Spatially direct and indirect Stark ladder optical transitions and their electric field induced evolution have been investigated in a GaAs/AlAs (LZ = 6.4 nm/LB = 0.9 nm) superlattice by low temperature photocurrent spectroscopy. When the ground and first excited electron Stark ladder states resonate between the nearest neighbor wells, it is found that oscillator strengths of the direct (n = 0) ...

UNLABELLED BACKGROUND A significant proportion of surgical patients are unintentionally harmed during their hospital stay. Root Cause Analysis (RCA) aims to determine the aetiology of adverse incidents that lead to patient harm and produce a series of recommendations, which would minimise the risk of recurrence of similar events, if appropriately applied to clinical practice. A review of the...

Isolates of Mycobacterium avium-intracellulare (MAI) form multiple colony types named red-opaque, white-opaque, red-transparent (RT), and white-transparent (WT). The newly discovered WT morphotype is multidrug resistant relative to other variants in vitro. To determine whether the WT morphotype occurs in humans, 32 MAI-positive clinical samples from 2 sites were plated directly onto indicator a...

Analyses of red pepper extracts which had been pretreated with lipase type VII (EC 3.1.1.3.) from Candida rugosa showed for the first time pepper carotenoid esters to be substrates of this enzyme. However, the extent of enzymatic hydrolysis depends on the respective carotenoid and was not quantitative compared to chemical saponification. After enzymatic cleavage, 67-89% of total capsanthin, 61-...

Design Formalin-fixed, paraffin-embedded tissue microarrays (TMAs) consisting of malignant and metastatic melanoma, including SCM and DM (n = 72), were stained by immunohistochemistry and compared in a direct study using a mouse monoclonal SOX10 [BC34] (nuclear), a Pan Melanoma antibody cocktail (cytoplasmic) (Biocare Medical) and a polyclonal S100 antibody (cytoplasmic/ nuclear) (Dako). TMA ti...

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In this study, the Fenton process was used to investigate the color removal efficiency of Acid Red 52 and Basic Red 18 dye solutions by direct chemical oxidation. Color and chemical oxygen demand (COD) was successfully removed more than 99% and up to 92% respectively. This article would provide an easy assessment of the viability of using Fenton reagent in acidic conditions, so it is a prom...

The effects of Russell’s viper venom on blood coagulation, platelets and fibrinolysis were studied after injecting MLD, 1⁄2 MLD and 1:10 MLD intramuscularly in rabbits. RVV was shown to be a strong coagulant in vivo resulting in thrombocytopenia, prolongation of PT, APTT, Thrombin Time and fall of fibrinogen levels. Process of intravascular clotting was very acute in animals receiving MLD and 1...

Multinuclear and dendritic iron-nitrile piano-stool cationic complexes were synthesized in quantitative yield by a single-step synthesis involving visible-light photolysis of the complex [CpFe(eta(6)-toluene)][PF6]. This synthetic strategy was applied to mono-, bis- and tris-nitrile ligands and to new nitrile-terminated dendrimers containing 9, 27, and 81 tethers. All the synthesized products a...