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السجلات المعروضة 12864 -- 12883 من 26170
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Location privacy preservation for mobile users in location-based services
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)Because location-based cyber services are increasingly found in mobile applications (e.g., social networking and maps), user location privacy preservation is essential and remains one of the several ongoing research ... -
Location privacy preservation in secure crowdsourcing-based cooperative spectrum sensing
( Springer International Publishing , 2016 , Article)Spectrum sensing is one of the most essential components of cognitive radio since it detects whether the spectrum is available or not. However, spectrum sensing accuracy is often degraded due to path loss, interference, ... -
Location-Based Seeds Selection for Influence Blocking Maximization in Social Networks
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)Influence blocking maximization (IBM) is a key problem for viral marketing in competitive social networks. Although the IBM problem has been extensively studied, existing works neglect the fact that the location information ... -
Locations of Temporary Distribution Facilities for Emergency Response Planning
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Resource planning in emergency response phase is challenging primarily because the resources have to be delivered to the affected regions in a timely manner and in right quantities. Disasters such as the hurricanes, epidemics ... -
Lockdown Duration and Training Intensity Affect Sleep Behavior in an International Sample of 1,454 Elite Athletes
( Frontiers Media S.A. , 2022 , Article)Objective: To investigate the effect of 1) lockdown duration and 2) training intensity on sleep quality and insomnia symptoms in elite athletes. Methods: 1,454 elite athletes (24.1 ± 6.7 years; 42% female; 41% individual ... -
Log-logistic Cox Model for Breast Cancer Partly Interval Censored Data
(2021 , Master Thesis)The research in this study is concerned with implementing techniques in data which include censored observations for the evaluation of survival analysis. Analysis of survival research has numerous distinctions in the ... -
Logarithmic Bounds for Oscillatory Singular Integrals on Hardy Spaces
( Hindawi Publishing Corporation , 2016 , Article)We establish a logarithmic bound for oscillatory singular integrals with quadratic phases on the Hardy space H 1 (R n). The logarithmic rate of growth is the best possible. 2016 Hussain Al-Qassem et al. -
Logic programs with ordered disjunction: First-order semantics and expressiveness
( AAAI Publications , 2014 , Conference Paper)Logic programs with ordered disjunction (LPODs) (Brewka 2002) generalize normal logic programs by combining alternative and ranked options in the heads of rules. It has been showed that LPODs are useful in a number of areas ... -
Long Memory in Stock Returns: Evidence from The Dhaka Stock Exchange
( Qatar University , 2007 , Article)This study examines the long memory property in the weekly return series and its certain transformations of the Dhaka Stock Exchange over the period of January 1989 to January 2004. Well-known methods for detecting the ... -
Long mmWave Backhaul Connectivity Using Fixed-Wing UAVs
( Institute of Electrical and Electronics Engineers Inc. , 2022 , Conference Paper)This paper discusses the analysis of a fixed wing unmanned aerial vehicle (UAV)-based millimeter wave (mmWave) backhaul link, that is offered as a cost effective and easy to deploy solution to connect a disaster or remote ... -
Long non-coding RNAs regulated NF-κB signaling in cancer metastasis: Micromanaging by not so small non-coding RNAs
( Elsevier Ltd , 2022 , Article)Cancer metastasis is a major reason for the cancer-associated deaths and a role of long non-coding RNAs (lncRNAs) in cancer metastasis is increasingly being realized. Among the many oncogenic pathways, NF-κB signalling’s ... -
Long range dependence in an emerging stock market’s sectors: volatility modelling and VaR forecasting
( Routledge , 2018 , Article)This study evaluates the sector risk of the Qatar Stock Exchange (QSE), a recently upgraded emerging stock market, using value-at-risk models for the 7 January 2007–18 October 2015 period. After providing evidence for true ... -
Long Sun-Exposures Influencing High Sub-Cutaneous Synthesis of Vitamin-D3 may be Associated with Exacerbation of Symptoms in Allergic-Asthma.
(2018 , Article)Does excessive sun-exposure, non-use of sunscreen and/or high doses of vitamin-D3 supplements provoke exacerbation of asthma? Clinical examinations, retrospective records-access and questionnaire surveys were distributed ... -
Long – Term Soaking Effect On Strength And Deformation Characteristics Of A Gypsiferous Subgrade Soil
( Qatar University , 2003 , Article)The behaviour during long-term soaking of the California Bearing Ratio (CBR), the resilient modulus and the deformation of compacted Iraqi gypsiferous soil containing about 34% gypsum was studied. Sixteen (CBR) samples ... -
Long-acting injectable antipsychotics: A systematic review of their non-systemic adverse effect profile
( Dove Medical Press , 2021 , Article)Introduction: Long acting injectable (LAI) antipsychotics are commonly used in the treatment of schizophrenia to improve adherence and clinical outcomes. Concerns have been reported in relation to their non-systemic or ... -
Long-Distance Vowel-to-Vowel Coarticulation in Arabic: Influences of Intervening Consonant Pharyngealization and Length
( SAGE Publications Ltd , 2019 , Article)This study investigates anticipatory vowel-to-vowel coarticulation in Arabic, and seeks to determine the degree to which it is affected by the pharyngealization and length of intervening consonants. Speakers of Egyptian ... -
A LONG-TERM 10G-HYPERGRAVITY EXPOSURE PROMOTES CELL-CELL CONTACTS AND REDUCES ADHESIVENESS TO A SUBSTRATE, MIGRATION, AND INVASIVENESS OF MCF-7HUMAN BREAST CANCER CELLS.
( Exp Oncol , 2022 , Article)G-force is a fundamental force controlling human cells. Cancer is one of the 4 major health challenges in the Space missions. Cancer in Space project evaluates the reaction of human cancer cells to the conditions of the ... -
Long-term assessment of onshore and offshore wind energy potentials of Qatar
( MDPI AG , 2021 , Article)Exploitation of conventional energy resources has caused a deliberate increase in the emitted carbon in the atmosphere, which catalyzes global warming trends. This is a matter of concern, especially in Qatar, where fossil ... -
Long-Term Cost Performance of Corrosion-Resistant Reinforcements in Structural Concrete
( Qatar Univesrity Press , 2020 , Conference Paper)Corrosion, which leads to the premature deterioration of reinforced concrete (RC) structures, is increasingly an issue of global concern. Accordingly, corrosion-resistant materials have emerged as alternative reinforcement ... -
Long-term COVID-19 booster effectiveness by infection history and clinical vulnerability and immune imprinting: a retrospective population-based cohort study
( Elsevier , 2023 , Article)BackgroundLong-term effectiveness of COVID-19 mRNA boosters in populations with different previous infection histories and clinical vulnerability profiles is inadequately understood. We aimed to investigate the effectiveness ...
