Results 101 to 110 of about 2,058,787 (289)

Theoretical Proof of and Proposed Experimental Search for the Ground Triplet State of a Wigner-Regime Two-Electron ‘Artificial Atom’ in a Magnetic Field

Axioms
It is experimentally established that there is no ground triplet state of the natural He atom. There is also no exact analytical solution to the Schrödinger equation corresponding to this state.
Marlina Slamet, Viraht Sahni
doaj   +1 more source

Zero-point fluctuations in the ground state of a mesoscopic normal ring

, 2000
We investigate the persistent current of a ring with an in-line quantum dot capacitively coupled to an external circuit. Of special interest is the magnitude of the persistent current as a function of the external impedance in the zero temperature limit ...
A. D. Zaikin, A. G. Huibers, A. J. Rimberg, A. O. Caldeira, A. Yacoby, A. Zawadowski, D. S. Golubev, D. S. Golubev, F. W. J. Hekking, H.-F. Cheung, H.-P. Eckle, I. L. Aleiner, I. L. Aleiner, K. Kang, L. Tian, M. Büttiker, M. Büttiker, M. Büttiker, M. Büttiker, M. Büttiker, M. Büttiker, M. Büttiker, M. Grifoni, M. Oshikawa, M. T. Liu, M. T. Liu, M. V. Moskalets, Markus Büttiker, P. A. Mello, P. Cedraschi, P. Cedraschi, P. Cedraschi, P. Mohanty, P. Mohanty, P. Sandstroem, Pascal Cedraschi, R. Deblock, R. Kotlyar, R. Landauer, T. Taniguchi, U. Gavish, U. Weiss, V. E. Kravtsov, Y. Imry, Ya. M. Blanter, Ya. M. Blanter   +45 more
core   +2 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Ground state sign-changing solution for a logarithmic Kirchhoff-type equation in $\mathbb{R}^{3}$

Electronic Journal of Qualitative Theory of Differential Equations
We investigate the following logarithmic Kirchhoff-type equation: \begin{equation*} \left(a+b\int_{\mathbb{R}^{3}}|\nabla u|^{2}+V(x)u^{2}dx\right)[-\Delta u+V(x)u]=|u|^{p-2}u\ln |u|,\qquad x\in\mathbb{R}^{3}, \end{equation*} where $a,b>0$ are constants,
Wei-Long Yang, Jia-Feng Liao
doaj   +1 more source

Existence of Positive Ground State Solution for the Nonlinear Schrödinger-Poisson System with Potentials

Advances in Mathematical Physics, 2018
In the present paper we study the existence of positive ground state solutions for the nonautonomous Schrödinger-Poisson system with competing potentials. Under some assumptions for the potentials we prove the existence of positive ground state solution.
Lu Xiao, Haiqin Qian, Mengmeng Qu, Jun Wang   +3 more
doaj   +1 more source

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

Existence of a ground-state solution for a quasilinear Schrödinger system

Frontiers in Physics
In this paper, we consider the following quasilinear Schrödinger system.−Δu+u+k2Δ|u|2u=2αα+β|u|α−2u|v|β,x∈RN,−Δv+v+k2Δ|v|2v=2βα+β|u|α|v|β−2v,x∈RN,where k < 0 is a real constant, α > 1, β > 1, and α + β < 2*.
Xue Zhang, Jing Zhang, Jing Zhang, Jing Zhang   +3 more
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

Structure of ground state solutions for singular elliptic equations with a quadratic gradient term

Electronic Journal of Differential Equations, 2011
We establish results on existence, non-existence, and asymptotic behavior of ground state solutions for the singular nonlinear elliptic problem $$displaylines{ -Delta u = g(u)| abla u |^2 + lambdapsi(x) f(u) quadhbox{in } mathbb{R}^N,\ u > 0 ...
Antonio Luiz Melo, Carlos Alberto Santos
doaj  

In vitro models of cancer‐associated fibroblast heterogeneity uncover subtype‐specific effects of CRISPR perturbations

Molecular Oncology, EarlyView.
Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra, Shamsudheen Karuthedath Vellarikkal, Lixia Li, Hong Sun, Khoa Nguyen, Amber Montano, Suchitra Natarajan, Federica Piccioni, Alex Michael Tamburino, Xin Yu, Aleksandra Katarzyna Olow   +10 more
wiley   +1 more source