1. Previous work has shown that fifth-instar nymphs of Locusta migratoria (L.) compensate for a dilution of their dietary protein by reducing intermeat interval (Simpson & Abisgold, 1985). 2. The effect of dietary protein on intermeal interval is regulated, either directly or indirectly, by the osmolality and free amino acid content of the haemolymph (Abisgold & Simpson, 1987). 3. The possibili...

In his study [7] on quartic integrals, Moll met a specialized family of Jacobi polynomials. Moll conjectured that the corresponding coefficient sequences are log-concave. In this paper we settle Moll’s conjecture by a non-trivial usage of computer algebra.

In this paper, we consider a play-like hysteresis operator defined by an n order rate-independent differential system. We investigate the properties of the operator for n = 1 and n = 2. We show that the operator for n = 2 satisfies a one-step wiping out property. This result can be extended to show that the n order operator satisfies an (n − 1)-th step wiping out property. Thus the new family o...

G136, figure 1

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 ...

3-Hydroxy-2-(4’-methoxyphenyl)-4-oxo-4H-l-benzopyran (HMPB) forms a yellow colored (1:3) complex with niobium (V), which is extracted into dichloromethane from 1.04–4.40 molL -1 HClO4 solution showing an absorption maximum at 398 – 412 nm (figure curve A: 1.0 μg Nb ml -1 versus blank; curve B: blank versus DCM) with Beer's law range of 0–1.3 μg Nb ml -1 , molar absorptivity of 3.764 10 4 L mol ...

The research focused on the hydrothermal synthesis of a material based Kesterite structure Cu2ZnSnS4 (CZTS). For this purpose, component cations, in concentrations 1.0 molL-1, were placed steel autoclave under different temperatures conditions (200, 220, 240, 260 and 280°C) for 32 h. After, solids calcined at 400°C 2 UV-VIS results showed that materials had strong tendency to absorb region 600-...

Febrile convulsions in childhood constitute one of the commonest medical emergencies in paediatric practice. Although the aetiology, clinical picture, treatment and possible sequelae are described and discussed in the standard paediatric literature, little or no mention is made of the exact cerebrospinal fluid (C.S.F.) composition in this condition (Sheldon, 1951; Grulee and Eley, 1952; Collis,...