Fawzia A. Fahim, Amr Y. Esmat, Essam Mady, EMAD K IBRAHIM,
Treatment of tumor-bearing mice with LD12.5 values of iodoacetate; IAA (1.84 mg/100 g b.w.) and/or dimethylsulphoxide; DMSO (350 mg/100 g b.w.) significantly increased the cumulative mean survival time and percentage of survivors and reduced the mean tumor weight, compared to tumor-bearing controls, however, a more pronounced effect is recorded in the combined treatment. Also, an increase in the life span (ILS%) and tumor growth inhibition ratio (T/C%) are reported and amounted to 145.78 and 43.80%, ...
Tópico(s): Eicosanoids and Hypertension Pharmacology
2003 - BioMed Central | Biological Research
Fawzia A. Fahim, Amr Y. Esmat, G Hassan, Abeer Abdel-Bary,
This study was undertaken to assess the biochemical changes induced in chronic schistosomiasis and/or chronic HCV, as well as to pinpoint the most significant parameters which could be used as dependable indices for the differentiation of single and coupled infections with or without liver cirrhosis. The selected patients were allocated into 2 broad groups: GrII (Schistosomiasis) which was subdivided into 3 subgroups: GrII(a) schistosomal patients with hepatosplenomegaly; GrII(b) hepatosplenic schistosomal ...
Tópico(s): Liver Disease and Transplantation
2000 - Hindawi Publishing Corporation | Disease Markers
Fawzia A. Fahim, Amr Y. Esmat, Hoda H. M. Fadel, Khaled M. Hassan,
AbstractThe hepatoprotective and antimutagenic effects of the rosemary essential oil and the ethanolic extract were investigated using carbon tetrachloride and cyclophosphamide as hepatotoxic and mutagenic compounds, respectively. Our results revealed that i.g. administration of the rosemary ethanolic extract (0.15g/100 g BW) to rats for 3 weeks produced the most pronounced hepatoprotective effect compared to silymarin (reference compound) due to the amelioration of most of the studied serum and liver ...
Tópico(s): Bee Products Chemical Analysis
1999 - Taylor & Francis | International Journal of Food Sciences and Nutrition
A new class of dynamic differential logic families, swing limited logic (SLL), is proposed for low-power high-performance applications. Two implementations of SLL, short-circuit current logic (SC/sup 2/L) and clock-pulse controlled logic (CPCL), are designed. Low power is achieved by aggressively reducing logic swing. Using a 0.35-/spl mu/m CMOS technology and a nominal supply voltage of 3.3 V, an SC/sup 2/L 8-bit carry ripple adder (CRA) is implemented. It offers an order of magnitude less energy-delay ...
Tópico(s): Analog and Mixed-Signal Circuit Design
2002 - Institute of Electrical and Electronics Engineers | IEEE Journal of Solid-State Circuits
A fast lock digital phase-locked-loop (PLL) frequency synthesizer for wireless applications is reported. The main advantages of the architecture include small area and digitally selectable frequency resolution. Also, a fully digital solution to reducing the phase lock time is introduced. This work is also supported by a nonlinear analytical analysis of the locking mechanism for PLLs.
Tópico(s): Analog and Mixed-Signal Circuit Design
2003 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Circuits and Systems II Analog and Digital Signal Processing
A wideband phase-locked-loop (PLL) modulator for wireless applications is reported. This modulator is based on PLL fractional-N frequency synthesis techniques along with sigma-delta modulation to randomize fractional-N spurs. A modified sigma-delta function allows for suppression of sigma-delta noise at lower frequencies, and hence allows for wider loop bandwidth. Also, sigma-delta quantization noise is reduced by using fractional division ratios. Low-power and low-area algorithmic techniques are ...
Tópico(s): Radio Frequency Integrated Circuit Design
2003 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Circuits and Systems II Analog and Digital Signal Processing
A. Bellaouar, M.S. Obrecht, Amr Fahim, M.I. Elmasry,
A low-power direct digital frequency synthesizer (DDFS) architecture is presented. It uses a smaller lookup table for sine and cosine functions compared to already existing systems with a minimum additional hardware. Only 16 points are stored in the internal memory implemented in ROM (read-only memory). The full computation of the generated sine and cosine is based on the linear interpolation between the sample points. A DDFS with 60-dBc spectral purity 29-Hz frequency resolution, and 9-bit output ...
Tópico(s): Analog and Mixed-Signal Circuit Design
2000 - Institute of Electrical and Electronics Engineers | IEEE Journal of Solid-State Circuits
Zohaib Akram, Sultan Aati, Ali Alrahlah, Fahim Vohra, Amr Fawzy,
To longitudinally evaluate the periodontal parameters and MMP-8 and CTX (C‐terminal crosslinked telopeptide of type I collagen) levels from diseased and healthy sites from cigarette and electronic cigarette (e-cig) smokers and characterize the gingival crevicular fluid (GCF) samples using Raman spectroscopy In addition, to longitudinally determine if MMP-8 and CTX are predictive factors for attachment loss in periodontitis sites. Sixty periodontally healthy and 60 periodontitis/diseased sites from ...
Tópico(s): Oral microbiology and periodontitis research
2021 - Elsevier BV | Journal of Dentistry
Qiquan Sun, Mingchao Zhang, Kenan Xie, Xue Li, Caihong Zeng, Minlin Zhou, Zhihong Liu,
... are common features of both acute and chronic AMR.13.Fahim T. Bohmig G.A. Exner M. et al. ...
Tópico(s): Transplantation: Methods and Outcomes
2012 - Elsevier BV | Kidney International
Abdulrahman Fahim, Tamer ElBatt, Amr Mohamed, Abdulla Al‐Ali,
The surge in demand for Internet of Things (IoT) systems and applications has motivated a paradigm shift in the development of viable radio frequency identification technology (RFID)-based solutions for ubiquitous real-time monitoring and tracking. Bit tracking-based anti-collision algorithms have attracted considerable attention, recently, due to its positive impact on decreasing the identification time. We aim to extend bit tracking to work effectively over erroneous channels and scalable multi ...
Tópico(s): Internet Traffic Analysis and Secure E-voting
2018 - Institute of Electrical and Electronics Engineers | IEEE Access
Heba A. El Gizawy, Alaadin E. El-Haddad, Yasmin M. Attia, Sally A. Fahim, Mai M. Zafer, Amr M. Saadeldeen,
Reusing food waste is becoming popular in pharmaceutical industries. Watermelon (Citrullus lanatus) rind is commonly discarded as a major solid waste. Here, the in vitro cytotoxic potential of watermelon rind extracts was screened against a panel of human cancer cell lines. Cell cycle analysis was used to determine the induction of cell death, whereas annexin V-FITC binding, caspase-3, BAX, and BCL-2 mRNA expression levels were used to determine the degree of apoptosis. VEGF-promoting angiogenesis ...
Tópico(s): Tannin, Tannase and Anticancer Activities
2022 - Multidisciplinary Digital Publishing Institute | Molecules
Fawzia A. Fahim, Nadia Morcos, Amr Y. Esmat,
The effects of seven feeding schedules differing only in their Mg and Mn contents on the growth rates and some metabolic aspects of Swiss albino female mice were studied. The animals were placed for 5 weeks on the seven dietary regimens and weighed weekly according to the following scheme: (1) normal diet fed (control) group; (2) Mg-deficient fed group; (3) Mn-deficient fed group; (4) coupled-deficient fed group; (5) Mg-supplemented fed group; (6) Mn-supplemented fed group, and (7) coupled-supplemented ...
Tópico(s): Magnesium in Health and Disease
1990 - Karger Publishers | Annals of Nutrition and Metabolism
Saqib Ali, Sara Noreen, Imran Farooq, Amr Bugshan, Fahim Vohra,
The novel coronavirus disease 2019 (COVID-19) is a global pandemic. Healthcare workers (HCWs) are on the frontline of treating patients infected with COVID-19. However, data related to its infection rate among HCWs are limited. The aim was to present evidence associated with the number of HCWs being infected with COVID-19 from most viral affected countries (Italy, China, United States, Spain, and France). Furthermore, we looked into the reasons for HCWs COVID 19 infections and strategies to overcome ...
Tópico(s): Disaster Response and Management
2020 - Professional Medical Publications | Pakistan Journal of Medical Sciences
Asmaa M. Fahim, Sawsan Dacrory, Amr H. Hashem, Samir Kamel,
In this study, novel Cu-complexes of heterocyclic cellulose which were synthesized via the reaction of carboxymethyl cellulose (CMC) from bagasse pulp with NH2NH2 to give hydrazide cellulose which easily reacted with CS2 to form salt and then cyclized in the presence of HCl to afford cellulose oxadiazole, or with hydrazine hydrate to give cellulose triazole. Furthermore, the cellulose oxadiazole and triazole moieties acting as chelating agents with metal ion Cu (II), and all synthesized compounds ...
Tópico(s): Nanoparticles: synthesis and applications
2024 - Elsevier BV | International Journal of Biological Macromolecules
Amr Kandeel, Manal Fahim, Ola Deghedy, Wael H. Roshdy, Mohamed K. Khalifa, Rabeh El Shesheny, Ahmed Kandeil, Amel Naguib, Salma Afifi, Amira Mohsen, Khaled Abdel-Ghaffar,
Abstract Introduction Two years after unprecedented low rates of circulation of most common respiratory viruses (SARS-CoV-2), the Egyptian ARI surveillance system detected an increase in acute respiratory infections (ARIs) with a reduced circulation of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), especially among school children. A national survey was conducted to estimate the burden and identify the viral causes of ARIs among children < 16 years of age. Methods A one-day survey ...
Tópico(s): Pneumonia and Respiratory Infections
2023 - BioMed Central | BMC Public Health
Amira A. Aboalnaga, Nehal Amer, Mohamed Abdallah Elnahas, Mona M. Salah Fayed, Sanaa Abou Zeid Soliman, Amr El Dakroury, Amr Labib, Fady Fahim,
To investigate the dental and skeletal aspects of malocclusion in the anteroposterior and vertical dimensions in a sample of temporomandibular disorders (TMD) patients and to correlate these aspects with the signs and symptoms of TMD.A total of 150 TMD patients were divided into five groups according to the Diagnostic Criteria for TMD: Group 1 = myalgia (M); Group 2 = disc displacement with reduction (DDWR); Group 3 = disc displacement without reduction (DDWOR); Group 4 = degenerative disorders (D); and Group ...
Tópico(s): Oropharyngeal Anatomy and Pathologies
2019 - | Journal of Oral & Facial Pain and Headache
Amr M. Abdel-Hakim, Fahim Bassiouny, Mohamed S. Abdel Azim, Ismail Rady, Tarek Mohey, Inmar Habib, Hesham fathi,
We report our technique of laparoscopic radical cystectomy in nine patients. Diversion was achieved by a modified Camey II orthotopic neobladder (the Y bladder) performed by a minilaparotomy in three cases and laparoscopically in the last six cases.There were eight men with muscle-invasive transitional-cell carcinoma and one woman with verrucous squamous-cell carcinoma of the bladder. The age range was 41 to 65 years. The control of the posterior and lateral bladder pedicles was achieved by vascular ...
Tópico(s): Urological Disorders and Treatments
2002 - Mary Ann Liebert, Inc. | Journal of Endourology
Amr E. Edris, Fatin Hassanien, Fahim Shaltout, Azza Elbaba, Nairoz Adel,
This study was conducted to confirm the bacterial conditions of fish products with E.O.S, and their hazards on public health.A total of 60 samples of fish products represented by smoked: herring and smoked salmon-semi cooked: fish finger and breaded shrimp (15 of each) were collected from different retail markets for bacteriological examination.The average of APC, Coliform, Escherichia coli, Mould & yeast and Staphylococcus aureus counts (log 10 cfu/g) were 4.17± 0.12, 2.92±0.16,2.19±0.23,3.96±0.14and ...
Tópico(s): Food Safety and Hygiene
2017 - | Benha Veterinary Medical Journal
Amr Kandeel, Manal Fahim, Ola Deghedy, Wael H. Roshdy, Mohamed K. Khalifa, Rabeh El Shesheny, Ahmed Kandeil, S Wagdy, Amel Naguib, Salma Afifi, Khaled Abdel-Ghaffar,
In late 2022, severe acute respiratory infections (SARI) surveillance reported an abrupt increase in non-COVID-19 infections among children after three years of drastic reductions. Signals of increased absenteeism due to respiratory symptoms among primary and preparatory school children were detected by Event-Based Surveillance. We conducted a hospital-based survey of children who were admitted with SARI to identify the causative pathogen(s) and estimate the burden of infection. A survey was conducted ...
Tópico(s): Viral gastroenteritis research and epidemiology
2023 - Nature Portfolio | Scientific Reports
Amr E. Edris, Fatin Hassanien, Fahim Shaltout, Azza Elbaba, Nairoz Adel,
Sixty random samples of fish and fish products (frozen fish: Tilapia nilotica and imported basa fillet salted fish: Mugil cephalus and sardine) (15 of each) were collected from different supermarkets in Egypt.All collected samples were microbiologically examined for determination of Aerobic Plate Count (APC), coliforms, Escherichia coli, Mould & yeast and Staphylococcal aureus counts (log 10 cfu/g).Isolation and identification of salmonella, liesteria monocytogenes and Vibrio parahaemoliticus.The bacteriological ...
Tópico(s): Food Safety and Hygiene
2017 - | Benha Veterinary Medical Journal
Umer Daood, Ninette Banday, Zohaib Akram, KH Tsoi, Prasanaa Neelakantan, Hanan Omar, Tariq Abduljabbar, Fahim Vohra, Nawwaf Al‐Hamoudi, Amr Fawzy,
The purpose of this study was to examine surface alterations and bone formation on the surface of failed dental implants (Straumann [ST] and TiUnite [TiUn]) removed due to any biological reason. In addition, failure analysis was performed to test mechanical properties. Dental implants (n = 38) from two manufacturers were collected and subjected to chemical cleaning. The presence of newly formed hydroxyapatite bone around failed implants was evaluated using micro-Raman spectroscopy. Scanning electron microscopy ...
Tópico(s): Bone Tissue Engineering Materials
2017 - Multidisciplinary Digital Publishing Institute | Coatings
Ehab El-Dabaa, H. Mei, A. El-Sayed, Amr M. Karim, H. M. Eldesoky, F. A. Fahim, P. T. LoVerde, Mohamed Saber,
Tópico(s): Enzyme Production and Characterization
1998 - American Society of Parasitologists | Journal of Parasitology
John Refaat Fahim, Ahmed G. Darwish, Amr El Zawily, Jacob Wells, Mohammed A. S. Abourehab, Samar Yehia Desoukey, Eman Zekry Attia,
Chorisia (syn. Ceiba) species are important ornamental, economic, and medicinal plants that are endowed with a diversity of secondary metabolites; however, their volatile organic compounds (VOCs) have been scarcely studied. Therefore, this work explores and compares the headspace floral volatiles of three common Chorisia species, namely Chorisia chodatii Hassl., Chorisia speciosa A. St.-Hil, and Chorisia insignis H.B.K. for the first time. A total of 112 VOCs of varied biosynthetic origins were identified ...
Tópico(s): Plant chemical constituents analysis
2023 - Elsevier BV | Saudi Pharmaceutical Journal
Amr Kandeel, Manal Fahim, Ola Deghedy, Walaa Alim, Wael H. Roshdy, Mohamed K. Khalifa, Rabeh El Shesheny, Ahmed Kandeil, Amel Naguib, Nancy Elguindy, Mohammad Abdel Fattah, Salma Afifi, Amira Mohsen, Khaled Abdel-Ghaffar,
Ramadan Umrah is the second largest Islamic pilgrimage with 2.75 million pilgrims allowed in 2022. This report presents the results of a survey among Egyptian pilgrims returning from Ramadan Umrah to monitor SARS-CoV-2 and influenza activity and identify prevalent SARS-CoV-2 variants after this mass gathering.
Tópico(s): Respiratory viral infections research
2022 - Elsevier BV | Journal of Infection and Public Health
Amr Kandeel, Ibrahim ELdeyahy, Hanaa Abu Elsood, Manal Fahim, Salma Afifi, Shaimaa Abu Kamar, Hala BahaaEldin, ElSabbah Ahmed, Amira Mohamed Mohsen, Khaled Abdel-Ghaffar,
Abstract Background Only 57 countries have vaccinated 70% of their population against COVID-19, most of them in high-income countries, whereas almost one billion people in low-income countries remained unvaccinated. In March–May 2022, Egypt's Ministry of Health and Population (MoHP) conducted a nationwide community-based survey to determine COVID-19 vaccine coverage and people's perceptions of vaccination in order to improve COVID-19 vaccination uptake and confidence among Egyptians, as well as to ...
Tópico(s): SARS-CoV-2 and COVID-19 Research
2023 - BioMed Central | BMC Public Health
Amr Kandeel, Manal Fahim, Ola Deghedy, Walaa Alim, Mohammad Abdel Fattah, Salma Afifi, Amira Mohsen, Khaled Abdel-Ghaffar,
COVID-19 vaccines are effective against infections and outcomes; however, breakthrough infections (VBT) are increasingly reported, possibly due to waning of vaccine-induced immunity or emerging variants. Most studies have focused on determining VBT rate based on antibody levels. This study aims at describing clinical features, risks, time trends, and outcomes of COVID-19 VBT among hospitalized patients in Egypt.Data of SARS-CoV-2 confirmed patients hospitalized in 16 hospitals was obtained from the ...
Tópico(s): COVID-19 Clinical Research Studies
2023 - BioMed Central | BMC Infectious Diseases
Wael H. Roshdy, Ahmed Kandeil, Rabeh El‐Shesheny, Mohamed K. Khalifa, Ahmed A. Al‐Karmalawy, Shymaa Showky, Amel Naguib, Nancy Elguindy, Manal Fahim, Hanaa Abu Elsood, Ahmed El Taweel, Azza Salamony, Amira Mohsen, Ghazi Kayali, Mohamed A. Ali, Amr Kandeel,
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) was first detected in Egypt in February 2020. Data about the prevalence rates of the SARS-CoV-2 lineages are relatively scarce. To understand the genetic characteristics of SARS-CoV-2 in Egypt during several waves of the pandemic, we analyzed sequences of 1256 Egyptian SARS-CoV-2 full genomes from March 2020 to May 2021. From one wave to the next, dominant strains have been observed to be replaced by other dominant strains. We detected ...
Tópico(s): Viral gastroenteritis research and epidemiology
2022 - Multidisciplinary Digital Publishing Institute | Pathogens
Amr Kandeel, Yassmin Moatasim, Manal Fahim, Hala BahaaEldin, Rabeh El‐Shesheny, Wael H. Roshdy, Mina Nabil Kamel, Shaymaa Shawky, Mokhtar R. Gomaa, Amel Naguib, Nancy El Guindy, Ola Deghedy, Reham Kamel, Mohamed K. Khalifa, Ramy Galal, Mohamed Hassany, Galal Mahmoud, Ahmed Kandeil, Salma Afifi, Amira Mohamed Mohsen, Mohammad Abdel Fattah, Ghazi Kayali, Mohamed A. Ali, Khaled Abdel-Ghaffar,
Abstract Background The o severe acute respiratory coronavirus 2 (SARS-CoV-2) pandemic has killed millions of people and caused widespread concern around the world. Multiple genetic variants of SARS-CoV-2 have been identified as the pandemic continues. Concerns have been raised about high transmissibility and lower vaccine efficacy against omicron. There is an urgent need to better describe how omicron will impact clinical presentation and vaccine efficacy. This study aims at comparing the epidemiologic, ...
Tópico(s): COVID-19 Clinical Research Studies
2023 - BioMed Central | BMC Infectious Diseases
... of three new members to our Editorial Board: Amr Fahim, John Wuu, and Hong Zhang. They bring with ...
2023 - Institute of Electrical and Electronics Engineers | IEEE Solid-State Circuits Letters
Refaat Kamel, Khalda Amr, Mie Afify, Yasser A. Elhosary, Abdelfattah E. Hegazy, Hoda H. Fahim, Wafaa M. Ezzat,
AIM: To determine the relation between serum microRNAs and apoptotic markers as regards development of HCC to understand the underlying mechanism of HCV related hepatocarcinogenesis. PATIENTS AND METHODS: A total of 65 serum samples (25 samples from controls, 20 samples from hepatitis and 20 samples from HCC patients) were collected for miRNAs (mir 21, mir 199-a, and mir 155) detection. Human Programmed cell death protein-4 (PDCD-4) and Human Cytochrome-C (CYT-C) were determined. RESULTS: miRNAs 21 ...
Tópico(s): Cancer-related molecular mechanisms research
2016 - ID Design 2012/DOOEL Skopje | Open Access Macedonian Journal of Medical Sciences