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Tissue Perfusion and Oxygenation Evaluated by Measurements of Tissue Gases and pH. An Experiemental Study.

Optimum peripheral perfusion, oxygenation and oxygen utilization is a prerequisite for normal wound healing, resistance to infection and cardiac function. The purpose of this study was to evaluate peripheral oxygen utilization by measurements of subcutaneous tissue gases and pH (PscO2, PscCO2 and pHsc) in comparison to established techniques for measurements of periph-eral tissue oxygenation and o

MAP criterion trellis source coding for short data sequences

New trellis constructions for compression of short data sequences are presented. Traditional low rate trellis source coding suffers from having a too small a reproduction alphabet. Governed by alphabet-constrained rate-distortion theory we propose a simple method which for a source coding rate of 1 bit per sample allows 2n reconstruction values for a trellis with 2n states. The proposed method is

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On the early history of card-playing with particular reference to John of Rheinfelden's treatise

Auroral electrojet predictions with dynamic neural networks

Neural networks with internal feedback from the hidden nodes to theinput [Elman, 1990 are developed for prediction of the auroralelectrojet index AE from solar wind data. Unlike linear and nonlinearautoregressive moving-average (ARMA) models, such networks are free todevelop their own internal representation of the recurrent statevariables. Further, they do not incorporate an explicit memory for p

Some exact union bound results for maximum likelihood detection in MIMO systems

In this paper we investigate some properties of the union bound for a basic MIMO system, assuming uncoded QAM transmission, uncorrelated Rayleigh fading, and maximum likelihood detection. The presented union bound results cover several choices of the number of transmitting and receiving antennas (up to 16). It is also illustrated how the pair-wise error probability approaches the Q( )-function as

Behaviour of Pine Sawflies in Relation to Pheromone-Based Pest Management

Popular Abstract in Swedish Hur man studerar kommunikation hos tallsteklar Totalt finns det cirka 125 beskrivna tallstekelarter i världen. De tillhör gruppen växtsteklar, och deras larver lever vanligen av tallbarr. Larvernas härjningar kan medföra att träden växer sämre eller rent av dör. Den färdiga stekeln äter inget, utan är helt inriktad på att para sig under sitt 10 –15 dagar korta liv i skPine sawflies (Hymenoptera: Diprionidae) are severe pine defoliators. This thesis investigated sawfly behaviour related to the use of pheromones in integrated pest management, including monitoring with pheromone traps and mating disruption. Neodiprion sertiferr females were placed on pine twigs in the field and 11–30 % of the females that remained on their twig after the first mating re-mated. Onl

Venting and Gossiping in Conflicts: Emotion Expression in Ultimatum Games

Conflicts often lead to expression of emotion to unrelated parties. We study non-instrumental emotion expression in binary ultimatum games, where receivers can express emotion either privately or to a third-party audience prior to accepting or rejecting the offer. The possibility of emotion expression to an audience increases welfare, but this is driven by senders behaving more fairly rather than

Balance in Single-limb Stance in Healthy Subjects - Reliability of Testing. Procedure and The Effect of Short-duration Sub-maximal Cycling

Background: To assess balance in single-limb stance, center of pressure movements can be registered by stabilometry with force platforms. This can be used for evaluation of injuries to the lower extremities. It is important to ensure that the assessment tools we use in the clinical setting and in research have minimal measurement error. Previous studies have shown that the ability to maintain stan