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  1. Content type: Research

    Finite element analysis was used to evaluate the stress distribution, estimate the residual stresses, bending, and amount of displacement of two nickel-titanium instruments manufactured by the same M-wire tech...

    Authors: Nada Omar, Amira Galal Ismail, Manar Galal, Mohamed H. Zaazou and Mohamed Abdullah Mohamed

    Citation: Bulletin of the National Research Centre 2019 43:148

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  2. Content type: Review

    Agricultural water resources have been limited over the years due to global warming and irregular rainfall in the arid and semi-arid regions. To mitigate the water stress in agriculture, mulching has a crucial...

    Authors: Mohammad Abdul Kader, Ashutus Singha, Mili Amena Begum, Arif Jewel, Ferdous Hossain Khan and Nazrul Islam Khan

    Citation: Bulletin of the National Research Centre 2019 43:147

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  3. Content type: Review

    Ocular toxocariasis is considered a parasitic disease of major socioeconomic importance. In spite of the high prevalence of human toxocariasis (up to 84%) among Egyptian patients, the incidence of ocular toxoc...

    Authors: Nagwa Mostafa El-Sayed and Nagham Gamal Masoud

    Citation: Bulletin of the National Research Centre 2019 43:146

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  4. Content type: Research

    Natural silk is one of the best yarns that attract large number of users and become a very important industry. Mulberry leaves is a natural food of silkworm, therefore scientists have recently incorporated met...

    Authors: Mahmoud S. I. Saad, Walaa M. M. Helaly and El-Sayed A. El-Sheikh

    Citation: Bulletin of the National Research Centre 2019 43:145

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  5. Content type: Research

    Due to rapid development of microbial resistance against chemotherapeutic agents (mostly antibiotics), it has become essential currently to screen effective, safe, cheap, and available therapeutics from variou...

    Authors: Nagwa M. Atef, Sanaa M. Shanab, Sahar I. Negm and Yasmeen A. Abbas

    Citation: Bulletin of the National Research Centre 2019 43:144

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  6. Content type: Research

    Burullus Lake has received a great attention because of its environmental and economic importance for connecting with the Mediterranean Sea through El Boughaz opening. Some of the chemical analyses were perfor...

    Authors: Ahmed A. Melegy, Mohamed S. El-Bady and Husein I. Metwally

    Citation: Bulletin of the National Research Centre 2019 43:143

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  7. Content type: Research

    The increased prevalence of type 1 diabetes mellitus in children and adolescents with its complications, especially microvascular ones (retinopathy, nephropathy, and neuropathy) that affect the expectancy of t...

    Authors: Zeinab Mohammed Monir, Mona Hussein El Samahy, Ehab Mohammed Eid, Abla Galal Khalifa, Soheir abd-El Mawgood abd-ElMaksoud, Mohamed Abdel Moneim Abbas and Hend Helmy Abd El Ghaffar

    Citation: Bulletin of the National Research Centre 2019 43:142

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  8. Content type: Research

    Rutin is one of the flavonoid compounds found in different plant species. Rutin has powerful antioxidant properties. The main target of this study is to elevate rutin content in gardenia (Gardenia jasmonides Elli...

    Authors: Amal Abd El-Latif El-Ashry, Ahmed Mohamed Magdy Gabr, Nermeen Mohamed Arafa and Mohamed Kamal El-Bahr

    Citation: Bulletin of the National Research Centre 2019 43:141

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  9. Content type: Research

    Diabetic nephropathy is the leading cause of kidney failure worldwide. NADPH oxidase 4 (NOX4) is an obvious cause for reactive oxygen species production in the kidney mainly via renin-angiotensin system. High ...

    Authors: Shymaa A. Maher, Loaa A. Tag Eldeen, Dahlia I. Badran and Taher I. Elserafy

    Citation: Bulletin of the National Research Centre 2019 43:140

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  10. Content type: Research

    Wheat is the main cultivated crop and the highest cereal used up by humans in Iraq. Two Fusarium species causing Fusarium head blight (FHB) disease on wheat has been detected only in the middle of Iraq, and Fusar...

    Authors: Mohammed Hussein Minati and Mohanad Khalaf Mohammed-Ameen

    Citation: Bulletin of the National Research Centre 2019 43:139

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  11. Content type: Research

    Bio-fertilizers as a safe alternative to the synthetic fertilizers come to the front in the agriculture requirements as they provide the planted crops with their nutrients to ensure high quality and productivi...

    Authors: Rania T. Ali, Enas M. Abdel-Ghany, Fawzia I. Mohamed, Evon M. Hanna and Zeinab M. Elashery

    Citation: Bulletin of the National Research Centre 2019 43:138

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  12. Content type: Research

    The World Health Organization (WHO) encourages using medicinal herbs and plants to substitute or minimize the use of chemicals through the global trend to go back to nature. Many studies mentioned that using m...

    Authors: Hamed A. A. Omer, Gamal M. H. El-Mallah, Soha S. Abdel-Magid, Neamat I. Bassuony, Sawsan M. Ahmed and Abdel Khalek A. El-Ghamry

    Citation: Bulletin of the National Research Centre 2019 43:137

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  13. Content type: Research

    Lignocellulose biomass such as agricultural residues is increasingly important for biofuel production. Using agricultural residues like rice straw for biofuel production has dual purposes of utilizing the huge...

    Authors: Bahiru Tsegaye, Chandrajit Balomajumder and Partha Roy

    Citation: Bulletin of the National Research Centre 2019 43:136

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  14. Content type: Research

    Tracheal intubation is the second most dangerous procedures reflected in the ICU. It includes passing a plastic tube named endotracheal tube (ET) through the vocal cords into the trachea. Errors of this proced...

    Authors: Ahmed Sabry S. Abdoon, Alaaeldin A. Soliman, Said I. Fathalla, Shaban Gadallah, Omaima M. Kandil and Ashraf H. Shaalan

    Citation: Bulletin of the National Research Centre 2019 43:135

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  15. Content type: Research

    Certain substances with some physical and chemical activities can be used to decrease the transpiration rate and alleviate plant water stress through rising leaf resistance to the diffusion of water vapor. Whe...

    Authors: Maha Mohamed Shater Abdallah, Hala Mohamed Safwat El-Bassiouny and Mohamed Aly AbouSeeda

    Citation: Bulletin of the National Research Centre 2019 43:134

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  16. Content type: Research

    Sowing time and suitable planting media are considered basic requirements to get the maximum yield and high profit for their direct and significant impact on seedlings quality and productivity of trees later. ...

    Authors: Thanaa Sh. M. Mahmoud, E. K. Nabila, M. S. Abou Rayya and R. A. Eisa

    Citation: Bulletin of the National Research Centre 2019 43:133

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  17. Content type: Research

    The present study was planned to estimate the heavy metal concentrations in water samples and fish tissue residue (liver and muscle) of cultured Oreochromis niloticus as well as metallothionein (MT) gene expressi...

    Authors: Shenouda M. Girgis, Dalia M. Mabrouk, Magdy I. Hanna and Amira Abd ElRaouf

    Citation: Bulletin of the National Research Centre 2019 43:131

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  18. Content type: Research

    Microalgae, the third-generation source of biofuel have invaluable bio-refineries such as carotenoids. The accumulation of carotenoids in the algal cell is based on several parameters during algal growth. Some...

    Authors: Samar A. El-Mekkawi, H. S. Hussein, S. A. Abo El-Enin and N. N. El-Ibiari

    Citation: Bulletin of the National Research Centre 2019 43:130

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  19. Content type: Research

    The use of phytogenic feed supplement is now being considered in broiler production for enhancing their performance and health status. In this 42-day feeding trial, the effects of a diet supplemented with pawp...

    Authors: O. D. Oloruntola

    Citation: Bulletin of the National Research Centre 2019 43:129

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  20. Content type: Research

    This study investigates the effects of nano-curcumin on gene expression of insulin and insulin receptor in diabetic rats. Forty female rats were divided into four groups (ten rats for each). The first group wa...

    Authors: Weaam Gouda, Naglaa A. Hafiz, Lamiaa Mageed, Ahmed S. Alazzouni, Wagdy K. B. Khalil, Mie Afify and Mohamed D. E. Abdelmaksoud

    Citation: Bulletin of the National Research Centre 2019 43:128

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  21. Content type: Research

    Gastrointestinal parasitic diseases remain an obstacle in goat industry in Egypt and worldwide. This study was conducted for assessing the prevalence of the gastrointestinal parasitic infections among goats in...

    Authors: Noha M. F. Hassan, Tarek K. Farag, Nadia M. T. Abu El Ezz and Hala A. A. Abou-Zeina

    Citation: Bulletin of the National Research Centre 2019 43:127

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  22. Content type: Research

    High temperature is a crucial problem in growing good crops of high temperature-sensitive vegetables including tomato. Therefore, this study was carried out to investigate the effects of pre-sowing heat treatm...

    Authors: Sohair K. Ibrahim and Lulwa A. El-Muqadam

    Citation: Bulletin of the National Research Centre 2019 43:126

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  23. Content type: Research

    The present study deals with mineralogy, diagenesis, and their impact on chemical composition for early Paleozoic, Cambro-Ordovician, (Adediya and Abu Hamata formations) and late Paleozoic, early Carboniferous...

    Authors: S. D. Abayazeed, A. M. Ibrahim, Abdalla Soliman Alshami and D. A. Saadawy

    Citation: Bulletin of the National Research Centre 2019 43:124

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  24. Content type: Review

    Toll-like receptors (TLRs) are type I integral transmembrane receptors involved in recognition and conveying of pathogens to the immune system. These receptors are located either on cell surfaces or within end...

    Authors: Salwa Refat El-Zayat, Hiba Sibaii and Fathia A. Mannaa

    Citation: Bulletin of the National Research Centre 2019 43:123

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  25. Content type: Research

    The potato tuber moth (PTM), Phthorimaea operculella (Zeller) (Lepidoptera: Gelechiidae), is an important pest. It attacks several cultivated solanaceous plants including potato (Solanum tubersum), tobacco (Nicot...

    Authors: Aziza Mohamed Fouad Sharaby, Mohamed Ahmed Gesraha and Sahar Ahmed Baker Fallatah

    Citation: Bulletin of the National Research Centre 2019 43:122

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  26. Content type: Research

    Zinc deficiency in children with cholestatic liver diseases could affect growth and immunity. Zinc supplementation is one of the strategies to prevent the consequences of zinc deficiency in children. We aimed ...

    Authors: Nehal Abdelhamid, Aliaa Wahby and Manal E. Kandil

    Citation: Bulletin of the National Research Centre 2019 43:121

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  27. Content type: Research

    The application of the free radical nitric oxide (NO) donors (arginine and sodium nitroprusside) have protective effects on plants in alleviating salinity stress throughout improving the enzymatic activities o...

    Authors: Amany A. Ramadan, Ebtihal M. Abd Elhamid and Mervat Sh. Sadak

    Citation: Bulletin of the National Research Centre 2019 43:118

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  28. Content type: Research

    Water deficit stress is considered as one of the most important environmental stresses which is more harmful to strategic crops, as it reduces the final crop yield by up to 40%. Therefore, the aim of this rese...

    Authors: Rasha Sabry Tawfik and Almoataz Bellah Ali El-Mouhamady

    Citation: Bulletin of the National Research Centre 2019 43:117

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  29. Content type: Research

    The function of cathelicidins-4 (CATH4) is not limited to microbial killing, but extends to other aspects of immunity and tissue repair. The presence of different CATH4 variants including intron retention affects...

    Authors: Ahlam A. Abou Mossallam, Soheir M. El Nahas, Esraa A. Balabel, El Hassan T. Shahwan and Noha M. Osman

    Citation: Bulletin of the National Research Centre 2019 43:116

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  30. Content type: Research

    The continuous spread of multidrug-resistant and new strains of disease-causing microbe have become a great concern to the world health community. There is therefore the need for the development of new and eff...

    Authors: Abiche Ekalu, Rachael Gbekele-Oluwa Ayo, James D. Habila and Ibrahim Hamisu

    Citation: Bulletin of the National Research Centre 2019 43:115

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  31. Content type: Research

    Description of goat populations in Egypt is necessary for providing information on common goat types and their characteristics and may be essential for the pointing and accomplishment of any intervention strat...

    Authors: S. Abd-Allah, M. I. Mohamed, M. M. Shoukry, Fatma M. Salman and H. H. Abd- El Rahman

    Citation: Bulletin of the National Research Centre 2019 43:114

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  32. Content type: Research

    Somatic embryogenesis is one of the most popular in vitro regeneration methods for mass micropropagation. In the present study, somatic embryogenesis via zygotic embryos was studied in Asparagus racemosus Willd. ...

    Authors: Juhi Chaudhary and Prem Kumar Dantu

    Citation: Bulletin of the National Research Centre 2019 43:113

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  33. Content type: Research

    Phenolic compounds are low molecular compounds present in all tissues of higher plants and play an important role in plant development. A field experiment was carried out during two winter seasons 2014/2015 an...

    Authors: Mona G. Dawood, Mervat Sh. Sadak, Bakry A. Bakry and Mohamed F. El Karamany

    Citation: Bulletin of the National Research Centre 2019 43:112

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  34. Content type: Research

    The mechanical properties of Mn-Cr ferrite of different compositions are important for industrial applications in everyday life. Ferrites are used in electric choke coils, electric transformers, and many other...

    Authors: M. H. Abdellatif and A. A. Azab

    Citation: Bulletin of the National Research Centre 2019 43:111

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  35. Content type: Research

    High temperature is a crucial problem in growing good crops of high temperature sensitive vegetables including tomato. Therefore, this study was carried out to investigate the effects of pre-sowing heat treatm...

    Authors: Sohair K. Ibrahim and Lulwa A. El- Muqadam

    Citation: Bulletin of the National Research Centre 2019 43:110

    Published on:

  36. Content type: Research

    Both inflammation and oxidative stress (OS) stimulate each other and act together in providing defense against recurrent vulvovaginal infections (RVVI). Both processes are in such a tight link, that defect in ...

    Authors: Namarta Kalia, Manpreet Kaur, Sujata Sharma and Jatinder Singh

    Citation: Bulletin of the National Research Centre 2019 43:109

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  37. Content type: Review

    Alzheimer’s disease (AD) is a chronic neurodegenerative disease for which there are no effective pharmaceutical drugs; their action is restricted only to symptomatic relief. Recently, it was evidenced that the...

    Authors: Ghadha Ibrahim Fouad and Maha Zaki Rizk

    Citation: Bulletin of the National Research Centre 2019 43:108

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  38. Content type: Research

    The main objectives of this study were to compare two in vitro selection procedures for developing drought-tolerant cell lines from rice cultivars, regenerate plants from the selected cells, and use the random...

    Authors: Adel Elshafei, Mohamed Barakat, Sanaa Milad, Sabry Khattab and Muhammad Al-mutlaq

    Citation: Bulletin of the National Research Centre 2019 43:107

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  39. Content type: Research

    Breeding programs need to work with magnitudes of genetic variation in order to achieve the best results. In this study, we have estimated the genetic diversity and evaluated the field performance of 18 faba b...

    Authors: Adel Ahmed Mohamed Elshafei, Mohamed Abd Elaziz Amer, Magda Aly Mahmoud Elenany and Ahmed Gamal Abd Elhameed Helal

    Citation: Bulletin of the National Research Centre 2019 43:106

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  40. Content type: Research

    Grain amaranth (Amaranthus spp.) has been cultivated since ancient times in some countries in the world and it is one of the oldest food crops. At present, the crop has gained more importance in the plains of Ind...

    Authors: Mayuri J. Gelotar, Darshan T. Dharajiya, S. D. Solanki, N. N. Prajapati and Kapil K. Tiwari

    Citation: Bulletin of the National Research Centre 2019 43:103

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  41. Content type: Research

    Glucoamylase enzyme is one of the most important enzymes. It catalyzes the hydrolysis of starch into soluble sugars. It was covalently immobilized onto κ-carrageenan gel beads after activation by using polyeth...

    Authors: Mohamed E. Hassan, Qingyu Yang and Zhigang Xiao

    Citation: Bulletin of the National Research Centre 2019 43:102

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  42. Content type: Research

    Orobanche ramosa (Broomrape) is an obligate root parasite belonging to Orobanchaceae. It causes a great damage to tomato plants. Several attempts have been done in order to control this parasitic weed. So, the ai...

    Authors: Raafat Ragheb El-Masry, Ebrahim Roshdy El-Desoki, Mahmoud Ahmed Touny El-Dabaa, Nadia Khalil Messiha and Salah El-Din Abd-Elghany Ahmed

    Citation: Bulletin of the National Research Centre 2019 43:101

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  43. Content type: Letter to the Editor

    Pseudomonas aeruginosa and Streptococcus pyogenes are the most common pathogens to humans and are able to form a biofilm following ineffective precautionary approach. Biofilm is defined as a surface-attached comm...

    Authors: Mohammad Abdulraheem Al-kafaween, Abu Bakar Mohd Hilmi, Norzawani Jaffar, Hamid Ali Nagi Al-Jamal and Mohd Khairi Zahri

    Citation: Bulletin of the National Research Centre 2019 43:100

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NRC Vision

The NRC has to correspond to the country's key production and services sectors through the research conducted in different areas of science and technology, scientific consultation and training as well.

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The NRC mission is to conduct basic and applied research within the major fields of interest in order to develop production and services sectors.

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