32 research outputs found

    Critical Theory and Intellectual History in José Sazbón

    Get PDF
    La intervención teórico-política de José Sazbón (1937-2008) puede ser entendida como un esfuerzo por articular historia intelectual y teoría crítica. Por un lado, nos ofrece una historia intelectual de la teoría crítica que busca hacer patente para la propia teoría crítica las condiciones históricas de sus posibilidades y dificultades. Por otro lado, plantea una teoría crítica de la historiografía que exige a esta última una orientación política normativa en la que anclar el sentido a su labor. En su sistemática articulación, ambas orientaciones confluyen en la formulación de un amplio programa, aún vigente, de historia crítica del marxismo occidental.The theoretical-political intervention of José Sazbón (1937-2008) can be understood as an effort to connect intellectual history and critical theory. On one hand, it offers an intellectual history of critical theory that seeks to make obvious the historical conditions of its possibilities and difficulties. On the other hand, it proposes a critical theory of historiography that demands from the latter a normative political orientation in which the meaning of its labor is anchored. In their systematic correlation, both orientations flow together to formulate a broad and still timely program of critical history for Western Marxism.Fil: Garcia Garcia, Luis Ignacio. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

    Experiência de 20 anos em adrenalectomia videolaparoscópica

    Get PDF
    Introdução: As operações na glândula adrenal são realizadas para determinados cânceres, todas as massas biologicamente ativas, metástases, massas com mais de 4-5 cm encontradas incidentalmente e hiperplasia adrenal primária. Métodos: Estudo transversal e descritivo. Foram analisados os prontuários dos pacientes submetidos a adrenalectomia videolaparoscópica entre agosto de 1994 e novembro de 2014. Resultados: Foram realizadas 146 adrenalectomias videolaparoscópicas. Em 134 casos, foi realizada com sucesso, mas em 12 casos (8,2%), o procedimento foi convertido. Foram 97 pacientes do sexo feminino e 49 do sexo masculino, com idade variando de 9 a 81 anos (média de 46,7 anos). Foram removidas 56 adrenais direitas, 75 esquerdas e 15 bilaterais. O tamanho médio das adrenais foi de 5,7 cm, variando de 0,9 a 15 cm. A mediana do tempo de internação hospitalar pós-operatória foi de 4,5 dias. A mediana do tempo de cirurgia foi de 144 minutos. Houve complicações em 22,5% dos casos (maiores – casos em que houve conversão para cirurgia aberta, necessidade de reinternação hospitalar e óbito– e menores), sendo 10,9% complicações intraoperatórias e 11,6% pós-operatórias. Apenas sete (4,7%) pacientes foram considerados complicações maiores. Conclusão: A cirurgia realizada em nosso serviço está de acordo com o descrito na literatura, com taxas aceitáveis de complicações, com motivos de conversão compatíveis e com as indicações totalmente aceitáveis e condizentes. A adrenalectomia videolaparoscópica é a cirurgia de escolha para patologias cirúrgicas da glândula adrenal, exceto em casos de carcinoma adrenal localmente invasivo com comprometimento de outras estruturas.Introduction: Adrenal gland surgery is performed for some types of cancer, all biologically active masses, metastases, masses larger than 4-5 cm found incidentally, and primary adrenal hyperplasia. Methods: A cross-sectional, descriptive study. Medical records of patients who underwent laparoscopic adrenalectomy from August 1994 to November 2014 were analyzed. Results: A total of 146 laparoscopic adrenalectomies were performed. In 134 cases, laparoscopic adrenalectomy was successfully performed, but in 12 cases (8.2%), the procedure was converted. There were 97 female patients and 49 male patients. Fifty-six right adrenal glands and 75 left adrenal glands were removed, and 15 patients had both of them removed. The average size of adrenal glands was 5.7 cm, ranging from 0.9 to 1.5 cm. The median length of postoperative hospital stay was 4.5 days, ranging from 1 to 55 days. The median surgery time was 144 minutes. There were 22.5% of complications (major ones – cases that required conversion to open surgery, hospital readmission, and death – and minor ones), of which 10.9% were intraoperative and 11.6% were postoperative. Only seven (4.7%) patients were classified as having major complications. Conclusion: The surgery performed in our department is consistent with the literature, showing acceptable rates of complications, compatible reasons for conversion, and completely acceptable and consistent indications. Laparoscopic adrenalectomy is the surgery of choice for diseases of the adrenal gland, except for locally invasive adrenal carcinoma compromising other structures

    ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

    Get PDF
    Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ

    Efeitos do cloreto de gadolínio no tratamento da pancreatite aguda experimental induzida por tauracolato de sódio em ratos

    Get PDF
    INTRODUÇÃO: Estudos experimentais sugerem que o uso de um bloqueador seletivo das células de Kupffer, cloreto de gadolínio, utilizado como pré-tratamento, 24 horas antes da indução da pancreatite, resulta na diminuição de mortalidade e da lesão pulmonar associada. OBJETIVO: Avaliar os efeitos do uso de cloreto de gadolínio como pré-tratamento e tratamento em um modelo experimental de pancreatite em ratos induzida por tauracolato de sódio a 3%. MÉTODOS: Ratos Wistar foram divididos em 5 grupos: grupo SF – controle com solução fisiológica intra-ductal e IV; grupo TS – controle com PA induzida por tauracolato de sódio a 3% e solução fisiológica a 0,9% IV; grupo GD – controle com SF intra-ductal e cloreto de gadolínio IV; grupo GDTS – pré-tratamento com GD (24h antes da indução da PA) e grupo TSGD – tratamento com GD (1h após a indução da PA). Após a indução da pancreatite foi realizado eutanásia em 24h. Dosagem sérica de amilase, transaminases e TNF-α; dosagem da atividade da MPO no tecido pulmonar; histologia pancreática e pulmonar. RESULTADOS: O número de animais mortos antes do término previsto do experimento foi significativamente maior no grupo TSGD (p=0,046). Os escores de pancreatite e de dano pulmonar foram mais elevados nos grupos que utilizaram tauracolato em comparação aos grupos com infusão intra-ductal de solução salina. Não houve diferenças nas demais variáveis estudadas na comparação entre os grupos TS; GDTS e TSGD. CONCLUSÕES: Não foram demonstrados benefícios com o uso de cloreto de gadolínio de forma profilática e terapêutica.BACKGROUND: Some experimental studies suggest that the use of a selective blocker of Kupffer cells, gadolinium chloride as a pre-treatment, used 24 hours before the induction of pancreatitis, results in the decrease of mortality and associated lung injury. OBJECTIVE: To evaluate the effects of the use of gadolinium chloride treatment before and after induction of acute pancreatitis with sodium taurocholate 3% in rats. METHODS: Wistar rats were divided into 5 groups: group SF - control with saline intraductal and IV, group TS - with AP control induced by sodium tauracholate to 3% and saline IV; group GD - control with saline intra-ductal and gadolinium chloride IV; group GDTS - pre-treatment with GD (24 hours before the induction of AP) and group TSGD - treatment with GD (1h after the induction of AP). Euthanasia was carried out in 24 hours after the induction of pancreatitis. Analysis was made in serum amylase, transaminases and TNF-α; determination of the MPO activity in lung tissue, lung and pancreatic histology. RESULTS: The number of dead animals before the end of the experiment was significantly higher in group TSGD (p = 0,046). The scores of pancreatitis and lung damage were higher in the groups who used sodium tauracholate compared to groups with intra-ductal infusion of saline solution. There were no differences in other variables studied in comparison between groups TS; GDTS and TSGD. CONCLUSIONS: In this study the benefits with the use of gadolinium chloride as a prophylactic and therapeutic drug were not demonstrated

    Efeitos do cloreto de gadolínio no tratamento da pancreatite aguda experimental induzida por tauracolato de sódio em ratos

    Get PDF
    INTRODUÇÃO: Estudos experimentais sugerem que o uso de um bloqueador seletivo das células de Kupffer, cloreto de gadolínio, utilizado como pré-tratamento, 24 horas antes da indução da pancreatite, resulta na diminuição de mortalidade e da lesão pulmonar associada. OBJETIVO: Avaliar os efeitos do uso de cloreto de gadolínio como pré-tratamento e tratamento em um modelo experimental de pancreatite em ratos induzida por tauracolato de sódio a 3%. MÉTODOS: Ratos Wistar foram divididos em 5 grupos: grupo SF – controle com solução fisiológica intra-ductal e IV; grupo TS – controle com PA induzida por tauracolato de sódio a 3% e solução fisiológica a 0,9% IV; grupo GD – controle com SF intra-ductal e cloreto de gadolínio IV; grupo GDTS – pré-tratamento com GD (24h antes da indução da PA) e grupo TSGD – tratamento com GD (1h após a indução da PA). Após a indução da pancreatite foi realizado eutanásia em 24h. Dosagem sérica de amilase, transaminases e TNF-α; dosagem da atividade da MPO no tecido pulmonar; histologia pancreática e pulmonar. RESULTADOS: O número de animais mortos antes do término previsto do experimento foi significativamente maior no grupo TSGD (p=0,046). Os escores de pancreatite e de dano pulmonar foram mais elevados nos grupos que utilizaram tauracolato em comparação aos grupos com infusão intra-ductal de solução salina. Não houve diferenças nas demais variáveis estudadas na comparação entre os grupos TS; GDTS e TSGD. CONCLUSÕES: Não foram demonstrados benefícios com o uso de cloreto de gadolínio de forma profilática e terapêutica.BACKGROUND: Some experimental studies suggest that the use of a selective blocker of Kupffer cells, gadolinium chloride as a pre-treatment, used 24 hours before the induction of pancreatitis, results in the decrease of mortality and associated lung injury. OBJECTIVE: To evaluate the effects of the use of gadolinium chloride treatment before and after induction of acute pancreatitis with sodium taurocholate 3% in rats. METHODS: Wistar rats were divided into 5 groups: group SF - control with saline intraductal and IV, group TS - with AP control induced by sodium tauracholate to 3% and saline IV; group GD - control with saline intra-ductal and gadolinium chloride IV; group GDTS - pre-treatment with GD (24 hours before the induction of AP) and group TSGD - treatment with GD (1h after the induction of AP). Euthanasia was carried out in 24 hours after the induction of pancreatitis. Analysis was made in serum amylase, transaminases and TNF-α; determination of the MPO activity in lung tissue, lung and pancreatic histology. RESULTS: The number of dead animals before the end of the experiment was significantly higher in group TSGD (p = 0,046). The scores of pancreatitis and lung damage were higher in the groups who used sodium tauracholate compared to groups with intra-ductal infusion of saline solution. There were no differences in other variables studied in comparison between groups TS; GDTS and TSGD. CONCLUSIONS: In this study the benefits with the use of gadolinium chloride as a prophylactic and therapeutic drug were not demonstrated
    corecore