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Electron bunch compressors formed of achromat arcs have a natural advantage over the more commonly used chicane compressors in that linearization of the longitudinal phase space is of the correct sign to compensate for the curvature imprinted by rf acceleration. Here we extend the utility of arc compressors to enable variation of the longitudinal compaction within a fixed footprint. We also show t

Beam line optics for synchrotron facilities are generally designed from geometric calculations wherein the bending magnet, undulator, or wiggler photon source is approximated by a high divergence point source. In this article we will, however, show that in the case of a synchrotron radiation source with very small divergence (such a source can be encountered at an undulator based third generation

Malcolm X’s (or El-Hajj Malik El-Shabazz) life, political and social activism, religion, and their various impacts on the Civil Rights movement in the U.S. and beyond are attracting renewed scholarly attention, more then a half a century after his assassination. His political message has reached a wide variety of audiences inspiring numerous social activist groups across the globe. A large part of

Emergence agitation following anesthesia in children is not uncommon. It is, although generally self-limiting, associated with both patient and parents distress. We conducted a national survey around the management of behavioral and neurocognitive disturbances after surgery/anesthesia including a case scenario about a child at risk for emergence reaction. Premedication with clonidine or midazolam

Answering the key challenges for society due to environmental issues like climate change, pollution and loss of biodiversity, and making the right decisions to tackle these in a cost-efficient and sustainable way requires scientific understanding of the Earth System. This scientific knowledge can then be used to inform the general public and policymakers. Scientific understanding starts with havin

Lignin is the second most abundant biopolymer in nature and a promising renewable resource for aromatic chemicals. For the understanding of different lignin isolation and conversion processes, the identification of phenolic compounds is of importance. However, due to the vast number of possible chemical transformations, the prediction of produced phenolic structures is challenging, and a non-targe

This thesis focuses on the pedagogue as a social being and how she or he experiences the social life in preschools and schools in Tallsten. In 1996, the child-care and education authorities in Tallsten introduced a new manner of thinking and working based on the communicative pedagogy. The idea of communicative pedagogy was origanlly put forth by the Danish teacher Lars Rokkjaer. One of the goals

The study attempts to explain the rapid and significant changes in Birger Sjöbergs oeuvre, from the idyllic Fridas Bok 1922 and Kvartetten som sprängdes 1924 to the pioneering collection of poems Kriser och kransar 1926. Two types of explanation to this development is offered: the lyrical idiom i Kriser och kransar is a development of parodic devices in Fridas Bok. The theory behind this explanati

Optimal foraging and prey preference in top predators may affect population and community dynamics and structure. Also, optimal foraging and prey preference may shift with prevailing conditions, and therefore create changes in the effect of predation. In this thesis, I examine the effects of intraspecific interactions among northern pike on pike predatory behaviour, prey preference, and subsequent

Popular therapeutic culture—such as self-help books, TV programmes, and Internet resources—is growing rapidly and posing important questions for feminist research and politics. On the one hand, it can be seen as a challenge to the public sphere in terms of what can be shown and said and by whom, with the emancipatory potential of giving political credentials to the personal. On the other, it can b

Methane is a powerful greenhouse gas and growing concern regarding global climate changes over the last years has pointed out the need to quantify and control the leaking of methane into the atmosphere. Landfill gas is regarded as one of the major sources for methane migration to the atmosphere. In this study we present research work with the objective to evaluate the use of geoelectrical resistiv

Transplantation of embryonic human neural tissue can restore function in patients with Parkinson’s disease, but there is a severe shortage of donor tissue which limits the applicability of the technique. Embryonic neural tissue from other species, xenogeneic tissue, would provide a readily accessible donor tissue with the potential to help patients if the immunological reactions in the host could

Abstract The number of cancer and autoimmune disease diagnoses increases in our society, which place high demands on the health care system. Being able to tailor treatments for each individual patient is called "Personalized medicine", and could revolutionize the care in the future. This type of medicine requires biomarkers that could be used for diagnosis, prognosis and choice of therapy. In our