تصفح Qatar University Institutional Repository حسب العنوان
السجلات المعروضة 15871 -- 15890 من 27456
-
Paleozoic Igneous Activity In Egypt
( Qatar University , 1989 , Article)Based on available isotopic age data, including a few K/Ar ages obtained by the writer, a geochronological sequence of the main phases of igneous activity in Egypt during the Paleozoic is presented. Five main phases at ... -
Palestinian import - export trade modeling For the period 1968-1998, an application of seemingly unrelated regression equations
( Qatar University , 2008 , Article)Over the past three decades the Palestinian areas in the West Bank and Gaza Strip experienced the impacts of compulsory integration into the Israeli economy in the aftermath of the occupation of the area by Israel in 1967. ... -
Palmprint identification using an ensemble of sparse representations
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Article)Among various palmprint identification methods proposed in the literature, sparse representation for classification (SRC) is very attractive offering high accuracy. Although SRC has good discriminative ability, its performance ... -
Palmprint identification using sparse and dense hybrid representation
( Springer New York LLC , 2019 , Article)Among various palmprint identification methods proposed in the literature, Sparse Representation for Classification (SRC) is very attractive, offering high accuracy. Although SRC has good discriminative ability, its ... -
PAMAM Dendrimers as Anti-HER2 Positive Breast Cancer Treatment
( Qatar University Press , 2020 , Poster)Background: Poly (amidoamine) dendrimers (PAMAMs) are widely used in drug delivery systems and gene transfection as drug carriers. They also exert several biological effects like modulating gene expression, particularly ... -
Pan African Basement Of Bir Safsaf Area East Sahara African Craton
( Qatar University , 1994 , Article)Bir Safsaf area occurs at the extreme southern part of the Western Desert of Egypt. It is covered by the Pan African Basement represented by the old continental gneisses and migmatites comprising granitic, granodioritic ... -
Pan African magmatism in the Zabara District, Central Eastern Desert, Egypt: Geochemistry and Petrogenesis
( Qatar University , 1997 , Article)The rocks of the Zabara district include ophiolitic and non-ophiolitic sequences. The ophiolitic ones are metagabbro and metabasalt associated with metasediments, whereas the non -ophiolitic sequence includes intermediate ... -
Pandemic COVID-19 caused by SARS-CoV-2: genetic structure, vaccination, and therapeutic approaches
( Springer , 2021 , Article Review)We give a summary of SARS-genetic CoV-2’s structure and evolution, as well as current attempts to develop efficient vaccine and treatment methods for SARS-CoV-2 infection, in this article. Most therapeutic strategies are ... -
Pandemic Preparedness and Response: A Foldable Tent to Safely Remove Contaminated Dental Aerosols-Clinical Study and Patient Experience
( MDPI , 2022 , Article)The D-DART (Droplet and Aerosol Reducing Tent) is a foldable design that can be attached to the dental chair to prevent the spread of contaminated dental aerosols. The objective of this study was to evaluate the ability ... -
Pandemic threatens to drive wedge into US-Gulf relations
( Gulf Studies Center , 2020 , Article)It is early days, but first indications are that the global pandemic is entrenching long-drawn Middle Eastern geopolitical, political, ethnic, and sectarian battle lines rather than serving as a vehicle to build bridges ... -
(−)-Paniculatol, a new ent-labdane bromoditerpene from Laurencia paniculata
( Elsevier Science Ltd. , 1997 , Article)(−)-Paniculatol, 1, an unusual tricyclic bromoditerpene belonging to the ent-labdane series has been identified in the red alga Laurencia paniculata collected on Qatari coasts, Arabian Gulf. The structure displays an unusual ... -
Papaver Plants: Current Insights on Phytochemical and Nutritional Composition Along with Biotechnological Applications
( Hindawi , 2022 , Article)The genus Papaver is highly esteemed in the pharmacy industry, in the culinary field, and as ornamental plants. These plants are also valued in traditional medicine. Among all Papaver species, Papaver somniferum L. (opium ... -
Paper mill sludge as a source of sugars for use in the production of bioethanol and isoprene
( MDPI AG , 2020 , Article)Paper mill sludge (PMS) solids are predominantly comprised of cellulosic fibers and fillers rejected during the pulping or paper making process. Most sludges are dewatered and discharged into landfills or land spread at a ... -
A paper-based colourimetric sensor for sodium sulfite detection in beverages
( Springer Nature , 2023 , Article)Sulfite is a common food additive that prevents oxidation from damaging food nutrients, and it has long been used in the food industry as a bleaching agent. It can harm the human body if taken wrongly or excessively. In ... -
Par-eXpress: A tool for analysis of sequencing experiments with ambiguous assignment of fragments in parallel
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)With new high-throughput and low-cost sequencing technologies, an increasing amount of genetic data is becoming available to researchers. While the analysis of this vast amount of data has great potential for future ... -
Paraboloid Shell As Footing
( Qatar University , 1999 , Article)A simplified method for the design of paraboloid shell footing base on the displacement of the shell's crown where the column axial load is transferred to the footing has been developed. A case study was presented to ... -
Paradoxical Effect of Nonalcoholic Red Wine Polyphenol Extract, Provinols™, in the Regulation of Cyclooxygenases in Vessels from Zucker Fatty Rats (fa/fa)
( Hindawi Publishing Corporation , 2017 , Article)The aim of this work was to study the vascular effects of dietary supplementation of a nonalcoholic red wine polyphenol extract, Provinols, in Zucker fatty (ZF) obese rats. ZF or lean rats received diet supplemented or not ... -
Paradoxical effects of statins on endothelial and cancer cells: the impact of concentrations
( Springer Nature , 2023 , Article)In addition to their lipid-lowering functions, statins elicit additional pleiotropic effects on apoptosis, angiogenesis, inflammation, senescence, and oxidative stress. Many of these effects have been reported in cancerous ... -
Paragorgorhynchus aswanensis n.sp. (acanthocephala: Echinorhychidae): an intestinal parasite of some fishes from aswan high dam lake in upper egypt
( Qatar University , 1990 , Article)Paragorgorhynchus aswanensis n.sp. is described, both by light and scanning electron microscopy, from Lates niloticus,, Clarias lazera, Bagrus bayad, B. docmac, and Tetraodon fahaka, caught from the Aswan High Dam Lake in ... -
Parallel Computing Applied To Compensate The Effect Of Amplifier Bandwidth In The Design Of Switched Capacitor Networks
( Qatar University , 1994 , Article)A method is described for the extraction of capacitor values for switched capacitor (SC) networks which compensate for the effect of finite amplifier bandwidth in the design of SC networks using optimization. The finite ...
