Results 91 to 100 of about 500,460 (335)

Crossed-leg technique for digital subtraction angiography [PDF]

American Journal of Roentgenology, 1986
Intraarterial digital subtraction angiography (IADSA) is now well recognized as a preferred technique in the evaluation of peripheral vascular disease [1 -3]. In the study of the lower extremity the method is limited seriously by field size, motion of the part, and the air gap between both lower extremities. These limitations are substantially overcome
J Zito, E Rosen, K Gersten, B Greenspan, G Pillari   +4 more
openaire   +3 more sources

Escape from TGF‐β‐induced senescence promotes aggressive hallmarks in epithelial hepatocellular carcinoma cells

Molecular Oncology, EarlyView.
Chronic TGF‐β exposure drives epithelial HCC cells from a senescent state to a TGF‐β resistant mesenchymal phenotype. This transition is characterized by the loss of Smad3‐mediated signaling, escape from senescence, enhanced invasiveness and metastatic potential, and upregulation of key resistance modulators such as MARK1 and GRM8, ultimately promoting
Minenur Kalyoncu, Dilara Demirci, Sude Eris, Bengisu Dayanc, Ece Cakiroglu, Merve Basol, Merve Uysal, Gulcin Cakan‐Akdogan, Fang Liu, Mehmet Ozturk, Gökhan Karakülah, Serif Senturk   +11 more
wiley   +1 more source

Background Subtraction Using Dominant Directional Pattern

IEEE Access, 2018
Background subtraction technique is commonly used in foreground segmentation problem. Most of the existing color or intensity feature-based background subtraction methods suffer in non-stationary environments, such as presence of illumination variations.
Kaushik Roy, Rifat Arefin, Farkhod Makhmudkhujaev, Oksam Chae, Jaemyun Kim   +4 more
doaj   +1 more source

Tonic signaling of the B‐cell antigen‐specific receptor is a common functional hallmark in chronic lymphocytic leukemia cell phosphoproteomes at early disease stages

Molecular Oncology, EarlyView.
B‐cell chronic lymphocytic leukemia (B‐CLL) and monoclonal B‐cell lymphocytosis (MBL) show altered proteomes and phosphoproteomes, analyzed using mass spectrometry, protein microarrays, and western blotting. Identifying 2970 proteins and 316 phosphoproteins, including 55 novel phosphopeptides, we reveal BCR and NF‐kβ/STAT3 signaling in disease ...
Paula Díez, Pablo Juanes‐Velasco, Marina L. García‐Vaquero, Conrad Droste, Alicia Landeira‐Viñuela, Miguel Alcoceba, Helena Fidalgo‐Gómez, Sara Misiego‐Herrero, Almudena Navarro‐Bailón, Mónica Baile, José M. Bastida, Jose Manuel Sanchez‐Santos, Rafael Góngora, Julia Almeida, Marcos Gonzalez‐Diaz, Alberto Orfao, Javier De Las Rivas, Manuel Fuentes   +17 more
wiley   +1 more source

Foreground Contamination in Interferometric Measurements of the Redshifted 21 cm Power Spectrum

, 2009
Subtraction of astrophysical foreground contamination from "dirty" sky maps produced by simulated measurements of the Murchison Widefield Array (MWA) has been performed by fitting a 3rd-order polynomial along the spectral dimension of each pixel in the ...
, , Barkana, Bowman, Bridle, Briggs, Cohen, Condon, Di Matteo, Gnedin, González-Nuevo, Hales, Haslam, Jacqueline N. Hewitt, Judd D. Bowman, Kaiser, Laing, Landecker, Lawson, Lidz, Liu, McGilchrist, McQuinn, Miguel F. Morales, Mitchell, Morales, Morales, Morales, Morales, Myers, Pearson, Perley, Platania, Reich, Reich, Rogers, Santos, Sault, Shaver, Subrahmanyan, Tegmark, Wang, White, White, Wieringa, Zaldarriaga   +45 more
core   +2 more sources

Near-surface defect detection in additively manufactured components using laser induced phased arrays with surface acoustic wave crosstalk suppression

Materials & Design, 2023
In-process inspection of the additive manufacturing process requires a technique that can provide reliable measurements given the extreme operating environments, the small size of the defects and the cyclic melting and heating of the material, caused by ...
Geo Davis, Theodosia Stratoudaki, Peter Lukacs, Matthew W. Riding, Ahmed Al Fuwaires, Panagiotis Kamintzis, Don Pieris, Alan Keenan, Paul Wilcox, Gareth Pierce, Charles MacLeod, Stewart Williams   +11 more
doaj  

The value of dynamic subtraction MRI technique in the assessment of treatment response of hepatocellular carcinoma to transcatheter arterial chemoembolization

The Egyptian Journal of Radiology and Nuclear Medicine, 2019
Background Hepatocellular carcinoma is considered to be the fifth most common cancer worldwide. Resection and liver transplantation have a high survival in the correct clinical scenarios; however, locoregional therapy has many advantages over tumor ...
Lamiaa I. A. Metwally, Bahaa Eldin Mahmoud, Mahmoud Yehia   +2 more
doaj   +1 more source

Enhancing transporter activity in heterologous expression systems with SAHA: a 2500‐times more potent and odorless alternative to butyrate

FEBS Open Bio, EarlyView.
Heterologous expression of membrane transporters in cultured cells is essential for functional characterization, but is sometimes limited by low activity. Our study compares the HDAC inhibitors butyrate, VPA and SAHA to enhance transport activity. We propose to replace butyrate by SAHA: it is equally effective, devoid of repulsive odor, costs less, and
Svenja Flögel, Maurice Tust, Samira Boussettaoui, Dietmar Fischer, Dirk Gründemann   +4 more
wiley   +1 more source

A Joint Processing Strategy for Image Quality Improvement in 3D Digital Subtraction Angiography [PDF]

arXiv, 2023
Three-dimensional digital subtraction angiography (3D-DSA) is a widely adopted technique for clinical evaluation of contrast-enhanced vasculatures. The distribution of a contrast agent such as iodine is often estimated via temporal subtraction. Advancements in spectral imaging technologies such as photon counting detectors offer new opportunities to ...
arxiv  

GPI PSF subtraction with TLOCI: the next evolution in exoplanet/disk high-contrast imaging

, 2014
To directly image exoplanets and faint circumstellar disks, the noisy stellar halo must be suppressed to a high level. To achieve this feat, the angular differential imaging observing technique and the least-squares Locally Optimized Combination of ...
Correia, Carlos, Currie, Thayne, De Rosa, Rob, Galicher, Raphael, Ingraham, Patrick, Macintosh, Bruce, Marois, Christian   +6 more
core   +1 more source