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السجلات المعروضة 17713 -- 17732 من 27447
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A rare loss-of-function genetic mutation suggest a role of dermcidin deficiency in hidradenitis suppurativa pathogenesis
( Frontiers Media , 2022 , Article)Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease with a multifactorial aetiology that involves a strict interplay between genetic factors, immune dysregulation and lifestyle. Familial forms represent ... -
Rare presentation of primary varicella zoster as fatal fulminant hepatitis in adult on low-dose,short-term steroid: Case report
( Elsevier Ltd , 2019 , Article)Background Varicella zoster virus presents clinically as primary (chickenpox) or secondary (herpes zoster) infection. Cutaneous and extracutaneous dissemination may occur, usually in immunocompromised patients. VZV ... -
A Rare Sequela of Constriction Band Syndrome: Case Report.
( Lippincott, Williams & Wilkins , 2021 , Report)The patient in this case report is a 19-year-old man who presented with left foot cauliflower lesion. He complained of an inability to wear proper shoes, in addition to an unpleasant appearance of his foot. The lesion was ... -
RAS-mediated oncogenic signaling pathways in human malignancies
( Elsevier , 2018 , Article Review)Abnormally activated RAS proteins are the main oncogenic driver that governs the functioning of major signaling pathways involved in the initiation and development of human malignancies. Mutations in RAS genes and or its ... -
Rasch Modeling and Multilevel Confirmatory Factor Analysis for the Usability of the Impact of Event Scale-Revised (IES-R) during the COVID-19 Pandemic
( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)Background: Several instruments are currently used to assess Coronavirus Disease 2019 (COVID-19) -induced psychological distress, including the 22-item Impact of Event Scale-Revised (IES-R). The IES-R is a self-administered ... -
Rasulids
( Macmillan Reference USA, a part of Gale, Cengage Learning , 2016 , Book chapter)n/a -
Rates of recurrent positive SARS-CoV-2 swab results among patients attending primary care in Qatar
( Elsevier , 2021 , Article)We read with interest the work of COCOREC (Collaborative study COvid RECurrences) study group.1 Recurrent positive rt-PCR results for SARS-CoV-2 infection were reported from early in the epidemic.1 , 2 , 3 , 4 , ... -
Ratings of perceived exertion misclassify intensities for sedentary older adults during graded cycling test: Effect of supramaximal high-intensity interval training
( Frontiers Media S.A. , 2018 , Article)The present study aims (1) to evaluate ratings of perceived exertion (RPE) and corresponding intensities during a maximal graded cycling test and (2) to determine the effects of 6 weeks of supramaximal cycling exercise ... -
Rational construction and triethylamine sensing performance of foam shaped a-MoO3@SnS2 nanosheets
( Elsevier B.V. , 2022 , Article)Owing to their high surface area, stable structure and easy fabrication, composite nanomaterials with encapsulation structures have attracted considerable research interest as sensing materials to detect volatile organic ... -
Rational Contracts: Data-driven Service Provisioning in Blockchain-powered Systems
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)Smart Contracts (SCs), which are software programs that run on blockchain platforms, provide appealing security guarantees characterized by decentralized, autonomous, and verifiable execution. On the other hand, Service ... -
Rational design of a multivalent vaccine targeting arthropod-borne viruses using reverse vaccinology strategies
( Elsevier , 2024 , Article)Viruses transmitted by arthropods, such as Dengue, Zika, and Chikungunya, represent substantial worldwide health threats, particularly in countries like India. The lack of approved vaccines and effective antiviral therapies ... -
Rational design of a stable peroxidase mimic for colorimetric detection of H2O2 and glucose: A synergistic CeO2/Zeolite Y nanocomposite
( Academic Press Inc. , 2019 , Article)Owing to the high costs and instability of natural enzymes, the development of enzyme mimics based on inorganic nanomaterials has attracted a wide concern in recent years. In this work, a stable nanocomposite composed of ... -
Rational Design of Mxenes with Atomically Doped Multimetals for Efficient Electrochemical and Photoelecrochemical Conversion of Co2 to Usable Hydrocarbons
(2021 , Master Thesis)Ti3C2Tx MXene is a promising catalyst for several applications; however, its electrochemical conversion of CO2 to useable hydrocarbons has been rarely reported experimentally. Herein, two-dimensional Ti3C2Tx nanosheets ... -
Rational design of porous binary Pt-based nanodendrites as efficient catalysts for direct glucose fuel cells over a wide pH range
( Royal Society of Chemistry , 2017 , Article)The development of porous bi-metallic Pt-based nanocrystals (NCs) as efficient catalysts for the glucose oxidation reaction (GOR) over a wide pH range is still a grand challenge. Triggered by this challenge, we report the ... -
Rational development of nanomedicines for molecular targeting in periodontal disease
( Elsevier Ltd , 2018 , Article Review)Recent advances in understanding the etiology and pathogenesis of periodontal disease and polymicrobial synergy in the dysbiotic oral microbial community endorsed novel therapeutic targets and assured further improvement ... -
A Rational Exponential Model for Unconstrained Non-Linear Optimization
( Qatar University , 2002 , Article)In this Paper, a new algorithm based on the non-quadratic model is suggested for solving unconstrained optimization problems which modifies the classical conjugate gradiant methods. This technique has the same properties ... -
Rational functions: an alternative approach to asset pricing
( Routledge , 2019 , Article)This paper shows that asset prices are linear polynomials of various underlying explanatory factors and asset returns being ratios of these polynomials, are rational functions that do not add linearly when averaging. Hence, ... -
A rational logarithmic model for unconstrained non-linear optimization
( Qatar University , 1997 , Article)A new non-quadratic model is proposed for solving unconstrained optimisation problems which modifies and develops the classical conjugate gradient methods. The technique has the same properties as the classical conjugate ... -
Rational one-pot synthesis of ternary PtIrCu nanocrystals as robust electrocatalyst for methanol oxidation reaction
( Elsevier B.V. , 2020 , Article)Development of self-assembled nanoarchitectures of tailored morphology and composition for diversified applications have received great interest in the last decades. Pt-based nanocrystals (NCs) exhibited enhanced catalytic ... -
Rational one-step synthesis of porous PtPdRu nanodendrites for ethanol oxidation reaction with a superior tolerance for CO-poisoning
( Royal Society of Chemistry , 2017 , Article)Precise fabrication of porous ternary Pt-based nanodendrites is very important for electrochemical energy conversion owing to high surface area and great molecular accessibility of these nanodendrites. Herein, PtPdRu porous ...
