bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of main variables affecting the 112 Emergency Call
Authors:   The Korean Data Analysis Society, Lee Sang Duk
Published: October 2023

With the development of data science, various machine learning and deep learning models are being utilized to predict the number of 112 emergency calls with high accuracy. Predicting emergency response volume can help law enforcement agencies efficiently allocate police resources to high-risk areas and dates, thereby preventing crime. However, it is also important to understand the factors that contribute to high call volume on specific dates and times. Police officers may have a sense of whether call volume will be high or low based on their experience and intuition. Similarly, the general public may make assumptions about which factors contribute to higher call volumes. In fact, there is a significant difference in call volume between holidays and weekdays, as several studies have confirmed that holidays have a significant impact on call volume. However, clear variables can reduce the impact of other variables on the prediction model and can become the sole criterion for all predictions. Additionally, variables with relatively low variability may not have a significant impact on call volume prediction. For these reasons, it is important to understand the impact of each variable on prediction results, select the necessary variables for predicting 112 emergency calls, and understand why the model selects certain variables to build an effective prediction model. Through this study, we can examine the key variables that influence the model and their explanatory power, and provide the essential variables needed to construct a 112 emergency call prediction model, without relying solely on model performance improvement.
MANEJO E TRATOS CULTURAIS NA CULTURA DA ALFACE
Authors: Silva Martha Freire , Assunção Cleverton Timóteo , Condé Samyra Alves , Nascimento Heloísa Rocha , Moura Lorena de Oliveira , Santos Nátally Emanuelly , Damião Victor Hugo Borsuk , Rosmaninho Lucas Barbosa de Castro
Published: October 2023

A alface tem sido amplamente produzida e comercializada mundialmente. Ela é uma hortaliça folhosa, rica em vitaminas, minerais e fibras, que auxiliam na regulação metabólica do corpo. Há estudos que comprovam que o consumo de hortaliças reduz os níveis de glicose no sangue, a pressão arterial e os lipídeos séricos, além de atuar na prevenção de doenças crônicas, sendo o consumo de alface altamente benéfico para a saúde humana. Por ser uma cultura de ciclo rápido e já bastante explorada comercialmente, a maior parte dos produtores de hortaliças, produzem a alface. No entanto, muitas vezes, não é executado o manejo e tratos culturais de maneira adequada, incorrendo em perda de produtividade. Assim, este capítulo visa elucidar e discutir aspectos importantes para o manejo da alface, tais como o ciclo da cultura, as cultivares e os grupos varietais, as exigências climáticas, os fatores que afetam o seu desenvolvimento, os tipos de cultivo e os tratos culturais apropriados para a cultura.
DO ABORTO VEIO A LUZ: ACUMULAÇÃO PRIMITIVA, PATRIARCADO E CAÇA ÀS BRUXAS
Authors: Ferreira Clarissa Pepe , Rossi Mariana Almeida Picanço
Published: October 2023

Este artigo discute a necessidade da regulamentação do abortamento voluntário irrestrito no Brasil. Realiza uma análise interdisciplinar concentrada em enfoques menos examinados no tocante a essa temática. Tem o propósito de colaborar com um debate político-criminal qualificado, sob a ênfase de uma perspectiva feminista voltada ao escrutínio da capacidade de autodeterminação e emancipação do sujeito. A metodologia empregada foi a interpretação bibliográfica cruzada e comentada de quatro obras: “História do aborto”, de Giulia Galeotti; “Genealogia da Moral”, de Nietzsche; “Domínio da vida”, de Ronald Dworkin; e “Calibã e a bruxa” de Silvia Federici. Vida e corpo são os conceitos fundamentalmente problematizados, e será discutida a relação entre corpos femininos, patriarcado, cristianização, relação de poder, controle estatal e capitalismo. São objetivos deste estudo: demonstrar como o Estado de Direito no Brasil está legitimando o patriarcado e a caça às bruxas na atualidade; demonstrar que a negação do direito ao abortamento voluntário é uma potente estratégia de controle dentro da esfera das políticas da existência; demonstrar que a finalidade do controle estatal das políticas da existência é a garantia da acumulação primitiva.
ANÁLISIS DEL USO DE INTELIGENCIA ARTIFICIAL PARA DISMINUIR EL DÉFICIT DE ATENCIÓN EN ESTUDIANTES UNIVERSITARIOS
Authors: Díaz Estrada Diana Margarita , Mindani Cáceres Carmen Gisela , Calizaya Llatasi Fredy Grimaldo , Calizaya Llatasi Elmer Elio , Astete Tebes Ronald , Cusilayme Barrantes Helfer Rudel , Paredes Calatayud Edith Fernanda , Leon Tacca Alicia Magaly , Medina Espinoza Wenceslao Teddy
Published: October 2023

Objetivo: Esta investigación tuvo como objetivo principal evaluar el impacto de la Inteligencia Artificial (IA) en la gestión del déficit de atención en estudiantes universitarios. Metodología: La metodología incluyó una exhaustiva revisión de la bibliografía sobre estrategias tradicionales y desafíos asociados con el déficit de atención, así como la propuesta e implementación de soluciones basadas en IA. La personalización del aprendizaje, gestión del tiempo, monitorización del comportamiento, y sistemas de alerta temprana fueron áreas clave abordadas. Resultados: Los resultados supuestos indican una mejora significativa en la atención y el rendimiento académico, respaldada por retroalimentación positiva de usuarios. Ajustes iterativos basados en la retroalimentación subrayan la flexibilidad y adaptabilidad de las soluciones. Sin embargo, se identificaron desafíos éticos y de privacidad, resaltando la necesidad de precauciones en la implementación de la IA. Conclusión: la IA demuestra eficacia en mejorar la experiencia educativa, pero se requiere un enfoque ético y precauciones continuas. Este estudio proporciona perspectivas para la sostenibilidad y escalabilidad de las propuestas de IA, enfocándose en una mejora constante para abordar el déficit de atención de manera efectiva.
REVISITANDO O ENSINO DE QUÍMICA NAS ESCOLAS DA REDE PÚBLICA DE ENSINO FUNDAMENTAL E MÉDIO DE ITAPETINGA-BA: O OLHAR DOS(AS) ALUNOS(AS)
Authors: NUNES Amisson dos Santos , ADORNI Dulcinéia da Silva
Published: October 2023

Este artigo teve por objetivo identificar a percepção dos(as) estudantes da Educação Básica sobre a importância atribuída à Química em sua trajetória de formação acadêmica e as relações com o seu cotidiano. Originou-se a partir de uma pesquisa de natureza quanti-qualitativa, desenvolvida em 2010, como parte do Estágio I do curso de Licenciatura em Química da UESB/Itapetinga, cujos dados foram agora revisitados devido à continua relevância da temática e suas questões. A coleta de dados foi realizada por meio de um questionário com dez perguntas objetivas, incluindo uma última que exigia uma justificativa detalhada. Participaram da pesquisa 315 estudantes selecionados(as) voluntariamente entre os(as) matriculados no 9° ano do Ensino Fundamental e nos três anos do Ensino Médio em escolas da rede pública de ensino municipal e estadual de Itapetinga-BA. Os resultados indicaram lacunas no processo de ensino-aprendizagem na Educação Básica, especialmente em relação à falta de contextualização dos conceitos químicos, reforçando a necessidade de uma abordagem que relacione a Química com o cotidiano dos(as) estudantes, promovendo um aprendizado mais significativo e motivador. Sugeriram também a necessidade de desmistificar estereótipos negativos sobre a Química, tanto como uma área de conhecimento valiosa na formação na Educação Básica quanto como uma opção de carreira profissional.
Beden Eğitimi ve Spor Öğretmenlerinin Tükenmişlik Düzeyleri ve Benlik Saygısı Arasındaki İlişkinin İncelenmesi (Trabzon İli Örneği)
Authors: KIRKBİR Süleyman Samet , KUL Murat
Published: October 2023

Bu araştırmada. beden eğitimi ve spor öğretmenlerinin tükenmişlik düzeyleri ve benlik saygısı arasındaki ilişkinin incelenmesidir. Araştırmanın evrenini Trabzon ilinde görev yapmakta olan beden eğitimi ve spor öğretmenleri oluştururken örneklem grubunu evrenden kolaylama yöntemi ile ulaşılan kişiler oluşturmaktadır. Katılımcıların tükenmişlik düzeylerini ölçmek için “Tükenmişlik Ölçeği”. benlik saygısı düzeylerinin ölçülmesi için ise “Rosenberg Benlik Saygısı Ölçeği” kullanılmıştır. Verilerin analizi için gruplar arası karşılaştırmalarda Kruskal Wallis Testi ve Mann Whitney U Testi kullanılırken. ilişki testlerinden Spearman Korelasyon analizinden faydalanılmıştır. Elde edilen bulgulara göre; beden eğitimi ve spor öğretmenlerinin tükenmişlik düzeyleri cinsiyet. çalışılan okul türü. görev yapılan okulda spor salonu olma durumu ve görev yapılan bölge durumuna bağlı olarak farklılık göstermezken. medeni durumları. aylık gelir düzeyleri ve spor geçmişine sahip olma durumlarına bağlı olarak gruplar arasında farklılık göstermiştir. Tükenmişlik düzeyleri ile yaş. ortalama gelir düzeyi ve hizmet süreleri arasında negatif yönde ilişkilerin olduğu sonucuna da ulaşılmıştır. Benlik saygısı düzeyleri cinsiyet. medeni durum. aylık gelir düzeyi. çalışılan okul türü. görev yapılan okulda spor salonu olma durumu. görev yapılan bölge durumu ve spor geçmişine sahip olma durumlarına bağlı olarak farklılık göstermemiştir. Benlik saygısı düzeylerine yönelik korelasyon analizi sonucunda da yaş. ortalama gelir düzeyi ve hizmet sürelerinde ilişki olmadığı tespit edilmiştir. Sonuç olarak; beden eğitimi ve spor öğretmenlerinin tükenmişlik düzeyi ile benlik saygısı düzeyleri arasında negatif yönde ilişki olduğu sonucuna ulaşılmıştır.
Predictors of therapeutic response to specific therapy in distal chronic thromboembolic pulmonary hypertension
Authors: Valieva Z. S. , Lyapina I. N. , Martynyuk T. V.
Published: October 2023

Aim. To assess therapeutic response to specific therapy in patients with distal CTEPH who are ineligible for surgical management as pulmonary endarterectomy (PEA) or balloon pulmonary angioplasty (BPA).

Materials and methods. The study included inoperable patients with CTEPH (n=53) who are ineligible for surgical management as pulmonary endarterectomy or balloon pulmonary angioplasty. The effectiveness of specific therapy were assessed after dividing the patients into improvement or nonimprovement groups based on the following indicators: functional class I-II (WHO), mean pulmonary artery pressure according to right heart catheterization ≤40 mm Hg, pulmonary vascular resistance ≤400 dyn×s×cm-5, cardiac index ≥2,5 L/min/m2 , decrease in N-terminal brain natriuretic peptide >30%, and increase in 6-minute test distance >30 m at 12th-month follow-up compared to baseline parameters.

Results. There were no differences in groups by gender, age, and received specific therapy. Multiple logistic regression was performed, resulting in a model for predicting clinical improvement with sensitivity (57,1%) and specificity (87,1%), p=0,002. It was revealed, that the absence of the loss of pulmonary vascularity by X-ray at the time of verification of the diagnosis in patients with CTEPH by 5,91 times increases the chance of achieving clinical improvement after 12 months of the specific therapy, while the absence of signs of heart failure by 5,79 times, and degree of pulmonary valve insufficiency 0-1 according to echocardiography by 9,2 times, respectively.

Conclusion. Early initiation of specific therapy in inoperable CTEPH patients due to distal lesions with the absence of severe vascular remodeling and heart failure symptoms leads to the better therapeutic response after 12 months of treatment.
Optical Observations of the Type Ia Supernova 2022hrs
Authors: Risin Sophia , Jacobus Cooper , Altunin Ivan , Brink Thomas G. , Patra Kishore C. , Zheng WeiKang , Yang Yi , Pichay Neil , Fitzgerald Michael , Boyce Grady , Boyce Pat , Filippenko Alexei V.
Published: October 2023

We present optical photometry and spectra of supernova (SN) 2022hrs (distance ∼ 19 Mpc). It was classified as a Type Ia SN (SN Ia) based on its optical spectra, which exhibited high velocities in both Si ii and Ca ii absorption lines. The light curve of SN 2022hrs was typical of an SN Ia, with a peak magnitude of 13.01 ± 0.30 in B and a time interval of 14.5 days between detection and peak; its optical spectra are also normal. It is a standard SN Ia with no evidence of circumstellar material.
Geneviève Poujol socio-historienne des associations et de l’éducation populaire (1930-2023)
Authors: Lebon Francis , Martin Jean-Paul
Published: October 2023

Femme aux multiples réseaux, Geneviève Poujol (1930-2023) a profondément marqué, comme socio-historienne, les recherches sur le monde associatif, l’éducation populaire et l’animation socioculturelle au cours des années 1970-2000, que l’on pourrait qualifier de « moment Poujol ». Son rôle à la revue des Cahiers de l’animation ou à la Société française des chercheurs sur les associations a été considérable. Ses enquêtes ont concerné principalement le métier d’animateur et l’histoire de l’éducation populaire. Elle a en particulier modélisé la dynamique de la création d’associations et engagé un vaste chantier prosopographique sur les militants associatifs et culturels.
Des disputes amicales aux tribunaux numériques : la régulation des conflits par les adolescents via les réseaux sociaux numériques
Authors: Bortolotti Rosa Maria
Published: October 2023

En mobilisant la sociologie du conflit, l’article propose de montrer à travers la vision des adolescents, comment ces derniers investissent les réseaux sociaux numériques comme des lieux de socialisation amicaux mais aussi de conflictualité. L’autrice s’appuie sur des entretiens réalisés avec une quarantaines de jeunes de quartiers populaires dans le cadre d’une recherche doctorale visant à analyser leurs pratiques numériques. Elle étudie comment leurs conflits se développent et se transposent dans les réseaux sociaux numériques tout en distinguant ce qui relève de situations de cyberviolence et de formes contemporaines de régulation des divergences.
Lire et devenir adulte
Authors: Hommel Élodie , Lavielle Julie
Published: October 2023

À partir d’entretiens biographiques approfondis menés auprès de jeunes adultes, cet article étudie la place que joue la lecture dans une période où l’entrée dans la vie active et la décohabitation parentale bouleversent les conditions de vie. Il analyse, d’une part, la manière dont les pratiques de lecture se reconfigurent dans ce contexte incertain et, d’autre part, le rôle de la lecture dans l’accompagnement et la mise en sens des changements biographiques. L’enquête montre que la lecture joue un rôle important dans la construction des jeunes adultes, mais que son importance et ses modalités d’évolution varient fortement en fonction de leur situation socioprofessionnelle.
Les vivants, empreintes de leur biotope (Anaximandre, Démocrite)
Authors: Therme Anne-Laure
Published: October 2023

Pour les premiers penseurs grecs, si l’apparition et l’évolution des espèces sont dues à une causalité physique nécessaire, celle-ci va se manifester, selon les conditions locales, par la réalisation d’une immense variété de possibles. La zoogonie de Démocrite témoigne ainsi du fait qu’avant de faire espèce, chaque vivant a d’abord été un individu, dont le type caractéristique se révèle être l’empreinte ( tupos ) singulière de son biotope propre. Par ce terme, on entend rendre compte de l’inscription de chaque vivant dans une imbrication d’enveloppes ou membranes plastiques en interaction mutuelle, qui constitue son monde et caractérise son bios , le mode d’existence par lequel il devient tel.
Entre les légumes et les poissons
Authors: Huneman Philippe , Noûs Camille
Published: October 2023

La question qu’on nomme aujourd’hui des « genres naturels » en métaphysique porte sur les « jointures » du monde : quelles classes de choses constituent le monde et existent réellement ? Si nominalistes et réalistes s’opposent depuis longtemps sur la possibilité même de répondre à cette question, les sciences modernes proposent des découpages en genres naturels qui contrastent souvent avec l’image naturelle du monde. Cet article se concentre sur les genres naturels en biologie. Après avoir présenté le principe de réponse offert par la biologie évolutive, à savoir la systématique cladistique, j’expose le paradoxe du poisson, puisque « poisson » n’y est pas un nom de classe objectif, et semble donc aussi peu réel que « légume ». Je montre ensuite comment ce paradoxe est abordé différemment par des conceptions réalistes ou pragmatistes des genres naturels, et, en distinguant plusieurs sortes de pragmatismes en fonction des pratiques sociales auxquelles ils réfèrent la vérité des énoncés, je défendrai un pragmatisme modéré quant aux genres naturels en biologie.
Émotions de groupe et leadership
Authors: Redl Fritz
Published: October 2023

Les auteurs commencent par revenir sur le parcours biographique de Fritz Redl puis décrivent les différentes étapes des publications de ce texte, de sa totalité en 1942 à des reprises partielles en 1955 et en 1962, avant la première traduction française en 1965. Après avoir passé en revue les grandes recherches sur les groupes en éducation et formation en France, ils mentionnent l’écho des travaux de F. Redl en sciences de l’éducation depuis la création de la discipline. Ils soulignent que la conceptualisation de F. Redl permet de dépasser l’idée que les élèves « leaders » dans les classes ont cette place uniquement du fait de leurs caractéristiques individuelles ou de leurs capacités à s’imposer. Son apport montre en particulier que cette place résulte aussi de la cristallisation de processus « émotionnels » communs à plusieurs éléments du groupe.
La psychiatrie forensique en Suisse : au risque de l’instrumentalisation sécuritaire et positiviste
Authors: Gravier Bruno
Published: October 2023

L’article présente une analyse critique du développement de la psychiatrie forensique à partir de la description de l’évolution récente du code pénal suisse et de ses implications sur les institutions judiciaires et pénitentiaires Nous décrivons ainsi la montée en puissance du dispositif des mesures pénales qui conduisent à augmenter la durée des privations de liberté à durée indéterminée pour les délinquants souffrant de troubles psychiques. Ceux-ci, responsables ou irresponsables, étant soumis aux mêmes mesures dans les mêmes lieux de détention, c’est l’évaluation de leur dangerosité qui devient le centre de gravité de l’expertise psychiatrique puis de leur parcours pénal. Le patient est ainsi réduit à une somme de facteurs de risque à contrôler et encadrer. Le manque de structures appropriées et l’ambiguïté de la notion de thérapie forensique contribuent à l’allongement des privations de liberté et aux atteintes aux droits fondamentaux qui en résultent. La pratique psychiatrique forensique, comme expert ou thérapeute, est ainsi soumise à une pression de plus en plus forte pour que les praticiens s’inscrivent dans cette perspective sécuritaire au mépris des principes cardinaux fondant l’acte médical.
Les événements sportifs récurrents à Paris face aux injonctions de mixité sociale
Authors: Bourbillères Hugo , Evrard Barbara , Charrier Dominique
Published: October 2023

La mixité sociale apparaît comme une thématique récurrente du débat public et le sport n’échappe pas à l’utilisation soutenue de ce terme. Toutefois, si le recours à la notion de mixité dans l’événementiel sportif est usuel, on reste en droit de se questionner sur sa mise en œuvre et ses effets. Cet article analyse plusieurs événements sportifs récurrents, publics et associatifs, qui se sont tenus entre 2013 et 2016 à Paris, au prisme du rapport qu’ils entretiennent avec la notion de mixité sociale. Le corpus de données qualitatif est construit à partir d’entretiens, d’analyse documentaire et d’observations in situ. Que ce soit par le concept ou par la rhétorique argumentative, les événements y ont systématiquement recours, mais les effets demeurent incertains. Il apparaît que la recherche de la mixité comme support d’événement sportif récurrent revêt surtout la forme d’une injonction au regard de la prégnance de ce principe dans l’action publique, d’où sa fonction légitimatrice et ses effets postulés.
Fragment d’analyse rétrospective, stratégique et culturelle d’un échec dans l’industrie des articles de sport : l’affaire du rachat manqué de Rossignol par Quiksilver
Authors: Durand Pierre , Suchet André
Published: October 2023

L’industrie des articles et du matériel de sport constitue l’une des dimensions importantes à comprendre dans le système des pratiques et des représentations sportives, mais surtout dans l’étude de la diffusion de ces représentations à l’ensemble de la société à travers ce qu’il est convenu d’appeler communément le sportswear. À partir de sources écrites de presse, de documents internes et de sources orales inédites, cette étude propose une approche des liens entre deux grands groupes de ce secteur, Rossignol et Quiksilver, au moment d’une tentative de fusion. Plus précisément, au-delà d’une approche stratégique et des théories de la contingence technologique ou structurelle, ce travail défend l’intérêt du principe de contingence culturelle. Les résultats montrent que donnant suite à une période de succès dans les années 1990, le groupe Rossignol souffre d’une conjoncture difficile au début des années 2000 (image vieillissante du ski alpin, crise économique…) qui amène à considérer l’intégration au groupe Quiksilver alors en pleine croissance (dans le contexte de la génération glisse et des années fun, au sens de Loret, 1995) comme un moyen pertinent de rajeunissement et de « repositionnement gagnant ». Mais l’affaire fonctionne mal et tourne rapidement au « mariage raté ». Ce travail d’analyse rétrospective discute des facteurs économiques, stratégiques et surtout culturels de cette histoire. Mots clés : contingence culturelle, culture sportive, industrie, fusion, management
Feeding the Dogs
Authors: Bergvall Caroline
Published: October 2023

Kathy Acker was crucial to my development as a writer. I created some years back now a tribute to her as my contribution to an artist-led public project.
A Blockchain-Based Security Model for Cloud Accounting Data
Authors: Gou Congcong , Deng Xiaoqing
Published: October 2023

The popularity of cloud accounting is due to its low cost of entry, efficient data processing, and high business efficiency. However, security issues in cloud storage can affect user trust in the service. To address these security issues, a blockchain-based encryption technology model for cloud accounting data security is proposed. Firstly, the feasibility of integrating blockchain technology and cloud accounting is analyzed. Then, an elliptic curve cryptography-based cloud accounting data security solution is proposed. Blockchain and evidence chain technology are used to ensure data security and support data privacy protection for cloud service providers and third-party auditors. The proposed solution has a small computational overhead, as it does not require exponentiation or bilinear pairing. Experimental results show the proposed solution can enhance user control over cloud accounting data, ensure data transmission security, and improve trust between users and cloud accounting service providers. Moreover, it is more efficient.
Estimation and Convergence Analysis of Traffic Structure Efficiency Based on an Undesirable Epsilon-Based Measure Model
Authors: Cao Xudong , Chen Chenchen , Zhang Lejia , Pan Li
Published: October 2023

To improve transportation efficiency, this paper analyzes the factors of transportation structure from the two levels of transportation—input and system output. An epsilon-based measure model of non-expected output is introduced, and the environmental benefits of transportation are considered. This model is used to analyze the regional transportation efficiency of 30 provinces and cities in China. Tobit regression and geographically weighted regression are applied to analyze the causes and spatial variation of differences in the efficiency of the transportation structure, and corresponding structural adjustment strategies are proposed. The results show that the regression coefficients of the share of secondary industry output in GDP, population density, and social fixed asset investment exert the most significant effects on transportation structure efficiency. The spatial distribution of sub-variable coefficients shows that spatial heterogeneity exists in the degree of influence of various socio-economic factors on the transportation structure efficiency in different regions.
Exploring Digital Agility and Digital Transformation Leadership
Authors: Srivastava Anugamini Priya , Yadav Mohit , Yadav Rohit , Singh Bindu , Dewasiri Narayanage Jayantha
Published: October 2023

This study aims to explore and examine an integrated model predicting digital agility in higher education institutions. In the exploratory phase, semi-structured interviews were conducted with the heads of the institutions to understand their challenges in ensuring digital agility at work in higher education institutions. In the second phase, the integrated model derived from codes taken from interview responses was developed. The first study round identified factors affecting digital agility from word cloud and thematic analysis using grounded theory. Based on the common codes, themes were developed, and an integrated model comprising digital transformational leadership, internal branding, and digital self-efficacy was developed. Then, established measures were taken to test the model, while a novel scale was developed to measure digital agility. Hierarchical regression analysis indicated that digital transformational leadership impacts digital agility with intervening roles of internal branding and digital self-efficacy.
Optimization of Enterprise Financial Performance Evaluation System Based on AHP and LSTM Against the Background of Carbon Neutrality
Authors: Xie Yuxiting
Published: October 2023

This study focuses on meticulously examining energy companies' financial performance, incorporating the principles of environmentally sustainable development. The study employs a comprehensive assessment approach that integrates various metrics from different departments of these enterprises. These abstract indicators are primarily quantified using the analytic hierarchy process (AHP), emphasizing incorporating low-carbon indicators, such as research and development (R&D) in renewable energy, into the evaluation framework. Subsequently, the study utilizes the long short-term memory (LSTM) model to evaluate the performance of individual departments within these companies. Ultimately, the study provides an overarching evaluation of the financial performance of energy enterprises. The proposed model demonstrates its effectiveness in practical testing, achieving an evaluation error of just 1.7%. Moreover, the research also scrutinizes the implications of these financial evaluation results for the transition toward a low-carbon paradigm.
Sugarcane-Bagasse-Fibre-Reinforced Concrete: Evaluation of Compressive and Splitting Tensile Strengths
Authors: Farhan Syed Ahmad , Wahab Mohamed Mubarak Abdul , Shokib Nur Hazimah , Jaleel Faiyaz Ahmed Allif Imran , Husna Nadzhratul , Abd Razak Siti Nooriza , Shafiq Nasir
Published: October 2023

In view of the increasing cost of raw materials and depleting natural resources in many developed countries, adoption of waste in construction materials has to be considered. Fibre-reinforced concrete (FRC) is a type of concrete that employs steel or synthetic fibres. Sugarcane bagasse fibre (SCBF), which is a waste material from the agricultural industry, can potentially be utilized in FRC as an alternative to steel or synthetic fibres. In light of the potential, in the present study, compressive and splitting tensile strengths of sugarcane-bagasse-fibre-reinforced concrete (SCB-FRC) at varying volumes of SCBF were evaluated. Four types of concrete samples were prepared, which are the control sample that does not contain any SCBF and SCB-FRC samples that contain 0.5, 1.0, and 1.5% of SCBF of 5-cm fibre lengths by volume of cement. Samples were cured in water for 7 and 28 days for compressive strength testing and 28 days for splitting tensile testing. Findings indicate that the optimum fibre volume is 1.0%, where the highest compressive strengths of 24.75 and 33.02 MPa were achieved at 7 and 28 days of curing, respectively, and the highest splitting tensile strength of 2.61 MPa was achieved. Formation of fibre bundles during mixing may have resulted in the decrease in strength as the fibre volume was further increased from 1.0 to 1.5%.
Bond Stress Capacity of Steel Reinforcing Bars Embedded in Graphene-Enhanced High-Performance Concrete
Authors: Ismail Fouad Ismail , Husna Nadzhratul , Farhan Syed Ahmad , Shafiq Nasir , Ateya Elsayed
Published: October 2023

Effective and reliable force transfer between steel reinforcing bars and concrete is necessary for reinforced concrete buildings to be designed as efficiently as possible. Significant reductions in load capacity and structural rigidity could be the outcome of inadequate connection between the bars and concrete. With the recent discovery of graphene, new opportunities for the development of nano-sized cementitious additives have emerged. The present study investigates the effect of graphene nanoplatelets (GnP) on the bond stress capacity of steel reinforcing bars embedded in GnP-enhanced high-performance concrete (HPC). Effects of various GnP contents and diameter and embedded length of the bar were evaluated. Bond stress-slip behaviour between the bar and concrete was examined by performing pull out tests on cylindrical samples. Findings revealed that the GnP-enhanced HPC improved the bond stress owing to the confinement and bridging effects of GnP. Addition of GnP at the concentration of 0.02 % increased the bond stress by more than 41.28, 18.9 and 53.90% for steel bars with diameters of 10, 12 and 16 mm, respectively, at the same bar embedded length. Presence of GnP reduced the initial slip of the bar owing to the improved adhesion between the bar and the surrounding concrete.
Influence of Sintering Time with Constant Temperature on the Development of the Tricalcium Silicate Crystallinity
Authors: Jančíků Andrea , Dvořák Karel
Published: October 2023

The article investigates the influence of the sintering time with constant temperature on the development of the tricalcium silicate crystallinity using the Scherrer's and Rietveld method.One suitable raw material mixture consisting of only pure CaCO3and SiO2in their specific ratio of 73.6:26.3 wt.% was selected. This raw material powder was prepared using a wet milling process in the water medium in a PULVERISETTE 6 plan mill. Based on previous research in this area, a firing temperature of 1500 °C was chosen with sintering period of 5, 10, 15 and 20 minutes in an experimental furnace with a manipulator for isothermal sintering of laboratory samples developed by Dr. Chromy. This furnace requires special sample preparation, so a procedure for their preparation was designed and optimized. Thanks to this optimization, it is possible to repeatably prepare identical pellets with the exact parameters for this type of furnace. The resulting pellet weight is 73 mg at a volumetric weight of 2,285 g·cm-3.The results of the firings with different sintering times and constant temperatures showed that the sintering processes and mineral conversion occur very quickly, since after 5 minutes 30.81 wt.% of the mineral tricalcium silicate was identified and after 20 minutes the raw powder was converted to tricalcium silicate in a significant amount, i.e., 72.02 wt.%. At the same time, the crystallinity was monitored using Scherrer's method and after 20 minutes of sintering, the crystallite size of tricalcium silicate reached 104.889 nm. Thus, there was a relatively rapid development of the crystallinity of Alite.
Geopolymer-Concrete-Based Eco-Friendly and Fire-Resistant Concrete Structures: Effect of Exposure to High Temperature at Varying Heating Duration
Authors: Abd Razak Siti Nooriza , Shafiq Nasir , Guillaumat Laurent , Farhan Syed Ahmad , Lohana Vicky Kumar
Published: October 2023

There are concerns towards the vulnerability of geopolymer concrete towards fire. High-temperature conditions instigate physical alterations and chemical reactions in concrete, which progressively breaks down the gel structure of cement. Consequently, the breakdown leads to an increase in tendency of drying shrinkage, changes to colors of aggregates and losses in load-bearing capacity and durability. In the present study, geopolymer concrete samples were exposed to fire at 1000°C at varying heating duration to investigate the effects on mass loss, residual strength and its microstructure properties. Samples with three grades of strength, GEO20, GEO40 and GEO60, were prepared. Six heating durations ranging from 30 to 180 minutes were adopted. Overall, mass losses were less than 3%, ranging from 1.65% as obtained by the low-strength concrete to 2.93% as obtained by the high-strength concrete. For the most part, as heating duration increased, residual strengths decreased, except for when residual strengths of low and medium-strength concrete initially increased at the heating duration of 30–60 minutes, where the exposure to fire facilitated geopolymerization. Analysis of the microstructure reveals that structural integrity of the matrix at high-temperature conditions is adequate. The study investigated the geopolymer concrete is able to resist the exposure to fire and must be seriously considered as an alternative to ordinary-Portland-cement-based concrete for the future of sustainable construction.
Cutting Edge: Bach2 Integrates Cytokine Signals to Arbitrate Differentiation Decisions between T Follicular Helper and Th17 Lineages
Authors: Schroeder Andrew R , Xia Xianyou , Nguyen Kim , Zhu Fangming , Geng Jianlin , Sialer Diego O , Hu Hui
Published: October 2023

CXCR5 is a hallmark of T follicular helper (Tfh) cells. The mechanism of CXCR5 induction, however, is still incompletely understood. In this study, we report that in mice with the absence of transcription factor Bach2, the Th17-inducing cytokines IL-6 and TGF-β together induced CXCR5 expression in vitro. Mechanistically, IL-6/STAT3 drove Cxcr5 promoter activity via the upstream site 1 regulatory element, whereas TGF-β enhanced permissive histone modifications, and the STAT3 binding to the site 1 regulatory element was higher in the absence of Bach2. Subsequently, despite previous studies showing enhanced Th17 cell differentiation in the absence of Bach2 in vitro, we found that in vivo, the Bach2 deficiency led to an enhanced Tfh cell response at the expense of the Th17 cell response. These findings suggest that Bach2 helps integrate cytokine signals to arbitrate differentiation decisions between Tfh and Th17 lineages.
Differentiating Asthma from its mimics
Authors: Waheed Zeeshan , Irfan Muhammad , Salih Mohammad , Sarwar Zubairi Ali Bin
Published: October 2023

All that wheezes is not asthma this adage accredited to Chevalier Jackson emphasizes the importance of differentiating asthma from its mimics, particularly if the patient is not responding to usual therapy. The above statement also warrants further diagnostic evaluation and management of non-asthma conditions that mimic asthma. We present here a case of a middle aged female who presented with severe bronchospasm, initially labeled as asthma but was resistant to usual anti-asthma therapy. After further workup she was eventually diagnosed to have esophageal achalasia.
Short-term mortality among patients with non–small cell lung cancer and respiratory failure: a retrospective study
Authors: Medarov Boris , Challa Tejo Ramam
Published: October 2023

Lung cancer remains the number one cause of malignancy-related mortality in the United States. Identifying risk factors that are predictive of short-term mortality among patients with non-small cell lung cancer will allow the patients, their families and health care providers to be better prepared emotionally for the fatal outcome and may attenuate the cost and distress associated with often futile measures. The objective of this study was to measure the 3-month mortality among patients with non-small cell lung cancer who developed respiratory failure. This retrospective study reviewed the outcome of all patients with inoperable non-small cell lung cancer who were admitted to our hospital with respiratory failure. Respiratory failure was defined as need for mechanical ventilation, noninvasive ventilation, or at least 50% fraction of inspired oxygen. Short-term mortality was defined as death in the hospital or within 3 months of discharge, as well as discharge to hospice; shortterm mortality was found to be 94.4% in the study population. The prognosis of patients with inoperable non-small cell lung cancer and respiratory failure is grave. Short-term mortality among this patient population is close to 100%.
Central lung inflammatory myofibroblastic tumor after aspergillosis and total occlusion of the left pulmonary artery
Authors: Yankov Georgi , Aleksieva Magdalena , Keltchev Asen , Mekov Evgeni
Published: October 2023

Inflammatory Myofibroblastic Tumor (IMT) is a benign tumor that is extremely rare. We present a 54-year-old man who has received 23 years of conservative treatment for IMT, respiratory infections, aspergillosis, and hemoptysis. A left intrapericardial pneumonectomy was performed with efficacy. The left atrial auricle lesion created a massive hemorrhage during chest closure due to contact with the staplers of the left pulmonary artery stapler line. The hemorrhaging was stopped immediately. The patient has entirely recovered one year after surgery, and no adverse events or relapses have occurred.
Post Covid-19 endobronchial tuberculosis misdiagnosed as asthma
Authors: Tran-Le Quoc-Khanh , Vu-Hoai Nam , Nguyen-Thi Phung , Dang-Vu Thong , Lam-Quoc Dung , Nguyen-Ho Lam
Published: October 2023

We present a case of a 21-year-old woman, with prolonged cough and wheezing following a mild COVID-19 infection. Despite multiple attempts to recognize the cause and manage her cough, her symptoms did not improve. A careful examination revealed monophonic wheezing and purulent sputum, raising suspicion for Endobronchial Tuberculosis (EBTB). Chest computed tomography scan showed a tree-in-bud pattern and narrowed the bronchial lumen. Acid-fast bacillus smear and genXpert MTB/RIF test further confirmed the presence of Mycobacterium tuberculosis. This case highlights the importance of considering EBTB as a potential diagnosis for chronic cough, particularly in COVID-19 survivors in tuberculosis-endemic areas.
A rare cause of respiratory failure in pregnancy - acute exacerbation of undiagnosed hypersensitivity pneumonitis mimicking complication of severe preeclampsia
Authors: Anantharaju Arpitha , Upadhya Pratap , C. Sivaselvi , Raj Ashwini , Govindaraj Vishnukath , Dorairajan Gowri
Published: October 2023

Respiratory failure occurs in 0.1-0.2% of pregnancy patients. This can be due to pre-eclampsia, venous thromboembolism, asthma, gastric aspiration, and viral pneumonitis. Rarely exacerbation of underlying diseases (like asthma, Interstitial Lung Disease, ILD, etc.) can cause respiratory failure. The underlying disease can be recognized previously or presented as exacerbation in pregnancy for the first time. Respiratory failure leads to harm to both mother and fetus; hence, the cause should be evaluated as soon as possible. Here, we are describing the case of acute exacerbation of Hypersensitivity Pneumonitis (HP) in a pre-eclampsia patient.
Diagnosis of neurofibromatosis type 1 after resection of intercostal nerve neurofibroma
Authors: Aguinagalde Borja , Zabaleta Jon , Fuentes Marta , Bazterargui Nerea , Lobo Carmen , Izquierdo José Miguel
Published: October 2023

We report a case of a 37-year-old man with an asymptomatic extraparenchymal mass in the left hemithorax. Complete surgical removal of the tumour was achieved through a minithoracotomy and histological analysis confirmed the diagnosis of myxoid neurofibroma. Given this histological diagnosis, the patient was re-examined and many café au lait spots (more than 6, larger than 15 mm in diameter) and neurofibromas (elastic tissue) were observed and the patient was diagnosed with neurofibromatosis (NF) type 1 (von Recklinghausen’s disease). We have found only eight case reports of neurogenic tumours originating from an intercostal nerve; only two of these corresponded to neurofibromas. Among these two patients, only one was a case of NF type 1 and, in contrast to our case, the diagnosis was reached prior to surgery. We present a very rare case of intercostal nerve neurofibroma leading to a definitive diagnosis of NF type 1.
Severe pulmonary air-leakage associated with bi-level positive airway pressure
Authors: González Valverde Francisco Miguel , Gómez Ramos María Jesús , Ruiz Marín Miguel , Méndez Martínez Marcelino
Published: October 2023

The discovery of a severe pulmonary airleakage (PAL) associated with bi-level positive airway pressure (BiPAP) is a truly strange clinical finding, even for a very experienced specialist in pulmonary medicine. We present a woman who developed pneumomediastinum, pneumoperitoneum, retropneumoperitoneum and subcutaneous emphysema while being treated with BiPAP for hypoxic respiratory failure associated with pneumonia. The pulmonary barotrauma completely resolved after discontinuation of BiPAP. PAL following spontaneous BiPAP is benign and self-limited.
A young adult with a fulminant Staphylococcus aureus infection and multiple thrombi
Authors: Martin Eric , Frandah Wesam , Raj Rishi , Nugent Kenneth
Published: October 2023

Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) can induce infections of the skin and soft tissues, as well as pneumonia with necrosis. Following a minor injury, a patient developed ankle cellulitis, MRSA bacteremia, necrotizing pneumonia, respiratory failure, shock, and multiple thrombi. This case illustrates the fulminant course, the potential need for empiric antibiotic coverage upon admission for MRSA, and the high probability of thrombotic complications in these patients.
Aromatase inhibitor therapy in a cystic fibrosis patient with thoracic endometriosis
Authors: Filippova Olga T. , Godoy Heidi E. , Timmins III Patrick F.
Published: October 2023

The thoracic cavity is the number one site for extrapelvic endometriosis, with catamenial pneumothorax as the most common presenting symptom. Its treatment algorithm is similar to the one for pelvic endometriosis, with the goal of inducing a hypoestrogenic state. However, if medical treatment fails, lung resection may be the only option. We present a case of a 44-year-old female with cystic fibrosis and known pelvic endometriosis, who was diagnosed with thoracic endometriosis after presenting with catamenial hemoptysis. After having a recurrence more than four years after a bilateral salpingo-oophorectomy, she was started on aromatase inhibitor (AI) therapy to avoid lung resection. Such therapy with an AI successfully treated recurrent thoracic endometriosis in a patient with cystic fibrosis, i.e. not an ideal candidate for lung resection.
Spontaneous regression of pulmonary pure ground-glass opacity with progression of a solid component during a 40-month follow-up
Authors: Ochi Nobuaki , Takigawa Nagio , Yasugi Masayuki , Harada Daijiro , Yamane Hiromichi , Tanimoto Mitsune , Kiura Katsuyuki
Published: October 2023

A 75-year-old man with a 50 pack-year smoking history underwent a right upper lobectomy due to an early stage lung adenocarcinoma. Simultaneously, pure ground-glass opacity (GGO) on the left upper lobe measuring 6.7 mm in diameter was detected on computed tomography (CT), which was considered atypical adenomatous hyperplasia, a bronchioloalveolar carcinoma, or focal organizing pneumonia/fibrosis. Eighteen months later, the diameter of the lesion increased to 9.0 mm. The lesion further enlarged to 10.4 mm with a small solid component within the GGO at 28 months after the initial CT scan. At the 33- month follow-up, the lesion had decreased in size and a solid component was prominent. Forty months after the initial CT, the lesion seemed to be a fibrotic scar. To the best of our knowledge, no studies have reported a pure GGO progressing with a solid component that regressed spontaneously over such a long period. Although this case seems rare, physicians should be aware that a lung nodule compatible with progression from in situ carcinoma to invasive carcinoma on CT could resolve over 24 months.
Cura e narrazione di sé. Questioni filosofiche
Authors: Gorza Monica
Published: October 2023

Nelle Confessioni, Agostino evoca più volte il tema della cura. Filigrana sottile del libro IX, la cura non è un puro e semplice motivo letterario, ma è una questione che interpella la riflessione filosofica. A partire da alcuni passi dove il vescovo di Ippona presenta il tracciato biografico della madre Monica – ormai in fin di vita – si tenterà qui di comprendere gli intrecci tra cura, biografema e filosofema interrogando la sfera del racconto di sé sviluppato da Paul Ricoeur, che ha lungamente lavorato sul tema della costituzione dell’identità personale attraverso la narrazione. In particolare, si focalizzerà l’attenzione sulla nozione di identità narrativa mettendola in relazione con la concezione ricoeuriana della possibilità. Le analisi che scandiscono i primi due momenti di questo studio permetteranno così di apprezzare come il racconto agostiniano e le ricerche di Ricoeur sulla narrazione possano essere riletti alla luce delle questioni che animano il dibattito bioetico sensibile ai temi della cura e dell’identità personale apportando, mutualmente, nuovi spunti riflessivi