bluuebunny/crossref_metadata_2025 huggingface dataset:
A Study on the Feasibility and Utility of Continuous Glucose Monitors in Elite Football
Authors: Harries Sophie , J. Clayton David , A. Johnson Michael , Burbeary Ross , T. Thorpe Robin , Varley Ian
Published: February 2025

Physiological performance may be limited by reduced systemic glucose availability to working muscles. Continuous glucose monitors (CGM) measure interstitial glucose every 1-15 minutes, offering a practical way to assess glucose during sporting activity. However, empirical research has predominantly focused on endurance-based sports, whereas glucose responses during professional competitive football matches remain unknown. This study evaluated the feasibility and utility of CGM in professional football. Eight professional, male outfield footballers from the English third tier participated in the study. Participants completed a 14-day food diary control period, followed by a 28-day observation period wearing CGM devices during six matches and sixteen training sessions. CGM devices remained in situ for 98% of training sessions and matches. Mean glucose concentrations were 6.5 ± 1.2 mmol/L during training sessions, 7.5 ± 2.1 mmol/L during match play, and 5.4 ± 0.3 mmol/L overnight. No significant differences were found between glucose concentrations during match play (p = 0.060) or training (p = 0.510), compared to overnight fasted glucose concentrations. There was also no difference between training and match-play glucose concentrations (p = 0.788). Glucose concentrations were highly individualised, with one player displaying minimal change throughout match play (-0.2 mmol/L) whereas another experienced increases of up to 5.8 mmol/L. Non-nutritional factors appeared to influence glucose concentrations; participants (n=3) who used nicotine pouches displayed an transient increase in blood glucose in the 10-55 minutes after administration. This study concludes that CGM use in professional football is feasible for assessing individual glucose responses to training and match-play.
O outro lado da metáfora
Authors: Figueira Filipo
Published: February 2025

Neste ensaio teórico, pretende-se dar continuidade às considerações tecidas anteriormente sobre o “ordinário do sentido”, como este conceito aparece no pensamento de Michel Pêcheux. Propõe-se uma forma de dar consequências à necessidade de pensar a práxis dentro de uma teoria discursiva do sentido e da linguagem através da reinterpretação do “primado da metáfora”, princípio semântico que sustenta a Análise do Discurso desenvolvida por ele. Defende-se, assim, que de dentro da própria proposição do “primado da metáfora”, o “efeito de sentido” pode então ser melhor compreendido como um laborioso esforço para fazer sentido, também fazendo aí intervirem as reflexões sobre a possibilidade de uma performatividade do discurso. Caminha-se, portanto, na direção da hipótese da materialidade prática do sentido, evidenciando o papel teórico do fazer discursivo do sujeito com a língua.
Migrações do pensamento bakhtiniano nas lentes analíticas de Pampa Arán
Authors: Stafuzza Grenissa
Published: February 2025

O livro "A herança de Bakhtin: reflexões e migrações (seleção de textos)", de Pampa Olga Arán (in memoriam), traduzido por Nathan Bastos de Souza, trata-se da última publicação da professora e pesquisadora argentina que nos deixa um importante legado de contribuições para o campo dos estudos bakhtinianos, especialmente por meio do conceito de migração. O livro é composto por uma introdução de autoria do tradutor intitulada “Pampa Arán, leitora de Bakhtin”, “Apresentação à edição brasileira” de autoria de Arán e três seções, assim intituladas: “Primeira Parte: interseções e migrações”, “Segunda parte: categorias em discussão” e “Terceira Parte: uma entrevista sobre a herança de Bakhtin e outros temas” em que o tradutor entrevista a autora. A entrevista apresenta-se de modo especial, uma vez que contém perguntas sobre o próprio livro, o que a torna formidável para o(a) leitor(a) conhecer a visão teórica, analítica e humana de Pampa Arán.
การพัฒนาสื่อการสอนออนไลน์ เรื่อง รายการอาหารแลกเปลี่ยนของนักเรียนระดับประกาศนียบัตรวิชาชีพ วิทยาลัยอาชีวศึกษาเสาวภา
Authors:   มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, วงค์ชมภู วรวลัญช์ , กี่อาริโย ชญาภัทร์ ,   มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Published: February 2025

การศึกษาวิจัยมีวัตถุประสงค์เพื่อ 1) ศึกษาประสิทธิภาพของสื่อการสอนออนไลน์ เรื่อง รายการอาหารแลกเปลี่ยนของนักเรียนระดับประกาศนียบัตรวิชาชีพ วิทยาลัยอาชีวศึกษาเสาวภา 2) ประเมินความเหมาะสม และความเป็นประโยชน์ของสื่อการสอนออนไลน์ และ 3) ศึกษาความพึงพอใจของนักเรียนที่มีต่อสื่อการสอนออนไลน์ โดยมีประชากรเป็นนักเรียนหลักสูตรประกาศนียบัตรวิชาชีพชั้นปีที่ 1 แผนกอาหารและโภชนาการ วิทยาลัยอาชีวศึกษาเสาวภา จำนวน 30 คน และดำเนินการสุ่มแบบเจาะจง ซึ่งเครื่องมือที่ใช้ในการวิจัย ได้แก่ สื่อการสอนออนไลน์ แบบประเมินความเหมาะสม และความเป็นประโยชน์ของสื่อการสอนออนไลน์ และแบบสอบถามความพึงพอใจที่มีต่อสื่อการสอนออนไลน์ และสถิติที่ใช้ในการวิเคราะห์ข้อมูล ได้แก่ ค่าE1/E2 ค่าเฉลี่ย และค่าส่วนเบี่ยงเบนมาตรฐาน
ผลการวิจัย พบว่า 1) สื่อการสอนออนไลน์ เรื่อง รายการอาหารแลกเปลี่ยนของนักเรียนระดับประกาศนียบัตรวิชาชีพ วิทยาลัยอาชีวศึกษาเสาวภา มีประสิทธิภาพเท่ากับ 80.11/ 89.78 ซึ่งสูงกว่าเกณฑ์ที่กำหนดไว้ 2) ผู้เชี่ยวชาญมีความคิดเห็นว่าสื่อการสอนออนไลน์มีความเหมาะสมโดยรวมอยู่ในระดับมากที่สุด และมีประโยชน์โดยรวมอยู่ในระดับมาก และ3 ) นักเรียนมีความพึงพอใจต่อสื่อการสอนออนไลน์อยู่ในระดับมาก เมื่อพิจารณาเป็นรายด้านเรียงจากมากไปหาน้อย พบว่า ด้านที่มีค่าเฉลี่ยสูงสุดคือ ด้านประโยชน์ต่อผู้ใช้สื่อออนไลน์ รองลงมาคือ ด้านการออกแบบสื่อออนไลน์ และน้อยที่สุดคือ ด้านเนื้อหาของบทเรียน สรุปได้ว่า นักเรียนมีความพึงพอใจต่อสื่อการสอนออนไลน์โดยรวมอยู่ในระดับมาก ซึ่งเป็นไปตามสมมติฐานที่ฐานตั้งไว้
การใช้น้ำมันพืชพรีอิมัลซิฟายด์ในผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืช
Authors:   มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร, หินแก้ว ศุภักษร , สุธีบุตร น้อมจิตต์ ,   มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Published: February 2025

การวิจัยนี้มีวัตถุประสงค์เพื่อ 1) ศึกษาสูตรพื้นฐานผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืชโดยใช้กลูเตน 2) ศึกษาปริมาณน้ำมันพืชพรีอิมัลซิฟายด์ที่เหมาะสมในผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืช 3) ศึกษาคุณลักษณะทางกายภาพและเคมีของผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืชที่ใช้น้ำมันพืชพรีอิมัลซิฟายด์ 4) ศึกษาคุณค่าทางโภชนาการของผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืชที่ใช้น้ำมันพืชพรีอิมัลซิฟายด์ และ 5) ศึกษาเปรียบเทียบต้นทุนการผลิตผลิตภัณฑ์ไส้กรอก
ผลการวิจัยพบว่า ผู้ทดสอบการชิมได้ให้คะแนนความชอบผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืชที่ใช้กลูเตนทดแทนเนื้อไก่ในสูตรพื้นฐานไส้กรอกเวียนนาไก่ทั้ง 3 สูตรแตกต่างกันอย่างมีนัยสำคัญทางสถิติที่ระดับ 0.05 โดยสูตรที่ 3 มีคะแนนความชอบด้านเนื้อสัมผัส (ความแน่นเนื้อ) สี และรสชาติสูงกว่าสูตรที่ 1 และสูตรที่ 2 ผลการศึกษาปริมาณน้ำมันพืชพรีอิมัลซิฟายด์ที่เหมาะสมในผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืชสูตรที่ 3 พบว่าการใช้น้ำมันพืชพรีอิมัลซิฟายด์ร้อยละ 75 ของปริมาณน้ำมันพืชที่ใช้ในส่วนผสมไส้กรอกได้รับคะแนนความชอบมากกว่าร้อยละ 50 และร้อยละ 100 การใช้น้ำมันพืชพรีอิมัลซิฟายด์ในส่วนผสมมีผลให้ค่าความคงตัวของอิมัลชันดิบ ค่าการสูญเสียน้ำหนักขณะทำให้สุกและค่าปริมาณผลผลิตที่ได้ของไส้กรอกสูงขึ้น (p≤0.05) และมีผลให้ไส้กรอกมีสีเข้มขึ้น โดยค่า L* ลดลง ค่า a* และ b* เพิ่มขึ้นอย่างมีนัยสำคัญทางสถิติที่ระดับ 0.05 แต่ไม่มีผลต่อค่ากิจกรรมของน้ำ (aw) อย่างมีนัยสำคัญทางสถิติที่ระดับ 0.05 ปริมาณน้ำมันพืชพรีอิมัลซิฟายด์ที่เพิ่มขึ้นถึงร้อยละ 100 มีผลให้ไส้กรอกมีค่าความแน่นเนื้อ ค่าความคงทนเมื่อถูกเคี้ยว ค่าความเหนียวยึดติด ค่าความยืดหยุ่นและค่าความสามารถในการยึดเกาะลดลงอย่างมีนัยสำคัญทางสถิติที่ระดับ 0.05 เมื่อนำผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืชที่ใช้น้ำมันพืชพรีอิมัลซิฟายด์ ไปวิเคราะห์องค์ประกอบทางเคมีในปริมาณ 100 กรัม ให้พลังงาน 189.54 กิโลแคลอรี่ ไขมัน 10.10 กรัม โปรตีน 15.90 กรัม คาร์โบไฮเดรต 8.76 กรัม เถ้า 2.13 กรัม และความชื้น 63.08 กรัม ซึ่งให้ค่าพลังงานและไขมันที่ต่ำกว่าแต่มีปริมาณโปรตีนมากกว่าไส้กรอกเวียนนาไก่สูตรพื้นฐาน จากการเปรียบเทียบต้นทุนของการผลิตพบว่าผลิตภัณฑ์ไส้กรอกเนื้อเทียมจากพืชที่ใช้น้ำมันพืชพรีอิมัลซิฟายด์มีราคาต้นทุนที่ต่ำกว่าผลิตภัณฑ์ไส้กรอกเวียนนาไก่สูตรพื้นฐานร้อยละ 21
La limitada perseguibilidad de los delitos societarios
Authors: Bustos Rubio Miguel
Published: February 2025

En este trabajo se somete a examen crítico la condición de perseguibilidad prevista para los delitos societarios en el art. 296 del Código Penal. Se parte de unas ideas previas sobre la incorporación de estos tipos penales en el Código Penal español del año 1995, para descender después a la exégesis sobre el concreto fundamento y la naturaleza jurídica del precepto. Se analiza igualmente el contenido de la cláusula, desde un estudio de la regla general y las excepciones que en ella se prevén. Finalmente se llega al objeto central de la investigación, consistente en someter a un filtro crítico la existencia de una limitación en cuanto a la perseguibilidad de estos delitos económicos, ofreciéndose diversos argumentos que avalan la necesidad de supresión de la norma, con su consecuente propuesta de lege ferenda.
Soudcovská tvorba ochrany základních práv a svobod v procesu europeizace trestního práva
Authors: Tomášek Michal
Published: February 2025

Since there is no legally binding document of the EU providing a complete catalogue of basic rights and freedoms, the process of europeision of criminal law has been for a long time confronted with a Jack of sources in this domain. The Charter of EU basic rights and freedoms as adopted by the European Council in Nice in 2000 has only an informal value and the Treaty Establishing a Constitution for Europe including in its part II the index of basic rights and freedoms is still waiting for its ratification. In such a situation, the only legally binding source of protection of human rights and freedoms are general provisions of the EC Treaty (particularly art. 13) and of the EU Treaty (particularly art. 6). Very important are references to the European Covenant of Human Rights as stipulated by the provisions of the EU Treaty. The European Court of Justice as a sort of “European Constitutional Court” has recently played an important role in shaping the protection of basic rights and freedoms in several agendas of European integration, including europeisation of criminal law. When the civic element of the Community law was strengthened after the ratification of the EU Treaty in the early 1990s, national Constitutional Court became to consider certain role of the European Court of Justice as guard of basic rights and freedoms on the Community and Union level. Case law pronounced by the European Court of Justice brought about relatively useful basis for protection of basics rights and freedoms in the process of europeisation of criminal law such as protection of domicile, protection of personal data, protection of personal integrity and dignity etc. Recent case law has been dealing as well with such procedural rights important for criminal prosecution like protection of victims, ne bis in idem or prohibition of retroactive effect. Recent judiciary practice of the European Court of Justice has shown that under the condition of absence of a legally binding catalogue for protection of basic rights and freedoms, this EU authority can play an important role and it can in the matter of fact broaden EU competencies in the area of criminal law and cooperation in justice matters.
Zákaz mučení v judikatuře Evropského soudu pro lidská práva
Authors: Herczeg Jiří
Published: February 2025

The purpose of this article is the protection of the imprisoned or arrested people against the possibility of pressure or even torture by the repressive organs. Is the prohibition really absolute, doesn’t it come face to face of the global terrorism to a relativisation of this law? That is the major question, the author is trying to answer. The author depicts in the article the most important international obligations of the Czech Republic in the area of the protection against torture and it leads especially to the European Convention on Homan Rights. On concrete cases, which the European Court of Human Rights solved, is depicted article 3 of the Arrangement and individual conceptions, such as torturing, not human or humiliating treatment. In the following part of the article, the operation before the European Court is described and the process guarantees, which is confessed to the harmed by article 3. In the last part of the article, the author is thinking about the relativisation of the absolute prohibition of torturing after September 11th 2001. The author comes to the conclusion that the judicature of the European court for torturing is unambiguous. The prohibition of torture, not human or humiliating treatment is absolute, the Arrangement prohibits it even in the most serious circumstances, such as are the fight against the terrorism or organised crime.
Ochrana osobních údajů v Schengenském informačním systému
Authors: Vlastník Jiří
Published: February 2025

Enlarging of the European Union poses a great challenge to the Schengen cooperation which all new Member states are supposed to participate on without any exceptions. A free movement of persons being its foremost objective, the elimination of borders checks must be accompanied by compensatory measures, one of which is the creation of Schengen information system (SIS). Before the full integration of new EU Members to Schengen cooperation, the SIS must be substantially reformed to meet new technical and qualitative requirements. The Commission has already submitted all the relevant proposals to establish SIS II. This work aims to give an overview of the SIS construction, functioning and reform, focusing on the protection of personal data within the system. It approaches legal documents and recent Commission proposals one after another to give a complex survey of the personal data protection in SIS and SIS II, taking fully into account recent decisions of European Court of Justice and European Court of Homan Rights. Having analysed the European framework of the personal data protection the work examines the current Czech system of protection of data in police evidences pointing at potential similarities in future development compared to France.
Trestný čin obchodování s lidmi v mezinárodním a česko-německém kontextu
Authors: Hořák Jaromír
Published: February 2025

The article treats of the issue of trafficking in human beings as a grave criminal phenomenon in the East and Centra) Europe. It comments on the probable extent and latency of the crime and describes its usual forms from both criminological and legal viewpoints. Further it focuses more specifically on the trends of the sex industry related crime in the border regions of the Czech Republic and in Germany. The second part deals with the instruments of international and EU law in combating human trafficking and compares the merits of particular international conventions and European framework decisions. The third part concentrates on comparing the gradual development of the corresponding provisions on human trafficking and related crime in the Czech and German penal codes. ln conclusion there are several remarks on the cooperation between Czech and German police authorities.
The role of coaches’ drawing in memorizing tactical soccer scene: a visuospatial abilities moderation analysis
Authors: Tlili Sabrine , Zoudji Bachir , Ben Mahfoudh Hatem
Published: February 2025

Objectives

Intending to facilitate learning from narrated tactical diagrams, this study investigates how drawing influences the memorization of soccer scenes given individuals’ visuospatial abilities (VSA).

Methods

Fifty-four male university students, all novices in soccer domain were randomly assigned to two groups. First group, without-drawing, viewed a pre-drawn diagram while listening to a concurrent oral explanation. Second group, with-drawing, listened to the same description while observing the coach simultaneously drawing the diagram. All participants conducted a control test to assess their VSA level and completed the main test, which included rating their overall mental effort and recalling/reconstructing the tactical scene.

Results

The principal results indicate an interaction between VSA and drawing: individuals with high-VSA particularly benefited better from the with-drawing condition, while those with low-VSA did not, thereby confirming the ability-as-enhancer hypothesis.

Conclusions

Overall, this study underscores the importance of aligning the choice of drawing formats with individual characteristics, especially VSA, to enhance memorization from narrated tactical diagrams.
Library Leadership in Minority Serving Institutions: Investigating the Backgrounds of MSI Library Directors
Authors: Lund Brady D.
Published: February 2025

This article reports the findings of a study of the educational backgrounds of library directors at Minority-Serving Institutions (MSIs) in the United States. Using a content analysis of MSI library websites and director/dean profiles, the leadership of 746 minority-serving institutions was identified including whether they have earned an American Library Association-accredited Master of Library and Information Science (MLIS) degree and from which library and information science (LIS) program it was earned. The study found that 83.8 % of MSI library directors held a MLIS degree though the percentage can vary dramatically based on MSI type, with only 50 % of Tribal College and University directors possessing this degree compared to 92.6 % of Historically Black College and University library directors. The LIS programs with the greatest number of MSI library director alumni are San Jose State University, the University of North Texas, and the University of Illinois, though the top programs for educating these MSI library directors also varies based on the MSI type. The findings of this study have implications for better understanding MSI libraries and the role of LIS programs in preparing future MSI library directors.
Dynamical wave structures for some diffusion--reaction equations with quadratic and quartic nonlinearities
Authors: Ahmed Nauman , Macías-Díaz Jorge E. , Ali Makhdoom , Jawaz Muhammad , Baber Muhammad Z. , Medina-Guevara María G.
Published: February 2025

This work investigates the quadratic and quartic nonlinear diffusion–reaction equations with nonlinear convective flux terms, which are investigated analytically. Diffusion–reaction equations have a wide range of applications in several scientific areas, such as chemistry, biology, and population dynamics of the species. The new extended direct algebraic method is applied to obtain abundant families of solitary wave solutions. Different types of solitary wave solutions are obtained by applying this analytical method. This approach provides the solutions in the form of single and combined wave structures, which are observed in shock, complex solitary-shock, shock-singular, and periodic-singular forms. Some of the solutions are depicted graphically to illustrate the fact that they are, indeed, wave solutions of the mathematical model.
Potential Analysis of Natural Stone Mining Activities in Mount Kuda on Environmental Quality as SDGs-Based Science Teaching Material
Authors: Sahrir Dede Cahyati , Rahayuningsih Margareta , Marianti Aditya
Published: February 2025

The Gunung Kuda mining area in the Cipanas Village area, Dukupuntang District, Kuningan Regency has the potential for natural resources as a type of C excavation mine with a limestone soil texture where the results are partly used as raw materials for cement, natural stone and ceramics. The aim of this research is to examine the impact of Gunung Kuda mining activities on environmental quality as a source of SDGs-based science learning. The research method used is descriptive qualitative. Data collection techniques were carried out using open interviews, field observations and literature reviews. The results obtained show that Mount Kuda mining activities have positive and negative impacts. The positive impact felt by the surrounding community is as a center of livelihood to stabilize the economy. However, there are also negative impacts in the form of decreasing the quality of the surrounding environment, such as the river in the Gunung Kuda mining area which is classified as moderately polluted, namely with a value of Plj 10.39; air pollution in the form of dust resulting from the breakdown of rocks; as well as reduced vegetation in mining areas. Efforts made by the management and surrounding communities to balance the environment in the mining area are by replanting trees that have been reduced due to the mining process with trees that are considered to have benefits such as mango trees, durian trees and sengon trees. The results of the analysis of the impact of Mount Kuda mining on environmental quality are suitable as a study in SDGs-based contextual science learning resources.
ПАРАЛЛЕЛЬНЫЙ АЛГОРИТМ ДЛЯ ПОЛУНЕЯВНОГО МЕТОДА ЧАСТИЦ В ЯЧЕЙКАХ С СОХРАНЕНИЕМ ЭНЕРГИИ И ЗАРЯДА
Authors: БЕРЕНДЕЕВ Е.А. , ТИМОФЕЕВ И.В.
Published: February 2025

Статья посвящена вопросам построения параллельного алгоритма для расчёта динамики плазмы методом частиц в ячейках с использованием полунеявной схемы, сохраняющей энергию и заряд. Данная схема представляет собой двухстадийный предиктор-корректор, где на этапе предсказания используется полунеявный метод Лапенты, в котором сохраняющий энергию линейный ток не удовлетворяет локальному закону Гаусса, а на этапе коррекции токи, электромагнитные поля и скорости частиц подправляются так, чтобы разностные законы сохранения энергии и заряда выполнялись точно. Этот подход оказывается эффективным для моделирования разномасштабных явлений с достаточно большим временным шагом, однако является ресурсоёмким, поскольку требует не только решения двух систем линейных уравнений за шаг, но и перестроения всей матрицы системы. Авторами разработан матрично-операторный алгоритм для программной реализации этой схемы, позволяющий эффективно распараллелить вычисления, а также использовать различные библиотеки для работы с матрицами и решателями систем линейных уравнений. Для построения матрицы использован алгоритм построчного хранения с поиском элементов через хэш-таблицу, что уменьшает объём используемой памяти, число синхронизаций потоков и позволяет существенно ускорить вычисления. Рассматриваемый алгоритм успешно применён в коде Beren3D.

Parallel algorithm for semi-implicit particle-in-cell method with energy and charge conservation The article is devoted to the construction of a parallel algorithm for calculating plasma dynamics by the particle-in-cell method using a semi-implicit scheme that conserves energy and charge. This scheme is a two-stage predictor-corrector, where at the prediction stage the semi-implicit Lapenta method is used, in which the energy-conserving linear current does not satisfy the local Gaussian law, and at the correction stage the currents, electromagnetic fields and particle velocities are corrected so that the difference laws of conservation of energy and charges were carried out accurately. This approach turns out to be effective for modeling multi-scale phenomena with a sufficiently large time step, however, it is resource-intensive, since it requires not only solving two systems of linear equations per step, but also rebuilding the entire matrix of the system. The authors have developed a matrix-operator algorithm for the software implementation of this scheme, which makes it possible to effectively parallelize calculations, as well as use various libraries for working with matrices and solvers for systems of linear equations. To construct the matrix, a row-by-row storage algorithm is used with searching for elements through a hash table, which reduces the amount of memory used, the number of thread synchronizations and can significantly speed up calculations. The algorithm in question has been successfully applied in the Beren3D code.
ЛИНЕЙНАЯ КОНЕЧНО-РАЗНОСТНАЯ СХЕМА ВТОРОГО ПОРЯДКА ДЛЯ УРАВНЕНИЯ АЛЛЕНА-КАНА ДЛЯ ОБЩЕГО СЛУЧАЯ КОЭФФИЦИЕНТА МОБИЛЬНОСТИ
Authors: ДУ Ц. , ХОУ Т.
Published: February 2025

В данной работе предлагается линейная конечно-разностная схема второго порядка для уравнения Аллена-Кана с общей положительной мобильностью. Для временной дискретизации используется схема Кранка-Николсона (КН) и формула Тейлора, а для пространственной аппроксимации - метод центральных конечных разностей. Обсуждаются дискретный принцип максимума (ПМ), дискретная энергетическая устойчивость и оценка ошибки в L∞-норме. Представлены некоторые численные примеры для проверки теоретических результатов.

In this paper, a linear second-order finite difference scheme is proposed for the Allen-Cahn equation with a general positive mobility. The Crank-Nicolson scheme and Taylor's formula are used for temporal discretization, and the central finite difference method is used for spatial approximation. The discrete maximum bound principle (MBP), the discrete energy stability and L∞-norm error estimation are discussed, respectively. Finally, some numerical examples are presented to verify our theoretical results.
АНАЛИЗ СХОДИМОСТИ КОНЕЧНО-РАЗНОСТНОГО МЕТОДА ДЛЯ ЗАДАЧ ДВУМЕРНЫХ ТЕЧЕНИЙ С ОДНОРОДНЫМ ПОЛНЫМ ТЕНЗОРОМ ПРОНИЦАЕМОСТИ
Authors: КИНФАК Д.А. , ДОНФАК Х. , САПНКЕН Ф.Е. , ТАМБА Д.Г.
Published: February 2025

Мы представляем анализ сходимости метода конечных разностей для решения на четырехугольных сетках задач двумерных течений в однородных пористых средах с полным тензором проницаемости. Мы начинаем с вывода дискретной задачи, используя нашу конечно-разностную формулу для смешанной производной второго порядка. Результат существования и единственности решения этой задачи получается благодаря положительной определенности соответствующей матрицы. Исследуются их теоретические свойства, а именно, устойчивость (с соответствующей дискретной энергетической нормой) и оценки ошибки (с L2-нормой, относительной L2-нормой и L∞-нормой). Представлены численные расчеты.

We present in this work a convergence analysis of a Finite Difference method for solving on quadrilateral meshes 2D-flow problems in homogeneous porous media with a full permeability tensor. We start with the derivation of the discrete problem by using our finite difference formula for a mixed derivative of second order. A result of existence and uniqueness of the solution for that problem is given via the positive definiteness of its associated matrix. Their theoretical properties, namely, stability on the one hand (with the associated discrete energy norm) and error estimates (with L2-norm, relative L2-norm and L∞-norm ) are investigated. Numerical simulations are shown.
ЧИСЛЕННОЕ РЕШЕНИЕ ЗАДАЧИ О ГИДРОУДАРЕ НА ОСНОВЕ МЕТОДА НАИМЕНЬШИХ КВАДРАТОВ С НОВОЙ МЕТОДИКОЙ АДАПТИВНОГО УТОЧНЕНИЯ
Authors: ЛАШКАРБОЛОК М.
Published: February 2025

Представлены результаты применения численного метода для решения одномерных гиперболических уравнений. Эти уравнения моделируют динамику жидкости в трубе с меняющимся поперечным сечением. Уравнения записаны в терминах напора и расхода. Для численного моделирования используются радиальные базисные функции и оптимизация методом наименьших квадратов. Этот численный метод предназначен для работы с произвольным распределением узлов в области задачи. Основы применения численного метода были изложены в нашей предыдущей работе. В данной работе мы скорректировали применявшиеся ранее методы, отказались от использования временно-маршевого подхода и использовали метод адаптивного уточнения. Описаны три случая моделирования системы резервуар-труба-клапан, показывающие, что модель воспроизводит четкий градиент времени.

The manuscript presents the results of an application of a numerical method to solve one-dimensional hyperbolic equations. These equations simulate the dynamics of a liquid in a pipe with varying cross-sections. The equations are written in terms of pressure-head and discharge. Radial-basis functions and least-squares optimization are used for the numerical simulation. This numerical method is specialized for working with arbitrary nodal distribution in the problem domain. The basics of the application of the numerical method were introduced in our previous work. In the current work, we updated previously applied methods by means of getting rid of the time-marching approach and applying another adaptive refinement technique. Three cases of the simulations of the reservoir-pipe-valve system are described, indicating that the sharp time-gradient phenomenon is reproduced by the model.
АНАЛИЗ ВЫСОКОЙ ТОЧНОСТИ ПРИВЕДЕННОГО ЭЛЕМЕНТА АДИНИ-СТОКСА ДЛЯ МОДЕЛИ БРИНКМАНА
Authors: ЧЖОУ С.
Published: February 2025

В данной работе выполняется анализ высокой точности метода приведенного элемента Адини-Стокса, разработанного в [7], для модели Бринкмана. Мы показываем, что этот метод равномерно сходится с точностью порядка O(h2) для скорости в норме, зависящей от сетки и параметров, на общих квазиоднородных прямоугольных сетках. Также предлагается соответствующий метод постобработки для повышения точности для давления. Численные примеры подтверждают нашу теорию.

This work provides a high accuracy analysis of the reduced Adini Stokes element method developed in [7] for the Brinkman model. We show that this method is uniformly convergent for the velocity with convergence order O(h2) in a mesh- and parameter-dependent norm over general quasi-uniform rectangular meshes. A proper postprocessing technique is also proposed to improve the precision of the pressure. Numerical examples confirm our theory.
‘Digitality For Future’? – The Potential of Digital Practices for Transformative Education in the Area of Climate Change
Authors: Dorsch Christian
Published: February 2025

The Fridays For Future movement brought the issue of climate crisis an enormous boost in public awareness and generated great interest in climate-related topics among students. The particular way in which issues of climate protection or climate adaptation are negotiated by social media communities ensures their appeal. Two questions arise from this: Which digital practices do activists of Fridays For Future use to disseminate knowledge on climate and climate change? How do these practices affect informal learning processes in the knowledge domain of climate and climate change? Results obtained from a qualitative content analysis of posts and documents created by members of digital communities of the Fridays For Future movement and interviews with activists show that processes of identity formation take place in the communities. If these knowledge practices are taken up and reflected upon in the classroom, they can be transferred to formal educational processes, in terms also of transformative learning.
Embedding Geomedia as Innovation in the Classroom: A Theory-based Discussion of Innovation Discourse in Educational Systems
Authors: Grey Jan , Jekel Thomas
Published: February 2025

Soon after the introduction of Geoinformation (systems) in the 1990s and the first use of geomedia in schools which followed, a host of studies evaluated the adoption of the new technologies at school level. These studies were largely exploratory and descriptive and, even 30 years after its first introduction, came to the conclusion that the use of geomedia in schools was still not widespread. However, an organizational perspective was missing from these studies, as well as analysis of the factors influencing the diffusion of GIS and geomedia.
This paper examines the organizational approaches taken in recent research on digitalization in primary schools and the corresponding teacher training, and looks at questions of diffusion. We attempt to identify the more recent results that seem to make sense of the earlier ones.
Two questions in particular are examined in this paper: To what extent can geomedia be understood as innovation? To what extent are geomedia embedded in schools? We also discuss opportunities for the systematic embedding of geomedia in school education.
Santo Tomás DE AQUINO, Comentario al libro «Sobre los nombres divinos» de Dionisio. Edición bilingüe. Edición al cuidado de Enrique Martínez y Lucas Prieto. Traducción de Alessandro Mini. Estudios preliminares de Martín F. Echavarría e Ignacio Andereggen, Pamplona: EUNSA (Colección «Pensamiento Medieval y Renacentista», 9), 2023, 855 pp., 17 x 24, ISBN 978-84-313-3885-5.
Authors: Bistué Blanca
Published: February 2025

Book Review
Santiago GUIJARRO, Metodología exegética del Nuevo Testamento, Salamanca: Sígueme («Biblioteca de Estudios Bíblicos», 166), 2021, 270 pp., 13,5 x 21, ISBN 978-84-301-2105-2.
Authors: Chapa Juan
Published: February 2025

Book Review
Adrien CANDIARD, La libertad cristiana. De Pablo a Filemón, trad. Aníbal Díaz Gallinal, Madrid: Encuentro, 2022, 111 pp., 13,5 x 19, ISBN 978-84-1339-091-8.
Authors: Buch Lucas
Published: February 2025

Book Review
César IZQUIERDO, La risa de Sara. Ensayos cristianos, Madrid: BAC («Estudios y ensayos»), 2024, XIV+204 pp., 14 x 21, ISBN 978-84-220-2321-0.
Authors: Switek Mateusz
Published: February 2025

Book Review
Wybrane „wpadki” Krajowej Administracji Skarbowej
Authors: Nowak Ireneusz
Published: February 2025

Zaprezentowane w opracowaniu wybrane problemy związane z funkcjonowaniem Krajowej Administracji Skarbowej są wypadkową wielu negatywnych następstw, w tym przede wszystkim kadrowych, powstałych po quasi-reformie administracji danin publicznoprawnych. Niestety, nieudana „reforma” pt. Krajowa Administracja Skarbowa wywołała i pomimo upływu 7 lat cały czas powoduje różnego rodzaju destrukcje, które nolens volens przekładają się na liczne błędy, zarówno organizacyjne, zarządcze, jak i orzecznicze organów administracji podatkowej.
Problematyka inteligentnych kontraktów. Wybrane aspekty technologii blockchain
Authors: Parzygnat Patrycja
Published: February 2025

Technologia blockchain znajduje obecnie szerokie zastosowanie w różnych sektorach gospodarki, takich jak przemysł, finanse i medycyna, oferując transparentne zarządzanie danymi. W Polsce, mimo rosnącego znaczenia tej technologii, wciąż brakuje odpowiednich regulacji prawnych. Artykuł analizuje istniejące przepisy oraz potrzebę wprowadzenia zmian w celu dostosowania przepisów do dynamicznego rozwoju technologii i zapewnienia konkurencyjności przepisów na tle Unii Europejskiej.
O sistema tributário: diagnóstico e reforma
Authors: SERRA JOSÉ
Published: February 2025

RESUMO O sistema tributário brasileiro precisa de uma reforma profunda. São pelo menos cinco os principais pontos que conduzem a este processo de renovação: i) a insuficiência de receitas fiscais; ii) a natureza regressiva do sistema; iii) a elevada centralização da arrecadação tributária; iv) regressividade também no contexto regional; v) desorganização dos incentivos fiscais. Este artigo analisa cada um desses pontos e discute as formas como a reforma poderia ocorrer.
Recessão e renegociação
Authors: MALAN PEDRO SAMPAIO
Published: February 2025

RESUMO Nesta breve nota discutimos a dívida externa do Brasil a partir do segundo semestre de 1982, com ênfase no problema da oportunidade e nas implicações de uma eventual renegociação.
A crise financeira internacional: condições e implicações
Authors: LICHTENSZTEJN SAMUEL
Published: February 2025

RESUMO O conceito clássico de crise financeira é comparado com as características da crise atual, apontando seus diferentes aspectos. A análise centra-se na dívida externa e nas condições da sua continuidade, na ligação entre o rumo da crise e a política interna e a situação financeira internacional e a sua própria crise. No que diz respeito à América Latina, depois de analisar as características específicas de algumas das mais importantes economias nacionais, discutem-se as possibilidades e vantagens de uma renegociação conjunta da dívida. Esta é uma alternativa que exige um certo grau de audácia que na verdade corresponde à audácia do capital financeiro internacional na sua resposta a uma eventual crise.
Agricultura, energia e recessão econômica
Authors: MELLO FERNANDO HOMEM DE
Published: February 2025

RESUMO Este artigo revisou a agricultura brasileira no contexto de uma maior “prioridade” para a produção de alimentos, produtos exportáveis e energéticos, bem como da recessão econômica a partir de 1981. Indicámos que a recessão teve um papel fundamental na diminuição da procura de alimentos, ao mesmo tempo que contribuiu para uma forte descida dos preços reais. Isto parece ser importante em termos de metas de produção de culturas energéticas, de políticas cambiais e comerciais e de uma possível recuperação da economia mundial. Além disso, os efeitos negativos da expansão das culturas energéticas sobre a produção de alimentos constituem um dos problemas distributivos do programa energético brasileiro.
Salários: uma possível alternativa de compromisso
Authors: SOUZA PAULO RENATO
Published: February 2025

RESUMO Este artigo trata do debate político sobre a legislação salarial brasileira durante o segundo semestre de 1983. Explora as razões por trás das propostas baseadas na indexação integral de preços, mas sugere que medidas que mantenham o nível dos salários médios reais durante os períodos de reajuste salarial são um primeiro passo realista em uma política voltada para a recuperação dos salários reais em um ambiente não recessivo. O artigo discute alguns mecanismos de manutenção do salário médio real, incluindo uma escala móvel de reajustes não baseada em períodos fixos de reajuste. Medidas complementares que lidam com controle de preços e políticas macroeconômicas mais amplas são discutidas no fechamento.
Um programa de estabilização no Brasil
Authors: DORNBUSCH RUDIGER
Published: February 2025

RESUMO Este artigo é uma análise das causas e perspectivas da atual crise econômica do Brasil, com atenção especial ao programa de estabilização que faz parte do acordo com o FMI.
A imprevidência da previdência
Authors: REZENDE FERNANDO
Published: February 2025

RESUMO Existem duas abordagens principais para a análise da atual crise financeira do sistema previdenciário. Para alguns, a crise tem raízes estruturais, já que a diferença entre pagamento de benefícios e contribuições sobre a folha de pagamento tende a aumentar na ausência de uma reforma profunda no sistema. Para outros, a explicação é ainda de natureza conjuntural, pois as políticas recessivas têm efeitos opostos nas duas faces do orçamento da segurança social: receitas mais baixas não podem corresponder a despesas crescentes numa situação em que as prestações estão totalmente indexadas. O artigo analisa os principais argumentos dessas duas versões, bem como explicações adicionais que se referem a uma liberalização prematura dos benefícios e à falta de uma política financeira sólida no passado, que não permitia o acúmulo de reservas para enfrentar períodos de dificuldade. Analisam-se, então, as principais proposições decorrentes das distintas interpretações da crise, com ênfase nos efeitos redistributivos do corte de benefícios e/ou alteração da base financeira. O trabalho termina argumentando que, antes de entrar na discussão de medidas específicas para solucionar a crise, será necessário avaliar o grau de proteção oferecido a distintos grupos sociais por meio do sistema previdenciário.
Ensaio sobre a atualidade da lei do valor
Authors: PAULA JOÃO ANTÔNIO DE
Published: February 2025

RESUMO Em que sentido é possível admitir a adequação e relevância da teoria do valor nos dias de hoje? Este é o assunto deste ensaio; um resultado do meu pensamento sobre a aplicabilidade da teoria marxista do valor nos dias atuais. Em primeiro lugar, este ensaio pretende situar o lugar, o território onde reina o valor e onde as suas leis e dinâmicas são plenamente eficazes. Colocar os limites da teoria do valor, entretanto, significa identificar o que ela não consegue explicar e o que não busca explicar; o que está fora de seu alcance. Em segundo lugar, pretende também discutir o significado da teoria do valor no capitalismo atual: o capitalismo dos oligopólios, o capitalismo onde o Estado intervém fortemente na economia, o capitalismo de preços administrados etc. de valor é abalado, mas não abolido; que sua ausência e silêncio são igualmente significativos; e que há algo como um silêncio clamoroso da teoria do valor afetando profundamente o capitalismo atual.
Enzyme activity and morphological changes in corn hybrids inoculated with Azospirillum brasilense via seed treatment and leaf
Authors: Müller T. M. , Tabaldi L. A. , Fipke G. M. , Cunha V. S. , Ribeiro L. P. , Martin T. N.
Published: February 2025

Abstract Plants possess a defense system for minimizing the stresses caused by nutrient deficiencies. The objective of this study was to evaluate the enzymatic and morphological changes in corn hybrids inoculated with Azospirillum brasilense. The experiment was set up in a completely randomized design comprising six corn hybrids inoculated with A. brasilense via a seed treatment and a leaf application during the V2 stage. The following hybrids were used: AG9045, AG8025, AG2040, Feroz, BG7051, and BG7060. The biochemical variables were lipid peroxidation, the activity of the superoxide dismutase, guaiacol peroxidase, and nitrate reductase (NR) enzymes and the level of total chlorophyll and carotenoids. Were analyzed in the shoots and in the roots, along with the following morphological variables: the leaf area (LA); shoot dry weight; and the length, projected area, surface area, diameter, volume, number of branches, and dry weight of roots. For the shoots, the greatest activity of SOD occurred in BG7060 when A. brasilense was applied during the V2 stage, which prevented damage to the membrane lipids. The NR activity of the shoots was greater for the control than for the bacterial treatments, with the presence of the bacterium reducing the activity of this enzyme. The bacterium showed efficiency for the variables root projected area and surface area in the AG8025 and AG2040 hybrids. Thus, the hybrids behave differently in the presence of the bacterium, which positively affects the activity of the antioxidant enzymes and increases the root system and LA of the plants.
Important factors for brand valuation
Authors: Amini E. , Zeraatkish S. Y. , Mohammadinejad A.
Published: February 2025

Abstract The present article examines important factors in brand valuation, with a focus on agricultural products in Iran. This article emphasizes the importance of differentiation and branding as tools for gaining a competitive advantage and discusses the role of brand names in guaranteeing quality and encouraging customers to buy products. Brand value is known as one of the key factors in business success, and various models have been introduced to measure this value from the consumer’s point of view. The descriptive-survey and comparative research methods were done based on the approaches of operating profit, market, capital expenditures, branding expenditures, and KPMG frameworks, using customer-oriented and organization-oriented approaches as well as behavioral science. The goal of this approach was to understand the financial value and strength of the brand over time and in comparison to competitors in order to guide branding strategies. The necessity of research, the mutual influence of the brand, and the main drivers of the company’s value have been investigated, and the advantages of having a strong brand, such as less price sensitivity, increased customer loyalty, and pricing power, have been discussed. Also, the positive relationship between brand value, profitability, and stock performance of companies has been shown through various studies. Emphasizing that brands have become an integral part of everyday life and the economy, the article describes the key methods of valuation. At the end, we came to the comparison of two companies with the said methods.
ESTUDOS SOBRE VARIABILIDADE CULTURAL DE ALGUNS ISOLADOS DE FUSARIUM SPP.
Authors: Pimentel Cybelle P. Vaz , Feitosa Maria I. , Chiba Soyako
Published: February 2025

RESUMO As variações morfológicas e fisiológicas observadas em culturas de Fusarium spp., mantidas por vários anos na Micoteca da Seção de Micologia Fitopatológica do Instituto Biológico de São Paulo, motivaram a realização de estudos sobre a influência de diferentes fontes de carbono e temperaturas no crescimento do talo miceliano, aspecto e coloração do micélio e capacidade de produção de esporos de culturas das seguintes espécies: Fusarium oxysporum Schl.f.lycopersici (Sacc.) Snyd. et Hn., Fusarium graminearum Schwabe, Fusarium sambucinum Feckl. e Fusarium solani Appel et Wr.f.dianthi Snyd. et Hn.
DETERMINATION OF PHOSPHINE FUMIGANT BY SILVER NITRATE
Authors: Souza D.A. , Piedade J.R. , Almeida J.B. de , L.T. Vera
Published: February 2025

SUMMARY Two methods for phosphine determination in pellets and tablets are described. They are based on the stoichiometric reaction of phosphine with silver nitrate; this reaction is by the first time established. In the first method the apparatus is very simple, mounted only with erlenmeyer and Soxhlet thimble. In the second method the apparatus is not simple, mounted with separatory funnel, distilling flask and trap flasks.
AÇÃO DOS QUIMIOTERÁPICOS ANTIVIRAIS NO CONTROLE DO VÍRUS DO MOSAICO DOURADO DO FEIJOEIRO, EM PHASEOLUS LUNATUS L.
Authors: Caner J. , Fazio Gilda De , Alexandre M. Amélia Vaz , Kudamatsu Massae , Vicente Marly
Published: February 2025

RESUMO Quinze quirnioterápicos, das mais diversas origens, foram experimentados no controle do vírus do mosaico dourado do feijoeiro (BGMV) em condições de casa-de-vegetação. Soluções aquosas dos produtos foram pulverizadas, uma única vez, sobre a parte aérea de feijoeiros (Phaseolus lunatus), antes da inoculação, com exceção do Carbendazirn, cuja suspensão foi aplicada duas vezes, em forma de rega. A inoculação foi feita usando-se colônias virulíferas do vetor Bemisia tabaci Genn. Pelos resultados, observou-se que foi possível retardar o aparecimento de sintomas do BGMV, até 15 dias após a inoculação, aplicando os seguintes quimioterápicos: Ácido poliacn1ico, Acyclovir, Aspirina, Distamicina A, EHNA, Foscamet e Pyrazino-pyrazine. Aos 30 dias após a inoculação, esse efeito diminuiu bastante, tornando-se nulo na maioria dos casos. Acyclovir, Aspirina e EHNA mantiveram o efeito inibidor até 30 dias após a inoculaça:o. Concluiu-se que algumas das substâncias, capazes de atrasar a evoluça:o do BGMV, podem apresentar interesse em fitovirologia, pois o efeito desse vírus é muito mais grave quando atinge plantas jovens.
EFEITO DA TEMPERATURA, TEMPO DE ARMAZENAGEM E DO TIPO DE PREPARO, SOBRE O PODER GERMINATIVO DE ESPOROS DE METARHIZIUM ANISOPLIAE (METSCH.) SOROKIN, CULTIVADO EM ARROZ
Authors: Cruz B.P. , Abreu O.C. , Valarini P.J. , Oliveira D.A.
Published: February 2025

RESUMO O estudo foi efetuado com o objetivo de determinar a viabilidade de esporos de Metarhizium anisopliae, cultivado em meio de cultura de arroz, obtidos por trés técnicas diferentes de preparo e armazenados sob trés temperaturas distintas. Os tipos de preparo do fungo foram: "arroz + esporos" (matéria-prima), "arroz + esporos" mofdo e "esporos". As temperaturas usadas para armazenamento foram: ambiente ente 26°C e 30°C, 5°C e -13 °C. As determinagöes do poder germinativo dos confdios foram feitas em 8 amostras com diferentes perfodos de secagem (umidade), que, em seguida, foram estocadas por 2 a 8 meses nas condiG6es de temperatura referidas. O estudo obedeceu critérios estatfsticos definidos. Entre as informagöes obtidas no tabalho, salienta-se o fato de que, sob condigOes de refrigeraqåo, a viabilidade dos confdios na formulacåo "arroz + esporos" permaneceu constante durante todo o transcorrer do ensaio, o que näo aconteceu para "arroz + esporos" mofdo e para "esporos". Constatou-se, ainda, que dentro dos tratamentos "arroz + esporos" e "esporos", a viabilidade dos confdios foi idéntica, a 5 °C e -13°C. Em condig6es de ambiente houve råpida deterioraqåo das amostras. Complementarmente, foi observado que a manipulaqåo do microrganismo, ocasionada pelas operaqOes de e peneiragem, determinou quedas na viabilidade dos esporos. Contaminaqöes constitufdas pela presenga dos fungos Penicillium spp. e Aspergillus flavus foram paralisadas pela armazenagem a 5 °C e -13 °C, mas afetaram seriamente as amostras estocadas em ambiente comum de laborat6rio. Tempo de secagem do fungo e teor de umidade das amostras foram também estudados, sem que fosse possfvel esclarecer devidamente os efeitos.