786 research outputs found
The IPHAS catalogue of H alpha emission-line sources in the northern Galactic plane
No full textWe present a catalogue of point-source H alpha emission-line objects selected from the INT/WFC Photometric Ha Survey (IPHAS) of the northern Galactic plane. The catalogue covers the magnitude range 13 <= r' <= 19.5 and includes Northern hemisphere sources in the Galactic latitude range -5 degrees < b < 5 degrees. It is derived from similar to 1500 deg(2) worth of imaging data, which represents 80 per cent of the final IPHAS survey area. The electronic version of the catalogue will be updated once the full survey data become available. In total, the present catalogue contains 4853 point sources that exhibit strong photometric evidence for Ha emission. We have so far analysed spectra for similar to 300 of these sources, confirming more than 95 per cent of them as genuine emission-line stars. A wide range of stellar populations are represented in the catalogue, including early-type emission-line stars, active late-type stars, interacting binaries, young stellar objects and compact nebulae.
The spatial distribution of catalogue objects shows overdensities near sites of recent or current star formation, as well as possible evidence for the warp of the Galactic plane. Photometrically, the incidence of Ha emission is bimodally distributed in (r' - i'). The blue peak is made up mostly of early-type emission-line stars, whereas the red peak may signal an increasing contribution from other objects, such as young/active low-mass stars. We have cross-matched our H alpha-excess catalogue against the emission-line star catalogue of Kohoutek & Wehmeyer, as well as against sources in SIMBAD. We find that fewer than 10 per cent of our sources can be matched to known objects of any type. Thus IPHAS is uncovering an order of magnitude more faint (r' > 13) emission-line objects than were previously known in the Milky Way
Interventions to achieve long-term weight loss in obese older people
No full textThis is a pre-copy-editing, author-produced PDF of an article accepted for publication in Age and Ageing following peer review. The definitive publisher-authenticated version Witham, M. & Avenell, A. (2010). 'Interventions to achieve long-term weight loss in obese older people.' Age and Ageing 39(2) pp. 176-184 is available online at: http://dx.doi.org/10.1093/ageing/afp251.Peer reviewe
Does oral sodium bicarbonate therapy improve function and quality of life in older patients with chronic kidney disease and low-grade acidosis (the BiCARB trial)? : Study protocol for a randomized controlled trial
No full textDate of acceptance: 01/07/2015 © 2015 Witham et al. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. Acknowledgements UK NIHR HTA grant 10/71/01. We acknowledge the financial support of NHS Research Scotland in conducting this trial.Peer reviewe
Alien Registration- Witham, Evelyn M. (Portland, Cumberland County)
No full texthttps://digitalmaine.com/alien_docs/22096/thumbnail.jp
R v Lord Chancellor, ex parte Witham [1998] QB 575, High Court (Queen’s Bench Division)
No full textEssential Cases: Public Law provides a bridge between course textbooks and key case judgments. This case document summarizes the facts and decision in R v Lord Chancellor, ex parte Witham [1998] QB 575, High Court (Queen’s Bench Division). The document also includes supporting commentary from author Thomas Webb.</p
Pulsed resources and the resource-prediction strategy: a field-test using a 36-year study of small mammals
No full textPulsed resource environments are known for their marked variations in resource availability over space and time. Animals living in such environments usually increase reproduction after resources become available. Some small mammal populations, however, may use environmental cues that precede large crops of seeds (e.g. pollen, flowers, unripe seeds) to ‘predict' mast-seeding events and reproduce in advance. In other words, these populations exhibit a resource-prediction strategy based on future fitness prospects. Habitat selection might play a key role in the resource-prediction strategy, but our understanding of habitat selection in pulsed resource environments is extremely limited. We used a 36-year dataset on small mammal trapping and seed availability collected in Maine (USA) to test if American red squirrels Tamiasciurus hudsonicus, eastern chipmunks Tamias striatus, white-footed mice Peromyscus leucopus and southern red-backed voles Myodes gapperi select habitats based on upcoming resources and examine the consequences to individual fitness. Small mammal trapping was conducted in summer before seeds were available, thus trapping occurred when only the cues of an upcoming mast event were available. Using home-range estimations and capture data, we performed resource selection analyses to assess if individuals select habitat to maximize future resource acquisitions. Using capture–mark–recapture models, we also estimated individual survival (a proxy for fitness). Our results do not support habitat selection as a mechanism underlying the resource-prediction hypothesis, indicating that individuals do not select habitats based on the upcoming seed availability. Nevertheless, we found that white-footed mice with home ranges in areas characterized by a greater quantity of white oak acorns have up to a 15% higher survival rate. Our empirical study advances the understanding of predator response to pulsed resources by not supporting a key mechanism thought to underpin the anticipatory responses that have been observed in many ecosystems worldwide
Should we be giving enhanced vitamin D intakes to all?
No full textIt is widely established that vitamin D is critical for bone health. There is also an increasing body of evidence from observational studies that low levels of vitamin D are associated with a range of other disorders, including cancer and cardiovascular disease. People in temperate climates are often deficient in vitamin D, particularly in wintertime. The key question is whether there is sufficient evidence to justify supplementing vitamin D intakes for all. In this 'Controversy in Medicine', two international experts argue the case 'for' and 'against' universal vitamin D supplementation
Letter from M. Beer to Hagan
No full textHolograph letter from M. Beer, Howbridge Hall, Witham, Essex (England), to 'dear Father' (Hagan), with her new address. Relating a sentence in the 1927 Jesuit yearbook which claims that Oliver Plunkett might as well be called English since he was tried and sentenced in London. Expressing mirth; otherwise, one is used to 'their grabbing all within reach'. Asking whether she told him of her arrest last time she was in Rome
Pulsed resources and the resource-prediction strategy: a field-test using a 36-year study of small mammals
No full textThe dataset contains necessary files to replicate the analyses in the article: "Dri, G. F., Hunter, M. L., Witham, J., Mortelliti, A. Pulsed resources and the resource-prediction strategy: a field-test using a 36-year study of small mammals" (currently submitted to publication).Please contact the authors if you would like to collaborate on a project using these data. If additional comments or questions arise, please contact Gabriela Franzoi Dri ([email protected]) or Alessio Mortelliti ([email protected]).</div
Does measuring social attention lead to changes in behavior? A preliminary investigation into the implications of attention bias trials on behavior in Rhesus Macaques
No full text© 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.A welfare assessment tool in development must satisfy several criteria before it is considered ready for general use. Some tools that meet many of these criteria have been criticized for their negative effect on welfare. We conducted a preliminary assessment of the impact of attention bias (AB) trials using threat-neutral conspecific face pairs followed by presumed neutral-positive filler stimuli on the behavior of 21 rhesus macaques (Macaca mulatta; 15 female). Behavioral observations were conducted following AB trials and repeated two weeks later when no AB trials had occurred (no trial: NT). The association between observation period and behavior was assessed using linear mixed-effects models in R. Trials did not impact any observed behavior except for fear, which was displayed by five monkeys over six trials (four NT). For this sample, there was a significant reduction in fear behavior following AB trials. We, therefore, found no evidence suggesting that AB trials negatively affect behaviour. AB protocols may be suitable for continued development for primate welfare assessment and we encourage researchers to include assessing test impact on welfare in their AB protocols.ERI Howarth was supported by an LJMU PhD studentship. CL Witham and the Centre for Macaques are funded by the Medical Research Council
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