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Cultural evolution and archaeology : Historical and cultural trends

The 10th Nordic TAG conference fell together with the 150th anniversary of the publication of Charles Darwin’s seminal On the Origin of Species as well as the 200th anniversary of his birth. Over the last 15 years a new theoretical discourse on the use of evolutionary theory in archaeology has emerged, but this has largely bypassed the Scandinavian countries, despite the fact that Scandinavian arc

Climatised Moves : Climate-induced Migration and the Politics of Environmental Discourse

Popular Abstract in English Climate migration has become an iconic topic in international climate politics and policy. This work, combining political ecology, critical security studies and post-foundational theories, traces the changes of conflicting discourses across time and space, and assesses the different forms of security they interpellate. While initially attracting attention as a securityThis work seeks to de-naturalise climate-induced migration (CM). Combining political ecology and post-foundational theories, I read CM as a construct that reifies a series of phenomena into an issue to be researched and governed. By assessing the narratives, the knowledge, the logics and imaginaries on which conflicting discourses are built, I analyse the strategies of government they envision. I

Two new species of Teloschistes Norman: T. inflatus and T. arabicus and notes on the Teloschistes flora of Africa.

Two new African species of Teloschistes are described: T. arabicus Frödén sp. nov. and T. inflatus Frödén sp. nov. T. arabicus is a montane species, occurring in the southern parts of the Arabian peninsula and the adjacent parts of eastern Africa. T. inflatus is only known from South Africa, and was previously included in T. perrugosus Müll.Arg. Useful characters for distinguishing the misundersto

An ultrasonic method for detection of fluid properties in the paranasal sinuses

We propose a method for detection of the degree of infection in the paranasal sinuses utilizing a previously published method whereby the viscosity in a sealed container may be measured using an ultrasound Doppler method. As ultrasound propagates in a liquid medium, due to attenuation, the resulting pressure gradient will cause the liquid to move in the propagation direction - the wellknown effect

Reactive Sintering of Cu-Al, Ni-Al and Ni-Ti Powder Mixtures

Intermetallic compounds are a distinct group of materials having attractive properties and wide applications. In the present work, the formation of intermetallic compounds from elemental components in Cu-Al, Ni-Al and Ni-Ti systems has been studied. Metallic powders were mixed in stoichiometric ratios corresponding to CuAl2, NiAl and NiTi. Calorimetric studies were made using compacted disks as we

Filtering and Wavelet Regression Methods with Application to Exercise ECG

Popular Abstract in Swedish Signalen som registreras under ett arbets EKG prov kan innehålla viktig information rörande hjärtats kondition. De störningar som ofta uppträder i signalen kan dock försvåra en korrekt diagnos. I avhandlingens första del används tidsserie modeller för att skatta profilen, den del av signalen som härrör från hjärtats elektriska aktivitet. Målet med dessa metoder är att The analysis of the recorded electrical activity of the heart during an exercise test is a valuable method for investigating a patient's circulatory and respiratory system. But the disturbances that occurr during a test often make it difficult to interpret the signal in order to detect changes evoked by the increased workload and related to for instance coronary artery diseases. Suppression of dis

Microbial Treatment of Heavy Metal Leachates

Ore-mining, metallurgy and other industrial activities represent the source of heavy metal and radionuclide contamination in terrestrial and aquatic environments. Physico-chemical processes are employed for heavy metal removal from industrial wastewater. However, limitations due to the cost-effectiveness and the use of contaminating reagents make these processes not environmentally friendly. Biot

Minimal Solutions for Panoramic Stitching with Radial Distortion

This paper presents a solution to panoramic image stitching of two images with co- inciding optical centers, but unknown focal length and radial distortion. The algorithm operates with a minimal set of corresponding points (three) which means that it is well suited for use in any RANSAC style algorithm for simultaneous estimation of geometry and outlier rejection. Compared to a previous method for

Numerical methods for homogenization of Maxwell's equations

When the wavelength is much larger than the typical scale of the microstructure in a material, it is possible to define effective or homogenized material coefficients. Two numerical methods for the determination of the homogenized coefficients are compared. Numerical examples, where extreme properties of the effective material are achieved in the two dimensional case, are presented

Breast cancer and breastfeeding: collaborative reanalysis of individual data from 47 epidemiological studies in 30 countries, including 50 302 women with breast cancer and 96 973 women without the disease

Background Although childbearing is known to protect against breast cancer, whether or not breastfeeding contributes to this protective effect is unclear. Methods Individual data from 47 epidemiological studies in 30 countries that included information on breastfeeding patterns and other aspects of childbearing were collected, checked, and analysed centrally, for 50 302 women with invasive breas

Automatic Text-to-Scene Conversion in the Traffic Accident Domain

In this paper, we describe a system that automatically converts narratives into 3D scenes. The texts, written in Swedish, describe road accidents. One of the program’s key features is that it animates the generated scene using temporal relations between the events. We believe that this system is the first text-to-scene converter that is not restricted to invented narratives. The system consists of