Sökresultat

Filtyp

Din sökning på "*" gav 529043 sökträffar

State-centered versus nonstate-driven organic food standardization: A comparison of the US and Sweden

Organic food standardization is an increasingly important strategy for dealing with consumer concerns about the environment, animal welfare, health, and the economic structure of food production. But the ways in which this consumer-oriented strategy is introduced, organized, and debated vary considerably across countries. In Sweden, a nongovernmental organization [KRAV (Association for Control of

Escherichia coli TolA tolerates multiple amino-acid substitutions as revealed by screening randomized variants for membrane integrity and phage receptor function

Escherichia coli TolA is a cytoplasmic membrane protein required for outer membrane integrity and the translocation of F-specific filamentous (Ff) bacteriophage DNA. Both phage infection and membrane integrity depend on several TolA interactions, e.g. those of the TolA C-terminal domain (TolAIII). Membrane integrity involves interaction with two host proteins and phage translocation requires direc

Properties of arrowroot starch treated with aqueous HCl at ambient temperature

Arrowroot starch was acid-treated using 2.2 M HCl at 29 to 30degreesC for durations of 0 to 72 h, and properties of the control and modified samples were compared. Increasing length of acid treatment produced a progressive decline in amylose blue value, intrinsic viscosity, and swelling power, as well as an increase in free sugars and solubility. Differential scanning calorimetry (DSC) studies hig

EMERALD & EMIT – worldwide computer aided education and training packages in medical physics

This paper describes the development of two web based education and training packages EMERALD and EMIT designed to meet the training needs of professional medical physicists. The programme has been developed over a number of years by collaboration between hospitals and universities across Europe. The programme concentrates on assisting competence development in five initial areas; diagnostic radio

Preference among preferences as a method for obtaining a higher ordered metric scale

A method is presented for collecting data which yield a scale on which the entities are ranked in preference and all combinations of value distances are ranked (higher-ordered metric scale). The method is based on the concept of secondary preference, i.e. preference among preferences. This method is compared with a classical method based on 50–50 game comparison. Two empirical studies are presente

Role of cell therapy in Parkinson disease.

Clinical studies involving intrastriatal transplantation of embryonic mesencephalic tissue in patients with Parkinson disease (PD) have provided proof-of-principle for the cell replacement strategy in this disorder. The grafted dopaminergic neurons can reinnervate the denervated striatum, restore regulated dopamine release and movement-related frontal cortical activation, and produce significant s

Rhythm and Intonation in Halh Mongolian

This dissertation provides the first comprehensive account of the prosody of Halh (Khalkha) Mongolian as spoken in Ulaanbaatar, the capital of the Republic of Mongolia. The phonological description is based on acoustic analysis of speech data collected from nine Mongolian-speakers. The dissertation consists of two major parts, the first dealing with rhythmic and the second with tonal properties of

Catalytic hot gas cleaning of fuel gas from an air-blown pressurized fluidized-bed gasifier

Catalytic ammonia decomposition and tar reduction by a Ni catalyst were studied using a feed gas from a pilot-scale pressurized fluidized-bed gasifier. Tests were conducted in a tubular fixed-bed reactor with a space time of about 3 s at 800-900 degreesC and 12 atm. Ammonia removals of 35-95% and light tar conversions of 90-95% were observed. The amount of the light hydrocarbons was found to have