The TBDPS protected glycolate derivative of thiol auxiliary 1 is readily prepared (3 steps, 80% overall yield) and has been shown to give excellent anti:syn selectivity (>97:3) and high facial selectivity (88:12 to 97:3) in glycolate aldol reactions with a range of aldehydes (75-87% isolated yield major diastereomer). In contrast, its benzyl protected counterpart displays more versatility with ...

the objective of this study was to evaluate the effects of supplementation of different level protein diets with rumen protected methionine and lysine on performance and ruminal parameters in holstein dairy cows when in their early lactation. twenty one dairy cows in their early lactations were assigned to three treatments in a randomized block design experiment of a 35-d duration period. diets...

Saving water is a major challenge to increase environmental sustainability, particularly in semi-arid regions where most table grapes are produced. Water use driven by atmospheric demand, which combines effects of solar radiation (prominent factor), wind, air temperature and humidity. Covering with transparent plastics spread many regions. Covers lower incoming wind speed, changing This study a...

BACKGROUND Protected Mealtimes is an intervention developed to address the problem of malnutrition in hospitalised patients through increasing positive interruptions (such as feeding assistance) whilst minimising unnecessary interruptions (including ward rounds and diagnostic procedures) during mealtimes. This clinical trial aimed to measure the effect of implementing Protected Mealtimes on the...

Loss of genetic diversity can be due to a variety of causes and might take place unnoticed even in widespread and frequent species. In situ reserves can be a very efficient method of protecting genetic diversity in tree species if they are sufficiently large to sustain adequate populations and spatially well distributed to protect populations adapted to a range of environmental conditions. We u...