bluuebunny/crossref_metadata_2025 huggingface dataset:
Bibliotheken: Die fünfte Gewalt im Staat?
Authors: Hobohm Hans-Christoph
Published: June 2024

In der schwedischen Debatte um eine Nationale Bibliotheksstrategie wird Bibliotheken teilweise zugeschrieben, sie seien eine Fünfte Staatsgewalt. Der Artikel untersucht die Genese dieser Formulierung und konstatiert, dass in der weiteren Diskussion von diesem aktivistischen Standpunkt wieder abgerückt wird und Bibliotheken letztlich doch wieder als passiv neoliberale Schatztruhen bezeichnet werden. Die Formulierung Fünfte Staatsgewalt nahm ihren Ausgangspunkt in der Feststellung einer allgemeine Demokratiekrise, weshalb diese unter dem Eindruck neuer Demokratietheorie näher beleuchtet wird. Es wird das Konzept der Gewaltenteilung von Montesquieu diskutiert und eine genauere Analyse des verbreiteten Konzepts der Vierten Gewalt vorgenommen. Beides bietet Differenzierungen, die helfen, Bibliothekspraktiken neu zu positionieren. Am Schluss werden vier Aspekte vorgestellt, die sich auf den Impetus der schwedischen Position beziehen lassen, Bibliotheken sollten auf die gesellschaftlichen Veränderungen aktiv reagieren. Als eigenständige Gewalt gehen Bibliotheken aus dieser Analyse jedoch nicht hervor.
Consensus statement on extracellular vesicles in liquid biopsy for advancing laboratory medicine
Authors: Dong Xingli , Lin Yusheng , Li Kai , Liang Gaofeng , Huang Xiaoyi , Pan Jingxuan , Wang Lu , Zhang Dongmei , Liu Tingjiao , Wang Tong , Yan Xiaomei , Zhang Long , Li Xiaowu , Qu Xiujuan , Jia Da , Li Yong , Zhang Hao
Published: June 2024

Extracellular vesicles (EVs) represent a diverse class of nanoscale membrane vesicles actively released by cells. These EVs can be further subdivided into categories like exosomes and microvesicles, based on their origins, sizes, and physical attributes. Significantly, disease-derived EVs have been detected in virtually all types of body fluids, providing a comprehensive molecular profile of their cellular origins. As a result, EVs are emerging as a valuable addition to liquid biopsy techniques. In this collective statement, the authors share their current perspectives on EV-related research and product development, with a shared commitment to translating this newfound knowledge into clinical applications for cancer and other diseases, particularly as disease biomarkers. The consensus within this document revolves around the overarching recognition of the merits, unresolved questions, and existing challenges surrounding EVs. This consensus manuscript is a collaborative effort led by the Committee of Exosomes, Society of Tumor Markers, Chinese anti-Cancer Association, aimed at expediting the cultivation of robust scientific and clinically applicable breakthroughs and propelling the field forward with greater swiftness and efficacy.
CNT/TiO2 nanocomposite for environmental remediation
Authors: Parangi Tarun
Published: June 2024

Nanomaterials and their composites have been proven to be effective materials for various energy and environmental applications. In this way, functionalized polymers and their nanocomposites (NCs) are receiving much attention due to their tunable physico-chemical characteristics, cost and ease of availability. As an environmental application, particularly the removal of toxic dyes, photocatalysis has been reported as an emerging technology. The literature survey shows that functionalized polymer nanocomposites (PNCs) as photocatalysts offer an extensive contribution towards the generation of clean, renewable, and practical forms of energy from light-based pollutant removal as environmental remediation. Here, the present concept provides a brief introduction to the field of photocatalysis and environmental remediation, followed by the application of functionalized PNCs. In this view, TiO2–NCs are reported to be effective photocatalytic materials. In the present study, CNT-doped TiO2 NCs samples have been prepared using the sol–gel method and their photocatalytic activity has been investigated through a dye degradation experiment. Compared to the present studies, here the CNT content taken is very low, and it is found to be effective for the dye degradation part of an environmental cleaning application.
The crystal structure of 6-amino-2-carboxypyridin-1-ium perchlorate, C6H7ClN2O6
Authors: Xing Yalong , Huang Guang
Published: June 2024

C6H7ClN2O6, monoclinic, P21/c (no. 14), a = 9.2699(5) Å, b = 12.5329(6) Å, c = 7.9536(5) Å, β = 99.472(6)°, V = 911.44(9) Å3, Z = 4, R
gt(F) = 0.0442, wR
ref (F
2) = 0.1120, T = 292.98(10) K.
The crystal structure of 1,3,5-tri(1H-imidazol-1-yl)benzene–2,3,5,6-tetrachlorobenzene-1,4-dicarboxylic acid (1/1)
Authors: Wang Airong , Wang Xiaoli , Wang Yanfei , Shi Zhongfeng , Li Jiaming
Published: June 2024

C23H14Cl4N6O4, triclinic, P1̄ (no. 2), a = 9.044(2) Å, b = 11.340(2) Å, c = 11.812(3) Å, α = 95.470(17)°, β = 105.46(2)°, γ = 90.084(18)°, V = 1161.8(5) Å3, Z = 2, Rgt
(F) = 0.0914, wRref
(F
2) = 0.2547, T = 296 K.
Crystal structure of (E)-N-(2-bromophenyl)-4-(4-(3,5-dimethoxystyryl)phenoxy)pyrimidin-2-amine, C26H22BrN3O3
Authors: Sun Wuji , Sun Lixin , Yan Hong
Published: June 2024

C26H22BrN3O3, monoclinic, P21/c (no. 14), a = 17.7467(15) Å, b = 10.7974(8) Å, c = 11.9136(8) Å, β = 96.084°, V = 2270.0(3) Å3, Z = 4, Rgt
(F) = 0.0375, wRref
(F
2) = 0.1205, T = 293 K.
Stochastic maximum principle for partially observed optimal control problem of McKean–Vlasov FBSDEs with Teugels martingales
Authors: Kaouache Rafik , Lakhdari Imad Eddine , Djenaihi Youcef
Published: June 2024

In this paper, we study the stochastic maximum principle for a partially observed optimal control problem of forward-backward stochastic differential equations (FBSDEs for short) of McKean–Vlasov type driven by both a family of Teugels martingales and an independent Brownian motion.
The coefficients of the system and the cost functional depending on the state of the solution process as well as its probability law and the control variable.
We establish partially observed necessary conditions of optimality for this system under assumption that the control domain is supposed to be convex.
Our main result is based on Girsavov’s theorem and the derivatives with respect to probability law.
As an application of the general theory, a partially observed linear-quadratic control problem of McKean–Vlasov type is studied in terms of stochastic filtering.
Development of biogenic mediated Ag/ZrO2 nanocomposite photocatalyst for degradation of toxic dyes in textile effluents
Authors: Vanasundari Karuppaiya , Paramasivam Sivaprakash , Viji Arangarajan , Husain Fohad Mabood , Sankaran Esakki Muthu , Kim Ikhyun
Published: June 2024

Zirconium oxide (ZrO2) nanoparticles doped with silver (Ag) were synthesized utilizing Vitis vinifera leaf extract, offering a non-toxic and cost-effective production method. These nanoparticles were evaluated for their photocatalytic activity against both cationic (CR, EY, MO) and anionic (CV, MG, MB) dyes, alongside electrochemical impedance spectroscopy studies. The incorporation of silver into ZrO2 aimed to enhance the photocatalytic efficiency, particularly under visible light activation, for the significant removal of toxic contaminants. Analysis employing UV-vis spectroscopy and a pseudo-first-order kinetics model revealed that sunlight exposure notably improved dye degradation. Various techniques were employed to assess the physicochemical characteristics, indicating the reduction process in the chemical reaction and confirming nanoparticle formation through chemical bonding, as evidenced by peaks in the IR spectrum ranging from 450 to 660 cm−1. Furthermore, analysis of the UV–vis spectrum revealed bandgaps of 5.1 eV and 4.56 eV, confirming tetragonal and cubic crystal structures with crystalline sizes of approximately 15.7 nm and 17 nm for ZrO2 and Ag–ZrO2 nanoparticles, respectively. Electrochemical impedance spectra demonstrated that the addition of Ag to Zr notably improved charge transfer and electron separation processes.
Distinct Action Signals by Subregions in the Nucleus Accumbens during STOP–Change Performance
Authors: Ashton Sydney E. , Sharalla Paul , Kang Naru , Brockett Adam T. , McCarthy Margaret M. , Roesch Matthew R.
Published: June 2024

The nucleus accumbens (NAc) is thought to contribute to motivated behavior by signaling the value of reward-predicting cues and the delivery of anticipated reward. The NAc is subdivided into core and shell, with each region containing different populations of neurons that increase or decrease firing to rewarding events. While there are numerous theories of functions pertaining to these subregions and cell types, most are in the context of reward processing, with fewer considering that the NAc might serve functions related to action selection more generally. We recorded from single neurons in the NAc as rats of both sexes performed a STOP–change task that is commonly used to study motor control and impulsivity. In this task, rats respond quickly to a spatial cue on 80% of trials (GO) and must stop and redirect planned movement on 20% of trials (STOP). We found that the activity of reward-excited neurons signaled accurate response direction on GO, but not STOP, trials and that these neurons exhibited higher precue firing after correct trials. In contrast, reward-inhibited neurons significantly represented response direction on STOP trials at the time of the instrumental response. Finally, the proportion of reward-excited to reward-inhibited neurons and the strength of precue firing decreased as the electrode traversed the NAc. We conclude that reward-excited cells (more common in core) promote proactive action selection, while reward-inhibited cells (more common in shell) contribute to accurate responding on STOP trials that require reactive suppression and redirection of behavior.
Mecmuada Kaybolan Divan: ʿAlîmî’nin Divanı Örnekleminde Mecmualarda Az Görünür Divanlara Dair
Authors: Direkli Ibrahim
Published: June 2024

Derleme yoluyla meydana getirilmiş mecmua tarzı eserler her geçen gün artan bir ilgiyle akademik neşir çalışmalarına konu edilmektedir. Çalışmamızda derleme tarzı eserlerin muhtevasına bağlı olarak yapılan neşirlerin oluşturulma şekillerine vurgu yapılmıştır. Böylece tek bir mecmuadan faydalanılarak oluşturulan akademik neşirler ve birden fazla mecmuanın referans alınmasıyla oluşturulan neşirler şeklinde kendi içinde iki kategori halinde düşünülmüştür. Mecmualarda edebiyat literatürüne girmemiş ve mecmuaların gölgesinde kalmış divanların bulunabileceği yayımlanmış örnekler üzerinden gösterilmeye çalışılmıştır.
Mecmua kelimesinin klasik Türk edebiyatı kaynaklarında hangi anlam ilgisi ile kullanıldığı, yapılan çalışmalar da göz önünde bulundurularak vurgulanmış, özellikle tezkirelerde mecmuanın kullanımına dair tarama ve inceleme yapılarak kelimenin anlam ilgileri tespit edilmeye çalışılmıştır. Bu bağlamda tezkirelerde mecmua kelimesinin birçok farklı anlam ilgisi tespit edilmiş ve örnek cümleler verilmiştir. Tezkirelerde mecmua kelimesinin kullanımı ile ilgili bazı istatistiki veriler tablo ve grafikler eşliğinde değerlendirilmiştir.
Bu çalışmanın önemli bir bölümü ʿAlîmî Mecmuası’nın incelemesine hasredilmiştir. Bu inceleme neticesinde ʿAlîmî’ye ait şiirlerin olduğu bölüm gerek tertip hususiyetleri gerek muhtevası açısından bir divanın varlığını ilham etmektedir. Mecmualarda az görünür divan örneklerinin varlığına güçlü bir vurgu olabilecek ʿAlîmî Divanı örneğinin tanıtımı ve incelenmesi de çalışmada öne sürülen uygulamaya örnek olarak işlenmiştir.
Makalenin son bölümünde biyografik kaynaklarda ʿAlîmî’nin hayatına dair araştırma yapılmış; ancak mezkûr şair hakkında herhangi bir bilgiye/kayda rastlanmamıştır. ʿAlîmî’nin eserinden yola çıkarak asıl adı, yaşadığı dönem, etkileşim içerisinde olduğu kişiler ve eserlerine dair bilgiler tespit edilip sonuçları paylaşılmıştır.
Baykara Meclisi'nden Yansımalar -Boşanma ve Yeniden Evlenme, İnşâlar, Latifeler, Zekâ ve Hesap Tahmin Etme Oyunları-12
Authors: Kartal Ahmet
Published: June 2024

Zeynüddîn Mahmûd-ı Vâsıfî tarafından Farsça olarak kaleme alınan ve iki ciltten oluşan Bedâyi’u’l-vekâyi’, özellikle Türk kültür ve sosyal hayatına dair ihtiva ettiği geniş ve önemli bilgiler vesilesiyle dikkat çekmektedir. Bu çalışmada, Bedâyi’u’l-vekâyi’in ikinci cildinde yer alan ve Türkistân coğrafyasındaki Türk kültür hayatına ışık tutup bunu günümüze aktaran üç bölümün tercümesine yer verilecektir. Bunlardan ilk bölüm, kocası tarafından boşanan Âhengerânlı bir kadının yeniden evlenmesinden ve dönemin maharet sahibi tabiplerinden Mevlânâ Abdullah-ı Tabîb ile meşhur terzilerinden Üstâd Alî-i Hayyât için yazılan üç inşâdan/sanatlı mektuptan oluşmaktadır. İkinci bölüm, bizzat sultanın isteği üzerine “hikâyet” başlığı altında yazılan 19 latifeden meydana gelmektedir. Üçüncü bölüm ise yine sultanın buyruğu üzerine yedisi Farsça, beşi Arapça olan toplam on iki zekâ ve hesap tahmini oyununu içermektedir.
EXPLORING A MOBILE APPLICATION FOR REPORTING NON-COMPLIANCE WITH HALAL STANDARDS: A PILOT STUDY
Authors: Mustapha Mohamad Reeduan , Hashim Noridayu Mah , Adam Anwar
Published: June 2024

The purpose of this paper is to explore a mobile application for Halal Reporting Non-Compliance. The app is developed to enable users to report non-compliance with the Halal standards and encourage community involvement in promoting Halalan Tayyiban, as well as providing information and education on Halal issues. The project’s objectives include creating a user-friendly app for reporting Halal non-compliance, fostering transparency in the Halal industry, and educating consumers about Halal standards, certification, and compliance. To achieve these objectives, market research methods were chosen in order to assess the viability and value of developing a mobile application. A cross-sectional design using questionnaires was conducted as a pilot study to potential users between May and June 2023. Sixty-eight students participated in this survey. Regarding the most important factors that respondents consider in choosing a mobile application, 48 (70.6%) consider the accuracy of information and trustworthiness of the reporting system as the most important factor when choosing a mobile application that promotes Halal compliance and enables reporting of non-compliance with Halal standards. This initial research serves as a promising foundation for future development of the Halal Report app, with a clear understanding of user expectations and preferences.
UNDERSTANDING THE IMPACTS OF LOCKDOWN AND WORK DISRUPTION: A DEMATEL BASED MODEL
Authors: Abdul Rahman Bin Aman Wong Jankin , Lee Chia Kuang , Ishak Izzati Eliana
Published: June 2024

Almost every construction activity has been affected by the impact of COVID-19. Many construction workers were laid off during the Movement Control Order (MCO) due to lockdowns and the closure of all construction sites. In light of these circumstances, this study aims to investigate the impacts of lockdowns and work disruptions due to COVID-19, as well as explore potential strategies to overcome these impacts. Literature review efforts identified a range of potential impacts. Following a process of synthesis, six key impacts were identified for further analysis. The Decision-Making Trial and Evaluation Laboratory (DEMATEL) technique was used to examine the causal relationships between the impacts based on the pairwise rankings of 15 construction professionals in the construction industry. The findings suggest that a shortage of skilled labor (A), insufficient supplies and material delays (E), and project deceleration (D) emerged as the most critical impacts. The study proposes several strategies to mitigate these critical impacts, aiming to assist key stakeholders in both the government and construction sectors in developing effective interventions to address the consequences of lockdown and work disruption during a severe pandemic.
Factors Influencing Student Intentions in Using the Mobile Legends Bang-Bang Game Using the UTAUT 2 and DeLone McLean Models
Authors: Nelly Fredy Kusuma , Prasetiyo Budi
Published: June 2024

Online game users have increased every year following technological developments. This makes game developers develop their products even better so that they can play games on smartphones or commonly called mobile games. The increasing number of mobile game users is the backdrop for intense competition between game genres. However, one of the most frequently accessed games is Mobile Legends Bang-Bang. Then make the Mobile Legends game popular with various groups of students. Seeing this phenomenon, researchers are interested in researching Semarang State University students who play the online game Mobile Legend Bang-Bang because on campus there are many students who play together and form teams so that many E-Sport competitions are held. The UTAUT 2 and Delone & Mclean methods determine the factors that influence students' intentions to play the Mobile Legends Bang-Bang game. The data source in this study was taken from the results of online questionnaires so as to produce 316 respondent data after the screening process was carried out. Data processing uses SmartPLS V3 to test the outer and inner models. The results of this study indicate that of the ten hypotheses proposed, four hypotheses are not accepted. Namely, social influences on behavioral intentions, habits on behavioral intentions, system quality on behavioral intentions, and service quality on behavioral intentions. This means that social influence, habits, system quality, and service quality have no significant effect on behavioral intentions. The results of the analysis show that user intentions influence user behavioral in using the Mobile Legends Bang-Bang game.
Analysis and Quality Measurement of SITEDI Sub-System Against User Satisfaction Using WebQual 4.0 and End-User Computing Satisfaction (EUCS) Methods
Authors: Prasetya Ananda , Efrilianda Devi Ajeng
Published: June 2024

One of the efforts in handling educational challenges in the era of technological development is the development of the Thesis Information System for Dissertation Thesis (SITEDI). SITEDI is an information system that facilitates the thesis administration process starting from the presentation of the subject matter to the final exam managed by Universitas Negeri Semarang (UNNES). Therefore, it is necessary to measure the quality of SITEDI performance based on user satisfaction to facilitate the evaluation process of SITEDI as a quality student service in the future. The research method used in this study is a combination of WebQual 4.0 and End-User Computing Satisfaction (EUCS). The variables used include usability quality, information quality, service interaction quality, format, and timeliness. The sample used was 135 respondents with purposive sampling technique. The results of the analysis that have been carried out conclude that simultaneously the variables of usability quality, information quality, service interaction quality, format, and timeliness have an influence on user satisfaction by 62.5%. WebQual 4.0 variables, namely service interaction quality, information quality, and usability quality sequentially have a significant influence on user satisfaction with an effect size of 0.092, 0.069, and 0.028. Meanwhile, the EUCS variables, namely format and timeliness, do not have a significant influence on user satisfaction.
Estimación del tipo de cambio en Colombia comparando modelos econométricos Arimax-Garch y redes neuronales
Authors: Rojas Rivera Leonardo
Published: June 2024

El presente trabajo de investigación propone comparar modelos econométricos como la combinación de modelos Arimax-Garch contra redes neuronales, con el objetivo de encontrar un mejor predictor de la tasa representativa del mercado en Colombia (trm); los resultados del ejercicio evidencian que con la combinación del modelo Arimax-Garch para la proyección y el análisis de una variable tan volátil, se obtiene una mejor estimación que con la implementación de la redes neuronales.
trabajo político de las emociones
Authors: Márquez Porras Raúl , Bofill-Poch Sílvia
Published: June 2024

El artículo analiza la forma como la pandemia impactó el sistema de cuidados en España. Toma como elemento central de análisis la crisis del modelo residencial que la pandemia evidenció y lo hace desde la perspectiva de los familiares. La pandemia tuvo un impacto importante en las residencias, con uno de los índices de mortalidad más elevados de la Unión Europea. Ello provocó sufrimiento, no solo en los residentes, sino también en los familiares, quienes reaccionaron movilizándose y exigiendo responsabilidades por lo acontecido. En línea con la antropología de las emociones, se trata de analizar las gramáticas emocionales que subyacen a la protesta, para mostrar cómo el sufrimiento de los familiares se torna inteligible en el marco de un modelo de atención residencial en crisis, y como adquiere valor político más allá del ámbito privado e individual en el que suele pensarse el cuidado.
Fouling invertebrates from PVC plates at Chahué Marina, Oaxaca, Southern Pacific coast of Mexico
Authors: Ramos-Morales Axl , Gómez-Vásquez Julio D. , García-Madrigal María del Socorro , Bastida-Zavala J. Rolando
Published: June 2024

The port fouling fauna from Mexico has recieved greater study in the last 15 years. By improving our knowledge of fouling invertebrates on artiﬁcial substrates on the Southern Paciﬁc coast of Mexico, we can better understand their distribution and prevent bioinvasions. The specimens listed in this present study come from PVC plates that were placed between June 2019 to June 2020 submerged at 1 m depth, on four docks of the Chahué Marina, Oaxaca, Mexico. Forty-four taxa, representing nine phyla were identi-ﬁed: Sipuncula (1 species), Entoprocta (1), Bryozoa (3), Arthropoda (3), Porifera (4), Cnidaria (5), Chordata (6), Mollusca (10) and Annelida (11). Thirty taxa were identiﬁed to species, with two still requiring conﬁrmation. Five were identiﬁed to genus, two to family, and ﬁve to class level. From the 30 identiﬁed species, 18 were non-native species: one entoproct, one mollusk, two bryozoans, three hydrozoans, three barnacles, four polychaetes, and four ascidians. These results include seven new records from the state of Oaxaca: one entoproct, one barnacle, two bryozoans, and three hydrozoans.
Apresentação do Dossiê Relações de religião e gênero no contexto da pandemia: desafios e sensibilidades de uma conjuntura complexa
Authors: De Franco Clarissa , Pinezi Ana Keila Mosca
Published: June 2024

Saudamos as leitoras e leitores da Revista Mandrágora. Com muita alegria apresentamos este dossiê: Relações de religião e gênero no contexto da pandemia: desafios e sensibilidades de uma conjuntura complexa, organizado por nós, as pesquisadoras doutoras Clarissa De Franco – professora da Universidade Metodista de São Paulo – e Ana Keila Mosca Pinezi – professora da Universidade Federal do Triângulo Mineiro (UFTM).
A luta pelo reconhecimento da ordenação pastoral feminina nas Assembleias de Deus no Norte do Brasil: desafios e conquistas
Authors: Correa Marina Aparecida Oliveira dos Santos
Published: June 2024

Este artigo tem como objetivo abordar a relação religiosa entre homens e mulheres nos Ministérios das Igrejas Assembleias de Deus (AD) de Manaus e Belém. No ano de 2017, a Faculdade Boas Novas (AM), realizou o II Congresso Norte de Teologia e o 4º Encontro Nacional da Rede Latino-americana de Estudos Pentecostais (RELEP). O evento, realizado na sede das AD manauaras, serviu de motivação para que as mulheres assembleianas apresentassem suas reivindicações. Um grupo de mulheres das AD de Manaus, composto por professoras, diretoras e administradoras da Faculdade Boas Novas (AM), após participar de um painel de debates sobre as questões femininas, fez uma reivindicação por meio de uma Carta Proclamação. As mulheres apresentaram argumentos contundentes sobre a oficialização da vocação pastoral feminina, não por status, mas, segundo a Carta Proclamação, “pela evidência do chamado espiritual concedido por Deus a homens e mulheres” (Maria José Costa LIMA; Eunice de Oliveira RIOS; Andréa Nogueira Gomes dos SANTOS; Elaine Christine Santiago Vieira GUIMARÃES; Raymunda Mota dos SANTOS; Gideane Moraes de SOUZA; Fatima Medianeira Flores de VARGAS; Saara Vieira de Souza BASTOS, 2017, p. 228). Para tanto, o presente artigo está dividido em duas partes: no primeiro momento, é apresentada a configuração e a reconfiguração do campo religioso assembleiano no que tange à participação das mulheres em suas igrejas; no segundo momento, aborda a ordenação de mulheres ao cargo de pastoras no Ministério de Manaus. A metodologia empregada neste artigo envolveu uma combinação de pesquisa descritiva e bibliográfica, realizada no Ministério da Assembleia de Deus em Manaus, Amazonas. A abordagem utilizada para a análise dos dados foi a qualitativa.
Analisis Kritis Sains Modern Menggunakan Filsafat Khudi Muhammad Iqbal
Authors: Hidayat Alfan Fatkhi
Published: June 2024

Science is one of the important things in efforts to approach and get to know existing objects, so it requires a correct basis for self-awareness such as understanding khudi. Because, the direction of modernity with the spirit of the developing Western Renaissance makes Modern Science behave fragmentatively. So that the physical dimension is separated from the metaphysical dimension which requires values and morals. So, this research seeks to analyze certain aspects and sides of modern science, to then be criticized with the perspective of Khudi Muhammad Iqbal. This research is library research using a philosophical approach in critical analysis on data. The results of this research state that Khudi Muhammad Iqbal has a comprehensive-integral influence on a person in terms of his awareness. So, it brings universality, wise considerations, and the relevance of good life from a philosophical basis, especially for scientific trends in this era which are used as references for modern life.
Exposición laboral a plaguicidas y la salud en agricultores Ciénega, Jalisco, México
Authors: Torres Sánchez Erandis Dheni , Flores Gutiérrez Carlos Alfonso , Torres Jasso Juan Heriberto , Reyes Uribe Emmanuel , Salazar Flores Joel
Published: June 2024

Los agricultores tienen mayor vulnerabilidad de intoxicación por plaguicidas. La Ciénega, Jalisco tiene alta productividad agrícola y elevado uso de plaguicidas. Sin embargo, no hay estudios previos que evalúan los efectos en la salud de agricultores. El objetivo de este estudio fue describir las consecuencias de la exposición laboral a plaguicidas en la salud de agricultores de la Ciénega de Jalisco. Se aplicaron 121 encuestas a agricultores con exposición crónica (2019 a 2022) sobre incidentes en el uso de plaguicidas. La encuesta consta de 64 ítems tipo cualitativas dicotómicas y se validó mediante el coeficiente alfa de Cronbach, con valor de 0.6880. Los síntomas más frecuentes fueron mareos (66.7 y 36.9 %) y dolor de cabeza (58.3 y 48.8 %). Las enfermedades más frecuentes fueron hipercolesterolemia (34.3 y 26.7 %), hipertensión (31.4 y 36 %) y Diabetes Mellitus tipo 2 (22.9 y 14.7 %). El 92.08 % de los agricultores presentaron niveles de glucosa inferiores a 200 mg/dL. El 63.89 % de los participantes consumieron alimentos durante la aplicación de plaguicidas. Se encontró asociación de mareos (p = 0.027) y ardor en piel (p = 0.003) con el género lo cual indica que el sexo puede ser una condición relacionada con los síntomas de intoxicación a plaguicidas.
El sistema inmune y su interminable batalla contra las células tumorales: reconocimiento, eliminación y evasión de la respuesta inmune
Authors: Güitrón Aviña Marcela Sofia , Ortiz Lazareno Pablo Cesar , Solorzano Ibarra Fabiola
Published: June 2024

El cáncer es una de las principales causas de muerte en el mundo, por ello las investigaciones actuales se centran en evaluar los mecanismos implicados en el desarrollo de esta enfermedad. A lo largo de los años se ha demostrado que la respuesta inmune (tanto innata como adaptativa) juega un papel fundamental en la identificación y eliminación de células tumorales. Sin embargo, los tumores pueden evadir el reconocimiento inmunológico y seguir proliferando. En este artículo explicamos aspectos actuales sobre los mecanismos que utiliza el sistema inmune para eliminar las células tumorales, también hacemos una revisión de los mecanismos que utiliza el tumor para evadir la respuesta inmune.
Aktif Öğrenme Süreçlerine Yönelik Lisans ve Yüksek Lisans Öğrencilerinin Görüşleri: Bir İçerik Analizi
Authors: Korucuk Murat
Published: June 2024

Bu çalışmada üniversite öğrencilerinin aktif öğrenmeye yönelik görüşlerinin belirlenmesi amaçlanmıştır. Çalışmada nitel araştırma desenlerinden olan olgubilim yönteminden yararlanılmıştır. Çalışmanın katılımcıları Türkiye’nin doğusunda yer alan bir devlet üniversitesinde öğrenim gören 10 öğrenciden oluşmaktadır. Katılımcıların belirlenmesinde kolayda (uygun) örnekleme yönteminden yararlanılmıştır. Bu aşamada çeşitliliğin sağlanabilmesi amacıyla öğrencilerin yükseköğretim seviyeleri (lisans ve lisansüstü) dikkate alınmıştır. Bu sebeple katılımcıların 5’i lisans ve 5’i lisansüstü seviyedeki 10 öğrenciden oluşmaktadır. Çalışma verilerine araştırmacı tarafından geliştirilen “Aktif Öğrenme Odaklı Yarı Yapılandırılmış Görüşme Formu” kullanılarak ulaşılmıştır. Çalışma bulguların sunumunda anlaşılırlığın desteklenebilmesi amacıyla tablolardan, doğrudan alıntılardan ve şekillerden yararlanılmıştır. Çalışmanın geçerliği ve güvenirliğinin sağlanabilmesi amacıyla gerekli önlemler alınmış ve elde edilen verilere içerik analizi uygulanmıştır. Sonuç olarak bu çalışmada öğrencilerin aktif öğrenmeye yönelik görüşlerinin 3 tema, 5 alt tema ve 59 kod altında toplandığı belirlenmiştir. Tema, alt tema ve kodlar değerlendirildiğinde; öğrencilerin aktif öğrenme ile yeteri kadar karşılaşmadıkları, özellikle ilkokul ve ortaokulda aktif öğrenmenin daha az uygulandığı ve öğretmenlerin daha aktif olduğu, öğrencilerin en çok karşılaştıkları aktif öğrenme süreçlerinin uygulama faaliyetleri ile gösterip yaptırma olduğu sonucuna ulaşılmıştır. Öğrencilerin aktif olarak öğrenme süreçlerine katılabilmeleri için çeşitli beklentileri olduğu ve bu beklentilerin başında demokratik, eğlenceli, özgür ve uygulamaya dayalı bir öğretim ortamının yaratılması, bireysel farklılıklara önem verilmesi, okul dışı etkinliklerin eğitim programlarında yer alması gerektiği ve öğretmen-öğrenci etkileşiminin sağlanmasının geldiği anlaşılmıştır. Bunun yanında öğrencilerin aktif öğrenme bağlamında öğretmenlerinden, okullarından ve ailelerinden çeşitli beklentileri olduğu görülmüştür. Çalışmada öğrencilerin aktif öğrenme süreçlerine katılımlarının desteklenebilmesi ve bu konudaki beklentilerinin karşılanarak öğrenme süreçlerinin daha etkili hale getirilebilmesi için araştırma sonuçları doğrultusunda birtakım öneriler geliştirilmiştir.
VALIDADE PSICOMÉTRICA DA ESCALA DE COMPETÊNCIAS DE LIDERANÇA PARA ENSINO SUPERIOR PÚBLICO
Authors: Rosa Dieyson Tobias da , Teston Sayonara de Fátima , Zawadzki Patrick
Published: June 2024

O líder exerce uma função desafiadora nas organizações públicas. O contexto demanda dos líderes algumas competências para que eles possam desempenhar seu papel de forma efetiva e possam contribuir ao alcance dos objetivos institucionais, porém, ainda não há instrumentos de mensuração que atendam esse contexto. Assim, esta pesquisa teve como objetivo criar e verificar a validade psicométrica de um instrumento de mensuração das competências de liderança para instituições de ensino federais. Para atingir este objetivo, o estudo de paradigma funcionalista, caráter exploratório e descritivo, com abordagem quantitativa, adotou pesquisa de levantamento (survey). A partir da aprovação do projeto pelo Comitê de Ética em Pesquisa, o questionário eletrônico elaborado foi divulgado aos 1.387 servidores efetivos e ativos de uma Instituição Federal de Ensino Superior. A amostra final foi composta por 314 respondentes. A análise dos dados ocorreu por meio da estatística descritiva, da Análise Fatorial Exploratória (AFE) e da Análise Fatorial Confirmatória (AFC). A AFC validou um modelo com 06 fatores, cada competência mensurada originou 03 fatores: um relativo às variáveis de conhecimento; outro das habilidades; e, um fator das atitudes. Além disso, a AFC confirmou os três elementos básicos da competência trazidos pela teoria. As AFE’s, por sua vez, indicaram a independência entre as duas competências, demonstrada de forma clara pela separação dos fatores. O estudo é relevante pois apresenta o processo de criação e as propriedades psicométricas de uma escala de mensuração de competências de liderança para o ensino superior público.
RESEARCH OF TRIANGULAR BAFFLE PLACEMENT EFFECT ON THE HEAT TRANSFER AND FLOW FEATURES IN CROSS-CIRCULAR GROOVED TRIANGULAR CHANNELS
Authors: Alnak Yeliz
Published: June 2024

In this study, heat transfer performance and fluid flow properties for cross-circular grooved triangular ducts having different location angles and heights of the triangular baffles are studied numerically. The ANSYS Fluent program is applied to solve the equations of energy and the Navier-Stokes equations by employing the k-ε turbulence model in computational calculations. While the inlet temperature of the working fluid (air) is 293 K, the surface temperature of the lower circular grooved channels is taken constant at 373 K. Triangular baffles have different angles of 30°, 60°, and 90° and heights of 0.25H, 0.5H, and 0.75H. The range of the Reynolds number (Re) employed in this study is 1000-6000. Numerical results agreed with a 3.53% deviation according to empirical work that existed in the literature. The attained outcomes are presented as mean Nusselt number (Num), fluid temperature, turbulence kinetic energy, pressure, and performance evaluation criterion (PEC) variations for each triangular baffle angle and height. Contour distributions of the temperature, velocity, turbulence kinetic energy, and velocity vector are also evaluated for distinct Re numbers and triangular baffle arrangements. For Re = 3000, the Num number in the channel with a 90° baffle angle and 0.75H baffle height is 136.73% higher than that in the channel with 0.25H baffle height. In the channel with 0.25H baffle height, the PEC value is 91.91% higher in the 30° baffle angle condition than in the 90° one.
Grain boundary migration and mechanical properties altering in Fe – 10Ni – 20Cr alloy under irradiation
Authors: Kryzhevich D. S. , Korchuganov A. V. , Zolnikov K. P.
Published: June 2024

Mechanisms of ∑5(210)[001] and ∑5(310)[001] symmetrical tilled grain boundaries migration in bicrystall Fe – 10Ni – 20Cr samples under irradiation were investigated by means of molecular dynamics. The density of radiation defects grows quite quickly up to a dose of ~0.02 dpa and then reaches saturation. This is due to balancing of the radiation defects generation and annihilation rates. It is shown that at the early stage of irradiation, grain boundaries began to deviate stochastically from their initial positions due to interaction with cascades of atomic displacements and absorption of structural defects. During irradiation, the grain boundary region thickened and became rough. With an increase in the radiation dose, size of the clusters of point defects (tetrahedrons of stacking faults and dislocation loops) increased. Interaction with large clusters of point defects led to the formation of bends on initially flat surfaces of grain boundaries. At small distances between the boundaries, the high driving force between the curved surfaces of grain boundaries significantly increased the rates of their approach. The average migration rates of grain boundaries before their direct interaction with each other were approximately 0.8 m/s. As a result of their approach, the grain boundaries were annihilated, the potential energy of the sample decreased abruptly, and the grains merged. The annihilation of grain boundaries ∑5(310)[001] required twice the radiation dose compared to the grain boundary ∑5(210)[001]. The direct interaction of grain boundaries with each other abruptly increased the velocity of their migration due to the emergence of a driving force from the curved sections of the grain boundary surfaces. Influence of the radiation dose on deformation behavior features of the samples under uniaxial strains was studied. With an increase in the radiation dose, the elastic limit decreased rapidly and reached saturation at an irradiation dose of ~0.01 dpa.
Problems of selection of corrosion-resistant steels and alloys in oil and gas industry for operating conditions
Authors: Fedorov A. S. , Karasev V. S. , Alekseeva E. L. , Al’khimenko A. A. , Shaposhnikov N. O.
Published: June 2024

Corrosion-resistant steels and alloys have a number of unique properties. This allows them to be used in various industries. Despite their name, they are to some extent subject to various types of corrosion and corrosion-mechanical damage. This article discusses cases of corrosion damage of products made of corrosion-resistant steels and alloys in the oil and gas industry. The reasons of material failure can be incorrect exploitation of material, low-quality material of products, and incorrect selection of material for operating conditions. For each group of failure causes the examples from open sources and from the practice of the team of authors of this work are considered. The paper substantiates the importance of preliminary laboratory studies of corrosion-resistant materials and their testing with simulation of environmental factors. It is necessary for reasonable choice under specific operating conditions. It is shown that in practice the reasonable choice of corrosion-resistant materials is not always given due attention, so the seemingly economically favorable solutions may turn out to be incorrect. The main focus is made on the practical side of the issue in order to avoid such problems in the future. The relevance of the work is confirmed by the recent acute problem of substitution of foreign steel grades.
Physical and chemical processes during nitriding of chromium ferrosilicon by filtration combustion
Authors: Bolgaru K. A. , Reger A. A. , Vereshchagin V. I. , Akulinkin A. A.
Published: June 2024

In this paper, the nitriding of chromium ferrosilicon is carried out in the combustion mode under the condition of natural nitrogen filtration. The authors studied the effect of the key parameters (pressure of gaseous nitrogen, diameter and dispersity of starting samples) on the maximum temperature and combustion of the starting powder mixture based on chromium ferrosilicon. The combustion synthesis of chromium ferrosilicon proceeds steadily in the stationary mode with formation of a macrohomogeneous nitrided composition which, according to the results of X-ray phase analysis, contains two nitride phases - chromium nitride and silicon nitride. Interaction of the initial powder with gaseous nitrogen in the filtration combustion mode proceeds by the following probable chemical reaction: 3CrSi2 + 3Si + 3FeSi2 + 11.5N2 = 3CrN + 5Si3N4 + 3Fe. Increasing the diameter of the starting samples slightly affects the amount of absorbed nitrogen and slows the propagation of the combustion wave front. An increase in the pressure of gaseous nitrogen increases the amount of absorbed nitrogen and the combustion rate. Increasing the dispersity of the starting powder increases the amount of absorbed nitrogen and the combustion rate. It was found that the combustion reaction is not possible with a dense initial sample. The maximum combustion temperature, depending on the nitriding conditions, varies between 2400 and 2650 °C and increases with increasing gaseous nitrogen pressure, diameter of the initial samples and dispersion of chromium ferrosilicon powder. It is possible to realise nitriding of chrome ferrosilicon in the combustion mode at the pressure of gaseous nitrogen not less than 3 MPa, diameter of initial samples not less than 3.5 cm and size of initial particles not more than 100 μm. Optimal parameters of nitriding are gaseous nitrogen pressure of 5 MPa, diameter of samples 5 cm, size of initial particles less than 100 μm and bulk density of samples (2.23 g/cm3).
Determination of longitudinal stability of strip in rolling cage – non-drive dividing device system
Authors: Fastykovskii A. R. , Vakhrolomeev V. A. , Nikitin A. G.
Published: June 2024

In modern industrial and civil construction, various rolled metal products are used in greater volumes. The largest share of them is occupied by rebar profiles produced at small-grade mills. The ever-growing demand for rebar rolling requires an increase in production volumes. The most promising technology in this regard is rolling – separation, which, with relatively low material costs, allows operating rolling mills to significantly increase the production volume of rebar profiles while reducing energy consumption. However, despite the obvious advantages of rolling – separation technology using non-drive dividing devices, it is very difficult to correctly determine the rational modes of conducting the process taking into account the peculiarities of production and equipment layout, which is due to insufficient theoretical knowledge. One of the main problems is determination of the permissible distance in the rolling cage – non-drive dividing device system. The conducted studies allowed us to propose a dependence for determining the maximum permissible distance in the rolling cage – non-drive dividing device system for reasons of longitudinal stability of the strip, taking into account the size and shape of cross-section of the split articulated profile, the nature of pinching, and the backstretch stress. It was experimentally established that when determining the permissible distance between rolling cage and non-drive dividing device, it is advisable to take the length reduction coefficient equal to 0.7.
Regionalización de la provincia del Desierto Chihuahuense con base en la distribución de especies de Dalea (Fabaceae)
Authors: Sandoval-Mata Tecoatlayopeuh Nelly , Hernández-Sandoval Luis , Munguía-Lino Guadalupe , Steinmann Víctor W. , Delgado-Salinas Alfonso
Published: June 2024

Background: Dalea is endemic to the Americas and has a wide distribution in the Chihuahuan Desert province, its species are associated with xeric scrub, oak forest, and coniferous forest.
Hypothesis: Dalea species function as a surrogate of the flora and reinforce the regionalization proposals for this province.
Study site and research period: Chihuahuan Desert province, August 2020 to July 2022.
Methods: A database was generated from herbarium specimens. The species richness analysis was obtained using a 1 × 1° grid. Weighted endemism (WE) and corrected weighted endemism (CWE) were analyzed and estimated. For regionalization, species replacement was calculated and the UPGMA grouping method was applied. The resulting groups were checked against the published ecoregions to determine the biotic components of the environmental characterization.
Results: 3,061 records were obtained, representing 77 species, of which 33 are endemics to the study area. The northwestern and southeastern parts of the province had the highest species richness. The central and northern parts had the highest endemic species richness. The WE analysis showed three cells located in the center of the study area, while the CWE recovered three cells at the south of the province. Two large main subprovinces are recognized, these nesting smaller area groups (districts). The districts mostly correspond to the ecoregions of the Chihuahuan Desert, Scrub of the Central Plateau, and Dry forests of the Bajío.
Conclusions: Dalea was a surrogate for the flora and reinforced the regionalization proposals for this province.
A sajtótörténeti különszám elé
Authors: Klestenitz Tibor
Published: June 2024

A Magyar Könyvszemle a 2014. évi 4. és 2015. évi 1. számai után ismét sajtótörténeti különkiadással jelentkezik. Az itt közreadott anyag a Sajtó és nyilvánosság a hosszú 19. században című tudományos konferencia előadásain alapul, amely az MTA Művelődéstörténeti Osztályközi Állandó Bizottságának Sajtótörténeti Munkabizottsága, valamint az MTA–OSZK Res Libraria Hungariae Kutatócsoport ELKH 19. századi Könyv- és Sajtótörténeti Műhelye – jelenlegi nevén OSZK Lipták Dorottya Sajtótörténeti Kutatócsoport – közös szervezésében, a nemzeti könyvtárban zajlott le 2022. június 3-án. Az esemény már a második eleme volt a kutatócsoport által 2019-ben, hagyományteremtő céllal megkezdett emlékkonferencia-sorozatnak a műhely egy esztendővel korábban elhunyt vezetője, Lipták Dorottya tiszteletére. A tudományos seregszemlén, ahol doktori tanulmányokat folytató és már tapasztalt kutatók egyaránt részt vettek, nyolc szekcióban összesen huszonkét előadás hangzott el (egy könyvbemutató kerekasztal-beszélgetés mellett).
Toward Consumption-Based GHG Emissions Accounting: From Calculation to Policy-Making
Authors: Makarov Igor , Sedat Alatash
Published: June 2024

In national carbon emissions reduction targets as well as within the international climate change regime, production-based (or territorial) emissions are taken into account. Such accounting imposes the major responsibility for emissions on leading emerging economies where most of the carbon-intensive industries are allocated. It also provokes carbon leakage: stringent climate policies in one jurisdiction may lead to the reallocation of production and corresponding emissions to others where companies bear lower regulation costs. Consequently, asymmetry occurs. While most developed countries are gradually reducing their emissions, emissions are simultaneously growing in emerging economies, with no significant progress in the mitigation of global climate change. This article directs attention to an alternative way of emissions accounting—based on consumption. In this regard, emissions are attributed to the particular economy if they are embodied in goods consumed there, regardless of where exactly these emissions are generated. This type of accounting supposes that emissions of major emerging economies are not their own choice but also the reflection of the international division of labour and the result of demand for carbon-intensive goods coming from major centres of consumption in developed countries. Regular calculation and disclosure of consumption-based emissions (along with production-based ones) and their gradual integration into the process of emissions reduction target-setting would provide a new perspective on sharing responsibility for emissions, prevent carbon leakage and clearly demonstrate the need for international climate cooperation between exporters and importers of carbon-intensive goods, expand the scope of emissions under regulation, and give opportunities to countries to use the wider range of decarbonization tools. The latter would include those that involve the population in mitigation efforts and better link the price for carbon with the level of household consumption, which is important for coping with carbon inequality and promoting climate justice.