bluuebunny/crossref_metadata_2025 huggingface dataset:
O teste TOEFL-ITP dentro do Programa Ciências Sem Fronteiras
Authors: Marcuzzo Patricia , Azambuja Francine
Published: August 2024

Este trabalho analisa o teste TOEFL versão ITP dentro do programa Ciências sem Fronteiras (CsF) a fim de identificar em que medida e como este testa a proficiência em língua inglesa dos candidatos ao programa CsF. O teste foi analisado em termos de estrutura, seções, subseções, tempo de duração e número de questões. Além disso, foram identificadas as competências exploradas, os textos e os gêneros abordados nessa versão do TOEFL. Este trabalho pode fornecer subsídios para professores de língua inglesa que preparam estudantes para prestar esse teste.
O direito à literatura
Authors: Teixeira Pedrosa Zanon Andressa , Crispoim França Luquetti Eliana
Published: August 2024

O presente artigo, de cunho bibliográfico, tem como objetivo analisar os documentos oficiais da educação que tratam da Literatura no Ensino Médio, mais especificamente os PCNEM, PCN+ e OCN, para entender como esse conteúdo vem sendo exposto, além de investigar as filiações teóricas e intencionalidades dos documentos. Sabemos que o ensino de Literatura não vem sendo eficaz nas escolas brasileiras, o que resulta em uma formação ineficiente dos jovens, com relação à leitura. Diante disso, é fundamental compreender a importância desse conteúdo para a plena formação dos discentes e tentar encontrar caminhos possíveis para a condução mais efetiva do ensino de Literatura na Educação Básica. Para esse fim, investigamos autores que tratam da relevância do texto literário para a plena formação cidadã, como Candido (2011), Orlandi (1999), Cosson (2006), dentre outros. Assim, investigamos os documentos acima citados e percebemos que os mesmos ainda não são satisfatórios na proposição de um caminho eficiente para o ensino de Literatura na escola.
Enfermedades cardiovasculares y mortalidad hospitalaria por COVID-19 en establecimientos de salud del departamento de Cajamarca, año 2020
Authors: Ninatanta-Ortiz Juana Aurelia , García-Flores Segunda Aydeé , Díaz Rivadeneira Insolina Raquel , Vega Torres Elena , Pérez Cieza Katia Maribel , Palacios Sánchez Sara Elizabeth , Angulo-Bazán Yolanda
Published: August 2024

Introduction. Cardiovascular diseases are one of the most frequently reported comorbidities in COVID-19 cases. Objective. To evaluate the relationship between the presence of cardiovascular risk diseases and death from COVID-19 in a cohort of hospitalized patients in the Cajamarca Region, during the year 2020. Methods. Retrospective cohort of 576 patients hospitalized for COVID-19 between July and December 2020, from four hospitals in the Cajamarca Region. A survival analysis was carried out using Cox regression to establish the relationship between death from COVID-19 and the presence of arterial hypertension (HTA), type 2 diabetes, obesity, and multimorbidity, using models adjusted for sociodemographic and clinical factors seeking to identify possible effect modifying variables. Results. The mortality from COVID-19 was 45.1%. In the bivariate analysis, the history of HTA was the only cardiovascular disease that was related to a higher probability of death from COVID-19 (HR: 1.43; 95% CI: 1.12-1.85). Two subgroup evaluations were developed:a) by age group and b) by oxygen saturation on admission (SatO2). An association was found between death from COVID-19 and DM2 in those under 60 years of age (HR: 4.56; 95% CI: 2.32-8.95); as well as with HTA in patients with SatO2 less than 80% on admission (HR: 1.67; 95% CI: 1.04-2.69). Conclusion. A relationship was found between death from COVID-19 and cardiovascular diseases such as HTA or type 2 diabetes, in specific subgroups (patients with SatO2 less than 80% on admission or age less than 60 years respectively) of patients who were hospitalized in health establishments of the Cajamarca Region.
Preparation of public school teachers for teaching church singing in short-term courses in the late 19th – early 20th centuries (with A. N. Karasev’s courses as an example)
Authors: Donskaya Maria
Published: August 2024

The article is devoted to the professional, pedagogical and methodological aspects of teacher training for teaching church singing in short-term courses at the end of the XIX – beginning of the XX century. The prerequisites for the emergence of courses, their characteristic features and features are briefly considered. As an example of courses that successfully solved the task of training musical and pedagogical personnel for public schools, the courses under the guidance of A.N.Karasev, a national teacher, regent, author of educational and methodological manuals were chosen. In 1887, he conducted the first church singing courses for teachers in Kiev. After this first successful experience, the courses quickly spread to many regions of the Russian Empire. A.N.Karasev regularly conducted courses for teachers until 1913. He created his own training system at the courses, a significant place in which was devoted to the method of singing. Methodical training was carried out not only within the framework of the educational subject "Singing technique", but also included other components. The article characterizes these components, analyzes the course program and their content, provides information from archival documents and pre-revolutionary periodicals indicating the success of teacher training in teaching singing. This historical experience may have practical significance for the improvement of modern church singing education.
The Information of Public Sciences: Definitions
Authors: Zaveckienė Žiedonė
Published: August 2024

Many different conceptions are noticed in defining information: mathematical, cybernetic, philosophical, philological, and bibliographical directions. There are quantitative and qualitative definitions, ranging from very complicated to more or less simple, and very close to the primary one.
The information of public sciences is very closely connected with information in general and especially with the information of social sciences, journalism, and bibliography.
There is no consensus in defining social phenomena in general, which interferes with fixing the place of the information of public sciences. One can consider public and political information as synonyms for social information and define it as information on phenomena, facts, and documents of a social character. The information of public sciences can be defined as the information received in the process of cognition, including all the regularities, phenomena, facts, and also the documents of the public sphere.
The structure and concept of the theory of bibliography
Authors: Janonis Osvaldas
Published: August 2024

M. Briskman's, E. Bespalova's, O. Korshunov's, and L. Lelikova's viewpoints on the concept of the theory of bibliography are examined. The theory of bibliography should be more strictly differentiated from other kinds of scientific information. The author considers the theory of bibliography to be the highest level of scientific information. O. Korshunov's general theory of bibliography meets this requirement. The article discusses the structure of the theory of bibliography and their interrelations.
Creation of problem-oriented data bases
Authors: Atkočiūnienė Zenona , Broniukaitis Romualdas
Published: August 2024

Program objective method is currently employed for planning the directions of overall industrial intensification and introduction of scientific and technical achievements into practice. Objective complex programs demand respective reorganization of information activities. The fundamentally new approach to data organization lies in the creation of data banks (DB) representing problem-oriented systems for collective use. The accomplished analysis of practice in creation of oriented DB shows that at present there are possibilities to create DB resting upon information resources either provided or generated on the spot, as well as on information and technological, linguistic, program, and technical supply arranged by the Republican automatic system and technical information.
The bibliographical method
Authors: Janonis Osvaldas
Published: August 2024

In this article, the discussion with M. G. Vochryševa about the bibliographical method and its co-scientific status is investigated. The author thinks that the given arguments are weak and erroneous. The creation of special scientific bibliographical methods is the task of the future. The perspectives for this are opened by the developing general theory of bibliography.
Reestablishment of public stale libraries in the postwar Lithuania
Authors: Sinkevičius Klemensas
Published: August 2024

Before the Hitler occupation in Soviet Lithuania, there were no less than 263 working public state libraries, and preparations for the establishment of 92 additional libraries were underway. After the liberation of Soviet Lithuania, 60 libraries remained, nearly destroyed. Reconstruction and establishment work were carried out in three directions: reconstructing libraries that had been destroyed by the Hitler occupation forces, establishing libraries that had been planned before the war, and building new ones that had not been planned earlier. By the end of 1949, all the prewar libraries and those planned to be built had been reestablished and founded, except for 19, the construction of which was postponed for a later time. Additionally, more than 70 new state public libraries were founded.
Bücher über mathematische und astronomische Literatur aus dem 17. Jahrhundert in den Beständen der Bibliothek der Universität Vilnius
Authors: Matulaitytė Stasė
Published: August 2024

Zu den Beständen der Abteilung der alten und seltenen Bücher der Universität Vilnius gehören einige Sammlungen, deren Hauptbestand nach Jahrhunderten gegliedert ist (15., 16., 17. und 18. Jh.), darunter der Buchbestand der alten Universitätsbibliothek (etwa 18.000 Stück), die Bibliothek der Vilniusser Medizingesellschaft (etwa 23.000) u.a. In der Abteilung gibt es einen Kartographiesektor, dessen Atlanten- und Kartensammlung eine der umfangreichsten in der Sowjetunion ist.
Im Artikel werden Ausgaben über Mathematik und Astronomie behandelt, die zu Sammlungen aus dem 17. Jh. gehören. Hier gibt es etwa 20.000 Ausgaben verschiedener Themen, deren größten Teil religiöse und philosophische Literatur ausmacht, aber auch über 300 naturwissenschaftliche Werke u.a. Ein Drittel der naturwissenschaftlichen Ausgaben besteht aus Büchern über Mathematik und Astronomie.
Der Buchbestand aus dem 17. Jh. wurde zu verschiedenen Zeiten und auf unterschiedlichen Wegen zusammengestellt. Seine Grundlage bildeten die Bücher der ehemaligen Vilniusser Öffentlichen Bibliothek. Hierher gelangten Bücher aus den nach dem Aufstand 1863 beschlagnahmten Gut-, Schul-, Kirchen- und Klosterbibliotheken. Von dem ehemaligen Buchbesitzer zeugen verschiedene Aufschriften, Exlibris, Siegel u.a. Zeichen, auf deren Bestehen nach der bibliographischen Beschreibung der Bücher hingewiesen wird.
Im Buchbestand befinden sich Bücher, die in verschiedenen Ländern - England, Frankreich, Deutschland, den Niederlanden u.a., auch in der Druckerei der Universität Vilnius - herausgegeben wurden. Es gibt Werke von Descartes, Gassendi und anderen berühmten Gelehrten sowie Ausgaben von hiesigen Autoren. Sie gewähren einen Einblick in den Bestand der Bibliotheken des Litauens aus jener Zeit.
Prominente Bibliothekare an der Universität Vilnius (1570-1939)
Authors: Feigelmanas Nojus
Published: August 2024

In dem Artikel wird eine Übersicht über die prominenten Bibliothekare der Universität Vilnius gegeben, von der Zeit des Vilniusser Jesuitenkollegiums bis zur Zeit der Stefan-Batory-Universität (1570-1939). Es werden sowohl ihre Verdienste bei der Einrichtung als auch ihr Beitrag zur Entwicklung des Bibliothekswesens und der Bibliographie der Wissenschaft und Kultur hervorgehoben. Die wichtigste Schlussfolgerung des Artikels: Zu allen Zeiten der Universitätsgeschichte, sogar in den schweren Jahren der Reaktion, standen die Bibliothekare der Universität in den ersten Reihen der gesellschaftlichen und wissenschaftlichen Tätigkeit. Sie waren ehrenvolle Repräsentanten der Universität Vilnius.
Editorial Foreword
Authors: Jenkovszky László
Published: August 2024

Non-Euclidean Geometry in Modern Physics and Mathematics is a series of biennial conferences initiated by the Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine in 1997, dedicated to the heritage of J´anos Bolyai, Carl Friedrich Gauss, and Nikolai Ivanovich Lobachevski (BGL, alphabetically), and held at various sites connected with the founders of the new geometry; for history see: https://indico.cern.ch/event/586799/page/8964-former-blg-conferences.
Beyond Einstein’s General Relativity: Hybrid Metric-Palatini Gravity
Authors: Lobo F.S.N.
Published: August 2024

It has been established that both metric and Palatini versions of f (R) gravity have interesting features, but also manifest several downsides. A hybrid combination of theories, containing elements from both formalisms, turns out to be very successful in accounting for the observed phenomenology and it is able to avoid some drawbacks of the original approaches. Here, we explore the formulation in a dynamically equivalent scalar-tensor form of this hybrid metricPalatini approach. We present several of its main achievements, such as, passing the Solar System observational tests even if the scalar field is very light or massless, and outline several applications to astrophysical and cosmological scenarios. Furthermore, we also explore the viability of generalized hybrid metric-Palatini gravitational theories.
Axion Halo around a Binary System of Dwarf Stars
Authors: Patkós A.
Published: August 2024

The gravitational field of a clump of ultralight axion like particles (ALPs) in its core with a rotating binary system of dwarf stars is computed. It is established that the induced quadrupole mass moment of the clump is controlled parametrically by the Ma/M mass ratio of the axion clump and the binary core.
Caregiver and Care Team Perceptions of Online Collaborative Care Planning for CMC
Authors: Moore Clara , Adams Sherri , Beatty Madison , Dharmaraj Blossom , Desai Arti D. , Bartlett Leah , Culbert Erin , Cohen Eyal , Stinson Jennifer N. , Orkin Julia
Published: August 2024

BACKGROUND AND OBJECTIVES

Care plans summarize a child with medical complexity’s (CMC) medical history and ongoing care needs. Often, the health care team controls the care plan content, limiting caregivers’ ability to edit the document in real time and potentially compromising accuracy and utility. With this study, we aimed to provide caregivers of CMC with online access and shared editing control of their child’s care plan and to explore the experiences of caregivers and care team members (CTMs) after using an online collaborative care plan (OCCP).

METHODS

Caregivers of CMC were recruited from a tertiary complex care program to use an online, patient-facing platform for 6 months, which included the ability to edit and share their child’s care plan. Caregivers and CTMs participated in semi-structured interviews to explore their experiences in using the OCCP. Consistent with grounded theory methodology, a constant comparative analysis was used, which allowed for theoretical sampling and theory generation.

RESULTS

A total of 15 caregivers and 20 CTMs completed interviews. Interviews revealed 3 major themes and 9 subthemes, including (1) the navigation of uncharted roles (trust, responsibility), (2) the requirements for success (electronic medical record integration, online access, collaborative care plan review), and (3) cohesive care (accessibility and convenience, being on the same page, autonomy). Themes informed the creation of a theoretical model for the implementation and utility of OCCPs.

CONCLUSIONS

Online, collaborative care plans, when implemented safely and thoughtfully, promote shared understanding, improve caregiver autonomy, and increase the accessibility of health information. Together, these benefits facilitate cohesive care and authentic partnership between caregivers and CTMs in the care of CMC.
A rational exploration of personalist bioethics: understanding its foundations
Authors: Hernandez-Ojeda Jaime , Requena Pablo
Published: August 2024

The aim of this article is to elucidate the rational foundations upon which personalist bioethics is built, thereby enhancing understanding regarding its place within the broader discourse of secular bioethics. Personalist bioethics, as a dynamic pursuit, actively engages with scientific discoveries, periodically revisiting them and considering contemporary individuals' diverse perceptions of identity and values. It integrates two foundational trunks: personalism and Aristotelian-Thomistic theology with metaphysical reference. The method employed by personalist bioethics is illustrated through triangulation: the exposition of biomedical reality, an in-depth study of anthropological significance, and the identification of values at stake. Rooted in a substantialist concept of the human person, it follows a systematic interaction of various knowledge spheres, aiming not only to describe problematic relations but also to propose prescriptive solutions. Personalism maintains that the human person is valuable for who he is and not only for the choices he makes; he is a source from which the choices proceed. According to personalist ethics, the ethical value of an act will have to be considered under the subjective aspect of intentionality, but it will also have to be considered in terms of its objective content and its consequences. The natural moral law that urges every conscience to do good and avoid evil, therefore, becomes concrete in respect for the human person in all the fullness of his values, his essence, and ontological dignity.
Improving patient flow in free medical service by introducing a process map: a quality improvement study
Authors: Buranda Lucky Sarjono
Published: August 2024

Introduction: The tradition of charitable medical treatment can be drawn back to the early years of Christianity when the Church growth closely related to the care for the sick as well as other charitable activities. Though its purpose is charity, free medical service should also improve the quality of service. It can be achieved through the implementation of lean six sigma tools. One of its tools is a process map. Process map in Lean Six Sigma is commonly used as a diagnostic tool to determine the possible bottlenecks in the system.
Methods: This is a brief pre and post quality improvement study. Before the implementation of a process map suggested by the researcher (period I), the patient flow was not properly organized. After the lunch break, the researcher introduced a new process map and briefed it to the committee. The patients flow in the afternoon (Period II) was using the process map. Patient numbers and wait times were measured within the time interval of this study.
Results: Out of 159 patients who served during the period of this study, 63 (40%) were male and 96 (60%) were female. During Period I of the medical service, 50 patients (31%)  were treated with average 17 patients per hour and approximate waiting time 36 minutes. After implementation of process map (Period II) the number of patients served were 109 (69%) with an average 36 patients per hour and an approximate waiting time of 17 minutes.
Conclusion: The implementation of process map in free medical service may assist in increasing the number of patients served and reduce the waiting time as a result. Apart from reducing the confusion of where the patients were to go next, the process map also help the committee to identify possible hinderances and address the impediments to efficient charitable medical care.
ASSESSING THE IMPACT OF SUPERVISION AND MANAGEMENT TRAINING ON POLICE OFFICER PERFORMANCE AT NKURENKURU POLICE STATION
Authors: Mabuku Kennedy Kaumba
Published: August 2024

This research explores the impact of supervision and management training on the performance of police officers at Nkurenkuru Police Station, focusing on improving law enforcement effectiveness. Conducted in the Kavango West Region of Namibia, the study aims to understand how training programs influence personnel performance. Qualitative research methods were employed, using semi-structured interviews and thematic analysis for data interpretation. The findings highlight a complex relationship between supervision and management training and police officer performance. While acknowledging some positive impacts of the training, the study identifies various obstacles that hinder its full effectiveness. These challenges include resource limitations, lack of follow-up support, administrative burdens, resistance to change, inadequate integration of training, and heavy workloads. The study suggests the importance of a comprehensive approach to supervision and management training tailored to the needs of law enforcement agencies. Recommendations include customising training programs, increasing participant engagement, and establishing consistent follow-up mechanisms. These insights are not only relevant to Nkurenkuru Police Station but also offer valuable lessons for law enforcement agencies worldwide seeking to optimise their performance through effective training strategies.
Analisis Model Rendaman Rob di Desa Tambakbulusan Kabupaten Demak Sebagai Evaluasi Rencana Pengembangan Kawasan Wisata Bahari
Authors: Claus Berril , Nugraha R. Bambang Adhitya , Gultom Iqbal S. , Anggoro Tri Danny , Jayawiguna Muhammad Hikmat , Setiyono Heryoso , Wirasatriya Anindya
Published: August 2024

Kabupaten Demak salah satu kawasan pesisir di utara Jawa Tengah yang sering mengalami banjir rob akibat kenaikan muka air laut dengan dampak yang siginifikan di wilayah tersebut seperti  terganggunya kegiatan pariwisata yang dikelola oleh masyarakat pesisir. Penelitian ini bertujuan untuk memperkirakan potensi genangan rob yang terjadi di Desa Tambakbulusan dan akan digunakan sebagai referensi rencana pengembangan wisata bahari di kawasan tersebut. Penelitian ini menggunakan metode kajian model genangan rob dari pasang surut dengan periode pengumpulan data sekunder selama 5 tahun dan uji akurasi hasil uji lapangan. Elevasi muka air laut lokasi kajian menggunakan prediksi pasang surut global MIKE 21 dan selanjutnya diolah untuk mendapatkan nilai bilangan Formzhal untuk mengetahui tipe pasang surut lokasi, dan selisih nilai HHWL dan MSL tertinggi selama 5 tahun periode. Model genangan rob kemudian dibuat dengan bantuan raster calculator pada ArcMap 10.8. Hasil penelitian menunjukan bahwa model genangan memiliki nilai accuracy sebesar 0,89 atau akurasi model 89%, nilai precision sebesar 1 atau presisi prediksi nilai positif 100%, dan recall sebesar 0.87 atau model dapat menangkap kasus positif sebanyak 87%. Hal ini menunjukkan bahwa algoritma memberikan hasil klasifikasi kondisi pesisir Tambakbulusan  saat banjir rob terjadi dengan sangat baik. Pengolahan elevasi muka air laut menunjukan kawasan pesisir Desa Tambakbulusan yang memiliki tipe pasang surut campuran condong harian tunggal dengan bilangan Formzhal sebesar 1,526, dikategorikan memiliki tingkat kerentanan sedang.  Genangan rob dengan tinggi muka laut 78 cm saat pasang menjangkau 72,11% luas Tambakbulusan dimana terdapat are tambak seluas 410,91 Ha dan area sawah seluas 3,88 Ha, sedangkan untuk pemukiman warga tidak terkena dampak dari banjir rob.
Diagnosis and Management of Adrenocortical Carcinoma with co-secretion of Cortisol and Aldosterone
Authors: Aliño Meghan Marie , Tam-Go Lyzanne Maryl
Published: August 2024

Adrenocortical carcinoma (ACC) accounts for 0.05-2% of all malignant tumors. Forty-five percent of ACCs with secretory function have excess glucocorticoids alone and only less than 1% secrete aldosterone.
This is a case of a 44-year-old  Filipino female with hypertension and a 12-year-history of an incidentaloma of the left adrenal gland, with recent-onset complaints of increasing abdominal girth, purple striae, amenorrhea, moon facies and a dorsocervical fat pad. Laboratory findings revealed low potassium levels, non-suppressed cortisol on dexamethasone test suggesting Cushing’s syndrome and elevated aldosterone-renin ratio and plasma aldosterone concentration pointing to primary hyperaldosteronism. A computed tomography scan revealed a left-sided adrenal mass measuring approximately 23 cm in largest diameter suggestive of carcinoma without metastasis or lymph node involvement. Complete resection via open adrenalectomy was performed and histopathologic assessment revealed Adrenocortical Carcinoma with Weiss score of 4. The Ki-67 proliferative index was found to be >20%. Radiotherapy was done as an adjuvant treatment.
Although rare, co-secretion of cortisol and aldosterone can occur in functional tumors of adrenocortical carcinoma. Malignancy should always be considered in patients who present with a history of a unilateral adrenal mass and/ or in those with signs and symptoms of adrenal hormone excess.  Thus, a proper assessment derived from a thorough medical history, physical examination and laboratory work-up is warranted in patients with an adrenal mass to ascertain the diagnosis and provide adequate management.
f-STATISTICAL CONNECTIONS AND MIAO-TAM STATISTICAL MANIFOLDS
Authors: Peyghan Esmaeil , Nourmohammadifar Leila , Ali Akram
Published: August 2024

We introduce f-statistical connections as a family of statistical connections and study some
geometric objects associated to these connections such as divergence, curvature and Ricci tensors, Hessian
and Laplacian operators. We construct examples of f-statistical connections and study the introducing
concepts on them. Finally we introduce Miao-Tam statistical manifolds and study properties of them.
Double Phase Variable Exponent Problems with Nonlinear Matrices Diffusion
Authors: Charkaoui Abderrahim , Pan Jinlan
Published: August 2024

This work tackles a class of double phase elliptic problems with variable exponents and matrices diffusion. Under suitable assumptions on the data, we use critical point theory to establish both the existence and uniqueness of weak solutions to the double phase problem under consideration.
On p-permutation equivalences between direct products of blocks
Authors: Yılmaz Deniz
Published: August 2024

We extend the notion of a p-permutation equivalence to an equivalence between direct products of block algebras. We prove that a p-permutation equivalence between direct products of blocks gives a bijection between the factors and induces a p-permutation equivalence between corresponding blocks.
Perspectivas para las políticas públicas de Atención Primaria en Salud en Suramérica
Authors: Almeida Patty Fidelis de , Giovanella Ligia , Schenkman Simone , Franco Cassiano Mendes , Duarte Petra Oliveira , Houghton Natalia , Báscolo Ernesto , Bousquat Aylene
Published: August 2024

Resumen El objetivo es realizar un análisis comparativo de la implementación de la APS en nueve países de Suramérica. A partir de fuentes documentales fueron destacadas tres dimensiones: compromiso político, liderazgo y gobernanza; modelo de atención; involucramiento de comunidades y otros actores. Los resultados indican la existencia de compromiso formal que localiza la APS en el centro de los esfuerzos para lograr el acceso universal. Se observan procesos de revitalización en los subsistemas públicos, basados en la garantía de acciones preventivas, promocionales, de cura y rehabilitación; puerta de entrada; enfoque familiar y comunitario; población y territorio adscriptos; equipos multiprofesionales, y, en algunos casos, énfasis en la interculturalidad expresada en la concepción de “buen vivir”. Los procesos de revitalización de la APS fueron afectados por cambios políticos. Entre avances y retrocesos, no se logró superar la segmentación de cobertura. El momento actual es de rescate de políticas públicas más inclusivas y amplias, en el contexto de recomposición de los campos progresistas y democráticos. Difundir experiencias de los países puede contribuir para el desarrollo de un enfoque de APS integral, integrada y de calidad en la Región.
Exploring the Potential of High Entropy Alloys: A Comprehensive Review on Microstructure, Properties and Applications: Part II
Authors: Arun S. , Radhika N. , Saleh Bassiouny
Published: August 2024

This is Part II of a comprehensive review analysing recent studies on various high entropy alloys (HEAs). Here, we present their magnetic and electrical properties, corrosion resistance, wear behaviour and different applications. Remaining challenges and perspectives are summarised. The anticipated findings of this two-part review are a milestone for future investigations on the production and analysis of HEAs. The discoveries hold great value for researchers, designers and manufacturers working in this field, as they offer valuable knowledge regarding the characteristics and possible uses of HEAs. Consequently, these findings lay the groundwork for further exploration in this promising field of materials science.
INHOMOGENEOUS WAVE PROPAGATION IN POROTHERMOELASTIC MEDIUM WITH DUAL-PHASE-LAG HEAT CONDUCTION
Authors: Kumari Manjeet , Priyanka  , Kumari Neelam , Kaswan Pradeep , Kumar Manjeet
Published: August 2024

We are examining a mathematical model incorporating a heat conduction dual-phase-lags (DPL) model. One may use
this model to examine how thermoelastic waves behave in a porous thermoelastic material. A modified version of the
Christoffel equations is extracted from the model to investigate the propagation of harmonic plane waves. We next
solve these equations to get the complex velocities of waves in the medium. Four waves appear in the medium, and
the equations explain their existence and propagation. We find the correlations between the displacements of solid and
fluid particles and the wave-induced temperature in the medium. The study considers the case of inhomogeneous wave
propagation, defined by a complex slowness vector specification with a finite non-dimensional parameter indicating the inhomogeneity degree. Each of the four attenuated waves propagating inhomogeneously through the porous aggregate has its phase velocities and attenuation coefficients determined. We calculate the velocities and attenuation of the compressional and shear waves using a numerical model of liquid-saturated sandstone. Their fluctuations with thermal and poroelastic parameters are depicted visually.
FUNDAMENTAL INVESTIGATION OF LIQUID INJECTION IN SUPERSONIC CROSSFLOW: AN EXPERIMENTAL STUDY
Authors: Srinivas M. V. V. , Rajagopal Arun Kumar , Kothadia B. Hardik
Published: August 2024

Experimental investigation of the liquid injection into a Mach 2.2 supersonic crossflow through a transverse single circular injector has been carried out in the present study. High-speed visualization techniques such as back-lit imaging, shadowgraphy, and schlieren imaging have been employed to investigate the flow and the liquid jet features. The present study provides a detailed analysis
of the breakup behavior of a liquid jet introduced into a crossflow with a Mach number of 2.2 by categorizing it into distinct zones. The liquid jet breakup was induced by surface instabilities, leading to the formation of a protrusion structure that traveled downstream along the jet. The schlieren photographs captured the essential flow dynamics resulting from the liquid injection, such as the
bow shock wave and the separation shock wave. Observations indicated that the location where the bow shock wave interacts with the upper wall shifts in the upstream direction as the liquid injection pressure is increased. Furthermore, a parametric analysis was conducted to assess the penetration height of the injected liquid and its variation relative to the injection pressure. The analysis revealed that the penetration of the jet was greatest at an injection pressure of 7 bar, succeeded by 5 bar and 3
bar, respectively. The minimal penetration height was recorded at an injection pressure of 1 bar. In a
quantitative analysis, the penetration of a liquid jet was measured at various injection pressures at
a normalized axial distance of 5. It was found that the penetration of the liquid jet with an injection
pressure of 7 bar was 3.67 times greater than the liquid injection with an injection pressure of 1 bar.
Sustainable non-volatile resistive switching memory using chitosan/MEH-PPV polymer blend
Authors: Dlamini Z. W. , Vallabhapurapu S. , Vallabhapurapu V. S.
Published: August 2024

Functionalisation of materials is crucial in modern science and technology, particularly biodegradable ones, to reduce the increasing electronic waste affecting the planet. In this study, the electronic behaviour of chitosan was modified by incorporating the MEH-PPV polymer. Four composites with weight percentages of 0.25 (S1), 0.5 (S2), 1 (S3), and 1.5 (S4) wt% were prepared. The optical energy bandgap of these composites ranged from 2.0 to 3.02 eV. These materials were studied for their potential use in resistive switching memory (ReRAM). Two device classes: Class A (drop cast) and Class B (spin coat), were developed. The Class A S4-based device exhibited memory behaviour with a minimum of 20 write/erase cycles. The other devices in this class demonstrated poor conductivity and data noise. Class B devices exhibited no switching, except for the S3-based device. This research suggests that the thickness of class A devices has a notable impact on their performance limitations. The study shows that the chitosan:MEH-PPV blend holds promise for environment-friendly ReRAMs, and optimizing the thickness and weight ratio can significantly improve device performance.
Offline Payments: Implications for Reliability and Resiliency in Digital Payment Systems
Authors: Aboulaiz Laila , Akintade Bunmi , Daud Hamzah , Lansey Monique , Rodden Megan , Sawyer Lucas , Yip Matthew
Published: August 2024

With the proliferation of digital payments, internet-based technology has been integral in supporting the delivery of these transactions. Traditional digital payments, such as those made with credit cards, debit cards, and mobile wallets, often require an internet connection to settle transactions. Processors must communicate between banks to carry out a payment, relying on internet connectivity to do so.
2020 Survey of Finance Companies
Authors: Adams Robert , Chen Lisa , Chernousov Michael
Published: August 2024

This paper discusses the findings from the 2020 Survey of Finance Companies.
Izrada prijedloga znanstveno-istraživačkih projekata
Authors: Šobota Dijana , Špiranec Sonja
Published: August 2024

Relevantni, inovativni i kvalitetni znanstveno-istraživački projekti i sposobnost njihovog pisanja ključna su komponenta znanstvenog rada, od presudne važnosti za daljnji razvoj znanosti, doprinos društvu kao i razvoju i napretku u znanstvenim i istraživačkim karijerama doktoranada-mladih znanstvenika. Ova radionica je, stoga, usmjerena na postizanje sljedećih ciljeva: (1) izgraditi samopouzdanje doktoranada za pisanje i prijavljivanje projekata; (2) razviti sposobnost prepoznavanja relevantnih i inovativnih istraživačkih tema i prijedloga; (3) omogućiti razvoj istraživačko-projektnih kompetencija doktoranada; (4) doprinijeti podizanju kvalitete projektnih prijedloga mladih znanstvenika, (5) potaknuti suradnju i umrežavanje doktoranada te uspostavu mreža suradnika za daljnji znanstveno-istraživački rad i (6) potaknuti povezivanje i integraciju različitih aspekata i grana u znanstveno-istraživačkim projektima. Na radionici će doktorandi kroz interaktivan i pragmatično orijentiran timski grupni rad, razvijati konkretne prijedloge znanstveno-istraživačkih projekata. Sudionici će raditi na unaprijed definiranim temama projektnih prijedloga koje su u središtu interesa informacijskih i komunikacijskih znanosti. Na radionici će razvijati strukturu tipičnog projektnog prijedloga koji uključuje elemente kao što su istraživačka pitanja na koja projekt pokušava odgovoriti; značaj projektnog prijedloga; metodologija i planirane metode i projektne aktivnosti; znanstveni, stručni/praktični i društveni doprinosi projekta; potencijal za izgradnju partnerstva i suradnji te ograničenja projektnih prijedloga. Svi razvijeni prijedlozi bit će predstavljeni i vrednovani u plenarnoj raspravi svih sudionika Konferencije s ciljem podizanja kvalitete projektnih prijedloga. Sudionici Konferencije odlučit će i o najboljem projektnom prijedlogu.
Fen Eğitiminde Okul Dışı Öğrenme Ortamlarına İlişkin Yapılan Çalışmaların Sistematik Derlemesi
Authors: Şahbaz Esra , Karabulut Hilal , Gökçe Hasan , Kariper İshak Afşin
Published: August 2024

Bu çalışmada fen bilgisi eğitimi alanında 2012-2022 yılları arasında okul dışı öğrenme ortamları ile ilgili Türkiye’de yürütülmüş çalışmaların incelenmesi ve konu ile ilgili genel eğilimin açığa çıkarılması hedeflenmektedir. Bu kapsamda nitel bir araştırma tasarlanmıştır. Çalışma sistematik derlemeyi model alarak yürütülmüştür. Bu doğrultuda öncelikte literatürde yer alan" Fen eğitiminde okul dışı öğrenme" konulu çalışmalar bir makale havuzunda toplanmıştır. Çalışma kapsamında araştırmaya dâhil edilme şartlarını sağlayan 29 çalışmaya ulaşılmıştır. İncelenen çalışmalar içerik analizi ile çözümlenmiştir. Bulgularda incelenen çalışmalara ilişkin frekans ve yüzde şekilleri verilerek çalışmalara ilişkin bilgiler yorumlarda verilmiştir. Yapılan incelemelerde daha çok uluslararası makalenin yayımlandığı görülmektedir. İlgili alanda en çok 2018 ve 2021 yıllarında yapıldığı tespit edilmiştir. Bununla birlikte okul dışı öğrenme çalışmalarının en fazla yayının İnformal Ortamlarda Araştırma Dergisi’nde yayımlandığı, en fazla “okul dışı öğrenme” anahtar kelimesinin kullanıldığı, yapılan çalışmaların büyük çoğunluğunun görüş almaya yönelik olduğu görülmüştür. Ayrıca araştırmalarda en sık tercih edilen desenin olgu bilim, en çok kullanılan veri toplama aracının yarı yapılandırılmış görüşme formu olduğu, katılımcı olarak en çok öğretmen ve öğrenciler ile çalışıldığı, en sık kullanılan veri analizi yönteminin içerik analizi olduğu görülmüştür.
Öğretmen Adaylarının Matematikten Zevk Alma Durumları ile Matematik Alan Bilgisi, Kaygısı ve Özyeterlik Algısı Arasındaki İlişki
Authors: Kılıç Melda , Akıllıoğlu Fatma Çağlin , Avcı Canan , Erhan Gülseren
Published: August 2024

: Bu çalışmada okul öncesi öğretmen adaylarının matematikten zevk alma durumları ile matematik alan bilgileri, matematik kaygıları ve matematik özyeterlik algıları arasındaki ilişki incelenmiştir. Araştırmaya okul öncesi öğretmenliği lisans programında öğrenim gören 102 gönüllü öğretmen adayı katılmıştır. Araştırmanın örneklemi elverişli örnekleme yöntemiyle belirlenmiştir. Veriler araştırmacılar tarafından derlenerek hazırlanan çevrim içi bir anket formuyla toplanmıştır. Öğretmen adaylarının matematikten zevk alma durumları “Matematikten Zevk Alma” ölçeğiyle değerlendirilmiştir. Matematik alan bilgileri ise “Yükseköğretim Geçiş Sınavı Matematik Testi”nden almış oldukları net puan üzerinden değerlendirilmiştir. Öğretmen adaylarının matematik kaygıları “Matematik Kaygısı Ölçeği”, matematik özyeterlik algıları ise “Matematik Özyeterlik Algısı” ölçeği ile değerlendirilmiştir. Elde edilen veriler doğrultusunda öğretmen adaylarının matematikten zevk alma durumu ile matematik alan bilgisi arasında anlamlı bir ilişki olmadığı belirlenmiştir. Öğretmen adaylarının matematikten zevk alma durumunun matematik kaygısı ile negatif yönde, matematik özyeterlik algısı ile pozitif yönde orta düzeyde ilişkili olduğu gözlemlenmiştir. Başka bir deyişle, öğretmen adaylarının matematik kaygısı ve matematik özyeterlik algısı matematikten zevk alma durumunu etkilemektedir. Ayrıca, matematik kaygısının matematikten zevk alma durumu üzerinde diğer değişkenlere kıyasla daha kuvvetli bir etkiye sahip olduğu tespit edilmiştir. Sonuç olarak bu bulgular, okul öncesi öğretmen adaylarının matematikle ilgili olumlu duygularının desteklemesi ve eğitim ihtiyaçlarının belirlenmesine yönelik fikirler sağlamaktadır.
Ters Yüz Sınıf Modeli’ nin Öğrencilerin Matematik Başarısı, Tutumu ve Kaygısına Etkisi
Authors: Bulut Recep , Bekdemir Mehmet
Published: August 2024

Bu araştırmanın amacı gerçek bir eğitim ortamında uygulanabilir bir Ters Yüz Sınıf Modeli örneğinin öğrencilerin matematik başarısı, tutumu ve kaygısına etkisini incelemektir. Ters Yüz Sınıf Modeli uygulamasında öğrencilerin sınıf dışı çalışmaları için Eğitim Bilişim Ağı’ndan, sınıf içi etkinlikler için ise Matematikle Düşünen Sınıflar teorik çerçevesinden faydalanılmıştır. Araştırmanın yöntemi ön test son test kontrol gruplu yarı deneysel desendir. Araştırmada deney grubu 12 öğrenciden, kontrol grupları ise biri 21, diğeri 23 öğrenci olmak üzere toplam 44 öğrenciden oluşmuştur. Uygulama 16 hafta boyunca devam etmiştir. Veri toplama aracı olarak başarı testi, tutum ölçeği ve kaygı ölçeği kullanılmıştır. Araştırmanın sonuçlarına göre araştırmada kullanılan Ters Yüz Sınıf Modeli örneği, deney grubu öğrencilerinin matematik başarılarını kontrol gruplarına göre anlamlı olarak artırmış ve başarılarının kalıcılığını sağlamıştır. Ancak uygulama sürecinde deney grubu öğrencilerinin tutum ve kaygı puanları değişmemiştir. Araştırmada kullanılan Ters Yüz Sınıf Modeli uygulamasıyla öğrenci başarılarının artması, modelin matematik eğitiminde alternatif bir yöntem olarak kullanılmasının yararlı olabileceği fikrini desteklemektedir. Ters Yüz Sınıf Modelinin öğrencilerin başarılarını artırırken tutum ve kaygılarını neden etkilemediğinin araştırılması önerilmektedir.
Impactos das Atividades Agrícolas em Área de Amazônia Legal
Authors: Souza Natallia Sanches e , Paula Diana Carolina Jesus de , Almeida Geisianie Arruda de , Pedroso Maxwel Pires , Paiva Fabio Friol Guedes de
Published: August 2024

O Código Florestal brasileiro determina a conservação de 80% das áreas florestadas em propriedades rurais como reserva legal. No entanto, nas últimas décadas, o avanço das áreas agrícolas vem resultando em severas mudanças no uso e cobertura do solo. O objetivo desta investigação é analisar as mudanças e transformações ocorridas no uso e cobertura do solo na cidade de Sinop-MT, que é derivada da ocupação da Amazônia Legal Brasileira. Foram investigadas as mudanças espaço-temporais entre os anos de 1985 e 2022. A metodologia utilizada para obtenção dos mapas foi através da Plataforma MapBiomas. Os relatórios socioeconômicos foram coletados da base de dados do Instituto Brasileiro de Geografia e Estatística (IBGE). Os resultados mostraram o avanço da agricultura na região, principalmente entre os anos de 1995 e 2005, correspondente ao aquecimento econômico pelo Plano Real, incentivado pelo governo federal para a expansão territorial na região norte do Mato Grosso, o que levou a altos índices de desmatamento nesse período. No entanto, em 2004, são criados programas de monitoramento para conter o desmatamento na Amazônia Legal, freando a expansão agrícola entre 2005 e 2022.
Periplocin improves the sensitivity of oxaliplatin-resistant hepatocellular carcinoma cells by inhibiting M2 macrophage polarization
Authors: Weng Jiefeng , Liu Hui , Wu Zhaofeng , Huang Yu , Zhang Shuai , Xu Yujie
Published: August 2024

The aim of this research was to investigate the impact of periplocin (PPLN) on oxaliplatin (OXA) resistance in hepatocellular carcinoma (HCC) cells and offer insights for improving clinical treatment of HCC. The IC50 value of HCC cell lines against OXA was detected by the CCK-8 assay, and an OXA-resistant HepG2 cell line (HepG2/OXA) was constructed. THP-1 cells were induced into M1 or M2 macrophages, and M2 macrophage-conditioned medium (M2-CM) was prepared. M1 and M2 macrophage polarization were detected using RT-qPCR and flow cytometry. CCK-8, EdU staining, clone formation assay, flow cytometry, and western blotting were used to assess the proliferation and apoptosis of HepG2/OXA cells treated with PPLN and M2-CM. Additionally, a nude mouse subcutaneous graft tumor model was constructed. PPLN enhanced the sensitivity of HepG2/OXA cells to OXA, reduced their clone-forming ability, and promoted their apoptosis. Notably, PPLN hindered M0 macrophage polarization to M2 macrophages, while M1 polarization remained unaffected. The proliferation-inhibiting and apoptosis-promoting effects of OXA+PPLN on HepG2/OXA cells were significantly attenuated by the addition of M2-CM, suggesting that PPLN improves the OXA sensitivity of HepG2/OXA cells by hindering M2 macrophage polarization. Furthermore, PPLN inhibited M2 macrophage polarization and improved the OXA sensitivity of HepG2/OXA cells in vivo. In conclusion, PPLN inhibited the proliferation of HepG2/OXA cells, promoted their apoptosis, and inhibited M2 macrophage polarization both in vivo and in vitro, which in turn enhanced the OXA sensitivity of HepG2/OXA cells.
Digital Platforms Regulation in Brazil:the Political Context of New Laws Adoption
Authors: Popova Irina
Published: August 2024

Brazil is a major market and both the G20 and BRICS member. It is particularly important to analyse Brazil’s positionon digital platforms and markets regulation in the context of its G20 Presidency, where since the beginning of the year ithas been trying to agree on common solutions to regulate digital platforms, especially in the aspect of content moderationand the fight against fake news. The fight against misinformation and hate speech is one of the central themes of Brazil’s2024 G20 presidency programme, which aims to ensure the integrity of information in the digital environment. Accordingto Brazilian officials, preventing the spread of misinformation requires action on four directions: guaranteeing regulationby holding digital platforms responsible for the dissemination of illegal and harmful content, implementing media educationstrategies, strengthening professional journalism, and expanding public policies aimed at disseminating correct informationto the public.The aim of this article is to identify Brazil’s main priorities in digital platforms regulation. Project laws dedicatedto the regulation of digital platforms are analyzed, as well as the political context of their submission and consideration,because they were proposed during and following the 2018 and 2022 electoral campaigns. Coordinating positions with Brazilon the regulation of digital platforms may help to better address the interests of developing countries, as well as marketswhere large technology companies play a significant role but are subject to the laws of other jurisdictions
Digital Media Usage and Individual Well-being: Evidence from the China Family Panel Survey
Authors: Jiajing Liu , Jie Zhang
Published: August 2024

Previous studies rarely explored either the non-linear effect of time or the mechanism of purpose and reference as contextual factors that affect individual well-being. This study was conducted to examine the relationship between digital media usage and the levels of subjective well-being by using data from the China Family Panel Studies. The multiple linear regression model was applied to this research. The results showed screen time within 18 hours per week had a positive impact on subjective well-being for the sample (n = 8,531). Any screen time over 18 hours per week had a negative impact. Digital media usage for work and social activities was found to be related to subjective well-being (p < 0.05). The usage for consumption was associated with lower levels of subjective well-being (p < 0.05). The effect of digital media on individual well-being is dependent on time control, the gratification of personalized needs in the process of use, and the reference frame in the pseudo environment.