Search results

In this study, we assess the impact of an image restoration pipeline, designed for digital mammography, on the detectability of microcalcifications of different sizes across varied radiation exposures. The restoration pipeline first removes the noise of the image considering a Poisson-Gaussian noise model that incorporates quantum and electronic noise. Then, it appropriately merges the noisy and d

Nepal ligger i ett av världens mest jordbävningsutsatta områden, och jordbävningen i Gorkha 2015 visade tydligt hur sårbara murverksbyggnader utan ingenjörsmässig dimensionering kan vara. I återuppbyggnadsarbetet har interlocking Compressed Sta- bilised Earth Blocks (CSEB) lyfts fram som ett möjligt alternativ till traditionellt murverk av bränt lertegel. Detta eftersom systemet både kan vara mer Nepal is located in one of the most seismically active regions in the world, and the 2015 Gorkha earthquake clearly demonstrated the vulnerability of non-engineered masonry buildings. In the reconstruction efforts following the earthquake, interlocking Com- pressed Stabilised Earth Blocks (CSEB) have been highlighted as a potentially more seismically robust and at the same time more sustainable al

We have developed a method for simultaneous tomosynthesis and mechanical imaging, called DBTMI. Mechanical imaging measures the stress distribution over the compressed breast surface. Malignant tissue is usually stiffer than benign, which results in higher stress on the compressed breast and enables to distinguish malignant from benign findings. By combining tomosynthesis and mechanical imaging, w

Tumor growth rate estimations can provide useful information about tumor progression and aggressiveness. Understanding the breast cancer progression and aggressiveness could aid with personalized screening/follow-up, treatment options, and prognosis. This paper reports a preliminary estimation of the tumor volume doubling time (TVDT) for cancers detected during the Malmö Breast Tomosynthesis Scree

Objects created by 3D printers are increasingly used in various medical applications. Today, affordable 3D printers, using Fused Deposition Modeling are widely available. In this project, a commercially available 3D printer was used to replicate a conventional radiographic contrast detail phantom. Printing materials were selected by comparing their x-ray attenuation properties. Two replicas were p

BACKGROUND: Despite pain control being a top priority in end-of-life care, pain continues to be a troublesome symptom and comprehensive data on pain prevalence and pain relief in patients with different diagnoses are scarce.METHODS: The Swedish Register of Palliative Care (SRPC) was used to retrieve data from 2011 to 2022 about pain during the last week of life. Data were collected regarding occur

Wearer trials with human subjects were included in the Subzero project in order to validate the manikins' data against practice. Physiological tests of the project were aimed to study hu-man subjects at thermal comfort or being slightly warm in cold: 0, -10, -25 and wind-chill temperature –50 ºC. Wind-chill temperature –50 was achieved by combination of 2 tempera-tures and wind velocities: -40 ºC

Popular Abstract in Swedish Länge trodde man att mikroorganismer spreds obehindrat på grund av deras ringa storlek och höga celltäthet. Eftersom de är väldigt små kan de lätt transporteras i vattendroppar med hjälp av vinden eller genom att fästa vid andra organismer så som fåglar och insekter. Endast miljöförhållanden som gynnade särskilda mikrober troddes påverka arters spridning och organismsamFor a long time microorganisms were assumed to have unlimited dispersal due to their small size and high cell numbers. Most microbial species can be transported by water currents, in water droplets by wind and attached to other organisms. Environmental conditions alone were supposed to affect the distribution of species and the community composition. Therefore, microorganisms were assumed to consi

A data set of adaptive optics images has been analyzed in order to study the effects of angular anisoplanatism and to characterize Mauna Kea nighttime turbulence. The data set consists of a selection of Galactic center images obtained with the adaptive optics instrument Hokupa'a and the near-infrared camera QUIRC on the Gemini-North 8 m telescope. Using the Strehl ratio and the FWHM as tracers for

CCD observations of V538 Cas have been made on nine nights during three weeks using the AAVSO Bright Star Monitor. No significant variations were found.

Den här uppsatsen har haft som föresats att i första hand analysera artikelserien ”Politikens Prinsessor” som publicerades i Svensk Damtidning 2014. Utöver detta fanns även en önskan om att undersöka hur artikelserien kan förstås i relation till en eventuell medielogik. Genom ett urval av exempel från artikelserien var ambitionen att ge möjliga tolkningar av det empiriska materialet utifrån Maud E