Results 31 to 40 of about 25,893,918 (302)

Tough Sprouting – Impact of Cadmium on Physiological State and Germination Rate of Soybean Seeds

open access: yesActa Societatis Botanicorum Poloniae, 2020
Seed germination is the earliest process in plant development and is crucial for further plant growth and fitness. The process is regulated by various internal and external factors, including soil pollutants such as nonessential metals.
Jagna Chmielowska-Bąk   +5 more
doaj   +1 more source

Neutron activation analysis of multimetallic accumulation in dolomites [PDF]

open access: yesHemijska Industrija, 2008
The reason for exploring polymetallic ores, which are found in dolomite structures of the Veovača and Borovica zone near Vareš, lies in the fact that there is very little information about its chemical structure.
Zovko Emira   +3 more
doaj   +1 more source

Recent Achievements in NAA, PAA, XRF, IBA and AMS Applications for Cultural Heritage Investigations at Nuclear Physics Institute, Řež

open access: yesPhysics, 2022
Five case studies are reported on the use of neutron and photon activation analysis (NAA and PAA, respectively), X-ray fluorescence (XRF) analysis, ion beam analysis (IBA), and accelerator mass spectrometry (AMS) for the elemental characterization or ...
Jan Kučera   +7 more
doaj   +1 more source

T-Cell activation: a queuing theory analysis at low agonist density [PDF]

open access: yes, 2006
We analyze a simple linear triggering model of the T-cell receptor (TCR) within the framework of queuing theory, in which TCRs enter the queue upon full activation and exit by downregulation.
Wedagedera, J.R.   +3 more
core   +1 more source

Radiation Shielding and Activation Analyses for Neutron Activation Measurement Facility at Advanced Radiation Technology Institute, Jeongup [PDF]

open access: yesJournal of Radiation Protection and Research
Background Experiments to measure the neutron activation cross-section using the 30 MeV cyclotron at Advanced Radiation Technology Institute are planned. Neutrons, generated during experiments, will activate the devices and affect the surrounding area of
Jounghwa Lee, Do Heon Kim, Tae-Yung Song
doaj   +1 more source

Deep evolutionary conservation of an intramolecular protein kinase activation mechanism [PDF]

open access: yes, 2012
DYRK-family kinases employ an intramolecular mechanism to autophosphorylate a critical tyrosine residue in the activation loop. Once phosphorylated, DYRKs lose tyrosine kinase activity and function as serine/threonine kinases.
Cleghon Vaughn   +31 more
core   +1 more source

NADPH oxidase is involved in regulation of gene expression and ROS overproduction in soybean (Glycine max L.) seedlings exposed to cadmium

open access: yesActa Societatis Botanicorum Poloniae, 2017
Cadmium-induced oxidative burst is partially mediated by NADPH oxidase. The aim of the present research was to evaluate the role of NADPH oxidase in soybeans’ response to short-term cadmium stress.
Jagna Chmielowska-Bąk   +6 more
doaj   +1 more source

Superintense laser-driven photon activation analysis

open access: yesCommunications Physics, 2021
Photon activation analysis is a non-destructive technique for material characterization that require high photon energies. Here, laser-driven accelerator is considered as a high-energy photon source and its optimization for photon activation analysis ...
Francesco Mirani   +3 more
doaj   +1 more source

Evaluation of Muscle Function by Means of a Muscle-Specific and a Global Index

open access: yesSensors, 2021
Gait analysis applications in clinics are still uncommon, for three main reasons: (1) the considerable time needed to prepare the subject for the examination; (2) the lack of user-independent tools; (3) the large variability of muscle activation patterns
Samanta Rosati   +6 more
doaj   +1 more source

Droplet activation, separation, and compositional analysis: laboratory studies and atmospheric measurements [PDF]

open access: yes, 2011
Droplets produced in a cloud condensation nuclei chamber (CCNC) as a function of supersaturation have been separated from unactivated aerosol particles using counterflow virtual impaction.
Cziczo, Daniel J.   +5 more
core   +1 more source

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