The realization of capacity-augmenting schema changes on a shared database while providing continued interoperability to active applications has been recognized as a hard open problem. A novel three-pronged process, called transparent object schema evolution (TOSE), is presented that successfully addresses this problem. TOSE uses the combination of views and versioning to simulate schema change...

Sedimentation equilibrium (SE) analytical ultracentrifugation (AUC) is a gold standard for the rigorous determination of macromolecular buoyant molar masses and the thermodynamic study of reversible interactions in solution. A significant experimental drawback is the long time required to attain SE, which is usually on the order of days. We have developed a method for time-optimized SE (toSE) w...

transglucosy]ation. The enzyme also converted trehatose into ma]tose but was inactive on o-ther saccharides. The N-termina] amino acid of the enzyme was serine. The optimum pH and temperature were pH 7.5 and 200C, respective]y, The enzyme was stab]e in the range of pH 6,O-9.0 and up to 30eC for 60 min. The rate of conyeTsion of maltose ;nto trehalose was independent of the mattose concentration...

In this study, we aimed to identify the influencing factors that drive highway construction companies adopt smart technologies. Using expert interviews and scoring, collected interview data from 25 experts in field proposed TOSE framework based on TOE framework, identifying four dimensions fourteen factors. We analyzed results using Fuzzy DEMATEL-ISM method, then summarized findings according e...

Introduction Congenital glucose galactose malabsorption (CGGM) is a rare autosomal recessive disorder, which presents as a protracted diarrhoea in early neonatal life. It is due to a defect in sodium coupled transport of glucose and galac­ tose in the enterocyte (1). Diarrhoea in CGGM is osmotic, caused by accumulation of unabsorbed glucose and ga­ lactose in the intestine (2), which results in...

Angelika Preisfeld*, Gabriele Scholten-Beck, Hans Georg Ruppel Universität Bielefeld, Fakultät für Biologie, Postfach 100131, D-33501 Bielefeld, Bundesrepublik Deutschland Z. Naturforsch. 52c, 33-41 (1997); received September 20/0ctober 29, 1996 Deficiency, Euglena gracilis, Lectin Assay, Mucilage Biochemical and ultrastructural examinations on the pellicle of autotrophically grown Eu­ glena gr...

Two-year-old seedlings of Picea abies L., P. glauca L., P. mciriana L., Pinus sylvestris L. and Pseudotsuga menziesii L. were planted in a sample plot influenced by high concentrations of cement dust, and in an unpolluted (control) area in 1990. In 1994, the six-year-old trees were dug up in the pre-bud-break period. A comparative analysis of soluble sugars (glucose, fruc­ tose, sucrose, maltod...

Present knowledge regarding sugar transport by human intestine has been derived primarily by extrapolation of data from other species. Previous investigations, performed chiefly with everted sacs of hamster intestine, show that a sugar requires a specific structure before it can be transported by intestine against a concentration gradient , a process referred to as "active transport" (1, 2). Th...