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Conversion of helical tomotherapy plans to step-and-shoot IMRT plans-Pareto front evaluation of plans from a new treatment planning system

Purpose: The resulting plans from a new type of treatment planning system called SharePlan (TM) have been studied. This software allows for the conversion of treatment plans generated in a TomoTherapy system for helical delivery, into plans deliverable on C-arm linear accelerators (linacs), which is of particular interest for clinics with a single TomoTherapy unit. The purpose of this work was to

Floorball-related eye injuries: The impact of protective eyewear.

Several previous studies have shown that floorball belongs to a high-risk group of sports in terms of eye injuries. Protective eyewear is available, but the extent of its use and impact on eye injuries are unknown. The purpose of this study was to investigate the current incidence of eye injuries caused by floorball and to compare it with the present use of protective eyewear. Medical records were

Fotblomflugor Platycheirus (Diptera, Syrphidae) längs den svenska fjällkedjan: en flerårig inventering.

The fauna of hoverflies in Boreal and Arctic parts of Scandinavia is still very poorly investigated. Therefore we performed an 11 year survey of the hoverfly genus Platycheirus Lepeletier & Serville, 1828 along the Caledonian mountain chain in Sweden (from Värmland northwards to the Torneträsk area). During 2003-2013 we annually performed two trips in order to survey various areas and to colle

The Antimicrobial Peptide Cathelicidin Protects Mice from Escherichia coli O157:H7-Mediated Disease.

This study investigated the role of the antimicrobial peptide cathelicidin in Escherichia coli O157:H7 infection and subsequent renal damage. Mouse and human cathelicidin, CRAMP and LL-37, respectively, killed E. coli O157:H7 in vitro. Intestines from healthy wild-type (129/SvJ) and cathelicidin-knock-out (Camp(-/-)) mice were investigated, showing that cathelicidin-deficient mice had a thinner co

Singular inverse Wishart distribution and its application to portfolio theory

The inverse of the standard estimate of covariance matrix is frequently used in the portfolio theory to estimate the optimal portfolio weights. For this problem, the distribution of the linear transformation of the inverse is needed. We obtain this distribution in the case when the sample size is smaller than the dimension, the underlying covariance matrix is singular, and the vectors of returns a

Single-fiber diffuse optical time-of-flight spectroscopy

We demonstrate interstitial diffuse optical time-of-fight spectroscopy based on a single fiber for both light delivery and detection. Detector saturation due to the massive short-time reflection is avoided by ultrafast gating of a single photon avalanche diode. We show that the effects of scattering and absorption are separable and that absorption can be assessed independently of scattering. Measu

The professionalization of the field of education in Sweden: A historical analysis

This article analyses the professionalization of the education field in Sweden from a historical perspective by tracing efforts towards professionalization of teaching from a clerically consecrated to a scientifically grounded praxis. Some of these efforts seem to be fairly typical for welfare states like Sweden. However, others are more unique, such as the state ambition to create a unified teach

Äldre cyklister

Syftet med denna studie är att studera hur äldre personer ser på cykeln och vilka möjligheter cykeln ger, vad som får en äldre person att sluta cykla och vilken påverkan det får samt hur olycksbilden och hjälmanvändningen ser ut bland äldre personer. Tre delstudier genomfördes, en kvantitativ enkätundersökning bland personer som är 65 år och äldre, fokusgruppsintervjuer med äldre cyklister och ana

Perceived risks for slipping and falling at work during wintertime and criteria for a slip-resistant winter shoe among Swedish outdoor workers

The leading cause of work related accidents in Sweden is falls. Many slips and falls occur on icy and snowy surfaces, but there is limited knowledge about how to prevent accidents during outdoor work in winter conditions. The purpose of this study was to describe risk factors of slips and falls and criteria for slip-resistant winter shoes from a user perspective. The result is based on focus group

Education: A Forgotten Dimension of Church Identity?

In general churches talk a lot about the importance of education. At the same time their educational praxis is often fragmentized. The most crucial factor for this is a weak connection between the Church's identity and its activity. When this link is diffuse, different activities have a tendency to live their own lives. This article examines some basic official Church documents from half a dozen c

The crystal structure of beta-alanine synthase from Drosophila melanogaster reveals a homooctameric helical turn-like assembly

beta-Alanine synthase (PAS) is the third enzyme in the reductive pyrimidine catabolic pathway, which is responsible for the breakdown of the nucleotide bases uracil and thymine in higher organisms. It catalyzes the hydrolysis of N-carbamyl-beta-alanine and N-carbamyl-beta-aminoisobutyrate to the corresponding beta-amino acids. beta ASs are grouped into two phylogenetically unrelated subfamilies, a

A Component-Based Approach to Ultrasonic Self Localization in Sensor Networks

This report describes the development of an ultrasound based self localization system for mobile robots. The robot navigates using a combination of internal wheel encoders and absolute distance information from a sensor network. The sensor fusion problem is formulated as a non-linear state estimation problem which is approximated using an extended Kalman filter.

Global Conservation Priorities for Marine Turtles

Where conservation resources are limited and conservation targets are diverse, robust yet flexible priority-setting frameworks are vital. Priority-setting is especially important for geographically widespread species with distinct populations subject to multiple threats that operate on different spatial and temporal scales. Marine turtles are widely distributed and exhibit intra-specific variation

Abdominal aortic aneurysm and infection with CagA positive strains of Helicobacter pylori

The aim of the present study was to investigate whether virulent CagA positive Helicobacter pylori strains are those preferentially related to abdominal aortic aneurysm (AAA) rupture. Several microorganisms have been linked to aneurysm development. Chronic Chlamydophila pneumoniae infection has been suggested as a possible contributing factor for the development and expansion of AAA. Previous stud

The potential role of isothermal calorimetry in studies of the stability of fresh-cut fruits

Attention is drawn to the feasibility of using high sensitivity isothermal heat conduction calorimetry to study metabolic responses of differently processed and stored fresh-cut fruit. The heat production of endogenous (tissue metabolism during 12 h of analysis at 10 degrees C for kiwifruit and strawberry) and exogenous (microbial growth during 18 d of analysis at 10 degrees C for cantaloupe) biol

Roof top PV retrofitting: A rehabilitation assessment towards nearly zero energy buildings in remote off-grid vernacular settlements in Egypt

Vernacular buildings in Egypt express a variety of passive low-tech approaches in design and construction to achieve human comfort and fulfil inhabitants’ requirements. They have been devised to suit living in regions where local inhabitants had to invent various passive building strategies to live under severe local climatic conditions without depending on fossil fuels. This paper discusses a ret