3,655 research outputs found

    AS REDES SOCIAIS ON-LINE E A ORALIDADE COMO TRILHAS DE COMUNICAÇÃO PARA A PRODUÇÃO E REPRODUÇÃO DO CONHECIMENTO

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    This article theoretically contextualizes orality and online social networks together with the production and reproduction of traditional knowledge from traditional communities. Fundamentally, historical approaches were explored by the anthropological and sociological areas to describe the communicational aspects in question, which allows horizontally to present a discussion on the relevance of preserving the culture of traditional communities. In this sense, considerations are made about the level of importance of orality and social networks online in the community reality. The content presented here was extracted from the results of research at the master's level of the Communication and Society Course (PPGCOM / UFT) in the year 2020.Este artículo contextualiza teóricamente la oralidad y las redes sociales online junto con la producción y reproducción de conocimientos tradicionales de las comunidades tradicionales. Fundamentalmente, los enfoques históricos fueron explorados por las áreas antropológica y sociológica para describir los aspectos comunicacionales en cuestión, lo que permite presentar de manera horizontal una discusión sobre la relevancia de preservar la cultura de las comunidades tradicionales. En este sentido, se hacen consideraciones sobre el nivel de importancia de la oralidad y las redes sociales online en la realidad comunitaria. El contenido aquí presentado fue extraído de los resultados de la investigación a nivel de maestría del Curso de Comunicación y Sociedad (PPGCOM / UFT) en el año 2020.O presente artigo contextualiza teoricamente a oralidade e as redes sociais on-line junto à produção e reprodução de conhecimento tradicional de comunidades tradicionais. Permeou-se fundamentalmente, abordagens históricas pelas áreas antropológica e sociológica para descrever os aspectos comunicacionais em questão, o que permite horizontalmente apresentar uma  discussão sobre a relevância da preservação da cultura das comunidades tradicionais.   Neste sentido, faz-se considerações sobre o nivel de importância da oralidade e das redes sociais on-line na realidade comunitária. O conteúdo ora apresentado foi extraído dos resultadas de pesquisa de nível de mestrado do Curso de Comunicação e Sociedade (PPGCOM/UFT) do ano 2020

    ON-LINE SOCIAL NETWORKS AND ORALITY AS COMMUNICATION TRAILS FOR THE PRODUCTION AND REPRODUCTION OF KNOWLEDGE

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    This article theoretically contextualizes orality and online social networks together with the production and reproduction of traditional knowledge from traditional communities. Fundamentally, historical approaches were explored by the anthropological and sociological areas to describe the communicational aspects in question, which allows horizontally to present a discussion on the relevance of preserving the culture of traditional communities. In this sense, considerations are made about the level of importance of orality and social networks online in the community reality. The content presented here was extracted from the results of research at the master's level of the Communication and Society Course (PPGCOM / UFT) in the year 2020

    Herbicide Resistance in Brazil: Status, Impacts, and Future Challenges

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    Brazil is a large producer and exporter of crops in global terms. Weeds may be responsible for ~14% of crop losses, depending on the crop system. Herbicides occupy 58% of the Brazilian pesticide market; however, the continuous use of these products and the high selection pressure have led to the emergence of weeds resistant to herbicides. Today, there are 51 weed species reported as being resistant to herbicides in Brazil, of which 17 involves cross and multiple-resistance. Acetolactate synthase (ALS), acetyl coenzyme A carboxylase (ACCase) and 5-enolpiruvylshikimate-3-phosphate synthase (EPSPs) inhibitors are the herbicidal groups with the most resistance cases. Soybean, corn, rice, wheat and cotton present 30, 12, 10, 9 and 8 cases, respectively, occurring mainly in herbicide-resistant crop fields from the Southern and Central West regions of the country. To better understand the dimensions of herbicide resistance, in this chapter, we will explore the size of agricultural activity in Brazil, the pesticide market and the use of herbicides in the main crops. In addition, the agronomic, scientific-technical and economic aspects that have contributed, directly or indirectly, to the selection of resistant weeds will be discussed in order to have an overview of the economic impact of herbicide resistance management

    Resucitación Hemostática en el Choque Hemorrágico Traumático: Relato de Caso

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    ResumenJustificativa y objetivos: El objetivo de este artículo es relatar un caso en que la estrategia damage control (control de daños [RDC]) con resucitación hemostática, fue usada con éxito en paciente politraumatizada con choque hemorrágico grave.Relato de caso: Paciente de 32 años, con choque hemorrágico grave por politraumatismo con fractura de cadera, que evolucionó con acidosis, coagulopatía e hipotermia. Durante la resucitación volémica, la paciente recibió transfusión de hemocomponentes a una razón de PFC/CP/CH de 1:1:1. Evolucionó en el período intraoperatorio, con una mejoría de los parámetros perfusionales y no necesitó fármacos vasoactivos. Al término de la operación, la paciente fue derivada a la unidad de cuidados intensivos y tuvo su alta al séptimo día del postoperatorio.Conclusiones: La terapéutica ideal del choque hemorrágico traumático todavía no ha quedado establecida, pero la rapidez en el control de la hemorragia y del rescate perfusional, junto con protocolos terapéuticos bien definidos, sientan las bases para evitar la progresión de la coagulopatía y la refractariedad del choque

    Use of cerebrospinal fluid CXCL13 concentration for diagnosis and monitoring of neurosyphilis: a three-case report

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    Introduction: Previous retrospective studies have demonstrated that the concentration of chemokine ligand CXCL13 in cerebrospinal fluid (CSF-CXCL13) is a promising biomarker in the diagnosis of neurosyphilis and, additionally, in the monitoring of therapeutic efficacy. Objective: To describe three cases of patients with neurosyphilis (NS) treated at Hospital Universitário Gaffrée e Guinle, in Rio de Janeiro, Brazil, with suspected active syphilis with neurological symptoms. Case report: Three patients from Rio de Janeiro, Brazil, were investigated for symptomatic NS. The concentration of CSF-CXCL13 was prospectively performed by enzyme-linked immunosorbent assay (ELISA) in all participants at baseline and in follow-up visits at 3 months after therapy. CSF-CXCL13 concentrations were significantly higher in all three patients with established NS. The CSF-CXCL13 concentrations decreased after 3 months of therapy compared to baseline in all cases reported. The added high concentration of CSF-CXCL13 plus CSF-TPHA reactivity above 1:40 titer agreed with the diagnosis of NS in 100% of the cases. Conclusion: In this case series, we present three cases of NS diagnosed using CXCL13 in CSF as a complementary test. These case series suggest that the clinical use of CSF-CXCL13 is useful as a supplementary biomarker for NS and for monitoring the effectiveness of NS therapy, especially in patients with nonreactive CSF-VDRL, excluding other neurologic diseases

    Benghal dayflower control with different glyphosate formulations

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    A trapoeraba (Commelina benghalensis L.) é uma planta daninha que infesta facilmente áreas agrícolas devido à suas características de agressividade associadas aos aspectos reprodutivos da espécie. Um dos aspectos importantes desta planta apresentar é sua tolerância ao herbicida glyphosate. Um experimento em ambiente protegido foi realizado para verificar os efeitos de diferentes formulações e produtos comerciais do herbicida glyphosate no controle da trapoeraba. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repetições. As plantas foram cultivadas em vasos preenchido com oito litros de substrato cada, composto por solo, areia e esterco de curral curtido até atingiram o estádio desenvolvimento de crescimento do segundo ramo, quando aplicaram-se os seguintes produtos e suas respectivas formulações comerciais: Roundup Original® – sal de isopropilamina; Trop® – sal de isopropilamina; Roundup WG® – sal de amônio; Zapp QI® – sal de potássio; Roundup Transorb R® = sal de potássio e Crucial® – sal de isopropilamina + sal de potássio. A intoxicação das plantas de trapoeraba foi avaliada visualmente aos 7, 14 e 21 dias após a aplicação do produtos, e a área foliar, matéria seca das folhas, matéria seca do caule, matéria seca da raiz e matéria seca total aos 21 dias após a aplicação. Os tratamentos mostraram diferenças significativa na intoxicação das plantas após 14 dias da aplicação e aos 21 dias contatou-se que os produtos Roundup WG® e Crucial® foram os mais tóxicos às plantas. Os produtos Roundup WG® e Crucial® foram destacados com maiores reduções na matéria seca das folhas, do caule e a total das plantas. No geral, a trapoeraba não foi eficientemente controlada pelos produtos nas doses testadas e/ou com aplicação logo após a emissão do segundo ramo da planta daninha. Entre as formulações comerciais ou produtos, destaca-se o sal de amônio – Roundup WG® e a mistura sal de isopropilamina com sal de potássio – Crucial® com eficiência superior no controle da planta daninha. Benghal dayflower (Commelina benghalensis L.) is a weed plant that easily infests agricultural areas due to its aggressive characteristics associated with reproductive aspects of the species. One important aspect of this plant is presenting its tolerance to the glyphosate. An experiment in greenhouse was conducted to verify the effects of different formulations and commercial products of glyphosate in controlling benghal dayflower. The experimental design was completely randomized, with four replications. The plants were grown in pots filled with eight liters of substrate each, consisting of soil, sand and tanned cattle manure until they have reached the stage of development of the second growth sector, when the following products and their commercial formulations were applied: Roundup Original® – isopropylamine salt; Trop® – isopropylamine salt; Roundup WG® – ammonium salt; Zapp QI® – potassium salt; Roundup Transorb R® = potassium salt and Crucial® – isopropylamine salt + potassium salt. The intoxication of benghal dayflower plants was visually assessed at 7, 14 and 21 days after application of the products, and leaf area, dry matter of leaves, dry matter of the stem, dry matter of root and total dry matter at 21 days after application. The treatments show significant differences in the toxicity of the plants after 14 days of application, and at 21 days it was found that the products Roundup WG® and Crucial® were more toxic to plants. The products Roundup WG® and Crucial® were highlighted with greater reductions in dry matter of the leaves, stem and total plant. In general, the benghal dayflower has not been effectively controlled by the products at the doses tested and/or by the application after the emission of the second branch of weed. Among the commercial formulations or products, the ammonium salt is highlighted – Roundup WG® and the mixture of isopropylamine salt with potassium salt – Crucial® presents higher efficiency in weed control.

    Conjoined twins: an experience of a tertiary hospital in Southeast Brazil

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    OBJETIVO: analisar a ocorrência de gemelaridade conjugada em um hospital universitário de referência terciária em perinatologia durante 25 anos (janeiro de 1982 e janeiro de 2007) e descrever a separação bem sucedida de um dos pares. MÉTODOS: para este fim, utilizamos retrospectivamente o banco de dados do Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo, obtendo o número de pares de gêmeos conjugados, sua frequência, classificação, gênero, forma de resolução da gravidez, tentativa de separação cirúrgica, diagnóstico pré-natal e sobrevida. RESULTADOS: detectamos 14 pares de gêmeos conjugados (1/22.284 nascidos vivos e 1/90 pares de gêmeos nascidos vivos) nascidos neste período (seis masculinos, sete femininos e um com sexo indeterminado). O diagnóstico pré-natal foi realizado em todos os gêmeos, e os nascimentos ocorreram por cesariana. A separação só foi possível em um dos pares, que sobrevivem em ótimas condições de saúde após oito anos. Dos 13 restantes, dez morreram no mesmo dia do nascimento e três sobreviveram apenas alguns meses (menos de um ano). CONCLUSÃO: apesar de este estudo evidenciar um número anormalmente alto de gêmeos conjugados, trata-se de um fenômeno raro, de prognóstico perinatal reservado e dependente do compartilhamento de órgãos entre os gêmeos e malformações associadas, em especial relacionadas ao coração dos fetos. Devido ao mau prognóstico dos pares e do comprometimento reprodutivo materno pela necessidade de realização de cesariana com grandes incisões uterinas, propomos que, com base nestes números, seja solicitada a interrupção precoce destas gestações, como ocorre com outras doenças fetais incompatíveis com a sobrevida extrauterina. Desta forma, a confirmação diagnóstica e a resolução da gravidez de gêmeos conjugados deve ser realizada em centro de atendimento terciário tanto obstétrico quanto perinatal, e a autorização para a interrupção da gestação obtida por via judicial.PURPOSE: to analyze the occurrence of conjoined twins at a tertiary perinatology reference university hospital over a period of 25 years (January 1982 to January 2007) and to describe the successful separation of one of the pairs. METHODS: we consulted retrospectively the database of the University Hospital of the Medical School of Ribeirão Preto, University of São Paulo, Brazil, in order to determine the number of pairs of conjoined twins, their frequency, classification, gender, type of pregnancy resolution, attempted surgical separation, prenatal diagnosis and survival. RESULTS: we detected 14 pairs of conjoined twins (1/22,284 live births and 1/90 pairs of twin live births) born during this period (six males, seven females and one of indeterminate sex). The prenatal diagnosis was performed in all twins and all births were accomplished by cesarean section. The separation was possible in only one pair, which survives in excellent health conditions after eight years. Of the remaining 13, ten died on the day of birth and three survived only a few months (less than one year). CONCLUSION: Although our study revealed an abnormally high number of conjoined twins, this is a rare phenomenon, with a poor perinatal prognosis depending on the organs shared by the twins and associated malformations, especially those related to the fetal heart. Due to the poor prognosis of these pairs and to the maternal reproductive impairment caused by the need to perform body cesareans, we suggest that, based on these numbers, early interruption of these pregnancies be legally granted, as in the case of other diseases incompatible with fetal survival outside the uterus. Thus, the confirmation of a diagnosis of conjoined twins and the resolution of pregnancy should be performed at a tertiary obstetric and perinatal care center, and an authorization for the interruption of pregnancy should be obtained by judicial means
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