نتایج جستجو برای: dependent axial movement

تعداد نتایج: 878914  

2012
K. T. R. Davies E. Koonin

We discuss axially symmetric time-dependent Hartree-Fock calculations using a finite-range modification of the Skyrme energy functional. The finite-difference forms of the coordinate-space time-dependent Hartree-Fock equations, the method of time evolution, and other numerical aspects are presented. Detailed results for 84Krinduced deep-inelastic collisions with 208Pb at E 1,b = 494 MeV and wit...

Journal: :The Journal of Cell Biology 2003
Hong-Guo Yu Douglas E. Koshland

Condensin is an evolutionarily conserved protein complex that helps mediate chromosome condensation and segregation in mitotic cells. Here, we show that condensin has two activities that contribute to meiotic chromosome condensation in Saccharomyces cerevisiae. One activity, common to mitosis, helps mediate axial length compaction. A second activity promotes chromosome individualization with th...

2000
J. P. Phillips

Planetary nebula axial ratios have been used to investigate the intrinsic structures of sources having elliptical or circular morphologies, using methods previously applied to elliptical galaxies. The results appear to indicate that most such nebulae have intrinsic axial ratios β in the range 0.92→0.75, and that gradients of surface brightness with axial ratio are most consistent with oblate sh...

Journal: :Journal of biomechanical engineering 2013
Stéphane Avril Pierre Badel Mohamed Gabr Michael A Sutton Susan M Lessner

It is known that arteries experience significant axial stretches in vivo. Several authors have shown that the axial force needed to maintain an artery at its in vivo axial stretch does not change with transient cyclical pressurization over normal ranges. However, the axial force phenomenon of arteries has never been explained with microstructural considerations. In this paper we propose a simpl...

Journal: :Gait & posture 2005
R E A Van Emmerik W J McDermott J M Haddad E E H Van Wegen

Assessments of changes in gait stability due to aging and disease are predominantly based on lower extremity kinematic and kinetic data. These gait changes are also often based on comparisons at preferred speed only. The purpose of this experiment was to: (1) examine age-related changes in range of motion and coordination of segments of the upper body during locomotion; and (2) investigate the ...

Journal: :Cell cycle 2007
Natalia Peunova Vladimir Scheinker Kandasamy Ravi Grigori Enikolopov

The establishment of a vertebrate body plan during embryogenesis is achieved through precise coordination of cell proliferation and morphogenetic cell movements. Here we show that nitric oxide (NO) suppresses cell division and facilitates cell movements during early development of Xenopus, such that inhibition of NO synthase (NOS) increases proliferation in the neuroectoderm and suppresses conv...

2012
Audrey Maillet Alexandre Krainik Bettina Debû Irène Troprès Christelle Lagrange Stéphane Thobois Pierre Pollak Serge Pinto

Levodopa (L-dopa) effects on the cardinal and axial symptoms of Parkinson's disease (PD) differ greatly, leading to therapeutic challenges for managing the disabilities in this patient's population. In this context, we studied the cerebral networks associated with the production of a unilateral hand movement, speech production, and a task combining both tasks in 12 individuals with PD, both off...

2015
Rashid Ali Monika Gupta

In this paper, a mathematical model is developed, taking into consideration the slip velocity at the wall of blood vessel of time-dependent Stenosis with unsteady flow through a tube in the presence of a Stenosis. Momentum integral method has been used to evaluate axial velocity and pressure gradient in time dependent Stenosis. Results have also been compared with and without the effect of slip...

2003
Lorenzo Fortunato Andrea Vitturi

Abstract. New analytic solutions of the quadrupole collective Bohr hamiltonian are proposed, exploiting an approximate separation of the β and γ variables to describe γ−soft prolate axial rotors. The model potential is a sum of two terms: a β−dependent term taken either with a Coulomb-like or a Kratzer-like form, and a γ−dependent term taken as an harmonic oscillator. In particular it is possib...

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