MORPHOLOGY AND CLASSIFICATION OF THE REGUR SOILS OF INDIA     

ROY W. SIMONSON 《European Journal of Soil Science》1954,5(2):275-288

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Effects of a partial pit ventilation system on indoor air quality and ammonia emission from a fattening pig room     

Chayan Kumer Saha  Guoqiang Zhang  Peter Kai  Bjarne Bjerg 《Biosystems Engineering》2010,105(3):279-287

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Descriptive Histomorphometric Ingrowth Analysis of the Zurich Cementless Canine Total Hip Acetabular Component     

SUSANNE K. LAUER  Dr. med. vet  Diplomate ACVS/ECVS    MARY ANN NIEVES  DVM  MS  Diplomate ACVS    JEFFREY PECK  DVM  MS  Diplomate ACVS    ROY R. POOL  DVM  PhD    GISELLE HOSGOOD  BVSc  PhD  Diplomate ACVS    TIBOR LAZAR  DVM  Diplomate ACVS    ELISABETH SWANSON  DVM 《Veterinary surgery : VS》2009,38(1):59-69

Objectives— To (1) determine bone contact with the outer surface and ingrowth into the perforated outer shell of the Kyon acetabular component at 2, 6, and 12 months after total hip replacement (THR) and (2) determine correlation between radiographic lucency surrounding the cup–bone interface and bone contact and ingrowth.
Study Design— Experimental study.
Animals— Large breed dogs (n=11) with and without hip dysplasia.
Methods— Force platform gait analysis was performed preoperatively and 2, 6, and 12 months after THR. Curvilinear length of lucency (CLL) was measured on pelvic radiographs. Tissue contact with the outer cup and ingrowth into the cup were determined histomorphometrically at 2, 6, and 12 months.
Results— Peak vertical force and vertical impulse of the treated and control hind limb were not significantly different at any time. Median bone contact with the outer cup surface was 77%, 48%, and 76% at 2, 6, and 12 months, respectively. Median bone ingrowth into the cup perforations was 50%, 20%, and 44% at 2, 6, and 12 months, respectively. Median bone ingrowth to the inner cup surface was minimal at any time. CLL did not correlate with bone ingrowth.
Conclusions— Bone ingrowth into cup perforations occurred in each dog and was already present 2 months after THR, but most of the inner cup space remained vacant.
Clinical Relevance— Radiographic lucency surrounding the cup–bone interface does not allow assessment of bone contact with the outer surface or bone ingrowth into the Kyon cup in dogs without clinical problems.  相似文献   

Situation of Ralstonia solanacearum in the EPPO region in 1997   总被引：1，自引：0，他引：1  

F. GROUSSET  A.-S. ROY  I. M. SMITH 《EPPO Bulletin》1998,28(1-2):53-63

In the early 1990s, Ralstonia solanacearum , an EPPO A2 quarantine pest which previously occurred only sporadically in some of the southern Member Countries, caused a number of outbreaks of potato brown rot over a wider area in the EPPO region. The National Plant Protection Organizations of the EPPO Member Countries concerned have taken action to eradicate the pest, and in particular the European Union has taken joint action through a Control Directive. Eradication has been successful in many cases, but is complicated by the fact that R. solanacearum can persist on wild Solanum dulcamara and be dispersed by water. EPPO has collected information from its Member Countries through the period of the outbreaks and eradication, and presents in this article an overall view and a detailed country-by-country situation.  相似文献   

Effect of tillage, cover crop and crop rotation on the composition of weed flora in a sandy soil   总被引：16，自引：0，他引：16  

A SHRESTHA  S Z KNEZEVIC  R C ROY  B R BALL-COELHO  & C J SWANTON 《Weed Research》2002,42(1):76-87

The development of integrated weed management strategies requires knowledge of mechanisms that influence compositional changes in weed flora. A 9-year study was initiated in 1988 at Delhi, Canada, on a loamy sand soil to evaluate the effect of tillage systems [conventional (CT) and no-till (NT)] and cover crops (only in NT) on weed density, species composition and associations, and crop yield in a winter wheat ( Triticum aestivum L.)/bean/winter wheat rotation. Three bean types: soyabean ( Glycine max L. Merr.), white bean ( Phaseolus vulgaris L.) and kidney bean ( P . vulgaris L.) were included. The NT system included variations: rye ( Secale cereale L.) or maize ( Zea mays L.) cover crop, volunteer wheat disked after harvest and wheat stubble. Data were collected in 1994, 1995 and 1996. Tillage systems, cover crops and crop type had differential effects on weed densities, species composition and associations. Weed densities were not affected by tillage or cover crops in wheat but, in the beans, densities were greater in the CT than in the NT systems. Various associations of weed species with tillage system, cover crop and crop type were observed. Crop yields were not affected by tillage type or cover crop, except that soyabean yields were highest in plots with cover crops.  相似文献   

Plum pox situation in Europe   总被引：3，自引：0，他引：3  

A. S. ROY  I. M. SMITH 《EPPO Bulletin》1994,24(3):515-523

The EPPO Conference on plum pox organized at Bordeaux (FR) in 1993–10 included a round-table session at which scientists from research and plant protection services of EPPO Member Governments reviewed the current national status of the disease. These reports have been summarized and compared here. They show that plum pox is the most serious disease of stone fruit in Europe and that nearly all countries which produce stone fruits are affected to a greater or lesser extent. Broadly, Europe can be divided into three zones: (1) the central and eastern countries in which plum pox spread relatively early and levels are generally high; (2) the northern and western countries in which plum pox levels are very heterogeneous (sometimes fairly widespread as in Germany, sometimes very restricted as in France, sometimes absent as in Netherlands); (3) Mediterranean countries in which spread is relatively recent and there is high risk of further spread.  相似文献   

Oral conidiobolomycosis in a dog     

RUDY BAUER  STEPHEN LEMARIÉ  & ALMA ROY 《Veterinary dermatology》1997,8(2):115-120

Conidiobolomycosis was diagnosed via culture from an oral lesion in a 1.5-year-old German Shepherd dog. Clinically, the lesion consisted of a large, irregularly shaped, ulcerative focus on the caudal hard palate. Microscopically, the lesion was characterized by an eosinophilic granulomatous stomatitis with hyphal organisms surrounded by eosinophilic sleeves (Splendore–Hoeppli material) suggestive of an entomophthoramycosis. The fungus was cultured and identified with features consistent with Conidiobolus sp. Treatment with itraconazole at 10 mg kg⁻¹ twice daily for 61 days resulted in clinical and radiographic resolution of the lesion.  相似文献   

Tissue vitamin E concentrations during smoltification and seawater transfer in farmed Atlantic salmon, Salmo salar L.     

W.J. ROY  A. J. MATTY  J.G. BELL 《Aquaculture Nutrition》1995,1(1):51-57

Plasma and liver vitamin E concentrations in a population of farmed Atlantic salmon, Salmo salar L., fed commercial diets were measured by high-performance liquid chromatography. In healthy fish fed diets containing 160-210 mg kg^?1all-racα-tocopheryl acetate, vitamin E accumulated in the liver and plasma. Over a 20-month period, beginning 4 months prior to seawater transfer, mean vitamin E concentrations ranged from 51 to 754 μg g^?1 wet tissue in liver and from 7 to 68 μg mL^?1 in plasma. In liver, a sharp increase in vitamin E concentrations was recorded between 6 and 10 weeks after transfer. In plasma a similar increase occurred between 4 and 5 months post transfer. Total lipid and polyunsaturated fatty acid concentrations were also measured in these tissues. Liver total lipid concentrations fell during the period of smoltification, but there was no relationship between vitamin E and either total lipid or total polyunsaturated fatty acid concentrations in liver or plasma.  相似文献   

印度Chattisgarh州两种新开发土和一种淋溶土中磷酸盐吸附-解析特征研究   总被引：1，自引：0，他引：1  

A. K. DOLUI  S. S. ROY 《土壤圈》2005,15(5):611-619

Two Inceptisols and an Alfisol of the Indravati Catchment area in Chattisgarh, India, comprising several gradients in physical and chemical properties were studied to relate phosphate sorption and desorption to soil properties. From the P isotherm curve, the standard P requirement （SPR） of the soils was determined. Phosphate sorption data were also fitted both to the Langmuir and Freundlich Equations. The mean sorption maximum values for three different soil series were： Bastar 〉 Geedam 〉 Mosodi. The fraction of added phosphate sorbed for the 3 series followed this same trend as did SPR; the phosphate sorption maximum and the maximum phosphate buffering capacity, which were estimated by the Langmuir isotherm; and the Freundlich constant 1/n. However, phosphate desorption, as well as the maximum recovery percent did not follow this order. The phosphate affinity constant （K） was also different following the same progression for the 3 soil series as the Freundlich constant K＇, which measured sorption strength. Meanwhile, an inverse order existed for K and K＇ versus the percent desorbed relative to the sorbed as well as the maximum recovery percent. In addition, significant correlation coefficients among sorption parameters of P and soil factors were found.  相似文献   

The Languedoc Littoral Tourism as an Instrument of Regional Economic Growth     

F. ROY WILLIS 《Growth and change》1977,8(2):43-47

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