bluuebunny/crossref_metadata_2025 huggingface dataset:
Studying the qualitative composition of substances obtained from poplar buds by extraction and barothermic methods
Authors: Mechshanova Anna , Polyakov Vladilen
Published: May 2023

Among the most acute problems of the Republic of Kazakhstan, it should be noted that the creation and development of a pharmaceutical base that meets all international standards, the development of the production of original domestic drugs, and the creation of safe and environmentally friendly technologies for their production. In this direction, plants of the genus Populus (poplar) of the Salicaceae (willow) family have an advantage due to large reserves of renewable raw materials (poplar plantations in the North Kazakhstan region have industrial reserves of medicinal raw materials) and the content of various classes of compounds with a wide range of biological activity.
The aim of this work was to study the qualitative composition of substances from the buds of balsam poplar Populus balsamifera obtained by extraction and barothermal methods.
Objectives: to obtain the substance from the balsam poplar buds Populus balsamifera by extraction and barothermal methods; establish the qualitative composition of the obtained substances; compare the composition of substances obtained by extraction and barothermal methods.
Materials and methods. Balsam poplar buds were collected in May 2021 near the village of Zarechny, North Kazakhstan region, Republic of Kazakhstan.
A method for obtaining a substance from balsam poplar buds includes using freshly harvested balsam poplar buds and extraction with solvents with an increasing polarity gradient. There were used solvents: hexane, dichloromethane, and ethyl acetate. The resulting extract was evaporated.
The results and conclusions: the results of the study showed the almost complete identity of the qualitative composition of the hexane extract of substances obtained by extraction and barothermal methods. In the case of ethyl acetate fractions, the difference is the presence of chalcones in the substance obtained by the barothermal method. Extraction with methylene chloride allows the separation of flavonoids, and subsequent extraction with ethyl acetate allows the separation of gibberellins
Investigation of the polyphenol composition of red oak (Quercus rubra L.) raw materials
Authors: Konovalova Olena , Omelkovets Tetiana , Hurtovenko Iryna , Sydora Natalia , Kalista Mariia , Shcherbakova Olha
Published: May 2023

The aim of the work was to determine the main groups of polyphenolic compounds in Quercus rubra L. raw materials.
Materials and methods. The leaves and annual shoots of Northern Red Oak used for research were collected in August in Lisnyky village of Obuhiv district of Kyiv Oblast (Ukraine). Determination of the component composition and quantitative content of flavonoids (including separately catechins), hydroxycinnamic acids, and phenolic acids were carried out in the samples of air-shade-dried crushed raw material to a particle size of 3 mm by the method of high-performance liquid chromatography (HPLC). Agilent Technologies 1200 liquid chromatograph was used for liquid chromatography.Results. Using the HPLC method, 18 polyphenolic compounds were identified in leaves and annual shoots of Northern Red Oak, in particular, flavonoids: rutin, quercetin-3-β-glucoside, luteolin, neohesperidin; catechins: catechin, epicatechin, epicatechin gallate, gallocatechin; hydroxycinnamic acids: chlorogenic, caffeic, trans-ferulic, trans-cinnamic, p-coumaric, hydroxyphenylacetic, benzoic, syringic, sinapic acids; phenolic acid is gallic acid. The dominant component among flavonoids is rutin (323.43 mg/100 g) (in the composition of catechins, epicatechin gallate (25.45 mg/100 g) prevails); among hydroxycinnamic acids in Northern Red Oak raw materials, chlorogenic acid (139.62 mg/100 g) and sinapic acid (74.64 mg/100 g) prevail.Conclusions. The obtained results point to the prospects of further phytochemical and pharmacological studies of Quercus rubra raw materials, with the aim of creating new plant substances based on it with antioxidant, anti-inflammatory, and antiviral activity
A.K. Bakhtin. Scientific legacy
Authors: Denega Iryna , Zabolotnyi Yaroslav
Published: May 2023

In the paper we give a brief overview of the O. Bakhtin' scientific results
σ-monogenic functions in commutative algebras
Authors: Shpakivskyi Vitalii
Published: May 2023

In finite-dimensional commutative associative algebra, the concept of σ-monogenic function is introduced. Necessary and sufficient conditions for σ-monogeneity have been established. In some low-dimensional algebras, with a special choice of σ, the representation of σ-monogenic functions is obtained using holomorphic functions of a complex variable. We proposed the application of σ-monogenic functions with values in two-dimensional biharmonic algebra to representation of solutions of two-dimensional biharmonic equation.
On weakly 1-convex sets in the plane
Authors: Осіпчук Тетяна , Ткачук Максим Володимирович
Published: May 2023

The present work considers the properties of generally convex sets in the plane known as weakly 1-convex. An open set is called weakly 1-convex if for any boundary point of the set there exists a straight line passing through this point and not intersecting the given set. A closed set is called weakly 1-convex if it is approximated from the outside by a family of open weakly 1-convex sets. A point of the complement of a set to the whole plane is called a 1-nonconvexity point of the set if any straight passing through the point intersects the set. It is proved that if an open, weakly 1-convex set has a non-empty set of 1-nonconvexity points, then the latter set is also open. It is also shown that the non-empty interior of a closed, weakly 1-convex set in the plane is weakly 1-convex.
Brief Review of Biological Effects of Electromagnetic Pollution(RF and 5G Waves) on Humans, Animals, and Vegetation
Authors: SEKER S. Selim , SIMSEK Ozlem
Published: May 2023

All devices using electrical energy emit electromagnetic fields and radiation as a side effect while performing their normal functions. This causes thermal and non-thermal harmful effects on humans, plants, animals, and devices. The effect on humans is not much different from the effects on plants or animals since they are dielectric material and 70-80% of them all consist of water. Other than that, some damages such as cancer appear after 20-30 years medically. Health studies conducted on animals reveal that radiofrequency (RF) waves, as well as the millimeter waves used in the 5G system cause changes in the body, manifested in structural alteration, disturbance in various functions of the organism, including the nervous, cardiovascular, immune, blood and other systems. While microwaves used in 4G cause thermal effects, millimetric waves used in 5G cause non-thermal effects only due to low wave penetration. Based on evidence obtained from various studies carried out by the USA National Toxicology Program, the Italian Ramazzini study, and the EU Reflex study, a growing number of scientists say that electromagnetic (EM) waves are “human carcinogens”. As is known that all processes in the human body involve electromagnetic waves. Brain activity, heartbeat, cell division, and neuronal communication always use electrical energy. The activities of hormones and enzymes are regulated electrically. Millimeter waveused in the 5G system have a weak penetrating ability and are easily absorbed by humans, animals, and trees. Therefore, 5G base stations need to be installed approximately every 10 meters. This will result in millions of new base stations in addition to the present ones and increase electromagnetic pollution and health risks by leased by a factor of 100. This study will discuss the biological effects of EM Pollution on humans, animals, and vegetation.
Survey and population dynamics of land snails at Sharkia Governorate, Egypt
Authors: Bayoumi S. M. , Omar N. A. , Mohanna A. H. , Ismail S. A. A. , Abed M. , El Sayed A. M. A. , El-Akhrasy F. I. , Issa M. A.
Published: May 2023

Abstract Land snails are a destructive agricultural pest in economic crops, but the populations for that pest are highly influenced by temperature and humidity, therefore climatic changes affected their behavior, distribution and population dynamics, for these reasons researchers should follow up on the changes in their behavior, distribution, and population dynamics. In this study, a survey study was conducted to define land snail species existing at Sharkia Governorate, Egypt, from January 2019 to March 2022 in horticultural, vegetable, and field crops and study the population dynamics for the dominant land snail species. Results showed that there are six species of land snails, these species were, Monacha cartusiana, Succinea putris, Eobania vermiculata, Theba pisana, Helicella vestalis, and Cochlicella acuta. The population dynamics of two prevalent land snail species (M. cartusiana and S. putris), were conducted during two successive growing seasons, the Egyptian clover harbored the highest number of M. cartusiana followed by wheat, while the onion was the lowest one during the study period. In the same trends, the land snail S. putris recorded the highest numbers during the growing season of the Egyptian clover crop. Finally, it is concluded that the land snail M. cartusiana considered the first grade of infestation existed everywhere at Sharkia Governorate, and the population density of the land snail is increase gradually after winter till reach the maximum density in spring.
Puerperal women’s knowledge on newborn’s body hygiene
Authors: Silva Maria Paula Custódio , Fonseca Luciana Mara Monti , Ruiz Mariana Torreglosa , Araújo Gilberto Pereira de , Rocha Jesislei Bonolo do Amaral , Contim Divanice
Published: May 2023

Abstract Objectives: to identify puerperal women’s knowledge attending the housing unit at a teaching hospital about newborn body hygiene after receiving routine guidance from the nursing team. Methods: cross-sectional study, carried out with 207 puerperal women from a teaching hospital in the Minas Gerais State between December 2018 and May 2019. For data collection, an instrument was built and validated following three phases and descriptive statistics and linear correlation were used of Spearman’s, with a confidence level of 95% for knowledge analysis. Results: 207 puerperal women participated in the study, with a mean age of 27 ± 6.3 years. Inadequate knowledge was observed, mainly regarding the sequence of cleaning the face and scalp, adequate products and hygiene of the nose, ear and mouth. The domain “before the bath” presented the highest average percentage of correct questions (94.0%±10.1), including care with the environment, temperature and intimate hygiene. Conclusion: the identification of inadequate knowledge about the newborn’s body hygiene raises the need for constant and more effective guidelines, with the use of active methodologies starting in prenatal care.
Narrativas Mônadas acerca de Matemática de EstudantesProfessoras em um Curso de Pedagogia Parfor da Região Amazônica
Authors: Taveira Flavio Augusto Leite , Ciríaco Klinger Teodoro , Peralta Deise Aparecida
Published: May 2023

Resumo O artigo toma como ponto de discussão narrativas escritas, produzidas em um curso de Pedagogia do Parfor, da região amazônica, por um grupo de EstudantesProfessoras que descreveu sua visão acerca da Matemática durante uma atividade. O referencial teórico problematiza o campo da formação de professores(as) em uma caracterização do referido programa e ainda explora as atitudes em relação à Matemática evidenciada pela literatura especializada na temática, com base em constructos da Psicologia da Educação Matemática. A metodologia, de abordagem qualitativa, apoiou-se em uma Roda de Conversa sobre a Matemática, seu ensino e processos de avaliação da aprendizagem. Conhecer as formas de representação matemática constituiu importante via para compreensão do modo como as professoras, em formação, concebem esta área do conhecimento e que atitudes declaram ter quando o assunto é a Matemática, seus conteúdos e ensino. Como resultado, apresentamos indicadores para atuação com a formação de professores(as) no contexto do Parfor, especialmente na região amazônica, dentre os quais a valorização da produção de saberes matemáticos locais pode ser o caminho para problematização matemática e para perceber a leitura de mundo pela lente daquele que ensina(ensinará) Matemática nos Anos Iniciais Educação Básica: o(a) pedagogo(a).
Traduzir para o registo tabelar informação estatística dada em outros registos: um estudo com futuros professores dos primeiros anos escolares
Authors: Fernandes José António , Barros Paula Maria
Published: May 2023

Resumo Neste artigo, trata-se a problemática da tradução para o registo tabelar de informação estatística dada em outros registos, a partir dos dois objetivos seguintes: 1) estudar o desempenho de futuros professores na tradução para o registo tabelar da informação dada nos outros registos; e 2) comparar o desempenho dos futuros professores nas diferentes traduções. Participaram no estudo 30 estudantes, futuros professores dos primeiros anos escolares, que se encontravam a frequentar o 1.º ou 2.º ano do curso de Licenciatura em Educação Básica, de uma Escola Superior de Educação situada no norte de Portugal. Os dados do presente estudo foram obtidos através das respostas dadas pelos estudantes a quatro questões, nas quais se requeria a tradução para o registo tabelar de informação estatística dada no registo gráfico, numérico-verbal e lista de dados simples. Em termos de resultados, salienta-se que os estudantes tiveram maior sucesso na construção da tabela de frequências simples do que na construção das duas tabelas de dupla entrada e da tabela de dados agrupados em intervalos de classe, tendo sido esta última a que se revelou mais difícil. Estes resultados, relativos à tradução de diferentes registos para o registo tabelar, são a principal contribuição do estudo e implicam que os futuros professores devem aprofundar as suas competências de representação tabelar.
Conexões Matemáticas no Ensino de Progressões Aritméticas de Ordem Superior
Authors: Bortoli Marcelo de Freitas , Bisognin Vanilde
Published: May 2023

Resumo O presente artigo apresenta resultados parciais de uma pesquisa realizada a partir de uma Unidade de Ensino Potencialmente Significativa de progressões aritméticas de ordem superior, com alunos concluintes de um curso de Licenciatura em Matemática. Por meio das conexões matemáticas, especialmente aquelas inerentes à própria Matemática, objetiva-se investigar as conexões estabelecidas pelos estudantes entre padrões, regularidades e sequências numéricas como ferramenta para a aquisição do conhecimento de forma significativa. Trata-se de uma pesquisa qualitativa, com uma abordagem de análise de conteúdo, cujos dados foram obtidos por aulas realizadas de forma remota, em momentos síncronos. Os resultados apresentados mostram que houve, por parte dos estudantes, reflexões sobre o conhecimento prévio de cada um, bem como revelação do entendimento da interconexão matemática como princípio norteador da prática docente.
As motivações que despertaram a vontade para a aprendizagem da Matemática dos alunos medalhistas da OBMEP de Cocal dos Alves-PI
Authors: Ibiapina Wilter Freitas , Monteiro Carlos Eduardo Ferreira
Published: May 2023

Resumo O ensino e a aprendizagem de Matemática apresentam muitos desafios, sobretudo para alunos e professores que vivenciam contextos socioculturais desfavoráveis. A Olimpíada Brasileira de Matemática das Escolas Públicas (OBMEP) tem premiado estudantes de Matemática que se destacam por seus resultados. Todavia, perspectivas teóricas como a de Vygotsky argumentam que aprender Matemática é um processo complexo que não se limita às respostas aos estímulos do contexto social ou de ações específicas como a OBMEP. Este artigo apresenta aspectos de uma pesquisa de doutorado concluída que analisou os foregrounds dos alunos medalhistas do município de Cocal dos Alves-PI a fim de identificar o(s) motivo(s) que os impulsionou(aram) a querer aprender Matemática. A pesquisa foi do tipo exploratória e qualitativa com ênfase na análise do caso dos alunos no referido município do Piauí. Uma vez que a produção dos dados aconteceu no contexto da pandemia de COVID-19, os 18 alunos participantes foram entrevistados por meio do aplicativo WhatsApp, tendo sido utilizado um roteiro semiestruturado. Para interpretar os dados produzidos, recorreu-se à análise de conteúdo, mais especificamente a análise temática. As reflexões indicaram que alguns elementos importantes são as adversidades, obstáculos sociais e econômicos que parecem ser enfrentados pelos participantes. Além disso, esses elementos parecem influenciar os motivos que despertam a vontade deles em aprender Matemática, pois eles vislumbram, por meio dessa aprendizagem, melhorar as condições sociais e econômicas pessoais e de suas famílias.
INFLUENCE OF BURNING RATE INHIBITORS ON THE THERMAL BEHAVIOR AND DECOMPOSITION KINETICS OF AMMONIUM PERCHLORATE
Authors: Zhai Huajun , Chen Haiying , Cai Zhenyu , Zhang Zhe , Zheng Wenfang
Published: May 2023

The addition of burning rate inhibitors (BRIs) to propellant formulations can be effective in reducing the burning rate of composite solid propellants (CSPs). Ammonium perchlorate (AP) is commonly used as an oxidizer for CSPs and is a major component of propellants. Therefore, it is of great significance to study the thermolysis performance of AP in the presence of BRIs. In this work, differential scanning
calorimetry and thermogravimetric analysis were utilized to study the thermolysis of AP. Oxamide (OXA), ammonium sulfate (AS), ammonium oxalate (AO), and carbamide (CA) were selected as the BRIs. The results showed that as the BRI content increased, the endothermic peak remained essentially
unchanged. The exothermic peak in the low-temperature decomposition (LTD) stage shifted to a hightemperature
field, while the exothermic peak in the high-temperature decomposition (HTD) stage shifted to a low-temperature field. Furthermore, associated kinetic studies showed that the decomposition activation energies of AP with inhibitors during the LTD stage were higher than that of pure AP, proving that the selected BRIs could effectively inhibit the thermolysis of AP. However, during the HTD stage,
the values of the activation energies for decomposition gradually increased in the order of AP + AO, AP
+ OXA, AP + CA, AP, and AP + AS, indicating that only AS had the effect of inhibition at this time.
Cryogenic cooling using liquid nitrogen to produce massive concrete: temperature, setting time and compressive strength
Authors: Alamayreh Malik I. , Alhorani Rana A. M. , Bazlamit Subhi M.
Published: May 2023

Mixing cement with water in mass concrete production is associated with hydration heat generation, which may cause concrete mixes to dry out and crack. The experimental work aims to evaluate the effects of using liquid nitrogen (LN) in cooling mortar mixes and concrete. LN was used in doses of 0, 25, 50, 75 and 100% by water volume to either cool the mixing water at T = 4°C or to inject it into concrete mixtures directly. The concrete mix proportions were based on ACI PRC-207.1-21 for mass concrete. The mortars' initial and final setting times and temperatures indicated that a greater percentage of LN delayed the hardening process and the peak hardening rates, exhibiting slower cement hydration. LN cooling enhances the compressive strength of mortar and concrete cubes when VLN/Vwater≤1. However, concrete compressive strength decreased due to ice formation that turned into voids when VLN/Vwater>1. Cooling concrete with chilled water (T = 4°C) showed a 30% and 34.51% increase in mortar and concrete cubes' compressive strength, respectively, and a maximum of 16.45% and 12.97% when LN was injected into mortars and concrete mixes. Cooling the concrete with chilled water (T = 4°C) showed a slower cooling process, which improved cement hydration results.
Ghosts of Buildings Past: Adaptive Reuse in Ancient Rome
Authors: Davies Penelope J E
Published: May 2023

Practiced to differing degrees, adaptive reuse (conversion of an un(der)used building into one thatserves a new purpose) ranges from repurposing materials to transforming entire buildings. Architectsinvolved in such adaptations have to address a building’s essential quality or characteristic features,and may suppress them, acknowledge them, or even emphasize them by retaining traces of pastlife, and through these ‘ghosts’ host buildings become palimpsests. The adaptive reuse of Romanbuildings after antiquity is copiously documented. Still unexplored is the practice of adaptive reuse ofRoman public buildings during Roman times, the subject of this paper. After assessing challenges indiscerning adaptive reuse, I explore factors that militate for and against the practice, before focusingon two specific instances: the Navalia or shipsheds, which were transformed into a warehouse, andthe Saepta or voting enclosure, which became an entertainment venue and then a high-end market.I argue that adaptive reuse could offer advantages over new construction, rooted precisely in thepalimpsests that resulted.
If you love me when I'm breathing; you don't love me when I'm dead?
Authors: Minkley Emma
Published: May 2023

This article looks to the form of the puppet, both an oral and aural entity, as a receptacle or instrument which allows for a ventriloquism to take place in partnership with the puppeteer. In the work of South African Handspring Puppet Company, the puppet is a receptacle for sound, but also for the human body itself - a chamber within a chamber - highlighting the instrumentalisation of the body. In this regard, the article looks to Handspring's I Love You When You're Breathing, particularly in reference to a comment once made by an audience member at a performance of the show that I watched in relation to the title; 'If you love me when I'm breathing; you don't love me when I'm dead?' In the practice of puppetry there is a focus on the ways the puppeteer conveys life in the puppet. Here, breath is significant as a sound, but more so as a movement, passed from puppeteer to puppet, a kind of bellows or organ. The 'life' of the puppet is discerned through the rhythmic breathing motions of the puppeteer. Here the aural is conveyed through movement, rather than through sound itself, which is further a reminder that sound is at its core a movement anyway, a vibration. What can be opened up if we are to think the oral/aural through the puppet in its relation to movement and stillness, life and death?
Build your own calculus v1
Authors: Peare Bartholdy Bjørn
Published: May 2023

This collection contains protocols for growing a calcifying oral biofilm model. Protocols include artificial saliva, a mineralising solution (CPMU), an alpha-amylase activity assay, and a biofilm growth protocol with starch treatments. The purpose of these protocols is to explore fundamental aspects of using dental calculus to infer dietary patterns in past populations. The main protocol contains starch treatments to look at the incorporation and extraction of starch granules from dental calculus, but can also be used to look at other dietary components, such as various proteins, other plant extracts, and whatever else may have been consumed in the past. Protocols are modified protocols from Sissons et al. (1991) and Extercate et al. (2010)
Closed Head Weight Drop model in mice - Whalen Lab v1
Authors: Whalen Ph. D. Michael
Published: May 2023

This is a protocol to describe the materials and methods utilized to perform preclinical traumatic brain injury (TBI) using a closed head injury model in mice. The posting of this protocol is part of the mission of the PREClinical Interagency reSearch resourcE-TBI (PRECISE-TBI, precise-tbi.org) to improve clinical translation of therapeutics by providing an online catalog and standardized protocols to reduce the variability of model usage between laboratories.
DENV 2 Infection v1
Authors: Stiven Quiguanás Edwin
Published: May 2023

En este protocolo se describen las condiciones para el mantenimiento de las líneas celulares C6/36 HT y BHK-21, además del procedimiento de infección y plaqueo del DENV 2
Fluid Percussion Model in rats - Lyeth Lab v1
Authors: G. Lyeth Ph. D. Bruce
Published: May 2023

This is a protocol to describe the materials and methods utilized to perform preclinical traumatic brain injury (TBI) using the fluid percussion model in rats. The posting of this protocol is part of the mission of the PREClinical Interagency reSearch resourcE-TBI (PRECISE-TBI, precise-tbi.org) to improve clinical translation of therapeutics by providing an online catalog and standardized protocols to reduce the variability of model usage between laboratories.
La viajera: aproximaciones osteobiográficas a la historia de vida de una mujer que habitó la costa sur de la Laguna Mar Chiquita (noroeste de la región pampeana, Córdoba, Argentina)
Authors: Canova Romina , Salega Soledad , Valenzuela Luciano O. , Fabra Mariana
Published: May 2023

El objetivo del presente trabajo es (re)construir la historia de vida e identidad social de una mujer adulta que habitó el noroeste de la región pampeana durante el Holoceno tardío, hace 1911 años a. p., desde la perspectiva de la bioarqueología social. Mediante la integración de diversa información etnohistórica, etnográfica, arqueológica y bioantropológica (sexo, edad, estatura, lateralidad, patologías dentales y poscraneales, datos isotópicos y ADN mitocondrial), y a través de un enfoque osteobiográfico, se pretende recuperar el cuerpo biológico, social y político de este individuo, y relacionarlo con distintos procesos ocurridos en el área a inicios del Holoceno tardío.
Cambios entesiales y uso de miembros superiores en poblaciones prehispánicas del centro de Argentina (provincia de Córdoba)
Authors: Salega Soledad
Published: May 2023

El objetivo del presente trabajo es analizar la frecuencia de cambios entesiales en poblaciones prehispánicas de la provincia de Córdoba (Argentina) y evaluar su posible relación con los modos de vida. La muestra está compuesta por 54 individuos adultos de sitios arqueológicos del Holoceno tardío, para los cuales se registraron las entesis del miembro superior con el nuevo método Coimbra. Los resultados sugieren que tanto la actividad física como el sexo y la edad de los individuos explican las distintas prevalencias de los cambios entesiales, aunque las pruebas estadísticas no identificaron un patrón distintivo para cada variable analizada.
Cuerpos idealizados. Decoraciones y posturas en figurinas cerámicas prehispánicas provenientes del Cauca Medio, Colombia
Authors: Gómez Mejía Juliana , Cifuentes Yeimy
Published: May 2023

A la llegada de los españoles, diversas etnias poblaban el territorio correspondiente a lo que hoy conocemos como Cauca Medio; sin embargo, los estudios arqueológicos siguen siendo escasos y no contamos con suficientes reconstrucciones de su modo de vida durante los diferentes periodos de ocupación. No obstante, la riqueza material recuperada da cuenta de la complejidad sociocultural de los grupos que poblaron esta zona en tiempos prehispánicos. Teniendo en cuenta lo anterior, esta investigación busca aportar a los estudios sobre arqueología del cuerpo en Colombia, a partir de un acercamiento a las formas a través de las cuales las poblaciones de esta región representaron el cuerpo en figurinas humanas elaboradas en cerámica. Se identificaron patrones en las proporciones, posturas, decoraciones y modificaciones corporales de 87 figurinas depositadas en colecciones de museos regionales. A partir de un análisis de frecuencias de las variables seleccionadas, se propone que hubo una intencionalidad en representar al menos tres formas específicas (tabloides, recipientes-figura y estatuillas), con algunas posturas estereotipadas. Se destacó el tronco y se enfatizó en la cabeza, lo cual se reconoce en el detalle de rasgos faciales, así como en la presencia de ornamentación. Esta selectividad en la presentación de la arquitectura del cuerpo, sugiere la importancia de la cabeza en la exhibición de la identidad. Se concluye que el cuerpo ocupó un lugar esencial en la simbología de las poblaciones prehispánicas, y que las figurinas humanas fueron un medio de expresión y de representación, ya que en ellas quedaron plasmados elementos idealizados de la corporalidad, lo que las constituye como fuente de información valiosa para acercarnos a conocer algunas prácticas de intervención del cuerpo en el pasado.
anaconda como serpiente-canoa: mito y chamanismo en la Amazonía Oriental, Brasil
Authors: Guida Navarro Alexandre
Published: May 2023

Mitos sobre la creación del mundo por una anaconda son comunes entre los indios amazónicos. La historia que cuentan es sobre una anaconda que se movía a través de los meandros del gran río, poblando las aldeas en sus márgenes, dando origen al mito conocido como serpiente-canoa. Los estudios arqueológicos han identificado pinturas de serpientes en cerámica arqueológica de la Tradición Policroma de la Amazonía —TPA—, lo que concuerda con esta narrativa, siendo probablemente de naturaleza chamánica. Este artículo presenta evidencia que permite inferir que los pobladores de los palafitos de la Amazonía Oriental también compartieron este mito, el cual estaba representado básicamente en el soporte cerámico. De este modo, se propone una interpretación arqueológica a la luz de mitos amazónicos contemporáneos.
Dos quebradas, un poblado. La organización espacial de El Carmen 1, sierra del Cajón, provincia de Tucumán (Argentina)
Authors: Cantarelli Violeta
Published: May 2023

Se presentan las nuevas evidencias de ocupación en el poblado El Carmen 1, localizado sobre las quebradas El Carmen y El Carrizal en la ladera oriental de la sierra del Cajón, provincia de Tucumán (Argentina). Las primeras evidencias arqueológicas del poblado se conocieron en la quebrada El Carmen. Con el avance de las investigaciones se documentaron construcciones arquitectónicas en la quebrada El Carrizal. En este trabajo se aborda la dimensión espacial y arquitectónica del asentamiento y se estudia la cerámica de superficie del asentamiento El Carmen 1 a los fines de proponer un modelo de organización espacial
“Latino internacional, no güeros, no morenos”. Racismo colorista en la publicidad en México
Authors: Tipa Juris
Published: May 2023

Utilizando metodología cualitativa, entrevistas con diferentes agentes involucrados en el desarrollo y la realización de los proyectos publicitarios, en el presente artículo se analizan las expresiones del racismo colorista en la publicidad comercial y política en México. El énfasis en dicho análisis está puesto sobre la forma y las lógicas de cómo se eligen actores para los proyectos publicitarios en relación con sus rasgos físicos. Se concluye que dicho proceso de selección está basado en una explícita discriminación colorista como una de las expresiones del racismo que está vinculada sociohistóricamente con la construcción de la sociedad y la nación mexicana.
Okul Yöneticilerinin Covid-19 Salgın Döneminde Uygulanan Uzaktan Eğitime Yönelik Yaşantı ve Görüşleri
Authors: YEŞİL Aslı , BALCI KARABOĞA Ayşe
Published: May 2023

Bu çalışmada farklı okul kademelerinden okul yöneticilerinin Covid-19 pandemisi sürecinde uygulanan uzaktan eğitime ilişkin yaşantı ve görüşleri incelenmiştir. Araştırmanın çalışma grubunu 2021-2022 eğitim öğretim yılında Mersin ili Silifke ilçesinde ilkokul, ortaokul ve lise kademelerinde görev yapmakta olan 25 okul yöneticisi oluşturmaktadır. Çalışma grubunun belirlenmesinde maksimum çeşitlilik örneklem türü tercih edilmiştir. Veri toplama aracı olarak araştırmacılar tarafından hazırlanmış olan yarı yapılandırılmış görüşme formu kullanılmıştır. Görüşme formunda kısa bir giriş, katılımcıların demografik bilgilerini içeren ısınma soruları ve 7 temel konuya ilişkin sorular yer almaktadır. Elde edilen nitel veriler okul yöneticilerinin uzaktan eğitim sürecine ilişkin genel görüşleri, öğrencilerin uzaktan eğitim sürecine katılma durumları, teknoloji kullanımında personel yetkinliği, veli iletişim ve işbirliğine ilişkin yaşantılar, akademik başarıya ilişkin görüşler, internet güvenliği ve siber zorbalık ile gelecekte uzaktan eğitim uygulamalarından yararlanma kategorileri temel alınarak betimsel analiz tekniği ile analiz edilmiştir. Gelecek yıllarda da uzaktan eğitimin geleneksel eğitimin bir parçası olarak devam edeceği öngörülmektedir. Bu nedenle yapılan araştırma ile uzaktan eğitimlerin kalitesini arttırmaya yönelik çalışmaların planlanması açısından alana katkı sağlamak amaçlanmıştır. Araştırma sonucunda okul yöneticilerine göre salgın döneminin en iyi şekilde atlatıldığı ve uzaktan eğitimin, eğitim sisteminin bir parçası olarak devam edeceği sonucuna ulaşılmıştır. Ayrıca okul yöneticilerinin uzaktan eğitime ilişkin yaşadıkları pek çok sorun tespit edilmiş ve uzaktan eğitimin kalitesini arttırmaya yönelik önerileri belirlenmiştir.
Лев Шестов: что такое экзистенциальная философия?
Authors: Бабанов Алексей Вячеславович
Published: May 2023

Статья посвящена осмыслению концепции экзистенциальной философии Л. И. Шестова. Для этого анализируется творчество философа и сравнивается его понимание экзистенциального и рационального мышления. Анализ направлен в первую очередь на позднее творчество мыслителя, в особенности на идеи, высказанные в произведениях, опубликованных в сборнике «На весах Иова». Согласно Шестову, экзистенциальное мышление характеризуется: 1) тем, что выражает реальность личности и истины уникального жизненного опыта; 2) беспричинностью (спонтанностью) мыслей; 3) не дискурсивностью, а видением-откровением новой реальности (божественного); 4) логической (формальной) противоречивостью; 5) перспективой сверхчеловеческих возможностей; 6) самостоятельностью истин откровения и одновременно активной ролью «я» индивида в принятии / непринятии этих истин. Главное, что отличает экзистенциальную философию от отвлеченного мышления — это ее практическая ориентация на конверсию (перемену души), а не на идеи или концепции. Автор также рассматривает вопрос о том, что вписывается в сократическую традицию понимания философии.
Optimization of treatment of patients of older age groups with osteoporosis and fractures of the proximal femur
Authors: Kucheev Ivan O. , Kabanov Maksim Yu. , Linnik Stanislav A. , Sementsov Konstantin V. , Kashanskii Yurii B. , Polikarpov Anatolii V. , Romashov Pavel P. , Kondratev Igor P. , Tsololo Yaroslav B. , Radysh Vasilii G.
Published: May 2023

BACKGROUND: Osteoporosis is mainly found in elderly people, often leading to fractures of the proximal part of the femur, and can worsen the patients quality of life. The article describes approaches to the choice of tactics and techniques of medical assistance to patients of older age groups (elderly, senile age, and centenarians according to World Health Organization criteria) with fractures of the proximal femur (S72.0, S72.1, S72.2. according to International Classification of Diseases 10th Revision) and with concomitant osteoporosis.
AIM: To improve the treatment results of patients of older age groups with fractures of the proximal femur by modernizing and developing new methods for implant fixation.
MATERIALS AND METHODS: 322 patients with fractures of the proximal femur with the presence of II and III degree of osteoporosis, who were treated at the Hospital for War Veterans in Saint Petersburg from 2017 to 2020 were included for the analysis. All the patients were divided into two groups depending on the methods of the treatment used. The first group consisted of 145 patients treated with the proposed method. The patients of the 2nd group (177 people) were treated using the traditional method. To assess the immediate results, the anatomical and functional result and possible complications (false joint, delayed consolidation of fragments, shortening of the damaged lower limb, dislocation of the endoprosthesis, migration of metal structures, osteomyelitis) were studied. The results were evaluated according to Lekens functional index, and the quality of life was assessed according to the World Health Organization scale.
RESULTS: In 52.5% of the paients from the first group, good outcomes were obtained after 6 months according to the Lekens scale, while in group 2 such results were demonstrated only in 21.6% of the patients, and a year later, in 53.7% and 19.1%, respectively. In the first group, 13 patients (12.0%) had unsatisfactory outcomes after a year, 12 (13.5%) after 3 years, while in the second group 36 patients (31.3%) had unsatisfactory outcomes after a year, and 38 (35.8%) after 3 years.
CONCLUSIONS: As a result, the use of the proposed method for providing care to patients with fractures of the proximal femur ensures significant improve (p 0.01) of the treatment outcomes for this category of patients.
Ophthalmological follow-up of premature children in St. Petersburg
Authors: Saidasheva Elvira I. , Malinovskaya Natalya A.
Published: May 2023

Premature newborns have a high risk of developing visual impairments. This study presents the experience of an organization dispensary ophthalmological observation as a stage of providing medical care to premature children in St. Petersburg and the prospects for its development.
AIM: To analyze the effectiveness of the organizational model of dispensary ophthalmological observation of premature children in St. Petersburg for 20202022.
MATERIAL AND METHODS: Reporting forms of the activities of interdistrict ophthalmological cabinet and reporting forms of medical and social expertise of Rosstat No. 7D were used.
RESULTS: In 2010, a system of specialized ophthalmological care for premature infants at the hospital stage was organized in St. Petersburg (screening and laser treatment of active ROP using telemedicine technologies; surgical treatment of late disease stages). In 2018, for the subsequent dispensary observation of premature children aged up to 3 years, six inter-district ophthalmological cabinets of follow-up were organized. A developed routing scheme for children at risk and with active and cicatricial ROP in St. Petersburg and preliminary results of ROP incidence were presented.
CONCLUSION: The activities of specialized inter-district follow-up cabinets primarily ensure continuity between hospital and outpatient services in the dynamic monitoring of children at risk and children with active ROP. In addition, professional competencies allow ophthalmologists to avoid mistakes in diagnosing the stage, monitoring the ROP course, and promptly referring patients for emergency treatment (laser or anti-VEGF therapy).
Morphological structure of the levator muscle in congenital and acquired ptosis of the upper eyelid
Authors: Filatova Irina A. , Izmailova Natalia S. , Kondratieva Julia P. , Shemetov Sergey A. , Trefilova Marina S.
Published: May 2023

AIM: To examine the relationship between the morphological structure of the levator in congenital and acquired ptosis based on dynamometric data and histological research.
MATERIAL AND METHODS: Dynamometric and histological examination of the morphological structure of the levator in congenital and acquired ptosis of the upper eyelid was conducted. Twenty-seven fragments obtained during the operation to eliminate blepharoptosis were studied.
RESULTS: With congenital ptosis of the upper eyelid, the average values of SS and fatigue were 1.060.39 g and 1.880.89 g, respectively; with acquired ptosis, the average values of SS and fatigue were 1.470.66 g and 2.310.91 g, respectively (p 0.05). All the biopsies were divided into two groups. Group 1 included biopsies of 16 patients with congenital ptosis (n=16), and group 2 included 11 levator fragments with acquired ptosis. Macroscopic examination revealed greater levator fragment lengths in the acquired ptosis group than in the congenital ptosis group: 2.331.32 mm and 1.220.34 mm, respectively (p 0.05). The levator fragments differed in color and had denser elastic consistency in the acquired ptosis group than in the congenital ptosis group. The histological picture in congenital ptosis (n=11) was an overgrowth of the fibrousadipose tissue, and five biopsies showed an overgrowth of fibrous tissue with signs of protein dystrophy. In levator biopsies with acquired ptosis, seven biopsies with aponeurotic ptosis of the upper eyelid were characterized by the overgrowth of fibrousadipose tissue. The first biopsy (myasthenic ptosis of the upper eyelid) demonstrated the predominance of adipose tissue, with scattered bundles of striated muscle fibers and areas of connective tissue with bundles of smooth muscle fibers. In the remaining three biopsies, fragments of adipose tissue with signs of edema and hyperplasia were identified.
CONCLUSION: Congenital ptosis is characterized by relatively low strength and rapid fatigue of the upper eyelid levator, higher occurrence of fibrousadipose tissue, and fibrous tissue proliferation. Acquired ptosis is characterized by average strength and fatigue. In the acquired ptosis group, histological data indicate an equal ratio of fibrousadipose and adipose tissue growth. These results can be used in the diagnosis of various forms of ptosis and selection of an effective method for surgical correction for this pathology.
Afterslip on Conjugate Faults of the 2020 Mw 6.3 Nima Earthquake in the Central Tibetan Plateau: Evidence from InSAR Measurements
Authors: Hong Shunying , Liu Mian , Zhou Xin , Meng Guojie , Dong Yanfang
Published: May 2023

Afterslip could help to reveal seismogenic fault structure. The 2020 Mw 6.3 Nima earthquake happened in a pull-apart basin within the Qiangtang block, central Tibetan plateau. Previous studies have explained the coseismic and early (<6 mo) postseismic deformation by rupture and afterslip on a normal fault bounding the western side of the basin. Here, we resolved the 19-month Interferometric Synthetic Aperture Radar-measured sequences of postseismic displacements that revealed a second postseismic displacement center ~12 km to the east of the main fault. Fitting the postseismic displacement requires afterslip on both the main fault and an antithetic fault that probably forms a y-shaped pair of conjugate faults in a negative flower structure. Stress-driven afterslip models suggest that the required afterslip on the antithetic fault could be triggered by coseismic rupture of the main fault or by a simultaneous rupture on the antithetic fault. The afterslip on both faults occurred mainly up-dip to the coseismic slip and has released moment ~15%–19% of that by the coseismic rupture. These results provide insights into active extension in the central Tibetan plateau and highlight the complex nature of fault rupture and afterslip.
Kajian Fenotip Kambing Senduro sebagai Kekayaan Sumber Daya Genetik Ternak Lokal Indonesia
Authors: Amam Amam , Rifa'i Rifa'i , Surjowardojo Puguh , Susilorini Tri Eko
Published: May 2023

ABSTRACT. Galur kambing Senduro ditetapkan melalui Keputusan Menteri Pertanian Republik Indonesia Nomor 1055/Kpts/SR.120/10/2014. Kambing Senduro sebagai kekayaan sumber daya genetik ternak lokal Indonesia memiliki fenotip yang dapat diukur berdasarkan sifat kuantitatifnya. Penelitian pertama bertujuan untuk mengkaji fenotip kambing Senduro betina berdasarkan pada tinggi pundak, panjang badan, lingkar dada, bobot badan, dan panjang telinga. Penelitian kedua bertujuan menghubungkan sifat kuantitatif dengan umur ternak. Penelitian pertama menggunakan metode observasi, sedangkan penelitian kedua menggunakan metode korelasi. Data penelitian ditabulasi dan dianalisis secara deskriptif kuantitatif dan analisis korelasi dengan menggunakan Microsoft Excel 2010 dan SPSS 26.0. Pengamatan dilakukan pada 102 ekor kambing Senduro betina. Hasil penelitian menunjukkan bahwa kambing Senduro betina memiliki tinggi pundak 70-80 cm (55,88%), panjang badan 70-80 cm (53,92%), lingkar dada 80-90 cm (59,80%), bobot badan 50-60 kg (32,35%), dan panjang telinga 30-40 cm (69,61%). Panjang badan, lingkar dada, dan bobot badan memiliki korelasi positif yang sangat kuat dengan umur ternak. Penelitian ini merekomendasikan bahwa perlu adanya upaya pembaharuan data dan informasi terkait fenotip kambing Senduro yang berkaitan dengan sifat kuantitatif ternak yang mengacu pada Keputusan Menteri Pertanian Republik Indonesia Nomor 1055/Kpts/SR.120/10/2014.  (Phenotype study of Senduro goats as wealth of Indonesian local livestock genetic resources) ABSTRAK. The Senduro goat breed was determined through the Decree of the Minister of Agriculture of the Republic of Indonesia Number 1055/Kpts/SR.120/10/2014. The Senduro goat as a wealth of genetic resources for local Indonesian livestock has a phenotype that can be measured based on its quantitative characteristics. The first study aimed to examine the phenotype of female Senduro goats based on shoulder height, body length, chest circumference, body weight, and ear length. The second study aimed to evaluate quantitative characteristics with the age of Senduro goat. The first research uses the observation method, while the second research uses the correlation method. Observations were made on 102 female Senduro goats. The results showed that female Senduro goats had a shoulder height of 70-80 cm (55.88%), body length 70-80 cm (53.92%), chest circumference 80-90 cm (59.80%), body weight 50 -60 kg (32.35%), and ear length 30-40 cm (69.61%). Body length, chest circumference, and body weight have a very strong positive correlation with the age of Senduro goat. This study recommends that efforts to update data and information related to the phenotype of the Senduro goat related to the quantitative characteristics of Senduro goat are needed which refers to the Decree of the Minister of Agriculture of the Republic of Indonesia Number 1055/Kpts/SR.120/10/2014.