5,231 research outputs found
Poverty in Ireland, 1987-1994 - A Stochastic Dominance Approach
Poverty dominance analysis uses stochastic dominance to provide rankings of distributions in terms of poverty which are not sensitive to the choice of poverty line. This analysis is carried out for Ireland using Household Budget Survey data for 1987 and 1994 including tests for the statistical significance of the results. We find that for a wide range of absolute poverty lines, poverty in Ireland fell over the 1987-1994 period. When relative poverty lines are used, second-order dominance for 1987 over 1994 is found for the case of expenditure and third-order dominance for 1994 over 1987 for the case of income.
MDMA Powder, Pills and Crystal: The persistance of ecstasy and the poverty of policy.
Commonly known as ecstasy, MDMA has been central to the British acid house, rave and dance club scene over the last 20 years. Figures from the annual national British Crime Survey suggest that ecstasy use has declined since 2001. This apparent decline is considered here alongside the concurrent emergence of a ‘new’ form of ecstasy - MDMA powder or crystal - and the extent to which this can be seen as a successful rebranding of MDMA as a ‘premium’ product in the wake of user disenchantment with cheap and easily available but poor quality pills. These changes have occurred within a policy context, which in the last decade has increasingly prioritised the drugs-crime relationship through coercive treatment of problem drug users within criminal justice-based interventions, alongside a focus on binge drinking and alcohol-related harm. This has resulted in a significant reduction in the information, support and treatment available to ecstasy users since the height of dance drug harm reduction service provision pioneered by the Safer Dancing model in the mid-1990s
Evaluating detection limits of next-generation sequencing for the surveillance and monitoring of international marine pests
Most surveillance programmes for marine invasive species (MIS) require considerable taxonomic expertise, are laborious, and are unable to identify species at larval or juvenile stages. Therefore, marine pests may go undetected at the initial stages of incursions when population densities are low. In this study, we evaluated the ability of the benchtop GS Junior™ 454 pyrosequencing system to detect the presence of MIS in complex sample matrices. An initial in-silico evaluation of the mitochondrial cytochrome c oxidase subunit I (COI) and the nuclear small subunit ribosomal DNA (SSU) genes, found that multiple primer sets (targeting a ca. 400 base pair region) would be required to obtain species level identification within the COI gene. In contrast a single universal primer set was designed to target the V1–V3 region of SSU, allowing simultaneous PCR amplification of a wide taxonomic range of MIS. To evaluate the limits of detection of this method, artificial contrived communities (10 species from 5 taxonomic groups) were created using varying concentrations of known DNA samples and PCR products. Environmental samples (water and sediment) spiked with one or five 160 hr old Asterias amurensis larvae were also examined. Pyrosequencing was able to recover DNA/PCR products of individual species present at greater than 0.64% abundance from all tested contrived communities. Additionally, single A. amurensis larvae were detected from both water and sediment samples despite the co-occurrence of a large array of environmental eukaryotes, indicating an equivalent sensitivity to quantitative PCR. NGS technology has tremendous potential for the early detection of marine invasive species worldwide
Consultation with children and young people with experience of domestic abuse on Scottish Government National Domestic Abuse Delivery Group draft proposals : main report
Findings and Conclusions: Major Themes
• There was support in principle from young people for all of the proposals
• Young people gave careful consideration to the proposals and to how they might operate in practice; they expressed some caution about supporting them unreservedly until it was demonstrated they would work in practice
• In relation to all of the proposals young people had concerns about confidentiality and privacy, about to the ability to control the flow of personal information, and
there were concerns about trust
• Participants expressed the importance of the proposals contributing to young people being and feeling safe
A process of developing a national practice assessment document
This paper will share how one country within the United Kingdom (UK) collaborated on a national partnership approach in developing a consistent pre-registration undergraduate nursing practice learning assessment document. In 2011 the Scottish Heads of Academic Nursing and Allied Health Professionals (SHANAHP, now Council of Deans Scotland, CoDS) agreed to support the development of a Scottish national approach to practice learning assessment document (the “Scottish Ongoing Achievement Record”). Whilst no direct funding was received to support this work, each HEI agreed that this work would be recognised via the release of staff time to enable completion. Utilising a communities of practice approach to collaborative working, the national group incorporated the collective knowledge and experience of representatives from all Higher Education Institutes (HEIs) in Scotland that provided undergraduate pre-registration nurse education. The work of the group will be described in four phases, Mapping of Influential Drivers; Guiding Principles and Good Practice; Document development; and Implementation. Appraisal of the advantages of this approach in light of international literature will be considered alongside challenges encountered during development and implementation
Barcoding of the cytochrome oxidase I (COI) indicates a recent introduction of Ciona savignyi into New Zealand and provides a rapid method for Ciona species discrimination
Mitochondrial cytochrome oxidase I (COI) gene sequencing (DNA barcoding) of Ciona specimens from New Zealand (NZ) led to the first record of the solitary ascidian Ciona savignyi in the Southern Hemisphere. We sought to quantify C. savignyi COI genetic diversity around the NZ archipelago and to compare this with diversity within C. savignyi's native range in the north-west Pacific. Ciona savignyi specimens were collected from two NZ sites and from three sites around Japan. COI sequences (595 bp) were amplified and measures of genetic diversity were calculated. Based on differences between their COI sequences we developed a PCR-based assay to distinguish C. savignyi from the morphologically similar C. intestinalis. A total of 12 C. savignyi COI haplotypes were recovered from the 76 samples. Of the four haplotypes observed in NZ, two were unique. From the 10 haplotypes observed in the Japan samples, eight were unique. The C. savignyi populations in Japan were found to contain higher haplotype diversity when compared with those in NZ. The NZ samples contained only a small subset of the haplotype variation of the Japan samples, however, NZ samples did harbor two haplotypes not observed in the Japan samples. A PCR-based assay developed from the COI sequences was able to reliably discriminate the two Ciona species. The low COI genetic diversity within the two NZ C. savignyi populations sampled is consistent with a founder effect associated loss of genetic diversity. The robust PCR-based assay for distinguishing C. savignyi and C. intestinalis may find application in ecological and taxonomic studies and can be applied to both archival materials and live animals
How spiky can a spiky profile be?
ESL professionals often assess language competence within the paradigm of the 4 skills. We use the term ‘spiky- profile’ when a learner performs erratically in one of these skill areas. Using test data from UCLan’s Language Testing Project and international cohort, the shapes of spiky profiles were investigated, focussing on the productive skills of speaking and writing
Accuracy Profile Validation of a New Analytical Method for Propane Measurement Using Headspace-Gas Chromatography-Mass Spectrometry
Propane can be responsible for several types of lethal intoxication and explosions. Quantifying it would be very helpful to determine in some cases the cause of death. Some gas chromatography-mass spectrometry (GC-MS) methods of propane measurements do already exist. The main drawback of these GC-MS methods described in the literature is the absence of a specific propane internal standard necessary for accurate quantitative analysis. The main outcome of the following study was to provide an innovative Headspace-GC-MS method (HS-GC-MS) applicable to the routine determination of propane concentration in forensic toxicology laboratories. To date, no stable isotope of propane is commercially available. The development of an in situ generation of standards is thus presented. An internal-labeled standard gas (C3DH7) is generated in situ by the stoichiometric formation of propane by the reaction of deuterated water (D2O) with Grignard reagent propylmagnesium chloride (C3H7MgCl). The method aims to use this internal standard to quantify propane concentrations and, therefore, to obtain precise measurements. Consequently, a complete validation with an accuracy profile according to two different guidelines, the French Society of Pharmaceutical Sciences and Techniques (SFSTP) and the Gesellschaft für toxikologische und Forensische Chemie (GTFCh), is presente
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