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Vectoring is a vital component of wideband wire- line communication systems. A disorderly leaving event (DLE) disturbs the vectoring operation since the precoder, which was designed for the channel before the change, is no longer up to date. Measurements indicate that the impact of a DLE can be serious for frequencies beyond 30 MHz, which corresponds to the band used by emerging wideband communica
In the developed countries the public expect society to be prepared for, and step in, if something out of the ordinary happens. This public pressure appears to have increased the demand for crisis preparedness planning. In crisis management the local authority serves as the first line of defence and will more or less always be involved in responding to crises. It is therefore important to study ho
Popular Abstract in Swedish Avhandlingen omfattar tillverkning av metallmatris kompositer, MMC, baserade främst på aluminium legeringar. Nya metoder är utvecklade och undersökta där infiltrationen av fiberstrukturer av aluminiumoxid är stimulerad av mekaniska vågor vid frekvenser upp till 7 kHz. Vågrörelserna är genererade med nyutvecklad hög-magnetostriktiv aktuatorteknik. Målet med studierna harThe implementation of highly magnetostrictive wave-actuator techniques in preform infiltration processes for metal-matrix composite production is described. Metal matrix materials require additional methods to handle the content, shape and position of the ceramic reinforcements, which are not required for metal alloy casting. Commercial fabrication of advanced metal matrix composite products has
CYLD is a deubiquitination enzyme that regulates different cellular processes, such as cell proliferation and cell survival. Mutation and loss of heterozygosity of the CYLD gene causes development of cylindromatosis, a benign tumour originating from the skin. Our study shows that CYLD expression is dramatically downregulated in basal cell carcinoma (BCC), the most common cancer in humans. Reduced
Popular Abstract in Swedish Tumörer uppstår då celler i kroppen plötsligt börjar växa och dela sig obehindrat. Tumöromvandlingen är ett resultat av mutationer i cellens gener som kontrollerar hur celler tillväxer och differentieras. Sådana gener kallas för onkgener och suppressorgener. Tumörer som respekterar sin omgivning kallas för benigna men så snart de börjar växa invasivt in i omkringliggandNatural killer (NK) cells and T lymphocytes are the major effector cells that can recognize and kill tumor cells. NK cells have a constitutive cytotoxic activity and kill a wide spectrum of tumor cells while T cells recognize specific tumor antigens and need to be activated through their TCR to differentiate into cytotoxic T lymphocyte (CTL) killers or T helper cells. Interleukin-2 is the principa
Popular Abstract in Swedish I ett väderälskande land som Sverige finns det väl ingen som inte är bekant med den väderkarta som ger oss information om hur prognosen för den närmaste tiden ser ut? Många av oss tittar dagligen på väderrapporten och låter den hjälpa oss att bestämma om vi ska cykla eller ta bussen, sätta på grillen eller laga mat i ugnen. Genom enkla visualiseringar i form av sol, regWith the aid of modern computer technology the application of visualization and simulation technology has become increasingly important in today’s society. Through computer modelling it is possible to experience, understand and explore environments, systems or objects in two or three dimensions and to see, hear and sometimes tangibly feel them. It may be environments or objects that do not yet exi
Popular Abstract in Swedish Avhandlingen När tidningarna blev moderna – om svensk journalistik 1897-1969 syftar till att öka kunskapen om några av de fenomen som ingick i den svenska 1900-talsjournalistikens utveckling och expansion. Även om den svenska journalistiken naturligtvis moderniserades i olika steg, och flera av dem togs redan under 1800-talet, så infaller viktiga delar av denna modernisThe aim of the thesis is to increase the knowledge of some of the phenomena involved in the development and expansion of Swedish journalism in the 20th century. This is done primarily by research into the works of three major newspapermen, but also by studies of seven Swedish dailies’ reporting of nine labour market conflicts. The three newspapermen are C. G. Tengwall (chapter 1), Ewald Stomberg (
Macrophages play an essential role in the defense against infection by phagocytosis and by production of inflammatory mediators. Such mediators are TNF? and eicosanoids. Many microbial agents elicit arachidonate release in macrophages that lead to the formation of eicosanoids. This thesis is based on studies performed with the use of microbial constituents which induce arachidonate release or/and
To be able to cover future needs, in regards to urbanization and an increasing population, the construction industry must to a greater extent meet demands. One way to increase the production rate is by increasing the level of prefabrication and industrial building. If the industry had become better at learning from past mistakes, it would have given a greater opportunity to streamline processes, m
This thesis critically examines the experiences of young artists in Cambodia’s music industry with regard to their experiences of incorporating traditional instruments and genres into music-making processes. The investigation is based on a case study of an original music band known as SmallWorld SmallBand, which is one of the leading bands in Cambodia. Most songs produced by this band are contempo
Salinisation is a global issue which leads to desertification and soil degradation and exposure to salt is also known to inhibit microbial activity and plant growth. This study was conducted to determine the influence of salinity on microbial activity of a non- saline soil. By using Salt Induced Community Tolerance (SICT) concept I found that microbial community tolerance to salt can be induced in
This master’s thesis project report deals with the design of multiplier for the reference signal to the Phase Locked Loop (PLL) used in WLAN application. The reference multiplier designed is based on a newly proposed architecture of dual loop feedback Delay Locked Loop (DLL) in which multiplication is performed within the loops. To lock the DLL, input signal is required to be delayed only for threKamal Kumar Gupta DLL Based Reference Multiplier for the use in a PLL for WLAN applications In modern wireless communication system, a frequency synthesizer/multiplier is one of the main building blocks of the system. For on-chip application, a frequency synthesizer is used as local oscillator (LO) to generate precise frequency from a single base frequency source, usually a crystal oscillator. Th
Syftet med detta arbete är att ta reda på vad som motiverar byggherrar att välja mer hållbara och framtidssäkra lösningar. Genom att identifiera de trender som byggherrarna känner är mest relevanta samt ta reda på vad de skulle kunna tjäna genom att agera mer hållbart ur de olika hållbarhetsperspektiven kan man hitta de drivkrafter som finns för att bygga mer hållbart. Dessa insikter kan sedan genThe purpose of this study is to find out what motivates developers to choose More sustainable solutions. By identifying trends that are most relevant for developers and find out what developers could gain by acting more futureoriented from the three perspectives of sustainability this study aims to find out what drives developers to build more sustainably. These insights can by comparison with the
The EU cohesion policy is a key policy area of the Union which aims for sustainable development and socioeconomic growth in the regions of the Member States. However, in the current structure of the multi-level governance system, the EU is much reliant on the capacity of the national public administrations to execute and implement the cohesion policy and thereby achieve the intended EU policy obje
It is relatively easy to know the day to day traffic flow on a highway without taking into account on which lane the cars are driving on. It is more difficult to understand how traffic over time evolves while looking at the lanes, or more specifically, by looking at traffic volume on the specific lanes on a highway, can we have a good guess for where the vehicles should be on a different lane of t
Förhindra antibiotikaresistens – börja övervaka den! För snart hundra år sedan upptäcktes penicillin – ett antibiotikum som sedan dess har räddat miljontals människor från bakterieinfektioner. Idag ser vi hur antibiotika blir helt verkningslösa då bakterierna i ökande takt utvecklar resistens mot dem. Inom en snar framtid kan vi befinna oss i en era där vi återigen dör av infektioner som tidigar
The overall aim of this thesis was to elucidate fathers’ experience of becoming parents of a pretermborn infant as well as their experience in the years after their infant’s birth. A further aim was to describe the context of neonatal care by investigating trends in outcome during a ten-year period in the southern region of Sweden. In total twenty-one fathers were interviewed at three different ti
INTRODUCTION Stroke is a serious neurological disease which may lead to death and severe disability [1, 2]. There are two major types of stroke: ischemic and hemorrhagic stroke. Both are associated with disruption of blood flow to a part of the brain with rapid depletion of cellular energy and oxygen, resulting in ionic disturbances and eventually neuronal cell death [3]. The pathologic process t
Star clusters can harbour many exotic objects, including black holes (BHs), X-ray binaries and blue straggler stars. In dense stellar environments like globular clusters (GCs), two-body relaxation drives their dynamical evolution, where gravitational interactions between stars strive to equalize their kinetic energy in the cluster. Theoretical studies have indicated that some of these clusters can
