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Popular Abstract in Swedish Eld har fascinerat människan i alla tider. Att sitta och värma sig vid en lägereld, sjunga sånger eller bara titta på hur elden rör sig är något de flesta har upplevt. Hur många har egentligen funderat på var värmen kommer ifrån, hur den gula färgen uppstår eller vad eld egentligen består av? Några av frågorna finns det nu svar på, men fortfarande finns det mycket att uThe work presented in the thesis covers the use of laser-induced fluorescence (LIF) and photofragmentation laser-induced fluorescence (PFLIF) with short laser pulses to determine species concentrations in different combustion environments. To attain quantitative species concentrations using LIF investigations of the influence of collisional quenching on the fluorescence signal strength is of vital

The boreal forest landscape covers approximately 10% of the earth's land area and accounts for almost 30 % of the global annual terrestrial sink of carbon (C). Increased emissions due to climate-change-amplified fire frequency, size, and intensity threaten to remove elements such as C and nitrogen (N) from forest soil and vegetation at rates faster than they accumulate. This may result in large ar

The recent warming trend, and associated shifts in growing season length, challenge the principle of uniformitarianism, i.e., that current relations are persistent over time, and complicates the uncritical inferences of past climate from tree-ring data. Here we conduct a comparison between tree-ring width chronologies of Pinus sylvestris L. (Scots pine), Picea abies (L.) Karst. (Norway spruce) and

År 2011 infördes entreprenörskap i den svenska skolans läroplaner. På 1980-talet ansågs dock utbildningsorganisationen Ung Företagsamhet (UF), som fokuserar på entreprenörskapsutbildning för ungdomar, vara ideologiskt kontroversiell. Under loppet av 30 år har synen på entreprenörskap och UF:s status förändrats i grunden. Denna avhandling undersöker hur och varför entreprenörskap blev ett kunskapsoIn 2011, entrepreneurship was added to the curricula of Swedish schools at all levels. In the 1980s, however, the educational organization Junior Achievement (JA), that focuses on entrepreneurship education for young people, was considered ideologically controversial. Over the course of 30 years, the view of entrepreneurship and the status of JA has changed fundamentally. This thesis investigates

Eddy covariance measurement of species that are co-emitted with carbon dioxide (CO2), such as carbon monoxide (CO) and nitrogen oxides NO and NO2 (NOx), provides an opportunity to attribute a net flux to individual source or sink categories. We present eight months of continuous simultaneous measurements of fluxes (F) of CO2, CO, NOx, methane (CH4), and nitrous oxide (N2O) from a tall tower (112 m

Nanoplastics are emerging environmental contaminants that increasingly threaten soil ecosystems, yet their effects on microbial behavior remain poorly understood. This is mainly due to the lack of experimental tools capable of directly observing microbial dynamics in situ under realistic soil-like conditions. Here, we present a proof-of-concept system that enables real-time, high-throughput monito

Background Labels for neck pain after a motor vehicle crash (MVC) influenced recovery expectations and management preferences. Research is needed to understand why these expectations and preferences varied based on the label given. Aim To explore how people perceive different labels for neck pain after an MVC. Methods We performed a content analysis of qualitative data from a randomised controlled

Estimating and monitoring migratory bird populations involves significant challenges, even in the most well-studied and easily-counted species, and can be further complicated by long-held but unverified assumptions and by shifting distributions in changing flyway conditions. We illustrate these challenges using Bar-tailed Godwits Limosa lapponica on the East Atlantic Flyway. The subspecies L. l. l

The accurate estimation of soil carbon (C) pool and fluxes is a prerequisite to better understand the terrestrial C feedback to climate change. However, recent studies showed considerable uncertainties in soil C estimates. To provide a reliable C estimate in the grasslands of the Qinghai-Tibet Plateau (QTP), we calibrated key parameters in a process-based ecosystem model (the CENTURY model) throug

Beaches are important coastal features that provide vital ecosystem services; however, these systems are threatened by coastal erosion, sea-level rise, and coastal squeeze. Beach nourishments are a commonly applied coastal protection measure to mitigate erosion and flood risks while maintaining or enhancing recreational values. Nourishments vary in scale from mega-nourishments to small-scale nouri

The processes responsible for the formation of Earth's most conspicuous diversity pattern, the latitudinal diversity gradient (LDG), remain unexplored for many clades in the Tree of Life. Here, we present a densely sampled and dated molecular phylogeny for the most speciose clade of damselflies worldwide (Odonata: Coenagrionoidea) and investigate the role of time, macroevolutionary processes, and

Accurately simulating stomatal behavior is crucial for understanding water, carbon, and energy fluxes between land and atmosphere. Given the significant impact of plastic film mulching on water and temperature, it is essential to incorporate water and temperature modifications into stomatal conductance models under these conditions. In this study, we evaluated three commonly used stomatal conducta

BACKGROUND: Sustained intrauterine hypoxia causes some four million perinatal deaths annually worldwide. The condition is predicated by neonatal acidemia, as determined by pH in umbilical cord blood at birth. We aimed to evaluate the association between umbilical cord arterial pH and long-term outcomes up to 20 years of follow-up.STUDY DESIGN: Using a retrospective cohort design, umbilical cord ar

Background: Unplanned pregnancy is significantly associated with an increased risk of perinatal depression (antenatal and postnatal depression), emphasizing its prevalence and its potentially detrimental effects on both maternal and child health. This study aimed to investigate the association of contraception use and pregnancy intention with the risk of perinatal depression among Omani mothers. M

Glulam is almost exclusively the chosen material of timber frame structures. Of those, three-hinged (three-pin) portal frames are incomparably the most common type. Being both statically determinate and stable against horizontal forces in its own plane offer both practical (basic constructive details) and economical benefits. The design of the haunch allows for various solutions: it can be curved

Popular science Carbon cycle has great importance in all time scales for its inter-connected relation and response with climate system. Increased anthropogenic emission of CO2 is alleged to impact the climate system in the future, which will affect the feedback between carbon cycle and climate change. In this project, a climate-carbon cycle feedback analysis has been conducted by using long simula

Motivation and Objective: This study investigates how analysts generate from data using business intelligence tools. The motivation for study at the premise that organizations are finding it very challenging to gener-ate insights from a vast amount of structured, semi-structured and unstructured data. The ini-tial problem background indicate that this may be because organizations are silo driven,

Responding to an identified knowledge gap, the study aims to determine if smaller wind turbines located on top of existing urban buildings are more resource efficient (land utilization and economically) than large scale wind farms. To answer this question, using a GIS, the resource efficiency of the Roan wind farm in Northern Norway was compared to a theoretical modeled installation of small-scale

Bakgrund Fotboll är en komplex idrott som ställer höga krav på en spelarnas fysiska, tekniska och taktiska färdigheter och deras förmåga att hoppa, accelerera, inbromsa och riktningsförändra. Kraven på en enskild spelare skiljer sig till viss del beroende på spelarens position, träningsstatus och taktiska roll, men gemensamt för alla spelare är att en viss trötthet kommer att inträffa både temporä

Sammanfattning Uppsatsen behandlar det adopterade barnets rätt till kännedom om sitt ursprung. Frågan har diskuterats vid flertalet tillfällen och är nu aktuell på nytt, då den uppmärksammas i utredningen SOU 2009:61 – Modernare adoptionsregler. I utredningen föreslås en lagstadgad informationsskyldighet för adoptivföräldrar att informera barnet om dess ursprung. Denna bestämmelse skall sakna sankSummary This Graduate Thesis examines the adopted child´s right to knowledge of his or her origin. The biological parentage has been a subject of discussion throughout the history of adoption. In accordance with SOU 2009:61, the Committee has proposed a provision to be introduced requiring a person who has an adopted child, to inform the child of his or her biological origin. The provision is not