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Theory of Cell Body Lensing and Phototaxis Sign Reversal in “Eyeless” Mutants of Chlamydomonas

Birwa SK, Yang M, Pesci AI, Goldstein RE.   +3 more
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Derivation of the third-order directional derivative

Pattern Recognition Letters, 1993
Summary: We give an easy derivation of the third order directional derivative in the direction of the gradient of the intensity function. The obtained formula is a correction of the formula found by \textit{J. J. Clark} [IEEE Trans. Pattern Anal. Mach. Intell. 11, No. 1, 43-57 (1989; Zbl 0665.68066)].
exaly   +3 more sources

A new approach to the directional derivative of fractional order

Mathematical Methods in the Applied Sciences
<p>The fractional derivative approximations offer many approaches to understanding real-world problems. The conformable fractional derivative operator that is one of the fractional derivative operators has recently attracted a lot of interesting ...
Toplama Aykut
exaly   +2 more sources

Direct Density Derivative Estimation

Neural Computation, 2016
Estimating the derivatives of probability density functions is an essential step in statistical data analysis. A naive approach to estimate the derivatives is to first perform density estimation and then compute its derivatives. However, this approach can be unreliable because a good density estimator does not necessarily mean a good density derivative
Hiroaki Sasaki, Yung-Kyun Noh, Gang Niu 0001, Masashi Sugiyama   +3 more
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Predicting the Direction of Derivation in English Conversion

Proceedings of the 14th SIGMORPHON Workshop on Computational Research in Phonetics, Phonology, and Morphology, 2016
Conversion is a word formation operation that changes the grammatical category of a word in the absence of overt morphology. Conversion is extremely productive in English (e.g., tunnel, talk). This paper investigates whether distributional information can be used to predict the diachronic direction of conversion for homophonous noun‐verb pairs.
Max Kisselew, Laura Rimell, Alexis Palmer, Sebastian Padó   +3 more
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Direct carboxyhemoglobin determination by derivative spectroscopy

Forensic Science International, 1989
A fast and sensitive method for the determination of carboxyhemoglobin (COHb) in blood using derivative spectroscopy is described. The addition of sodium dithionite as a reducing agent is not required. The concentration interval studied was from 0.5% to 100% COHb.
M, López-Rivadulla, A M, Bermejo, P, Fernández, A, Cruz, L, Concheiro   +4 more
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On the Derivation of Shell Theories by Direct Approach

Journal of Applied Mechanics, 1974
A constrained theory of shells by a direct approach, based on a general theory of a Cosserat surface, is derived and its relation to other recent developments obtained by direct procedures is indicated.
Green, A. E., Naghdi, P. M.
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Selective Direct Fluorination of Quinoline Derivatives.

ChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
Richard D Chambers, Darren Holling, Graham Sandford, Horst Puschmann, Judith A.K Howard   +4 more
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Direct Addition of Glycine Derivatives to Enamines

Chemistry Letters, 2005
Abstract Direct addition of glycine derivatives to enamines proceeded smoothly in the presence of a catalytic amount of a Lewis acid to afford the corresponding α,β-diamino acid derivatives in excellent yields. In this reaction, enamines would initially act as a base and subsequently as a C=N electrophile.
Jun Kobayashi, Yasuhiro Yamashita, Shu Kobayashi   +2 more
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