graphene, a new member of the carbon family, was used as an adsorbent due to its exceptional capability to remove rhodamine b (rb) and malachite green (mg), two organic dyes, from aqueous solutions. adsorption kinetics of rb and mg onto graphene and adsorption capacity of the adsorbent were studied. also the effects of parameters, including ph, contact time, temperature, and adsorbent dosage we...

The growth suppression function of RB is dependent on its protein binding activity. RB contains at least three distinct protein binding functions: (i) the A/B pocket, which binds proteins with the LXCXE motif; (ii) the C pocket, which binds the c-Abl tyrosine kinase; and (iii) the large A/B pocket, which binds the E2F family of transcription factors. Phosphorylation of RB, which is catalyzed by...

We compute the supersymmetric contribution to Rb ≡ Γ(Z → bb̄)/Γ(Z → hadrons) in a variety of supersymmetric models. In the context of supergravity models with universal soft-supersymmetry-breaking and radiative electroweak breaking we find R b <∼ 0.0004, which does not shift significantly the Standard Model prediction (R b = 0.2157 for mt = 175GeV; R exp b = 0.2204 ± 0.0020). We also compute Rb ...

The nuclear matrix is defined as the insoluble framework of the nucleus and has been implicated in the regulation of gene expression, the cell cycle, and nuclear structural integrity via linkage to intermediate filaments of the cytoskeleton. We have discovered a novel nuclear matrix protein, NRP/B (nuclear restricted protein/brain), which contains two major structural elements: a BTB domain-lik...

An analysis of supersymmetric contributions to Rb in supergravity grand unification with non-universal boundary conditions on soft SUSY breaking in the scalar sector is given. Effects on Rb of Planck scale corrections on gaugino masses are also analysed. It is found that there exist regions of the parameter space where positive corrections to Rb of size ∼ 1σ can be gotten. The region of the par...

Clostridium difficile toxin B (269 kDa), which is one of the causative agents of antibiotic-associated diarrhea and pseudomembranous colitis, inactivates Rho GTPases by glucosylation. Here we studied the uptake and membrane interaction of the toxin with eukaryotic target cells. Bafilomycin A1, which prevents acidification of endosomal compartments, blocked the cellular uptake of toxin B in Chin...

Recently, the D13S25 locus, which is in close proximity to the retinoblastoma gene (RB-1) on chromosome band 13q14, was discussed to play a role in the pathogenesis of B-CLL. In the present study, we isolated two overlapping genomic DNA clones (termed c13S25) containing the D13S25 DNA segment and used them as probes to analyze 85 B-CLL cases by fluorescence in situ hybridization; of the 55 case...

Learning Management System (LMS) platforms provide a wealth of information on the learning patterns of students. Learning Analytics (LA) techniques permit the analysis of the logs or records of the activities of both students and teachers on the on-line platform. The learning patterns differ depending on the type of Blended Learning (B-Learning). In this study, we analyse: (1) whether significa...

The phosphorylation-dependent anchorage of retinoblastoma protein Rb in the nucleus is essential for its function. We show that its pocket C domain is both necessary and sufficient for nuclear anchorage by transiently expressing green fluorescent protein (GFP) chimeras of Rb fragments in tissue culture cells and by extracting the cells with hypotonic solutions. Solid phase binding assays using ...