Neutral and alkaline invertase were identified in cells of a suspension culture of carrot (Daucus carota L.) and purified to electrophoretic homogeneity. Neutral invertase is an octamer with a molecular mass of 456 kD and subunits of 57 kD, whereas alkaline invertase is a tetramer with a molecular mass of 504 kD and subunits of 126 kD. Both enzymes had sharp pH profiles, with maximal activities...

174 Introduction 175 Methodology 178 Procedure 178 Subjects 179 Measures 179 Data Analysis 183 Results 184

The micro-conveyor is a 9 × 9 mm manipulation surface able to move millimeter-sized planar objects in the four cardinal directions using air flows. Thanks to a specific design, the air flow comes through a network of micro-channels connected to an array of micro-nozzles. Thus, the micro-conveyor generates an array of tilted air jets that lifts and moves the object in the required direction. In ...

The microstructural development of 316L stainless steel (SS) was investigated over a wide range systematically varied laser powder bed fusion (LPBF) parameters, such as power, scan speed, hatch spacing and volumetric energy density. Relative density, melt pool width depth, the size sub-grain cellular structure were quantified related to temperature field estimated by Rosenthal solution. Use den...

human immunodeÞ ciency virus positive North Indian patients. World J Gastroenterol 2006;12:6879-83. 3. Sungkanuparph S, Vibhagool A, Manosuthi W, Kiertiburanakul S, Atamasirikul K, Aumkhyan A, et al. Prevalence of hepatitis B virus and hepatitis C virus coinfection with human immunodeÞ ciency virus in Thai patients: A tertiary-care-based study. J Med Assoc Thai 2004;87:1349-54. 4. Griemberg G, ...

A SURVEY was undertaken to find the prevalence of asymptomatic bacteriuria in people in normal health who were patients of members of the North-west Faculty of the Royal College of General Practitioners. Midstream specimens were collected from 341 males and 456 females seen in visits to 19 practices in Lancashire and Cheshire. Three males and 45 females had > 10(5) bacteria/ml; three males and ...

The ability of some fishes to live in both sea water and fresh water has attracted a great deal of interest. Many euryhaline fishes are difficult to rear in laboratory conditions ; some do not survive in completely fresh water, and migratory fishes are often euryhaline for only limited periods during their life-history. Species of the genus Tilapia have none of these disadvantages; they are eas...

The Inner Tracker System of the HERA-B experiment at DESY is build by groups 1 at the Universities of Heidelberg, Siegen and Zürich. The system consists of 184 Microstrip-Gas-Chambers (MSGC) with a total number of 147 456 electronic channels. The detectors have to cope with particle fluxes up to 25 kHz mm−2 and to tolerate radiation doses of 1 Mrad per year. During the development of these cham...