bluuebunny/crossref_metadata_2025 huggingface dataset:
Benjamin Bergmann’s Nomadische Streifereien unter den Kalmȕken in den Jahren 1802 und 1803: Introducing Russian Translations of Six Letters
Authors:   Kalmyk Scientific Center of the RAS, Bayanova Aleksandra
Published: February 2022

Introduction. The impact of Benjamin Bergmann — a renown religious figure, writer and translator — in Kalmyk folklore studies is immense. He authored the earliest European documented record of the Kalmyk heroic epic of Jangar, German translations of the Buddhist treatise titled ‘Mirror of Reality’ and two songs of the Gesar epic, thirteen folktales from the Siddhi Kür collection, etc. Goals. The article introduces B. Bergmann’s letters included in the 1804 German-language edition of his Nomadische Streifereien unter den Kalmȕken in den Jahren 1802 und 1803 (Germ. ‘Nomadic Wanderings among the Kalmyks in 1802–1803’) published in Riga. Materials. The study explores and translates into Russian the first six letters containing ethnographic observations. Results. B. Bergmann’s scholarly insights into religion, language, lifestyles, and history of the Kalmyks to have compiled the edition were to lay the foundation of his work at the Russian Imperial Academy of Sciences which unfortunately never happened. The meticulousness of his accounts and descriptions testify of his decent proficiency in ethnography and folklore investigations.
Archaeological Burial Monuments of the Volga-Manych Steppe: A Review of Excavations, 1998–2009
Authors:   Kalmyk Scientific Center of the RAS, Bembeeva Lyubov , Ochir-Goryaeva Maria ,   Kalmyk Scientific Center of the RAS
Published: February 2022

Introduction. The work continues the Collection (Corpus) of archaeological monuments to have published data on sites excavated between 1929 and 1997 inclusive. Goals. The paper introduces further data on burial sites investigated from 1998 to 2009 in the Volga-Manych steppe, the latter largely matching the borders of Kalmykia. Materials and Methods. The review focuses on burial monuments only, and data on excavated habitats (settlements and hillforts) — including outcomes of archaeological reconnaissance — shall be examined in separate publications. Results. The period under consideration witnessed excavations of 117 kurgans to have contained 413 burials. The bulk of the latter numbering 241 are dated to the Bronze Age and primarily cluster with the Catacomb culture. Burial monuments of nomads from the Early Iron and Middle Ages number 77 and 60 respectively. Statistical analysis is supplemented with spatial one, and special attention is paid to most remarkable features of archaeological burial grounds explored during the mentioned years.
De calendarios, memoria y celebraciones. 50 años del SUAyED, UNAM
Authors: Martínez Hernández Ana María del Pilar
Published: February 2022

Inicia un nuevo año y con él la aparición del primer número de la Revista Digital Universitaria de 2022. Cada comienzo de ciclo se asocia a prácticas sociales vinculadas con ese acontecimiento. Buenos propósitos y metas por alcanzar aparecen en nuestra vida. De manera simultánea, encontramos multiplicidad de agendas y calendarios en los que se precisan informaciones múltiples.
SUAyED como una oportunidad para alcanzar tus sueños
Authors: Lugo Bolaños Grisel
Published: February 2022

En el siguiente testimonio se abordan las facilidades de estudiar Pedagogía en el sistema de educación a distancia de la Facultad de Filosofía y Letras de la UNAM, destacando la flexibilidad de horarios, la accesibilidad, la calidad y el sentido de pertenencia universitario, a partir de la experiencia de una estudiante de la generación 2018.
Sistema abierto y letras hispánicas: el viaje a través de un agujero de conejo
Authors: Carranco Morgana
Published: February 2022

En este testimonio se comparte la experiencia de cursar la Licenciatura en Lengua y Literaturas Hispánicas en el Sistema de Universidad Abierto y Educación a Distancia de la Universidad Nacional Autónoma de México. Se abordan las razones y motivaciones para estudiar una carrera en el sistema abierto, así como los aprendizajes a nivel personal y profesional.
De vuelta a la realidad: el doble compromiso de los investigadores en medios comunitarios
Authors: Peña Flores Esmeralda
Published: February 2022

El trabajo de campo lingüístico-antropológico puede establecerse a partir de dos tipos de investigador: internos (originarios de la comunidad de estudio) y externos (investigadores foráneos). La figura extendida e idealizada de un investigador se inclina a ser de tipo externo y con base en ella se teorizan un vasto número de metodologías que exponen pautas y procedimientos para acercarse a la comunidad de estudio. Sin embargo, la experiencia y reflexiones realizadas durante mi trabajo de campo en mi comunidad de origen, me llevan a plantear que no es posible comparar la labor de un investigador externo con uno interno, puesto que los retos, compromisos y formas de actuar de un investigador comunitario están en plena función con su rol social como integrante de la comunidad.
Videojuego para la enseñanza de celdas solares: Diseño e integración al aula
Authors: Corpus Mendoza Asiel Neftalí , Cortés Díaz Ana Belén , Moreno Romero Paola Marcela , Torres Herrera Mateus , Rodríguez Castañeda Carlos Alberto
Published: February 2022

Nuestro Sol es un proveedor inagotable de energía para la vida en la Tierra. Su luz puede ser aprovechada y convertida en electricidad por medio de tecnologías fotovoltaicas para beneficio de la vida humana. Sin embargo, el desarrollo de dichas tecnologías requiere de una variedad de conocimientos que incluyen áreas de física, química, ingeniería eléctrica y electrónica, ciencia de materiales, entre otras. Esto representa un reto en el proceso de enseñanza-aprendizaje para profesores y estudiantes de carreras afines, así como un obstáculo en la motivación de ambos. Por lo tanto, en este artículo se propone utilizar un videojuego sencillo, ilustrativo, interactivo y divertido que facilite el aprendizaje de un tema abstracto, multidisciplinario y complejo como la fabricación y caracterización de celdas solares de perovskita híbrida. En este videojuego, los estudiantes son libres de fabricar celdas solares. Cada etapa de construcción requiere decisiones con impacto directo en la eficiencia del dispositivo construido, en otras palabras, la proporción de energía solar convertida en electricidad. Además, cada decisión involucra los conceptos básicos de química y física de materiales, así como teoría de semiconductores aprendidos en el aula. Así, los estudiantes pueden aprender sobre la fabricación de celdas solares en una forma interactiva, eficiente y amigable.
Cryptographic Algorithm Based on Prime Assignment
Authors: Mahalakshmi M.
Published: February 2022

Abstract: Cryptography is a concept of protecting information and conversations which are transmitted through a public source, so that the send and receiver only read and process it. There are several encryption and decryption algorithm which involves mathematical concepts to provide more security to the text which has to be shared through a medium. In this paper, an algorithm is provided for both coding and decoding using cyclic symmetric matrices. Also ࢘ࢋ࢒࢛ࡱ ࢚࢔ࢋ࢏࢚࢕࢚ ࢔࢕࢏࢚ࢉ࢔࢛ࢌ ,prime numbers are employed here. Furthermore, algorithm using prime number in integers is extended to prime numbers in Gaussian integers. This concept increases the security of the text. Keywords: Cryptography; encryption- decryption algorithms; Gaussian primes; cyclic symmetric matrix. 2010 MSC Subject Classifications - 11T71, 11C20, 11A25, 11R04.
The fire-safe application of acoustic materials in cultural and entertainment buildings
Authors: Konstantinova N. I. , Smirnov N. V. , Zuban A. V. , Zuban O. P.
Published: February 2022

Introduction. In theatre and concert halls, acoustic environments are created, among other things, by wall and ceiling panels, that have special sound absorption properties. However, modern materials demonstrating the required acoustic properties do not necessarily comply with effective fire safety regulations.Aims and purposes. Modern acoustic panels, made of mineral fibers, are among the most effective ones in terms of sound absorption; they also provide wide opportunities for the high-quality design of auditoriums.Despite the non-combustible basic component, high acoustic performance of such decorative items is attained thanks to a set of supplementary materials that have different chemical compositions, structures, physical and mechanical properties, which, in the aggregate, slightly reduce fire safety.Due to the lack of fire safety requirements applicable to special materials that perform the function of sound absorption, their usability in auditoriums of buildings and structures is confirmed, as a rule, according to the standards that apply to traditional decorative and finishing materials. At the same time, the use of high-performance acoustic materials is problematic due to rather strict fire safety requirements for decorative and finishing materials designated for walls and ceilings.The purpose of this work is to conduct analytical studies on the effective regulatory framework of the fire-safe use of acoustic materials, perform comparative experimental studies on the assessment of their fire-technical characteristics to study the feasibility of drafting proposals on their acceptable use on the premises and in the halls of cultural and entertainment facilities.Results and discussion. Analytical studies were conducted to identify the most effective sound-absorbing finishing materials that feature lower fire hazards. They are mineral wool products made of glass fiber or stone wool. A set of fire hazard indicators, typical for acoustic decorative materials, made of mineral fibers, were subject to comparative experimental studies for the purpose of their legitimate fire-safe use in public auditoriums.The co-authors found that the requirements, applicable to acoustic materials designated for walls and ceilings, can be issued as amendments to effective regulatory and technical documents on fire safety.Conclusions. The co-authors proposed amendments to effective fire safety regulations in respect of the requirements applicable to acoustic materials designated for walls and ceilings of auditoriums.
The analysis of the fire resistance limit of an enclosing wall with a wave-resisting visor as the protection for a group of fuel oil tanks
Authors: Shvyrkov S. A. , Yuryev Ya. I. , Petrov A. P. , Nazarov V. P.
Published: February 2022

Introduction. An enclosing wall with a wave-resisting visor may be installed to resist the flow of a liquid spill during a tank collapse in accordance with GOST R 53324-2009. This wall should be continuous along the perimeter; it must be made of incombustible materials and have the fire-resistance limit of not less than E 150. As a rule, varieties of heavy concretes are used to construct these walls. However, the actual fire-resistance limit of a structure depends on both its geometric parameters, thermal characteristics and strength properties of concrete used in the case of the long-term exposure to the hydrocarbon fire regime. The work addresses the assessment of the actual fire resistance limit of an enclosing wall with a wave-resisting visor made of heavy concrete designed as the protection for a group of tanks at fuel oil facilities of a thermal power plant.Calculation methodology and results. The calculation of the actual fire resistance limit of an enclosing wall with a wave-resisting visor, designated for a group of fuel oil tanks was performed. The co-authors used the results of studies on the substantiation of a hydrocarbon fire resulting from a flammable liquid spill and a tank failure, empirical dependences for determining the thermal engineering parameters of heavy concrete, as well as experimental data on a change in the compressive strength of concrete at temperatures up to 1,200 °C. The calculation results show that this wall structure can maintain stability for more than 10 hours. Note that the load-bearing capacity of the wall is more than 11 times greater than the bending moment triggered by the standard load. Indeed, the fire resistance of the wall is not less than RE 600. It exceeds the normative values for these types of walls by a factor of four.Conclusions. A common algorithm can be used to calculate the actual fire-resistance limit of enclosing walls of oil and petroleum product tank storage facilities, set by Construction Regulations 468.1325800.2019. At the same time, the results of the above theoretical and experimental studies are recommended for use as the initial data.
Prediction of hydrostatic strength of spheroplastics
Authors: Lebedev V. L. , Kosulnikov V. Yu. , Sery P. V. , Troshkin S. N. , Аnisimov A. V.
Published: February 2022

In this work, calculations of the hydrostatic strength of a spheroplastic are carried out using the previously described empirical formula. The calculations were based on the physical and mechanical characteristics of the polymer binder and hollow glass microspheres. Measurements of the physical and mechanical characteristics of the polymer binder, hollow glass microspheres and spheroplastics were performed with standard methods: dynamic mechanical analysis (DMA), gas and hydrostatic pycnometers. The results of tensometric tests of Poisson’s ratios of binders were also used. The hydrostatic strength measurements were carried out in a high pressure hydrochamber. Comparison of the calculations and experimental data for a number of spheroplastic compositions based on multicomponent epoxy binders is carried out. The degree of influence of the properties of microspheres and binders on the hydrostatic strength of a spheroplastic is shown. The correlation of the calculated values with experimental knowledge is assessed.
Study of the metal of the irradiated weld of the WWER-440 reactor body after 45 years of operation
Authors: Erak D. Yu. , Chernobaeva A. A. , Medvedev K. I. , Zhurko D. A. , Kochkin V. N. , Skundin M. A. , Bubyakin S. A. , Pal N. V. , Reshetnikov A. A.
Published: February 2022

This work presents the results of a study of the mechanical characteristics and chemical composition of metal samples cut from a non-irradiated weld seam of a WWER-440 reactor vessel after 45 years of operation. The calculated distribution of the critical temperature of brittleness over the thickness of the irradiated weld seam of the WWER-440 reactor vessel (140 mm) is obtained taking into account the distribution of the initial properties, the content of phosphorus and copper, and the density of the fast neutron flux over the thickness of the seam. Since all the circumferential welds connecting the shells in the WWER-440 reactor vessel are manufactured using the same technology, the results of the study of the non-irradiated weld can be used to assess the distribution of properties in the irradiated weld. At the same time, it is assumed that the effect of thermal aging at a temperature of 270°C (operating temperature of a non-irradiated weld) is small and can be neglected.
On the formation of recrystallization nuclei in austenitic nitrogencontaining steel under hot deformation
Authors: Fomina O. V. , Zisman A. A. , Vikhareva T. V.
Published: February 2022

This article presents the results of studying the structure of high-strength corrosion-resistant austenitic nitrogen-containing steel formed as a result of hot deformation. It was found that, depending on the temperature, degree and rate of deformation, the mechanism of formation of nuclei of dynamic recrystallization changes. At temperatures above 1100°C, nuclei are formed due to bending and subsequent migration of grain boundaries; however, with a decrease in temperature and an increase in the degree and rate of deformation, subgrains become centers of recrystallization near the initial boundaries.
Investigation of the microstructure of the base and weld metal of steel Fe–0.08C–18Cr–10Ni–Ti after low-temperature irradiation in the BOR-60 reactor in the range of damage doses from 40 to 101 displacements per atom
Authors: Neustroev V. S. , Markelov D. E. , Obukhov A. V. , Margolin B. Z. , Pirogova N. E.
Published: February 2022

The microstructures of irradiated samples of Fe–0.08C–18Cr–10Ni–Ti steel were studied by transmission electron microscopy (TEM). Specimens of the base metal (BM) and the weld metal (WM) were irradiated in the BOR-60 reactor at temperatures from 330 to 350°C to doses of 43 dpa (BM) and 40 dpa (WM), 96 dpa (BM) and 101 dpa (WM). New data on the quantitative microstructural characteristics of dislocation loops, titanium carbonitrides, fine G-phase, and voids in irradiated specimens in the range of damage doses from 40 to 101 dpa were obtained during the studies of specimens of the base metal and the weld metal.
Formation of austenite in ferrite-beinite, beinite-martensite and martensitic shipbuilding steels and its influence on the transformed structure
Authors: Korotovskaya S. V. , Sych O. V. , Khlusova E. I. , Anisimov D. M.
Published: February 2022

This article investigates the kinetics of austenite grain growth during heating and the features of phase transformations depending on the austenite grain size in ferrite-bainitic, bainite-martensitic and martensitic shipbuilding steels. The kinetics of dynamic and static recrystallization is studied depending on the holding time at a given temperature. The studies carried out made it possible to determine the effect of the austenite grain size in shipbuilding steels of manganese, manganese-nickel and nickel alloying composition on the transformed structure.
Methodology of scientific selection of accumulation modes and preliminary heat treatment of forgings made of medium carbon medium alloy steels
Authors: Tsukanov V. V. , Smirnova D. L. , Efimov S. V.
Published: February 2022

This article considers issues related to the forgings from medium-carbon medium-alloyed steel grades. It is necessary to take into account the processes of phase and structural transformations when assigning modes of accumulation of ingots after forging and preliminary heat treatment (PHT). The main provisions of the appointment of PHT modes were analyzed. The paper formulates their limited application when using diagrams of isothermal transformation of austenite, built according to standard techniques.
Estimation of the influence of the structural state on the mechanical properties of steel 14Kh17N2
Authors: Chegurov M. K. , Cheerova M. N. , Gorshunov M. G. , Berdnik O. B.
Published: February 2022

The issues of ensuring the stability of the structural state and mechanical properties are very relevant for production in the manufacture of products, as well as for assessing their quality and extending the resource. The article presents the results of a study of the influence of heat treatment parameters on the structural characteristics of steel-martensitic-ferritic class 14X17H2, the impact of structural parameters on mechanical properties is assessed.
Plasma protective ceramic coating of the Al2O3–Ni system from cladded powder mixture
Authors: Tsareva I. N. , Krivina L. A. , Berdnik O. B. , Razov E. N.
Published: February 2022

To solve the problem of increasing the adhesive-cohesive strength of multifunctional plasma coatings used to protect parts of power and machine building equipment from wear and corrosion, a ceramic coating of the Al2O3–Ni system, obtained from a powder mixture based on corundum clad nickel. The coating was applied by the method of high-energy plasma powder spraying (on the “Thermoplasma” installation) on the intermetallic sublayer of the Ni–Co–Cr–Al–Y system. The aim of this work was to study the microstructure, phase composition, mechanical, tribological and adhesion properties of a plasma ceramic coating formed from a powder material based on aluminum oxide clad with a refractory metal component (nickel). According to the research results, it was found that the initial powder material has a multi-phase composition (Ni + α-Al2O3 + γAl2O3) and a spherical morphology of particles. From it, during high-energy plasma spraying, a coating is formed with a phase composition (Ni + γ-Al2O3 + γ'-Ni3Аl), a layered microstructure with nickel interlayers and a columnar structure of oxide grains. The coating has high values of hardness and adhesive-cohesive strength, low coefficient of friction and is recommended for wear protection of parts of power engineering and mechanical engineering.
Formulation And Evaluation Of Metronidazole Benzoate Loaded Proniosomes For Topical Delivery
Authors: S .Muthukumar , C .Sankar , K .Swetha , R. Pradeepa , B .Muneeswaran , M .Noori Irfna Parvin , J Sangeetha.
Published: February 2022

In the modern times, vesicular system is a well-known carrier for delivery of drugs. They can carry both lipophilic and hydrophilic drugs. Proniosomes are a vital member of novel drug delivery carriers. The present study was aimed to develop and prepare Metronidazole Benzoate loaded proniosomes with different ratios of cholesterol and non-ionic surfactants to prolong the drug release on topical administration. By slurry method, about fourteen formulations were prepared and evaluated for angle of repose, drug content, particle size, hydration rate, encapsulation efficiency, in-vitro release studies & ex-vivo drug permeation studies. The optimized formulation of proniosomes was developed into transdermal patch and was subjected to various evaluation studies. The in-vitro kinetic and diffusion study of the patch showed a release of 80.71% over 12hrs and fitted into zero order and non-fickian diffusion mechanism. It was summed up, that the formulation F12 containing surfactant: cholesterol as 1:1 was the best formulation. Incorporation into proniosomes can lead to reduced dose, improved bioavailability and prolonged release. Further formulating in form of transdermal patch allows controlled release of the drug. UV spectrophotometric method was developed for determining Metronidazole benzoate in 5% ethanol at 309nm. A regression coefficient value of 0.9977 was noticed. The SEM image as well as the FT-IR spectrum of the optimized formulation was taken to support the same. Hence, we conclude that the proniosomal formulation is a vital candidate for transdermal delivery of metronidazole benzoate in the treatment of various systemic as well as topical bacterial infections
Socioeconomic Status of Family And Availability of Home Affordances for Motor Development
Authors: Ms Sumandeep Kaur  , Kaur Randhawa Dr Rajwant
Published: February 2022

Stimulating home environment and variety of home affordances are essential for optimum growth and development of an infant, especially motor development at early developmental stages. Affordances in home environment for motor development-infant scale (AHEMD-IS) is a recently developed and validated tool for assessment of home affordances for motor development and it has been used in many studies. However, there is a little data from the Indian subcontinent related to the relation of socioeconomic status of the family and home affordances for childhood development. Main objective of the study was to evaluate the association between the home affordances for motor development and the socioeconomic status (SES) of the family. Total 460 infants in the age group of 3-18 months were enrolled in the study. AHEMD-IS tool was used to evaluate the home affordances and socio-economic status was evaluated from family income, social-class and educational status of the parents by using Kuppuswamy scale. The results of this study showed that in the baseline family profile of the studied families, most of the families were in lower middle class and majority of parents had high school education, most of families had one child or another sibling of the study infant, and two adults residing in the family. On applying Kruskal Wallis test it was found that all aspects of AHEMD-IS had positive correlation with family SES. Socioeconomic status has an important impact on availability of home affordances for motor development; although many dimensions of home affordances have wider scope of modification, so as to customize them for better motor development irrespective of family SES.
Antalya'da Bir Deniz Akvaryumu Su Temini Sisteminin Çevresinde Gözlenen Bentik Makrofauna Örnekleri
Authors: Gökoğlu Kemal , Kuşat Mete
Published: February 2022

Bu araştırma 2018 yılı içerisinde, Konyaaltı plajı (Antalya) yakınında kurulmuş olan bir deniz akvaryumunun su tedarik ünitesinde yapılmıştır. Çalışmada, su alım ünitesi etrafında bulunan makro omurgasız faunasına ait bazı türlerin belirlenmesi amaçlanmıştır. Araştırmada Echinodermata(derisidikenliler)’dan Synaptula reciprocans, Arbacia lixula ve Diadema setosum,Crustacea (Kabuklular)’dan Charybdis hellerii, Percnon gibbesi, Portunus pelagicus, Balanus sp. ve Scyllarides latus, Mollusca (Yumuşakçalar) ya ait Bivalvia sınıfından Pinctada radiata, Spondylus spinosimus, Chama pacifica, Saccostrea cucullata, Saccostrea glomerata, Dendostrea frons, Malleus regulus, Ostrea edulis, Arca noae, Gastropoda sınıfından ise Hexaplex trunculus, Cerithium sp., Conomurex persicus, Ergalatax martensi, Coryphellina rubrolineata, Flabellina sp. ve Felimare picta’nın su temin ünitesini yaşam alanı olarak kullandığı belirlenmiştir. Ayrıca bölgede tunikatlardan Phallusia nigra, Microcosmus vulgaris ve Herdmania momus ‘un aynı sistem üzerinde bulundukları tespit edilmiştir.
Relação entre presenteísmo, síndrome de burnout e liderança ética em organizações escolares
Authors: Lourenço Viviane Pinheiro , Pérez-Nebra Amalia Raquel , Ferreira Aristides Isidoro , Kohlsdorf Marina
Published: February 2022

O objetivo deste trabalho foi descrever variáveis preditoras de presenteísmo no contexto escolar, especificamente o burnout e a liderança. Utilizaram-se questionários como instrumento de coleta de dados. Responderam aos questionários 366 professores vinculados à Secretaria de Estado de Educação do Distrito Federal. Eles trabalhavam em diferentes escolas de várias regiões do Distrito Federal. Foram testadas relações lineares e com interação. Os resultados obtidos mostraram que a exaustão emocional e a liderança ética estão relacionadas à concentração no trabalho. Contudo, não se relacionam com a perda de capacidade para completar o trabalho. Neste último, a liderança aparece como uma importante variável moderadora. Os altos níveis de exaustão emocional tendem a convergir negativamente em avaliações de liderança e presenteísmo. Este estudo contribui para a compreensão da relação entre bem-estar e produtividade e suas variáveis moderadoras, assim como aponta que a exaustão emocional no trabalho influencia a avaliação do professor.
Para além do Édipo: entre Deleuze-Guattari e Laplanche
Authors: Lima Vinícius Moreira , Bedê Heloísa Moura
Published: February 2022

O objetivo deste artigo é analisar as maneiras pelas quais o complexo de Édipo foi reelaborado nas formulações de Gilles Deleuze e Félix Guattari, bem como de Jean Laplanche. Tentamos mostrar que as formulações laplancheanas permitem responder a algumas das críticas levantadas pelos autores de O anti-Édipo. Tanto para Laplanche quanto para Deleuze e Guattari, o que está em questão é retomar o que cada um considera como a originalidade da descoberta freudiana: a prioridade do Sexual, no caso do psicanalista, e a prioridade do sexo não humano, no caso dos esquizoanalistas. Após apresentar os principais fundamentos de cada corrente, promovemos uma reflexão sobre as ligações entre o Édipo e as questões de gênero a partir das obras desses autores. Recorrendo também às contribuições de Judith Butler para esse debate, levantamos a hipótese de que as normas de gênero, ao instituírem um sexo binário, servem como suporte para a repressão e o recalque do Sexual e do sexo não humano, que desprezam o binário normativo homem-mulher ou papai-mamãe. Como resultado, acreditamos apontar, com Laplanche e as contribuições da esquizoanálise, para a possibilidade de uma psicanálise pós-edipiana ou, até mesmo, não edipiana.
Gravando
Authors: Carrijo Gilson Goulart , Simpson Keila , Rasera Emerson Fernando , Teixeira Flavia Bonsucesso
Published: February 2022

A produção de um documentário como estratégia de pesquisa no campo das ciências humanas ainda gera debate significativo. Buscando contribuir para esse debate, o objetivo deste artigo é apontar alguns desafios metodológicos que marcaram o processo de pesquisar/registrar/narrar um filme documentário sobre a trajetória de vida de Keila Simpson e seus entrelaçamentos com(na) história do movimento de travestis no Brasil. Assim, por meio de uma análise teórica, inicialmente, discutimos as disputas sobre o real e o verdadeiro que se (re)produzem na interação com as imagens. A partir de uma perspectiva etnográfica, então, refletimos sobre nosso percurso de realização do documentário, nas etapas de exploração e produção de esboços, apresentando possibilidades e limites de fazer/pensar/negociar um filme etnográfico sendo pesquisador/cineasta em interação com a interlocutora/narradora. Entendemos que o filme permitirá entender aspectos sensíveis da protagonista e suas relações de sociabilidade e, de forma indireta, compreender o sensível não diretamente abordado pelas imagens.
Na estrada de setas amarelas: esporte e turismo na peregrinação do Caminho de Santiago de Compostela
Authors: Labronici Rômulo Bulgarelli
Published: February 2022

O presente trabalho busca discutir, a partir de uma experiência etnográfica realizada durante a travessia do “Caminho de Compostela”, situado na região da Galícia/ Espanha, o processo de caminhar como uma atividade que engloba uma tríplice perspectiva de sentidos: turísticos, religiosos e esportivos, que se reconfiguram continuamente. Aqui, os conceitos de peregrinação religiosa, turismo transnacional e do esporte de aventura e desafio se apresentam como fontes analíticas para o entendimento de experienciação na qual os indivíduos realizam em suas jornadas. Além, disso, objetiva-se apreender o caminho como um percurso que se estrutura a partir de uma “malha” circuncêntrica que cobre grande parte da península Ibérica, onde o processo de andar o caminho vai permitir a ultrapassagem de fronteiras liminares (TURNER, 2005, 2008). Tais fronteiras aqui são entendidas como a da busca pela aproximação com o sagrado, para o peregrino; da superação individual do corpo e mente, para o esportista; e da experiência habitual e do desconhecido, para o turista. A viagem pode ser interpretada como uma forma de ritual, na qual o viajante sai de sua rotina e tem uma experiência “extraordinária”, liminar e, após esse período, retorna ao seu mundo cotidiano de certa forma transformado. Se por um lado a noção de “turista” absorve no campo uma conotação negativa, relacionada à esfera do consumo, sendo sua figura apresentada como “superficial” ou “inautêntica”, por outro, a noção de “peregrino” é exacerbada devido não só ao caráter de ruptura do cotidiano, mas, principalmente, à maneira “crítica” de se colocar, que é característica, na qual o despojamento material é condição para vivenciar a experiência. Por fim, trago como inspiração o conceito de “peregrinação” tal qual abordado por Ingold (2015): um processo de crescimento dentro de um campo de relacionamentos, no qual o Caminho de Santiago mimetiza o movimento da vida que cada indivíduo realiza com seus próprios pés.
A experiência significativa do ser mais ambiental na “comvivência pedagógica” – encontros em Paulo Freire
Authors: Guimarães Mauro , Granier Noeli Borek , Eder Sofia
Published: February 2022

Este estudo traz reflexões sobre as potencialidades da proposta da “comvivência pedagógica” para a formação de educadores ambientais, numa perspectiva crítica e a partir de discussões sobre os conceitos de “ser inacabado” e “ser mais” de paulo freire, tecidos com outros autores coadunados com a abordagem. Constata que no contexto de grave crise civilizatória a perspectiva epistemológica da modernidade, instituída sob o paradigma disjuntivo e reducionista nos processos socioambientais, combinado à visão utilitarista e antropocêntrica nas relações com a natureza, retroalimentam a crise. Dessa forma, a consolidação dos conceitos de “ser natural”, “ser mais ambiental” e do sujeito da experiência, como seres subjetivos que interagem no ambiente educativo proposto, enfatizam características necessárias para uma experiência significativa. Emergindo assim como sujeitos transformados e transformadores na radicalização do processo educativo, no sentido de identificação e descontrução de padrões hegemônicos, para a construção de outras formas de ser e estar no mundo.
Educação pelo diálogo e para o diálogo:
Authors: Coimbra Cecília Maria Bouças
Published: February 2022

Através das experiências vividas pela autora, nos anos de 1963-1964, como participante do Programa Nacional de Alfabetização (PNA) no Rio de Janeiro, são apresentadas – dentro do cenário histórico da época – uma série de projetos de educação de adultos, dando-se destaque ao PNA.O início dos anos de 1960 com suas turbulências, transformações, permanente alegria e agitação são aqui trazidos como pano de fundo para os movimentos de educação popular que eclodem naquele período: os CPCs da UNE (Centros Populares de Cultura da União Nacional de Estudantes), o MEB (Movimento de Educação da Base) e o MCP (Movimento de Cultura Popular). Foi deste último que surgiu o PNA e a bela e potente figura de seu criador: o educador Paulo Freire.
EDUCAÇÃO FÍSICA ESCOLAR E ESTUDANTES COM DEFICIÊNCIA MÚLTIPLA SENSORIAL VISUAL EM TEMPOS DE COVID-19
Authors: Dos Santos Moreira Flavia Daniela , Fernando Paiva de Carvalho Junior Arlindo
Published: February 2022

A Deficiência Múltipla Sensorial Visual é uma condição heterogênea que serve para designar pessoas cegas ou com baixa visão associada a outras deficiências. No presente artigo analisamos os desafios e possibilidades vivenciados por esses estudantes no contexto da pandemia de Covid-19. Essa análise ocorreu a partir de nossas experiências enquanto professores e apoiados na concepção metodológica de cunho qualitativo, seguindo a estratégia das narrativas. Propomos atividades para serem desenvolvidas por esses estudantes e suas famílias em casa, orientadas pelo professor de Educação Física. Concluímos que essas atividades, desenvolvidas em parceria com familiares, podem contribuir satisfatoriamente com o desenvolvimento integral desses estudantes.
Fenomenotecnia y sistemas experimentales en la comprensión de la práctica científica: el caso de la célula viviente
Authors: Gallego-Gómez Juan Carlos , Guerrero-Pino Germán
Published: February 2022

El presente artículo tiene por objetivo precisar la concepción de los sistemas experimentales de Rheinberger dentro del contexto del concepto de fenomenotecnia de Bachelard, para después mostrar su utilidad en el análisis y comprensión de un caso particular, como es la emergencia del objeto epistémico, «célula viviente», en la biología celular contemporánea. En este último caso, se parte de sus orígenes con la teoría celular, la citología y la bioquímica, hasta llegar a sus más recientes desarrollos basados en imagenología de células vivas. En relación con la noción de sistema experimental, se plantea que estos incluyen objetos epistémicos o científicos y condiciones experimentales, así como coyunturas, hibridaciones y bifurcaciones. La concepción de sistema experimental de Rheinberger, es una caracterización más fina de la ciencia contemporánea que atrapa un elemento central de la actividad investigativa: el surgimiento del objeto científico-epistémico (célula viviente) cogenerado entre un espacio de representación y un grafema (un rastro experimental que deja significantes) dentro de un sistema experimental llamado imagenología de células vivas. Finalmente, en el contexto de los recientes trabajos en estudios sobre ciencia, tecnología y sociedad, también se busca mostrar cómo es posible integrar las reflexiones filosóficas con la práctica científica, como sucede realmente en el laboratorio, que está bastante ausente en los actuales trabajos sobre filosofía de la ciencia.
Long-term survival: Achilles heel of lung transplantation
Authors: Manickavel Suresh , Loebe Matthias
Published: February 2022

long-term survival after lung transplantation has increased over recent
years, but still fall short of providing extensive life expectancy for
more than 10 years.
Upregulation of Mechanosensitive Channel Piezo1 Involved in High Shear Stress-induced Pulmonary Hypertension
Authors: Chen Jiyuan , Miao Jinrui , Liao Jing , Zhou Dansha , Wang Ziyi , Lin Ziying , Chen Yuqin , Zhang Chenting , Luo Xiaoyun , Li Yi , Xing Yue , Zhao Manjia , Parmisano Sophia , Tang Haiyang , Yuan Jason X.-J. , Yang Kai , Sun Dejun , Wang Jian
Published: February 2022

Background and Purpose: Piezo1 is a crucial mechanical sensitive channel
involved in vascular remodeling. However, the role of Piezo1 in
different types of vascular cells during the development of pulmonary
hypertension (PH) induced by high flow is largely unknown. Experimental
Approach: Based on previously established protocols, we established a
rat PH model by left pulmonary artery ligation (LPAL) for 2 and 5 weeks
to mimic the high flow and hemodynamic stress. Key Results: Results
showed that right ventricular systolic pressure (RVSP) and right
ventricular wall thickness were significantly increased in the LPAL
groups compared with the SHAM group. Rats in LPAL-5w groups developed
remarkable pulmonary vascular remodeling, resulting in decreased
phenylephrine-induced contraction and acetylcholine-induced relaxation.
On the one hand, in pulmonary arterial smooth muscle cells (PASMCs),
upregulation of Piezo1 was observed in association with the elevation of
[Ca2+]cyt in the PASMCs from both LPAL-2w and LPAL-5w groups versus
respective SHAM groups. Notably, Piezo1 expression was directly
upregulated by YAP/TEAD4. On the other hand, significantly upregulated
Piezo1 expression was also presented in the lung tissues, mostly
composed of pulmonary endothelial cells (ECs), from rats of LPAL-2w and
-5ws groups, which can be transcriptionally regulated by RELA (p65) and
contributes to the lung inflammation. Conclusion and Implications: Our
results suggested the upregulation of Piezo1 in both PASMCs and ECs,
coordinate together and contribute to the pulmonary vascular remodeling
and dysfunction in LPAL-PH rats, providing novel insights into the cell
type-specific effects of Piezo1 in the pulmonary vasculature during high
flow-related PH.
Environmental Pollution, Its Health Implications and Diseases Associated with Waste and Their Mode of Transmission.
Authors:   1Deptt of Science Laboratory Techn, Delta State Polytechnic, Ogwashi-Uku, Nigeria. 2&4Industrial Safety and Environmental Techy Dept (ISET), Petroleum Training Institute (P.T.I.), Effurun, Nigeria. 3Petroleum and Natural Gas Processing Department (PNGP), Petroleum Training Institute (P.T.I.), Effurun, Nigeria., Ogodo A.D , Idehen Q.O. , Egere U.G. , Akpofure I.H.
Published: February 2022

Environmental pollution has become topical worldwide so much so that no day passes without the issue being discussed somewhere in the world especially the state of Human health in the Niger Delta Region of Nigeria. This research work shows that man is largely responsible for pollution of the air, the sea and the land and this pollution posed the greatest danger to the atmosphere. This research shows the criminal nature of pollution of the environment. The research x-rays some of the causes of Environmental degradation; its health implications and diseases associated with wastes and their mode of Transmission. The research emphasizes on some waste management practical facts and regulations that need Constitutional Reforms, Historical Progression of Environmental Laws in Nigeria, Environmental Courts, Ineffective Enforcement of Environmental Laws, Health Impact Assessment Studies, Pollution and Its Health Implications, Prevention and Control/Management of Wastes. Finally, the research work concluded with some recommendations as we strive to live in a healthy environment to avoid all forms of environmental pollution and diseases. The research work concluded that Environmental Pollution is all about GLOOM, NO GLEE. Keywords: Environmental Pollution (ALL GLOOM, NO GLEE), Health Implications, Human Diseases and Mode of Transmission, Environmental Courts (Legal Enforcement of Environmental Laws), Health Impact Assessment Studies.
Guest editorial - applications of intelligent systems
Authors: Badica Amelia , Badica Costin , Kurbalija Vladimir , Bellatreche Ladjel , Ivanovic Mirjana
Published: February 2022

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Experimental investigation of the thermal performance of wet cooling tower with splash fills packing
Authors: Ahmed Shaymaa , Aljaberi Forat , Makki Hasan
Published: February 2022

With the increasing intensity of the ecological and environmental problems and the scarcity of fresh water, this paper was introduced to investigate the ability to use treated wastewater as a cooling media via studying its behavior throughout a cooling tower. The simultaneous transfer of heat and mass from the treated wastewater to air over splash-fill packing arranged in a zigzag manner was studied. The characteristic of the cooling tower, the outlet water temperature, and the rejected heat were investigated as the water-to-air ratio and inlet water temperature were varied. The core results show that the cooling tower of the tower decreases with increasing water-to-air ratio, and increases with the raise of inlet water temperature. Moreover, relationships between cooling tower and water-to-air ratio were obtained for each. It was also observed that the outlet water temperature increases gradually with increasing water-to-air ratio and temperature, and the difference between the inlet and outlet temperature becomes larger by increasing the inlet temperature. The heat rejected value increases with increasing the air-flow rate, water flow rate, and temperature. This study revealed that cooling tower of splash fills arranged in a zigzag manner was higher compared to other types of packing. In the same time, the results for the treated wastewater and fresh water were very close that gives approximate behavior, and this can save a huge amount of fresh water for other humanistic utilization, along with taking benefit from the treatment process of wastewater instead of through it into the aquatic systems.
Effects of ammonia addition on combustion characteristics in partially-premixed swirling ammonia/methane/air flame
Authors: Zhang Junqing , Sui Chunjie , Zhang Lianjie , Jiang Jieyu , Zhang Bin
Published: February 2022

Ammonia combustion has received intense research interest recently for its potential to reduce CO2 emission. This study aims to investigate the turbulent combustion characteristics in a bluff-body burner for CH4/NH3 mixtures with different ammonia blending ratios (15%, 30%, and 45% by mole fraction) through large eddy simulation and experiments. The simulations are conducted using openFOAM with a low Mach number solver and the partially stirred reactor combustion model with a detailed reaction mechanism. The flow field of one typical case is measured using the particle image velocimetry technique to verify the accuracy of the numerical results.The combustion characteristics are discussed. As the ammonia blending ratio increases, the flame height shortens, the flame color gradually changes from blue to orange, and the intermittent local quenching zone moves upstream, indicating that the combustion is becoming unstable. Meanwhile, the flow fields exhibit similar characteristics though the ammonia concentration varies greatly. The CO and NO emissions are also discussed. The CO emission decreases and the NO emission increases as the ammonia blending ratio increases
Research on thermal and central flame spread behaviors over insulation material EPS in different concave structure cases
Authors: Huang Xinjie , Gao Jinda , Zhou Zhijie , Hu Junjie , Wu Yuxin , Zhang Pengyuan
Published: February 2022

The effect of different depth-width ratios, ?, on the flame spread over molded polystyrene (EPS) at the central place ignition was studied. The variation laws of characteristic parameters such as flame structure, flame height, flame spread rate, flame temperature and mass loss rate were analyzed. The experimental results show that at the central flame spread, the extinction, re-ignition, and re-burning were found for the upward flame except at ? = 1.5, while the downward flame didnot have these phenomena. At ? = 1.5, the stability of upward flame spread was the best, as the extinction didnot occur, and the flame spread rate was the fastest. When ? <1.5, the extinction of upward flame could be sorted to flame instability, while when ? >1.5, the extinction could be attributed to the more hot smoke effect. If the average flame height of upward increased, the average flame height of downward decreased, and vice versa. Inner flame pressure model was built, which could better explain the characteristics of mutual inhibition between upward and downward flame heights.
A numerical study for solid and serrated annular finned tube bundles
Authors: Tacgun Ekrem , Aksoy Gokhan
Published: February 2022

Annular finned tube bundles are commonly used for heat recovery systems. Nowadays, heat recovery systems are important in the energy economy. Cross-flow heat exchangers, one of the heat exchanger types are suitable for waste heat recovery systems. Annular fins are utilized in cross-flow heat exchangers for a long time. In this study, two types of annular fin geometry, namely solid and serrated fins, were studied numerically in the cross-flow heat exchangers. All numerical analyses are performed in ANSYA-FLUENT program and the fin geometries are designed in 3-D geometry. Numerical results obtained for two different geometry fins are validated separately with the literature. It is seen that analysis results are found to be compatible with the literature. In numerical analyses, five different Reynolds Numbers and six different geometric parameters are studied. Effects of these parameters are investigated to determine the flow and thermal performance. According to analysis results, the thermal performance of the serrated annular fin geometry is about 8.2% higher than the solid fin geometry, while the flow performance decreases by 7.5%.
Revelation of the Involvement of Rv1651c of Mycobacterium tuberculosis H 37 Rv in Carbohydrate Metabolism
Authors: S Meena Laxman
Published: February 2022

Tuberculosis (TB) is the major cause of mortality across the world. About one-third of world population is affected by this fatal disease. Mycobacterium tuberculosis H 37 Rv ( M. tuberculosis ) which is a gram- positive bacterium is responsible for the cause of TB. M. tuberculosis is spreading its roots worldwide with the help of various survival mechanisms and making its cure more difficult. In the present study, we have made use of various in-silico tools to predict the properties of Rv1651c which is a member of the PE_PGRS protein family. This manuscript reveals some important aspects of Rv1651c as its function is still unknown. The major part of this study includes protein sequence retrieval, multiple sequence alignment, protein-protein interaction study, epitope prediction, localization, function prediction, structure prediction and its validation, ligand binding prediction and mutational analysis. This protein shows the presence of GTP-binding motifs such as DXXG and GXXXXGK. These motifs can be targeted to mutate the protein and thereby, decrease its stability. This protein also shows similarity with enzyme ribose-5-phosphate isomerase, which performs the function of interconversion of ribose-5-phosphate and ribulose-5-phosphate. This similarity proves to be of great importance as this protein has ribulose-5-phosphate as one of its predicted ligands. All these in-silico generated results of Rv1651c give a hint of it being involved in carbohydrate metabolism. Carbohydrate metabolism is an important process required for the production of energy molecules. Thus, this protein might be targeted to block the carbohydrate metabolism pathway. These prediction-based studies using computational approach might prove to be a successful step towards developing drugs against TB.