Results 41 to 50 of about 195,616 (345)

Internodal Analysis of Avicennia marina in the Western Arabian Gulf

open access: yesFrontiers in Marine Science, 2021
The growth of Avicennia marina (A. marina) was not previously assessed using internodal analysis in the Western Arabian Gulf. The node production in 40 branches/axillary shoot in Syhat city, Saudi Arabia, ranged from 6 to 9 nodes y–1.
Hanan Almahasheer
doaj   +1 more source

Mid-term periodicities of cosmic ray intensities

open access: yesJournal of Advanced Research, 2011
Galactic cosmic ray intensities (GCRs) observed by five neutron monitors (NMs) have been used to study cosmic ray modulations between 1971 and 2007. The influence of interplanetary magnetic polarity (IMF) states has been studied for the A  0 epochs.
Mohamed A. El-Borie   +2 more
doaj   +1 more source

Lower limb kinematic, kinetic and spatial-temporal gait data for healthy adults using a self-paced treadmill

open access: yesData in Brief, 2021
Through gait analysis, gait phases can be identified, the kinematic and kinetic parameters of human gait events can be determined, and quantitative evaluation can be undertaken. This data article is the first to report a comprehensive data set on a large
Shayan Bahadori   +2 more
doaj   +1 more source

Non-Stationary Modelling of Extreme Temperatures in a Mountainous Area of Greece

open access: yesRevstat Statistical Journal, 2016
The generalised extreme value (GEV) distribution is often fitted to environmental time series of extreme values such as annual maxima and minima of temperatures.
Chrys Caroni , Dionysia Panagoulia
doaj   +1 more source

Recoherence in the entanglement dynamics and classical orbits in the N-atom Jaynes-Cummings model [PDF]

open access: yes, 2001
The rise in linear entropy of a subsystem in the N-atom Jaynes-Cummings model is shown to be strongly influenced by the shape of the classical orbits of the underlying classical phase space: we find a one-to-one correspondence between maxima (minima) of ...
A. Ekert   +44 more
core   +2 more sources

On critical points of the objective functional for maximization of qubit observables

open access: yes, 2015
We study unconstrained control of a two-level quantum system and analyse critical points of the objective functional which represents quantum average of system observable at some final time $T$. In Proc. Steklov Inst. Math.
Il'in, Nikolay, Pechen, Alexander
core   +1 more source

Extreme behavior of multivariate phase-type distributions [PDF]

open access: yes, 2007
This paper investigates the limiting distributions of the componentwise maxima and minima of suitably normalized iid multivariate phase-type random vectors. In the case of maxima, a large parametric class of multivariate extreme value (MEV) distributions
Asimit, A.V., Jones, B.
core   +1 more source

Age and Sex Variability of Initial Parts of the QRS Complex Displayed in Isointegral Maps of Young People

open access: yesActa Medica, 2004
Although body surface electrocardiographic mapping is used also in clinical practice, there are only a few papers concerning the isointegral maps (IIMs) in children.
Katarína Kozlíková, Juraj Martinka
doaj   +1 more source

Magnetoresistance Oscillations in Two-dimensional Electron Systems Induced by AC and DC Fields

open access: yes, 2007
We report on magnetotransport measurements in a high-mobility two-dimentional electron system subject simultaneously to AC (microwave) and DC (Hall) fields. We find that DC excitation affects microwave photoresistance in a nontrivial way. Photoresistance
K. W. West   +4 more
core   +1 more source

Sums of minima and maxima

open access: yesDiscrete Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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