منابع مشابه
World-line Green functions with momentum and source conservations
Based on the generating functional method with an external source function, a useful constraint on the source function is proposed for analyzing the oneand two-loop world-line Green functions. The constraint plays the same role as the momentum conservation law of a certain nontrivial form, and transforms ambiguous Green functions into the uniquely defined Green functions. We also argue reparame...
متن کامل'Green mice' as a source of ubiquitous green cells.
The green fluorescent protein (GFP) is responsible for the green bioluminescence of the jellyfish Aequorea victoria. Many classes of GFP mutants exist that display modified fluorescence spectra and an increased extinction coefficient. We produced transgenic mouse lines with an 'enhanced' GFP (EGFP) cDNA under the control of a chicken beta-actin promoter and cytomegalovirus enhancer. All of the ...
متن کاملLine source emission modelling
Line source emission modelling is an important tool in control and management of vehicular exhaust emissions (VEEs) in urban environment. The US Environmental Protection Agency and many other research institutes have developed a number of line source models (LSMs) to describe temporal and spatial distribution of VEEs on roadways. Most of these models are either deterministic and/or statistical ...
متن کاملPropolis Diterpenes as a Remarkable Bio-Source for Drug Discovery Development: A Review
Propolis is one of the complex, but valuable, bio-sources for discovering therapeutic compounds. Diterpenes are organic compounds composed of four isoprene units and are known for their biological and pharmacological characteristics, such as antibacterial, anticancer, and anti-inflammatory activities. Recently, advancements have been made in the development of antibacterial and anticancer leads...
متن کاملLine-Source Switched-Oscillator Antenna
This paper extends the concept of an array of THz resonant elements to sets of distributed elements that can be used as the rows of an array.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1942
ISSN: 0028-0836,1476-4687
DOI: 10.1038/149273a0