Motivated by brane cosmology we solve the Einstein equations with a time dependent cosmological constant. Assuming that at an early epoch the vacuum energy scales as 1/logt, we show that the universe passes from a fast growing phase (inflation) to an expanding phase in a natural way.

the famous theory in the field of textual meaning and interpretation is called “intentionalism” and on that basis, “the intention of the author of a work is in relation to the meaning of the work or its interpretation”. in recent years, a theory has been widely developed in contrast to the (above) famous theory, titled the theory of “anti-intentionalism”, or in its extreme form, the theory of “...

Introduction Evaluation of the delivered dose of externally wedged photon beams by external diode dosimeters during the treatment process requires the estimation of exit surface dose correction factors in various wedge angles and field sizes. Materials and Methods A system of absorbed dose evaluation, using p-type diode dosimeters placed on the exit surface of a phantom, was characterized for e...

abstract among activities that can be used to prevent piping phenomena and reduce seepage and exit gradient are installation of cutoff wall and drain under hydraulic structures. hence in this study, to investigating the influence of each mentioned parameter on uplift force and exit gradient a computer model has developed in which general equation of fluid flow into the isotropic and anisotropic...

BACKGROUND Role conflict can motivate behavior change. No prior studies have explored the association between parent/smoker role conflict and readiness to quit. The objective of the study is to assess the association of a measure of parent/smoker role conflict with other parent and child characteristics and to test the hypothesis that parent/smoker role conflict is associated with a parent's in...

Embedded or exit clinical trial interviews are increasingly being used, and recommended by regulators, to explore patients’ real-world experience of changes observed understand the impact these in daily life. Such qualitative data contextualises results can inform evaluation meaningful change on endpoints. To achieve successful implementation interviews, robust operational processes need be pla...

Activation of Cdc14 phosphatase, controlled by a signalling cascade known as the mitotic exit network, is the final switch that drives cells from mitosis into the next cell cycle. The recent discovery of a novel network that regulates early Cdc14 activation has revealed the unexpected existence of a two-step control of mitotic exit.