Foot-and-mouth disease in Southern Ghana: occurrence and molecular characterization of circulating viruses     

Teye  Mathias V.  Sebunya  Teresa K.  Fana  Elliot M.  King  Donald P.  Seoke  LaToya  Knowles  Nick J.  Awuni  Joseph A.  Matlho  George  Leteane  Melvin  Hyera  Joseph M. K. 《Tropical animal health and production》2019,51(6):1667-1677

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Effects of 5,6-dimethylbenzimidazole, adenine and riboflavin on ruminal vitamin B12 synthesis.     

T R Rickard  G W Bigger  J M Elliot 《Journal of animal science》1975,40(6):1199-1204

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Radiation therapy for tumors of the nasal cavity and paranasal sinuses in dogs          下载免费PDF全文

Kirsty M. Elliot  Monique N. Mayer 《The Canadian veterinary journal. La revue veterinaire canadienne》2009,50(3):309-312

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Detection and spread of Phytophthora austrocedri within infected Juniperus communis woodland and diversity of co‐associated Phytophthoras as revealed by metabarcoding     

Carolyn E. Riddell  Heather F. Dun  Matt Elliot  April C. Armstrong  Mhairi Clark  Jack Forster  Pete E. Hedley  Sarah Green 《Forest Pathology》2020,50(3)

Phytophthora austrocedri is a recently invasive soilborne pathogen which is causing widespread mortality of Juniperus communis in northern Britain. The pathways by which a single genotype of P. austrocedri has spread to infect such a geographically dispersed range of woodland sites within a relatively short timeframe are unknown. This study examined the detectability of P. austrocedri in soil and water within infected J. communis woodland using qPCR to gain a better understanding of the pathogen's key mechanisms of spread. A Phytophthora metabarcoding method was also applied to investigate the wider diversity of Phytophthora species present in water at one of the sites. qPCR analyses of P. austrocedri in soil samples at a J. communis woodland exhibiting low‐to‐moderate levels of disease suggested a slow natural spread of the pathogen in soil, requiring high moisture conditions. However, the ubiquity of P. austrocedri DNA in soil samples collected across a heavily infected J. communis site suggests that once established at a site the pathogen can be spread readily in soil locally, most likely vectored by animal movements and/or human activities. The hypothesis that P. austrocedri is aerially transmitted in rainwater was not adequately proven, and an alternative hypothesis for the widespread distribution of the pathogen on J. communis in northern Britain is presented. Metabarcoding identified DNA from a diverse range of Phytophthora species in river and rainwater samples although the main target pathogen, P. austrocedri, was not amplified which disagreed with some of the qPCR findings. Possible reasons for this are discussed.  相似文献   

Laboratory antarctica: research contributions to global problems     

Weller G  Bentley CR  Elliot DH  Lanzerotti LJ  Webber PJ 《Science (New York, N.Y.)》1987,238(4832):1361-1368

Research in Antarctica is becoming increasingly important in the large interdisciplinary studies of connections within the earth's geosphere-biosphere system. Four examples of broad research areas are discussed. Upper atmosphere research explores the sun-earth interactions, which are most intense in the polar regions. The mass balance and dynamics of the large Antarctic ice sheet, and its paleoclimatic records recovered from deep ice cores, are important indicators of past and present global changes. Antarctica and sediment cores from the Southern Ocean contain the history of inception and growth of the ice masses and their subsequent fluctuations, and the long-term history of paleoclimate. The remarkable adaptations of Antarctic biota to extreme cold and drought may allow, through biotic monitoring, the detection of changes in the ocean and climate of Antarctica.  相似文献   

Left ventricular radial colour and longitudinal pulsed-wave tissue Doppler echocardiography in 39 healthy domestic pet rabbits     

Domingo Casamian-Sorrosal  Richard Saunders  William Browne  Sarah Elliot  Sonja Fonfara 《Research in veterinary science》2014

This paper reports radial colour and longitudinal mitral annulus pulsed-wave tissue Doppler findings in a large cohort of healthy, adult pet rabbits. Thirty-nine rabbits (22 Dwarf Lops, 14 French Lops and three Alaskans) underwent conscious echocardiography. The median age of the rabbits was 22 months and the median weight was 2.8 kg (Dwarf Lop 2.4 kg/French Lop 6.0 kg). Adequate radial colour and longitudinal pulsed-wave tissue Doppler traces were obtained in 100% and 85% of cases, respectively. Most systolic tissue Doppler parameters were significantly higher in French Lops than in Dwarf Lops. Separation of mitral inflow diastolic waves was present in 40% of cases using conventional spectral Doppler and in >60% of cases using pulsed-wave tissue Doppler which could be beneficial when evaluating diastolic function in rabbits. This study can be used as a reference for normal echocardiographic tissue Doppler values for adult rabbits undergoing conscious echocardiography in clinical practice.  相似文献   

What Perturbs the ggrdgr Rings of Uranus?     

French RG  Kangas JA  Elliot JL 《Science (New York, N.Y.)》1986,231(4737):480-483

The gamma and delta rings have by far the largest radial perturbations of any of the nine known Uranian rings. These two rings deviate from Keplerian orbits, having typical root-mean-square residuals of about 3 kilometers (compared to a few hundred meters for the other seven known rings). Possible causes for the perturbations include nearby shepherd satellites and Lindblad resonances. If shepherd satellites are responsible, they could be as large as several tens of kilometers in diameter. The perturbation patterns of the gamma and delta rings have been examined for evidence of Lindblad resonances of azimuthal wave number m = 0, 1, 2, 3, and 4. The beta ring radial residuals are well matched by a 2:1 Lindblad resonance. If this represents a real physical phenomenon and is not an artifact of undersampling, then the most plausible interpretation is that there is an undiscovered satellite orbiting 76,522 +/- 8 kilometers from Uranus, with an orbital period of 15.3595 +/- 0.0001 hours and a radius of 75 to 100 kilometers. Such a satellite would be easily detected by the Voyager spacecraft when it encounters Uranus. The 2:1 resonance location is 41 +/- 9 kilometers inside the delta ring, which makes it unlikely that the resonance is due to a viscous instability within the ring. In contrast, no low-order Lindblad resonance matches the gamma ring perturbations, which are probably caused by one or more shepherd satellites large enough to be clearly visible in Voyager images.  相似文献   

Variations in butterflies     

Elliot SL 《Science (New York, N.Y.)》1883,2(32):353-354

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Plants compared to animals: the broadest comparative study of development     

Meyerowitz EM 《Science (New York, N.Y.)》2002,295(5559):1482-1485

If the last common ancestor of plants and animals was unicellular, comparison of the developmental mechanisms of plants and animals would show that development was independently invented in each lineage. And if this is the case, comparison of plant and animal developmental processes would give us a truly comparative study of development, which comparisons merely among animals, or merely among plants, do not-because in each of these lineages, the fundamental mechanisms are similar by descent. Evidence from studies of developmental mechanisms in both kingdoms, and data from genome-sequencing projects, indicate that development evolved independently in the lineages leading to plants and to animals.  相似文献   

改进WEPP研究森林小区的土壤侵蚀   总被引：1，自引：0，他引：1  

JoanQ.Wu  ArthurC.Xu 《中国水土保持》2002,(7):40-40

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