Results 241 to 250 of about 441,204 (319)

Mathematical modelling of essential oil supercritical carbon dioxide extraction from chamomile flowers

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study investigates the supercritical extraction process of essential oil from chamomile flowers. Essential oils of chamomile are used extensively for medicinal purposes. Many different chamomile products have been developed, the most popular of which is herbal tea.
Oliwer Sliczniuk, Pekka Oinas
wiley   +1 more source

SLIC‐SABRE at Microtesla Fields Enables High Levels of Nuclear Spin Polarization Without Magnetic Shielding

Chemistry–Methods, EarlyView.
Signal Amplification by Reversible Exchange (SABRE) provides substantial increase of NMR sensitivity by utilizing non‐equilibrium spin order of parahydrogen. We demonstrate that performing SLIC‐SABRE (Spin Lock Induced Crossing SABRE) at low magnetic fields results in higher polarization as compared to the conventional SABRE‐SHEATH (SABRE in SHield ...
Vitaly P. Kozinenko, Alexey S. Kiryutin, Alexandra V. Yurkovskaya   +2 more
wiley   +1 more source

Genetic Landscape and Clinical Features of Hyperphenylalaninemia in North Ossetia-Alania: High Frequency of P281L and P211T Genetic Variants in the PAH Gene. [PDF]

Int J Mol Sci
Tebieva IS, Mishakova PV, Gabisova YV, Khokhova AV, Kaloeva TG, Marakhonov AV, Shchagina OA, Polyakov AV, Ginter EK, Kutsev SI, Zinchenko RA.   +10 more
europepmc   +1 more source

On the Russian Arctic Expedition of 1900–1903.

, 1908
H. E. Dresser
openalex   +2 more sources

Hacked by the Russians [PDF]

The Journal of Thoracic and Cardiovascular Surgery, 2019
openaire   +3 more sources

ESI‐MS‐Visualization of Cyanoarene Photocatalysts by Specific Supramolecular Interaction with Br‐Anion

Chemistry–Methods, EarlyView.
This study develops a convenient approach to investigate cyanoarene photocatalysts with anion‐enhanced detection AED‐ESI‐HRMS through the signal‐amplified interaction with bromide anions. By combining supramolecular chemistry, DFT calculations, and mass spectrometry, we uncover a novel approach for tracking photocatalyst transformations and elucidating
Nikita S. Shlapakov, Julia V. Burykina, Andrey D. Kobelev, Alexander Yu. Kostyukovich, Mikhail E. Minyaev, Valentine P. Ananikov   +5 more
wiley   +1 more source

Features of toll-like receptor genes (TLR-2, TLR-3, TLR-4 and TLR-6) polymorphism in open-angle glaucoma patients. [PDF]

Vavilovskii Zhurnal Genet Selektsii
Shevchenko AV, Prokofiev VF, Konenkov VI, Chernykh VV, Trunov AN.   +4 more
europepmc   +1 more source

A voyage of discovery into the South Sea and Beering's [sic] Straits, for the purpose of exploring a north-east passage undertaken in the years 1815-1818, at the expense of His Highness the chancellor of the empire, Count Romanzoff, in the ship Rurick, under the command of the lieutenant in the Russian Imperial Navy, Otto von Kotzebue

Otto von Kotzebue, Johann Friedrich Eschscholtz, Johann Friedrich Eschscholtz, Adelbert von Chamisso, Maurits van. Engelhardt, Johann Caspar Horner   +5 more
openalex   +2 more sources

Temporal Trends and Mortality Patterns in Peripheral Arterial Disease: A Comprehensive Analysis of Hospitalized Patients in Kazakhstan between 2014 and 2021. [PDF]

J Epidemiol Glob Health
Zhakhina G, Sakko Y, Yerdessov S, Aimyshev T, Makhammajanov Z, Abbay A, Vinnikov D, Fakhradiyev I, Yermakhanova Z, Solak Y, Salustri A, Gaipov A.   +11 more
europepmc   +1 more source

Geometrical and Electronic Structure of Fluorinated and Non‐Fluorinated Platinum(II) Tetraphenylporphyrin Complexes

ChemPhysChem, EarlyView.
The experimental gas‐phase geometries of two platinum complexes, free from intermolecular interactions, can serve as references for related complexes in the crystalline state or solution. A significant electron density transfer from the porphyrin backbone to the platinum ion make it extremely low positive charged at +0.5 e.
Ivan Yu. Kurochkin, Nina I. Giricheva, Valentina A. Ol'shevskaya, Andrey V. Zaitsev, Georgiy V. Girichev, Norbert W. Mitzel   +5 more
wiley   +1 more source