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  1. Meckel’s diverticulum is the most frequent congenital anomaly of the gastrointestinal tract. It can invert or invaginate into the small intestine lumen. It is usually associated with heterotopic tissue elements.

    Authors: Mahmoud Kamel, Hani Barsoum, Suzan Talaat and Eman Mustafa

    Citation: Bulletin of the National Research Centre 2021 45:23

    Content type: Case Report

    Published on:

  2. Goats, often associated with sheep, are a vital part of the national economy in many countries around the world, and goat farming contributes significantly to the family economy, sustainable livelihoods and po...

    Authors: Nadjet Amina Ouchene-Khelifi, Nassim Ouchene and Mohamed Lafri

    Citation: Bulletin of the National Research Centre 2021 45:22

    Content type: Research

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  3. The objective of this work is to identify the most proper herbicidal treatment on sugar beet to compare different single weed control herbicide doses on sugar beet traits and associated weeds as well as yield ...

    Authors: E. M. Abd El Lateef, B. B. Mekki, M. S. Abd El-Salam and I. M. El-Metwally

    Citation: Bulletin of the National Research Centre 2021 45:21

    Content type: Research

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  4. Climatic factors have been shown to influence communicable disease dynamics especially in tropical regions where temperature could swing from extreme heat and dryness to wet and cold within a short period of t...

    Authors: Eric N. Aidoo, Atinuke O. Adebanji, Gaston E. Awashie and Simon K. Appiah

    Citation: Bulletin of the National Research Centre 2021 45:20

    Content type: Research

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  5. The Coronavirus disease 2019 (COVID-19) outbreak has become a challenging global issue after its emergence in December 2019. Due to the high adaptation of the virus, COVID-19 demonstrated a high transmission a...

    Authors: Ghadha Ibrahim Fouad

    Citation: Bulletin of the National Research Centre 2021 45:19

    Content type: Review

    Published on:

  6. Ecological risk assessment of the levels of polycyclic aromatic hydrocarbons in soils of the abandoned sections of Orji Mechanic Village, Owerri, Imo State, Nigeria. The main objective of the study was to dete...

    Authors: Francis Chizoruo Ibe, Chidi Edbert Duru, Benaiah Obinna Isiuku and Jacienta Ngozi Akalazu

    Citation: Bulletin of the National Research Centre 2021 45:18

    Content type: Research

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  7. The conventional pesticide formulations have many side effects on environmental. These effects were due to the huge quantity of pesticides used. Using of nanopesticide formulations can be reduced the quantity ...

    Authors: Al-kazafy Hassan Sabry, Hamdy Abdel-Naby Salem and Hala Mohamed Metwally

    Citation: Bulletin of the National Research Centre 2021 45:16

    Content type: Research

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  8. Attention-deficit hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders, affects 5% of children worldwide and characterized by impaired inattention, hyperactivity and impulsivity...

    Authors: Olweya Mohammed Abd El Baaki, Enas Raafat Abd El Hamid, Safaa Taha Zaki, Amani Salah El Din Alwakkad, Rania Nabil Sabry and Eman Mohamed Elsheikh

    Citation: Bulletin of the National Research Centre 2021 45:15

    Content type: Research

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  9. A series of metal solutions such as chromium sulphate, lead sulphate and nickel sulphate were prepared, and varying concentrations were used to model the optimum conditions that would favour the removal of the...

    Authors: David Ebuka Arthur and Augustina Aroh Oyibo

    Citation: Bulletin of the National Research Centre 2021 45:14

    Content type: Research

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  10. Inclusion of the statistical approach in the planning stage of adequate experimental design is crucial for correctly achieving the required conclusions. Modern applied statistics has been used extensively in n...

    Authors: Mahfouz M. M. Abd-Elgawad

    Citation: Bulletin of the National Research Centre 2021 45:13

    Content type: Review

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  11. This study aimed to evaluate the remaining amount of intra canal medicament in the root canals and their effect on microhardness of radicular dentine. In this study, ninety straight single-rooted teeth were us...

    Authors: Yousra Aly, Nada Omar, Engy M. Kataia, Maram E. Khallaf and Mohamed H. Zaazou

    Citation: Bulletin of the National Research Centre 2021 45:12

    Content type: Research

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  12. The study evaluated the growth performance, haemabiochemical and antioxidant profile of two breeds of rabbits fed diets containing varying levels of Rhizopus stolonifer fermented cocoa pod husk meal (FCPHM). Coco...

    Authors: O. A. Olugosi, T. Ogunribido, J. O. Agbede and A. O. Ayeni

    Citation: Bulletin of the National Research Centre 2021 45:11

    Content type: Research

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  13. Coptotermes sjostedti Holmgren (Isoptera:Rhinotermitidae) is one of the major termite species found infesting woods and other plant materials in Africa. Bioassays were carried out at the Arboretum of the Departme...

    Authors: Simon Idoko Okweche, Patrick Matthew Hilili and Edache Ernest Ekoja

    Citation: Bulletin of the National Research Centre 2021 45:9

    Content type: Research

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  14. The global warming has become a worldwide problem affecting adversely the human being and the productivity of the livestock. This study aimed to investigate the effect of seasonal heat stress on the incidence ...

    Authors: Amal M. Abo El-Maaty, Mohamed A. Aly, Mohamed S. Kotp, Amal H. Ali and Mahmoud A. El Gabry

    Citation: Bulletin of the National Research Centre 2021 45:8

    Content type: Research

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  15. This paper outlines the current status and mechanism for identifying dental implants, with emphasis on future direction and updated technology, and covers the existing factors influencing the identification of...

    Authors: Mohammad Ali Saghiri, Peter Freag, Amir Fakhrzadeh, Ali Mohammad Saghiri and Jessica Eid

    Citation: Bulletin of the National Research Centre 2021 45:7

    Content type: Review

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  16. Eggplant is of great renown in Egypt and worldwide as it is favorable and high value vegetable crop. Yet, many plant-parasitic nematodes (PPNs) can penetrate the roots of this plant and feed on it, causing hea...

    Authors: Mahfouz M. M. Abd-Elgawad

    Citation: Bulletin of the National Research Centre 2021 45:6

    Content type: Review

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  17. Antioxidants or vitamins are organic compounds that are needed in tiny quantities and have stimulatory role on growth and productivity of different plants. Two field experiments were conducted in two summer se...

    Authors: Elham Abd Elmoneim Badr, Mervat Shamoon Sadak, Gehan Shaker Bakhoum and Howida Hassan Ahmed Khedr

    Citation: Bulletin of the National Research Centre 2021 45:5

    Content type: Research

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  18. Wildlife reservoirs not only act as a source of infection for vectors but also serve as hosts for the vectors themselves, supporting their populations. Their public health significance in developing countries ...

    Authors: Kingsley Uchenna Ozioko, Chris Ikem Okoye, Patience Obiageli Ubachukwu, Raymond Awudu Agbu, Bede Izuchukwu Ezewudo and Celestine Osita Ezea

    Citation: Bulletin of the National Research Centre 2021 45:4

    Content type: Research

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  19. Hepatitis C virus (HCV) is a global medical condition that causes several life-threatening chronic diseases in the liver. The conventional interferon-free treatment regimens are currently in use by a blend of ...

    Authors: Stephen Ejeh, Adamu Uzairu, Gideon Adamu Shallangwa and Stephen E. Abechi

    Citation: Bulletin of the National Research Centre 2021 45:3

    Content type: Research

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  20. Susceptibility studies keep farmers, managers and household users informed and enhance breeding program’s testing against infestation and damage by storage insect pests. Therefore, laboratory tests were carrie...

    Authors: Chilee Okpile, Usman Zakka and Luke Chinaru Nwosu

    Citation: Bulletin of the National Research Centre 2021 45:2

    Content type: Research

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  21. Fomites have long been known to play a key role in the spread of disease causing agents. Hospital-associated fomites in particular have been linked with transmission of members of the Enterococci sp which are key...

    Authors: Kome Otokunefor, Blessing O. Famakin and Dorothy O. Douglas

    Citation: Bulletin of the National Research Centre 2020 44:203

    Content type: Research

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  22. The neem tree, Azadirachta indica, is very promising for the control of many insect pests, where it acting as feeding deterrents, oviposition obstruction and as a growth regulator.

    Authors: Amany Ramadan Ebeid

    Citation: Bulletin of the National Research Centre 2020 44:202

    Content type: Research

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  23. To test the antimicrobial potential of clove essential oil that has been less investigated on antimicrobial-resistant organisms (extended-spectrum β-lactamase-ESBL-producing Escherichia coli), we collected 135 ES...

    Authors: E. L. Mejía-Argueta, J. G. Santillán-Benítez, M. M. Canales-Martinez and A. Mendoza-Medellín

    Citation: Bulletin of the National Research Centre 2020 44:201

    Content type: Research

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  24. Cryptococcuria has not been reported in dogs although few cases have been described in humans and cats. Cryptococcuria is often seen as a manifestation of systemic or disseminated cryptococcosis. Early diagnos...

    Authors: Abhishek Dharm Singh, Abhiroop Banerjee and Kunal Batabyal

    Citation: Bulletin of the National Research Centre 2020 44:200

    Content type: Case Report

    Published on:

  25. Banana bunchy top virus (BBTV) is a destructive viral disease in many countries including Egypt; it causes severe economic losses in banana crop. Recently, nanotechnology was used to generate resistance against p...

    Authors: Heba A. Mahfouze, Noha K. El-Dougdoug and Sherin A. Mahfouze

    Citation: Bulletin of the National Research Centre 2020 44:199

    Content type: Research

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  26. The environment is always subjected to exposure from different natural and anthropogenic sources of trace elements. The excessive intake of these trace elements may become toxic and cause health disorders to t...

    Authors: V. Vineethkumar, V. V. Sayooj, K. P. Shimod and V. Prakash

    Citation: Bulletin of the National Research Centre 2020 44:198

    Content type: Research

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  27. This work was carried out through 2017 and 2018 seasons on Kalmata and Manzanillo olive cultivars. Trees were 15 years old, grown in sandy soil and planted at 5 × 5 m apart irrigated with saline water through ...

    Authors: Eman S. El-Hady, Mohamed A. Merwad, Mohamed F. M. Shahin and Laila F. Hagagg

    Citation: Bulletin of the National Research Centre 2020 44:197

    Content type: Research

    Published on:

  28. The reported number of COVID-19 patients increases on average along with the increased laboratory tests in Bangladesh implying a possibility of the spread of deadly coronavirus being out of control. Contrary t...

    Authors: Ayatullah Al Musabi Akanda and Redwan Ahmed

    Citation: Bulletin of the National Research Centre 2020 44:196

    Content type: Research

    Published on:

  29. A disturbance in eating behaviour (EB) is the hallmark of patients with eating disorders, and depicts a complex interaction of environmental, psychological and biological factors. In the present study, we prop...

    Authors: Awoyemi Abayomi Awofala, Olusegun Emmanuel Ogundele and Khalid Olajide Adekoya

    Citation: Bulletin of the National Research Centre 2020 44:195

    Content type: Research

    Published on:

  30. The study investigated the phytochemical constituents and antibacterial activity of Citrus lemon volatile oil extracted from pruning leaves collected from a private farm at Nobariya district against Gram-positive...

    Authors: Mohsen Asker, Souad E. El-gengaihi, Emad M. Hassan, Mona A. Mohammed and Sayeda A. Abdelhamid

    Citation: Bulletin of the National Research Centre 2020 44:194

    Content type: Research

    Published on:

  31. COVID-19, a pandemic declared by WHO, has infected about 39.5 million and killed about 1.1 million people throughout the world. There is the urgent need of more studies to identify the novel drug targets and t...

    Authors: Rahul Kunwar Singh, Brijesh Singh Yadav and Tribhuvan Mohan Mohapatra

    Citation: Bulletin of the National Research Centre 2020 44:193

    Content type: Review

    Published on:

  32. This study focused on the comparison of the essential oil percentage and constituents obtained from the dry seeds and the waste of coriander plant in order to reach the best ways to store the essential oil.

    Authors: Hend E. Wahba, Hala S. Abd Rabbu and Mohamed E. Ibrahim

    Citation: Bulletin of the National Research Centre 2020 44:192

    Content type: Research

    Published on:

  33. Breast cancer is the most common malignancy and one of the leading causes of cancer-linked deaths in women. The development of the mammary gland is regulated by oestrogen whose activities have also been linked...

    Authors: Ebidor Ufoumanefe Lawani-Luwaji and Tolulope Alade

    Citation: Bulletin of the National Research Centre 2020 44:191

    Content type: Review

    Published on:

  34. Clary sage (Salvia sclarea L.) has anti-inflammatory and anti-microbial properties; its seeds were imported from Germany for cultivation and acclimatization under the Egyptian environmental conditions as a new so...

    Authors: Ahmed E. El-Gohary, Heba M. Amer, Adel B. Salama, Hend E. Wahba and Khalid A. Khalid

    Citation: Bulletin of the National Research Centre 2020 44:190

    Content type: Research

    Published on:

  35. Many studies revealed that there is a strong relationship between neurodevelopmental delay and malnutrition. This clinic-based study aimed to detect nutritional problems and its reflection on growth and mental...

    Authors: Marwa Nasr Al Sayed, Mohamed Salah Mostafa, Howida Hosny El Gebaly, Rania Samy Mohamed and Magda Ramzy Kastandy

    Citation: Bulletin of the National Research Centre 2020 44:189

    Content type: Research

    Published on:

  36. This paper discusses the hydrological problems assessment of flash floods and the encroachment of wastewater in selected urban areas of Greater Cairo using remote sensing and geographic information system (GIS...

    Authors: Hanaa A. Megahed and Mohammed A. El Bastawesy

    Citation: Bulletin of the National Research Centre 2020 44:188

    Content type: Research

    Published on:

  37. The limited water resources in arid environments in addition to the effect of agricultural and anthropogenic activities on groundwater quantity and quality necessitate paying more attention to the quality asse...

    Authors: Hanaa A. Megahed

    Citation: Bulletin of the National Research Centre 2020 44:187

    Content type: Research

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  38. The global prevalence of diabetes mellitus is assuming worrisome proportions even among children and young adults. This study is aimed at predicting the risk of developing type 2 diabetes mellitus in a young a...

    Authors: Anthony Chibuzor Nnamudi, Noghayin E. Jerry Orhue and Ifeoma Irene Ijeh

    Citation: Bulletin of the National Research Centre 2020 44:186

    Content type: Research

    Published on:

  39. This study was designed to investigate the effect of cultural conditions on growth and production of linamarase by a local species of Lactobacillus fermentum isolated from cassava effluent. Isolation and identifi...

    Authors: Ilesanmi Festus Fadahunsi, Nafisat Kemi Busari and Olumide Samuel Fadahunsi

    Citation: Bulletin of the National Research Centre 2020 44:185

    Content type: Research

    Published on:

  40. Many factors play a role in the long-term survival of osseointegrated dental implants. Among these, the preservation of crestal bone remains to be the key principal. The aim of this comparative study was to as...

    Authors: Mahmoud Shalash and Ahmad Abdalsamad

    Citation: Bulletin of the National Research Centre 2020 44:184

    Content type: Research

    Published on:

  41. The role of mouse mammary tumor-like virus (MMTV-like virus) in human breast cancer (BC) has already been widely investigated worldwide with conflicting results. Although the researchers tried to establish the...

    Authors: Yasir Hameed, Muhammad Usman and Mukhtiar Ahmad

    Citation: Bulletin of the National Research Centre 2020 44:183

    Content type: Research

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  42. The artificial syrups on the market are known with many harmful health effects for using unnatural colors and flavors. This study evaluated the effect of different compositions of syrups and storage on the qua...

    Authors: Ibrahim Mahmoud Ahmed Ibrahim and Hamed Mohamed Hassanin Khashaba

    Citation: Bulletin of the National Research Centre 2020 44:182

    Content type: Research

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  43. In recent years, ecofriendly compounds such as chitosan has been used to alleviate the destructive effects of salt stress. Chitosan is a natural biodegradable compound with no toxicity in nature and act as a s...

    Authors: Naeem Ullah, Abdul Basit, Imran Ahmad, Izhar Ullah, Syed Tanveer Shah, Heba I. Mohamed and Shahryar Javed

    Citation: Bulletin of the National Research Centre 2020 44:181

    Content type: Research

    Published on:

  44. The coronavirus disease 2019 (COVID-19) is reported in Algeria on February 25th, 2020. Since then, the number is still increasing leading to a total number of 36,699 cases and 1333 deaths on August 12th, 2020....

    Authors: Mohamed Lounis and Dilip Kumar Bagal

    Citation: Bulletin of the National Research Centre 2020 44:180

    Content type: Research

    Published on:

  45. V600E-BRAF protein target has much potential for scientific research as therapeutic target due to its involvement in human melanoma cancer. In the current research, molecular docking investigation was conducte...

    Authors: Abdullahi Bello Umar, Adamu Uzairu, Gideon Adamu Shallangwa and Sani Uba

    Citation: Bulletin of the National Research Centre 2020 44:179

    Content type: Research

    Published on:

  46. Soil is a substantive component in biosphere habitually endangered to superfluity contaminants particularly potential toxic elements (PTEs). The source of soil contaminants is very critical in controlling both...

    Authors: Hesham Mansour, Fikry Awad, Mohamed Saber and Alaa Zaghloul

    Citation: Bulletin of the National Research Centre 2020 44:178

    Content type: Research

    Published on:

  47. Biomass fuels (bio-jet fuel) have recently attracted considerable attention as alternatives to conventional jet fuel. They have become the focus of aircraft manufacturers, engines, oil companies, governments a...

    Authors: R. El-Araby, E. Abdelkader, G. El Diwani and S. I. Hawash

    Citation: Bulletin of the National Research Centre 2020 44:177

    Content type: Research

    Published on:

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