A hydrogen-1 nuclear magnetic resonance, mass spectral and extended Hückel study of some olefin complexes of rhodium(I) and iridium(I) and the crystal and molecular structure of η4-2,4-dimethylpenta-1,4-diene(η5-formylcyclopentadienyl)rhodium(I)

A 1H NMR study of monosubstituted η-cyclopentadienyl-rhodium(I) complexes of type LLRh(C5H4X) and -iridium(I) complexes of type L2Ir(C5H4X) (L = ethene, LL = 1,3- or 1,5-diolefin; X = C(C6H5)3, CHO, or COOCH3) has been carried out. For complexes of both metals in which the neutral ligand is ethene or a non-conjugated diolefin the NMR spectra of the cyclopentadienyl protons are unusual in that H(2), H(5) resonate to high field either at room temperature or below. The corresponding NMR spectra for the cyclopentadienyl ring protons of complexes where the neutral ligand is a conjugated diene are, with one exception, normal. A single crystal X-ray structural analysis of (η4-2,4-dimethylpenta-1,4-diene)(η5-formylcyclopentadienyl)rhodium(I) (which exhibits an abnormal 1H NMR spectrum) reveals substantial localisation of electron density in the C(3)C(4) Cp ring bond (1.283(33) Å) which may be consistent with a contribution from an ‘allyl-ene’ rotamer to the ring—metal bonding scheme. An extended Hückel calculation with self consistent charge iteration was performed on this complex. The results predict a greater Mulliken overlap population for the C(3)C(4) bond in the cyclopentadienyl ring and show that the localisation is dependent on both the Cp ring substituent and the nature of the diolefin. The mass spectral fragmentation patterns of some representative diene complexes of iridium(I) and rhodium(I) are presented.

Influence of 10 wk of soy consumption on plasma concentrations and excretion of isoflavonoids and on gut microflora metabolism in healthy adults

Although interindividual variation in isoflavone metabolism was high, intraindividual variation was low. Only concentrations of O-DMA in plasma and urine appeared to be influenced by sex. Chronic soy consumption does not appear to induce many significant changes to the gut metabolism of isoflavones other than higher beta-glucosidase activity.

Securing Peace in Europe, 1945-62: Thoughts for the Post-Cold War Era

Articles include: Beatrice Heuser: ‘Stalin as Hitler's Successor: Western Interpretations of the Soviet threat', pp. 17-40

Cation distribution and mixing thermodynamics in Fe/Ni thiospinels

The structural analogy between Ni-doped greigite minerals (Fe3S4) and the (Fe,Ni)S clusters present in biological enzymes has led to suggestions that these minerals could have acted as catalysts for the origin of life. However, little is known about the distribution and stability of Ni dopants in the greigite structure. We present here a theoretical investigation of mixed thiospinels (Fe1

Harnessing microbiome and probiotic research in sub-Saharan Africa: recommendations from an African workshop

To augment capacity-building for microbiome and probiotic research in Africa, a workshop was held in Nairobi, Kenya, at which researchers discussed human, animal, insect, and agricultural microbiome and probiotics/prebiotics topics. Five recommendations were made to promote future basic and translational research that benefits Africans.

ÅTTA NYANSER AV ROSA? : Riksdagspartiernas anpassning efter Feministiskt initiativ efter Europaparlamentsvalet 2014.

Uppsatsen har som syfte att undersöka förändringen i användningen av begrepp kopplade till partiet Feministiskt initiativ mellan riksdagsvalet år 2010 och år 2014 hos de sittande riksdagspartierna. Utifrån detta syftar uppsatsen även till att undersöka huruvida det går att utläsa mönster i den eventuella förändringen med utgångspunkt i deras placering i det politiska spektrumet. Studiens primärkällor är valmanifest, valaffischer samt almedalstalen från de nuvarande sittande riksdagspartierna. Dessa källor har bearbetats utifrån en kvantitativ deskriptiv innehållsanalys (almedalstal samt valmanifest), deskriptiv kvalitativ innehållsanalys (valaffischerna) samt en kvalitativ innehållsanalys (valmanifesten). Resultaten från dessa analyser har studerats utifrån Bonnie Meguids teori kring etablerade partiers möjlighet att påverka framgången hos nischade partier, samt Anthony Down’s teori som syftar till att förklara varför partier väljer att vara flexibla gentemot åsikts-strömningar, även om åsikten tidigare inte varit en fokusfråga hos partiet. Slutsatserna visar att det finns en påverkan på alla nuvarande sittande riksdagspartier utom Moderaterna, och att det inte går att utläsa något mönster på partiernas anpassning till Feministiskt initiativ utifrån politisk färg. Majoriteten av de undersökta partierna har valt ett följsamt förhållningssätt till Feministiskt initiativ, vilket innebär att de valt att anamma de frågor som Feministiskt initiativ lyfter.

Análise do setor da agências de internet no Brasil : uma aplicação de simulação dinâmica de sistemas

Esta dissertação tem por objetivo analisar a participação de mercado dos diferentes grupos estratégicos que compõem o setor de agências de internet no Brasil, bem como as mudanças decorrentes de alterações nas variáveis críticas de concorrência, tais como preço, investimento em propaganda, investimento em tecnologia e disponibilidade de mão-de-obra.

Influence of Intensive Agriculture on Dry Deposition of Aerosol Nutrients

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

A construção da imagem do imperador Augusto nas obras de Veléio Patérculo, Plutarco e Suetônio

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Brazil in the 1990s: an economy in transition

Includes bibliography

Macro- and microeconomic aspects of the reforms

Includes bibliography