Results 91 to 100 of about 8,071,777 (301)

Structural biology of ferritin nanocages

open access: yesFEBS 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

Financial Ratio Analysis: the Development of a Dedicated Management Information System [PDF]

open access: yesTheoretical and Applied Economics, 2007
This paper disseminates the results of the development process for a financial analysis information system. The system has been subject to conceptual design using the Unified Modeling Language (UML) and has been implemented in object-oriented manner ...
Voicu-Dan Dragomir
doaj   +1 more source

Performance enhancement of normal contact ratio gearing system through correction factor

open access: yesJournal of Mechanical Engineering and Sciences, 2019
As lined, higher transmission ratio drives system will have uneven stresses in the root region of the pinion and wheel. To enrich this agility of uneven stresses in normal-contact ratio (NCR) gearing system, an enhanced system is desirable to be ...
R. Ravivarman   +2 more
doaj   +1 more source

Self-synchronizing, bi-orthogonal coded PCM telemetry system [PDF]

open access: yes, 1971
Communications and data handling system improves signal to noise ratio when transmission channel is perturbed by noise. Telemetry system consists of airborne source, Gaussian additive noise channel, and ground receiver unit.
Miller, W.   +3 more
core   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Design of a Spatial Vibration System for Prescribed Ratio of Energy Peaks

open access: yesIEEE Access, 2020
The work ratio is a primary factor in the applications relevant to wide bandwidth requirements because a bandwidth depends on resonant peaks. Especially, since a single-body system can have up to six resonant peaks, a six degree-of-freedom spatial system
Yeong Geol Lee, Yong Je Choi
doaj   +1 more source

Propulsion sizing program [PDF]

open access: yes, 1972
Computer program was written to evaluate and define optimum design parameters of low pressure auxiliary propulsion system. APS will provide attitude and translational control of space shuttle vehicles.
Burns, A. E., Kaemming, T. A.
core   +1 more source

Phase transitions in dependence of apex predator decaying ratio in a cyclic dominant system

open access: yes, 2018
Cyclic dominant systems, like rock-paper-scissors game, are frequently used to explain biodiversity in nature, where mobility, reproduction and intransitive competition are on stage to provide the coexistence of competitors. A significantly new situation
Bazeia, D.   +2 more
core   +1 more source

Estimation of the Damping Ratio of the Coupled System Based on the Damping Ratios of Two 1-Dof Systems

open access: yesJournal of System Design and Dynamics, 2008
A number of different structures in industrial facilities are installed on supports. There is the case that the damage occurs by the coupled vibration. The response magnification is obtained from the modal natural frequency and the modal damping ratio of the coupled system in the seismic design.
Tetsuya WATANABE   +2 more
openaire   +2 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

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