Results 51 to 60 of about 46,345 (342)

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Some Counterexamples Concerning a Differential Criterion for Flatness [PDF]

Proceedings of the American Mathematical Society, 1981
Let A denote a commutative ring with identity. We suppose A contains a field k of characteristic zero. Let Ql(A) and d: A -gl(A) denote the A-module of first-order k-differentials on A and the canonical derivation of A into 0'(A) respectively. If % is an ideal of A which is flat as an A-module, then xdy ydx E %2Qk(A) for all xy in W.
Brown, William C., Glaz, Sarah
openaire   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Improved dynamic performance of triple active bridge DC-DC converter using differential flatness control for more electric aircraft applications

Results in Engineering
The triple active bridge (TAB) converter has been proposed to improve power density and availability in more electric aircraft applications. However, the conventional proportional-integral (PI) controller used for TAB voltage control often exhibits slow ...
Ahmed Hamed Ahmed Adam, Jiawei Chen, Minghan Xu, Salah Kamel, Emad M. Ahmed, Zaki A. Zaki   +5 more
doaj   +1 more source

Quantized multiplicative quiver varieties [PDF]

, 2011
Beginning with the data of a quiver Q, and its dimension vector d, we construct an algebra D_q=D_q(Mat_d(Q)), which is a flat q-deformation of the algebra of differential operators on the affine space Mat_d(Q).
Alekseev, Alekseev, Alekseev, Bernstein, Björk, Brylinski, Calaque, Cherednik, Cherednik, Crawley-Boevey, Crawley-Boevey, Crawley-Boevey, Crawley-Boevey, Crawley-Boevey, David Jordan, Donin, Etingof, Etingof, Etingof, Etingof, Etingof, Fock, Gan, Gan, Giaquinto, Jordan, Jordan, Joseph, Kassel, Klymik, Losev, Lu, Lyubashenko, Majid, Montarani, Mudrov, Roche, Van den Bergh, Van den Bergh, Varagnolo   +39 more
core   +3 more sources

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

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, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Efficient Flatness Based Energy Management Strategy for Hybrid Supercapacitor/Lithium-ion Battery Power System

IEEE Access, 2022
This article offers a flatness theory-based energy management strategy (FEMS) for a hybrid power system consisting of a supercapacitor (SC) and lithium-ion battery.
Salam J. Yaqoob, Seydali Ferahtia, Adel A. Obed, Hegazy Rezk, Naseer Tawfeeq Alwan, Hossam M. Zawbaa, Salah Kamel   +6 more
doaj   +1 more source

On an implicit triangular decomposition of nonlinear control systems that are 1-flat - a constructive approach

, 2014
We study the problem to provide a triangular form based on implicit differential equations for non-linear multi-input systems with respect to the flatness property.
Schlacher, Kurt, Schöberl, Markus
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Neural Network Trajectory Tracking Control on Electromagnetic Suspension Systems

Mathematics, 2023
A new adaptive-like neural control strategy for motion reference trajectory tracking for a nonlinear electromagnetic suspension dynamic system is introduced. Artificial neural networks, differential flatness and sliding modes are strategically integrated
Francisco Beltran-Carbajal, Hugo Yañez-Badillo, Ruben Tapia-Olvera, Julio C. Rosas-Caro, Carlos Sotelo, David Sotelo   +5 more
doaj   +1 more source