Sökresultat

We have prepared GaAs wurtzite (WZ)-zinc blende (ZB) nanowire heterostructures by Au particle-assisted metal-organic vapor phase epitaxy (MOVPE) growth. Superior crystal quality of both the transition region between WZ and ZB and of the individual segments themselves was found for WZ-ZB single heterostructures. Pure crystal phases were achieved and the ZB segments were found to be free of any stac

In recent years, there is a growing interest for new lead-free oxides with reversible antiferroelectric (AFE)-ferroelectric (FE) phase transition for high-power energy-storage applications. NaNbO3-based ceramics are particularly attractive due to their easy synthesis and cost-effectiveness. In order to stabilize reversible AFE-FE phase transition, NaNbO3 is doped with a combination of heterovalent

Optical properties of human whole blood were measured in vitro, at 633 nm with a double integrating sphere set-up, The blood was kept at constant flow through a flow cell while slowly heating the blood from approximately 25 degrees C to 55 degrees C in a heat exchanger, The results show a small but distinct decrease in the g-factor of 1.7 +/- 0.6\% and a similar increase in the scattering coeffici

Several investigations have revealed surprisingly high activities during the winter in vegetation and soil in temperate and subarctic areas. Plants have been found to photosynthesize even under snow cover and at temperatures below freezing, and decomposer microorganisms can function, at low rates, all year around. In temperate grasslands, the vegetation includes winter annual herbs as well as bryo

Climate change and thawing of permafrost will likely result in increased decomposition of terrestrial organic carbon and subsequent carbon emissions to the atmosphere from terrestrial and aquatic systems. The quantitative importance of mineralization of terrestrial organic carbon in lakes in relation to terrestrial carbon fluxes is poorly understood and a serious drawback for the understanding of

Flaxseed has recently gained attention as a functional food, and the effect of adding flaxseed (10%, 15%, and 20%) to tortillas was evaluated. The physicochemical characteristics and the free fatty-acid (FFA) content of the oil extracted from flaxseed-added corn tortilla were determined. The results showed that the lipid (4.27%) and protein content (9.10%) of the control sample was statistically l

A previously proposed finite element model that considers geometric and material nonlinearities and the free boundary problems that occur at the catheter tip and in the annular zone around the lateral surface of the catheter was revised and was used to fit a power-law formula to predict backflow length during infusions into brain tissue. Compared to a closed-form solution based on linear elasticit

Thyroid hormones transiently increase during parr-smolt transformation in coho salmon, Oncorhynchus kisutch, and are believed to trigger morphological, physiological, behavioural, and neural changes. The effectiveness of propylthiouracil (PTU) to induce hypothyroidism in smolting coho salmon was determined by immersing coho salmon, Oncorhynchus kisutch, in 30 mg 1-1 PTU from May 1, two weeks prior

Both carbon dioxide uptake and albedo of the land surface affect global climate. However, climate change mitigation by increasing carbon uptake can cause a warming trade-off by decreasing albedo, with most research focusing on afforestation and its interaction with snow. Here, we present carbon uptake and albedo observations from 176 globally distributed flux stations. We demonstrate a gradual dec

A preparation of living Arthrobacter simplex cells immobilized in polyacrylamide gel, which showed steroid-Δ1-dehydrogenase activity, was studied. The entrapped microorganisms catalyzed the transformation of cortisol to prednisolone and this reaction was followed spectrophotometrically or with the aid of thin layer chromatography (TLC) and high pressure liquid chromatography (HPLC). About 40% of t

Enligt Trafikverkets siffror ökade utsläppen av växthusgaser från transportsektorn med 0,5 % under 2018 samtidigt som de måste minska med 8 för att nå de uppsatta målen. Ökningen berodde främst på en ökad lastbilstrafik. Det krävs flera lösningar för att nå detta mål. Detta arbete har undersökt om batterielektriska lastbilar kan vara en god lösning för emissionsfria transporter redan idag inom visAccording to the Swedish transport administration the emissions from the transport sector has increased by 0,5 % in 2018 compared to 2017, which is mainly due to an increase in truck traffic. To reach the goals set for the transport sector the emissions must be reduced by 8 % annually. Several solutions are needed to reach this goal. This work has investigated if battery electric trucks can be a g

It is known that consumption of high fat diet may lead to gut dysbiosis and increase intestinal permeability by altering gut microbiota composition. However, metabolites from dietary fiber fermentation, short chain fatty acids (SCFAs) may prevent these changes. SCFAs are of great importance in maintaining colonic integrity, and exerting anti-inflammatory function as signaling molecules. The presen

Summary of results from surey and focus groups Page 1 of 13 HR Excellence in Research Award Section HR Lena Lindell, HR Specialist PM Date 2025-12-15 Summary of the results from the survey and focus groups on the European Charter for Researchers in relation to Lund University Table of contents (remove if not needed) Background .......................................................................

https://www.lunduniversity.lu.se/sites/www.lunduniversity.lu.se/files/2026-01/Summary%20of%20results%20from%20survey%20and%20focus%20groups%20(002).pdf - 2026-05-07

2025 Innovations from Lund University that reached market and other highlights in 2025 2025 Innovations from Lund University that reached market and other highlights in 2025 “Our end-game is enabling research to create global impact — in practise. Building spin-outs and attracting capital is our way of getting there. This brochure features 10 headlines from 2025, showcasing spin-outs on that path.

https://www.innovation.lu.se/sites/innovation.lu.se/files/2026-03/401281-Supplement-LUVentures-2025.pdf - 2026-05-07

Anxiety can be characterised and expressed in various ways. It could be exam anxiety, speech anxiety, social anxiety, or panic attacks. It might feel awful, but it is not dangerous. You can find information here about common symptoms and what you can do to manage your worry and anxiety. Shortcuts to page content:AnxietySelf-care tips to relieve your anxietyThe Student Health Centre’s activitiesWhe

https://www.lunduniversity.lu.se/current-students/healthcare/student-health-centre/worry-and-anxiety - 2026-05-05

Course Evaluation for FYSA12 Course Analysis for FYSA12, VT 2021 Course responsible: Elizabeth Blackburn Authors of this document: Elizabeth Blackburn (EB) and Christian Brackmann (CB) Number of students registered: 58 (of which 37 are new students) Number of replies to survey: 11 Course representatives: Umashi Fernando, Sherwan Jamo Abdi This report was discussed with the course representatives o

https://www.fysik.lu.se/en/sites/fysik.lu.se.en/files/2021-06/Course%20Analysis%20for%20FYSA12_2.pdf - 2026-05-07

The evoked release of purines from rabbit retinae preloaded with [(3)H]adenosine was studied in vitro. Potassium (8.6-43.6 mM) and ouabain (1 or 10 microM) increased the release of radioactivity in a concentration-dependent manner. The K(+)-evoked release was significantly reduced when the superfusion was carried out at 2-4 degrees C. The effect of K(+) (8.6, 13.6 and 23.6 mM) and of ouabain (1 mi

Type 2 diabetes (T2D) is a serious condition of growing proportions. Developing via an increasing imbalance between insulin sensitivity in the peripheral tissues and insulin release from pancreatic beta-cells, it ultimately renders the individual incapable of regulating the blood glucose concentration, e.g. after a meal. The increased prevalence of T2D is associated with an increase in the prevale

Ca2+ sensitization of smooth muscle contraction involves the small GTPase RhoA, inhibition of myosin light chain phosphatase (MLCP) and enhanced myosin regulatory light chain (LC20) phosphorylation. A potential effector of RhoA is Rho-associated kinase (ROK). The role of ROK in Ca2+ sensitization was investigated in guinea-pig ileum. Contraction of permeabilized muscle strips induced by GTPgammaS