bluuebunny/crossref_metadata_2025 huggingface dataset:
DEVELOPMENT AND INTEGRATION PLAN OF MATO GROSSO DO SUL’S BORDER STRIP: A VIEW FROM THE ECONOMIC INDICATORS
Authors: Boldrine Abrita Mateus , Heloiza Conte Cláudia
Published: October 2023

The Development and Integration Plan of the Border Strip of the State of Mato Grosso do Sul - PDIF/MS (2012) was developed. This Plan presented seven strategic axes and the purpose of this paper is to specifically analyze the axis "economic development" to verify the monitoring of the results concerning the established goals. For this, data and socioeconomic and development indicators will be collected. The method will be based on the analysis of descriptive statistics as well as stylized facts. After analyzing the data and indicators, it was pointed out that important improvements occurred in the agricultural sector and storage. But on the other hand, few advances were observed in industrial diversification. Regarding tourism, trade, and services, there have been advances concerning the goals, however, it is important to emphasize that the goals established in the PDIF/MS are not specific, measurable, achievable, relevant, and temporal (SMART), consequently, performance evaluation is difficult. However, it is essential to develop a new Development and Integration Plan for the State of Mato Grosso do Sul’s Border Area that in fact will be able to provide SMART goals, for effective monitoring and of the Plan, and for its results to be robust and significant.
AVALIAÇÃO DA QUALIDADE AMBIENTAL DAS NASCENTES URBANAS DO CÓRREGO GAMELEIRA, CAMPO GRANDE-MS
Authors: Bazana Barbosa Edwaldo Henrique , Ribeiro Vinicius de Oliveira , Da Silva João Lucas Alves , Fernandes Shaline Séfara Lopes , Correa Nelison Ferreira , Corsino Amanda Bianchi , De Siqueira Danilo Henrique
Published: October 2023

As bacias hidrográficas urbanas deveriam ser áreas de conservação, pautadas no efetivo planejamento urbano e suas nascentes deveriam ser conduzidas à preservação ambiental, conforme previsão legislativa. As especificidades físicas e naturais, dessas áreas delimitadas pela topografia dão a possibilidade da identificação e espacialização da origem do fluxo hídrico de uma determinada região. Seguindo o intuito da criação de ações que subsidiem o planejamento territorial em uma bacia urbana, a análise inicia-se na identificação e espacialização da origem hídrica. Ao destinar áreas contendo vegetação arbórea densa e nativa, determina-se as Áreas de Preservação Permanente (APPs), conforme Brasil (2012). Este estudo tem como objetivos contribuir para a identificação de nascentes localizadas na Bacia Hidrográfica Urbana do Córrego Gameleira, no município de Campo Grande-MS, destacar importância da análise morfométrica, mapear o escoamento superficial em bacias de drenagem e identificar os processos ocupacionais. Os resultados possibilitaram classificar as nascentes codificadas em P01-GAM e P03-GAM com Nível de Atenção 3 e a nascente P02-GAM com Nível de Atenção 5. A classificação demonstra que o Nível de Atenção 3 alerta para a necessidade de ações corretivas afim de corrigir possíveis impactos em APPs e que o Nível de Atenção 5 encontram-se com as APPs preservadas, com as ressalvas para a devida manutenção dos sistemas ambientais.
EDUCAÇÃO AMBIENTAL, USO ESCOLAR DO SENSORIAMENTO REMOTO E GOOGLE EARTH: REFLEXÕES PARA ESTUDOS DO AMBIENTE
Authors: Novais Pires Koga Ana Paula , Bonifácio Cynthia Ellen
Published: October 2023

Este artigo objetiva refletir acerca  da Educação Ambiental e o uso de geotecnologias, como o Sensoriamento Remoto e o Google Earth, como mote e ferramentas para entendimento e estudos de problemas ambientais nas escolas, tendo como subsídio metodológico de natureza básica, objetivos exploratórios e descritivos, e abordagem qualitativa. O arcabouço teórico aborda autores que discutem a Educação Ambiental numa perspectiva crítica e o uso de geotecnologias como forma de análise e reconhecimento das mudanças na paisagem ao longo do tempo, e dos problemas ambientais que fazem parte do cotidiano das sociedades. O artigo também traz um exemplo do uso de chaves de interpretação visual da paisagem a partir de imagens de satélite ou mosaicos do Google Earth, que pode ser utilizado de forma interdisciplinar.

Palavras-chave: Ensino. Tecnologia. Problemas Ambientais. Práticas Pedagógicas.
CONTRIBUIÇÕES DE UMA EXPOSIÇÃO DIDÁTICA DE ZOOLOGIA PARA A EDUCAÇÃO AMBIENTAL COM ALUNOS DO ENSINO FUNDAMENTAL: UM RELATO DE EXPERIÊNCIA
Authors: Alves da Silva Gilcelany , Roque Francisca Aparecida Rodrigues Lima , Yuiti Mori Kelvin , Rodrigues Faria Rogério
Published: October 2023

O presente trabalho visa apresentar um relato de experiência cuja finalidade foi proporcionar uma atividade interativa com o uso de espécimes animais a alunos do ensino fundamental de uma Escola Pública Municipal, mediando conceitos científicos e saberes ambientais. O relato foi construído com base em observações da atividade desenvolvida, bem como da narração de professores participantes. A ação contou com a organização da coordenação e professores da própria escola e a participação de dois pesquisadores do setor de Zoologia da Universidade Federal de Mato Grosso do Sul. Os alunos puderam observar e tocar nos animais expostos, dos quais obtiveram informações referentes às suas características orfofisiológicas e socioambientais. Observou-se alunos curiosos e interativos para com a atividade, apesar de um pouco resistentes inicialmente por conta do medo ou do asco a alguns exemplares, o que se diluiu durante a exposição. Os dados apontaram que o desenvolvimento de atividades práticas de Zoologia, com a apresentação de animais vertebrados e invertebrados, da maneira como foi relatada, é capaz de despertar a curiosidade, a investigação e promover reflexões ambientais, pertinentes na sociedade atual.
DINÂMICA DO USO E COBERTURA DA TERRA ENTRE OS ANOS 1985 E 2021 NA BACIA HIDROGRÁFICA DO RIO PREGUIÇAS – MA, BRASIL
Authors: Gonçalves Santana Ricardo , Vale Barros França Danyella , Mouzinho Costa Avelar Cristiane
Published: October 2023

O conhecimento sobre as dinâmicas de uso e cobertura da terra ganham cada vez mais força diante da necessidade de sustentação das questões ambientais ligadas às relações sociedade/natureza, pois a cobertura da terra expressa as atividades humanas na superfície terrestre e está diretamente ligada ao uso e seu manejo. Desta forma, o presente artigo objetiva analisar a dinâmica do uso e cobertura da terra da bacia hidrográfica do rio Preguiças (MA) entre os anos de 1985, 2001 e 2021 afim de pontuar as principais alterações nas categorias de uso e cobertura, a inserção de novos usos e de que maneira os usos e coberturas estão influenciando em aspectos econômicos, ambientais e/ou sociais na área de estudo. Para alcançar o objetivo proposto realizou-se o levantamento de dados a respeito do uso e cobertura da terra do projeto MAPBIOMAS (2022), bem como análise espaço-temporal entre os anos de 1985, 2001 e 2021. Realizou-se trabalhos de campo para a validação dos dados. Observou-se que ocorreu a inserção de novos usos ao longo dos 36 anos e que a dinamicidade do uso e cobertura da terra na bacia do rio Preguiças está associada a áreas de pastagem, de mineração, silvicultura, lavouras temporárias e turismo. Atividades econômicas estão diretamente relacionadas ao uso e cobertura da terra na área em questão, sendo em cada curso se tem uma dinâmica diferente. A degradação ambiental também é um fator de destaque nesta análise, fazendo parte da dinamicidade do uso e cobertura da terra na área em questão.
MARKETING ESPORTIVO:
Authors: Volk Schatz Patrícia , Espíndola Carlos José
Published: October 2023

As pesquisas na área dos esportes têm crescido muito no Brasil e as investigações sobre sua cadeia produtiva podem revelar aspectos importantes acerca de diversos negócios. Deste modo, o marketing esportivo contempla várias possibilidades de exploração através da publicidade midiática, comercialização de produtos oficiais e patrocínios. Sendo assim, esse texto visou identificar as principais relações entre clubes de Santa Catarina e patrocinadores entre os anos de 1990 e o começo da década de 2020. A partir de metodologia exploratória-analítica com revisão bibliográfica e documental a pesquisa mostrou que, no período analisado, predominaram os interesses do capital local, ou seja, são os representantes da cidade ou região que mais investem nessa forma de negócio. Muitos patrocinadores mantêm seus aportes aos clubes como uma estratégia para atingir o público, sejam torcedores ou expectadores, pois essa categoria de marketing contempla várias possibilidades de exposição de suas marcas e propriedades. Já para os clubes, o patrocínio é importante para regularidade das receitas.
TÉCNICA DE ESPECTROSCOPIA DE INFRAVERMELHO NOS ESTUDOS DE CLIMA URBANO:
Authors: Santos Vladimir Aparecido Sorana dos
Published: October 2023

No Brasil os estudos de clima urbano têm ganhado força e se intensificado, isso graças às elevadas necessidades de compreensão e resolução de problemas ambientais que se apresentam nas/para sociedades, principalmente as urbanas, e, destacando as poluições atmosféricas como um dos grandes problemas da atualidade. Nesse sentido observa-se vigorosamente a utilização de variados métodos e tecnologias que possibilitam melhor e maior vislumbre dos dados climatológicos atrelados ao entendimento das concentrações de poluentes e suas espacializações. Esse trabalho tem o intuito apresentar modelos de obtenção e análises das poluições por material particulado total em suspensão (MPTS) em estudo do clima urbano. A cidade objeto do estudo é Dourados/MS, nas estações de inverno e primavera de 2017, utilizando-se dos métodos de captação de MPTS adaptado de Troppmair (1988) e de espectroscopia de infravermelho, este permite compreender de forma qualitativa os picos de absorção dos tipos de materiais, sejam orgânicos e/ou inorgânicos presentes na atmosfera urbana. Os métodos citados demonstram que para os MPTS as concentrações são maiores na primavera do que no inverno, pois nela há o aumento de microrganismos, pólen, insetos, entre outros tipos de matéria orgânica.
TURISMO AÉREO E CRISE: OS DESAFIOS ENFRENTADOS PELA AVIAÇÃO COMERCIAL DURANTE COVID-19
Authors: Camargos Borges Lucas , Alvarenga Samia
Published: October 2023

A aviação é um setor historicamente marcado pela sofisticação e pela fragilidade a crises. De fato, em 2020 o setor sofreu o seu maior golpe: a pandemia de covid-19. Para as empresas aéreas, essa crise representou uma queda acentuada em suas receitas, que entraram em um cenário de incertezas. O objetivo deste trabalho é avaliar como o setor foi impactado pela covid-19 e verificar quais estratégias adotadas pelas companhias aéreas foram vitoriosas e estabelecer um comparativo de como a crise afetou as empresas aéreas sediadas em países desenvolvidos e em países emergentes. Para isso, utiliza-se uma pesquisa de natureza aplicada e caráter descritivo que envolve a revisão documental para coleta de dados secundários. Estudam-se os relatórios periódicos de desempenho financeiro e operacional divulgados por diferentes companhias aéreas de diferentes países. Os principais resultados revelam que as estratégias mais utilizadas para conter os danos da crise foram: a negociação de prazos de pagamentos, novas captações de dívidas, suspensão de jornadas de trabalho de funcionários e até a transformação de aviões de passageiros em aviões cargueiros. Pode-se concluir ainda, que o cenário econômico do país em que estão situadas as companhias aéreas interferiu na forma como elas atravessaram o período.
EXTENSÃO DE NAVEGADOR PARA ACESSIBILIDADE WEB DE IDOSOS
Authors: Amorim Marlon Cesar , de Almeida Marcelo Nogueira , Pinto Reni Aparecido Norberto , Cedran Paulo Cesar
Published: October 2023

Este trabalho teve como objetivo o desenvolvimento de uma extensão de navegador com foco na melhoria da acessibilidade na web para idosos. Utilizou-se o método Design Science Research (DSR), que se concentra na criação e avaliação de soluções inovadoras para desafios práticos na área de tecnologia e sistemas de informação. Os resultados positivos em termos de eficiência e eficácia da extensão confirmam sua capacidade de ser uma ferramenta eficaz para aprimorar a acessibilidade na web para idosos. Sua aplicação prática demonstrou utilidade e relevância, contribuindo para a inclusão digital dos idosos e permitindo que eles participem ativamente do ambiente digital.
Critical Feminist Approaches to Migration and Mobility Justice in Canada: Guest Editors' Introduction
Authors: Kouri-Towe Natalie , Mahrouse Gada
Published: October 2023

This themed section examines how inequality constrain and enable contemporary human movement at state border crossings. It responds directly to questions, practices, and knowledge gaps that arise from critical migration/refugee studies, critical tourism studies, border studies, and/or mobility justice research by denaturalizing assumptions about the rights of some to choose to move across borders freely and others who are forced to leave, denied access, or detained. In so doing, we highlight research on human mobilities and borders in Canada to advance understandings on the dynamics of territorial control and access to state borders. What links the articles is the commitment to examining the reproduction of power through the following three shared understandings and starting points: (1) a critique of the Canadian nation state’s global reputation as exceptionally humanitarian (Nguyen and Phu 2021); (2) a consideration of the global entanglements of racial capitalism and colonialism that structures human movement (Gutiérrez Rodríguez 2018); and (3) an understanding that the mobilities of some and the immobilities of others coexist and are in fact co-produced (Ahmed et al. 2020; Bauman 1998; Sheller 2018).
Counter-Archive as Methodology
Authors: Reynolds Johanna , Wu Grace , Young Julie
Published: October 2023

Remembering Refuge: Between Sanctuary and Solidarity is a counter-archive based on oral history interviews with people who crossed the Canada-US border to seek refuge and advocacy groups working at this border in two moments of crisis: the 1980s Central American crisis and the 2017-19 crisis at Roxham Road. This paper foregrounds counter-archiving as a methodology, building from the oral histories to illustrate how borders and bordering practices are navigated and contested and how these lived experiences push back at state-directed logics and narratives of migration. By drawing connections across past and present struggles over mobilities and borders, we offer a critical genealogy of refuge around the Canada-US border. The oral histories collectively and individually contest state-led narratives of migration as a ‘crisis,’ the need for borders to be further securitized, and specifically of the Canadian state’s generous humanitarianism towards a select few. We introduce the methodological choices, contexts, and limitations of the project’s research design, and present two themes that emerged from the oral histories: the contested element of ‘choice’ in migration movements and the important roles played by resistance and refusal in the working out of borders. Finally, we emphasize that relationships between borders are crucial to understanding the histories of asylum around this border, and the political shift activated by the counter-archive of centering borders as lived, experienced, contested or refused.
Barcelona, ecosistema de formación en diseño
Authors: Massaguer Lluc
Published: October 2023

«Barcelona acoge el ecosistema más importante de formación en diseño de Europa», según Jose Luis de Vicente, nuevo director del Museo del Diseño de Barcelona. Una afirmación contundente que nos lleva a un paralelismo con el mundo natural. Al igual que un ecosistema natural, el del diseño está formado por organismos vivos que se relacionan entre sí y con su medio. En este sistema los organismos, que no son totalmente homogéneos, forman una comunidad y comparten flujos de energía.
Theatrical Architecture in the Andrzej Pronaszko’s Conception of Stage Space.
Authors: Popova Alexandra
Published: October 2023

The work of Polish stage designer Andrzej Pronaszko embodied in a particular manner a certain turn to a new approach to the organization of stage space, which appeared to be a characteristic process for the Polish and European theatre of the first half of XX century. Pronaszko cooperated intensively with professional architects, which had a considerable effect upon his conception of stage space. The article reviews projects of the artist, which proved to be a realization of his conception of stage space referred to the „theatre of the future”: the stage design for the „Golem” play (1928), set up on the circus arena and the theatrical architectural projects of Simultaneous theatre (1928-1929) and the Mobile theatre (1934). Each of those three was created in cooperation with an architect (with Szymon Syrkus in the first two cases and with Stefan Bryła in the third one). In Polish theatre between two World Wars, scenography came out as a special domain of an avant-garde activism manifesting an uprise of the „theatre of the future”, which offered prospects of some extraordinary perceptional experience. The reviewed projects presuppose overrunning the boundaries of conventional theatre and using innovative engineering solutions in stage organization, lightning and sound engineering. They became an ambitious attempt to change drastically the mode of theatrical event at the level of the space architectonics and extend thereby theatre’s capabilities in dealing with dynamics of spectacle. The artist created new conditions for affecting the spectator’s comprehension of the stage performance.
Self-awareness of Preschoolers Born from Multiple Pregnancies
Authors: Kuzmina Anna Sergeevna , Praizendorf Ekaterina Sergeevna , Khummel' Natal'ya Vladimirovna , Kulagina Dar'ya Alekseevna
Published: October 2023

The subject of the study is the self—awareness of a preschooler's personality. The purpose of the study is a comparative analysis of the structure of self—consciousness of preschoolers born from multiple pregnancies and single-born preschoolers who have and do not have siblings due to the influence of special evaluation factors. The authors conducted a comparative analysis of the self-consciousness of preschoolers in connection with the special social situation of development and the presence of siblings. The role of evaluative relationships in the development of self-awareness in preschool age is determined. Differences in the characteristics of self-consciousness of girls and boys of preschool age are revealed. Research methodology: cultural and historical approach (L.S. Vygotsky), concepts of self-consciousness of a preschool child (M.I. Lisina, V.E. Mukhina, R.H. Shakurov), the effect of twins R. Zazzo. The study involved 160 preschoolers, including 88 preschoolers born from multiple pregnancies, 72 single-born preschoolers. The existence of differences in the structure of self-consciousness of preschoolers born from multiple pregnancies and single-born preschoolers associated with the influence of special evaluative relationships within the social situation of development is theoretically substantiated and empirically proven. The main conclusions of the study are presented in the provisions. Preschoolers born from multiple pregnancies are characterized by a significantly lower level of self-esteem and self-acceptance in comparison with single-born preschoolers, which may be due to a special characteristic of the parent's evaluative relationships due to the social situation of development. For preschoolers born from multiple pregnancies, evaluative relationships of a parent of the same sex are significant for the formation of self-awareness.
Designing a Program of Educational Work at a Pedagogical University
Authors: Belkina Vera Valentinovna
Published: October 2023

The subject of the study is the process of developing a student education program as part of an educational program at a pedagogical university. The article includes a description of the program design algorithm, which includes analytical, target, design, substantive, procedural, organizational and reflexive steps. Also, the content of the article reflects the main ideas and stages reflecting the logic of educational work at the university, taking into account the course of study and the results provided for by the relevant standard of higher education. According to our research logic, the following stages of the educational work program are distinguished: stage 1 "Value-semantic self-determination" (1st year); stage 2 "Professional self-determination" (2-3 courses); stage 3 "Professional self-actualization" (4-5 courses); stage 4 "Professional self-realization" (young specialist). The basis of each stage is a system of interconnected tracks that determine the directions of solving educational tasks in a certain period of mastering an educational program by a student.    The main conclusions of the study are the following ideas that actualize the process of designing an educational work program: -educational work is part of the educational process and a component of the university environment; -educational work is of an event-activity nature; -educational work is variable, focused on voluntary self-determination and freedom of choice by students of activities; -educational work is carried out on the basis of the binary of educational influences on students in the university environment and the manifestation of the subjective position of students; -the results of educational work are part of the educational results of the Federal State Educational Standard and are formulated in terms of universal and general professional competencies. The novelty of the results obtained is determined by an innovative approach to design and the relative novelty of the phenomenon of considering the education program as part of the educational program, the appearance of which is associated with the corresponding amendments to the Federal Law "On Education in the Russian Federation" dated July 31, 2021.
Etnohistorias de América Latina y el Caribe
Authors: Erquicia Heriberto
Published: October 2023

Este es un trabajo colectivo, a partir de una convocatoria abierta, que dio como resultado el libro titulado: Perfiles etnohistóricos en América Latina y el Caribe, que contiene artículos que presentan resultados de investigaciones, reflexiones críticas, teóricas, metodológicas y técnicas de investigación utilizadas en los estudios etnohistóricos del área. El interés de la obra fue generar el debate sobre la articulación de los contextos locales a los procesos de la globalización y sus nexos históricos, políticos, sociales y culturales con América Latina y el Caribe. Es por lo que, en su mayoría, los textos trascienden las barreras geográficas y geopolíticas, y van más allá de los nacionalismos, regionalismos o de las áreas geográficas comúnmente trazadas por las fronteras del Estado nación. Los escritos permiten entender las diversas dinámicas sociales e interrelaciones históricas y geográficas del continente, con el entramado de nexos globales que inciden en la construcción de formas, fronteras e imaginarios particulares de ver, conocer y dominar al “otro” y lo “otro”. El libro está dividido en dos grandes secciones, una Etnohistorias de América Latina, siglos XVI-XX, y la otra Historia, derecho, género y políticas en América Latina, siglos XX y XXI. La primera sección inicia con el artículo denominado, Los Izalcos: Un altépetl complejo registrado por los tlaxcaltecas en 1524, de Hugo Díaz Chávez, Julio César Alvarado Hernández y David Calogero Messana Villafranco. Este artículo aporta a la comprensión de la distribución geográfica de los pueblos nahuas antes de la invasión y ocupación europea, así como, su impronta en las divisiones administrativas actuales.
A binding site for phosphoinositides described by multiscale simulations explains their modulation of voltage-gated sodium channels
Authors: Lin Yiechang , Tao Elaine , Champion James P , Corry Ben
Published: October 2023

Voltage-gated sodium channels (Naᵥ) are membrane proteins which open to facilitate the inward flux of sodium ions into excitable cells. In response to stimuli, Naᵥ channels transition from the resting, closed state to an open, conductive state, before rapidly inactivating. Dysregulation of this functional cycle due to mutations causes diseases including epilepsy, pain conditions, and cardiac disorders, making Naᵥ channels a significant pharmacological target. Phosphoinositides are important lipid cofactors for ion channel function. The phosphoinositide PI(4,5)P2 decreases Naᵥ1.4 activity by increasing the difficulty of channel opening, accelerating fast inactivation and slowing recovery from fast inactivation. Using multiscale molecular dynamics simulations, we show that PI(4,5)P2 binds stably to inactivated Naᵥ at a conserved site within the DIV S4–S5 linker, which couples the voltage-sensing domain (VSD) to the pore. As the Naᵥ C-terminal domain is proposed to also bind here during recovery from inactivation, we hypothesize that PI(4,5)P2 prolongs inactivation by competitively binding to this site. In atomistic simulations, PI(4,5)P2 reduces the mobility of both the DIV S4–S5 linker and the DIII–IV linker, responsible for fast inactivation, slowing the conformational changes required for the channel to recover to the resting state. We further show that in a resting state Naᵥ model, phosphoinositides bind to VSD gating charges, which may anchor them and impede VSD activation. Our results provide a mechanism by which phosphoinositides alter the voltage dependence of activation and the rate of recovery from inactivation, an important step for the development of novel therapies to treat Naᵥ-related diseases.
Elimination of subtelomeric repeat sequences exerts little effect on telomere essential functions in Saccharomyces cerevisiae
Authors: Hu Can , Zhu Xue-Ting , He Ming-Hong , Shao Yangyang , Qin Zhongjun , Wu Zhi-Jing , Zhou Jin-Qiu
Published: October 2023

Telomeres, which are chromosomal end structures, play a crucial role in maintaining genome stability and integrity in eukaryotes. In the baker’s yeast Saccharomyces cerevisiae, the X- and Y’-elements are subtelomeric repetitive sequences found in all 32 and 17 telomeres, respectively. While the Y’-elements serve as a backup for telomere functions in cells lacking telomerase, the function of the X-elements remains unclear. This study utilized the S. cerevisiae strain SY12, which has three chromosomes and six telomeres, to investigate the role of X-elements (as well as Y’-elements) in telomere maintenance. Deletion of Y’-elements (SY12YΔ), X-elements (SY12XYΔ+Y), or both X- and Y’-elements (SY12XYΔ) did not impact the length of the terminal TG1-3 tracks or telomere silencing. However, inactivation of telomerase in SY12YΔ, SY12XYΔ+Y, and SY12XYΔ cells resulted in cellular senescence and the generation of survivors. These survivors either maintained their telomeres through homologous recombination-dependent TG1-3 track elongation or underwent microhomology-mediated intra-chromosomal end-to-end joining. Our findings indicate the non-essential role of subtelomeric X- and Y’-elements in telomere regulation in both telomerase-proficient and telomerase-null cells and suggest that these elements may represent remnants of S. cerevisiae genome evolution. Furthermore, strains with fewer or no subtelomeric elements exhibit more concise telomere structures and offer potential models for future studies in telomere biology.
Ice nucleation proteins self-assemble into large fibres to trigger freezing at near 0 °C
Authors: Hansen Thomas , Lee Jocelyn , Reicher Naama , Ovadia Gil , Guo Shuaiqi , Guo Wangbiao , Liu Jun , Braslavsky Ido , Rudich Yinon , Davies Peter L
Published: October 2023

In nature, frost can form at a few degrees below 0 °C. However, this process requires the assembly of tens of thousands of ice-like water molecules that align together to initiate freezing at these relatively high temperatures. Water ordering on this scale is mediated by the ice nucleation proteins (INPs) of common environmental bacteria like Pseudomonas syringae and Pseudomonas borealis. However, individually, these 100 kDa proteins are too small to organize enough water molecules for frost formation, and it is not known how giant, megadalton-sized multimers, which are crucial for ice nucleation at high sub-zero temperatures, form. The ability of multimers to self-assemble was suggested when the transfer of an INP gene into Escherichia coli led to efficient ice nucleation. Here, we demonstrate that a positively charged subdomain at the C-terminal end of the central β-solenoid of the INP is crucial for multimerization. Truncation, relocation, or change of the charge of this subdomain caused a catastrophic loss of ice nucleation ability. Cryo-electron tomography of the recombinant E. coli showed that the INP multimers form fibres that are ~5 nm across and up to 200 nm long. A model of these fibres as an overlapping series of antiparallel dimers can account for all their known properties and suggests a route to making cell-free ice nucleators for biotechnological applications.
Phased array antenna controlled by FPGA-ARM Cortex-M Processor
Authors: Amara W. , Ghayoula R. , Hammami A. , Smida A. , El Gmati I. , Fattahi J.
Published: October 2023

This paper discusses the architecture of an adaptive transmitting antenna array that allows highly flexible beamsteering. Antenna arrays are used in many digital signal processing applications due to their ability to locate signal sources. The Direction of Arrival (DOA) estimation is a key task of array signal processing, with the Taguchi method and Multiple Signal Classification (MUSIC). Although various algorithms have been developed for DOA estimation, their high complexity prevents their use in real-time applications. In this paper, we design and develop an implementation using Field Programmable Gate Array (FPGA Artix-7), which is the most widely used ARM processor in embedded systems. The antenna array is digitally controlled with the phases synthesized by the Taguchi method.
A generalized fuzzy clustering framework for incomplete data by integrating feature weighted and kernel learning
Authors: Yang Ying , Chen Haoyu , Wu Haoshen
Published: October 2023

Missing data presents a challenge to clustering algorithms, as traditional methods tend to pad incomplete data first before clustering. To combine the two processes of padding and clustering and improve the clustering accuracy, a generalized fuzzy clustering framework is proposed based on optimal completion strategy (OCS) and nearest prototype strategy (NPS) with four improved algorithms developed. Feature weights are introduced to reduce outliers’ influence on the cluster centers, and kernel functions are used to solve the linear indistinguishability problem. The proposed algorithms are evaluated regarding correct clustering rate, iteration number, and external evaluation indexes with nine datasets from the UCI (University of California, Irvine) Machine Learning Repository. The results of the experiment indicate that the clustering accuracy of the feature weighted kernel fuzzy C-means algorithm with NPS (NPS-WKFCM) and feature weighted kernel fuzzy C-means algorithm with OCS (OCS-WKFCM) under varying missing rates is superior to that of seven conventional algorithms. Experiments demonstrate that the enhanced algorithm proposed for clustering incomplete data is superior.
Gestão de processos acadêmicos em universidades públicas brasileiras: o caso da Universidade do Estado do Amazonas
Authors: Da Silva Hélio Braz , Figueiredo Ingrid Sammyne Gadelha , Leal Cleto Cavalcante de Souza
Published: October 2023

Este estudo tem por objetivo descrever e analisar os mecanismos de processos acadêmicos, com as informações gerenciais, na contribuição da tomada de decisões da gestão acadêmica na Universidade do Estado do Amazonas. Como base teórica, utiliza-se os aportes sobre a gestão universitária e processos acadêmicos. Como metodologia tem-se análises de documentos e entrevistas com gestores. Como principais resultados, tem-se que a organização dos processos acadêmicos tem a estrutura construída por temática sem padrões entre si e a validação se encontra em processo de melhoria. Ainda, nota-se que a influência do processo acadêmico na decisão da gestão acadêmica é sobretudo na reformulações de atos existentes, avaliados quando da interação entre os órgãos das áreas acadêmicas envolvidos.
Life Beyond Retinal Surgery: A Survey
Authors: Khaqan Hussain Ahmad , Haider Muhammad Ali , Jabran Aamna , Rehman Hafiz Ateeq ur , Hassan Laraib , Farooqui Hafiz Mubashir , Zia Muhammad Usman , Fauzan Ahmad
Published: October 2023

Introduction: The purpose of our study is to find out about the hobbies of retinal surgeons, how they have followed their childhood hobbies and how some have evolved their hobbies while ho some have developed new hobbies over time and how their hobbies have been influenced by their work life.

Materials and Methods: This survey study consisted of 04 questions which were carefully extracted from previously published papers explaining the hobbies of retinal surgeons other than retinal surgery and finding out if they are satisfied in their current field or not practicing competent Retinal surgeons of the Institute were consulted to finalize the questionnaire who gave their valuable feedback and the survey points were revised and established.

Results: According to the results obtained from the questions regarding their childhood hobbies 36 reported sports as their childhood hobby, 16 said it was book reading, 6 reported watching television as their childhood hobby, 18 had the hobby of drawing in their childhood whereas 4 didn’t respond.

When inquired about their hobbies now, 36 reported reading books, 12 said it was swimming, 2 said it was singing songs, 6 enjoyed golf, 14 reported jogging as their hobby, 6 said their hobby is travelling, 4 surgeons didn’t respond.

Conclusion: It was seen that most of the retinal surgeons carried their childhood hobbies as their adulthood hobbies while some also had different hobbies as adults compared to their childhood hobbies.
Diseases and Pests Harmful to Honeybees (Apis spp.) and Their Management Tactics: A Review
Authors: Kushwaha Dhananjay , Teja Katta Subramanya Sai , Kumar Nagendra , Aman Ashutosh Singh , Kumar Arun , Jaiswal Shailja , Bajpeyi Madan Mohan , Khan Anam
Published: October 2023

Honeybees (Apis spp.) play a vital role in pollination and contribute significantly to global agriculture. However, the health and survival of honeybee colonies are threatened by a range of harmful insect pests and diseases. This review provides an overview of the major pests and diseases that impact honeybee colonies and explores the diverse management tactics employed to mitigate their effects. The primary focus is on key pests such as the Varroa mite (Varroa destructor), which inflicts considerable damage by parasitizing adult bees and their brood, facilitating the transmission of debilitating viruses. Management strategies for Varroa mites encompass chemical treatments, integrated pest management (IPM) approaches, and organic treatments to curtail mite populations and prevent colony collapse. Another significant threat discussed is the small hive beetle (Aethina tumida), a beetle species that disrupts hives by laying eggs in comb and consuming stored resources. Hive manipulation, traps, and chemical controls are among the tactics utilized to control small hive beetle populations and mitigate their impact. The review also addresses wax moths (Galleria mellonella and Achroia grisella), which target hive comb, potentially causing comb destruction and honey fermentation. Hive maintenance, freezing, and pheromone traps are outlined as effective strategies to combat wax moth infestations. Additionally, the review covers Nosema infections (Nosema apis and Nosema ceranae), and microsporidian parasites that compromise adult bee health by weakening immune systems and reducing foraging efficiency. Hive hygiene, medications, and genetic selection are explored as methods to manage Nosema infections and bolster colony resilience. To effectively manage these harmful pests and diseases, a holistic and integrated approach is recommended. Beekeepers are encouraged to remain informed about the latest research findings and implement appropriate measures, considering local conditions and sustainable beekeeping practices. By combining scientific knowledge with practical application, the resilience of honeybee colonies can be enhanced, ensuring the vital role they play in pollination and global food security.
Assessment of Soil Fertility Status of Different Villages of Solan District of Himachal Pradesh, India
Authors: Devi Meera , Chauhan Jitender Kumar , Shukla Arti , Sharma Anurag , Kumari Yourmila , Garima
Published: October 2023

The current study has been conducted in Solan district of Himachal Pradesh to evaluate soil physico-chemical parameters and soil health. The soil samples have been collected from farmer's field of five villages of Solan district. From each village 10 farmers were randomly selected and making the sample size 50. The findings showed thatSoil pH ranged from 6.23 to 7.34 and electrical conductivity (EC) of the entire study area remained below 0.29 dSm-1. It was discovered that there was a marked variation in chemical parameters of various samples viz. Soil Organic Carbon (SOC), available nutrients (NPK) and available micro nutrients. SOC ranged between 0.53 to 2.03 per cent, available nitrogen content varied from medium to high, phosphorus content remained at high range, but varied from 54.78 to 65.71 kg ha-1 and available potassium content varied from medium to high range. The findings also demonstrated a strong and positive relationship between organic carbon and available nitrogen. Farmers were given soil health cards after testing soil samples from various areas.
System Intensification in Ridges and Furrow Planting to Enhance Nutrient Uptake Efficiency in Soybean
Authors: Naithani Pragya , Kumar Ajay
Published: October 2023

Through the study we aim to explore agronomic intervention to provide nutritional security to growing population, with limited resources and changing climatic conditions. The objective of the study is to investigate the impact of system intensification on nutrient content and nutrient uptake in soybean varieties within ridge and furrow planting system. The experiment was conducted during Kharif 2019 at Pantnagar, India. It was designed in a split-plot layout with eight treatments, replicated thrice. The main plot treatments included two soybean varieties: PS-1092 and SL-958. Four system intensification treatments were within the sub-plots, (plant-to-plant spacing -5 cm, 10 cm, 15 cm, and 20 cm). Nitrogen, Phosphorus, Potassium and Sulfur content in seed was significantly highest at spacing 10 cm as compared to other spacing treatments (P value=.05). Nitrogen, Phosphorus Potassium and Sulfur uptake for both seed and stover was the maximum at plant to plant spacing of 10 cm which was significantly higher than other plant to plant spacing treatments at 5 % level of significance. Intense plant to plant spacing of 10 cm resulted into the significantly higher partial factor productivity (PFP) of nutrients at P=.05. Although nutrient content, nutrient uptake and PFP in soybean is higher at plant to plant spacing of 10 cm, nutrient harvest index is better achieved at wider spacing of 15 to 20 cm. Under no fertilizer limitation, system intensification can be useful to enhance nutrient content of seeds but in cases of limited fertilizer availability wider spacing is more beneficial to achieve higher nutrient use efficiency. Further investigations are needed to fine-tune these practices across diverse geographic regions and soil types. GHG emissions from soybean grown in varying planting geometry needs to be studied.
Influence of Reduced Seed Rate and Sowing Methods on Growth Parameters and Seed Yield of Soybean (Glycine max L. Merr.)
Authors: Byadgi Sumalata , Jyothi B. L.  , Kamat Ashwini , Siddaraju R.
Published: October 2023

The field experiment was carried out during Kharif, 2018 and 2019 with an objective to increase the productivity of soybean with reduced seed rate and varied sowing methods. The experiment comprising of two sowing methods viz., flatbed and raised bed, two varieties (JS-335 and JS-9560) and three seed rates (70, 60, and 50 kg ha-1) was laid out in split plot design with four replications. The growth and yield parameters viz., plant height (44.77 cm), canopy diameter (22.50 cm), pods per plant (37.72) and seed yield ha-1 (18.32 q) were maximum in raised bed method of planting.  Use of lower seed rate i.e., 50 kg ha-1 produced maximum canopy diameter (23.97 cm2), pods plant-1 (39.86), seed yield plant-1 (15.12 g) and seed yield ha-1 (17.05q). Hence, there is a possibility of optimizing yield of soybean by adopting raised bed method of sowing at the seed rate of 50 kg ha-1.
Influence of Diet and Dietary Crude Protein Content on the Reproductive Performance of the Snail Archachatina marginata (Swainson, 1821)
Authors: Sika Nygblé Angèle Epse Piba , N'dri Kouassi Jerome , Amani N'dri Saint Clair
Published: October 2023

The pressure to collect snails due to the high demand for their meat has encouraged snail farming. However, snail farming faces a number of problems, including the formulation of a feed that meets the nutritional requirements of snails. The aim of this study was to evaluate the influence of plant-based diets and three concentrated diets, and then to determine the protein level to be incorporated into a concentrated feed capable of positively influencing the reproductive performance of the Archachatina marginata snail. The study was conducted on 225 Arch. marginata juveniles fed two plant-based diets (R1 and R2) and 3 concentrated meal diets (R3, R4 and R5) with different protein contents (10.5%, 14% and 17.5%) for two years in experimental rearing. The R1 diet consists of Lactuca sativa, Carica papaya, Brassica oleracea, Cecropia peltata, Laportea aestuans and Phaulopsis falcisepala. The R2 diet was obtained by adding Leucena leucocephala leaves to R1. The first eggs were laid at 12 months on the R1 and R2 green forage diets and at 10 months on the R3 concentrate diet. Snails fed concentrated diets R4 and R5 laid their eggs at 9 months. The number of eggs laid per clutch and the average number of eggs per clutch in the animals fed the concentrated diets were statistically higher than those obtained with the vegetable diets (between 0.34 and 0.45 clutches and between 6.10 and 7.46 eggs respectively). The concentrated diets significantly improved the reproductive performance of Arch. marginata compared with the vegetable diets. In addition, reproductive performance was optimal on the R5 diet with the highest protein incorporation rate.
Temporal Variation of Methanogenic Microbial Community in Palm Oil Mill Effluent (POME) Anaerobic Digester
Authors: Ng Hui Jing , Jalil Nur Kamilah Abd , Audu Jemilatu Omuwa , Abdul-Wahab Mohd Firdaus
Published: October 2023

Palm Oil Mill Effluents (POME) serve as suitable substrates for methane gas production through anaerobic digestion. This process relies on a complex microbial community that plays a critical role in ensuring stable anaerobic digester operation and efficient biogas production. Among these microorganisms, methanogenic archaea are pivotal in methane generation by utilizing diverse substrates under anoxic conditions. However, the knowledge of the microbial communities, particularly those involved in methane production in POME anaerobic sludge at different time intervals, remains limited. This study aims to uncover temporal variations in microbial communities, including diversity, composition, and structure, within POME anaerobic sludge, specifically focusing on the methanogenic archaea community. The temporal dynamics of microbial communities in the eighteen POME anaerobic sludge samples collected from a palm oil mill were investigated through 16S rRNA amplicon sequencing. The results reveal consistent microbial community diversity in POME anaerobic sludge over the study periods. Then, the sequencing also showed that Bacillota (26.9 ± 3.3%), Bacteroidota (20.2 ± 5.3%), and Chloroflexota (15.0% ± 6.3%) were the dominant bacterial phyla in POME anaerobic sludge across different time frames. Concurrently, Halobacteriota (5.9 ± 2.8%), Methanobacteriota (2.5 ± 0.6%), and Nanoarchaeota (2.3 ± 1.2%) were the primary archaeal phyla identified in anaerobic sludge at various time intervals. Furthermore, amplicon sequencing revealed the presence of two methanogenic archaea genera, Methanothrix and Methanobacterium, associated with acetoclastic and hydrogenotrophic methanogenesis, respectively. These findings suggest that acetoclastic and hydrogenotrophic methanogenesis pathways are the primary contributors to methane production in the POME anaerobic digestion process.
VOLUNTARIADO
Authors: Nicoloso Tatiane , Santos Leticia Gomes dos , Rosa Ana Claudia da , Souza Veridiane Barbara de
Published: October 2023

Em um contexto em que o voluntariado ganha importância como uma maneira de viabilizar a demanda de mão de obra gerada no Terceiro Setor para o desenvolvimento das atividades, este estudo se propõe a discutir qual a importância do voluntariado em uma entidade sem fins lucrativos em Santa Maria, RS. Para tanto, como forma de responder ao objetivo geral, utilizou-se como objetivos específicos, analisar o perfil dos voluntários atuantes na associação, descrever o papel dos voluntários em sua atuação diária na organização e caracterizar o voluntariado enquanto valor para a associação estudada. Percebe-se a necessidade de compreender as motivações que levam os indivíduos a partilharem do seu tempo e trabalho espontaneamente, sendo assim para o desdobramento do método partiu-se de uma pesquisa de cunho descritiva com abordagem qualitativa, onde para a coleta de dados foram realizadas entrevistas semiestruturadas. Essas entrevistas basearam-se no framework proposto por Gemelli, Bitencourt e Santos (2015) e testado por Gemelli e dos Santos (2016), o qual considera as quatro dimensões de motivação para o trabalho voluntário, cuja categorização fundamenta-se em uma abordagem multifacetada das motivações para o trabalho voluntário, deixando de lado a discussão baseada em altruísmo e egoísmo.  Para análise dos dados, adotou-se a técnica de análise do conteúdo, com base em Bardin (2011), considerando as interpretações que cada sujeito tem do objeto em pesquisa, obtendo como resultados mais relevantes as categorias satisfação pessoal, pertencimento ao grupo, desenvolvimento das habilidades e crença nos objetivos da organização como fatores motivacionais que impulsionam os indivíduos a voluntariar.