Results 31 to 40 of about 2,093,866 (195)

Degradation changes stable carbon isotope depth profiles in palsa peatlands [PDF]

open access: yes, 2014
Palsa peatlands are a significant carbon pool in the global carbon cycle and are projected to change by global warming due to accelerated permafrost thaw. Our aim was to use stable carbon isotopes as indicators of palsa degradation.
Leifeld, J.   +5 more
core   +2 more sources

Poly(3-Hydroxybutyrate) Biosynthesis from [U-13C6]D-Glucose by Ralstonia eutropha NCIMB 11599 and Recombinant Escherichia coli

open access: yesMicrobiology Research, 2023
The use of stable isotope-labeled polymers in in situ biodegradation tests provides detailed information on the degradation process. As isotope-labeled raw chemicals are generally expensive, it is desirable to prepare polymer samples with high production
Ramamoorthi M. Sivashankari   +2 more
doaj   +1 more source

Understanding Muscle Protein Dynamics: Technical Considerations for Advancing Sarcopenia Research [PDF]

open access: yesAnnals of Geriatric Medicine and Research, 2020
Sarcopenia, which is the loss of muscle mass and strength that occurs with aging, involves imbalanced muscle protein turnover (i.e., protein breakdown exceeding synthesis), which in turn exacerbates other clinical conditions such as type 2 diabetes ...
Il-Young Kim   +3 more
doaj   +1 more source

gQuant, an Automated Tool for Quantitative Glycomic Data Analysis

open access: yesFrontiers in Chemistry, 2021
MALDI-MS-based glycan isotope labeling methods have been effectively and widely used for quantitative glycomics. However, interpretation of the data produced by MALDI-MS is inaccurate and tedious because the bioinformatic tools are inadequate.
Jiangming Huang   +7 more
doaj   +1 more source

Triple SILAC identified progestin-independent and dependent PRA and PRB interacting partners in breast cancer

open access: yesScientific Data, 2021
Measurement(s) progesterone receptor • isoform Technology Type(s) affinity purification method • stable isotope labeling by amino acids in cell culture Factor Type(s) progestin presence • biological replicate Machine-accessible metadata file describing ...
Prangwan Pateetin   +4 more
doaj   +1 more source

Differentiated Study of Constituents between Organic Milk and Ordinary Milk by Stable Isotope Ratio and UPLC-Q-Orbitrap

open access: yesShipin gongye ke-ji, 2023
Objective: To prevent some illegal companies driven by interests from arbitrarily labeling "organic" to deceive consumers using ways such as counterfeiting, forgery, and shoddy food.
Xuemei NIE, Yun XIE, Bozhou XU, Xiuli XU
doaj   +1 more source

Simultaneous Raman and Infrared Spectroscopy of Stable Isotope Labelled Escherichia coli

open access: yesSensors, 2022
We report the use of a novel technology based on optical photothermal infrared (O-PTIR) spectroscopy for obtaining simultaneous infrared and Raman spectra from the same location of the sample allowing us to study bacterial metabolism by monitoring the ...
Cassio Lima   +2 more
doaj   +1 more source

Stable isotope labelling of Ceratitis capitata [PDF]

open access: yesPlant Protection Science, 2019
The use of stable isotopes to label an insect species, the Mediterranean fruit fly Ceratitis capitata (Diptera: Tephidae) (medfly) was investigated. Labelling allows mating and life history characteristics to be investigated experimentally. 13C6-glucose was incorporated into the diet of medflies at various stages of development by adding it to larval ...
Hasan Al-Khshemawee   +2 more
openaire   +2 more sources

Production of stable isotope-labeled acyl-coenzyme A thioesters by yeast stable isotope labeling by essential nutrients in cell culture [PDF]

open access: yesAnalytical Biochemistry, 2015
Acyl-coenzyme A (CoA) thioesters are key metabolites in numerous anabolic and catabolic pathways, including fatty acid biosynthesis and β-oxidation, the Krebs cycle, and cholesterol and isoprenoid biosynthesis. Stable isotope dilution-based methodology is the "gold standard" for quantitative analyses by mass spectrometry. However, chemical synthesis of
Nathaniel W, Snyder   +9 more
openaire   +2 more sources

Trophic structure in a seabird host-parasite food web: insights from stable isotope analyses [PDF]

open access: yes, 2010
Ecological studies on food webs rarely include parasites, partly due to the complexity and dimensionality of host-parasite interaction networks. Multiple co-occurring parasites can show different feeding strategies and thus lead to complex and cryptic ...
Gómez-Díaz Elena   +3 more
core   +1 more source

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