The election campaign must address the housing crisis

The Government’s housing policy has been focussed on building 300,000 new homes a year. That target hasn’t been reached, and even if it had been, it would still not be enough to address the current housing crisis. Christine Whitehead and Tony Crook argue that the new Government should adopt a more coherent housing policy that focuses not just on building more homes but making better use of the existing housing stock

Housing policy: a more coherent approach

Our current housing crisis has many facets. There are too few homes for everyone, those there are can be unaffordable, and intergeneration inequalities in housing costs and wealth are more pronounced that at any other time in the postwar era. Meanwhile home ownership is falling, while the insecure private rented sector has doubled in size since the turn of the century – and now accommodates almost 20% of households

On the Change in Archivability of Websites Over Time

As web technologies evolve, web archivists work to keep up so that our digital history is preserved. Recent advances in web technologies have introduced client-side executed scripts that load data without a referential identifier or that require user interaction (e.g., content loading when the page has scrolled). These advances have made automating methods for capturing web pages more difficult. Because of the evolving schemes of publishing web pages along with the progressive capability of web preservation tools, the archivability of pages on the web has varied over time. In this paper we show that the archivability of a web page can be deduced from the type of page being archived, which aligns with that page's accessibility in respect to dynamic content. We show concrete examples of when these technologies were introduced by referencing mementos of pages that have persisted through a long evolution of available technologies. Identifying these reasons for the inability of these web pages to be archived in the past in respect to accessibility serves as a guide for ensuring that content that has longevity is published using good practice methods that make it available for preservation.Comment: 12 pages, 8 figures, Theory and Practice of Digital Libraries (TPDL) 2013, Valletta, Malt

Some factors affecting the extraction of nitrogenous materials from leaves of various species

RESP-274

External and internal noise surveys of London primary schools

Internal and external noise surveys have been carried out around schools in London, UK, to provide information on typical levels and sources to which children are exposed while at school. Noise levels were measured outside 142 schools, in areas away from flightpaths into major airports. 86% of the schools surveyed were exposed to noise from road traffic, the average external noise level outside a school being 57 dB LAeq. Detailed internal noise surveys have been carried out in 140 classrooms in 16 schools, together with classroom observations. It was found that noise levels inside classrooms depend upon the activities in which the children are engaged, with a difference of 20 dB LAeq between the 'quietest' and 'noisiest' activities. The average background noise level in classrooms exceeds the level recommended in current standards. The number of children in the classroom was found to affect noise levels. External noise influenced internal noise levels only when children were engaged in the quietest classroom activities. The effects of the age of the school buildings and types of window upon internal noise were examined but results were inconclusive

Electron-Microscopy of Viruses: I. State of Aggregation of Tobacco Mosaic Virus

RESP-261

Studies on the storage of potatoes II. The temperature conditions inside potato clamps

RESP-297

Studies on the storage of potatoes. III. The composition of the atmosphere in a potato clamp

RESP-297

Studies on the storage of potatoes I. Changes in composition during storage

RESP-276

Electron-beam propagation in a two-dimensional electron gas

A quantum mechanical model based on a Green's function approach has been used to calculate the transmission probability of electrons traversing a two-dimensional electron gas injected and detected via mode-selective quantum point contacts. Two-dimensional scattering potentials, back-scattering, and temperature effects were included in order to compare the calculated results with experimentally observed interference patterns. The results yield detailed information about the distribution, size, and the energetic height of the scattering potentials.Comment: 7 pages, 6 figure