 18 groups of 3 phenotypically identical chromosomes. Among them we can distinguish 3 metacentric chromosomes, 15 submetacentric chromosomes and 36 subtelo-acrocentric chromosomes.
‘Peculiarly fit for statues’: the contribution of Coade’s fired artificial stone to sculpture in the eighteenth century
Authors: Stanford Caroline
Published: November 2023

This article considers the enduring ‘value’ of Coade stone as artefact. Using insights from Alois Riegl’s
The Modern Cult of Monuments
, it examines the contribution of fired artificial stone as a key enabler of the eighteenth-century passion for sculpture in Britain, as replicated sculptural forms entered interiors, gardens and architecture. This durable stoneware first crossed into statuary in the 1720s. From 1769, Eleanor Coade (1733–1821) became its figurehead, successfully positioning Coade stone as superior to natural stone. Formulation and production were collaborative processes dependent upon specialist, often overlooked fabricating skills. This article considers factors that led to the success of Coade stone, as well as its composition and production. It concludes with a brief case study of the Coade stone caryatids that Sir John Soane took as a personal motif.
The Young Naturalist
by Henry Weekes: intermediality, industry and international exhibitions
Authors: Wade Rebecca
Published: November 2023

The Young Naturalist
by Henry Weekes (1807–77) was first presented in plaster at the Royal Academy of Arts in 1854. Beginning as an object located firmly in the domain of the fine arts through its modes of production and sites of display, the sculpture encountered industry through a series of international exhibitions in Paris, London and Manchester during the 1850s and 1860s. Not only was the work in proximity to industrial objects, processes and collectors, it was fundamentally transformed by them, resulting in a collaboration between Weekes and the Birmingham-based manufacturer Elkington & Co. This article charts the changing status of sculpture and labour in the second half of the nineteenth century, with its increasing visibility and availability to new markets through both emerging and established technologies of reproduction.
Valuing ornament: Jean-Baptiste Plantar (1790–1879) between art, craft and industry
Authors: Gain Justine
Published: November 2023

In the nineteenth century, as European countries reacted to industrialization, art and burgeoning industries intertwined in a myriad of new ways. From this union, several major changes occurred in building construction, decorative arts and sculpture. The career and oeuvre of Jean-Baptiste Plantar, French ornamentalist and sculptor des Bâtiments du Roi, illustrate the new relationships forged between traditional architectural patterns and industrial artistic production. Despite holding a central role in their establishment, Plantar has been largely unheeded both by his contemporaries and later writers. This article reasserts Plantar’s significance in the creation of a visual – essentially Parisian – landscape in the first half of the nineteenth century.
Electron–Ion Heating Partition in Imbalanced Solar-wind Turbulence
Authors: Squire Jonathan , Meyrand Romain , Kunz Matthew W.
Published: November 2023

A likely candidate mechanism to heat the solar corona and solar wind is low-frequency “Alfvénic” turbulence sourced by magnetic fluctuations near the solar surface. Depending on its properties, such turbulence can heat different species via different mechanisms, and the comparison of theoretical predictions to observed temperatures, wind speeds, anisotropies, and their variation with heliocentric radius provides a sensitive test of this physics. Here we explore the importance of normalized cross helicity, or imbalance, for controlling solar-wind heating, since it is a key parameter of magnetized turbulence and varies systematically with wind speed and radius. Based on a hybrid-kinetic simulation in which the forcing’s imbalance decreases with time—a crude model for a plasma parcel entrained in the outflowing wind—we demonstrate how significant changes to the turbulence and heating result from the “helicity barrier” effect. Its dissolution at low imbalance causes its characteristic features—strong perpendicular ion heating with a steep “transition-range” drop in electromagnetic fluctuation spectra—to disappear, driving a larger fraction of the energy into electrons and parallel ion heat, and halting the emission of ion-scale waves. These predictions seem to agree with a diverse array of solar-wind observations, offering to explain a variety of complex correlations and features within a single theoretical framework.
« L’Europe pour l’Afrique, l’Afrique pour l’Europe »
Authors: Berardi Silvio
Published: November 2023

Cet essai, qui s’appuie grandement sur des sources d’archives, tente de reconstruire le concept d’Eurafrique dans la pensée et l’œuvre de l’africaniste Paolo D’Agostino Orsini di Camerota. C’est un chemin traversé de vicissitudes et donc non linéaire. Sa conception était initialement ancrée dans des intentions de propagande en faveur du régime fasciste et, par conséquent, prête à soutenir une position de disparité entre les deux continents, fruit d’idéologies convaincues de la supériorité de la race blanche. Après la Seconde Guerre mondiale, à travers un processus culturel et évaluatif complexe, qui, cependant, exprimait bien les raisons souvent difficiles du changement de perspective, D’Agostino Orsini a progressivement modifié sa thèse initiale : il considérait désormais nécessaire une coopération euro-africaine sur un pied d’égalité, en vue de construire des États-Unis d’Afrique.
« Soif d’authenticité » – Une socio-histoire de la publicité de la bière au Togo (1960-2018)
Authors: Frisch Robin
Published: November 2023

Cet article entend, dans le sillage du politique par le bas , rendre compte d’une recherche sur la dimension symbolique du pouvoir politique au Togo depuis les années 1960. La publicité autour de la bière reflète non seulement l’histoire nationale, mais aussi l’ambivalence dans la culture de mémoire du passé colonial allemand. Comment la bière – à l’origine brassée par des entreprises allemandes – devient-elle une boisson « authentiquement » togolaise ? Les deux arguments principaux sont que la publicité autour de la bière au Togo est un vecteur d’authenticité nationale ainsi qu’un opérateur de subjectivité qui influence notamment les représentations de genre. La recherche se fonde sur l’analyse des discours visuels et sur des entretiens réalisés en forme de micro-bar à Lomé entre avril et juin 2018.
L’économisation des réseaux sociaux Facebook et WhatsApp chez les jeunes femmes camerounaises
Authors: Kouam Isidore Steve
Published: November 2023

Ce texte traite des usages économiques des réseaux sociaux chez les jeunes femmes dans l’espace francophone. Il s’appuie sur le cas du Cameroun, où le taux de pénétration d’internet est passé de 4 % à 36,5 % entre 2010 et 2022. Avec plus de 4,10 millions d’utilisateurs, dont 42,5 % de femmes, les réseaux sociaux Facebook et WhatsApp sont les plateformes les plus utilisées au Cameroun. Malgré cette massification de l’utilisation du numérique, les usages féminins de ces plateformes restent à documenter. L’article se donne pour objectif d’expliquer les usages économiques des réseaux sociaux chez les jeunes femmes camerounaises. Quels sont les déterminants des usages économiques des applications Facebook et WhatsApp chez les jeunes femmes camerounaises ? Nous soutenons que ce sont les caractéristiques socio-économiques des jeunes e-entrepreneuses et le rapport coûts-bénéfices dans ce type d’activité qui incitent les jeunes femmes à faire un usage économique des réseaux sociaux. À partir d’un matériau constitué d’entretiens semi-directifs, d’ethnographie du digital et d’une revue documentaire, nous décrivons les itinéraires et les mobiles des vendeuses en ligne, et analysons les facteurs structurels, cognitifs et stratégiques de rentabilisation des réseaux sociaux au Cameroun. Et nous finissons par nous interroger, à titre purement exploratoire, sur les évolutions de carrière que pourraient vivre ces jeunes entrepreneures, notamment vers le secteur formel.
La déclinaison des objectifs de développement durable dans la planification territoriale au Togo
Authors: Neglo Asseye
Published: November 2023

La mise en œuvre des Objectifs de développement durable (ODD) est une étape importante dans le processus de développement des pays. Bien que ces ODD s’intègrent dans la planification territoriale, leur déclinaison dans les territoires constitue un défi de taille. Le Togo, tout comme les pays membres de l’Organisation des Nations unies (ONU), dans l’atteinte des ODD, élabore un Plan national de développement (PND) et instaure de nouveaux programmes de développement. La généralisation des ODD peut-elle être un problème dans leur choix et leur mise en œuvre aux échelles locales ?
La compréhension des intrications Humains – Nature par la lecture historique des pathologies environnementales
Authors: Charlet Clara
Published: November 2023

Dès le xx e  siècle, les balbutiements de la crise écologique mettent à mal la santé des végétaux, des animaux, puis peu à peu, celle des humains. La lecture épistémologique de cette crise sous le prisme des pathologies environnementales qui en découlent semble être l’une des clés pour percevoir les enjeux à venir, mais également les solutions qui s’offrent à nous pour surpasser les maux de l’anthropocène. Et le remède au sens d’outil de la pensée qui s’inscrit dans cette perspective de la pérennisation de la santé, c’est la notion de vivant. Il serait intéressant de comprendre en quoi l’intrication de toutes les strates du vivant peut permettre de mieux percevoir les risques qui se jouent en matière de santé, et comment une médecine plus holiste et intégrative des êtres entre eux s’impose comme la pierre angulaire d’une reconnexion capable de penser le soin, à la lumière d’une histoire de la médecine à la fois longue et contemporaine.
Finalité et caractéristiques de l’histoire des sciences selon Jean Rostand (1894-1977)
Authors: Guyard Marianne
Published: November 2023

Cet article 1 a pour objectif de dégager la finalité et les principales caractéristiques des écrits historiques du biologiste et moraliste français Jean Rostand (1894-1977). Lors de son Discours inaugural au xii e  Congrès international d’histoire des sciences tenu à Paris en 1968, Rostand compare l’histoire de la science à « une lente et laborieuse embryogenèse de la vérité ». À l’aide de cette comparaison, il énonce la finalité principale de l’histoire des sciences : retracer l’histoire des vérités scientifiques. Ce faisant, l’histoire des sciences permet de rendre hommage aux précurseurs en révélant le travail progressif et complexe de l’esprit scientifique, naturellement porté à vouloir déceler la vérité, et, par-là, propre à éveiller des vocations chez les jeunes.
Regard d’un jardinier
Authors: Martella Marco
Published: November 2023

Cet article tente de déterminer le rôle de l’aspiration esthétique dans l’art des jardins depuis les premiers paradeisos persans, et de répondre à la question : quelle est la place de la beauté dans la création paysagère aujourd’hui ? Si souvent elle n’occupe plus une place centrale dans les projets contemporains de jardins, plus tournés vers l’écologie que vers des idéaux esthétiques, elle continue à guider le travail du jardinier dans son enclos fleuri, qui demeure « un petit monde, un monde parfait », comme l’écrivain et poète Vita Sackville-West définit le jardin.
Two-grid $ H^1 $-Galerkin mixed finite elements combined with $ L1 $ scheme for nonlinear time fractional parabolic equations
Authors: Pan Jun , Tang Yuelong
Published: November 2023

In this paper, we propose a two-grid algorithm for nonlinear time fractional parabolic equations by $ H^1 $-Galerkin mixed finite element discreitzation. First, we use linear finite elements and Raviart-Thomas mixed finite elements for spatial discretization, and $ L1 $ scheme on graded mesh for temporal discretization to construct a fully discrete approximation scheme. Second, we derive the stability and error estimates of the discrete scheme. Third, we present a two-grid method to linearize the nonlinear system and discuss its stability and convergence. Finally, we confirm our theoretical results by some numerical examples.
Structured backward errors analysis for generalized saddle point problems arising from the incompressible Navier-Stokes equations
Authors: Lv Peng
Published: November 2023

Recently, a number of fast iteration methods for the solution of the structured linear system arising from the incompressible Navier-Stokes equations have been proposed by some authors. In order to evaluate the strong stability of these numerical algorithms, in this paper we deal with the structured backward error analysis for this type of structured linear system and present the explicit formula of the structured backward error. Based on the structured backward error, we perform some numerical experiments to compare the availability of some existing numerical algorithms.
Counting rational points of two classes of algebraic varieties over finite fields
Authors: Zhu Guangyan , Qiang Shiyuan , Li Mao
Published: November 2023

Let $ p $ stand for an odd prime and let $ \eta\in \mathbb Z^+ $ (the set of positive integers). Let $ \mathbb F_q $ denote the finite field having $ q = p^\eta $ elements and $ \mathbb F_q^* = \mathbb F_q\setminus \{0\} $. In this paper, when the determinants of exponent matrices are coprime to $ q-1 $, we use the Smith normal form of exponent matrices to derive exact formulas for the numbers of rational points on the affine varieties over $ \mathbb F_q $ defined by

   \begin{document}$ \left\{ \begin{aligned} &a_1x_1^{d_{11}}...x_n^{d_{1n}}+... +a_sx_1^{d_{s1}}...x_n^{d_{sn}} = b_1,\\ &a_{s+1}x_1^{d_{s+1,1}}...x_n^{d_{s+1,n}}+... +a_{s+t}x_1^{d_{s+t,1}}...x_n^{d_{s+t,n}} = b_2 \end{aligned} \right. $\end{document}

and

   \begin{document}$ \left\{ \begin{aligned} &c_1x_1^{e_{11}}...x_m^{e_{1m}}+... +c_rx_1^{e_{r1}}...x_m^{e_{rm}} = l_1,\\ &c_{r+1}x_1^{e_{r+1,1}}...x_m^{e_{r+1,m}}+... +c_{r+k}x_1^{e_{r+k,1}}...x_m^{e_{r+k,m}} = l_2,\\ &c_{r+k+1}x_1^{e_{r+k+1,1}}...x_m^{e_{r+k+1,m}}+... +c_{r+k+w}x_1^{e_{r+k+w,1}}...x_m^{e_{r+k+w,m}} = l_3, \end{aligned} \right. $\end{document}

respectively, where $ d_{ij}, e_{i'j'}\in \mathbb Z^+, a_i, c_{i'}\in \mathbb F_q^*, i = 1, ..., s+t,$ $j = 1, ..., n, i' = 1, ..., r+k+w, j' = 1, ..., m, $ and $ b_1, b_2, l_1, l_2, l_3\in \mathbb F_q $. These formulas extend the theorems obtained by Q. Sun in 1997. Our results also give a partial answer to an open question posed by S.N. Hu, S.F. Hong and W. Zhao [The number of rational points of a family of hypersurfaces over finite fields, J. Number Theory 156 (2015), 135–153].
Stability analysis of Abel's equation of the first kind
Authors: Naser Mohammad F.M. , Aal Mohammad Abdel , Gumah Ghaleb
Published: November 2023

This paper established sufficient conditions for the stability of Abel's differential equation of the first kind. These conditions explicate the impact of the asymptotic behaviors exhibited by the time-varying coefficients on the overall stability of the system. More precisely, we studied the positivity, the continuation and the boundedness of solutions. Additionally, we investigated the attractivity, the asymptotic stability, the uniform stability and the instability of the system. The results were scrutinized by numerical simulations.
Dynamic analysis of a bacterial resistance model with impulsive state feedback control
Authors: Yan Xiaoxiao , Zhao Zhong , Hui Yuanxian , Yang Jingen
Published: November 2023

Bacterial resistance caused by prolonged administration of the same antibiotics exacerbates the threat of bacterial infection to human health. It is essential to optimize antibiotic treatment measures. In this paper, we formulate a simplified model of conversion between sensitive and resistant bacteria. Subsequently, impulsive state feedback control is introduced to reduce bacterial resistance to a low level. The global asymptotic stability of the positive equilibrium and the orbital stability of the order-1 periodic solution are proved by the Poincaré-Bendixson Theorem and the theory of the semi-continuous dynamical system, respectively. Finally, numerical simulations are performed to validate the accuracy of the theoretical findings.
Voice Analytics for the Identification of University Student Satisfaction, from WhatsApp Audio Messaging
Authors: Chamorro Atalaya Omar , Quispe Aguilar Max , Candia-Quispe Wilson , Roman-Gonzalez Avid , Cruz-Telada Yreneo , Suarez-Bazalar Raul , Arévalo-Tuesta José Antonio
Published: November 2023

In the context of virtual teaching during the COVID-19 pandemic, a gap emerged between students and teachers due to social distancing measures. This gap hindered the flow of information about the teaching-learning process, making it difficult for authorities to make informed decisions to improve student satisfaction and teaching performance. In this context, the widespread use of mobile applications, through which students express their opinions on the conditions of their learning sessions, is significant. In this sense, the objective of this paper is to apply voice analytics to identify the factors that contribute to the lowest level of student satisfaction in teacher performance using WhatsApp audio messaging. The study has a quantitative approach, an exploratory-descriptive level, and a non-experimental cross-sectional design. The study population consisted of 33 students. It was determined that the factor with the lowest level of satisfaction is the dimension “class session administration,” with a percentage of 57.58%, which is significantly lower than the satisfaction levels of the other factors analyzed, which are above 90%. Therefore, it is concluded that in addition to using rubrics to evaluate teacher performance in adhering to lesson plans and class sessions, the authorities should also implement regulations that support the use of voice analytics through mobile applications like WhatsApp. This will provide insights from students, who are direct participants in the teaching process, regarding their perception of teaching performance.
Influence of Teacher Intervention on College Students’ Metacognition in an Online Collaborative Learning Environment
Authors: Zheng Erdong , Wang Qiuying
Published: November 2023

The rapid development of the Internet, big data, and mobile Internet technology has resulted in the emergence of online collaborative learning as the primary mode of collaborative learning. Although online collaborative learning is flexible and autonomous, the learning performance of learners is not high. One of the main problems that perplexes teachers in online teaching is the high dropout rate but low completion rate. Online education has become increasingly important for improving the quality of students’ learning. Teachers’ rational use of resources, strategies, and other intervention techniques can significantly enhance the quality of online education. Exploring the effect of teacher-led classroom interventions on college students’ metacognition under the collaborative learning mode can further integrate information technology with classrooms and promote the improvement of classroom learning and teaching effectiveness. Two parallel classes, consisting of 80 students each, were selected as research subjects at Harbin University of Science and Technology in Heilongjiang Province, China. The aim of the study was to investigate the impact of teacher intervention on college students’ metacognition (specifically, metacognitive planning, metacognitive monitoring, metacognitive regulation, and metacognitive evaluation) in an online collaborative learning environment. Results show that there is no significant difference in the online collaborative learning experience between the experimental class and the control class (P = 0.3542 > 0.05). Nonetheless, the experimental and control groups differ in their metacognitive planning (t = 3.943, p = 0.000), metacognitive monitoring (t = 2.464, p = 0.016), metacognitive regulation (t = 2.024, p = 0.046), and metacognitive evaluation (t = 3.675, p = 0.000). These findings indicate that teacher intervention promotes metacognition among college students. The findings have significant reference value for the seamless integration of online teaching resources and teachers’ instruction, the customization of students’ individualized learning paths, and the enhancement of online collaborative learning performance.
Time to fix: repair heuristics in Estonia and Portugal
Authors: Martínez Francisco
Published: November 2023

This paper discusses the relevance of repair actions for the maintenance of social bonds, suggesting that these interventions have heuristic possibilities to address the crises of our time. The general argument points to important questions, such as the distinction between caretaking, endurance and resilience. Building on a literature review and ten years of fieldwork in two different locations (Estonia and Portugal), it develops an argument for post-brokenness and repair as a heuristic of the contemporary social condition. The different examples here included show the complex temporality of fixing interventions as well as the urge to understanding contextual nuances of socio-material in/stability and damage. A multi-sited attention to fixing interventions allows us to comprehend the processes and conditions under which certain things acquire socio-material stability against the grain. In this sense, repair work is presented as socially and politically-loaded by putting things to some order, activating other kinds of relations and holding together different dimensions of care.
Os caminhos do peixe fresco na pesca artesanal em Sesimbra: uma paradoxal maritimidade
Authors: Pereira da Silva Pedro
Published: November 2023

Actualmente, o pescado fresco marítimo assume um papel muito particular como marcador identitário no contexto dos sistemas alimentares dos núcleos piscatórios. Dada a relação, continuamente reiterada pelo discurso público, entre os benefícios do seu consumo e o paradigma da frescura, encontramos aqui uma paradoxal intersecção com o renovado movimento de redescoberta de Portugal como nação oceânica. Numa perspetiva holística, ecológica e cultural propomos aqui revelar alguns momentos da transfiguração do tão publicitado “melhor peixe do mundo” ao longo de um intrincado percurso, desde que é capturado no mar até à sua apresentação como produto artesanal de origem local. Esse amplamente reproduzido passe de magia: “do mar, diretamente para a sua mesa!”
El sendero industrial del almidón nativo en Argentina: elecciones técnicas en una cooperativa de productores
Authors: Padawer Ana
Published: November 2023

El almidón de mandioca (Manihot esculenta, Cranz) se obtiene actualmente en Argentina mediante técnicas industriales de tratamiento de las raíces. Con ellas se produce la fécula conocida comercialmente como “nativa”, ya que se utilizaba para alimentación humana en América desde tiempos previos a la colonización europea. A diferencia de otros países de Latinoamérica donde la mandioca se ha patrimonializado a partir de la gastronomía de tradición indígena, en Argentina este cultivo ha seguido casi exclusivamente un sendero industrial modernizador, donde los pequeños productores descendientes de colonos europeos juegan un lugar protagónico. Mediante un trabajo etnográfico con una cooperativa de productores/as que elabora almidones, analizo algunas elecciones técnicas que realizaron los cooperativistas, resolviendo los problemas más importantes que emergieron transitando este sendero industrial en las últimas tres décadas, mediante comunidades de práctica articuladas dentro de las almidoneras.
Market Basket Analysis of a Health Food Store in Thailand
Authors: Singha Kanokwan , Parthanadee Parthana , Kessuvan Ajchara , Buddhakulsomsiri Jirachai
Published: November 2023

This article presents a market basket analysis of a health food store in Thailand. The analysis identifies data attributes that frequently occur together in the dataset. Frequent occurrences of data attributes representing customer purchasing behaviors are extracted as association rules using the frequent pattern growth algorithm. The generated associations are evaluated using standard measures based on occurrence counts and an additional financial measure. Marketing strategies in the form of cross-selling pairs of specific products are then designed based on the data attributes appearing in the significant associations. The cross-selling products are offered at discounted prices and promoted in marketing campaigns. A break-even analysis is performed to estimate the required number of additional sales volumes from each marketing campaign to compensate for the discounted prices. The presented use case demonstrates the effectiveness of extending the market basket analysis to include a financial measure that can lead to practical marketing campaigns.
High Temperature Inertial Navigation Sensors, Electronics and Packaging for reliable 300°C Operation
Authors: Andarawis Emad , Shaddock David , Popp Jeremy , Lin David
Published: November 2023

Conventional oil and gas drilling measurement while drilling (MWD) systems are typically designed to operate at temperatures <200°C. To increase the efficiency of drilling unconventional geothermal wells, downhole MWD tools are needed that can operate in the unique thermal challenges encountered in enhanced geothermal systems (EGS).

GE demonstrated a 300°C downhole navigation system. The system utilizes GE’s internally developed state-of-the-art MEMS multiple ring Gyroscope (MRG), and a high temperature gyroscope control and readout application specific integrated circuit (ASIC).

The MRG, ASIC and associated high temperature, high reliability packaging were integrated to demonstrate the performance and functionality of the gyroscope across the temperature range from room temperature to 300°C. Specialized long-term capable high temperature test platforms were developed to enable the characterization and testing of the gyroscope system and utilized to validate application-relevant lifetime capability.
Designs of ultra-HPHT Electrical Component Packages for Downhole and Geothermal Wellbore Logging Tool Integrations
Authors: Xia Hua , DeWire David
Published: November 2023

Conventional dielectric sealing materials (PEEK, glass and glass-ceramic) used for sealing electrical feedthroughs, connectors, interconnectors and bulkheads in electronic packages can provide reliable downhole wellbore long-term logging tool service up to 150C or short-term logging service for greater than/equal 200C, due primarily to low glass transition temperature of the used sealing materials. This paper will demonstrate that the maximum allowable operating pressure and temperature could be from 20KSI to 100KSI and from 200C to 400C with Borosilicate and Bismuth-Boron-Silica (XTS) sealing glasses. Borosilicate glass sealed Inconel-Kovar/Kovar electronic housing could maintain reliability up to the maximum pressures of ~35KSI at 200C or 25KSI at 400C. Similarly, a Bismuth-Boron-Silica XTS glass sealed stainless steel electronic package housing could have a maximum operating pressure of ~100KSI at ≤150C or ~50KSI at 300C temperature. It has been found that high glass transition temperatures of (440-560)C for Borosilicate glass and (440±10)C for Bismuth-Boron-Silicate (XTS) glass are key for making highly reliable ultra-HPHT electronic component packages. It is shown that the tetrahedral diamond-like microstructures of these sealing glasses are keys to ensure water-repelling properties to maintain sufficient electrical insulation resistance regardless of their use in water or moisture-rich wellbores. Moreover, compressive pin stress is found to be additional key for mitigate frequently observed glass seal cracks during logging tool field services.
In Situ Reduction-Sintering to Produce Copper Interconnects for High Temperature Electronics
Authors: Zuo Yang , Mannan Samjid H.
Published: November 2023

This study presents a special in situ reduction-sintering of CuO and Cu nanoparticles. The microstructure and strength of sintered Cu joints by CuO and Cu nanoparticle were compared. The reduced Cu particles of CuO have a larger size of 1 μm and lower sinterability which results in an insufficient sintering of Cu. In contrast, the sintered Cu nanoparticle structure shows a strong bonding of Cu and plastic deformation after fracture. Owing to the removal of the original oxide and limitation of its re-appearing during sintering by the proposed method, high sintered Cu joint strength over 30 MPa was achieved without the need for pressurized sintering or protective gas atmospheres.
Study of Late Complications of Restorative Proctocolectomy with Ileal Pouch–Anal Anastomosis for Ulcerative Colitis Operated at a Tertiary Care Center and Factors Affecting to That
Authors: Jillawar Nikhil , Bandla Vijetha , Galam Pushkar , Vajja Ramya , Nirhale Dakshayani
Published: November 2023

Background and Objective:

Restorative proctocolectomy with ileal pouch–anal anastomosis (RPC-IPAA) is usually preferred surgical treatment for ulcerative colitis (UC). Although treated primarily medically, some refractory and complicated cases of UC may require surgical intervention. It eliminates chronic UC and the risk of colonic cancer. This research aims to study the risk factors associated with the development of postoperative complications.

Methodology:

For this cohort study, we included all the patients who underwent RPC-IPAA in the Department of Gastroenterology, Sheth Vadilal Sarabhai General Hospital, Ahmedabad, over 6 years. Data of the patients were obtained retrospectively from the medical records. We collected the data and analyzed using appropriate statistical tests to look for preoperative patient variables associated with late complications. Late complications were defined as those developed after 1 month.

Results:

Out of 32 patients, 19 were male and 13 were female, with an average age of 32.3 years at the time of operation. Thirteen patients developed complications such as pouchitis (n = 6), incisional hernia (n = 3), bowel obstruction (n = 2), pouch leakage (n = 1), and erectile dysfunction (n = 1). We found serum albumin <3 mg/dl and pancolitis associated with more postoperative late complications with P = 0.007 and 0.04, respectively, which is statistically significant.

Conclusion:

This study demonstrates that low preoperative albumin level and pancolitis are risk factors for late complications of IPAA. Preoperative nutritional support, especially albumin, could reduce late complications.
Clinicopathological and Immunohistochemical Characterization of Gastrointestinal Stromal Tumour at Four Tertiary Health Centers in Nigeria Using CD117, DOG1, and Human Epidermal Growth Factor Receptor-2 Biomarkers
Authors: Rasheed Mumini Wemimo , Abiodun Afolayan Enoch , Eziagu Uchechukwu Brian , Idowu Najeem Adedamola , Kabiru Abdullahi , Adegboye Taiwo Adeyemi , Oluogun Waheed Akanni , Ayoade Adekunle Adebayo
Published: November 2023

Aims:

Gastrointestinal stromal tumors (GISTs) are neoplastic lesions that primarily affect the digestive tract and develop from interstitial cells of Cajal. These lesions require histopathological and immunohistochemical characterization due to their malignant potential and personalized treatment. In this investigation, the sex, age, lesional sites of origin, histopathological types, the prevalence of human epidermal growth factor receptors (HER-2) expression, prognostic indices (based on tumor size and mitotic figures), expression of CD117 and DOG1, and characteristics of patients with GIST were all characterized.

Materials and Methods:

This was a retrospective cross-sectional analysis of GIST cases seen at four tertiary health-care centers in Nigeria over a 10-year period (2008–2017) and investigated utilizing histopathological and immunohistochemical (CD117, DOG1, and HER-2) methods.

Results:

In this investigation, there were twenty GIST cases. Notably, the majority (40%) of the cases had tumors with sizes between 7.0 and 8.0 cm; the stomach was the most frequent site (70%) and the spindle cell type of GIST was the most prevalent (80%) histopathological type. In addition, the stomach was significantly associated with GIST as an origin site (with a P = 0.001), and 100% and 50% of these tumors were immunoreactive with CD117 and DOG1, respectively.

Conclusions:

In our study, GISTs most frequently develop in the stomach, and CD117 and DOG1 are essential for correctly diagnosing these tumors. However, HER-2 immunoreactivity is a predictive marker of survival for personalized care.
A Report of Takotsubo Syndrome after a Left Pneumonectomy for Large Non Small Cell Lung Cancer
Authors: Rabiou Sani , Lamboni Damessane , Afassinou Yaovi Mignazonzon , El Boussaadani Bouchaib , Malick Abdel M. , N’Dihokubwayo Eric
Published: November 2023

Takotsubo syndrome is a cardiomyopathy consisting of myocardial sideration occurring after emotional stress that is characterized by transient apical bloating of the left ventricle. We report the observation of a 69-year-old patient, who underwent a left pneumonectomy for a large left bronchopulmonary apical cancer with the postoperative course complicated by acute heart failure with dyspnea. The diagnosis of takotsubo syndrome was by exclusion after eliminating the other etiologies of dyspnea postpneumonectomy.
A Case of Malignant Pleural Effusion with Carcinoma en Cuirasse Drained with Foley Catheter and Underwater Sealed Bottle
Authors: Okonta Kelechi Emmanuel , Ocheli Emmanuel O. , Alabo Geoffrey I. , Onuah Arthur I. , Anizoba Chiazokam T. , Ojo Michael D.
Published: November 2023

Managing malignant pleural effusion coexisting with a carcinoma en cuirasse (CEC) is challenging, especially with pleural effusion, which is to be evacuated with a chest tube that should be anchored to the skin of the chest using a nonabsorbable suture. A 47-year-old female patient presented to the surgical outpatient clinic with complaints of a week’s history of worsening breathlessness and intermittent dry cough. Two years before this complaint, she had a biopsy of an ulcerating right breast mass which revealed a triple-positive invasive ductal carcinoma. She received neoadjuvant chemotherapy and subsequently had a mastectomy that was followed by radiation to the chest wall and adjuvant chemotherapy. The general examination revealed a middle age woman who was dyspneic, with the chest showing a mastectomy scar and evidence of CECs. A diagnosis of right massive pleural effusion was made, which was completely drained by a Foley catheter followed by chemical pleurodesis. This is the first report of the coexistent of this condition, for which a patient would need urgent intervention. Instead of using a chest that would have required anchoring it on the infiltrated chest skin, an improvised urinary catheter desirable as self-retention could be achieved by inflation of the balloon.
Comparative evaluation of efficacy of C-reactive protein versus total leucocyte count as marker for monitoring patients with orofacial space infection of odontogenic origin
Authors: Jadhav Dhanashri , Singh Gaurav , Mishra Madan , Srivastava Abhinav , Mondal Shubhamoy
Published: November 2023

Objective:

To compare and evaluate the efficacy of C-Reactive Protein and total leucocyte count as markers for monitoring patients of odontogenic space infection.

Materials and Methods:

Blood samples were taken preoperatively and post-operatively at day 1, day 2, day 3 and day 7 for measuring the levels of CRP and TLC. The trends of CRP and TLC were analysed against the Clinical Severity Scale (CSS). The study was carried out on patients of odontogenic space infection, and minimum of 50 patients were selected for this study. Comparative evaluation of C-reactive protein (CRP) versus total leucocyte count (TLC) was performed.

Results:

Data were analysed using Statistical Package for Social Sciences (SPSS) version 21. Inferential statistics were performed using Spearman Correlation. The level of statistical significance was set at 0.05. The result of the study demonstrates that the C-reactive protein (CRP) was found to be more consistent indicator for monitoring the patients of odontogenic space infection than TLC, Differential Leucocyte Count (DLC) and erythrocyte sedimentation rate (ESR).

Conclusion:

We conclude that CRP should be incorporated as monitoring tool, and it serves as a better indicator than TLC for managing patients with orofacial space infections of odontogenic origin.
Significance of 25(OH) D3 in Early Dental Implant Failure (EDIF) during osseointegration—A systematic review
Authors: Shah Anshdha , Singh Kalpana , Rao Jitendra , Tiwari Bhawna , Singh Khaidem Deba
Published: November 2023

Bone metabolism is a key factor for successful osseointegration, and low vitamin D levels may negatively impact the process of osseointegration after implant placement. The study was aimed at evaluating the relation of vitamin D levels with dental implant osseointegration and subsequently the success or failure of the implant. The focused questions were—What is the effect of vitamin D levels on successful dental implant osseointegration and what is the effect of vitamin D supplementation on successful implant osseointegration? A search was conducted on PubMed and Google Scholar using the terms “vitamin D,” “cholecalciferol,” “1,25(OH) D,” “dental implant,” “osseointegration,” and “bone implant contact” for a period of 10 years from 2011 to 2020. Clinical trials, cross-sectional studies, case series, and case reports were included. A total of ten studies were included after the screening process. Five of these studies evaluated the effect of vitamin D supplementation on osseointegration, whereas five only evaluated the effect of vitamin D deficiency on dental implant osseointegration. Only five of these studies reported dental implant failure varying from 7% to 13% in vitamin D deficient/insufficient groups. Positive relationship exists between serum vitamin D levels and dental implant osseointegration; however, few studies failed to report any relation. More prospective clinical research studies as well as randomized controlled trials are needed to show a significant correlation between decreased serum levels of vitamin D and increased risk of dental implant failure in perspective of vitamin D supplementation which can promote the osseointegration of dental implants.
Tapia syndrome following TMJ gap arthroplasty: A case report and review of literature
Authors: Jawa Sonal , Singh Neeraj , Naruka Suresh S.
Published: November 2023

Tapia syndrome is an extremely rare condition involving simultaneous paralysis of cranial nerves X (recurrent laryngeal branch) and XII. It is mostly believed to occur as a neuropraxic complication of intraoperative airway management. We present a unique case of a 17-year-old female with dysphonia, dysphagia, and deviation of tongue to the right side following temporomandibular joint gap arthroplasty for release of left TMJ ankylosis. A clinical diagnosis of Tapia's syndrome was made on exclusion of surgical or intracranial etiology and conservative management was performed. The aim of this study is to discuss the possible etiology, symptoms, and treatment of this disease along with a review of seven cases of Tapia syndrome associated with maxillofacial surgeries.
Intraosseous schwanomma: A rare case report
Authors: Sikkerimath Basavaraj C. , Jose Anu , Anshu Aditya
Published: November 2023

Intraosseous schwanommas are benign tumors that arise from Schwann cells. They are common in soft tissues of the head and neck region. However, intraosseous schwanommas are rare accounting for less than 1% of all bone tumors. They commonly manifest as a swelling that is usually asymptomatic. They can be treated with simple enucleation and curettage with a low rate of recurrence and malignant transformation. Histopathology alone is insufficient for arriving at a definitive diagnosis. Immunohistochemistry plays an important role in such cases for correctly establishing and confirming the diagnosis. Here, we present a rare case of intraosseous schwanomma (neurilemmoma) of the mandible.
A comparative study on efficacy of immediate and delayed placement of cylindrical and tapered dental implants: A clinical prospective study
Authors: Mittal Gaurav , Garg Ritesh , Rathi Abhishek , Ghatak Debi P. , Suman Sonu K.
Published: November 2023

Introduction:

The study deals with improving the understanding of implant design in various situations.

Materials and Method:

40 implants were placed out of which 20 were tapered and rest were cylindrical. These were further divided into immediate and delayed settings. The patients were followed upto 6 months and the results were compiled.

Result:

Statistically significant difference were found between tapered and cylindrical implants in terms of quality of osseointegration and maintenance of crestal bone height.

Conclusion:

It has been gathered from the study that while delayed placement suggests waiting time period varying between 3 and 6 months, it offers a predictable procedure in terms of visibility, good implant-bone contact, and closure all of which, promote a better outcome for dental implant therapy. Immediate implant placement solution is very viable in reducing the time period involved in dental implant therapy. Apart from few to minimum contraindications, it can be predictably performed.