366 research outputs found

    Missing Cats, Stray Coyotes: One Citizen\u27s Perspective

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    The author explores the issue of urban coyotes (Canis latrans) and coyote management from a cat owner\u27s perspective, with specific examples from Vancouver, B.C., Canada. Following a personal encounter with two coyotes in July 2005 that led to the death of a cat, the author has delved into the history of Vancouver\u27s Co-existing with Coyotes , a government-funded program run by a non-profit ecological society. The policy\u27s roots in conservation biology, the environmental movement, and the human dimensions branch of wildlife management are documented. The author contends that Co-existing with Coyotes puts people and pets at greater risk of attack by its inadequate response to aggressive coyotes, and by an educational component that misrepresents real dangers and offers unworkable advice. The environmental impact of domestic cats is addressed. The author makes the case that generalized opinions about the negative effects of cats on songbird populations and other wildlife, and assertions that urban coyotes are beneficial, are unsupported by objective experimental data. When environmentalists, who predominantly hold these views, also research, promote, and oversee urban wildlife policy, there is a consequent lack of interest in restricting coyote populations in cities, along with little concern for the fate of outdoor cats and even a desire for their depredation

    Determination and impact of surface radiative processes for TOGA COARE

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    Experiments using atmospheric general circulation models have shown that the atmospheric circulation is very sensitive to small changes in sea surface temperature in the tropical western Pacific Ocean warm pool region. The mutual sensitivity of the ocean and the atmosphere in the warm pool region places stringent requirements on models of the coupled ocean atmosphere system. At present, the situation is such that diagnostic studies using available data sets have been unable to balance the surface energy budget in the warm pool region to better than 50 to 80 W/sq m. The Tropical Ocean Global Atmosphere (TOGA) Coupled Ocean Atmosphere Response Experiment (COARE) is an observation and modelling program that aims specifically at the elucidation of the physical process which determine the mean and transient state of the warm pool region and the manner in which the warm pool interacts with the global ocean and atmosphere. This project focuses on one very important aspect of the ocean atmosphere interface component of TOGA COARE, namely the temporal and spatial variability of surface radiative fluxes in the warm pool region

    Falling Incapacity Benefit claims in a former industrial city: policy impacts or labour market improvement?

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    This article provides an in-depth study of Incapacity Benefit (IB) claims in a major city and of the factors behind their changing level. It relates to the regime prior to the introduction of the Employment and Support Allowance (ESA) in 2008. Glasgow has had one of the highest levels of IB in Britain with a peak of almost one fifth of the working age population on IB or Severe Disablement Allowance (SDA). However, over the past decade the number of IB claimants in Glasgow, as in other high claiming areas, has fallen at a faster rate than elsewhere, and Glasgow now has twice the national proportion of working-age people on IB/SDA rather than its peak of three times. The rise in IB in Glasgow can be attributed primarily to deindustrialisation; between 1971 and 1991, over 100,000 manufacturing jobs were lost in the city. Policy response was belated. Lack of local statistics on IB led to a lengthy delay in official recognition of the scale of the issue, and targeted programmes to divert or return IB claimants to work did not begin on any scale until around 2004. Evidence presented in the article suggests that the reduction in claims, which has mainly occurred since about 2003, has been due more to a strengthening labour market than to national policy changes or local programmes. This gives strong support to the view that excess IB claims are a form of disguised unemployment. Further detailed evaluation of ongoing programmes is required to develop the evidence base for this complex area. However, the study casts some doubt on the need for the post-2006 round of IB reforms in high-claim areas, since rapid decline in the number of claimants was already occurring in these areas. The article also indicates the importance of close joint working between national and local agencies, and further development of local level statistics on IB claimants

    "Many splendid fictions" : atomic narratives in Australia, 1945-1965

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    Atomic energy burst into the world's consciousness in August 1945 when the United States detonated its second atomic weapon on the Japanese seaport of Hiroshima. Over the next twenty years Australians encountered atomic technology from both a distance and closer to home. On the international stage they witnessed a series of dramas: the media circus of the 1946 Bikini trials, the outpouring of enthusiastic rhetoric about atomic possibilities, the U.S. and U.S.S.R.'s failure to reach agreement on the international control of atomic weapons, reports of long term consequences of the bombings of Hiroshima and Nagasaki and the frightening development of the hydrogen bomb. Closer to home they observed the British atomic tests at Maralinga and Monte Bello, the mining and export of uranium and debates about Australian nuclear power. This thesis is not concerned with these events themselves but with their depiction in the public sphere. It examines the authoring of these narratives and their evolution over time, arguing that the resulting discourses suggested limits to the public's understanding of nuclear issues. The process of shaping these atomic narratives ranged from direct censorship to more subtle persuasion: the repetition of certain ideas and the denial or disregarding of others; the publication or withholding of certain images; the use of familiar metaphors and language; and the recourse to scientific or political authority. Radiation and the perspective of the bomb's victims were slighted, while power, safety, and the survival of the West were emphasised. The thesis also explores several themes over the twenty year period: the odd juxtaposition of atomic energy's fear with awe; the tension between atomic energy's 'newness' and attempts to normalise, contain and make it familiar; and Australia's attempts to participate in the nuclear adventure

    An Evaluation of the Anchor-Site Phase of Family to Family

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    Examines updated outcomes of Casey's initiative to help states improve the quality of foster care while reducing its prevalence through community partnerships; team decision making; foster family recruitment, development, and support; and self-evaluation

    Acceptability and feasibility of early infant male circumcision for HIV prevention in Malawi

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    Background Voluntary medical male circumcision (VMMC) has been successfully implemented in 14 countries as an additional HIV prevention intervention. As VMMC programs mature in most countries, the focus is now on how to sustain the HIV prevention gains realised from VMMC. As part of preparations for the sustainability phase, countries are either piloting or preparing to pilot early infant male circumcision (EIMC). This qualitative study explored the acceptability and feasibility of EIMC in Malawi in order to inform pilot implementation. Methods In 2016, 23 focus group discussions were held across Malawi with participants from several ethnicities and religions/faiths. Additionally, 21 key informant interviews were held with traditional and religious leaders, traditional circumcisers (ngalibas), policy-makers, programme managers and health-care workers. Audio recordings were transcribed, translated into English (where necessary), and thematically coded using NVivo 10. Results Discussions highlighted the socio-cultural significance of MC in Malawi. Knowledge or experience of EIMC was poor although acceptability was high among most ethnic/religious groups and key informants. Participants identified EIMC's comparative HIV benefits although a few health-care workers expressed scepticism. All participants said EIMC should be offered within a clinical setting. In addition to fathers, maternal uncles and traditional leaders were deemed key decision-makers. Potential barriers to EIMC included concerns about procedure safety as well as cultural considerations. Key informants felt it was feasible to offer EIMC in Malawi. Participants' recommendations, including phased implementation, engagement of traditional leaders, use of external mobilisers and initially reaching out to influential parents, will be taken into account when designing a pilot EIMC program. Conclusions EIMC is potentially an acceptable and feasible HIV prevention intervention for most ethnic/religious groups in Malawi if wide-ranging, culturally appropriate demand-creation activities are developed, piloted, evaluated and appropriately implemented

    The unique genomic properties of sex-biased genes: Insights from avian microarray data

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    In order to develop a framework for the analysis of sex-biased genes, we present a characterization of microarray data comparing male and female gene expression in 18 day chicken embryos for brain, gonad, and heart tissue

    The Men’s Safer Sex Trial: a feasibility randomised controlled trial of an interactive digital intervention to increase condom use in men

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    OBJECTIVE: We aimed to determine the feasibility of an online randomised controlled trial (RCT) of the Men’s Safer Sex website, measuring condom use and sexually transmitted infection (STI). METHODS: For this study 159 men aged ≥16 with female sexual partners and recent condomless sex or suspected STI were recruited from three UK sexual health clinics. Participants were randomised to the intervention website plus usual clinic care (n = 84), or usual clinic care only (n = 75). Online outcome data were solicited at 3, 6, and 12 months. RESULTS: Men were enrolled via tablet computers in clinic waiting rooms. Software errors and clinic Wi-Fi access presented significant challenges, and online questionnaire response rates were poor (36% at 3 months with a £10 voucher; 50% at 12 months with £30). Clinical records (for STI diagnoses) were located for 94% of participants. Some 37% of the intervention group did not see the intervention website (n = 31/84), and (as expected) there was no detectable difference in condomless sex with female partners (IRR = 1.01, 95% CI 0.52 to 1.96). New acute STI diagnoses were recorded for 8.8% (7/80) of the intervention group, and 13.0% (9/69) of the control group over 12 months (IRR = 0.75, 95% CI 0.29 to 1.90). CONCLUSIONS: It is likely to be feasible to conduct a future large-scale RCT to assess the impact of an online intervention using clinic STI diagnoses as a primary outcome. However, practical and technical challenges need to be addressed before the potential of digital media interventions can be realised in sexual health settings

    Polyphenol oxidase-mediated protection against oxidative stress is not associated with enhanced photosynthetic efficiency

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    Background and Aims Polyphenol oxidases (PPOs) catalyse the oxidation of monophenols and/or o-diphenols to highly reactive o-quinones, which in turn interact with oxygen and proteins to form reactive oxygen species (ROS) and typical brown-pigmented complexes. Hence PPOs can affect local levels of oxygen and ROS. Although the currently known substrates are located in the vacuole, the enzyme is targeted to the thylakoid lumen, suggesting a role for PPOs in photosynthesis. The current study was designed to investigate the potential involvement of PPOs in the photosynthetic response to oxidative stress. Methods Photosynthesis (A, F(v)/F(m), ΦPSII, q(N), q(P), NPQ) was measured in leaves of a wild-type and a low-PPO mutant of red clover (Trifolium pratense ‘Milvus’) under control conditions and under a stress treatment designed to induce photooxidative stress: cold/high light (2 °C/580 µmol m(2 )s(–1)) or 0–10 µm methyl viologen. Foliar protein content and oxidation state were also determined. Key Results Photosynthetic performance, and chlorophyll and protein content during 4 d of cold/high light stress and 3 d of subsequent recovery under control growth conditions showed similar susceptibility to stress in both lines. However, more extensive oxidative damage to protein in mutants than wild-types was observed after treatment of attached leaves with methyl viologen. In addition, PPO activity could be associated with an increased capacity to dissipate excess energy, but only at relatively low methyl viologen doses. Conclusions The presence of PPO activity in leaves did not correspond to a direct role for the enzyme in the regulation or protection of photosynthesis under cold stress. However, an indication that PPO could be involved in cellular protection against low-level oxidative stress requires further investigation
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