Results 91 to 100 of about 25,399 (257)

Existence of quasi-periodic orbits for twist homeomorphisms of the annulus

Topology, 1982
この論文で用いる方法は, Percivalが数値的に準周期軌道を見つけるのに使った方法 [3,4]に 密接に関係している. Percivalは自分の方法で存在定理を証明しなかった. 定理を述べるには,円環自身よりもその普遍被覆Aで仕事する方が都合がよい. A = {(x, y) ∈ R : 0 ≤ y ≤ 1}とする. T : A → Aを平行移動 T (x, y) = (x + 1, y)とする. f はAの面積保 存, 方向保存, かつ境界成分保存の同相写像であって, fT = Tfを満たすとする. 加えて, y > z なら f(x, y)1 > f(x, z)1と仮定する. ここで p = (x, y) ∈ Aのとき p1 = x と約束する. これが 「ねじれ条件」である. fi = fR
openaire   +1 more source

Safety of Daprodustat for the Treatment of Chronic Kidney Disease Anemia: Final Analysis of a Multicenter Postmarketing Surveillance Study in Japan

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This final analysis of a multicenter, prospective postmarketing surveillance study evaluated the safety of daprodustat in patients with chronic kidney disease anemia in routine clinical practice in Japan. Methods Patients who initiated daprodustat between September 2020 and July 2022 were registered.
Tadao Akizawa, Kyomi Kanaya, Kiyomi Aizawa, Masanori Onoki, Hirofumi Ozeki, Kazuko Suzuki, Ai Hayashi, Tomohiko Asamura   +7 more
wiley   +1 more source

Echocardiographic parameters in clinical responders to surgical pericardiectomy – A single center experience with chronic constrictive pericarditis

Indian Heart Journal, 2016
Background: Chronic constrictive pericarditis (CCP) is the end result of chronic inflammation of the pericardium. Developing countries continue to face a significant burden of CCP secondary to tuberculous pericarditis.
Devendra V. Patil, Girish R. Sabnis, Milind S. Phadke, Charan P. Lanjewar, Prashant Mishra, Dwarkanath V. Kulkarni, Nandkishor B. Agrawal, Prafulla G. Kerkar   +7 more
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin, Berrak Itır Aylı, Nüket Paksoy   +2 more
wiley   +1 more source

Influence Rules of Temperature Effect and Annular Conditions on Wellhead Uplift

Shiyou jixie, 2020
In order to predict the wellhead uplift in deep-water high temperature well production, uplift prediction models for single-layer free casing and multilayer casing coupling wellhead system under different temperature rise conditions.
Xie Renjun, Zhang Weiguo, Xu Guoxian, Liu Shujie, Wu Zhiqiang   +4 more
doaj  

Effects of Calcium-Channel Noise on Dynamics of Excitation-Contraction Coupling in Paced Cardiac Cells

Discrete Dynamics in Nature and Society, 2013
We study a simple discrete model with the impact of calcium-channel noise on the beat-to-beat dynamics of cardiac cells. The effects of the noise are assessed by bifurcation analysis and power spectrum analysis, respectively.
Jiying Ma, Dongmei Xiao
doaj   +1 more source

Synchronization of modulated traveling baroclinic waves in a periodically forced, rotating fluid annulus

Physical Review E, 2009
Frequency entrainment and nonlinear synchronization are commonly observed between simple oscillatory systems, but their occurrence and behavior in continuum fluid systems are much less well understood. Motivated by possible applications to geophysical fluid systems, such as in atmospheric circulation and climate dynamics, we have carried out an ...
Eccles, Fiona, Read, Peter, Castrejon-Pita, Alfonso, Haine, Thomas   +3 more
openaire   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Limit cycles bifurcations of Liénard system with a hyperelliptic Hamiltonian of degree five

Electronic Journal of Qualitative Theory of Differential Equations
We deal with limit cycles bifurcating from the period annulus of Liénard system with a hyperelliptic Hamiltonian of degree five under quartic perturbation, where Liénard system has a normal form $\dot{x}=y$, $\dot{y}=x(x-1)(x^{2}+ax+b)$, $a^{2 ...
Yi Shao, Chunxiang A
doaj   +1 more source

Global dynamics of a cubic Hamiltonian system with a periodic annulus linked to equilibria at infinity

Mathematical and Computer Modelling, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xuefang Li, Zhaoxia Wang 0005
openaire   +1 more source