Search Results - "Spyridon Mourtas"

Exosomes and Exosome-Inspired Vesicles for Targeted Drug Delivery by Antimisiaris, Sophia G, Mourtas, Spyridon, Marazioti, Antonia

“…The similarities between exosomes and liposomes, together with the high organotropism of several types of exosomes, have recently prompted the development of…”
Get full text

A weights direct determination neuronet for time‐series with applications in the industrial indices of the Federal Reserve Bank of St. Louis by Mourtas, Spyridon D.

“…The shortcomings of conventional back‐propagation neuronets, such as slow training speed and local minimum, are known to be addressed by neuronets trained…”
Get full text

Solving Complex-Valued Time-Varying Linear Matrix Equations via QR Decomposition With Applications to Robotic Motion Tracking and on Angle-of-Arrival Localization by Katsikis, Vasilios N., Mourtas, Spyridon D., Stanimirovic, Predrag S., Zhang, Yunong

“…The problem of solving linear equations is considered as one of the fundamental problems commonly encountered in science and engineering. In this article, the…”
Get full text

Zeroing Neural Network With Fuzzy Parameter for Computing Pseudoinverse of Arbitrary Matrix by Katsikis, Vasilios N., Stanimirovic, Predrag S., Mourtas, Spyridon D., Xiao, Lin, Karabasevic, Darjan, Stanujkic, Dragisa

“…A correlation between fuzzy logic systems (FLS) and zeroing neural networks (ZNN) design is investigated. It is shown that the gain parameter included in ZNN…”
Get full text

Color restoration of images through high order zeroing neural networks by Mourtas, Spyridon D.

“…One of the fundamental tasks in pattern recognition is color image restoration. Every color image has three channels in the RGB color space, in contrast to…”
Get full text

Customer churn classification through a weights and structure determination neural network by Mourtas, Spyridon D.

“…In today's corporate world, acquiring and keeping clients are the most important priorities. Every business’s market is expanding quickly, which is increasing…”
Get full text

Randomized time‐varying knapsack problems via binary beetle antennae search algorithm: Emphasis on applications in portfolio insurance by Medvedeva, Marina A., Katsikis, Vasilios N., Mourtas, Spyridon D., Simos, Theodore E.

“…The knapsack problem is a problem in combinatorial optimization, and in many such problems, exhaustive search is not tractable. In this paper, we describe and…”
Get full text

Solid-Phase Synthesis of 2-Benzothiazolyl and 2-(Aminophenyl)benzothiazolyl Amino Acids and Peptides by Mourtas, Spyridon, Athanasopoulos, Vasileios, Gatos, Dimitrios, Barlos, Kleomenis

“…2-benzothiazoles and 2-(aminophenyl)benzothiazoles represent biologically interesting heterocycles with high pharmacological activity. The combination of these…”
Get full text

ORPIT: A Matlab Toolbox for Option Replication and Portfolio Insurance in Incomplete Markets by Katsikis, Vasilios N., Mourtas, Spyridon D.

“…In this work, we present the ORPIT Matlab toolbox. ORPIT applies the theory of vector lattices to solve (a) the problem of option replication and (b) the cost…”
Get full text

Time-varying mean–variance portfolio selection problem solving via LVI-PDNN by Katsikis, Vasilios N., Mourtas, Spyridon D., Stanimirović, Predrag S., Li, Shuai, Cao, Xinwei

“…It is widely acclaimed that the Markowitz mean–variance portfolio selection is a very important investment strategy. One approach to solving the static…”
Get full text

Exploiting Mean-Variance Portfolio Optimization Problems through Zeroing Neural Networks by Mourtas, Spyridon D., Kasimis, Chrysostomos

“…In this research, three different time-varying mean-variance portfolio optimization (MVPO) problems are addressed using the zeroing neural network (ZNN)…”
Get full text

Synthesis of α,ω-bis-Mercaptoacyl Poly(alkyl oxide)s and Development of Thioether Cross-Linked Liposome Scaffolds for Sustained Release of Drugs by Mourtas, Spyridon, Kourmoulakis, Georgios, Kremezis, Stavros, Klepetsanis, Pavlos, Antimisiaris, Sophia G

“…With the aim to develop novel scaffolds for the sustained release of drugs, we initially developed an easy approach for the synthesis of α,ω-homobifunctional…”
Get full text

V-Shaped BAS: Applications on Large Portfolios Selection Problem by Mourtas, Spyridon D., Katsikis, Vasilios N.

“…The beetle antennae search (BAS) algorithm is a memetic meta-heuristic optimization algorithm capable of solving combinatorial optimization problems. In this…”
Get full text

A Zeroing Neural Network Approach for Calculating Time-Varying G-Outer Inverse of Arbitrary Matrix by Stanimirovic, Predrag S., Mourtas, Spyridon D., Mosic, Dijana, Katsikis, Vasilios N., Cao, Xinwei, Li, Shuai

“…Calculation of the time-varying (TV) matrix generalized inverse has grown into an essential tool in many fields, such as computer science, physics,…”
Get full text

Convergent Synthesis of Thioether Containing Peptides by Mourtas, Spyridon, Katakalou, Christina, Gatos, Dimitrios, Barlos, Kleomenis

“…Thioether containing peptides were obtained following three synthetic routes. In route A, halo acids esterified on 2-chlorotrityl(Cltr) resin were reacted with…”
Get full text

Continuous-Time Varying Complex QR Decomposition via Zeroing Neural Dynamics by Katsikis, Vasilios N., Mourtas, Spyridon D., Stanimirović, Predrag S., Zhang, Yunong

“…QR decomposition (QRD) is of fundamental importance for matrix factorization in both real and complex cases. In this paper, by using zeroing neural dynamics…”
Get full text

Minimal Rank Properties of Outer Inverses with Prescribed Range and Null Space by Mosić, Dijana, Stanimirović, Predrag, Mourtas, Spyridon

“…The purpose of this paper is to investigate solvability of systems of constrained matrix equations in the form of constrained minimization problems. The main…”
Get full text

A fuzzy WASD neuronet with application in breast cancer prediction by Simos, Theodore E., Katsikis, Vasilios N., Mourtas, Spyridon D.

“…Cancer is one of the world’s leading causes of human mortality, and the most prevalent type is breast cancer. However, when diagnosed early, breast cancer may…”
Get full text

Solid-Phase Insertion of N -mercaptoalkylglycine Residues into Peptides by Mourtas, Spyridon, Gatos, Dimitrios, Barlos, Kleomenis

“…-mercaptoalkylglycine residues were inserted into peptides by reacting -free amino groups of peptides, which were initially synthesized on 2-chlorotrityl resin…”
Get full text

Towards Higher-Order Zeroing Neural Networks for Calculating Quaternion Matrix Inverse with Application to Robotic Motion Tracking by Abbassi, Rabeh, Jerbi, Houssem, Kchaou, Mourad, Simos, Theodore E., Mourtas, Spyridon D., Katsikis, Vasilios N.

“…The efficient solution of the time-varying quaternion matrix inverse (TVQ-INV) is a challenging but crucial topic due to the significance of quaternions in…”
Get full text