Now showing items 51-60 of 351
A search for the optical counterpart of the triple pulsar system psr b1620−26 in m4
(IOP Publishing, 1996-12-20)
We have performed photometry in B and V of the field of the triple system PSR B1620-26 in the globular cluster M4. Our images were taken with two two-dimensional imaging photon-counting detectors, which permitted deep ...
Crystallization and preliminary x-ray crystallographic analysis of the electron-transferring flavoprotein frommegasphaera elsdenii
(International Union of Crystallography (IUCr), 1997-07-01)
Electron-transferring flavoprotein from the rumen bacterium Megasphaera elsdenii is a heterodimer (M-r = 75 kDa) containing FAD as cofactor and functioning solely to mediate electron transfer between the prosthetic groups ...
The geomorphological unit hydrograph – a critical review
(Copernicus GmbH, 1998-01-01)
The theory of the geomorphological unit hydrograph (GUH) is examined critically and it is shown chat the inherent assumption that the operation of the drainage network may be modelled by a corresponding network of linear ...
Crystallisation of the flavodoxin frommegasphaera eldenii
(Portland Press Ltd., 1996-02-01)
Structural studies on lipopolysaccharides of serologically non-typable strains of helicobacter pylori, af1 and 007, expressing lewis antigenic determinants
In contrast to other Helicobacter pylori strains, which have serologically detectable Lewis(x) (Le(x)) and Lewis(y) (Le(y)) antigenic determinants in the O-specific polysaccharide chains of the lipopolysaccharides, H. ...
A comparative experiment of control architectures
(Elsevier BV, 1996-06-01)
This paper presents the results of two research projects in the CIM laboratory of the Cooperative Engineering Centre (CEC) in Amsterdam. The two projects involve the design and implementation of control systems for shop ...
Inequalities for baer invariants of finite groups
(Canadian Mathematical Society, 1998-12-01)
In this note we further our investigation of Baer invariants of groups by obtaining, as consequences of an exact sequence of A. S.-T. Lue, some numerical inequalities for their orders, exponents, and generating sets. An ...
Guest editorial extended enterprises, intranet and smes
(Informa UK Limited, 1997-01-01)
Palaeozoic palaeogeography of laurentia and its margins: a reassessment of palaeomagnetic data
(Oxford University Press (OUP), 1994-03-01)
The recognition of wide-spread remagnetization events during the Palaeozoic has greatly added to the problems of reconstructing the Palaeozoic drift history of Laurentia and in recent years increasing emphasis has been ...
4 collagen cross-links levels and bone density in postmenopausal coeliac patients
(Portland Press Ltd., 1998-02-01)