Results 61 to 70 of about 2,007,382 (285)
, 2006 We present a practical and efficient means to compute the singular value decomposition (svd) of a quaternion matrix A based on bidiagonalization of A to a real bidiagonal matrix B using quaternionic Householder transformations.
Anderson +12 more
core +3 more sources
FEBS Letters, EarlyView.Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman +2 more
wiley +1 more source
Procedimentos intervencionistas para o manejo da dor no câncer
Einstein (São Paulo), 2012 OBJETIVO: Descrever tipos de procedimentos (seu uso racional e alguns de seus benefícios) realizados em pacientes com câncer tratados em um hospital privado de São Paulo.
Fabiola Peixoto Minson +5 more
doaj
SMOOTH ORDER SINGULARITIES [PDF]
Journal of Algebra and Its Applications, 2003 In [4] it was shown that the center of Cayley–Hamilton smooth orders is smooth whenever the central dimension is at most 2 and that there may be singularities in higher dimensions. In this paper, we give methods to classify central singularities of smooth orders up to smooth equivalence in arbitrary dimension and show that these methods are strong ...
Bocklandt, Raf +2 more
openaire +3 more sources
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Are classically singular spacetimes quantum mechanically singular as well?
, 2004 Are the classical singularities of general relativistic spacetimes, normally defined by the incompleteness of classical particle paths, still singular if quantum mechanical particles are used instead?
Arndt, V. +2 more
core +2 more sources
Physical Review D, 2012 Lifshitz spacetimes are possible gravitational duals to strongly coupled field theories with an anisotropic scaling symmetry. These spacetimes however, have a null curvature singularity. We find that higher dimensional embeddings of Lifshitz also have a similar singularity.
Horowitz, Gary T., Way, Benson
openaire +3 more sources
Molecular Oncology, EarlyView.This study investigated how PYCR1 inhibition in bone marrow stromal cells (BMSCs) indirectly affects multiple myeloma (MM) cell metabolism and viability. Culturing MM cells in conditioned medium from PYCR1‐silenced BMSCs impaired oxidative phosphorylation and increased sensitivity to bortezomib.
Inge Oudaert +13 more
wiley +1 more source
Rocky Mountain Journal of Mathematics, 1999 Consider a smooth manifold \(M\) and \(g\) a smooth section of the bundle of symmetric two tensors on \(M\). A point \(p\in M\) such that \(g_p\) is degenerate is called a metric singularity. In the first part of this paper, an interesting existence and uniqueness theorem for geodesics through a metric singular point is proven (Theorem 2.6).
openaire +3 more sources
Phase singularity diffusion [PDF]
Optics Letters, 2014 We follow the trajectories of phase singularities at nulls of intensity in the speckle pattern of waves transmitted through random media as the frequency of the incident radiation is scanned in microwave experiments and numerical simulations. Phase singularities are observed to diffuse with a linear increase of the square displacement with frequency ...
Cheng, Xiaojun +2 more
openaire +3 more sources