69 research outputs found

    Efeito dos investimentos nos fundamentos e na reação de mercado de empresas brasileiras pré-operacionais e operacionais do período de 2006 a 2012

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    This paper provides evidence on the market reaction to corporate investment decisions whose shareholder value is largely attributed to growth options. The exploratory research raised pre-operational companies and their operational pairs on the same economy segments. It had the purpose of investigating the existence of statistical differentiation from financial indicators that reflect the installed assets and growth assets, and then study the market reaction to changes in fixed assets as a signaling element about investment decisions. The formation process of operational assets and shareholder value almost exclusively dependent on asset growth stands out in the pre-operational companies. As a result, differentiation tests confirmed that the pre-operational companies had their value especially derived on growth options. The market reaction was particularly bigger in pre-operational companies with abnormal negative stock returns, while the operational companies had positive returns, which may indicate that the quality of the investment is judged based on the financial disclosure. Additionally, operational companies' investors await the disclosure to adjust their prices. We conclude that the results are consistent with the empirical evidence and the participants in financial markets to long-term capital formation investments should give that special attention.O trabalho fornece evidências sobre a reação do mercado às decisões de investimento de empresas cujo valor acionário é predominantemente atribuído às opções de crescimento. A pesquisa exploratória levantou empresas pré-operacionais e seus pares operacionais dos mesmos segmentos da economia. Investigou-se a existência de diferenciação estatística a partir de indicadores financeiros que refletissem os ativos instalados e os ativos de crescimento para, em seguida, estudar a reação do mercado às variações do ativo não circulante como elemento de sinalização acerca das decisões de investimento. Destaca-se nas empresas pré-operacionais o processo de formação do ativo operacional e o valor acionário quase exclusivamente dependente dos ativos de crescimento. Como resultado, os testes de diferenciação confirmaram que as empresas pré-operacionais têm seu valor especialmente derivado das opções de crescimento. A reação do mercado foi maior nas empresas pré-operacionais, apresentando retornos anormais negativos, enquanto que nas operacionais tais retornos foram positivos, o que pode indicar que a qualidade do investimento é julgada a partir da divulgação financeira. Ademais, a divulgação é aguardada pelos investidores de empresas operacionais para ajustarem seus preços. Conclui-se que os resultados estão de acordo com as evidências empíricas e que atenção especial deva ser dada aos investimentos de formação de capital de longo prazo pelos participantes dos mercados financeiros.El trabajo proporciona evidencia sobre la reacción del mercado en las decisiones de inversión de las empresas, que el valor del accionista se atribuye en gran medida a opciones de crecimiento. La investigación exploratoria planteó empresas pre-operacionales y sus pares operativos en los mismos segmentos de la economía. Se investigó la existencia de diferenciación estadística de indicadores financieros que reflejan los activos instalados y activos de crecimiento para luego estudiar la reacción del mercado a los cambios en activos fijos como elemento de señalización sobre las decisiones de inversión. Se destaca en las empresas pre-operacionales del proceso de formación de los activos operativos y el valor del accionista depende casi exclusivamente en el crecimiento de los activos. Las pruebas confirmaron que el valor de las empresas pre-operacionales se deriva especialmente de las opciones de crecimiento. La reacción del mercado fue particularmente alto en las empresas pre-operacionales con rendimientos de las acciones negativas anormales, mientras que los otros tuvieron resultados positivos, lo que puede indicar que la calidad de la inversión se juzga basado en la divulgación de información financiera. Y la revelación es esperada por los inversores para ajustar sus precios. Los resultados son consistentes con la evidencia empírica y la atención especial se debe dar por los participantes en los mercados financieros a las inversiones de formación de capital a largo plazo

    CONSIDERAÇÕES SOBRE A RESSIGNIFICAÇÃO HERMENÊUTICO-FILOSÓFICA DA EXPERIÊNCIA FORMATIVA: Gadamer e o caráter ético e estético da educação

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    Este trabalho propõe uma reflexão sobre a natureza humana a partir de uma perspectiva hermenêutica, relacionando-a com a Ética e a Estética nos processos que permeiam a educação enquanto experiência de formação do humano. A tese do filósofo alemão Hans-Georg Gadamer, de que educar é educar-se, não só nos remete a uma reflexão sobre a natureza humana, como está na centralidade do problema formativo do mesmo. Problema esse que nas vias de solução deixa de ser gnosiológico ou mesmo epistemológico, passando a ser de caráter ontológico, ou seja, como compreendemos, levando em consideração que a noção de sujeito não mais está assentada no cogito cartesiano e nem nas faculdades do juízo kantiana. Entretanto, podemos observar que a maioria das teorias pedagógicas encontra sua gênese estruturante nessas noções já desconstruídas de sujeito, o que acentua a crise na educação. O sujeito, para Gadamer, agora é o Dasein, herdado de Heidegger e que, em sua visão, expressa melhor anatureza humana. Surge então a necessidade de refletir sobre essa natureza, tendo em vista a proposta de ressignificação da experiência formativa do humano pela educação, a partir de uma perspectiva ontológica, levando em conta a experiência estética como articulação para uma educação Ético-Estética.Palavras-chave: Hermenêutica. Educação. Formação. Ética. Estética.CONSIDERATIONS ON HERMENEUTIC -PHILOSOPHICAL RESIGNIFICATION OF FORMATIVE EXPERIENCE: Gadamer and the ethical and aesthetic character of educationAbstract: This paper is a reflection claim about human nature from a hermeneutic perspective, relating it to the Ethics and Aesthetics in the processes that underlie education while training the human experience. The thesis of the German philosopher Hans-Georg Gadamer, that education is to educate yourself not only leads us to a reflection on human nature, as is the centrality of the problem of the same formation. This problem in ways that solution no longer gnosiologic epistemological or even becoming the ontological character, that is, as we understand, considering that the notion of subject is no longer seated in the Cartesian cogito nor the faculties of judgment Kant. However, we can observe that most pedagogical theories finds its genesis structuring these notions already deconstructed the subject, which accentuates the crisis in education. The subject, for Gadamer, is now Dasein, Heidegger's legacy and that, in his view, best expressed human nature. Then comes the need to reflect on this the crisis in education. The subject, for Gadamer, is now Dasein, Heidegger's legacy and that, in his view, best expressed human nature. Then comes the need to reflect on this nature, in view of the proposed redefinition of the human formative experience for education, from an ontological perspective, taking into account the aesthetic experience as an education articulation for Ethical and Aesthetic.Keywords: Hermeneutics. Education. Training. Ethics. Aesthetics.CONSIDERACIONES SOBRE LA REDEFINICIÓN DE LA HERMENÉUTICA FILOSÓFICA-FORMATIVO EXPERIENCIA: Gadamer y la educación ética y estéticaResumen: Este trabajo tiene la intención de hacer una reflexión sobre la naturaleza humana desde una perspectiva hermenéutica, relacionándolo con la ética y la estética en el proceso de educación que impregnan durante la formación de la experiencia humana. La tesis del filósofo alemán Hans-Georg Gadamer, que la educación es educarse a si mismo no sólo nos lleva a una reflexión sobre la naturaleza humana, como está en el centro del problema de la misma formación. este problema de manera que lasolución deja de ser gnosiológica o mismo epistemológica pasando a convertirse en carácter ontológico, es decir, a nuestro entender, teniendo en cuenta que la noción de sujeto ya no está sentado en el cogito cartesiano ni las facultades del juicio Kant. Sin embargo, podemos observar que la mayoría de las teorías pedagógicas encuentra su génesis estructural en estas nociones ya desconstruídas de sujeto, lo que acentúa la crisis en la educación. El sujeto, para Gadamer, es ahora Dasein, el legado de Heidegger yque, a su juício, representa mejor la naturaleza humana. Luego viene la necesidad de reflexionar sobre esta naturaleza, a la vista de la propuesta de redefinición de la experiencia formativa del humano por la educación, desde el punto de vista ontológico, teniendo en cuenta la experiencia estética como una articulación de la educación ética y estética.Palabras clave: Hermenéutica. Educación. Formación. Ética. Estétic

    Competências do enfermeiro na parada cardiorrespiratória

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    The aim was to identify, in the light of literature, the main competencies of nurses in the face of cardiorespiratory arrest. This is an integrative review of the literature, data were collected through the databases Higher Education Personnel Improvement Portal and Scientific Electronic Library Online, as they are electronic libraries/databases that bring together national and international studies of scientific relevance. The inclusion criteria were studies published in full between 2017 and 2022, in Portuguese, theses, dissertations and articles not consistent with the objective of the research were excluded. Nine articles were analyzed that met the inclusion criteria, among them nine were carried out in Brazil, four published in 2018, one in 2019 and four in 2021. After reading the full in selected studies, representative categories were chosen, namely: knowledge, communication, skills, attitudes, and values. Cardiovascular diseases occupy the first place in the mortality ranking in the world, the nurse is an essential professional in the pre-hospital urgency and emergency team, playing an extremely important role in the assistance provided based on skills.Objetivou-se identificar a luz da literatura as principais competências do enfermeiro frente à parada cardiorrespiratória. Trata-se de uma revisão integrativa da literatura, os dados foram coletados atraves das bases de dados Portal de Aperfeiçoamento de Pessoal de Nível Superior e Scientific Electronic Library Online, pois se tratam de bibliotecas eletrônicas/bases de dados que reúnem estudos nacionais e internacionais de relevância cientifica. Os critérios de inclusão foram estudos publicados na integra entre 2017 e 2022, em português, foram excluidos teses, dissertação e artigos não condizentes com o objetivo da pesquisa. Analisou-se nove artigos que atenderam aos critérios de inclusão, dentre eles nove foram realizados no Brasil, quatro  publicados no ano de 2018, um em 2019 e quatro em 2021. Após a leitura na integra dos estudos selecionados, foram elecadas categorias representativas a saber: o conhecimento, a comunicação, as habilidades, atitudes e valores. As doenças cardiovasculares acupam o primeiro lugar no raking de mortalidade no mundo, o enfermeiro é um profissional indispensável na equipe de urgência e emergência pré-hospitalar possuindo um papel de extrema relevancia na assistencia prestada pautada em competências

    Electricity cost of rapid filter backwashing in a water treatment plant

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    O estudo teve por objetivo determinar a despesa com energia elétrica na lavagem de filtro rápido de uma estação de tratamento de água (ETA), cuja vazão é de 45 L/s. Para isso, foi realizado monitoramento hidroenergético para a análise do desempenho no bombeamento de água de lavagem. Adicionalmente, foi monitorada a qualidade da água do efluente de três lavagens no filtro 4 e realizado um levantamento das informações tarifárias de energia elétrica da unidade de tratamento. Com os resultados obtidos, observou-se que os valores de turbidez do efluente, ao final das três lavagens, no caso, 31, 30 e 27 UNT, não atingiram os limites mínimos recomendados na literatura técnica, que é de, pelo menos, 15 UNT. Foi observada também a dificuldade de prolongamento do tempo de lavagem, a fim de alcançar o padrão da literatura, pois o reservatório elevado (REL) de água de lavagem (água tratada), também alimenta a rede de distribuição, e poderia esvaziar completamente. Levando em conta essas limitações e a qualidade final do efluente de lavagem, observou-se que as lavagens devem ser finalizadas aos 380 segundos (6,3 minutos), tempo que consome um volume de 23,36 m3/lavagem. A despesa de água de lavagem foi calculada em 1,36 R/m3,oqueresultounovalorde31,83R/m3, o que resultou no valor de 31,83 R/lavagem. Para as lavagens de todos os filtros da estação, as despesas foram de 254,64 R/dia,7.639,20R/dia, 7.639,20 R/mês e 91.670,4 R/ano.Essesvaloressa~oconsideradoselevadosparaosistemadetratamentoestudado.Thispaperaimstodeterminethecostofelectricityforrapidfilterbackwashingproceduresatwatertreatmentplants,whoseflowrateis45L/s.Flowandelectricityconsumptionweremonitoredinordertoanalyzetheperformanceofthepumpingsystems.Additionally,theeffluentwaterqualityofthreewasheswasmonitoredinfilter4andasurveyoftheelectricityfaredataofthetreatmentunitwascarriedout.Withtheresultsobtained,itwasobservedthattheeffluentturbidityvaluesattheendofthethreewashes,inthiscase31,30,and27NTU,didnotreachtheminimumvaluesrecommendedinthetechnicalliterature,whichisatleast15NTU.Itwasalsoobservedtheimpossibilityofprolongingthebackwashingtimeinordertoreachthestandardoftheliterature,duetothedoublefunctionoftheelevatedwashingwaterreservoir(treatedwater),whosemainpurposeistoprovidetreatedwatertothewaterdistributionnetwork.Takingintoaccounttheselimitationsandthefinalqualityofthewasheffluent,itwasobservedthatthedurationofbackwashingproceduresshouldbearound380seconds(6.3minutes),consuming23.36m3/wash.ThebackwashingprocedurecostwasestimatedatR/ano. Esses valores são considerados elevados para o sistema de tratamento estudado.This paper aims to determine the cost of electricity for rapid filter backwashing procedures at water treatment plants, whose flow rate is 45 L/s. Flow and electricity consumption were monitored in order to analyze the performance of the pumping systems. Additionally, the effluent water quality of three washes was monitored in filter 4 and a survey of the electricity fare data of the treatment unit was carried out. With the results obtained, it was observed that the effluent turbidity values at the end of the three washes, in this case 31, 30, and 27 NTU, did not reach the minimum values recommended in the technical literature, which is at least 15 NTU. It was also observed the impossibility of prolonging the backwashing time in order to reach the standard of the literature, due to the double function of the elevated washing water reservoir (treated water), whose main purpose is to provide treated water to the water distribution network. Taking into account these limitations and the final quality of the wash effluent, it was observed that the duration of backwashing procedures should be around 380 seconds (6.3 minutes), consuming 23.36 m3/wash. The backwashing procedure cost was estimated at R 1.36/m3, which resulted in R31.83/wash.Consideringthewholefiltrationunit,thebackwashingprocedurecostwasR 31.83/wash. Considering the whole filtration unit, the backwashing procedure cost was R 254.64/day, R7,639.20/month,andR 7,639.20/month, and R 91,670.4/year. This value can be classified as too expensive considering the treatment plant studied

    Resíduo agroindustrial da carnaúba como fonte de volumoso para a terminação de ovinos

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    The objective of this work was to evaluate the effects of ammonization with different levels of urea and the use of soybean grains as a urease source, for the improving of the chemical composition of carnaúba (Copernicia prunifera) agroindustrial residue (BC). The levels of urea were 0, 2.5, 5, 7.5 and 10% in relation to the percentage of total dry matter of BC and the levels of toasted soybean grains were 0 and 20%. Evaluations were also made for forage intake and performance of confined sheep subjected to diets with increasing levels of replacement of Tifton 85 grass (Cynodon spp.) hay (FT) by BC: 100% FT, 25% BC plus 75% FT, 50% BC plus 50% FT, 75% BC plus 25% FT, and 100% BC. Thirty crossbred 80-day old weaned sheep with 17 kg initial average weight were used. Crude protein in the forage increased with the increasing doses of urea. Increases were also observed for neutral detergent fiber and cellulose contents and reductions were observed for roughage digestibility. The highest daily intake of dry matter, organic matter, crude protein, ethereal extract and neutral detergent fiber were observed in animals fed only FT. Animal performance decreased with increase of BC in the diet.O objetivo deste trabalho foi avaliar os efeitos da amonização com diferentes níveis de ureia e do uso de grãos de soja como fonte de urease, na melhoria da composição químico-bromatológica do resíduo agroindustrial da carnaúba (Copernicia prunifera), conhecido como bagana (BC). Os níveis de ureia utilizados foram 0, 2,5, 5, 7,5 e 10%, em relação à percentagem de matéria seca total da BC; e os níveis de grãos de soja tostados foram de 0 e 20%. Foram também avaliados o consumo de ração e o desempenho de cordeiros confinados, submetidos a dietas com níveis crescentes de substituição de feno de capim Tifton 85 (Cynodon spp.) (FT) pela BC: 100 FT; 25% BC e 75% FT; 50% BC e 50% FT; 75% BC e 25% FT; 100% BC. Foram utilizados 30 cordeiros mestiços inteiros, recém-desmamados, com peso corporal médio de 17 kg e idade média em torno de 80 dias. Os teores de proteína bruta na forragem aumentaram com o aumento das dosagens de ureia. Foram observados, ainda, aumentos nos teores de fibra em detergente neutro e celulose e redução da digestibilidade da BC. Os consumos diários mais elevados de matéria seca, matéria orgânica, proteína bruta, extrato etéreo e fibra em detergente neutro foram observados nos animais que receberam apenas FT como volumoso. O desempenho animal foi reduzido com o aumento da BC na dieta

    Environmental interactions are regulated by temperature in Burkholderia seminalis TC3.4.2R3.

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    Burkholderia seminalis strain TC3.4.2R3 is an endophytic bacterium isolated from sugarcane roots that produces antimicrobial compounds, facilitating its ability to act as a biocontrol agent against phytopathogenic bacteria. In this study, we investigated the thermoregulation of B. seminalis TC3.4.2R3 at 28 °C (environmental stimulus) and 37 °C (host-associated stimulus) at the transcriptional and phenotypic levels. The production of biofilms and exopolysaccharides such as capsular polysaccharides and the biocontrol of phytopathogenic fungi were enhanced at 28 °C. At 37 °C, several metabolic pathways were activated, particularly those implicated in energy production, stress responses and the biosynthesis of transporters. Motility, growth and virulence in the Galleria mellonella larvae infection model were more significant at 37 °C. Our data suggest that the regulation of capsule expression could be important in virulence against G. mellonella larvae at 37 °C. In contrast, B. seminalis TC3.4.2R3 failed to cause death in infected BALB/c mice, even at an infective dose of 107 CFU.mL-1. We conclude that temperature drives the regulation of gene expression in B. seminalis during its interactions with the environment

    Production and Perception of Agricultural Reuse in a Rural Community

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    There is a growing competition among the various sectors of society in the world for the use of water where agriculture stands out as a major consumer. Since it is carried out in a controlled manner, irrigation with effluents from a Sewage Treatment Plant (STP) is a very attractive practice, as it allows a greater supply of water for nobler purposes. This work had the general objective of evaluating the perception of a rural community in the municipality of Pesqueira, Pernambuco, Brasil, in terms of consumption and production of products cultivated with the practice of agricultural reuse. The local population showed acceptance for the cultivation and consumption of products through agricultural reuse, above all, with reliable information on the appropriate quality of the effluents used for irrigation. In the estimated data, the same community had a potential of production of corn, beans and cotton in the order of 19.8 tons, 3.4 tons and 7.7 tons respectively, with the use of treated sewage in irrigation

    Anesthesia of Agoutis (Dasyprocta prymnolopha) with Dextroketamine and Midazolam

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     Background: Research has increasingly focused on wild animals, and this requires the use of chemical restraints that are safe for both the species and the team involved. Dextroketamine is the levorotatory ketamine isomer that has been used on domestic species as an alternative that is more potent and safer than the racemic form. Midazolam is a benzodiazepine that induces muscle relaxation and minimal cardiorespiratory changes. The purpose of this study was to determine whether a combination of dextroketamine and midazolam can be safely used for the chemical restraint of agoutis (Dasyprocta prymnolopha), and the effects of this protocol on physiological and anesthetic parameters. Materials, Methods & Results: This study was carried out under conditions similar to those found for wild animals in captivity or in zoos. A pre-evaluation was also made to compare the baseline values of this study with those of other studies on the same species. Nine healthy adult agoutis were used, weighing between 1.5 kg and 2 kg. All the parameters were evaluated and recorded before the drugs were applied, and this was considered the baseline moment (M0). The dextroketamine and midazolam combination was then administered intramuscularly, in the same syringe, in dosages of 15 mg/kg and 0.5 mg/kg, respectively. Successive evaluations were made every 10 min over a period of 40 min (M10, M20, M30 and M40). The latency stage of anesthesia, effective stage and recovery stage were observed. Heart rate (HR) and breathing frequency (f), body temperature (BT), systolic blood pressure (SBP), peripheral oxygen saturation (SpO2) and electrocardiogram were recorded. HR and SBP showed no significant difference between moments. Breathing frequency (f) showed a significant decline at M10 and M20 when compared to baseline values (P < 0.05). BT decreased from the moment the drugs were administered until the end of the experimental period, with a significant difference between M0 and M40, and M10 and M40 (P < 0.05). SpO2 decreased significantly at M10 and M20 when compared to baseline values (P < 0.01). There was no significant difference in the duration and amplitude of the P wave or in the duration of the QRS complex, QT interval and amplitude of the R wave. Regarding the PR interval, there was a significant difference only at M40 when compared to baseline values (P < 0.05). No arrhythmia was observed. An evaluation of the effects of anesthesia indicated that the animals had an average latency stage of 2 min, an effective stage of 87 min, and an average recovery stage of 111 min. Adverse effects observed during the anesthetic recovery period consisted of tearing, salivation, tongue protrusion, vocalization and chewing reflex. Discussion: The results indicated that the association of anesthetic drugs under study caused minimal changes in the animals’ physiological parameters, except for the breathing frequency (f), which declined considerably, resulting in a reduction in SpO2, which was compensated during the study. In addition, there was a rapid onset of restraint and a satisfactory duration. Thus, from the cardiorespiratory standpoint, the combination of dextroketamine and midazolam in the doses used provides a safe anesthetic protocol for agoutis (Dasyprocta prymnolopha) and can be used for the chemical restraint of these animals for the performance of non-invasive and short-term procedures

    METÁSTASE DE ADENOCARCINOMA EM GLÂNDULA APÓCRINA EM UM CÃO

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    The apocrine gland adenocarcinoma is rarely reported in dogs, common in dogs and having no sex predisposition. They usually present a single lump reaching up 10 cm in diameter. In dogs, the thoracic and pelvic limbs are the common sites. Generally, the apocrine gland neoplasms have a benign behavior; metastasis can occur through lymphatic and blood dissemination when they are malignant. We report the case of a 16-year-old, uncastrated, male Poodle dog. The client reported a lesion in the right ear that had purulent and bloody discharge for 30 days, however, on physical examination, a small mass was observed in the right thoracic limb together with a reactive right subscapular lymph node. Samples were collected from both sites for cytological examination, which had an inconclusive result. Nodulectomy was performed on the right thoracic limb, subscapular lyphadenectomy and auricular nodulectomy. The histopathological analysis revealed an apocrine gland adenocarcinoma in the thoracic limb with metastasis to the cervical lymph node and sebaceous epithelioma in the auricular lesion. The client refused the chemotherapy protocol proposed and, the patient died 30 days after the surgical procedure.O adenocarcinoma de glândula apócrina raramente é relatado em cães, acometendo principalmente animais idosos e não tendo propensão entre machos ou fêmeas. Habitualmente, apresentam-se por nódulos únicos, podendo chegar até 10cm de diâmetro e, nos cães, os membros torácicos e pélvicos são os sítios de predileção. Geralmente, as neoplasias de glândulas apócrinas têm comportamento benigno, quando estas apresentam potencial maligno observam-se recidivas através de disseminação linfática e sanguínea. Relatou-se o caso de um cão macho, da raça Poodle, de 16 anos de idade, não castrado. A queixa principal referiu-se a uma lesão em orelha direita que apresentava secreção sanguinopurulenta há 30 dias, porém, ao exame físico, foi observado pequena massa no membro torácico direito, juntamente com linfonodo subescapular direito reativo. Foi colhido material de ambos os locais para exame citológico, o qual teve um resultado inconclusivo. Foi realizada nodulectomia em membro torácico direito, linfadenectomia subescapular e nodulectomia auricular. O material foi enviado para análise histopatológica. O diagnóstico foi de adenocarcinoma de glândula apócrina em membro torácico com metástase para linfonodo pré-escapular e de epitelioma sebáceo na lesão auricular. A tutora não aderiu ao protocolo quimioterápico proposto e o paciente veio a óbito após 30 dias do procedimento cirúrgico
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