Further norm and numerical radii inequalities for operators involving a positive operator

Authors: Najla Altwaijry, Cristian Conde, Silvestru Sever Dragomir, Kais Feki

Source: AIMS Mathematics, Vol 10, Iss 2, Pp 2684-2696 (2025)

Subject Terms: positive operator, hilbert space, numerical radius, operator norm, inequalities, Mathematics, QA1-939

File Description: electronic resource

Relation: https://doaj.org/toc/2473-6988

Access URL: https://doaj.org/article/8216118453ef47b5a7a0aa6c3a73ec7b

Novel methotrexate long-acting system using ambroxol coating and hydroxypropyl methylcellulose encapsulation for preferential and enhanced lung cancer efficiency.

Authors: Samaa Abdullah, Najla Altwaijry, Meaad Alnakhli, Ghezlan ALenezi, Alaa A Al-Masud, Hanan Henidi, Yahya F Jamous

Source: PLoS ONE, Vol 20, Iss 1, p e0314941 (2025)

Subject Terms: Medicine, Science

File Description: electronic resource

Relation: https://doaj.org/toc/1932-6203

Access URL: https://doaj.org/article/6b2194c32266453ba91abfbb7f479b61

Novel methotrexate long-acting system using ambroxol coating and hydroxypropyl methylcellulose encapsulation for preferential and enhanced lung cancer efficiency

Authors: Samaa Abdullah, Najla Altwaijry, Meaad Alnakhli, Ghezlan ALenezi, Alaa A. Al-Masud, Hanan Henidi, Yahya F. Jamous

Source: PLoS ONE, Vol 20, Iss 1 (2025)

Subject Terms: Medicine, Science

File Description: electronic resource

Relation: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11737749/?tool=EBI; https://doaj.org/toc/1932-6203

Access URL: https://doaj.org/article/724a9c0db158416fb54d5136612c1184

Some Bounds for the Generalized Spherical Numerical Radius of Operator Pairs with Applications

Authors: Najla Altwaijry, Silvestru Sever Dragomir, Kais Feki, Shigeru Furuichi

Source: Mathematics, Vol 13, Iss 7, p 1199 (2025)

Subject Terms: generalized spherical numerical radius, bounded linear operators, operator pairs, Davis–Wielandt radius, operator norms, Hilbert space, Mathematics, QA1-939

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Relation: https://www.mdpi.com/2227-7390/13/7/1199; https://doaj.org/toc/2227-7390

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Novel 8-Methoxycoumarin-3-Carboxamides with potent anticancer activity against liver cancer via targeting caspase-3/7 and β-tubulin polymerization

Authors: Ahmad Alzamami, Eman M. Radwan, Eman Abo-Elabass, Mohammed El Behery, Hussah Abdullah Alshwyeh, Ebtesam Al-Olayan, Abdulmalik S. Altamimi, Nashwah G. M. Attallah, Najla Altwaijry, Mariusz Jaremko, Essa M. Saied

Source: BMC Chemistry, Vol 17, Iss 1, Pp 1-22 (2023)

Subject Terms: Liver cancer, Coumarin analogues, Antiproliferative activity, Cell cycle arrest, Apoptosis, Flow cytometric analysis, Chemistry, QD1-999

File Description: electronic resource

Relation: https://doaj.org/toc/2661-801X

Access URL: https://doaj.org/article/4c8d047a12a24fd0a137be117847bda6

From petals to healing: consolidated network pharmacology and molecular docking investigations of the mechanisms underpinning Rhododendron arboreum flower’s anti-NAFLD effects

Authors: Nitish Singh Jangwan, Mausin Khan, Richa Das, Najla Altwaijry, Ahlam Mansour Sultan, Ruqaiyah Khan, Shakir Saleem, Mamta F. Singh

Source: Frontiers in Pharmacology, Vol 15 (2024)

Subject Terms: burans, cytoscape, hepatoprotective, quercetin, rutin, Therapeutics. Pharmacology, RM1-950

File Description: electronic resource

Relation: https://www.frontiersin.org/articles/10.3389/fphar.2024.1366279/full; https://doaj.org/toc/1663-9812

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Improved Bounds for the Euclidean Numerical Radius of Operator Pairs in Hilbert Spaces

Authors: Najla Altwaijry, Silvestru Sever Dragomir, Kais Feki

Source: Mathematics, Vol 12, Iss 18, p 2838 (2024)

Subject Terms: Euclidean numerical radius, operator pairs, Hilbert spaces, Davis–Wielandt radius, numerical radius inequalities, Mathematics, QA1-939

File Description: electronic resource

Relation: https://www.mdpi.com/2227-7390/12/18/2838; https://doaj.org/toc/2227-7390

Access URL: https://doaj.org/article/7f1650cc49344bb6914eb7769da3d93d

Preparation and evaluation of transdermal hydrogel of chitosan coated nanocurcumin for enhanced stability and skin permeability

Authors: Tarek M. Faris, Adel M. Ahmad, Hamdoon A. Mohammed, Jawaher Abdullah Alamoudi, Maha Alsunbul, Amal Alrashidi, Omeima Abdullah, Najla Altwaijry, Abeer S. Hassan

Source: Arabian Journal of Chemistry, Vol 16, Iss 12, Pp 105302- (2023)

Subject Terms: Curcumin, Nanotechnology, Hydrogel, Skin permeability, HPLC, Chitosan Coated Nanocurcumin, Chemistry, QD1-999

File Description: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S1878535223007645; https://doaj.org/toc/1878-5352

Access URL: https://doaj.org/article/09fb6137469b4be98baacba039521700

Norm and Numerical Radius Inequalities for Sums of Power Series of Operators in Hilbert Spaces

Authors: Najla Altwaijry, Silvestru Sever Dragomir, Kais Feki

Source: Axioms, Vol 13, Iss 3, p 174 (2024)

Subject Terms: norm inequalities, numerical radius inequalities, power series, operators, Hilbert spaces, Mathematics, QA1-939

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Relation: https://www.mdpi.com/2075-1680/13/3/174; https://doaj.org/toc/2075-1680

Access URL: https://doaj.org/article/dddb22b63fc74c07b1a4101ed42ff017

Hölder-Type Inequalities for Power Series of Operators in Hilbert Spaces

Authors: Najla Altwaijry, Silvestru Sever Dragomir, Kais Feki

Source: Axioms, Vol 13, Iss 3, p 172 (2024)

Subject Terms: Hölder-type inequalities, power series, operators, operator norm, Hilbert spaces, numerical radius, Mathematics, QA1-939

File Description: electronic resource

Relation: https://www.mdpi.com/2075-1680/13/3/172; https://doaj.org/toc/2075-1680

Access URL: https://doaj.org/article/a08c830ecf7e4d1b9cb706ff3f42c0b3

Generalized Cauchy–Schwarz Inequalities and A-Numerical Radius Applications

Authors: Najla Altwaijry, Kais Feki, Shigeru Furuichi

Source: Axioms, Vol 12, Iss 7, p 712 (2023)

Subject Terms: Cauchy–Schwarz inequality, semi-Hilbert space, positive operator, A-numerical radius, operator A-seminorm, Mathematics, QA1-939

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Relation: https://www.mdpi.com/2075-1680/12/7/712; https://doaj.org/toc/2075-1680

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Development and Validation of Liquid Chromatography-Tandem Mass Spectrometry Method for Simultaneous Determination of Tramadol and Its Phase I and II Metabolites in Human Urine

Authors: Varsha Chauhan, Manu Sharma, Abhishek Tiwari, Varsha Tiwari, Manish Kumar, Tarun Virmani, Girish Kumar, Najla Altwaijry, Omkulthom Al kamaly, Asmaa Saleh, Abdulsalam Alhalmi

Source: Separations, Vol 10, Iss 6, p 365 (2023)

Subject Terms: Tramadol, metabolites, achiral, tandem mass spectrometry, toxicology, urine matrix, Physics, QC1-999, Chemistry, QD1-999

File Description: electronic resource

Relation: https://www.mdpi.com/2297-8739/10/6/365; https://doaj.org/toc/2297-8739

Access URL: https://doaj.org/article/e83c8a1300634182968a321598439854

New Results on Boas–Bellman-Type Inequalities in Semi-Hilbert Spaces with Applications

Authors: Najla Altwaijry, Silvestru Sever Dragomir, Kais Feki

Source: Axioms, Vol 12, Iss 7, p 638 (2023)

Subject Terms: Boas–Bellman inequality, Bessel’s inequality, joint A-numerical radius, Euclidean A-seminorm, Mathematics, QA1-939

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Relation: https://www.mdpi.com/2075-1680/12/7/638; https://doaj.org/toc/2075-1680

Access URL: https://doaj.org/article/85602925cf9141fcb160c1c6d66b652f

A Generalized Norm on Reproducing Kernel Hilbert Spaces and Its Applications

Authors: Najla Altwaijry, Kais Feki, Nicuşor Minculete

Source: Axioms, Vol 12, Iss 7, p 645 (2023)

Subject Terms: reproducing kernel Hilbert space, Berezin number, Berezin norm, inequality, Mathematics, QA1-939

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Relation: https://www.mdpi.com/2075-1680/12/7/645; https://doaj.org/toc/2075-1680

Access URL: https://doaj.org/article/3f70f4af6c8e4949a28ee3ff6df4d1db

On the Joint A-Numerical Radius of Operators and Related Inequalities

Authors: Najla Altwaijry, Silvestru Sever Dragomir, Kais Feki

Source: Mathematics, Vol 11, Iss 10, p 2293 (2023)

Subject Terms: positive operator, joint A-numerical radius, Euclidean operator A-seminorm, joint operator A-seminorm, Mathematics, QA1-939

File Description: electronic resource

Relation: https://www.mdpi.com/2227-7390/11/10/2293; https://doaj.org/toc/2227-7390

Access URL: https://doaj.org/article/47c02c5424fd4732a007531e2463757e

Bombieri-Type Inequalities and Their Applications in Semi-Hilbert Spaces

Authors: Najla Altwaijry, Silvestru Sever Dragomir, Kais Feki

Source: Axioms, Vol 12, Iss 6, p 522 (2023)

Subject Terms: positive semidefinite operator, bombieri inequality, joint A-numerical radius, euclidean A-seminorm, inequalities, Mathematics, QA1-939

File Description: electronic resource

Relation: https://www.mdpi.com/2075-1680/12/6/522; https://doaj.org/toc/2075-1680

Access URL: https://doaj.org/article/6fb0df034c8243c197bdc0002620fe15

Inequalities and Reverse Inequalities for the Joint A-Numerical Radius of Operators

Authors: Najla Altwaijry, Silvestru Sever Dragomir, Kais Feki

Source: Axioms, Vol 12, Iss 3, p 316 (2023)

Subject Terms: positive operator, joint A-numerical radius, Euclidean operator A-seminorm, joint operator A-seminorm, Mathematics, QA1-939

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Relation: https://www.mdpi.com/2075-1680/12/3/316; https://doaj.org/toc/2075-1680

Access URL: https://doaj.org/article/810cc327483f48a4b0414d3a33f7fca3

A New Seminorm for d-Tuples of A-Bounded Operators and Their Applications

Authors: Najla Altwaijry, Kais Feki, Nicuşor Minculete

Source: Mathematics, Vol 11, Iss 3, p 685 (2023)

Subject Terms: positive operator, A-adjoint operator, A-joint operator seminorm, A-hyponormal operator, A-joint spectral radius, A-joint numerical radius, Mathematics, QA1-939

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Relation: https://www.mdpi.com/2227-7390/11/3/685; https://doaj.org/toc/2227-7390

Access URL: https://doaj.org/article/60a377f0406b4429a879cb37e8e52c0a

Some New Estimates for the Berezin Number of Hilbert Space Operators

Authors: Najla Altwaijry, Kais Feki, Nicuşor Minculete

Source: Axioms, Vol 11, Iss 12, p 683 (2022)

Subject Terms: reproducing kernel Hilbert space, Berezin number, Berezin norm, inequality, Mathematics, QA1-939

File Description: electronic resource

Relation: https://www.mdpi.com/2075-1680/11/12/683; https://doaj.org/toc/2075-1680

Access URL: https://doaj.org/article/d9e872c1610e4ede8f61511baa2c8d0d

Further Inequalities for the Weighted Numerical Radius of Operators

Authors: Najla Altwaijry, Kais Feki, Nicuşor Minculete

Source: Mathematics, Vol 10, Iss 19, p 3576 (2022)

Subject Terms: positive operator, A-numerical radius, 2×2-operator matrix, A-adjoint operator, Mathematics, QA1-939

File Description: electronic resource

Relation: https://www.mdpi.com/2227-7390/10/19/3576; https://doaj.org/toc/2227-7390

Access URL: https://doaj.org/article/aa0d3dc7328e4a09afeb138ff41aeb18