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Assessment of respiratory tract deposition of nanoparticles is a key link to understanding their health impacts. An instrument was developed to measure respiratory tract deposition of nanoparticles in a single breath. Monodisperse nanoparticles are generated, inhaled and sampled from a determined volumetric lung depth after a controlled residence time in the lung. The instrument was characterized
2,4,6-Trinitrotoluene (TNT) is the major explosive in ammunition dumped into lakes and the sea after World War II. To identify useful biomarkers of TNT-exposure for forthcoming fish monitoring studies at ammunition dumping sites, rainbow trout (Oncorhynchus mykiss) were intraperitoneal (i.p.) injected with TNT in peanut oil at doses of 0, 100, 200 or 400 mg TNT/kg body weight and sampled 72 h late
BACKGROUND: Oxidative stress and related DNA damage in human sperm may be important for fecundity and pregnancy outcome. METHODS: We studied the level of oxidative DNA damage in terms of 7-hydro-8-oxo-2'-deoxyguanosine (8-oxodG) in sperm DNA among 225 first-pregnancy planners. Over the six menstrual cycle follow-up time, after cessation of contraception, 135 pregnancies were conceived. RESULTS: Th
Catalytic metal sites in enzymes frequently have second-sphere carboxylate groups that neutralize the charge of the site and share protons with first-sphere ligands. This gives rise to an ambiguity concerning the position of this proton, which has turned out to be hard to settle with experimental, as well as theoretical, methods. We study three such proton-transfer reactions in two proteins and sh
In many cells, endocytotic membrane retrieval is accelerated by Ca2+. The effect of Ca2+ on single endocytotic vesicles and fission pore kinetics was examined by measuring capacitance and conductance changes in small membrane patches of insulin-secreting INS-1 cells. In intact cells, elevation of Ca2+ by glucose stimulation induced a 1.8-fold increase in membrane internalisation. This surprisingly
Imazalil (IMZ) is a fungicide used in the cultivation of vegetables, such as cucumbers, in green houses or post-harvest on fruit to avoid spoilage due to fungal growth. Agricultural workers can be occupationally exposed to IMZ and the general public indirectly by the diet. The purpose of this study was to develop and validate an LC-MS-MS method for the analysis of IMZ in human urine. The method us
In this study we investigated the impact of water uptake by aerosol particles in ambient atmosphere on their optical properties and their direct radiative effect (ADRE, W m(-2)) in the Arctic at Ny-Alesund, Svalbard, during 2008. To achieve this, we combined three models, a hygroscopic growth model, a Mie model and a radiative transfer model, with an extensive set of observational data. We found t
Background Despite the fact that severe itch is common in many dermatological diseases, the therapeutic arsenal against itching is limited. From neurophysiological experiments, using a new technique termed cutaneous field stimulation, it is known that acute itch can be effectively relieved by stimulation of cutaneous nociceptors. Methods We tested the effects of cutaneous field stimulation (25 mi
There is limited knowledge of knee laxity in the long term after a complete anterior cruciate ligament (ACL) tear treated without ACL reconstruction. The aim of this study was (1) to describe the clinical course of knee laxity after a complete ACL tear over 15 years, and (2) to study the association between knee laxity and meniscal injuries and the development of knee osteoarthritis (OA). We studi
The REVEALS model was developed to reconstruct quantitatively regional vegetation abundance (in a 10(4)-10(5) km(2) area) from pollen assemblages in large lakes (>= 100-500 ha). This model corrects for biases in pollen percentages caused by inter-taxonomic differences in pollen productivity and dispersal. This paper presents the first case study to validate REVEALS, using empirical data from south
In this overview the technique of accelerator mass spectrometry (AMS) and its use are described. AMS is a highly sensitive method of counting atoms. It is used to detect very low concentrations of natural isotopic abundances (typically in the range between 10(-12) and 10(-16)) of both radionuclides and stable nuclides. The main advantages of AMS compared to conventional radiometric methods are the
1. Five groups of male Sprague Dawley rats were given for 6 months a diet with high protein and fat contents but a very low dietary fibre content (group B), and this diet mixed with (g/kg) 50 low-methoxyl pectin (group L), 50 high-methoxyl pectin (group H), 50 guar gum (group G) and 200 wheat bran (group WB, corresponding to 100 wheat fibre) respectively. 2. The weight increment was significantly
Background In the early 1980s, a preservative containing a mixture of methylchloroisothiazolinone (MCI) and methylisothiazolinone (MI) in a ratio of 3:1 was introduced. This mixture (mix) has been patch tested at 100 ppm (0.01%) worldwide and at 200 ppm (0.02%) in Sweden since 1986 and also in the European baseline series since 2014. Objective A new aqueous mix of MCI 0.015% and MI 0.2% was compar
När Lunds universitet deltar i ett uppdrag eller samarbete med en extern part, berör detta givetvis de forskare, doktorander, studenter eller andra som deltar i uppdraget/samarbetet. När universitetet ingår ett avtal om uppdrag eller samarbete eller annat avtal som innehåller villkor om rätten till forskningsresultat, sekretess och publicering måste därför de enskilda deltagarna underteckna nedans
https://www.medarbetarwebben.lu.se/stod-och-verktyg/juridik/avtalsratt/villkor-deltagande-i-projekt - 2026-05-29
Vårt kursutbud För mer specifik information angående kursdatum, vänligen besök antagning.se.SamhällsgeografiGrundnivåSGEA20 Samhällsgeografi: Grundkurs (30 hp) (Höst- och vårtermin)SGEA23 Human Geography: Level 2 (Höst- och vårtermin)SGEK03 Samhällsgeografi: Kandidatkurs (30 hp) (Hösttermin)SGED11 The Contemporary Geography of African Development I (15 credits) (Hösttermin)SGED12 The Contemporary
https://www.keg.lu.se/utbildning/utbildningsutbud/fristaende-kurser - 2026-05-29
Centre for Mathemat ica l Sc iences Div i s ion of Mathematics and Numer ica l Analy s i s Course Analysis for MATB21 Analysis in Several Variables 1, Spring 2022 Course Information Lecturer: Anders Olofsson Teaching assistants: Giang To Number of students: 67 40 newly registered and 27 re-registered. 19 students answered the course evaluation. Examination Final grades: In all, 40 students, includ
https://www.maths.lu.se/fileadmin/maths/Matematik_NF/Kursutvaerderingar/VT2022/MATB21VT22.pdf - 2026-05-28
https://www.byggmek.lth.se/fileadmin/byggnadskonstruktion/publications/THID/Teknikhus_i_prefabricerad_betong.pdf - 2026-05-28
Background: Emerging evidence suggests that anterior cruciate ligament (ACL) ruptures can restore ACL fiber continuity. The relationship between ACL continuity on magnetic resonance imaging (MRI) (sign of ACL healing) and outcomes >5 years after an acute ACL rupture has not been investigated. Purpose: This study aimed to (1) describe clinical outcomes and radiographic osteoarthritis (ROA) at 11 ye
Utbildningspremier för kvinnor och män – utveckling under 2000-talet – utveckling under 2000-talet Utbildningspremier för kvinnor och män Utbildningspremier för kvinnor och män – utveckling under 2000-talet Thomas Ljunglöf, Håkan Regnér och Linda Simonsen © Saco 2023 www.saco.se http://www.saco.se/ Innehåll Innehåll 3 Sammanfattning 5 Inledning 7 Arbetskraftens utbildningsnivå 9 Data och metod 10
