نتایج جستجو برای: derivative matrix

تعداد نتایج: 424811  

Journal: :Filomat 2022

The aim of this paper is to introduce matrix polynomials L(M,?,?) n (x) and establish some properties viz, hypergeometric representation, generating relations, integral representations, recurrence summation formulas, series relation, fractional derivative operators.

Journal: :The International journal of periodontics & restorative dentistry 2005
Zeina Majzoub Marina Bobbo Fady Atiyeh Giampiero Cordioli

Human histologic evidence of periodontal regeneration following treatment of intrabony defects with enamel matrix derivative has yielded inconsistent results in recent case reports. A 46-year-old woman presenting one deep intrabony defect at the distal root of a mandibular first molar scheduled for extraction was selected for enamel matrix derivative therapy. During surgery, a notch was placed ...

Journal: :Journal of clinical periodontology 1997
L Heijl

The purpose of the present study was to histologically assess the effect of enamel matrix derivative on periodontal regeneration in one human experimental defect. Experimental surgery was performed in a healthy male volunteer to create a buccal dehiscence defect in a mandibular incisor. Following bone removal and conditioning of the exposed root surface, enamel matrix derivative was applied ont...

1999
Lorenzo Cornalba Ricardo Schiappa

We conjecture that the Sen–Seiberg limit of the Type IIA D2–brane action in a flat spacetime background can be resummed, at all orders in α′, to define an associative star product on the membrane. This star product can be independently constrained from the equivalent Matrix theory description of the corresponding M2–brane, by carefully analyzing the known BPS conditions. Higher derivative corre...

2013
Ferena Sayar Nasrin Akhundi Sanaz Gholami

BACKGROUND The aim of this clinical trial study was to clinically evaluate the use of enamel matrix protein derivative combined with the coronally positioned flap to treat gingival recession compared to the subepithelial connective tissue graft by a new method to obtain denuded root surface area. MATERIALS AND METHODS Thirteen patients, each with two or more similar bilateral Miller class I o...

Journal: :Physical review 2022

We consider a higher-derivative generalization of disformal transformations in $D$-dimensional spacetime and clarify the conditions under which they form group with respect to matrix product functional composition. These allow us systematically construct inverse transformation fully covariant manner. Applying invertible generalized known ghost-free scalar-tensor theories, we obtain novel class ...

2003

The paper is devoted to the question whether some kind of additional information makes it possible to determine the fundamental matrix of variational equations in 3 . An application concerning computation of a derivative of a scalar Poincaré mapping is given.

Journal: :Chemical communications 2011
Boram Lee Rosario Scopelliti Kay Severin

A coumarin derivative was employed for the detection of biogenic amines in buffered aqueous solution by UV-Vis or fluorescence spectroscopy. Incorporated in a polymeric matrix, the dye can also be used for the optical detection of gaseous amines.

Journal: :Journal of Electrical Engineering & Technology 2021

This paper is concerned with the stability of linear systems a time-varying delay. First, we derive new form constrained quadratic matrix inequality for reciprocally convex inequality. Second, an equivalent transform into inequality(LMI) derived. Third, upper bound time derivative Lyapunov Krasovskii functional(LKF), in matrix, obtained, and done to make it LMI. Finally, improvement shown throu...

Journal: :Baghdad Science Journal 2022

Several attempts have been made to modify the quasi-Newton condition in order obtain rapid convergence with complete properties (symmetric and positive definite) of inverse Hessian matrix (second derivative objective function). There are many unconstrained optimization methods that do not generate definiteness matrix. One those is symmetric rank 1( H-version) update (SR1 update), where this sat...

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