Recurring problem caused shuttle engine shutdown     

Crawford M 《Science (New York, N.Y.)》1985,229(4714):635

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Resources and compromise     

Woodwell GM 《Science (New York, N.Y.)》1985,229(4714):600

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Some other books of interest: a spacefaring people     

L K 《Science (New York, N.Y.)》1985,230(4728):934

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An engineering profession in retrospect: engineers and electrons     

Allison DK 《Science (New York, N.Y.)》1985,229(4712):457-458

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Fresh data on stale air     

Sun M 《Science (New York, N.Y.)》1985,229(4709):149

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Hard Times in Magnetic Fusion: Two straight years of budget cuts are forcing a reexamination of the program's goals and timetable; major machines could be mothballed     

Crawford M 《Science (New York, N.Y.)》1985,228(4703):1069-1071

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Isolation of avian influenza virus (subtype H5N2) from chicken eggs during a natural outbreak     

D T Cappucci  D C Johnson  M Brugh  T M Smith  C F Jackson  J E Pearson  D A Senne 《Avian diseases》1985,29(4):1195-1200

Avian influenza virus (A/Chicken/Pennsylvania/83; H5N2) was recovered from the yolk, albumen, and shell surface of eggs obtained from naturally infected chicken flocks in Pennsylvania and Virginia. These findings represent the first reported isolation of avian influenza virus from the internal contents of eggs from naturally infected flocks. The need for adequate safeguards to prevent spread of the virus during commercial movement of table and hatching eggs, cracked and "checked" eggs, and egg flats and other materials is emphasized.  相似文献   

Ocular absorption and toxicity of methotrexate in the dog          下载免费PDF全文

Bussanich MN  Rootman J  Kumi C  Gudauskas G 《The Canadian veterinary journal. La revue veterinaire canadienne》1985,26(9):263-266

The ocular absorption, elimination and toxicity of 12.5 mg of methotrexate in 0.5 cc administered subconjunctivally was studied in the dog. The purpose of this study was to establish ocular pharmacokinetics for treatment of intraocular tumours in dogs. Drug levels were measured in ocular compartments, and serum at 1,2,4,6,8 and 12 hours respectively. Tumoricidal concentrations of the drug were attained in the anterior chambers of the injected eyes up to and including six hours postinjection. Consistent signs of toxicity were anorexia, vomiting, weight loss and leukopenia. Local ocular toxicity following subconjunctival injection was minimal conjunctival hyperemia lasting up to 48 hours.  相似文献   

Radial-intermediate Carpal Bone Fusion in a Horse     

Hurtig MB  Farrow CS  Fretz PB 《The Canadian veterinary journal. La revue veterinaire canadienne》1985,26(6):177-180

The radial carpal and intermediate carpal bones were found to be fused in a four year old Quarterhorse stallion having a subtle forelimb lameness. Clinical examination, diagnostic local anesthesia, radiography and arthroscopy were used to arrive at the diagnosis. A cause could not be established, although perinatal deformation of cartilagenous carpal bone templates is suspected. A similar case of carpal bone fusion was found among carpi collected for an anatomical study, indicating this condition may be more common than expected. Clinicians should carefully evaluate the flexed lateral view of the carpus for proximal movement of the intermediate and ulnar carpal bones in young horses presented for carpal lameness. The significance of this condition will remain uncertain until its incidence and relationship to lameness are better defined.  相似文献   

Herniation of small intestine through the right lateral ligament of the bladder in a bull     

Trent AM  Bailey JV 《The Canadian veterinary journal. La revue veterinaire canadienne》1985,26(1):16-19

A three year old Charolais bull was examined because of anorexia and depression of five days duration and progressive abdominal distention. Intestinal obstruction was diagnosed. A right flank celiotomy allowed diagnosis and correction of a herniated jejunoileal loop through the right lateral ligament of the bladder. An annular constriction located in mid-ileum was by-passed by ileocecal side-to-side anastomosis. The bull's appetite and fecal production returned to normal within 72 hours of surgery. Ten months following discharge the bull was reported to be well.  相似文献