THE THERAPEUTIC EFFECTIVENESS OF A PRACTICALLY NONTOXIC NEW COMPOUND (CALCIUM AUROTHIOMALATE) IN EXPERIMENTAL,PROLIFERATIVE, CHRONIC ARTHRITIS OF MICE     

Sabin AB  Warren J 《Science (New York, N.Y.)》1940,92(2397):535-536

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Ice-nucleating bacteria     

Lindemann J  Warren GJ  Suslow TV 《Science (New York, N.Y.)》1986,231(4738):536

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Fascioloides magna: Occurrence in Saskatchewan and Distribution in Canada     

Wobeser G  Gajadhar AA  Hunt HM 《The Canadian veterinary journal. La revue veterinaire canadienne》1985,26(8):241-244

Infection with Fascioloides magna, the large American liver fluke, was diagnosed in two moose (Alces alces) and six wapiti (Cervus elaphus) from central Saskatchewan. This is believed to be the first record of the parasite in the province. Fecal samples collected from wild wapiti at five sites in the commercial forest zone in Saskatchewan contained eggs believed to be those of F. magna. Trematode eggs were not found in feces from five captive herds of wapiti in the province, nor in samples from wild wapiti in Moose Mountain Provincial Park. Operculate eggs were found in feces of wild wapiti from Cypress Hills, but these were believed to be from trematodes other than F. magna. The distribution and significance of F. magna in Canada, based partially on responses to a mail questionnaire, are reviewed.  相似文献   

Residential natural gas consumption: evidence that conservation efforts to date have failed     

Lehman RL  Warren HE 《Science (New York, N.Y.)》1978,199(4331):879-882

A new short-term natural gas consumption model is developed, tested against American Gas Association sales data, and applied to the question of the effectiveness of conservation efforts. The results indicate that unit residential gas-heating sales per heating degree-day have remained constant in four major gas-consuming regions during the period 1974 to 1976 and that heating sales have not been affected by the recent sharp changes in price.  相似文献   

4种食用植物油脂三级中红外光谱鉴别研究     

郑雨倩  张巧云  付俊杰  王鑫鹏  申澳  于宏伟 《农产品质量与安全》2018,(5)

在4 000～600 cm~(-1)的频率范围内,采用一维及二阶导数中红外光谱技术,研究解析了豆油、花生油、玉米油和橄榄油等4种食用植物油脂的结构。实验发现,食用植物油脂同时存在着CH_3不对称伸缩振动模式(ν_(as CH3)),CH_2不对称伸缩振动模式(ν_(asCH2)),CH_3对称伸缩振动模式(ν_(sCH3)),CH_2对称伸缩振动模式(ν_(sCH2)),C=O伸缩振动模式(ν_(C=O)),CH_2弯曲振动模式(δ_(CH2)),CH_3对称弯曲振动模式(δ_(sCH3)),C-O-C伸缩振动模式(ν_(C-O-C)),CH_2平面摇摆振动模式(ρ_(CH2))等。研究发现,采用一维及二阶导数中红外光谱难以鉴别区分上述4种食用植物油脂。为此,依次研究解析了4种食用植物油脂的二维中红外光谱,包括ν_(asCH3)、ν_(asCH2)、νs_(CH3)、ν_(sCH2)、ν_(C=O)、δ_(CH2)、δ_(sCH3)、ν_(C-O-C)和ρ_(CH2)等。实验发现,以ρ_(CH2)为研究对象,在780～700 cm~(-1)的频率范围内,采用二维中红外光谱技术可以有效鉴别4种食用植物油脂。本项研究拓展了三级中红外光谱技术在食用植物油脂鉴别的应用范围。  相似文献   

基于GIS平台的继电保护整定计算数值管理     

李爱华  卿澳  象阳  张海梁 《中国农村水利水电》2007,(3):66-68,71

介绍了一种以MS ACCESS为关联数据库,利用GIS图形平台对继电保护整定计算程序中的数据进行管理的方法。使得GIS图形平台可以根据需要从数据库中读取数据,这些数据包括可视化绘图时输入的电力元件的属性数据。继电保护程序故障计算、整定计算后存储在数据库中结果,并在地理图形平台上显示。实现数据和图形的统一,提高继电保护整定计算的直观性,改善电力系统的管理水平。  相似文献   

Effects of feeding high-oil corn to beef steers on carcass characteristics and meat quality   总被引：4，自引：0，他引：4  

Andrae JG  Duckett SK  Hunt CW  Pritchard GT  Owens FN 《Journal of animal science》2001,79(3):582-588

To assess the effects of feeding high-oil corn on carcass characteristics and meat quality, 60 yearling steers were fed high concentrate diets containing either control corn (82% of diet), high-oil corn (82% of diet), or high-oil corn at a concentration that was isocaloric with the control diet (74% of diet). After being fed for 84 d, steers were slaughtered. At 72 h postmortem, carcass data were collected and rib sections from five steers grading U.S. Choice and five steers grading U.S. Select from each treatment were collected, vacuum packaged, and aged for 14 d. Three steaks (2.54 cm thick) were removed from each rib for Warner-Bratzler shear force measurement, sensory appraisal, and fatty acid composition analyses. Data were analyzed with treatment as the main effect for the carcass data and treatment, quality grade, and two-way interaction in the model for the longissimus data. The two-way interaction was nonsignificant (P > 0.05) for all variables tested. No differences were detected (P > 0.05) in carcass measurements except for marbling scores and quality grades, both of which were greater (P < 0.05) for carcasses from steers fed the high-oil corn. Overall, 78% of steers fed the high-oil corn graded U.S. Choice compared with 47% for the control and 67% for isocaloric group. Shear force and sensory properties of the longissimus were not different (P > 0.05) among treatments. Steaks from U.S. Choice carcasses rated higher (P < 0.05) for tenderness and tended to rate higher (P < 0.10) for juiciness. Feeding the isocaloric and high-oil diets increased (P < 0.05) linoleic acid, arachidonic acid, and the total PUFA content of lipid extracted from the longissimus. Saturated fatty acid percentage was lowest (P < 0.05) for high-oil corn and highest (P < 0.05) for control, with isocaloric being intermediate. Feeding high-oil corn increased (P < 0.05) pentadecyclic acid, margaric acid, and total odd-chain fatty acid content. Feeding high-oil corn in finishing beef cattle diets enhanced intramuscular lipid deposition and increased unsaturation of fatty acids of the longissimus.  相似文献   

Complete heart block associated with lupus in a dog     

Malik R  Zunino P  Hunt GB 《Australian veterinary journal》2003,81(7):398-401

A 5-year-old Poodle-cross was initially presented for exercise intolerance and difficulty in chewing and yawning. Some months later it acutely developed lethargy referable to complete heart block. Further investigations before and after permanent pacemaker implantation demonstrated Coombs-positive immune-mediated haemolytic anaemia, presumptive masticatory myositis and hypoadrenocorticism, suggesting the possibility of multisystem auto-immune disease. A diagnosis of systemic lupus erythematosus (SLE) was made based on these findings and a positive anti-nuclear antibody titre. It was thought that immune-mediated destruction of cardiac conduction tissues was responsible for the development of atrioventricular conduction block. Glucocorticoid deficiency was corrected using cortisone replacement therapy. SLE was controlled successfully for 10 months using azathioprine monotherapy until signs, subsequently shown to be due to subacute bacterial endocarditis, resulted in the death of the patient. Lupus should be considered as a potential underlying aetiology in dogs that develop heart block.  相似文献   

Cryptosporidium muris infection in bilbies (Macrotis lagotis)     

Warren KS  Swan RA  Morgan-Ryan UM  Friend JA  Elliot A 《Australian veterinary journal》2003,81(12):739-741

Cryptosporidiosis is an enteric disease of animals and humans that can be fatal in immunocompromised individuals. There is no known effective treatment for cryptosporidiosis. Bilbies are threatened marsupials and are bred in captivity as part of a recovery program to re-introduce this species to the southwest of Western Australia. Cryptosporidium muris infection was detected in the faeces of bilbies at a captive breeding colony. Stress associated with a high density of bilbies in enclosures may have predisposed some of the bilbies to infection with C. muris. C. muris has been described in mice and was found in the faeces of one mouse trapped in the breeding enclosures. It is likely the bilbies acquired the infection from mice by faecal contamination of food and water. The infection cleared within 2 months from some bilbies, however others remained infected for 6 months and treatment was attempted with dimetridazole. Subsequently the parasite was no longer be detectable in the faeces.  相似文献   

Soft tissue sarcomas and mast cell tumours in dogs; clinical behaviour and response to surgery     

Baker-Gabb M  Hunt GB  France MP 《Australian veterinary journal》2003,81(12):732-738

OBJECTIVE: To characterise the types of canine soft tissue sarcoma and mast cell tumour treated surgically at the University Veterinary Centre, Sydney. To evaluate the success of surgical treatment of these tumours and identify variables predictive of local recurrence and survival. To establish whether conclusions drawn from previous international studies are applicable to the University Veterinary Centre, Sydney, dog population and vice versa. DESIGN: Clinical presentation and results of surgical excision of 54 soft tissue sarcomas and 70 mast cell tumours affecting the trunk and limbs of dogs at the University Veterinary Centre, Sydney, between 1989 and 2001 were reviewed retrospectively. RESULTS: Cross-bred dogs and Rhodesian Ridgebacks were at significantly greater risk of developing soft tissue sarcomas, and Boxers, Australian Cattle Dogs and Staffordshire Bull Terriers were at significantly greater risk of developing mast cell tumours than other breeds. Fine needle aspiration biopsy yielded a correct diagnosis in 62.5% of soft tissue sarcomas and 96% of mast cell tumours. Local recurrence was encountered after surgical excision in 7.4% of soft tissue sarcomas and 7.3% of mast cell tumours. Metastasis occurred in 6% of soft tissue sarcomas and 12% of mast cell tumours. The most significant risk factors for local recurrence were contaminated surgical margins (soft tissue sarcomas) and histological grade (mast cell tumours). Due to the low number of animals experiencing metastasis, no conclusions could be drawn about significant risk factors. CONCLUSIONS: Aggressive surgical management of soft tissue sarcomas and mast cell tumours is associated with a low incidence of local recurrence. The type, location and behaviour of mast cell tumours and soft tissue sarcomas in the population of dogs presented to the University Veterinary Centre, Sydney are similar to those reported by others.  相似文献