bluuebunny/crossref_metadata_2025 huggingface dataset:
Effectiveness of Bdellovibrio bacteriovorus to contain Escherichia coli on milk and temperature impact on predation dynamics
Authors: Pieralisi Silvia , Canonico Cristina , Di Lullo Stefania , Angelico Gabriele , Cardinali Gianluigi , Rocchegiani Elena , Maiolatesi Diego , Ottaviani Donatella
Published: June 2023

We tested the predation of B. bacteriovorus against Escherichia coli in milk samples in three different experiments. In Experiment 1, the growth and predatory activity of B. bacteriovorus against E. coli in milk stored at 4°C were evaluated. In Experiment 2, the predatory activity of B. bacteriovorus against E. coli in the milk matrix was compared to the optimal one in the medium of choice. In Experiment 3, the influence of the native milk microbial community on the predation of B. bacteriovorus against E. coli experimentally added or indigenous grown at 4°C was tested. The predator increased at 4°C by about 1 Log in the first 48 hours and caused E. coli decrease by about 2 Log after 24 hours. The predator at 30°C reduced E. coli faster (3 Log after 6 hours) than at 4°C (2 Log after 24 hours). B. bacteriovorus at 30°C preyed on E. coli more in the nutrient broth than in the milk, with the most significant difference by about 4 Log after 48 hours. In raw milk contaminated only by the predator, it increased by about 1 Log after 48 hours at 4°C, suggesting that it preyed on indigenous microorganisms. B. bacteriovorus could find application in raw milk used as food or raw material during storage at 4°C to reduce the microbial load of spoilage and Shigatoxin-producing E. coli (STEC) strains of E. coli and therefore increase its shelf-life and healthiness.
Boundary line method to update critical soil phosphorus and potassium levels in banana plantations in Santa Catarina
Authors: Guimarães Gelton Geraldo Fernandes , Deus José Aridiano Lima de , Lima Neto Antonio João de
Published: June 2023

Abstract The rational use of correctives and fertilizers in banana orchards depends on reliable standards for interpreting soil fertility. The study aimed to establish critical levels (CL) for phosphorus (P) and potassium (K) in the soil of banana plantations in Santa Catarina, using the Boundary Line (BL) method. A database with information of soil chemical analysis and fruit yield obtained from orchards in producing regions was used. Scatter plots were obtained relating P and K concentration in the soil extracted by the Mehlich-1 method with the relative productivity of fruits and then the pairs of data in the upper border were selected and used to establish a mathematical model. The model was derived and obtained the concentrations of P and K in the soil that provided the maximum physical productivity (100 %) and maximum economic productivity (90% of the maximum production), corresponding to the CL in the soil. It is proposed that the update of critical levels of P and K for banana cultivation in Santa Catarina to be 85 and 229 mg/dm3, respectively. The banana grower will be able to suppress the P and K doses in a punctual and temporary way in areas of built fertility with the proper monitoring of productivity, soil and leaf analysis.
O regime de expectativas e a política salarial: indexação x prefixação
Authors: MATTOS CÉSAR COSTA ALVES DE
Published: June 2023

RESUMO Este artigo pretende comparar políticas salariais com base na indexação convencional de esquemas de inflação passados versus prefixação. A estrutura das respostas dos agentes econômicos à política salarial será significativamente diferente entre essas duas abordagens, e será crucial determinar as possibilidades de sucesso dessa estratégia como anti-inflacionária. Caso contrário, o foco principal desse trabalho será o esquema de prefixação de salários e sua relação com as expectativas dos agentes econômicos. A questão crucial a ser analisada será a credibilidade do governo em relação aos trabalhadores e seus sindicatos em geral. Em alguns contextos, a falta de credibilidade do governo levará a política salarial a ser quase irrelevante na fixação salarial efetiva da economia. A principal conclusão será que a prefixação será uma alternativa arriscada, mas pode ser a maneira mais atraente de combater a inflação em países com situações inflacionárias crônicas como o Brasil.
(Im)propriedades da moeda
Authors: COSTA FERNANDO NOGUEIRA DA
Published: June 2023

RESUMO Keynes assumiu a inelasticidade da oferta (ou inelasticidade da produção) com relação à demanda como um atributo necessário do dinheiro. Mas a teoria pós-keynesiana da moeda sugere que a função de oferta de moeda deve ser vista como horizontal, a um nível de taxas de juros estabelecido pelo banco central na definição do preço de oferta das reservas. As taxas de juros, e não a oferta de moeda, são a verdadeira variável de controle exógena do banco central. A oferta monetária é endógena, orientada para o crédito e determinada pela demanda. Este artigo examina porque a teoria posterior supera a teoria do dinheiro de Keynes.
Privatização de estradas no Brasil: comentário sobre a viabilidade financeira
Authors: RUIZ JORGE ERNESTO SÁNCHEZ
Published: June 2023

RESUMO Neste artigo, o autor discute questões financeiras consideradas questões-chave e que devem ser cuidadosamente analisadas em projetos de privatização de rodovias na realidade brasileira. Retornos esperados, tarifas comparadas, custos, demanda e estrutura de capital são o núcleo deste trabalho. O autor realiza um exercício de simulação com base em um dos casos mais lembrados como candidatos à privatização no Estado de São Paulo: o sistema que compreende as rodovias Anchieta e Imigrantes, que fazem uma conexão entre a cidade de São Paulo e a cidade. de Santos, no litoral. A conclusão do autor indica que é um empreendimento viável, desde que algumas restrições / inovações sejam incluídas em seu projeto.
Valor e moeda em Marx: crítica da crítica
Authors: MOLLO MARIA DE LOURDES ROLLEMBERG
Published: June 2023

RESUMO Este artigo analisa as afirmações críticas de autores franceses como Carlo Benetti e Jean Cartelier sobre a teoria marxista do valor e do dinheiro. Consiste em uma pesquisa crítica dos pontos de vista apresentados para negar o caráter de mercadoria da força de trabalho e da moeda, bem como a proposta positiva apresentada por eles.
Notas a respeito da Escola Francesa da Regulação
Authors: NASCIMENTO ELIMAR PINHEIRO DO
Published: June 2023

RESUMO Este artigo analisa as contribuições da Escola de Regulação. A partir das obras seminais de Michel Aglietta, o artigo discute as inovações dessa abordagem e as respostas que esta escola dá para os seguintes tópicos: a passagem do crescimento à estagnação; a diferença de prosperidade em diferentes países no mesmo momento histórico; as características em constante mudança da crise. Os próprios conceitos de regulação e crise são analisados e algumas críticas também são feitas.
The scope for industrial policy in a free trade environment
Authors: ARAUJO JR. JOSÉ TAVARES DE
Published: June 2023

ABSTRACT The article discusses the contemporary dilemma of industrial policy, which consists of defining national growth strategies consistent with the dynamics of a globalized economy. The argument consists of three parts. The first suggests that the concept of firm proposed by Coase in 1937 is a fundamental instrument for analyzing the changes that occurred in the 1980s in international competition standards. The second describes the domestic dimension of the industrial policy dilemma, showing the macroeconomic restrictions and the role of the institutions that regulate economic power. The third considers the international dimension, highlighting the importance of GATT as a forum for negotiating conflicts between domestic policies and international interests.
Intra-articular stabilization of a dog stifle with polyester thread: an ex vivo evaluation
Authors: Reinstein Rainer da Silva , Pozzobon Franciéli Mallmann , Müller Daniel Curvello de Mendonça
Published: June 2023

ABSTRACT: The incidence of cranial cruciate ligament rupture (CCLR) in dogs is high, which is considered the main arthropathy in the species. Once diagnosed, surgical stabilization is recommended and different treatments are categorized as intracapsular, extracapsular, and osteotomies. There is still no consensus regarding the most optimal method of stabilization, and some studies have attempted to create or improve existing techniques, making them more effective. This study presented an intra-articular stifle stabilization technique using a synthetic polyester implant using 32 anatomical specimens from canine cadavers, which were separated by weight into two groups. The drawer movement was analyzed at three timepoints: intact cranial cruciate ligament (CCL), dissected ligament, and after surgical stabilization using the proposed technique. Results showed a mean cranial displacement of the tibia relative to the femur of 0.61 ± 0.08 millimeters before dissection (mm), 2.61 ± 0.08 mm after dissection, and 0.68 ± 0.08 mm after surgical stabilization (P < 0.01). In conclusion, the intra-articular stabilization technique with polyester thread was effective in stabilizing ex vivo dog stifles after CCL dissection at the immediate postoperative period.
Amitraz poisoning in a cat
Authors: Santin Thaís Tosetto , Veronezi Tayná Mayer , Azevedo André Fernandes de , Costa Fernanda Vieira Amorim da
Published: June 2023

ABSTRACT: A 4-month-old male Himalayan cat presented with clinical signs of acute lethargy and motor incoordination after being treated with amitraz for parasite control. On clinical examination, the patient was lethargic and ataxic with severe pulicosis, hypothermia, pale mucous membranes, bradycardia, weak femoral pulses, hyperglycemia, and bilateral mydriasis. Blood tests revealed non-regenerative hypochromic microcytic anemia. Serum alanine levels were elevated tenfold. The patient received supportive treatment with atipamezole (an α2-adrenergic antagonist) at a dose of 0.1 mg/kg intramuscularly. After 24 h of hospitalization and constant monitoring, the patient recovered and was discharged. The published literature showed that the active ingredient amitraz is effective in the treatment of some parasitic diseases in cats, such as scabies and demodicosis; therefore, it is still used for this purpose. Given the small therapeutic margin of this insecticide, veterinarians should caution owners about its potential toxicity. This report emphasized the significance of amitraz intoxication in feline species and the success of the treatment, which should be initiated in the first hour after intoxication.
Telenursing in mental health: effect on anxiety symptoms and alcohol consumption during the COVID-19 pandemic
Authors: Vargas Divane de , Ramírez Erika Gisseth León , Pereira Caroline Figueira , Oliveira Sheila Ramos de
Published: June 2023

Objective: to investigate the effect of a remote intervention on anxiety symptoms and alcohol use in users of the Primary Health Care service. Method: a quasi-experimental study conducted with 1,270 participants who answered the Alcohol Use Disorders Identification Test and the State-Trait Anxiety Inventory-6. Of these, 1,033 interviewees scored for moderate/severe anxiety symptoms (STAI-6 > 3) and moderate/severe risk alcohol use (AUDIT-C > 3), and received the interventions via telephone calls with follow-up periods lasting seven and 180 days. For data analysis, a mixed-effects regression model was used. Results: the effect of the intervention performed was positive in reducing anxiety symptoms between T0 and T1 (µ=1.6, p<0.001) and in reducing the alcohol use pattern between T1 and T3 (µ=1.57, p<0.001) Conclusion: the follow-up results suggest a positive effect of the intervention in reducing anxiety and the alcohol use pattern, which tends to be maintained over time. There is diverse evidence that the intervention proposed can be an alternative for preventive care in mental health, in situations where accessibility of the user or the professional is compromised.
Relación entre las competencias profesionales de los enfermeros en emergencias y el producto del cuidado de enfermería
Authors: Jesus Jucinei Araújo de , Balsanelli Alexandre Pazetto
Published: June 2023

Objetivo: relacionar las competencias profesionales de los enfermeros de urgencia y emergencia con el producto del cuidado de enfermería. Método: estudio transversal, realizado en las unidades de urgencia y emergencia de dos hospitales públicos. Participaron 91 enfermeros, 3 residentes de enfermería, 4 coordinadores y 1 gestor. Se utilizaron dos instrumentos validados: 1) Escala de Competencia de las Acciones de los Enfermeros en Emergencias y 2) Evaluación del Producto del Cuidado de Enfermería. Se utilizaron factores y dominios, respectivamente. Se aplicaron estadística descriptiva, alfa de Cronbach, pruebas de Wilcoxon y correlación de Spearman (p<0,05). Resultados: para las competencias profesionales se registraron valores más altos en la autoevaluación (p<0,001). En las 1.410 evaluaciones del producto del cuidado de enfermería, prevaleció el puntaje “bueno” (n=1034 - 73,33%). El dominio “dimensionamiento del personal de enfermería” se relacionó con los factores “práctica profesional” r=0,52719, “relaciones en el trabajo” r=0,54319, “desafío positivo” r=0,51199, “acción dirigida” r=0,43229, “conducta constructiva” r=0,25601 y “adaptación al cambio” r=0,22095; el dominio “seguimiento y transferencia del cuidado”, con “práctica profesional” r=0,47244, “relaciones en el trabajo” r=0,46993, “desafío positivo” r=0,41660 y “adaptación al cambio” r=0,31905 y el dominio “satisfacción de las necesidades asistenciales”, con “práctica profesional” r=0,32933, “relaciones en el trabajo” r=0,31168, “desafío positivo” r=0,29845 y “adaptación al cambio” r=0,28817. Conclusión: hay relación entre las competencias profesionales y los dominios del producto del cuidado de enfermería.
Relação das competências profissionais do enfermeiro em emergência com o produto do cuidar em enfermagem
Authors: Jesus Jucinei Araújo de , Balsanelli Alexandre Pazetto
Published: June 2023

Objetivo: relacionar as competências profissionais do enfermeiro em urgência e emergência com o produto do cuidar em enfermagem. Método: estudo transversal, realizado nas unidades de urgência e emergência de dois hospitais públicos. Participaram 91 enfermeiros, 3 residentes em enfermagem, 4 coordenadores e 1 gerente. Utilizaram-se dois instrumentos validados: 1) Escala de Competências das Ações dos Enfermeiros em Emergências e 2) Avaliação do Produto do Cuidar em Enfermagem. Utilizaram-se fatores e domínios, respectivamente. Aplicaram-se estatística descritiva, alfa de Cronbach, testes Wilcoxon e correlação de Spearman (p<0,05). Resultados: em competências profissionais, verificaram-se maiores valores para autoavaliação (p<0,001). Nas 1.410 avaliações do produto do cuidar em enfermagem, predominou o escore “bom” (n=1034 - 73,33%). O domínio “dimensionamento de pessoal de enfermagem” relacionou-se com os fatores “prática profissional” r=0,52719, “relações no trabalho” r=0,54319, “desafio positivo” r=0,51199, “ação direcionada” r=0,43229, “conduta construtiva” r=0,25601 e “adaptação à mudança” r=0,22095; o domínio “acompanhamento e transferência do cuidado”, com “prática profissional” r=0,47244, “relações no trabalho” r=0,46993, “desafio positivo” r=0,41660 e “adaptação à mudança” r=0,31905 e o domínio “atendimento das necessidades assistenciais”, com “prática profissional” r=0,32933, “relações no trabalho” r=0,31168, “desafio positivo” r=0,29845 e “adaptação à mudança” r=0,28817. Conclusão: existe relação entre as competências profissionais e os domínios do produto do cuidar em enfermagem.
Metodologías utilizadas por los profesionales de enfermería en la producción de videos educativos: revisión integradora
Authors: Barbosa Rafael Fernando Mendes , Gonzaga Anne Ketlley Lacerda de Lima , Jardim Fabrine Aguilar , Mendes Karina Dal Sasso , Sawada Namie Okino
Published: June 2023

Objetivo: evaluar la evidencia científica sobre las metodologías que utilizan los profesionales de enfermería para producir videos educativos. Método: revisión integradora. La búsqueda de estudios primarios se realizó en las bases de datos CINAHL, LILACS y MEDLINE/PubMed. La muestra estuvo compuesta por 19 investigaciones. La calidad metodológica de los estudios incluidos se evaluó usando una herramienta propuesta por la Johns Hopkins Nursing Evidence-Based Practice y los resultados se analizaron de forma descriptiva. Resultados: las etapas metodológicas utilizadas para el proceso de elaboración y realización de los videos incluyen preproducción, producción y postproducción. Los estudios revelan que, en general, los autores aplicaron y/o describieron correctamente las etapas, además contemplaban el método adoptado. Sin embargo, en 14 estudios no se utilizó un marco metodológico para garantizar el rigor en su realización y en 11 presentaron validación por parte del público objetivo. Conclusión: la síntesis de conocimientos mostró que aún hay necesidad de atención en la construcción de videos educativos en cuanto al marco metodológico y la validación por la población objetivo. La ejecución rigurosa de los procedimientos metodológicos necesarios para el desarrollo de videos educativos, para fomentar la adquisición de habilidades esenciales para la creación de material didáctico de alta calidad.
Changes in flax yield and quality in response to various mineral nutrition
Authors: Trukhachev V. I. , Belopukhov S. L. , Dmitrevskaia I. I. , Baibekov R. F. , Seregina I.I.
Published: June 2023

Abstract The researchers of Russian State Agrarian University, Moscow Timiryazev Agricultural Academy in 2013-2016 conducted a long-term stationary experiment to study chemical and toxicological properties of fiber flax, Voskhod variety, growing on sod-podzolic soil in the soil and climate of the Moscow region. Test plots were selected with following crop rotation options: without fertilizers, without liming; without fertilizers, with liming; N100P150K120 (kg a.i./ha), without liming; N100P150K120, with liming; N100P150K120 + manure 20 t/ha, without liming; N100P150K120 + manure 20 t/ha, with liming. The agro-climatic conditions of the growing seasons during the research years did not have a negative impact on the growth and development of fiber flax, the hydro-thermal index was 1.1 in 2013, -1.05 in 2014, 1.5 in 2015, and 1.5 in 2016. The maintained crop rotation and the introduction of a full range of mineral and organic fertilizers has been found to contribute to high yields of flax in terms of fiber (18.5-18.9 hwt/ha) and seeds (7.9-8.3 hwt/ha). The seeds contain 16.9-19.5% protein and 33.5-39.4% lipids. The yield of flaxseed oil from seeds ranged from 19.5-35.7% on average for different variants of the experiment. The peroxide number index was 2.5-1.5 mg-eq O2/kg, the acid number index was 1.1-1.9 mg KOH/g, which corresponds to obtaining high-quality linseed oil in compliance with quality standards for all variants of the experiment.
Volatile compounds from soybeans under multiple on herbivores infestations attract the predatory mite Neoseiulus californicus (Acari: Phytoseiidae)
Authors: Rocha D. D. D. , Santos B. L. F. , Melo J. O. F. , Nascimento P. T. , Fadini M. A. M.
Published: June 2023

Abstract Plant-induced resistance can be an important component of soybean mites biological control programs. This work evaluates the preference of predatory mite Neoseiulus californicus (Acari: Phytoseiidae) to soybean plants under single and multiple herbivory conditions by two-spotted spider mite Tetranychus urticae (Acari: Tetranychidae), and velvetbean caterpillar Anticarsia gemmatalis (Lepidoptera: Noctuidae). Using a Y olfactometer, the following scenarios were evaluated: soybean with no infestation and soybean infested with A. gemmatalis; soybean infested with T. urticae and A. gemmatalis, and soybean infested with T. urticae and with both T. urticae and A. gemmatalis. Volatile compounds released by plants were analyzed and identified by a Trace GC Ultra gas chromatograph coupled to a mass spectrometer with a solid phase micro-extraction ion-trap. The predatory mite N. californicus preferred soybean plants infested with T. urticae compared to those infested with A. gemmatalis. Multiple infestation did not interfere with its preference to T. urticae. Multiple herbivory of T. urticae and A. gemmatalis modified the chemical profile of volatile compounds emitted by soybean plants. However, it did not interfere with the search behavior of N. californicus. Out of the 29 identified compounds only five promoted predatory mite response. Thus, regardless of single or multiple herbivory by T. urticae with or without A. gemmatalis, the indirect induced resistance mechanisms operate similarly. As such, this mechanism contributes to an increase in the encounter rate between predator and prey for N. Californicus and T. urticae, and the efficacy of biological control of mites on soybean.
Influence of oral health on the facial expressions and on the acupuncture examination in equines
Authors: Coneglian M.M. , Weber S.H. , Michelotto Junior P.V.
Published: June 2023

ABSTRACT The present study investigated the influence of oral health on horses’ facial expression, reactivity of the acupuncture points and the perception of trainers and owners. We investigated 87 adult horses involved in sports or working activities. Pain was scored in person and by photography by an evaluator “blinded” to the animals’ dental condition, using the Horse Grimace Scale (HGS). The acupuncture examination was performed by the same evaluator. Animals were evaluated before (T0) and 15 days (T1) after dental treatment. All horses included in the study had dental disorders. Statistically significant results were seen in median HGS scoring (3 vs. 1, p = 0.001) and number of reactive acupoints (11.2±5.6 vs. 4±2.9, p = 0.001). Additionally, complaints by the trainers/owners were lower at T1 compared with T0. There was a reduction in the pain reaction to application of pressure on following acupoints: dental point (44 vs. 4), Stomach-7 (31 vs. 3), Tiple-Heater (TH)-17 (27 vs. 4), and TH-16 (22 vs. 4). We concluded that acupuncture can be an adjunct method for diagnosis of dental disorders and treatment follow-up.
Morphometric analysis on erythrocytes of various livestock being reared in the Cholistan desert
Authors: Parveen S. , Lashari M.H. , Farooq U.
Published: June 2023

ABSTRACT The present study aimed to assess the influence of physiological exposure to erythrocyte indices; the morphometric parameters of the size of erythrocytes, as well as synergistic effects on the erythrocyte spectrum changes in various species being reared in different strip-wasteland conditions. We collected samples from 400 animals from the jugular veins and made 2000 blood smears, sample blood was taken by an expert veterinary doctor and transferred into an EDTA vacutainer. Blood smears were stained through the Pappenheim procedure and slides were photomicrographed under 100x objective. The parameters of morphometry of erythrocytes were largest in cattle after buffalo, sheep, while goats have the lowest one. The influence of age was significant p<0.05. The influence of sex was not significant in Cattle p<0.01, values of a parameter of erythrocytes were higher in young than in adults in sheep, goats, cattle, and buffalo. The size of erythrocytes in males was higher than females in sheep, goat, and buffalo but in cattle values of female erythrocytes were higher than in males. Further, gender, altitude, and age have a profound influence on the morphometric attributes of erythrocytes. It will be helpful in interpreting etiopathogenetic conditions in human beings and other animals.
Marandu grass pastures with the same average height and different horizontal structures change the feeding behavior of grazing sheep?
Authors: Silva J.G. , Reis L.A. , Oliveira D.H.A.M. , Silva S.P. , Silva N.A.M. , Borges G.S. , Santos M.Ed.R.
Published: June 2023

ABSTRACT The objective was to investigate the feeding behavior of sheep in marandu grass (Brachiaria brizantha cv. Marandu) pastures under continuous stocking with the same average height and different horizontal structures. The treatments were composed of less heterogeneous pastures (P-H, 24% coefficient of variation of plant heights and more heterogeneous pastures (P+H, 46% coefficient of variation of plant heights) and the locations of the picket, front and back, were also evaluated. A randomized block design was used, with split plots in space and four replications in two years. Crossbred lambs were used, managed under continuous stocking and variable stocking rate, to maintain average height of pastures at 30 cm. Greater masses of total forage, live leaf, live stem and dead material, and greater time of sheep in rumination, occurred in the front, in relation to the paddock background. In P-H, grazing time (GT) did not vary between regions. In P+H, GT was lower at the front than at the background. Idle time (IT) was similar between P-H and P+H. However, the animals remained more IT in the front than in the background. The feeding behavior of grazing sheep is modified in marandu grass pastures under continuous stocking with the same average height, but with different spatial variability of the vegetation.
Temporary hyperpigmentation as a complication of fixing the freestyle libre sensor in a cat - a case report
Authors: Castro S.M. , Souza H.J.M. , Alexander D. , Cid G.C.
Published: June 2023

ABSTRACT This report described temporary hyperpigmentation occurring in a cat after use of the FreeStyle® Libre sensor by applying three different adhesive glues. The device was continuously used as an aid for the treatment of diabetes mellitus. Histopathological examination revealed mild focal chronic active dermatitis. While the coat color change occurred due to inflammation and did not affect the device functioning, owners should be alerted to the possibility of this complication.
Anthelmintic resistance against gastrointestinal nematodes in beef cattle: effect on liveweight gain of grazing livestock in Mexico
Authors: Libreros-Osorio U. , Vázquez-Arrieta D.D. , Limón I.D. , Patricio-Martínez A. , Patricio F. , Villa-Mancera A.
Published: June 2023

ABSTRACT This study aimed to determine the efficacy and parasite resistance of levamisole (LV) and ivermectin (IVM) in beef cattle naturally infected with gastrointestinal nematodes, as well as the effect on the liveweight gain in a tropical wet region of Oaxaca, Mexico. From November 2019 to January 2020, sixty-six grazing calves were randomly allocated into three groups of twenty-two animals each, treated with LV or IVM or an untreated control group (day 0). Feces were collected 1 day before treatment and 15 days after treatment. The liveweight gain from each animal was recorded at days 0, 15, 30 and 45 post treatment. The LV group presented the highest reduction of eggs per gram (EPG) of feces, followed by the IVM group. Resistance to IVM was detected, although LV resistance was also suspected. The IVM group had significantly higher effective treatment at 93.5%, resulting in an increase (P<0.05) of liveweight gain of 16.1kg, followed by the LV group (92.4%) with 17.1kg, compared to the untreated control group. A signiﬁcant (P < 0.05) negative correlation was observed between EPG and weight gain for the LV (�� = -0.46) and IVM groups (�� = -0.32). LV and IVM showed a lack of efficacy against gastrointestinal nematodes, as well as an adequate capacity for EPG reduction but with IVM resistance and detrimental effects on growth performance in grazing beef cattle.
Word final prolongations: acoustic characteristics and influence on speech fluency perception
Authors: Souza Lívia Maria Santos de , Martins-Reis Vanessa de Oliveira , Santos Pâmela Jesus dos , Gomes Dianete Ângela do Valle , Lima Aveliny Mantovan , Celeste Letícia Correa
Published: June 2023

The aim of this study was to characterize word final prolongations in individuals with and without stuttering as well as to investigate the influence of end of words prolongations on speech fluency perception. In Experiment 1, 14 subjects were submitted to speech fluency evaluation for analysis of duration and average frequency of extended phones at the end of words. In Experiment 2, twenty lay judges were asked to judge the fluency degree of utterances without disfluency, utterances containing prolongations and utterances containing filled pauses. In experiment 1 the groups differed only in the duration’s variation; in both groups the prolongations in monosyllabic words prevailed; 80% of the prolonged phones in both groups were vowels. In experiment 2 no significant difference was found in the comparison between the judgements of prolongations and filled pauses. The utterances without disfluency differentiated themselves significantly from the others. We suggest that characteristics such as position in the word, duration and physical concomitants should be considered before deeming prolongations as a stuttering-like disfluency.
MALE ADOLESCENTS' EARLY SEXUAL INITIATION IN THE CONTEXT OF GENDER DIVERSITY
Authors: Araújo Wallacy Jhon Silva , Bragagnollo Gabriela Rodrigues , Galvão Danielle Laet Silva , Brandão Neto Waldemar , Camargo Rosangela Andrade Aukar de , Monteiro Estela Maria Leite Meirelles
Published: June 2023

ABSTRACT Objective: to understand the early sexual initiation process among male adolescents attending school in the context of gender diversity, in the light of Madeleine Leininger's Theory. Method: a descriptive and exploratory research study with a qualitative approach, conducted with 18 adolescents attending school in the city of Recife-Pernambuco, Brazil. The individual interviews were conducted from June to December 2018 and a semi-structured interview script was used to produce the empirical material. As analytical resource, the IRAMuTeQ® software was resorted to in order to categorize the data in the thematic modality. Results: four thematic axes emerged from the interviews, namely: Influencing factors in early sexual initiation; Experience in early sexual initiation; Gender identity in the context of multiple masculinities; and Cultural aspects related to early sexual initiation. Sexual initiation emerges as a requirement for male adolescents to be respected and accepted in a group. It is understood that early sexual initiation is mainly characterized by emotional immaturity and by lack of knowledge, exposing adolescents to situations of vulnerabilities. Conclusion: taboos inhibit the establishment of dialogical relations in the family context and in the school setting, configuring situations of vulnerability for early sexual initiation, given the findings of sexuality in the context of gender diversity. Interdisciplinary and intersectoral actions, with emphasis on nurses' articulating role, become essential to foster dialogical spaces of congruent care for adolescents aiming at constructing knowledge about gender diversity and safe sexual initiation.
A conquista do conceito de patrimônio cultural na Constituição de 1988
Authors: MOTTA LIA
Published: June 2023

RESUMO Este artigo visa mostrar a importância do conceito de patrimônio adotado na Constituição Federal de 1988; a primeira constituição brasileira a estabelecer uma diretriz para a atribuição de valores de patrimônio aos bens culturais. Até então, as constituições brasileiras apenas descreviam os tipos de bens que mereciam proteção. Hoje, estes devem ser valorizados como referências de memórias, identidades e ações de diferentes grupos sociais, independentemente das características estéticas e estilísticas consagradas pelas elites intelectuais ou aquelas relacionadas a fatos memoráveis da história. Para isso, o presente texto apresenta a pesquisa realizada na documentação e em informações sobre os bastidores da Assembleia Nacional Constituinte, de 1987 e 1988, e sobre o contexto político e social que a antecedeu, reafirmando o caráter democrático do conceito adotado, bem como seu potencial para a expansão de políticas públicas de valorização e preservação de bens culturais materiais e imateriais. Visa também estimular a proteção do patrimônio material, considerando o conceito constitucional, ainda a ser explorado com mais intensidade, mesmo após mais de trinta anos da promulgação da Constituição.
A escola básica e a qualificação do trabalho de professores: desafios e perspectivas do mestrado profissional em Educação
Authors: Sousa Maria do Carmo de , Zanon Dulcimeire Aparecida Volante
Published: June 2023

RESUMO Neste artigo, apresentamos um debate sobre a formação continuada de professores na modalidade mestrado profissional e, para tanto, delineamos a seguinte questão: há mesmo o necessário clamor de conversa implicada entre a escola básica e a qualificação do trabalho de professores? Para respondê-la, utilizamos informações advindas de um programa de pós-graduação profissional em Educação. As reflexões podem ajudar a entender esse contexto formativo no que diz respeito aos desafios e às perspectivas que permeiam a qualificação do trabalho docente, o desenvolvimento profissional, as demandas de pesquisas desenvolvidas pelos professores da educação básica e a parceria entre universidade e escola.
Juventude como mirante dos fenômenos sociais e a reforma do ensino médio — o que se vê quando se olha de um outro lugar?
Authors: Peregrino Mônica , Prata Juliana de Moraes
Published: June 2023

RESUMO Este artigo objetiva apresentar o desenho de uma abordagem para o campo da educação, a partir da perspectiva da juventude, construindo-a como um “lugar de observação” da reforma do ensino médio. Nela, trataremos a juventude como posição social, sujeita a uma variedade de condições de vida e de modos de expressão, e procuraremos demonstrar as possibilidades analíticas abertas para o campo da educação, a partir dos estudos de transição para a vida adulta, por meio de um exercício sobre o ensino médio e sua reforma. Os resultados apontam para uma definição de juventude em que espaço (lugar, na perspectiva de Bourdieu) e tempo (fluxo da história, na formulação de Mannheim) sintetizam a localização desse conjunto social (os jovens). E ainda, ao tomarmos o ensino médio como linha divisória entre modos distintos de transição escola-trabalho, demonstraremos o impacto da reforma sobre aqueles que ela joga nas sombras: jovens recentemente incluídos nesse patamar de ensino.
Youth as a viewpoint of social phenomena and the reform of high school — what do you see when you look from another place?
Authors: Peregrino Mônica , Prata Juliana de Moraes
Published: June 2023

ABSTRACT This article seeks to design a new investigative approach in education field of studies, starting from the youth, building it as a “place of observation” of the high school reform. In it, we will, at first, deal with youth as a social position, subject to a variety of living conditions and modes of expression. In a second movement, we will try to demonstrate the analytical possibilities opened up by such an approach to the field of education, based on transition studies and through an analysis exercise on high school and its reform. The results point, firstly, to a definition of youth in which space (place, in Bourdieu’s perspective) and time (flow of history, in Mannheim’s formulation) synthesize the location of this social group (young people). Secondly, by taking high school as a dividing line between different modes of school-work transition, we will demonstrate the impact of the reform on those it casts in the shadows: young people recently included in this level of education.
Atuação docente no ensino superior: facilidades, dificuldades e perspectivas frente à covid-19
Authors: Luiz Maria Eduarda Tomaz , Martins Samara Escobar , Marinho Alcyane
Published: June 2023

RESUMO Este estudo objetivou investigar as implicações da pandemia da covid-19 na atuação dos professores de um programa de pós-graduação stricto sensu de uma universidade pública do estado de Santa Catarina. Participaram do estudo nove professores, com os quais realizamos entrevistas online. Caracteriza-se como um estudo de campo, descritivo e exploratório, com abordagem qualitativa dos dados. Os dados foram analisados a partir de elementos da técnica de análise de conteúdo. Os resultados apresentam os recursos e as estratégias utilizadas por esses professores durante o período pandêmico, bem como aspectos positivos e negativos do ensino remoto. Foi identificado que os recursos e as ferramentas mudaram, mas o formato das aulas não, com exceção das disciplinas que têm componentes práticos. Além disso, constatou-se que as capacitações e oportunidades de formação nesse período foram insuficientes ou insatisfatórias, o que culminou em uma sobrecarga dos docentes. Apesar disso, detectou-se uma perspectiva positiva para a atuação docente em um período pós-pandemia.
Evaluation of a pilot system for removal of the herbicide 2,4-dichlorophenoxyacetic acid and absorbance determination after clarification and adsorption on granular activated carbon
Authors: Coelho Edumar Ramos Cabral , Brega Renata Santos
Published: June 2023

Abstract The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) has been detected in water bodies worldwide, precluding their use for water supply. Despite this, scientific studies assessing the behavior of herbicides in water treatment systems are scarce, which motivated this study on 2,4-D removal. 2,4-D removal and its relationship with absorbance were investigated using a pilot system comprising coagulation, sedimentation, filtration, granular activated carbon (GAC) adsorption, and chlorinated disinfection. 2,4-D removal ranged from 15 to 64% after sedimentation, from negative values to 19% after filtration, and from 5 to 16% after chlorination, with total removal rates of 19 to 70%. Breakthrough curves showed an adsorption capacity of 0.70 mg g−1 GAC for a C/C0 ratio of 0.50 and a VTW/VGAC ratio of 3.598 for a breakthrough concentration of 30 ± 3 μg L−1. The positive correlation between absorbance and 2,4-D (R2 = 0.78) in the GAC column effluent indicated that absorbance can be used for early prediction of 2,4-D breakthrough. GAC column adsorption associated with coagulation produced treated water in accordance with the criteria for turbidity, apparent color, and 2,4-D concentration established by the Minister's Office/Ministry of Health — GM/MS Ordinance No. 888/2021, representing a promising technological alternative for 2,4-D removal from water treatment systems.
A survey of multilayer networks modelled to assess robustness in infrastructure systems
Authors: Mahabadi Zahra , Varga Liz , Dolan Tom
Published: June 2023

The development of modern societies places particular demands on the consistent performance of infrastructure systems. Because multilayer network models are capable of representing the interdependencies between infrastructure components, they have been widely used to analyse the robustness of infrastructure systems. This study is a systematic review of the literature published since 2010. It aims to investigate how multilayer network models have been used in analysing the robustness of infrastructure systems. According to the findings, the percolation theory was the most popular method, used in about 57% of papers. Regarding the properties, coupling strength and node degree were the most common, while directed links and feedback conditions were the least common. The following gaps were identified, which provide opportunities for further research. These include the absence of models based on real-world data and the need for models that make fewer simplifying assumptions about complex systems. No papers considered all potential properties and their effect on boosting or weakening each other’s effect. By considering all properties, the importance of different properties on the robustness of infrastructure systems can be quantified and compared in future studies.
Anti-skid durability of porous drainage asphalt mixture based on discrete element
Authors: Qi Lin , Liu Jiahao , Liu Ziang
Published: June 2023

In order to improve safety indicators such as the skid resistance and durability of road, the discrete-element method is used to study the proportion of the asphalt mixture, and the spatial structure of the coarse aggregates and asphalt mortar are compared and analysed. Relevant models are established to compare their pendulum values and structural depth attenuation. When the fine aggregate is limestone and the surface polishing times do not exceed 3500 times, the 7/3S1 asphalt mixture has the best pendulum value. However, as the polishing times continue to increase, the mixture ratio also changes. Compared with the 7/3S1 asphalt mixture, the 8/2S1 asphalt mixture has better effect. When the fine aggregate is replaced by limestone, no matter what form the coarse aggregate is, the pendulum value has been improved to a certain extent comparing with the previous mixture. A2S2, 5/5S2, 7/3S2 and 8/2S2 blends, compared with A2A2, 5/5A2, 7/3A2 and 8/2A2 blends, the pendulum value was increased by 1.7, 0.5, 2.3 and 2.1%, respectively. The study shows that in different proportions of coarse aggregates, as the surface texture richness of the blended aggregate increases, the differences between the aggregates also increases, and skid resistance and durability are also enhanced. The research results provide a blending method to increase the skid resistance and durability of asphalt pavement.
Participación de las familias a través de comunidades de aprendizaje
Authors: Aponte Rivera Adriana , González Barrios Lourdes , González Barrios Ivana María
Published: June 2023

En la educación actual, es indispensable articular la inclusión a los procesos formativos y, así, promover la participación de todos los involucrados (escuela, familia, Estado y sociedad en general), por tanto, el objetivo general de la investigación fue fortalecer la participación de la familia en los procesos educativos de los estudiantes, a través, de comunidades de aprendizaje en la sede El Corozo de la Institución Educativa Patio Bonito de Montería, Córdoba. La metodología se basó en un enfoque cualitativo, bajo un diseño de investigación acción, para establecer el rol que la familia debe asumir desde las comunidades de aprendizaje en pro de su participación e inclusión a los procesos que adelantan los niños en la escuela. La población, estuvo constituida por la comunidad educativa ya mencionada, la muestra fueron los 21 padres de familia de los 26 niños y niñas entre los 8 y 13 años; que se encuentran matriculados y pertenecen a los grados 3º, 4º y 5º de la sede El Corozo. Los instrumentos utilizados fueron dos entrevistas, una a padres y otra al docente orientador, observación participante y una sesión de grupo; las categorías de análisis construidas fueron participación, comunidades de aprendizaje y comunicación; entre los hallazgos, se encontró, la existencia de comunidades de aprendizaje intuitivas sin la influencia directa y formal de los procesos educativos adelantados por la escuela, destacándose la necesidad de crear redes de apoyo que abran espacios a la participación familiar en todos los estamentos de la institución.
Book Review: Cecilia Sayad, The Ghost in the Image: Technology and Reality in the Horror Genre (New York: Oxford University Press, 2021)
Authors: Nisa Ami
Published: June 2023

Cecilia Sayad The Ghost in the Image: Technology and Reality in the HorrorGenre (New York: Oxford University Press, 2021). pp. 168, ISBN: 9780190065775(pb), £20.99; ISBN: 9780190065768 (hb), £81; ISBN 978019006577X (eBookePub), £17.99.
The study of nickel impurity segregation on LSNT perovskite open surfaces by means of ab initio molecular dynamics
Authors: Chistyakova A. A. , Bazhanov D. I.
Published: June 2023

In this paper, the segregation of the Ni impurity on open surfaces of the doped strontium titanate perovskite is investigated by means of ab initio molecular dynamics method based on the density functional theory and applied to a model periodic cell with stoichiometry La0.5Sr0.5TiO3 (LST).The performed studies are based on recent experimental observations on the segregation of Ni impurity atoms and their tendency to form clusters at the boundaries of defect structure of La0.2Sr0.7Ni0.1Ti0.9O3-δ (LSNT) perovskite. The results of the first-principles calculations of segregation energy showed that Ni does actively segregate toward the open surfaces. It was found that during segregation, nickel atoms leave the crystal volume to the perovskite surface and rise above its upper layer. Thus, the obtained results confirm the experimental data on the segregation and formation of nickel clusters on open LSNT surfaces.
Cadenas y eslabones del reciclaje: una aproximación etnográfica al trabajo con la basura
Authors: Rivadeneira Catalina , Trujillo Montalvo Patricio
Published: June 2023

El presente artículo constituye un recorrido narrativo y etnográfico por las cadenas económicas que unen al reciclaje con el uso comercial de la basura en la ciudad de Quito. Se analiza, a través de la observación participante, cómo las inequidades sociales producen una alta rentabilidad en los eslabones más altos y lucrativos de esta actividad económica. El reciclaje y su cadena productiva son parte del capitalismo neoliberal contemporáneo y su estrategia de acumulación basada en las diversidades de clase, etnia, género o etarias, que se reproducen de manera inequitativa en los primeros eslabones. De esta manera convierten la desigualdad en un beneficio económico para empresas especializadas que transforman materiales reciclados en otros de uso comercial. En esta trama, las mujeres pobres son utilizadas por los niveles superiores dentro de un complejo proceso de superexplotación y autoexplotación, lo cual evidencia un encadenamiento productivo caracterizado por acumular riqueza usando la cadena pobreza-desigualdad-basura-reciclaje.
Usos, aportes y desafíos de la evaluación como instrumento de políticas públicas
Authors: Del Tronco Paganelli José
Published: June 2023

El objetivo fundamental de este artículo es reflexionar y debatir, con base en la literatura especializada, los usos, aportes y desafíos de la evaluación en el ámbito de las políticas públicas. Partiendo de reconocer la pertinencia de esta actividad en los distintos espacios de la vida pública e institucional de una sociedad, en este documento se hace hincapié en aquellas nociones que toda persona vinculada al estudio o la práctica de las políticas públicas debe conocer. Asimismo, se analizan las implicaciones de considerar a la evaluación un instrumento de política pública que es relevante en las diversas fases del ciclo. Finalmente, se pregunta y analiza cómo se puede conciliar desde la evaluación las diversas racionalidades presentes en el proceso de toma de decisiones.
Working in AnVIL: A Clinical Sequencing Evidence-Generating Research (CSER) consortium perspective. v1
Authors: Green Richard
Published: June 2023

Analysis, Visualization, and Informatics Lab-space (AnVIL) is a powerful new Genomics Data science cloud-based platform. AnVIL features a variety of tools for data processing and analysis. This protocol will cover steps toward setting up an account, creating workspaces, customizing docker images, and accessing data and tools through R studio and the command line. We provide troubleshooting tips and best practices on resources, data storage, and monitoring costs. We also provide suggestions on requesting data access from dbGap through AnVIL.