Búsqueda | SciELO

ABSTRACT BACKGROUND: The effect of weight loss (WL) on histopathological aspects of non-alcoholic fatty liver disease (NAFLD) may provide further insights into the dynamics of hepatic recovery after WL. OBJECTIVE: To analyze the effects of pre-operative WL on insulin resistance- and NAFLD-related histology in individuals undergoing bariatric surgery (BS) with or without pre-operative WL. DESIGN AND SETTING: A matched cross-sectional study was conducted at a public university hospital and a private clinic in Campinas, Brazil. METHODS: An analytical, observational, cross-sectional study was conducted using prospectively collected databases of individuals who underwent BS and liver biopsy at either a public tertiary university hospital (with pre-operative WL) or a private clinic (without pre-operative WL). Random electronic matching by gender, age, and body mass index (BMI) was performed and two paired groups of 24 individuals each were selected. RESULTS: Of the 48 participants, 75% were female. The mean age was 37.4 ± 9.6. The mean BMI was 38.9 ± 2.6 kg/m2. Fibrosis was the most common histopathological abnormality (91.7%). Glucose was significantly lower in the WL group (92 ± 19.1 versus 111.8 ± 35.4 mg/dL; P = 0.02). Significantly lower frequencies of macrovesicular steatosis (58.3% versus 95.8%; P = 0.004), microvesicular steatosis (12.5% versus 87.5%; P < 0.001), and portal inflammation (50% versus 87.5%; P = 0.011) were observed in the WL group. CONCLUSION: Pre-operative WL was significantly associated with lower frequencies of macro- and mi- crovesicular steatosis, portal inflammation, and lower glycemia, indicating an association between the recent trajectory of body weight and histological aspects of NAFLD.

https://doi.org/10.1590/1516-3180.2022.0663.r1.24042023

Morphofunctional evaluation of peripapillary retinoschisis associated with myopic posterior staphyloma and hyaloid traction: does it cause peripapillary vitreoretinal traction?
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Borges, Fillipe B.

; Zacharias, Leandro Cabral

; Pimentel, Sergio Luis Gianotti

; Cunha, Leonardo Provetti

; Monteiro, Mário Luis Ribeiro

; Preti, Rony Carlos

Arquivos Brasileiros de Oftalmologia

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2024, Volumen 87 Nº 3 elocation e2021-0377

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

ABSTRACT This case report presents the details of a 33-year-old female patient who was referred to a specialized retina service because of mild vision loss in her right eye). The patient’s visual acuity was 20/25 in right eye and 20/50 in the left eye (; amblyopic); the spherical equivalent was -12.75 diopters (right eye) and -14.75 diopters (left eye). Multimodal retinal imaging showed peripapillary schisis in both the inner and outer retinal layers, grade II posterior vitreous detachment, and a tessellated fundus. Using Humphrey perimetry and MP-3 microperimetry, the functional evaluation indicated macular sensitivity within normal limits and decreased sensitivity in the peripapillary region, especially in right eye. The pattern-re versal visual evoked potential was measured. The N75 and P100 latency and amplitude in right eye were within normal values for checks of 1º. However, the amplitude was low for checks of 15′. Highly myopic patients who have posterior staphyloma that involves the optic nerve are susceptible to posterior hyaloid traction, and the resulting peripapillary vitreous traction may compromise vision.

RESUMO Este relato de caso apresenta um paciente feminino de 33 anos encaminhado para um serviço especializado de retina devido à leve perda de visão em olho direito. A acuidade visual foi de 20/25 no olho direito e 20/50 no olho esquerdo, o equivalente esférico foi de -12,75 dioptrias e -14,75 dioptrias, respectivamente. Avaliações multimodais revelaram isquese peripapilar nas camadas internas e externas da retina, descolamento vítreo posterior grau II e fundo tesselado. Avaliação funcional com perimetria Humphrey e microperimetria MP-3 revelaram sensibilidade macular normais e diminuição da sensibilidade na região peripapilar, especialmente no olho direito. Potencial visual evocado de padrão reverso apresentou no olho direito latência e amplitude N75 e P100 dentro dos valores normais para verificação de 1º. Entretanto, a amplitude foi baixa para a de 15′. Pacientes alto míopes com esfiloma posterior envolvendo o nervo óptico são suscetíveis à tração da hialoide posterior. Portanto a tração vitreopapilar resultante pode causar comprometimento da visão.

https://doi.org/10.5935/0004-2749.2021-0377

O núcleo da tríade sombria prediz o ambientalismo por meio da orientação à dominância social
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Monteiro, Renan P.

; Queiroz da Cunha, Lucas

; Lopes Loureto, Gleidson Diego

; Henrique Araújo, Iara Caroline

; Pimentel, Carlos Eduardo

Ciencias Psicológicas

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2023, Volumen 17 Nº 2 elocation e2891

Resumen: Es En Pt | Texto: Es En Pt | PDF: Es | PDF: En | PDF: Pt

Resumen: El presente estudio tuvo como objetivo verificar el papel mediador de la orientación a la dominancia social en la relación entre el núcleo de la tríada oscura y el ambientalismo. Participaron 305 personas con edades comprendidas entre 18 y 77 años (Medad = 26,4; DEedad = 11,25; 59,7 % mujeres). Los resultados indicaron que, entre los 8 rasgos de personalidad analizados considerando los modelos Big Five y Dark Triad, solo la psicopatía se correlacionó con el ambientalismo, que se correlacionó moderadamente con la orientación a la dominancia social. Considerando que los tres rasgos oscuros comparten déficits empáticos, baja amabilidad y honestidad/humildad, se probó el efecto del núcleo de la tríada oscura para la predicción del ambientalismo y se observaron efectos directos. Sin embargo, tales efectos directos no fueron estadísticamente significativos con la inclusión de la orientación a la dominancia social, configurando una mediación completa, ya que el núcleo oscuro predice indirectamente el ambientalismo. Por lo tanto, se observa que la dominancia social funciona como un mecanismo que permite a las personas con rasgos oscuros no preocuparse por el medio ambiente y explotarlo en beneficio propio.

Abstract: The present study aimed to verify the mediating role of social dominance orientation in the relationship between the core of the dark triad and environmentalism. Participants were 305 people aged between 18 and 77 years old (Mage = 26.4; SDage = 11.25; 59.7 % women). The results indicated that among the 8 personality traits analyzed, considering the Big Five and Dark Triad models, only psychopathy was correlated with environmentalism, which was moderately correlated with social dominance orientation. Considering that the three dark traits shared empathic deficits, low agreeableness and honesty/humility, the effect of the dark triad core was tested for the prediction of environmentalism, observing direct effects. However, such direct effects did not remain statistically significant with the inclusion of social dominance orientation, configuring a complete mediation, since the dark core indirectly predicted environmentalism. Therefore, it is observed that social dominance orientation works as a mechanism that allows people with dark traits not to worry about the environment, exploiting it for their own benefit.

Resumo: O presente estudo objetivou verificar o papel mediador da orientação à dominância social na relação entre o núcleo da tríade sombria da personalidade e o ambientalismo. Participaram 305 pessoas com idades entre 18 e 77 anos (Midade = 26,4; DPidade = 11,25; 59,7 % mulheres). Os resultados indicaram que entre os 8 traços de personalidade analisados, considerando os modelos dos Cinco Grandes Fatores e da Tríade Sombria, apenas a psicopatia se correlacionou com ambientalismo, sendo que este se correlacionou moderadamente com a orientação à dominância social. Considerando que os três traços sombrios são talhados por déficits empáticos, baixa amabilidade e honestidade/humildade, testou-se o efeito do núcleo da tríade sombria da personalidade para a predição do ambientalismo, observando-se efeitos diretos. Contudo, tais efeitos diretos não se mantiveram estatisticamente significativos com a inclusão da orientação à dominância social, configurando uma mediação completa, posto que o núcleo da tríade sombria predisse indiretamente o ambientalismo. Logo, observa-se que a orientação à dominância social funciona como um mecanismo que possibilita pessoas com traços sombrios não se preocuparem com o meio ambiente, explorando-o em benefício próprio.

https://doi.org/10.22235/cp.v17i2.2891

Respuesta de cultivares de frijol a inoculación e incidencia natural del tizón de halo y utilidad de marcadores moleculares para selección
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Jiménez-Hernández, Yanet

; Montero-Tavera, Víctor

; Ramírez Pimentel, Juan Gabriel

; Aguirre-Mancilla, César L.

; Raya Pérez, Juan Carlos

; Acosta-Gallegos, Jorge A.

Revista mexicana de ciencias agrícolas

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2023, Volumen 14 Nº 8 elocation e3274

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract In the Bajío, bean halo blight [Pseudomonas syringae pv. phaseolicola (Psph)] causes severe damage to varieties of the Azufrado and Cacahuate Bola types. To identify resistant genotypes, various bean materials were inoculated with two isolates, races 2 and 6. Likewise, readings of the reaction to natural infection by Psph in the field were recorded in two sets of Azufrado-type lines evaluated under rainfed conditions in Celaya, Guanajuato, in 2018, one with 10 and another with 16 lines established in June and July, respectively. In the marker laboratory, primers B10, W13, and T8, associated with genes of resistance against the bacterium in various bean genotypes, were used to determine the association between the presence of the markers and resistance to Psph. The Azufrado-type genotypes established in June were severely damaged (reaction from 5 to 8 on a scale of 1 to 9) by Psph, while those of July were damaged to a lesser degree. In the first trial, environmental conditions favored the attack of the bacterium, conditions that did not occur in the second trial. Most of the genotypes inoculated with race 6 in the greenhouse were susceptible. Genotypes positive for the presence of the three markers used were susceptible to races 2 and 6; that is, the marked resistance factors do not provide resistance to those races. All evaluated genotypes of the Azufrado-type of Nueva Granada race were susceptible to Psph races 2 and 6. Among the inoculation-resistant genotypes are Flor de Mayo M38, San Rafael, Pinto Laguna 80, and Pinto Saltillo.

Resumen En el Bajío el tizón de halo del frijol [(Pseudomonas syringae pv. phaseolicola (Psph)] causa severo daño a variedades de los tipos Azufrado y Cacahuate Bola. Para identificar genotipos resistentes se inocularon diversos materiales de frijol con dos aislados, razas 2 y 6. Asimismo, se registraron lecturas de la reacción a la infección natural por Psph en campo en dos juegos de líneas de tipo Azufrado evaluadas bajo temporal en Celaya, Guanajuato en 2018, uno con 10 y otro con 16 líneas establecidas en junio y julio, respectivamente. En el laboratorio de marcadores se usaron los iniciadores B10, W13 y T8 asociados a genes de resistencia contra la bacteria en diversos genotipos de frijol para determinar la asociación entre la presencia de los marcadores y la resistencia a Psph. Los genotipos de tipo azufrado establecidos en junio fueron severamente dañados (reacción de 5 a 8 en escala de 1 a 9) por Psph, mientras que los de julio lo fueron en menor grado. En el primer ensayo las condiciones ambientales favorecieron el ataque de la bacteria, condiciones que no se registraron en el segundo ensayo. La mayoría de los genotipos inoculados con la raza 6 en invernadero, resultaron susceptibles. Genotipos positivos para la presencia de los tres marcadores utilizados fueron susceptibles a las razas 2 y 6; es decir, los factores de resistencia marcados no proporcionan resistencia a esas razas. Todos los genotipos evaluados del tipo azufrado de raza Nueva Granada, fueron susceptibles a Psph razas 2 y 6. Entre los genotipos resistentes a la inoculación se encuentran, Flor de Mayo M38, San Rafael, Pinto Laguna 80 y Pinto Saltillo.

https://doi.org/10.29312/remexca.v14i8.3274

Sistema de alerta de desastre baseado no CEP: limites e possibilidades
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Fonseca, Murilo Noli da

; Garcias, Carlos Mello

; Silva, Luciene Pimentel da

Cadernos Metrópole

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Dic 2023, Volumen 25 Nº 58 Paginas 923 - 946

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

Abstract This research seeks to evaluate whether the issuance of alerts for adverse events and disasters via Short Message Service based on the postal code registered by people is an effective means to prepare the population. The methodological procedures include spatialization of codes registered by people and a comparison with the existing codes, roads, and socio-environmental risks. The results indicate a low percentage of registered people, especially in areas of socio-environmental vulnerability. Furthermore, 10% of informal settlements have limitations in the regularization of roads, which implies the absence of postal codes. Therefore, the Civil Defense process of issuing alerts based on postal codes does not effectively reach the areas of socio-environmental vulnerability, enhancing the risks for the vulnerable population.

Resumo Esta pesquisa busca avaliar se a emissão de alertas de eventos adversos e desastres via Short Message Service, com base no Código de Endereçamento Postal (CEP) cadastrado pelas pessoas, é um meio eficaz para torná-las preparadas. Os procedimentos metodológicos incluem a espacialização dos códigos cadastrados pelas pessoas e a comparação com os códigos e as vias existentes e os riscos socioambientais. Os resultados indicam um percentual baixo de pessoas cadastradas, sobretudo em áreas de vulnerabilidade socioambiental. Ainda, 10% dos assentamentos informais possuem limitações na regularização de vias, implicando a inexistência de CEP. Logo, o processo da Defesa Civil de emissão de alertas baseado no código postal não atinge de forma efetiva as áreas de vulnerabilidade socioambiental, potencializando os riscos dos vulneráveis.

https://doi.org/10.1590/2236-9996.2023-5807

Fluoride-modified implant surfaces improves osseointegration in the tibias of rats with induced diabetes
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Oliveira, Guilherme José Pimentel Lopes de

; Fontanari, Lucas Amaral

; Souza, João Antônio Chaves de

; Spin-Neto, Rubens

; Elias, Carlos Nelson

; Marcantonio Junior, Elcio

; Orrico, Silvana Regina Perez

Brazilian Dental Journal

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Oct 2023, Volumen 34 Nº 5 Paginas 43 - 52

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

Abstract This study evaluated the influence of a fluoride-modified titanium surface on osseointegration in rats with induced diabetes. One hundred and eighty rats were randomly allocated into 3 groups with 60 animals each: Control group (C): Animals without diabetes; Diabetes Group (D): Animals with uncontrolled induced diabetes; Controlled Diabetes Group (CD): Animals with diabetes induced controlled by the insulin administration. Diabetes was induced by streptozotocin injection. Each animal received 2 implants in the proximal tibial metaphysis, one with the machined surface (M) and the other one with a fluoride-modified titanium surface (F), after 4 weeks of induction of diabetes. The animals were submitted to euthanasia 2, 4, and 6 weeks after the implant placement (n = 20 animals/group). The osseointegration was evaluated by the implant removal torque test and the histometric analysis of the non-decalcified histological sections: 1) Contact bone/implant (%BIC); 2) Bone tissue area between implant threads (%BBT). Implants with F surface showed a higher removal torque than implants with surface M in all groups. There was no difference in %BIC between the groups regardless of the surface used. The F surface showed a tendency to present higher %BBT values for the 3 evaluation periods in the D group. The fluoride-modified implant surface has no impact on the %BIC and %BBT. However, the fluoride-modified implant surface increases the locking of the implants with the bone. The hyperglycemia was associated with lower removal torque values despite the surfaces of the implant used.

Resumo Este estudo avaliou a influência de uma superfície de titânio modificada com flúor na osseointegração em ratos com diabetes induzida. Cento e oitenta ratos foram distribuídos aleatoriamente em 3 grupos com 60 animais cada: Grupo controle (C): Animais sem diabetes; Grupo Diabetes (D): Animais com diabetes induzida descompensada; Grupo Diabetes Controlado (CD): Animais com diabetes induzido controlado pela administração de insulina. O diabetes foi induzido por injeção de estreptozotocina. Cada animal recebeu 2 implantes na metáfise proximal da tíbia, um com superfície usinada (M) e outro com superfície de titânio modificado com flúor (F), após 4 semanas de indução do diabetes. Os animais foram submetidos à eutanásia 2, 4 e 6 semanas após a colocação do implante (n = 20 animais/grupo). A osseointegração foi avaliada pelo teste de torque de remoção do implante e pela análise histométrica dos cortes histológicos não descalcificados: 1) Contato osso-implante (%BIC); 2) Área de tecido ósseo entre as roscas do implante (%BBT). Os implantes com superfície F apresentaram maior torque de remoção do que os implantes com superfície M em todos os grupos. Não houve diferença no %BIC entre os grupos independente da superfície utilizada. A superfície F mostrou tendência a apresentar maiores valores de %BBT para os 3 períodos de avaliação no grupo D. As superfícies de implantes modificadas com flúor não influenciaram nos dados de %BIC e %BBT. Entretanto, essas superfícies aumentaram o travamento dos implantes no tecido ósseo. A hiperglicemia foi associada a menores torques de remoção dos implantes independentemente do tipo de superfície de implante utilizada.

https://doi.org/10.1590/0103-6440202305439

Aprendizaje autónomo y actitudes hacia las matemáticas en estudiantes de contabilidad y finanzas de la Universidad de San Martín de Porres
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santiago-Lopez, Carlos

; Farfán-Pimentel, Johnny Félix

Revista de Ciencias Humanísticas y Sociales (ReHuSo)

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Abr 2023, Volumen 8 Nº 1 Paginas 65 - 79

Resumen: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen En el presente estudio se consideró determinar la relación entre el aprendizaje autónomo y las actitudes hacia las matemáticas en estudiantes de contabilidad y finanzas de la Universidad de San Martín de Porres. En relación a la metodología se aplicó un enfoque cuantitativo, con diseño no experimental, de nivel básico y correlacional. La población estuvo conformada por 650 estudiantes de la Escuela Profesional de Contabilidad y Finanzas de la Universidad de San Martín de Porres. Por muestreo probabilístico, la muestra consistió en 242 estudiantes. Después del proceso estadístico Rho de Spearman, los resultados mostraron r = 0,280** y p valor = 0,000<0,05. Es decir, el aprendizaje autónomo y las actitudes hacia las matemáticas están relacionadas de manera directa y significativa en estudiantes de contabilidad y finanzas de la Universidad de San Martín de Porres. De tal forma que se llegó a aceptar la hipótesis alterna y rechazar la hipótesis nula.

Abstract The present study considered determining the relationship between autonomous learning and attitudes towards mathematics in accounting and finance students at the Universidad de San Martín de Porres. In relation to the methodology, a quantitative approach was applied, with a non-experimental, basic level and correlational design. The population consisted of 650 students of the Professional School of Accounting and Finance of the Universidad de San Martín de Porres. By probability sampling, the sample consisted of 242 students. After Spearman's Rho statistical process, the results showed r = 0.280** and p value = 0.000<0.05. In other words, autonomous learning and attitudes towards mathematics are directly and significantly related in accounting and finance students of the University of San Martin de Porres. Thus, the alternative hypothesis was accepted and the null hypothesis was rejected.

https://doi.org/10.33936/rehuso.v8i1.5256

Programa de intervención farmacéutica periférica para la prevención de anemia ferropénica en niños
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Alcalá Pimentel, María Antonieta

; García Ramírez, Kattya Liliana

; Ponce Pardo, John Eloy

Horizonte Médico (Lima)

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

Abr 2023, Volumen 23 Nº 2 elocation e2194

Resumen: En Es | Texto: En Es | PDF: En | PDF: Es

Abstract Objective: To identify how the implementation of a peripheral pharmaceutical intervention program influences the prevention of anemia in children from 0 to 5 years of age. Materials and methods: A quantitative, descriptive and comparative study was conducted with a purposive nonprobability sampling. The study population consisted of 40 children and the sample included 28 children from 0 to 5 years of age, of both sexes, living in the Carlos Manuel Cox shanty town, located in the district of Ancón, province of Lima, Peru. Hematological tests were performed to measure the hemoglobin level in the children, and questionnaires were administered to their caregivers or parents. An awareness program on anemia, parasitosis, nutritious food, good hygiene practices, medical control, and medical and pharmacological treatment was undertaken. A Likert scale was used to determine the prevention of iron deficiency anemia. For blood analysis, a microhematocrit test was performed to measure the hemoglobin levels, prior to the awareness of anemia. The sampling was carried out by a medical technologist together with the researchers. Data processing was conducted using IBM SPSS Statistics V25.0 and Microsoft Excel programs. Correlations between variables were determined using Pearson’s correlation coefficient. Results: Concerning the results of knowledge about anemia, a mean of 7.6 and a standard deviation of 2.5 were found in the pretest, and a mean of 18.0 and a standard deviation of 0.0 were found in the posttest, thus there was no increase in knowledge. Conclusions: The pharmaceutical intervention program positively influences the knowledge of mothers about the prevention of iron deficiency anemia in their children.

Resumen Objetivo: El objetivo fue identificar cómo la aplicación de un programa de intervención farmacéutica periférica influye en la prevención de la anemia en niños de 0 a 5 años. Materiales y métodos: El estudio se aplicó bajo un enfoque cuantitativo y fue descriptivo y comparativo. Se realizó un muestreo no probabilístico de tipo intencional. La población fue de 40 niños, con una muestra de 28 niños (de 0 a 5 años) de ambos sexos pertenecientes al asentamiento humano Carlos Manuel Cox, en el distrito de Ancón en la provincia de Lima, Perú. Se aplicaron pruebas hematológicas para medir el nivel de hemoglobina en los niños, así como cuestionarios que resolvieron sus cuidadores o padres. Se sensibilizó sobre la anemia, así como acerca de la parasitosis, alimentos nutritivos, hábitos de higiene control y tratamiento médico y farmacológico. Se aplicó una escala de Likert para la prevención de la anemia ferropénica. Para el análisis de sangre, se procedió con una prueba de microhematocrito para medir la hemoglobina, previa sensibilización sobre la anemia, en la que la toma de muestras estuvo a cargo de un tecnólogo médico junto con las investigadoras. El procesamiento de datos se realizó con los programas SPSS 25.0 y Microsoft Excel. Las correlaciones entre las variables se determinaron mediante el coeficiente de correlación de Pearson. Resultados: Respecto a los resultados de conocimientos sobre anemia, en el pretest se encontró una media de 7,6, con una desviación estándar de 2,5, que después, en el postest, se presentó como 18,0 y 0,0, respectivamente; por lo tanto, no representa un aumento en el conocimiento. Conclusiones: Se determinó que el programa de intervención farmacéutica influye positivamente en el conocimiento de las madres sobre la prevención de la anemia ferropénica en sus hijos.

https://doi.org/10.24265/horizmed.2023.v23n2.06

Stingless bee Trigona spinipes (Hymenoptera: Apidae) behavior on chayote flowers (Sechium edule)
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Malerbo-Souza, Darclet Teresinha

; Costa, Carlos Frederico Silva da

; Pimentel, André Carlos Silva

; Andrade, Milena Oliveira de

; Siqueira, Rodrigo Alves de

; Silva, Robin César Barros da

; Souza, Camila Malerbo de

; Souza, Felipe Gusmão de

Acta Scientiarum. Animal Sciences

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2023, Volumen 45 elocation e56760

Resumen: En | Texto: En | PDF: En

ABSTRACT. This experiment aimed to evaluate the forage species and their effect on fruit production of the chayote crop. For this, the culture was under observation in the first ten minutes at each time, from 7:00 am to 6:00 pm, with three repetitions, in each year studied (1994, 2001, 2009 and 2016). With the exception of 2009, Trigona spinipes stingless bees were frequent and constant insects in these flowers between 8:00 am and 1:00 pm, visiting mainly male flowers for nectar collection and due to foraging behavior this stingless bee may be considered a pollinator of the chayote.

https://doi.org/10.4025/actascianimsci.v45i1.56760

10.

Diretriz Brasileira de Dispositivos Cardíacos Eletrônicos Implantáveis – 2023
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Teixeira, Ricardo Alkmim

; Fagundes, Alexsandro Alves

; Baggio Junior, José Mário

; Oliveira, Júlio César de

; Medeiros, Paulo de Tarso Jorge

; Valdigem, Bruno Pereira

; Teno, Luiz Antônio Castilho

; Silva, Rodrigo Tavares

; Melo, Celso Salgado de

; Elias Neto, Jorge

; Moraes Júnior, Antonio Vitor

; Pedrosa, Anisio Alexandre Andrade

; Porto, Fernando Mello

; Brito Júnior, Hélio Lima de

; Souza, Thiago Gonçalves Schroder e

; Mateos, José Carlos Pachón

; Moraes, Luis Gustavo Belo de

; Forno, Alexander Romeno Janner Dal

; D’Avila, Andre Luiz Buchele

; Cavaco, Diogo Alberto de Magalhães

; Kuniyoshi, Ricardo Ryoshim

; Pimentel, Mauricio

; Camanho, Luiz Eduardo Montenegro

; Saad, Eduardo Benchimol

; Zimerman, Leandro Ioschpe

; Oliveira, Eduardo Bartholomay

; Scanavacca, Mauricio Ibrahim

; Martinelli Filho, Martino

; Lima, Carlos Eduardo Batista de

; Peixoto, Giselle de Lima

; Darrieux, Francisco Carlos da Costa

; Duarte, Jussara de Oliveira Pinheiro

; Galvão Filho, Silas dos Santos

; Costa, Eduardo Rodrigues Bento

; Mateo, Enrique Indalécio Pachón

; Melo, Sissy Lara De

; Rodrigues, Thiago da Rocha

; Rocha, Eduardo Arrais

; Hachul, Denise Tessariol

; Lorga Filho, Adalberto Menezes

; Nishioka, Silvana Angelina D’Orio

; Gadelha, Eduardo Barreto

; Costa, Roberto

; Andrade, Veridiana Silva de

; Torres, Gustavo Gomes

; Oliveira Neto, Nestor Rodrigues de

; Lucchese, Fernando Antonio

; Murad, Henrique

; Wanderley Neto, José

; Brofman, Paulo Roberto Slud

; Almeida, Rui M. S.

; Leal, João Carlos Ferreira

Arquivos Brasileiros de Cardiologia

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2023, Volumen 120 Nº 1 elocation e20220892

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

https://doi.org/10.36660/abc.20220892

11.

A linguagem, a epistemologia e o ensino conceitual da dualidade onda-partícula
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Carvalho, Alexandre Tadeu Gomes de

; Pimentel, Rafael Filgueira

; Carvalho, Regina Simplício

; Laburu, Carlos

Revista Brasileira de Ensino de Física

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2023, Volumen 45 elocation e20220339

Resumen: En Pt | Texto: En Pt | PDF: En | PDF: Pt

At the 20th century dawn, the understanding of matter on a microscopic scale broke the Classical Physics barriers, giving birth to what we know today as Quantum Physics. The concepts of physical reality needed to be rediscussed, considering the strange dual object on which Quantum Physics was being built and a new structuring formalism needed to be developed. The present work reports the development of a didactic sequence that aims to teach the fundamentals of Quantum Physics in High School and Higher Education. The approach intends to offers means to avoid the nebulous notion of “wave-particle duality”, avoiding the pitfalls created by analogies with classical objects that obscure the understanding of the concept of a quantum object. The approach is developed in multimedia language organized around experiments shown in short videos, images, animations and computational simulations. Teaching by investigation was given, encouraging students to observe and analyze the phenomena and facts presented in an investigative way. For future application, a pilot test was elaborated using the participanty observation of teachers and questionary answered by the students, with a view to obtaining a first evaluation of the didactic sequence.

No início do século XX, a compreensão da matéria em escala microscópica demandou romper com paradigmas da Física Clássica, dando origem ao que conhecemos hoje como Física Quântica. Os conceitos de realidade física precisaram ser rediscutidos, considerando o estranho objeto dual sobre o qual a Física Quântica estava sendo erguida e um novo formalismo estruturante precisou ser desenvolvido. O presente trabalho relata o desenvolvimento de uma sequência didática que visa ensinar os fundamentos da Física Quântica no Ensino Médio e Superior. A abordagem utilizada oferece meios para contornar a turva noção de “dualidade onda-partícula”, evitando as armadilhas criadas pelas analogias com os objetos clássicos que obscurecem a compreensão do conceito de objeto quântico. A abordagem é desenvolvida na linguagem multimídia e organizada em torno de experimentos exibidos em vídeos de curta duração, imagens, animações e simulações computacionais. O ensino por investigação foi empregado, estimulando os alunos a observar e analisar de forma investigativa os fenômenos e fatos apresentados. Para aplicação futura, um teste piloto foi elaborado utilizando da observação participativa dos professores e de questionário respondido pelos alunos, com vistas a auferir uma primeira avaliação da sequência didática.

https://doi.org/10.1590/1806-9126-rbef-2022-0339

12.

Effects of red and infrared laser on post extraction socket repair in rats subjected to alendronate therapy
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

GONÇALVES, Fernanda Castanheira

; MASCARO, Bruno Arruda

; OLIVEIRA, Guilherme José Pimentel Lopes de

; SPOLIDÓRIO, Luis Carlos

; MARCANTONIO, Rosemary Adriana Chiérici

Brazilian Oral Research

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2023, Volumen 37 elocation e048

Resumen: En | Texto: En | PDF: En

Abstract This study evaluated the effect of photobiomodulation therapy (PBMT) with a red or infrared laser on the repair of post extraction sockets in rats administered alendronate (ALN). Forty male rats were randomly allocated into four groups: Control Group (CTR): subcutaneous administration of saline solution throughout the experimental period; Alendronate Group (ALN): subcutaneous administration of alendronate during the entire experimental period; Alendronate/Red Laser Group (ALN/RL): administration of ALN and irradiation with a GaAlAs laser (λ 660 nm); and Alendronate/Infrared Laser Group (ALN/IRL): administration of ALN and irradiation with a GaAlAs laser (λ 830 nm). The first lower molars were extracted 60 days after the beginning of the administration of the drugs. The PBMT was applied after tooth extraction (7 sessions with intervals of 48 hours between sessions). Thirty days after tooth extraction, the animals were euthanized. Micro-CT and histometric analysis were performed to assess the bone healing and soft tissue repair of the tooth socket. The ALN group presented with more bone than the CTR; however, most of this bone was necrotic. ALN does not affect the bone microarchitecture. On the other hand, PBMT with IRL enhances the bone density due to the increase in the number and reduction in the spacing of the trabeculae. The amount of vital bone and connective tissue matrix was higher in the ALN/RL and ALN/IRL groups than in the ALN and CTR groups. PBMT enhanced the healing of the post extraction sockets in rats subjected to ALN administration. Furthermore, IRL improved the new bone microarchitecture.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0048

13.

Surface Modification of the Ti25Ta25Nb3Sn Alloy and its Influence on The Cell and Bacteria Adhesion - In Vitro Studies
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Souza, Marisa A.

; Lima, Marcia C. M.

; Escada, Ana L. A.

; Pimentel, Bruna N. A. S.

; Vergani, Carlos E.

; Sabino, Roberta M.

; Popat, Ketul C.

; Alves, Ana P. Rosifini

Materials Research

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2023, Volumen 26 elocation e20230113

Resumen: En | Texto: En | PDF: En

In this study, alkaline treatment was used to change the surface of the new beta titanium alloy Ti25Ta25Nb3Sn and enhance its bioactivity. Ti25Ta25Nb3Sn, a new experimental alloy was processed in the laboratory and the surfaces were modified using alkaline treatment. Samples were soaked at 60 0C for 24 hours in different NaOH solutions to obtain surfaces with different morphologies. The surfaces were characterized by different techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), and Atomic Force Microscopy (AFM). The wettability of the surfaces was measured using the sessile drop method. In vitro studies were carried out to evaluate cell adhesion, proliferation, and bacteria adhesion. As a result of the alkaline treatment, a nanoporous and amorphous layer was formed on the Ti25Ta25Nb3Sn alloy surface with super hydrophilic behavior for all conditions evaluated. However, different nano topography was observed which affected biological response. The morphology obtained after immersion in 1.5 NaOH solution led to bacteria adhesion decreased and osteoblasts cells differentiation. Results of this study show that is possible to obtain a new titanium experimental alloy with excellent bulk and surface properties that may decrease the risk of infections and increase osseointegration.

https://doi.org/10.1590/1980-5373-mr-2023-0113

14.

Gestational and congenital syphilis: gaps to be elucidated
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Carvalho, Déborah Esteves

; Pimentel, João Victor Andrade

; Silva, Luise Oliveira Ribeiro da

; Rodrigues, Letícia Maria Cardoso Lima

; Andrade, Leonardo Santana

; Santana, Carlos Ramon Costa

; Menezes, Marcelo Antônio Silva

; Silva, Eloyse Emanuelle Nunes

; Santos, Gabryelle Eduarda Gama dos

; Santos, Sayron Natanael Lopes Pereira

; Gomes, Breno Gustavo do Nascimento

; Meira, Letícia Almeida

; Santos, Helga Machado de Farias

; Lopes, Izailza Matos Dantas

Revista da Sociedade Brasileira de Medicina Tropical

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2023, Volumen 56 elocation e0038-2023

Resumen: En | Texto: En | PDF: En

ABSTRACT Congenital and gestational syphilis are increasingly prevalent multisystemic infections in Brazil. This study aimed to present a case series of three children diagnosed with congenital syphilis even though their mother had unreactive treponemal tests. The VDRL (Venereal Disease Research Laboratory) titers of a 22-year-old mother with three pregnancies decreased after treatment. The mother did not have a reactive treponemal test, but all the three children were diagnosed with early congenital syphilis. This case series highlights the difficulty in diagnosing gestational and congenital syphilis in Brazil.

https://doi.org/10.1590/0037-8682-0038-2023

15.

Brazilian South-South Scientific Collaboration and The Sustainable Development Goals
Facebook Twitter

Otras redes sociales
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Otras redes

Métrica
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

MCMANUS, CONCEPTA

; NEVES, ABILIO AFONSO B.

; SCHLEICHER, RAFAEL T.

; CASTRO, HENRIQUE CARLOS O. DE

; PIMENTEL, FELIPE

; PIMENTEL, DANIEL

; FINAN, TIMOTHY JOSEPH

Anais da Academia Brasileira de Ciências

Métricas del periódico
- Sobre o periódico
- SciELO Analytics

2023, Volumen 95 Supl. 2 elocation e20230492

Resumen: En | Texto: En | PDF: En

Abstract We look at Brazilian collaboration in Scientific papers based on SciVal and Incites regarding the Sustainable Development Goals (SDGs) of the United Nations. Data were collected from InCites® and SciVal® (2012-2021). Groups of Global South countries were formed (ASEAN, Asia, Africa, BRICS, Caribbean, Central and Latin America). Analyses included Cluster (Author position, impact/citations, open access, journal quartil), principal component, path and analysis of variance to see the effect of region and SDGs in Brazilian publishing. Scopus data were analysed in Vosviewer® for creating country networks through publication, citation and bibliographic coupling, as well as keyword analysis. SDG 3 (Good Health and Well-Being) dominates all Brazilian scientific collaborations with the various country groups. While gender equality shows greater importance in ASEAN and African countries, Life Below Water (SDG14), on Land (SDG15), and Climate Action (SDG13), are important in all regions. SDGs 1, 8, 10, 12, and 16 show less importance in this collaboration overall. Brazil is relatively more active in Zero Hunger (SDG2) and Life on Land (SDG15) than worldwide. Brazil South-South collaboration in published documents shows higher impact than North South in some areas. Collaboration priorities vary by region and triangulation with countries is high depending on language and region.

https://doi.org/10.1590/0001-3765202320230492

Mostrar

itens por página

Página de 25 Próxima

Seleccione uno o más resultados

Todos Ordem alfabética

Resultados

Gráfico comparativo Descargar CSV

Visualizar estadísticas de

Enviar resultado

E-mail do(s) destinatário(s)*

Utilize ; (punto y coma) para más de un correo.

Enviar por correo-e

Esta página

Registros seleccionados

Todas las referencias (max. 300)

Su email

Asunto

Comentarios

Formato de exportación:

RIS (para EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citación

CSV (para Excel, etc)

Exportar:

Esta página

Itens seleccionados

Todas las referencias (max. 2000)

Sem resultados

No se encontraron documentos para su búsqueda

Glosario y ayuda para la búsqueda

Ud. puede enriquecer su búsqueda de una forma muy sencilla. Use los índices de búsqueda combinados con los conectores (AND u OR) para especificar su busca.

Por ejemplo, si desea buscar artículos acerca de
casos de dengue en el Brasil en 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

A continuación se muestra la lista completa de los índices de búsqueda que se pueden utilizar:

Cód. del Índice	Elemento
ti	título del articulo
au	autor
kw	palabras clave del artículo
subject	asunto (palabras del título, resumen y palabras clave)
ab	resumen
ta	título abreviado de la revista (ej. Cad. Saúde Pública)
journal_title	título completo de la revista (ej. Cadernos de Saúde Pública)
la	código de idioma de publicación (ej. pt - Portugués, es - Español)
type	tipo de documento
pid	identificador de la publicación
publication_year	año de publicación del artículo
sponsor	financiador
aff_country	código del país de la afiliación del autor
aff_institution	institución de filiación del autor
volume	volumen del artículo
issue	número del artículo
elocation	elocation
doi	número DOI
issn	ISSN de la revista
in	código de la colección SciELO (ej. scl - Brasil, col - Colômbia)
use_license	código de licencia de uso del artículo

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

Todo el contenido de este sitio www.scielo.br, excepto dónde está identificado, está bajo una Licencia de Atribución Creative Commons.
sepa más »