Enantiomeric separation of racemic amlodipine by sequential fractional crystallization through formation of diastereomeric salt solvates and co‐crystals of solvate‐like compounds with specific structure — A tandem resolution

Chirality ◽  
2021 ◽  
Author(s):  
Dorottya Fruzsina Bánhegyi ◽  
Dóra Szolcsányi ◽  
János Madarász ◽  
Emese Pálovics
Keyword(s):  
Fractional Crystallization ◽  
Enantiomeric Separation ◽  
Specific Structure

Psychovegetative status of underground miners

2020 ◽  
pp. 589-589
Author(s):  
N. K. Voznesensky ◽  
S. V. Paramonova ◽  
A. L. Sedinin
Keyword(s):  
Specific Structure ◽  
Average Level ◽  
Low Level ◽  
Situational Anxiety ◽  
Personal Anxiety

The structure of psychovegetative status of underground miners is studied. The low level of attention in 64% of employees was revealed. 44% of the subjects had an average level of neuropsychic tension. Average level of personal anxiety (69%) and low level of situational anxiety (87%). The specific structure of psychovegetative status of underground miners is revealed.

Ultramafic-alkaline-carbonatite complexes as a result of two-stage melting of mantle plume: evidence from the mid-paleoproterozoic Tiksheozero intrusion, Northern Karelia, Russia

2019 ◽  
Vol 486 (4) ◽  
pp. 460-465
Author(s):  
E. V. Sharkov ◽  
A. V. Chistyakov ◽  
M. M. Bogina ◽  
O. A. Bogatikov ◽  
V. V. Shchiptsov ◽  
...  
Keyword(s):  
Fractional Crystallization ◽  
Mantle Plume ◽  
Large Igneous Province ◽  
Intrusive Complex ◽  
Incongruent Melting ◽  
Isotopic Data ◽  
Two Stage ◽  
Similar Composition ◽  
Igneous Province ◽  
Alkaline Magmas

Tiksheozero ultramafic-alkaline-carbonatite intrusive complex, like numerous carbonatite-bearing complexes of similar composition, is a part of large igneous province, related to the ascent of thermochemical mantle plume. Our geochemical and isotopic data evidence that ultramafites and alkaline rocks are joined by fractional crystallization, whereas carbonatitic magmas has independent origin. We suggest that origin of parental magmas of the Tiksheozero complex, as well as other ultramafic-alkaline-carbonatite complexes, was provided by two-stage melting of the mantle-plume head: 1) adiabatic melting of its inner part, which produced moderately-alkaline picrites, which fractional crystallization led to appearance of alkaline magmas, and 2) incongruent melting of the upper cooled margin of the plume head under the influence of CO2-rich fluids  that arrived from underlying zone of adiabatic melting gave rise to carbonatite magmas.

Speaker-specific Structure in German Voiceless Stop Voice Onset Times

2018 ◽  
Author(s):  
Marc Antony Hullebus ◽  
Stephen Tobin ◽  
Adamantios Gafos
Keyword(s):  
Specific Structure ◽  
Voiceless Stop

scholarly journals Phosphorylation-dependent down-modulation of CD4 requires a specific structure within the cytoplasmic domain of CD4

1991 ◽  
Vol 266 (16) ◽  
pp. 10658-10665
Author(s):  
J. Shin ◽  
R.L. Dunbrack ◽  
S. Lee ◽  
J.L. Strominger
Keyword(s):  
Cytoplasmic Domain ◽  
Specific Structure
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