In crystallography several classification methods have been proposed to put crystals in an order suitable for specific purposes. The method we consider in this paper [Li1,Li2] has been developed for the classification of silicates in order to characterize the elements of this largest single group of minerals according to crystal chemical properties. The classification mainly refers to structure...

these experiments examined the effects of pre-test intra dorsal hippocampus (intra-ca1) administration of gabaa receptor agonist and antagonist, muscimol and bicuculline respectively, on state-dependent learning induced by lithium. male nmri mice were trained in a one-trial step-down inhibitory avoidance task, and immediately after training they received ip injections of either saline (10 ml/kg...

Tucson is an enigmatic ataxitic iron meteorite, an assemblage of reduced silicates embedded in Fe-Ni metal with dissolved Si and Cr. Both, silicates and metal, contain a record of formation at high temperature ( 1800 K) and fast cooling. The latter resulted in the preservation of abundant glasses, Al-rich pyroxenes, brezinaite, and fine-grained metal. Our chemical and petrographic studies of al...

objective(s) it is believed that the mesenchymal stem cell (msc) differentiation and proliferation are the results of activation of wnt signaling pathway. on the other hand, lithium chloride is reported to be able to activate this pathway. the objective of this study was to investigate the effect of lithium on in vitro proliferation and bone differentiation of marrow-derived msc. materials and ...

objective: the influence of cholinergic drugs on lithium-induced statedependent learning has been investigated in adult male mice. method: a single-trial step-down inhibitory avoidance task was selected. the drugs used in the study were lithium chloride physostigmine , nicotine hydrogen tartrate and scopolamine hydrobromide, atropine sulphate. the drugs were administrated through the peritoneal...

the effect of neuroloptics. carbamacepine and hensmliacepines in treatment of 8.3 patients with acute mania was studied. according to drug types. patients were divided into 5 groups: 1) lithium combined with ilubupridol. 2) lithium combined with one plxenoshiacine 3) lithium combined with two phenothiazines. 4) lithium combined with cubumazepine and 5) lithium combined with benzxliazepines no s...

The habitability of Mars is determined by the physical and chemical environment. The effect of low water availability, temperature, low atmospheric pressure and strong UV radiation has been extensively studied in relation to the survival of microorganisms. In addition to these stress factors, it was recently found that silicates exposed to simulated saltation in a Mars-like atmosphere can lead ...

SiO is one of the most abundant reacting oxygen bearing condensable gas-phase species in molecular astronomical regions. Based on laboratory smoke condensation experiments and analysis of end products, it was conjectured that silicate formation in the circumstellar envelopes surrounding M-type giants begins with the formation of pure SiOx clusters. There are no direct and almost no experimental...