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Evaluation of a Fiber-Optic Based Pulsed Laser System for Fluorescence Spectroscopy

A fiber optic based continous wave laser setup has been developed to record the 5-aminolevulinic (5-ALA) induced Protoporfyrin IX (PpIX) fluorescence signals from cerebral gliomas. To reduce the energy delivered to the tissue as well as suppression of the ambient lamp artifact from the recorded spectra, a pulsed laser setup has been developed and evaluated. This setup has been calibrated and first

Development and quality analysis of the Salutogenic Health Indicator Scale (SHIS).

BACKGROUND: Current health measurement instruments tend to measure aspects of ill-health rather than health in general. There is a need for a salutogenic perspective when describing health and developing a health measurement instrument. The aim of this article is to present the development process and quality assessment of a salutogenic health indicator scale. METHODS: A description of health, ema

Protein kinase C in porcine retinal arteries and neuroretina following retinal ischemia-reperfusion.

PURPOSE: Identification of the intracellular signal-transduction pathways activated in retinal ischemia may be important in revealing novel pharmacological targets. To date, most studies have focused on identifying neuroprotective agents. The retinal blood vessels are key organs in circulatory failure, and this study was therefore designed to examine the retinal vasculature separately from the neu

Adjustable valves in normal-pressure hydrocephalus: a retrospective study of 218 patients.

OBJECTIVE: We sought to assess the value of adjusting shunt valve opening pressure, complications, and outcomes with the use of an adjustable shunt valve in the treatment of patients with normal-pressure hydrocephalus (NPH). METHODS: In a single-center retrospective study, 231 adjustable valves (range, 30-200 mm H2O) were the first shunt implantations in 147 patients with idiopathic NPH (INPH) and

Studies of Phonons and Phase Transitions by Time-Resolved X-ray Diffraction

When light is used to study structures, the wavelength limits the size of the details that can be resolved. Visible light can be used to investigate structures as small as a micrometre in size. To study smaller structures a shorter wavelength is required. The wavelength of hard X-ray radiation is much shorter than that of visible light, and is comparable to the distance between atoms in solids and

No Risk of Maternal EBV Infection for Childhood Leukemia.

We performed a large nested case-control study within the Finnish and Icelandic maternity cohorts to verify/falsify the association of maternal EBV infection with an increased risk of acute lymphoblastic leukemia (ALL) in the offspring found in previous studies. All hematologic malignancies diagnosed among children born during 1983 to 2006 in Finland and 1997 to 2005 in Iceland were identified thr

Hydroxide ion concentration at an interface between concrete and a self-levelling flooring compound

This article presents results from measurements of hydroxide ion transport between a concrete and a floor screed of a lower alkalinity than the concrete. As many floor coverings and floor adhesives are sensitive to high alkaline conditions it is important to know how hydroxide ions are transported to be able to evaluate the long-term function of floor constructions. It was found that only minor tr

Optimal meetings: Realising the environmental and economic promise of virtual business meetings. A case study of Telia Research AB

In Sweden, 13 % of all transport is related to business travelling, resulting in significant emissions of not only CO2, but also of NOx, VOC, CO and particle matter. The implication for business will not only come in the form of ecological impacts affecting the natural resource base; as people around the world wake up to the fact that issues, like climate change, are a real threat to their welfare