Sökresultat

Popular Abstract in Swedish Förbränningsmotor är i dagens värld den mest använda kraftkällan för fordon. Förbränningsmotorn har kontinuerligt utvecklats och förbättrats sedan Nicolaus August Ottos och Rudolf Diesels dagar, och kommer att fortsätta att utvecklas långt in i framtiden. Ingen konkurrerande teknik har ännu på allvar utmanat förbränningsmotorns ställning. Det finns en lång rad tänkbara The prime mover in the world today is the Internal Combustion (IC) engine. The development and improvement of the internal combustion engines since Nicolaus August Otto and Rudolf Diesel has continued until today and will continue long into the future. No major competitor to the IC engine has yet emerged. There is a long list of potential competitors but they still have to prove their superiority

Signal processing can be used to condition medical signals to facilitate their interpretation, and to extract clinically important information. The purpose of the present doctoral thesis is to put forward solutions to certain problems encountered in the processing of electrocardiac signals. Paper I examines the properties of a maximum likelihood method for aligning vectorcardiographic loops, with

Engineered bamboo has recently received lots of attention of civil engineers and professional researchers due to its better mechanical performance than that of softwood timber. Parallel strand bamboo is one important part of engineered bamboo for its excellent durable performance compared to the laminated veneer bamboo. The required curing temperature in hot-pressing process is usually higher than

Context. After more than 50 years, astronomical research still struggles to reconstruct the history of lithium enrichment in the Galaxy and to establish the relative importance of the various 7Li sources in enriching the interstellar medium (ISM) with this fragile element. Aims. To better trace the evolution of lithium in the Milky Way discs, we exploit the unique characteristics of a sample of op

This article deploys narrative method to explore how young adults in China enrolled in higher education negotiate future intergenerational obligations. The study finds that the process through which filial piety is being renegotiated is complex and sometimes contradictory, and norms and values do not always align with practices, as intergenerational obligations need to be managed in tandem with ob

Preterm birth carries a risk for adverse neurodevelopment. Cognitive dysfunctions, such as language disorders may manifest as atypical sound discrimination already in early infancy. As infant-directed singing has been shown to enhance language acquisition in infants, we examined whether parental singing during skin-to-skin care (kangaroo care) improves speech sound discrimination in preterm infant

Detta är den trettonde årsrapporten från Svensk Dagfjärilsövervakning, ett nationellt miljö-övervakningsprogram som koordineras av Lunds universitet på uppdrag av Naturvårdsverket sedan 2010. Svensk Dagfjärilsövervakning är ett samarbete mellan Sveriges Entomologiska Förening, Naturvårdsverket, Lunds universitet, Sveriges lantbruksuniversitet och Länsstyrelserna. Verksamheten möjliggörs av frivill

Increasing climatic and human pressures are changing the world's water resources and hydrological processes at unprecedented rates. Understanding these changes requires comprehensive monitoring of water resources. Hydrogeodesy, the science that measures the Earth's solid and aquatic surfaces, gravity field, and their changes over time, delivers a range of novel monitoring tools that are complement

Context. Stars presently identified in the bulge spheroid are probably very old, and their abundances can be interpreted as due to the fast chemical enrichment of the early Galactic bulge. The abundances of the iron-peak elements are important tracers of nucleosynthesis processes, in particular oxygen burning, silicon burning, the weak s-process, and α-rich freeze-out. Aims. The aim of this work i

AIMS/HYPOTHESIS: The aim of this work was to explore associations between type 1 diabetes progression from stages 1 or 2 to stage 3 and interacting ligand-receptor complexes of HLA class I (HLA-I) and KIR gene products.METHODS: Applying next-generation sequencing technology to genotype HLA-I genes (HLA-A, -B, -C) and KIR genes (KIR2DL1, KIR2DL2, KIR2DL3, KIR2DL4, KIR2DL5, KIR2DS1, KIR2DS2, KIR2DS3

This chapter provides an introduction to task engagement as a framework for better understanding how individuals participate in and learn from second language activities in their leisure time. Although the concept is relatively new to second language acquisition research, engagement has been extensively studied in educational science, as a way of operationalising different aspects of students’ par

The creation of prototypes for the design of new products is a fundamental activity in the metal-mechanic sector that contributes to Bolivia's socioeconomic development. The existence of a multitude of factors that positively or negatively affect the prototype, are encompassed in two approaches: i) prototyping engineering and ii) prototyping management. Research for the design of prototypes suitab

Research on floral volatiles has grown substantially in the last 20 years, which has generated insights into their diversity and prevalence. These studies have paved the way for new research that explores the evolutionary origins and ecological consequences of different types of variation in floral scent, including community-level, functional, and environmentally induced variation. However, to add

Background. The urokinase plasminogen activator (uPA) system is involved in tissue remodelling processes and is up-regulated in many types of malignancies. We investigated whether serum levels of different forms of soluble uPA receptor (suPAR) are associated with survival and in particular with prostate cancer and cardiovascular disease mortality. Methods. Using time-resolved fluorescence immunoas

AbstractHuman papillomaviruses (HPVs) are small non enveloped viruses that contain a double-stranded circular DNA genome of approximately 8kb in size. It has been estimated that approximately 5% of all cancers are caused by HPV infection. Cervical cancer represents the majority of HPV-associated anogenital cancers worldwide. HPV type16 (HPV16) accounts for 65% of cervical cancer and approximately

Detta är den tionde årsrapporten från Svensk Dagfjärilsövervakning, ett nationellt miljöövervakningsprogram som koordineras av Lunds universitet på uppdrag av Naturvårdsverket sedan 2010. Svensk Dagfjärilsövervakning är ett samarbete mellan Sveriges Entomologiska Förening, Naturvårdsverket, Lunds universitet, Sveriges lantbruksuniversitet och Länsstyrelserna. Verksamheten möjliggörs av frivilliga

Detta är den elfte årsrapporten från Svensk Dagfjärilsövervakning, ett nationellt miljöövervakningsprogram som koordineras av Lunds universitet på uppdrag av Naturvårdsverket sedan 2010. Svensk Dagfjärilsövervakning är ett samarbete mellan Sveriges Entomologiska Förening, Naturvårdsverket, Lunds universitet, Sveriges lantbruksuniversitet och Länsstyrelserna. Verksamheten möjliggörs av frivilliga l

The purpose of this project was to create a risk model for extended time between major overhauls on steam turbines. The project was created by Siemens Industrial Turbomachinery who develops and manufactures steam turbines and performs maintenance. It is the turbine users who have requested a longer time in order to reduce maintenance costs and increase availability. Prior to the work, external and