Sökresultat

This protocol describes a model of cerebral ischemia based on organotypic hippocampal slice cultures and quantitative assessment of cell death by use of propidium iodide and image analysis. The cultures were made from rat hippocampal slices that were obtained at postnatal day 4-7 and allowed to develop for > 14 days in vitro. For induction of 'in vitro ischemia', the cultures were washed in glucos

BACKGROUND. Androgens have been implicated in prostate tumorigenesis, but prospective studies have overall reported no association between circulating levels of androgens and risk of prostate cancer. However, some recent studies have shown that a high level of testosterone increase the risk of non-aggressive tumors but is associated with a decreased risk of aggressive tumors. METHODS. We prospecti

Exposure of cells to adverse environmental conditions invokes a genetically programmed series of events resulting in the induction of specific genes. The fluoroquinolone antibiotic ciprofloxacin has recently been reported to upregulate interleukin-2 (IL-2) gene induction. In the present investigation, the effect of ciprofloxacin at supratherapeutic concentrations on immediate-early (<2 h) gene exp

Warm dense matter is at the boundary between a plasma and a condensed phase and plays a role in astrophysics, planetary science and inertial confinement fusion research. However, its electronic structure and ionic structure upon irradiation with strong laser pulses remain poorly understood. Here, we use an intense and ultrafast X-ray free-electron laser pulse to simultaneously create and character

High-performance polymer donors when paired with nonfullerene acceptors are mainly limited to flanking halogenated benzodithiophene (BDT)-based π-conjugated copolymers, which however involve complex synthetic procedures. Herein, a series of halogen-free polymer donors that link BDT moiety with two highly electron-deficient benzodithiophene-dione (BDD) and diketopyrrolopyrrole (DPP) units with vari

Blood parasites (Haemosporidia) are thought to impair the flight performance of infected animals, and therefore, infected birds are expected to differ from their non-infected counterparts in migratory capacity. Since haemosporidians invade host erythrocytes, it is commonly assumed that infected individuals will have compromised aerobic capacity, but this has not been examined in free-living birds.

Photochemical charge separation is key to biological solar energy conversion. Although many features of this highly quantum-efficient process have been described, others remain poorly understood. Herein, ultrafast fluorescence barospectroscopy is used for the first time to obtain insights into the mechanism of primary charge separation in a YM210W mutant bacterial reaction center under novel surro

Metal halide perovskites and related materials have sparked intense debate in the field of optoelectronic applications, including solar cells, light-emitting diodes, and lasers. Despite significant progress in improving device efficiency and stability, understanding the structure-property relationships remains largely elusive. This thesis presents an in-depth investigation of the structural dynami

This work presents the design for a temperature drift-free path imbalanced ber interferometer for long-term laser frequency stabilization using coated bers with different thermal drift. For this purpose, single acrylate, dual acrylate, copper and aluminum coated bers are analyzed theoretically and experimentally regarding the thermal sensitivity of their optical path length. Experimental results w

This thesis contributes to the growing body of literature which examines the utilization of Free Trade Agreements (FTAs). The Sino-Swiss Free Trade Agreement (SSFTA) was not only China’s first FTA with a continental European country, but also a milestone for the Swiss foreign policy. However, the Swiss government needs to demonstrate that the SSFTA works in practice and delivers the negotiated ben

Regeringen ämnar införa synsättet ekonomisk arbetsgivare i Sverige från och med den 1 januari 2021. Förändringen innebär att personer som tidigare kunde åberopa skattefrihet i Sverige till följd av den så kallade 183- dagarsregeln nu i vissa fall blir skattskyldiga i Sverige. Detta gäller arbetstagare som är anställda utomlands men som arbetar i Sverige och anses uthyrda till Sverige. En sådan uthThe Swedish government has proposed introducing the concept of economic employer in Swedish tax law. The changes are proposed to take effect on 1 January 2021 and entail that some individuals, whose income was previously tax exempt due to the so called 183-day rule, now will be subject to Swedish income tax. This applies to situations of hiring-out of labour. A hiring-out of labour situation occur

När geologer vill ta reda på hur marken är uppbyggd och vilka bergarter som finns kan det vara läge att borra ett hål. Men för stora geologiska undersökningar, där man vill kolla på stora markytor eftersom det ska grävas en tunnel eller byggas en väg, är det viktigt att kunna ta reda på hur marken ser ut överallt. Då är det smidigare att modellera markens egenskaper. Ett sätt att se igenom marken Denoising and drift removal are important for improving the usability of the DCIP (Direct current resistivity and time-domain induced polarisation) method. This is useful because the need for detailed subsurface analysis increases with city construction and environmental projects. One issue with conducting DCIP measurements in urban areas is low-frequency drift from DC power (trains, trams, and po

320798 - Johanna V Berggren LUND UNIVERSITY PO Box 117 221 00 Lund +46 46-222 00 00 Perfusion Monitoring in Oculoplastic Reconstructive Surgery Berggren, Johanna 2022 Document Version: Publisher's PDF, also known as Version of record Link to publication Citation for published version (APA): Berggren, J. (2022). Perfusion Monitoring in Oculoplastic Reconstructive Surgery. Lund University, Faculty o

https://www.photoacoustics.lu.se/sites/photoacoustics.lu.se/files/2022-04/Perfusion%20Monitoring%20in%20Oculoplastic%20Reconstructive%20Surgery.pdf - 2026-05-06

Sustainable energy storage and conversion explores innovative methods to efficiently store and transform energy from various renewable sources. It focuses on technologies like advanced batteries, hydrogen production, fuel cells, and thermochemical systems as well as safety aspects of battery storage systems. Research aims to enhance energy density, reduce costs, and improve scalability, enabling r

https://www.energy.lth.se/research/energy-storage-conversion - 2026-05-05

Social and behavioural science research contributes to a better understanding of society and sometimes also results in social innovations - that is, new ways of solving different problems in society. Social innovations can be methods, approaches, services or processes that help address social needs and problems. Examples of social innovationsCarbon RuinsCarbon Ruins is an exhibition that aim to tr

https://www.sam.lu.se/en/external-engagement/innovations - 2026-05-05

On this page we present AI oriented commissioned education provided by Lund University, either on a regular basis or on demand. Lund University Commissioned Education (LUCE) offers you courses to further develop your co-workers and  increase your competitive advantage on the market. Lund university is one of the top universities in the world together with its highly qualified researchers, and with

https://www.ai.lu.se/education/for-professionals - 2026-05-05

How do I recognize osteoarthritis? How is osteoarthritis treated? Do I need surgery? It’s completely normal that several questions come to mind when talking or thinking about the most common joint disease. Below we answer some of the most frequently asked questions on OA. What are the early signs of osteoarthritis?What should I do if I suspect osteoarthritis?What is the cure for osteoarthritis?Why

https://www.arthritisportal.lu.se/about-osteoarthritis/osteoarthritis-faq - 2026-05-05

Background: Thrombolysis is a common method in the treatment of lower extremity bypass graft occlusion. The purpose of this study was to investigate the results of thrombolytic therapy in the management of acute bypass graft occlusion and to identify risk factors for technical failure and amputation. Methods: All patients at two tertiary referral centers undergoing thrombolysis for acute graft occ