Online social networks (OSNs) are immensely popular, but they raise important privacy concerns because they concentrate personal information for many users under a single administrative domain. We present Vis-a-Vis, a privacy-preserving framework for OSNs in which each person maintains her own information in her own Virtual Individual Server (VIS), a personal virtual machine running in the clou...

Some argue that applying a strict liability regime on AI-inflicted damages may allow well-financed big AI companies to monopolize the industry. They hypothesize would expose significant legal liability. Since small lack necessary resources pay for inflicted by their technology, could erect barriers entry these companies. Ultimately, argument continues, such give group of virtual monopoly Thus, ...

Due to its good visible-light photocatalytic activity and environmental friendliness, g-C3N4 has attracted much attention. The relationship between precursor type the properties of obtained catalysts is interesting investigate. In this work, target were prepared via thermal polymerization different precursors, melamine, a mixture urea melamine cyanuric acid. characterized by X-ray diffraction (...

The modification of high-performance liquid chromatography parameters leads to a more effective oligonucleotide-A purification process. Using various experimental such as buffer, concentration, and pH, method for optimizing the an on reverse-phase C18 column was created. To purify oligonucleotide-A, High-Performance Liquid Chromatography (HPLC), Ultraviolet-Visible Spectrophotometry (UV-Vis), C...

The preparation of gold nanomolecules with sizes other than Au(25)(SR)(18), Au(38)(SR)(24), Au(102)(SR)(44), and Au(144)(SR)(60) has been hampered by stability issues and low yields. Here we report a procedure to prepare Au(67)(SR)(35), for either R = -SCH(2)CH(2)Ph or -SC(6)H(13), allowing high-yield isolation (34%, ~10-mg quantities) of the title compound. Product high purity is assessed at e...

In this paper, we describe a method of amorphous silicon carbide film formation for a solar cell passivation layer. The film was deposited on p-type silicon (100) and glass substrates by an RF magnetron co-sputtering system using a Si target and a C target at a room-temperature condition. Several different SiC [Si1-xCx] film compositions were achieved by controlling the Si target power with a f...

The main aims of this work were the synthesis and characterization iron(III) complexes with a ditopic ligand H2L consisting bis(salicylidene)isothiosemicarbazide moiety N2O2 binding site crown-ether (O6) moiety. A series high-spin complexes, i.e. [FeIIILClBa(CH3OH)(H2O)0.5(ZnCl4)] (1), [FeIIILCl] (2), [FeIIIL(N3)] (3) [(FeIIIL)2O] (4), synthesized. characterized by mass spectrometry, IR UV-vis ...