Results 61 to 70 of about 140,334 (356)

A stable isotope dilution method for a highly accurate analysis of karrikins

open access: yesPlant Methods, 2021
Background Karrikins (KARs) are recently described group of plant growth regulators with stimulatory effects on seed germination, seedling growth and crop productivity. So far, an analytical method for the simultaneous targeted profiling of KARs in plant
Jakub Hrdlička   +4 more
doaj   +1 more source

A Dilute and Shoot Strategy for Determining Alternaria Toxins in Tomato-Based Samples and in Different Flours Using LC-IDMS Separation

open access: yesMolecules, 2021
Alternaria toxins are emerging mycotoxins whose regulation and standardization are in progress by the European Commission and the European Committee for Standardization. This paper describes a dilute and shoot approach to determine five Alternaria toxins
Ádám Tölgyesi   +4 more
doaj   +1 more source

A chemical ionization mass spectrometer for continuous underway shipboard analysis of dimethylsulfide in near-surface seawater [PDF]

open access: yes, 2009
A compact, low-cost atmospheric pressure, chemical ionization mass spectrometer ("mini-CIMS") has been developed for continuous underway shipboard measurements of dimethylsulfide (DMS) in seawater.
de Bruyn, W. J.   +4 more
core   +2 more sources

A Bifunctional T3SS‐Effector Simultaneously Cleaves Host MAP Kinase and Inhibits PPM1A Phosphatase

open access: yesAdvanced Science, EarlyView.
Pathogenic bacteria exploit the metalloprotease effector NleD to subvert host defenses. Structural, biochemical, and infection analyses reveal a bifunctional mechanism by which NleD binds and inhibits the host phosphatase PPM1A while preserving its proteolytic activity against MAPKs.
Yaakov Socol   +18 more
wiley   +1 more source

Sexual Size Dimorphism and Body Condition in the Australasian Gannet [PDF]

open access: yes, 2015
Funding: The research was financially supported by the Holsworth Wildlife Research Endowment. Acknowledgments We thank the Victorian Marine Science Consortium, Sea All Dolphin Swim, Parks Victoria, and the Point Danger Management Committee for logistical
A Bunce   +89 more
core   +8 more sources

Applications of Isotope Dilution Mass Spectrometry in Clinical Reference Measurement System

open access: yesJournal of Isotopes, 2018
Traceability is essential for standardization and harmonization of clinical analytical results. The measurement result can be comparable to a reference through a documented unbroken chain of calibrations each contribution to the measurement uncertainty ...
QUAN Can;LI Hongmei
doaj   +1 more source

Climate Change Threatens Micronutrient Density of European Winter Wheat

open access: yesAdvanced Science, EarlyView.
Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao   +17 more
wiley   +1 more source

Influence of Fermentation Water on Stable Isotopic D/H Ratios of Alcohol Obtained from Concentrated Grape Must

open access: yesMolecules, 2020
According to Organisation Internationale de la vigne et du vin (OIV) standards, when analysing the stable isotope ratio of deuterium to hydrogen D/H at the methyl (I) and methylene (II) site of ethanol from concentrated must, a dilution with tap water is
Matteo Perini   +4 more
doaj   +1 more source

Quantification of growth hormone in serum by isotope dilution mass spectrometry [PDF]

open access: yes, 2009
Inter-assay variation of antibody based routine tests is hampering comparability of measurement results for growth hormone (GH) between different laboratories and decision making in clinical practice. Here it is demonstrated, that quantification of GH by
André   +4 more
core   +1 more source

Fueling Incubation: Differential Use of Body Stores in Arctic and Temperate-breeding Barnacle Geese (Branta leucopsis) [PDF]

open access: yes, 2010
We compared the use of body stores in breeding Barnacle Geese (Branta leucopsis) in traditional Arctic colonies in the Barents Sea with that in recently established temperate-zone breeding colonies in the Baltic Sea and North Sea by studying female body ...
Drent, R.H.   +3 more
core   +5 more sources

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