Results 51 to 60 of about 838,775 (308)

Nuclear Singlet Relaxation by Chemical Exchange [PDF]

open access: yes, 2021
The population imbalance between nuclear singlet states and triplet states of strongly coupled spin-1/2 pairs, also known as nuclear singlet order, is well protected against several common relaxation mechanisms. We study the nuclear singlet relaxation of
Mohamed, Sabba   +7 more
core   +1 more source

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

open access: yesFEBS 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

Effectiveness of the Nareswari Method (Breathing, Relaxation, and Coloring) on Reducing Anxiety Levels in Postpartum Mothers"

open access: yesProfessional Health Journal
Background: The postpartum period is a period of adaptation that is quite difficult for a mother. Various complaints can arise during the postpartum period, both physical and psychological complaints.
Alfadefi Khalifatunnisak   +2 more
doaj   +1 more source

Inhibition of Uterine Contractility by Thalidomide Analogs via Phosphodiesterase-4 Inhibition and Calcium Entry Blockade

open access: yesMolecules, 2016
Uterine relaxation is crucial during preterm labor. Phosphodiesterase-4 (PDE-4) inhibitors have been proposed as tocolytics. Some thalidomide analogs are PDE-4 inhibitors.
Eduardo Fernández-Martínez   +6 more
doaj   +1 more source

Relaxing axions [PDF]

open access: yesPhysics Letters B, 1999
A mechanism for lifting the cosmological upper bound on the axion decay constant, $f_a$, is proposed. It entails the near masslessness of the radial mode whose vacuum expectation value is $f_a$. Energy in the coherent oscillations of the axion field in the early universe gets fed into the motion of the radial mode, from which it is then redshifted away.
openaire   +2 more sources

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Breaking the Cycle: How Fatigue, Cyberloafing, and Self-Regulation Influence Learning Satisfaction in Online Learning

open access: yesEducation Sciences
The transition to online learning has revolutionized educational experiences while introducing new challenges, such as managing fatigue and staying focused in digital environments. This study examines the relationship between fatigue, social cyberloafing,
Somya Agrawal, Shwetha M. Krishna
doaj   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

Integrative Therapies and Pediatric Inflammatory Bowel Disease: The Current Evidence

open access: yesChildren, 2014
Inflammatory bowel disease (IBD) primarily describes two distinct chronic conditions with unknown etiology, ulcerative colitis (UC) and Crohn’s disease (CD). UC is limited to the colon, while CD may involve any portion of the gastrointestinal tract from
Sanghamitra M. Misra
doaj   +1 more source

Efficient Static Compaction Techniques for Sequential Circuits Based on Reverse-Order Restoration and Test Relaxation [PDF]

open access: yes, 2005
The paper present efficient reverse-order-restoration (ROR)-based static test compaction techniques for synchronous sequential circuits. Unlike previous ROR techniques that rely on vector-by-vector fault-simulation-based restoration of test subsequences,
El-Maleh, Aiman   +11 more
core   +2 more sources

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