We develop a new approach to the computation of the Hausdorff dimension of the invariant set of an iterated function system or IFS. In the one dimensional case, our methods require only C3 regularity of the maps in the IFS. The key idea, which has been known in varying degrees of generality for many years, is to associate to the IFS a parametrized family of positive, linear, Perron-Frobenius op...

A combination of antidepressant drugs and psychotherapy exhibits more promising efficacy in treating fear disorders than either treatment alone, but underlying mechanisms of such treatments remain largely unknown. Here we investigated the role of DNA methylation of the brain-derived neurotrophic factor (Bdnf) gene in the therapeutic effects of ketamine in combination with extinction training in...

The properties of keratin intermediate filaments (IFs) have been studied after transfection with green fluorescent protein (GFP)-tagged K18 and/or K8 (type I/II IF proteins). GFP-K8 and -K18 become incorporated into tonofibrils, which are comprised of bundles of keratin IFs. These tonofibrils exhibit a remarkably wide range of motile and dynamic activities. Fluorescence recovery after photoblea...

Intermediate filament (IF) proteins comprise a large family with more than 70 members. Initially, IFs were assumed to provide only structural reinforcement for the cell. However, IFs are now known to be dynamic structures that are involved in a wide range of cellular processes during all stages of life, from development to ageing, and during homeostasis and stress. This Commentary discusses som...

Increased use of cross-sectional imaging along with improved image quality and increased spatial resolution has led to an increase in the number of incidental findings (IFs) in radiology reports. Incidental findings, defined as findings that are unrelated to the clinical indication for the imaging examination performed, might pose special challenges for family physicians and their patients upon...

BACKGROUND In Western cohorts, the prevalence of incidental findings (IFs) or incidentalome, referring to variants in genes that are unrelated to the patient's primary condition, is between 0.86% and 8.8%. However, data on prevalence and type of IFs in Asian population is lacking. METHODS In 2 cohorts of individuals with genomic sequencing performed in Singapore (total n = 377), we extracted ...

1 Dept of Computer Science, Western Michigan University, Kalamazoo, MI 49008, U.S.A. Email: [email protected] 2 Dept of Social informatics, Kyoto University, Kyoto, Japan [email protected] 3 IFS, Technical University of Vienna, Vienna A-1040, Austria, tjoa@ifs,tuwin.ac.at 4 FAW, University of Linz, Linz, Austria, [email protected] 5 TIMC IMAG Laboratory, Faculty of Medicine ...

In this paper we study the absolute continuity of self-similar measures defined by iterated function systems (IFS) whose contraction ratios are not uniform. We introduce a transversality condition for a multi-parameter family of IFS and study the absolute continuity of the corresponding self-similar measures. Our study is a natural extension of the study of Bernoulli convolutions by Solomyak, P...

In IFS fractals generated by affine transformations with arbitrary coefficients often there is a lot of chaotic noise. In the present paper we study the effect of related trigonometric coefficients on affine transformations in terms of the IFS fractals generated by them. The use of related trigonometric functions as coefficients reduces the randomness of the scatter and generates meaningful sha...

The expression of the intermediate filament (IF) protein nestin is closely associated with rapidly proliferating progenitor cells during neurogenesis and myogenesis, but little is known about its function. In this study, we examine the effects of nestin expression on the assembly state of vimentin IFs in nestin-free cells. Nestin is introduced by transient transfection and is positively correla...