Nonlinear Dynamics

Publication Title: 
Scientific Reports

Assessment of hypnotic susceptibility is usually obtained through the application of psychological instruments. A satisfying classification obtained through quantitative measures is still missing, although it would be very useful for both diagnostic and clinical purposes. Aiming at investigating the relationship between the cortical brain activity and the hypnotic susceptibility level, we propose the combined use of two methodologies - Recurrence Quantification Analysis and Detrended Fluctuation Analysis - both inherited from nonlinear dynamics.

Author(s): 
Chiarucci, Riccardo
Madeo, Dario
Loffredo, Maria I.
Castellani, Eleonora
Santarcangelo, Enrica L.
Mocenni, Chiara
Publication Title: 
Homeopathy: The Journal of the Faculty of Homeopathy

The possibility that non-linear quantum theory could be used to model PPR entanglement is discussed in relation to the treatment of miasms. In this model, miasms are imagined as disease entities behaving like solitary waves, or 'solitons' which, when trapped in a therapeutic state space, requiring equally soliton-like (miasmatic or high potency) remedies to effectively 'annihilate' them.

Author(s): 
Milgrom, L. R.
Publication Title: 
Journal of Pharmacokinetics and Pharmacodynamics

Despite the impact of red blood cell (RBC) Life-spans in some disease areas such as diabetes or anemia of chronic kidney disease, there is no consensus on how to quantitatively best describe the process. Several models have been proposed to explain the elimination process of RBCs: random destruction process, homogeneous life-span model, or a series of 4-transit compartment model. The aim of this work was to explore the different models that have been proposed in literature, and modifications to those.

Author(s): 
LledÛ-GarcÌa, RocÌo
Kalicki, Robert M.
Uehlinger, Dominik E.
Karlsson, Mats O.
Publication Title: 
International journal of pediatric obesity: IJPO: an official journal of the International Association for the Study of Obesity

OBJECTIVE: To determine the relative importance of familial, dietary, behavioral, psychological and social risk factors for predicting body mass index (BMI) change, and onset of overweight and obesity among adolescent girls. METHODS: Data from the NHLBI Growth and Health Study (n = 2 150), a longitudinal cohort of girls, were used to identify the most important predictors of change in BMI percentile between the ages of 9 and 19 years, and second, risk for becoming overweight and obese.

Author(s): 
Rehkopf, David H.
Laraia, Barbara A.
Segal, Mark
Braithwaite, Dejana
Epel, Elissa
Publication Title: 
Twin Research: The Official Journal of the International Society for Twin Studies

Non-linear epigenetic processes are a potential underlying source of phenotypic differences in development. Simulation studies of twin pairs using simple non-linear development models characterised by chaotic or near-chaotic behavior are presented. The effect of chaotic processes on correlations is to lower them from their initial values, but high initial correlations are affected much less by chaotic and near-chaotic processes than intermediate correlations.

Author(s): 
Eaves, L. J.
Kirk, K. M.
Martin, N. G.
Russell, R. J.
Publication Title: 
The Psychoanalytic Study of the Child

The diversity of theories regarding children's development is commensurate with the enormity of the task of seeking ordering designs for explaining behavioral and psychic ontogeny in infants, children, and adults. The purpose of this paper is to look at these developmental theories as epigenetic stages themselves. I shall suggest that the next stage in the epigenesis of theories of development is to see variability and disorder on a continuum with order and stability, as a constant dialectic that moves development along, whether at the level of the cell or at the level of fantasy.

Author(s): 
Mayes, L. C.
Publication Title: 
Journal of Theoretical Biology

Mechanistic 'physics' models of protein folding fail to account for the observed spectrum and rate of protein folding and aggregation disorders in human populations, showing that more appropriately in vivo paradigms reflecting biological and other embedding contexts are needed for understanding the etiology, prevention, and treatment of these diseases. Here, a topological rate distortion analysis is applied to the problem that is analogous to Tlusty (2007) elegant exploration of the genetic code.

Author(s): 
Wallace, Rodrick
Publication Title: 
Nonlinear Dynamics, Psychology, and Life Sciences

Following a suggestion of Strogatz, this paper examines a sequence of dynamical models involving coupled ordinary differential equations describing the time-variation of the love or hate displayed by individuals in a romantic relationship. The models start with a linear system of two individuals and advance to love triangles and finally to include the effect of nonlinearities, which are shown to produce chaos.

Author(s): 
Sprott, J. C.
Publication Title: 
Nonlinear Dynamics, Psychology, and Life Sciences

A sequence of models for the time evolution of one's happiness in response to external events is described. These models with added nonlinearities can produce stable oscillations and chaos even without external events. Potential implications for psychotherapy and a personal approach to life are discussed.

Author(s): 
Sprott, J. C.
Publication Title: 
Social Neuroscience

Neuroscience research suggests that inferring neutral intentions of other people recruits a specific brain network within the inferior fronto-parietal action observation network as well as a putative social network including brain areas subserving theory of mind, such as the posterior superior temporal sulcus (pSTS), the temporo-parietal junction (TPJ), and also the anterior cingulate cortex (ACC).

Author(s): 
Wang, Yiwen
Huang, Liang
Zhang, Wei
Zhang, Zhen
Cacioppo, Stephanie

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