In this paper we calculate certain functional differentials in the Adams spectral sequence converging to Wu cobordism whose values may be thought of as Hopf invariants. These results are applied to reobtain Browder's characterization: if q + 1 = 2*, there is a 2q dimensional manifold of Kervaire invariant one if and only if hi survives to EX(S°). Introduction. In 1969 Browder [2] showed that th...

The article presents a series of numerical simulations of exact solutions of the Einstein equations performed using the Cactus code, a complete 3-dimensional machinery for numerical relativity. We describe an application (“thorn”) for the Cactus code that can be used for evolving a variety of exact solutions, with and without matter, including solutions used in modern cosmology for modeling the...

We show that the number of combinatorially distinct labelled d-polytopes on n vertices is at most (n/oo. A similar bound for the number of simplicial polytopes has previously been proved by Goodman and Pollack. This bound improves considerably the previous known bounds. We also obtain sharp upper and lower bounds for the numbers of real oriented and unoriented matroids with n elem...

The ectoparasitic mite Knemidokoptes jamaicensis Turk burrows into the cornified epithelium of the legs and feet of Passeriform birds and has been reported from 12 species of North American birds. Here we establish new host and distribution records for K. jamaicensis from eight species of birds from three habitats in the Dominican Republic. These species include Hispaniolan pewee (Contopus hisp...

In the past few years cortisone and A.C.T.H. have been used in the treatment of nephritis. In the nephrotic state these drugs frequently produce a diuresis (Farnsworth, 1950a; Luetscher, Deming and Johnson, 1951). In haemorrhagic nephritis, however, the results have been variable (Thorn, Merrill, Smith, Roche and Frawley, 1950; Heller, Jacobson and Hammarsten, 1951). The present paper reports a...

Many audio and multimedia applications would benefit from the ability to classify and search for audio based on its characteristics. The audio analysis, search, and classification engine described here reduces sounds to perceptual and acoustical features. This lets users search or retrieve sounds by any one feature or a combination of them, by specifying previously learned classes based on thes...

Within a few hours of injury or burning the number of eosinophils in the blood falls progressively to reach low or zero values and this eosinopenia (Fig. 1) lasts up to a few days (Laragh and Almy, 1948; Roche, Thorn, and Hills, 1950; Hardy, 1950; Sevitt, 1951, 1954; Evans and Butterfield, 195 1). The endocrine control of eosinopenia is known to be due to release of adrenocortical hormones thro...

Activity of the succinic dehydrogenase system was studied in Bacillus subtilis utilizing combined techniques of cytochemistry and electron microscopy. Organisms were incubated in a medium containing tetranitro-blue tetrazolium (TNBT) which served as an electron acceptor. Enzymatic activity, as evidenced by deposition of TNBT-formazan, was found on membranous organelles associated with the cytop...

We study the class of weakly locally modular geometric theories introduced in [5], a common generalization of the classes of linear SU-rank 1 and linear o-minimal theories. We nd new conditions equivalent to weak local modularity: weak one-basedness and the absence of type de nable almost quasidesigns. Among other things, we show that weak one-basedness is closed under reducts and generic predi...

For half a century, Galton’s problem has been a thorn in the side of cultural anthropologists, agitating them to print. Galton’s problem motivated the creators of all the major cross-cultural sampling frames to advocate selection of a single ethnographic description from each of up to hundreds of internally homogeneous culture areas. Why this happened is perplexing. Galton’s problem disappears ...