We review the evidence for and against the possibility that the inner singularity of a black hole contains a lightlike segment which is locally mild and characterized by mass inflation. Submitted to: Physical Review Letters Permanet address: Institute of Astronomy, University of Catania, Viale Andrea Doria 5, 95125 Catania, Italy

RNAs Interference plays a very important role in gene silencing. In vitro identification of miRNAs is a slow process as it is difficult to isolate them. Nucleotide sequences of miRNAs are highly conserved among the plants and, this form the key feature behind the identification of miRNAs in plant species by homology alignment. In silico identification of miRNAs from EST database is emerging as ...

Phytochemical investigation of the aerial parts of Senecio desfontainei afforded one new benzoxepine derivative, senecioside (1) along with eleven known compounds (2-12). Their structures were assigned from H and C NMR spectra, DEPT and 2D COSY, NOE, HSQC and HMBC NMR experiments. All these compounds were tested for antioxidant activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scaven...

The title eremophilenolide, C(15)H(22)O(3), is a natural compound isolated from Senecio laetus Edgew. The two cis-fused six-membered rings have chair confomations and the five-membered ring has a planar envelope conformation [maximum deviation = 0.010 (1) Å]. The β-hy-droxy group participates in inter-molecular O-H⋯O hydrogen bonding, forming mol-ecular chains along the a axis.

Two new closely related species of the genus Otites are described and illustrated: O. freidbergi n. sp. from Israel, and O. friedmani n. sp. from Cyprus. The two species exhibit unusual male terminalia for Otites and other Otitini. Laboratory behavioral observations on live O. freidbergi individuals showed unusually long copulation duration compared to other examined Otitini species.

A draft genome sequence was obtained from the type strain of Gelidibacter algens (ACAM 536). This species was isolated from sea-ice diatom assemblages collected from Ellis Fjord, Eastern Antarctica. The genome of ACAM 536 is a single circular chromosome with an estimated size of 4.50 Mbp.