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Popular Abstract in Swedish Bakgrund. Det enteriska nervsystemet (ENS) — mag-tarmkanalens eget nervsystem betraktades tidigare i stor utsträckning enbart som en passiv omkopplingscentral inom det parasympatiska nervsystemet. Forskningsresultat från det senaste decenniet har emellertid gett oss ett helt nytt synsätt. ENS ― ibland refererat till som ‘The second brain’ ― uppvisar trots tillhörighet t
2024-06-24 project The motions of nearby stars and the local mass density Alexander Mustill (alexander.mustill@fysik.lu.se) Senior Research Fellow Lund University ESA/ATG medialab NASA/JPL-Caltech/R. Hurt (SSC/Caltech) mailto:alex@astro.lu.se Motions of nearby stars • The dominant bulk motion of stars in the Galaxy is their rotation around the Galactic centre on circular orbits • Stars also have a
https://www.astro.lu.se/sites/astro.lu.se/files/2024-06/2024-06-24%20project_0.pdf - 2026-09-11
Professor Kontaktinformation E-post: ronnie [dot] wirestam [at] med [dot] lu [dot] se Telefon: +46 46 17 71 59Organisation Medicinsk strålningsfysik, Lund Besöksadress: Kampradhuset, Barngatan 2B, Universitetssjukhuset, Lund Hämtställe: 32 WebbplatsRonnie Wirestams profil i Lunds universitets forskningsportalAndra roller Projektledare MR Physics Studierektor för forskarutbildningen Medicinsk strål
https://www.msf.lu.se/ronnie-wirestam - 2026-09-10
Popular Abstract in Swedish Studier av cystatin C's funktion in vitro och in vivo.Cystatin C variants with Arg8, Leu9 and/or Val10 replaced by Gly residues were produced by site-directed mutagenesis and E. coli expression. Their interactions with the target proteases, cathepsin B, L, H and S, were studied in vitro in order to provide basic structure-function information of use in the design of specific inhibitors for therapeutic use. Val10 was shown to be the most contributing
Background: Obesity has been proposed as a risk factor for pancreatic cancer. Methods: Pooled data were analyzed from the National Cancer Institute Pancreatic Cancer Cohort Consortium (PanScan) to study the association, between prediagnostic anthropometric measures and risk of pancreatic cancer. PanScan applied a nested case-control study design and included 2170 cases and 2209 control subjects. O
The etiology of polycystic ovary syndrome (PCOS) is unknown. However, PCOS has a strong resemblance to the insulin resistance (metabolic) syndrome, where an increased rate of visceral fat cell lipolysis is believed to play a pathophysiological role. We hypothesized that primary defects in visceral lipolysis might also exist in PCOS. Ten young, nonobese, and otherwise healthy PCOS women were compar
Objective: The vagina makes a major contribution to the normal female sexual response cycle. An increase in vaginal blood flow is considered a key event in the mechanism of sexual arousal. Recent research has focused mainly on the cyclic GMP pathway and phosphodiesterase type 5 (PDE5, cyclic GMP specific PDE) in the control of vaginal vascular smooth muscle, whereas only little is known on the rol
Many small passerines regularly fly slowly when catching prey, flying in cluttered environments or landing on a perch or nest. While flying slowly, passerines generate most of the flight forces during the downstroke, and have a 'feathered upstroke' during which they make their wing inactive by retracting it close to the body and by spreading the primary wing feathers. How this flight mode relates
Popular Abstract in Swedish Denna avhandling utgår från den betydande variationen i försäljning av antidepressiva läkemedel mellan olika geografiska områden. Allmänläkare förskriver cirka två tredjedelar av dessa läkemedel. Syftet med forskningsprojektet var dels att kartlägga allmänläkares uppfattningar om depression och faktorer som kan ha betydelse för deras sätt att behandla patienter med deprThis thesis emanates from considerations about the inter-regional variation of the sales of antidepressive drugs, and how general practitioners may contribute to that variation. The thesis comprises two data collections utilized for five separate studies. The first data set emerges from interviews with seventeen general practitioners and is used for papers I and II. The first paper reports on gene
Nuclear medicine uses radioactive pharmaceuticals for diagnostic or therapeutic purposes. The ionizing radiation emitted from the radiopharmaceutical is partially absorbed within the patient's body and internal dosimetry is the method to estimate the absorbed dose to a tumour or risk organ. This is of special importance in radiopharmaceutical therapy (RPT), where particle-emitting radionuclides ar
Purpose This study reports on the development of an auditory passage comprehension task for Swedish primary school children of cultural and linguistic diversity. It also reports on their performance on the task in quiet and in noise. Method Eighty-eight children aged 7-9 years and showing normal hearing participated. The children were divided into three groups based on presumed language exposure:
Context. The star cluster initial mass function is observed to have an inverse power law exponent around 2, yet there is no consensus on what determines this distribution, and why some variation is observed in different galaxies. Furthermore, the cluster formation efficiency (CFE) covers a range of values, particularly when considering different environments. These clusters are often used to empir
Tamoxifen prevents recurrence of breast cancer and is also approved for preventive, risk-reducing, therapy. Tamoxifen alters the breast tissue composition and decreases the mammographic density. We aimed to test if baseline breast tissue composition influences tamoxifen-associated density change. This biopsy-based study included 83 participants randomised to 6 months daily intake of placebo, 20, 1
Environmental aspects have during the last years made electric vehicles an interesting competitor to the present internal combustion engine driven vehicles. For a broad introduction of pure electric vehicles, a battery charging infrastructure is deemed necessary. However, to build and maintain such an infrastructure is costly. Active power line conditioning capabilities could be included in the ba
Abstract Title: Developing an Inventory Control Policy and Forecasting Model for an E- Commerce Company Authors: Patrik Lorentsson & Nilan Nabavieh Supervisor: Johan Marklund, Department of Industrial Management and Logistics Background: Increasingly competitive business environments forces companies to develop better control of the material flows in their supply chain. Inventories are oft
Popular Abstract in Swedish Strålbehandling av cancerpatienter sker idag med avancerad teknik och utrustning. Förberedelserna inför behandlingen är omfattande och kräver medverkan av flera olika personalkategorier och övervakning via datoriserade verifikationssystem. I varje led i förberedelsekedjan finns en potentiell risk för avvikelser, vilka kan vara både systematiska eller tillfälliga i sin nThe aim of this work was to develop, implement and evaluate an independent system with which to calculate the absorbed dose, delivered by high-energy X-ray beams, to the prescription point and the depth of dose maximum. The introduction of such a system in the clinical routine may help ensure high-quality treatment and avoidance of errors which may jeopardise the clinical outcome of the treatment
The main aim of my research is to unravel the origin and evolution of large spiral galaxies like our own Milky Way. This is best done by by probing and mapping in detail the age, chemical abundance, and kinematical properties of its main structural components. To do this I have utilised different tracers: dwarf stars in the solar neighbourhood, red giant stars in the inner and outer regions of the
https://www.astro.lu.se/~tbensby/galactic-archaeology - 2026-09-09
Characterization of airborne nanoparticles The Aerosol Laboratory is equipped with state-of-the-art tools for physical, chemical, and biological characterization of airborne nanoparticles and is open for collaborations in nanoscience and nanosafety. The 400 m2 laboratory provides ample opportunity for transient set-ups, and additionally, the tools are all mobile enough to be brought to other locat
https://www.nano.lu.se/labs/lund-nano-characterization-labs/aerosollab - 2026-09-09
Vitamin D (25OHD) is essential for maintaining calcium homeostasis and inadequate levels have been associated with negative musculoskeletal as well as extraskeletal effects. Individuals at especially high risk of developing hypovitaminosis D are the elderly. The aim of this thesis was to investigate the association between 25OHD insufficiency (25OHD <50 nmol/L) and fractures, frailty and mortality
Popular Abstract in Swedish Eld har fascinerat människan i alla tider. Att sitta och värma sig vid en lägereld, sjunga sånger eller bara titta på hur elden rör sig är något de flesta har upplevt. Hur många har egentligen funderat på var värmen kommer ifrån, hur den gula färgen uppstår eller vad eld egentligen består av? Några av frågorna finns det nu svar på, men fortfarande finns det mycket att uThe work presented in the thesis covers the use of laser-induced fluorescence (LIF) and photofragmentation laser-induced fluorescence (PFLIF) with short laser pulses to determine species concentrations in different combustion environments. To attain quantitative species concentrations using LIF investigations of the influence of collisional quenching on the fluorescence signal strength is of vital
