bluuebunny/crossref_metadata_2025 huggingface dataset:
Seismic Wave Excitation of Mature Oil Reservoirs for Green EOR Technology
Authors: Mohammed Bashir Abdullahi  , Shiferaw Regassa Jufar  , Iskandar Dzulkarnain  , Tareq Mohammed Al-shami  , Minh Duc Le
Published: March 2023

Elastic wave-based oil mobilization of residual oil in heterogeneous reservoirs is a viable, low-cost, and green technology method of enhanced oil recovery (EOR). Applications for elastic (seismic) waves at the reservoir scale are currently in the preliminary stages of investigation and development. We employ a two-layer numerical finite element method (FEM) in this research to investigate the possibility of effective propagation of seismic waves in the low permeability area of a mature oil reservoir when seismic stress load is delivered to the rock matrix via a downhole source. The purpose of this research is to evaluate the potential of fluid and rock matrix displacement amplitudes for crossflow generation in a mature oil reservoir. In a low permeability formation, the numerical results reveal that, as the observation radius approaches the reservoir boundary, the rock matrix time-domain displacement performs better as a wave propagation parameter than the pore fluid displacement. However, crossflow oscillations at a peak mesoscopic frequency of 3.0 Hz produce an instantaneous oil transfer rate (recovery rate) of 2.5% (bypassed oil) from the low permeability area. This method can be used in combination with water flooding to recover more oil from both high and low-permeability areas. Mesoscopic attenuation frequency can therefore be utilized as one of the indicators to assess oil recovery in heterogeneous oil reservoirs.
The Effects of Alternative Fuel Mixture of HDPE Plastic and Gasoline on Four-Stroke Engine Exhaust Gas Emissions
Authors: Rizqi Fitri Naryanto  , Kriswanto  , Fahmy Zuhda Bahtiar  , Mera Kartika Delimayanti  , Andri Setiyawan
Published: March 2023

Alternative fuels, like a mix of pyrolyzed plastic waste and gasoline, have made us less dependent on nonrenewable petroleum. Since HDPE has a low density, it is perfect for producing more oil at temperatures as low as 400oCelsius. It has a density of around 0.94 g/cm3, whereas gasoline is between 0.60 g/cm3 and 0.78 g/cm3. This study compared a blend of C10 and C20 gasoline at engine speeds of 1500, 2000, and 2500 rpm to C0 gasoline. Results indicated that as speed increased, exhaust gas emissions such as HC and CO levels in pure gasoline (C0) dropped, whereas levels in the combination increased. This demonstrates that a mixture of gasoline and HDPE damages the environment.
Impact of Variable Liquid Properties on Peristaltic Transport of Non-Newtonian Fluid Through a Complaint Non-Uniform Channel
Authors: Manjunatha Gudekote  , Rajashekhar Choudhari  , Prathiksha Sanil  , Hanumesh Vaidya  , Balachandra Hadimani  , Kerehalli Vinayaka Prasad  , Jyoti Shetty
Published: March 2023

The present investigation emphasises a new attempt at the peristaltic mechanism of Eyring Powell fluid through a non-uniform channel. The analysis is performed in the presence of wall properties under the influence of variable liquid properties, and the flow problem is mathematically developed. The channel walls are subjected to no-slip conditions with long-wavelength and low Reynolds-number approximations employed in the study. The nonlinear governing equations are normalised using relevant non-dimensional parameters, and the solutions are obtained with the help of a regular perturbation technique. The influence of pertinent physical parameters of interest, such as velocity, temperature, concentration and streamlines, are represented graphically. The investigation reveals that the material parameters and elastic parameters of the Eyring Powell fluid model strongly affect the velocity and temperature profiles and that the opposite behaviour has been observed in the material parameters.
Cloud-based systems of open science in educational institutions
Authors: SHYSHKINA M.P.
Published: March 2023

In the modern educational and research university environment there are new models of organization of investigations, as well as educational and scientific activities, based on innovative technological solutions and pedagogical approaches to open science. Issues of setting up cloud-based open science tools and services for users, forming open science systems within the educational and scientific environment of the educational institution in order to maximize the pedagogical potential of their use, improving learning and research outcomes, and improving the organization of research and educational activities are the subject of the article. Conceptual aspects of formation and development of high-tech learning and research environment of educational institution with the use of cloud-oriented systems of open science, as well as organization of access to electronic resources and services to support investigative activities based on cloud computing and research infrastructures are outlined.
Professional and business culture of future professionals of nonhumanitarian profile as a new pedagogical phenomenon
Authors: SILCHUK O.V.
Published: March 2023

The paper deals with the necessity of determining the conceptual and categorical apparatus study of professional and business culture of prospective non-humanities specialists as a pedagogical phenomenon. A group of professions, representatives of which are included in the professional community of non-humanities specialists, has been determined. The conceptual analysis of the basic categories of «professional culture» and «business culture» in the study of professional and business culture of prospective non-humanities specialists has been conducted. The essence of the concept of «professional and business culture of prospective non-humanities specialists» has been defined.
To the question of transformation of education in a post-industrial society
Authors: PROTSENKO E.B.
Published: March 2023

Questions of innovative politics at higher school are extremely actual today, because without perfection of education there is no scientific and social progress. Currently, the transition from the University of the classical type to the University of the Third Generation is in progress, directly associated with a production.The separate aspects of this process are examined in this article.
Psychological health and education: experience pandemic
Authors: PROSANDYEVA L.E.
Published: March 2023

In the review article, the author substantiates the relevance of the problem under study. The significance and features of transformational transformations taking place in the field of higher education in connection with the COVID-19 pandemic have been revealed. The educational and non-educational problems faced by participants in the educational process are analyzed. Particular attention is paid to the study of psychological health and psycholoic well-being of students and teachers.It is concluded that the effectiveness of solving the problems of overcoming the psychological consequences of the pandemic causes the need to develop a system model that would integrate experts from different industries.
Fatores limitadores da efetividade da Lei de Cotas Raciais em concursos públicos para o Magistério Superior Federal
Authors: Palma Vanessa
Published: March 2023

Problematiza a questão referenciando-se na pesquisa que embasou sua tese de doutorado. Explorando dados de 2.391 editais lançados por 63 universidades federais entre 2014 e 2017, a autora mostra que, das 11.744 vagas ofertadas por meio dos certames, apenas 374 (3,18%) foram reservadas para cotistas negros(as), quantidade muito distante dos 20% estabelecidos pela Lei no 12.990/2014. Para a autora, práticas como omissão nos editais quanto aos critérios adotados para aplicação da reserva de vagas e fracionamento dos editais e/ou das vagas em diversos certames, conquanto não sejam irregulares, constituem limitações não só à aplicação da política de reserva de vagas, mas também à garantia do princípio da igualdade.
Trajetória institucional da implementação da Lei no 12.990/2014 em concurso para docentes : o caso da Universidade Federal do Sul da Bahia (UFSB)
Authors: Santos Maria do Carmo Rebouças dos , Souza Lidyane Maria Ferreira de
Published: March 2023

Debruçam sobre um caso que, embora muito particular, é uma experiência bem-sucedida de implementação da ação afirmativa no contexto da autonomia universitária, permitindo refletir sobre os fatores que contribuíram para esse resultado. Abordam a curta trajetória da universidade na matéria a partir do aperfeiçoamento de sua atuação a cada concurso, conferindo destaque, entre os fatores que teriam incidido sobre esse “aprendizado institucional”, às ações judiciais que questionaram em diferentes sentidos o modo de aplicação da lei.
Ações afirmativas em concursos para docentes de universidades públicas e a adoção de comissões de heteroidentificação
Authors: Venturini Anna Carolina
Published: March 2023

Busca expandir o foco comparativo das análises, incluindo a experiência de instituições estaduais entre as universidades públicas que estabeleceram cotas para negros(as) em concursos para seleção de docentes. Sob esse enfoque, a autora apresenta um balanço do panorama geral, identificando outros critérios observados para a ação afirmativa, além da reserva de vagas, como a pontuação diferenciada para cotistas negros(as), e informando que 83,3% das universidades que adotam as ações afirmativas para pessoas negras estabelecem a verificação da declaração racial por meio das comissões de heteroidentificação, o que envolve vários e importantes desafios, que vão da formação dos integrantes à garantia de legitimidade às decisões.
Tecendo a diversidade de raça e gênero : análise da implementação de ações afirmativas para negros e negras voltadas para um ministério público do trabalho mais colorido e plural
Authors: Santos Cecília Amália Cunha , Anabuki Luísa Nunes de Castro
Published: March 2023

Apresentam o projeto implementado desde 2019 por um coletivo de procuradoras do MPT, de modo voluntário e sem vinculação institucional, com o objetivo de aumentar a representatividade de mulheres negras na instituição. O relato das autoras – que nos conta da aprovação final no último concurso de duas candidatas participantes do programa – permite perceber que o formato do programa, seus componentes e sua ação continuada ao longo do processo seletivo são aspectos fundamentais para lidar com as múltiplas dimensões de raça, gênero e classe que atravessam a existência das mulheres negras e as excluem de concursos com concorrência muito acirrada, como o do MPT.
O Sistema de cotas para negros nos concursos à magistratura : os resultados na Justiça Federal entre 2016 e 2019
Authors: Dantas Magali Zilca de Oliveira
Published: March 2023

Analisa a implementação da ação afirmativa para acesso de negros(as) à magistratura federal desde a adoção das cotas raciais, conforme a Resolução no 203/2015 do Conselho Nacional de Justiça (CNJ). A pesquisa conduzida pela autora identificou que, nos quatro concursos realizados no período sob enfoque, não houve aprovação por meio das vagas reservadas para pessoas negras. Uma das razões apontadas para esse cenário é que a reserva de vagas foi aplicada somente na primeira fase do concurso, sem efeito nas fases seguintes; com isso, os(as) candidatos(as) foram avaliados(as) pelo critério de nota mínima, o que teria esvaziado a distinção entre os(as) candidatos(as) da ampla concorrência e os(as) da reserva de vagas.
Metodologias e atores de formulação do Plano Plurianual Municipal : um estudo de caso do município de Canoas, Rio Grande do Sul
Authors: Papi Luciana Pazini , Padilha Pablo Ziolkowski , Horstmann Guilherme
Published: March 2023

Sobre participação e intersetorialidade na elaboração do PPA municipal de Canoas, no Rio Grande do Sul. Os autores recuperam a tradição participativa no planejamento do município, mas indicam que no último ciclo a participação dos atores setoriais e sociais no processo de elaboração do plano teve um viés apenas consultivo, tanto por parte da população quanto das burocracias, referendando o programa de governo eleito. O texto reforça, portanto, a necessidade de fortalecimento da cultura de planejamento para a consolidação de práticas participativas ao longo de todo o ciclo do PPA.
Ousadia e transformação : proposta para remontar o Sistema Federal de Planejamento
Authors: Cardoso Junior José Celso , Couto Leandro Freitas , Garcia Ronaldo Coutinho
Published: March 2023

Dialogando com os temas levantados nos artigos apresentados neste Bapi, fechando a publicação temos uma nota propositiva para a estruturação de um sistema de planejamento e coordenação. Embora escrita ao calor do processo de transição governamental vivenciado no Brasil entre os meses de novembro e dezembro de 2022, a nota propõe um redesenho da estrutura organizacional do setor, na alçada da Presidência da República, que efetive várias funções remetidas ao núcleo de governo, agregando a direcionalidade e o dinamismo essencial às atividades de planejamento. Para tanto, são consideradas essenciais a centralidade política, a articulação e coordenação, a temporalidade e direcionalidade, a participação social, a dimensão territorial, a integração entre planejamento e orçamento e a necessidade de promoção de transformação das realidades vigentes, razão de ser, ao fim e ao cabo, da função de planejamento governamental. Hoje sabemos que essa proposta não foi integralmente incorporada ao redesenho ministerial inicial do terceiro mandato de Lula da Silva, mas igualmente sabemos que partes dela foram absorvidas na configuração do novo Ministério do Planejamento e Orçamento (MPO). Ademais, queremos crer que ao menos o espírito geral de nossa proposta para a criação de um ministério exclusivo a cuidar dos temas da gestão pública e da agenda mais ampla e transversalmente estruturante da transformação do Estado tenha também sido de alguma forma contemplada pelo novo Ministério da Gestão e Inovação em Serviços Públicos (MGI).
Plano Plurianual do Maranhão 2020-2023 e o efeito transbordamento no sistema de planejamento estadual
Authors: Matos Roberto Santos , Alves Maria Juliana de Souza , Martins Marco Aurélio de Sousa , Vidal Raphael Ferreira
Published: March 2023

Trazem o caso do PPA 2020-2023 do estado do Maranhão e seu efeito transbordamento no sistema de planejamento estadual. Na contramão da fragilização do instrumento no nível federal, o estado buscou trazer inovações que fortaleceram a cultura do planejamento no estado, com a valorização do uso de evidências, transparência e participação, e que transbordaram para as administrações municipais. O fortalecimento institucional do planejamento estadual fortaleceu seu papel para o diálogo com os municípios, com possíveis desdobramentos para a gestão pública municipal, o que acarretaria a melhoria da qualidade de vida dos cidadãos maranhenses. Essas práticas, vale dizer, ganharam reconhecimento de boas práticas relacionadas à Agenda 2030 de implementação dos objetivos de desenvolvimento sustentável (ODS).
Repercussão dos créditos adicionais no planejamento governamental : estudo no orçamento do estado do Mato Grosso do Sul
Authors: Borges Lazaro Maxwel , Reis Anna Karolina Monteiro , Arruda Alessandro Gustavo Souza , Thiago Fernando
Published: March 2023

Apresentam estudo de caso do estado do Mato Grosso do Sul, a respeito da repercussão dos créditos adicionais ao orçamento sobre o planejamento estadual. A despeito de os números gerais serem coerentes, escondem uma importante desigualdade setorial, em que classificações funcionais específicas tiveram imprecisões relevantes na orçamentação, o que pode denotar fragilidades no planejamento setorial.
Planejamento e orçamento participativo : do caso de Porto Alegre a apontamentos para um sistema nacional
Authors: Magalhães Álvaro
Published: March 2023

O objetivo do artigo é destacar alguns elementos propostos como necessários para a constituição de um sistema de âmbito nacional para a integração dos processos de planejamento e orçamento governamental, de maneira a melhor coordenar a formulação e a implementação de políticas públicas, bem como promover a participação cidadã. Os cinco aspectos destacados são: i) a necessidade do caráter estratégico de planejamento e orçamento; ii) a construção de metodologias propícias à participação cidadã e à pactuação de resultados; iii) a necessária coordenação horizontal de governo; iv) a integração com diretrizes de longo prazo, planos setoriais, projetos em múltiplas escalas; e v) os desafios colocados à coordenação vertical ou interfederativa. Na seção 2, será descrita como referência histórica a experiência dos anos 1990, conhecida como Orçamento Participativo (OP) de Porto Alegre, destacando os cinco aspectos considerados relevantes para a constituição de um sistema de planejamento e orçamento participativo que foram característicos (ou não) desta experiência histórica. Na terceira seção, os mesmos cinco aspectos são destacados, desta vez diante da evolução da implementação dos processos de planejamento governamental e gestão orçamentária no plano federal. Finalmente, à guisa de conclusão, são apontados elementos considerados relevantes para a constituição do referido sistema de caráter nacional e participativo.
Participação Social nos PPAs Estaduais : vai desistir ou vai continuar?
Authors: Avelino Daniel Pitangueira de
Published: March 2023

Faz uma análise partindo do nível federal para os governos estaduais, focada nas experiências de promoção de participação social nos PPAs de estados selecionados. Recuperando pesquisa anterior sobre o tema realizada pelo Ipea, o artigo analisa se nos estados da Bahia, do Rio Grande do Sul e do Ceará as mais destacadas estratégias de participação identificadas em 2014 persistiram até o PPA vigente para o período 2020-2023. Vale destacar a associação identificada pelo autor nos casos de maior sucesso e consolidação das experiências de participação social com o componente territorial na elaboração dos seus planos, participativos e regionalizados, casos de Bahia e Ceará.
De lateral a transversal : a trajetória das questões ambientais no âmbito da OCDE
Authors: Basso Larissa
Published: March 2023

O artigo explora a trajetória das questões ambientais na Organização para a Cooperação e o Desenvolvimento Econômico (OCDE). Demonstra, combinando evidências científicas e evolução dos debates na política internacional e na OCDE, como questões ambientais passam de uma posição subsidiária para compor a definição de desenvolvimento buscada pela OCDE no século XXI.
Da resistência à necessária aceitação : a vinculação de temas ambientais nas relações internacionais do Brasil e o papel da Rio-92
Authors: Zeca Bruna Gorgen , Silva André Luiz Reis da
Published: March 2023

O objetivo deste artigo é analisar a forma como a política externa brasileira se posicionou em relação ao tema do meio ambiente do início dos anos 1970 até a decisão por sediar a Rio-92 – ou a Conferência das Nações Unidas sobre o Meio Ambiente e o Desenvolvimento (CNUMAD). Foi utilizado um conjunto de fontes primárias e secundárias para averiguar os processos que influenciaram a posição do Brasil ao longo de, aproximadamente, vinte anos. As evidências da pesquisa empírica apontam uma posição de resistência em relação ao tema nos anos 1970, que se converteu em uma necessária aceitação em debatê-lo e torná-lo ativo na discussão a partir do início da década de 1990. Caracteriza-se a aceitação como necessária porque a vinculação do tema a outros assuntos importantes nas relações internacionais do Brasil crescia de maneira insustentável.
Augurer du genre
Authors: Zougbédé Émeline
Published: March 2023

À partir d’une enquête ethnographique menée entre mars 2020 et mars 2021 dans un service de l’aide sociale à l’enfance (Ase) d’un département français, l’article questionne les manières dont les dimensions de genre et d’identités sexuées structurent une partie du travail social auprès de jeunes migrants. Bien qu’il veille à prendre en considération le genre, le travail social conserve ses propres ambivalences vis-à-vis de la question du genre, héritées des conditions de travail de l’intervention sociale (manque de personnel, de budget, de places en foyers, etc.) et des situations d’urgence auxquelles font face les professionnels. L’enquête souligne que le recours à des stéréotypes de genre et de sexe ethnicisés et racialisés par les professionnels est un levier du travail social en ce qu’il permet de sectoriser la prise en charge des jeunes, et ainsi de la rendre plus rapide ou simple, dans un contexte de travail sous tension et contraint par la rareté de ses ressources. Malgré tout, les professionnels ont conscience des assignations d’identités de genre et de sexe ethnoracialisées dont les jeunes font l’objet et ont par ailleurs recours à ces stéréotypes dans leurs discours afin de les déconstruire. Ils visent ainsi à accompagner les jeunes dans une voie d’émancipation, d’autant que certaines de ces assignations renvoient à des sexualités adolescentes jugées déviantes.
Convergence and dynamical study of a new sixth order convergence iterative scheme for solving nonlinear systems
Authors: Capdevila Raudys R. , Cordero Alicia , Torregrosa Juan R.
Published: March 2023

A novel family of iterative schemes to estimate the solutions of nonlinear systems is presented. It is based on the Ermakov-Kalitkin procedure, which widens the set of converging initial estimations. This class is designed by means of a weight function technique, obtaining 6th-order convergence. The qualitative properties of the proposed class are analyzed by means of vectorial real dynamics. Using these tools, the most stable members of the family are selected, and also the chaotical elements are avoided. Some test vectorial functions are used in order to illustrate the performance and efficiency of the designed schemes.
Reproductive traits exhibited by the paedomorphic gobies exploited in the Majorcan transparent goby fishery (western Mediterranean) and their management implications
Authors: Riera-Batle Inma , Massutí-Pascual Enrique , Pastor Gracia Elena , Grau Jofre Antonio María , Grau Jofre Amalia
Published: March 2023

An important small-scale fishery in Majorca targets three similar goby species: Aphia minuta, Pseudaphia ferreri and Crystallogobius linearis. Histological examination of the gonads of these species sampled from landings during the fishing season revealed characteristic reproductive traits that could be defined as abbreviate iteroparity. The transparent goby (Aphia minuta) and Ferrer’s goby (Pseudaphia ferreri) showed batch abbreviate iteroparity as a reproductive strategy, whereas the crystal goby (Crystallogobius linearis) showed total abbreviate iteroparity. Despite their short lifespans, all of them have a spawning season whose duration is longer than the legal fishing season. Additionally, all of them maintain a standing stock of primary growth oocytes in their gonads, indicating more than one spawning season in their lifespan. These reproductive features partially offset their special sensitivity to potential overexploitation and environmental changes but also suggest that the fishery needs special management to avoid breaking the balance between sustainability and fishing effort. The results of size at maturity and potential annual fecundity in the three species of the fishery are also reported and discussed.
Du comté de Vannes au pagus de Porhoët
Authors: Leman Victorien
Published: March 2023

Le site fortifié du Corboulo (Saint-Aignan, Morbihan) a fait l’objet de sondages en 2020 puis d’une campagne de fouilles archéologiques programmées en 2021. Les données acquises sur le terrain permettent de préciser les modalités de construction du site et de son occupation ainsi que de poser plusieurs jalons de datation. La motte castrale du Corboulo apparaît ainsi fonctionner vers 900-1050 et pourrait s’inscrire dans les jeux d’influence sociopolitique existant entre les comtés de Rennes, de Vannes et de Porhoët. Des indices de datation laissent aussi supposer l’existence d’une fortification antérieure, datable de la fin du viiie ou du début du ixe siècle, qui serait à situer dans le contexte des guerres franco-bretonnes du début du règne de Louis le Pieux.
L’étude des granges cisterciennes en Bretagne du xiie au xviiie siècle, méthode et perspectives
Authors: Hamelin Fadila
Published: March 2023

Dans l’Europe médiévale et particulièrement aux xiie et xiiie siècles, la fondation d’abbayes cisterciennes s’est accompagnée de la mise en place de milliers de granges monastiques, l’ordre de Cîteaux privilégiant ce mode de mise en valeur et d’exploitation directe de la terre. L’ancien duché de Bretagne ne fait pas exception à la règle et les quinze établissements fondés au Moyen Âge ont progressivement déployé sur le territoire une intense activité agricole qui s’est prolongée par l’acquisition de manoirs et de maisons de ville. Pour autant, l’identification et l’étude des granges cisterciennes ont posé de nombreux problèmes en raison de l’état lacunaire des chartriers bretons et des rares vestiges in situ remontant au Moyen Âge. La préparation d’une thèse d’histoire a donc été l’occasion de mettre en place une méthodologie permettant de surmonter ces obstacles et d’affiner la connaissance et l’évolution des espaces grangiers à grande échelle et sur un temps long. L’espace cistercien offre alors des perspectives de recherche renouvelées.
Quand l’enseignement se fait divertissement : la danse, discipline au programme de collèges français (xviie-xviiie siècle)
Authors: Panzani Ludivine
Published: March 2023

Dès le xviie siècle, l’élite française considère la danse comme une condition sine qua non à la réussite sociale d’une personne de bonne éducation. La danse apparaît ainsi comme une partie intégrante de la formation aristocratique, en particulier au sein de nombreux collèges prestigieux français. L’étude de l’enseignement de la danse dans les collèges français permet d’interroger les acteurs et les pratiques pédagogiques mobilisés qui façonnent les corps et les esprits aux xviie et xviiie siècles.
« Djutha », nécropole de la période de la Horde d’Or dans le village caucasien de Djuhti, région de Stavropol
Authors: Dodé Zvezdana
Published: March 2023

La période des xiiie et xive siècles dans le Caucase du nord est marquée par la domination de l’empire mongol de la Horde d’Or. La région est un observatoire intéressant des mélanges ethniques actifs entre les populations nomades et les populations urbaines, en notant le rôle essentiel des nomades. Les Tatars de Mongolie ont apporté au Caucase du nord des éléments culturels d’Asie centrale, de Chine et du monde oriental iranien, comme des brocarts, des décors de ceinture et de coiffure, des armes, qui sont autant de témoins des traditions des populations soumises par les Mongols. D’autres sites de la période de la Horde d’Or, par exemple Madjari, Beloretchenski, Djulat etc., ont livré des mobiliers archéologiques qui ressemblent à ceux découverts dans des tombes de la région de la Volga ou dans les kourganes de Djuhta. Le matériel de cette nécropole donne un aperçu des traits principaux de la culture impériale de la Horde d’Or.
L’habitat de Naux à Colayrac-Saint-Cirq (Lot-et-Garonne) : une maison forte de bourgeois ?
Authors: Ballarin Catherine
Published: March 2023

Le présent article rend compte des résultats d’une opération d’archéologie préventive réalisée en 1999 sur le tracé de la RN 21 au lieu-dit de Naux sur la commune de Colayrac-Saint-Cirq en Agenais. Les vestiges mis au jour présentent toutes les caractéristiques architecturales d’une maison forte de la fin du xive siècle. Les études connexes du mobilier, de la faune, des archives et du paléoenvironnement convergent vers une hypothèse originale : la maison forte de Naux est une résidence bourgeoise à caractère « civil » et au mode de vie aristocratique.
Use of Nature Based Materials for Textile Wastewater Treatment - A Review
Authors: Giwa Saidat Olanipekun
Published: March 2023

Textile products remain one of the basic products the human being cannot do without. Textile manufacturing industry is an important source point of waste water as the production of textiles requires large amount of water and over 90% of the water is discharged as waste. Due to the fact that textile products are produced in varieties of colours and patterns, use of dyes and other chemicals are usually unavoidable. consequently, effluents from the manufacturing process contain a quite number of organic and inorganic chemical compounds that have been found to have hazardous impacts on the environment. Coagulation and adsorption processes are important parts conventional waste water treatment methods. The cost of acquiring chemical coagulants and activated adsorbent has triggered research towards low cost alternatives with eco-friendly properties. In this paper, the use of natural coagulants and adsorbents for treatment of textile wastewater is looked into to cover various types of the natural materials employed for the abatement of various pollutants from the industrial effluent. The principle of adsorption and coagulations, methods used in the preparation of the natural coagulants and adsorbents and their application to real textile wastewater-this covers the review of reported works in the recent decade and the latest trend in the treatment textile waste water in such a way that environmental protection and human health are prioritized as textile waste water is known for its toxic constituents. In addition, the survey reveals the research gap in the area of application of nature based materials to industrial textile waste water which may be of importance for intending researchers in natural coagulation and adsorption.
Removal of Congo Red from Wastewater Using ZnO/MgO Nanocomposites as Adsorbents: Equilibrium Isotherm Analyses, Kinetics and Thermodynamic Studies
Authors: Wang Shi Fa , Tang Sheng Nan , Gao Hua Jing , Yu Chuan , Yang Hua , Yu Xian Lun , Chen Xi Ping , Fang Lei Ming , Li Deng Feng
Published: March 2023

One step polyacrylamide gel method was used to synthesize the ZnO/MgO adsorbents and the adsorption behavior with Congo red (CR) from wastewater was extensively investigated. Various advanced techniques were applied to confirm the ZnO/MgO adsorbents consist of Zn, C, Mg and O elements and do not contain any other impurity elements. With the increase of MgO content, the morphology of ZnO/MgO adsorbent changes from the agglomeration of large particles to evenly dispersed fine particles and then to icicle structure. Results demonstrated that the adsorption process of ZnO/MgO adsorbents was significantly affected by the change in initial dye solution pH, initial adsorbent dosage, contact time and reaction temperature. The optimum pH, adsorbent dosage, contact time and reaction temperature is 9.81, 2 g /L, 65 min and 293 K, respectively. The maximum adsorption capacity of ZnO/MgO (nZnO:nMgO = 8:2) adsorbents (295.138 mg/g) for the adsorption of CR dye was approximately double that of previous reports (125 mg/g). The adsorption equilibrium data are well fitted by the Freundlich and Langmuir isotherm models. Thermodynamic studies indicate that the adsorption process of ZnO/MgO adsorbents is an exothermic process. Based on the experimental and theoretical analysis, the adsorption mechanism for the ZnO/MgO adsorbents consisted of hydrogen bonding, n-π interaction and electrostatic interaction. The present work pioneers the potential application of ZnO/MgO adsorbents for the adsorption of CR dye and further provides experimental evidence for the synthesis of other adsorbents.
JAYA Algorithm-Based Energy Management for a Grid-Connected Micro-Grid with PV-Wind-Microturbine-Storage Energy System
Authors: Gbadega Peter Anuoluwapo , Sun Yan Xia
Published: March 2023

In this study, the Jaya optimization algorithm is used to address the micro-grid energy management optimization problem using a hybrid PV-wind-microturbine-storage energy system. The main goals of this study are to reduce environmental pollution, increase microturbine operating efficiency, and minimize the cost of power generated. The overall objective of the proposed optimization method employed in the PV-WECS system is to run the PV-WECS systems at full capacity while running the microturbine when the PV-WECS systems are unable to produce all of the required power. The amount of emissions and costs of generated energy are reduced when BESS is used in the microgrid system. Furthermore, it is observed from the results that there is about 61.39% cost saving in the micro-grid operational costs and 38% carbon emissions reductions using the proposed optimization algorithm compared to the other metaheuristic algorithms used in this study. To demonstrate the appropriateness and supremacy of the proposed algorithm over the various optimization techniques for energy management of the proposed micro-grid systems, simulation results from the proposed algorithm are compared with those from other population-based metaheuristic algorithms, such as Particle Swarm Optimization (PSO), Differential Evolution (DE), Teaching Learning Based Optimization (TLBO), and Genetic Algorithms (GA). It is clear that the proposed algorithm outperforms and produces better results than the existing metaheuristic optimization techniques. More importantly, it illustrates the viability and efficacy of the proposed JAYA optimization approach in addressing the issue of energy management for large-scale power systems.
Magnetic Behavior of Ising Nanowire with Mixed Integer Spins: A Monte Carlo Study
Authors: Lafhal Amer , Jalal El Mostafa , Hasnaoui Abdellatif , Saadi Hasnae , Hachem Nabil , Madani Mohamed , El Bouziani Mohammed
Published: March 2023

The magnetic and thermal properties of a ferrimagnetic mixed spin-1 and spin-2 cubic Ising nanowire are studied by using the Monte Carlo simulation. The influences of the nearest (JAB) and next-nearest neighbor (JA and JB) exchange interactions and the single-ion anisotropies (DA and DB) on the critical and compensation temperatures are illustrated. Moreover, the phase diagrams on the (temperature, anisotropy) plane are plotted for several values of JA/|JAB|. The system shows very rich and interesting behaviors, namely first and second order phase transitions, tricritical points and compensation phenomenon. Finally, the dependence of hysteresis loops on the anisotropies, the exchange interactions and the temperature is also investigated.
Network Structure and Water Absorption of Soil Moisture Gel by Coarse-Grained Molecular Dynamics Simulations
Authors: Jiang Hai Ling
Published: March 2023

With the wide application of hydrogel materials in agriculture, forestry, flexible electronics, electronic information engineering, environmental detection, flexible electronics, information science, technology and so on, the development of various new functional hydrogel materials has gradually become one of the research hotspots. At present, the research on hydrogel materials is mainly focused on the preparation of various functional hydrogels by experimental methods, there is no fundamental understanding of the relationship between the “stimulus-response” and its inner microstructures. In this paper, the author uses the molecular dynamics simulation method to study the evolution of the hydrogel’s microscopic network structure, the relationship between microstructure and water absorption of hydrogels in the processes of water swelling and “stimulus-response”. The next generation of new super absorbent, high toughness, high strength and other functional hydrogels could be synthesized by the guide of this study, and these new hydrogels have a promising future to apply in new fields of technology such as flexible electronics, and biological medicine.
Diabetes and Cancer
Authors: Hong Jae Won
Published: March 2023

Diabetes mellitus and cancer are the most common life-threatening illnesses worldwide. Previous epidemiologic studies have suggested a strong association between increased risk of cancer and diabetes mellitus. Potential biological mechanisms underlying the relationship include obesity, hyperglycemia, hyperinsulinemia, chronic inflammation, and oxidative stress. The most common diabetes-related cancers are pancreatic cancer, hepatocellular cancer, breast cancer, endometrial cancer, and colorectal cancer. Special attention should be paid to diabetic patients using careful cancer screening and providing preventive anti-cancer strategies.
Diabetes and Sexual Dysfunction
Authors: Kim Jong-Dai
Published: March 2023

Type 2 diabetes can produce various sexual dysfunctions in both men and women. Prevalence of sexual dysfunction is 25~75% in type 2 diabetes, which is three times that of the general population. As hyperglycemia persists, atherosclerosis progresses, and macrovascular and microvascular complications can occur. Autonomic neuropathy and hypogonadism are principal causes of various sexual dysfunctions such as erectile dysfunction, retrograde ejaculation, and premature ejaculation in males and loss of libido, vaginal dryness, anorgasmia, and dyspareunia in females. Although erectile dysfunction is reversible in early stages, it is more difficult to control as diabetes and associated autonomic dysfunction and microvascular complications progress. Sexual dysfunction can decrease quality of life in type 2 diabetes patients and is a marker of vascular dysfunction. Sexual dysfunction has prognostic value for cardiovascular events in type 2 diabetes. This illustrates the importance of sexual function evaluation in type 2 diabetes patients.
Assessment of reproductive health service utilization in urban slums
Authors: Sharma Jyoti , Joshi Nitin Kumar , Jain Yogesh Kumar , Singh Kuldeep , Bhardwaj Pankaj
Published: March 2023

Objective:

To assess the utilization of reproductive health services in urban slum of Jodhpur city, India.

Methods:

A community based cross-sectional study was conducted in an urban slums of Jodhpur city amongst 300 married women of reproductive age between March and June 2021. Semi-structured questionnaire was used to gather demographic data and information about utilization of antenatal care (ANC) services, delivery and post-partum services.

Results:

The majority of females were aged less than 25 years (n=195; 65.0%), married after 18 years (n=240; 80%), living in extended families (n=265; 88.3%) and with monthly family income less than 10000 rupees (n=182; 60.7%). Statistically significant associations were found between ≥4 ANC visits and educational level of secondary and above (OR 2.47, 95% CI 1.03-6.28; P=0.04), older age (OR 15.70, 95% CI 14.87–16.54 for women aged 26–35 years, OR 16.14, 95% CI 12.12–20.01 for women aged ≥36 years; P<0.01), and backward and general castes (OR 15.91, 95% CI 13.57–17.85 for backward caste and OR 8.11, 95% CI 8.07–8.26 for general category of caste; P<0.01). Seven percent of females had undergone parturition. Older age was associated with higher risks of postpartum complications (OR 1.06, 95% CI 1.01–1.57 for women aged 26-35 years, OR 3.56, 95% CI 1.29–4.69 for women aged ≥36 years; P<0.01). In addition, risks of postpartum complications were associated with backward and general castes (OR 1.69, 95% CI 1.34–2.13 for backward classes and OR 5.01, 95% CI 4.29–5.31 for general category castes; P<0.01), and more than 4 ANC visits (OR 0.20, 95% CI 0.09-0.34; P<0.01).

Conclusions:

More frequent ANC visits are associated with a lower risk of postpartum complications. Furthermore, a high utilization of reproductive health services represents good implementation of reproductive and child health programme at the peripheral level resulting in a stark rise in maternal health indicators in the state of Rajasthan.
Influence of Gestational Age on Eruption of Primary Teeth in Indian Children - A Prospective Longitudinal Study
Authors: Mysore Indira Devraj , Nandlal Bhojraj , Narayanappa D
Published: March 2023

Context:

Eruption of primary teeth is the most anticipated event in a child's life. Genetics, gender, socio-economic status, gestational age are a few of the determinants of the primary teeth eruption. However, the effect of gestational age on the timing of primary teeth eruption among the Indian population has not been explored to date.

Aim:

The study was conducted to evaluate the influence of gestational age on time and sequence of eruption of primary teeth among children of Mysore.

Settings and Design:

A prospective longitudinal cohort study design was conducted at 'Baby Oral Health Promotion Clinic' at the Department of Paediatrics, JSS Hospital, Mysore.

Methods and Material:

150 newborn babies were recruited by simple random sampling and followed up from birth to 36 months. Teeth present during each visit were recorded. Data were statistically analysed and interpreted.

Statistical Analysis Used:

Descriptive statistics, t-test for an independent sample, and Pearson's Chi-squared test were applied.

Results:

The mandibular central incisor was the first tooth to erupt. Statistically insignificant early eruption in males was noted in both term and preterm children. When the chronological ages were compared, the preterm group showed a statistically significant delay in the eruption of all the teeth. However, when the age was adjusted for prematurity, only the central incisors and second molars showed a statistically significant delay.

Conclusions:

Gestational age has a strong significant association with the eruption of primary teeth and maybe one of the strong predictors for delayed eruption among children of Mysore.
Prevalence of ocular manifestations and related morbidity in severely malnourished children in a tertiary eye care center
Authors: Kashiv Yuri , Jain Pragya , Patel Chirag , Chanchlani Madhu , Singh Harpal
Published: March 2023

Background:

Ocular involvement is relatively common in malnourished children, and the consequences of malnutrition on the eye are frequently more severe during the formative years of life. This is a significant cause of avoidable blindness that has to be addressed with affordable methods. This study aims to determine the nature, extent, and seriousness of ocular manifestations in malnourished children and to evaluate the current prevalence given improving nutritional parameters through increased public awareness, education, and knowledge of vaccination and nutrition.

Materials and Methods:

This study was carried out in the department of ophthalmology of a tertiary eye care center for 1 year. Eye camps were held close by in urban shantytowns. We considered 518 kids between the ages of 6 months and 5 years who lived in those slums. The patient was subjected to a general, systemic, and ocular examination, including a vision and fundus examination.

Results:

A total of 100 children aged 6 months and 5 years (60 months) who were severely critically malnourished were enrolled and given an eye examination. In this study, 72% of very acutely malnourished children had ocular involvement. Conjunctival pallor was the most general observation in the anterior segment in 179 of the eyes (71.5% of the eyes). Retinal hemorrhage was the most pervasive posterior segment findings in 19 eyes (36.8%).

Conclusion:

This study is aimed to determine how frequently ocular symptoms occurred in malnourished children who visited tertiary eye care facilities. A vital target population that requires comprehensive screening to avoid vitamin A deficiency (VAD) and detect eye problems early is preschoolers. Every child should also receive an immunization and vitamin A prophylaxis. Low socioeconomic position, illiterate parents, and inadequate sanitation were determined to be the key risk factors for VAD.
Stress and strategies in coping stress among the medical students of a south Indian city
Authors: Delna S , Pradeep C , Nirmal Sujitha I J , Lakshmi Dorai B
Published: March 2023

Background:

Stress is a personal experience brought on by complex interactions between a person and their environment, so it cannot be avoided. It typically happens when a person’s situational demand exceeds their available resources. Additionally, it has been noted that excessive stress can hurt self-esteem, academic performance, and both personal and professional development. This study sought to determine the stress level, different stressors, and coping mechanisms used by undergraduate medical students.

Materials and Methods:

A cross-sectional study was done among first to final-year medical undergraduate students between January and June 2022 at a tertiary care institution in South India. 450 students enrolled in the first year to last year were included in the study through the purposeful sampling method. The medical Student Stressor Questionnaire was used to assess the stress levels among the study participants. The coping strategies were considered using a brief coping orientation to problems experienced (COPE) inventory. Cluster analysis used the K-means method.

Results:

A total of 278 out of the 450 students completed the questionnaire and returned it, yielding an overall response rate of61.78%. Of which 175 (62.95%) women respondents made up the majority of the study participants. The mean age of the participants was 20.15 ± 2.8 years. 45.32% (n = 126) of the study participants belonged to the first year of their study, whereas 23.02% (n = 64) belonged to the second year of their research. Academic stress was the primary stressor. The predominant coping strategies used were problem-focused and emotion-focused coping with stress.

Conclusion:

A variety of stress management techniques should be offered to help the students in better handling of the demanding professional course.
Coherence and vitals of medicinal herbs, nutrients, and yoga in stress management and psychological stasis
Authors: Srinivasan Saagarika , Mani Thenmozhi
Published: March 2023

When the time lows of the psychological body, about the human mind, there is a vital relationship between the psychological and somatic body leading to stress and mishaps. This could be a lack of coherence among significant components in the body, which are characterized by hormones such as cortisol and adrenaline that come into play. Cortisol and adrenaline are released when there is usually a response of fight or flight, where these hormones get ready to handle the body’s reaction, and when this happens properly, it yields stress. Stress occurs through all age groups across every ethnicity and population, as the functioning of the mind is very similar. Managing this emerging stress and anxiety condition could be done through the easy way of the modern system of medicine, allopathy. Alternatively, the traditional method comes in handy to maintain such a condition with hardly any long-term side effects. A few conventional techniques like the practice of yoga, support of the proper nutrients, and certain medicinal herbs are bent to see a change in the perspective of coping mechanisms that results in a stress-free environment within the human mind. Many patterns of practices are noticed that there are specific nutrients and supplements formulated with medicinal herbs with significant pharmacological properties and the ancient activity of yoga aid in stress management. Using and practicing regularly can help in an integrated caliber of living. This review article sheds information and collation on such significant medicinal herbs, nutrients, and renounced practices of yoga that play together in the balance of the human body to overcome the distress of the mind. Many studies have noticed that medicinal herbs, nutrients, and specific yogic asanas help handle stress and anxiety, giving a holistic living pattern.