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51.
Orwell Ralph L. Wood Ronald L. Tarran Jane Torpy Fraser Burchett Margaret D. 《Water, air, and soil pollution》2004,157(1-4):193-207
Water, Air, &; Soil Pollution - The quality of the indoor environment has become a major health consideration, since urban-dwellers spend 80-90% of their time indoors, where air pollution can be... 相似文献
52.
Sarita Jane Bennett 《Genetic Resources and Crop Evolution》1997,44(1):63-72
88 herbarium specimens of the genus Lolium were scored for 22 characters, comprising 7 vegetative, 8 inflorescence and 7 seed characters. The aim was to review the species relationship and to produce a lateral key to the genus. The data were analysed using principal components analysis, discriminant function analysis and cluster analysis. All analyses separated L. perenne, L. multiflorum and L. temulentum from each other. The 2 varieties of L. rigidum showed varying degrees of separation from each other and from L. multiflorum. Their distinction as a species and as 2 varieties is discussed. L. perenne and L. rigidum were shown to contain the greatest similarity between species and L. temulentum was found to be the most distinct. A lateral key is proposed that separates the species on the basis of 11 morphological characters that are easily scored in the field. 相似文献
53.
Cocking Dean Hayes Robert King Mary Lou Rohrer Mary Jane Thomas Ronald Ward Deanna 《Water, air, and soil pollution》1991,57(1):159-170
Water, Air, & Soil Pollution - Aquatic Hg contamination extending more than 200 km along the South River, South Fork of the Shenandoah River, and Shenandoah River in western VA has been... 相似文献
54.
Bunzel M Ralph J Kim H Lu F Ralph SA Marita JM Hatfield RD Steinhart H 《Journal of agricultural and food chemistry》2003,51(5):1427-1434
Two 8-8-coupled sinapic acid dehydrodimers and at least three sinapate-ferulate heterodimers have been identified as saponification products from different insoluble and soluble cereal grain dietary fibers. The two 8-8-disinapates were authenticated by comparison of their GC retention times and mass spectra with authentic dehydrodimers synthesized from methyl or ethyl sinapate using two different single-electron metal oxidant systems. The highest amounts (481 microg/g) were found in wild rice insoluble dietary fiber. Model reactions showed that it is unlikely that the dehydrodisinapates detected are artifacts formed from free sinapic acid during the saponification procedure. The dehydrodisinapates presumably derive from radical coupling of sinapate-polymer esters in the cell wall; the radical coupling origin is further confirmed by finding 8-8 and 8-5 (and possibly 8-O-4) sinapate-ferulate cross-products. Sinapates therefore appear to have an analogous role to ferulates in cross-linking polysaccharides in cereal grains and presumably grass cell walls in general. 相似文献
55.
Plots in established heath-grassland vegetation and pure stands of Calamovilfa longifolia (Hook) Scribn. on Lake Huron sand dunes were subjected to tramppling treatments at various intensities during 1977 and 1978 and were monitored for one year following treatment. Both heath-grassland and Calamovilfa plots given 50 walking passages showed complete recovery within one year after treatment. Heavier treatments (200 walking passages) on Calamovilfa caused a significant reduction in cover one year later. Heavily trampled heath-grassland plots, although visually similar to their controls, had a continued loss of lichen cover over one year. Several species including Arctostaphylos uva-ursi (L.) Spreng., Andropogon scoparius Michx., some Carex species, Liatris cylindracea Michx. and Rosa blanda Ait. initiated new growth in the fall following heavy trampling treatment, but only shoots of Arctostaphylos survived the winter. 相似文献
56.
57.
Continuous low-dose-rate irradiation of animal tumors has become feasible through the implantation of iridium-192 by an afterloading technique. 192 Ir is an ideal radioisotope for interstitial brachytherapy in veterinary medicine because of its 74.2-day half-life, medium-energy gamma radiation (0.35 MeV), moderate shielding requirements, low cost, and adaptability to most tumor configurations. The afterloading technique can easily be applied to veterinary patients. The effectiveness of interstitial brachytherapy may be enhanced by combination with surgery and/or hyperthermia. Computer-assisted dose calculations make afterloaded 192 Ir implantation an accurate, precise method of interstitial brachytherapy. 相似文献
58.
Patrick E. Hopper DVM Carol P. Mandell DVM MS Jane M. Turrel DVM MS Nemi C. Jain MVSc PhD Fern Tablin VMD PhD Joseph G. Zinkl DVM PhD 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1989,3(2):79-85
Essential thrombocythemia (ET) in an 11-year-old dog was characterized by persistently high platelet counts (range, 4.19 X 10(6)/microliters to 4.95 X 10(6)/microliters, abnormal platelet morphology, marked megakaryocytic hyperplasia in the bone marrow, absence of circulating megakaryoblasts, and history of splenomegaly and gastrointestinal bleeding. Increased numbers of megakaryocytes and megakaryoblasts (15% to 20%) in the bone marrow were confirmed by a positive acetylcholinesterase reaction. Another significant finding was the presence of a basophilia in blood (4,836/microliters) and bone marrow. The marked persistent thrombocytosis, absence of reactive (secondary) thrombocytosis, abnormal platelet morphology, and quantitative and qualitative changes in the megakaryocytic series in the bone marrow suggested the presence of a myeloproliferative disease. Cytochemical and ultrastructural findings aided in the diagnosis of ET. The dog was treated with radiophosphorus. The results was a rapid decline in the numbers of megakaryoblasts and megakaryocytes in the bone marrow and platelets and basophils in the peripheral blood. The dog died unexpectedly of acute necrotizing pancreatitis and diabetes mellitus before a complete remission was achieved. 相似文献
59.
The use of porcine small intestinal submucosa in ten cases of feline corneal disease 总被引:3,自引:0,他引:3
Heidi J. Featherstone Jane Sansom Christine L. Heinrich† 《Veterinary ophthalmology》2001,4(2):147-153
Porcine small intestinal submucosa (SIS) was used as a novel graft material in the management of 10 cases of feline corneal disease. Five cases had stromal ulceration associated with trauma, ocular foreign body and/or suspected infection and required a grafting procedure. Five cases had feline sequestra that were managed by a keratectomy prior to placement of SIS as a graft material. Eight eyes healed with minimal corneal scarring with a very good cosmetic and visual result. One eye with continued aqueous leakage in the immediate postoperative period required a conjunctival pedicle graft to reinforce the SIS graft site. One eye required enucleation 48 h following grafting due to progressive keratomalacia but the SIS material remained intact. 相似文献
60.