Results 51 to 60 of about 15,899,764 (275)

The Effect of Device-Controlled Breathing on the Pulse Arrival Time and the Heart Rate Asymmetry Parameters in Healthy Volunteers

open access: yesApplied Sciences, 2023
Background: The development of wearables has facilitated the monitoring of biomedical parameters in everyday life. One of the most common sensors of these gadgets is the photoplethysmograph (PPG); hence, the proper processing and interpretation of the ...
Bella Eszter Ajtay   +2 more
doaj   +1 more source

Traffic incident clearance time and arrival time prediction\ud based on hazard models [PDF]

open access: yes, 2014
Accurate prediction of incident duration is not only important information of Traffic Incident Management System, but also an ffective input for travel time prediction.
Qu, Ming   +3 more
core   +2 more sources

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

Emitter location via Kalman filtering of signal time difference of arrival [PDF]

open access: yes, 1994
A relatively simple time domain method is developed to calculate the time of arrival for radar signals. The error present in the estimate of the time of arrival for a single pulse and a burst of pulses are developed and the effects of SNR, PRF ...
Williamson, Richard William
core   +2 more sources

Pulse Arrival Time Glitches in GRO J1744−28 [PDF]

open access: yesThe Astrophysical Journal, 1996
We observe glitches in the arrival times of X-ray pulses from GRO J1744-28 associated with the large X-ray bursts observed from this source. In early observations, the pulse arrival time becomes delayed by 28 ms (6% of the 467 ms pulsar period) following bursts while the shape of the nearly sinusoidal light curve is essentially unchanged.
M. J. Stark   +3 more
openaire   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Intraoperative Imaging of Cortical Blood Flow by Camera-Based Photoplethysmography at Green Light

open access: yesApplied Sciences, 2020
Intraoperative evaluation of blood perfusion in the brain cortex is an important but hitherto unresolved problem. Our aim was to demonstrate the feasibility of cerebral microcirculation assessment during open brain surgery by using camera-based ...
Oleg V. Mamontov   +3 more
doaj   +1 more source

Pulse deinterleaving based on fusing PDWs and PRI extraction process for radar-assisted edge devices considering computational costs

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
Deinterleaving or radar pulse separation is a very important goal in terms of radar sources for identifying and implementing electronic warfare systems.
Hamid Hasani, Mohammad R. Khosravi
doaj   +1 more source

Mitochondrial translation and coordinated cytosolic translation in metabolic homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Mitochondrial function depends on coordinated protein production from the nuclear and mitochondrial genomes. This review highlights how cytosolic and mitochondrial translation, mRNA localization, protein import, and respiratory complex assembly are integrated to maintain mitochondrial proteostasis and function.
Boseon Kim   +4 more
wiley   +1 more source

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