Search results

Filter

Filetype

Your search for "*" yielded 532033 hits

Evaluation of microwave thermotherapy with histopathology, magnetic resonance imaging and temperature mapping

Purpose: Interstitial temperature mapping was used to determine the heat field within the prostate by the Coretherm. (ProstaLund, Lund, Sweden) transurethral microwave thermotherapy device. Gadolinium. enhanced magnetic resonance imaging (MRI) and histopathology were used to determine the extent and pattern of coagulation necrosis following treatment. The cell kill assessment feature of the device

Partial Forward-Backward Averaging for Enhanced Frequency Estimation of Real X-texture Modes

In this paper, enhancement of the signal root estimation of a particular kind of real-valued two-dimensional (2-D) sinusoidal modes is considered. To its constitution, each mode corresponds to the superposition of two real-valued plane waves in a particular symmetry. The concept of partial forward-backward averaging, which is applicable for modes that are undamped in at least one dimension, is int

Condensation energy of the homogeneous electron gas from density-functional theory for superconductors

The condensation energy of homogeneous electron gas is calculated within the density-functional theory for superconductors. Purely electronic considerations include the exchange energy exactly and the correlation energy on a level of the random phase approximation. Singlet superconductivity is assumed, and the Coulomb interaction is studied with a model pairing potential at angular momentum up to

Mathematical modelling and parametric studies of affinity chromatography

In this study a model based on mass transfer and sorption rate constants with physical significance is used for simulation of affinity chromatography, The simulation program has been used to perform a parametric analysis of the adsorption of lysozyme on Cibacron Blue-Sepharose CL-6B. The influence of process parameters as well as physical parameters on the chromatography process was investigated.

Adulthood outcome of tic and obsessive-compulsive symptom severity in children with Tourette syndrome

BACKGROUND: Tourette syndrome (TS) is a childhood-onset neuropsychiatric disorder that is characterized by both motor and phonic tics. One half to two thirds of children with TS experience a reduction or complete resolution of tic symptoms during adolescence. At least one third of adults with TS have comorbid obsessive-compulsive disorder (OCD). OBJECTIVES: To clarify the clinical course of tic an

The irreducible uncertainty of the demography–environment interaction in ecology

The interpretation of ecological data has been greatly improved by bridging the gap between ecological and statistical models. The major challenge is to separate competing hypotheses concerning demography, or other ecological relationships, and environmental variability (noise). In this paper we demonstrate that this may be an arduous, if not impossible, task. It is the lack of adequate ecological

High-risk melanoma susceptibility genes and pancreatic cancer, neural system tumors, and uveal melanoma across GenoMEL

GenoMEL, comprising major familial melanoma research groups from North America, Europe, Asia, and Australia has created the largest familial melanoma sample yet available to characterize mutations in the high-risk melanoma susceptibility genes CDKN2A/alternate reading frames (ARF), which encodes p16 and p14ARF, and CDK4 and to evaluate their relationship with pancreatic cancer (PC), neural system

SAGBI bases under composition

Polynomial composition is the operation of replacing the variables in a polynomial with other polynomials. In this paper we give a sufficient and necessary condition on a set Theta of polynomials to assure that the set F circle Theta of composed polynomials is a SAGBI basis whenever F is.

Tools for Autonomous Process Control

There is an ongoing trend towards higher automation level in process control systems. The purpose of a plant is to manufacture some product at a high production rate with a consistent quality, while minimizing the use of resources in terms of energy consumption, raw material and labor. With a higher degree of autonomy in the control system, it is possible to improve all these aspects, thus increas

The Duty to Protect: Gender in the Swedish Practice of Conscription

In this article, we turn first to a brief discussion of feminist contributions in the field of security, defense, and collective identity, and then argue that Swedish nationalism is tied to a particular form of collective identity formation through the practice of conscription. Drawing on Elshtain's notions of 'just warriors' and 'beautiful souls', we go on to spell out how women, historically, ha

The role of second-order probabilities in decision making

The importance, legitimacy and role of second-order probabilities are discussed. Two descriptive models of the use of second-order probabilities in decisions are presented. The results of two empirical studies of the effects of second-order probabilities upon the rank orderings of bets are summarized briefly. The bets were of three basic types and involved a wide variety of first- and second-order

A new dissolution microcalorimeter: calibration and test

A new batch microcalorimetric vessel for the determination of enthalpies of dissolution of small amounts of easily or slightly soluble solids was developed at University of Lund, Sweden and was tested at University of Porto, Portugal. The vessel forms part of a series of twin heat conduction microcalorimeters. In a series of consecutive dissolution steps up to four samples, each 0.1-3 mg, can be i

Selecting matched root architecture in tree pairs to be used for assessing N-2 fixation based on soil-(15) N-labelling

It is commonly assumed that soil-N-15-labelling provides reliable estimates of N-2 fixation in trees by matching N-2-fixing and non-N-2-fixing tree pairs. As root system is a key parameter in determining suitability of the tree pairs, we compared root architecture of Acacia cyanophylla Lindl. and Casuarina glauca Sieber ex. Spreng. (two N-2-fixing trees) with Eucalyptus camaldulensis Dehn. and Cer

Cadmium-induced effects on bone in a population-based study of women

High cadmium exposure is known to cause bone damage, but the association between low-level cadmium exposure and osteoporosis remains to be clarified. Using a population-based women's health survey in southern Sweden [Women's Health in the Lund Area (WHILA)] with no known historical cadmium contamination, we investigated cadmium-related effects on bone in 820 women (53-64 years of age). We measured

Aspects on coronary heart disease prevention in clinical practice

Prevention of first time disease or recurrence of coronary heart disease (CHD) is a major task for the health service. Guidelines regarding CHD prevention have been issued but studies have shown that treatment goals are inadequately met in clinical practice and there is urgent need for improved methods of implementation of guidelines. There is also a need for better risk stratification tools in or