We studied the herpetofaunal community from the Atlantic forest of Morro São João, in Rio de Janeiro State, Brazil, and present data on species composition, richness, relative abundance and densities. We combined three sampling methods: plot sampling, visual encounter surveys and pit-fall traps. We recorded sixteen species of amphibians and nine of reptiles. The estimated densities (based on re...

ion in this case N must also be an abstraction for both (i) and (ii) and neither N → h R nor N p R for any p,R. application in this case M = M1M2 We prove (i) first, analysing the possible forms of M1 • Assume M1 is not an abstraction In this case IApp1 applies, so we know N = N1N2, M1 int ⊲ N1, and M2 ⊲N2. Since M1 int ⊲ N1, N1 is not an abstraction, then the only applicable rule for N → h R i...

We derive the BPS equations satisfied by lump solitons in (2+1)-dimensional sigma models with toric 8-dimensional hyper-Kähler (HK8) target spaces and check they preserve 1 2 of the supersymmetry. We show how these solitons are realised in M theory as M2-branes wrapping holomorphic 2-cycles in the E ×HK8 background. Using the κ-symmetry of a probe M2-brane in this background we determine the su...

Let M be a compact Riemannian manifold, and let ∆ = ∆M denote the Laplace– Beltrami operator of M acting on L2(M). The eigenvalue spectrum E (M) consists of the eigenvalues of ∆ listed with their multiplicities. Two manifolds M1 and M2 are said to be isospectral if E (M1) = E (M2). Geometric and topological constraints are forced on isospectral manifolds; for example if the manifolds are hyperb...

For a simple graph G with n vertices and m edges, the inequality M1(G)/n ≤ M2(G)/m, where M1(G) and M2(G) are the first and the second Zagreb indices of G, is known as Zagreb indices inequality. According to this inequality, a set S of integers is good if for every graph whose degrees of vertices are in S, the inequality holds. We characterize that an interval [a, a+n] is good if and only if a ...

Let M1 and M2 be orientable irreducible 3–manifolds with connected boundary and suppose ∂M1 = ∂M2. Let M be a closed 3–manifold obtained by gluing M1 to M2 along the boundary. We show that if the gluing homeomorphism is sufficiently complicated, then M is not homeomorphic to S and all small-genus Heegaard splittings of M are standard in a certain sense. In particular, g(M) = g(M1) + g(M2) − g(∂...

Regulation of mitochondrial respiration both by endogenous and exogenous ADP in the cells in situ was studied in isolated and permeabilized cardiomyocytes, permeabilized cardiac fibers and 'ghost' fibers (all with a diameter of 10-20 micro m) at different (0-3 micro moll(-1)) free Ca(2+) concentrations in the medium. In all these preparations, the apparent K(m) of mitochondrial respiration for ...

AEBTFLWT The Casimir energy is evaluated for a free scalar field that has a mass term m2(q), depending on one space coordinate 21. The formalism for evaluating the Casimir energy is developed for the case of m2(q) finite everywhere in d-dimensional space-time. The case with m2(q) = m$9(L/2-1x11) + m&O(]q]-L/2) is explicitly evaluated for any value of mo and moo without any approximation. The re...

We used confocal laser scanning microscopy to validate a new and fast co-labelling method to study the distribution of mitochondria-rich (MR) cells in gill filaments and to differentiate between MR cells that are in contact with the water (cells labelled with both DASPMI and Concanavalin-A) and those that are not (DASPMI-positive only). This method was used to describe differences in MR cell de...

Solidification cracking is a key phenomenon associated with defect formation during welding. To elucidate the failure mechanisms, solidification cracking during arc welding of steel are investigated in situ with high-speed, high-energy synchrotron X-ray radiography. Damage initiates at relatively low true strain of about 3.1% in the form of micro-cavities at the weld subsurface where peak volum...