Accurate temperature measurements in reactive combustion systems are crucial for kinetic and heat transfer studies. Intrusive measurement methods, such as thermocouples, still widely used experimental research applications. Thin wire customized type B (Pt Rh6%-Pt Rh30%), coated with BeO (Beryllium oxide) - Y2O3 (Yttrium anti-catalytic ceramic, this study to measure the flame at low pressure of ...

Visual organs perceive environmental stimuli required for rapid initiation of behaviors and can also entrain the circadian clock. The larval eye of Drosophila is capable of both functions. Each eye contains only 12 photoreceptors (PRs), which can be subdivided into two subtypes. Four PRs express blue-sensitive rhodopsin5 (rh5) and eight express green-sensitive rhodopsin6 (rh6). We found that ei...

In a recent computational study [G. N. Vayssilov, B. C. Gates and N. Rösch, Angew. Chem., Int. Ed. Eng., 2003, 42, 1391], we found zeolite-supported Rh6 clusters, interacting with hydroxyl groups of the support, to undergo partial oxidation due to reverse spillover of hydrogen onto the metal cluster. Now, we have extended this model study to transition metal clusters M6 of the platinum and gold...

During the last twenty years the Polyhedral Skeletal Electron Pair Theory and the isolobal analogy have provided a theoretical basis for the rapid experimental developments, which have occurred in metal cluster chemistry. These theoretical principles have been underpinned by m.o. calculations on specific molecules and more generally by the Tensor Surface Harmonic Theory. This paper will review ...

Abstract: In-situ FTIR spectroscopy at 1 cm resolution was conducted on n-hexane solutions of Rh4(σ-CO)9(μ-CO)3 on the interval T=268-288 K and PT=0.1-7.0 MPa using either helium or carbon monoxide as dissolved gas. Analysis of the spectral data sets was conducted using BTEM in order to recover the pure component spectra. A new spectral pattern was recovered with terminal vibrations at 2041, 20...

People are constantly exposed to phthalates, due their common use in the production of plastics, pharmaceuticals, cosmetics and skin care products. The ability phthalates disrupt endocrine signaling, leading developmental, reproductive metabolic defects, has been studied, yet how interfere with these biological functions is still unclear. To uncover DBP interacting molecular pathways, we raised...

The compound eye of Drosophila melanogaster consists of about 750 ommatidia (unit eyes). Each ommatidium is composed of about 20 cells, including lens-secreting cone cells, pigment cells, a bristle cell and eight photoreceptors (PRs) R1-R8. The PRs have specialized microvillar structures, the rhabdomeres, which contain light-sensitive pigments, the Rhodopsins (Rhs). The rhabdomeres of six PRs (...

There is still no sharp discrimination between the terms ‘cluster’ and ‘nanoparticle’ in the literature. Clusters are mostly considered as species, exactly defined in chemical composition and structure, whereas the expression ‘nanoparticle’ usually means particles of less precise characterization, often linked with a certain size distribution and so to some extent substitutes the historical exp...

Late-transition-metal (low-oxidation state) clusters, with p-acceptor ligands and early-transition-metal (high-oxidation state) clusters, with p-donor ligands, have been intensively studied for several decades. Apart from the fascinating structural aspects of cluster compounds and rationalization of their bonding, much motivation for their study has been driven by potential applications. It was...