Sökresultat

Filtyp

Din sökning på "*" gav 544231 sökträffar

The costoclavicular joint

Two patients with a costoclavicular joint were discovered by chance during a survey of cervical spines. These seem to be the first to be described in the radiological literature. No other case was found in a further review of 500 consecutive spine radiographs. The costoclavicular joint is a variant of the ligamentous connection between the medial part of the clavicle and the first rib.

Further insight in the web consolidation process - Part III. Modelling of paper shrinkage

A model for the web consolidation process in the paper dryer is developed and compared with experimental data for the kraft pulps. The model contains one parameter called the shrinkage factor which is used as the fitting parameter to the experimental data. The shrinkage factor can have a value between zero implying no shrinkage and a value of one which implies that all the liquid volume removed le

Origin invariant calculation of optical rotation without recourse to London orbitals

We propose an inherently origin invariant formulation of specific optical rotation obtained from the conventional velocity gauge expression by subtracting the static limit from the electric dipole-magnetic dipole polarizability: <<(p) over right arrow, (L) over right arrow >>(omega) --> <<(p) over right arrow, (L) over right arrow >>(omega) - <<(p) over right arrow, (L) over right arrow >>(0). Lon

Pluggable checking and inferencing of nonnull types for Java

We have implemented a non-null type checker for Java and a new non-null inferencing algorithm for analyzing legacy code. The tools are modular extensions to the JastAdd extensible Java compiler, illustrating how pluggable type systems can be achieved. The resulting implementation is compact, less than 230 lines of code for the non-null checker and 460 for the inferencer. Non-null checking is a loc

Direct electrochemical oxidation of DNA on polycrystalline gold electrodes

Electrochemical CV and SWV studies were performed with double stranded DNA from salmon testes (dsDNA) and single stranded DNAs, containing 25 nucleotides (ssDNA) directly adsorbed at polycrystalline An electrodes. A distinct oxidation peak at + 730 mV (SWV, scan rate 0.248 V s(-1)) or at + 730 - + 780 mV (CV, scan rate from 0.3 to 1 V s(-1)) was obtained with DNA-modified Au electrodes after a tim

Simulation of chromatographic processes applied to separation of proteins

The advantages of using a detailed mathematical model for fixed bed chromatography is demonstrated by the personal computer program SIMCHROM. The chromatography model includes axial dispersion in the bulk liquid, external and internal mass transfer resistances and an instationary non-linear adsorption model. Frontal and pulse chromatography can be studied for single and multicomponent systems. The

Lack of association between plasma homocysteine levels and microangiopathy in type 1 diabetes mellitus

The reactive vascular-injuring amino acid homocysteine was previously shown to be increased in plasma in diabetic patients with clinical signs of nephropathy. In this study, plasma homocysteine was measured in type 1 diabetic patients with normoalbuminuria (n = 22), microalbuminuria (n = 40) and proteinuria (n = 14) in order to investigate whether plasma homocysteine levels are increased already a

Circulating soluble E-selectin in early rheumatoid arthritis: a prospective five year study

Background: Soluble E-selectin (sE-selectin) is a marker of activation of vascular endothelium. Objective: To examine serum levels of sE-selectin in a cohort of 85 patients with early rheumatoid arthritis (RA) followed up for five years. Methods: sE-selectin levels were assessed annually using an enzyme linked immunosorbent assay (ELISA) and related to simultaneously obtained clinical and laborato

Setagin and secretagogin-R22: Posttranscriptional modification products of the secretagogin gene

We describe two new variants of the recently identified hexa-EF-hand calcium binding protein secretagogin. The first variant (secretagogin-R22) is characterized by one single amino acid exchange (Q/R) at codon 22, most likely due to RNA editing. The second variant of secretagogin (setagin) consists of 49 amino acids. Due to a frame shift, only the first 27 amino acids are identical to secretagogin

Factors Affecting Coronary Flow in Children

Factors Affecting Coronary Flow in Children Elhadi H. Aburawi, MD, MSc, FRCPI, FRCPCH Division of Paediatric Cardiology, Department of Paediatrics, Lund University, Sweden Abstract Background: A number of inborn and exogenous factors influence the flow and function of the coronary arteries with possible consequences on the cardiovascular risk. The regulation of the coronary flow is partly dep

On list sequence turbo decoding

An algorithm for decoding Turbo codes that combines conventional Turbo decoding and list sequence maximum a posteriori probability decoding is presented and evaluated. Compared to previous results on this theme, performance improvements in the order of 0.7 dB are obtained for Turbo codes with 514-b pseudo-random interleaving at a frame error rate of 10(-4) on the additive white Gaussian noise chan

Global phylogeographic limits of Hawaii's avian malaria

The introduction of avian malaria (Plasmodium relictum) to Hawaii has provided a model system for studying the influence of exotic disease on naive host populations. Little is known, however, about the origin or the genetic variation of Hawaii's malaria and traditional classification methods have confounded attempts to place the parasite within a global ecological and evolutionary context. Using f