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Acetaldehyde is a hazardous pollutant found in indoor and ambient air. Acetaldehyde photolysis is pressure- and wavelength-dependent with three distinct product channels. In this study, the photolysis rates of CH3CHO, CD3CDO, and CD3CHO are studied in natural tropospheric conditions using long path FTIR spectroscopy, at the European Photoreactor Facility (EUPHORE) in Valencia, Spain. The average r

In this paper, we present a fluorescence activated sorter realized in a continuous flow microfluidic chip. Sorting is achieved by deflecting a focused particle stream with short acoustic bursts (2.5 ms), in a fluorescence activated configuration. The system utilizes two-dimensional acoustic pre-focusing, using a single actuation frequency, to position all particles in the same fluid velocity regim

The cross-section average (CA) augmentation approach of Pesaran (A simple panel unit root test in presence of cross-section dependence. Journal of Applied Econometrics 2007; 22: 265–312) and Pesaran et al. (Panel unit root test in the presence of a multifactor error structure. Journal of Econometrics 2013; 175: 94–115), and the principal components-based panel analysis of non-stationarity in idios

Aim: Examine the effect of a 10 h intervention programme compared with post-mailed minimal intervention (PMMI) given to high-risk alcohol-drinking university freshmen in a random design. Method: In total 693 freshmen at the Lund Institute of Technology, Lund University, Sweden were included in the study. A cognitive behavioural alcohol program (CBAP) or PMMI was given to high-risk drinking freshme

Ultrafast time-resolved fluorescence spectroscopy has been used to investigate the excited-state dynamics of the basic eumelanin building block 5,6-dihydroxyindole-2-carboxylic acid (DHICA), its acetylated, methylated, and carboxylic ester derivatives, and two oligomers, a dimer and a trimer in the O-acetylated forms. The results show that (1) excited-state decays are faster for the trimer relativ

An HbA1c threshold of ≥42 mmol/mol has been proposed to diagnose prediabetes. The sensitivity, specificity and positive predictive value of the proposed threshold for detection of individuals with prediabetes was examined in a study of 573 randomly selected individuals from Vara and Skövde. In addition, the utility of the FINDRISC questionnaire and of a fasting glucose test in combination with thr

The use of enzymes in industrial applications has been recognised for providing clean processes with minimal impact on the environment. This thesis presents studies on engineering of enzymes and enzyme-based processes in the light of green chemistry and environmental sustainability, and focuses on three hydrolases: esterase, lipase and phytase. The use of esterase has been investigated to provide

Title: Performance measurement within Volvo Performance System - Alignment during implementation & leading or lagging position Author: Linn Sperre Supervisors: Bertil I Nilsson, supervisor at the Faculty of Engineering, Lund University & Karin Frykholm, supervisor at Volvo Penta Background & Context: The setting of this master’s thesis takes place in an ever changing environment wh

This master thesis investigates how municipalities can use action program for its safety work and how the municipality of Umeå can improve its work with such a program. Information has been gathered through literature studies and case studies involving the municipality of Umeå, four other municipalities and some of the responsible authorities for the area. Conclusions reached out is that an action

IPCC (Intergovernmental Panel on Climate Change) rapporten som offentliggjordes 2021 visar att den globala uppvärmningen och dess konsekvenser fortskrider snabbt (Masson-Delmotte, V. et al. 2021, p.4). För att mildra och anpassa städer efter konsekvenserna av klimatförändringarna spelar stadsplanering och design en avgörande roll. År 2016 stod transporterna för nästan 30 % av EU:s totala koldioxidThe IPCC (Intergovernmental Panel on Climate Change) report published in 2021 shows that global warming and its consequences progress at a rapid rate. (Masson-Delmotte, V. et al. 2021, p.4) In order to mitigate and adapt to the consequences of climate change, urban planning and design play a crucial role. In 2016, transport was responsible for almost 30% of the total CO2-emissions of the EU (Europ

We used the nationwide Swedish Family-Cancer Database with 2060 childhood brain tumours diagnosed in the period 1958-1996 to analyse the risk of this tumour by parental cancers and in siblings of childhood brain tumour probands. Groups of patients were compared by calculating standardized incidence ratios (SIRs) for brain tumours in offspring. 1.3% of brain tumour patients had a parent with nervou

In radiological diagnostics and therapy, it is important that practitioners, referrers, (i.e. radiologists, radiation oncologists and others in health-care) are aware of how much radiation a patient may receive from the various procedures used and associated health risk. The profession has a duty to inform patients or their representatives of the advantages and disadvantages of specific investigatIn radiological diagnostics and therapy, it is important that practitioners, referrers, (i.e. radiologists, radiation oncologists and others in healthcare) are aware of how much radiation a patient may receive from the various procedures used and associated health risk. The profession has a duty to inform patients or their representatives of the advantages and disadvantages of specific investigati

The first measurement of the Υ(1S) elliptic flow coefficient (v2) is performed at forward rapidity (2.5

The current study aimed to estimate the effective doses and conversion coefficients (CCs) for typical barium swallow (BS), barium meal (BM) and barium enema (BE) protocols and to evaluate the impact of different examination parameters on the resulting CCs. Data were collected in surgical and therapy departments in St. Petersburg Urban Mariinsky Hospital. Computational models were developed using P