Evaluating the impacts of Nitrate Vulnerable Zones on the environment and on farmers’ practices: a Scottish case study

The research work associated with the 2011 study was supported by the Co-operative Research Programme of the OECD [grant number JA708774].Nitrate vulnerable zones (NVZs) have been established throughout Europe to tackle diffuse pollution. This research investigates the attitudes and practices of farmers in the River Eden catchment, within the Strathmore and Fife NVZ in eastern Scotland, and explores how these changed between 2002 and 2011. Attitudes were investigated using interviews; efficiency of nutrient use was evaluated using farm gate nutrient budgets (NBs). Most of the 16 farmers regard NVZ regulations as burdensome and costly; however, attitudes to NVZs became more positive during the period. NBs demonstrated that arable farms generate the least nitrogen (N) and phosphorus (P) surpluses, dairy the most. N efficiency improved on nine farms and declined on two; P efficiency improved on 12 farms and declined on two. Overall, the 16 farms were using 13% less N and 19% less P in 2011 compared with 2003. Water quality data demonstrate that Nitrate N in the catchment's main rivers dropped between 2004 and 2011 by a mean of 15.5%, whereas mean phosphate P declined very little. Legacy P and Inefficient sewerage treatment facilities may explain the latter finding. Results demonstrate that NVZ regulations, combined with economic pressures, have affected farmers’ attitudes and behaviour, resulting in significant improvements in surface water quality.PostprintPeer reviewe

A Special Issue Celebrating the Career of Professor Colin Ballantyne, MA, MSc, PhD, DSc, FRSE, FRSGS, a Uniquely Scottish Geomorphologist : Editorial

PostprintNon peer reviewe

What makes local energy projects acceptable? Probing the connection between ownership structures and community acceptance

Funding: Social Sciences and Humanities Research Council of Canada (752-2019-0520), Rothermere Foundation, Canadian Centennial Scholarship Fund, University of St Andrews.Community ownership of wind energy has been found to increase acceptance, but the reasons for this are poorly understood. Here, we compare different communities’ attitudes towards local onshore wind energy projects in order to gain a deeper understanding of the characteristics of ownership which are conducive to community acceptance. Using a postal survey in Scotland (n = 318), we compared three communities with varying degrees of ownership regarding their (1) support for the local wind project; (2) perceptions of energy justice; (3) perceived impacts; and (4) ownership and benefit preferences. One-way ANOVAs and the Potential for Conflict Index2 identified that residents in the two communities with a degree of ownership were more associated with greater acceptance, processes, and outcomes (i.e. more just and inclusive development processes and more fairly distributed benefits and impacts), than residents living near the privately-owned development. Additionally, we provide evidence that a co-operative can achieve similar acceptance and energy justice as a fully community-owned project. Overall, the results indicate that policymakers should take seriously the connection between the tenets of energy justice and ownership models in their policy and planning efforts.Publisher PDFPeer reviewe

Public perceptions of deer management in Scotland : the impact of place of residence, knowledge and demographic factors

Deer have a prominent public and political profile in Scotland because of their iconic status, environmental and socio-economic impacts, and the long-running controversies surrounding their management. However, few studies have examined public perceptions of deer management. This article investigates whether rural and urban place of residence and other demographic factors are significant influences on public perceptions of deer management. A survey (n = 184) in rural and urban locations in Scotland explored public perceptions of deer management in contrasting localities. Place of residence, demographic information and self-reported knowledge levels were analysed to examine their impact on perceptions. Respondents generally agreed that deer management is necessary, with fencing and culling the first and second most preferred management options. Rural or urban place of residence had a limited influence on opinions of deer management, with engagement in land-based employment playing a more important role. Self-reported understanding of deer management was the most important factor in shaping opinions; those with greater knowledge were more likely to support deer culling. The findings suggest that improved public education concerning the need for deer management would be beneficial, increasing public understanding of management practices.PostprintPeer reviewe

Dysregulation of the haem-haemopexin axis is associated with severe malaria in a case-control study of Ugandan children.

BACKGROUND: Malaria is associated with haemolysis and the release of plasma haem. Plasma haem can cause endothelial injury and organ dysfunction, and is normally scavenged by haemopexin to limit toxicity. It was hypothesized that dysregulation of the haem-haemopexin pathway contributes to severe and fatal malaria infections. METHODS: Plasma levels of haemin (oxidized haem), haemopexin, haptoglobin, and haemoglobin were quantified in a case-control study of Ugandan children with Plasmodium falciparum malaria. Levels at presentation were compared in children with uncomplicated malaria (UM; n = 29), severe malarial anaemia (SMA; n = 27) or cerebral malaria (CM; n = 31), and evaluated for utility in predicting fatal (n = 19) vs non-fatal (n = 39) outcomes in severe disease. A causal role for haemopexin was assessed in a pre-clinical model of experimental cerebral malaria (ECM), following disruption of mouse haemopexin gene (hpx). Analysis was done using Kruskall Wallis tests, Mann-Whitney tests, log-rank tests for survival, and repeated measures ANOVA. RESULTS: In Ugandan children presenting with P. falciparum malaria, haemin levels were higher and haemopexin levels were lower in SMA and CM compared to children with UM (haemin, p \u3c 0.01; haemopexin, p \u3c 0.0001). Among all cases of severe malaria, elevated levels of haemin and cell-free haemoglobin at presentation were associated with subsequent mortality (p \u3c 0.05). Compared to ECM-resistant BALB/c mice, susceptible C57BL/6 mice had lower circulating levels of haemopexin (p \u3c 0.01), and targeted deletion of the haemopexin gene, hpx, resulted in increased mortality compared to their wild type littermates (p \u3c 0.05). CONCLUSIONS: These data indicate that plasma levels of haemin and haemopexin measured at presentation correlate with malaria severity and levels of haemin and cell-free haemoglobin predict outcome in paediatric severe malaria. Mechanistic studies in the ECM model support a causal role for the haem-haemopexin axis in ECM pathobiology

Risk of a major adverse cardiovascular event (MACE) following first-ever hospitalisation for acute gout: a Western Australian population-level linked data study.

Objectives Cardiovascular disease is the largest contributor of increased mortality in patients with gout.  Acute inflammation as seen with gout attacks may have a mechanistic role in developing Major Adverse Cardiovascular Events (MACE).  We examined the temporal relationship between admission to hospital with acute gout and MACE. Approach Linked inpatient and mortality data from the Western Australian Rheumatic Disease Epidemiology Registry were used.  We identified patients with an incident acute gout (index) hospitalisation and admission or death records due to MACE (composite of acute coronary syndrome, stroke, heart failure, cardiovascular death).  The risk of MACE during the index post-discharge period (1-30 days after index admission) and control period (365 days prior to index admission and 365 days post-discharge) was determined using a self-controlled case-series (SCCS) design.  Conditional fixed-effects Poisson regression was used to obtain incidence rate ratios (IRR).  Sensitivity analyses were performed excluding deaths and 180-day events. Results We identified 962 patients (mean age=76.2 years [SD=12.2]; 66.8% male) with incident acute gout admission and documented MACE during the control and/or index post-discharge periods.   917 (95.3%) patients experienced MACE during the control period and 114 (11.9%) during the index post-discharge period.  The rate of MACE during the control and post-discharge periods were 0.84 and 1.44 events per person-year, respectively, with an IRR=1.67 (95% CI: 1.38-2.02) for the post-discharge period compared with the control period from regression analysis.  Sensitivity analyses excluding deaths and 180-day events were IRR=1.68 (95% CI=1.29-2.20) and IRR=1.66 (95% CI=1.34-2.07) respectively. Conclusion Our self-controlled case-series study using linked administrative data found an increased risk of MACE during the 30 days after discharge for index gout hospitalisation.  This suggests a temporal association between acute inflammation and MACE

UBVRI Light Curves of 44 Type Ia Supernovae

We present UBVRI photometry of 44 type-Ia supernovae (SN Ia) observed from 1997 to 2001 as part of a continuing monitoring campaign at the Fred Lawrence Whipple Observatory of the Harvard-Smithsonian Center for Astrophysics. The data set comprises 2190 observations and is the largest homogeneously observed and reduced sample of SN Ia to date, nearly doubling the number of well-observed, nearby SN Ia with published multicolor CCD light curves. The large sample of U-band photometry is a unique addition, with important connections to SN Ia observed at high redshift. The decline rate of SN Ia U-band light curves correlates well with the decline rate in other bands, as does the U-B color at maximum light. However, the U-band peak magnitudes show an increased dispersion relative to other bands even after accounting for extinction and decline rate, amounting to an additional ~40% intrinsic scatter compared to B-band.Comment: 84 authors, 71 pages, 51 tables, 10 figures. Accepted for publication in the Astronomical Journal. Version with high-res figures and electronic data at http://astron.berkeley.edu/~saurabh/cfa2snIa