Sökresultat

Popular Abstract in Swedish None.This thesis presents numerical investigations and simulations of fixed bed combustion of wood, models for predicting thermal radiative properties of particles and gases related to the combustion of wood, and a review of heat load calculations in gas turbines. All subjects have a common factor in thermal radiation. One 2D and one 3D model were considered for the fixed bed combustion. The introducto

In this correspondence, we examine a low-rate turbo coding. scheme based on superorthogonal convolutional encoders (SOCEs). The low-rate coding is suitable for code-division multiple-access (CDMA) applications. We use the property that the component encoders are equivalent to conventional convolutional encoders to analyze the asymptotic performance. We analyze the iterative decoding performance th

The Galactic Bulge has long been assumed to be a largely old stellar population. However, some recent studies based on observations with the HST WF/PC-1 and WFPC2 of stars in the Galactic Bulge have concluded that the old population may not make up more then 30% of the total. Other studies using HST/WFPC2 differential studies of `Bulge' globular clusters and field stars have found the bulge to be

Although sufficient androgen receptor (AR) function is crucial for normal male sexual differentiation, single-point mutations in the AR gene are infrequent in the two most common male congenital malformations, hypospadias and cryptorchidism. Because polymorphic CAG and GGN segments regulate AR function, we investigated whether there was any association between these polymorphisms and mentioned mal

Thirty nine infants with severe asphyxia (28 affected perinatally and 11 later) were studied by electrophysiological cerebral function monitoring (CFM) for periods varying from a half to 49 days. Nineteen infants died while still in intensive care and two died later from sequelae. Eighteen survived and were followed up when aged between 8 and 36 months. The initial electroencephalogram (EEG) and t

What we can conclude from this study is that the state and the market are not perfect substitutes in allocating resources and sustaining economic development separately. The case of the Thai cassava industry seems to suggest that the Thai state is not benevolent, but predatory in nature. The central point is that the Thai state cannot be simply seen as weak and predatory without understanding the

Objective:To study the effect to recommend no snacks vs three snacks per day on 1-year weight loss. The hypothesis was that it is easier to control energy intake and lose weight if snacks in between meals are omitted.Subjects/Method:In total 140 patients (36 men, 104 women), aged 18-60 years and body mass index>30 kg/m(2) were randomized and 93 patients (27 men, 66 women) completed the study. A 1-

Background. Increased levels of nitric oxide (NO) and the exudations of plasma proteins to the airway lumen have both been considered characteristics of airway inflammation. The aim of the present study was to investigate a possible relationship between nasal NO concentrations and acutely induced exudative inflammation of the nasal mucosa. Methods: Twelve healthy non-allergic subjects participated

Popular Abstract in Swedish Mängden och kvaliten på avfall förändras när intresset för resurserna i avfallet ökar. Ett omhändertagande av avfall med sortering, återvinning, förbehandling och utnutjande av energi producerar nytt avfall. En del hamnar på deponin. En möjlig följd är att det organiska materialet som deponeras minskar. En annan är att avfallet blir torrare. Framförallt inom EU finns deWhen attention is drawn to the recovery of resources within waste, the amount and types of waste disposed of at landfills change. A waste management system based on separate kerbside collection, sorting, recycling, and pretreatment with material and/or energy recovery produces new residues, which finally end up at landfills. This is the case in, for example, the US and the EU. As a possible result

Popular Abstract in Swedish Glatt muskulatur ingår i flera fysiologiskt viktiga organsystem och är involverade i flera sjukdomsprocesser. Glatt muskelkontraktion regleras av variationer i intracellulärt calcium; höjda nivåer aktiverar kinaset MLCK som fosforylerar myosin och initierar kontraktion. Myosin fosfatas (MLCP) avfosforylerar myosin vilket leder till relaxation. Flera intracellulära signaSmooth muscles are components of several physiologically important organs and often involved in disease. Smooth muscle contraction is regulated by variations in intracellular [Ca2+]; increased levels activate the myosin light chain kinase (MLCK) which phosphorylates myosin and initiates contraction. Myosin phosphatase (MLCP) dephosphorylates myosin and promotes relaxation. Several cellular signali

Popular Abstract in Swedish För en god matematisk beskrivning av oregelbundenheten hos verkliga havsvågor måste ett statistiskt synsätt tillämpas. Med tanke på t.ex. design av konstruktionselement i marin teknik är framför allt kännedom om våghöjdens variation, eller med statistisk terminologi, dess fördelning, högst väsentlig. Insamlade mätdata utgör grunden för en realistisk analys; i kombinatioAn important problem in ocean engineering is to find distributions for characteristic wave parameters. For wind-generated water waves at deep water, a Gaussian distribution for the wave-surface elevation is considered a reasonable model. Within the Gaussian assumption, extensions of Rice's formula can be applied to formulate explicit expressions for the distributions in the ergodic, or Palm, sense

In an engineering treatment of the rotation of a layer or hot gas emerging from under a balcony Morgan and Marshall [l] introduced the concept of a horizontal Equivalent Gaussian Source for the resulting vertical plume. They found it necessary to suppose that in the rotation the entrainment was more than 5 times the amount to be expected using conventional entrainment coefficients for vertical plu

Popular Abstract in Swedish Syftet med denna avhandling har varit att försöka avslöja omständigheter och faktorer som hänger samman med att kvinnor fortsätter respektive slutar att röka och att bidra med kunskaper om vilka rökare som är mest sårbara när det gäller risken för att drabbas av hjärtinfarkt. I den officiella sjuk- och dödsorsaksstatistiken framgår det att risken för hjärtinfarkt minskThe aim of this thesis has been to explore factors associated with smoking and smoking cessation in women and the relation between smoking and incidence of myocardial infarction (MI). The time trends in incidence of MI 1986-2002 in the city of Malmö (pop. 250.000) were explored. It showed declining incidences in men and older women, but not in women below 65 years of age. The high prevalence of s

Popular AbstractVad vet vi egentligen om maten vi äter? Vem producerar den och var kommer den ifrån? Hur vet vi att vi inte blir sjuka av den? Är svenskt kött bättre än annat kött? Varför väljer en del konsumenter att handla mat i gårdsbutiker eller på grönsaksmarknader istället för i butik? Frågorna kring maten är många. Avståndet mellan producent och konsument är idag stort och innan råvaran harThis dissertation takes up the consequences of the transition from a traditional to a modern food system. According to some researchers, the modernization of food production has led to a crisis of confidence in today’s food system and consumers are said to experience alienation, gastro-anomie, and distrust towards food products (see Murcott, Mennell & Van Otterloo 1992; Fischler 1980; 1988). P

Objectives: Scarring caused by trauma, postcancer treatment, or inflammation in the vocal folds is associated with stiffness of the lamina propria and results in severe voice problems. Currently there is no effective treatment. Human embryonic stem cells (hESC) have been recognized as providing a potential resource for cell transplantations, but in the undifferentiated state, they are generally no

Popular Abstract in Swedish Det övergripande syftet med den höär studien är att bidra till ökad förståelse för barns lärande och meningsskapande i skolan när pedagoger försöker överskrida ett mer traditionellt arbetssätt genom att förena estetik och rationalitet i läroprocessen. Avsikten är att beskriva och tolka avd som utspelar sig i samtal mellan barn och pedagoger när barn förväntas lösa probeThe overiding aim of this study is to promote an increace in the knowledge regarding school children´s learning and meaning construction, whereby teachers attempt to exceed traditional ways of learning by combining asthetics and rationality as an integration of the learning process. The aim is to describe and interpret that which occurs in discussions between teachers and the children, when the ch

Ozone is found to exhibit substantial site-selective fragmentation when its fragment ions are collected in coincidence with energy selected electrons. We find a preferential production of the O-2(+)/O+(O+/O+) ion pair upon ionization of the terminal (central) oxygen Is electron. Depending on the hole localization, Auger rates are different towards the various final states of the dication, which wo

The atomic structure of 0.5 monolayer (ML) Co deposited on Pt(110) was investigated by quantitative low-energy electron diffraction and ab initio density functional theory calculations, showing a pronounced inward relaxation and a filling of the missing-row sites of the Pt(110) substrate by Co atoms. Up to this Co coverage no significant intermixing of Pt atoms with Co atoms was observed by scanni