This Article contains typographical errors. In the Results section under subheading 'Nanotube-based compact all-fiber triple-wavelength laser sys-tem' , " The dispersion parameter of these three CFBGs is ~2.2 ps 2 /cm with the length of ~10 mm " should read: " The dispersion parameter of these three CFBGs is − 2.2 ps 2 /cm with the length of ~10 mm ". In addition, " Fig. 1(d) shows the absorpti...

We report real-time observations of the folding and melting of DNA by probing two active sites of a hairpin structure, the bases and the stem end, and using an ultrafast T-jump. Studies at different initial temperatures (before, during, and after melting) provide the time scale of water heating (<20 ps), single-strand destacking (700 ps to 2 ns), and hairpin destacking (microseconds and longer)...

An ultrafast time-domain spectroscopy system employing asynchronous optical sampling at a repetition rate of 10 GHz is presented. Two ultra-compact Ti:sapphire femtosecond ring lasers allow to achieve scan rates as high as 100 kHz for a 100 ps long time window and a time-delay resolution of 100 fs. The feasibility of this high-speed ASOPS system is evaluated by performing THz time domain spectr...

A large-area Resistive Plate Chamber (RPC) with a total active surface of 160×10 cm was built and tested. The surface was segmented into two 5-cm wide strips readout on both ends with customized, very high speed, front-end electronics. A timing resolution σ = 50-75 ps, with an efficiency for Minimum Ionizing Particles (MIPs) larger than 95%, was attained over the whole active area, in addition ...

The gain characteristics of an electron-beam pumped XeF(C -+ A ) excimer amplifier operating in the bluegreen spectral region were investigated for several laser pulse lengths. Saturation energy densities of 50 and 80 mJ/cm2 were measured for injected laser pulse durations of 250 fs and 100 ps, respectively. A gain bandwidth of 60 nm was observed with 100 ps pulse injection. Using an optimized ...

High-amplitude, MV/m, nanosecond pulsed electric fields (nsPEF) have been hypothesized to cause nanoporation of the plasma membrane. Phosphatidylserine (PS) externalization has been observed on the outer leaflet of the membrane shortly after nsPEF exposure, suggesting local structural changes in the membrane. In this study, we utilized fluorescently-tagged Annexin V to observe the externalizati...

We investigate the question: under which conditions is a-compact partial two point contained in a two point set? We show that no reasonable measure or capacity (when applied to the set itself) can provide a suucient condition for a compact partial two point set to be extendable to a two point set. On the other hand, we prove that under Martin's Axiom any-compact partial two point set such that ...

We investigate the question: under which conditions is a-compact partial two point contained in a two point set? We show that no reasonable measure or capacity (when applied to the set itself) can provide a suucient condition for a compact partial two point set to be extendable to a two point set. On the other hand, we prove that under Martin's Axiom any-compact partial two point set such that ...

Phosphorothioate (PS) oligonucleotides constitute a new class of potent drugs, resulting from the replacement of one anionic oxygen of the phosphodiester backbone by one sulphur atom. This replacement confers chirality to the phosphorus atom (PSS or PSR) and alters the energetic, structural and biological properties of B-DNA. These properties were assessed by molecular mechanics calculations on...

This paper extends the concept of the PLR-group from the neo-Riemannian theory, which acts on the set of major and minor triads, to a PS-group, which acts on the set of major and minor seventh chords. Like the PLR-group, the PS-group is isomorphic to D12, the dihedral group of order 24, and only compositions of two operations are needed to generate all group elements. Unlike the actions from PL...