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Fragmentation of Continental United States Forests
AbstractWe report a multiple-scale analysis of forest fragmentation based on 30-m (0.09 ha pixel−1) land-cover maps for the conterminous United States. Each 0.09-ha unit of forest was classifiedExpand
The ultrastructure of the Schistosoma mansoni egg.
Helminth eggs have resisted analysis by electron microscopy because fixatives, dehydrating agents, and embedding media penetrate these eggs poorly. Slam-freezing at liquid nitrogen temperatureExpand
Description of Sarcocystis falcatula stiles, 1893, a parasite of birds and opossums.
Sarcocystis falcatula Stiles, 1893 is re-described. Intermediate hosts of the parasite which was earlier described as Sarcocystis debonei Vogelsang, 1929 are species of passeriform, psittaciform, andExpand
Physiological determinants of performance on an indoor military obstacle course test.
Obstacle courses (OCs), physical challenge courses, and confidence courses are valuable in training and assessing military troops. However, OCs are not well characterized with regard to physicalExpand
Postmortem diagnosis of autochthonous acute chagasic myocarditis by polymerase chain reaction amplification of a species-specific DNA sequence of Trypanosoma cruzi.
We report a fatal case of vector-transmitted acute Chagas' myocarditis in a seven-month-old child in south Texas. This diagnosis was not suspected during the three days of hospitalization thatExpand
Comparison of formalin-ethyl ether sedimentation, formalin-ethyl acetate sedimentation, and zinc sulfate flotation techniques for detection of intestinal parasites.
Formalin-ethyl ether sedimentation, Formalin-ethyl acetate sedimentation, and zinc sulfate flotation techniques were compared using over 250 clinical parasitology specimens. Fifty positive specimensExpand
Renal responses to exercise, heat and dehydration.
Pathogenesis of Sarcocystis falcatula (Apicomplexa: Sarcocystidae) in the budgerigar (Melopsittacus undulatus). III. Pathologic and quantitative parasitologic analysis of extrapulmonary disease.
Forty-four budgerigars (Melopsittacus undulatus) were administered sporocysts of Sarcocystis falcatula orally and were examined at necropsy intervals from less than 12 hr to 168 days. Tissue wereExpand
Clinical features and long‐term prognosis of trochlear headaches
Trochlear headaches are a recently recognized cause of headache, of which both primary and inflammatory subtypes are recognized. The clinical features, long‐term prognosis and optimal treatmentExpand
The integument of Schistosoma mansoni.
Abstract The structure of the integument of Schistosoma mansoni is described by histochemical and electron-microscopical study, and the effects of incubating adult schistosomes in buffered saline,Expand