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Photofunctionality of iron(III) N-heterocyclic carbenes and related d5 transition metal complexes

Despite a few reports of photoluminescent and strongly photo-oxidizing transition metal complexes with a d5 electronic configuration, the photophysics and photochemistry of this class of transition metal complexes have largely remained unexplored. Recent investigations of earth-abundant iron(III) N-heterocyclic carbene (NHC) complexes have demonstrated promising photophysical and photochemical pro

Europe in Historical International Relations

Almost any conversation about Historical International Relations (IR) appears to be, at least implicitly, always already about Europe. The geographical and intellectual centrality of Europe shapes the way in which historically oriented work in IR operates. Paradoxically, despite a long and powerful lineage of disciplinary Eurocentrism, Europe has only rarely emerged as a conceptual focal point of

Synchronization in Digital Twins for Industrial Control Systems

Digital twins, which are a new concept in industrial control systems (ICS), play a key role in realizing the vision of a smart factory, and they can have different effective use cases. With digital twins, we have virtual replicas of physical systems so that they precisely mirror the internal behavior of the physical systems. Hence, synchronization is necessary to keep the states of digital twins i

Överlappningen mellan dataskydd och marknadsrätt : Dataskyddsförordningens tillämpning på marknadsföring och marknadsrättens tillämpning på kommersiell personuppgiftsbehandling

Digitaliseringen gör det möjligt för näringsidkare att utveckla nya affärsmodeller, upptäcka nya marknader och att rationalisera sina verksamheter.En viktig aspekt i denna utveckling utgör att samla in, behandla och på olika sätt utnyttja personuppgifter av såväl befintliga som presumtiva kunder. Av den anledningen existerar ett naturligt samband mellan personuppgifter och näringsverksamhet och fr

Ideella organisationers medverkan i tvister på dataskyddsrättens område

EU:s dataskyddsförordning innehåller bestämmelser om vissa ideella organisationers behörighet att uppträda som ombud för registrerade samt om sådan organisationers talerätt. Syftet med denna artikel är att undersöka vilka möjligheter sådana organisationer enligt gällande svensk rätt har att delta i övervakningen av dataskyddsreglernas efterlevnad.

Mass spectrometry-based analysis of formalin-fixed, paraffin-embedded distal cholangiocarcinoma identifies stromal thrombospondin-2 as a potential prognostic marker

Background: Distal cholangiocarcinoma is an aggressive malignancy with a dismal prognosis. Diagnostic and prognostic biomarkers for distal cholangiocarcinoma are lacking. The aim of the present study was to identify differentially expressed proteins between distal cholangiocarcinoma and normal bile duct samples. Methods: A workflow utilizing discovery mass spectrometry and verification by parallel

A sensitive assay for dNTPs based on long synthetic oligonucleotides, EvaGreen dye and inhibitor-resistant high-fidelity DNA polymerase

Deoxyribonucleoside triphosphates (dNTPs) are vital for the biosynthesis and repair of DNA. Their cellular concentration peaks during the S phase of the cell cycle. In non-proliferating cells, dNTP concentrations are low, making their reliable quantification from tissue samples of heterogeneous cellular composition challenging. Partly because of this, the current knowledge related to the regulatio

Trapping and re-use system for radioactive xenon in nuclear medicine

Different methods of trapping radioactive xenon are reviewed. Trapping by adsorption on activated charcoal has the advantage of being simple and cheap and also makes it possible to recycle the xenon. An activated charcoal trapping system is described which can extract 133Xe from 100l of expired air in 10 min from patients undergoing diagnostic pulmonary or circulation studies. Details of the const

The dual photopeak-area method applied to scintillation camera measurements of effective depth and activity of in vivo 123I-distributions

Attenuation curves and photopeak ratios of 159 keV and 28 keV phtons emitted in the decay of 123I have been studied using a scintillation camera equipped with an extra ADC for recording the pulse height distribution of the energy signal. Cavities of various sizes containing 123I-solution were placed at different depths in a water phantom in order to vary the effective depth, i.e., the thickness of

Labeling plasmin with technetium-99m for scintigraphic localization of thrombi

A detailed study has been made of the method for labeling plasmin (NOVO Indstri A/S Denmark) with 99mTc in order to prepare a radioactive indicator for early scintigraphic visualization of thrombi and tumors. The best method found for preparing 99mTc-plasmic involved the reduction of 2.5 ml 99mTc-pertechnetate solution with 0.5 ml of 4 mM SnCl2, 2 M NaCl and 70 mM HCl. This mixture was then added

Imaging 123I with a scintillation camera. A study of detection performance and quality factor concepts

Image quality, resolution and sensitivity of a scintillation camera equipped with various collimators have been investigated using high purity 123I. Pulse height distributions of 123I from a thyroid phantom partly in air and partly immersed in water demonstrated the substantial septa penetration of the 440 and 529 keV gamma rays of 123I with high resolution collimators. Line spread functions were

Quality control and testing of 99Tc(m) macroaggregated albumin

(99m)Tc labelled macroaggregated albumin particles prepared from a commercial 'kit' have been tested in detail. With the introduction of the method of gel chromatography column scanning it became possible to make fast and simple quantitative measurements of the radiochemical purity. This was found to be the only reliable method for quantitative determination of non aggregated (99m)Tc labelled albu

Labeling and testing of (99m)Tc streptokinase for the diagnosis of deep vein thrombosis

A detailed study has been made of the method for labeling streptokinase with 99Tc(m) in order to get a radioactive indicator for rapid scintigraphic visualization of thrombi and emboli. The best method found for preparing 99Tc(m) streptokinase was by reducing 99Tc(m) pertechnetate with 2 μmole SnCl2 at pH 0.7 and then adding 50,000 to 75,000 IU of streptokinase at a final pH of about 2. After 1 hr

Gel chromatography column scanning for the analysis of 99mTc-labelled compounds

The gel chromatography column scanning (GCS) method has been studied, special attention being paid to its suitability for the analysis of 99mTc-labelled compounds and radio-pharmaceuticals. The sample to be analyzed was applied at the top of a column filled with Sephadex G gel. Elution was carried out with 0.9% sodium chloride solution with such a volume that all the radioactivity was retained in

Radiolead (210Pb) and stable lead in the lichen Cladonia alpestris

Lichens of the genus Cladonia, mainly C. alpestris, collected during 1882-1972 were analyzed for stable lead and 210Pb. The specific activity of 210Pb (210Pb/Pb ratio) indicates a constant value of about 2 mCi/kg up to 1940, and then decreased to 0.6 mCi/kg during 1950-1960. As the average annual 210Pb deposition is relatively constant, the decrease in the 210Pb/Pb ratio after 1940 indicates an in