Results 121 to 130 of about 201,320 (259)
Occurrence of Polar Polycyclic Aromatic compounds at contaminated sites
International audienceBackground It has recently been recognized that soils contaminated with polycyclic aromatic hydrocarbons (PAHs) may contain significant amounts of other polycyclic aromatic compounds (PACs) as well.
Saada, Alain +7 more
core
Potential and actual trace gas fluxes in Arctic terrestrial ecosystems
This paper provides an overview of results obtained through a number of studies of actual and potential trace gas exchanges in Eurasian and Greenlandic tundra ecosystems.
Christensen, Torben Røjle
core +1 more source
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
Study on influence of supercritical solvent polarity on diffusivity of polar and non-polar aroma compounds using supercrincal fluid extraction [PDF]
Supercritical fluid extraction (SFE) is an available and promising technique used to extract volatile compounds from natural products. SFE can be increased by optimizing the process conditions such as pressure, temperature, solvent f10wrate and addition ...
Azreen Ibrahim
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Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Reverse osmosis separation of polar organic compounds in aqueous solution
The reverse osmosis separation of polar organic compounds from water was examined. A total of 12 different reverse osmosis membranes were tested with 13 polar low-molecular-weight organic compounds consisting of various functional groups.
Chian, ESK, Fang, HHP
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Despite frogs avoiding low temperatures, examination of four salamander species revealed that none avoided cold and all possessed cold tolerance. Functional analysis of TRPM8, a cold sensor, showed that all salamander TRPM8s had lost their cold sensitivity.
Tadahiro Sawao +3 more
wiley +1 more source
Sample Processing for the Analysis of Polar and Semi-polar Compounds using a LC-MS
Extraction of polar secondary metabolites from tomato leaves and preparation for analysis of the extract by liquid chromatography.https://polimedia.upv.es/visor/?id=70728250-6eec-11e8-8c63-f1cdd0851276López Gresa, MP.; Caballero Vizcaino, M.
CABALLERO VIZCAINO, M.TERESA +1 more
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Systemic dysregulation of apolipoproteins in amyotrophic lateral sclerosis serum
Amyotrophic lateral sclerosis (ALS) is a fatal disease that damages motor neurons. This study found that people with ALS show significant changes in blood fats and the proteins that carry them. Several apolipoproteins were higher, lipid balances were altered, and normal protein–lipid relationships were disrupted.
Finula I. Isik +6 more
wiley +1 more source
Phytoplankton dynamics in the Barents Sea estimated from chlorophyll budget models
Pigment budgets use chlorophyll a and phaeopigment standing stock in combination with their photo-oxidation and sedimentation rates in the euphotic zone to estimate phytoplankton growth and grazing by micro- and macrozooplankton.
Vernet, Maria
core +1 more source

