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Background: Today, practically all computed tomography (CT) systems are delivered with automatic exposure control (AEC) systems operating with tube current modulation in three dimensions. Each of these systems has different specifications and operates somewhat differently. Purpose: To evaluate AEC systems from four different CT scanner manufacturers: General Electric (GE), Philips, Siemens, and To

PURPOSE: Women with breast cancer diagnosed early in life comprise a substantial portion of those tested for BRCA1/BRCA2 mutations; however, little information is available on the subsequent risks of contralateral breast cancer in mutation carriers. This study assessed the risk of subsequent contralateral breast cancer associated with carrying a BRCA1 or BRCA2 mutation. PATIENTS AND METHODS: In th

ABSTRACT: INTRODUCTION: Change in bone mineral density (BMD) in the hand, as evaluated by digital X-ray radiogrammetry (DXR) of the II-IV metacarpal bones, has been suggested to predict future joint damage in rheumatoid arthritis (RA). This study's objective was to investigate if DXR-BMD loss early in the disease predicts development of joint damage in RA patients followed for up to 20 years. METH

19Hela UtbildningsUtbUdet vid lUnds UniversitetHela UtbildningsUtbUdet vid lUnds Universitet18 apotekarprogrammet arabiska studier arbetsterapeutprogrammet arkitektutbildning audionomprogrammet barnmorskeutbildning beteendevetenskap biomedicinprogrammet brandingenjörsutbildning Civilekonomprogrammet: •Analytisk •Språklig (7 olika språk) Civilingenjör: •Bioteknik •Datateknik •Ekosystemteknik •Elekt

https://www.lu.se/sites/www.lu.se/files/ak_ht12_lu_nyborjarprogram.pdf - 2026-05-28

Course evaluation GEON07 2020 Answer Count: 3 GENERAL: Did the course fulfil your expectations?    GENERAL: Did the course fulfil your  expectations? Number of  Responses 0 (0.0%) 0 (0.0%) 1 (33.3%) 0 (0.0%) 2 (66.7%) Total 3 (100.0%) Mean Standard Deviation GENERAL: Did the course fulfil your expectations? 4.3 1.2 Comment YES! It's been amazing with the exception of covid-19. Yes and no. It didn'

https://www.geology.lu.se/sites/geology.lu.se/files/geon07_course_analysis_2020.pdf - 2026-05-28

Objectives To evaluate the first experience of real-time instantaneous wave-free ratio (iFR) measurement by clinicians. Background The iFR is a new vasodilator-free index of coronary stenosis severity, calculated as a trans-lesion pressure ratio during a specific period of baseline diastole, when distal resistance is lowest and stable. Because all previous studies have calculated iFR offline, the

Many actors in the construction sector as well as in the research community emphasize the importance of experience feedback and knowledge building in order to streamline and improve the working methods. Taking advantage of positive experiences, sharing them with colleagues and documenting them within the organisation can be useful for future projects. On the other hand, negative experiences should

Partially premixed combustion has the potential of high efficiency and simultaneous low soot and NOx emissions. Running the engine in PPC mode with high octane number fuels has the advantage of a longer premix period of fuel and air which reduces soot emissions, even at higher loads. The problem is the ignitability at low load and idle operating conditions. The objective is to investigate the use

1 NanoLund Strategic Plan 2026 - 2030 Societal Challenges we aim to address • Creating materials and technologies for a sustainable and resilient society Paradigms and technologies for efficient harvesting, distribution and use of energy, and for nanomaterial-based products that reduce our dependency on scarce or toxic materials, enabling product and production circularity, and make us and our env

https://www.nano.lu.se/sites/nano.lu.se/files/2026-04/NanoLund%20strategic%20plan%202026-2030.pdf - 2026-05-28

A growing middle class and increased consumption call for better utilization of resources. For companies to make use of all resources in the production system is not only a way of meeting the changing customer demands and regulatory changes regarding sustainability, but also a way of increasing profits. Finding new business opportunities for by-products can be considered as early stage innovation,

Environmental certification for buildings has become more common since the first certification system became available on the market in the 90s. Today there are hundreds of thousands buildings with an environmental certification. More and more companies choose to place their business in a certified building. The problem when companies are in the election of a new facility may be the lack of knowle

The phase center is defined as the point on an antenna from which the far field radiation seems to originate. Phase center calculations are often uncertain and vague, and very little concrete information is available on the subject. Recently, a replacement parameter called the radiation center was introduced in [5]. The radiation center is more rigorously defined than the phase center and possesses a

Populärvetenskaplig sammanfattning: Övergödningen av våra kustnära hav blev akut under 1980-talet, syrefria bottnar och giftiga algblomningar visade tydligt att något var mycket fel. Kväve, ett näringsämne, visade sig vara en av huvudorsakerna till dessa reaktioner i havet. De största kvävespridarna i Sverige var jordbruk och reningsverk. Avloppsvattenhanteringen behövde förändras och ett sätt attThe aim of this essay was to study the nitrogen flow in two willow plantations, at different locations in the south of Sweden, that were irrigated with sewage. The study was also performed to compare the differences in nitrogen flows between two years, 1998 and 1999. The study was made in three parts. First, the denitrification activity was measured using the acetylen inhibition method. Second the

The current curriculum requires a well functioning school library and an active use of it. In junior school grades 1-3 the children primarily learn basic skills. Knowledge about libraries and how to use them and different media is part of these skills. Therefore my intention was to investigate how school libraries in junior schools look, how they are used in the training and how they could be used

Abstract: The world in which companies are acting today offers challenges in the sense that it is rapidly changing and that a vast amount of information is available. In order to ensure the competitiveness and survival of the company, an effective and efficient environmental scanning is essential to the company. Our aim with this Master's thesis is to investigate what factors constitutes impor

The problems faced by children trafficked for Domestic Work seems to be a continuing problem. Whereas states have ratified the various conventions aimed at protecting children in this field, the problem persists. Trafficking of children is usually portrayed in a way that most times&semic the children are trafficked across borders from country to country for purposes of being economically explo

Bränder utgör en viktig roll i jordens system. Det är kritiskt för oss att förstå bränder och dess drivkrafter, för att på så sätt kunna förutspå brändernas förändring på grund av klimatförändring. Den här studien använder sig av Moderate Resolution Imaging Spectroradiometer (MODIS) brandens area produkt MCD45A1 för att karakterisera bränder. Högupplöst data är omformaterad till 0.25° × 0.25° cellWildfires play an important role in the earth system. Understanding the relationship between wildfires and their drivers is critical for us to predict fire regime transformations under the changing climate and anthropogenic influences. This study used the novel Moderate Resolution Imaging Spectroradiometer (MODIS) burned area product MCD45A1 to characterize wildfires. The high resolution data were

Objective To investigate if the prediction of malignant adnexal masses can be improved by considering different ultrasound-based subgroups of tumors and constructing a scoring system for each subgroup instead of using a risk estimation model applicable to all tumors. Methods We used a multicenter database of 1573 patients with at least one persistent adnexal mass. The masses were categorized into

Background: Reliable data on familial risks are important for clinical counselling and cancer genetics. Objective: To evaluate familial risks for renal cell carcinomas (RCC) through parental and sibling probands in the largest available dataset. Design, setting, and participants: This study examined the Swedish Family-Cancer Database on 12.2 million individuals, which contains families with parent

Validation of gene × environment interaction results from epidemiological studies in randomized clinical trials (RCTs) is usually hampered by insufficient statistical power. Genotype-based recall (GBR) refers to the design of studies in which subgroups of the population are selected based on their genotypes. In this thesis we test if a GBR approach of recruiting two groups of participants with dis