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Recent advances in laser technology, with the development of extremely short-pulse, high-intensity lasers, have opened doors to new areas in atomic physics. By focusing light from an intense, short-pulse laser into a gas jet, the emission of high-order harmonics of the laser frequency has been studied. The aim of this work has been two-fold: to better understand the underlying physics of the harmo
Med den här boken inbjuds studenter att granska och diskutera analyser skrivna av sina lärare. Boken utgör ett komplement till Lars Elleströms Lyrikanalys. En introduktion och är tänkt att användas som arbetsmaterial på seminarier, men även för självstudier. I boken ingår tjugosex analyser av tretton välkända lyriktexter skrivna av Andreas Gryphius, Carl Michael Bellman, Samuel Taylor Coleridge
In this paper we present a novel concept and methodology for generating tailored communication protocols specific to an application¿s requirements and the operating environment for a mobile node roaming among different access networks within the global Internet. Since the scheme that we present employs a universal technique, it can be also deployed in smallscale independent networks such as sensor
In this paper we describe how techniques for refactoring can be used for visual editing of hybrid languages, that is, languages that have both a visual and a textual syntax. Textual languages have name rules that define how name uses are bound to name declarations. These bindings often correspond to connections in the visual language, and need to be taken into account in order to implement the vis
Popular Abstract in Swedish Metan är en växthusgas med stor potential att påverka klimatet på Jorden. Den vattenmättade miljön i våtmarker erbjuder perfekta livsbetingelser för metanproducerande bakterier och detta medför att naturliga våtmarker är den största enskilda källan till metan i atmosfären, även då man räknar med antropogena utsläpp från, till exempel, förbränning av fossila bränslen. MoThe studies presented in Papers I to VI illustrate several different aspects of the impact of vascular plants on methane emissions from northern natural wetlands. The subject has been approached on different scales, ranging from the study of microbial substrates in the vicinity of a single plant root, to an attempt to extrapolate some of the results to the entire northern hemisphere north of 50°N.
An improved understanding of the response of forest ecosystems to elevated levels of CO2 in the atmosphere is crucial because atmospheric CO2 concentration continues to increase at an accelerating rate and forests are an important sink in the global carbon cycle. Several CO2-enrichment experiments have now been running for more than 10 years, with highly variable short-term results after the first
Popular Abstract in Swedish De flesta cancerformer uppvisar förvärvade kromosomavvikelser. En del enklare avvikelser har visat sig förekomma enbart i en viss tumörform och kan därför användas som diagnostiska markörer. I de flesta fall föreligger emellertid ett komplext och ospecifikt avvikelsemönster, ibland med ett mycket kraftigt ökat antal kopior av vissa DNA-sekvenser, så kallad genamplifieriAcquired genetic abnormalities are found in all types of malignant tumours and may contribute to neoplastic processes by altering protein structure or dosage. Many bone and soft tissue tumours (BSTT) are characterised by complex patterns of chromosome changes, including extensive intratumour heterogeneity and amplification of DNA sequences. The results presented in this thesis demonstrate that the
This paper presents a discrete model of a sensor path planning problem, with a long-term planning horizon. The goal is to minimize the covariance of the reconstructed structures while meeting constraints on the length of the traversed path of the sensor. The sensor is restricted to move on a graph representing a discrete set of configurations, and additional constraints can be incorporated by alte
Debatten om slakt, vetenskapliga faktum och halaluppfödning.
Bandwidth reservation is a procedure that can be applied to give higher priority to certain connection types in cellular networks. Subscriber movement predictions can be used to determine the amount of bandwidth to be reserved in each cell. The prediction accuracy is significantly unproved if both the approximate subscriber locations in the cell and stored subscriber movement data are taken into a
