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Now showing items 2643-2662 of 49192
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Antenna subset selection at multi-antenna relay with adaptive modulation
( John Wiley & Sons, Ltd. , 2013 , Article)In this paper, we proposed several antenna selection schemes for cooperative diversity systems with adaptive transmission. The proposed schemes were based on dual-hop relaying where a relay with multiple-antenna capabilities ... -
Anthropogenic related variations in the epibiotic biodiversity and age structure of the “Pearl Oyster” Pinctada radiata within the eulittoral zone of Qatar
( Elsevier , 2016 , Article)Abstract Oyster aggregations provide critical habitat that contain diverse communities, with epibiota and oysters sensitive to environmental disturbance. The monitoring of oysters and associated organisms has become an ... -
Anthropometric and lifestyle characteristics of active and inactive saudi and british adolescents
( Wiley Periodicals, Inc. , 2014 , Article)To compare the anthropometric and lifestyle characteristics of active and inactive adolescents in Saudi Arabia and Britain. A school-based cross-sectional study was conducted at four cities in Saudi Arabia (Riyadh and ... -
Anthropomorphism and Its Negative Attitudes, Sociability, Animacy, Agency, and Disturbance Requirements for Social Robots: A Pilot Study
( springer link , 2021 , Conference Paper)A social robot that meets the acceptability requirements of the target end-users presents a significant challenge to robot designers. The design process is often iterative and requires continuous improvements and optimization ... -
Anti-atherosclerotic plants which modulate the phenotype of vascular smooth muscle cells
( Elsevier , 2016 , Article)Background: Cardiovascular disease (CVD) remains the leading cause of global death, with atherosclerosis being a major contributor to this mortality. Several mechanisms are implicated in the pathogenesis of this disease. ... -
Anti-atherosclerotic plants which modulate the phenotype of vascular smooth muscle cells
( Elsevier , 2016 , Article)Background: Cardiovascular disease (CVD) remains the leading cause of global death, with atherosclerosis being a major contributor to this mortality. Several mechanisms are implicated in the pathogenesis of this disease. ... -
ANTI-CANCER ACTIVITY OF SANGUINARINE ON HUMAN PAPILLARY THYROID CANCER CELL LINES BY TARGETING JAK/STAT3 PATHWAY
(2021 , Master Thesis)Background: Papillary thyroid carcinoma is the furthermost common type of thyroid cancer, representing 85 % of all thyroid cancer cases. It occurs more frequently in women and usually affects 20-55 year age group. Aim: ... -
Anti-cancer properties and mechanisms of action of thymoquinone, the major active ingredient of Nigella sativa
( Taylor & Francis , 2017 , Article)Over the past two decades, studies have documented the wide-range anti-cancer effects of Nigella sativa, known as black seed or black cumin. Thymoquinone (TQ), its major active ingredient, has also been extensively studied ... -
Anti-cancer properties of Microalgae (T1) Extract in Breast Cancer Cell Lines
( Qatar University Press , 2021 , Poster)Breast cancer (BC), a worldwide health issue, is the most common malignant cancer in women in Gulf region, including the State of Qatar. Unfortunately, malignant tumors has the capability to metastasis, which involves both ... -
Anti-corrosive and oil sensitive coatings based on epoxy/polyaniline/magnetite-clay composites through diazonium interfacial chemistry
( Nature Publishing Group , 2018 , Article)Epoxy polymer nanocomposites filled with magnetite (Fe3O4) clay (B), named (B-DPA-PANI@Fe3O4) have been prepared at different filler loading (0.1, 0.5, 1, 3, 5 wt. %). The surface modification of clay by polyaniline (PANI) ... -
Anti-diabetic and Anti-hypertensive Potential of Indigenous Edible plants of Qatar
( Qatar University Press , 2020 , Poster)Aizoon canariense, Cynomorium coccineum, Glossonema edule, and Malva parviflora, edible desert plants from Qatar, were selected to determine levels of phenolic bioactives and potential health benefits for managing early ... -
Anti-hypertensive Herbs and their Mechanisms of Action: Part I
( Frontiers Media , 2016 , Article)The use of herbal therapies for treatment and management of cardiovascular diseases (CVDs) is increasing. Plants contain a bounty of phytochemicals that have proven to be protective by reducing the risk of various ailments ... -
Anti-Hypertensive Herbs and Their Mechanisms of Action: Part II
( Frontiers Media , 2016 , Article)Traditional medicine has a history extending back to thousands of years, and during the intervening time, man has identified the healing properties of a very broad range of plants. Globally, the use of herbal therapies to ... -
Anti-hypertrophic effect of Na+/H+ exchanger-1 inhibition is mediated by reduced cathepsin B
( Elsevier , 2020 , Article)Previous studies have established the role of Na+/H+ exchanger isoform-1 (NHE1) and cathepsin B (Cat B) in the development of cardiomyocyte hypertrophy (CH). Both NHE1 and Cat B are activated under acidic conditions ... -
Anti-Metastatic and Anti-Tumor Growth Effects of Origanum majorana on Highly Metastatic Human Breast Cancer Cells: Inhibition of NFκB Signaling and Reduction of Nitric Oxide Production
( Public Library of Science , 2013 , Article)Background: We have recently reported that Origanum majorana exhibits anticancer activity by promoting cell cycle arrest and apoptosis of the metastatic MDA-MB-231 breast cancer cell line. Here, we extended our study by ... -
Anti-microbial Activity Of Graphene Oxide Against Bacteria And Fungi
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Graphene Oxide (GO) is a promising material for various applications. The team prepared GO from graphite and studied the interaction with different microorganisms. Anti-microbial properties were detected for the prepared ... -
Anti-Neoplastic Effects of Annonacin against Renal Cell Carcinoma
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Background and Objectives: Renal cell carcinoma is the most common and lethal form of all renal cancers, and accounts for 4.1% of all cancer cases in Qatar. Mutations to Von-Hippel Lindeau (VHL) gene in renal cells activates ... -
Anti-proliferative and Anti-metastatic Effect of Aqueous Extract of Origanum Syriacum on Aggressive Human Breast Cancer Cells
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Around the world as well as in Qatar, breast cancer is characterized among the highest rates of mortalities that are cancer related. Alarmingly, statistics have shown that the incidence of breast cancer is slightly higher ... -
Anti-spoofing device for biometric fingerprint scanners
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)Biometrics is a promising technology for safeguarding the personal identity and digital information of every individual. This paper describes an easy-to-integrate and inexpensive method to improve the security of fingerprint ... -
Antibacterial activity of Myrtus communis L. and Melaleuca leucadendron var. cajaputi essential oils against antibiotic-resistant bacterial strains
( Hamad bin Khalifa University Press (HBKU Press) , 2022 , Article)Background: Antimicrobial resistance (AMR) is a global threat to public health. There is a dire need for new antibiotics as AMR threatens our last-resort antibiotics efficacy. 1,2 Myrtle plants have been used in folk ...
