Results 51 to 60 of about 69,882 (311)

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

A Proposal to the Solution of Multiobjective Linear Fractional Programming Problem

open access: yesAbstract and Applied Analysis, 2013
We have proposed a new solution to the Multiobjective Linear Fractional Programming Problem (MOLFPP). The proposed solution is based on a theorem that deals with nonlinear fractional programming with single objective function and studied in the work by ...
Nuran Güzel
doaj   +1 more source

The metric dimension and metric independence of a graph [PDF]

open access: yes, 2001
A vertex x of a graph G resolves two vertices u and v of G if the distance from x to u does not equal the distance from x to v. A set S of vertices of G is a resolving set for G if every two distinct vertices of G are resolved by some vertex of S. The
Currie, James, Oellerman, Ortrud R.
core  

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

open access: yesFEBS 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   +5 more
wiley   +1 more source

The tolerance approach in multiobjective linear fractional programming [PDF]

open access: yes, 1997
When solving a multiobjective programming problem by the weighted sum ap- proach, weights represent the relative importance associated to the objectives.
Arévalo Quijada, María Teresa   +2 more
core  

Globally Optimal Energy-Efficient Power Control and Receiver Design in Wireless Networks

open access: yes, 2017
The characterization of the global maximum of energy efficiency (EE) problems in wireless networks is a challenging problem due to the non-convex nature of investigated problems in interference channels.
Björnson, Emil   +3 more
core   +4 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

SDP Duals without Duality Gaps for a Class of Convex Minimax Programs

open access: yes, 2013
In this paper we introduce a new dual program, which is representable as a semi-definite linear programming problem, for a primal convex minimax programming model problem and show that there is no duality gap between the primal and the dual whenever the ...
Jeyakumar, V., Vicente-Perez, J.
core   +1 more source

Neutrosophic Linear Fractional Programming Problems

open access: yes, 2018
In this chapter, a solution procedure is proposed to solveneutrosophic linear fractional programming (NLFP) problem where cost of the objective function, the resources and the technological coefficients are triangular neutrosophic numbers.
Abdel-Nasser Hussian   +4 more
openaire   +1 more source

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