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Equilibrating errors: reliable estimation of information transmission rates in biological systems with spectral analysis-based methods

Shannon's seminal approach to estimating information capacity is widely used to quantify information processing by biological systems. However, the Shannon information theory, which is based on power spectrum estimation, necessarily contains two sources of error: time delay bias error and random error. These errors are particularly important for systems with relatively large time delay values and

Posterior laryngitis: a study of persisting symptoms and health-related quality of life.

Posterior laryngitis is a common cause of chronic cough, hoarseness, voice fatigue and throat pain. The aim of the present study was to examine how patients with posterior laryngitis have been examined, treated and followed up, and to assess their present health-related quality of life (HRQOL). Patients treated for posterior laryngitis at consultation at the ear-, nose- and throat clinic during 20

The Structure and Culture of Post-Communist Civil Society in Latvia

This article provides an account of post-communist civil society in Latvia. Based on original survey data, the structure of civil society is analysed on both individual and organisational levels and cultural aspects are examined. The weakness of post-communist civil society found in much previous research is confirmed when measured on the individual level and in relation to some organisational asp

"I want a baby, don't stop me from being a mother." An ethnographic study on fertility technology in the medical gray zones.

The increasing demand for human egg cells has led to reproductive tourism and a transnational egg trade. The activity flourishes due to poverty and criminality, as well as medical needs (infertility) and cultural needs (the dream of parenthood). Other factors are fundamental concepts, such as the view of the body as an object of utility and value. This article aims to go behind the normative discu

Evaluation of the relationship between capillary and venous plasma glucose concentrations obtained by the HemoCue Glucose 201+ system during an oral glucose tolerance test

Abstract In 55 women with previous gestational diabetes mellitus, simultaneous capillary and venous plasma glucose concentrations were measured at 0, 30 and 120 min during a 75 g oral glucose tolerance test (OGTT). The aims of the study were to examine the relationship between capillary and venous glucose measurements, and to establish equations for the conversion of capillary and venous glucose c

Morphology, ontogeny and distribution of the Cambrian Series 2 ellipsocephalid trilobite Strenuaeva spinosa from Scandinavia

The ellipsocephalid trilobite Strenuaeva spinosa occurs widely in Scandinavia in the lower part of the Ornamentaspis? linnarssoni Zone (Cambrian Series 2). Its first appearance is a readily recognisable, widespread biohorizon in Scandinavia. During ontogeny, intergenal spines are lost and the librigenae develop from a generative zone in the genal region. The palpebro-ocular ridges are distinct and

Lu-177-[DOTA0,Tyr3] Octreotate Therapy in Patients With Disseminated Neuroendocrine Tumors: Analysis of Dosimetry With Impact on Future Therapeutic Strategy

BACKGROUND: Lu-177-(DOTAO,Tyr3) octreotate is a new treatment modality for disseminated neuroendocrine tumors. According to a consensus protocol, the calculated maximally tolerated absorbed dose to the kidney should not exceed 27 Gy. In commonly used dosimetry methods, planar imaging is used for determination of the residence time, whereas the kidney mass is determined from a computed tomography (

The Traveling Salesman Problem in Bounded Degree Graphs

We show that the traveling salesman problem in bounded-degree graphs can be solved in time O((2 - epsilon)(n)), where epsilon > 0 depends only on the degree bound but not on the number of cities, n. The algorithm is a variant of the classical dynamic programming solution due to Bellman, and, independently, Held and Karp. In the case of bounded integer weights on the edges, we also give a polynomia

Synthesizing greenhouse gas fluxes across nine European peatlands and shrublands - responses to climatic and environmental changes

In this study, we compare annual fluxes of methane (CH4), nitrous oxide (N2O) and soil respiratory carbon dioxide (CO2) measured at nine European peatlands (n = 4) and shrublands (n = 5). The sites range from northern Sweden to Spain, covering a span in mean annual air temperature from 0 to 16 degrees C, and in annual precipitation from 300 to 1300 mm yr(-1). The effects of climate change, includi

delta C-13 chemostratigraphy in the upper Tremadocian through lower Katian (Ordovician) carbonate succession of the Siljan district, central Sweden

Based on delta C-13 data from two drillcores recovered from the Siljan district, we present a first continuous carbon isotope record of the upper Tremadocian-lower Katian limestone succession of central Sweden. New names for some isotopic carbon excursions from the Cambrian-Ordovician boundary through the basal Darriwilian are introduced. The Mora 001 core from the western part of the Siljan impac

From words to action: Concepts, framings of problems and knowledge production practices in regional transport infrastructure planning in Sweden

This paper presents an analysis of a regional transport infrastructure plan in Sweden. A comparison is made of two concepts central to transport infrastructure planning in Sweden; Regional expansion and Environmentally sound transport. These concepts signify different perspectives on the benefits and problems with transport. The analysis explains how these clashing perspectives are resolved in the

Learning Stimulus Intervals – Adaptive Timing of Conditioned Purkinje Cell Responses

Classical conditioning of motor responses, such as the eyeblink response, is an experimental model of associative learning and of adaptive timing of movements. A conditioned blink will have its maximum amplitude near the expected onset of the unconditioned blink-eliciting stimulus and it adapts to changes in the interval between the conditioned and unconditioned stimuli. Previous studies have show

Interfacial Molecular Imprinting in Nanoparticle-Stabilized Emulsions.

A new interfacial nano and molecular imprinting approach is developed to prepare spherical molecularly imprinted polymers with well-controlled hierarchical structures. This method is based on Pickering emulsion polymerization using template-modified colloidal particles. The interfacial imprinting is carried out in particle-stabilized oil-in-water emulsions, where the molecular template is presente

A Compartmental Model for Biokinetics and Dosimetry of 18F-Choline in Prostate Cancer Patients

PET with F-18-choline (F-18-FCH) is used in the diagnosis of prostate cancer and its recurrences. In this work, biodistribution data from a recent study conducted at Skane University Hospital Malmo were used for the development of a biokinetic and dosimetric model. Methods: The biodistribution of F-18-FCH was followed for 10 patients using PET up to 4 h after administration. Activity concentration

Controversial role of toll-like receptors in acute pancreatitis.

Acute pancreatitis (AP) is a common clinical condition with an incidence of about 300 or more patients per million annually. About 10%-15% of patients will develop severe acute pancreatitis (SAP) and of those, 10%-30% may die due to SAP-associated complications. Despite the improvements done in the diagnosis and management of AP, the mortality rate has not significantly declined during the last de

Heterogeneous and Complex Rearrangements of Chromosome Arm 6q in Chondromyxoid Fibroma. Delineation of Breakpoints and Analysis of Candidate Target Genes.

Chondromyxoid fibroma (CMF) is an uncommon benign cartilaginous tumor of bone usually occurring during the second decade of life. CMF is associated with recurrent rearrangements of chromosome bands 6p23-25, 6q12-15, and 6q23-27. To delineate further the role and frequency of the involvement of three candidate regions (6q13, 6q23.3 and 6q24) in the pathogenesis of CMF, we studied a group of 43 case