scholarly journals Non Linear Weight Gain with Long Term Overfeeding in Man

1993 ◽  
Vol 1 (3) ◽  
pp. 179-185 ◽  
Author(s):  
Olivier Deriaz ◽  
Angelo Tremblay ◽  
Claude Bouchard
Keyword(s):  
1994 ◽  
Vol 33 (01) ◽  
pp. 81-84 ◽  
Author(s):  
S. Cerutti ◽  
S. Guzzetti ◽  
R. Parola ◽  
M.G. Signorini

Abstract:Long-term regulation of beat-to-beat variability involves several different kinds of controls. A linear approach performed by parametric models enhances the short-term regulation of the autonomic nervous system. Some non-linear long-term regulation can be assessed by the chaotic deterministic approach applied to the beat-to-beat variability of the discrete RR-interval series, extracted from the ECG. For chaotic deterministic systems, trajectories of the state vector describe a strange attractor characterized by a fractal of dimension D. Signals are supposed to be generated by a deterministic and finite dimensional but non-linear dynamic system with trajectories in a multi-dimensional space-state. We estimated the fractal dimension through the Grassberger and Procaccia algorithm and Self-Similarity approaches of the 24-h heart-rate variability (HRV) signal in different physiological and pathological conditions such as severe heart failure, or after heart transplantation. State-space representations through Return Maps are also obtained. Differences between physiological and pathological cases have been assessed and generally a decrease in the system complexity is correlated to pathological conditions.


2018 ◽  
Vol 52 ◽  
pp. 101-109 ◽  
Author(s):  
Irene Headen ◽  
Mahasin Mujahid ◽  
Julianna Deardorff ◽  
David H. Rehkopf ◽  
Barbara Abrams

2015 ◽  
Vol 8 (3) ◽  
pp. 133-137 ◽  
Author(s):  
Zachary M Ferraro ◽  
Fernanda Contador ◽  
Afaf Tawfiq ◽  
Kristi B Adamo ◽  
Laura Gaudet

This narrative review discusses gestational weight gain (GWG) and medical outcomes of pregnancy, including metabolic, cardiovascular, respiratory, musculoskeletal and psychiatric systems. Taken as a whole, the available evidence shows that excessive GWG increases the risk of all medical complications of pregnancy, and negatively impacts the long-term health and weight of both mothers and their offspring. Briefly, interventions to encourage appropriate GWG are discussed and readers are directed to resources to facilitate discussion of pregnancy weight.


Author(s):  
Younesse El Menyari

The main goal of this paper is to examine whether shocks had a permanent or temporary effect on international tourist arrivals in Morocco for its top 8 source countries. For this purpose, we apply the Harvey, Leybourne and Xiao (2008) linearity test and the linear tests and non-linear unit root (Elliott, Rothenberg, & Stock, 1996; Hepsag, 2019; Kruse, 2011; Lee & Strazicich, 2004). The results show that the series with linear characteristics are tourist arrivals from UK and USA and those with non-linear characteristics are tourist arrivals from Belgium, France, Spain, Italy, Netherlands and Germany. The unit root tests reject the null hypothesis of a non-stationarity in tourist arrivals from all countries except the Germany. The implication of these findings is that the shocks had a temporary effect on tourism arrivals from 7 markets to Morocco. Therefore, Morocco's tourism sector is a sustainable industry as external shocks have not had long term disruption in the flow of tourist arrivals.


2018 ◽  
Vol 12 (3) ◽  
pp. 231-239
Author(s):  
Rosa M. Agra-Bermejo ◽  
Rocio Gonzalez-Ferreiro ◽  
J. Nicolos Lopez-Canoa ◽  
Alfonso Varela-Roman ◽  
Ines Gomez-Otero ◽  
...  

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