bluuebunny/crossref_metadata_2025 huggingface dataset:
Genetic diversity based on multivariate techniques in elephant grass genotypes for bioenergy
Authors: Vidal A. K. F. , Daher R. F. , Freitas R. S. , Santana J. G. S. , Stida W. F. , Ambrósio M. , Silva V. B. , Souza A. G. , Nascimento M. R. , Santos R. M. , Leite C. L. , Farias J. E. C.
Published: February 2024

Abstract The use of biomass for energy production constitutes a promising strategy that warrants the search for new sources of biomass. Elephant grass has been gaining notoriety due to its high dry matter yield and rapid growth. The present study was carried out to quantify the genetic divergence of nine elephant grass half-sib families in order to identify genotypes with greater genetic divergence and productive potential for hybridization, using the hierarchical clustering methodology based on principal components. Half-sib families were generated using genotypes from the Active Germplasm Bank of Elephant Grass. The experiment was laid out in a randomized-block design with nine half-sib families, three replicates, and eight plants per plot. A total of 216 genotypes of elephant grass were evaluated. Principal component (PC), biplot, and hierarchical clustering analyses for diversity estimation were conducted using R software. The first two PCs of biplot analysis accounted for 64% of the cumulative variation. Dry matter yield was the most important trait for genotype discrimination (0.89), followed by plant height (0.67) and stem diameter (0.61) in PC1. In this analysis, the distances between accessions were considered and there were no family links, which indicates the existence of wide variability within the evaluated families, since genotypes belonging to the same family were not grouped together, but rather distributed into different groups. Crosses between genotypes of group three and genotypes of groups one and two are recommended for the development of high-yielding genotypes when aiming at energy production.
Increasing the meat productivity of young sheep based on the use of the gene pool of the Dorper and Hissar breeds
Authors: Ombayev A. , Parzhanov Zh. , Azhimetov N. , Zhylkibayev A. , Abishov M. , Issabayeva A.
Published: February 2024

Abstract In the pursuit of enhanced mutton production, improving the genetic reservoir of sheep with early maturation and high meat productivity is imperative. This study aims to assess the efficacy of integrating Dorper and Hissar rams into the breeding program of Kazakh fat-tailed coarse-haired ewes for generating young mutton. The research involved forming three groups, each comprising 40 ewes of the Kazakh fat-tailed coarse-haired breed, based on analog pairs. Ewes in Group I were inseminated with Dorper ram semen, those in Group II were inseminated with Hissar ram semen, and Group III served as a control with purebred Kazakh fat-tailed coarse-haired sheep breeding. Results revealed that crossbred rams in Group II achieved a significantly higher live weight of 45.2 kg at 120 days of age, surpassing the other groups by 9.7 kg and 10.6 kg. Crossbred gimmers in Group II reached a live weight of 42.0 kg by 4 months, outpacing the other groups by 12.2 kg. The crossbred lambs exhibited an expansive, deep, and sturdy physique, indicative of elevated meat productivity. Physique index analysis displayed that crossbred rams exhibited elongated limbs, bulkiness, and massiveness compared to purebred Kazakh fat-tailed coarse-haired lambs. In the 4.0-4.5-month age range, crossbred rams demonstrated a higher carcass muscle yield than their purebred counterparts, albeit the latter exhibited a 0.18% greater bone yield. Moreover, the meat of groups I and II sheep contained 19.6% and 20.1% protein content, respectively, surpassing the local Kazakh fat-tailed sheep population by 0.7% and 1.2% in absolute terms.
Vertebral osteomyelitis caused by Enterococcus faecalis in broiler chickens from southern Brazil
Authors: Menck-Costa Maísa F. , Huijboom Julian A.A. , Souza Marielen de , Justino Larissa , Costa Arthur R. da , Bracarense Ana Paula F.R.L. , Pereira Ulisses P. , Baptista Ana Angelita S.
Published: February 2024

ABSTRACT: Enterococcal spondylitis affects poultry and causes progressive lameness. This study reports what seems to be the first case of vertebral osteomyelitis caused by Enterococcus in broiler chickens in southern Brazil. We also conducted an experimental infection to evaluate microorganismal characteristics and pathogenicity in broiler chickens. We performed bacterial isolation, identification, and histopathology. The isolates were tested for their growth and survival capacity at different temperatures, pH values, and antimicrobial resistance profiles. The experiment infection was conducted with broiler breeders (n=9). Group 1 = negative control, Group 2 = challenged orally, Group 3 = challenged via air sac. The autopsy was performed on the 50th day of life (DOL). The report showed spondylitis and fusion of thoracic vertebra, accompanied by spinal cord compression, and femoral head necrosis. We used the isolates (n=17) to test their growth at 10°C and 45°C, survival capacity for up to 60° for 30 min, and growth under pH levels from four to 12. Higher resistance was observed against macrolides and quinolones. On experimental infections, all animals expressed signs of lameness and “sitting on the hocks”. Enterococcus faecalis is the causal agent of enterococcal spondylitis in broilers in southern Brazil, which is an underreported and emerging pathological condition that requires attention.
Fusobacterium necrophorum predominates in the microbiota of mandibular dental abscess in Blastocerus dichotomus
Authors: Borsanelli Ana Carolina , Athayde Flávia R.F. , Saraiva Júlia R. , Silva Tamires A. , Mendes Juliana G. , Zanetti Eveline S. , Riggio Marcello P. , Dutra Iveraldo S.
Published: February 2024

ABSTRACT: Dental abscess in ruminants is an acute polymicrobial infection, usually resulting from periodontal disease or endodontic infection, with consequences for animal health and welfare. The present study aimed to describe the bacterial microbiota of dental abscesses in Blastocerus dichotomus. Biological material from mandibular dental abscesses, punctured with a sterile syringe and needle during routine veterinary curative procedures or necropsies, was collected from three ex-situ marsh deer. Bacteria were identified using high-throughput sequencing of the 16S ribosomal RNA gene. The three specimens had the presence of facial bulging, and two died because of severe emaciation with a history of progressive weight loss. Bacteroides (38.6%), Fusobacterium (36.65%), and Porphyromonas (7.49%) represented the most abundant genera and Fusobacterium necrophorum (35.69%), Porphyromonas levii (3.12%) and Porphyromonas gulae (1.78%) were among the ten most represented species in the microbiota of mandibular abscess in Blastocerus dichotomus. These molecular findings demonstrate a broader diversity of species in the polymicrobial nature of dental abscesses in B. dichotomus than was previously reported when culture-dependent methods were used in the diagnosis.
Efeito da idade a primeira concepção como critério de seleção em características de crescimento e carcaça em bovinos Nelore
Authors: Brunes Ludmilla Costa , Baldi Fernando , Costa Marcos Fernando Oliveira e , Lobo Raysildo Barbosa , Lopes Fernando Brito , Magnabosco Cláudio Ulhoa
Published: February 2024

Resumo Objetivou-se identificar características indicadoras de precocidade sexual de fácil mensuração e que podem ser registradas em menor idade (idade à primeira concepção - IPC), além de estimar as correlações genéticas dessa característica com aquelas de crescimento e carcaça em bovinos Nelore. A IPC foi considerada a idade em que a fêmea apresentou o primeiro diagnóstico positivo de prenhez. A estimativa dos componentes de (co)variância e dos parâmetros genéticos foi realizada usando modelo animal linear em análises bicaracterísticas. As estimativas de herdabilidade foram moderadas, indicando viabilidade de seleção genética para características de crescimento, carcaça e precocidade sexual. As correlações genéticas obtidas entre o IPC e a idade ao primeiro parto (IPP) foram altas (0,88), indicando a viabilidade do uso de IPC como critério de seleção para parto em idade precoce de novilhas. As estimativas de correlações genéticas entre IPC e IPP com peso aos 120, 210, 365 e 450 dias de idade e características de carcaça foram moderadas e negativas (-0,33 a -0,62). Assim, a seleção genética para animais com IPC e IPP precoces aumentaria o rendimento de carcaça, a deposição de gordura e o peso corporal, embora não afete o peso ao nascer e o ganho de peso diário. Os resultados deste estudo encorajam o uso de IPC em bovinos Nelore, uma vez que esta característica apresentou variabilidade genética em bovinos Nelore, podendo ser utilizada como critério de seleção para melhorar a precocidade sexual. Quando o objetivo de seleção genética é aumentar a precocidade sexual das novilhas, indica-se o uso de IPC como critério, pois a mensuração desta característica ocorre em idade menor IPP.
Níveis crescentes de fubá de milho melhoram parâmetros químico-bromatológicos e fermentativos da silagem de maniçoba
Authors: Silva Pedro Henrique Ferreira da , Neves Romildo da Silva , Medeiros Geovergue Rodrigues de , Costa José Henrique Souza , Ribeiro Neila Lidiany , Carvalho Chrislanne Barreira de Macêdo , Cavalcante Iara Tamires Rodrigues , Santos Severino Guilherme Caetano Gonçalves dos
Published: February 2024

Resumo A ensilagem da maniçoba (Manihot pseudoglaziovii) é importante para preservar os nutrientes dessa planta forrageira. Todavia, o teor de umidade da planta pode gerar fermentações indesejáveis. Objetivou-se avaliar efeito de níveis de fubá de milho (0, 10, 20 e 30%) sobre a composição bromatológica e parâmetros fermentativos da silagem de maniçoba, além de identificar as variáveis mais afetada pelo aditivo. As concentrações de matéria seca (MS), carboidratos não-fibrosos (CNF), nutrientes digestíveis totais (NDT) e ácido propiônico aumentaram em função dos níveis de fubá de milho (P<0,05). Os teores de proteína bruta (PB), lignina e ácido butírico, além do pH, foram reduzidos pelo aditivo (P<0,05). Dois grupos foram formados na análise de componentes principais. O grupo I foi formado por variáveis afetadas positivamente pela inclusão do fubá de milho: MS, hemicelulose, CNF e NDT. O grupo II foi formado por variáveis que tiveram seus valores reduzidos pela inclusão do aditivo: PB, lignina, matéria mineral e ácido butírico. A silagem de maniçoba, com ou sem fubá de milho, apresenta bom perfil fermentativo e composição bromatológica adequada para a alimentação de ruminantes. Os teores de MS e NDT são as variáveis da composição químico-bromatológica mais influenciadas pela inclusão do fubá de milho, enquanto pH e ácido butírico são as variáveis do perfil fermentativo mais afeadas pelo aditivo absorvente. Sugere-se a inclusão de níveis moderados de fubá na silagem de maniçoba para obter melhor perfil de fermentação e a maior concentração de nutrientes digestíveis, sem descaracterizar o alimento como volumoso.
3D implant of copolyamide associated with thermoplastic elastomer (PCTPE) for tracheal repair in rabbits (Oryctolagus cuniculus): preliminary study
Authors: Rein Ariadne , Costa Marcelo Carrijo da , Montanhin Gabriel , Fernandes Gustavo , Leite Marcella Dall’ Agnol , Carra Gabriel João Unger , Vasconcelos Rosemeri de Oliveira , Dias Luís Gustavo Gosuen Gonçalves , Rocha Thiago André Salvitti de Sá , Moraes Paola Castro
Published: February 2024

Abstract Large segmental tracheal defects can pose a serious clinical challenge owing to the lack of suitable substitutes for reconstructive surgery. Polymeric biomaterials are widely used in medicine. However, the implantation of biomaterials triggers a series of biological events, and material biocompatibility is of paramount importance in regenerative medicine. The objective of this study was to evaluate the use of a copolyamide associated with thermoplastic elastomer (PCTPE) in 3D-printed prostheses for repairing partial tracheal defects in rabbits. Sixteen male New Zealand White rabbits were used, and partial tracheal defects were created in the ventral region from the 4th to the 8th tracheal ring. The animals were subdivided into groups (n=4) based on the time of euthanasia, scheduled at seven days (G7), 15 days (G15), 30 days (G30), and 60 days (G60). Histopathological analysis with hematoxylin and eosin staining revealed that the 3D implant of PCTPE exhibited a foreign body reaction, and inflammation persisted for up to 60 days. Histochemistry with picrosirius red revealed a tendency for a greater amount of type I collagen to accumulate in the early stages of inflammation, whereas type III collagen was predominant in later evaluation periods. These findings suggest an exacerbated and inadequate tissue-material interface reaction and perpetuation of the inflammatory process.
Lecitina integral de soja na produtividade e qualidade de carcaças de bovinos confinados
Authors: Neumann Mikael , Bremm Elisa Emanuela , Souza André Martins de , Oliveira Paulo Eduardo Piemontez de , Sidor Fernando de Souza , Plodoviski Daniel Corrêa , Karas Bruna Maria Hoffmann , Skorei Marcia Regina , Ostrensky André
Published: February 2024

Resumo O presente estudo teve por objetivo avaliar o efeito de diferentes doses de lecitina integral de soja na digestibilidade aparente da dieta, comportamento ingestivo, desempenho produtivo, e nas características de carcaça de bovinos de corte terminados em confinamento. O delineamento experimental foi inteiramente casualizado, constituído de três tratamentos, sendo: Ração controle; Ração com lecitina integral de soja (10 g animal dia-1); e Ração com lecitina integral de soja (20 g animal dia-1), com cinco repetições. As rações, em base na matéria seca, foram formuladas e constituídas por 33% de silagem milho e 67% de concentrado. Foram utilizados 30 novilhos não castrados, ½ sangue Angus Nelore, com idade média de 14 meses e peso vivo médio inicial de 432,3 kg. A digesibilidade do extrato etéreo e da fibra em detergente neutro foi melhorada com a inclusão de lecitina integral de soja, já o comportamento ingestivo não foi alterado. A suplementação com 10 g animal dia-1 de lecitina integral de soja proporcionou maior média para ganho de peso (1,707 kg dia-1) seguido dos animais não suplementados (1,645 kg dia-1) e suplementados com lecitina integral de soja na dose de 20 g animal dia-1 (1,587 kg dia-1). Em relção ao acabamento das carcaças, este não foi alterado com a suplementação de lecitina integral de soja. O uso de lecitina integral de soja melhorou o aproveitamento da fração etérea e fibrosa da ração, e garantiu a maior média para ganho de peso, sendo a dose de 10 g animal dia-1 com melhores respostas.
Efeito do óleo essencial de Mentha piperita na conservação de carne refrigerada do peixe híbrido tambatinga
Authors: Pretto Alexandra , Lopes Jane Mello , Marinho Iara Reis , Doihara Izumy Pinheiro , Costa Thaisa Sales , Teixeira Claudener Souza , Monteiro Odair dos Santos
Published: February 2024

Resumo A busca por alimentos mais seguros levou a uma maior atenção da pesquisa para encontrar alternativas naturais aos aditivos sintéticos usados na indústria alimentícia. Os conservantes naturais, como os óleos essenciais (OE) de plantas, podem aumentar a conservação dos peixes e até afetar positivamente a saúde humana. Portanto, o objetivo do estudo foi avaliar o efeito do OE de Mentha piperita nas características físico-químicas e concentração de microrganismos em carne resfriada de tambatinga (Colossoma macropomum × Piaractus brachypomum). O OE de M. piperita foi preparado em três concentrações (0%, 0,25% e 0,50%) em solução contendo água destilada, propilenoglicol e Tween. As amostras de carne permaneceram imersas nesta solução por 60 min; em seguida, foram acondicionados em embalagens plásticas e armazenados sob refrigeração (± 0,4°C) por 14 dias. Durante esse armazenamento foram determinados pH, bases nitrogenadas voláteis totais (BNVT), peróxidos, substâncias reativas ao ácido tiobarbitúrico (TBARS) e contagens de microrganismos mesófilos aeróbios estritos e facultativos. Os principais constituintes encontrados no OE de M. piperita foram geranial (32,28%), neral (18,64%) e ácido gerânico (6,98%). Nenhuma das concentrações de OE afetou as BNVT, mas houve algumas alterações no pH. Tanto 0,25% quanto 0,50% de OE reduziram a formação de peróxidos e TBARS. O crescimento de microrganismos foi reduzido no tratamento com 0,50% de OE. Com base nos resultados, a concentração de 0,50% de OE foi mais eficaz na redução da deterioração da carne mantida refrigerada por até 14 dias.
Distribuição das artérias coronárias e análise histopatológica do coração de (Bradypus variegatus)
Authors: Albuquerque Priscilla Virgínio de , Torres Sandra Maria de , Mesquita Emanuela Polimeni de , Nascimento Júlio Cézar dos Santos , Ribeiro Apolônio Gomes , Evêncio Neto Joaquim , Andrade Gilcifran Prestes de , Amorim Júnior Adelmar Afonso de , Amorim Marleyne José Afonso Accioly Lins
Published: February 2024

Resumo A preguiça-comum (Bradypus variegatus) tem sido vítima das investidas antrópicas desordenadas, o que tem elevado o número de acidentes e doenças para a espécie. Propôs-se com esse estudo, realizar uma descrição das artérias coronárias, assim como apontar os achados histopatológicos do coração do bicho-preguiça, a fim de favorecer o diagnóstico por imagem, semiologia e clínica médica das espécies. Foram dissecados 18 exemplares de B. variegatus obtidos após morte natural. Quinze deles, sendo 5 machos e 9 fêmeas adultas e 1 jovem, foram fixados com formaldeído e conservados em solução salina. Em 2 machos e 1 fêmea, foi injetado, a partir da artéria carótida comum esquerda, látex corado em vermelho, para tornar as coronárias mais evidentes. Na fêmea também foi injetado através da veia jugular externa direita, látex corado em azul, para evitar equívoco na identificação arterial. Os animais tiveram o tórax aberto a fim de avaliar e retirar o coração para descrição detalhada das artérias coronárias. Para análise histopatológica, foram confeccionadas lâminas histológicas oriundas de corações coletados de 4 animais (3 adultos e 1 jovem). Com base nas análises arteriais, as preguiças possuem duas coronárias: uma a direita e uma a esquerda, que irrigam suas respectivas faces. O coração é composto por endocárdio, miocárdio e epicárdio, semelhante aos mamíferos em geral. Todavia, observou-se necroses endocárdicas, de fibras musculares cardíacas, além de degenerações mixomatosas de válvulas e trombos no lúmen vascular. Esses eventos necróticos, mais extensos, estão relacionados a infartos, enquanto os mais discretos podem ser associados a situações de estresse vivenciadas pelos espécimes.
Factors related to health literacy among Brazilian adolescents: cross-sectional study
Authors: Pimentel Sidiany Mendes , Avila Marla Andréia Garcia de , Medeiros Vinnicius Dias Alves de , Prata Rafaela Aparecida , Nunes Hélio Rubens de Carvalho , Silva Juliana Bastoni da
Published: February 2024

ABSTRACT Objective: To analyze the relationship between sociodemographic and clinical factors with health literacy in Brazilian adolescents. Method: This is a cross-sectional study with 526 adolescents aged 14 to 19. Data were collected virtually between July and September 2021 using a sociodemographic characterization questionnaire, clinical profile and the Health Literacy Assessment Tool – Portuguese version. The variables were evaluated by multiple linear regression with normal response, with significance p < 0.05. Results: The average age was 16.9 years (±1.6), the average health literacy score was 25.3 (±5.4). Female gender (p = 0.014), university educational level (p = 0.002) and use of medication (p = 0.020) were related to higher levels of health literacy. Adolescents with chronic illnesses had a higher total literacy score, on average 1.51 points, compared to those without chronic illnesses. Conclusion: Male adolescents and those with less education performed worse in health literacy and, therefore, deserve special attention in health promotion actions.
TECHNOLOGY AND INNOVATION IN PROFESSIONAL EDUCATION: A CRITICAL ANALYSIS
Authors: Oliveira Luis Paulo Nallin de , Mansano Sonia Regina Vargas
Published: February 2024

ABSTRACT This study aims to analyze the psychosocial effects gained by technology and innovation areas nowadays, as well as their impacts on professional education. To this end, this research includes a brief historical overview in which we present how elements of technological innovation produce local and historical effects that guide contemporary urban life. The empirical section presents a descriptive qualitative study that includes statements from five engineering professors who work at a public university located in the interior of the state of Paraná, Brazil. The results indicate that engineering is connected to prescriptions focused on work performance and the endorsement of technology use in daily life. Thus, it remains distant from a critical analysis of the psychosocial effects brought about by technological innovations, particularly concerning job placement. As a partial conclusion, we highlight that practices related to technology and innovation meet the demands of different types of populations, companies, and governments, reinforcing their relevance for social organization. At the same time, it is evident that the area lacks a critical analysis regarding its actions in the sphere of social inclusion and exclusion.
Protagonisms of Dissident Corporealities: creative processes for the project Decolonizando Práticas Cênicas...
Authors: Colin Daniel dos Santos
Published: February 2024

ABSTRACT Protagonisms of Dissident Corporealities: creative processes for the project Decolonizando Práticas Cênicas... – This text presents fundamental principles of the decolonial perspective in possible intersections with the arts of the body. A brief critical reflection is made on the artistic-pedagogical activities that made up the cultural project Decolonizando Práticas Cênicas… (Decolonizing Scenic Practices…), held in 2021, which central objective was to praise dissident subjects and their effective elevation to the status of protagonists of authorial videoperformances. Some of these works are analyzed using concepts and practices that permeate the performing arts, the decolonial turn and gender and sexuality studies.
Urbanidade e Gênero: o que desloca um corpo que caminha?
Authors: Boito Sofia Rodrigues
Published: February 2024

RESUMO Urbanidade e Gênero: o que desloca um corpo que caminha? – O presente artigo explora a relação entre corpo e deslocamento urbano desde uma perspectiva do feminismo intersec-cional. Com base em estudos recentes sobre urbanidade e gênero – feminismos, arte e espaço públi-co –, serão analisadas práticas artísticas modernas e contemporâneas na urbe, considerando a fricção entre corpos genderizados e cidade. O intuito é discutir o deslocamento que certos corpos instau-ram ao caminhar livremente pelo espaço urbano.
Urbanity and Gender: what displaces a walking body?
Authors: Boito Sofia Rodrigues
Published: February 2024

ABSTRACT Urbanity and Gender: what displaces a walking body? – This article explores the relation between body and urban displacement from an intersectional feminist perspective. Based on recent studies on urbanity and gender – feminisms, art and public space – we will analyze modern and contemporary artistic practices in the city, considering the friction between gendered bodies and the city. The aim is to discuss the displacement that certain bodies establish when walking freely through the urban space.
MULHERES RETRATADAS EM PAPEL E PENA: EDUCAÇÃO E COTIDIANO FEMININO NO SÉCULO XIX
Authors: Vasconcelos Maria Celi Chaves , Patroclo Luciana Borges
Published: February 2024

RESUMO O artigo analisa quatro cartas escritas por Leonarda da Silva Velho, dama da Imperatriz Teresa Cristina, para sua filha, Mariana Velho de Avellar, Viscondessa de Ubá, e uma carta escrita para o seu filho, José Maria Velho da Silva. As missivas abrangem o recorte temporal de 1864 a 1869. Tomadas como arquivos pessoais, as escritas da intimidade são examinadas naquilo que podem depreender de aspectos do cotidiano feminino do século XIX, no que tange à gestão da casa, à educação dos filhos e das filhas, às alusões ao casamento, às relações familiares com os núcleos parentais, à abordagem da escravização doméstica, entre outros aspectos observáveis dos assuntos tratados entre os missivistas.
BIOGRAFIA DE ALBA DE MESQUITA FROTA E A EDUCAÇÃO DAS MOÇAS NO CURSO NORMAL NO INÍCIO DO SÉCULO XX
Authors: Fialho Lia Machado Fiuza , Stascxak Francinalda Machado , Bravo Susana Gavilanes , Gabriel Gilvete de Lima
Published: February 2024

RESUMO O artigo trata da história da educação feminina cearense com ênfase na formação para o magistério no curso normal na cidade de Fortaleza. Objetivou compreender a formação para o magistério no início do século XX no Colégio da Imaculada Conceição com base na biografia da educadora Alba de Mesquita Frota. Constatou que a biografada usufruiu boa formação no Colégio da Imaculada Conceição, privilégio concedido às moças da elite econômica. Suas práticas renderam-lhe certa proeminência, pois a mulher foi homenageada com a denominação da primeira pré-escola cearense.
A TRAJETÓRIA DA PROFESSORA MARIA LUIZA RODRIGUES NA RESERVA INDÍGENA DE DOURADOS, MT (1951–1961)
Authors: Peres Cristiane Pereira , Furtado Alessandra Cristina
Published: February 2024

RESUMO Este artigo descreve a trajetória da professora Maria Luiza Rodrigues no exercício da docência na Reserva Indígena de Dourados, com ênfase no seu papel como professora e na sua atuação com as etnias Kaiowá, Guarani e Terena, no período de 1951 a 1961. Para o desenvolvimento dessa descrição, recorreu-se principalmente aos documentos provenientes do arquivo pessoal da professora, como a cartilha Kuatiañe’e moñe’?kuaarã: o papel que fala, entre outros.
A pilot observational study to identify reference values for the 6-minute walk test in Brazilian people with hypertension
Authors: Lima Afonso , Prado João Paulo , Aquino Tarcísio Nema de , Borges Juliana Bassalobre Carvalho , Vidigal Fernanda de Carvalho , Galdino Giovane
Published: February 2024

Abstract Introduction Systemic arterial hypertension (SAH) is responsible for 9.5 million deaths in the global popu-lation. Lifestyle factors, including physical inactivity, are important modifiable risk factors in the development of SAH. Thus, physical exercise has been shown to be effective to control SAH and before the prescription, the six-minute walk test (6-MWT) has been commonly used to assess the physical capacity. Objective To propose reference values for the 6-MWT test in Brazilian people with SAH. Methods A cross-sectional observational study was conducted with 302 hypertensive subjects (62.61 + 10.93 years) admitted to a cardiac rehabilitation program. Participants were divided into different age quartiles and submitted to 6-MWT. The walking distance data was compared between the quartiles and adjusted by mul-tiple linear regression analysis. Results The hypertensive subjects walked 388.07 + 115.03 m during the 6-MWT. No significant difference between the genders was found. However, when the age quartiles were compared, for the 46–59 age group, the women walked less than the men. Intra-group comparisons showed that the distance walked in the 6-MWT decreased with the increase in age, in both men and women. Conclusion The present study provides reference values for the 6-MWT, both for Brazilian men and women of different age groups. This data may be an important parameter for future clinical studies, prevention strategies, and clinical intervention.
Soaking time in sulfuric acid to overcome sweet potato seeds dormancy
Authors: Zeist André Ricardo , Carbonera Maiara Z , Rech Caroline , Oliveira Guilherme José A , Toroco Bruno R , Silva Júnior André D , Garcia Neto Jair , Leal Murilo Henrique S
Published: February 2024

ABSTRACT To increase genetic variability, sweet potato needs to be sexually propagated in breeding programs. However, its seeds have a hard and thick integument, requiring some dormancy breaking method. Chemical treatment of seeds allows greater efficiency of the relationship between seeds obtained in crosses and those that germinate, providing genotypes to be tested for their potential, aiming at developing a new commercial cultivar. Thus, the objective of this study was to identify the effects of immersion times of seeds in sulfuric acid (98%) on the germination and initial growth of sweet potato seedlings. The seeds were immersed for five different times: 0 (control), 20, 40, 60, and 80 min. The experiment was carried out in a completely randomized design with ten repetitions consisting of 25 seeds each experimental plot. The germination percentage, germination speed index (GSI), dry mass of whole seedlings, and length of the largest root and shoot of the seedlings were evaluated. The germination percentage and GSI increased with immersion time until 53.30 min, with maximum estimated values of 85.39 and 25.10%, respectively. For the parameters dry mass of whole seedlings, length of the largest root, and shoot length, increases were observed up to 55.00, 37.63, and 44.44 min, respectively. In conclusion, the immersion of sweet potato seeds in sulfuric acid (98%) for 53 min is ideal for breaking dormancy and providing better conditions for the initial development of seedlings.
EFFECT OF GEOMETRICAL PARAMETERS ON THE THERMAL-HYDRAULIC PERFORMANCE OF INTERNAL HELICALLY RIBBED TUBES
Authors: Du Yi , Ou Guo-Hui , Jin Pu-Hang , Zhao Chuang-Yao , Ji Wen-Tao , Zhang Ding-Cai , Tao Wen-Quan
Published: February 2024

In this paper, single-phase heat transfer characteristics of water inside internal enhanced tubes were investigated. Refrigerants are boiling or condensing outside the tube. The experimental tubes have internal helical rib heights of 0.25-0.36 mm, helix angles of 40-60°, rib base thicknesses of 0.40-0.79 mm, rib tip thicknesses of 0.078-0.283 mm, and Ns (starts number per circle) of 40-50. It shows that the heat transfer enhanced ratios usually range from 2.3 to 3.64. The friction factors relative to the smooth tube are about 1.8 to 3.3 times higher. Analyzing the effect of rib geometry on flow and heat transfer, it was found that the higher the height of the internal rib, the better the enhancement of convective heat transfer in the tube. Also, the greater the thickness of the rib tip and base, the more detrimental to the friction factor in the tube. There was no noticeable influence on the heat transfer performance as the helix angle increased from 45° to 50°. For the increase of Ns, it appears that 45 ribs per circle is the best value in the present study when considering the increase in pressure loss. The thermal-hydraulic performance of 11 tubes was also evaluated. It shows that Tube-1 had the best performance in the condensing tubes and Tube-7 had the best performance in the boiling tubes.
Developing and Implementing an IoT Managed by Electronic Devices for Covid Patient Monitoring via a Secured Communication System
Authors: ABDULAAL Alaa , SHAH A F M Shahen , KARABULUT Muhammet Ali
Published: February 2024

End of 2019 had seen global spread of the deadly coronavirus (SARS-CoV-2) pandemic, which kills people, puts a large portion of the world in danger, and poses a serious threat to all of the world's nations. Leading medical professionals are working extremely hard to identify the virus, develop treatments for it, and create the vaccines that are required to stop and limit its spread. This study intends to develop a low-cost electronic health system to observe patients with covid infections and lessen the work required of clinicians. An enhanced approach for remote health monitoring in hospitals or detention facilities is offered by the internet of things (IoT). The IoT keeps and displays the patient's medical data via a web browser or through specialized apps that offer remote treatment once the sensors collect it. When a patient is in danger, the system offers immediate action to send alarms by email and SMS and to rapidly provide drugs to the patient. Doctors will be updated on each patient's condition thanks to this message.
Designing Hollow Brick Waste Based Alkali Activated Composites by Taguchi Method
Authors: KURTAY YILDIZ Mine
Published: February 2024

The use of waste materials in alkali-activated material technologies is important in terms of sustainability. The production of alkali-activated composites (AAC) with hollow brick waste (HBW) as a binder may contribute to solving existing environmental problems related to the depletion of natural resources. In this study, mortars were produced using different concentrations (6 M, 8 M, and 10 M NaOH) and Alkaline Activator/Powder Material (AA/PM) ratios of 0.30, 0.35, and 0.40 through the alkali activation method. The hollow brick waste (HBW) powder was obtained by grinding inactive bricks in brick factories. The prepared mortars were cured separately for each mixture at 90°C for 24 hours. Compressive and flexural strength tests were performed on the prepared perforated hollow brick waste-based composites. The Taguchi method was used to determine the optimum mixing ratios by conducting compressive and flexural strength tests on the produced AAC. To optimize the parameters determined using the Taguchi method, the best mixing ratios were determined using the L9 (3^2) orthogonal index. The compressive and flexural strengths of the mixtures were evaluated considering the signal to noise ratio "larger the better" and the highest compressive strength value was 63.669 MPa and the highest flexural strength value was 6.629 MPa according to the optimum values. According to the obtained results, it was determined that the AAC produced at 6 M NaOH and 0.30 AA/PM ratio exhibited the highest compressive and flexural strength values.
Investigation of the Effects of Cutting Fluid Application with Minimum Quantity Lubrication (MQL) Method on the Machinability of Pure Titanium
Authors: KARTAL Yunus , ER Ali Osman
Published: February 2024

Machining is one of the widely used methods in today's technology and there are many parameters that affect the machinability of the produced product. In the machining process, the machinability of the product depends on parameters such as feed rate, depth of cut, cutting speed and cutting fluid. The use of cutting fluid during the process has advantages such as improving surface quality, but also disadvantages such as increased cost and environmental damage. Due to these disadvantages of cutting fluid in manufacturing processes, alternative methods have been developed. The method called minimum quantity lubrication (MQL) not only reduces cost but also improves machinability. In this study, the machinability of titanium turning was evaluated with main cutting force, surface roughness and temperature measured in the primary cutting zone data. MQL method was used in the study and Taguchi L9 model was applied. The results were compared between dry cutting and MQL atmospheres. The reliability of the data and the degree of influence of the parameters were analyzed by ANOVA. In this study, the shear force data obtained in the dry shear atmosphere were higher than the data obtained in the MQL method. In addition, the surface roughness values obtained in dry cutting atmosphere were also relatively high. The optimum cutting speed, feed rate and depth of cut values for the process were determined as 60 m/min, 0.05 mm/rev and 0.5 mm, respectively.
Identifying Critical Success Factors of Public Private Partnership Projects in Türkiye
Authors: DURNA Elif , ÖZORHON Beliz , CAGLAYAN Semih
Published: February 2024

Public private partnerships (PPPs) have become increasingly common as a result of states' shifting roles in infrastructure services from service providers and operators to policymakers and regulators. PPPs have been established as a prominent technique of public service procurement in both developed and developing countries. PPPs give the parties the opportunity to split the costs and risks of providing a public service or building a public infrastructure. Successful project management is crucial, especially in light of PPP projects' size and complexity. This study investigates the critical success factors (CSFs) of PPP investments in developing countries. In this regard, 23 CSFs were selected based on a thorough literature review, and a questionnaire survey was run to examine the impact of those factors on PPP performance. The information is gathered from 82 different companies in Türkiye that represent both the public and private sectors. The statistical analysis results show that favorable legal framework, detailed and clear project identification, and extensive cost-benefit assessment are the most significant drivers of success. Additionally, factor analysis is used on the data to investigate and identify underlying correlations between the factors, as well as to categorize them into fewer, more focused, and more thorough factors. The results of factor analysis suggest five dimensions; namely project finance, project management, operational factors, procurement, and organizational factors. The study's findings are anticipated to benefit both the public sector in its focus on legal concerns to permit better operation and the contractors in its examination of their capacity to manage big projects more effectively.
Development of NGR-GelMA Hydrogels for PC3 Prostate Cancer Cells
Authors: YARALI ÇEVİK Ziyşan Buse , ZEYBEKOĞLU Meryem , KARAMAN Ozan
Published: February 2024

Prostate cancer is one of the most common cancer for men. Current therapies such as chemotherapy or radiotherapy non-spesifically affect cancerous cells. Current therapies need more targeted delivery approaches such as peptide. Asn-Gly-Arg (NGR) is a tool for cancer targeting therapy. To mimic more natural cancer microenvironment, peptide treatment approaches are examined in 3 Dimensional (D) hydrogels. GelMA is one of the hydrogels that permits to construct 3D microenvironment of PC3 prostate cancer cells. The goal of the study was to evaluate characteristic of GelMA to model prostate cancer environment and to determine the effects of NGR peptides for PC3 line. pH values of different concentrations NGR (1 µM, 10 µM and 100 µM)-GelMA were measured. To analyze biodegradation capacity of different concentrations NGR (1 µM, 10 µM and 100 µM)-GelMA, weigth measurements were performed. Live and Dead analysis was performed on days 1, 4, and 7. The findings revealed that GelMA hydrogels created a relatively stable and neutral pH, making them potentially valuable for drug delivery systems. Furthermore, the NGR-GelMA hydrogels incorporated exhibited the capacity to absorb liquids, resulting in an increase in weight. Notably, these hydrogels allowed for the observation of the dynamic 3D microenvironment of prostate cancer, which was influenced by the concentration of the targeted drug in the GelMA matrix. This suggests promising implications for developing targeted therapies for prostate cancer using GelMA-based drug delivery systems. As a conclusion, GelMA and NGR-GelMA hyrdogels may be useful platform for further studies to progress on prostate cancer treatment.
Let’s Talk About Hair and Art
Authors: Moore Nicole
Published: February 2024

The objective of this paper is to critically reflect upon a cultural text in the form of a piece of mixed media abstract realism artwork titled Hair Power, made in 2020. This piece was inspired and motivated by my involvement with a World Afro Day event held on 15 September 2020. The paper draws on my personal, political, cultural, and historical rationale for making the artwork, and includes relevant background information and wider influences. I discuss the artistic process — composition, colour scheme, themes, materials— and how and why I made the painting the way I did. The paper also aims to show the intertextuality of visual art and community activism and the importance of art as a form of resistance against Westernised beauty standards and of the power of images in their ability to transport the audience in which they are intended. This paper will also seek to understand the connectivity between artists and the community, and the importance of representation within the visual arts. It will draw on my cultural heritage and African and Caribbean diasporic cultural connections. It will further seek to connect art with literary projects, working together to challenge those ideologies that do not work for Black people who choose to wear their afro hair in its natural state, so that pride is more important than hiding or changing afro hair to fit into society’s ‘norms’. Hair Power is a piece of personal and political abstract realism art that was made as a reminder that afro hair in its natural state is to be celebrated. Hair Power was also one of two pieces of artwork integrated as a symbolic gesture into my Birkbeck College “Race Law and Literature” assignment in April 2021. The assignment involved writing a creative nonfiction narrative of a historical event using the theme of everyday racism in the British education system. Hair Power marks my decision to make more political art.
Corolla micromorphology in 12 plant species with different pollination systems
Authors: Vélez-Esperilla Fernando , Fondón-Aguilar Ángela , Rodríguez-Riaño Tomás , Ortega-Olivencia Ana
Published: February 2024

Background: Floral microstructure, with multiple functions, is very important in pollination biology.
Questions: Are the expected general characteristics of corolla micromorphology fulfilled in the selected species with different pollination systems?
Studied species: Agave americana, Arbutus unedo, Aristolochia paucinervis, Cestrum nocturnum, Cytinus hypocistis subsp. macranthus, C. ruber, Dianthus lusitanus, Grevillea robusta, Musa x paradisiaca, Nicotiana glauca, Stellaria media and Teucrium fruticans.
Study site and dates: Southern Spain, 2017-2019.
Methods: Floral micromorphological characters were studied by light and scanning electron microscopy and analyzed using different statistical tests.
Results: The adaxial side of the corolla lobes in melittophilous, myrmecophilous, psychophilous and sapromyophilous species showed papillose cells, and the same was true of the sphingophilous species Cestrum nocturnum and hummingbird-pollinated Nicotiana glauca. In contrast, tabular cells were observed in the perching-pollinator ornithophilous species Grevillea robusta, the two studied chiropterophilous species, and autogamous Stellaria media. In addition, corolla mesophyll was thicker in chiropterophilous species. Furthermore, differences were detected in cell turgidity (in protogynous Aristolochia paucinervis) and in mesophyll thickness between male and female flowers (Cytinus).
Conclusions: Papillose cells were present in corollas in physical contact with pollinators, as expected, but also appeared in corollas of some other species without such contact. We recommend that studies of dichogamous and unisexual species include comparisons of corolla micromorphology between sexual states, as differences may exist in cell turgidity or mesophyll thickness. We also caution against the widespread view that certain types of pollinators do not mechanically interact with the epidermal surface of the corolla.
Finding purpose in life and shaking up one’s routine might help to navigate the ups and down
Authors: Smita Jain
Published: February 2024

Most individuals want to feel like they’re living for something bigger than themselves. In or out of our consciousness. While the idea is appealing, the reality may be more difficult to achieve. The assumptions about life’s meaning may stem from a lack of introspection into one’s own purpose. These hardwired beliefs about the world often originate in our families and the places we call home. Having an effect on the world, no matter how big or little, is what gives people a feeling of purpose in life, rather than a predetermined destination. One’s purpose is the driving force behind their behavior. Continually and throughout the years. Purpose provides stability and direction even in the face of failures and a seemingly chaotic environment. The subject of life’s purpose may seem abstract, but it’s worth pondering. If people want to be happy and successful in every aspect of life, finding purpose is the key.
Quality control assessment for microbial genomes: GalaxyTrakr MicroRunQC workflow v6
Authors: Hope Bias Candace , Timme Ruth , Shrestha Yesha , Pfefer Tina , Morin Paul , Strain Errol
Published: February 2024

PURPOSE: Step-by-step instructions for checking WGS sequence quality for bacterial pathogens. The MicroRunQC workflow, implemented in a custom Galaxy instance, will produce quality assessments for raw reads (Illumina paired-end fastq files) and draft de novo assemblies, along with reporting the sequence type for each isolate. This workflow will work on most microbial pathogens, so we advise laboratories to upload their entire MiSeq/NextSeq run through this workflow. SCOPE: This protocol covers the following tasks: 1. Quick access to GenomeTrakr sequence quality thresholds by organism 2. Create a GalaxyTrakr account 3. Set up an account in GalaxyTrakr 4. Create a new history/workspace 5. Upload data 6. Execute the MicroRunQC workflow 7. Interpret the results - check against GenomeTrakr QC thresholds Version updates: V6: Minor edits, including section reorganization and addition of clarifying notes V5: New column in the output table to capture additional mlst data fields when available in Sequence Type definition files (not available for all species) V4: MicroRunQC updated to V1.1 Includes updates to skeza and mlst methods, as well as adjusted assembly QC thresholds for E.coli. Added Enterobacter QC thresholds to threshold table. V3: updated with Cronobacter thresholds
Osmia lignaria laboratory rearing protocol v1
Authors: F. Williams Mary-Kate
Published: February 2024

Our protocol was designed to rear Osmia lignaria Say (Hymenoptera: Megachilidae) from immature stages to adult emergence following their natural phenology in northern Utah. Many aspects of the bee's biology can be analyzed using this protocol, including ecology, genetics, microbiome, pathology, toxicology, and pollinator management. An individual bee can be observed as a response to a treatment group, and its development and survival can be measured. The interaction of various stressors can help define synergistic, antagonistic, and additive effects, including acute, sublethal, and chronic treatment responses. Osmia lignaria was used as a model to rear solitary bees in a laboratory setting.
SOP for LBP ELISA after DSS-induced injury v1
Authors: G Tansey Malu
Published: February 2024

SOP for LBP ELISA after DSS-induced injury
Joint Action of Selective Herbicides used in Paddy Field on Control of Lemna minor L.
Authors: Chuah T. S. , Lim S.W. , Dilipkumar M.
Published: February 2024

To minimise herbicide inputs, reduce environmental burdens, and delay the evolution of herbicide resistance, it is of the utmost significance to study the interaction between herbicides. This may be accomplished by selecting the optimal combination, which, through synergy, delivers more cost-effective weed control than a single herbicide. Under laboratory conditions, interactions between binary mixtures of bensulfuron, propanil, 2,4-D, or bentazon on chlorophyll reduction of Lemna minor were investigated using the Additive Dose Model. Mixtures of propanil/2,4-D resulted in low antagonism whereas strong antagonism was evident in bensulfuron-methyl/propanil. Combinations of bensulfuron/bentazon and bensulfuron/2,4-D led to moderate antagonism. By contrast, propanil in combination with bentazon demonstrated a modest degree of synergism. The findings of this study could provide good guideline and insights when mixing two herbicides for weed control in rice fields and other aquatic environment.