Surviving Slavery. Mortality at Mesopotamia, a Jamaican sugar estate, 1762 - 1832

We use survival analysis to study the mortality experience of 1111 slaves living on the British West Indian sugar plantation of Mesopotamia for seven decades prior to the Emancipation Act of 1833. Using three different concepts of analysis time and employing non-parametric and semi-parametric models, our results suggest that female slaves first observed under Joseph Foster Barham II's period of ownership (1789-1832) faced an increased hazard of death compared with those first observed during his predecessor's tenure. We find no such relationship for males. We cite as a possible explanation the employment regime operated by Foster Barham II, which allocated increasing numbers of females to gang labour in the cane fields. A G-estimation model used to compensate for the 'healthy worker survivor effect' estimates that continuous exposure to such work reduced survival times by between 20 and 40 per cent. Our findings are compared with previous studies of Mesopotamia and related to the wider literature investigating the roles of fertility and mortality in undermining the sustainability of Caribbean slave populations.

‘Smart Cities’ – Dynamic Sustainability Issues and Challenges for ‘Old World’ Economies: A Case from the United Kingdom

The rapid and dynamic rate of urbanization, particularly in emerging world economies, has resulted in a need to find sustainable ways of dealing with the excessive strains and pressures that come to bear on existing infrastructures and relationships. Increasingly during the twenty-first century policy makers have turned to technological solutions to deal with this challenge and the dynamics inherent within it. This move towards the utilization of technology to underpin infrastructure has led to the emergence of the term ‘Smart City’. Smart cities incorporate technology based solutions in their planning development and operation. This paper explores the organizational issues and challenges facing a post-industrial agglomeration in the North West of England as it attempted to become a ‘Smart City’. In particular the paper identifies and discusses the factors that posed significant challenges for the dynamic relationships residents, policymakers and public and private sector organizations and as a result aims to use these micro-level issues to inform the macro-debate and context of wider Smart City discussions. In order to achieve this, the paper develops a range of recommendations that are designed to inform Smart City design, planning and implementation strategies

The health and safety implications of socio-cultural context for community construction projects in developing countries

Community participation in construction during rural infrastructure projects in developing countries is encouraged by many non-governmental organizations. The health and safety aspects of this type of development model have not previously been adequately researched, however. The aim is to identify the socio-cultural factors that motivate community members to participate in construction activities which they perceive as hazardous during a case study of a water and sanitation project in rural Ghana. This is a step towards understanding how health and safety can be more effectively managed during community development projects. A qualitative approach has been taken, using interview, observation and reflection. It was found that the communal culture of the local context resulted in community members feeling pressurized to participate in hazardous construction activities. Local customary laws further compelled individuals as they were concerned they could be fined or arrested should they not fulfil their communal obligations. Further work is required to determine the boundaries within which findings apply but it is likely that there are implications for others managing community construction projects both in Ghana and further afield

PropBase “Warehouse” architecture

PropBase is a “data warehouse” system that extracts, transforms and loads data into a simplified data model from across BGS’s heterogeneous property data sources into a single view so that the data is compatible and accessible from a single interface. The system consists of: data tables that form the core of a simplified data structure; coding routines that are run at regular intervals for the extraction, transformation and load of data into the simplified data structures, a second tier partitioned denormalized data access layer that serves as the data access point by applications. The system also includes a suite of java coded search utilities that facilitate easy data discovery and download to allow for the complex synthesis of many data types simultaneously. ; There is also a web service to allow for machine‐to‐machine interaction, enabling other software systems to directly interrogate the datasets to visualise and manipulate them. This system will have a significant impact by allowing multiple datasets to be rapidly integrated for scientific understanding whilst ensuring that data is properly managed and available for future use

Spatio-temporal malaria transmission patterns in Navrongo demographic surveillance site, northern Ghana

The relationship between entomological measures of malaria transmission intensity and mortality remains uncertain. This is partly because transmission is heterogeneous even within small geographical areas. Studying this relationship requires high resolution, spatially structured, longitudinal entomological data. Geostatistical models that have been used to analyse the spatio-temporal heterogeneity have not considered the uncertainty in both sporozoite rate (SR) and mosquito density data. This study analysed data from Kassena-Nankana districts in northern Ghana to obtain small area estimates of malaria transmission rates allowing for this uncertainty.; Independent Bayesian geostatistical models for sporozoite rate and mosquito density were fitted to produce explicit entomological inoculation rate (EIR) estimates for small areas and short time periods, controlling for environmental factors.; Mosquitoes were trapped from 2,803 unique locations for three years using mainly CDC light traps. Anopheles gambiae constituted 52%, the rest were Anopheles funestus. Mean biting rates for An. funestus and An. gambiae were 32 and 33 respectively. Most bites occurred in September, the wettest month. The sporozoite rates were higher in the dry periods of the last two years compared with the wet period. The annual EIR varied from 1,132 to 157 infective bites. Monthly EIR varied between zero and 388 infective bites. Spatial correlation for SR was lower than that of mosquito densities.; This study confirms the presence of spatio-temporal heterogeneity in malaria transmission within a small geographical area. Spatial variance was stronger than temporal especially in the SR. The estimated EIR will be used in mortality analysis for the area

Examining Asian and European reactions within shock advertising

This paper seeks to establish whether subjects from different cultures, in this case from Europe (Germany, France, Spain and the United Kingdom (UK)) and Asia (China and Japan), react differently when exposed to the same shock advertising. This is of relevance to advertisers/ marketers who wish to target particular groups in a population as societies continue to evolve, change and become less homogenous. This paper examines the effects that gender and cultural identities have on different ethnic groups. The current study was carried out in the UK using 115 undergraduate university students from 6 countries. The participants were exposed to 7 adverts on safe driving from 4 countries. The aim of the study was to see if the participants would react differently to the degree of shock depending on the culture portrayed within the advert. Our findings highlight that there is a correlation between gender and the environment depicted within 3 of the adverts. Furthermore, significant differences between European and Asian participants were also found within 2 of those 3 adverts. The findings accentuate the importance of cultural content within shock advertising. Thus, advertisers/ marketers need to take great care when constructing and delivering messages to multi-cultural customer bases

When Does Evidence Suffice for Conviction?

There is something puzzling about statistical evidence. One place this manifests is in the law, where courts are reluctant to base affirmative verdicts on evidence that is purely statistical, in spite of the fact that it is perfectly capable of meeting the standards of proof enshrined in legal doctrine. After surveying some proposed explanations for this, I shall outline a new approach – one that makes use of a notion of normalcy that is distinct from the idea of statistical frequency. The puzzle is not, however, merely a legal one. Our unwillingness to base beliefs on statistical evidence is by no means limited to the courtroom, and is at odds with almost every general principle that epistemologists have proposed as to how we ought to manage our beliefs

The enigmatic pair of dwarf galaxies Leo IV and Leo V: coincidence or common origin?

We have obtained deep photometry in two 1x1 degree fields covering the close pair of dwarf spheroidal galaxies (dSph) Leo IV and Leo V and part of the area in between. We find that both systems are significantly larger than indicated by previous measurements based on shallower data and also significantly elongated. With half-light radii of r_h=4'.6 +- 0'.8 (206 +- 36 pc) and r_h=2'.6 +- 0'.6 (133 +- 31 pc), respectively, they are now well within the physical size bracket of typical Milky Way dSph satellites. Their ellipticities of epsilon ~0.5 are shared by many faint (M_V>-8) Milky Way dSphs. The large spatial extent of our survey allows us to search for extra-tidal features with unprecedented sensitivity. The spatial distribution of candidate red giant branch and horizontal branch stars is found to be non-uniform at the ~3 sigma level. This substructure is aligned along the direction connecting the two systems, indicative of a possible `bridge' of extra-tidal material. Fitting the stellar distribution with a linear Gaussian model yields a significance of 4 sigma for this overdensity, a most likely FWHM of ~16 arcmin and a central surface brightness of ~32 mag arcsec^{-2}. We investigate different scenarios to explain the close proximity of Leo IV and Leo V and the possible tidal bridge between them. Orbit calculations demonstrate that they are unlikely to be remnants of a single disrupted progenitor, while a comparison with cosmological simulations shows that a chance collision between unrelated subhalos is negligibly small. Leo IV and Leo V could, however, be a bound `tumbling pair' if their combined mass exceeds 8 +- 4 x 10^9 M_sun. The scenario of an internally interacting pair appears to be the most viable explanation for this close celestial companionship. (abridged)Comment: 9 pages, 8 figures, small number of minor textual changes, accepted for publication in Astrophysical Journa