12 research outputs found
The SCUBA-2 Ambitious Sky Survey: a catalogue of beam-sized sources in the Galactic longitude range 120° to 140°
The SCUBA-2 Ambitious Sky Survey (SASSy) is composed of shallow 850-µm imaging using the Sub-millimetre Common-User Bolometer Array 2 (SCUBA-2) on the James Clerk Maxwell Telescope. Here we describe the extraction of a catalogue of beam-sized sources from a roughly 120 deg2 region of the Galactic plane mapped uniformly (to an rms level of about 40 mJy), covering longitude 120° l b| IRAS Point Source Catalogue, to determine which sources discovered in this field might be new, and hence potentially cold regions at an early stage of star formation
Health and safety management in developing countries: a study of construction SMEs in Ghana
The construction industry plays a significant role in the economy of developing countries. The sector is, however, also one of the most hazardous with frequent accidents and health-related problems. The health and safety practices of construction small and medium-sized enterprises (SMEs) in Ghana are examined with a view to improving the health and safety performance of the sector. A survey questionnaire was administered to owner/managers of SMEs, with a response rate of 32% of the sampling frame. Few of the SMEs adopted proactive health and safety practices. However, health and safety practices identified as being particularly associated with firm characteristics were: accident investigation procedures; accident reporting procedures; use of health and safety posters; documentation of method statements; and health and safety inductions. The diversity of health and safety practices associated with different size categories of SMEs and constraints to improving health and safety are highlighted. A positive change is needed in the attitudes of owner/managers which takes into account size-related constraints in order to improve the health and safety performance of Ghanaian SMEs.Developing countries, health and safety, SMEs, survey,
Recommended from our members
Building networks to work: an ethnographic study of informal routes into the UK construction industry and pathways for migrant up-skilling
The UK construction industry labour market is characterised by high levels of self-employment, sub-contracting, informality and flexibility. A corollary of this, and a sign of the increasing globalisation of construction, has been an increasing reliance on migrant labour, particularly that from the Eastern European Accession states. Yet, little is known about how their experiences within and outside of work shape their work in the construction sector. In this context better qualitative understandings of the social and communication networks through which migrant workers gain employment, create routes through the sector and develop their role/career are needed. We draw on two examples from a short-term ethnographic study of migrant construction worker employment experiences and practices in the town of Crewe in Cheshire, UK, to
demonstrate how informal networks intersect with formal elements of the sector to facilitate both recruitment and up-skilling. Such research knowledge, we argue, offers new evidence of the importance of attending to migrant worker’s own experiences in the development of more transparent recruitment processes
A pilot study for the SCUBA-2 'All-Sky' survey
The definitive version can be found at : http://onlinelibrary.wiley.com/ Copyright Royal Astronomical SocietyWe have carried out a pilot study for the Submillimetre Common-User Bolometer Array 2 (SCUBA-2) 'All-Sky' Survey (SASSy), a wide and shallow mapping project at 850 mu m, designed to find rare objects, both Galactic and extragalactic. Two distinct sets of exploratory observations were undertaken and used to test the SASSy approach and data-reduction pipeline. The first was a 0 degrees.5 x 0 degrees.5 map around the nearby galaxy NGC 2559. The galaxy was easily detected at 156 mJy, but no other convincing sources are present in the map. Comparison with other galaxies with similar wavelength coverage indicates that NGC 2559 has relatively warm dust. The second observations cover 1 deg(2) around the W5-E H II region. As well as diffuse structure in the map, a filtering approach was able to extract 27 compact sources with signal-to-noise ratio greater than 6. By matching with data at other wavelengths we can see that the SCUBA-2 data can be used to discriminate the colder cores. Together these observations show that the SASSy project will be able to meet its original goals of detecting new bright sources which will be ideal for follow-up observations with other facilities.Peer reviewe
la détermination de la loi applicable : les correctifs au rattachement
Revue Droit et PatrimoineInternational audienceno abstrac