Explanipedia

Efficacy of a skincare protocol in reducing xerosis cutis risk in critically ill patients: A comparative analysis using the overall skin dryness score Open

Ghada Shalaby Khalaf Mahran, Warda Ramadan Abouzeid Mohamed, Hala Abdelrahman, Ghada H. Ahmed, Mimi M. Mekawy , et al. · 2025

Background Xerosis cutis, or dry skin, is a common issue among critically ill patients and can lead to discomfort, impaired skin barrier function, and an increased risk of complications. Aim This study aimed to evaluate the efficacy of a s…

Overcoming the Absorption Bottleneck for Solid-State Infrared-to-Visible Upconversion Open

Pournima Narayanan, Manchen Hu, Arynn O. Gallegos, Linda Pucurimay, Qi Zhou , et al. · 2024

Upconversion (UC) of low-energy photons to higher-energy photons has enabled exciting advances in applications such as 3D printing, bioimaging, and more. In particular, UC of near infrared photons into visible photons has been identified a…

REMOVAL OF PRESSURE SENSITIVE TAPES FROM VINTAGE SILVER GELATIN PRINTS USING SELECTED GEL-BASED SYSTEMS: AN EXPERIMENTAL STUDY Open

Mirna WAHEEB, Ola HASSAN, Nada MOHAMED, Ghada H. Ahmed, M. R. Kamal , et al. · 2024

Historical photographs play a significant role as records, documenting the various stages of the history of Egypt and reflecting our identity and social, cultural, and religious values. Silver gelatin prints were the dominant positive prin…

The Effect of Al and Sn Doping on the Optical and Electrical Properties of ZnO Nanostructures Open

Ghada H. Ahmed, M. Hasaneen, W. S. Mohamed, H.M. Ali, E.M.M. Ibrahim · 2023

This work presents a comparison between the impact of Al and Sn doping on the structural, electrical, and optical properties of ZnO nanostructures (NSs).The samples have been synthesized using the well-known chemical vapor deposition at op…

Trade-off between efficiency and stability in Mn2+-doped perovskite light-emitting diodes Open

Sebastian Fernández, William Michaels, Manchen Hu, Pournima Narayanan, Natalia Murrietta , et al. · 2023

Although perovskite light-emitting diodes (PeLEDs) have demonstrated external quantum efficiencies (EQEs) well over 20%, their instability limits their commercial viability. Incorporating transition-metal dopants has previously improved th…

Water additives improve the efficiency of violet perovskite light-emitting diodes Open

Manchen Hu, Sebastian Fernández, Qi Zhou, Pournima Narayanan, Balreen Saini , et al. · 2023

The Trade-off Between Efficiency and Stability in Mn2+ Doped Perovskite Light-Emitting Diodes Open

Sebastian Fernández, William Michaels, Manchen Hu, Pournima Narayanan, Natalia Murrietta , et al. · 2023

While perovskite light-emitting diodes (PeLEDs) have demonstrated external quantum efficiencies (EQEs) well over 20%, their stability limits their commercial viability. Previously, the incorporation of transition metal dopants has demonstr…

Evaluation of the possible protective effect of vitamin E on nicotine-induced nephrotoxicity in rats Open

Walaa Mohammed, Ghada H. Ahmed, Wafaa A Abdellah · 2023

The goal of the current work was to investigate whether vitamin E had any protective effects against nicotine-induced nephrotoxicity in rats.Thirty mature male rats, weighing 200-250 g, were placed into 3 groups at random.Rats in the contr…

Water Additives Improve the Efficiency of Violet Perovskite Light-Emitting Diodes Open

Manchen Hu, Sebastian Fernández, Qi Zhou, Pournima Narayanan, Tracy H. Schloemer , et al. · 2022

Over the past few years, high external quantum efficiencies (EQE) have been achieved for blue, green, red, and near infrared perovskite light-emitting diodes (PeLEDs), and their energy efficiencies are approaching the efficiencies of III-V…

Luminescence Enhancement Due to Symmetry Breaking in Doped Halide Perovskite Nanocrystals Open

Ghada H. Ahmed, Yun Liu, Ivona Bravić, Xejay Ng, Ina Heckelmann , et al. · 2022

Metal-halide perovskite nanocrystals have demonstrated excellent optoelectronic properties for light-emitting applications. Isovalent doping with various metals (M2+) can be used to tailor and enhance their light emission. Although crucial…

Universal mechanism of luminescence enhancement in doped perovskite nanocrystals from symmetry analysis Open

Ghada H. Ahmed, Yun Liu, Ivona Bravić, Xejay Ng, Ina Heckelmann , et al. · 2022

Metal-halide perovskite nanocrystals have demonstrated excellent optoelectronic properties for light-emitting applications. Isovalent doping with various metals (M2+) can be used to tailor and enhance their light emission. Although crucial…

Impact of Severe Early Childhood Caries on General Health in a Group of EgyptianPreschool Children Open

R.I. Abdallah, Nancy Khattab, Mohammed El-Yazeed, Tamer Gad Rashed, Ghada H. Ahmed · 2022

Background: Early childhood caries (ECC) is a common chronic disease affecting young children and is considered a significant public health problem, it can be diagnosed in severe cases as severe early childhood caries (S-ECC).Children with…

Reflections on hosting summer undergraduate researchers in the midst of a pandemic Open

Arynn O. Gallegos, Ghada H. Ahmed, Tracy H. Schloemer, Daniel N. Congreve · 2021

Toward sustainable urban development of historical cities: Case study of Fouh City, Egypt Open

Amany Ragheb, Riham A. Ragheb, Ghada H. Ahmed · 2021

This article aims to propose an approach for preserving and improving urban heritage while maintaining environmental, social, cultural, and economic sustainability. Heritage conservation seeks to a distinct position. This is partly due to …

The Possible Protective Role of Echinacea and Ginger and both of them on the Lung of Diabetic Male Rats: Histological and Immunohistochemical Study Open

Ghada H. Ahmed, Hekmat Osman Abdel-Aziz, Hoda Elsayed, Mohammed Adly · 2021

Introduction: Diabetes is a systemic disease characterized by a state of hyperglycemia. Several changes in the respiratory functions had been detected in diabetic patients.Aim of the Work: The current study estimated the efficiency of two …

Successes and Challenges of Core/Shell Lead Halide Perovskite Nanocrystals Open

Ghada H. Ahmed, Jun Yin, Osman M. Bakr, Omar F. Mohammed · 2021

Newly emerging perovskite nanocrystals (NCs) have shown a huge potential to be utilized in a gamut of optoelectronic devices due to their superior photoluminescence quantum yield (PLQY), tunable emission wavelength, and facile synthesis pr…

Correlation of Photoluminescence and Structural Morphologies at the Individual Nanoparticle Level Open

Luis Gutiérrez‐Arzaluz, Ghada H. Ahmed, Haoze Yang, Semen Shikin, Osman M. Bakr , et al. · 2020

Single-particle spectroscopy has demonstrated great potential for analyzing the microscopic behavior of various nanoparticles (NPs). However, high-resolution optical imaging of these materials at the nanoscale is still very challenging. He…

Designed growth and patterning of perovskite nanowires for lasing and wide color gamut phosphors with long-term stability Open

Chun‐Ho Lin, Ting Li, Jing Zhang, Zong-Yi Chiao, Pai‐Chun Wei , et al. · 2020

Relationship Between Clinical Learning Environment and Students’ Critical Thinking Skills Open

Eman Mohamed Ahamed, Om Hashem Gomaa Ragab, Sahara Fahmy Elsaied, Ghada H. Ahmed · 2020

Students in learning environment learn how to apply knowledge, skills, communication and professionalization.So the objective of clinical learning is to improve students' professional critical thinking and decision-making skills and increa…

Near-unity photoluminescence quantum yield in inorganic perovskite nanocrystals by metal-ion doping Open

Ghada H. Ahmed, Jun Yin, Osman M. Bakr, Omar F. Mohammed · 2020

The luminescence and charge transport properties of inorganic CsPbX3 perovskite nanocrystals (NCs) make them attractive candidates for various optoelectronic applications, such as lasing, X-ray imaging, light communication, and light-emitt…

Tracking Ultrafast Charge Carrier Dynamics at the Interface of Semiconductor Nanocrystals Open

Ghada H. Ahmed · 2020

Understanding and controlling the ultrafast charge carrier and exciton dynamics at the interface of semiconductor nanocrystals (NCs) offer an excellent opportunity to improve the charge collection and the overall performance of many optoel…

Evaluation of microRNA-192 in patients with diabetic nephropathy Open

Gamal Saadi, Amr El Meligi, Mervat El‐Ansary, Alkhateeb Alkemary, Ghada H. Ahmed · 2019

Background Diabetic nephropathy (DN) is the leading cause of kidney failure. The role of microRNAs (miRs) which are endogenous RNA oligonucleotides that regulate gene expression in DN is not yet clearly established. This study was designed…

The possibility of combining various fabrics with crochet in producing clothing products Open

Heba El-Dessouki, Ghada H. Ahmed, Asmaa Dief · 2019

The process of mixing raw materials has become an essential feature that enriches the clothing materials. Objective: The present research attempts to offer a range of innovative garments embellished with Crochet. The research problem: has …

Molecular-structure Control of Ultrafast Electron Injection at Cationic Porphyrin–CdTe Quantum Dot Interfaces Open

Shawkat M. Aly, Ghada H. Ahmed, Basamat S. Shaheen, Jingya Sun, Omar F. Mohammed · 2015

Charge transfer (CT) at donor (D)/acceptor (A) interfaces is central to the functioning of photovoltaic and light-emitting devices. Understanding and controlling this process on the molecular level has been proven to be crucial for optimiz…

Quantum confinement-tunable intersystem crossing and the triplet state lifetime of cationic porphyrin–CdTe quantum dot nano-assemblies Open

Ghada H. Ahmed, Shawkat M. Aly, Anwar Usman, Mohamed Eita, V.A. Melnikov , et al. · 2015

We show the possibility of modulating the triplet-state lifetime of cationic porphyrins on the surface of CdTe quantum dots.

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