Results 41 to 50 of about 7,097,559 (319)

First-Order Boundary Value Problem with Nonlinear Boundary Condition on Time Scales

Discrete Dynamics in Nature and Society, 2011
This work is concerned with the following first-order dynamic equation on time scale ,  xΔ(t)+p(t)x(σ(t))=f(t,x(t)),  t∈[0,T]𝕋 with the nonlinear boundary condition x(0)=g(x(σ(T))).
Ya-Hong Zhao
doaj   +1 more source

Effect of Boundary Condition and Model Structure Integrity of Tooth-PDL-Bone Complex on Tooth Mode Computation

IEEE Access, 2019
Tooth mode has been proven to be adaptable for the diagnosis of periodontal disease. However, in previous studies of tooth mode computation, model settings, including boundary condition and model structure integrity, were quite different.
Yangzhou Gan, Jing Xiong, Qunfei Zhao, Zeyang Xia   +3 more
doaj   +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

Particle Creation by a Moving Boundary with Robin Boundary Condition

, 2006
We consider a massless scalar field in 1+1 dimensions satisfying a Robin boundary condition (BC) at a non-relativistic moving boundary. We derive a Bogoliubov transformation between input and output bosonic field operators, which allows us to calculate ...
, Alves D T, B Mintz, C Farina, Chen G, Crocce M, de Albuquerque L C, Fulling S A, Fulling S A, Jaekel M T, Maia Neto P A, Maia Neto P A, Maia Neto P A, Maia Neto P A, Mintz B, Mostepanenko V M, P A Maia Neto, R B Rodrigues, Romeo A   +18 more
core   +2 more sources

Excision boundary conditions for black hole initial data [PDF]

, 2004
We define and extensively test a set of boundary conditions that can be applied at black hole excision surfaces when the Hamiltonian and momentum constraints of general relativity are solved within the conformal thin-sandwich formalism.
A. Lichnerowicz, C. W. Misner, Gregory B. Cook, Harald P. Pfeiffer, J. W. York, Jr., J. W. York, Jr., M. W. Choptuik, R. W. Lindquist   +7 more
core   +2 more sources

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

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Spectrum of a duality-twisted Ising quantum chain [PDF]

, 2001
The Ising quantum chain with a peculiar twisted boundary condition is considered. This boundary condition, first introduced in the framework of the spin-1/2 XXZ Heisenberg quantum chain, is related to the duality transformation, which becomes a symmetry ...
Alcaraz F C, Alcaraz F C, Coquereaux R, Grimm U, Grimm U, Lieb E H, Petkova V B, Schütz G, Uwe Grimm   +8 more
core   +2 more sources

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

Accurate energy spectrum for double-well potential: periodic basis

, 2010
We present a variational study of employing the trigonometric basis functions satisfying periodic boundary condition for the accurate calculation of eigenvalues and eigenfunctions of quartic double-well oscillators.
Arias de Saavedra F, Balsa R, Bandyopadhyay K, Banerjee K, Bender CM, Bishop R, Boyd JP, Cao Z, Carlitz RD, Chandra A, Jeong MG, Kleinert H, Landau LD, M. Mirzaei, P. Pedram, S.S. Gousheh, Taşeli H, Taşeli H, Taşeli H, Turbiner A, Witwit MRM   +20 more
core   +1 more source