Sökresultat
Filtrera
Filtyp
Din sökning på "*" gav 529630 sökträffar
What accounts for intra-industry wage differentials? Results from a survey of establishments
This paper utilizes an original establishment survey in a select few low-wage industries in Los Angeles to draw conclusions about the existence of and explanations for intra,industry wage differentials. We explore differences in average establishment wages but also in the starting wage of the largest low-wage occupations in establishments. Well over 50 percent of the variation in average establish
Soil fungi appear to have a retarding rather than a stimulating role on soil apatite weathering
Aims Vegetation stimulates, in general, soil mineral weathering. It has been hypothesized that plant-associated microorganisms, especially ectomycorrhizal fungi play a major role in this process. We studied apatite dissolution in a vegetation gradient in southern Norway to test the role of ectomycorrhizal vegetation on mineral weathering. Methods A natural occurring lead contamination, probably pr
Articles on Potential Theory, Functional Analysis and Hankel Forms
Popular Abstract in Swedish Avhandlingen består av tre matematiska forskningsartiklar. Den första artikeln, Paper I, undersöker spektrala egenskaper hos Neumann-Poincare-operatorer, även kallade dubbelskiktspotentialoperatorer, för områden med låg regularitet. Operatorernas spektra har kopplingar till elektrostatiska problem, och författarens intresse inleddes i samband med en tidigare artikel sPaper I: Perfekt, K.-M. and Putinar, M., Spectral bounds for the Neumann-Poincaré operator on planar domains with corners, to appear in J. Anal. Math., (2012). The boundary double layer potential, or the Neumann-Poincaré operator, is studied on the Sobolev space of order $1/2$ along the boundary, coinciding with the space of charges giving rise to double layer potentials with finite energy in the
Skatterättslig tolkning på inkomstbeskattningens område - lagen i sitt systematiska sammanhang och vid (uppenbara) felformuleringar
I artikeln diskuteras om entydig skatterättslig lagtext alltid måste följas. Svaret är att legalitetsprincipen innebär att så är fallet, men att det i ”svåra fall” är problematiskt att tillämpa och tolka text isolerad från sitt sammanhang. Det är inte givet vad som avgränsar den text eller det sammanhang som ska tolkas, men författaren menar att en tolkning av en regel i sitt systematiska sammanha
Parasite Specific Antibody Increase Induced by an Episode of Acute P. falciparum Uncomplicated Malaria.
There is no approved vaccine for malaria, and precisely how human antibody responses to malaria parasite components and potential vaccine molecules are developed and maintained remains poorly defined. In this study, antibody anamnestic or memory response elicited by a single episode of P. falciparum infection was investigated.
Plasticity in reproductive phenotypes reveals status-specific correlations between behavioral, morphological, and physiological sexual traits
Pharmaceutical and Biomedical Applications of Spectroscopy in the Photon Migration Regime
The present thesis is devoted to two different matters: One part is the development of a novel optical technique for characterisation of solid pharmaceutical materials. The other part being the continued development of photon time-of-flight spectroscopy, as well as exploration of new application areas of this method. These two optical techniques are conceptually and technically very different, but
Fiktionens utmaningar
Adaptive evolution of an industrial strain of Saccharomyces cerevisiae for combined tolerance to inhibitors and temperature
Introduction: Development of industrial yeast strains with high tolerance towards the inhibitors released during biomass pretreatment is critical for bioethanol production. Combining this trait with increased thermotolerance would result in a more efficient production via Simultaneous Saccharification and Fermentation (SSF) as well as reduced cooling costs. The aim of the present work was to devel
Innate immune cell response in sepsis
Leukocyte recruitment is known to be a key feature at sites of inflammation and important in the combat against infectious agents. However, the mechanisms of leukocyte recruitment in the pulmonary microvasculature in response to local and systemic inflammation remain elusive. Abdominal sepsis is associated with significant changes in systemic inflammation and coagulation. We hypothesized that leuk
Harmonic decomposition of two particle angular correlations in Pb-Pb collisions at root s(NN)=2.76 TeV
Angular correlations between unidentified charged trigger (t) and associated (a) particles are measured by the ALICE experiment in Pb-Pb collisions at root s(NN) = 2.76 TeV for transverse momenta 0.25 < p(T)(t,a) < 15 GeV/c, where p(T)(t) > p(T)(a). The shapes of the pair correlation distributions are studied in a variety of collision centrality classes between 0 and 50% of the total hadronic cros
ICA and me - A subjective review.
ICA - instrumentation, control and automation - is a hidden technology. It is ubiquitous in all industrial processes, including water and wastewater treatment systems. Still, as long as everything works fine, it is not noted but when things go wrong it will be observed. ICA has now about forty years of history in water and wastewater systems and is well recognized. One early attitude was that ICA
Post-stroke functional limitations and changes in use of mode of transport
Purpose: To investigate the use of different modes of transport and long-term changes among stroke survivors with cognitive functional limitations (CFLs), and to study differences among sub-groups (decreased/ceased vs. unchanged and increased public transport use) regarding physical functional limitations (PFLs), CFLs, depression, and social activity outside home. Method: Survey of 79 individuals
Finite element Runge-Kutta discretizations of porous medium type equations
In this paper we analyze the convergence properties of full discretizations of a class of generalized porous medium equations. For the spatial and time discretizations, we use continuous piecewise linear finite elements and algebraically stable Runge-Kutta methods, respectively. We prove our convergence result without any assumption on the spatial regularity. It is shown that, under a certain stab
Epilogue – Towards an Experience Ecology of Relational Emotions
Right atrial organization and wavefront analysis in atrial fibrillation.
The purpose of this study was to develop techniques to quantify the propagation pattern of the electrical activation during atrial fibrillation (AF) along a one-dimensional catheter. Taking intra-atrial signal organization aspects into account, the atrial activations are detected and combined into wavefronts. Parameters describing wavefront consistency and activation order along the catheter are d
Core-shell structure in self-assembled lead/lead-oxide nanoclusters revealed by photoelectron spectroscopy
Nanoclusters containing metallic lead and lead oxide have been produced by self-assembly out of a primary mixture of lead atoms and oxygen in a reactive sputtering-based cluster source. Comparison of the valence and core-level responses in the photoelectron spectra shows that clusters have a core-shell structure with a lead-oxide core coated by an outer shell of metallic lead. This core-shell orde
Low concentrations, potential ecological consequences: Synthetic estrogens alter life-history and demographic structures of aquatic invertebrates
Contraceptive drugs are nowadays found in aquatic environments around the globe. Particularly, 17 alpha-ethinylestradiol (EE2) may act even at low concentrations, such as those recorded in natural ecosystems. We evaluated the physiological effects of EE2 on cyclopoids and calanoids, common copepods in both marine and freshwater communities. We used three EE2 concentrations and assessed its impact
Med kärret som källa : om begreppen offer och ritual inom arkeologin
Popular Abstract in Swedish Varför lade människor ner stenar, ben och redskap i vatten och våtmarker under förhistorisk tid? Och hur kan arkeologin skapa förståelse för denna typ av lämningar? Vanligen tolkas de nedlagda föremålen som offer, men det är ett begrepp som är förknippat med en rad problem. Bland annat riskerar användningen av offerbegreppet att dölja olikheter och nyanser i människornaThis thesis deals with questions concerning theoretical perspectives and archaeological interpretation. It is also a thesis about prehistoric wetland depositions, as they illustrate the discussion. The starting point of the study is the use of the concept of sacrifice (or offering) in Scandinavian archaeology. There are several assumptions, both explicit and implicit, that are considered problemat