Results 91 to 100 of about 3,872,829 (369)

Inverses and eigenvalues of diamondalternating sign matrices

open access: yesSpecial Matrices, 2014
An n × n diamond alternating sign matrix (ASM) is a (0, +1, −1)-matrix with ±1 entries alternatingand arranged in a diamond-shaped pattern. The explicit inverse (for n even) or generalized inverse (for nodd) of a diamond ASM is derived.
Catral Minerva   +3 more
doaj   +1 more source

Inverse limits of Macaulay's inverse systems [PDF]

open access: yesJournal of Algebra, 2019
17 ...
Mathias Schulze, Laura Tozzo
openaire   +2 more sources

The impact of frailty syndrome on skeletal muscle histology: preventive effects of exercise

open access: yesFEBS Open Bio, EarlyView.
Frailty syndrome exacerbates skeletal muscle degeneration via increased ECM deposition and myofiber loss. This study, using a murine model, demonstrates that endurance exercise attenuates these histopathological alterations, preserving muscle integrity. Findings support exercise as a viable strategy to counteract frailty‐induced musculoskeletal decline
Fujue Ji   +3 more
wiley   +1 more source

Restrained captive domination number

open access: yesOpen Engineering
The restrained captive domination number (RCDN), denoted by γRca(G),{\gamma }_{{\rm{Rca}}}(G), is a new definition of domination number in graphs introduced in this article.
Alrikabi Zainab Yasir   +2 more
doaj   +1 more source

Solving inverse problems using data-driven models

open access: yesActa Numerica, 2019
Recent research in inverse problems seeks to develop a mathematically coherent foundation for combining data-driven models, and in particular those based on deep learning, with domain-specific knowledge contained in physical–analytical models.
S. Arridge   +3 more
semanticscholar   +1 more source

An approach for coherent periodogram averaging of tilt‐series data for improved contrast transfer function estimation

open access: yesFEBS Open Bio, EarlyView.
The contrast transfer function (CTF) is an imaging aberration that is a major resolution‐limiting factor in cryo‐electron microscopy (cryo‐EM). Precise CTF estimation is key to overcoming this limitation, but is particularly challenging in cryo‐electron tomography (cryo‐ET) data. Here, we present an approach for using geometric information to assist in
Sagar Khavnekar, William Wan
wiley   +1 more source

Profiling the effect of low frequency mechanical vibration on the metabolic and oxidative stress responses of A431 carcinoma

open access: yesFEBS Open Bio, EarlyView.
20 Hz mechanical vibration induced A431 cancer cells' apoptosis without such effect on other healthy cell lines of L929 and C2C12. Lowered glucose consumption is observed specifically in A431. The expressions of ROS, HMGB1, and HSP1 levels initially increase and subsequently decrease in the cancer cell line, as opposed to L929 and C2C12, which ...
Wresti L. Anggayasti   +5 more
wiley   +1 more source

Uniqueness and Stability in Inverse Spectral Problems for Collapsing Manifolds [PDF]

open access: yes, 2012
We consider a geometric inverse problems associated with interior measurements: Assume that on a closed Riemannian manifold $(M, h)$ we can make measurements of the point values of the heat kernel on some open subset $U \subset M$. Can these measurements
Kurylev, Yaroslav   +2 more
core  

Advantages and limitations of navigation‐based multicriteria optimization (MCO) in selectively sparing pharyngeal constrictor muscles in head and neck radiotherapy treatment planning

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Sparing pharyngeal constrictor muscles (PCMs) during radiotherapy improves patient‐reported swallowing function. This study aimed to explore the feasibility of integrating knowledge‐based planning (KBP) with multicriteria optimization (MCO) in Eclipse v18.0 to selectively spare PCM, quantify the required trade‐off in prophylactic ...
Laura K. Howard   +3 more
wiley   +1 more source

Limit cycles in models of circular gene networks regulated by negative feedback loops

open access: yesBMC Bioinformatics, 2020
Background The regulatory feedback loops that present in structural and functional organization of molecular-genetic systems and the phenomenon of the regulatory signal delay, a time period between the moment of signal reception and its implementation ...
Vitaly A. Likhoshvai   +2 more
doaj   +1 more source

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