The beta-subunit of S100 protein (S100 beta) is highly conserved in the mammalian brain. The gene coding for human S100 beta has been mapped to chromosome 21. In order to study the consequences of overexpression of the S100 beta gene, transgenic mice were generated by microinjection of a 17.3 kilobase human genomic fragment containing the three exons and the transcription control elements of th...

The temporary maintenance of a rat liver epithelial cell population at confluence before passaging followed by periods of rapid proliferation resulted in the generation of spontaneous transformants after about 108 population doublings. The appearance of morphologically aberrant transformants correlated directly with an increased resistance of the population to the growth inhibitory effects of t...

Abstract The current study presents a radiological water-quality assessment on 64 spring water samples from four Romanian counties. area is abundant in CO 2 -rich waters consumed by locals and tourists. Gross alpha activities ranged between 21 ± 7530 658 mBq L ?1 , with 27% of the exceeding WHO threshold. beta values 40 to 5520 430 29% recommended values. Radionuclide fluctuated 0.6 0.08 81 6 B...

As a result of advancing globalization and economic activities that go beyond national borders, gross domestic product (GDP) and gross national product (GNP) are becoming dissociated. The two are the same to the extent that they measure (gross) added value generated during a specific period (e.g., one year). A difference between them is, generally speaking, the former focuses on whether economi...

Beta-catenin performs critical roles in development and cellular adhesion. More recently, an oncogenic role has been described. In colon cancer, decreased E-cadherin/beta-catenin association is causally linked to increased beta-catenin-regulated gene expression and increased cellular division. Whether the same pathway is active in native epithelia remains unknown. To address this question, we u...

martindale proved that under some conditions every multiplicative isomorphism between two rings is additive. in this paper, we extend this theorem to a larger class of mappings and conclude that every multiplicative $(alpha, beta)-$derivation is additive.

today, with emphasis on the mechanical heart and heart transplantation from one human to another andone species to another, a knowledge of the anatomy of the bird’s heart could contribute to theseaccomplishments. eight male adult ostriches were used to study the heart macroscopically. this studyrevealed that the ostrich heart has some different features from the other birds. in the ostrich, fib...