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Microscopic Marangoni Flows Cannot Be Predicted on the Basis of Pressure Gradients.
A concentration gradient along a fluid-fluid interface can cause flow. On a microscopic level, this so-called Marangoni effect can be viewed as being caused by a gradient in the pressures acting on the fluid elements or as the...
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By Means of Critical Theory
Gabriele Strohschen
Apr 03, 2020
So-termed non-traditional adult students have become a key target for marketing efforts in higher education, and non-conventional, accelerated paths to university-issued degrees are the lure du jour in the business of selling...
Coalescence of small bubbles with surfactants
Bubble coalescence is central to many important technological processes, such as separations, cleaning of oil spills, microfluidics, emulsification and foaming. It is well known that surfactants, which are frequently present as...
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Coalescence of small bubbles with surfactants
Bubble coalescence is central to many important technological processes, such as separations, cleaning of oil spills, microfluidics, emulsification and foaming. It is well known that surfactants, which are frequently present as...
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Situated Learning Meets Community Needs
This chapter describes a community-based learning project (CbLP) in the Chicago West Side community of Austin. This learning setting provided the context for applying instructional strategies, methods, and techniques that are...
Self-Directed/Community-Supported Learning
MOOC designers seeking to address evolving ambitions of MOOCs to support workforce development confront a fundamental design dilemma: on the one hand, the self-paced nature of online learning is efficient for busy learners...
Crystallographic rationalization of the reactivity and spectroscopic properties of (2R)-S-(2,5-dihydroxyphenyl)cysteine
At 150 K, the title compound, C9H11NO4S, crystallizes in the orthorhombic form as a zwitterion and has a low gauche conformation [chi = -46.23 (16)degrees] for an acyclic cysteine derivative. A difference in bond length is...
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Crystallographic rationalization of the reactivity and spectroscopic properties of (2R)-S-(2,5-dihydroxyphenyl)cysteine
At 150 K, the title compound, C9H11NO4S, crystallizes in the orthorhombic form as a zwitterion and has a low gauche conformation [chi = -46.23 (16)degrees] for an acyclic cysteine derivative. A difference in bond length is...
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Bipyrrolidine salan alkoxide complexes of lanthanides

Four dimeric lanthanide alkoxide complexes bearing ONNO bipyrrolidine salan ligands (L MeH 2/L tBuH 2) have been prepared with Nd, Sm and Yb. Depending on the metal and...

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Spontaneous oscillations of elastic filaments induced by molecular motors.
It is known from the wave-like motion of microtubules in motility assays that the piconewton forces that motors produce can be sufficient to bend the filaments. In cellular phenomena such as cytosplasmic streaming, molecular...
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Stoichiometric and catalytic reactivity of tert-butylamine-borane with calcium silylamides

The primary amine-borane t-BuNH2·BH3 reacts with a β-diketiminate-supported silylamido calcium complex with elimination of HN(SiMe3)2 and formation of the corresponding primary...

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Tin(IV) chalcogenide complexes
A family of tin(IV) bis(hexamethylsilylamide) complexes 29 have been synthesized by reaction of [Sn{N(SiMe3)2}2] (1) with the diphenyl dichalcogenanes...
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Group 2 Catalysis for the atom-efficient synthesis of imidazolidine and thiazolidine derivatives

A wide variety of functionalised imidazolidine-2-ones and -thiones, 2-imino-imidazolidines and thiazolidine-2-thiones have been synthesised under very mild reaction conditions by using simple and cost-effective alkaline earth...

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Alkali metal-mediated Dehydrocoupling of Me<sub>2</sub>NH.BH<sub>3</sub>
Bis(trimethylsilyl)amide derivatives of the group 1 elements (Li, Na, K) are competent pre-catalysts for the dehydrocoupling of Me2NH·BH3via the formation of intermediates containing [H3BNMe2BH2Me2N]− anions.
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New cyclotetrasiloxanes bearing sila-alkyl substituted side chains and their applications as templates for gold nanowires
New sila-alkyl substituted cyclotetrasiloxanes, [RMeSiCH CH(Me)SiO] [R = Ph(1), 2-thienyl(2), 2-furyl(3)] have been synthesized by a hydrosilylation reaction between 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane, (D )...
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Bipyrrolidine salan alkoxide complexes of lanthanides

Four dimeric lanthanide alkoxide complexes bearing ONNO bipyrrolidine salan ligands (L MeH 2/L tBuH 2) have been prepared with Nd, Sm and Yb. Depending on the metal and...

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Ligand Tuning in Pyridine-Alkoxide Ligated Cp*Ir III Oxidation Catalysts
Six novel derivatives of pyridine-alkoxide ligated Cp*IrIII complexes, potent precursors for homogeneous water and C–H oxidation catalysts, have been synthesized, characterized, and analyzed spectroscopically and kinetically for...
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Total synthesis of (+)-grandifloracin by iron complexation of a microbial arene oxidation product
(+)-Grandifloracin was synthesized from sodium benzoate by means of a dearomatizing dihydroxylation that proceeds with unusual regloselectivity. Iron diene complexes formed from the arene oxidation product permit the use of...
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Rhodium-catalysed enantioselective synthesis of 4-arylchroman-2-ones
The rhodium-catalysed enantioselective 1,4-addition of organoboron reagents to arylidene Meldrum's acids as acceptors, allows convenient access to 4-arylchroman-2-ones with good to excellent levels of enantioselectivity. The use...
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