Results 61 to 70 of about 150,922 (283)

Perturbative variational formulation of the Vlasov-Maxwell equations

, 2018
The perturbative variational formulation of the Vlasov-Maxwell equations is presented up to third order in the perturbation analysis. From the second and third-order Lagrangian densities, respectively, the first-order and second-order Vlasov-Maxwell ...
Brizard, Alain J.
core   +1 more source

An abstract formulation of variational refinement

Journal of Approximation Theory, 2004
The author develops an abstract approach to variational refinement of closed (periodic) curves that meet arbitrary convex constraints. Using closed-periodic piecewise linear (B-spline) curves he combines the abstract spline theory with near-interpolatory refinement techniques.
openaire   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Variational principles of micromagnetics revisited

, 2019
We revisit the basic variational formulation of the minimization problem associated with the micromagnetic energy, with an emphasis on the treatment of the stray field contribution to the energy, which is intrinsically non-local.
Di Fratta, Giovanni, Muratov, Cyrill B., Rybakov, Filipp N., Slastikov, Valeriy V.   +3 more
core   +1 more source

A variational formulation for GTM through time [PDF]

2008 IEEE International Joint Conference on Neural Networks (IEEE World Congress on Computational Intelligence), 2008
Generative Topographic Mapping (GTM) is a latent variable model that, in its original version, was conceived to provide clustering and visualization of multivariate, realvalued, i.i.d. data. It was also extended to deal with noni-i.i.d. data such as multivariate time series in a variant called GTM Through Time (GTM-TT), defined as a constrained Hidden ...
Olier Caparroso, Iván, Vellido Alcacena, Alfredo   +1 more
openaire   +2 more sources

This Is Not a Myeloproliferative Neoplasm…

Pediatric Blood &Cancer, EarlyView.
Stephanie Juané Kennedy
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

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, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Presymplectic current and the inverse problem of the calculus of variations

, 2013
The inverse problem of the calculus of variations asks whether a given system of partial differential equations (PDEs) admits a variational formulation.
Anderson I., Anderson I. M., Anderson I. M., Ashtekar A., Bryant R. L., Crnković Č., Goldschmidt H., Igor Khavkine, Schröder B. S. W., Vinogradov A. M., Zuckerman G. J.   +10 more
core   +1 more source

A Hamiltonian formulation of causal variational principles [PDF]

Calculus of Variations and Partial Differential Equations, 2017
32 pages, LaTeX, 1 figure, minor corrections (published version)
Finster, Felix, Kleiner, Johannes
openaire   +3 more sources

Fetal Brain Tumor Harboring a Unique ROCK1::BRAF Fusion

Pediatric Blood &Cancer, EarlyView.
Marllon Cindra Sant'Ana, Mariana Maschietto, Daniela Paz Leal, Ricardo de Santos de Oliveira, Mayara Ferreira Euzébio, Antonio Carlos dos Santos, Luciano Neder, Carlos Alberto Scrideli, Elvis Terci Valera   +8 more
wiley   +1 more source