Taming fire by homosapiens was one of the foremost technological advancement in history evolution. The tried to tame wild locating, preserving, using as tools for hunt game, food preparation, rituals and religion, protecting them from predators. modern men Anthropocene Pyroxene period, have been used domestic, industrial, pioneering researches concur earth. type ignition our vast deciduous fore...

A highly purified isoenzyme of apyrase obtained from potatoes (Solanum tuberosum var. Pimpernel) exhibits a low specificity for the organic moiety of synthetic pyro- and triphosphates. Methyl di- and tri-phosphates were hydrolysed at higher rates than ADP and ATP, but their Km values were also higher. Steric hindrance at the carbon atom linked to the pyrophosphate chain decreases both binding a...

Photoreaction of zinc methyl 20-substituted meso(pyro)pheophorbide-a prepared by modifying naturally occurring chlorophyll-a in the presence of oxygen molecules gave its C19-C20 oxidative cleavage (1-carbonyl-19-oxo-bilatrienes) as the major products and the regioisomeric C1-C20 cleavage (19-carbonyl-1-oxo-bilatrienes) as the minor products. The resulting zinc complexes of linear tetrapyrroles ...

The snarpy cognitive robotics architecture is a new member of the family of GLAIR architectures that performs grounded reasoning and action on real and simulated robots. We employ the SNePS knowledge representation, reasoning, and acting system and the Pyro robotics toolkit. We describe the architecture together with the methodologies used to realize it. With the snarpy architecture, robotic ag...

the aim of this research is to report the results of testing of the pv-26 pyro-techniques materials and to report the operating conditions of a cloud and an aerosol chambers and also to introduce and describe these chambers of national research center of cloud seeding in iran for further researches. the effect of ice nuclei produced by pv-26 pyro-techniques on artificial clouds has been surveye...