Results 41 to 50 of about 1,580,506 (355)

Studies on the interaction of growth regulators with potassium ions in some physiological processes in bean (Phaseolus vulgaris L.). III The effect of growth regulators on growth, chlorophyll level and transpiration depending on potassium concentration

Acta Societatis Botanicorum Poloniae, 2014
Leaf growth and chlorophyll level in GA3-treated bean, and leaf growth and transpiration intensity in ABA-treated bean plants were studied at two potassium concentrations in the medium (1 and 3 mM KNO3).
Jadwiga Stopińska
doaj   +1 more source

Crystal structure of [K(18-crown-6)]+2[Pt(CN)4]2−

Acta Crystallographica Section E: Crystallographic Communications, 2019
In the title compound, di-μ-cyanato-1:2κ2N:C;2:3κ2C:N-dicyanato-2κ2C-bis(1,4,7,10,13,16-hexaoxacyclooctadecane)-1κ6O;3κ6O-1,3-dipotassium(I)-2-platinum(II), [K2Pt(CN)4(C12H24O6)2] or [K(18-crown-6)]2·[Pt(CN)4], two trans-orientated cyano groups of the ...
Malte Sellin, Moritz Malischewski
doaj   +1 more source

Element content and distribution has limited, tolerance metric dependent, impact on salinity tolerance in cultivated sunflower (Helianthus annuus)

Plant Direct, 2020
Disruption of ion homeostasis is a major component of salinity stress's effect on crop yield. In cultivated sunflower prior work revealed a negative relationship between vigor and salinity tolerance.
Andries A. Temme, Victoria A. Burns, Lisa A. Donovan   +2 more
doaj   +1 more source

Chemical doping of individual semiconducting carbon-nanotube ropes [PDF]

, 2000
We report the effects of potassium doping on the conductance of individual semiconducting single-walled carbon nanotube ropes. We are able to control the level of doping by reversibly intercalating and de-intercalating potassium. Potassium doping changes
Bockrath, Marc, Hone, J., McEuen, Paul L., Rinzler, Andrew G., Smalley, Richard E., Zettl, A.   +5 more
core   +1 more source

Sodium potassium hydrogen citrate, NaKHC6H5O7

Acta Crystallographica Section E: Crystallographic Communications, 2016
The crystal structure of sodium potassium hydrogen citrate has been solved and refined using laboratory X-ray powder diffraction data, and optimized using density functional theory techniques.
Alagappa Rammohan, James A. Kaduk
doaj   +1 more source

Efeitos de lâminas de água e fertirrigação potássica sobre o crescimento, produção e qualidade do tomate em ambiente protegido Effects of water nivels and potassium fertirrigation on growth, production and quality of tomato fruits in greenhouse

Ciência e Agrotecnologia, 2005
Avaliaram-se os efeitos de lâminas de água e fertilização potássica sobre o crescimento e produção da cultura do tomate (Lycopersicon esculentum Mill.) híbrido Bônus F1, em ambiente protegido, num Latossolo Vermelho Distroférrico no Setor de Olericultura
Ladilson de Souza Macêdo, Marco Antônio Rezende Alvarenga   +1 more
doaj   +1 more source

Urinary Sodium Excretion and Salt Intake Are Not Associated With Blood Pressure Variability in a White General Population

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2023
Background Salt restriction may lower blood pressure variability (BPV), but previous studies have shown inconsistent results. Therefore, we investigated in an observational study and intervention trial whether urinary sodium excretion and salt intake are
Tan Lai Zhou, Monica T. J. Schütten, Abraham A. Kroon, Ronald M. A. Henry, Alfonsius J. H. M. Houben, Carla J. H. van der Kallen, Marleen M. J. van Greevenbroek, Peter W. de Leeuw, Coen D. A. Stehouwer   +8 more
doaj   +1 more source

How much of the past matters? Using dynamic survival models for the monitoring of potassium in heart failure patients using electronic health records [PDF]

arXiv, 2022
Statistical methods to study the association between a longitudinal biomarker and the risk of death are very relevant for the long-term care of subjects affected by chronic illnesses, such as potassium in heart failure patients. Particularly in the presence of comorbidities or pharmacological treatments, sudden crises can cause potassium to undergo ...
arxiv  

Functional variation among LPMOs revealed by the inhibitory effects of cyanide and buffer ions

FEBS Letters, EarlyView.
This study addresses the inhibition of lytic polysaccharide monooxygenases (LPMOs) by cyanide and explains how and why the magnitude of observed inhibitory effects depends on the way LPMO reactions are setup and on the type of LPMO. Enzymes known as lytic polysaccharide monooxygenases (LPMOs) are mono‐copper polysaccharide‐degrading peroxygenases that ...
Ole Golten, Lorenz Schwaiger, Zarah Forsberg, Kelsi R. Hall, Anton A. Stepnov, Tom Z. Emrich‐Mills, Iván Ayuso‐Fernández, Morten Sørlie, Roland Ludwig, Åsmund Kjendseth Røhr, Vincent G. H. Eijsink   +10 more
wiley   +1 more source

Nonlinear magneto-optical rotation, Zeeman and hyperfine relaxation of potassium atoms in a paraffin-coated cell [PDF]

, 2006
Nonlinear magneto-optical Faraday rotation (NMOR) on the potassium D1 and D2 lines was used to study Zeeman relaxation rates in an antirelaxation paraffin-coated 3-cm diameter potassium vapor cell. Intrinsic Zeeman relaxation rates of $\gamma^{NMOR}/2\pi=2.0(6) {\rm Hz}$ were observed.
arxiv   +1 more source