نتایج جستجو برای: stability centre

تعداد نتایج: 404524  

Interleukin-4 (IL-4) is a multifunctional cytokine that plays a critical role in apoptosis, differentiation and proliferation. The intensity of IL4 response depends upon binding to its receptor, IL-4R. The therapeutic efficiency of interleukins can be increased by generating structural mutants having greater stability. In the present work, attempts were made to increase the stability of human I...

2004
Stephane Durocher David G. Kirkpatrick

! #"%$& ' () Finding a centre point is a fundamental problem of geometry. The Euclidean centre, or centre of the smallest enclosing sphere, provides a natural definition for the centre of a set of points. As shown in [BBKS00] and [DK04], the Euclidean centre of a set of points * + -, is unstable; small perturbations at only a few points of can result in an arbitrarily large relative change in t...

2007
S. T. GARNER D. M. W. FRIERSON I. M. HELD O. PAULUIS G. K. VALLIS

Convection cannot be explicitly resolved in general circulation models given their typical grid size of 50 km or larger. However, by multiplying the vertical acceleration in the equation of motion by a constant larger than unity, the horizontal scale of convection can be increased at will, without necessarily affecting the larger-scale flow. The resulting hypohydrostatic system has been recogni...

2011
Stemplewski Rafał Maciaszek Janusz Osiński Wiesław Szeklicki Robert

The aim of the study was to evaluate intra- and intersession test-retest reliability for the measurements of centre of pressure displacement in quiet standing and during maximal voluntary body leaning (approximate area of stability limits). 27 elderly men participated in the study (71.4±4.9 of age). Intrasession (4 measurements with two-minute breaks) and intersession (4 measurements one week a...

Journal: :asia pacific journal of medical toxicology 0
mare oder poisoning information centre, tallinn, estonia kristiina põld department of emergency medicine, north estonian medical centre, tallinn, estonia

background: initiating a national poisoning information centre (pic) in estonia took about 12 years of challenging work on research, training and attracting governmental support and funding. in this study we described the establishment process and the profile of phone calls in the first year which the pic started to be available full time (24h/day 7days/week).  methods: this was a descriptive r...

2015
Richard Collings Joanne Paton Sam Glasser Jonathan Marsden

Relevance/Impact The control of human gait and the maintenance of balance depend upon the complex integration of visual, vestibular and somatosensory information. Dysfunction of any of these components can result in deficits in the body’s ability to maintain equilibrium of the centre of mass by counteracting the constant destabilising forces that challenge it. The role of vision in the control ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم 1391

in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

Journal: :Clinical biomechanics 2009
Murray G Tucker Justin J Kavanagh Steven Morrison Rod S Barrett

BACKGROUND Falls amongst older people have been linked to reduced postural stability and slowed movement responses. The objective of this study was to examine differences in postural stability and the speed of response between young adults, low fall-risk older adults, and high fall-risk older adults during voluntary postural sway movements. METHODS Twenty-five young adults (25+/-4 years), and...

2006
E. Vondenhoff

We discuss long-time behaviour of the Hele-Shaw flow in R with surface tension and injection or suction in the origin, for domains that are small perturbations of balls. After rescaling, radially symmetric solutions become stationary. We study the stability of these solutions. In particular, we show that all liquid can be removed by suction if the suction point and the geometric centre coincide...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...

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