To send content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about sending content to .
To send content items to your Kindle, first ensure firstname.lastname@example.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about sending to your Kindle.
Note you can select to send to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
We have applied mechanical exfoliation for the preparation of ultra-thin
samples of the phyllosilicate mineral biotite. We demonstrate that the
'scotch tape' approach, which was made famous as an early method for
production of single-atom-thick graphene, can be used for production of
sheet-silicate specimens that are sufficiently thin to allow high-resolution
transmission electron microscope (HRTEM) imaging to be achieved successfully
while also being free from the specimen preparation artefacts that are often
caused by ion-beam milling techniques. Exfoliation of the biotite parallel
to the (001) planes has produced layers as thin as two structural TOT units
thick (∼2 nm). The minimal specimen thickness enabled not only HRTEM imaging
but also the application of subsequent exit wavefunction restoration to
reveal the pristine biotite lattice. Exit wavefunction restoration recovers
the full complex electron wave from a focal series of HRTEM images, removing
the effects of coherent lens aberrations. This combination of methods
therefore produces images in which the observed features are readily
interpreted to obtain atomic resolution structural information.
We describe a newly refined procedure for making optical identifications of radio sources in Abell cluster fields observed with the Molonglo Observatory Synthesis Telescope (MOST). The method is based on past experience but uses a range of new tools to improve the reliability and production rate of identification lists. The COSMOS/UKST Southern Sky Object Catalogue was used to make preliminary identifications which were then inspected visually with the assistance of computer generated overlays of the MOST images and the Digitized Sky Survey (DSS). The overlaid images were essential for securing identifications for the extended sources prevalent among nearby clusters.
We find 21±1·5% of the radio sources are identified with galaxies and 4·6±0·7% with QSO candidates in a sample of 927 radio sources in 27 cluster fields. We make a preliminary attempt to separate cluster radio galaxies from interlopers on the basis of absolute magnitudes. A strong concentration of radio galaxies was found at projected distances less than 100 kpc from the cluster centres and a weaker concentration for projected distances of 100–500 kpc.
This paper describes the deposition by light-stimulated breakdown of gallium and indium on borosilicate glass, gallium arsenide and indium phosphide substrates, from precursors whose ultraviolet (uv) spectra have recently been reported. Some preliminary work on the deposition of indium phosphide is also reported, using an indium-phosphorus complex whose uv spectrum is also given.
Rehabilitation aims to reduce symptoms, restore function and minimize disability
through an interventionist approach that is not always concerned with pathology,
disease processes and cure. This approach will be described in the context of spinal
pain in the elderly. The syndrome of lower back pain (LBP) is such a common symptom
that it is an almost universal human experience. It is the third most commonly reported
bodily symptom after headache and fatigue. In 1998, 40% adults were affected
by an episode of LBP lasting more than a day, and 40% of those in pain sought
medical help. The resources provided for research and clinical management
of LBP are concentrated mainly on the working population. This is because of the
profound biopsychosocial consequences and huge cost to society of the ‘back
pain epidemic’. The direct health care costs of back pain have been estimated
as £1632 million in 1998.
This paper attempts to set out some of the points of detail in the administration of a privately administered pension fund based on the practical experience of a large fund. The solutions offered to the problems arising have necessarily been reached in the context of a particular fund and do not claim to be the only, or even the best, answers for other funds; indeed the very problems may be different in other funds, particularly in smaller ones.
It seems essential, therefore, to describe the main features of the fund in question.
Email your librarian or administrator to recommend adding this to your organisation's collection.