Results 41 to 50 of about 376,527 (305)

Application of tritium (3H) as a tracer in seepage studies through hydraulic structures

open access: yesHydroResearch, 2022
Water plays a pivotal role in various agricultural and industrial activities through the construction of hydraulic structures like dams, canals or hydroelectric power station.
Rolland Andrade   +2 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

1,2-3H-Cholesterol as a tracer in studies of human cholesterol metabolism

open access: yesJournal of Lipid Research, 1967
1,2-3H-Cholesterol was fed to a subject together with 4-14C-cholesterol at a known 3H/14C ratio. The ratio was satisfactorily preserved in cholesterol recovered from plasma, red cells, and bile, and in bile acids of bile.Isotopic fractionation was seen ...
Peter D.S. Wood   +4 more
doaj   +1 more source

TRACER STUDI FKIP

open access: yesEquilibrium: Jurnal Penelitian Pendidikan dan Ekonomi, 2018
AbstrakPerubahan merupakan hal yang niscaya dalam kehidupan manusia. Demikian pula orientasi pendidikan yang semula bertumpu pada asumsi ilmu untuk ilmu mengalami perubahan menjadi ilmu untuk kemanfaatan hajat hidup orang banyak. Demikian pula secara kelembagaan, lembaga pendidikan ditagih oleh stakeholders tentang kiprah nyata mencerdaskan generasi ...
openaire   +1 more source

Lactate: brain fuel in human traumatic brain injury: a comparison with normal healthy control subjects. [PDF]

open access: yes, 2015
We evaluated the hypothesis that lactate shuttling helps support the nutritive needs of injured brains. To that end, we utilized dual isotope tracer [6,6-(2)H2]glucose, that is, D2-glucose, and [3-(13)C]lactate techniques involving arm vein tracer ...
Brooks, George A   +6 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Application of an Instrumented Tracer in an Abrasion Mill for Rock Abrasion Studies [PDF]

open access: yes, 2011
One of research fields in studying dynamics of gravel-bed rivers is the interaction between sediment particles in motion and incision rates in rock-bottom river reaches.
Hoey, Trevor   +3 more
core  

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Dynamical fluctuations of a tracer coupled to active and passive particles

open access: yesJournal of Physics: Complexity, 2023
We study the induced dynamics of an inertial tracer particle elastically coupled to passive or active Brownian particles. We integrate out the environment degrees of freedom to obtain the exact effective equation of the tracer—a generalized Langevin ...
Ion Santra
doaj   +1 more source

Investigations of a compartmental model for leucine kinetics using nonlinear mixed effects models with ordinary and stochastic differential equations

open access: yes, 2011
Nonlinear mixed effects models represent a powerful tool to simultaneously analyze data from several individuals. In this study a compartmental model of leucine kinetics is examined and extended with a stochastic differential equation to model non-steady
Adiels, Martin   +4 more
core   +1 more source

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