The Dufour gland of both queens and workers of Meranoplus diversus is very large. The reservoir is lined with flat epithelial cells, which usually contain smooth endoplasmic reticulum but also show the unusual accumulation of electrondense inclusions. Chemically, the gland contains an unusual mixture of long-chain fatty acids and their derivatives, including hydrocarbons, ketones and amines wit...

Gas clouds under the influence of gravitation in thermodynamic equilibrium cannot be isothermal due to the Dufour effect, the energy flux induced by density gradients. In galaxy clusters this effect may be responsible for most of the ”cooling flows” instead of radiative cooling of the gas. Observations from XMM-Newton and Chandra satellites agree well with model calculations, assuming equilibri...

Jean-Antoine Rioux*, Marie-Claude Durette-Desset, Jean-Louis Albaret, Christiane Bayssade-Dufour, Jimmy Cassone, Irène Landau, Annie Petter, and Roselyne Tchéprakoff 1 Honorary Professor of Parasitology (Montpellier), Former President of the French Society of Parasitology, Faculté de Médecine, Université Montpellier 1, 1 rue de l’École de Médecine, 34000 Montpellier, France 2 Ex-members of ‘‘La...

The distribution of the genus Stenelmis (Elmidae) of the Caucasus is reviewed based on materials collected by the authors and examined specimens stored in accessible collections. One of the two species present in this region, represented by the subspecies Stenelmis consobrina consobrina Dufour, 1835, is recorded for the first time in Krasnodar Krai and possibly in Armenia; Stenelmis puberula Re...

We set up a discrete space-time dynamical model of molecules with thermalised kinetic energy and repulsive cores, in an external potential. The model obeys the first and second laws of thermodynamics. The continuum limit, obtained using a MAPLE program, gives rise to coupled reaction-diffusion equations for the density and temperature fields. The system obeys Onsager symmetry and exhibits the S...

D ufour G land, Harpagoxenus, Heptadecane, (£)-ß-Farnesene, Homofarnesene The volatile components of tlic Dufour gland sccrcticn of wcrlvcrs cf t*!C eint arpoxeni+s sublaevis have been analysed by gas chromatography and mass spectrometry. Over 20 compo­ nents have been identified, consisting of linear and terpenoid hydrocarbons. Each gland contains approximately 6 ng of hydrocarbons with n-hept...

& 2017 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. The accompanying comment can be viewed at http://dx.doi.org/10.1098/rstb.2017.0148; http://dx.doi.org/10.1098/rstb.2015.0476. Vendozoa and selective forces...

Double diffusion flow of Jeffrey fluid in presence nanoparticles is studied theoretically under time dependent thermal conductivity. The considered are evaporated over convectively heated surface which moves periodically its own plane. appropriate dimensionless variables employed to obtain the forms governing equations. We computed analytical solution non-linear differential equations by utiliz...

Combination of approaches for speaker role recognition In this article, we are particularly interested in recognizing speaker role inside broadcast news shows. Previous studies highlighted a link between speech spontaneity and speaker roles. An automatic spontaneous speech detection system has already been applied to recognize speaker roles, without any change in the method process (Dufour et a...