15 results for "Muhammad Zeb"

Information shocks, market returns and volatility: a comparative analysis of developed equity markets in Asia

Zada, Hassan; Maqsood, Huma; Ahmed, Shakeel et al.

SN Bus Econ · 2023 · English · PubMed Central

This research explores the function of information shocks in equity returns and integrated volatility of emerging Asian markets using Swap Variance (SwV) approach on the period of 20 years (Feb 2001–Feb 2020). It compares average monthly returns and volatility of shock periods with non-shock…

Hadamard Inequalities for Strongly α,m-Convex Functions via Caputo Fractional Derivatives

Yanliang Dong; Muhammad Zeb; Ghulam Farid et al.

Journal of Mathematics, Vol. 2021 · 2021 · English · DOAJ Scopus

In this paper, we present two versions of the Hadamard inequality for α,m convex functions via Caputo fractional derivatives. Several related results are analyzed for convex and m-convex functions along with their refinements and generalizations. The error bounds of the Hadamard inequalities are…

An Empirical study on adoption of Agile Project Management Methodology and its effect on Project Success with moderating role of Organizational Culture

Hasan Ali; Muhammad Zeb Khan, Dr.; Ubaid ur Rehman

European Journal of Social Impact and Circular Economy, Vol. 2 No. 1 · 2021 · English · DOAJ

Purpose of this research is to investigate the impact of agile project management methodology on project success, as well as the role organizational support as moderator between agile project management methodology and project success. The data for this study has been collected from…

Also available at: DOAJ

On boundedness of unified integral operators for quasiconvex functions

Dongming Zhao; Ghulam Farid; Muhammad Zeb et al.

Advances in Difference Equations, Vol. 2020 No. 1 · 2020 · English · DOAJ

Abstract This work deals with the bounds of a unified integral operator with which several fractional and conformable integral operators are directly associated. By using quasiconvex and monotone functions we establish bounds of these integral operators. We prove their boundedness and continuity…

Exact Solution for the Heat Transfer of Two Immiscible PTT Fluids Flowing in Concentric Layers through a Pipe

Abdul Majeed Siddiqui; Muhammad Zeb; Tahira Haroon et al.

Mathematics, Vol. 7 No. 1 · 2019 · English · DOAJ Scopus

This article investigates the heat transfer flow of two layers of Phan-Thien-Tanner (PTT) fluids though a cylindrical pipe. The flow is assumed to be steady, incompressible, and stable and the fluid layers do not mix with each other. The fluid flow and heat transfer equations are modeled using the…

Intelligent framework for dual solutions of copper oxide nanoparticles suspension in thermally varied fluid reservoirs using the Koo–Kleinstreuer–Li (KKL) Model

Muhammad Zeb; Muhammad Awais; Asif Waheed et al.

Alexandria Engineering Journal, Vol. 124 · 2025 · English · DOAJ Dropped by Scopus 2025

This analysis examines the thermal and momentum physiognomies of copper oxide nanoparticle suspensions (nanofluids) past a permeable wall, including general magnetic effects. Understanding these dynamics is critical for enhancing heat transfer in numerous engineering applications, such as cooling…

Effectiveness of vaccination (Sinopharm) among Covid-19 positive patients in a tertiary care hospital

Muhammad Nadeem; Naveed Arshad; Muhammad Zeb et al.

Archives of Razi Institute, Vol. 79 No. 5 · 2024 · French · DOAJ Scopus

The SARS-CoV-2, has caused a pandemic of acute respiratory disease, ‘coronavirus disease 2019’ (Covid-19), posed a major threat to health and the international economy during past few years. It is believed that vaccine can stop the rapid spread of the disease. The aim of this study was to evaluate…

Electro-osmotic transport of a Williamson fluid within a ciliated microchannel with heat transfer analysis

Ali Imran; Muhammad Asif Zahoor Raja; Muhammad Shoaib et al.

Case Studies in Thermal Engineering, Vol. 45 · 2023 · English · DOAJ Dropped by Scopus 2025

A novel theoretical model is devised for electro osmotic flow of Williamson fluid model by incorporating heat transfer phenomena in a micro ciliated channel. The physical fluid model is designed by exploiting the renowned Debye–Huckel, long wavelength small Reynolds number approximation. The exact…

Molecular characterization and antibiotic susceptibility pattern of bacterial strains isolated from diabetic foot ulcers

Dilawar Khan; Muhammad Zeb; Sabir Khan Khattak et al.

Endocrine and Metabolic Science, Vol. 12 · 2023 · English · DOAJ Scopus

Introduction: Diabetic wounds are highly susceptible to a range of pathogens, particularly bacteria, due to the immunocompromised state of diabetic patients. Although diabetic wound isolates are typically polymicrobial, S. aureus is the most common bacteria found in such isolates. Objective: The…

Frequency and Association of Perforated Appendix with Patient’s Characteristics in Acute Appendicitis

Muhammad Zeb; Rafia Ahmad; Abdul Wadood et al.

Journal of Bahria University Medical and Dental College, Vol. 15 No. 01 · 2025 · English · DOAJ

Objective: To determine the frequency of perforated acute appendicitis in patients with acute appendicitis and its association with patients clinic demographic characteristics. Study design and setting: This cross sectional study was conducted in general surgery unit from 1st January 2022 to 31st…

Peutz–Jeghers syndrome with polyps in the stomach, duodenum, and small and large intestine: a case report

Zaryab Ali Shah; Muhammad Zeb; Muhammad Ilyas et al.

Journal of Medical Case Reports, Vol. 18 No. 1 · 2024 · English · DOAJ Scopus

Abstract Background Peutz–Jeghers syndrome is a rare hereditary condition characterized by gastrointestinal polyps and pigmented oral lesions. The case contributes to a deeper understanding of Peutz–Jeghers syndrome and underscores the significance of interdisciplinary collaboration for accurate…

Fabrication and Microelectronic Properties of Hybrid Organic–Inorganic (poly(9,9, dioctylfluorene)/p-Si) Heterojunction for Electronic Applications

Muhammad Tahir; Muhammad Ilyas; Fakhra Aziz et al.

Applied Sciences, Vol. 10 No. 22 · 2020 · English · DOAJ Scopus

We report on the microelectronic characteristics of a novel hybrid heterojunction device based on a solution processable semiconducting polymer poly(9,9-dioctylfluorenyl-2,7-diyl)- co-(N,N0-diphenyl)-N,N′di(p-butyl-oxy-pheyl)-1,4-diamino-benzene) (PFB) and p-type silicon (p-Si). The PFB/p-Si…

Comparison of Alvarado score, appendicitis inflammatory response score (AIR) and Raja Isteri Pengiran Anak Saleha appendicitis (RIPASA) score in predicting acute appendicitis

Muhammad Zeb; Sabir Khan Khattak; Maryam Samad et al.

Heliyon, Vol. 9 No. 1 · 2023 · English · DOAJ Scopus

Introduction: Acute Appendicitis is the most common surgical emergency encountered in emergency departments. To prevent the rate of negative appendectomies, different systems i.e. Alvarado score and Appendicitis Inflammatory Response Score (AIR) scores were used, but their diagnostic accuracy in…

Amplified Spontaneous Emission and Optical Gain in Organic Single Crystal Quinquethiophene

Muhammad Zeb; Muhammad Tahir; Fida Muhammad et al.

Crystals, Vol. 9 No. 12 · 2019 · English · DOAJ Scopus

In this paper, we report optical characteristics of an organic single crystal oligomer 5,5⁗-diphenyl-2,2′:5′,2″:5″,2‴:5‴,2⁗-quinquethiophene (P5T). P5T crystal is a thiophene/phenylene co-oligomer that possesses better charge mobility as well as photoluminescence quantum efficiency (PLQE) as…