Results 131 to 140 of about 3,462 (293)

Trajectory generation for autonomous unmanned aircraft using inverse dynamics [PDF]

open access: yes, 2010
The problem addressed in this research is the in-flight generation of trajectories for autonomous unmanned aircraft, which requires a method of generating pseudo-optimal trajectories in near-real-time, on-board the aircraft, and without external ...
Drury, R. G.
core  

Cyclic azapeptide CD36 ligand attenuates cardiac injury and reduces long‐chain fatty acid accumulation after myocardial ischemia–reperfusion in mice

open access: yesFEBS Open Bio, EarlyView.
In a murine model of myocardial ischemia and reperfusion (MI/R), the CD36 azapeptide ligand MPE‐298 reduces cardiac injury and transiently lowers left ventricular long‐chain fatty acids (LCFAs) accumulation 3 h after reperfusion, accompanied by a decrease of oxidative stress and inflammation‐associated genes' expression in the heart and adipose tissue.
Jade Gauvin   +12 more
wiley   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

Dual Complex Adjoint Matrix: Applications in Dual Quaternion Research

open access: yes
Dual quaternions and dual quaternion matrices have garnered widespread applications in robotic research, and its spectral theory has been extensively studied in recent years.
Chen, Yongjun, Zhang, Liping
core  

Quaternion versus rotation matrix feedback for tigrisat attitude stabilization

open access: yes, 2020
The purpose of this paper is to compare the performances between quaternion and attitude rate feedback, and rotation matrix and attitude rate feedback used to stabilize the nominal attitude of Tigrisat nanosatellite.
Celani F.
core  

Symmetric and skew-antisymmetric solutions to systems of real quaternion matrix equations

open access: yes, 2008
In this paper we consider symmetric and skew-antisymmetric solutions to certain matrix equations over the real quaternion algebra H. First, a criterion for a quaternion matrix to be symmetric and skew-antisymmetric is given.
Wu, Wen-jing, Li, Yao-tang
core   +1 more source

Stability analysis of commutative quaternion valued neural network with time varying delays

open access: yes智能科学与技术学报, 2020
Because the traditional quaternion multiplication does not meet the commutative law,a kind of commutative quaternion was introduced,and a commutative quaternion valued neural network (CQVNN) was established,and the asymptotic stability of the CQVNN was ...
Dongyuan LIN   +4 more
doaj  

Transcripts enriched in codons that trigger P‐site tRNA‐mediated mRNA decay possess stable mRNA

open access: yesFEBS Open Bio, EarlyView.
PTMD codons were first described by Mendel et al. as mediators of an mRNA decay pathway dependent on the human protein CNOT3, homologous to yeast Not5. Our findings confirm that PTMD codons destabilize transcripts; however, unlike in yeast, the human pathway specifically targets and slightly destabilizes primarily stable mRNAs.
Rodolfo Lopes Carneiro   +1 more
wiley   +1 more source

Exponential synchronization of quaternion-valued switching neural networks with mixed delays

open access: yesNonlinear Analysis
This paper investigates the exponential synchronization problem for a class of quaternion-valued switching neural networks (QVSNNs) with mixed time delays and sampled-data control.
Wei Tan   +4 more
doaj   +1 more source

Loss of AMBRA1 activates MAPK and angiogenesis signaling pathways in melanoma cells

open access: yesFEBS Open Bio, EarlyView.
Loss of AMBRA1 in melanoma cells activates multiple oncogenic pathways associated with tumor progression. Transcriptomic and protein network analyses revealed that AMBRA1 depletion enhances MAPK/ERK signaling, angiogenesis, TGF‐β/EMT signaling, and Wnt/axon guidance pathways.
Milad Ibrahim   +4 more
wiley   +1 more source

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