Results 41 to 50 of about 916,602 (288)
Saúde & Tecnologia, 2022 Introdução – A tomografia de emissão de fotão simples sincronizada com o sinal eletrocardiográfico (Gated-SPECT) é essencial para a avaliação conjunta da perfusão e da função ventricular esquerda (VE) do miocárdio.
Raquel Correia +2 more
doaj +1 more source
Mechanisms of parasite‐mediated disruption of brain vessels
FEBS Letters, EarlyView.Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira +3 more
wiley +1 more source
Multiple Quantum Wells for P T -Symmetric Phononic Crystals [PDF]
, 2016 We demonstrate that the parity-time symmetry for sound is realized in laser-pumped multiple-quantum-well structures. Breaking of the parity-time symmetry for the phonons with wave vectors corresponding to the Bragg condition makes the structure a highly ...
Fainstein, Alejandro +2 more
core +1 more source
Factors that influence the stability of the FDG
Saúde & Tecnologia, 2015 Introduction – The absence of a cyclotron for production of 2-[18F]Fluor-2- -deoxy-D-glucose (18F-FDG) is now a reality for most of the centers where Positron Emission Tomography (TEP) exams are held in. It is therefore important to ensure the quality of
Ana Graça +4 more
doaj +1 more source
PET/CT com 18-fluor-fluorodeoxiglucose no seguimento do melanoma maligno cutâneo
Saúde & Tecnologia, 2022 Introdução – O melanoma maligno cutâneo (MMC) é considerado uma das mais letais neoplasias e no seu seguimento recorre-se, para além dos exames clínicos e da análise de marcadores tumorais, a diversos métodos imagiológicos, como é o exame Tomografia por
Sofia Batanete +3 more
doaj +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Emergent Orientation Selectivity from Random Networks in Mouse Visual Cortex [PDF]
, 2018 The connectivity principles underlying the emergence of orientation selectivity in primary visual cortex (V1) of mammals lacking an orientation map (such as rodents and lagomorphs) are poorly understood.
Hansel, David +4 more
core +2 more sources
Utility of the PET/CT in the characterization of the solitary pulmonary nodule
Saúde & Tecnologia, 2015 Background – The cancer of lung/trachea and bronchi is the leading cause of death from cancer in the European Union. Dual time in Positron Emission Tomography/Computed Tomography (PET/CT) technique has been referred in some articles as a great value in ...
Ana Graça +4 more
doaj +1 more source
PICALM::MLLT10 translocated leukemia
FEBS Letters, EarlyView.This comprehensive review of PICALM::MLLT10 translocated acute leukemia provides an in‐depth review of the structure and function of CALM, AF10, and the fusion oncoprotein (1). The multifaceted molecular mechanisms of oncogenesis, including nucleocytoplasmic shuttling (2), epigenetic modifications (3), and disruption of endocytosis (4), are then ...
John M. Cullen +7 more
wiley +1 more source
Wetting of Nematic Liquid Crystals on Crenellated Substrates: A Frank–Oseen Approach
Crystals, 2019 We revisit the wetting of nematic liquid crystals in contact with crenellated substrates, studied previously using the Landau−de Gennes formalism.
Óscar A. Rojas-Gómez +2 more
doaj +1 more source