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[1] Vigorous debate still surrounds the cloud electrification process and unexplained regional variations in lightning activity. Here, we show that climatological maxima in lightning activity are associated with small effective diameter D-e of ice crystals near cumulonimbus cloud tops. This relationship, unlike lightning's more well-known relationship with cloud top height, is consistent over land
Neuronal connections and cortical maps are continuously remodeled by our experience. Knowledge of the potential capabilityof the brain to compensate for lesions is a prerequisite for optimal stroke rehabilitation strategies. Experimental focal cortical lesions induce changes in adjacent cortex and in the contralateral hemisphere. Neuroimaging studies in stroke patients indicate altered poststroke
This paper addresses how oil price changes affect the Oslo Stock Exchange. Multiple linear regressions with eight explanatory variables have been used to investigate the relationship between oil and the Oslo Stock Exchange between 1990-2009. The time period has also been divided into two sub periods to investigate if the effects of oil price changes have become more prominent over the years. After
Klimatförändringar har under de senaste decennierna blivit ett allt hetare forskningsämne och man har då även studerat hur klimatet förändrats genom årmiljonerna. Ett spännande kapitel i jordens historia är ordovicium som karaktäriserades som en växthusvärld med koldioxidhalter nära tjugo gånger dagens. Denna varma period avslutades med en global istid som resulterade i ett av de största massutdöeClimate change has become an increasingly important subject in geological research as past climates can teach us about the global climate systems. This thesis is a literature study on natural climate archives with examples from the Late Ordovician Boda Event. The Ordovician Period represented a greenhouse world with atmospheric CO2 levels almost twenty times higher then today. The climate became c
Development and how to reach economic growth have been discussed and talked about since the Industrial revolution in Europe pushed productivity and wages up but the models have changed over time and space. The most successful ones seems to build on traditional patterns of agriculture and growing domestic markets, but with a growing global market and new players on the world market can it be that t
An earthshine telescope has been designed and is being fabricated at Lund Observatory in collaboration with the Danish Meteorological Institute. The instrument will measure the albedo of the Earth by observing the Moon in white light and in certain spectral bands. The measurement is based on relative photometry of the dark and bright sides of the Moon, so the optical design of the telescope has be
Abortion is an important aspect of the fertility decision and the impact of economic conditions on the wellbeing of individuals and families. This study investigates the relationship between business cycle indicators in the context of women’s growing importance in Sweden’s labor market and economy. It finds that female relative wages have had the strongest impact on increasing abortion demand. The
Background: Plasmodium falciparum EBA175 and PfRh2 belong to two main families involved in parasite invasion, and both are potential vaccine candidates. Current knowledge is limited regarding which target antigens and subclasses of antibodies are actually important for protection, and how naturally acquired immunity is achieved. Methods: Repeated blood samples were collected from individuals in Ni
Urinary cadmium (U-Cd) sampling can be done either by 24-h urine or spot urine sampling, and adjustment for dilution is usually needed. The choice of sampling period and adjustment technique could, however, potentially induce bias. The aim of the study was to compare 24-h urine and spot urine sampling and two dilution adjustment techniques, when assessing U-Cd. Separate 24-h urine (U24) and timed
In this talk I present a short review of string hadronization, parton cascades, multiple scattering, final states, and underlying events.
Immunocytochemistry for transactive response binding protein-43 (TDP43) was assessed in the granular cell layer of the dentate gyrus in 250 cases displaying hippocampal pathology identified by haematoxylin-eosin staining. 18%, nearly one in five displayed TDP43 immunoreactive pathology in the granular cell layer of hippocampus. This percentage increased to 43% when only subjects with hippocampal p
The aim of this paper is to provide an explanation to why the degree of informal employment may vary substantially between different regions within a country. In Brazil, 45% of workers in the urban labor force are employed informally. The degree of informal employment, however, varies substantially across regions, with some cities having 20% and others having 80% or more of their labor force in th
The visual semiotics of Groupe µ and its relevance for art theory at large.
Breast cancer is the most common cancer form among women in the Western world. Although treatment has improved during the last decades, there is still a significant proportion of the patients who are not cured. To further improve clinical outcome we need new treatment strategies, new prognostic markers, and new treatment predictive factors for personalized medicine.In this dissertation I have focu
Using Low Energy Electron Diffraction (LEED) and Scanning Tunneling Microscopy (STM) we have investigated the structure of the GaP(111)B surface. We have previously studied the formation of Ga droplets on GaP(111)B above the maximum temperature for congruent evaporation. In the present work, we investigate the nanometer-sized pyramid-shaped crystallites that are found on the GaP(111)B surface and
While the conceptual history of the sign, as recounted by John Deely in Four ages of understanding, is immensely enlightening, history is never enough. If, before Augustine, it had occurred to no one that such diverse phenomena as are covered by this term had something in common, and if, in the time of Aquinas, Fonseca, and Poinsot, different usages of the term were in competition, the reason is n
There are numerous asymmetric extensions of the classical Laplace distribution scattered in the literature. In this survey we discuss their origins and inter-relations. In particular, we point out which types of skew Laplace distributions are essentially the same, described in different, albeit equivalent, parametrizations. In a companion paper cite{KP06} we review the properties of classical and
