Sökresultat

Filtyp

Din sökning på "*" gav 531121 sökträffar

Performance analysis of general charge sampling

This brief focuses on the performance analysis of general charge-sampling circuits for signal capture. The theoretical analysis in the brief can be applied not only for weak signal capture, but also for the normal signal sampling. Based on a general charge-sampling model, the transfer function, the noise performance, and the clock jitter tolerance are analyzed and compared to conventional voltage

Modelling of coastal evolution on yearly to decadal time scales

There is still no universal model for analysing and predicting coastal evolution and its governing processes on yearly to decadal time scales. Instead, depending on the nature of the problem and project objectives, there is a wide range of models available, each focusing on the problem complex from a specific standpoint. The present paper gives an overview of available numerical model types. A dif

Vårdnadstvister : En rättssociologisk studie av tingsrätts funktion vid handläggning av vårdnadskonflikter med utgångspunkt från barnets bästa

Popular Abstract in Swedish I Sverige bryter drygt 30 000 föräldrapar årligen upp från sin relation. Tillsammans har dessa föräldrar cirka 55 000 barn. I samband med föräldrarnas separation skall frågor om de gemensamma barnens vårdnad, boende och umgänge lösas. De flesta föräldrar klarar detta på egen hand eller med stöd av samarbetssamtal eller familjerådgivning, men ungefär 10% av de separerandThe purpose of this socio-legal dissertation is to examine the role of the district court in the handling of custody disputes, from the standpoint of the child's best interest. More specifically, the focus is partly on the relationship between the family and society during district court proceedings, and partly on the relationship between civil law and public law procedure that is to say between t

Contribution of increasing CO2 and climate to carbon storage by ecosystems in the United States

The effects of increasing carbon dioxide (CO2) and climate on net carbon storage in terrestrial ecosystems of the conterminous United States for the period 1895-1993 were modeled with new, detailed historical climate information. For the period 1980-1993, results from an ensemble of three models agree within 25%, simulating a land carbon sink from CO2 and climate effects of 0.08 gigaton of carbon

Treatment with TNF-blockers and mortality risk in patients with rheumatoid arthritis.

Objective: To assess mortality in patients with rheumatoid arthritis ( RA) treated with tumour necrosis factor (TNF) inhibitors, compared with a standard RA population. Methods: Patients were recruited from a regional register, which includes over 90% of patients with RA treated with TNF blockers in the area in 1999 or later, and a local community-based cohort of patients with RA, established in 1

Residue-specific pK(a) determination of lysine and arginine side chains by indirect N-15 and C-13 NMR spectroscopy: Application to apo calmodulin

Electrostatic interactions in proteins can be probed experimentally through determination of residue-specific acidity constants, We describe here triple-resonance NMR techniques for direct determination of lysine and arginine side-chain protonation states in proteins. The experiments are based on detection of nonexchangeable protons over the full range of pH and temperature and therefore are well

Living and Dying with Primary Sjögren's Syndrome Studies on Aetiology, Treatment, Lymphoma, Survival and Predictors

Popular Abstract in Swedish Denna avhandling hade som målsättning att belysa långtidsförloppet vid primärt Sjögrens syndrom (SS). Studierna är baserade på registret över SS-patienter vid Universitetssjukhuset MAS och de Amerikansk-Europeiska konsensuskriterierna för SS från 2002. Helicobacter pylori (H. pylori) är inte mer prevalent bland SS-patienter än bland kontrollpersoner. Bakteriens förekomThis work was aimed at improving our understanding of the course of primary Sjögren's syndrome (SS). The Malmö SS patient register and the 2002 American-European Consensus Criteria formed the basis of all studies. Helicobacter pylori (H. pylori) was not more prevalent in SS patients or associated with severe glandular or immunological dysfunction. Consequently, our results do not support screenin

Rare ISotopes INvestigation at GSI (RISING) Using Gamma-ray Spectroscopy at Relativistic Energies

The Rare ISotopes INvestigation at GSI project combines the former EUROBALL Ge-Cluster detectors, the MINIBALL Ge detectors, BaF2--HECTOR detectors, and the fragment separator at GSI for high-resolution in-beam gamma-ray spectroscopy measurements with radioactive beams. These secondary beams produced at relativistic energies are used for Coulomb excitation or secondary fragmentation experiments in

Leva med stroke - lära av erfarenheter

Popular Abstract in Swedish Denna avhandling handlar om hur personer, som insjuknat i stroke, beskriver sina upplevelser och erfarenheter av att leva med stroke och hur de lär sig hantera sin livssituation. Kunskaper om läroprocesser i en livsomställning, som insjuknande i stroke innebär, är betydelsefulla för att kunna förstå, möta och stödja människor i sådana situationer. Under de senaste årtioThis thesis concerns how people with stroke describe their experiences of life with stroke and how they learn to live with stroke. In the western world the interest for research in lived experiences has increased. This might be due to the higher rate of people with illness and lifelong diseases. The aim of the study is to analyze stories from persons with stroke of their lived experiences of life

Corticosterone levels in relation to migratory readiness in red-eyed vireos (Vireo olivaceus)

We examined the relationship between plasma levels of corticosterone and the migratory activity and directional preference of red-eyed vireos during fall migration at the northern coast of the Gulf of Mexico. Corticosterone is thought to play a role in physiological and behavioural processes before, during, and after long-distance migratory flights. An increase in corticosterone at the onset of mi

Male brood care without paternity increases mating success

We investigate under which conditions we can expect the evolution of costly male care for unrelated offspring, when the benefit of such care is in the form of increased mating success. This applies to male helping behavior that cannot be explained as paternal care because the male's own offspring does not benefit from his behavior. Our model shows that caring for others' offspring can be a stable

Hyperfine structure in the 6p5d configuration and isotope shifts in transitions between the 6s5d and the 6p5d configurations in Ba I

High-resolution laser fluorescence spectroscopy, using a single-mode dye laser acting on a collimated atomic beam, has been performed to determine the hyperfine-structure (hfs) constants in six states of the 6p 5d configuration of135Ba and137Ba. Isotope shifts (IS) for eleven transitions between the 6s 5d and the 6p 5d configurations have also been measured. From an analysis of the energy levels,

Tertiary phosphine abstraction from a platinum(II) coordination complex with SeCN-: Crystal and molecular structures of Se=PTA and [Se=PTA-Me]I center dot CH3OH

Reacting [PtCl(PTA)(3)]Cl (PTA = 1,3,5-triaza-7-phosphatricyclo[3.3.1.1(3,7)]decane) with KSeCN in aqueous or MeOH medium results in the abstraction of the PTA ligands to yield Se = PTA. The reaction also proceeds quantitatively by direct reaction of PTA and KSeCN in water or methanol. The methylated PTA ligand, [PTA-Me]I (1-methyl-1-azonia-3,5-diaza-7-phosphatricyclo[3.3. 1.1(3,7)]decane iodide),

A probabilistic approach to the use of pollen indicators for plant attributes and biomes: an application to European vegetation at 0 and 6 ka

Aim This paper presents a probabilistic method for the characterization of pollen taxa using attributes, and for the reconstitution of past biomes. The probabilities are calculated on the basis of European floristic and pollen databases sufficiently large and exhaustive to provide robust estimates. Location The analysis is based on data from approximately 1000 sites throughout Europe. Method We us

Variability in muscle fibre areas in whole human quadriceps muscle. How much and why?

To determine the variability in fibre areas in the human vastus lateralis muscle, cross-sections (15 microns) of whole autopsied muscles from eight young men have been prepared, and the cross-sectional area (CSA) of 375 type 1 and 375 type 2 fibres has been measured in five different regions throughout each muscle. The CSA of both fibre types varied significantly within all muscle cross-sections.