Flip bifurcations of two systems of difference equations

2020 ◽  
Vol 43 (17) ◽  
pp. 9582-9597 ◽  
Author(s):  
Qi Cheng ◽  
Shengfu Deng
Keyword(s):  
Difference Equations ◽  
Two Systems

scholarly journals On Two Systems of Difference Equations

2010 ◽  
Vol 2010 ◽  
pp. 1-4 ◽  
Author(s):  
Bratislav Iričanin ◽  
Stevo Stević
Keyword(s):  
Difference Equations ◽  
Two Systems

We give very short and elegant proofs of the main results in the work of Yalcinkaya et al. (2008).

scholarly journals On a Periodic System of Difference Equations

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Stevo Stević ◽  
Josef Diblík ◽  
Bratislav Iričanin ◽  
Zdeněk Šmarda
Keyword(s):  
Difference Equations ◽  
Periodic System ◽  
System Of Difference Equations ◽  
Two Systems ◽  
Elegant Proof

Here we give a very short and elegant proof of an extension of two recent results on global periodicity of two systems of difference equations in a work of Elsayed et al. 2012.

Semistability of two systems of difference equations using centre manifold theory

2016 ◽  
Vol 39 (18) ◽  
pp. 5216-5222 ◽  
Author(s):  
N. Psarros ◽  
G. Papaschinopoulos ◽  
C. J. Schinas
Keyword(s):  
Difference Equations ◽  
Centre Manifold ◽  
Two Systems ◽  
Manifold Theory

Nonhuman sequence learning findings argue against Hoerl and McCormack's two systems of temporal cognition

2019 ◽  
Vol 42 ◽  
Author(s):  
Benjamin J. De Corte ◽  
Edward A. Wasserman
Keyword(s):  
Sequence Learning ◽  
Past Research ◽  
Ordinal Position ◽  
Temporal Cognition ◽  
Two Systems

Abstract Hoerl & McCormack propose that animals learn sequences through an entrainment-like process, rather than tracking the temporal addresses of each event in a given sequence. However, past research suggests that animals form “temporal maps” of sequential events and also comprehend the concept of ordinal position. These findings suggest that a clarification or qualification of the authors’ hypothesis is needed.

Comparison of two devices for measuring exercise transcutaneous oxygen pressures in patients with claudication

VASA ◽  
2015 ◽  
Vol 44 (5) ◽  
pp. 355-362 ◽  
Author(s):  
Marie Urban ◽  
Alban Fouasson-Chailloux ◽  
Isabelle Signolet ◽  
Christophe Colas Ribas ◽  
Mathieu Feuilloy ◽  
...  
Keyword(s):  
Oxygen Pressure ◽  
Optical Sensors ◽  
Chemical Sensors ◽  
Transcutaneous Oxygen ◽  
Starting Values ◽  
Two Systems ◽  
Transcutaneous Oxygen Pressure ◽  
New Sensors ◽  
Changes Over Time ◽  
Over Time

Abstract. Summary: Background: We aimed at estimating the agreement between the Medicap® (photo-optical) and Radiometer® (electro-chemical) sensors during exercise transcutaneous oxygen pressure (tcpO2) tests. Our hypothesis was that although absolute starting values (tcpO2rest: mean over 2 minutes) might be different, tcpO2-changes over time and the minimal value of the decrease from rest of oxygen pressure (DROPmin) results at exercise shall be concordant between the two systems. Patients and methods: Forty seven patients with arterial claudication (65 + / - 7 years) performed a treadmill test with 5 probes each of the electro-chemical and photo-optical devices simultaneously, one of each system on the chest, on each buttock and on each calf. Results: Seventeen Medicap® probes disconnected during the tests. tcpO2rest and DROPmin values were higher with Medicap® than with Radiometer®, by 13.7 + / - 17.1 mm Hg and 3.4 + / - 11.7 mm Hg, respectively. Despite the differences in absolute starting values, changes over time were similar between the two systems. The concordance between the two systems was approximately 70 % for classification of test results from DROPmin. Conclusions: Photo-optical sensors are promising alternatives to electro-chemical sensors for exercise oximetry, provided that miniaturisation and weight reduction of the new sensors are possible.

A Tale of Two Systems: Trauma and Behavioral and Physical Health Status in Child Welfare and Juvenile Justice Youth

2014 ◽  
Author(s):  
Erynne H. Shatto ◽  
Sarah J. Fucillo ◽  
Z. Kane Jones ◽  
James R. Stefurak ◽  
Valerie Bryan
Keyword(s):  
Health Status ◽  
Child Welfare ◽  
Juvenile Justice ◽  
Physical Health ◽  
Physical Health Status ◽  
Two Systems
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