7P. A Preliminary Study of the Use of Software Process Improvement Initiatives in Jamaica

Despite the acknowledged strides that information and communications technologies (ICT) have made, the information systems (IS) community has been plagued with the delivery of low quality information systems (IS). This phenomenon gave rise to a variety of software process improvement (SPI) interventions, aimed at reducing variability in the software production process, as a precursor to improving IS quality. However, SPI initiatives have targeted fairly large organizations and SPI research has been conducted mainly in developed countries, and very little in developing countries and smaller organizations such as those in Jamaica and the English-speaking Caribbean. We sought in this research to ascertain the level of awareness and intention to use SPI programs in Jamaican software development firms. Preliminary indications of our study revealed that a large majority of these firms are not aware of SPI programs; neither do they intend to adopt any form of SPI effort in the near future. Our findings provided the basis to support the claim for future research to explore the underlying causes for this lack of awareness and non-adoption of SPI programs among Jamaican firms

Using a Design Science Approach to Create and Evaluate a Social Media Crime Reporting Tool in a Developing Country: Case Jamaica

Latin America and Caribbean countries account for a considerable percentage of the homicide rate globally. The level of crime in this region has had a negative effect on growth and development. We posit that the use of social media as a crime reporting tool could have a positive impact in these economies. Therefore the purpose of this research is to use design science to create a social media crime reporting tool to be implemented in Jamaica. Over a period of eighteen months the research and development team engaged with members of the Jamaica Constabulary Force (JCF) to assess design requirements for this artifact. We present the preliminary results from the first interaction of the design cycle, which suggest that privacy and security risks, protecting the identity of informants, verifying evidence submission and reconciling Jamaica’s legislation with the use of the artifact are major concerns for members of the JC

Key influencing factors of information systems quality and success in Jamaican organizations

Despite major strides in information technology, the Information Systems (IS) community generally continues to suffer fromthe delivery of low quality and failed systems. The situation in the English-speaking Caribbean and in Jamaica in particular,is even more stark because interventions such as software process improvement (SPI) processes are neither well known norused. There is therefore a glaring need to understand the fundamentals of quality determinants in this domain to be able toprovide useful insights for improvement. A recent study has indicated that Jamaican developers are unaware of SPIapproaches and consequently the potential impact and role of process and people on IS quality. We have also included theperception of quality as a probable determinant of the success of even high quality IS. In this research in progress, we havedeveloped and proposed a research model and propositions to explore the impact of process, people and perception on ISquality and success. We hope to use it in Caribbean studies to provide much needed insights

Identifying Key Software Development Practices in the English-Speaking Caribbean Using the Nominal Group Technique

This paper explains how a simplified process improvement framework was developed with practices from the capability maturity model integration (CMMI) model using the nominal group technique (NGT). The NGT was used to generate consensus on key software process improvement practices that are likely to lead to the improvement of the quality of information systems (IS) in the English-speaking Caribbean (ESC). We present the approach taken, the results derived, and the benefits of using this approach. NGT sessions, involving 30 IS professionals were conducted in four ESC territories to reduce and finalize a list of key software development practices that would be more suitable for ESC nations to focus on

Principles for the post-GWAS functional characterisation of risk loci

Several challenges lie ahead in assigning functionality to susceptibility SNPs. For example, most effect sizes are small relative to effects seen in monogenic diseases, with per allele odds ratios usually ranging from 1.15 to 1.3. It is unclear whether current molecular biology methods have enough resolution to differentiate such small effects. Our objective here is therefore to provide a set of recommendations to optimize the allocation of effort and resources in order maximize the chances of elucidating the functional contribution of specific loci to the disease phenotype. It has been estimated that 88% of currently identified disease-associated SNP are intronic or intergenic. Thus, in this paper we will focus our attention on the analysis of non-coding variants and outline a hierarchical approach for post-GWAS functional studies

Recombination and its impact on the genome of the haplodiploid parasitoid wasp Nasonia

Homologous meiotic recombination occurs in most sexually reproducing organisms, yet its evolutionary advantages are elusive. Previous research explored recombination in the honeybee, a eusocial hymenopteran with an exceptionally high genome-wide recombination rate. A comparable study in a non-social member of the Hymenoptera that would disentangle the impact of sociality from Hymenoptera-specific features such as haplodiploidy on the evolution of the high genome-wide recombination rate in social Hymenoptera is missing. Utilizing single-nucleotide polymorphisms (SNPs) between two Nasonia parasitoid wasp genomes, we developed a SNP genotyping microarray to infer a high-density linkage map for Nasonia. The map comprises 1,255 markers with an average distance of 0.3 cM. The mapped markers enabled us to arrange 265 scaffolds of the Nasonia genome assembly 1.0 on the linkage map, representing 63.6% of the assembled N. vitripennis genome. We estimated a genome-wide recombination rate of 1.4-1.5 cM/Mb for Nasonia, which is less than one tenth of the rate reported for the honeybee. The local recombination rate in Nasonia is positively correlated with the distance to the center of the linkage groups, GC content, and the proportion of simple repeats. In contrast to the honeybee genome, gene density in the parasitoid wasp genome is positively associated with the recombination rate; regions of low recombination are characterized by fewer genes with larger introns and by a greater distance between genes. Finally, we found that genes in regions of the genome with a low recombination frequency tend to have a higher ratio of non-synonymous to synonymous substitutions, likely due to the accumulation of slightly deleterious non-synonymous substitutions. These findings are consistent with the hypothesis that recombination reduces interference between linked sites and thereby facilitates adaptive evolution and the purging of deleterious mutations. Our results imply that the genomes of haplodiploid and of diploid higher eukaryotes do not differ systematically in their recombination rates and associated parameters.Publisher PDFPeer reviewe

The Broad Absorption Line Tidal Disruption Event iPTF15af: Optical and Ultraviolet Evolution

We present multi-wavelength observations of the tidal disruption event (TDE) iPTF15af, discovered by the intermediate Palomar Transient Factory (iPTF) survey at redshift $z=0.07897$. The optical and ultraviolet (UV) light curves of the transient show a slow decay over five months, in agreement with previous optically discovered TDEs. It also has a comparable black-body peak luminosity of $L_{\rm{peak}} \approx 1.5 \times 10^{44}$ erg/s. The inferred temperature from the optical and UV data shows a value of (3$-$5) $\times 10^4$ K. The transient is not detected in X-rays up to $L_X < 3 \times 10^{42}$erg/s within the first five months after discovery. The optical spectra exhibit two distinct broad emission lines in the He II region, and at later times also H$\alpha$ emission. Additionally, emission from [N III] and [O III] is detected, likely produced by the Bowen fluorescence effect. UV spectra reveal broad emission and absorption lines associated with high-ionization states of N V, C IV, Si IV, and possibly P V. These features, analogous to those of broad absorption line quasars (BAL QSOs), require an absorber with column densities $N_{\rm{H}} > 10^{23}$ cm$^{-2}$. This optically thick gas would also explain the non-detection in soft X-rays. The profile of the absorption lines with the highest column density material at the largest velocity is opposite that of BAL QSOs. We suggest that radiation pressure generated by the TDE flare at early times could have provided the initial acceleration mechanism for this gas. Spectral UV line monitoring of future TDEs could test this proposal.Comment: 20 pages, 12 figures, published in Ap

A new conceptual framework for revenge firesetting

Revenge has frequently been acknowledged to account for a relatively large proportion of motives in deliberate firesetting. However, very little is actually known about the aetiology of revenge firesetting. Theoretical approaches to revenge-seeking behaviour are discussed. A brief review of how revenge is accounted for in existing theoretical explanations of deliberate firesetting and the known characteristics of revenge firesetters are provided. On this basis, the authors suggest, as a motive, revenge firesetting has to date been misconceptualised. A new conceptual framework is thus proposed, paying particular attention to the contextual, affective, cognitive, volitional and behavioural factors which may influence and generate a single episode of revenge firesetting. Treatment implications and suggestions for future research are also provided