21 results for "Doaa Sayed"

Power consumption and cost estimation in a magnetic rotating fixed bed reactor

Doaa Sayed; Hassan Farag

Journal of Saudi Chemical Society, Vol. 27 No. 6 · 2023 · English · DOAJ Scopus

The use of iron powder for the reduction of hexavalent chromium has many benefits. It reduces Cr(VI) safely and efficiently at low cost. Cr (VI) ions reduction process effect using a revolving fixed bed reactor in a batch mode on the power number, power consumption and energy consumption cost was…

SCLUSTREAM: AN EFFICIENT ALGORITHM FOR TRACKING CLUSTERS OVER SLIDING WINDOW IN BIG DATA STREAMING

doaa sayed; Sherine rady; M Aref

International Journal of Intelligent Computing and Information Sciences, Vol. 19 No. 2 · 2019 · English · DOAJ

Mining in data streams has been a hot research topic in the recent time. A main challenge in data stream mining lies in extracting knowledge in real time from a massive, dynamic data stream in only a single scan. Data stream clustering presents an important role in data stream processing. This…

A MULTI-FEATURE ACCURATE DETECTION (MFAD) APPROACH FOR LARGE LANGUAGE MODEL-GENERATEDTEXT

doaa sayed; sally ismail; Mostafa Aref

International Journal of Intelligent Computing and Information Sciences, Vol. 25 No. 3 · 2025 · English · DOAJ

Advanced Large Language Models (LLMs) generate highly complex text that closely resembles human writing. However, their rapid development raises significant concerns, such as misinformation and academic cheating. As the responsible use of LLMs becomes increasingly critical, the ability to detect…

Recent Innovations of Mesoporous Silica Nanoparticles Combined with Photodynamic Therapy for Improving Cancer Treatment

Nady, Doaa Sayed; Hassan, Afnan; Amin, Muhammad Umair et al.

Pharmaceutics · 2023 · English · PubMed Central

Cancer is a global health burden and is one of the leading causes of death. Photodynamic therapy (PDT) is considered an alternative approach to conventional cancer treatment. PDT utilizes a light-sensitive compound, photosensitizers (PSs), light irradiation, and molecular oxygen (O(2)). This…

Also available at: DOAJ

EXPERIMENTAL TOXOPLASMOSIS IMPACT ON MALE GENERATIVE SYSTEM: HISTOPATHOLOGY AND HORMONAL ASSAYS

MARWA GHIETH; RABIE MOHAMED; RAAFAT SHAAPAN et al.

Journal of the Egyptian Society of Parasitology, Vol. 48 No. 1 · 2018 · English · DOAJ Scopus

The protozoan T. gondii infects human and animals. The parasite can alter the generative system affecting fertility. This work studied the impact of toxoplasmosis on male generative system in rats. 49 laboratory breed Wistar rats were divided into group I containing 35 rats and group II 14 control…

Removal of Cr(VI) ions from waste water by electrocoagulation using iron electrode

Yehia A. El-Taweel; Ehssan M. Nassef; Iman Elkheriany et al.

Egyptian Journal of Petroleum, Vol. 24 No. 2 · 2015 · English · DOAJ Scopus

The performance of electrocoagulation using iron electrodes for the treatment of aqueous solutions containing chromium hexavalent ions using fixed bed electrochemical batch reactor was studied. A new anode design consisting of hex nuts was connected together with a thin rode of iron. The helical…

Inactive Matrix Gla Protein in Relation to Renal and Cardiac Functions and Cardiac Valvular Calcification Among Type 2 Diabetes Patients

Sara Reda; Olfat Fawzy; Doaa Sayed et al.

Clinical Medicine Insights: Endocrinology and Diabetes, Vol. 16 · 2023 · English · DOAJ Scopus

Background: Matrix Gla protein (MGP) is a robust innate suppressor of the detrimental process of vascular calcification in the human body. Objectives: The interrelationship between circulating MGP levels and renal and cardiac dysfunction, besides echocardiographic calcification score (ECS) was…

Performance of illiterate and low-educated Egyptian elderly in SLUMS (Saint Louis University Mental Status) Examination.

Doaa Sayed Hanafi; Adel Taha Alloush; Mohamed Ahmed Alsadany et al.

The Egyptian Journal of Geriatrics and Gerontology, Vol. 10 No. 2 · 2023 · English · DOAJ

Background: The use of cognitive assessment tools originally designed for affluent nations in low- and middle-income countries (LMIC) has faced criticism due to potential cultural, educational, and literacy biases. Such adaptations may lead to misclassification and an inflated perception of…

CORRELATION BETWEEN DEMODEX FOLLICULORUM AND ACNE VULGARIS AMONG ACNE PATIENTS IN BENI-SUEIF GOVERNORATE, EGYPT

Samah Abdel Gawad; DOAA SAYED; HANAN KAMEL et al.

Journal of the Egyptian Society of Parasitology, Vol. 52 No. 1 · 2022 · English · DOAJ Scopus

Acne is one of the common skin disorders, with multifactorial chronic inflammatory disease ofpilosebaceous units. Demodex folliculorum is an obligate parasite of pilosebaceous units, infestedhealthy individuals. The study detected D. folliculorum mites in acne patients and discussedits role in…

Apelin and chemerin as promising adipokines in children with type 1 diabetes mellitus

Elsehmawy, Asmaa Abd El Wakeel; El-Toukhy, Safinaz Ebrahim; Seliem, Nora Mohamed Ahmed et al.

Diabetes Metab Syndr Obes · 2019 · English · PubMed Central

BACKGROUND: Type 1 diabetes mellitus (T1DM) is one of the most common chronic diseases in children that may be due to micro or macrovascular complications. Diabetic renal disease or nephropathy is a common complication of DM, clinically silent and the only detectable abnormality due to the presence…

Prognostic Value of CD56 Expression in Multiple Myeloma

Salah Khallaf; Eman Yousof; Eman Ahmed et al.

Research in Oncology, Vol. 16 No. 1 · 2020 · English · DOAJ

Background: Understanding the prognostic markers of multiple myeloma (MM) helps in optimizing therapeutic approaches. CD56 is frequently expressed by malignant plasma cells and its use as a prognostic marker in MM is promising. Aim: To evaluate prognostic value of CD56 expression in patients with…

Utility of Adipokines and IL-10 in Association with Anthropometry in Prediction of Insulin Resistance in Obese Children

El Sehmawy, Asmaa A; Diab, Fatma Elzhraa Ahmed; Hassan, Donia Ahmed et al.

Diabetes Metab Syndr Obes · 2022 · English · PubMed Central

AIM: This is a case-controlled study, with two hundred children enrolled. They were divided into an obese group of 100 children who had BMI ≥ 95th percentile according to CDC criteria and a group of 100 children with normal weight. All enrolled children were subjected to detailed medical history…

Clinical and Prognostic Significance of Baseline Serum Vitamin D Levels in Hospitalized Egyptian Covid-19 Patients

Mostafa, Sadek; Mohammed, Shaymaa A; Elshennawy, Salwa I et al.

Int J Gen Med · 2022 · English · PubMed Central

BACKGROUND AND AIM: Vitamin D is a hormone with essential roles in both cellular metabolism and immunity. It controls calcium homeostasis and modulates innate and adaptive immune system responses. Many studies suggested an association between vitamin D deficiency and clinical outcomes of covid-19…

Expression and Clinical Significance of Large Tumour Suppressor Kinase 2 (LATS2) Gene in Acute Myeloid Leukaemia: An Egyptian Study

Shereen Mohamed EL-Hoseiny; Raafat Mohamed Abd EL Fattah; Rehab Muhammad Abdelkareem et al.

Journal of Clinical and Diagnostic Research, Vol. 14 No. 1 · 2020 · English · DOAJ Dropped by Scopus 2018

Introduction: Large Tumour Suppressor (LATS) family proteins were discovered for the first time in Drosophila in 1995. Since that date, LATS proteins have been considered tumour suppressors. The family includes two members, LATS1 and LATS2, which have a chief function in the control of tumour…

Relation between serum sclerostin and CTRP3 levels and bone mineral density in diabetic postmenopausal women

Ahmad, Inass Hassan; Elhamed Gbr, Sally Said Abd; Ali El Naggar, Basma Mohamed Mohamed et al.

BMC Womens Health · 2024 · English · PubMed Central

BACKGROUND: Osteoporosis (OP) is a common finding in diabetic patients especially high-risk populations such as postmenopausal women. Sclerostin is a glycoprotein chiefly secreted by mature osteocytes and is considered a main regulator of bone formation. The C1q/TNF-Related Protein 3 (CTRP3) was…

Also available at: DOAJ

Plant-derived nanoparticles: Green synthesis, factors, and bioactivities

Demiana H. Hanna; Doaa Sayed Nady; Maria Wagdy Wasef et al.

Next Materials, Vol. 9 · 2025 · English · DOAJ Scopus

The remarkable physical, chemical, and biological properties of nanoparticles, such as their optical, magnetic, photocatalytic, and sensing capabilities, have made them a major focus of scientific research on a global scale. Nanomaterials can now be created using a variety of physical and chemical…

In Vitro antiproliferative potential of essential oil extract from Carica papaya L. seeds against cervical cancer

Doaa Sayed Nady; Sally A. Abdel-Halim; Mohamed-Elamir F. Hegazy et al.

Frontiers in Pharmacology, Vol. 16 · 2025 · English · DOAJ Scopus

IntroductionCervical cancer, the third most common cancer worldwide, is primarily caused by human papillomavirus (HPV) infection. This study aimed to develop natural extracts from the seeds of Carica papaya L. using the hydrodistillation method to evaluate their anticancer effects against HeLa…

Impact of Different Metabolic Indicators on Ventricular Repolarization Indices in Obese Children: A Case Control Study

Asmaa A El Sehmawy; Rasha Abd El Samad Fawaz; Nadia Ahmed Agiba et al.

Clinical Medicine Insights: Endocrinology and Diabetes, Vol. 18 · 2025 · English · DOAJ Scopus

Background: Obesity, insulin resistance, and dyslipidemia may impact ventricular repolarization in children. Objectives: The study aimed to identify the relationship between various metabolic indicators and ventricular repolarization indices among obese children compared to healthy ones. Methods: A…