Results 41 to 50 of about 159,091 (287)

Kidney Segmentation in CT Data Using Hybrid Level-Set Method with Ellipsoidal Shape Constraints

Metrology and Measurement Systems, 2017
With development of medical diagnostic and imaging techniques the sparing surgeries are facilitated. Renal cancer is one of examples. In order to minimize the amount of healthy kidney removed during the treatment procedure, it is essential to design a ...
Skalski Andrzej, Heryan Katarzyna, Jakubowski Jacek, Drewniak Tomasz   +3 more
doaj   +1 more source

Effect of Strain Hardening and Ellipticity on Elastic–Plastic Contact Behaviour between Ellipsoids and Rigid Planes

Machines, 2022
The contact behaviour between an ellipsoid and a rigid plane is significant in research on bearing and assembly joint surfaces. However, an empirical relationship between an elastic–plastic ellipsoid and a rigid plane has not been established.
Jian Chen, Wangyang Zhang, Chenglong Wang, Di Liu, Linbo Zhu   +4 more
doaj   +1 more source

Solutions to the direct and inverse navigation problems on the great ellipse

Journal of Geodetic Science, 2012
The Great Ellipse (GE) is the curve of intersection between the surface and a plane through the center of an ellipsoid. For arcs within a few thousands of kilometres it agrees within a few metres with the geodesic.
Sjöberg L. E.
doaj   +1 more source

Photo-Crosslinkable Colloids: From Fluid Structure and Dynamics of Spheres to Suspensions of Ellipsoids

Gels, 2016
Recently-developed photo-crosslinkable PMMA (polymethylmethacrylate) colloidal spheres are a highly promising system for fundamental studies in colloidal physics and may have a wide range of future technological applications. We synthesize these colloids
Avner P. Cohen, Maria Alesker, Andrew B. Schofield, David Zitoun, Eli Sloutskin   +4 more
doaj   +1 more source

Assessing Photoreceptor Structure Associated with Ellipsoid Zone Disruptions Visualized with Optical Coherence Tomography [PDF]

, 2016
Purpose: To compare images of photoreceptor layer disruptions obtained with optical coherence tomography (OCT) and adaptive optics scanning light ophthalmoscopy (AOSLO) in a variety of pathologic states.Methods: Five subjects with photoreceptor ellipsoid
Carroll, Joseph, Cooper, Robert F., Dubra, Alfredo, Flatter, John A., Han, Dennis P., Langlo, Christopher S., Neitz, Maureen, Pennesi, Mark E., Robison, Scott, Scoles, Drew, Weinberg, David V.   +10 more
core   +2 more sources

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

FEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson, Mackenzie K Herroon, Shane Mecca, Laimar C Garmo, Jacob Lindquist, Shrila Rajendran, Steve M. Patrick, Izabela Podgorski   +7 more
wiley   +1 more source

Stress field and spin axis relaxation for inelastic triaxial ellipsoids [PDF]

, 2012
A compact formula for the stress tensor inside a self-gravitating, triaxial ellipsoid in an arbitrary rotation state is given. It contains no singularity in the incompressible medium limit.
A. Rożek, Breiter, Burns, Byrd, Chandrasekhar, Chree, D. Vokrouhlický, Denisov, Deprit, Efroimsky, Efroimsky, Efroimsky, Efroimsky, Efroimsky, Efroimsky, Harris, Innes, Lambeck, Landau, Lazarian, Love, Molina, Munk, O'Connell, Paolicchi, Pravec, Prendergast, Purcell, Rubincam, S. Breiter, Saad, Scheeres, Sharma, Tokis, Vokrouhlický, Warner, Washabaugh, Whittaker, Wilmanski   +38 more
core   +2 more sources

The neural crest‐associated gene ERRFI1 is involved in melanoma progression and resistance toward targeted therapy

Molecular Oncology, EarlyView.
ERRFI1, a neural crest (NC)‐associated gene, was upregulated in melanoma and negatively correlated with the expression of melanocytic differentiation markers and the susceptibility of melanoma cells toward BRAF inhibitors (BRAFi). Knocking down ERRFI1 significantly increased the sensitivity of melanoma cells to BRAFi.
Nina Wang, Qian Sun, Daniel Novak, Lei Zhu, Juliane Poelchen, Tamara Steinfass, Yiman Wang, Viktor Umansky, Jochen Utikal   +8 more
wiley   +1 more source

Three Ellipsoids for External Approximation of the Half-Ball

Кібернетика та комп'ютерні технології
Introduction. Ellipsoids that approximate the half-ball in Rn (n≥2) and their volume is smaller than the volume of the ball can be used to construct algorithms for solving the problem of minimization of a convex (smooth or non-smooth) function, the ...
Olha Khomiak
doaj   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source