Results 51 to 60 of about 1,345,257 (199)
Epilepsia, EarlyView.Abstract Objective Epileptic seizures are generated in cerebral networks that propagate ictal and interictal activity. The structure of cerebral networks underpinning epileptic activity can be inferred from diffusion‐weighted magnetic resonance imaging (DWI).
Peter N. Taylor +9 more
wiley +1 more source
Measuring acetic and formic acid by proton-transfer-reaction mass spectrometry: sensitivity, humidity dependence, and quantifying interferences [PDF]
Atmospheric Measurement Techniques, 2015 We present a detailed investigation of the factors governing the quantification of formic acid (FA), acetic acid (AA), and their relevant mass analogues by proton-transfer-reaction mass spectrometry (PTR-MS), assess the underlying fragmentation pathways ...
M. Baasandorj +4 more
doaj +1 more source
Mass Spectrometry Reviews, EarlyView.ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt +4 more
wiley +1 more source
Environmental Pollution, 2019 Within the outline of air quality studies at metropolitan city, the mixing ratios of seven selected volatile organic compounds (VOCs) were measured during December 2015 (winter) at an urban site of Pune.
S. Maji, G. Beig, R. Yadav
semanticscholar +1 more source
Rapid Communications in Mass Spectrometry, EarlyView.ABSTRACT Rationale Ions trapped within a Penning cell (ICR) travel periodic orbits whose frequencies are dependent on their mass‐to‐charge ratio and the value of the magnetic field passing through the trap. Fourier transformation (FT‐ICR) decomposes the signal induced in the detection circuit by the rotation of the ions in the cell after the ...
Patrick Arpino, Michel Heninger
wiley +1 more source
Technical note: Water vapour concentration and flux measurements with PTR-MS [PDF]
Atmospheric Chemistry and Physics, 2006 Abstract. The most direct approach for measuring the exchange of biogenic volatile organic compounds between terrestrial ecosystems and the atmosphere is the eddy covariance technique. It has been applied several times in the last few years using fast response proton-transfer-reaction mass spectrometry (PTR-MS).
Ammann, C. +3 more
openaire +5 more sources
The Arabidopsis NPF7.2 mediates coumarin uptake for root iron acquisition
New Phytologist, EarlyView.Summary Iron (Fe) is a transition metal necessary for achieving essential physiological processes throughout the plant lifecycle. In Arabidopsis thaliana, secreting Fe‐mobilizing coumarins (FMC) is a key mechanism enabling roots to acquire nonbioavailable Fe present in soils.
Shunsuke Watanabe +7 more
wiley +1 more source
Plant Biotechnology Journal, EarlyView.ABSTRACT Selenium (Se) is a vital micronutrient for humans, with important functions for health and anti‐cancer properties. Organic Se shows higher antioxidant activity and much lower toxicity compared to inorganic Se, making it safer for use. Selenomethionine (SeMet) is one of the primary forms of organic Se.
Yang Yang +11 more
wiley +1 more source
Atmospheric Measurement Techniques, 2019 . Herein we report on the first successful airborne deployment of the CHemical Analysis of AeRosol ONline (CHARON) particle inlet which allowed us to measure the chemical composition of atmospheric submicrometer particles in real time using a state-of ...
F. Piel +4 more
semanticscholar +1 more source
Plant Biotechnology Journal, EarlyView.ABSTRACT Soybean is a critical source of protein and vegetable oil worldwide. Expanding its cultivation into salinity lands represents a promising strategy for increasing production; however, soil salinity severely limits soybean growth by disrupting physiological and metabolic homeostasis.
Wanying Zhang +13 more
wiley +1 more source