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On the asymptotic and approximate distributions of the product of an inverse Wishart matrix and a Gaussian vector

In this paper we study the distribution of the product of an inverse Wishart random matrix and a Gaussian random vector. We derive its asymptotic distribution as well as its approximate density function formula which is based on the Gaussian integral and the third order Taylor expansion. Furthermore, we compare obtained asymptotic and approximate density functions with the exact density which is o

Analysis of tracer molecules from organic aerosols - Application of liquid phase microextraction to aerosol analysis

Popular Abstract in English Airborne particulate matter is well known because of its adverse impacts on human health and its role in climate processes. In order to understand completely the role of aerosols in atmosphere, their chemical composition is of basic importance. Chemical analysis of aerosols involves broadly two steps, extraction step and detection/quantification of chemical constituentsAirborne particulate matter is well known because of its adverse impacts on human health and its role in climate processes. In order to understand completely the role of aerosols in atmosphere, their chemical composition is of basic importance. Chemical analysis of aerosols involves broadly two steps, extraction step and detection/quantification of chemical constituents. Generally aerosols are ext

Themes and challenges in developing sustainable supply chains

Sustainable development is one of the greatest global challenges facing human beings in the 21st century. In order to tackle sustainability related problems, several global, European, and national targets for 2050 have been set. The transition of supply chains activities towards sustainability targets calls for designing new strategies and continuously identifying and tackling the challenges that

Dispersion Relations in Scattering and Antenna Problems

This dissertation deals with physical bounds on scattering and absorption of acoustic and electromagnetic waves. A general dispersion relation or sum rule for the extinction cross section of such waves is derived from the holomorphic properties of the scattering amplitude in the forward direction. The derivation is based on the forward scattering theorem via certain Herglotz functions and their as

Immunohistochemical study of rats receiving peripheral immunization with IFNg transfected glioma cells

Popular Abstract in Swedish Vi har studerat hur man kan använda immunsystemet för att behandla råttor med hjärntumör (maligna gliom). Eftersom råttor väldigt sällan utvecklar hjärntumörer, så måste vi injicera tumörceller i hjärnan själva. Om djuren inte får någon behandling dör de vanligen inom ca. 24 dagar. Får de däremot en injektion i buken eller under huden på benet med genmanipulerade tumörcMalignant glioma is, with rare exceptions in younger adults, an uncurable brain tumor, as very few survive more than 1-2 years after diagnosis. Despite advances in recent years, current treatments such as surgery, radiotherapy and chemotherapy only prolongs the life of the patients. Because of the poor prognosis, several additional therapies have been investigated and are under development, such a

Using Eye Movements and Spoken Discourse as Windows to Inner Space

The purpose of this paper is to show how eye-tracking methodology can be used to study ‘inner space’; both from a theoretical point of view – the existence (or not) of internal image representations – as well as from an applied point of view – the usage of mental imagery in thinking and reasoning. First, we introduce the reader to the mental imagery debate. Second, we summarize studies on mental i

När samverkan får erkännande. Beskrivna och observerade erfarenheter från ungdomsvården

Tidigare forskning om samverkan visar att samarbete innefattar problem och konflikter. Syftet med denna studie är att istället beskriva mer framgångsrik samverkan även om denna utspelas under kortare interaktionsfrekvenser. I boken diskuteras forskning som analyserat framgångsfaktorer men framförallt analyseras ett eget empiriskt material med fokus på hur och när aktörerna inom ungdomsvården framsPrevious collaboration research shows that problems and conflicts sometimes arise as a part of collaboration. This book analyzes successful cooperation unfolding during shorter interaction sequences. In this study I endeavour to describe the contributing factors that are necessary to achieve the phenomenon of a successful collaboration. I do this partially with help from studies published in previ