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Solvent exchange using hollow fiber prior to separation and determination of some antioxidants by high performance liquid chromatography

This study presents a simple and rapid solvent exchange procedure using a hollow fiber. Antioxidants (Irganox 1010, Irganox 1076 and Irgafos 168) and solvents such as tetrahydrofuran (THF), carbon tetrachloride and toluene were selected as model compounds and sample solvents, respectively. After injection of the sample solution into the hollow fiber and solvent evaporation, the precipitated analyt

A single-stage direct interpolation multiphase clock generator with phase error averaging

Multiphase clock generators are conventionally implemented with a feedback loop. This paper presents a non-feedback approach to generate multiphase clocks. A simple architecture of direct phase interpolation is proposed, in which the edges of two phase-adjacent signals are used to control the discharge (or charge) of two capacitors respectively, producing time-overlapped slopes. A resistor chain c

Measuring the heat of wetting of textile fibres by reaction calorimetry

The heat of wetting of regenerated cellulosic fibres (TENCEL (R), Viscose and Modal) was investigated by reaction calorimetry in comparison with cotton, polyester and TENCEL (R) Fabric. Reaction calorimetry is a technique applied for measuring the heat evolved in chemical reactions where very high analytical precision is required Before the measurements, the fibre samples were dried in an oven at

Utvärdering av Probiks fuktindikatorer : laboratorie- och fältundersökningar av Alfasensors fuktindikeringsteknik

Rapporten beskriver en studie som syftat till att undersöka och beskriva tre typer av Probiks fuktindikatorer från Alfasensor AB. De olika typerna är Probiks CO, BI och HU. Studien är delvis utförd på laboratorium och delvis i fält på en byggarbetsplats. I rapporten har även erfarenheter från mätningar i befintliga byggnader sammanställts. I studien har en rad experimentella försök av indikatorern

Arbete i kyla vid mjölkproduktionsanläggningar: Kartläggning och studie av termiska arbetsmiljöproblem

Målet med projektet var att analysera problem med arbete i kyla i mjölkproduktionsanläggningar vad gäller förekomst, frekvens och skaderisk samt att föreslå åtgärder för förbättringar. Projektet bestod av två delar: Del 1. En fältstudie, som genomfördes dels i Uppsalatrakten, dels i Västerbottens län. Del 2. En enkätstudie, riktad till Lantbrukshälsans medlemmar i norra regionen. Fältstudierna omfThe aim of the project was to analyse problems with cold when working in dairyfarms with respect to prevalence, frequency and risk for injuries and to propose measures for improvements of thermal conditions. The project comprised two parts: a field study and a questionnaire survey. The field studies were performed at seven dairy-farms in the Uppsala region and six dairy-farms in the northern regio

A local limit theorem for random walk maxima with heavy tails

For a random walk with negative mean and heavy-tailed increment distribution F, it is well known that under suitable subexponential assumptions, the distribution pi of the maximum has a tail pi(x, infinity) which is asymptotically proportional to integral(x)(infinity)F(y,infinity) dy. We supplement here this by a local result showing that pi(x, x + z] is asymptotically proportional to zF(x,infinit

To the Glory of Mary: Liber scole virginis at Lund University Library

Medeltidshandskrift 14, the so called Liber scole virginis, is the oldest existing song book of the Cathedral of Lund. It has been given much attention this year in connection with the 900th anniversary of the archdiocese of Denmark. The codicological analysis of this manuscript tells an interesting story about the development of the Marian cult in Lund.

Weakness and strength training in persons with poststroke hemiplegia: Rationale, method, and efficacy

Several converging lines of contemporary evidence suggest that weakness presents a more serious compromise to movement function in poststroke hemiplegia than spasticity. This review examines the clinical and functional phenomena of weakness in poststroke hemiplegia, currently available evidence identifying physiologic substrates contri-buting to weakness, and reports of early investigations involv

Cytolysis and piecemeal degranulation as distinct modes of activation of airway mucosal eosinophils

BACKGROUND: Cytotoxic eosinophil granule proteins are considered important in the pathogenesis of inflammatory airway diseases, including asthma, rhinitis, and polyposis. However, little is known about the mechanisms involved in the deposition of these tissue-damaging granular products in vivo. OBJECTIVE: We sought to determine the occurrence of degranulating eosinophils, those with morphologic ev

Recurrence in patients with oral and oropharyngeal squamous cell carcinoma: human papillomavirus and other risk factors.

Conclusions. The results confirm that tumour stage influences the risk of recurrence/second primary tumour (SPT). High-risk human papillomavirus (HPV)-infected patients have a significantly higher risk of recurrence/SPT compared with high-risk HPV-negative patients. High alcohol consumption was associated with a higher risk of recurrence/SPT. In this study, the competing risk of death in intercurr

Prediction of relative glomerular filtration rate in adults: New improved equations based on Swedish Caucasians and standardized plasma-creatinine assays.

OBJECTIVE: To evaluate newly developed equations predicting relative glomerular filtration rate(GFR) in adult Swedish Caucasians and to compare with the Modification of Diet in Renal Disease(MDRD) and Mayo Clinic equations using enzymatic and zero-calibrated plasma creatinine assays. MATERIAL AND METHODS: GFR was measured with iohexol clearance adjusted to 1.73 m(2). One population sample (n=436/L

Disability pension in Malmohus county: aspects on long-term financial effects

The purpose of this study was to estimate the financial costs of disability pension in order to compare the financial burden and the numerical distribution of disability pension by main diagnostic groups. During three months all new disability pensions (n = 944) granted in Malmohus county were registered. During a follow-up of approximately two and a half years, 40 subjects died and 15 pensions ex

Altered transcapillary escape of albumin and microalbuminuria reflects two different pathogenetic mechanisms

We studied the following in normo- and microalbuminuric hypertensive type 2 diabetic patients: 1) transcapillary escape rate of albumin (TERalb) and 2) expression of mRNA slit diaphragm and podocyte proteins in renal biopsies. Normoalbuminuric subjects had renal cancer, and kidney biopsy was performed during surgery. TERalb was evaluated by clearance of I-125- albumin. Real-time PCR of mRNA slit d

Fish processing work: the impact of two sex dependent exposure profiles on musculoskeletal health

OBJECTIVES: To evaluate the impact of work tasks, physical exposure, and psychosocial factors on the risk of musculoskeletal disorders in men and women, in a defined industrial setting. METHODS: 116 male and 206 female fish industry workers were compared with 129 men and 208 women with more varied work. Physical and psychosocial work load as well as musculoskeletal complaints were recorded by a qu

Life expectancy in the province of Halland, Sweden, 1911-50: the progress of public health in a long-living population

Background: Life expectancy in Sweden is currently one of the longest in the world. The population of Halland has the longest life expectancy in Sweden. Aim: Life expectancy in the province of Halland and Sweden as a whole during 1911-50 was studied and the findings are discussed in the light of local historical data. Method: A trend analysis of risk ratio of death and life expectancy for Halland

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