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Omar A. Alhaj

Observed names: Al-Haj, Omar, Alhaj, Omar, Alhaj, Omar A., O.A. Alhaj, Omar A Alhaj, Omar AlHaj, Omar Alhaj, Omar Amin Alhaj
Institution: Petra University
ORCID: 0000-0003-0082-3843
Observed ORCID: 0000-0003-0082-3843
OpenAlex ID: A5064217508
Sleep disturbances during the COVID-19 pandemic: A systematic review, meta-analysis, and meta-regression
2022 · Haitham A. Jahrami, Omar A. Alhaj, et al. · Sleep Medicine Reviews · 359
The prevalence and risk factors of screen-based disordered eating among university students: a global systematic review, meta-analysis, and meta-regression
2022 · Omar A. Alhaj, Feten Fekih-Romdhane, et al. · Eating and Weight Disorders - Studies on Anorexia Bulimia and Obesity · 112
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A systematic review, meta-analysis, and meta-regression of the prevalence of self-reported disordered eating and associated factors among athletes worldwide
2024 · Hadeel A. Ghazzawi, Lana S. Nimer, et al. · Journal of Eating Disorders · 77
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The prevalence of feeding and eating disorders symptomology in medical students: an updated systematic review, meta-analysis, and meta-regression
2022 · Feten Fekih-Romdhane, Suhad Daher-Nashif, et al. · Eating and Weight Disorders - Studies on Anorexia Bulimia and Obesity · 72
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Religious fasting and its impacts on individual, public, and planetary health: Fasting as a “religious health asset” for a healthier, more equitable, and sustainable society
2022 · Khaled Trabelsi, Achraf Ammar, et al. · Frontiers in Nutrition · 62
Symptoms of Nomophobia, Psychological Aspects, Insomnia and Physical Activity: A Cross-Sectional Study of ESports Players in Saudi Arabia
2022 · Mezna A. AlMarzooqi, Omar A. Alhaj, et al. · Healthcare · 61
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The Association between Symptoms of Nomophobia, Insomnia and Food Addiction among Young Adults: Findings of an Exploratory Cross-Sectional Survey
2021 · Haitham Jahrami, Ammar Abdelaziz, et al. · International Journal of Environmental Research and Public Health · 56
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Camel milk composition by breed, season, publication year, and country: A global systematic review, meta‐analysis, and meta‐regression
2022 · Omar A. Alhaj, Noor J. Altooq, et al. · Comprehensive Reviews in Food Science and Food Safety · 52
Chemical characterisation of oligosaccharides in commercially pasteurised dromedary camel (Camelus dromedarius) milk
2012 · O.A. Alhaj, E. Taufik, et al. · International Dairy Journal · 51
Nomophobia is Associated with Insomnia but Not with Age, Sex, BMI, or Mobile Phone Screen Size in Young Adults
2021 · Haitham Jahrami, Mona Rashed, et al. · Nature and Science of Sleep · 49
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Angiotensin converting enzyme‐inhibitory activity and antimicrobial effect of fermented camel milk (Camelus dromedarius)
2017 · Omar A Alhaj, Ali A Metwalli, et al. · International Journal of Dairy Technology · 45
Antihypertensive effect of fermented skim camel (Camelus dromedarius) milk on spontaneously hypertensive rats
2017 · Mohammed A. Yahya, Omar A. Alhaj, et al. · Nutrición Hospitalaria · 39
Hypocholesterolaemic effect of Bifidobacterium animalis subsp. lactis (Bb12) and trypsin casein hydrolysate
2010 · Omar A. Alhaj, Ara D. Kanekanian, et al. · Food Chemistry · 39
Sleep dissatisfaction is a potential marker for nomophobia in adults
2022 · Haitham A. Jahrami, Feten Fekih-Romdhane, et al. · Sleep Medicine · 37
The global prevalence of screen-based disordered eating and associated risk factors among high school students: systematic review, meta-analysis, and meta-regression
2023 · Hadeel A. Ghazzawi, Lana S. Nimer, et al. · Journal of Eating Disorders · 36
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Identification of potential ACE-inhibitory peptides from dromedary fermented camel milk
2016 · Omar Amin Alhaj · CyTA - Journal of Food · 36
Impact of Ramadan Fasting on Mental Health, Body Composition, Physical Activity, and Sleep Outcomes Among University Students
2025 · Nour Amin Elsahoryi, Mohammed O. Ibrahim, et al. · Healthcare · 34
Determination and stereochemistry of proteinogenic and non-proteinogenic amino acids in Saudi Arabian date fruits
2014 · Hatem Salama Mohamed Ali, Omar Amin Alhaj, et al. · Amino Acids · 33
The Prevalence of “at Risk” Eating Disorders among Athletes in Jordan
2022 · Hadeel A. Ghazzawi, Omar A. Alhaj, et al. · Sports · 31
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The impact of Ramadan fasting on the metabolic syndrome severity in relation to ethnicity and sex: Results of a systematic review and meta-analysis
2022 · Haitham Jahrami, Khaled Trabelsi, et al. · Nutrition Metabolism and Cardiovascular Diseases · 24
Heat Stability of Camel Milk Proteins After Sterilisation Process
2011 · Omar A. Alhaj, Ali Metwalli, et al. · Journal of Camel Practice and Research · 24
Comparison of Ethanol Stability and Chemical Composition of Camel Milk from Five Samples
2022 · Omar A. Alhaj, Roua Lajnaf, et al. · Animals · 22
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Arab Women Adherence to the Mediterranean Diet and Insomnia
2021 · Ayah T. Zaidalkilani, Omar A. Alhaj, et al. · Medicina · 22
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The association between micronutrient status and sleep quality in patients with depression: a case-control study
2020 · Haitham Jahrami, Eman Alekri, et al. · Sleep And Breathing · 22
Discrimination between Bacillus and Alicyclobacillus Isolates in Apple Juice by Fourier Transform Infrared Spectroscopy and Multivariate Analysis
2015 · Murad A. Al‐Holy, Mengshi Lin, et al. · Journal of Food Science · 22
Works count: 83
Citation count: 1,732
H-index: 22
I10-index: 41
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