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Search Results: 1 - 10 of 8542 matches for " Greyson Victor Zanatta ésper "
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Análises macro e microscópicas de enxertos cutaneos por semeadura após laserterapia de baixa intensidade Macro and microscopic analysis of island skin grafts after low-level laser therapy
Elisangela Barboza da Silva,Cintia Lúcia Maniscalco,Greyson Victor Zanatta ésper,Ricardo Rom?o Guerra
Revista do Colégio Brasileiro de Cirurgi?es , 2013,
Abstract: OBJETIVO: observar se a laserterapia de baixa intensidade acelera o processo inflamatório, a cicatriza o e epiteliza o de enxertos cutaneos por semeadura. MéTODOS: vinte ratos foram submetidos a esta técnica de enxertia e divididos em dois grupos iguais, um tratado com laser e outro controle. RESULTADOS: houve menor tempo de rea o inflamatória, maior velocidade de cicatriza o, epiteliza o e queratiniza o nos animais tratados com laser em rela o aos n o tratados. CONCLUS O: a laserterapia de baixa intensidade é efetiva no auxílio ao tratamento de enxertos por semeadura. OBJECTIVE: To observe the effects of low intensity laser therapy in inflammation, wound healing and epithelialization of island skin grafts. METHODS: Twenty rats were subjected to this grafting technique and divided subsequently into two equal groups, one treated with laser and the other control. RESULTS: there was less inflammation, faster healing, epithelialization and keratinization in the laser-treated animals when compared to the untreated. CONCLUSION: Low intensity laser therapy is helpful to island skin grafting.
Reconstru o do ligamento cruzado cranial em animais da espécie canina / Reconstruction of cranial cruciate ligament in animals of canine species
Luciana Dalazen dos Santos,Greyson Vitor Zanatta Esper,Olicies da Cunha
Ambiência , 2013,
Abstract: A ruptura do ligamento cruzado cranial (RLCC) é uma les o que ocorre com frequência em c es e gatos e pode ser dividida em agudas, relacionadas a traumatismos; cr nicas, relacionadas a processos degenerativos; e ainda ruptura completa ou parcial. A ruptura ligamentar traumática leva os c es a demonstrarem gravemente claudicantes e após três a cinco semanas a claudica o mostra-se leve a moderada. Na afec o cr nica, a claudica o é intermitente e exacerbada pela atividade física. O diagnóstico é obtido com a realiza o do teste de gaveta cranial e o teste de compress o tibial. Para o tratamento, s o propostas as terapias conservadora e a cirúrgica, sendo a última composta por mais de quarenta técnicas. S o utilizados três métodos cirúrgicos na restaura o da estabilidade numa articula o apresentando RLCC: (1) técnicas de sutura para lacera o da substancia intermediária, ou a fixa o das les es por avuls o óssea por meio da aplica o de faixas de tens o; (2) substitui o ou reconstru o do ligamento, mediante o uso de materiais diversos, classificadas como métodos intra-articulares ou intracapsulares; (3) transposi o de estruturas periarticulares ou a aplica o de materiais de sutura externamente à articula o, classificados como extra-articulares ou extracapsulares.
Cooperativismo no mercado lácteo / Cooperatives in the dairy market
Heloisa Godoi Bertagnon,Deonísia Martinichen,Greyson Vitor Zanatta Esper,Jorge Luis Favaro
Ambiência , 2011,
Abstract: O projeto “Assistência Técnica a Agricultores Familiares na Produ o Leiteira na regi o Centro-Oeste do Paraná” teve como objetivo geral oferecer suporte de acompanhamento técnico e organizacional a agricultores familiares, produtores de leite integrantes do sistema de cooperativas, em dez municípios do Paraná com baixo índice de desenvolvimento humano (IDH). Foram discutidas experiências vividas por seus participantes, levantando os pontos positivos e negativos referentes ao cooperativismo nesses municípios.AbstractThe project “Technical Assistance for Family Farmers Dairy in the Midwest region of Parana” aims generally support for the technical and organizational to farmers dairy members of the cooperative system in ten localities of the state with low human development index (HDI). They discussed experiences of participants, raising the pros and cons relating to involved region.
Altera??es hematológicas em c?es (Canis lupus familiaris) após tratamento com eletroacupuntura
Esper, Greyson Vitor Zanatta;Fernandes, Roberta Ribeiro;Zardo, Alessandra Maria Lemos Pontes;Cavalheri, Vagner Michel;Razente, Rodolfo André;Noro, Mirela;
Pesquisa Veterinária Brasileira , 2012, DOI: 10.1590/S0100-736X2012000200015
Abstract: acupuncture is an alternative therapy which increasingly acquires credibility in the western hemisphere and it is indicated for anemic and immunosuppressed patients, as well as for other diseases. the experiment was performed with 8 adult dogs, 4 females and 4 males. the study consisted to analyze the concentrations of white and red cells evaluated at four treatments: controls (t0), acupuncture (t1), unilateral electroacupuncture (t2), and bilateral electroacupuncture (t3). the acupoints utilized were: 4 large intestine, 11 small intestine and 36 stomachs. all animals experienced all treatments with an interval of 7 days to each treatment. the serum hemograms were verified 20 minutes prior to initiation to treatment (m0), at the end of the treatment (m1), 60 minutes after treatment (m2) and 120 minutes post-treatment (m3). the results revealed that the red series was not significant, but there was only a significant decrease in medium corpuscular concentration (p<0.05) at t1 of m1 as compared to the other treatments; also there was a significant reduction (p<0.05) in the platelet concentration at t1, t2 and t3 as compared to controls. the electro-acupuncture may lead to thrombocytopenia, when stimulating these points, probably by a parasympathetic stimulus.
Hypercapnia and hypokalemia in near-death experiences
Bruce Greyson
Critical Care , 2010, DOI: 10.1186/cc9016
Abstract: Klemenc-Ketis and colleagues' conclusion that hypercapnia plays a role in provoking NDEs is one possible interpretation of the correlation they found. It is also plausible that hypercapnia is simply an indicator of another factor that may be linked causally to NDE reports. For example, the authors noted that hypercapnia indicates better cardiac output and perfusion pressure, which would reduce the amnesia that is usually seen in cardiac arrest, so that patients would be more likely to remember what happened during the arrest. The association between NDEs and hypercapnia may thus indicate simply that patients who are able to recall more of their cardiac arrest also report more NDEs. Gliksman and Kellehear reviewed studies showing that levels of carbon dioxide in the blood are not necessarily accurate estimates of levels in the brain [4], which further complicates the interpretation of the current findings.The small sample size of this study, the contradictory evidence from other studies, and the unclear association between levels of carbon dioxide in the blood and in the brain suggest caution in interpreting the findings and suggest the need for further research.Zalika Klemenc-Ketis, Janko Kersnik and Stefek GrmecBruce Greyson proposes an alternative explanation for the results of our study [1], which can also be plausible. Namely, higher levels of the partial pressure of end-tidal carbon dioxide (petCO2) are also indicators of better cardiac output, as discussed in our article [1] and confirmed in our previous studies [5]. Higher incidence of reported NDEs in patients with hypercapnia might therefore indicate simply better memory of the actual NDE event, but this should be confirmed with further studies.A study about the effects of meditation on respiration and temporal lobes indicated that higher partial pressure of carbon dioxide (pCO2), which is a result of special breathing tech niques during meditation, might have been important in provoking cognitive and emoti
Experiências de quase-morte: implica??es clínicas
Greyson, Bruce;
Revista de Psiquiatria Clínica , 2007, DOI: 10.1590/S0101-60832007000700015
Abstract: background: when some people come close to death, they report a profound experience of transcending the physical world that often leads to spiritual transformation. these "near-death experiences" (ndes) are relevant to clinicians because they lead to changes in beliefs, attitudes, and values; they may be mistaken for psychopathological states, although producing different sequelae requiring different therapeutic approaches; and because they may enhance our understanding of consciousness. objectives: this literature review examined the evidences regarding explanations proposed to explain ndes, including expectation, birth memories, altered blood gases, toxic or metabolic hallucinations, and neurochemical and neuroanatomical models. methods: the literature on ndes of the past 30 years was examined comprehensively, including medical, nursing, psychological, and sociological databases. results: ndes typically produce positive changes in attitudes, beliefs, and values, but may also lead to interpersonal and intrapsychic problems. these problems have been compared to various mental disorders, but are distinguishable from them. various therapeutic strategies have been proposed to help experiencers with problematic aftereffects, but have not been tested yet. conclusions: the mystical consciousness and higher mental activity during ndes, when the brain is severely impaired, challenge current models of brain/mind interaction and may occasionally lead to more complete models for the understanding of consciousness.
THE NEW DIRECTION OF NUCLEAR MEDICINE
David Greyson
Iranian Journal of Nuclear Medicine , 1996,
Abstract: The role of the nuclear medicine has changed, from the early days when it was the only alternative to x-rays, to the present, when nuclear images are interpreted in light of specific metabolic processes, not anatomy. The development of specific receptor targeting radiopharmaceuticals, markers of viability using PETor SPECT, analogues of neurotransmitters etc., have placed the nuclear medicine physician into the realm of an in vivo biochemist or pharmacologist, or an applied physiologist. The current role of nuclear imaging is not merely to detect an abnormality, but to characterize the pathophysiology, risk stratify, direct therapy, and offer prognosis. As we recognize that the information obtained from a scintigram is occurring below the cellular level, we are entering the age of "Molecular Nuclear Medicine".
Unified Theory of Wave-Particle Duality, the Schr?dinger Equations, and Quantum Diffraction
Greyson Gilson
Physics , 2011,
Abstract: Individual quantum objects display inseparable coexisting wave-like properties and particle-like properties; such inseparable coexistence can seem paradoxical and mind-boggling. The apparent paradox is resolved by the unified theory of wave-particle duality developed in this paper. Based on the unified theory of wave-particle duality, a straightforward derivation of the Schr\"odinger equations is presented where previously no such derivation was considered to be possible. A new theory of quantum diffraction is subsequently developed.
Nonlocal Optical Real Image Formation Theory
Greyson Gilson
Physics , 2010,
Abstract: A nonlocal theory of optical real image formation is developed from the basic quantum physics linked to an optical real image formation apparatus. Optical real images are formed by photons. Photons are nonlocal quantum objects that exhibit wave-like properties and particle-like properties. Optical real image formation is nonlocal because at least two separated object points illuminated by a single photon are required for real image formation. When the distance between the illuminated points exceeds twice the wavelength of the light used two equi-amplitude plane waves propagate independently away from the object plane toward the imaging system. Propagation of photons away from a single point in the aperture plane does not occur. Photons with spatial frequencies that are within the passband of the imaging system pass through the imaging system. Each plane wave pair that propagates through the imaging system ultimately arrives at the image plane. At the image plane each plane wave pair overlaps to form an image of its associated pair of initial points on the object plane and thus contributes to real image formation. Object and image field depths are treated and found to be very different than they are ordinarily thought to be. Resolution limits related to real image formation are investigated. Reference distribution real image formation (RIF) is introduced. Real image formation with no fundamental resolution limit is predicted to be achievable by means of RIF.
IMAGING OF PARATHYROID LESIONS WITH RADIONUCLIDES - IS IT WORTH DOING?
N. D. Greyson
Iranian Journal of Nuclear Medicine , 1995,
Abstract: Parathyroid adenomas, or hyperplasia may be present in patients with hypercalcemia. Treatment Is by surgical excision, but about 10% of the lesions may be In ectopic locations. Pre-operative localization of the lesions with non-lvasive imaging, using radionuclides, ultrasound, CT, or MR], may simplify surgery, and reduce patient morbidity. However, the reports of the accuracy of the currently available techniques have shown wide variations. This problem Is reviewed, with emphasis on the radionuclide methods of duai radiopharmaceutical thailium-pertechnetate subtraction, and sestamibi delayed Imaging protocols. The author recommends the routine use of sestamibi, with additional non-Invasive imaging techniques to be added If the original scan Is negative.
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