Publications by authors named "Magdy Omar"

Article Synopsis
  • Heat stress and low mango yields are major issues for growers, but licorice-root extract (LRE) and potassium sorbate (PS) have been shown to improve growth and fruit quality in mango trees.
  • In a study, 'Osteen' mango trees were treated with various concentrations of LRE and PS through foliar sprays, resulting in increased leaf area, number of fruits, and overall yield, while also reducing sunburn damage.
  • The treatments not only enhanced fruit quality by increasing sweetness and vitamin C content but also significantly improved antioxidant levels and total chlorophyll, making the combination of 6 g/L LRE and 3 mM PS the most effective for boosting mango productivity.
View Article and Find Full Text PDF

In years with unfavorable weather, winter frost during the blossoming season can play a significant role in reducing fruit yield and impacting the profitability of cultivation. The mango Naomi cultivar L. has a low canopy that is severely affected by the effects of frost stress.

View Article and Find Full Text PDF

Unlabelled: The novel coronavirus 2019 (2019-nCoV) is a public health emergency of international concern resulting in adverse psychological impacts during the epidemic.

Methods: From 1 to 10 April 2020, we conducted an online survey. The online survey collected information on demographic data, precautionary measures against (2019-nCoV), self-health evaluation, knowledge, and concerns about (2019-nCoV), and appraisal of crisis management.

View Article and Find Full Text PDF

The present study aimed to investigate the impact of salinity on vegetative growth, chemical constituents, and yields of cowpeas () and the possible benefits of salicylic acid (SA) on these plants after damage from salinity. To achieve these objectives, two pot experiments were carried out at the Faculty of Agriculture, Al-Azhar University, Egypt, during the two growing seasons of 2019 and 2020. The results revealed that salinity significantly decreased, and SA treatment substantially increased the plant height, number of compound leaves, number of internodes per plant, fresh weights of leaves and stems, productivity, photosynthetic pigments content, and concentrations of nitrogen (N), phosphorus (P), and potassium (K) of the cowpea plants compared with the control.

View Article and Find Full Text PDF

Introduction: Congenital Adrenal Hyperplasia (CAH) is the commonest cause of disorders of sex development (DSD) in children. The timing of surgery, early versus late, is a subject of current debate. We hypothesize that surgery for congenital adrenal hyperplasia after age two results in a worse outcome than procedures performed earlier in the neonatal period.

View Article and Find Full Text PDF

Background Sex assignment is a major issue in disorders of sexual differentiation (DSD). Not all conditions of DSD have clear recommendations on assignment and timing of surgery. Reports about sex assignment practice and the influence of culture and religion in the Arab region are scarce.

View Article and Find Full Text PDF

Background: Living with type 1 diabetes, especially in developing countries, can feel overwhelming for parents and children because constant vigilance is required for proper care with an inadequacy of resources. Our aim was to investigate the frequency and risk factors of depressive symptoms in children and adolescents with type 1 diabetes.

Methods: The study was conducted using epidemiologic studies Depression Scale Questionnaire for Children (CES-DC) on 86 patients with type 1 diabetes from the Diabetes Clinic in Alexandria University Children's Hospital, Egypt.

View Article and Find Full Text PDF

Background: Electronic waste (e-waste) is produced in staggering quantities, estimated globally to be 41.8 million tonnes in 2014. Informal e-waste recycling is a source of much-needed income in many low- to middle-income countries.

View Article and Find Full Text PDF

Background: Despite the important implications of lipohypertrophy for diabetes control, there is a dearth of information and research about the subject in children. The aim of this study was to study the prevalence of lipohypertrophy in children with type 1 diabetes, and to evaluate the associated factors.

Findings: 119 children coming for regular follow up in the diabetes clinic were examined for the presence of lipohypertrophy by inspection and palpation.

View Article and Find Full Text PDF

We studied growth hormone (GH) stimulation and insulin-like growth factor -I (IGF-I) generation tests in 15 children with neglected congenital hypothyroidism (CH) (age = 6.4 +/- 4.2 years) and measured their growth parameters for >1 years after starting thyroxine (T4) replacement.

View Article and Find Full Text PDF