Results 81 to 90 of about 70,014 (336)
Preparation and Certification of the Isotopic Reference Material IRMM-049d [PDF]
, 2011 A highly enriched 242Pu Isotopic Reference Material (IRMM-049d) has been prepared and certified for the 242Pu isotope amount content. The certified value of 3.666 8(18) x 10-7 mol 242Pu per g of solution was established by Isotope Dilution Mass ...
AREGBE Yetunde +6 more
core +1 more source
Strong Proton‐Phonon Coupling Drives Fast Ion Transport in Perovskites
Advanced Science, EarlyView.Experimental and computational phonon analysis of ABO3‐type proton conductor BaSnO3 shows that substitution on the B‐site with yttrium forms an imaginary phonon mode which is instrumental for the function as proton conductor. This overcompensates the adverse proton trapping effect of the yttrium.
Alexey Rulev +8 more
wiley +1 more source
GC-MS METHODS FOR AMINO ACIDS DETERMINATION IN DIFFERENT BIOLOGICAL EXTRACTS
Studia Universitatis Babes-Bolyai Chemia, 2016 Sensitive, precise and accurate analytical methods for free amino acids determination in biological samples were developed. Purification by ion exchange technique was followed by two steps derivatization method to obtain trifluoroacetyl ester ...
Monica CULEA +4 more
doaj
Partial (13)C isotopic enrichment of nucleoside monophosphates: useful reporters for NMR structural studies [PDF]
, 2005 Analysis of the (13)C isotopic labeling patterns of nucleoside monophosphates (NMPs) extracted from Escherichia coli grown in a mixture of C-1 and C-2 glucose is presented. By comparing our results to previous observations on amino acids grown in similar
Kishore, Anita I. +2 more
core +2 more sources
Advanced Science, EarlyView.This study finds that the interaction between ABA‐OsCIPK2‐OsSWEET1A reduces the allocation of methane producing bacteria carbon source (acetic acid) content to the rhizosphere soil of ratoon season rice, thereby reducing methane emissions. Abstract Rice paddies are a major, persistent source of atmospheric methane (CH4), emission rates depend on the ...
Jingnan Zou +14 more
wiley +1 more source
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2010 Avaliou-se a possibilidade de redução da concentração do fósforo inorgânico em dietas formuladas para suínos de acordo com o conceito de proteína ideal, utilizando-se um modelo experimental para o estudo do fluxo do P no metabolismo animal. Utilizaram-se
J.A. Moreira +5 more
doaj +1 more source
Use of isotope dilution method to predict bioavailability of organic pollutants in historically contaminated sediments. [PDF]
, 2014 Many cases of severe environmental contamination arise from historical episodes, where recalcitrant contaminants have resided in the environment for a prolonged time, leading to potentially decreased bioavailability.
Bao, Lian-Jun +4 more
core +2 more sources
Dynamics of the Mammalian Placental Metabolome in Placentogenesis and Embryonic Development
Advanced Science, EarlyView.This study identifies three metabolic stages (E8.5, E9.5–10.5, E11.5–14.5) and two transition periods (E8.5–9.5, E10.5–11.5) in mouse placental development. NAD(H) emerges as a key dynamic metabolite that enhances embryonic growth through accelerated segmentation and increased proliferation of mouse embryonic stem cell (mESC)‐induced presomitic ...
Gang Chen +11 more
wiley +1 more source
Trace Element Estimation – Methods & Clinical Context [PDF]
, 2005 Understanding the effects of trace metals on human health is as complex as it is fascinating. As mentioned earlier, the high concentrations may prove toxic, as also, depletion in the concentration of the essential trace elements may cause various ...
Rao Nanjunda, Dr. Ananth
core +1 more source
Oxygen isotopic ratios in cool R Coronae Borealis stars [PDF]
, 2010 We investigate the relationship between R Coronae Borealis (RCB) stars and hydrogen-deficient carbon (HdC) stars by measuring precise 16O/18O ratios for five cool RCB stars.
Alvarez +17 more
core +3 more sources