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A method is described for measurement of freely dissolved copper concentrations in natural water samples using supported liquid membrane (SLM) extraction under equilibrium conditions, a technique denoted "equilibrium sampling through membranes" (ESTM). For this purpose, 1,10-dibenzyl-1,10-diaza-18-crown-6 as neutral carrier and oleic acid were used in the membrane phase. The main variables optimis
Background: Lung densitometry is an effective method to assess overall progression of emphysema, but generally the location of the progression is not estimated. We hypothesized that progression of emphysema is the result of extension from affected areas toward less affected areas in the lung. To test this hypothesis, a method was developed to assess emphysema severity at different levels in the lu
This paper presents class-D CMOS oscillators capable of an excellent phase noise performance from a very low power supply voltage. Starting from the recognition of the time-variant nature of the class-D LC tank, accurate expressions of the oscillation frequency, oscillation amplitude, current consumption, phase noise, and figure-of-merit (FoM) have been derived. Compared with the commonly used cla
Landing from a jump is related to predictive sensorimotor control. Frontal, central and parietal brain areas are known to play a role in this process based on online sensory feedback. This can be measured by EEG. However, there is only limited knowledge about brain activity during predictive preparation for drop landings (DL). The purpose is to demonstrate changes in brain activity in preparation
Popular Abstract in Swedish Övergripande syfte Syftet med avhandlingen var att utvärdera hur en förenklad metod för diagnostisering av blodproppar i benets djupa ådror (djup ventrombos (DVT)) fungerar i svensk rutinsjukvård. Den förenklade metoden innebär användning av en strukturerad klinisk sannolikhetsbedömning tillsammans med ett blodprov (D-dimer test). Vi jämförde också vår D-dimermetod med The combination of pre-test clinical probability assessment and D-dimer test is now widely applied in the diagnostic process of DVT. The general objective of the present investigation was to validate these results in a Swedish routine emergency setting were the prevalence of the disease is high and were the clinical probability assessment was handled by many junior physicians. Furthermore, our aim
Injury to the brain (e.g., stroke) results in a disruption of neuronal connectivity and loss of fundamental sensori-motor functions. The subsequent recovery of certain functions involves structural rearrangements in areas adjacent to the infarct. This remodeling of the injured brain requires trafficking of macromolecular components including cholesterol and phospholipids, a transport carried out b
Background: Cellular interactions elicited by Plasmodium falciparum erythrocyte membrane protein antigen 1 (PfEMP1) are brought about by multiple DBL ( Duffy binding like), CIDR ( cysteine-rich interdomain region) and C2 domain types. Elucidation of the functional and structural characteristics of these domains is contingent on the abundant availability of recombinant protein in a soluble form. A
OBJECTIVES: To estimate the total direct medical costs to society for patients with type 2 diabetes in Sweden and to investigate how different factors, for example diabetic late complications, affect costs. DESIGN: Cross-sectional data regarding health care utilization, clinical characteristics and quality of life, were collected at a single time-point. Data on resource use cover the 6-month perio
Starting from next year the technical feasibility of a direct seeding scheme at 30 and 13 nm will be studied at the Free-electron LASer in Hamburg (FLASH). During a major shutdown the SASE-FEL facility will be upgraded and it is planned to install in addition a high-harmonic generation (HHG) seed laser, a new chain of 10 m variable gap un-dulators and a dedicated commissioning beamline for photon
Traumatic brain injury (TBI) constitutes a global epidemic. Overall outcome is poor, with mortality ranging from 10 to 70% and significant long-term morbidity. Several experimental reports have claimed effect on traumatic edema, but all clinical trials have failed. Antisecretory factor, an endogenous protein, is commercially available as Salovum®, which is classified as a medical food by the Europ
We analyzed seasonal flu vaccination rates among the Italian population suffering from Chronic Obstructive Pulmonary Disease (COPD) in order to identify socio-demographic and clinical determinants for vaccination. We used data from the survey "Health and health care use in Italy", which interviewed 5,935 persons (age 15 - 102 years) suffering from COPD in the period 2004-2005. For each respondent,
SI-PASS is an academic assistance program that provides help for students in “difficult” courses, often introductory courses for first-year students. The idea behind SI is that learning a subject is enhanced by an exchange of thoughts and ideas between students. The goal is to make the students become active and independent learners that sees peers as a learning resource. SI-PASS is connected to a
Background: Omega-3 and acetylsalicylic acid (ASA) are two widely used “over-the-counter” drugs. Previous researchhas shown multiple electrode aggregometry (MEA) can detect ASA and varying Omega-3 platelet inhibiting effects.Synergistic platelet inhibiting effects of ASA and Omega-3 have been found using other methods than MEA. The aimof this study was to investigate the antiplatelet effects of Om
It is fair to assume that the process of standardization may have a significant impact on the development and adoption of SB. Within SB different standardization efforts have been made, but none has assumed a dominance or authority in the area. Standardization efforts within SB may differ within various technical areas, and also the basic processes of standard creation can be divided into various
Sustainable groundwater resources management in arid areas requires early and immediate action to prevent further negative impacts on these resources. The persistent decline in the quantity and quality of groundwater in many countries has been leading to severe challenges in the present and future. In this research, the factors affecting groundwater salinization in a coastal aquifer were evaluated
Introduction: When a child is diagnosed with Type 1 diabetes, it involves extensive lifestyle changes for the whole family. There is limited knowledge of the impact the initial care has for children and parents over time. The aim was to compare children’s diabetes-specific health-related quality of life (HRQOL) in hospital-based care and hospital-based home care (HBHC), 12 and 24 months after the
Aim: The aim of this pilot study was to explore the Fear of Birth Scale in a mixed sample of women of childbearing age, by investigating the levels of childbirth fear and the content of women's thoughts when completing the scale. Methods: A cross-sectional mixed method study of 179 women who completed a short questionnaire and a think aloud interview. Results: The mean score of the Fear of Birth S
In order to obtain a higher thermal efficiency, the inlet temperature of gas turbines is gradually increased. However, this increases the thermal load on the first stage vane endwall surface. Therefore, an advanced cooling technique must be implemented for the endwall cooling to ensure that the gas turbine operates safely. In the current study, effects of swirling coolant flow from the upstream sl
Hemicelluloses are a group of abundant polymers found in all plants and constitute about one third of the total plant biomass. These polymers can be used in many different products, such as oxygen barrier films, emulsifiers, foams and probiotic food additives. However, the commercial development and use of new products utilizing hemicelluloses has been limited due to the high production cost. Incr
BACKGROUND/AIM: Consequences of an anterior cruciate ligament (ACL) injury include worse patient-reported outcomes (PROs) and a decrease in activity level. Muscle function can be improved by targeted exercise. Our aims were to investigate cross-sectional and longitudinal associations among lower extremity muscle function and PROs after ACL injury.METHODS: Fifty-four participants (15 women, mean 30
