Search results for "Kali"
showing 10 items of 823 documents
Interaction of metal ions with N-glycosylamines: isolation and characterization of the products of 4,6-O-benzylidene-N-(o-carboxyphenyl)-β-D-glucopyr…
2001
Metal-ion complexes of Li+, Na+, K+, Mg2+, Ca2+, Ba2+, Pb2+, Cd2+, Hg2+ with 4,6–O–benzylidene–N–(o–carboxyphenyl)–β–D–glucopyranosylamine were synthesized and isolated as solid products and characterized by analytical means as well as by spectral techniques, such as, 1H and 13C NMR, FTIR, absorption, FAB mass spectrometry, optical rotation and CD. While the alkali metal ions formed ML type of complexes, the other metal ions formed ML2 type complexes. Molecular weights of the complexes of Li+, Na+ and K+ were established based on the molecular-ion peaks in the FAB mass spectra. The saccharide portion remians in the β-anomeric form even after the complexation. The spectral data, as well as t…
Laser synthesis of ultracold alkali metal dimers: optimization and control
2015
Die Bilh�mie ? Eine seltene komplikation nach schwerster leberruptur
1990
Die traumatische Bilhdmie nach schwerster Leberverletzung ist ein seltenes Krankheitsbild und durch eine hohe Letalitat gekennzeichnet. Klinisch imponierten eine massive Hyperbilirubinamie sowie Erhohung der Gallensauren im Serum bei relativ normalen Leberzellenzymen. Pathophysiologisch liegt eine Verbindung vom Gallenwegssystem zum Niederdrucksystem der Lebervenen vor. Zur Diagnosesicherung erscheint uns neben der klinischen Symptomatik and nach vorausgegangener Sonographie and Computertomographie die ERCP als geeignetstes Untersuchungs- and Nachweisverfahren. Als Therapiemoglichkeiten kommen sowohl operative Verfahren als auch wie hier dargestellt eine erfolgreiche konservative Therapie i…
Successive alkalinity producing system for the treatment of acid sulphate soil runoff: preliminary results of a field trial
2005
A successive alkalinity producing system (SAPS) has been investigated as a potential passive treatment option for acid, metal containing runoff from acid sulphate soil. A pilot-scale system was installed at an agricultural land site in Rintala embankment area in mid-western Finland. The experimental layout consists of three parallel treatment units: two different SAPS cells and one limestone-filled cell for comparison of performance. The SAPS cells are composed of a bottom layer of limestone and a top layer of compost supplemented with sand. One of the SAPS cells contains sulphate-rich, waste gypsum mixed with the compost layer in order to enhance the metal reduction by sulphate reducing-ba…
Formation of secondary carbonates and native sulphur in sulphate-rich Messinian strata, Sicily
2010
Abstract Microbially formed authigenic carbonates accompanied by native sulphur are present in the ‘Calcare Solfifero’ below a thick succession of gypsum deposited during the Messinian salinity crisis in Sicily. We sampled these carbonates and associated sulphur in five former sulphur mines to subject them to a detailed petrographic and geochemical study in order to explore their different modes of formation. Native sulphur formed in conjunction with microbial sulphate reduction, which is reflected in its depletion in 34S (δ34S values as low as − 2‰ vs. V-CDT) and an enrichment of 34S in the residual sulphate (δ34S values as high as + 61‰). The oxidation of organic matter by sulphate reduct…
Reduced membrane-bound alkaline phosphatase does not affect binding of Vip3Aa in a Heliothis virescens resistant colony
2020
The Vip3Aa insecticidal protein from Bacillus thuringiensis (Bt) is produced by specific transgenic corn and cotton varieties for efficient control of target lepidopteran pests. The main threat to this technology is the evolution of resistance in targeted insect pests and understanding the mechanistic basis of resistance is crucial to deploy the most appropriate strategies for resistance management. In this work, we tested whether alteration of membrane receptors in the insect midgut might explain the >
Inorganic Polyphosphate in Human Osteoblast-like Cells
1998
Significant amounts of inorganic polyphosphates and of polyphosphate-degrading exopolyphosphatase activity were detected in human mandibular-derived osteoblast-like cells. The amount of both soluble and insoluble long-chain polyphosphate in unstimulated osteoblast-like cells was higher than in human gingival cells, erythrocytes, peripheral blood mononuclear cells, and human blood plasma. The cellular content of polyphosphate in osteoblast-like cells strongly decreased after a combined treatment of the cells with the stimulators of osteoblast proliferation and differentiation, dexamethasone, beta-glycerophosphate, epidermal growth factor, and ascorbic acid. The amount of soluble long-chain p…
Dzīves kvalitāte pacientiem ar Hronisku Obstruktīvu Plaušu Slimību
2016
Bakalaura darba tēma ir ’’Dzīves kvalitāte pacientiem ar hronisku obstruktīvu plaušu slimību’’. Pēc Pasaules Veselības Organizācijas datiem hroniska obstruktīva plaušu slimība (HOPS) attīstās 40 – 50% ilgstošu smēķētāju un 2020. gadā tā būs trešais biežākais nāves iemesls. HOPS ir progresējoša slimība un tas ietekmē pacienta dzīves kvalitāti. Neskatoties uz medicīnas tehnoloģiju attīstību ārstēšanā svarīga loma ir pacienta līdzestībai. Izvirzītais pētījuma darba mērķis ir noskaidrot dzīves kvalitāti pacientiem ar hronisku obstruktīvu plaušu slimību un hipotēze- dzīves kvalitāti, pacientiem ar hronisku obstruktīvu plaušu slimību, ietekmē pacientu līdzestība ārstēšanas gaitā. Darbā tika pieli…
High-contrast dark resonances on the D1 line in cesium nanocell: the advantages compared with the other alkali D lines
2015
Electromagnetically induced transparency (EIT) effect in a -system formed by Cs atoms line, enclosed in nanometric-thin cells, is studied both experimentally and theoretically for the first time. T...
Alkaline hydrolysis/methylation-acetylation: a new technique for ultrastructural DNA cytochemistry.
1991
SUMMARY A new technique for the visualization of DNA-containing structures in electron microscopy is described. Samples of glutaraldehyde-fixed bone marrow from rats were subjected to alkaline hydrolysis to remove RNA and the phosphate of phospho-proteins, followed by a combined blockage of protein carboxyl and amino groups through methylation-acetylation. After uranyl acetate staining of epoxy-embedded ultrathin sections, chromatin from all cell types showed a highly selective and intense electron opacity. Staining methods for DNA were also positive in semithin sections. This simple procedure could be very useful in ultrastructural cytochemistry of DNA and chromatin.