Spotting the Atoms in Grain Boundaries: To know how the boundaries between crystals affect polycrystalline structural and electronic materials, it is necessary to know quantitatively where the atoms are     

Robinson AL 《Science (New York, N.Y.)》1986,233(4766):842-844

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Electron Microscope Inventors Share Nobel Physics Prize: Ernst Ruska built the first electron microscope in 1931; Gerd Binnig and Heinrich Rohrer developed the scanning tunneling microscope 50 years later     

Robinson AL 《Science (New York, N.Y.)》1986,234(4778):821-822

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Science teaching surveyed: science education in global perspective     

Klopfer LE 《Science (New York, N.Y.)》1986,232(4753):1010-1011

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Pioneer laboratories:willis R. Whitney, general electric, and the origins of u.s. Industrial research and the making of american industrial research     

Brittain JE 《Science (New York, N.Y.)》1986,232(4758):1651

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Voyager Finds Uranian Shepherds and a Well-Behaved Flock of Rings: Voyager 2 discovered the moonlets predicted to shape the Uranian rings, two new rings, a predominance of boulders in the rings, and much more     

Kerr RA 《Science (New York, N.Y.)》1986,231(4740):793-796

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The tunneling microscope: a new look at the atomic world     

Golovchenko JA 《Science (New York, N.Y.)》1986,232(4746):48-53

A new instrument called the tunneling microscope has recently been developed that is capable of generating real-space images of surfaces showing atomic structure. These images offer a new view of matter on an atomic scale. The current capabilities and limitations and the physics involved in the technique are discussed along with specific results from a study of silicon crystal surfaces.  相似文献   

Chemical oceanography: geochemistry of organic matter in the ocean     

Suess E 《Science (New York, N.Y.)》1986,232(4753):1032

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Are breeder reactors still necessary?     

Weinberg AM 《Science (New York, N.Y.)》1986,232(4751):695-696

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Corynebacterium equi Infections in Horses, 1958-1984: A Review of 131 Cases   总被引：6，自引：0，他引：6       下载免费PDF全文

Zink MC  Yager JA  Smart NL 《The Canadian veterinary journal. La revue veterinaire canadienne》1986,27(5):213-217

Of 131 cases of Corynebacterium equi infection in horses submitted for necropsy to the Ontario Veterinary College or Veterinary Laboratory Services, OMAF, Guelph, Ontario from 1958 to 1984, 115 were diagnosed as suppurative pneumonia, and of these 55 had associated ulcerative enterocolitis. Only five animals had intestinal involvement without pulmonary lesions. The remaining 11 cases included arthritis/cellulitis, skin abscesses and submandibular lymphadenitis. While the lung, intestine and associated lymph nodes yielded C. equi most frequently, in 21% of cases C. equi was also cultured from parenchymatous organs (spleen, liver or kidney) or blood. Corynebacterium equi infection accounted for 10% of all foals submitted for postmortem examination and 45% of all foals with pneumonia. Affected foals were one to four months of age. Submissions occurred between the months of May and August with a peak during July. There was a significantly greater prevalence of C. equi infection in Standardbreds when compared with other breeds. Of foals in this study, 36% were from farms which had had other horses succumb to this disease. Of the foals with pulmonary involvement, 21% did not have fever or clinical signs referable to the respiratory or gastrointestinal systems, findings which indicated that a large percentage of cases were subclinical.  相似文献   

A Field Trial of a Pilated Moraxella bovis Bacterin for the Prevention of Infectious Bovine Keratoconjunctivitis          下载免费PDF全文

Bateman KG  Leslie KE  Scholl TP 《The Canadian veterinary journal. La revue veterinaire canadienne》1986,27(1):23-27

Two field trials were conducted to evaluate the efficacy of a Moraxella bovis bacterin in the control of infectious bovine keratoconjunctivitis. The bacterin did not affect the incidence of infectious bovine keratoconjunctivitis in either trial but did appear to reduce the severity of lesions, treatments required and withdrawals from pasture required in one trial. Possible reasons for the apparently contradictory results are offered. It is suggested that the bacterin may be of some value when used in conjunction with other preventive measures.  相似文献