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This paper presents technical developments for the detection of formaldehyde (CH2O) using laser-induced fluorescence. The easily accessible third harmonic of the Nd:YAG laser at 355 nm was used for excitation of formaldehyde. In order to investigate potential background fluorescence, e.g., from large molecules such as polyaromatic hydrocarbons, special attention was paid to investigating the possi

Mobility is essential to our modern world to move people and goods. However, mobility has also its downside as transport sectors are substantial emitters of greenhouse gases and air pollutants. Increasingly energy efficient combustion engines and turbines, as well as electrification and carbon-neutral fuels, will reduce the climate impacts of transportation. When such technologies are combined wit

Efficient and clean production of electrical and mechanical energy for use in industry, transportation and propulsion is currently a concern. The transition from fossil fuels to biofuels involves challenges related to the fuel composition and combustion, as well as methods to increase engine fuel flexibility. One potentially useful tool under development is Plasma Assisted Combustion (PAC), where

BackgroundThe risk of developing Alzheimer’s disease (AD) is modulated by genetic and environmental factors. Early-life stress (ELS) exposure during critical periods of brain development can impact later brain function and health, including increasing the risk of developing AD. Microglial dysfunction and neuroinflammation have been implicated as playing a role in AD pathology and may be modulated

In this work we present a setup for laser-induced breakdown spectroscopy (LIBS) employing a polarization filtering approach and use it for gas diagnostics. A one parts-per-million (ppm) detection sensitivity is achieved for hydrogen atoms.

Disasters and climate change impacts, as well as increased water demand, pose serious risks to the provision of sustainable urban water services, e.g., drinking water, sanitation, and safe drainage, especially in cities. These challenges call for a transition toward improved water management, including considerations of “resilience.” However, because the resilience concept has multidisciplinary or

We present the use of a high capacity and high throughput acoustic trapping platform for phenotypic characterization and functional studies of extracellular vesicles (EVs) from pathogen activated platelets. Platelet rich plasma was stimulated with bacterial M1 protein isolated from S. Pyogenes, which is known to activate platelets. The subsequently released platelet EVs were isolated from 400 μL p

Abstract The ozone (O3) decomposition in the pre-heat zone of flames can initiate and accelerate the chain-branching reactions. In the present study, formaldehyde (CH2O) was investigated by both experiment and simulation methods in methane/air laminar premixed flames under atmospheric conditions. The formaldehyde concentration profiles in the flames were measured with CH2O-PLIF. When 4500 ppm of o

With a worldwide increase in disasters, the effects of climate change are already being felt, and it is the urban poor in developing countries who are most at risk. There is an urgent need to better understand the factors that determine people's capacity to cope with and adapt to adverse climate conditions. This paper examines the influence of formal education in determining the adaptive capacity

The ruptured anterior cruciate ligament (ACL) leads to immediate symptoms that severely affect the individual and receives great attention among the scientific community, yet there is still no consensus on the optional form of treatment. An ACL injury is also a well known high risk factor for the development of knee osteoarthritis (OA) some decades later. Knee OA development after an ACL injury is

There have been extensive discussions in academic circles of why some countries develop into welfare states while others do not. Two main factors mentioned in these discussions are economic growth and the need for political stability. In these discussions, the example of Sweden, where the welfare state allegedly emerged from a ‘culture of consensus’, has often been treated as an historic exception

People’s accumulated local capacity is increasingly recognized to be critical in enhancing disaster resilience and transformation. Nevertheless, citizens’ coping strategies are little known or documented, and hardly considered in city authorities’ and aid organizations’ work. Against this background, this study provides an overview and systematization of citizens’ strategies to cope with increasin

The aim of this paper is to present a model for creating a more coherent concept, designed to meet the demands of the multidisciplinary field of Sociology of Law. This model is built on an ontological analysis that can incorporate different perspectives. The suggested analysis is mainly founded on the Aristotelian concepts of ‘essence’ and ‘accident.’ Thus, the method is concerned with distinguish

Phosphor thermometry, a remote temperature sensing technique, is widely implemented to measure the temperature of different combustion engines components. The presence of engine lubricant can influence the behavior of the applied sensor materials, known as thermographic phosphors, and thus leading to erroneous temperature measurements. The effect of two engine lubricants on decay times originating

The sulfation of gas-phase KOH and KCl was investigated in both oxidizing and reducing atmospheres at temperatures of 1120 K, 1260 K, 1390 K, and 1550 K. Well-defined gas environments were generated in a laminar flame burner fuelled with CH4/air/O2/N2. Atomized K2CO3 and KCl water solution fog and SO2 were introduced into the hot gas as sources of potassium, chlorine, and sulfur, respectively. The

Bakgrund: De senaste åren har det rapporteras om en sjunkande amningstrend i Sverige. Syfte: Studiens syfte var att i sen graviditet undersöka vilken amningsförberedelse förstföderskor erhållit, om de upplevde förberedelsen som värdefull, vilken inställning de hade till amning samt i vilken grad de kände sig trygga inför amningsstarten. Metod: En kvantitativ tvärsnittsstudie där förstföderskor, i

This report is part of the course VBR054 Fire Safety Evaluation at the Department of Fire Safety Engineering at Lund University. The report is an evaluation of the fire safety regarding evacuation at Idrottens hus in Helsingborg. Idrottens hus is a multi-purpose arena which hosts concerts and various sports events. A number of likely fire scenarios are identified and three of the scenarios are cho

Syfte: Syftet med studien var att undersöka förekomsten av pares på n. laryngeus superior hos patienter som genomgått en thyroidektomi. Studien syftade även till att undersöka om en dylik pares kan upptäckas vid flera olika pre- och postoperativa undersökningsmetoder samt hur patienterna upplever sin röst före och efter operation. Metod: I studien ingick 20 deltagare. Samtliga deltagare genomförde