Money and Debt Demand: A Cyclic Model

2021 ◽  
Author(s):  
Caisheng Zeng
Keyword(s):  
Cyclic Model

Coherent and dissipative wave packet dynamics in cyclic model systems with four equivalent potential minima

1994 ◽  
Vol 100 (12) ◽  
pp. 9007-9017 ◽  
Author(s):  
O. Brackhagen ◽  
O. Kühn ◽  
J. Manz ◽  
V. May ◽  
R. Meyer
Keyword(s):  
Wave Packet ◽  
Model Systems ◽  
Equivalent Potential ◽  
Cyclic Model ◽  
Wave Packet Dynamics

scholarly journals Non-Linear Maximum Rank Distance Codes in the Cyclic Model for the Field Reduction of Finite Geometries

10.37236/6106 ◽  
2017 ◽  
Vol 24 (2) ◽  
Author(s):  
Nicola Durante ◽  
Alessandro Siciliano
Keyword(s):  
Vector Space ◽  
Bilinear Forms ◽  
Geometric Description ◽  
Finite Geometries ◽  
Rank Distance ◽  
Maximum Rank ◽  
Cyclic Model ◽  
Finite Vector ◽  
Non Linear ◽  
Rank Distance Codes

In this paper we construct infinite families of non-linear maximum rank distance codes by using the setting of bilinear forms of a finite vector space. We also give a geometric description of such codes by using the cyclic model for the field reduction of finite geometries and we show that these families contain the non-linear maximum rank distance codes recently provided by Cossidente, Marino and Pavese.

Importance of oscillations in alveolar gas concentrations in the analysis of rebreathing data

1986 ◽  
Vol 61 (3) ◽  
pp. 1104-1113 ◽  
Author(s):  
K. H. Weisiger ◽  
G. D. Swanson
Keyword(s):  
Time Course ◽  
Continuous Process ◽  
Inert Gases ◽  
Accurate Estimation ◽  
Gas Solubility ◽  
Estimation Errors ◽  
Gas Uptake ◽  
Cyclic Model ◽  
Low Solubility ◽  
Cyclic Data

Cyclic rebreathing of a soluble inert gas can be used to estimate lung tissue volume (Vt) and pulmonary blood flow (Qc). A recently proposed method for analyzing such cyclic data (Respir. Physiol. 48: 255–279, 1982) mathematically assumes that ventilation is a continuous process. However, neglecting the cyclic nature of ventilation may prevent the accurate estimation of Vt and Qc. We evaluated this possibility by simulating the uptake of soluble inert gases during rebreathing using a cyclic model of gas exchange. Under cyclic uptake conditions alveolar gases follow an oscillating time course, because gas concentrations tend to increase during inspiration and to decrease during expiration. We found that neglecting these alveolar gas oscillations leads to the underestimation of soluble gas uptake by blood, particularly during the early rebreathing breaths. When continuous ventilation is assumed Vt and Qc are overestimated unless rapid rebreathing rates, large tidal volumes, and gases of moderately low solubility are used. Under these conditions the amplitude of the cyclic oscillations is minimized, the alveolar time course more closely resembles that expected from continuous ventilation, and the resulting errors are minimized. Alternatively, when the effect of oscillating alveolar gas concentrations on mass transfer are considered, these estimation errors can be eliminated without restricting rebreathing rate or gas solubility. We conclude that failure to consider the effect of cyclic rebreathing on the time course of alveolar gas concentrations may result in significant errors when evaluating rebreathing data for Vt and Qc.

Effect of Napip on K0 activation of the Na-K pump in adult rat cardiac myocytes

1994 ◽  
Vol 266 (1) ◽  
pp. C37-C41 ◽  
Author(s):  
T. A. Kinard ◽  
X. Y. Liu ◽  
S. Liu ◽  
J. R. Stimers
Keyword(s):  
Environmental Factors ◽  
Cardiac Myocytes ◽  
Pump Current ◽  
Apparent Affinity ◽  
Adult Rat ◽  
Cyclic Model ◽  
Pump Activity ◽  
Dose Dependent ◽  
Rat Cardiac Myocytes ◽  
External K

To determine if environmental factors influence the external K (K0) dependence of Na-K pump current (Ip), we systematically varied internal (pipette) Na (Napip) and Na-K pump activity while measuring the K0 dependence in adult rat cardiac myocytes. For each Napip, reactivation of Ip by K0 was dose dependent. The maximal Ip (Ipmax) and apparent affinity for K0 binding to the Na-K pump (K0.5) increased as Napip increased. The results of making an equimolar substitution of tetramethylammonium for K and Cs, and partial Ip inhibition with ouabain, also showed that Ipmax and K0.5 increased as Napip increased. We simulated pump activity as a function of intracellular Na (Nai) and K0 using a cyclic model of the Na-K pump and found that the model predicts K0.5 for K0 binding increases as Na increases, even when the conditions are adjusted by removing pipette K and partial pump inhibition with ouabain.

scholarly journals A Cyclic Model of the Universe

Science ◽  
2002 ◽  
Vol 296 (5572) ◽  
pp. 1436-1439 ◽  
Author(s):  
P. J. Steinhardt
Keyword(s):  
Cyclic Model ◽  
The Universe

scholarly journals A Cyclic Model of a Finite Automaton

1972 ◽  
Vol 5 (1) ◽  
pp. 325-330 ◽  
Author(s):  
E.A. Yakubaitis
Keyword(s):  
Finite Automaton ◽  
Cyclic Model

ChemInform Abstract: Chelates as Intermediates in Nucleophilic Additions to Alkoxy Ketones According to Cram′s Rule (Cyclic Model).

ChemInform ◽  
2010 ◽  
Vol 23 (26) ◽  
pp. no-no
Author(s):  
X. CHEN ◽  
E. R. HORTELANO ◽  
E. L. ELIEL ◽  
S. V. FRYE
Keyword(s):  
Nucleophilic Additions ◽  
Cyclic Model
Sign in / Sign up

Export Citation Format

Share Document