There is evidence to suggest a possible association between ease of access to tobacco and uptake of smoking, 2 and the likelihood of cessation. A recent analysis of tobacco outlet density (TOD) in the USA found that TOD was higher in areas where a higher proportion of Hispanics and African–Americans live, and in areas where a higher proportion of families live in poverty. The authors concluded ...

Context Intermittent rivers make up more than 50% of the world’s rivers. Refuge waterholes in these systems are critical for survival fish populations. Aim This study investigated effect that angling pressure imparts on native within refuge waterholes. Methods Golden perch (Macquaria ambigua) size structure was analysed eight across three catchments northern Murray–Darling Basin. Waterhole char...

The distribution of daytime and nighttime sources PM10 collected from January to March 2021 at an urban background site in the city Bragança, Portugal, was performed using positive matrix factorisation (PMF). Additional data PM2.5, NOx meteorological variables were support interpretations. A solution with 5 factor profiles found: traffic (33%), dust (24%), biomass burning (21%), secondary inorg...

Abstract We investigate the regional distribution of COVID-19 outbreak in Germany. use a novel digital mobility dataset, that traces undertaken trips on Easter Sunday 2020 and instrument them with accessibility as measured by road infrastructure Germany’s 401 NUTS III regions. identify robust negative association between number infected cases per capita average travel time roads to next major u...

We develop a model of endogenous quality choice and trade that combines non-iceberg trade costs and non-homothetic preferences to capture the effect of importer-exporter income differences on geographic variation in quality and export prices. The differences in income substantially alter the effect of trade costs on quality. The incentive to trade high quality goods given high trade costs (the ...

Developing country governments often delegate authority over the targeting of antipoverty programs to community organizations, while retaining control over how much goes to each community. We offer a theoretical characterization of the information structure in such programs and the interconnected behavior of the various players. Our model motivates an econometric specification for explaining di...

The challenge of remoteness is an issue for both patients and clinicians in regional, rural and remote areas of Australia with limited attention having been paid to the needs for currency maintenance and enhancement of competency of practice nurses (PNs) in providing sexual and reproductive health (S&RH) education following initial formal preparation for these roles. This paper presents researc...

This paper lies within the domain of learning algorithms based on kernels of Support Vector Machines. A kernel is constructed over the discrete structure of absolute orders of magnitude spaces. This kernel is based on an explicit function, defined from the space of k-tuples of qualitative labels to a feature space, which captures the remoteness between the components of the patterns by using ce...