Results 51 to 60 of about 3,372,464 (292)

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

Internal and external disturbances aware motion planning and control for quadrotors

IET Cyber-systems and Robotics
Resilient motion planning and control, without prior knowledge of disturbances, are crucial to ensure the safe and robust flight of quadrotors. The development of a motion planning and control architecture for quadrotors, considering both internal and ...
Xiaobin Zhou, Miao Wang, Can Cui, Yongchao Wang, Chao Xu, Fei Gao   +5 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Design of Integral Sliding Mode Controller for Servo DC Motor

مجلة النهرين للعلوم الهندسية, 2017
DC servo motor is simple in construction and control and has many applications. However, the uncertainties due to its parameters changes such as load torque and friction are an evitable.
Bashar Fateh Midhat, Amjad Jaleel Humaidi, Firas A. Raheem   +2 more
doaj  

Hand-like autonomous flying robot for airborne grasping and interaction

Nature Communications
Birds’ extraordinary aerial agility and environmental interaction enable complex tasks such as mid-air hunting, perching, and nest-building, inspiring the development of advanced aerial robots with similar manipulation capabilities.
Yuze Wu, Fan Yang, Rui Jin, Yuhang Zhong, Junjie Wang, Xuankang Wu, Fei Gao   +6 more
doaj   +1 more source

An Innovative Damped Cuckoo Search Algorithm With a Comparative Study Against Other Adaptive Variants

IEEE Access, 2019
This paper aims to find the best variant of Cuckoo Search Algorithm that makes the step size of Lévy flight adaptive. For this reason, we introduce a new variant of CSA called Damped Cuckoo Search (DCS) in which the step size of Lévy ...
Mohamed Reda, Amira Y. Haikal, Mostafa A. Elhosseini, Mahmoud Badawy   +3 more
doaj   +1 more source

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

FEBS 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, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Hyperelastic Membrane Actuators: Analysis of Toroidal and Helical Multifunctional Configurations

Cyborg and Bionic Systems, 2022
Technologies that provide mechanical assistance are required in the medical field, such as implants that regenerate tissue through elongation and stimulation. One of the challenges is to develop actuators that combine the benefits of high axial extension
Eduardo Perez-Guagnelli, Joanna Jones, Dana D. Damian   +2 more
doaj   +1 more source

Quantum control in infinite dimensions

, 2003
Accurate control of quantum evolution is an essential requirement for quantum state engineering, laser chemistry, quantum information and quantum computing.
Ball, Gramss, Huang, Lloyd, R Vilela Mendes, Rabitz, Reed, Witold Karwowski   +7 more
core   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source