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Engine tests have been performed on a 9.6 liter spark-ignited engine fueled by natural gas and a mixture of 25/75 hydrogen/natural gas by volume. The scope of the work was to test two strategies for low emissions of harmful gases; lean burn operation and stoichiometric operation with EGR and a three-way catalyst. Most gas engines today, used in city buses, utilize the lean burn approach to achieve

The coronary arteries of the isolated rabbit heart were perfused with different contrast media (CM). The effects on cardiac contractile force (CF) from enriching iohexol solutions with sodium, calcium, potassium, magnesium and oxygen were investigated. The effects were studied during normal and reduced perfusion pressure; the latter was intended to simulate flow conditions distal to proximal steno

Purpose To describe corneal surface changes in keratoconjunctivitis sicca (KCS). Methods In all 23 patients with KCS were examined with the slit lamp and photographed by non-contact photomicrography. Results Without staining, grey surface cells and small epithelial cysts were visible. Application of fluorescein sodium resulted in two types of micropunctuate (15-30 mum) staining, a nonfluorescent (

To evaluate the performance of dried blood spots (DBSs) with subsequent analyses of glutamic acid decarboxylase (GADA) and islet antigen-2 (IA-2A) with the RSR-ELISAs, we selected 80 children newly diagnosed with type 1 diabetes and 120 healthy women. DBSs from patients and controls were used for RSR-ELISAs while patients samples were analysed also with in-house RIAs. The RSR-ELISA-GADA performed

Mikrotexturer är mikrometerstora avtryck på kvartskornens ytor samt på korn med andra mineralogiska egenskaper. Kvartskorn, som förekommer i de flesta sedimentära miljöer, innehåller mikrotexturer som undersöks särskilt på grund av kvartsmineralets unika mineralogiska egenskaper som möjliggör bevarandet av mikrotexturer genom olika miljöer. I denna studien är mikrotexturer en viktig källa för att Microtextures are micrometer-sized imprints on the surfaces of quartz grains and on grains with other mineralogical compositions. Quartz grains, which occur in most sedimentary environments, contain microtextures which are especially studied due to quartz unique mineralogical properties allowing for preservation of microtex-tures through different environments. In this study, microtextures are an

This paper aims to examine the crucial historical events that have influenced Swedish arms export policy between 1980 and 2018, using the theories Policy Diffusion and Punctuated Equilibrium Theory to examine the results in a more nuanced and broader way. The study aims to provide a deeper understanding of how changes in domestic policy, international cooperation, security concerns and technologic

Vertebratkoproliter från de yngre kretaceiska (Campan) sedimenten vid Åsen, en lokal belägen i den nordliga delen av Kristianstadbassängen, har här beskrivits och illustrerats med det huvudsakliga målet att bestämma deras värddjur. Deras fekala ursprung kunde bekräftas vid en kemisk analys, emedan de huvudsakligen visades bestå av kalciumfosfat, ett ämne intimt förknippat med koproliter. Fem exempVertebrate coprolites from the Upper Cretaceous (Campanian) of the Åsen locality, Kristianstad Basin, southern Sweden, are described and illustrated. Their fecal origin was supported through chemical analyses revealing a calcium phosphate composition. Five specimens were chosen for detailed description and analyses and these were sub-divided into three different groups of ichnotaxa. Because of the

The field of Quaternary science has, through a long history of high-quality research, produced a vast record of evidence regarding ice sheet dynamics. Consequently, our understanding of such processes and their effects are well understood. However, historically the predominant focus has been of a loose sediment perspective, which has resulted in limited insight into ice-bedrock dynamics. This is i

Purpose Description of mucus on the corneal surface and in the precorneal tear film in keratoconjunctivitis sicca (KCS). Methods In all, 24 patients with KCS examined with slit lamp and by non-contact photomicrography. Results Material interpreted as mucus seemed to exist in three varieties: one optically dense, light reflecting, and with definite forms ( fine threads, variously thick and long str

We study active human visuo-locomotive experience in everyday navigation from the viewpoints of environmental familiarity, embodied reorientation, and (sensorimotor) spatial update. Following a naturalistic, in situ, embodied multimodal behaviour analysis method, we conclude that familiar users rely on environmental cues as a navigation-aid and exhibit proactive decision-making, whereas unfamiliar

Politices kandidat programmet (180 poäng) Reg. no. U 2016/161 A. Master of Science Programme (120 credits) in Human Ecology - Culture, Power, and Sustainability Credits: 120 credits Cycle: Second cycle Programme code: SAHEK The syllabus was approved by the Board of the Faculty of Social Sciences on 23 April, 2009. The syllabus was revised by the Dean on 10 June 2010 and March 31st 2016. This sylla

https://www.keg.lu.se/sites/keg.lu.se/files/sahek_beslut_2016-03-31.doc - 2026-07-05

Politices kandidat programmet (180 poäng) Reg. no. U 2016/161 A. Master of Science Programme (120 credits) in Human Ecology - Culture, Power, and Sustainability Credits: 120 credits Cycle: Second cycle Programme code: SAHEK The syllabus was approved by the Board of the Faculty of Social Sciences on 23 April, 2009. The syllabus was revised by the Dean on 10 June 2010 and March 31st 2016. This sylla

https://www.keg.lu.se/sites/keg.lu.se/files/sahek_beslut_2016-03-31.pdf - 2026-07-05

Solid Waste Management RECOMMENDATIONS FOR KISUMU, KENYA Mistra Urban Futures Policy Brief 2019:1 Kisumu City generates approximately 400 tonnes of solid waste per day, 20%- 25% of which is collected to the open dump site. Of the total municipal solid waste that is collected, 65% is organic and another 27% is recyclable (County of Kisumu, 2015). The collection and handling of municipal solid waste

https://www.lucsus.lu.se/sites/lucsus.lu.se/files/policy-brief-2019-final-draft_barry_ness.pdf - 2026-07-05

The volcano Rangitoto belongs to the Auckland volcanic field and is situated north east of Auckland city, New Zealand. The volcanos of the Auckland volcanic field have previously thought to be of monogenetic origin, but recent studies indicate that Rangitoto has a long history of eruptions, which would suggest that the volcanic system may have entered a new phase. The last eruption is dated to 500