نتایج جستجو برای: fractionation

تعداد نتایج: 19571  

Journal: :Nature communications 2014
Gaia Donati Tim J Bartley Xian-Min Jin Mihai-Dorian Vidrighin Animesh Datta Marco Barbieri Ian A Walmsley

Quantum properties of optical modes are typically assessed by observing their photon statistics or the distribution of their quadratures. Both particle- and wave-like behaviours deliver important information and each may be used as a resource in quantum-enhanced technologies. Weak-field homodyne (WFH) detection provides a scheme that combines the wave- and particle-like descriptions. Here we sh...

2017
Zhi Han Travis Johnson Jie Zhang Xuan Zhang Kun Huang

[This corrects the article DOI: 10.1155/2017/3035481.].

Journal: :Communications earth & environment 2023

Abstract Uranium isotopic signatures in the rock record are utilized as a proxy for past redox conditions on Earth. However, these display significant variability that complicates interpretation of specific conditions. Using model uranium-reducing bacterium, Shewanella oneidensis MR-1, we show abundance electron donors (e.g., labile organic carbon) controls uranium isotope fractionation, such h...

Salvia genus is one of the largest genera of the Lamiaceae family. Its species have been used for a wide variety of disorders in the local traditional medicine systems. Therefore, the genus has been the subject of several phytochemical and biological studies. The aim of the study was to identify the major antioxidant compound(s) from the methanol extract of Salvia verticillata using activity-gu...

2011
Leonel Sternberg Patricia Fernandes Vendramini Ellsworth

Recent findings based on the oxygen isotope ratios of tree trunk cellulose indicate that the temperature of biomass production in biomes ranging from boreal to subtropical forests converge to an average leaf temperature of 21.4°C. The above conclusion has been drawn under the assumption that biochemically related isotopic fractionations during cellulose synthesis are not affected by temperature...

Journal: :Applied and environmental microbiology 2000
D Hunkeler R Aravena

Carbon isotope fractionation during aerobic mineralization of 1, 2-dichloroethane (1,2-DCA) by Xanthobacter autotrophicus GJ10 was investigated. A strong enrichment of (13)C in residual 1,2-DCA was observed, with a mean fractionation factor alpha +/- standard deviation of 0.968 +/- 0.0013 to 0.973 +/- 0.0015. In addition, a large carbon isotope fractionation between biomass and inorganic carbon...

Journal: :Chest 1989
N M Bleehen

69S and a reduced field which encompasses all known tumor is treated on the same day as the large field two or three times per week (an interval of 4 + h is required between fractions) to total doses of 63-70.2 Gy in 5-5#{189}weeks, Acute and late reactions were found to be tolerated such that interruption of treatment (“split”) was avoided with HFX. Data suggest that acute reactions were more ...

2017
Elisabeth Govaert Katleen Van Steendam Sander Willems Liesbeth Vossaert Maarten Dhaenens Dieter Deforce

For data-independent acquisition by means of sequential window acquisition of all theoretical fragment ion spectra (SWATH), a reference library of data-dependent acquisition (DDA) runs is typically used to correlate the quantitative data from the fragment ion spectra with peptide identifications. The quality and coverage of such a reference library is therefore essential when processing SWATH d...

Journal: :Journal of visualized experiments : JoVE 2009
Chuck Witkowski Jay Harkins

The GELFREE 8100 Fractionation System is a novel protein fractionation system designed to maximize protein recovery during molecular weight based fractionation. The system is comprised of single-use, 8-sample capacity cartridges and a benchtop GELFREE Fractionation Instrument. During separation, a constant voltage is applied between the anode and cathode reservoirs, and each protein mixture is ...

Journal: :iranian journal of pharmaceutical research 0
bahman nickavar department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences javad rezaee department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran azar nickavar aliasghar children’s hospital, iran university of medical sciences, tehran, iran

salvia genus is one of the largest genera of the lamiaceae family. its species have been used for a wide variety of disorders in the local traditional medicine systems. therefore, the genus has been the subject of several phytochemical and biological studies. the aim of the study was to identify the major antioxidant compound(s) from the methanol extract of salvia verticillata using activity-gu...

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