bluuebunny/crossref_metadata_2025 huggingface dataset:
Estrategias didácticas: sus relaciones con la evaluación
Authors: Cárdenas Salgado Enrique , Perilla Ruiz Lucila
Published: November 2023

El interior de este artículo se presenta a manera de síntesis, algunas estrategias que el docente puede utilizar con fines didácticos en su acción pedagógica y se esboza rápidamente una concepción de didáctica y de pedagogía; también se presentan como conclusión los niveles de relación que el hombre establece con el conocimiento, uno superficial y otro más profundo y de sus relaciones significativas, así mismo se hace una aproximación del proceso de evaluación de estos niveles de relación con el conocimiento y la posibilidad de utilizar algunas de esas estrategias para tal propósito. Se invita a los docentes para que lleven a la acción estas ideas y las pongan en práctica en el aula. En particular se espera que cada uno de actores del contexto educativo reflexione a partir de ellas, sobre su quehacer diario para que en la medida de sus intereses y necesidades acoja y aplique aquello que a su juicio le sean pertinentes.
El desarrollo: aportes y aproximaciones desde la psicología
Authors: Rodríguez Páez Elsa Ruth
Published: November 2023

El presente artículo es el resultado de una revisión histórica de la psicología y de la imbricación del concepto desarrollo en la construcción social de la psicología como disciplina científica, en el cual se apoya el discurso moderno, se puede tomar como punto de partida a partir del cual se definen las políticas socioeconómicas. Se organiza en tres momentos; el primero da cuenta de la historia de la psicología como ciencia, un segundo momento aborda el concepto de desarrollo desde la psicología y un tercer momento pone en diálogo a la psicología, como ciencia social, con el concepto de desarrollo en el ámbito socioeconómico.
La crisis contemporánea del matrimonio y las desdichas del amor
Authors: López Vergara Fernando Aquiles
Published: November 2023

Este artículo es una reflexión que permite interpelarnos a través de una revisión literaria y su abordaje desde la mitología, desde los paradigmas del amor-pasión y el matrimonio; aun en su incompatibilidad. Aborda dos aspectos: el primero indaga sobre la legitimación de un discurso que intenta a través de la limitación, la domesticación del goce en un contexto socio cultural y su fracaso en el intento, el cual se manifiesta en el síntoma. El segundo alude al reconocimiento del poder de las estructuras subjetivas como elementos determinantes en la complejidad de la vida sexual y amorosa del individuo en el marco de la institución matrimonial.
Asociatividad y competitividad exportadora en el sector de las flores exóticas en el departamento del Meta
Authors: Arcila Galvis Diana Marcela , Gómez Alonso Diana Lorena , Rubio Díaz Laura Vanessa , Padilla Guerrero Nancy Sofía
Published: November 2023

Nuestro Departamento tiene una gran proyección gracias a las ventajas que le proporciona su posición geoestratégica, sin embargo es necesaria la implementación de mecanismos de cooperación para lograr la competitividad en el exigente mercado de las flores. Porter define la competitividad como la producción de bienes y servicios de mayor calidad y menor precio para los competidores domésticos e internacionales que se traducen en crecientes beneficios para los habitantes de una nación al mantener y aumentar los ingresos reales.
Estudio de factibilidad para producción de carne a partir de mini angus bajo un sistema de semiestabulación en Villavicencio, Meta
Authors: Cabra Ramírez David Orlando
Published: November 2023

El presente artículo busca comunicar los resultados obtenidosal determinar la factibilidad de diseñar un sistema para laproducción de carne tipo exportación a partir de la mini raza deganado Angus en el departamento del Meta. Para esto se hacenecesario observar brevemente cinco elementos: los sistemas deproducción cárnica bovina de países suramericanos potencia enel sector como lo son Argentina, Brasil y Uruguay, identificaciónde los principales aspectos socioeconómicos del mercado cárnicoa nivel local, descripción de las principales características delganado Mini Angus y la carne que puede ser obtenida medianteel aprovechamiento de la raza, descripción de algunos aspectosorganizacionales requeridos para la implementación de otrotipo de explotación ganadera como lo es el de semiestabulacióny, finalmente, mediante el correspondiente análisis financiero,determinación de la viabilidad del sistema de producción decarne a partir de este tipo de ganado.
Cine y filosofía: pensar la ética de las virtudes en Blue Jasmine
Authors: Ballén Rodríguez Juan Sebastián
Published: November 2023

Reseña de BLUE JASMINE, 2013, ESTADOS UNIDOS WOODY ALLEN (DIR.)
Para contener a las clases peligrosas: la chicha, las élites y el “progreso”
Authors: Vallejo Castro María Alejandra
Published: November 2023

Este artículo constituye la versión abreviada de una investigaciónque analiza críticamente el discurso de la élite intelectual de losaños veinte en Colombia respecto del chichismo, a partir de loanunciado en publicaciones y conferencias de tres personajesmédicos influyentes en la medicina y la política durante laprimera mitad del siglo XX. Las siguientes preguntas orientaronla investigación: ¿cuáles fueron las condiciones de producción deldiscurso que definió el “chichismo” en la historia de Colombia?,y, por otro lado, ¿cómo las posturas adoptadas por la clasedominante del país construyeron un imaginario de lo “popular”asociado al crimen y a la barbarie?
La administración pública imperial. Notas sobre el gobierno de Maximiliano de Habsburgo
Authors: Torres Alonso Eduardo
Published: November 2023

El Segundo Imperio Mexicano fue organizado de forma extraordinariamente detallada como se constata al revisar la legislación aprobada por Maximiliano de Habsburgo. No existieron espacios para la creatividad irresponsable o la ingenuidad, sino que, por el contrario, la racionalidad y la búsqueda de la eficiencia son la constante en los documentos normativos de la administración de los asuntos públicos.
Sammer Hinduja y Justin W. Patchin. Ciberacoso y suicidio
Authors: Herreño Contreras Yomaira Angélica , Huertas Torres Jhonathan Alexander
Published: November 2023

Este artículo presenta los resultados preliminares de un estudio sobre acoso cibernético y suicidio desarrollado en un populoso distrito escolar de los Estados Unidos. El estudio fue realizado por el Centro de Investigación en Acoso Cibernético y pretendió establecer los posibles vínculos entre la ideación suicida, el suicidio evidenciado en la población comprendida entre 10 y 19 años y la intimidación cibernética. Como resultado, se relacionan y caracterizan las principales formas de victimización y agresión inherentes a la intimidación cibernética. Además, se presentan estadísticamente aspectos como la tentativa de suicidio, las tasas de suicidio y el grado de incidencia de la intimidación cibernética en los pensamientos y comportamientos suicidas manifestados en la población muestra del estudio. Aunque la intimidación cibernética influye notablemente en el desarrollo de factores desencadenantes de actitudes suicidas como depresión, baja autoestima e inestabilidad, el estudio expresa la existencia de otros aspectos sociales y emocionales que pueden inducir a este tipo de conductas y reacciones.
Reflexiones desde el modelo sociocrítico y la enseñanza de la historia en la universidad La Gran Colombia
Authors: Cruz Osma Sandra Milena
Published: November 2023

El presente artículo reflexiona acerca de los postulados del modelo sociocrítico de la Universidad La Gran Colombia y su relación con la enseñanza de la historia en las licenciaturas de Ciencias Sociales y Filosofía de la Facultad de Ciencias de la Educación.
El estudio de la prensa y la literatura en Colombia. Un acercamiento a Chanchito: revista ilustrada para niños
Authors: Sánchez Medina Karen
Published: November 2023

En el siguiente texto analizaré una revista colombiana de carácter literario, Chanchito: revista ilustrada para niños (1933-1934) con el objetivo de demostrar que allí se formulaba un proyecto nacional ilustrado dirigido a los niños colombianos, cuyos valores fueron heredados de la tradición española y academicista característica del siglo XIX y de la época de la Regeneración. 

Así bien, este estudio sugiere la importancia de los periódicos y revistas como objetos de estudio pertinentes a la hora de entender la historiografía colombiana, así como de la relevancia del archivo y de sus prácticas para ciertas investigaciones y análisis recientes propios de los estudios literarios.
Tabaquería, la palabra pensativa. Poema atribuido a Álvaro de Campos
Authors: Tacuma Ricardo
Published: November 2023

Álvaro de Campos es el heterónimo más conocido y difundido del escritor Fernando Pessoa, su obra irreverente y revolucionaria no es un producto del azar, sino que tiene en su base un sustento teórico, ideológico y político que juega un papel importante para el Drama en gente y, aparte de que actualmente tenga repercusiones que sorprenden al exégeta, es quizá el proyecto más ambicioso de Pessoa. El presente artículo es entonces un análisis del poema “Tabaquería” de Campos, a la luz del concepto pessoano de “Drama en gente”, la heteronimia y el problema estético de la poesía de Campos, para lo cual el siguiente texto se divide en tres estancias que son: introducción y presentación del poeta portugués, la definición del proyecto Drama en gente y el rol de Álvaro de Campos dentro de este universo, y una interpretación sensacionista de “Tabaquería”.
El texto como don. Gn 3, 1-730
Authors: Valenzuela Osorio Vicente
Published: November 2023

Una teoría general del texto puede ayudar a pensar aquella condición de posibilidad del texto mismo y de cuanto se da en él. Lo que se da en la textualidad es la acción humana (acción de un actor, del texto mismo y su mundo y del lector-intérprete). Pero el texto también es susceptible de componer la acción divina (entra al discurso por medio de elementos semánticos, metafóricos y simbólicos). Una narrativa paradigmática puede ser Gn 3, 1-7. Ella es susceptible de una lectura simbólica de su lenguaje en perspectiva de la experiencia de donación en el texto.
Bullying, acoso escolar. Definición, prevalencia y propuestas de actuación
Authors: Urra Canales Miguel , Reyes Torres Francisco
Published: November 2023

A través de más de 100 referencias bibliográficas, de distintos países y en distintos idiomas, este artículo pretende 1) clarificar la definición de bullying y de acoso escolar; 2) abordar los roles que tienen lugar en el mismo (acosado, acosador, grupo de iguales, escuela, familia y sociedad/políticos/medios de comunicación); 3) presentar datos de la prevalencia del acoso escolar en distintos países y en distintos entornos culturales y, por último, 4) ofrecer un resumen de las propuestas de actuación generales en las que parecen coincidir todos los expertos sobre el tema.
Facebook como plataforma de participación e integración de los inmigrantes venezolanos
Authors: Flores Irama
Published: November 2023

El estudio analizó conversaciones de dos grupos de Facebook: venezolanos en Colombia y venezolanos en Chile 2.0, para conocer el tipo de participación en los grupos conformados, así como la interacción dialógica. Para la metodología se optó por el método etnográfico digital o Ciberetnografía, el cual según Hine (2000)  y  Mosquera (2008) es ideal para iniciar estudios utilizando internet, porque permite entablar la relación entre tecnología y la cotidianidad de las personas en los entornos virtuales, generando una cultura entre cibernautas localizados en un espacio no físico y no atados a un tiempo cronológico. Se concluyó que Facebook contribuye con la participación e integración de los inmigrantes venezolanos; sin embargo, se trata de grupos públicos, con diálogos bilaterales y una participación que se queda en el Tener Parte
La pragmática y la hermenéutica como enfoques contemporáneos para una interpretación, práctica y experiencia de los derechos humanos
Authors: Norato Vanegas Iván David
Published: November 2023

El presente artículo es un intento de aproximación hermenéutica y pragmática a las dificultades que presentan los derechos humanos en su ejercicio y puesta en práctica por parte del ser humano individual y colectivo en países tan violentos como Colombia, aunque también se espera que permee el sentido global de la relación Estado-derechos humanos-individuo en el debate actual sobre la dignidad humana en perspectiva humana y filosófica. Este fenómeno se explica por las incoherencias entre los postulados generales del Estado, su función constitucional amplia y las violencias que se ejercen contra los derechos de los individuos como nunca antes en el Estado social de derecho; un hecho que tiene lugar puesto que antes, durante y hoy, a casi treinta años de proclamada la Constitución Política de Colombia en 1991, base jurídica de los derechos humanos en Colombia, parece que siguen siendo letra muerta. Por lo tanto, la realidad del ejercicio de los derechos humanos será el objeto del presente discurso para reflexionar acerca de las posibles vías de comprensión de los fenómenos asociados a los derechos humanos y los hechos que determinan las dificultades para ejercerlos de manera, al menos, civil.
Perros platónicos. Una lectura de la imagen del perro en la República
Authors: Urrego Lozano Francisco Javier , Rivera Juan Felipe
Published: November 2023

La República, de Platón, está construida alrededor de múltiples imágenes e incluso en torno al problema mis­mo de la imagen. En este artículo, quisiéramos rastrear el problema de la imagen del perro y de su contraparte salvaje, el lobo, a lo largo de esta obra. El perro juega un papel fundamental al pensar otro de los problemas centrales de la obra: la educación. Para ello, indagare­mos primero acerca de la función antropológica del pe­rro en la antigüedad para después rastrear su relevancia dentro de la República.
Ken Bugul’s Language: Its Formation and Characteristics
Authors: Sacharewicz Edyta
Published: November 2023

The aim of this article is to analyse Ken Bugul’s written language and its specificities. This Senegalese writer, like most French-speaking authors, has had to define her own written language, which becomes a mixture of French, the language of the coloniser, and Wolof, her mother tongue. The author of this article also draws attention to three experiences in Bugul’s personal life that have influenced her literary language, called by Christian Ahihou “la langue bugulienne”.
The African writer between two languages: reflections of a toubab
Authors: Kalinowska Ewa
Published: November 2023

The choice of language for literary creation is not a simple one, especially for African writers. Having grown up in a naturally multilingual environment and exposed to European languages, they often express themselves in the language of former colonizers. However, this is neither obvious nor should it remain a definitive choice for authors from various African countries. We will present different motivations, attitudes, and decisions of several writers; from the most radical, rejecting the European language, to others who hold onto it – either exclusively or accompanied by African languages.
Синтез насичених нітрогеновмісних гетероциклічних сульфінатів
Authors: Анхім М.О. , Андріашвілі В.А. , Жерш С.А. , Толмачов А.О. , Григоренко О.О.
Published: November 2023

Запропоновано препаративний підхід до синтезу низки нових насичених нітрогеновмісних гетероциклічних сульфінатів — перспективних біфункціональних будівельних блоків для потреб органічної та медичної хімії. Метод ґрунтується на використанні як вихідних речовин N-Boc-захищених гетероциклічних аміноспиртів і передбачає їх перетворення на тіопіримідильні похідні, подальше окиснення та основне розщеплення утворених сульфонів. Для кожної із стадій проведено оптимізацію умов перебігу процесу з огляду на необхідність одержання багатограмових кількостей цільових сполук. Після незначної модифікації підхід виявився придатним для синтезу оптично чистих сполук. Перспективи використання синтезованих сульфінатів продемонстровано їх перетворенням на відповідні сульфонамідні похідні.
Ферментативна кінетична дерацемізація фторовмісних 3-арилалканових кислот
Authors: Колодяжна А.О. , Фаізієв О. , Колодяжний О.І.
Published: November 2023

Енантіомерно чисті фторовмісні 3-арилалканові кислоти отримано ферментативним гідролізом рацемічних естерів цих кислот. Оптимізацію процесу дерацемізації було досягнуто підбором біокаталізаторів, ацилювальних реагентів, розчинників, температури. Також було досліджено вплив умов процесу дерацемізації на ефективність і енантіоселективність біокаталітичного розділення. В результаті були одержані фторовмісні 3-арилалканові кислоти, що мають (S)- та (R)-абсолютну конфігурацію, високої стереохімічної чистоти. Після процесу кінетичного розділення енантіомерна чистота продуктів досягала 99 % ее.
Coronary CT Angiography in the Cath Lab: Leveraging Artificial Intelligence to Plan and Guide Percutaneous Coronary Intervention
Authors: Ohashi Hirofumi , Bouisset Frédéric , Buytaert Dimitri , Seki Ruiko , Sonck Jeroen , Sakai Koshiro , Belmonte Marta , Kitslaar Pieter , Updegrove Adam , Amano Tetsuya , Andreini Daniele , De Bruyne Bernard , Collet Carlos
Published: November 2023

The role of coronary CT angiography for the diagnosis and risk stratification of coronary artery disease is well established. However, its potential beyond the diagnostic phase remains to be determined. The current review focuses on the insights that coronary CT angiography can provide when planning and performing percutaneous coronary interventions. We describe a novel approach incorporating anatomical and functional pre-procedural planning enhanced by artificial intelligence, computational physiology and online 3D CT guidance for percutaneous coronary interventions. This strategy allows the individualisation of patient selection, optimisation of the revascularisation strategy and effective use of resources.
Безпека інформаційних систем як чинник ефективності мережевого управління
Authors: Запорожець Тетяна , Цимбаленко Яна
Published: November 2023

Мета дослідження полягає у визначенні  основних  аспектів  і  напрямів забезпечення безпеки інформаційних систем органів державної влади як чинника ефективності мережевого управління. 

Актуальність дослідження обумовлюється важливістю та необхідністю дослідження проблем за вказаним напрямом, зокрема щодо захисту мереж від несанкціонованого доступу, протидії витоку даних, попередження кібератак, запобігання поширенню вірусів, шкідливого програмного забезпечення тощо. 

Результати. Проаналізовано напрями досліджень зарубіжних вчених, які займаються науковим пошуком проблем функціонування інформаційно-аналітичних мереж у державному секторі, ролі інформації в мережевій економіці, управління державними інформаційними системами, аспектів кібербезпеки та проблем розбудови мережевої інфраструктури для суб’єктів державного управління. Досліджено підходи до сучасного аналізу стандартів і політик, які допомагають визначити вимоги до безпеки мереж та інформаційних систем.

Висновки. Використання сучасних технологій, таких як хмарні обчислення, штучний інтелект, аналітика даних значно покращують функціонування державних інформаційних мереж, наголошують на важливості встановлення стандартів, принципів та правил регулювання в галузі інформаційних технологій та мереж з метою забезпечення сумісності та безпеки, підкреслюють важливість інтеграції сучасних технологій, кібербезпеки й ефективного управління інформацією для покращення мережевого управління та забезпечення якості надання послуг громадянам. З’ясовано, що науковці застосовують поняття «управління мережевою безпекою» та обґрунтовують підходи щодо удосконалення її архітектури, тлумачачи цей процес як набір рішень і стратегій, призначених для реалізації комплексного управління інформаційним обігом у мережах організації. Наголошено, що інформаційна та кібербезпека стають ключовими елементами сучасного державного управління в усіх сферах суспільного розвитку, а використання автоматизованої та інтегрованої архітектури її функціонування дозволяє забезпечити належну якість мережевого управління.
Simultaneous qualitative and quantitative analysis for evaluating constituents of Atractylodis macrocephalae rhizome by UPLC-QTOF-MS
Authors: Cao Di , Long Haishan , Shen Xuebin , Hu Bin , Xu Shixia , Zhang Huining , Zhao Zhongxiang , Han Jun
Published: November 2023

Atractylodis macrocephalae rhizome (AMR) belongs to medicine food homology. Its' clinical application of invigorating the spleen-stomach of AMR was applied to various diseases. In this research, a UPLC-QTOF-MS method was developed for qualitative and quantitative analysis of AMR, simultaneously. A Waters Acquity BEH C18 column (2.1 mm × 100 mm, 1.7 μm particle size) was used for separation of AMR multi-components. The column was eluted with a mobile phase of 0.1% formic acid-water and 0.1% formic acid-acetonitrile. Electron spray ionization with positive-ion mode and external standard method was utilized for quantifying the nine analytes in AMR. Constituents of AMR were scanned by UPLC-QTOF-MS and then identified by mass fragments and chromatographic information compared with the published literature and reference standards. Under positive mode, a total of 61 chemical compositions including 16 terpenoids, 8 polyacetylenes, 6 aromatics, 5 flavonoids, 5 coumarins, 5 organic acids, 4 amino acids, 3 fatty acids, 3 aliphatics, 2 steroids, and 2 alkenes, a nucleoside and an aldehyde were identified. Simultaneously, the contents of three amino acids (L-tyrosine, L-phenylalanine, and L-tryptophan), three sesquiterpenoids (atractylenolide Ⅲ, atractylenolide Ⅱ, and atractylenolide Ⅰ), a flavonoid (rutin), an organic acid (ferulic acid), and a pentacyclic triterpenoid (oleanolic acid) were determined in seventeen AMR batches. Amino acids and triterpenoid were quantified for the first time in AMR. The UPLC-QTOF-MS method developed in this article was reliable, practical, and useful for qualitative and quantitative evaluation of AMR multi-components.
Diversity of endophytic fungi from medicinal plants Dysosma difformis (Hemsl & E.H. Wilson) T.H. Wang collected in Ha Giang and Lai Chau.
Authors: Hoa Tran Thi , Thu Giang Nguyen , Hong Ha Nguyen Thi , Huyen Tran Thi , Tien Phat Do , Hoang Ha Chu , Bich Ngoc Pham , Ho Quang Tran
Published: November 2023

Plant endophytes are an interesting group of microorganisms that colonize the internal tissues of living plants and do not cause any disease symptoms in the host plant. It exists in different parts of plants, such as roots, leaves, and stems, and significantly affects the formation of metabolic products in plants by promoting the accumulation of important secondary metabolites. The present study focused on analyzing the diversity and distribution of endophytic fungi related to different tissues from samples of the medicinal plant Dysosma difformis (Hemsl & E.H. Wilson) T.H. Wang collected in Ha Giang and Lai Chau, in which the isolates from roots were 27 strains (50.94%), 12 strains from stems (22.64%), and 14 strains from leaves (26.42%). Based on the isolates, we analyzed the fungal diversity through seven different diversity indices. The results showed that isolates’ diversity was similar to the endophytic fungal population in tissues of D. difformis distributed in different vegetation in Vietnam. Specifically, Shannon's index showed the highest diversity in roots (H′ = 2.673), followed by stems (H′ = 2.162) and leaves (H′ = 2,054). Similarly, species richness was highest in roots (Dmg = 4,551; Dmn = 3,079) and stem (Dmg = 4,024; Dmn = 3,175) and lowest in leaves (Dmg = 3.41; Dmn = 2,405). However, the Simpson diversity index showed that the endophytic fungal community was most abundance in leaves (1-D = 0.911), followed by stems (1-D = 0.897) and roots (1-D = 0.867). In addition, the Sorensen index of 0.615 shows the average similarity in species composition between the two sites, Ha Giang and Lai Chau. This is the first report on the diversity of endophytic fungi isolated from D. difformis, paving a potential way for screening endogenous fungal strains capable of producing important secondary compounds.
Znaczenie Janowej frazy „gennēthḗ(i) eks hýdatos kaí pneúmatos” (J 3, 5)
Authors: Baran Grzegorz
Published: November 2023

Występująca w dialogu Jezusa z Nikodemem fraza gennēthḗ(i) eks hýdatos kaí pneúmatos (J 3, 5) ma głębokie znaczenie teologiczne. Jej przesłanie wynika z poszczególnych terminów: hýdōr („woda”), pneúma („duch”), które w tradycji biblijnej posiadają bogatą symbolikę, nabudowaną na ich dosłownym znaczeniu. Teksty ksiąg biblijnych, a zwłaszcza czwarta Ewangelia, ukazują ścisły związek pomiędzy rzeczywistościami, które wyrażają oba terminy. We frazie gennēthḗ(i) eks hýdatos kaí pneúmatos terminy hýdōr i pneúma odnoszą się do tej samej rzeczywistości, czyli duchowych (nadprzyrodzonych) narodzin, których sprawcą jest Duch. Wzmianka o „wodzie” ma za zadanie dookreślenie okoliczności, w których dokonuje się owo „zrodzenie z wody i Ducha”. Okoliczności te zachodzą w kontekście sakramentu chrztu.
Michała Hellera koncepcja teologii nauki
Authors: Pabjan Tadeusz
Published: November 2023

Tematyka artykułu oscyluje wokół koncepcji teologii nauki zaproponowanej przez Michała Hellera. W ujęciu tego autora teologia nauki ma być nową dyscypliną teologiczną, która uczyni przedmiotem swoich analiz fakt istnienia nauk – w szczególności nauk przyrodniczych – oraz uzyskiwane w tych naukach wyniki. W pierwszej części artykułu omówiona zostanie sama idea teologii nauki. W zamyśle Hellera dyscyplina ta ma spoglądać na nauki przez pryzmat teologicznej prawdy o stworzeniu świata przez Boga. Problematyka stworzenia staje się w tym ujęciu punktem odniesienia dla analiz poświęconych teoriom naukowym, które mówią o początku świata i o ewolucyjnym początku życia biologicznego. Te i tym podobne zagadnienia, które mogą być przedmiotem zainteresowania teologii nauki, zostaną krótko omówione w dalszej części artykułu.
Extracellular DNA secreted in yeast cultures is metabolism-specific and inhibits cell proliferation
Authors: de Alteriis Elisabetta , Incerti Guido , Cartenì Fabrizio , Chiusano Maria Luisa , Colantuono Chiara , Palomba Emanuela , Termolino Pasquale , Monticolo Francesco , Esposito Alfonso , Bonanomi Giuliano , Capparelli Rosanna , Iannaccone Marco , Foscari Alessandro , Landi Carmine , Parascandola Palma , Sanchez Massimo , Tirelli Valentina , de Falco Bruna , Lanzotti Virginia , Mazzoleni Stefano
Published: November 2023

Extracellular DNA (exDNA) can be actively released by living cells and different putative functions have been attributed to it. Further, homologous exDNA has been reported to exert species-specific inhibitory effects on several organisms. Here, we demonstrate by different experimental evidence, including 1H-NMR metabolomic fingerprint, that the growth rate decline in Saccharomyces cerevisiae fed-batch cultures is determined by the accumulation of exDNA in the medium. Sequencing of such secreted exDNA represents a portion of the entire genome, showing a great similarity with extrachromosomal circular DNA (eccDNA) already reported inside yeast cells. The recovered DNA molecules were mostly single strands and specifically associated to the yeast metabolism displayed during cell growth. Flow cytometric analysis showed that the observed growth inhibition by exDNA corresponded to an arrest in the S phase of the cell cycle. These unprecedented findings open a new scenario on the functional role of exDNA produced by living cells.
The Importance of Developing Servant Leadership Competencies for Middle Managers in Organisations: A Case Study on the Requirements and the Impact
Authors:   Vytautas Magnus University, Lithuania, Gedvilienė Genutė , Supranavičienė Ugnė ,   Vytautas Magnus University, Lithuania
Published: November 2023

This paper presents research on the requirements and impact of servant leadership competencies development for middle managers in Lithuanian Railways. The research aimed to determine the requirements for servant leadership development. The methods of use were deduced based on middle managers’ gender, location, size of the team, managerial experience and field of activity. A qualitative research design was used based on in-depth focus group discussions with middle managers (7) and senior managers (4). Creating strategic investments in human capital development and a supportive organisational culture that values servant leadership is needed.
Inventory for Measuring Higher-Order Thinking Learning Environment
Authors:   Djuanda University of Bogor, Indonesia, State University of Jakarta, Indonesia, Bisri Hasan , Rahmawati Yuli ,   Djuanda University of Bogor, Indonesia, State University of Jakarta, Indonesia, Ridwan Achmad ,   State University of Jakarta, Indonesia
Published: November 2023

The research aims to obtain empirical evidence of the reliability, dimensionality, and validity of instruments of higher-order thinking learning environment inventory (HOTLEI). Data was collected using quantitative methods with the Rasch model analysis. The numbers sample is 1361 students from 15 junior high schools in DKI Jakarta, West Java, and Banten. The research concluded that the measurement reliability was at a good level and excellent in extensive trials. The HOTLEI fulfils unidimensionality adequacy based on raw variance explained of 31.6% and 42.3%, and eigenvalues less than 3.0. A mount of 32 valid items is categorised as productive for HOTLEI measurement.
Mandatory and Optional Professional Development Programmes in the Republic of Serbia
Authors:   Singidunum University, Belgrade, Serbia, Gavranović Valentina , Alčaković Slavko ,   Singidunum University, Belgrade, Serbia
Published: November 2023

This study focuses on teachers’ professional development practices in the Republic of Serbia, presenting the results obtained from questionnaires of mixed research conducted to investigate teachers’ attitudes towards different forms of professional development programmes, how often teachers participate in them, and why. The results show a high degree of correlation between their positive attitudes and the frequency of participation when teachers are externally motivated, and no correlation if they self-direct their professional development. The research draws attention to the need to re-examine the existing teacher professional development policies considering the needs of teachers and their teaching practices.
MODELING THE PROCESS OF LIQUID SLUGS GROWTH IN SURFACE FIELD PIPELINES
Authors: Mikhaylov V. G. , Pashali A. A.
Published: November 2023

Most mechanistic models developed for calculating the pressure gradient in a slug structure of a gas-liquid flow are based on the basic requirement of specifying a constant length of a liquid slug as input data. Experimental studies in large-diameter pipelines have shown that the length of the liquid slug in such flows is not a constant value. Since the formation of the mechanism of slug formation in gas-liquid flow, the length of the slug can increase hundreds of times as it moves along the flow channel. Analysis of experimental measurements has shown that with certain reservations the entire process of growth of liquid slugs in large-diameter pipelines can be divided into two different mechanisms. The first mechanism determines the short-term growth of the slug and is characterized by formation of a gas-liquid slug structure due to the absorption by the frontal surface of the liquid slug of an unstable wave-stratified layer of liquid located between adjacent waves blocking the passage section of the channel. The subsequent growth of the liquid slug is based on the processes of expansion of the gas phase and mass transfer of hydrocarbons from liquid to gas, which is typical for crude oil at pressure reduction. To develop the second mechanism for long-term growth of the length of liquid slugs, correlations of the Black-oil model of phase transformations of formation fluids were used. Improved algorithms for calculating the lengths of liquid slugs and, consequently, the frequency of their passage through the channel can be useful for improving the functionality of known gas-liquid models by developing methods for analyzing the vibration characteristics of formation fluid pipeline transport systems.

The results of calculations using the developed mechanistic models of formation and growth of liquid slugs based on the use of equations of mass transfer of the liquid phase between structural formations of the slug flow regime have demonstrated good agreement with the available experimental data for large-diameter field pipelines.
TREATMENT EFFICIENCY ASSESSMENT FOR WASTEWATER WITH A HIGH CONTENT OF ORGANIC COMPOUNDS USING GREEN PLANTS AND AN ADVANCED OXIDATION PROCESS
Authors: Amineva E. S. , Bayazitova N. S.
Published: November 2023

An efficient wastewater treatment is one of the key points in the environmental protection both due to growing amounts of wastewater and associated biological risks. Wastewater treatment is a complex and time-consuming process; however, despite a significant number of studies in this area, the problem of maximizing wastewater treatment has not been fully resolved yet.

For the best wastewater treatment, researchers often experiment with the combined use of different treatment methods, but a highly efficient treatment of petroleum-containing wastewater is still an urgent task.

One of the most efficient and safe ways to treat wastewater is phytoremediation involving the use of green plants to absorb various pollutants. Oxidation using hydroxyl radicals, which are involved in the natural processes of water self-purification, is a promising solution for treatment of wastewater with a high content of organic compounds, including petroleum-containing effluents.

Wastewater treatment is a complex and time-consuming process; however, despite a significant number of studies in this area, the problem of maximizing wastewater treatment

In this paper, we suggest a two-stage technology for treatment of wastewater with a high content of organic compounds using green plants and oxidation process. For the first stage, we have analyzed the phytoremediation method and selected the most effective plants in the treatment of wastewater under consideration. For the second stage, we have analyzed the Fenton's process, based on which we have selected the optimal ratio and concentration of oxidizer and catalyst. We have assessed the wastewater treatment efficiency using the suggested two-stage treatment technology in terms of the chemical oxygen demand (COD), which was 83.9  %.
ENSURING TANK OPERATION RELIABILITY IN THE FAR NORTH CONDITIONS
Authors: Burkov D. V. , Gubaidullin M. G.
Published: November 2023

Improving the performance of oil and petroleum products storage tanks in the Far North continues to be an urgent problem for the oil industry, the solution of which is of great national economic importance. The operation of tanks in the Far North is associated with significant loads and stresses, resulting in uneven subsidence and deviations from the horizontal of the outer contour of the bottom and the verticality of the wall, which is unacceptable and critical in relation to the further tank operation. This circumstance can cause excessive deformations of the metal structures and lead to tank destruction, and as a result of significant environmental pollution and material losses. 

Subsidence occurs due to a number of reasons: deterioration of the strength properties of the soils of the base of the reservoir foundations located in the regions of the Far North with complex geology, the presence of water-saturated soils with their hydrogeological properties in the area of the tanks, violation of the technological and operational regime during the tanks operation, assumption errors and deviations at the design and construction stage.

In this regard, it is necessary to provide measures and technical solutions aimed at strengthening the tank design, including the inter-wall space for tanks with a protective wall, to ensure the stability and reliability of tanks located in the Far North.
PIG LAUNCHING AND RECEIVING TECHNOLOGY FOR DN 100-500 PIPELINES THROUGH TEMPORARY TRAP STATIONS
Authors: Shavshukov P. E. , Kunafin R. N.
Published: November 2023

Based on the analysis of the existing designs of temporary pig trap stations, it can be concluded that they all have the following design feature: the need to redirect the product flow to the pig launcher through a branch pipeline to receive pig to the main pipeline. The article considers the method prposed by the authors for launching and receiving stream projectiles into the pipeline through temporary pig trap stations, in which a universal electric or hydraulic drive is used to release the stream projectile into the main pipeline and subsequently receive it, which makes it possible to get rid of using a branch pipeline.
Tribute to Professor Willemien du Plessis: A Legacy of Excellence and Compassion
Authors: Van der Schyff Elmarie
Published: November 2023

A personal tribute to professor Willemien du Plessis.
The Intricacies of Land Reform in Namibia: An Overview of the Land Question in Namibia 33 Years After Independence
Authors: Mundia Kenneth Ferdie , Haimbili Rebeka
Published: November 2023

It is trite that at independence in 1990 Namibia inherited a skewed land distribution system in favour of a white minority, which necessitated the newly elected government to take drastic steps to redress the historical injustices pertaining to land ownership. The steps taken to address the land issue were birthed at the first National Conference on Land in 1991. This article investigates those measures and their effectiveness or lack thereof in satisfactorily solving the land question. One of those measures is the Willing-Seller Willing-Buyer Policy (WSWB) which, together with the legislative framework on land has failed dismally in ensuring the equitable distribution of land and realising the transformative aims of the Constitution. The article identifies various challenges Namibia faces in addressing the land issue, including the difficulty in implementing a mandatory policy of expropriation of private lands without compensation in a capitalist society. It further criticises the concept of national reconciliation adopted at the first National Land Conference in that it may have deprived the country of an opportunity to holistically address the skewed land distribution system once and for all. The article finds that the major constraints to meaningful land reform in Namibia are contained in the legislative framework and policies on land, which emanate from pre-independence provisions contained in the 1982 Constitutional Principles. The article also finds that due to those inherent constraints in the legislative framework, it is impossible to realise the transformative aims of the Constitution which include, equality in land distribution. There is therefore a need to rethink land reform in Namibia. In this regard, it is imperative to infuse the concept of restorative justice in the debate of land and to compel private landowners to participate in the process of land reform.
An Analysis of the Significance of Integration of the Bride in Customary Marriages and its Potential Constitutionality
Authors: Manthwa Tshepo Aubrey
Published: November 2023

Firstly, this contribution opts for the words "integration of the bride" rather than "handing over of the bride" during customary marriages. It is argued that the term "handing over of the bride" is problematic because it creates the impression that a woman is being treated as property or that she is being sold to the groom's family. The integration of the bride is a significant step in the conclusion of a customary marriage. However, this does not mean that the process carries the same importance and weight for all traditional groups in South Africa. Some groups may regard a ritual performed during the integration of the bride so important that a customary marriage cannot be concluded without it. It is therefore important for courts to focus on cultural nuances and differences between various groups when determining if certain rituals can be waived. Courts recognise an intimate relationship as a valid customary marriage even when it has not complied with an important ritual regarded as significant for the conclusion of a customary marriage. The courts should rather focus on other available avenues to protect vulnerable partners from the consequences of an intimate relationship’s not being recognised as a valid customary marriage. The courts must recognise the fact that the consent of the bride-to-be is important when determining whether a marriage was concluded. This refers to the consent of the bride to perform a ritual which is part of the ceremony of the integration of the bride. So, a marriage must not be recognised as valid if the bride did not consent to it or did not consent to a ritual performed as part of concluding a customary marriage. While the constitutionality of the integration of the bride was raised in an obiter dictum in the 2019 case of Sengadi v Tsambo, the primary consideration should be the consent of the bride. Integration should not be a problem where the bride has consented to it.
Transformative Legal History and the (Re)Classification of the South African Law of Delict
Authors: Zitzke Emile
Published: November 2023

The South African law of delict is traditionally classified as a private-law discipline. This classification is usually made with reference to the actor, power and interest theories. According to the actor theory, private law regulates disputes between non-state actors inter se while public law regulates disputes involving the state. The power theory maintains that private law regulates disputes between equals while public law brings equality where inequality exists. The interest theory dictates that there are some interests that are individualistic (where private law steps in) while other interests belong to the public at large (the playing field of public law). In this article honouring Prof Willemien du Plessis's contribution to legal history it is argued that none of the above traditional theories of classification can be used effectively to classify the South African law of delict as a purely private-law discipline. Instead, our law of delict fulfils a hybrid role, straddling public and private law, with much transformative potential. Actor theorists fail to account for the fact that the South African law of delict today regulates disputes between non-state actors inter see as well as the law on state liability. The power theory crumbles in the South African law of delict's private-law classification because oftentimes one of the strong reasons invoked to impose liability on a wrongdoer is that wrongdoer's position of relative power over the victim. The interest theory sheds doubtful light on the classification of the South African law of delict because it is difficult to justify how individual-rights infringements are either purely private or public. In the end, relaxing the absoluteness of the claim that the South African law of delict exclusively falls in the domain of private law could assist us in recognising the role that delict could play in transforming South African society in line with constitutional aspirations, fostering the responsible use of power, and working towards the collective wellbeing of our society.
Chief Justice Coke: Common Law v Royal Absolutism
Authors: Robinson Robbie
Published: November 2023

In this contribution Chief Justice Coke's character and contribution to the development of the English law are considered. More specifically the focus falls on his profound knowledge of the Common Law and the concomitant emphasizing of human freedom. Coke's emphasizing of the Common Law was the cause of continuous conflict between himself and King James 1 and later also King Charles 1. True to the Royal approach in this era they strongly endorsed Royal absolutism, believing it stemmed from a divine origin. James 1 enjoyed the support of Sir Francis Bacon. Also between him and Coke intense rivalry, also of a personal nature, existed. Against James 1 and Bacon's continuing attacks on his views, Coke could only turn to the common law.
Deadly Air and the Misinterpretation of the Section 24 Environmental Right: The Groundwork Trust Case
Authors: Kidd Michael
Published: November 2023

The judgment in Trustees for the Time Being of the Groundwork Trust v Minister of Environmental Affairs rests on a finding that the right in section 24 of the Constitution consists of two separate rights in subsections (a) and (b), and that the right in section 24(a) is immediately realisable. I argue in this article that this approach is incorrect and that a logical and contextual interpretation of section 24 cannot justify the conclusion that the court reached. I argue that section 24(b) is a qualifying "internal modifier" to section 24(a), and that, in practical terms and due to the modifier in section 24(b), in many situations section 24 would have to be regarded as implementable over time, and not immediately. Such implementation would have to be reasonable. The article also considers the use of the National Environmental Management: Air Quality Act to address the unacceptable level of air pollution in the area known as the Highveld Priority Area.
The Genesis of the Common Purpose Doctrine in South Africa
Authors: Hoctor Shannon
Published: November 2023

This contribution seeks to assess whether the generally accepted narrative of the emergence of the common purpose doctrine in South African law, as set out in Rabie's analysis of the doctrine, is indeed correct. In particular the following questions are examined: (i) Did the common purpose doctrine derive from English roots? (ii) Were the means of entry into South African law the Native Territories Penal Code? (iii) Did the doctrine indeed emerge in South African case law in 1917, in the Appellate Division case of McKenzie v Van der Merwe?
Laudation for Professor Willemien du Plessis (BJur LLB LLD MA (Environmental Management))
Authors: Smit Nicola
Published: November 2023

Laudation for Professor Willemien du Plessis
COMPREHENSIVE ANALYSIS OF MAGNETIC AND GRAVITY DATA BASED ON VOLUMETRIC GRAVITY-MAGNETIC MODELING ALONG THE GEOTRAVERSE IN THE SHU-SARYSU SEDIMENTARY BASIN
Authors:   Karaganda Technical University, Karaganda, Republic of Kazakhstan, TLEUBERGENOVA Aigerim , UMIROVA Gulzada ,   Karaganda Technical University, Karaganda, Republic of Kazakhstan, MAUSSYMBAYEVA Aliya ,   Karaganda Technical University, Karaganda, Republic of Kazakhstan, PORTNOV Vasiliy ,   Karaganda Technical University, Karaganda, Republic of Kazakhstan
Published: November 2023

The purpose of the studies presented in the article is to obtain the information of the deep structures along the Shu-Sarysu geotraverse, to determine the regularities in the distribution of mineral deposits and predictive assessment of the research area prospects for searching for hydrocarbons and other minerals. To achieve this purpose, a complex of high-precision gravitational and magnetometric measurements was used. There was shown a high efficiency of the integrated interpretation of 3D gravimagnetic modeling when studying the geological structure of the crystalline basement (assessment of the morphology of its surface, material-petrophysical mapping of the rocks that make up the basement) and the sedimentary cover (assessment of the morphology of the reference horizons, studying their material composition); when identifying and clarifying the position of discontinuous faults, conducting lineament analysis in order to decipher the block structure of the studied areas; when building 3D volumetric models of geophysical parameters; when substantiating predictive and search geophysical criteria for detecting oil and gas geological structures, both in the thickness of sedimentary formations and in the rocks of the crystalline basement. The progress of these methods is conditioned by the widespread introduction into practice of modern computer technologies for processing and interpreting data.