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Background: The aim of this study was to explore the feasibility of using a technique based on artificial neural networks for quality assurance of image reporting. The networks were used to identify potentially suboptimal or erroneous interpretations of myocardial perfusion scintigrams (MPS). Methods: Reversible perfusion defects (ischaemia) in each of five myocardial regions, as interpreted by on
Complexes of the type trans-[PtPhFL2], where L = PPh3 (4), PMe2Ph (5), were synthesized. Complex 4 was characterized by X-ray crystallography. The equilibrium constant for the substitution of the fluoride trans to phenyl in 4 by Cl- and I- was determined, and the stability sequence follows the normal trend seen in "soft" metal centers: i.e., the Pt has a preference for the halide in the order I >
We have previously demonstrated intracellular degradation of the heparan sulfate side-chains in recycling glypican-1 by heparanase and by deaminative cleavage at N-unsubstituted glucosamine with nitric oxide derived from intrinsic nitrosothiols [see Ding, K., Mani, K., Cheng, F., Belting, M. and Fransson, L.-. (2002) J. Biol. Chem., 277, xxx-xxx; prepub M203383200]. To determine where and in what
Mycorrhizal symbioses -- the union of roots and soil fungi -- are universal in terrestrial ecosystems and may have been fundamental to land colonization by plants1,2. Boreal, temperate, and montane forests all depend upon ectomycorrhizae1. Identification of the primary factors that regulate symbiotic development and metabolic activity will therefore open the door to understanding the role of 2 ect
Magnetic resonance imaging enables detailed in vivo study of complex flow through 3D, time-resolved phase contrast imaging (4D flow). 4D flow may reveal previously unknown aspects of the physiology of intracardiac blood flow, and possibly elucidate pathophysiological processes that have yet to manifest themselves outside the heart.The purpose of this thesis is to examine the physiological role of
Background We attempt to develop a relatively comprehensive structural model of risk factors for drug abuse (DA) in Swedish men that illustrates developmental and mediational processes. Methods We examined 20 risk factors for DA in 48,369 men undergoing conscription examinations in 1969–70 followed until 2011 when 2.34% (n = 1134) of them had DA ascertained in medical, criminal and pharmacy regist
In 2010 the Mozilla Foundation established the Digital Open Badges concept as a virtual incarnation of physical counterparts such as a paper certificate or a youth organisation merit badge. Digital Open Badges offer embedded, verifiable, metadata containing information such as the issuer and award criteria. Open Badges can be used to reward learning, participation or achievement. They can be store
In the present work a detailed kinetic soot model is applied to study the formation and oxidation of soot particles in laminar premixed and turbulent non-premixed flames. The soot model used in this study is based on a detailed description of the chemical and physical processes involved in the formation of soot. In the first part of the study the soot model is extended to include the formation of
Popular Abstract in Swedish I september 1989 kom det till kanadensiska mi’kmaqindianers kännedom att ett enormt granitbrott (ett av de tre största i världen) planerades att öppnas vid Kellys Mountain på ön Cape Breton i östra Kanada. Mi’kmaqtraditionalister organiserade genast en fredlig trumceremoni på berget och en talesman deklarerade att det planerade granitbrottet var en förolämpning mot bådeThis dissertation seeks to explore historical changes in the lifeworld of the Mi’kmaq Indians of Eastern Canada. The Mi’kmaq culture hero Kluskap here serves as a key persona in discussing issues such as traditions, changing conceptions of land, and human-environmental relations. In order not to depict Mi’kmaq culture as timeless, two important periods in its history are examined. The first study
Three microperoxidases-hemin-6(7)-gly-gly-his methyl ester (HGGH), mesohemin-6(7)-gly-gly-his methyl ester (MGGH) and deuterohemin-6(7)-gly-gly-his methyl ester (DGGH)-have been prepared as models for heme-containing peroxidases by condensation Of glycyl-glycyl-L-histidine methyl ester with the propionic side chains of hemin, mesohemin and deuterohemin, respectively. The three microperoxidases dif
In an era of lifelong learning, empowerment of the learner becomes fundamental. Therefore ex-ploitation of the full potential of learning objects depends upon creation of an appropriate infra-structure to promote symmetrical control of inquiry. The learner needs to be empowered because learning is a discovery process and thus must be under his or her own control. In early stages of education it
In the construction industry, sustainability and greening is more than just a passing trend. It has become an important agenda since the building sector has immense environmental impacts. It accounts for 42% of final energy consumption and about 35% of all greenhouse gas emissions. In order to meet these challenges, the construction industry needs to change and adopt new working procedures which t
Cationic liposome-DNA (CL-DNA) complexes, are regarded as promising materials for safe and efficient delivery of genes for therapeutical applications. In order to be used in vivo, these complexes may be coated with a hydrophilic polymer (e.g. polyethylene-glycol, PEG) that provides steric stabilization towards adhesion of proteins and removal by the immune system. In this work we study the influen
Rapid urbanization in Guangdong Province has severely impacted river systems due to limited understanding of the sustainability of river connectivity and functions. This study applies the Minimum Cumulative Resistance Model (MCRM) to quantify expansion costs of natural and social processes, with their difference defined as the River Ecological Sensitivity (RES) index. Higher RES values indicate th
Diamonds are regarded to be one of the most valuable natural resources on earth, with an average rough diamond price of $71 per carat in 2000. This gives scope for great economic success in diamond abundant countries. Some of the worlds most diamond abundant countries are found in Africa, ironically also some of the poorest. In recent years it has been brought to the world’s attention that illicit
De flesta aktiebolag i Sverige är fåmansföretag – vilket innebär att de ägs till övervägande del av en eller ett fåtal personer – och för dessa företag gäller särskilda skatterättsliga regler. Bakgrunden till denna särreglering är att det inte föreligger något sant tvåpartsförhållande mellan företaget och dess ägare, vilka utan särreglering därför skulle kunna skaffa sig omotiverade skattemässiga Most limited companies in Sweden are closely held companies – which mean that they are predominantly owned by one or a few persons – and for these companies there are special regulations applicable. The reason for having special regulations is that there does not exist a bilateral relationship between the company and the owner. Hence, without these special regulations the owner could receive unjus
Ökande marktemperaturer har rapporterats från hela Arktis. Marktemperaturen är känslig för klimatförändringar och spelar en viktig roll för biologiska och fysiska processer i jorden. I områden med permafrost (mark som är frusen minst två år i följd) kan en ökad marktemperatur leda till att permafrosten tinar, vilket kan få genomgripande konsekvenser på vegetation, hydrologi och infrastruktur. UpptIncreasing ground temperatures have been documented all around the Arctic. Ground temperatures are sensitive climate indicators and play an important role in biological and physical processes that occur in soils. Increases in ground temperatures can lead to permafrost thawing which in turn can have profound effects on vegetation, hydrology and infrastructure. Also the greenhouse gas balance can be
Problem definition: In recent years, Kalmar has received an increased number of requests and indications from the market concerning automated solutions in the industry. In the paper industry this is mainly caused by the increased costs in the customer's key processes that possibly could be reduced by fully automated solutions. However, there is currently no clear view of the market potential a
Monapostrukturen ligger i Nampula provinsen i norra Moçambique, och utgör en del av Mocambique bältet. Strukturen är ca 35-40 km i diameter och har en mycket låg topografi. Trots detta syns den väl på satellitbilder och flygfotografier. Relationer mellan samt utbredning av de enskilda bergartsleden är inte helt klarlagd och frågor såsom transportriktning, litostratigrafisk uppdelning samt tektonisThe Monapo Structure is situated in the Nampula Subprovince in northern Moçambique, and makes up a part of the Moçambique Orogenic Belt. It is a 35 x 40 km subcircular structure, with a very flat topography, and it clearly shows up on aerial photos. The regional setting of the Monapo Structure is not yet clearly settled and many questions regarding transportation directions, lithostratigraphic gro
Summary: Lake Bussjö is an 0.3 hectare large kettle hole in a hummocky morain landscape four kilometers north of Ystad. The purpose of this study is to investigate the stratigraphy and reconstruct the highest water level. Another task is to estimate the rate of farmland advance on earlier grazingland and swamps. Furthermore, to calculate the future development of the lake. To make the stratigraphy
