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Wireless capsule endoscopy (WCE) is the prime diagnostic modality for the small-bowel. It consists in a swallowable color camera that enables the visual detection and assessment of abnormalities, without patient discomfort. The localization of the capsule is currently performed in the 3D abdominal space using radiofrequency (RF) triangulation. However, this approach does not provide sufficient inf
Aim: Childhood cancer patients are subjected to recurring painful medical procedures. In low- and middle-income countries (LMIC), where the majority of the world's childhood cancer patients live, pain management is often unsatisfactory due to limited resources. This study aimed to evaluate the possibility of conducting a preprocedural preparation for lumbar punctures (LPs) at a pediatric oncology
Objective: To evaluate in low-risk pregnancies if longitudinal change in cerebro-placental ratio (CPR) between 37 and 40 weeks of pregnancy is associated with cesarean section (CS) for non-reassuring fetal status (NRFS) during labor. Methods: This is a prospective observational study of women with singleton low-risk pregnancies who underwent an ultrasound scan at 36 + 0 to 37 + 6 and 39 + 0 to 41
In this work, we exploited time-resolved fluorescence polarization anisotropy (TRFA) to characterize un-doped and doped carbon dots (CDs). The rotational correlation time related to the size of the particle through classical Stokes-Einstein-Debye equation. The TRFA technique applied in this study achieves picoseconds time resolution, which approximately corresponds to the particle size determinati
Cloud Storage Providers (CSPs) offer solutions to relieve users from locally storing vast amounts of data, including personal and sensitive ones. While users may desire to retain some privacy on the data they outsource, CSPs are interested in reducing the total storage space by employing compression techniques such as deduplication. We propose a new cryptographic primitive that simultaneously real
Popular Abstract in Swedish I denna avhandling har jag fördjupat mig i de ekologiska sambanden mellan några av de mest påtagliga och kända organismerna i sjöar och dammar, nämligen sjöfåglar, undervattensväxter, smådjur (från och med nu kallade evertebrater, vilket betyder ryggradslösa djur), och i viss grad fisk. Bland sjöfåglarna (här avses främst änder, gäss, svanar och sothöns) finns det både The aim of this thesis was to explore some of the important links between waterfowl and the biota in shallow eutrophic lakes in temperate areas. Waterfowl depend on macroinvertebrates as sources of protein and calcium, which are essential for egg production and growth. Macroinvertebrates in turn depend on submerged vegetation for food and shelter. Increased density of vegetation thus leads to incr
Popular Abstract in Swedish Bröstcancer är den vanligaste cancerdiagnosen hos svenska kvinnor, ca 8000 tumörer diagnosticeras årligen. Vid rekommendation om behandling till patienter med nyupptäckt bröstcancer utgår man från ett antal prognostiska (risk för återfall och död utan behandling) och prediktiva (risk för återfall och död med specifik behandling) faktorer. Ålder, tumörstorlek, cancercellBreast cancer is a heterogeneous disease with variations in the biological profile and subsequent clinical prognosis. Molecular mechanisms for tumour progression are currently being explored in scientific settings, suggesting parallel evolution of tumour cells at primary and metastatic locations. The molecular profiles could be altered affecting individual patient’s treatment and prognosis. In the
We have studied drug release and skin permeation from several different liquid crystalline lipid formulations that may be used to control the respective release rates. We have studied the release and permeation through human skin of a water-soluble and amphiphilic drug, propranolol hydrochloride, from several formulations prepared with monoolein and phytantriol as permeation enhancers and controll
Popular Abstract in Swedish Cancer är ett samlingsnamn för en grupp av sjukdomar som karakteriseras av att cellerna delar sig okontrollerat, till skillnad mot kroppens friska celler. Det leder till att en tumör kan bildas och cellerna kan därifrån sprida sig till andra delar av kroppen och ge upphov till dottertumörer, även kallade metastaser. I Sverige uppskattar man att cirka var tredje person kSmall cell lung carcinoma (SCLC) is a very aggressive solid tumor and is often widely metastasized by the time of diagnosis. Despite good response to the initial chemotherapy, SCLC cells often develop multidrug resistance to conventionally used chemotherapeutic drugs, which cause almost all SCLC tumors to relapse. The 5-year survival rate for patients with limited disease is around 20% while it is
Thylakoids are the photosynthetic membranes of the chloroplasts in green leaves. Thylakoids have been found to promote satiety when added to food, both in animal experimental models and in human. The thylakoids act through inhibition of lipase-colipase catalysed hydrolysis of triacylglycerol, which is the main dietary fat component. The mechanism for inhibition is either a binding of thylakoids to
Popular Abstract in Swedish Övervikt är ett av vår tids största hälsoproblem, kanske till och med det största. Det finns de som menar att redan idag utgör övervikt globalt sett en viktigare orsak till sjukdom än undernäring och infektionssjukdomar. Framtidsscenariot beskrivs som alarmerande. Folk kommer att i en tidigare aldrig skådad omfattning insjukna i överviktens följdsjukdomar. Medierna harThe prevalence of overweight and obesity is rising each year not only on a national but also on a global level. The future scenario is troublesome. The media are among the most important social institutions in influencing people’s knowledge, perceptions and actions. The media provide citizens with health messages and contribute thereby to their health development. This dissertation deals with two
Objectives: To explore reasons for institutionalization of people with dementia according to informal caregivers as well as variation in reasons between countries. Design: An explorative cross-sectional study was conducted in 8 European countries. Setting: Per country, a minimum of 3 long term care facilities, offering care and accommodation as a package, participated in this study. Participating
We analyse recent experiments on momentum shearing interferometry of electron wave packets1,2 by using an optical analogy with shearing interferometry for optical waves. This analogy offers a convenient point of view to discuss the capabilities and difficulties of this technique used to access the phase of electron wave packets.
Two systems for measurements of absorption and scattering properties, based on picosecond-pulse lasers and single-photon counting detection, were characterized using a detailed protocol. The first system utilizes diode lasers at 660, 785, 910 and 974 nm as light sources. The second employs a Ti:sapphire and a mode-locked dye laser to produce tunable pulses in the range 610 - 1000 nm. Using solid t
The aim of this short paper is to present an ongoing joint research project, Human Factors in Air Navigation Services (HUFA), between the Swedish Civil Aviation Administration and Lund University. Results from the study will only be given very briefly. The project focuses on human and organizational factors and safety in air traffic control.
To fulfill increasing requirements within the manufacturing sector, highly flexible and adaptable automation systems are needed. It is desirable to have one integrated approach that stretches from the process planning phase, through the implementation phase and all the way to the phase for execution of the process control logics. One promising approach is to use the concepts of service-oriented ar
Thirty images with added simulated pathological lesions at two different dose levels (100% and 10% dose) were evaluated with the free-response forced error experiment by nine experienced radiologists. The simulated pathological lesions present in the images were classified according to four different parameters: the position within the lumbar spine, possibility to perform a symmetrical (left-right
Popular AbstractStörre kriser och katastrofer som stormen Gudrun och dess konsekvenser är sannolikt att vänta i framtiden. Det råder dock ovisshet om vilka kriserna kommer att vara och under vilka förutsättningar. Nya och kompletterande vetenskapliga studier och metoder inom kris- och katastrofforskningen måste till för att öka samhällets kunskap om och förmåga att hantera kända och okända hotbildSevere crises and disasters such as the Hurricane Gudrun and their consequences will probably occur in the future. However, there are many uncertainties concerning disasters and their effects. New scientific approaches and methods for crisis and disaster research must be developed to increase the knowledge and ability of societies to manage known and unknown threats. Substantial research on the em
