The major 3-deoxyanthocyanin isolated from the fern Blechnum novae-zelandiae was determined to be luteolinidin 5-O-beta-D-[3-O-beta-D-glucopyranosyl-2-O-acetylglucopyranoside] and was found to co-occur with quercetin 3-O-beta-D-[6-O-caffeoylglucopyranoside], quercetin 3-O-beta-D-[6-O-caffeoylgalactopyranoside] and kaempferol 3-O-beta-D-glucuronopyranoside. These pigments were identified by usin...

The emergence of free fermionic string models with solely the MSSM charged spectrum below the string scale provides further evidence to the assertion that the true string vacuum is connected to the Z2 ×Z2 orbifold in the vicinity of the free fermionic point in the Narain moduli space. An important property of the Z2 × Z2 orbifold is the cyclic permutation symmetry between the three twisted sect...

Black holes do not Hawking radiate strictly blackbody radiation due to well-known frequency-dependent greybody factors. These factors arise from frequency-dependent potential barriers outside the horizon which filter the initially blackbody spectrum emanating from the horizon. D-brane bound states, in a thermally excited state corresponding to near-extremal black holes, also do not emit blackbo...

INTRODUCTION Spectroscopy scans generally require averaging (over minutes) to obtain acceptable signal-to-noise ratio (SNR). Patient motion compromises the quality and reliability of the resulting spectra. Such concerns are particularly acute with subjects who have difficulty holding still, for instance young children or adults who are in pain or confused. Therefore, we implemented a single-vox...

pycnocycla spinosa aerial parts were collected weekly during four-month growth. hydrodistillation and gas chromatography coupled with mass spectroscopy techniques were used for essential oil and sesquiterpenes investigation. thirty-four components were identified, of which the characteristic sesquiterpenes were a -copaene, caryophyllene, a -humulene, b-ionene, d-cadinene, a -calacorene, caryoph...

the research mainly intends to evaluate performance of strontium aluminum polyphosphate as an eco friendly zinc free anticorrosion pigment in formulation of the protective primer based on epoxy resin. comparing to zinc phosphate, the most effective content of the modified pigment was determined through electrochemical impedance spectroscopy. according to pull-off, the superior sapp incorporated...

Extensive calculations for the vibrational band origins of D2H þ up to dissociation are presented. Due to the high density of vibrational states near dissociation, huge basis sets needed to be used as well as massively parallel computers. We have found 1209 A1 and 1078 B1 bound states, some of which display long-range features, which are analysed in detail. The calculations were performed withi...

There are several ways of approximating heavy quarks in lattice QCD calculations, including Nonrelativistic QCD [1–3] (NRQCD), the static approximation [4,5], and the approach developed at Fermilab [6] which takes the uncorrected Wilson action as its leading approximation but adds correction operators which end up resembling those of NRQCD rather than those of the standard Symanzik improvement ...

To determine phospholipase D (PLD) activity, an infrared spectroscopy assay was developed, based on the phosphate vibrational mode of phospholipids such as dimyristoylphophatidylcholine (DMPC), lysophosphatidylglycerol (lysoPG), dipalmitoylphosphatidylethanolamine (DPPE), and lysophosphatidylserine (lysoPS). The phosphate bands served to monitor the hydrolysis rates of phospholipids with PLD. T...