It is currently believed that the “standard” accretion disk theory under-predicts the observed X-ray luminosity from Soft X-ray Transients (SXT) in quiescence by as much as 4 to 6 orders of magnitude. This “documented” failure of the standard model is considered to be one of the strongest arguments for the existence of the Advection Dominated Accretion Flows (ADAF) in Astrophysics, since these ...

Spatiotemporal correlations of the one-dimensional spring-block (BurridgeKnopoff) model of earthquakes, either with or without the viscosity term, are studied by means of numerical computer simulations. The continuum limit of the model is examined by systematically investigating the model properties with varying the block-size parameter a toward a→ 0. The Kelvin viscosity term is introduced so ...

To elucidate promoting and inhibiting effects of hydrogen cynamide (HC) and abscisic acid (ABA) on quiescence release of grape buds, physiological and molecular approaches were used to explore the mechanisms of quiescence based on metabolic and gene expression analysis. Physiological and molecular mechanisms involved in bud quiescence of grape were studied before and after application of HC, AB...

Perhaps it is unacademic to start with the word “perhaps.” Doing so implies uncertainty, a “mortal sin” for academia that demands precision and decisive action.The however, real. Ac...

It is generally accepted that a distinguishing property of stem cells (SCs), as compared to their more differentiated progenitors, is that of infrequent division, often referred to as 'quiescence'. As regards hematopoietic stem cells (HSC), their resistance to antiproliferative drugs supports this notion. Maintenance of quiescence is thought to be critical for the preservation of HSCs' function.

When conditions are unfavorable, virtually all living cells have the capability of entering a resting state termed quiescence or G0. Many aspects of the quiescence program as well as the mechanisms governing the entry and exit from quiescence remain poorly understood. Previous studies using the budding yeast Saccharomyces cerevisiae have shown that upon entry into stationary phase, a quiescent ...

We conducted a phenotypic, transcriptional, metabolic, and genetic analysis of quiescence in yeast induced by starvation of prototrophic cells for one of three essential nutrients (glucose, nitrogen, or phosphate) and compared those results with those obtained with cells growing slowly due to nutrient limitation. These studies address two related questions: (1) Is quiescence a state distinct fr...

BACKGROUND Sleep is an essential behavior that is found in all animals that have a nervous system. Neural activity is thought to control sleep, but little is known about the identity and the function of neural circuits underlying sleep. Lethargus is a developmentally regulated period of behavioral quiescence in C. elegans larvae that has sleep-like properties. RESULTS We studied sleep-like be...