In this paper we have introduced the concept of (γ, γ′)-preopen sets in topological space.

ROSA is a Learning Object (LO) repository system with semantic access, which enables the management of LOs. LO is a collection of reusable material used to support learning, characterized by a set of metadata descriptors. LOs are accessed in a contextualized way, determined by semantic associations between them. This paper presents ROSA+, a system extension that aims at deducing additional sema...

To determine the kinetics of tissue macrophage and microgwere observed. Alveolar macrophage engraftment was evident by 2 months and had increased to 61% of total tissue lial engraftment after bone marrow (BM) transplantation, we have developed a model using the ROSA 26 mouse. macrophages at 1 year posttransplantation. The kinetics of liver Kupffer cell engraftment were similar to those seen in ...

Flowering is an essential stage of plant growth and development. The successful transition to flowering not only ensures the completion of plant life cycles, it also serves as the basis for the production of economically important seeds and fruits. CONSTANS (CO) and FLOWERING LOCUS T (FT) are two genes playing critical roles in flowering time control in Arabidopsis. Through homology-based cloni...

Microbicidal potential of silver nanoparticles (Ag-NPs) can be drastically improved by improving their solubility or wettability in the aqueous medium. In the present study, we report the synthesis of both green and chemical synthesis of Ag-NPs, and evaluate the effect of the dispersion qualities of as-prepared Ag-NPs from both methods on their antimicrobial activities. The green synthesis of A...

Integrative taxonomy has resolved the species status of the potentially invasive Ceratitis rosa Karsch into two separate species with distinct ecological requirements: C. rosa "lowland type" and the newly described species Ceratitis quilicii De Meyer, Mwatawala & Virgilio sp. nov. "highland type". Both species are tephritid pests threatening the production of horticultural crops in Africa and b...

UNLABELLED N,N-8-demethyl-8-amino-d-riboflavin dimethyltransferase (RosA) catalyses the final dimethylation of 8-demethyl-8-amino-d-riboflavin (AF) to the antibiotic roseoflavin (RoF) in Streptomyces davawensis. In the present study, we solved the X-ray structure of RosA, and determined the binding properties of substrates and products. Moreover, we used steady-state and rapid reaction kinetic ...

In this paper we have introduced the concept of γ-b-open sets and studied some of their properties.

freely distributed and have been invaluable resources Rosa Beddington died on May 18, 2001; she was to the community. just 45. Rosa moved again, in 1993, to take up the position Rosa was an embryologist of the greatest distinction; of Head of the Division of Mammalian Development at she had extraordinary technical skills, a piercing intellithe Medical Research Council’s National Institute for g...