Transposable element activity is repressed in the germline in animals by PIWI-interacting RNAs (piRNAs), a class of small RNAs produced by genomic loci mostly composed of TE sequences. The mechanism of induction of piRNA production by these loci is still enigmatic. We have shown that, in Drosophila melanogaster, a cluster of tandemly repeated P-lacZ-white transgenes can be activated for piRNA p...

Abstract Self-powered photosensor is fabricated based on nanostructure TiO 2 /natural dyes. nanostructured thin film was prepared FTO/glass substrates by hydrothermal method. Surface morphology, crystalline structure, as well optical properties of the sample are investigated. Three types natural dyes, pomegranate, aubergine, and coffee used an active layer (absorber) photosensor. However, solut...