We introduce a web-based, client-server computing infrastructure to assist the interactive navigation of large-scale astronomy observations. Large image datasets are partitioned into a spatial index structure that allows prefix-matching of spatial objects. In conjunction with pixel-based overlays, this approach allows fetching, displaying, panning and zooming of gigabit panoramas of the sky in ...

Abstract Die Reaktion von CHI 3 mit sechs Äquivalenten CrCl 2 in THF bei tiefen Temperaturen ergibt [Cr Cl (μ ‐Cl) ‐CH)(thf) 6 ] als den ersten hohen Ausbeuten isolierbaren Cr III ‐μ ‐Methylidinkomplex. Substitution der terminalen Chlorido‐Liganden via Salzmetathese Alkalimetall‐Cyclopentadieniden generiert die isostrukturellen Halbsandwich‐Chrom(III)‐μ ‐Methylidine [Cp R ‐CH] (Cp =C 5 H , C Me...

Nesta entrevista, propicio um espac?o de fala para o povo Guarani em relac?a?o a? questa?o ge?nero, atrave?s da lideranc?a indi?gena Kerexu Yxapyry. Reconhec?o que os povos indi?genas possuem muitos ensinamentos e precisamos, enquanto sociedade, escuta?-los seja possi?vel real estabelecimento sociedades mais igualita?rias, com equidade ge?nero respeito diversidade biocultural. foi a primeira Ca...

For the synthesis of ferric bis(trimethylsilyl)amido complex [Fe{N(SiMe3)2}3] literature gives differing synthetic protocols based on crystallization from solution. In this report we present a ‘solvent-free’ structural phase which was isolated by sublimation product obtained reaction 2 eq FeCl3 with 3 LiN(SiMe3)2 in benzene. It could be characterized single crystal as well powder XRD and elemen...

This paper discusses the methodological and ethical issues arising from a project that focused on conducting a qualitative study using participatory techniques with children and young people living in disadvantage. The main aim of the study was to explore the impact of poverty on children and young people’s access to public and private services. The paper is based on the author’s perspective of...

A general synthesis of γ-trifluoromethyl α,β-unsaturated γ-butyrolactones is described. The fluoride-catalyzed nucleophilic addition of a trifluoromethyl (CF3) group generated from (trifluoromethyl)trimethylsilane (CF3SiMe3, Ruppert-Prakash reagent) to a masked maleic anhydride 1 (cyclopentadiene-maleic anhydride adduct) provides the corresponding adducts 2 with high stereoselectivity. The γ-tr...

Abstract Plain bearings are increasingly being used under mixed friction, resulting in a higher risk of wear-induced failure. Therefore, the relevance condition monitoring is increasing, which can enable early detection wear inducing conditions. The presented work focuses on development an energy-autonomous, temperature-based system for plain . components to be integrated directly into machine ...

Abstract Two ferrocene‐based NHCs of the type fc[(NR) 2 C:] ( 1 R ; fc=1,1’‐ferrocenylene) containing benzylic N ‐substituents were synthesised from corresponding formamidinium compounds H[BF 4 ] by reaction with LiN(SiMe 3 ) . In case R=CH Ph (Bn), carbene was characterised through trapping reactions sulfur and selenium, which afforded fc[(NBn) CS] Bn S) CSe] Se), respectively. A thermally sta...