69 research outputs found
Awake! A Southern War Song
No full text80.7568.107 – Awake! A Southern War Song: Words by J. M. Kilgour and Music by C. L. Peticolas: 1863: Vocal Solo
Harp of the South, awake! and strike the strain once more [first line of chorus]
No full textstrophic with choruspiano and voiceJohns Hopkins University, Levy Sheet Music Collection, Box
093, Item 080Words by J.M. Kilgour. Music by C.L. Peticolas
Harp of the South, awake! and strike the strain once more [first line of chorus]
No full textstrophic with choruspiano and voiceJohns Hopkins University, Levy Sheet Music Collection, Box
093, Item 080Words by J.M. Kilgour. Music by C.L. Peticolas
Absence of Evidence for Metabolite-Modulated Association between α-Glycerol-3-phosphate Dehydrogenase and l-Lactate Dehydrogenase<sup>†</sup>
No full textEvidence for the NADH-modulated formation of a complex between α-glycerol-3-phosphate
dehydrogenase and l-lactate dehydrogenase was reported [Yong, H., Thomas, G. A., and Peticolas, W. L.
(1993) Biochemistry 32, 11124−11131]. This NADH-modulated association suggested a mechanism of
potentially great importance to enzyme modulation and the controversial phenomena of direct NADH
channeling. In the present paper, we reproduce with additional controls the experiments described by
Yong et al. ((1993) Biochemistry 32, 11124−11131). Our results conclusively demonstrate the absence
of detectable association between α-glycol-3-phosphate dehydrogenase and l-lactate dehydrogenase
The Structure of the Lowest Excited Triplet States of Hexatrienes Studied by Time-Resolved Resonance Raman Spectroscopy
No full text
High resolution measurements and modeling of auroral hydrogen emission line profiles
No full textMeasurements in the visible wavelength range at
high spectral resolution (1.3 A° ) have been made at Longyearbyen,
Svalbard (15.8 E,78.2 N) during an interval of intense
proton precipitation. The shape and Doppler shift of hydrogen
Balmer beta line profiles have been compared with
model line profiles, using as input ion energy spectra from
almost coincident passes of the FAST and DMSP spacecraft.
The comparison shows that the simulation contains the important
physical processes that produce the profiles, and confirms
that measured changes in the shape and peak wavelength
of the hydrogen profiles are the result of changing
energy input. This combination of high resolution measurements
with modeling provides a method of estimating the
incoming energy and changes in flux of precipitating protons
over Svalbard, for given energy and pitch-angle distributions.
Whereas for electron precipitation, information on the incident
particles is derived from brightness and brightness ratios
which require at least two spectral windows, for proton precipitation
the Doppler profile of resulting hydrogen emission
is directly related to the energy and energy flux of the incident
energetic protons and can be used to gather information
about the source region. As well as the expected Doppler
shift to shorter wavelengths, the measured profiles have a significant
red-shifted component, the result of upward flowing
emitting hydrogen atoms
Laser Raman Light-Scattering Observations of Conformational Changes in Myosin Induced by Inorganic Salts
No full textThe Raman spectra of aqueous solutions of myosin and mixtures of myosin in solutions of the salts CaCl2, MgCl2, and LiBr have been taken. The spectrum of the solvent background has been subtracted by means of a computer, leaving only the Raman peaks of the protein. From an analysis of the Raman bands in the regions at 900, 940, 1,240–1,300, and 1,650–1,670cm-1, it seems likely that CaCl2 effects an α-to β-transition in myosin, probably owing to the interaction of the Ca2+ ion, LiBr appears to denature the protein leading to increased random coil structure, and MgCl2 appears to have an effect intermediate between the two other salts. These results are reported for concentrations as low as 10-5 M of CaCl2 and MgCl2.This investigation indicates the usefulness of the Raman light-scattering technique for the study of protein conformational changes
Effect of the lateral carrier leakage on performance of 1.3 /spl mu/m InGaAsP MQW CMBH lasers
No full text- …
