The Western Meadowlark at Racine, Wisc., Etc.
نویسندگان
چکیده
منابع مشابه
Sophie Racine
The first [4+2]-annulation between aminocyclobutanes and aldehydes to access tetrahydropyranyl amines is reported. With phthalimido cyclobutane dicarboxylates and aromatic aldehydes, tetrahydropyrans were obtained in 53-92% yield and 3:117:1 dr using scandium triflate or iron trichloride as catalyst. The use of thymineor fluorouracilsubstituted cyclobutanes gave direct access to six-membered ri...
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Pathogenicity of adult and third-stage Microtetrameres centuri Barus, 1966 in meadowlarks (Sturnella spp.) is reported for the first time. Adults do not encyst; their effects are mainly mechanical. Some glandular atrophy of its avian host is detected but no marked inflammatory response is exhibited. Juveniles also encyst experimentally in the perivisceral sinus of the grasshopper (alternate hos...
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ژورنال
عنوان ژورنال: The Auk
سال: 1895
ISSN: 0004-8038,1938-4254
DOI: 10.2307/4068315