Results 71 to 80 of about 1,644,648 (291)
MicroRNA governs bistable cell differentiation and lineage segregation via a noncanonical feedback
Molecular Systems Biology, 2021 Positive feedback driven by transcriptional regulation has long been considered a key mechanism underlying cell lineage segregation during embryogenesis.
Chung‐Jung Li +9 more
doaj +1 more source
Feedback Mechanisms of Thymic Lymphocyte Production.
Experimental Biology and Medicine, 1967 SummaryThymidine-H3 uptake of thymocytes from rats injected with antilymphocyte serum was increased when the blood lymphocyte count was low whereas it was decreased when the count returned to normal. Thymocytes from rats injected with antithymus serum showed increased RNA metabolism despite lowered thymidine-H3 uptake and sustained lymphopenia.
H, Nagaya, H O, Sieker
openaire +2 more sources
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Explaining the most energetic supernovae with an inefficient jet-feedback mechanism
, 2016 We suggest that the energetic radiation from core-collapse super-energetic supernovae (SESNe) is due to a long lasting accretion process onto the newly born neutron star (NS), resulting from an inefficient operation of the jet-feedback mechanism.
Gilkis, Avishai +2 more
core +1 more source
USV Path Planning in a Hybrid Map Using a Genetic Algorithm with a Feedback Mechanism
Journal of Marine Science and EngineeringUnmanned surface vehicles (USVs) often operate in real-world environments with long voyage distances and complex routes. The use of a single-grid map model presents challenges, such as the high computational costs for high-resolution maps and loss of ...
Hang Gao +6 more
doaj +1 more source
FEBS Letters, EarlyView.Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes +4 more
wiley +1 more source
Adaptive Multicast of Multi-Layered Video: Rate-Based and Credit-Based Approaches
, 1998 Network architectures that can efficiently transport high quality, multicast video are rapidly becoming a basic requirement of emerging multimedia applications.
Albuquerque, Celio +2 more
core +1 more source
Cooling of a mirror by radiation pressure [PDF]
, 1999 We describe an experiment in which a mirror is cooled by the radiation pressure of light. A high-finesse optical cavity with a mirror coated on a mechanical resonator is used as an optomechanical sensor of the Brownian motion of the mirror.
A. Abramovici +20 more
core +2 more sources
Feedback mechanism of front abutment stress on filling rate of backfilling body in coal burst mine
Meitan xuebaoHigh stress is the main reason for high frequency of rock burst in deep coal mines. Backfilling mining serves as an effective method to control roof strata movement, alleviate the degree of stress concentration, and reduce the failure of surrounding rock
Zhaohui WANG +10 more
doaj +1 more source
Molecular Oncology, 2018 Although MEK blockade has been highlighted as a promising antitumor drug, it has poor clinical efficacy in KRAS mutant colorectal cancer (CRC). Several feedback systems have been described in which inhibition of one intracellular pathway leads to ...
Seul‐Ki Cheon +7 more
doaj +1 more source