Sökresultat

Genom osteohistologiska analyser kan stora mängder information erhållas. Förutom möjligheten att uppskatta åldern och mognadsgraden hos ett djur kan tillväxtsmärken i skelettet, så kallade ’growth marks’ eller GM, också innehålla information om benens tillväxtshastighet, djurets tillväxtstrategi och till och med levnadssätt. Denna studie avhandlar histologin hos fossiliserade ben tillhörande en haOsteo-histology provides information on age, growth strategies, and lifestyles of both recent and ancient animals. This study deals with the histology of fossilized bone from three groups of tetrapods – sea turtles, ichthyosaurs and plesiosaurs – all secondarily adapted to marine life, but with rather different bone microstructures. As a result of extensive vascularization (i.e. osteoporosis), ich

Building materials account for a high percentage of the non-land cost of self-help housing. Few studies, however, have examined the use of building materials by self-help builders and the practicalities of producing and distributing the materials in an alternative manner. This paper discusses the nature of construction by self-help in the intermediate-sized Colombian city of Pereira, focusing in p

This article is based on anthropological fieldwork undertaken at two elite universities in Beijing. It addresses the paradoxical situation of the many instances of suicide among Chinese elite university students in Beijing, which constitute a public secret. The pressure of education weighs heavily on the shoulders of China’s only child in each family, known as the generation of little emperors and

For the Inner Tracking System 3 (ITS3) upgrade, the ALICE experiment at CERN requires monolithic active pixel sensors of dimensions up to 97 mm×266 mm, occupying a large fraction of a 300 mm wafer. To manufacture such a wafer-scale device, larger than the single design reticle size, stitching is employed. The MOnolithic Stitched Sensor (MOSS) is a prototype silicon pixel sensor of 14 mm×259 mm siz

Water management is a critical factor for the performance and reliability of polymer electrolyte fuel cells (PEFCs) operating as energy generation systems. Inadequate operating conditions may lead to non-uniform water distribution, resulting in membrane dehydration or flooding of porous media, both of which adversely affect cell operation. In this work, a two-dimensional reduced-order model is dev

Musculoskeletal health is essential to health, well-being, and independence across the life course. Musculoskeletal conditions including inflammatory joint diseases, osteoarthritis, back pain, osteoporosis, and fragility fractures are among the greatest causes of disability globally imposing a major burden on health and social care and economic impact also through lost productivity. Despite effect

BACKGROUND: The aim was to improve the realism of patient models for Monte-Carlo based evaluation of image-based quantification of tumour volume and activity in [68Ga]Ga-DOTA-TOC PET and [177Lu]Lu-DOTA-TATE SPECT images.METHODS: Three phantoms from the XCAT population were used as basis. Tumour structures were obtained from segmentation of patient 68Ga-PET images and positioned at relevant positio

Lignins are a polymeric, renewable resource with remarkable structural diversity. Research is being conducted into the valorisation of lignins into value-added products. The absence of experimental libraries, in particular for process-modified oligomers, hampers analytical feedback to these valorisation efforts. Stochastic methods for generating libraries in-silico have been proposed, but were not

Lime-cement mixing is a method used for ground improvement of clay soils. Before mixing at a field site, laboratory samples are prepared and tested to decide the amount of lime-cement binder needed to reach the desired material strength. Strength measurements are not possible before a sample hardens, and the test process to predict final strength takes 30 days. Resistivity measurements are possibl

Populärvetenskaplig sammanfattning: Naturbetesmarkerna minskade med 86,7% från 1927 till 1990. Denna minskning är alarmerande eftersom många idag hotade och sällsynta arter är beroende av dessa. En stor del av anledningen till detta är att staten ända in på 1980-talet i sin rådgivning danade för att dessa marker antingen skulle bearbetas med konstgödsel och ogräsbekämpning eller planteras med trädThe rural landscape of Sweden has changed rapidly during the 20:th century. Measurements from 1927 compared to those from 1990 show that the area of non managed pasture in Sweden has declined by 86.7 %. Since a lot of threatened and rare species are dependent of this kind of land, these figures are alarming. During the last 30-40 years non managed pasture has declined due to abandonment, tree plan

The notion of human rights is built on the fact that they are universal rights and thus applies to everyone without exceptions. Despite this irregular workers are denied their labour rights and their human rights due to the fact that they are living in a country unlawfully. The states use methods as regularizing irregular migrants or enabling tougher sanctions against irregular migration in order

This paper concerns the Youth House, Ungdomshuset, and the struggle over it 2006-2008. Arguing that the protests after the eviction of the squatted house created collective identities that are paradigmatic in relation to other social movements and using social movement research combined with marxist human geography the paper investigates the relation of rhizomatic structures, urban material confli

This master thesis is a project initiated by the fourth-party logistics company UBQ. They aim to take over the management of the transportation and storage of raw material for Volvo Car Body Components, VCBC, in Olofström. VCBC wants to remove the storage of raw material in the production area. The thesis aims to link the both companies’ requests together by describing the current situation, the s

Dividing complex systems into smaller components that are easier for humans to comprehend and manage, is a wide spread method in software design. As systems grow more complex, the task of solving the different dependencies and constrictions of the various components in a system, and create a stable and valid composition naturally also gains complexity. Various tools have been constructed to manage