Results 51 to 60 of about 10,545 (194)
A Theoretical Formulation of the Hammett Equation
Transactions of the Kansas Academy of Science (1903-), 1952 the rates of over two hundred reactions with the structure of the reactants. The equation as it stands now is applicable only to reactions of aromatic compounds and their derivatives. The Hammett equation is usually written, k 0, k p iog,'-- = po" k0 is the specific reaction rate constant for a given reaction with an unsubstituted reactant, k is the ...
Gallup, Gordon A +2 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Aqueous zinc–iodine batteries (Zn–I2Bs) offer promise for grid storage due to safety and cost advantages yet face critical bottlenecks: severe self‐discharge (polyiodide shuttling and HER), limited energy density, sluggish kinetics, and zinc anode instability.
Jia‐Lin Yang +3 more
wiley +1 more source
People and Nature, EarlyView.Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song +9 more
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Hybrid viscosity and the magnetoviscous instability in hot, collisionless accretion disks
, 2008 We aim to illustrate the role of hot protons in enhancing the magnetorotational instability (MRI) via the ``hybrid'' viscosity, which is due to the redirection of protons interacting with static magnetic field perturbations, and to establish that it is ...
A. Brandenburg +22 more
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Catalytic and mechanistic studies into the epoxidation of styrenes using manganese complexes of structurally similar polyamine ligands [PDF]
, 2014 The synthesis and catalytic activity of manganese(ii) complexes of two polyamine ligands is reported which highlights how a small structural change in the ligand affects the overall catalytic behaviour.
Al-Safadi, R +5 more
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Beyond Judgment and Approval: Establishing Process‐Oriented Ethics in Geography
Area, EarlyView.Short Abstract In this paper, we argue for establishing process‐oriented ethics in geography (POEG) that moves beyond a singular, formal judgment and approval at the outset of a research project. Instead, we propose a process‐oriented ethics approach that engages with ethical questions continuously throughout the research process.
Jeannine Wintzer, Susan Thieme
wiley +1 more source
Linear Collisionless Landau Damping in Hilbert Space
, 2014 The equivalence between the Laplace transform [Landau L., J. Phys. USSR, 10 (1946), 25] and Hermite transform [Zocco and Schekochihin, Phys.
Zocco, Alessandro
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Children &Society, EarlyView.ABSTRACT Respect is a foundational moral and social value, yet its conceptualisation by and about children and young people remains underexplored. This systematic qualitative literature review examines how respect and disrespect are theorised, defined or conceptualised in relation to children and young people, and the extent to which their perspectives
Alison MacKenzie +9 more
wiley +1 more source
MATEC Web of Conferences, 2013 Ten compounds hydroxybases Schiff were synthesized from salicylaldehyde and the substituted aniline in the ortho, meta and para methyl groups, chloro and nitro.
Hadjeb R., Bara A., Barkat D.
doaj +1 more source
The hydrolysis of phosphocreatine and the origin of urinary creatinine [PDF]
, 1947 Shaffer (1), Myers and Fine (2), and Hahn and Meyer (3) adduced evidence that muscle creatine is the precursor of urinary creatinine. This was questioned by Chanutin and Kinard (4) but was conclusively proved by Bloch, Schoenheimer, and Rittenberg (5, 6)
Borsook, Henry, Dubnoff, Jacob W.
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