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排序方式: 共有114条查询结果,搜索用时 15 毫秒
1.
Danelle M Okeson Shirley Yeo Llizo Christine L Miller Amy L Glaser 《Journal of zoo and wildlife medicine》2007,38(2):240-244
West Nile virus has been associated with numerous bird mortalities in the United States since 1999. Five avian species at three zoological parks were selected to assess the antibody response to vaccination for West Nile virus: black-footed penguins (Spheniscus demersus), little blue penguins (Eudyptula minor), American flamingos (Phoenicopterus ruber), Chilean flamingos (Phoenicopterus chilensis), and Attwater's prairie chickens (Tympanuchus cupido attwateri). All birds were vaccinated intramuscularly at least twice with a commercially available inactivated whole virus vaccine (Innovator). Significant differences in antibody titer over time were detected for black-footed penguins and both flamingo species. 相似文献
2.
Glaser OC 《Science (New York, N.Y.)》1916,44(1136):505-509
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Glaser RW 《Science (New York, N.Y.)》1931,73(1901):614-615
4.
Stability of co‐composted hydrochar and biochar under field conditions in a temperate soil
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Hydrothermally converted biomass (hydrochar) is evaluated as a carbon‐rich soil amendment in addition to pyrogenic biochar. After assessing the suitability of hydrochar for use in agriculture, its environmental safety and comparing its chemistry with that of biochar, we describe a field trial established at Halle (Germany) under natural conditions for a temperate climate and without further external management practices. The main objective of our study was to analyse the stability and hence the C sequestration potential of composted chars over a period of 2 years. Four treatments (no amendment control, compost, co‐composted hydrochar and co‐composted biochar) in fourfold field replication were chosen to make a direct comparison of biochar and hydrochar under field conditions. The total organic carbon and total N increased in all treatments in comparison with the control but only in biochar‐amended treatments were N concentrations more stable. Composted biochar showed significantly more black carbon content in topsoil, sampled some months after application, compared with all other treatments. We show that hydrochar is less suitable for long‐term C sequestration in comparison with biochar but has potential for soil amelioration because it delivers essential nutrients. On the other hand, biochar is richer in polyaromatic C than hydrochar and therefore is more stable in the long term. We assessed biochar stability using the black carbon analysis of the different soil samples. 相似文献
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Glaser OC 《Science (New York, N.Y.)》1911,34(863):51-52
8.
Glaser R 《Science (New York, N.Y.)》1958,128(3338):1577-1578
The number of movements of matched groups of night lizards in a photothermal gradient was recorded over periods of weeks. The placement of an aluminum foil shield over the parietal eye in one group was followed by an increase in activity over the control group. 相似文献
9.
Alley KE Cassady JM Fields H Glaser R Goodridge A Hoffsis GF Moser BD Sanfilippo F Yonushonis WP 《Science (New York, N.Y.)》2001,291(5512):2316-2317
10.
Nuclear magnetic resonance imaging of the vitreous body 总被引:2,自引:0,他引:2
R G González H M Cheng P Barnett J Aguayo B Glaser B Rosen C T Burt T Brady 《Science (New York, N.Y.)》1984,223(4634):399-400
Imaging with proton nuclear magnetic resonance is a valuable new tool for studying the vitreous body of the eye. It is particularly suited for the detection of vitreal liquefaction and intraocular hemorrhage because of the dependence of the signal on the physical environment of water. Conversely, the vitreous body provides a new model for studying changes in proton relaxation times of protein solutions in biological systems. 相似文献