background:ecstasy, mainly composed of 3,4-methylenedioxymethamphetamine (mdma), is one of the most popular addictive synthetic drugs. this study was aimed to investigate the amount of mdma in the ecstasy tablets seized in west azerbaijan province, northwest iran and also to assess the relationship between the physicochemical and morphological characteristics of the tablets. methods: mdma conte...

The defective acute leukemia viruses avian myeloblastosis virus (AMV) and E26 virus each contain an inserted cellular sequence related to the same highly conserved cellular gene, proto-amv. The oncogenes of these two retroviruses differ from this cellular proto-oncogene in gene structure, transcript structure, and gene product. The product of the AMV oncogene (myb) is a 48,000 Mr protein, p48my...

The Earth formed through accretion of planetesimals in 1–100 million years. Planetesimal impacts induce degassing, melting, and vaporization during accretion. The impact degassing, as well as the gravitational capture of the surrounding solar nebula gas, formed the proto-atmosphere on a growing Earth. The impact of heating and the blanketing effect of the proto-atmosphere resulted in the meltin...

We consider an information-theoretic model studying the conditions when a separation between the dynamics of a ’proto-cell’ and its proto-symbolic representation becomes beneficial in terms of preserving the proto-cell’s information in a noisy environment. In particular, we are interested in understanding the behaviour at the “error threshold” level which, in our case, turns out to be a whole “...

the physicochemical properties of Iranian acetyl salicylic acid(ASA) tablets,including the products of 10 manufacturers with 14 products,from each 3 batches,totally 42 products have been studied.the properties under investigation are hardness,friability percintage,humidity percentage,free salicylic acid,content uniformity,amount of ASA disintegration time,and released percentage.the results ind...

The accumulation of genetic damage in the forms of activated proto-oncogenes and inactivated tumor-suppressor genes is the driving force in the evolution of a normal cell to a malignant cell. For example, both the activation of ras oncogenes and the inactivation of several suppressor genes, including p53, have been observed in the development of human colon and lung tumors. Point mutations in k...

Introduction. The paper considers the hunting vocabulary in Komi language. As an independent microsystem, it studies designations used for nomination of small fur-bearing animals living on territory Republic. whole set lexical units refers to both types forest inhabitants – predators and herbivores. analysis factual material is carried out establish main stages formation development this compon...

In this study, attempts were made to evaluate the effect of various acrylic acid based Carbopols on the release profile of a beta-adrenoreceptor blocking drug, propranolol HCl, from matrix-type tablets invitro. For this purpose, tablets containing 160 mg of propranolol HCl along with various amounts of Carbopols 934 (C934), 971 (C971), 974 (C974) and Pemulen (Pem) were prepared using the wet gr...