Results 231 to 240 of about 461,814 (281)

Curry-Style Explicit Substitutions for the Linear and Affine Lambda Calculus

Lecture Notes in Computer Science, 2010
We introduce a calculus of explicit substitutions for the λ-calculus with linear, affine, and intuitionistic variables and meta-variables. Using a Curry-style formulation, we redesign and extend previously suggested type systems for linear explicit substitutions.
Carsten Schürmann, Anders Schack-Nielsen   +1 more
exaly   +2 more sources

Intrinsic proton affinity of substituted aromatics

1998
It is shown that the MP2(fc)/6-31G*//HF/6-31G* + ZPE(HF/6-31G*) model reproduces very well the experimental proton affinities in a large number of substituted benzenes and naphthalenes. Extensive applications of this model revealed that the proton affinity of polysubstituted aromatics followed a simple additivity rule, which have been rationalized by ...
Maksić, Zvonimir, Maksić, Mirjana
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Electron affinities of cyano-substituted ethylenes

Molecular Physics, 2001
Electron affinities of ethylene and six cyano-substituted ethylenes (cyanoethylene, 1, 1-dicyanoethylene, cis-1, 2-dicyanoethylene, trans-1, 2-dicyanothylene, tricyanoethylene, and tetracyanoethylene) were determined using six different density functional or hybrid Hartree-Fock/density functional methods. Equilibrium geometries and harmonic vibrational
NICOLE R. BRINKMANN, JONATHAN C. RIENSTRA-KIRACOFE, HENRY F. SCHAEFER   +2 more
openaire   +1 more source

Systematically Modulating Aptamer Affinity and Specificity by Guanosine-to-Inosine Substitution

Analytical Chemistry, 2022
Aptamers are widely used in small molecule detection applications due to their specificity, stability, and cost effectiveness. One key challenge in utilizing aptamers in sensors is matching the binding affinity of the aptamer to the desired concentration range for analyte detection.
Brea A. Manuel, Sierra A. Sterling, Aimee A. Sanford, Jennifer M. Heemstra   +3 more
openaire   +2 more sources

Hydride Affinity Scale of Various Substituted Arylcarbeniums in Acetonitrile

The Journal of Physical Chemistry A, 2010
Combined with the integral equation formalism polarized continuum model (IEFPCM), the hydride affinities of 96 various acylcarbenium ions in the gas phase and CH(3)CN were estimated by using the B3LYP/6-31+G(d)//B3LYP/6-31+G(d), B3LYP/6-311++G(2df,2p)//B3LYP/6-31+G(d), and BLYP/6-311++G(2df,2p)//B3LYP/6-31+G(d) methods for the first time.
Xiao-Qing, Zhu, Chun-Hua, Wang
openaire   +2 more sources

Affinity chromatography of fibroblast growth factors on substituted polystyrene

Journal of Chromatography B: Biomedical Sciences and Applications, 1990
The heparin-binding growth factors aFGF and bFGF (acidic and basic fibroblast growth factor) from crude bovine brain extract were co-eluted with purified [125I]aFGF and/or [125I]bFGF as tracers from heparin-Sepharose and from several insoluble substituted polystyrenes used as stationary phases in low-pressure affinity chromatography. The ability of the
M A, Dourges, D, Gulino, J, Courty, J, Badet, D, Barritault, J, Jozefonvicz   +5 more
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Methyl Cation Affinity vs Proton Affinity in Substituted Benzenes:  An ab Initio Study

The Journal of Physical Chemistry A, 1998
The proton (PA) and methyl cation (MCA) affinities of benzene and its di- and polysubstituted derivatives are examined at the MP2(fc)/6-31G**//HF/6-31G*+ZPE(HF/6-31G*) theoretical level. The calculated MCA of benzene is in good accordance with the experimental estimate. It is shown that MCAs of polysubstituted benzenes follow the additivity rule, which
Knežević, Andrea, Maksić, Mirjana, Maksić, Zvonimir   +2 more
openaire   +2 more sources

Correlation of the hydride affinities of substituted aromatic carbocations and the proton affinities of substituted benzenes calculated by MNDO with .sigma.+ substituent constants

The Journal of Organic Chemistry, 1991
MNDO-calculated heats of formation and ionization potentials of 248 structures involving substituted toluenes, diphenylmethanes (DPMH), xanthenes (XAN), 9H,10H-acridines (ACR), 9H-10-N-methylacridines (N-MACR), benzenes, and the corresponding carbocations are ...
Rafik Karaman, Jun Tsu Luke Huang, James L. Fry   +2 more
openaire   +1 more source

The Proton Affinity of Some Substituted Naphtalenes

Journal of physical organic chemistry, 1999
The absolute proton affinity (PA) pertaining aromatic carbons of the monosubstituted naphtalenes involving CH3, OH, CHO, NO2 and Cl substituents is calculated at the MP2(fc)/6-31G**//HF/6-31G* + ZPVE(HF/6-31G*) level of theory. Increments corresponding to unsubstituted positions within the naphtalene skeleton are estimated.
Eckert-Maksić, Mirjana, Antol, Ivana, Klessinger, Martin, Maksić, Zvonimir B.   +3 more
openaire   +2 more sources

The Transport and Affinity of Substituted Benzenes in Soybean Stems

Journal of Experimental Botany, 1987
McCrady, J. K., McFarlane, C. and Lindstrom, F. T. 1987. The transport and affinity of substituted benzenes in soybean stems.—J. exp. Bot. 38: 1875-1890. The sorption of non-ionized substituted benzenes in the xylem tissue of excised soybean stems was studied.
JOEL K. McCRADY, CRAIG McFARLANE, F. T. LINDSTROM   +2 more
openaire   +1 more source