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Contrast media as markers of GFR

Determination of the glomerular filtration rate (GFR) is generally considered as the most important parameter of quantifying renal function. The GFR is determined as renal or plasma clearance of an ideal filtration marker which is freely filtered by the kidney, does not undergo metabolism, tubular secretion or absorption. Markers that fulfil these demands are inulin, 51Cr-EDTA, 99mTc-DTPA, labelle

Generation of trisomies in cancer cells by multipolar mitosis and incomplete cytokinesis.

One extra chromosome copy (i.e., trisomy) is the most common type of chromosome aberration in cancer cells. The mechanisms behind the generation of trisomies in tumor cells are largely unknown, although it has been suggested that dysfunction of the spindle assembly checkpoint (SAC) leads to an accumulation of trisomies through failure to correctly segregate sister chromatids in successive cell div

Tree species composition in European pristine forests

The degree of general applicability across Europe currently achieved with several forest succession models is assessed, data needs and steps for further model development are identified and the role physiology based models can play in this process is evaluated. To this end, six forest succession models (DISCFORM, ForClim, FORSKA-M, GUESS, PICUS v1.2, SIERRA) are applied to simulate stand structure

Internet-based assessment of medical students' ophthalmoscopy skills.

Abstract. Purpose: Ophthalmoscopy is an important skill in undergraduate medical education. The use and outcome of a novel Internet-based method for assessing motor skills-related aspects of ophthalmoscopy skills in medical students are described. Methods: A total of 139 students in Malmö and 255 students in Umeå were assessed during four consecutive semesters. An optic disc photograph was obtaine

Risk of recurrence following delayed large flap reconstruction after mastectomy for breast cancer.

BACKGROUND: The aim of this retrospective matched cohort study was to evaluate the rate of recurrence among women with delayed large flap breast reconstruction after mastectomy for breast cancer. The recurrence rate among women treated at a single hospital was compared with that in an individually matched control group of women with breast cancer who did not have reconstruction after mastectomy. M

On user effects in MIMO handset antennas designed using characteristic modes

The Theory of Characteristic Modes (TCM) has been applied to design high-performance MIMO antennas for mobile terminals. However, existing studies focus on free-space (FS) performance, which is mostly irrelevant in real usage. This paper investigates the performances of two TCM-based MIMO terminal antenna designs in 7 realistic user scenarios for frequencies below 1 GHz. Full-wave simulation resul

Risk of incident and fatal melanoma in individuals with a family history of incident or fatal melanoma or any cancer.

Background: A family history of melanoma is associated with an increased risk of melanoma and probably of other, discordant cancers. Limited data are available on familial mortality in melanoma. If fatal forms of melanoma were associated with fatal forms of melanoma or of some other cancers, only studies on familial mortality rather than on familial incidence might be able to detect them. Furtherm

Chemical investigations of disperse dyes in patch test preparations.

BACKGROUND: Contact allergy to textile dyes is not uncommon. The allergy is detected by patch testing patients with commercial patch test preparations. OBJECTIVE: To investigate 8 disperse dyes (DDs) used for patch testing in the departments in Malmö and in Leuven and to compare them with test preparations used at various dermatology departments. Materials/Methods: The investigated DDs were Disper

Malmös omvandling: från arbetarstad till kunskapsstad : En diskursanalytisk studie av Malmös förnyelse

Popular Abstract in SwedishMed utgångspunkt i två forskningsfält – strategisk kommunikation och urbanforskning – analyseras och problematiseras Malmös omvandling från arbetarstad till kunskapsstad. Hur har Malmös förändring genomdrivits? Vilka resonemang och föreställningsramar har styrt omvandlingen? Vilka kommunikativa strategier har använts för att projicera den önskvärda (själv)bilden av en kuIncreasingly cities compete for tourist dollars, shoppers, financial investments, know-how and tax-payers by bolstering the cities images as centers of creativity, innovation, knowledge, art, design and so forth. Accelerated and intensified globalization, technological advances, market deregulations,de-industrializations and socio-economic change have urged cities, especially former industrial cit

Signs of fetal brain sparing are not related to umbilical cord blood gases at birth.

BACKGROUND: Fetal chronic hypoxia leads to centralization of circulation in order to spare the vital organs brain, adrenals and the heart. This can be documented by Doppler ultrasound. Increased blood velocity in the fetal middle cerebral artery (MCA) is an acknowledged sign of centralization of circulation in chronic hypoxia, and is called brain sparing. AIM: Our aim was to assess the relationshi

Minimal and canonical rational generator matrices for convolutional codes

A full-rank IC x n matrix G(D) over the rational functions F(D) generates a rate R = k/n convolutional code C. G(D) is minimal if it can be realized with as few memory elements as any encoder for C, and G(D) is canonical if it has a minimal realization in controller canonical form. We show that G(D) is minimal if and only if for all rational input sequences p1 (D), the span of U (D) G (D) covers t

Dc-resistometric Urea Sensitive Device Utilizing A Conducting Polymer Film For the Gas-phase Detection of Ammonia

The construction of an urea sensitive device based on a conducting polymer is described. The conducting polymer (polypyrrole) was exposed only to a gas-phase; this led to a significant improvement in its stability. A DC-resistometric measuring principle was used, which required only simple measuring equipment. The device responded rapidly to between 0 and 500 mM urea, with resistance changes of be

An Improved Method for Automatic Segmentation of the Left Ventricle in Myocardial Perfusion SPECT.

This study describes and validates a new method for automatic segmentation of left ventricular mass (LVM) in myocardial perfusion SPECT (MPS) images. This is important for estimating the size of a perfusion defect as percentage of the left ventricle. METHODS: A total of 101 patients with known or suspected coronary artery disease underwent both rest and stress MPS and MRI. A new automated algorith

Autoionization Widths of the No Rydberg-valence State Complex In the 11-12 Ev Region

The photoion excitation spectra of (NO)-N-14 and (NO)-N-15 have been studied in the 105-112 Mn excitation region using high-order harmonic laser spectroscopy. Utilizing the small bandwidth offered by this technique, the natural widths of prominent lines in this region have been measured. These lines originate from interactions between high-lying Rydberg levels converging to the NO+ electronic grou