Results 11 to 20 of about 1,384,971 (188)

Evidence for Antipodal Hot Spots During X-ray Bursts From 4U 1636-536 [PDF]

open access: yes, 1998
The discovery of high-frequency brightness oscillations in thermonuclear X-ray bursts from several neutron-star low-mass X-ray binaries has important implications for the beat frequency model of kilohertz quasi-periodic brightness oscillations, the ...
Hameury J. M.   +2 more
core   +3 more sources

Mid-infrared broadband modulation instability and 50 dB Raman assisted parametric gain in silicon photonic wires [PDF]

open access: yes, 2011
: We demonstrate broadband modulation instability, > 40 dB parametric amplification with on-chip gain bandwidth > 580 nm, and narrowband Raman-assisted peak on-chip gain exceeding 50 dB, using mid-infrared dispersion-engineered silicon nanophotonic
Baets, Roel   +6 more
core   +1 more source

A multi-color fast-switching microfluidic droplet dye laser [PDF]

open access: yes, 2009
We describe a multi-color microfluidic dye laser operating in whispering gallery mode based on a train of alternating droplets containing solutions of different dyes; this laser is capable of switching the wavelength of its emission between 580 nm and ...
Abate, Adam R.   +6 more
core   +1 more source

‘Of course we must be equal, but …’: imagining gendered futures in two rural Southern African secondary schools [PDF]

open access: yes, 2002
Based on focus group discussions held with students at rural secondary schools in Lesotho and Zimbabwe, this paper argues that secondary schools provide important spaces for the (re)construction of gendered identities among rural girls in southern Africa.
Ansell, N
core   +1 more source

Genotypic and Phenotypic Path Analysis for Yield and Yield Components in Groundnut (Arachis hypogea)

open access: yesJournal of Pure and Applied Microbiology, 2017
Groundnut is known to be “king of oilseed crop” also referred as peanut or monkey-nut (Arachis hypogea) belongs to the family leguminoceae. A field experiment was conducted during kharif 2010 at Main Agricultural Research Station, University of ...
Shweta Kademani   +2 more
doaj   +1 more source

Integrity of total transformation graphs

open access: yesElectronic Journal of Graph Theory and Applications, 2021
A communication network can be considered to be highly vulnerable to disruption if the failure of few members (nodes or links) can result in no member’s being able to communicate with very many others.
B Basavanagoud   +2 more
doaj   +1 more source

Surface-Enhanced Oxidation and Determination of Isothipendyl Hydrochloride at an Electrochemical Sensing Film Constructed by Multiwalled Carbon Nanotubes

open access: yesInternational Journal of Electrochemistry, 2012
The electrochemical behavior of isothipendyl hydrochloride (IPH) was investigated at bare and multiwalled-carbon-nanotube modified glassy carbon electrode (MWCNT-GCE). IPH (55 μM) showed two oxidation peaks in Britton-Robinson (BR) buffer of pH 7.0.
S. N. Prashanth   +3 more
doaj   +1 more source

Electrochemical studies of nevirapine, an anti-HIV drug, and its assay in tablets and biological samples

open access: yesJournal of Electrochemical Science and Engineering, 2012
The electrochemical oxidation of nevirapine, an anti-HIV drug, at a glassy carbon electrode has been studied by voltammetric techniques. Nevirapine showed one well defined irreversible oxidation peak with a potential of 0.749 V in phosphate buffer at pH ...
Nagappa Laxman Teradal   +2 more
doaj   +1 more source

A Characterization of the Brightness Oscillations During Thermonuclear Bursts From 4U 1636-536 [PDF]

open access: yes, 1999
The discovery of nearly coherent brightness oscillations during thermonuclear X-ray bursts from six neutron-star low-mass X-ray binaries has opened up a new way to study the propagation of thermonuclear burning, and may ultimately lead to greater ...
Buccheri R.   +4 more
core   +3 more sources

Synthesis of magnetic microtubes decorated with nanowires and cells

open access: yesAIP Advances, 2018
Antiferromagnetic and ferrimagnetic microtubes decorated with nanowires have been obtained during thermal oxidation process, which was assisted by in situ electrical resistivity measurements.
C. Diaz Pomar   +6 more
doaj   +1 more source

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