Myocardial lesions were studied in sheep in which gousiekte was induced by experimental dosage of Pachystigma pygmaeum, Fadogia homblei or Pavetta harborii. The single most consistent diagnostic histological feature in 33 animals was hypertrophy of myocardial fibres in the subendocardial region. Fibrosis in the subendocardial region of the apex or left ventricular wall was often scarce or absen...

The species compositions and structures of faunas different Late Pleistocene Holocene periods from the local natural area northeast Perm Pre-Urals (Specially Protected Nature Area (SPNA) «Mahnevskie Caves») were reseached. Zoogenic deposits Makhnevskaya ledyanaya cave Mahnevskaya-2 Bolshaya Mahnevskaya formed during relatively «warm» Mikulinsky interglacial, Bryansk megastadial Subboreal. 61 ta...

The spectrum of glueballs in 2+1 dimensions is calculated within an extended class of Isgur-Paton flux tube models and is compared to lattice calculations of the low-lying SU(N ≥ 2) glueball mass spectrum. Our modifications of the model include a string curvature term and different ways of dealing with the flux tube width. We find that the generic model is remarkably successful at reproducing t...

Predation by small mustelids is widely considered to be the most likely mechanism to maintain multiannual fl uctuations of vole populations in Fennoscandia. Apart from the direct effect of predation, small mustelids have been suggested to have indirect effects on vole population dynamics. We studied in a fi eld experiment the indirect effects of the presence of the least weasel (Mustela nivalis...

In cyclic vole populations the body size of voles tends to vary with population density, voles being smaller in the decline and low density phases than in the peak phase of the cycle. We have studied this ‘Chitty effect ̓ using fi eld measurements of vole (Microtus agrestis, M. rossiaemeridionalis) body size and predator densities, and laboratory experiments on the minimum passable hole size for...