Sökresultat

Filtyp

Din sökning på "*" gav 533447 sökträffar

Risks and possibilities in patch testing with contaminated personal objects: usefulness of thin-layer chromatograms in a patient with acrylate contact allergy from a chemical burn

We report a case of a chemical burn from dipropylene glycol diacrylate (DPGDA) spilt on working shoes, followed by active sensitization, thus giving an occupational allergic contact dermatitis on the patient's dorsal feet. Diagnostic tests included patch testing with acetone extracts made from the different shoe layers and thin-layer chromatograms. An invisible spot on the thin-layer chromatograph

Environmental impact of undular tidal bores in tropical rivers

A tidal bore impacts significantly on the estuarine ecosystem, although little is known on the flow field, mixing and sediment motion beneath tidal bores. In the absence of detailed systematic field measurements, a quasi-steady flow analogy was applied to investigate undular tidal bores with inflow Froude numbers between 1.25 and 1.6. Experimental results indicated that rapid flow redistributions

Hydrogen bond control of dimensionality in organometallic {2,6-Bis[(di-t-butylphosphino)methyl]phenyl}palladium(II) compounds: Dimers, chains, and a 3D-net with an apparent channel structure

A number of derivatives of {2,6-bis[(di-t-butylphosphino)methyl]phenyl}palladium(II)(PCPPd) have been synthesized and characterized by X-ray diffraction, namely, PCPPdNO3 (3), PCPPdOH hydrate (4), and PCPPdNO2 pentane solvate (5). These compounds share a rigid backbone and have about 75 atoms each whereof 70 are arranged in exactly the same way in all compounds. Nevertheless, in the solid state th

Psychometric properties of the French translation of the reduced KOOS and HOOS (KOOS-PS and HOOS-PS)

Objective: To evaluate the psychometric properties of the French KOOS physical function (KOOS-PS) and HOOS physical function (HOOS-PS), specifically its feasibility, reliability, construct validity, and responsiveness. Methods: Consecutive outpatients consulting for primary knee or hip osteoarthritis (OA) in a rheumatology department were included. During the initial assessment, patients were aske

Auditory magnetic responses of healthy newborns

We recorded magnetic brain activity from healthy human newborns when they heard frequency changes in an otherwise repetitive sound stream. We were able to record the magnetic counterpart of the mismatch negativity (MMN) previously described only with electric recordings in infants. The results show that these recordings are possible, although still challenging due to the small head size and head m

The incidence and mechanisms of pharyngeal and upper esophageal dysfunction in partially paralyzed humans: pharyngeal videoradiography and simultaneous manometry after atracurium

BACKGROUND: Residual neuromuscular block caused by vecuronium alters pharyngeal function and impairs airway protection. The primary objectives of this investigation were to radiographically evaluate the swallowing act and to record the incidence of and the mechanism behind pharyngeal dysfunction during partial neuromuscular block. The secondary objective was to evaluate the effect of atracurium on

Meniscal Tear in Knees Without Surgery and the Development of Radiographic Osteoarthritis Among Middle-Aged and Elderly Persons The Multicenter Osteoarthritis Study

Objective. Although partial meniscectomy is a risk factor for the development of knee osteoarthritis (OA), there is a lack of evidence that meniscal damage that is not treated with surgery would also lead to OA, suggesting that surgery itself may cause joint damage. Furthermore, meniscal damage is common. The aim of this study was to evaluate the association between meniscal damage in knees withou

Tracking Wild Boar and Hunters : Osteology of Wild Boar in Mesolithic South Scandinavia

This thesis deals with the hunting of wild boar during the Mesolithic in South Scandinavia and the relationship between humans and wild game. The study is based on an analysis of osteological remains from sites in Scania, Sweden, dating from the Late Maglemose Culture to the Early Ertebølle Culture. Tooth development and tooth wear in recent populations from Poland, Germany and Sweden have been s

Neuropsychiatric events at the time of diagnosis of systemic lupus erythematosus - An international inception cohort study

Objective. To describe the prevalence, characteristics, attribution, and clinical significance of neuropsychiatric (NP) events in an international inception cohort of systemic lupus erythematosus (SLE) patients. Methods. The study was conducted by the Systemic Lupus International Collaborating Clinics (SLICC). Patients were enrolled within 15 months of fulfilling the American College of Rheumatolo

In-Source Decay Causes Artifacts in SELDI-TOF MS Spectra.

SELDI-TOF MS is a mass spectrometric technique which has been extensively used for biomarker discovery. In this study, we show that in-source decay is an important source for the generation of additional spectral peaks with this technique, both for pure proteins and proteins in serum samples. Thus, SELDI-TOF MS could be used to gain sequence information from proteins, but the results also question

Computer-based education for patients with chronic heart failure - A randomised, controlled, multicentre trial of the effects on knowledge, compliance and quality of life

Objective: To evaluate the effects of a single-session, interactive computer-based educational program on knowledge, compliance and quality of life in heart failure patients with special emphasis on gender differences. Methods: One hundred and fifty-four patients, mean age 70 years, from five heart failure clinics were randomised to either receiving only standard education (n = 72) or standard edu

Glucose stimulates the expression and activities of nitric oxide synthases in incubated rat islets: an effect counteracted by GLP-1 through the cyclic AMP/PKA pathway

We have examined the expression and activity of inducible nitric oxide synthase ( iNOS) and the activity of neuronal constitutive NOS ( ncNOS) in isolated rat pancreatic islets, stimulated by a "hyperglycaemic" concentration of glucose, and whether the NOS activities could be modulated by activation of the cyclic AMP/ protein kinase A ( cyclic AMP/PKA) system in relation to the insulin secretory p

Chronic hyperbaric exposure activates proinflammatory mediators in humans

Decompression illness (DCI) is an illness affecting divers subjected to reductions in ambient pressure. Besides a mechanical explanation to DCI, an inflammatory mechanism has been suggested. In this study, levels of interleukin (IL)-8, IL-6, IL-1 receptor antagonist (IL-1ra), secretory leukocyte protease inhibitor (SLPI), and neutrophil gelatinase-associated lipocalcin (NGAL) were measured in dive

Nanometer table-top proximity x-ray lithography with liquid-target laser-plasma source

A compact laser-plasma proximity x-ray lithography system suitable for laboratory-scale low-volume nanometer patterning is presented. The laser-plasma source, which is based on a fluorocarbon liquid-jet target, generates high-brightness lambda = 1.2-1.7 nm x-ray emission with only negligible debris production. The Au/SiNx x-ray mask is fabricated by employing ion milling and a high-contrast e-beam