scholarly journals A Neutral Solvent for Melanin

Nature ◽  
1945 ◽  
Vol 156 (3964) ◽  
pp. 478-478 ◽  
Author(s):  
A. J. LEA
Keyword(s):  
Neutral Solvent

Phase Behavior of Block Copolymers in a Neutral Solvent

2003 ◽  
Vol 36 (3) ◽  
pp. 816-822 ◽  
Author(s):  
Timothy P. Lodge ◽  
Kenneth J. Hanley ◽  
Bryant Pudil ◽  
Vindya Alahapperuma
Keyword(s):  
Block Copolymers ◽  
Phase Behavior ◽  
Neutral Solvent

scholarly journals Women show enhanced attractiveness ratings and neural processing of male faces associated with male chemosensory signals

2020 ◽  
Author(s):  
Isabelle A. G. Klinkenberg ◽  
Christian Dobel ◽  
Ann-Kathrin Bröckelmann ◽  
Franziska Plessow ◽  
Clemens Kirschbaum ◽  
...  
Keyword(s):  
Associative Learning ◽  
Mating Behavior ◽  
Social Communication ◽  
Emotional Learning ◽  
Chance Level ◽  
Neural Processing ◽  
Emotional Attention ◽  
Human Mating ◽  
Neutral Solvent

AbstractThere is growing evidence that humans use olfactory chemosensory signals for social communication, but their role in affective associative learning is largely unknown. To examine this, women implicitly learned face-odor associations by pairing different neutral male faces with either a male chemosignal presumably involved in human mating behavior (dissolved Δ4,16-androstadien-3-one, “AND”), a pleasant smell (dissolved vanillin) or the neutral solvent alone. After learning, women rated faces previously paired with AND or vanillin as more attractive than faces paired with solvent, even though they were unable to identify the contingency of face-odor pairings above chance level. On a neurophysiological level, both AND- and vanillin-associated faces evoked stronger magnetoencephalographic correlates of enhanced emotional attention than solvent-associated faces at early (<120 ms) and mid-latency (140-270 ms) processing stages. This study stresses the role of AND as a human chemosignal in implicit social communication and demonstrates its effectiveness in modulating emotional learning.

scholarly journals Magnetic field control of the ordering of two-component suspension of hard rods

2013 ◽  
Vol 371 (1988) ◽  
pp. 20120250 ◽  
Author(s):  
K. Slyusarenko ◽  
V. Reshetnyak ◽  
Yu. Reznikov
Keyword(s):  
Magnetic Field ◽  
Magnetic Component ◽  
Isotropic Phase ◽  
Induced Anisotropy ◽  
Dispersion Component ◽  
Two Component ◽  
Field Control ◽  
Hard Rods ◽  
Onsager Theory ◽  
Neutral Solvent

The Onsager theory of hard rod dispersion in a neutral solvent is extended to a case of two-component dispersion consisting of both non-magnetic and magnetic rods. It was found that the alignment of magneto-sensitive dispersion component by a magnetic field leads to the alignment of non-magnetic component in the dispersion and to an elimination of the isotropic phase. This effect is significant even at low relative concentrations of magnetic rods and leads to a magnetically induced anisotropy in a non-magnetic dispersion of rods mixed with the magnetic ones.

scholarly journals Неохлаждаемые фотодиоды для регистрации импульсного инфракрасного излучения в спектральном диапазоне 0.9-1.8 мкм

2021 ◽  
Vol 55 (7) ◽  
pp. 607
Author(s):  
Е.В. Куницына ◽  
А.А. Пивоварова ◽  
И.А. Андреев ◽  
Г.Г. Коновалов ◽  
Э.В. Иванов ◽  
...  
Keyword(s):  
Spectral Range ◽  
Infrared Radiation ◽  
Near Infrared ◽  
Infrared Region ◽  
Gasb Layer ◽  
Speed Of Response ◽  
Photovoltaic Mode ◽  
Near Infrared Region ◽  
Neutral Solvent

Uncooled GaSb/GaAlAsSb photodiodes for detecting pulsed infrared radiation in the spectral range of 0.9-1.8 µm have been developed. Active GaSb layer was grown using lead as a neutral solvent in order to reduce the concentration of natural acceptors. The capacity of the photodiodes with a diameter of photosensitive area of 300 µm was 115−135 pF with no bias and 62−70 pF at U=−1.5 V. The photodiode speed of response measured using an InGaAsP/InP laser with a wavelength of 1.55 µm reached tau=42−60 ns in the photovoltaic mode. It is shown experimentally that the photodiodes can be used without cooling to detect the pulsed radiation of lasers and LEDs in the near-infrared region of the spectrum.

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