Results 61 to 70 of about 1,888,468 (273)

DeWitt Boundary Condition in One-Loop Quantum Cosmology

Universe, 2023
DeWitt’s suggestion that the wave function of the universe should vanish at the classical Big Bang singularity is considered here within the framework of one-loop quantum cosmology.
Giampiero Esposito
doaj   +1 more source

Fermionic edge states and new physics

, 2015
We investigate the properties of the Dirac operator on manifolds with boundaries in presence of the Atiyah-Patodi-Singer boundary condition. An exact counting of the number of edge states for boundaries with isometry of a sphere is given.
Govindarajan, T. R., Tibrewala, Rakesh
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Inverse Spectral-Scattering Problem with Two Sets of Discrete Spectra for the Radial Schroedinger Equation

, 2004
The Schroedinger equation on the half line is considered with a real-valued, integrable potential having a finite first moment. It is shown that the potential and the boundary conditions are uniquely determined by the data containing the discrete ...
Adams R A, Ahlfors L, Aktosun T, Aktosun T, Aktosun T, Borg G, Borg G, Chadan K, Chadan K, Chadan K, Churchill R V, Coddington E A, Deift P, Faddeev L D, Faddeev L D, Faddeev L D, Gel'fand I M, Gel'fand I M, Gesztesy F, Kato T, Levitan B M, Levitan B M, Levitan B M, Marchenko V A, Marchenko V A, Marchenko V A, Marchenko V A, Melin A, Newton R G, Novikova N N, Novikova N N, Reed M, Ricardo Weder, Rosenblum M, Stein E M, Titchmarsh E C, Titchmarsh E C, Tuncay Aktosun, Weidmann J   +38 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

General approach to the line source electromagnetic scattering by a circular strip: Both E‐ and H‐polarisation cases

IET Microwaves, Antennas & Propagation, 2021
This study presents a new approach to line‐source diffraction by a circular strip. The investigation is obtained by employing both electric and magnetic line sources where the corresponding field components satisfy the Dirichlet and Neumann boundary ...
Kamil Karaçuha
doaj   +1 more source

An Unfitted Method with Elastic Bed Boundary Conditions for the Analysis of Heterogeneous Arterial Sections

Mathematics, 2023
This manuscript presents a novel formulation for a linear elastic model of a heterogeneous arterial section undergoing uniform pressure in a quasi-static regime. The novelties are twofold.
Stephan Gahima, Pedro Díez, Marco Stefanati, José Félix Rodríguez Matas, Alberto García-González   +4 more
doaj   +1 more source

Fermionic Casimir effect with helix boundary condition

, 2011
In this paper, we consider the fermionic Casimir effect under a new type of space-time topology using the concept of quotient topology. The relation between the new topology and that in Ref.
A. Chodos, A. Erdas, C.J. Feng, Chao-Jun Feng, E. Elizalde, E. Elizalde, E. Elizalde, H. Queiroz, H.B.G. Casimir, I. Brevik, I. Brevik, I. Brevik, J.R. Munkres, M. Bordag, M.P. Hertzberg, R.M. Cavalcanti, S. Bellucci, S.C. Lim, T.M. Helliwell, V.K. Oikonomou, X. Shi, X.H. Zhai, X.H. Zhai, X.H. Zhai, X.Z. Li, X.Z. Li, X.Z. Li, Xiang-hua Zhai, Xin-zhou Li   +28 more
core   +1 more source

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

Continuity of the free boundary in elliptic problems with Neuman boundary condition

Electronic Journal of Differential Equations, 2015
We show the continuity of the free boundary in a class of two dimensional free boundary problems with Neuman boundary condition, which includes the aluminium electrolysis problem and the heterogeneous dam problem with leaky boundary condition.
Abderachid Saadi
doaj