Results 81 to 90 of about 11,034,732 (316)

Computation of Kalman Decompositions of Periodic Systems [PDF]

, 2003
We consider the numerically reliable computation of reachability and observability Kalman decompositions of a periodic system with time-varying dimensions.
A. Varga, Andras Varga, Varga, A., Varga, Andras   +3 more
core   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Periodic table-based compositional descriptors for accelerating electrochemical material discovery: Li-ion conductors and oxygen evolution electrocatalysts

Science and Technology of Advanced Materials: Methods
The discovery of high-performance electrochemical materials is essential for sustainable energy technologies, yet conventional methods rely on trial-and-error experiments, time-consuming computations, and detailed structural data.
Yen-Ju Wu, Yibin Xu, Lei Fang, Wenqin Peng, Ken Sakaushi, Meiqi Zhang, Masao Arai, Yukinori Koyama   +7 more
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

EFFECT OF PERIODIC TABLE PUZZLE GAME ON SENIOR SCHOOL CHEMISTRY STUDENT ACADEMIC PERFORMANCE

Research in Education and Rehabilitation
This study investigated the effects of periodic table puzzle game on secondary school students’ academic performance in Chemistry, focusing on the topic of the periodic table.
David Adeyemi Aladesuyi, Florence Omosholape Abidoye, Florence Omosholape Abidoye, Kayode Ojo Afolabi, Adekunle Omotayo Abidoye   +4 more
doaj  

CdTe and CdSe Quantum Dots Cytotoxicity: A Comparative Study on Microorganisms

Sensors, 2011
Quantum dots (QDs) are colloidal semiconductor nanocrystals of a few nanometers in diameter, being their size and shape controlled during the synthesis.
Denise Feder, Rubem F. S. Menna-Barreto, Carlos L. Cesar, Jacenir R. Santos-Mallet, Suzete A.O. Gomes, Cecilia Stahl Vieira, Diogo B. Almeida   +6 more
doaj   +1 more source

Prediction of crystalline Ta4O9 phase using first principles-based cluster expansion calculations

APL Materials, 2020
Tantalum is the only element of Group 5 in the periodic table that lacks any experimental reports on the existence of reduced crystalline oxide between the pentoxide (Ta2O5) and the dioxide (TaO2).
Christian Søndergaard Pedersen, Jin Hyun Chang, Yang Li, Nini Pryds, Juan Maria Garcia Lastra   +4 more
doaj   +1 more source

The ubiquitin system in normal and infected germinal center B cells

FEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis, Lesly Mejia, Emily K Moser   +2 more
wiley   +1 more source

Structural volumetric and Periodic Table DTI patterns in Complex Normal Pressure Hydrocephalus—Toward the principles of a translational taxonomy

Frontiers in Human Neuroscience
IntroductionWe previously proposed a novel taxonomic framework to describe the diffusion tensor imaging (DTI) profiles of white matter tracts by their diffusivity and neural properties.
Christine Lock, Emma M. S. Toh, Nicole C. Keong, Nicole C. Keong   +3 more
doaj   +1 more source