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السجلات المعروضة 3285 -- 3304 من 4797

    • Prevalence of Chlamydia trachomatis infection in the general population of women in Qatar 

      Al-Thani, Asma; Abdul-Rahim, Hanan; Alabsi, Enas; Bsaisu, Haneen N; Haddad, Pascale; ... more authors ( BMJ Publishing Group , 2013 , Article)
      Objectives The Arabian Gulf region has limited epidemiological data related to sexually transmitted infections. The objective of this study was to estimate the prevalence of Chlamydia trachomatis infection among general ...

    • Prevalence of Gastrointestinal Protoz in Feral Cat Population in Qatar 

      Sharma, Aarti; Al-Sadeq, Duaa Walid; Al-Mohannadi, Maryam Saleh; Abu-Madi, Marawan Abdelhamid ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      Introduction: Doha city has a high feral cat population that is estimated to outnumber its human inhabitants by 2-3:1 with a total population of 2-3 million cats according to Qatar Cat Control Unit (QCCU). Doha had a ...

    • Prevalence of hepatitis B and C viruses among migrant workers in Qatar. 

      Nasrallah, Gheyath K; Chemaitelly, Hiam; Ismail, Ahmed I A; Nizamuddin, Parveen B; Al-Sadeq, Duaa W; ... more authors ( Springer Nature , 2024 , Article)
      Limited data exist on viral hepatitis among migrant populations. This study investigated the prevalence of current hepatitis B virus (HBV) infection and lifetime hepatitis C virus (HCV) infection among Qatar's migrant craft ...

    • The prevalence of HEV among non-A-C hepatitis in Qatar and efciency of serological markers for the diagnosis of hepatitis E 

      Al Absi, Enas S.; Al-Sadeq, Duaa W.; Khalili, Makiyeh; Younes, Nadin; Al‑Dewik, Nader; ... more authors ( BMC , 2021 , Article)
      Background: The rapid growth of Qatar in the last two decades has attracted a large influx of immigrant workers who mostly come from HEV-hyperendemic countries. Thus, we aim to investigate the prevalence of HEV among acute ...

    • Prevalence of microplastics in the marine environment of Qatar's exclusive economic zone 

      Castillo, Azenith; Obbard, Jeffrey Philip ( Bloomsbury Qatar Foundation Journals , 2015 , Conference Paper)
      Microplastics are now firmly recognized as a ubiquitous and growing global threat to marine biota, as well as their associated ecology and habitats. The prevalence of microplastics in the marine waters within Qatar’s ...

    • Prevalence of microplastics in the marine waters of Qatar 

      Castillo, Azenith B.; Al-Maslamani, Ibrahim; Obbard, Jeffrey Philip ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      The issue of plastic pollution in the marine environment is of increasing global concern. As plastics typically have an intrinsic durability, water insolubility and slow degradation rates, debris has now become both ...

    • Prevalence of microplastics in the marine waters of Qatar 

      Castillo, Azenith B.; Al-Maslamani, Ibrahim; Obbard, Jeffrey Philip ( Elsevier Ltd , 2016 , Article)
      Microplastics are firmly recognized as a ubiquitous and growing threat to marine biota and their associated marine habitats worldwide. The evidence of the prevalence of microplastics was documented for the first time in ...

    • The prevalence of novel psychoactive substances (NPS) use in non-clinical populations: a systematic review protocol 

      Khaled, Salma M.; Hughes, Elizabeth; Bressington, Dan; Zolezzi, Monica; Radwan, Ahmed; ... more authors ( BioMed Central , 2016 , Article)
      Background Novel psychoactive substances (NPS) are new narcotic or psychotropic drugs that are not controlled by the United Nations drug convention that may pose a serious public health threat due to their wide availability ...

    • Prevalence of Virulence/Stress Genes in Campylobacter jejuni from Chicken Meat Sold in Qatari Retail Outlets 

      Abu-Madi, Marawan; Behnke, Jerzy M.; Sharma, Aarti; Bearden, Rebecca; Al-Banna, Nadia ( Public Library of Science , 2016 , Article)
      Chicken meat from the shelves of supermarkets in Qatar was tested for the presence of Campylobacter spp. and the presence of five virulence genes (htrB, cdtB, clpP, cadF and ciaB) was assessed in isolates. Forty eight ...

    • Prevention of barite sag in water-based drilling fluids by a urea-based additive for drilling deep formations 

      Mohamed A.; Al-Afnan S.; Elkatatny S.; Hussein I. ( MDPI , 2020 , Article)
      Barite sag is a challenging phenomenon encountered in deep drilling with barite-weighted fluids and associated with fluid stability. It can take place in vertical and directional wells, whether in dynamic or static conditions. ...

    • Principles and Applicability of Integrated Remediation Strategies for Heavy Metal Removal/Recovery from Contaminated Environments 

      Alsafran, Mohammed; Saleem, Muhammad Hamzah; Al Jabri, Hareb; Rizwan, Muhammad; Usman, Kamal ( Springer , 2022 , Article)
      Contamination of agricultural soils with heavy metals present lethal consequences in terms of diverse ecological and environmental problems that entail entry of metal in food chain, soil deterioration, plant growth ...

    • Privacy preserving computation in cloud using noise-free fully homomorphic encryption (FHE) schemes 

      Wang, Yongge; Malluhi, Qutaibah M. ( Springer Verlag , 2016 , Conference Paper)
      With the wide adoption of cloud computing paradigm, it is important to develop appropriate techniques to protect client data privacy in the cloud. Encryption is one of the major techniques that could be used to achieve ...

    • A privacy-preserving handover authentication protocol for a group of MTC devices in 5G networks 

      Xiaobei, Yan; Ma, Maode ( Elsevier Ltd , 2022 , Article)
      Machine Type Communication (MTC) has been emerging for a wide range of applications and services for the Internet of Things (IoT). In some scenarios, a large group of MTC devices (MTCDs) may enter the communication coverage ...

    • Privileged but Immobile: Citizenship and Career Path of the Youths of Bicultural Families in Kuwait 

      WATANABE, Akiko ( Gulf Studies center - College of Arts & Sciences - Qatar University , 2020 , Conference Paper)
      This paper aims to depict privilegedness yet immobilities of the youths of bicultural families on their citizenship and career path, particularly on the second generations who have roots of Filipino traits on one side and ...

    • PriviPK: Certificate-less and secure email communication 

      AlSabah, Mashael; Tomescu, Alin; Lebedev, Ilia; Serpanos, Dimitrios; Devadas, Srini ( Elsevier Ltd , 2017 , Article)
      We introduce PriviPK, an infrastructure that is based on a novel combination of certificateless (CL) cryptography and key transparency techniques to enable e2e email encryption. Our design avoids (1) key escrow and deployment ...

    • Probabilistic human health risk assessment of trace elements in ballast water treated by reverse osmosis desalination plants 

      Basem, Shomar; Solano, Joaquim Rovira ( Elsevier , 2023 , Article)
      Very few studies have paid attention to the transport of heavy and toxic metals via ballast water coming from different countries of the world. In the present study, ballast water samples (n = 83) were collected from ships, ...

    • Probing into the properties of B4C reinforced nickel phosphorus-based nanocomposite coating 

      Fayyaz, Osama; Yusuf, Moinuddin M.; Bagherifard, Sara; Montemor, M. F.; Shakoor, R. A. ( Elsevier , 2022 , Article)
      Nickel-based coatings are well known for their good corrosion resistance performance. However, these materials suffer from inferior mechanical properties that limit their wider application. This work investigates the ...

    • Probing the fibrillation of lysozyme by nanoscale-infrared spectroscopy 

      Islam, Z.; Ali, M.H.; Popelka, A.; Mall, R.; Ullah, E.; ... more authors ( Taylor and Francis Ltd. , 2021 , Article)
      Amyloid fibrillation is the root cause of several neuro as well as non-neurological disorders. Understanding the molecular basis of amyloid aggregate formation is crucial for deciphering various neurodegenerative diseases. ...

    • Process optimization and method validation for efficient valorization of low- grade coal into humic substances 

      Kiran, Aftab; Javed, Javeria; Habibhah Siddiqua, Umme; Malik, Ayesha; Hassan, Afifa; ... more authors ( Elsevier , 2024 , Article)
      The exploration of low-grade coal resources and progress in the extraction method of humic substances are the core aims of this study. Ultrasonic and microwave assisted alkali extractions were compared with conventional ...

    • Processing and characterization of polyethylene-based composites 

      Khanam, P. Noorunnisa; AlMaadeed, Mariam Al Ali ( Taylor & Francis , 2015 , Article)
      Thermoplastic matrix polymer composites have gained commercial success in the semistructural and structural applications. Polyethylene (PE) is one of the most versatile and widely used thermoplastics in the world because ...