Sökresultat

The performance of continuous time deltasigma modulators is limited by their large sensitivity to feedback pulse-width variations caused by clock jitter in their feedback DACs. To mitigate that effect, a dual switched- capacitor-resistor feedback DAC technique is proposed. The architecture has the additional benefit of reducing the typically high switched-capacitor-resistor DAC output peak current

The recent discovery of a topological phase transition in IV-VI narrow-gap semiconductors has revitalized the decades-old interest in the bulk band inversion occurring in these materials. Here we systematically study the (001) surface states of Pb1-xSnxSe mixed crystals by means of angle-resolved photoelectron spectroscopy in the parameter space 0 <= x <= 0.37 and 300 K >= T >= 9 K. Using the surf

There are many good practice examples in sustainable tourism, but the difficulty is how they can be transparently measured, monitored and disseminated. The study aims to develop a measurement system for good practice in sustainable tourism, meanwhile to make some contribution to the monitoring and reporting system. In order to accomplish this, the thesis allocates good practice examples into a Sus

In this thesis, pp collisions were simulated using PYTHIA. D+ D- and D0 D0bar balance functions were created in order to contribute with a reference point for future balance functions measured in real data from Pb-Pb collisions. Charm balance functions are important since the charm quark can act as a probe of the QGP, probing the first instances after a collision. The balance functions were create

Oats (Avena sativa) are part of the cereal whole grain family, and their production is on the rise for the past few years due to extensive research done on the health benefits it can provide to humans. ScanOats project in Sweden is one of the research groups across the world that has done extensive work on oats. The lines CT-BG-53, CT-BG-21, and CT-BG-37 are mutant lines harvested by Crop Tailor A

Sweden is the only Scandinavian country that uses closed treatment institutions based on coercive measures within the child welfare system, on a large scale, for the education and treatment of young criminal offenders and drug users. In Sweden there are in 2002 some 30 “homes for specialized supervision” of varying sizes and degrees of specialization – all run by a national board of institutional

This paper argues that there is a norm in the publication of quantitative management research that accepted hypotheses are conceived of as good hypotheses. This has far-reaching implications for quantitative research in that, in the worst case scenario, this norm encourages commonsensical research questions and manipulation of data in order for an article to be published. Naturally, such behavior

A 10-bit 5-MS/s successive approximation ADC cell and a 70-MS/s parallel ADC array based on this cell, designed and fabricated in a 1.2-?m CMOS process, are presented. The ADC cell was designed to have an input bandwidth of more than 35 MHz and a sampling time of 14 nS at a clock rate of 70 MHz. The parallel ADC array consists of 14 such cells which are timed in one clock cycle skew successively i

The aim of this thesis was to develop and apply self-registered and observed measures of physical function in people with arthritis in the lower extremity. In Paper I, 181 subjects from the Swedish Knee Arthroplasty Register who were satisfied with their primary knee arthroplasty were studied. 44% of the medical records included reports of pain in the replaced knee at the same time as the patient

During the last few years increased focus has been given to environmental and social issues due to worldwide changes in the weather and temperature, in some cases leading to natural disasters and dramatic changes in everyday life. Media and politicians have begun to address related problems, acknowledging the fact that human impact on nature is a real problem that poses as a threat to our future.

This paper adresses key issues of constructions and ideas of our social reality in relation to the international political organisation. Through constructivist analyses this paper highlights and contrast two identity contructions which are of great relevance for the European integration of today. By definig the main charachters of the persistant and condemning discourse of Balkanism and the young

Metal-halide perovskite semiconductors are certainly one of the hottest topic in solar energy conversion. Optimization of both the absorber material and device architecture has led to an astoundingly rapid increase in the reported device efficiencies. Initially developed in the context of dye-sensitized solar cell research, metal-halide perovskite devices now reach efficiency values and hence need

Development of single-molecule localization microscopy techniques has allowed nanometre scale localization accuracy inside cells, permitting the resolution of ultra-fine cell structure and the elucidation of crucial molecular mechanisms. Application of these methodologies to understanding processes underlying DNA replication and repair has been limited to defined in vitro biochemical analysis and

Regional climate and energy planning in Sweden has long been fairly weak. Starting in 2008, however, the regional administrative level was strengthened, when the County Administrative Boards (CABs) were commissioned to develop regional climate and energy strategies. Coordinating and involving various stakeholders in the strategy work was essential to the assignment. The process of developing these

Knee injury increases the risk of developing knee osteoarthritis (OA). Recent evidence suggests involvement of oxidative stress induced by inflammation and bleeding in the joint. This study investigates the role in this process of α1-microglobulin (A1M), a plasma and tissue antioxidant protein with reducing function, and heme- and radical-binding properties. We studied matched knee synovial fluid