Results 111 to 120 of about 623,839 (308)
Pacific Journal of Mathematics, 1984 The author proves that the corona theorem holds for finite bordered Riemann surfaces. He constructs a surface of infinite genus for which the corona theorem holds, and shows that this surface can be chosen to be of Parreau-Widom type or not.
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Metal complexes of penicillin and cephalosporin antibiotics [PDF]
, 1975 Includes bibliographical references.The interaction between metal-ions and the penicillin and cephalosporin antibiotics have been studied in an attempt to determine both the site and mechanism of this interaction.
Jackson, Graham Ellis
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Half-saturation constants in functional responses
Global Ecology and Conservation, 2014 Intake of elemental nutrients by plants and food by animals is often considered to be a hyperbolic or sigmoid function of the resource. In these global relationships, the half-saturation constant Km, i.e.
Christian Mulder, A. Jan Hendriks
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Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
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Metastatic niche shaped by host factors influences disseminated cancer cell fate
FEBS Letters, EarlyView.Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward +2 more
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, 1983 Article on thermochemical investigations of associated solutions and the calculation of solute-solvent equilibrium constants from solubility ...
McHan, Danny R. +2 more
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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2005 We review properties of theories for the variation of gravitation and fine structure ‘constants’. We highlight some general features of the cosmological models that exist in these theories with reference to recent quasar data that are consistent with time variation in the fine structure constant since a redshift of 3.5.
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Smaller is better: nanobodies meet NMR
FEBS Letters, EarlyView.Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
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The thermodynamic chemistry of the aqueous copper-ammonia thiosulfate system [PDF]
, 2006 A fundamental thermodynamic study was undertaken in order to establish the speciation of copper(I) and copper(II) during the leaching and recovery of gold from thiosulfate-copper-ammonia solutions. Despite considerable research into this complex leaching
Black, Silvia Beatriz
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AIP AdvancesRecently, there has been a surge of interest in [011]-poled Mn: PIN-PMN-PT piezoelectric single crystals for high-power transducers. These crystals boast impressive electromechanical coupling coefficients, piezoelectric constants in the transverse mode ...
Byungjin Kwon +5 more
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