In this paper, I present a theoretical and numerical (Monte Carlo) N-particle fully relativistic 4-D analysis of Penrose scattering processes (Compton and γγ −→ ee) in the ergosphere of a supermassive Kerr (rotating) black hole. These general relativistic model calculations surprisingly reveal that the observed high energies and luminosities of quasars and other active galactic nuclei, the coll...

Ammoniaand nitrite-oxidizers are collectively responsible for the aerobic oxidation of ammonia via nitrite to nitrate and play essential roles for the global biogeochemical nitrogen cycle. The physiology of these nitrifying microbes has been intensively studied since the first experiments of Sergei Winogradsky more than a century ago. Urea and ammonia are the only recognized energy sources that...

Diets based on molasses as the principle source of energy for cattle are well established (Preston and Willis 1974). However, the use of molasses as an energy source for sheep, particularly under drought conditions, has not been studied extensively. The main purpose of the studies reported here was to measure the intake and production of sheep given diets containing a high proportion of molasse...

Glycerin, known as glycerol or glycerine, is the principal co-product of biodiesel production, produced through a NaOHor KOH-catalyzed transesterification of the triacylglycerols in oils or fats with an alcohol. Glycerin is known to be a valuable ingredient for producing food, soaps, cosmetics and pharmaceuticals. Currently, with plenty of glycerin available to the world market, more uses are e...

On the basis of the high fat content of nuts, they are traditionally considered as foods that provide a high amount of energy. However, epidemiologic and clinical observations do not indicate an association between nut intake and increased BMI. There is a notorious variability in macronutrient composition among nuts, although they have some consistent patterns. Nuts contain all major macronutri...

It is demonstrated that dark energy, driven by tachyons, having non-minimal coupling with curvature and self-interacting inverse cubic potential, decays to cold dark matter in the late accelerated universe. It is found that this phenomenon yields a solution to " cosmic coincidence problem ". PACS The idea of tachyons is not new. It was proposed around 40 years back [1] and some cosmological mod...

Molasses has been used as a major energy component of feedlot diets for about 15 years (Preston et al. 1967). Over the last 5 years of drought conditions molasses has been extensively fed to cattle in large areas of north-east Australia applying the principles for its use advocated by Preston and his colleagues (see Preston & Willis 1974). A prerequisite of drought feeding is for low labour cos...

The tungsten iron-sulfur enzyme acetylene hydratase catalyzes the conversion of acetylene to acetaldehyde by addition of one water molecule to the C-C triple bond. For a member of the dimethylsulfoxide (DMSO) reductase family this is a rather unique reaction, since it does not involve a net electron transfer. The acetylene hydratase from the strictly anaerobic bacterium Pelobacter acetylenicus ...

In the recent attempts to stimulate alternative energy sources for heating and cooling of buildings, emphasis has been put on utilisation of the ambient energy from ground source and other renewable energy sources. Exploitation of renewable energy sources and particularly ground heat in buildings can significantly contribute towards reducing dependency on fossil fuels. This paper highlights the...