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681
The effect of the local inertial term on the fluid flow in channels partially filled with porous material
منشور في 2001"…Also, it is found that the deviation between the predictions of the transient and the quasi-steady models is more significant in the porous domain and the deviation decreases as the time proceeds.…"
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682
Dynamic Properties of Water Confined in Graphene-Based Membrane: A Classical Molecular Dynamics Simulation Study
منشور في 2019"…We also calculated the reorientational correlation time of the water molecules, and we found that the rotational motion of confined water inside the membrane is anisotropic and the reorientational correlation time of confined water is slower than that of bulk water. …"
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683
Trends and levels of the global, regional, and national burden of appendicitis between 1990 and 2021: findings from the Global Burden of Disease Study 2021
منشور في 2024"…Although the global age-standardised incidence rate of appendicitis has steadily decreased between 1990 and 2021, almost half of GBD regions saw an increase of greater than 10% in their age-standardised incidence rates. …"
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684
Mixed siliciclastic-carbonate-evaporite sedimentation in an arid eolian landscape: The Khor Al Adaid tide-dominated coastal embayment, Qatar
منشور في 2020"…The overall landward increase in salinity is accompanied by a decrease in the diversity of benthic fauna and their skeletal remains. …"
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article -
685
Comparison of Pulmonary Complications after Nonmyeloablative and Conventional Allogeneic Hematopoietic Cell Transplant
منشور في 2012"…Pulmonary complications were categorized according to the type of complication and the time of onset after transplantation. Median follow-up times were similar between groups (P = .70). …"
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article -
686
Comparison of pulmonary complications after nonmyeloablative and conventional allogeneic hematopoietic cell transplant
منشور في 2012"…Pulmonary complications were categorized according to the type of complication and the time of onset after transplantation. Median follow-up times were similar between groups (P = .70). …"
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article -
687
Impaired Liver Size and Compromised Neurobehavioral Activity are Elicited by Chitosan Nanoparticles in the Zebrafish Embryo Model
منشور في 2019"…Although no single sign of cardiotoxicity was observed upon exposure to 200 mg/L of ChNPs, as judged by heartbeat rate, the corrected QT interval (QTc, which measures the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle), maximum cardiac arrest, and ejection fraction assays, the same dosage elicited the impairment of both liver size (decreased liver size, but without steatosis and lipid yolk retention) and neurobehavioral activity (increased movement under different light conditions). …"
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688
Modeling the influence of daily temperature and precipitation extreme indices on vegetation dynamics in Katsina State using statistical downscaling model (SDM)
منشور في 2023"…All the scenarios present increasing minimum and maximum temperatures and decreasing precipitation, except for RCP8.5, which predicted a more adverse trend. …"
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article -
689
Assessing the Built Environment’s Reflectivity, Flexibility, Resourcefulness, and Rapidity Resilience Qualities against Climate Change Impacts from the Perspective of Different Sta...
منشور في 2023"…Therefore, the rapidity characteristic of a built environmental system to accept the change and uncertainty inherited from the past or generated over time is correlated to the system’s reflectivity quality. …"
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690
A Multidecadal Assessment of Haze Development and Fluctuations in Visibility for Arabian Peninsula
منشور في 2024"…The main objective of this paper is to analyze the long-term (1975–2023) trends of visibility fluctuations and development of haze for six countries including Kingdom of Saudi Arabia (KSA), Iraq (IRQ), Qatar (QTR), Kuwait (KWT), United Arab Emirates (UAE), and Oman (OMN). To comprehend the time-based patterns of visibility across the ME, we utilized the Mann Kendall (MK) and Modified Mann Kendall (MMK) trend estimators in both space and time. …"
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691
Receivers location privacy in avionic crowdsourced networks: Issues and countermeasures
منشور في 2021"…As a worst-case scenario, we demonstrate that, when a feasible number of receivers are deployed in the same area of a protected one, due to the nature of involved ADS-B data, standard time-based localization schemes can identify the location of any protected receiver. …"
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692
Energy conversion of heat from abandoned oil wells to mechanical refrigeration - Transient analysis and optimization
منشور في 2021"…The effects of the temperature variation of the geofluid over operation time, the working fluids, the high pressure and the temperatures of the heat source and sink are investigated. …"
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693
Evaluation of The Factors Affecting Microplastics and Nanoparticles in Plastic Water Supply Pipes
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694
A nonlinear PID servo controller for computer hard disk drives
منشور في 2020"…A nonlinear PID scheme is proposed as an efficient hard disk drive servo controller, reducing the settling time and lowering the required control effort. The controller is capable of increasing (decreasing) damping effect when the system output is moving away from (towards) the desired track. …"
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695
Response of cauliflower (<i>Brassica oleracea</i> L.) to nitric oxide application under cadmium stress
منشور في 2022"…Our results illustrated that the increasing levels of Cd in the sand, significantly (P < 0.05) decreased shoot length, root length, shoot fresh weight, root fresh weight, shoot dry weight, root dry weight, germination percentage, germination index, mean germination time, time to 50% germination, chlorophyll a, chlorophyll b, total chlorophyll and carotenoid contents in all genotypes of B. oleracea. …"
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696
Kefir exhibits anti‑proliferative and pro‑apoptotic effects on colon adenocarcinoma cells with no significant effects on cell migration and invasion
منشور في 2014"…To assess the effect of kefir on cancer metastasis, wound‑healing and time‑lapse movies, in addition to collagen‑based invasion assay, were used. …"
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697
Impact of staying at home measures during COVID-19 pandemic on the lifestyle of Qatar’s population: Perceived changes in diet, physical activity, and body weight
منشور في 2021"…Participants reported increased sitting/reclining time (1.94 h/day mean increase), screen times (2.05 h/day mean increase) with p < 0.001, and decreased exercise time (0.11 h/day mean reduction) with p < 0.001. …"
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698
Modeling the influence of daily temperature and precipitation extreme indices on vegetation dynamics in Katsina State using statistical downscaling model (SDM)
منشور في 2023"…All the scenarios present increasing minimum and maximum temperatures and decreasing precipitation, except for RCP8.5, which predicted a more adverse trend. …"
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699
Nonlinear Control of Brushless Dual-Fed Induction Generator With a Flywheel Energy Storage System for Improved System Performance
منشور في 2025"…After optimization, the SMC settling time was significantly reduced from 0.7 seconds to 19.97 milliseconds, achieving a 96.9% improvement in response speed, while its steady-state error decreased from 0.48 to 0.06, marking an 87.5% reduction in tracking error. …"
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700
Effectiveness of Positron Emission Tomography for Predicting Chemotherapy Response in Colorectal Cancer Liver Metastases
منشور في 2010"…We hypothesized that PET uptake levels were artificially decreased after chemotherapy. That is, lesions that appeared to be nonmalignant were actually viable malignant lesions.…"
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article