20 resultados para Exteriorization
Resumo:
This report evaluates the carotid artery exteriorization technique to allow repeated percutaneous artery catheterization in six brown brocket deer (Mazama gouazoubira). Repeated percutaneous catheterization of the carotid artery was possible for periods of 3 mo to obtain arterial blood and monitor arterial blood pressure of deer without risk of arterial rupture. The artery pulse was easily palpable for periods tip to 15 mo. Postoperative complication and/or arterial damage was not observed.
Resumo:
Evidence of infection with spirorchid flukes (Digenea: Spirorchidae) was sought at necropsy of 96 stranded green turtles, Chelonia mydas, that were examined during the course of a survey of marine turtle mortality in southeastern Queensland, Australia. Three species of spirorchid (Hapalotrema mehrai, H. postorchis, and Neospirorchis schistosomatoides) were identified. Severe disease due to spirorchid fluke infection (spirorchidiasis) was implicated as the principal cause of mortality in 10 turtles (10%), and appeared to be one of multiple severe problems in an additional 29 turtles (30%). Although flukes were observed in only 45% of stranded C. mydas in this study, presumed spirorchid fluke infection was diagnosed in an additional 53% of turtles, based principally on characteristic necropsy lesions and to a lesser extent on the histopathological detection of spirorchid eggs. Characteristic necropsy lesions included miliary spirorchid egg granulomas, which were observed most readily on serosal surfaces, particularly of the small intestine. Cardiovascular lesions included mural endocarditis, arteritis, and thrombosis, frequently accompanied by aneurysm formation. Resolution of thrombi was observed to occur via a combination of granuloma formation about indigestible components (spirorchid fluke egg shells) and exteriorization through the vessel wall, which resulted in granulomatous nodules on the adventitial surface. Septic aortic thrombosis complicated by disseminated bacterial infection, observed in five turtles, was recorded for the first time. Egg granulomas were ubiquitous in turtle tissues throughout this study. Although they generally appeared to be mild or incidental lesions, they were occasionally associated with severe multifocal granulomatous pneumonia or meningitis.
Resumo:
The introduction and popularization of laparoscopic cholecystectomy has been accompanied with a considerable increase in perforation of gallbladder during this procedure (10%--32%), with the occurrence of intraperitoneal bile spillage and the consequent increase in the incidence of lost gallstones (0.2%--20%). Recently the complications associated with these stones have been documented in the literature. We report a rare complication occurring in an 81-year-old woman who underwent laparoscopic cholecystectomy and developed cutaneous fistula to the umbilicus and elimination of biliary stones through the urinary tract. During the cholecystectomy, the gall bladder was perforated, and bile and gallstones were spilled into the peritoneal cavity. Two months after the initial procedure there was exteriorization of fistula through the umbilicus, with intermittent elimination of biliary stones. After eleven months, acute urinary retention occurred due to biliary stones in the bladder, which were removed by cystoscopy. We conclude that efforts should be concentrated on avoiding the spillage of stones during the surgery, and that no rules exist for indicating a laparotomy simply to retrieve these lost gallstones.
Resumo:
A preliminary account on the normal development of the imaginai discs in holometabolic Insects is made to serve as an introduction to the study of the hereditary homoeosis. Several facts and experimental data furnished specially by the students of Drosophila are brought here in searching for a more adequate explanation of this highly interesting phenomenon. The results obtained from the investigations of different homoeotic mutants are analysed in order to test Goldschmidt's theory of homoeosis. Critical examination of the basis on which this theory was elaborated are equally made. As a result from an extensive theoretical consideration of the matter and a long discussion of the most recent papers on this subject the present writer concludes that the Goldschmidt explanation of the homoeotic phenomena based on the action of diffusing substances produced by the genes, the "evocators", and on the alteration of the normal speed of maturation of the imaginai discs equally due to the activity of the genes, could not be proved and therefore should be abandoned. In the same situation is any other explanation like that of Waddington or Villee considered as fundamentally identical to that of Goldschmidt. In order to clear the problem of homoeosis in terms which seem to put the phenomenon in complete agreement with the known facts the present writer elaborated a theory first published a few years ago (1941) based entirely on the assumption that the imaginai discs are specifically determined by some kind of substances, probably of chemical nature, contained in the cytoplam of the cells entering in the consti- tution of each individual disc. These substances already present in the blastem of the egg in which they are distributed in a definite order, pass to different cells at the time the blastem is transformed into blastoderm. These substances according to their organogenic potentiality may be called antenal-substance, legsubstance, wing-substance, eye-substance, etc. The hipoderm of the embryo resulting from the multiplication of the blastoderm cells would be constituted by a series of cellular areas differing from each other in their particular organoformative capacity. Thus the hypoderm giving rise to the imaginai discs, it follows that each disc must have the same organogenic power of the hypodermal area it came from. Therefore the discs i*re determinated since their origin by substances enclosed in the cytoplasm of their cells and consequently can no longer alter their potentiality. When an antennal disc develops into a leg one can conclude that this disc in spite of its position in the body of the larva is not, properly speaking, an antennal disc but a true leg disc whose cells instead of having in their cytoplasm the antennal substance derived from the egg blastem have in its place the leg-substance. Now, if a disc produces a tarsus or an antenna or even a compound appendage partly tarsus-like, partly antenna-like, it follows tha,t both tarsal and antennal substances are present in it. The ultimate aspect of the compound structure depends upon the reaction of each kind of substance to the different causes influencing development. For instance, temperature may orient the direction of development either lowards arista or tarsus, stimulating, or opposing to the one or the other of these substances. Confering to the genes the faculty of altering the constitution of the substances containing in the cytoplasm forming the egg blastem or causing transposition of these substances from one area to another or promoting the substitution of a given substance by a different one, the hereditary homoeocis may be easily explained. However, in the opinion of the present writer cytoplasm takes the initiative in all developmental process, provoking the chromosomes to react specifically and proportionally. Accordingly, the mutations causing homoeotic phenomena may arise independently at different rime in the cytoplasm and in the chromosomes. To the part taken by the chromosomes in the manifestation of the homoeotic characters is due the mendalian ratio observed in homoeotic X normal crosses. Expression, in itself, is mainly due to the proportion of the different substances in the cells of the affected discs. Homoeotic phenomena not presenting mendelian ratio may appear as consequence of cytoplasmic mutation not accompanied by chromosomal mutation. The great variability in the morphology of the homoeotic characteres, some individual being changed towards an extreme expression of the mutant phenotype while others in spite of their homozigous constitution cannot be distinguished from the normal ones, strongly supports the interpretation based on the relative proportion of the determining substances in the discs. To the same interpretation point also asymetry and other particularities observed in the exteriorization of the phenomenon. In conformity with this new conception homoeosis should not prove homology of Insect appendages (Villee 1942) since a more replacement of substances may cause legs to develop in substitution of the wings, as it was already observed (requiring confirmation in the opinion of Bateson 1894, p. 184) and no one would conclude for the homology of these organs in the usual meaning of the term.
Resumo:
The term "complicated" diverticulitis is reserved for inflamed diverticular disease complicated by bleeding, abscess, peritonitis, fistula or bowel obstruction. Hemorrhage is best treated by angioembolization (interventional radiology). Treatment of infected diverticulitis has evolved enormously thanks to: 1) laparoscopic colonic resection followed or not (Hartmann's procedure) by restoration of intestinal continuity, 2) simple laparoscopic lavage (for peritonitis +/- resection). Diverticulitis (inflammation) may be treated with antibiotics alone, anti-inflammatory drugs, combined with bed rest and hygienic measures. Diverticular abscesses (Hinchey Grades I, II) may be initially treated by antibiotics alone and/or percutaneous drainage, depending on the size of the abscess. Generalized purulent peritonitis (Hinchey III) may be treated by the classic Hartmann procedure, or exteriorization of the perforation as a stoma, primary resection with or without anastomosis, with or without diversion, and last, simple laparoscopic lavage, usually even without drainage. Feculent peritonitis (Hinchey IV), a traditional indication for Hartmann's procedure, may also benefit from primary resection followed by anastomosis, with or without diversion, and even laparoscopic lavage. Acute obstruction (nearby inflammation, or adhesions, pseudotumoral formation, chronic strictures) and fistula are most often treated by resection, ideally laparoscopic. Minimal invasive therapeutic algorithms that, combined with less strict indications for radical surgery before a definite recurrence pattern is established, has definitely lead to fewer resections and/or stomas, reducing their attendant morbidity and mortality, improved post-interventional quality of life, and less costly therapeutic policies.
Resumo:
The influence of fungi associated with coffee fruits was verified regarding the chemical and physicochemical composition of Coffea arabica L. raw grains. The fruits were harvested at EPAMIG Experimental farm in Lavras, State of Minas Gerais - making up the different samples here analyzed. After processing and drying, the grains were incubated in wet chamber for fungal exteriorization through the blotter test method and submitted to the following analyses: polyphenoloxidase, total reducing and non-reducing sugars, clorogenic acid, titrable acidity, potassium leaching, electric conductivity and caffeine. The occurrence of the P. variable, P. rugulosum, P. funiculosum, F. equiseti, F. semitectum, A.alutaceus, A. niger and C. cladosporioides fungi in the different samples was detected. From the analysis of the results obtained, it was observed that the presence of the Aspergillus alutaceus fungus reduces the activity of the enzyme polyphenoloxidase and increases the values of potassium leaching, electric conductivity and chlorogenic acid. The incidence of the Cladosporium cladosporioides fungus influenced the average values of potassium leaching and electric conductivity.
Resumo:
Em eqüinos, as enterotomias no cólon descendente são necessárias para remover enterólitos, corpos estranhos e material alimentar compactado que não podem ser removidos por técnicas conservativas. Este segmento intestinal possui um suprimento sangüíneo pobre, além de predisposição a complicações pós-operatórias relacionadas à contaminação bacteriana. Assim, este estudo foi conduzido com o objetivo de efetuar avaliações clínicas e anatomopatológicas do emprego de adesivo tecidual à base de cianoacrilato no cólon descendente de eqüinos, comparando-o a uma técnica de sutura aposicional convencional. A intervenção cirúrgica foi realizada em 15 animais posicionados em decúbito lateral direito, através de laparotomia pelo flanco esquerdo, sob anestesia geral inalatória. Após a exteriorização do cólon descendente, foram realizadas duas enterotomias de cinco centímetros de extensão cada, distanciadas 20cm uma da outra. Os animais foram aleatoriamente distribuídos em cinco tempos de observação de três animais cada e sacrificados aos três, sete, 14, 35 e 70 dias de pós-operatório. O adesivo butil-2-cianoacrilato e o fio de poliglactina 910 mostraram-se igualmente apropriados para uso em enterorrafias desse órgão, sendo que o fio de poliglactina 910 provocou inflamação inicial mais intensa que o cianoacrilato e, mais tardiamente, ambos causaram inflamação granulomatosa do tipo corpo estranho observada, primeiramente, junto ao fio de poliglactina 910 (7º dia) e, a partir do 35º dia, ao redor do cianoacrilato.
Resumo:
This dissertation examines the contributions of juvenile literature reading for the problematization of the emotional experiences and conflicts of children at infant education. Its importance consists in providing useful information for the pedagogic work orientated to literature reading at the initial series of basic education, in order to increase the teacher s ability to explore the literary text from its instigating and enriching nature in view of the child s emotional experiences and conflicts. It is methodologically based on the principles of the qualitative research, what characterizes it as a case study. The research focused a level V-infant education class with 28 students in 5-6 age group, at a public school of Natal, State of Rio Grande do Norte (Brazil). The used resources were: audio recording, field diary, and interviews. Seventeen classes were carried out and they consisted in reading sessions of classic and contemporaneous tales, fables, and legends which used different didactic strategies. These sessions were developed in accordance with the reading experience through scaffolding instructions as it was described by Graves & Graves. The theoretical references were the studies of Amarilha (1997/ 2006), Bettelheim (2004), Coelho (1987/2000), Damásio (2005), Del Nero (2003), Eco (1994/2006), Held (1980), Iser (1996), Jauss (2002), Stierle (2002), Wallon (2007), Telles (2006), Yunes (2003), and Zilberman (1987). The analyses showed that literary reading in class is a special environment for inclusion of the reader s subjectivity; as well as the inclusion of their emotional experiences and their conflicts within the story by way of helping children think and become suitable for dealing with their inner feelings. The literary reading is presented as an experiential and formative activity which helps children understand their emotions through a process of identification, exteriorization, and catharsis; what implies that the esthetic experience from the text makes possible the reader s self-knowledge and increases the perception of his inner feelings and objective reality so that this reader has emotional capital to deal with life difficulties. It is important to highlight that the discussions carried out in the class represented a field of sharing experiences through which each reader had the chance to present their experience of life to the others, including their sorrows and sufferings, in order to help them to develop best strategies to deal with the social environment
Resumo:
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
This article aims to show the interdependence between teaching practice and the construction of body hexis of Physical Education teachers and its consequences at schools. It can be observed by the social workers that teach it in a elementary school in the city of Araraquara- -SP. It was established, as basic assumption of this issue, that the social construction of body hexis of Physical Education teachers is a process in constant evolution, because it is the result of the life story with interventions from the social context in which the learner lives. The hexis is the dimension that allows the internalization of the consequences of social practices, and also its body exteriorization, through the way of speaking, gesturing, looking, walking, head posture, faces, ways of sitting, to handle instruments, more and more associated with the voice sound of social workers. Children are particularly attentive, in all societies, to these gestures and postures in which they express themselves in their eyes, anything that features an adult. Finally, it understands the importance of the body hexis in the learning process specifically in school physical education. This practice will incite important behavioral changes in their residence within the school and possibly in a higher education.
Resumo:
This article aims to show the interdependence between teaching practice and the construction of body hexis of Physical Education teachers and its consequences at schools. It can be observed by the social workers that teach it in a elementary school in the city of Araraquara- -SP. It was established, as basic assumption of this issue, that the social construction of body hexis of Physical Education teachers is a process in constant evolution, because it is the result of the life story with interventions from the social context in which the learner lives. The hexis is the dimension that allows the internalization of the consequences of social practices, and also its body exteriorization, through the way of speaking, gesturing, looking, walking, head posture, faces, ways of sitting, to handle instruments, more and more associated with the voice sound of social workers. Children are particularly attentive, in all societies, to these gestures and postures in which they express themselves in their eyes, anything that features an adult. Finally, it understands the importance of the body hexis in the learning process specifically in school physical education. This practice will incite important behavioral changes in their residence within the school and possibly in a higher education.
Resumo:
According to recent studies, antioxidant supplementation on gamete processing and/or storage solutions improvesgamete quality parameters, after cooling or storage at sub zero temperature. The aim of the present study was to investigate the effects of antioxidant supplementation on pig and horse gamete storage. The first study aimed to determine the effects of resveratrol (RESV) on the apoptotic status of porcine oocytes vitrified by Cryotop method, evaluating phosphatidylserine (PS) exteriorization and caspases activation. RESV(2µM) was added during: IVM (A); 2 h post-warming incubation (B); vitrification/warming and 2 h post-warming incubation (C); all previous phases (D). The obtained data demonstrate that RESV supplementation in the various steps of IVM and vitrification/warming procedure can modulate the apoptotic process, improving the resistance of porcine oocytes to cryopreservation-induced damage. In the second work different concentrations of RESV (10, 20, 40, and 80µM) were added during liquid storage of stallion sperm for 24 hours at either 10°C or 4°C, under anaerobic conditions. Our findings demonstrate that RESV supplementation does not enhance sperm quality of stallion semen after 24 hours of storage. Moreover, the highest RESV concentrations tested (40 and 80µM) could damage sperm functional status, probably acting as pro-oxidant. Finally, in the third work other two antioxidants, ascorbic acid (AA) (100 µM) and glutathione (GSH) (5mM) were added on boar freezing and/or thawing solutions. In our study different sperm parameters were evaluated before freezing and at 30 and 240 minutes after thawing. Our results showed that GSH and AA significantly improved boar sperm cryotolerance, especially when supplemented together to both freezing and thawing media. This improvement was observed in sperm viability and acrosome integrity, sperm motility, and nucleoprotein structure. Although ROS levels were not much increased by freeze-thawing procedures, the addition of GSH and AA to both freezing and thawing extenders significantly decreased intracellular peroxide levels.
Resumo:
Según Dilthey, el análisis formalista llevado adelante por la gnoseología de Kant no logra comprender el mundo humano, por su parte, Hegel si aborda al hombre histórico, pero subsume su mundo al despliegue de la razón o el saber absoluto. El proyecto de una fundamentación de las ciencias del espíritu llevado adelante por Dilthey busca adentrarse en el mundo humano concibiéndolo como el conjunto de manifestaciones objetivadas de la vida. Kant y Hegel se convierten en sus interlocutores, pero también Comte con quien se enfrenta en pos de fundamentar la autonomía metodológica de las ciencias del espíritu. Sostengo que la noción tardía de «espíritu objetivo», que Dilthey toma de Hegel, pero que la concibe como el devenir de la vida política y cultural, permite releer toda la filosofía de Dilthey con otra perspectiva. El presente estudio no busca realizar un análisis comparativo entre Dilthey y Hegel, sino partir de la recepción que el primero hace del segundo a los efectos de comprender su filosofía. En este sentido, para Dilthey el «espíritu objetivo» está constituido por el conjunto de las organizaciones exteriores de la sociedad ?la estructura político-jurídica de la sociedad- y por las formas culturales como arte, religión y filosofía. El hombre es quien, según Dilthey, produce estas instituciones las cuales a su vez le anteceden y le sucederán en su existencia. En este sentido Dilthey concibe al hombre como un ser histórico y un «punto de cruce» de las distintas objetivaciones históricas. Este mundo compartido es el mundo histórico ?expresado a través de las nociones como Gemeinsamkeit, objektive Geist, verwebt y kreuzungspunkt-, aquel que contiene el conjunto de experiencia de vidas acumuladas y las expectativas de futuro. En síntesis, se sostiene que para Dilthey el mundo es manifestación objetiva de la vida ? fenomenología del espíritu-, siendo el espíritu objetivo o la vida objetivada, un producto del devenir de la vida humana. Es decir, en el mundo histórico actúan individuos dotados de voluntad- en una conexión estructural con su entorno, como «puntos de cruce» de las distintas objetivaciones. Es decir, la preocupación histórico sistemática diltheyana gira en torno al tema del hombre ?sujeto individual, «punto de cruce»- y lo socio-histórico ?mundo intersubjetivo y espíritu objetivo, manifestación objetivada de la vida-. Así, el hombre juega, para Dilthey, un papel central en la historia y en el despliegue de la vida. Todos los estudios gnoseológicos, epistemológicos, históricos y toda fundamentación sistemática es producto de las conexiones de vida. La importancia de los individuos, sus propias manifestaciones de vida y el «espíritu objetivo» -centros de análisis de las ciencias del espíritu-, permite comprender a la filosofía diltheyana como una filosofía de la intersubjetividad, en oposición a las interpretaciones clásicas que hacían que ella cayera en un psicologismo-empático. Asimismo, el plano de la exteriorización de las acciones individuales y sociales le permite a Dilthey encontrar un saber objetivo para las ciencias del espíritu