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A Rate-Maximizing Channel-Shortening Detector with Soft Feedback Side Information

In this paper, we present a novel approach for the design of rate-maximizing channel shortening detectors with soft feedback side information for frequency-selective channels. The detector is a soft-input soft-output detector and constitutes one of the components of an iterative receiver. The design optimization is performed from an information-theoretic perspective where we maximize the achievabl

Fast simulated annealing in R-d with an application to maximum likelihood estimation in state-space models

We study simulated annealing algorithms to maximise a function psi on a subset of R-d. In classical simulated annealing, given a current state theta(n) in stage n of the algorithm, the probability to accept a proposed state z at which psi is smaller, is exp(-beta(n+1)(psi(z) - psi (theta(n))) where (beta(n)) is the inverse temperature. With the standard logarithmic increase of (beta(n)) the probab

Testing the limits of Paleozoic chronostratigraphic correlation via high-resolution (<500 k.y.) integrated conodont, graptolite, and carbon isotope (delta C-13(carb)) biochemostratigraphy across the Llandovery-Wenlock (Silurian) boundary: Is a unified Phanerozoic time scale achievable?

The resolution and fidelity of global chronostratigraphic correlation are direct functions of the time period under consideration. By virtue of deep-ocean cores and astrochronology, the Cenozoic and Mesozoic time scales carry error bars of a few thousand years (k.y.) to a few hundred k. y. In contrast, most of the Paleozoic time scale carries error bars of plus or minus a few million years (m. y.)

Local steroid injection for moderately severe idiopathic carpal tunnel syndrome: Protocol of a randomized double-blind placebo-controlled trial (NCT 00806871)

Background: Patients with idiopathic carpal tunnel syndrome (CTS) are commonly treated with steroid injection into or proximal to the carpal tunnel. However, evidence for its efficacy beyond one month has not been established in randomized placebo-controlled trials. The primary aim of this randomized trial is to assess the efficacy of steroid injection into the carpal tunnel in relieving symptoms

Imaging of Intracellular and Extracellular ROS Levels in Atherosclerotic Mouse Aortas Ex Vivo: Effects of Lipid Lowering by Diet or Atorvastatin.

The first objective was to investigate if intracellular and extracellular levels of reactive oxygen species (ROS) within the mouse aorta increase before or after diet-induced lesion formation. The second objective was to investigate if intracellular and extracellular ROS correlates to cell composition in atherosclerotic lesions. The third objective was to investigate if intracellular and extracell

Måltiden en het potatis för barnfamiljer

Måltiderna ska lösas intellektuellt, praktiskt och emotionellt. Flera gånger varje dag. Hur hittar unga familjer matinspiration under vardagens tidspress? Och hur klarar de vardagens ”hot spot” mellan 17 och 18? Att handla mat och komponera vardagens måltider är en ständigt pågående problemlösningsprocess. Den som har ansvaret behöver idéer, inte alltid nyskapande och dramatiska, men ändå någon

Nanofluidic Cells with Controlled Path length and Liquid Flow for Rapid, High-Resolution In Situ Imaging with Electrons

The use of electron probes for in situ imaging of solution phase systems has been a long held objective, largely driven by the prospect of atomic resolution of molecular structural dynamics relevant to chemistry and biology. Here, we present a nanofluidic sample cell with active feedback to maintain stable flow conditions for pathlengths varying from 45 nm to several 100 nm, over a useable viewing

CD1d restricted NKT cells in regulation of pathogenic autoimmunity

Human autoimmune diseases such as reumatoid arthritis (RA) and multiple sclerosis (MS) are believed to develop when self-tolerance mechanisms are failing, with a chronic destructive inflammation as result. To experimentally study autoimmunity, we have used murine models that mimic their human counterparts; experimental autoimmune encephalomyelitis (EAE) – a model for MS, and collagen induced arthr

Prevalence, physical activity and work in patients with spondyloarthritis

Spondyloarthritis (SpA) is a group of interrelated inflammatory rheumatic diseases with the sub-diagnoses ankylosing spondylitis (AS), psoriatic arthritis (PsA), arthritis-associated inflammatory bowel disease (Aa-IBD), undifferentiated SpA (USpA), where stiffness and pain are key symptoms. Insidious onset back pain, morning stiffness, waking up at night, and improvement from exercise are common c

Forwarding a challenging task: Seven elements for capacity development for disaster risk reduction

Capacity development for disaster risk reduction is an important process to substantially reduce disaster losses, which threaten sustainable development and the achievement of the Millennium Development Goals. This paper presents seven elements for capacity development for disaster risk reduction that has been applied in practise with noteworthy results. The seven elements are: (1) Terminology, (2

Outcomes of antiretroviral treatment: a comparison between hospitals and health centers in ethiopia.

Objective: The objective of this study was to compare the outcomes of antiretroviral therapy (ART) between hospital and health center levels in Ethiopia. METHODS: Medical records of 1709 ART patients followed for 24 months at 2 hospitals and 3 health centers in the Oromia region of Ethiopia were reviewed. Noted outcomes of ART were currently alive and on treatment; lost to follow-up (LTFU); transf

Hip Fracture Risk and Cadmium in Erythrocytes: A Nested Case-Control Study with Prospectively Collected Samples

Several studies have investigated the relation between bone mass density and cadmium exposure, but only few studies have been performed on fractures and biomarkers of cadmium. This study analyzed the association between hip fracture risk and cadmium in erythrocytes (Ery-Cd). Prospective samples from the Northern Sweden Health and Disease Study's biobank were used for 109 individuals who later in l