Results 101 to 110 of about 3,443,174 (389)

Photochemistry with Cyanines in the Near Infrared: A Step to Chemistry 4.0 Technologies

open access: yesChemistry, 2019
Cyanines covering the absorption in the near infrared (NIR) are attractive for distinct applications. They can interact either with lasers exhibiting line‐shaped focus emitting at both 808 and 980 nm or bright high intensity NIR‐LEDs with 805 nm emission,
B. Strehmel   +3 more
semanticscholar   +1 more source

Sources and Secondary Production of Organic Aerosols in the Northeastern United States during WINTER [PDF]

open access: yes, 2018
Most intensive field studies investigating aerosols have been conducted in summer, and thus, wintertime aerosol sources and chemistry are comparatively poorly understood.
Apel, E. C.   +23 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

The Deuterium Fractionation Timescale in Dense Cloud Cores: A Parameter Space Exploration

open access: yes, 2015
The deuterium fraction [N$_2$D$^+$]/[N$_2$H$^+$], may provide information about the ages of dense, cold gas structures, important to compare with dynamical models of cloud core formation and evolution.
Caselli, Paola   +4 more
core   +3 more sources

Nanofiller-tuned microporous polymer molecular sieves for energy and environmental processes [PDF]

open access: yes, 2015
10.1039/c5ta09060aJournal of Materials Chemistry A41270 ...
Cao, S   +6 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Environment Protection by Practical Chemistry: A General Chemistry Laboratory Course with a Minimum of Chemical Waste

open access: yesCHIMIA, 1991
A first year chemistry-laboratory course for 170–210 students has been reorganized to minimize its chemical residues by input reduction and substitution, networking of material flows, separate collection, and recycling at the source. Compared to
Hanns Fischer
doaj   +2 more sources

Impact of acidity and surface-modulated acid dissociation on cloud response to organic aerosol [PDF]

open access: yesAtmospheric Chemistry and Physics
Acid dissociation of the organic aerosol fraction has the potential to impact cloud-activating properties by altering aqueous-phase H+ concentrations and water activity but is currently overlooked in most atmospheric aerosol models.
G. Sengupta   +3 more
doaj   +1 more source

Imaging of fuel mixture fraction oscillations in a driven system using acetone PLIF [PDF]

open access: yes, 2004
Measurements of fuel mixture fraction are made for a jet flame in an acoustic chamber. Acoustic forcing creates a spatially-uniform, temporally-varying pressure field which results in oscillatory behavior in the flame .
Culick, F. E. C.   +3 more
core  

Colloidal Assemblies of Oriented Maghemite Nanocrystals and their NMR Relaxometric Properties

open access: yes, 2014
Elevated-temperature polyol-based colloidal-chemistry approach allows for the development of size-tunable (50 and 86 nm) assemblies of maghemite iso-oriented nanocrystals, with enhanced magnetization.
Bordonali, L.   +9 more
core   +1 more source

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