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Intense continua of electromagnetic radiation of very brief duration are formed in the interaction of focused ultra-short terawatt laser pulses with matter. Two different kinds of experiments, which have been performed utilizing the Lund 10 Hz titanium-doped sapphire terawatt laser system are being described, where visible radiation and X-rays, respectively, have been generated. Focusing into wate
The phosphoinositide 3-kinases (PI3Ks) are a family of lipid kinases central to regulating a wide range of important intracellular processes. Despite the vast knowledge around class I PI3Ks, the class II PI3Ks have been neglected, seemingly only due to the chronology of their discovery. Here we focus on the cellular functions of the three class II PI3K isoforms, PI3KC2α, PI3KC2β, and PI3KC2γ, in d
Fifteen premenopausal women were investigated in the follicular phase of the menstrual cycle with two TRH tests within an interval of 48 to 96 h. Ninety min before each TRH test either 10 mg metoclopramide or saline was injected iv in randomized order. The same procedure was repeated in the following menstrual cycle after pretreatment with T4 (0.5 mg daily for 6-14 days). At least 2 months later t
In nine hyperthyroid women studied in the follicular phase of the menstrual cycle basal plasma LH concentrations and LH and FSH responses to GnRH were increased compared to those in nine normal women. The increased gonadotropin levels could not be related to changes in body weight or plasma estradiol or serum sex hormone-binding globulin levels, and they approached normal levels during or after tr
We report on a quantum dots-in-a-well infrared photodetector (DWELL QDIP) grown by metal organic vapor phase epitaxy. The DWELL QDIP consisted of ten stacked InAs/In0.15Ga0.85As/GaAs QD layers embedded between n-doped contact layers. The density of the QDs was about 9 x 1010 cm-2 per QD layer. The energy level structure of the DWELL was revealed by optical measurements of interband transitions, an
Globalt Dynamiskt Engagemang Asien 2024 1GDE ASIEN 2024 GDE Asien GLOBALT DYNAMISKT ENGAGEMANG | 2024 2GDE ASIEN 2024 GDE Asien Globalt engagemang är en självklar och nödvändig del i Lunds univer- sitets arbete för att kunna fortsätta utvecklas som ett internationellt ledande universitet som värnar demokrati, mänskliga rättigheter och akademisk frihet. Globalt dynamiskt engagemang (GDE) stärker oc
https://www.medarbetarwebben.lu.se/sites/medarbetarwebben.lu.se/files/2024-01/Ver%201_GDE%20Asien%202024.pdf - 2026-08-21
Landskapet påverkar den biologiska mångfalden För att bevara biologisk mångfald och gynna produktionen av ekosystemtjänster krävs ett landskapsperspektiv då många ekologiska processer sker på skalor som är större än enskilda fält och gårdar. Genom att förstå hur landskapets utseende och sammansättning påverkar olika ekologiska processer synliggörs värdet av en gemensam förvaltning av ekosystemtjän
https://www.cec.lu.se/sv/sites/cec.lu.se.sv/files/landskap.pdf - 2026-08-21
Bakgrund Vård och omsorgsinsatser till äldre görs till en omfattande del av närstående. Trots att andelen över 80 års ålder ökar i samhället har andel som bor i särskilda boenden minskat från år 2000, vilket också påverkar närstående. Begreppet anhörig börda utgår ifrån de effekter såväl fysiska, psykologiska, emotionella, sociala eller ekonomiska som uppstår som en följd av en näståendens vård oc
https://www.geriatrik.lu.se/instrument/anhorigskalan - 2026-08-21
IntroductionQuantitative MR means turning an MR scanner (the happy snappy camera of the radiologists) into am instrument for quantitative measurements (for the curious MR physicists) to determine volumes, concentrations of metabolites and contrast agents and the biophysical properties of tissue. The latter are presented as “parameter” maps, which are calculated from primary MR images. Quantitative
Background MRI at low field strength has re-emerged as a hot research topic in the last few years largely due to advantages including: reduced costs, lower power and infrastructure requirements, and potential for making the scanner portable. Our group in Lund is part of a multi-national research consortium called UNITY (Ultra-low field NeuroImaging in The Young), financed by the Bill and Melinda G
https://www.msf.lu.se/research/mr-physics-group/research-environments/low-field-mri - 2026-08-21
