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Background and Objectives: Photodynamic therapy using 20% 5 aminolevulinic acid (5-ALA) has recently been introduced as a new tool in optical skin rejuvenation. The primary objective of this study was to optimize incubation time, the topical delivery mechanism (vehicle) and the concentration of 5-ALA by detecting the dynamic changes of normal skin after 5-ALA application. The secondary objective w

Popular Abstract in Swedish Malignt melanom (även kallad melanom) är den farligaste formen av hudcancer. Dess incidens varierar från land till land och är den högsta i Australien, där 46.7 per 100,000 invånare drabbas årligen. I Sverige är melanom den sjätte vanligaste cancersjukdomen. Melanom har blivit allt vanligare under de senaste två decennierna. Om tumören upptäcks på ett tidigt, dvs. lokal“Cutaneous melanoma is a most unpredictable lesion” wrote Alexander Breslow in 1970. He was one of the first to predict outcome in melanoma patients, based on the thickness of the primary tumor, and today this parameter bears his name and remains the main prognostic factor in melanoma. The aim of this thesis has been to contribute to the understanding of melanoma biology in order to make this canc

The degradation of different polyethylenes-low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and high-density polyethylene (HDPE)-with and without antioxidants and at different oxygen concentrations in the polymer granulates, have been studied in extrusion coating processing. The degradation was followed by online rheometry, size exclusion chromatography, surface oxidation

PURPOSE: To investigate the incidence and causes of visual impairment in children born prematurely in Finland from 1972 through 1989, and to determine what conditions and factors were associated with its occurrence. DESIGN: Retrospective, cross-sectional study. SUBJECTS: All visually impaired individuals from 0 to 17 years of age who had been born at fewer than 37 gestational weeks in Finland from

Aim Africa is identified by the Inter-governmental Panel on Climate Change (IPCC) as the least studied continent in terms of ecosystem dynamics and climate variability. The aim of this study was (1) to adapt the Lund-Postdam-Jena-GUESS (LPJ-GUESS) ecological modelling framework to Africa by providing new parameter values for tropical plant functional types (PFT), and (2) to assess the sensitivity

Purpose: The task-based assessment of image quality using model observers is increasingly used for the assessment of different imaging modalities. However, the performance computation of model observers needs standardization as well as a well-established trust in its implementation methodology and uncertainty estimation. The purpose of this work was to determine the degree of equivalence of the ch

The paper presents research results from the Marie Skłodowska-Curie Innovative Training Network INFRASTAR in the field of reliability approaches for decision-making for wind turbines and bridges. This paper addresses the application of Bayesian decision analysis for installation of heating systems in wind turbine blades in cases where an ice detection system is already installed in order to allow

Turbulent non-premixed flames with local extinction and re-ignition exhibit multiple combustion modes including ignition waves, diffusion flames, partially premixed flames, and ignition-assisted partially premixed flames. The mechanisms of local extinction and re-ignition are not well understood and numerical modeling of multi-mode combustion is a challenging task. In this work, a specially design

Hearing is our second most important sense. The main focus of a surveillance camera is obviously the video but the audio shouldn't be neglected. It is possible to hear what the camera can't see and what is said in a conversation can't be showed in a video. Therefore there are good reasons to always try and achieve the best audio possible. This is not an easy task since cameras are oper

This thesis investigates the word order in the main and embedded clauses of four Swedish monolingual children, covering the age range 1;3–4;0. Using a generative framework, a quantitative and qualitative analysis focusing on the syntax of verb placement and complementizers is presented. Chapters 1 to 4 offer a background to the thesis. In chapter 1 the aims and the material are presented. Chapter

This study aimed to test and validate a dual-time-window (DTW) protocol for 6-(fluoro-18F)-3-(1H-pyrrolo[2,3-c]pyridin-1-yl)isoquinolin-5-amine ([18F]MK6240) dynamic PET imaging in experimental datasets acquired in human subjects. Methods: DTW protocols were tested and validated in datasets previously collected in 25 participants: 13 were cognitively normal, 10 had mild cognitive impairment, and 2

In this paper, the critical factors behind commercialization of new product development (NPD) are investigated in order to add to our understanding of what drives and hampers the commercialization of new products and services. With the illustration of nine cases of commercialization from three multinational organizations, an initial framework of three categories of factors related to the success o

1 Postadress: Humanekologiska avdelningen, Sölvegatan 12, 223 62 Lund Besöksadress och undervisning: Geocentrum I, Sölvegatan 10, Lund HEKA12:1 Naturuppfattningar i tid och rum, 7,5 högskolepoäng Kursinformation – vårterminen 2018 Version 2017–12–06 2 Kurslitteratur OBS! För instruktioner om hur man använder e-böcker, se ”Elektronisk litteratur” nedan! Böcker (bokhandel/bibl

https://www.keg.lu.se/sites/keg.lu.se/files/heka12_1_schema_vt_2018.pdf - 2026-05-25

1 Postadress: Humanekologiska avdelningen, Sölvegatan 12, 223 62 Lund Besöksadress och undervisning: Geocentrum I, Sölvegatan 10, Lund HEKA12:1 Naturuppfattningar i tid och rum, 7,5 högskolepoäng Kursinformation – vårterminen 2017 Version 2016–11–17 2 Kurslitteratur OBS! För instruktioner om hur man använder e-böcker, se ”Elektronisk litteratur” nedan! Böcker (bokhandel/bibl

https://www.keg.lu.se/sites/keg.lu.se/files/heka12_1_schema_vt_2017.pdf - 2026-05-25

We counted butterflies in almost all open grasslands in an area of 8000 hectare over five years (2001-2005) in the central part of the parish of Stenbrohult, southern Sweden (Fig. 1; 56 degrees 37' N, 14 degrees 11' O). This area is currently dominated by forests. Grasslands, mainly grazed by cattle and horses, only cover about 6 % of the area. The study area consisted of 18 farms, most ot them ar

Previous studies on lymphocytes have suggested that patients with head and neck squamous cell carcinoma (HNSCC) have an increased susceptibility for chromosomal damage induced by bleomycin, a known radiomimetic mutagen. However, it has so far not been possible to study whether this genetic instability is present also in the epithelial component of the upper aerodigestive tract mucosa, the tissue f

Popular Abstract in Swedish Studie av Två-Fotons processer vid låg Q² med hjälp av VSAT kalorimetern i DELPHI experimentet Den här studien är baserad på data som har insamlats med hjälp av LEP (Large Electron-Positron) acceleratorn under dess andra tidsperioden LEP II (1996-2000) då strålenergin uppgick till 103-104 GeV. Under den perioden insamlades vid DELPHI (DEtector with Lepton, PThe study is based on data collected at the LEP II accelerator during the second period of the Large Electron-Positron collider operations (1996-2000). During that time the DELPHI (DEtector with Lepton, Photon and Hadron Identification) experiment collected about 90 Gb of data on tape corresponding to 687-691 pb^-1 of luminosity. The data obtained by the VSAT (Very Small Angle Tagger) e

This thesis is based on results concerning the formation of semiconductor self-assembled quantum dots. The quantum dots have been grown by metal organic vapour phase epitaxy in the Stranski-Krastanow growth mode. This growth mode is based on a strain-induced transition from two-dimensional layer-by-layer growth towards three-dimensional island growth. The resulting morphology consists of coherent,