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This study focuses on quantitative long-term effects of SupplementalInstruction (SI) in terms of graduation and dropout rates. One of the main aimsof SI is to introduce students to effective study strategies and techniques. If SIis introduced at an early stage for new students in higher education, it shouldtherefore be expected that this action will promote timely graduation. This hasalso been ind

The immune system is of central importance to clear-off pathogens in order to keep an organism healthy. In vertebrates, the Major Histocompatibility Complex (MHC) is a genomic region that holds key genes involved in adaptive immunity and in particular in the antigen presenting process. The presentation relies on MHC class I (MHC-I) and MHC class II (MHC-II) molecules that are encoded by MHC-I and

Den boreala regionen innehåller 40% av jordens kol (C) som lagras i vegetation och mark med sina skogar som står för nästan 30% av den terrestra C sänkan. Boreala skogar upplever några av de snabbaste hastigheterna för klimatuppvärmning och ökningar i brandaktivitet, vilket hotar att släppa ut stora mängder av deras C reserver till atmosfären. Även om klimat och skogsbränder har stark kontroll öveThe boreal region contains 40% of the earth’s carbon (C) that is stored in vegetation and soils with its forests accounting for almost 30% of the terrestrial C sink. Boreal forests are experiencing some of the most rapid rates of climatic warming and increases in fire activity, threatening to release large amounts of their dense C reserves to the atmosphere. While climate and wildfire place strong

This paper presents an overview of animals depicted within the Swedish con-cession area of Gebel el-Silsila and Shatt el-Rigal, spanning the Prehistoric to the early Islamic period. It includes commentaries on stylistic, technical and chronological phases of the rock art, and present an overview of distribution patterns as well as a relative taxonomic morphology for the more frequent motifs. Main

Background: Colorectal cancer presents as emergencies in 20% of the cases. Emergency resection is associated with high postoperative morbidity and mortality. The specialization of the operating team in the emergency settings differs from the elective setting, which may have an impact on outcome. The aim of this study was to evaluate short- and long-term outcomes following emergent colon cancer sur

Aggrecan (ACAN) is localized in the intervertebral disc (IVD) in unique compartment-specific patterns where it contributes to the tissue structure and mechanical function together with collagens. The extracellular matrix (ECM) of the IVD undergoes degenerative changes during aging, misuse or trauma, which inevitably alter the biochemical and biomechanical properties of the tissue. A deeper underst

Popular Abstract in English The Andean region and the Amazon Basin of South America have been identified as regions of origin and the domestication of many plants. Some of the food crops from these regions such as potato and cassava, have gained global import¬ance, while the majority of food crops are hardly know outside their present area of cultivation. In the first part of this study, underutiBoth the nutritional and functional properties of starch are directly influenced by the molecular structure of its polymers: amylose and amylopectin. It is therefore important to have reproducible methods for quantifying the molecular size. In the first part of the thesis, the composition, crystallinity, degree of branching, morphological, thermal and pasting properties, and susceptibility of the

The extent of behavioral recovery following neural transplantation in part depends on the amount of surviving graft tissue. The main objective of this thesis was to study parameters affecting the survival of embryonic striatal and mesencephalic neurons in experimental models of Huntington's and Parkinson's disease. Firstly, we studied the survival and maturation of embryonic striatal neurons that

In this work, surface enhanced Raman spectroscopy (SERS) was combined with dielectrophoresis (DEP) to realize a controllable in situ detection method of enhanced Raman signals from molecules in suspension environment. Polymer beads coated with gold nanoparticles were prepared as SERS ‘hot spot’ substrates. Several DEP electrode designs were evaluated and the stripe electrode succeeded in manipulat

This article describes the master thesis work performed at LTH and concerns the process of designing and building a prototype that makes an Axis Communications stationary camera completely wireless. This will be achieved by incorporating a Wi-Fi and a suitable battery into a chassis design. The data transfer rates of wireless communication has only recently reached high enough levels to support h

Populärvetenskaplig sammanfattning Ska du flyga långt med de där vingarna? Vissa fåglar flyger långt, andra inte. Silvertärnorna flaxar med vingarna från Arktis till Antarktis medan pingvinerna använder vingarna för att simma och inte flyger alls. Eftersom att olika fåglar använder sina vingar på så olika sätt så har nämnda vingar anpassats efter vingbärarnas behov. Vissa studier har visat sambaAbstract Bird wings are adapted to the needs of the birds and bird wings therefore differ between species, but also between ages and sexes. In this thesis, an interspecific analysis investigating relations between measurements of wing shape for birds within the Sylviidae-family, revealed strong connections between morphologically unrelated measurements. Long distances (compared to the wing length

Brain diseases’ despair “Please save my grandma!” A rather saddening expression to hear is it not? This is a sentence that not a lot of people say every day, maybe once or twice in one’s lifetime for most of us. Imagine this, your beloved grandma who has been by your side ever since you were born suddenly becomes senile. Her memory gets worse by the day and before you even know it, she does not r

Introduktion: Bedömning av narrativ förmåga ger viktig information om funktionell kommunikation. Ett bedömningsinstrument som kan lämpa sig för äldre barn och kan ge underlag för analys av narrativ mikrostruktur är Expression, Reception and Recall of Narrative Instrument (ERRNI). Studiens syfte var att utforska ERRNI och fyra mikrostrukturella mått i en svensk kontext. Metod: En deskriptiv och korIntroduction: Assessing narratives provides key insights into functional communication. An instrument which is appropriate for older children and can facilitate an analysis of narrative microstructure is Expression, Reception and Recall of Narrative Instrument (ERRNI). The purpose was to explore ERRNI and four microstructural measures in a Swedish context. Method: A descriptive correlational desi

Den svenska elkonsumtionen och elproduktionen förväntas öka drastiskt de närmsta åren. Detta ställer krav på elnätet som därmed behöver stärkas och byggas ut för att tillvarata den el som förväntas. Parallellt med detta behöver den gröna omställningen av industrisektorn påskydas om EU ska lyckas uppnå klimatmålen till 2050. För att dekarbonisera industriella processer kan grön vätgas användas. GenThe expected increase in both consumption and production of electricity strains the Swedish electricity grid, necessitating both reinforcement and expansion. Concurrently, the need to decarbonise heavy industry is becoming more urgent to achieve the EU Climate neutrality goal by 2050, with hydrogen anticipated as a key player. Hybrid energy systems that combine the generation of renewable electric

It is widely recognised that the two major challenges of the 21st century are climate change and poverty. The building sector is responsible for over a third of all global carbon dioxide emissions. At the same time, we see vastly overcrowded and rapidly growing informal settlements in developing countries, where people lack the basic right to decent shelter. This is simply not sustainable and forc

As energy demand increases worldwide, the interest in hydrogen has increased as well. Hydrogen is an excellent energy source and an essential component in large industries such as oil refineries, ammonia production plants and methanol synthesis plants. To produce hydrogen, steam methane reforming process is used where methane (CH4) and steam (H2O) is converted to carbon monoxide (CO) and hydrogen

Sidi Bouzid, Tunisia is an inland governorate in Tunisia that has undergone a rapid agricultural and urban development since the Tunisian independence in 1952 from being a rural and largely nomadic region into a hub of irrigated agriculture. In 2010 Mohamed Bouazizi sparked the Tunisian revolution by lighting himself on fire int he city of Sidi Bouzid, with some blaming the inequality and water sc