Crotalus molossus

Number of Pages: 2Integrative BiologyGeological Science

Phrynosoma cornutum

Number of Pages: 7Integrative BiologyGeological Science

Cnemidophorus tesselatus

Number of Pages: 2Integrative BiologyGeological Science

Secondary centres of economic activity in the East Midlands: Summary Report

This summary report outlines the findings of a study of secondary centres of economic activity in the East Midlands. Secondary centres are defined here as urban settlements that are smaller than a principal urban area, but still significant as a centre of economic activity. In this study, secondary centres include a range of settlements, from large industrial towns to small market towns. This research has been undertaken by the Enterprise Research and Development Unit at the University of Lincoln for the East Midlands Development Agency (emda)

Lincolnshire economic strategy 2008-2012

An economic strategy for Lincolnshire, developed on behalf of Lincolnshire Enterprise and Lincolnshire Assembl

Tearing up the disc: misaligned accretion on to a binary

In a recent paper we have shown that the evolution of a misaligned disc around a spinning black hole can result in tearing the disc into many distinct planes. Tearing discs with random orientations produce direct dynamical accretion on to the hole in approximately 70% of all cases. Here we examine the evolution of a misaligned disc around a binary system. We show that these discs are susceptible to tearing for almost all inclinations. We also show that tearing of the disc can result in a significant acceleration of the disc evolution and subsequent accretion on to the binary - by factors up to 10,000 times that of a coplanar prograde disc with otherwise identical parameters. This provides a promising mechanism for driving mergers of supermassive black hole (SMBH) binaries on timescales much shorter than a Hubble time. Disc tearing also suggests new observational signatures of accreting SMBH binaries, and other systems such as protostellar binaries.Comment: 9 pages, 7 figures. Accepted to MNRAS. Simulation movies are available here: http://jila.colorado.edu/chrisnixon/tearing_binary.htm

Bufo microscaphus

Number of Pages: 3Integrative BiologyGeological Science