bluuebunny/crossref_metadata_2025 huggingface dataset:
"СТАЦИОНАРЛЫҚ РЕЖИМДЕРДІ ЕСЕПТЕУДЕ ЭЛЕКТР ЖЕЛІЛЕРІНІҢ РЕЖИМДЕРІН МОДЕЛЬДЕУ ЖӘНЕ ОҢТАЙЛАНДЫРУ"
Authors: Б. Онгар  , Г. К. Смагулова  , Е. А. Сарсенбаев  , Э. А. Нурмадиева  , Е. Е. Сеитбек
Published: July 2023

"Бұл жұмыс энергетиктерге арналған оқулық болып табылады және оның ішінде энергетикалық режимді басқару мәселелерінің шағын бөлігі қарастырылады, бұл тек режимді басқару мәселелері бойынша білімге негіз болады. Мақалада режимді оңтайландырудың заманауи мүмкіндіктеріне көп көңіл бөлінеді. Қазіргі уақытта режимді оңтайландырудың көптеген мәселелері бойынша әдістемелік материал мен есептеу әдістерін құру бойынша белсенді жұмыстар жүргізілуде. Жалпы электр желілері төртұштықтар құрамына кіретін болғандықтан, төртұшты электр тізбегінің Т, П, және Г-типті сұлбалардан тұратындығын білеміз. Соның ішінде қарасытырып отырған желінің орынбасу сұлбасында П-типті сұлба алынған, және соған байланысты есептеулер жүргізілген. Сондай-ақ желіде бойлай таратылған біріншілік және екіншілік параметрлері анықталынған. Біріншілік параметрлер құрамында меншікті активті кедергі, меншікті индуктивтілік, меншікті сыйымдылық және меншікті өткізгітік мәндерін қарастырсақ, ал екіншілік параметрлер құрамына толқындық кедергі мен тарату коэффициенттерін қарастырамыз. Гистерезис шығынын сызықтық емес жиілікке тәуелді кедергі ретінде қарастырып шығынын кернеуге емес, магнит ағынына тікелей байланысты екенін анықтаймыз. Демек, 60 Гц жиілігі үшін орташа шығынды үйлестіру қозу уақыт аймағында дұрыс ағын-ток траекториясы жүреді дегенді білдірмейтіні нақты өзекті болып келеді. Трансформатордың қалдық ағыны-іске қосу токтарын модельдеу үшін гистерезис тұзағы алынады. Режимді оңтайландыру – әрқашан өзекті болған тақырып. "
"THE POTENTIAL OF GEOTHERMAL SOURCES IN SOUTHERN KAZAKHSTAN FOR HEAT SUPPLY TO RURAL CONSUMERS, the case OF THE ZHAMBYL REGION"
Authors: S. А. Orynbayev  , A. B. Tokmoldaev  , N. Sh. Abdlakhatova  , L. F. Ribeiro  , T. S. Zhusup
Published: July 2023

"The article presents the characteristics of geothermal deposits in the south of Kazakhstan and the analysis of the potential of geothermal waters of the Zhambyl region. Moreover, the study carries out the review of various types and methods of using geothermal water for household and its needs. Consequently, it outlines information on thermal boreholes. During the elaboration, manufacture and testing of these combined power units, several scientific and technical issues, such as the choice of the optimal low-boiling working fluid for heat and hot water supply systems were solved. An overview of the refrigerants and vapor compression fluids currently available have been made. The classification and characteristics of secondary heat carriers of various types and temperatures of their use are given. Therefore, it is proposed to use non-azeotropic binary mixtures as working bodies of a closed heat-power circuit. Moreover, an analysis was carried out on the use of non-azeotropic mixtures for heat pumps. It is proposed to use mixtures of refrigerants as working bodies for the second circuit. The specific characteristics of refrigerants are outlined. As a result, a description of the operation scheme of a steam compression heat pump operating in the mode of heat and hot water supply is highlighted. "
"КОНСТРУКЦИОННЫЕ ОСОБЕННОСТИ МАГНИТНЫХ ПРЕОБРАЗОВАТЕЛЕЙ ТОКА "
Authors: Д. М. Рахимбердинова  , А. Н. Новожилов  , Е. Н. Колесников  , Н. Ш. Жуматаев  , Т. А. Новожилов
Published: July 2023

"Для построения токовых защит электрических сетей и электроустановок традиционно применяются трансформаторы тока и токовые реле. В силу конструкционных особенностей целого ряда элементов электроэнергетических систем установка трансформаторов тока и, следовательно, токовой защиты, построенной на них, сопряжена со значительными сложностями. Вместо традиционно используемых измерительных преобразователей тока в виде трансформатора тока и реагирующего органа в виде токового реле предлагается использовать магнитный преобразователь тока, который выполняется на базе магнитной и контактной системы токового реле РТ-40. Предложенные конструкции магнитного преобразователя тока различаются методами его крепления и выставления порога срабатывания, а также способами защиты от напряжения в токоведущей шине. Это дает возможность реализовывать простые и дешевые, однофазные и трехфазные токовые защиты для низковольтных электрических сетей и электроустановок с классом напряжения до 1000В, а также высоковольтных электроустановок напряжением 6–10 кВ. Таким образом, магнитные преобразователи тока представляют отдельный класс простых в изготовлении и установке защит электрических сетей и электрических установок от КЗ, для реализации которых не требуется трансформатор тока. "
"AIR HEATING CONTROL SYSTEM BASED ON MICROCONTROLLER "
Authors: N. A. Ispulov  , M. Zh. Sultanova  , Zh. Dzh. Ospanova  , E. M. Jussupova
Published: July 2023

"This article discusses a technological solution developed on the basis of an Arduino-type microcontroller with automatic control of air heating in production. Currently, microcontrollers have a large range (more than 10,000), which differ among themselves in terms of application, parameters and other properties. Dozens of manufacturers are engaged in the release of microcontrollers. Increasing reliability, speed and functional saturation, as well as reducing the amount of modern computer technology and electricity consumed have led to its widespread use to control complex technological objects with a large number of physical quantities and controlled installations. The result of this article will be the development of a block diagram, drawing up a schematic diagram of a control system, block diagrams, writing a program for a microcontroller, developing an operation algorithm and a set of elements that can be used in any production, production process (for example, drying systems, heating installations, etc.), where an air heating control system is deemed necessary. Also, the main conclusions, concepts of this research work can be used in production processes, household appliances and as a teaching aid. "
"Alternative technologies for autonomous power supply "
Authors: T. I. Glushchenko  , T. V. Bedych  , M. L. Fyodorova  , B. B. Issabekovа  , N. U. Bizhanov
Published: July 2023

"The article considers the relevance of the use of autonomous power systems powered by renewable energy sources for use in the agricultural sector in the conditions of the Kostanay region. The main features of energy supply systems from the point of view of the rationality of their construction with a low population density and developed agriculture are considered. The share of the component in the structure of the cost price and tariffs for electricity associated with the generation of electric power is given. The share of electric energy costs in the production of agricultural products is determined and ways to reduce them are outlined. The possibility of using hybrid autonomous power plants for water supply for agricultural needs is considered. The article presents the device and the principle of operation of alternative technologies for obtaining thermal, mechanical and electrical energy using a solar water jet and a greenhouse generator. A comparative analysis of the advantages and disadvantages of the considered alternative technologies is carried out, on the basis of which design changes and improvements to existing structures are proposed. It is proposed to use a Stirling engine to generate mechanical energy in conjunction with a greenhouse generator, allowing the wind generator to generate electrical energy. The main advantages and versatility of the hybrid design, in comparison with the original ones, allowing the use of renewable energy, are noted. "
ОБЗОР СОВРЕМЕННОГО СОСТОЯНИЯ И РАЗВИТИЯ СИСТЕМ МОНИТОРИНГА ТЕХНИЧЕСКОГО СОСТОЯНИЯ СИСТЕМЫ ВОЛС
Authors: М. Ж. Мусагажинов  , А. Д. Мехтиев
Published: July 2023

"Низкая своевременность эксплуатации и технического обслуживания в определенной степени снижает надежность эксплуатации и технического обслуживания сетевых коммуникаций, поэтому особенно актуальным является изучение технологии эксплуатации и технического обслуживания сетевых коммуникаций, основанной на больших данных. Проблемы, связанные с обеспечением контроля за техническим состоянием конструкций особо ценных зданий и сооружений – объектов культурного наследия, существовали всегда, и их возможным решением на сегодняшний день является внедрение значительного прогресса в области инновационных технологий, программного и аппаратного обеспечения, разработка эффективных алгоритмов сбора и обработки информации. Одной из таких проблем является мониторинг технического состояния объектов культурного наследия в режиме реального времени. Проверка технического состояния таких объектов является периодической при отсутствии непрерывного мониторинга технического состояния конструкций, ответственных за несущуюспособность здания или сооружения в целом. В этой статье описывается разница между несколькими различными режимами передачи в области оптоволоконной связи и обсуждаются связанные с этим факторы, которые ограничивают надежность и своевременность сети передачи по оптоволокну. На этой основе в данной статье анализируется возможность интеграции технологии больших данных и оптоволоконной сети, а также перечисляются типичные области применения технологии больших данных в оптоволоконной сети, что обеспечивает новое направление мышления для мониторинга производительности и обслуживания эксплуатации оптоволоконной сети передачи информации. "
ПРИМЕНЕНИЕ ИНТЕЛЛЕКТУАЛЬНОЙ СИСТЕМЫ УПРАВЛЕНИЯ ТЕПЛООБМЕННЫМИ АППАРАТАМИ
Authors: О. А. Андреева  , Т. В. Гоненко  , М. А. Любецкая  , М. Т. Азаматов
Published: July 2023

"В данной работе рассмотрены основные аспекты разработки интеллектуальной системы управления теплообменными аппаратами на основе системы нечеткой логики с учетом технологического износа. Рассмотрение факторов, возникающих в процессе работы оборудования и влияющих на коэффициент теплопередачи, показало, что важной задачей при эксплуатации теплообменного оборудования крупных производств является оптимизация их работы за счет оперативного и диспетчерского управления. При планировании технического обслуживания и ремонтных работ необходимо учитывать информацию о степени износа (загрязнения), влияющую на изменение эксплуатационных параметров. Важной задачей является всесторонний анализ теплообменника как объекта управления для выявления всех существенных входных, выходных и возмущающих переменных. Исследование эксплуатационных режимов работы теплообменного оборудования дает возможность применения оптимальных методов управления ими. Корректность определения этих параметров отразится на таких характеристиках как: энергопотребление, надежность и межремонтный срок, которые в свою очередь являются одними из важнейших показателей. Проблема выбора и разработки систем управления теплообменными аппаратами, поддерживающих в динамике условия оптимального теплообмена, является весьма актуальной. В работе рассмотрены вопросы математического моделирования тепловых процессов, с учетом технологического износа и загрязнения поверхностей оборудования. Для полученной модели объекта управления был разработан алгоритм работы и выполнена настройка параметров регулятора на базе нечеткой логики. Результаты имитационного моделирования показали, что предложенная структура системы интеллектуального управления на базе нечеткой логики с использованием пакета Fuzzy Logic Toolbox программного обеспечения Matlab/Simulink обеспечивает выполнение требуемых условий. "
Osmanlı Devleti’nde Ekonomik Hayatın Yerel Unsurları: Mustafa Şamlı Mahdumları Müessesât-ı Ticariyyesi Örneği (1850-1931)
Authors: DAĞ Mustafa
Published: July 2023

Tanzimat dönemi ile birlikte Osmanlı Devleti’nde ticari hayatta başlayan değişim ve modernleşme çalışmaları neticesinde ticari müesseselerinin değişim ve dönüşümlerine dair meydana gelen gelişmeler incelenerek hazırlanan bu çalışmada, Mustafa Şamlı Mahdumları Ticarethanesi ele alınmıştır. Haliyle Mustafa Şamlı Mahdumları Ticarethanesi çalışmanın konusunu teşkil etmiştir. Bu bağlamda çalışmanın giriş kısmında ticari hayatın düzenleyici otoritesi olan Ticaret ve Ziraat Nezâreti’nin kuruluş süreci ile Osmanlı’da şirketleşme hukukunda meydana gelen gelişmelere değinilmekle birlikte nezâretin öncülük ettiği batı kaynaklı yeni kanun ve düzenlemeler çerçevesinde şirketlerde meydana gelen anonimleşme faaliyetleri hakkında bilgi verilmiştir. Daha sonra 1917 yılında anonimleşecek olan Mustafa Şamlı Mahdumları Müessesât-ı Ticariyyesi hakkında bilgi verilerek ticarethanenin faaliyetleri üzerinde durulmuştur. Ticarethanenin idari yapılanmasında meydana gelen değişim sonucunda 19 Mayıs 1917 tarihinde kurulan Mustafa Şamlı Mahdumu Müessesât-ı Ticaret-i Anonim Şirket-i Osmaniyesi’nin kuruluş süreci ve faaliyetleri değerlendirilmiştir. Bu değerlendirmede ana kaynak olarak istifade edilen arşiv belgelerinin yanı sıra literatürde yer alan araştırma inceleme eserlerden ve basın yayın organlarından da yararlanılmıştır. Bu bağlamda Mustafa Şamlı Mahdumları Ticarethanesi’nin kuruluş süreci ve idari yapının yaşamış olduğu değişime yönelik bilgiler ortaya çıkarılmaya çalışılmıştır. Ayrıca 1850 ile 1931 yılları arasında gerek ulusal gerekse uluslararası sahada gerçekleştirilmiş olan ticari faaliyetler incelenerek ticarethane tanıtılmaya çalışılmıştır. Bu çerçevede yürütülen çalışma neticesinde ticarethanenin tekstil ve madencilik sektöründe faaliyet yürüttüğü saptanmıştır. Ayrıca ticarethanenin ülke içerisinde İstanbul ve çevresi ile ülke dışında Almanya, İngiltere ve Fransa gibi batılı ülkelerle ticari münasebetler içerisinde bulunduğu tespit edilmiştir.
Sobre una tesis autobiográfica, una vuelta a la escuela, la autoficción y la poesía
Authors: Metzdorff Valeria
Published: July 2023

En este trabajo analizo la construcción de mi tesis titulada “Siervas inútiles somos. Autoficción devuelta a la escuela”, profundizando en los recursos y posibilidades de la autobiografía pedagógica, presentándola como acción poética, desde una concepción de lo humano y del sujeto proveniente de la fenomenología y la hermenéutica, el postestructuralismo y las epistemologías postmodernas. Las conclusiones plantean la posibilidad de avanzar en el esbozo de un ámbito para una poética pedagógica que adopte del campo artístico la reflexión sobre los procesos distintos de producción y de presentación de las obras para contribuir a visibilizar otras formas de nombrar y de crear lo que vivimos las maestras y los alumnos y lo que las escuelas son en nuestra continua construcción autobiográfica que siempre es también, autoficción y producción poética.
Experiencias vividas en la gestión educativa de las políticas de inclusión digital
Authors: Marchetti Braian
Published: July 2023

El estudio de políticas educativas y en particular de aquellas abocadas a la inclusión digital como el Programa Conectar Igualdad (PCI) reviste de una gran complejidad por la multiplicidad de actores intervinientes y las perspectivas de análisis posibles. Nos posicionamos desde un abordaje de las políticas educativas que se centra en la indagación de la experiencia vivida por los propios sujetos que, en este caso, protagonizaron la puesta en acto del PCI en el Ministerio de Educación de la Nación y ANSES. El enfoque biográfico narrativo se presenta como vía de entrada fecunda al estudio de las emociones que atraviesan a quienes forman parte de espacios de decisión sobre las políticas educativas en el Estado. Recuperar las emociones, convicciones y pasiones de los sujetos involucrados en las políticas educativas se configura como un camino a recorrer que permite indagar sobre la gestión de políticas nacionales destinadas al ámbito educativo y la inclusión digital desde otra perspectiva. Observamos una estrecha relación entre el compromiso y la convicción por garantizar la mejora de las condiciones educativas del nivel secundario y por reducir las desigualdades digitales desde una perspectiva de derecho y las emociones que se ponen en juego en la puesta en acto de políticas como el PCI.
Arqueologías biográficas: investigaciones-promesas a propósito del realismo agencial y otras actancias
Authors: Yedaide María Marta
Published: July 2023

El texto que sigue compendia reflexiones alrededor de lo educativo y lo pedagógico a propósito de procesos y proyectos de investigación en curso del Grupo de Investigación en Escenarios y Subjetividades Educativas (GIESE) de la Facultad de Humanidades de la Universidad Nacional de Mar del Plata. En los protocolos de la investigación académica este manuscrito puede inscribirse en el género “artículo” a condición de que se conciba en el marco de una etnografía previa de larga duración, lo que supone un conjunto de conversaciones en las cuales varias corrientes “teóricas” y experiencias de trabajo de campo intra-actúan—para codificarlo en términos realista-agenciales—en pos de producir relatos que puedan conmover o inspirar otras búsquedas. El artículo utiliza la imagen de la canción para proponer una inmersión en lo que se acuña contingente y provisoriamente como “arqueologías biográficas”, con el fin de estimular la imaginación respecto ciertos modos alternados y alterados de performar la investigación educativa. Este movimiento podría colaborar, anhelo, con una producción responsable del presente.
Historia(s) de caracolas
Authors: Cañueto Gladys Noemí
Published: July 2023

En el presente artículo retomo algunos tramos de mi tesis doctoral “El pensamiento histórico en las buenas prácticas de enseñanza de la historia en el nivel secundario. Un estudio interpretativo en escuelas municipales de Mar del Plata”, con la intención de reconocer experiencias vitales de otras mujeres que como profesionales docentes otorgan significado y sentido al presente proyectando futuros para sus estudiantes en territorio. En este trabajo rescato trazos de las historias de vida y biografías profesionales a partir del enfoque narrativo que me permitió conocer sus vivencias, tomas de decisiones, formas de hacer y de sentir la enseñanza.
Memorabilidades conversadas: relatos consentidos con la intimidad en la investigación
Authors: Crego María Victoria
Published: July 2023

En este artículo me dispongo a recuperar la experiencia de investigar la vida de seis profesores memorables de la Escuela de Educación Secundaria Nº19 de la ciudad de Mar del Plata, dando cuenta del giro sensorial que dio la investigación al tematizar la intimidad de quién la narra. Identificar las tramas que intervienen en la composición de la memorabilidad en las biografías de los profesores memorables, no fue un proceso directivo, desde arriba y a priori, sino que por el contrario implicó una íntima relación de valorización entre la narradora y los profesores de nuestras prácticas docentes. En cuyo devenir pude reconocer las implicancias de mi propia biografía escolar y profesional, entrenando mi voz de investigadora se coló mi voz de profesora y de cantante, está última en analogía con el lenguaje musical posibilitó relatos consentidos con la intimidad de esta investigación.
Hacia una política institucional de género en las universidades públicas mexicanas. Una propuesta metodológica
Authors: Rivera Guerra Norma Fernanda , Márquez Carrillo Jesús
Published: July 2023

El objetivo de esta investigación es proponer un instrumento de análisis para las instituciones públicas de Educación Superior que están comenzando con el proceso de incorporar una política institucional de género, considerando los elementos básicos para su puesta en marcha. En un primer momento se contempla el tema de la Política Institucional de Género y como soporte teórico: las políticas públicas, la teoría de género, la perspectiva de género, los principios de equidad e igualdad y, la transversalización. Con este sustento se crea una tabla de variables, dividida en dimensiones y preguntas para el análisis del contexto institucional, la identificación y valoración de los avances institucionales en la materia, así como las percepciones de las y los actores involucrados en las temáticas de género. Es importante que las instituciones de Educación Superior trabajen en la incorporación de estrategias, programas y acciones en perspectiva de género para el avance así una sociedad más igualitaria, justa y libre de discriminación, así como de violencia de género.
imitación como estrategia pedagógica para la enseñanza de Arte y Filosofía
Authors: Parra Leal Víctor Emilio
Published: July 2023

Este artículo explora el papel de la imitación en la enseñanza de las Artes visuales y la Literatura en educación básica por un lado y la Filosofía en educación media, por otro. Se inicia analizando el papel de la imitación en la enseñanza de las artes visuales y la literatura, donde se encuentra que aquélla debe ser entendida como una actividad de apropiación personal y no como una reproducción mecánica. Este hallazgo permite criticar la tendencia a considerar que el talento es producto de una capacidad innata que desconoce la tradición creativa. Igualmente se evidencia que el resultado de la imitación, paradójicamente, es la creatividad y originalidad, en la medida en que provee al estudiante una base de estilos creativos diferentes, para combinarlos o mejorarlos, construyendo un estilo propio. Luego se ofrecen algunas ideas de cómo puede aplicarse dicha estrategia a la enseñanza de la Filosofía en educación media, a través de tres formas clásicas de hacer filosofía. La similitud entre los métodos pedagógicos permite establecer vínculos interesantes entre la naturaleza de las dos áreas de conocimiento, respecto al acto creativo. El artista crea su obra de manera similar a como el filósofo crea el concepto; en los dos casos, a pesar de que el producto es único y particular, posee pretensiones de universalidad. Tanto Arte como Filosofía se rebelan contra algunas características de la razón instrumental, en la medida en que valoran el aprender a demorarse en la contemplación y la reflexión, y valoran la imposibilidad de encerrar sus productos bajo alguna utilidad definida. En este sentido, tanto Arte como Filosofía se erigen como paradigmas de la libertad humana.
dimensión política de la verdad a través del filosofar de Esther Díaz
Authors: Solano Vázquez Eduardo
Published: July 2023

El pensamiento está relacionado con un modo de ser. La forma de pensar que privilegia la ciencia pasa por alto el contexto, pareciera que eso es irrelevante, pues se cree que el pensamiento está alejado de la realidad natural e histórica. Sin embargo, el cómo se piensa incide en la relación que los sujetos mantienen con las cosas, los objetos, las situaciones y también entre sí. La razón moderna en cuanto científica y dominante, no sólo ha permitido el desarrollo técnico, también objetualiza lo diferente a sí misma, ese es el punto desde el cual filosofa Esther Díaz, dicho filosofar es recuperado e interpretado en este documento. La crítica a la ciencia en cuanto dominante y unívoca no invalida a los conocimientos dados a partir de ella, no se aboga por una clausura de la razón, sino que se confía en ella, siempre y cuando, sea capaz de abrirse a las distintas perspectivas. La apertura repercutiría a nivel político, en el sentido de que los sujetos se curarían del delirio de la dominación. El filosofar de Esther invita a ser libres, afrontar la vida con lucidez y pasión.
educación de las mujeres según Domingo F. Sarmiento y Juana Manso (1858-1878)
Authors: Rodríguez Laura Graciela
Published: July 2023

En esta investigación analizaremos los artículos que escribieron Domingo F. Sarmiento y Juana P. Manso sobre la educación de las mujeres en la provincia de Buenos Aires publicados en las revistas Anales de la Educación Común y La Educación Común durante el período 1858- 1878. Buscamos mostrar que sus intervenciones hicieron foco, por un lado, en criticar las políticas que implementaban los distintos funcionarios y por el otro, en elaborar propuestas para mejorar la situación de escolarización de las niñas, que obtuvieron distintos resultados. En un contexto nacional de elevado analfabetismo femenino, ambos acusaban a los responsables de mantener las escuelas de niñas y la Escuela Normal bajo el control de una asociación privada que ofrecía una educación limitada a la costura y el bordado; resistirse a abandonar el sistema lancasteriano de enseñanza que, si bien en teoría había dejado de existir, persistía en la manera en que se organizaban las escuelas; y demorarse en la creación de escuelas graduadas para mujeres con los grados superiores. Del lado de las propuestas, señalaremos de qué manera, gracias a estos reiterados reclamos realizados a través de las revistas y en sus roles como funcionarios en distintas épocas, Sarmiento y Manso fueron logrando que la escolarización de las niñas en líneas generales resultase cada vez más extensa y de mejor calidad, aunque persistieron los problemas en otros ámbitos.
Violencia y Poder. La otra inserción a la enseñanza del profesorado novel de Educación Primaria
Authors: Vargas Castro Erick Zorobabel
Published: July 2023

El presente trabajo, expone los resultados de una investigación sobre la apropiación y desarrollo de saberes docentes del profesorado novel durante sus primeras experiencias de ejercicio profesional en el estado de Sinaloa (México). Las evidencias, permitieron advertir un ambiente alterno de inserción que aportaba saberes constreñidos por un contexto delincuencial endémico de comunidades afectadas por el narcotráfico. De ahí que el posicionamiento teórico atendió las relaciones sociales de violencia y poder ante su valor epistémico re-significante del efecto choque con la realidad, propio de esta etapa donde se experimenta una incipiente socialización profesional. La metodología fue de naturaleza cualitativa con sustento en la etnosociología y la entrevista de tipo relato de vida, recuperando las vivencias de 70 profesores nóveles elegidos mediante una muestra no probabilística, caso típico-ideal. Los resultados se agruparon, según sus recurrencias, en cuatro dimensiones jerárquicas: 1) personal, 2) escolar, 3) comunitaria y 4) delincuencial, acorde con su nivel de afectación. Entre las conclusiones, se advierte que la inserción del profesor novel inmersa en un ambiente dominado por la subcultura del narcotráfico, transfigura el aprendizaje de la profesión con saberes docentes específicos y utilizables para sobrevivir esta contingencia dada su influencia intra e inter-áulica.
Indicators of restoration strategies in land uses: metallic and non-metallic elements
Authors: Alcalá Jáuregui Jorge Alonso , López Mendoza Yadira , Rodríguez Ortiz Juan Carlos , Filippini María Flavia , Martínez Carretero Eduardo , Moreno Gabriela , Hernández Montoya Alejandra , Rojas Velázquez Ángel Natanael , Beltrán Morales Felix Alfredo
Published: July 2023

Land management practices can have an impact on the environmental quality of soil and contribute to identifying the source of its pollution. The objective of this study was to determine presence of metallic and non-metallic elements as indicators of land use impact (livestock management, restoration strategies and without management practices) in the Monte Caldera communal lands located in Cerro de San Pedro, San Luis Potosi, Mexico. Eighteen samples were collected at depths of 0-10 cm and 10-20 cm for each land use. Total concentrations of Zr, Sr, U, Th, Pb, As, Rb, Cr, V, Ti, Zn, and Cu were determined by X-ray fluorescence. Mean concentrations ranged in the following order: Ti>Zr>Rb>V>Sr>Zn>Cr>Pb> Cu>Th>U>As, with concentrations for Ti, Cr, Th, U and As exceeding technical reference values for phytotoxic soils. Significant differences were evidenced by ANOVA between land use (Th, Pb, Rb, Cu) and soil depth (U, Pb, and As). Land use practices associated with restoration resulted in a positive environmental impact. These findings underscore the need to conduct follow-up studies in the area and further examine the relationship of such practices with other environmental factors.
Highlights:

Soil management practices can affect the environmental quality of this resource and help diagnose the source of its contamination.
It is necessary to evaluate the Impact of land use on livestock management, restoration strategies, and without management or conservation areas.
By X-ray fluorescence technique the total concentration of Zr, Sr, U, Th, Pb, As, Rb, Cr, V, Ti, Zn, and Cu was determined.
Ti, Cr, Th, U and As exceed the technical reference values for consideration as phytotoxic in soils.
Land use associated with reclamation practices is an indicator of a positive influence on improving soil quality.
Does harmonization reduce the impact of SPS measures on agricultural exports? An assessment from the Chilean fruit sector
Authors: Boza Sofia , Muñoz Jazmín , Cáceres Javiera
Published: July 2023

Non-tariff measures (NTMs) are relevant to agricultural trade policies, especially since trade negotiations have significantly decreased tariffs. Countries impose Sanitary and Phytosanitary Measures (SPS), a technical NTM, to protect human, animal, and plant health by regulating specific food quality and safety aspects. This article aims to assess the impact of SPS measures imposed by Chile’s main trading partners on agricultural trade, specifically on the value of fruit exports. It also seeks to determine the effects of harmonizing technical regulations between Chile and its partners. We estimated a gravity equation as a negative binomial regression model with Chilean fruit exports to main destination markets from 2010 to 2019 as the dependent variable. Our results confirm a negative impact of foreign SPS measures on Chilean fruit exports. However, that impact is mitigated if Chile has a harmonized SPS measure. Thus, we can conclude that harmonization reduces the negative effects of foreign SPS measures on exports. Our results suggest that trade agreements, which often contain a chapter on SPS, positively contribute to SPS harmonization and mitigate SPS’s negative impacts on trade flows.
Highlights:

Sanitary and Phytosanitary Measures (SPS), aim to protect human, animal, and plant health by regulating specific food quality and safety aspects.
The impact of SPS on trade flows has been largely analyzed with heterogeneous results depending, among others, on their characteristics, as the level of harmonization.
Harmonization reduced the negative effects of SPS measures on Chilean fruit exports flows.
Trade negotiations might positively contribute to SPS harmonization, especially whether agreements have an SPS chapter that encourages coordination.
Control capacity of the LPSc 1067 strain of Beauveria bassiana (Ascomycota: Hypocreales) on different species of grasshoppers (Orthoptera: Acrididae: Melanoplinae), agricultural pests in Argentina
Authors: Pelizza Sebastian Alberto , Mancini Micaela , Russo Leticia , Vianna Florencia , Scorsetti Ana Clara
Published: July 2023

Grasshoppers affect agriculture worldwide, causing serious economic damage. Currently, the application of chemical insecticides against grasshoppers is the only effective strategy, even considering the significant environmental concern. This study aimed to test the entomopathogenic fungi Beauveria bassiana (LPSc 1067) as biocontrol agent on six harmful grasshopper species in Argentina. Significant differences were observed (DF= 5; F= 9.93; P<0.0001) when considering B. bassiana pathogenicity on third-instar nymphs of the different grasshopper species. The highest mortality (100%) was registered on Trimerotropis pallidipennis and Dichroplus maculipennis nymphs while the lowest mortality (48.6 ±3.5%) was observed on Scotussa lemniscata nymphs. The lowest mean survival time (MST) was recorded for T. pallidipennis (3.5 ±0.15 days) and the highest MST was observed on Dichroplus pratensis nymphs (7.48 ±0.28 days). Results suggest that B. bassiana LPSc 1067 may constitute an excellent candidate to be further studied as biological control agent of T. pallidipennis and D. maculipennis.
Highlights:

Melanoplinae grasshoppers include several species considered plagues.
Entomopathogenic fungi as biocontrol agents are considered excellent alternatives to chemical control.
The efficacy of bassiana (LPSc 1067) on six grasshopper species of Argentina.
The isolate LPSc 1067 could be considered a biological controller pallidipennis and D. maculipennis.
Serological relationships among strains of grapevine leafroll-associated virus 4 reflect the evolutive behavior of its coat protein gene
Authors: Gomez Talquenca Sebastian , Lanza Volpe Melisa , Setien Nancy , Gracia Olga , Grau Oscar
Published: July 2023

This research studied serological relationships and genetic diversity of Argentinean isolates of grapevine leafroll-associated virus-4 (GLRaV-4). Phylogenetic analysis of coat protein (CP) sequences from 19 local isolates revealed clustering with the previously described GLRaV-4 strain 5, strain 6, and strain 9 groups. Evolutionary sequence analysis of the obtained and database-available sequences showed evidence of recombination events. Additionally, both CP N- and C-terminal regions appeared to be under purifying selection, but the N-terminal region presented seven sites under positive selection, with a dN/dS ratio 5-fold greater than that of the C-terminal region. Serological reactivity against monoclonal antibodies supports a higher occurrence probability for linear epitopes in the N-terminal region, as inferred by the sequence analysis. The obtained results reflect an unusual evolutionary behavior of the CP that, together with protein serological reactivity, suggests biological significance of the observed variability.
Highlights:

The occurrence of GLRaV-4 strains -5, -6 and -9 was recorded in Argentina.
The coat protein sequence showed a highly variable N-terminal region among the strains.
An evolutionary analysis inferred the occurrence of sites under positive diversifying selection pressure.
The most variable region of the coat protein presented the highest probability of occurrence of linear epitopes.
PCR identification of lactic acid bacteria populations in corn silage inoculated with lyophilised or activated Lactobacillus buchneri
Authors: Maia dos Santos Ana Paula , Santos Edson Mauro , Silva de Oliveira Juliana , Garcia Leal de Araújo Gherman , De Moura Zanine Anderson , Martins Araújo Pinho Ricardo , Costa do Nascimento Thiago Vinícius , Fernandes Perazzo Alexandre , Ferreira Daniele de Jesus , Da Silva Macedo Alberto Jefferson , De Sousa Santos Francisco Naysson
Published: July 2023

This study aimed to evaluate the effect of inoculation with lyophilised and/or activated Lactobacillus buchneri on lactic acid bacteria populations in corn silage. Experimental treatments consisted of corn silage without additives or silage with the inoculants of L. buchneri (1 x 105 cfu/g) applied according to the manufacturer’s recommendations (1 g/tonne fodder) in the forms of the lyophilised inoculant and pre-activated inoculant. Purified isolates from corn silage with and without the inoculant were identified, and 93% of the isolates corresponded to the lactic acid bacteria of the species Lactobacillus plantarum. Among the isolates, no bacteria of the species L. buchneri were detected. The application of lyophilised or activated L. buchneri improved the microbiological profile and reduced ethanol production in corn silage, even without being identified among the isolates captured 70 days after ensilage.
Highlights:

Lactic acid bacteria showed greater development at 7 days of fermentation.
Lactobacillus plantarum predominated at 70 days, representing 93% of the total LAB population.
Lactobacillus buchneri improved its microbiological profile with decreased ethanol production.
Estudiantes, organizaciones y luchas en Argentina entre 1966 y 1976. Un análisis cuantitativo
Authors: Califa Juan Sebastián , Millán Mariano
Published: July 2023

En este artículo analizamos la evolución del movimiento estudiantil en Argentina entre los golpes de Estado de 1966 y 1976 a partir de un examen cuantitativo de sus enfrentamientos sociales en la UBA, la UNLP, la UNC, la UNR y la UNT. La descripción de las tendencias nacionales en materia de cantidad, formas, escenarios, reclamos y alianzas observados en las acciones, sus covariaciones y las similitudes o diferencias según los casos conducen a distinguir tres etapas bien diferenciadas: la resistencia de 1966, el ‘68 largo de 1969 a 1971/72 y la institucionalización fallida del tercer peronismo. Nuestros hallazgos cuestionan la hipótesis usual de una asociación entre peronización y radicalización e invitan a indagar sobre el gravitante reformismo universitario en tiempos de revolución.
Perpetuation of Phoma naikii in the crop debris of pigeonpea
Authors: Sahana S , Savitha A S , Ajithkumar K , Sreedevi S C , Sreenivasa A G
Published: July 2023

Infected debris such as leaves, stem, petiole and twig could be an important source of survival for the pathogens and source of inoculum for the subsequent spreads from one season to the next and from one area to another area. This study was conducted to determine the length of survival of Phoma naikii in the infected pigeonpea debris under different storage conditions viz., room, refrigerator, pot and field conditions. Under pot conditions, the samples were buried under 5 and 7.5 cm and one set were placed on surface of the soil. These samples were subjected for isolation at 15 days interval incubated at 25 ±2 oC. The observations were recorded for growth and development of pathogen in the tissues after a week. The results revealed that frequency of recovery of pathogen decreased over time and the fungus was capable of overwintering for 23 weeks (% reduction was 86.66-6.66) in infected debris buried in sterilized soil regardless of burial depth. It has survived for 27 weeks (% reduction was 93.33-13.33) in field conditions, 30 weeks (% reduction was 100.0-20.0) on surface of soil, 34 weeks (% reduction was 100.0-20.0) in room conditions and 36 weeks (% reduction was 100.00-26.66) in the refrigerated conditions. Hence, the present study indicates the variation in the viability of the pathogen in the infected debris stored ate six different conditions.
Effect of bio control agents and botanical extracts on antioxidant activity in chilli fruits
Authors: Sonakar Vinod Kumar , Chandra Ram , Behera Lopamudra
Published: July 2023

Chilli fruit are good antioxidant sources and hold promise as natural ingredients in functional foods. Many other types of carotenoids accumulate in the fruit during the ripening process, for example, β-carotene, violaxanthin, lutein, and zeaxanthin. The present experiment was carried out to Effect of bio control agents and botanical extracts on antioxidant activity in chilli fruits. Chilli seedlings were treated with individually and in combination with effective bio control agents and botanical extracts in field condition applied as seedling treatment and foliar spray. Efficacy of botanical extract and bio control agents on antioxidant activity of fruits of chilli plant applied seedling treatment and foliar spray with T. Viride + P. Fluorescens + Neem + Garlic showed higher β-carotene and capsaicin content in chilli fruits in comparison to control. Maximum β-carotene (3.56 mg/mL) and capsaicin (2831.67µg/g) content were recorded in chilli fruits respectively. These antioxidants sources are responses to disease resistant against pathogen and benefiting the digestive tracts, promote healthy heart, relieve joint pains, promote weight loss, mitigate migraine, reduce cancer risk, prevent allergies etc.
Significant Causative Agents That Cause Toxicity in Mushrooms
Authors: Narang Vanika , Banerjee Shubhanjali , k Anchal , Kapoor Pooja
Published: July 2023

Worldwide outbreaks of food-related illnesses brought on by wild mushroom poisoning have raised questions about food safety. On an annual basis, we hear a lot of stories from all over the globe concerning people eating toxic mushrooms. Scientists are interested in it, notably in the areas of hazardous substance composition, process, and its use in poisonous mushrooms. The toxins which are present in poisonous mushrooms are quickly taken in by blood vessels and travel straight towards their aimed target despite withstanding the extremes of the temperature of cooking and the digestive acids. However, patients must be aware that in 95% of instances, the nature of fungus and toxins is unknown, thus evaluation and therapy rely on the symptoms they are experiencing at the time of hospitalization. Clinical syndromes associated with mushroom poisoning include fulminate hepatic failure, immediate failure of the renal system, rhabdomyolysis, erythromelalgia, haemorrhage, gastroenteritis, mental disturbance, and irritation of the skin. The aim of this review is to explain poisonous mushrooms, the medical symptoms of toxic mushrooms, different noxious, and how they are used medically.
The Cultural and Morphological Variability of Botrytis sp. isolates Causing Grey Mould of Gladiolus in India
Authors: Kaur Gurvinder , Negi Hoshiyar Singh , Ghosh Pallavi
Published: July 2023

The gladiolus is one of the important cut flower with the utmost commercial value in India. Gladiolus has about 180 species and over 30,000 cultivars, of which over 20 are produced in India for production of flowers commercially. Botrytis grey mould (BGM) caused by the fungus Botrytis cinerea is one of the most destructive disease of the gladiolus. In a present study, a total 35 isolates of Botrytis were obtained from the gladiolus surveyed area. Colony morphological studies (texture, form, color, production and degree of sporulation) has been conducted using three types of solid media i.e. PDA (Potato Dextrose Agar), Czapeck’sDox Agar, Kritzmen and Netzer Agar medium. All B. cinerea strains gave maximum fungal mycelium growth on PDA (90.0 mm to 87.5mm) and CDA than K and N medium. Spores of Botrytis cinerea was also observed under Scanning Electron Microscope (SEM) and Phase Contrast Microscope (PCM) for conidial size and number of conidia. Maximum conidial size was recorded on PDA in comparison to CDA and KN media.
Effect of botanicals and bioagents on disease intensity and cost-benefit ratio of Sponge Gourd
Authors: yadav Shiv kumar , kumari Ruchi , Tiwari Shashi
Published: July 2023

As the population grows, it is crucial to create a yield that will feed the expanding population. To do this, it is required to control diseases in crops, vegetables, and fruits because they are a major cause of production losses. Different illnesses harm sponge gourd, which reduces output. Many pesticides are being utilized, which is lowering the soil's quality, to address this problem. In addition to polluting the environment, these chemicals also cause soil pollution. Pathogens now exhibit resistance as a result of the usage of specific fungicides. From the bioaccumulation of contaminants in food chains to their widespread use in terrestrial and aquatic ecosystems, synthetic pesticides have a detrimental effect on human health. Bioagents and botanicals are secure alternative methods for the management of diseases that can be used to solve this problem. These botanicals and bioagents are safe for the environment and maintain the soil's quality.
Design of animal drawn cereal grains no-till planter
Authors: Ghebreyesus Mehari Ghebreyesus Mehari , Tesfay Yared , Habteab Luwam Habteab Luwam , Eyob Mehari , Beyene Yonatan , Tewelde Rteei , Ahmad Jawed , Naqvi Syed Danish Yaseen
Published: July 2023

The development of no-till system in Eritrea presents a significant opportunity to achieve earlier and more timely planting. Tillage wastes a lot of time, energy and a lot of money in the form of fuel, labor and equipment concerning with the life style of Eritrean farmers. Therefore, to solve this problem animal drawn no-till planter is designed to make the farming operation easy and efficient, simple to operate, it reduces the amount of work for tillage and it combines several steps of tillage in machine. No-till system can be designed in different forms of tractor mounted, manual operated and animal drawn planter. These mechanized systems would introduce additional barriers to adoption including the high cost of investment, availability and cost of fuel and the need to use syndication ownership models. So due to the economical standard living of local farmers animal drawn no-till planter is more efficient for small holder farmers. Animal drawn no-till planter is designed with a pulling force 73.5kgf: walking speed of 0.6m/s and with the frame dimension of 1000mmx450mmx50mm. The equipment’s used in this design are made locally available, making the overall cost cheap and affordable to the farmers in contrast with no-till planter imported from overseas so that farmers do not face difficulties in obtaining these planters and providing a basic saving from budgeting a large amount of currency for importing a conventional tiller machine. To attain better accuracy, fabrication of the designed animal drawn planter in the actual field with local materials is advisable to give major concern in the future work. And also, testing and evaluation performance of the animal drawn no-till planter is highly recommended.
Impact of beneficial microorganisms on the growth, yield and shelf life of African marigold
Authors: Kumar Navdeep , SINGH DHAN , Hemanta Laishram , Abdul Rahman M , Sonkar Manish Kumar
Published: July 2023

The present investigation entitled “Impact of beneficial microorganisms on the growth, yield and shelf life of African marigold” was conducted in the instructional cum research farm department of horticulture, School of Agricultural Sciences and Rural Development, Medziphema, during the month of November 2021 to March 2022. A field experiment was conducted in Randomized Blocks Design with three replications. Bio-formulations were used as a treatment to assess the impact of beneficial microorganisms on the vegetative, flowering and yield parameters of African marigold. Treatment consists of Water soaked (Control), PSB, Jeevamrutha, Microbial consortia, IEM (Indigenous effective micro-organisms), Pseudomonas fluorescence, Trichoderma harzianum, results reported that highest plant height (71.73 cm), number of primary branches (12.30), plant spread (51.20 cm2) and leaf length (14.3cm), leaf width (6.50 cm), earliest flower bud initiation (54.43 days), first flower opening (60.86 days) and 50% flowering opening (75.46 days), flower diameter (5.86 cm), fresh flower weight (10.70 g), duration of flowering (41.13 days), number of ray florets per flower (193.66), number of flowers per plant (39.40), the weight of flower per plant (421.57 g), weight of flower per plot (6.745 kg), shelf life (4.70 days), and estimated yield/ha (263.47 q) were recorded with the use of Trichoderma harzianum. The present investigation suggests further work to understand impact of beneficial microorganisms that contribute to increasing the growth, yield and shelf life of African marigold.