Results 81 to 90 of about 35,305 (286)
Decoupling climate and human impacts on the nitrogen cycle during the Irish Bronze Age
Journal of Quaternary Science, EarlyView.ABSTRACT Disentangling climate variability and human activity in past nitrogen cycling is key to understanding ecosystems. Previous studies in Ireland observed a widespread, permanent shift in terrestrial nitrogen cycling during Later Prehistory, potentially linked to intensifying land‐use.
Sarah Ferrandin +2 more
wiley +1 more source
Carbon Isotope Ratio Analysis of Authentic and Commercial Essential Oils of Lemon Balm
Natural Product Communications, 2008 Several commercial and authentic essential oils of lemon balm ( Melissa officinalis L.) were investigated for the carbon isotope ratio of their main compounds (citral as its enantiomers geranial and neral, citronellal, β-caryophyllene, germacrene D and ...
Susanne Wagner +3 more
doaj +1 more source
Applied Sciences, 2019 Inexpensive (<$300) real-time particulate matter monitors (IRMs), using laser as a light source, have been introduced for use with a Wi-Fi function enabling networking with a smartphone.
Sungroul Kim, Sujung Park, Jeongeun Lee
doaj +1 more source
Journal of Quaternary Science, EarlyView.Abstract The transition from the Last Glacial Maximum to the Late Glacial marked a shift from the cold conditions of Greenland Stadial‐2 (GS‐2) to the warmer phases of Greenland Interstadial‐1 (GI‐1), enabling the reoccupation of Alpine regions by Late Palaeolithic hunter‐gatherers.
Mahym Amanova +2 more
wiley +1 more source
Yankuang ceshi, 2014 The technique of Isotope Ratio Mass Spectrometry(IRMS)is the gold standard of accurate and precise analyses for all sorts of isotopic relative abundance amongst analytical techniques.
ZHA Xiang-ping +2 more
doaj +2 more sources
Lipids, EarlyView.ABSTRACT Increasing evidence suggests that dairy consumption may decrease the risk of chronic diseases. However, this association remains unclear due to methodological limitations. As a part of a secondary analysis, we used compound‐specific stable isotope analysis to increase the accuracy of the dairy FA biomarkers (15:0, 17:0), considering that each ...
Camilla Parzanini +8 more
wiley +1 more source
Semantic web services for simulation component reuse and interoperability: An ontology approach [PDF]
, 2010 Commercial-off-the-shelf (COTS) Simulation Packages (CSPs) are widely used in industry primarily due to economic factors associated with developing proprietary software platforms.
Bell, D +5 more
core
Clarifying interoperability: The SISO CSPI PDG standard for commercial off-the-shelf simulation package interoperability reference models [PDF]
, 2008 Commercial-off-the-shelf simulation packages (CSPs), visual interactive modelling environments such as Arena, Anylogic, Flexsim, Simul8, Witness, etc., are important "black box" software tools that support the development, experimentation and ...
Strassburger, S +2 more
core +1 more source
First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique
Mass Spectrometry Reviews, EarlyView.ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley +1 more source
Differentiation of Plant and Animal‐Derived Cholesterol Using irm‐13C NMR and IRMS
Magnetic Resonance in Chemistry, EarlyView.Determining and certifying the origin of ingredients, starting materials, and excipients used in manufactured goods like cosmetics and medicines can be difficult. In this report, we describe a robust approach for identifying the origin of cholesterol, a component of myriad consumer products using irm‐13C NMR and IRMS to differentiate plant versus ...
Anika M. Singh +3 more
wiley +1 more source