Results 21 to 30 of about 244,829 (169)

Redundant regulation [PDF]

open access: yesNature Ecology & Evolution, 2018
Control of gene activity through transcriptional regulatory elements is a major driving force in human evolution. A new study measures nascent transcription directly and shows that sequence, activity and three-dimensional organization of transcriptional regulatory elements all contribute to the evolution of gene activity within primate CD4(+) T cells.
Lacadie, S.A., Ohler, U.
openaire   +2 more sources

Longevity of System Functions in Biology and Biomimetics: A Matter of Robustness and Resilience

open access: yesBiomimetics, 2023
Within the framework of a circular economy, we aim to efficiently use raw materials and reduce waste generation. In this context, the longevity of biomimetic material systems can significantly contribute by providing robustness and resilience of system ...
Max D. Mylo, Olga Speck
doaj   +1 more source

Monte Carlo optimization of redundancy of nanotechnology computer memories in the conditions of background radiation [PDF]

open access: yesNuclear Technology and Radiation Protection, 2018
The aim of this paper is applying statistical laws and enlargement law to determine a redundancy level of nanotechnology computers with a pre-given statistical confidence.
Dolićanin Edin, Fetahović Irfan S.
doaj   +1 more source

A Vexing Question in Motor Control: The Degrees of Freedom Problem

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
The human “marionette” is extremely complex and multi-articulated: anatomical redundancy (in terms of Degrees of Freedom: DoFs), kinematic redundancy (movements can have different trajectories, velocities, and accelerations and yet achieve the same goal,
Pietro Morasso
doaj   +1 more source

Macrophyte functional composition is stable across a strong environmental gradient of a Neotropical floodplain

open access: yesActa Botânica Brasílica, 2021
Ecological communities are compared by the similarity or distinctness of their species. Taking into account community composition at a determined site, one could expect a similar reasoning to explain differences in both taxonomic and functional ...
Suelen C. A. da Silva Pereto   +1 more
doaj   +1 more source

On statistical power grid observability under communication constraints (invited paper)

open access: yesIET Smart Grid, 2018
Phasor Measurement Units (PMUs) have enabled real-time power grid monitoring and control applications realizing an integrated power grid and communication system. The communication network formed by PMUs has strict latency requirements.
Minglei You   +5 more
doaj   +1 more source

A formulation of control allocation problem by several quadratic programming sub-problems and application for the motion control

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This paper proposes a control allocation method for the motion control in which the number of manipulated variables is one more than control degree of freedom.
Naoki IMAMURA   +2 more
doaj   +1 more source

A Multi-Hop Data Dissemination Algorithm for Vehicular Communication

open access: yesComputers, 2020
In vehicular networks, efficient multi-hop message dissemination can be used for various purposes, such a informing the driver about the recent emergency event or propagating the local dynamic map of a predefined region.
Odilbek Urmonov, HyungWon Kim
doaj   +1 more source

Differential Effector Engagement by Oncogenic KRAS

open access: yesCell Reports, 2018
Summary: KRAS can bind numerous effector proteins, which activate different downstream signaling events. The best known are RAF, phosphatidylinositide (PI)-3′ kinase, and RalGDS families, but many additional direct and indirect effectors have been ...
Tina L. Yuan   +29 more
doaj   +1 more source

Mechanisms of Mutational Robustness in Transcriptional Regulation

open access: yesFrontiers in Genetics, 2015
Robustness is the invariance of a phenotype in the face of environmental or genetic change. The phenotypes produced by transcriptional regulatory circuits are gene expression patterns that are to some extent robust to mutations.
Joshua L. Payne   +4 more
doaj   +1 more source

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