13,267 research outputs found
The Cohen Macaulay property for noncommutative rings
Let R be a noetherian ring which is a finite module over its centre Z(R).
This paper studies the consequences for R of the hypothesis that it is a
maximal Cohen Macaulay Z(R)-module. Old results are reviewed and a number of
new results are proved. The additional hypothesis of homological grade symmetry
is proposed as the appropriate extra lever needed to extend the classical
commutative homological hierarchy to this setting, and results are given
offering evidence in support of this proposal.Comment: Preliminary version; comments welcom
A fully-coherent all-sky search for gravitational-waves from compact binary coalescences
We introduce a fully-coherent method for searching for gravitational wave
signals generated by the merger of black hole and/or neutron star binaries.
This extends the coherent analysis previously developed and used for targeted
gravitational wave searches to an all-sky, all-time search. We apply the search
to one month of data taken during the fifth science run of the LIGO detectors.
We demonstrate an increase in sensitivity of 25% over the coincidence search,
which is commensurate with expectations. Finally, we discuss prospects for
implementing and running a coherent search for gravitational wave signals from
binary coalescence in the advanced gravitational wave detector data.Comment: 17 pages, 12 figure
Analysis of multispectral images simulating ERTS observations
Simulation studies of selected aircraft and spacecraft acquired images were initiated in response to anticipated desires of the user community for simulated imagery prior to launch of ERTS-A. Principal modes of simulation included: (1) areas of coverage comparable to ERTS; (2) spatial resolutions within these images similar to ERTS; (3) spectral responses analogous to that expected from each channel on both the return beam vidicon and multispectral scanner, leading to production of photographic images that should appear similar to those representing each band in the two sensors; and (4) runthroughs of several analytical techniques, such as color density slicing, color additive viewing, and computer-generated reflectance and surface temperature maps, by which ERTS data can be analyzed, interpreted, and applied. The two areas involved in the simulation study were Wyoming and the Chesapeake Bay region
Responding to Gender-based Violence in Scotland: The Scope of the Gender Equality Duty to Drive Cultural and Practical Change
This piece of research has its roots in well-established policy debates
in Scotland. Following the passage of the Criminal Justice (Scotland)
Act 2003, which introduced a new statutory aggravation for crimes
motivated by religious prejudice, the then Scottish Executive convened a
working group to explore and make recommendations on whether there
was a case for similar provision for other social groups. The report and
recommendations of the Hate Crime Working Group, published in 2004,
recognised that the debate to introduce gender aggravation was one of
the most contested issues which it had looked at, but it did not believe
that at that stage it could recommend introducing such a provision.
These debates re-emerged with Patrick Harvieās memberās bill which
was to become the Offences (Aggravation by Prejudice) (Scotland) Act
2009. The Equality and Human Rights Commission, along with many
organisations in the womenās sector in Scotland, stated in its evidence on
the bill that it did not believe that a statutory gender aggravation would be
an effective additional criminal justice response to identifying and tackling
crime motivated by gender prejudice. This of course begs the question
about what is required to better address these types of crime. This piece
of research, undertaken for the EHRC by the Scottish Centre for Crime
and Justice Research, aims to be a useful contribution to this debate. It
explores some of the arguments for and against a gender aggravation in
Scots criminal law before considering the evidence thus far of the impact
the Gender Equality Duty (GED) has had on Scotlandās criminal justice
system, and makes a number of useful recommendations for the future.
The EHRC subscribes to a gendered model of violence against women,
which sees it as both a cause and consequence of wider gender
inequality. We hope this report can help inform ongoing policy debate on
criminal justice agenciesā response to violence against women, particularly
in light of the new single equality duty which Scottish Ministers will in due
course place on Scottish public authorities under powers conferred on
them by the Equality Act 2010. We believe that the appropriate regulatory
framework for public bodies working in this area is one of the prerequisites
for further improving on Scotlandās record of identifying and tackling
gender-based crime
Comparison of predictive scores of symptomatic intracerebral haemorrhage after stroke thrombolysis in a single centre
Peer reviewedPublisher PD
Scottish theme towns: have new identities enhanced development?
Three small towns in southwest Scotland have recently been branded as distinct theme towns, based on books, artists and food. This is an attempt to make them more attractive to visitors and thereby improve their economy. The objective of this research is to establish whether the new identities possessed by the towns have enhanced their development. It is argued, using data reviewing the past decade, that they have all developed, albeit at different rates, in terms of the economy and culture. Moreover, it is maintained that social capital has been enhanced and is a factor whose importance has been under-appreciated by planners and observers of this type of process. The relevance of the new identity to the pre-branding identity is also seen as a factor in successful development and ideas of authenticity and heritage are brought to bear on the relationship
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