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Manganese-Catalyzed Autoxidation of Dissolved Sulfur Dioxide in the Atmospheric Aqueous Phase

Autoxidation of SO2(aq) in the presence of manganese(II) is one of the important pathways for sulfuric acid formation in atmospheric clouds and fogs. Recent experimental results indicating that the catalyzed reaction takes place via a complex free-radical mechanism are discussed. Previous literature is reviewed in the light of this mechanism. Under atmospheric conditions of low total concentrationAutoxidation of SO2(aq) in the presence of manganese(II) is one of the important pathways for sulfuric acid formation in atmospheric clouds and fogs. Recent experimental results indicating that the catalyzed reaction takes place via a complex free-radical mechanism are discussed. Previous literature is reviewed in the light of this mechanism. Under atmospheric conditions of low total concentration

Kinetics and Mechanism for Reduction of Tetrachloroaurate(III), trans-dicyanodichloroaurate(III), and trans-dicyanodibromoaurate(III) by Sulfite and Hydrogen Sulfite

Reduction of [AuCl4]- and trans-[Au(CN)2X2]- (X = Cl, Br) by sulfur(IV) as SO2.nH2O, HSO3-, and SO3(2-) has been studied at 25-degrees-C in aqueous solution with ionic strength 1.0 M and 0 < pH < 2.3 by use of stopped-flow spectrophotometry. Redox takes place directly without initial substitution at the gold(III) centers with stoichiometry Au(III):S(IV) = 1:1 and with Au(I) complexes and HSO4- as

The prosodic expression of focus, contrast and givenness : A production study of Hungarian

This paper reports the results of a production experiment that explores the prosodic realization of focus in Hungarian, a language that is characterized by obligatory syntactic focus marking. Our study investigates narrow focus in sentences in which focus is unambiguously marked by syntactic means, comparing it to broad focus sentences. Potential independent effects of the salience (textual givenn

Finansministern i domkapitlet : Ernst Wigforss som ledamot av Göteborgs domkapitel 1918−1936

Ernst Wigforss (1881−1977) was Minister of Finance in Sweden 1925−26, 1932−36, and 1936−49, and one of the great ideologists of Swedish SocialDemocracy. During 1918−36 he was also a member of the Chapter in the Diocese of Gothenburg, Church of Sweden.Before 1937, lecturers in the old grammar schools were ex officiomembers of the diocesan chapter. The agnostic Wigforss took his seat in the chapter

Approach for process innovative design based on SOA

Solving process problem needs the support of method and knowledge. To organize relative resources in accordance with requirement, an innovative process design service model based on service-oriented architecture was proposed. Strategy service and knowledge service were built from the dimensions of knowledge, method and computer aided tool. The ontology of services was built, and the system archite

Road Safety Management – The need for a systematic approach

In order to achieve significant improvements in road safety at the national level, there is a need for a systematic approach to road safety management with clear responsibilities and accountability. In this paper – after a review of the literature on guidelines, recommendations and research findings – twelve essential elements of such a systematic approach is pointed out, and corresponding relevanIn order to achieve significant improvements in road safety at the national level, there is a need for a systematic approach to road safety management with clear responsibilities and accountability. In this paper – after a review of the literature on guidelines, recommendations and research findings – twelve essential elements of such a systematic approach are pointed out, and corresponding releva

Negative feedback enables structurally signed steady-state influences in artificial biomolecular networks

We examine the capacity of artificial biomolecular networks to respond to perturbations with structurally signed steady-state changes. We consider network architectures designed to balance their output production as a function of downstream demand: the species producing the output, called a source, up- or down-regulates its production rate as a function of the demand. Using an exact algorithm we s

Asymmetries : Conceptualizing Environmental Inequalities as Ecological Debt and Ecologically Unequal Exchange

I centrum för denna sammanläggningsavhandling, som består av sex artiklar och ett introduktionskapitel, står koncepten ekologisk skuld, klimatskuld, ekologiskt ojämnt utbyte och ojämn appropriering av kolsänkor. Begreppens idéhistoria och politiska historia spåras bakåt till miljörättviserörelsen, ekologisk ekonomi och neo-marxistisk ekonomi. De utvecklas konceptuellt och länkas samman analytiskt In this compilation thesis, consisting of six papers and an introductory chapter, the concepts of ecological debt, climate debt, ecologically unequal exchange, and unequal carbon sink appropriation are at the centre. Their intellectual and political histories are traced to environmental justice movements, ecological economics and neo-Marxist economics. They are developed conceptually and linked to

Neighboring genes for DNA-binding proteins rescue male sterility in Drosophila hybrids

Crosses between closely related animal species often result in male hybrids that are sterile, and the molecular and functional basis of genetic factors for hybrid male sterility is of great interest. Here, we report a molecular and functional analysis of HMS1, a region of 9.2 kb in chromosome 3 of Drosophila mauritiana, which results in virtually complete hybrid male sterility when homozygous in t

Packet routing and frame length optimization in wireless mesh networks with multicast communications

The paper considers multi-hop wireless mesh networks that serve multicast periodic packet traffic. The packets from each packet stream are generated at the stream's source node and traverse a number of wireless nodes in order to reach their multiple destination nodes. Packet periodicity means that a common repeatable frame of time slots is defined and that the packets to be transmitted arrive at t

Roscoe Owen Brady, MD : Remembrances of co-investigators and colleagues

To celebrate the research visions and accomplishments of the late Roscoe O. Brady (1923-2016), remembrance commentaries were requested from several of his postdoctoral research fellows and colleagues. These commentaries not only reflect on the accomplishments of Dr. Brady, but they also share some of the backstories and experiences working in the Brady laboratory. They provide insights and perspec