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On the QoS tree construction in WiMAX mesh networks based on genetic algorithm approach

We study the influence of tree's depth and nodes' fan-out on the performance of WiMax mesh networks. For a given tree topology, we first analytically obtain per-node delay and per-node throughput. Then among plenty of tree topologies, extractable from a given network's graph, we search feasible trees which fulfil some per-node and network QoS requirements. Since the searching space is potentially

Brain Tumors: Evaluation of Perfusion Using 3D-FSE-Pseudo-Continuous Arterial Spin Labeling

In this chapter, the advantages and disadvantages of 3D fast spin echo (FSE) pCASL as a measure of brain tumor perfusion are reviewed. In addition, we compare pCASL with other perfusion techniques and discuss future ASL approaches. A prospective study of 28 patients with contrast-enhancing brain tumors was performed at 3 T using dynamic susceptibility contrast (DSC) MRI and pCASL. The visual quali

Intestinal barrier function in health and disease

Popular Abstract in Swedish Tarmslemhinnans förmåga att ta upp olika näringsämnen från tarmen är essentiell för vår överlevnad men den utgör också en viktig skyddsbarriär mellan tarminnehållet och blodbanan. Tarminnehållet består till stor del av bakterier och ej nedbrutna födoämnesmolekyler vilka kan ge upphov till patologiska tillstånd om de passerar tarmväggen. Ökad kunskap om tarmens funktion The intestinal epithelium has the dual function of absorbing nutrients and water as well as being a barrier to potentially harmful substances such as macromolecules and bacteria. In the present thesis the barrier function of the intestinal mucosa was studied in vitro in Ussing diffusion chambers. Intestinal permeability to different-sized molecules was investigated and compared in various intesti

Sustainable Development In Practice - Infrastructure for the third generation mobile telephone system in Sweden

The infrastructure for the third generation of mobile telephony, UMTS, is under construction in Sweden. Within three years four operators were to build competing systems to cover 99,98 % of the population. The case of the 3G infrastructure illustrates how the sustainability issues are handled in planning and environmental management, with conflicting goals between institutional levels and compet

Nutritional Assessment in a Rural Area of Bolivia. A Study of Zinc and Iron Deficiencies and Bioavailability

Popular Abstract in English Malnutrition and micronutrient deficiencies continue to be a major health problem, especially in rural areas in developing countries. It is of great importance to have reliable data about the existing deficiencies, and also about their main causes, for the designing and developing of efficient nutritional strategies in order to overcome nutritional problems. Bolivia is While originally, protein-energy deficiency was considered the main factor of malnutrition, it is now understood that micronutrient deficiencies play a fundamental role in a variety of health and disease outcomes. Zinc and iron deficiencies are still highly prevalent in low-income countries, whereas insufficient intakes and diets with low mineral absorption are the major causes. Sustainable and fe

Human fetal cerebral circulation - Perinatal Doppler velocimetry and fetal pulse oximetry studies

Popular Abstract in Swedish En majoritet av sk förlossningsskador med tecken på syrebrist i hjärnan uppstår troligen inte i samband med förlossning utan inträffar under graviditeten, ofta av okänt ursprung. Förlossningen är dock en stressituation med ökat krav på god blod- och syretillförsel till fostret. Övervakning med kardiotokografi (CTG) under förlossningen har inte påtagligt förändrat antaleThe studies upon which this thesis is based were designed to evaluate normal fetal and neonatal adaptation and the effects of obstetrical interventions during labor and delivery on fetal and neonatal cerebral circulation. Non-invasive Doppler ultrasound was used to record blood flow velocities from the middle cerebral artery (MCA) both antenatally from the fetus, and from the newborn in the early

Some effects of maternal anxiety on the fetus and on pregnancy outcome

The aim of this thesis was to study maternal emotional impact on the fetus and on pregnancy outcome. The thesis comprises five papers, which emanate from a prospective study regarding life situation, the experience of pregnancy, anxiety (Spielberger State-Trait Anxiety),and life events in nulliparous women, conducted in Malmö during 1988-1989. Examinations of fetal hemo-dynamics, fetal movements,

Evaluation of in-car speed limiters – Field study

MASTER (MAnaging Speeds of Traffic on European Roads) aims to provide recommendations for speed management strategies and policies and to elaborate guidelines for the development of innovative speed management tools. Within the framework of the project, field trials with a car equipped with a speed limiter were carried out in three “regional typical” European countries: Sweden, the Netherlands, an

Fria varurörelser i den Europeiska gemenskapen. En studie av gränsdragningen mellan gemenskapsangelägeheer och nationella angelägenheter.

Popular Abstract in Swedish EG-fördragets regler om varors fria rörlighet är ett centralt område inom de Europeiska gemenskapernas rättsordning. Detta rättsområdet har stor betydelse i det praktiska rättslivet, såväl för offentlig förvaltning som för enskilda företag. I denna bok behandlas spörsmål rörande EG-fördragets regler om icke-tariffära handelshinder (artiklarna 30, 34 och 36). Ända sedanThis thesis concerns the Articles 30, 34 and 36 of the EC-Treaty and conflicts of competence between the Community and the Member States. It deals especially with the delimitation between community concerns and national concerns in the field of non-tariff barriers to trade in community law. A new perspective concerning the application of Articles 30 and 34 of the EC-Treaty is introduced. It is arg

Law and participation

The issue of participation is of interest to scholars in law because of its relation to new forms of governance and regulation (Black 2000, 2001; de Burca and Scott 2006). Empirical studies of participation in biotechnology licensing show however that such procedures “itself may cause serious trouble when it is embedded in a formal procedure with a relatively strong legal framework.” (Bora & H

Interacting Compact Binaries: Modeling Mass Transfer in Eccentric Systems

We discuss mass transfer in eccentric binaries containing a white dwarf and a neutron star (WD-NS binaries). We show that such binaries are produced from field binaries following a series of mass transfer episodes that allow the white dwarf to form before the neutron star. We predict the orbital properties of binaries similar to the observed WD-NS binary J1141+6545, and show that they will undergo