Selective Compression
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Celiac artery compression: Dunbar syndrome
Resumo A síndrome da compressão da artéria celíaca, também denominada síndrome do ligamento arqueado mediano, síndrome do eixo celíaco ou síndrome de Dunbar, é uma doença rara causada pela compressão extrínseca do tronco celíaco pelo ligamento arqueado mediano. Ultrassonografia Doppler, angiotomografia computadorizada, angiorressonância magné
J. vasc. bras.. Publicado em: 30/05/2019
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2. The development and characterization of Propranolol Tablets using Tapioca starch as excipient
Abstract: Tapioca starch (TS) is produced from Cassaca roots and it is differentiated from other starches because it contains about 17–20% amylase and low amount of residual substances. Propranolol (POP) is a non-selective beta-adrenergic blocking agent and it is in the World Health Organization’s List of Essential Medicines. The aim of this work was to
An. Acad. Bras. Ciênc.. Publicado em: 08/04/2019
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3. Phase Formation, Thermal Stability and Mechanical Properties of a Cu-Al-Ni-Mn Shape Memory Alloy Prepared by Selective Laser Melting
Selective laser melting (SLM) is an additive manufacturing process used to produce parts with complex geometries layer by layer. This rapid solidification method allows fabricating samples in a non-equilibrium state and with refined microstructure. In this work, this method is used to fabricate 3 mm diameter rods of a Cu-based shape memory alloy. The phase f
Mat. Res.. Publicado em: 23/10/2015
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4. Periodic mechanical stress activates MEK1/2-ERK1/2 mitogenic signals in rat chondrocytes through Src and PLCγ1
The mitogenic effects of periodic mechanical stress on chondrocytes have been studied extensively but the mechanisms whereby chondrocytes sense and respond to periodic mechanical stress remain a matter of debate. We explored the signal transduction pathways of chondrocyte proliferation and matrix synthesis under periodic mechanical stress. In particular, we
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-12
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5. Compressão Seletiva de Imagens Coloridas com Detecção Automática de Regiões de Interesse
There has been an increasing tendency on the use of selective image compression, since several applications make use of digital images and the loss of information in certain regions is not allowed in some cases. However, there are applications in which these images are captured and stored automatically making it impossible to the user to select the regions o
Publicado em: 2006
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6. CRYPTO-COMPRESSION PREFIX CODING / CODIFICAÇÃO LIVRE DE PREFIXO PARA CRIPTO-COMPRESSÃO
Data compression and encryption are essential features when digital data is stored or transmitted over insecure channels. Usually, we apply two sequential operations: first, we apply data compression to save disk space and to reduce transmission costs, and second, data encryption to provide confidentiality. This solution works fine for most applications, but
Publicado em: 2006
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7. Acquired pulmonary stenosis and pulmonary artery compression
Three patients suffering from acquired pulmonary stenosis are described resulting from compression of the main pulmonary artery by anterior mediastinal teratoma, Hodgkin's disease, and aneurysm of the ascending aorta, respectively; also four others who had compression of the right or left primary branch of the pulmonary artery. The pulmonary artery compressi
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8. Loss of Highly Branched Arabinans and Debranching of Rhamnogalacturonan I Accompany Loss of Firm Texture and Cell Separation during Prolonged Storage of Apple1
Growth and maturation of the edible cortical cells of apples (Malus domestica Borkh) are accompanied by a selective loss of pectin-associated (1→4)-β-d-galactan from the cell walls, whereas a selective loss of highly branched (1→5)-α-l-arabinans occurs after ripening and in advance of the loss of firm texture. The selective loss of highly branched arab
American Society of Plant Biologists.
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9. Ocular neuromyotonia.
AIMS/BACKGROUND: Ocular neuromyotonia is characterised by spontaneous spasm of extraocular muscles and has been described in only 14 patients. Three further cases, two with unique features, are described, and the underlying mechanism reviewed in the light of recent experimental evidence implicating extracellular potassium concentration in causing spontaneous
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10. High resolution magnetic resonance imaging of the anterior visual pathway in patients with optic neuropathies using fast spin echo and phased array local coils.
High resolution MRI of the anterior visual pathways was evaluated using frequency selective fat suppressed fast spin echo (FSE) sequences in conjunction with phased array local coils in patients with optic neuropathies. Fifteen normal controls and 57 patients were examined. Coronal T2 weighted fat suppressed FSE images were obtained in 11 minutes with an in
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11. Central changes in processing of mechanoreceptive input in capsaicin-induced secondary hyperalgesia in humans.
1. Capsaicin, the algesic substance in chilli peppers, was injected intradermally in healthy human subjects. A dose of 100 micrograms given in a volume of 10 microliters caused intense pain lasting for a few minutes after injection and resulted in a narrow area of hyperalgesia to heat and a wide surrounding area of hyperalgesia to mechanical stimuli (strokin
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12. Dissociation of amyloid fibrils of α-synuclein and transthyretin by pressure reveals their reversible nature and the formation of water-excluded cavities
Protein misfolding and aggregation have been linked to several human diseases, including Alzheimer's disease, Parkinson's disease, and systemic amyloidosis, by mechanisms that are not yet completely understood. The hallmark of most of these diseases is the formation of highly ordered and β-sheet-rich aggregates referred to as amyloid fibrils. Fibril for
National Academy of Sciences.