The purpose was to evaluate the effect of the disease duration prior to treatment, thyroid hormones level, or both on the reversibility of dilated cardiomyopathy. Between January 2006 and December 2010, a longitudinal study with a 6 months follow-up was carried on. One hundred and seventy patients with hyperthyroidism were referred to the cardiologist, and 127 had a 6 months followup after anti...

The choice of inhaler device for bronchodilator reversibility is crucial since suboptimal inhalation technique may influence the result. On the other hand, bronchodilator response also varies from time to time and may depend on patient characteristics. In this study, patients with airway obstruction (forced expiratory volume in 1 second [FEV1]/forced vital capacity [FVC] ratio <70% in chronic o...

IS IT REALLY REVERSIBLE? In the January/February 2001 issue of the Journal of Refractive Surgery, Asbell and colleagues reported the reversible effect of the intrastromal corneal ring segments (Intacs). 1 They presented compelling evidence to suggest that Intacs can be removed with full reversibility of refractive effect. This is the first corneal refractive surgical procedure to claim reversib...

In this paper, we analyze a possibility of reversibility of datahiding techniques based on random binning from multimedia perspectives. We demonstrate the capabilities of unauthorized users to perform hidden data removal using solely a signal processing approach based on optimal estimation as well as consider reversibility on the side of authorized users who have the knowledge of key used for t...

Watson-Crick finite automata were inspired by formal language theory, finite states machines and some ingredients from DNA computing such as working with molecules as double stranded complementary strings. Here, we define different kinds of regular reversibility in this model. Mainly, we will explore regular reversibility in the upper (lower) strand and in the double strand.

INTRODUCTION This study aims at describing the epidemiological and clinical characteristics, severity, reversibility testing and response to treatment using simple spirometry in asthmatic patients attending a model specialized Asthma Care Center. METHODS Eligible subjects must have a suggestive clinical picture and confirmed by spirometry to have a 12% plus 200ml absolute increase in FEV1 eit...

Reversibility of dynamical processes arises in many physical dynamical systems. For example, lossless Newtonian and Hamiltonian mechanical systems exhibit trajectories that can be obtained by time going forward and backward, providing an example of time symmetry that arises in natural sciences. Another example of such time symmetry is the phenomenon known as Poincaré recurrence wherein the dyna...

in this work, the precipitation and re-dissolution of asphaltenes were studied for an iranian relatively heavy crude oil. a series of experiments were designed and carried out to quantitatively examine the reversibility of asphaltenes precipitation upon the change in the solvent concentration along with the temperature. n-heptane was used as the precipitant, and a temperature range of 30 to 70°...

This study describes the feasibility, repeatability, and interrater reliability of the measurement of airway resistance by the interrupter technique (Rint) in children 2-5 yrs of age, and examines whether reversibility to bronchodilator can be demonstrated in wheezy children. The mean of six Rint values was taken as a measurement. If subjects could complete one measurement and then a second 15 ...

Background—The incremental prognostic value of rest-redistribution Tl compared with stress and rest perfusion abnormalities has not been defined. Methods and Results—We identified 458 patients who underwent rest Tl /stress (exercise or adenosine) Tc sestamibi single-photon emission computed tomography (SPECT) and had late (18 to 24 hours) Tl imaging, were not revascularized within 60 days of SP...