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441
Subsarcolemmal cAMP signals monitored by cyclic nucleotide gated channels in hypertrophied cardiac myocytes
منشور في 2005"…Cumulative concentrationresponse curve to the non-selective E-adrenergic agonist isoprenaline (Iso) indicated a 33% decrease of the maximal cAMP accumulation produced by Iso while the effect of the hydrosoluble forskolin analog, L-858051 at a saturating concentration (100 µM) was unchanged between the two groups. …"
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article -
442
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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443
Characterizing the dynamics of climate and native desert plants in Qatar
منشور في 2024"…However, the probability of rainfall events over 80 mm was less than 5%, while low rainfall seasons (1–17 mm) were more likely (90–99% chance). …"
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444
Hydrogen energy systems: Technologies, trends, and future prospects
منشور في 2024"…Adoption at scale could decrease global <i>CO</i><sub><em>2</em></sub><sub> </sub>emissions by up to 830 million tonnes annually. …"
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445
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446
Graphite and metal nitrate-infused HDPE composites for enhanced thermal performance in energy-efficient building envelopes
منشور في 2025"…The Cu-doped CQD composite exhibited a substantial enhancement in thermal conductivity compared to bare HDPE, with an improvement of approximately 10.5%. Additionally, dielectric measurements revealed that Bi-, Fe-, and Cu-doped composites exhibited the highest improvements in conductivity, indicating strong interfacial interactions and effective charge transport pathways within the composite matrix. …"
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447
Operation optimization of propane pre-cooled mixed refrigerant LNG Process: A novel integration of knowledge-based and constrained Bayesian optimization approaches
منشور في 2024"…In addition, the optimized SEC in this study is 14.5 % to 38.6 % lower than those reported in the literature. …"
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448
Production and investigation of flexible nanofibers of sPEEK/PVP loaded with RuO2 nanoparticles
منشور في 2021"…The samples were synthesized with different concentrations of hydrous ruthenium chloride of 2 wt%, 5 wt%, and 10 wt%, and then annealed at a temperature of 300 °C for 4 h to form the ruthenium oxide nanoparticles. …"
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449
Effect of anions on the structural, morphological and dielectric properties of hydrothermally synthesized hydroxyapatite nanoparticles
منشور في 2019"…For the particles obtained from nitrate, acetate, chloride and egg shell precursors respectively give dielectric constant (εʹ) values of 9.96, 13.22, 9.92 and 10.86 at 5 MHz. The εʹ and dielectric loss (εʹʹ) values for the HA nanoparticles decrease with increase in the applied frequency as well. …"
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450
High-Performance Acetic Acid Sensing Using Cerium-MoS₂ Composite for Beverages and Food Processing Industry
منشور في 2025"…Furthermore, the repeatability of the Ce<sub>0.6</sub> -MoS<sub>2</sub> sensor was assessed over 30 days, and a marginal decrease of 5% in response was observed from day 1 to day 30.…"
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451
A Machine Learning Approach on Chest X-Rays for Pediatric Pneumonia Detection
منشور في 2022احصل على النص الكامل
doctoralThesis -
452
A clustering metaheuristic for large orienteering problems
منشور في 2022"…The metaheuristic aims to dramatically improve the computation time of a given Orienteering Problem algorithm without a significant decrease in the solution quality of that algorithm, especially for large Orienteering Problems. …"
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453
Evaluation of pretreatment and membrane configuration for pressure-retarded osmosis application to produced water from the petroleum industry
منشور في 2021"…When minimally pretreated PW (10-micron cartridge filtration (CF)) was tested in FLS mode, severe membrane fouling occurred and the PRO flux decreased by 60%. In contrast, HF modules showed <1% flux decrease under both minimal and intermediate pretreatment schemes. …"
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454
Salicylic acid restricts mercury translocation by activating strong antioxidant defense mechanisms in sweet pepper (Capsicum annum L.)
منشور في 2023"…Salicylic acid (SA) is one of the major plant hormones involved in plant growth and development under biotic and abiotic stress conditions. …"
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455
New algorithm based active method to eliminate stick-slip vibrations in drill string systems
منشور في 2022"…<p dir="ltr">The drill string is always exposed to various types of vibrations among which, stick slip is one of the most important types. It is a severe state of torsional vibrations. …"
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456
Biomolecular alterations in acute traumatic brain injury (TBI) using Fourier transform infrared (FTIR) imaging spectroscopy
منشور في 2021"…<p dir="ltr">Acute injury is one of the substantial stage post-traumatic brain injury (TBI) occurring at the moment of impact. …"
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457
Data-Efficient Wheat Disease Detection Using Shifted Window Transformer: Enhancing Accuracy, Sustainability, and Global Food Security
منشور في 2025"…<p dir="ltr">Wheat is an essential crop that plays a vital role in global food security, but is susceptible to a variety of diseases, which have the potential to drastically decrease crop productivity. Detection of disease at an early stage and in an accurate manner is crucial to minimize crop losses. …"
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458
Board Characteristics and Bank Stock Performance: Empirical Evidence from the MENA Region
منشور في 2024"…To test the robustness of our analysis, we implemented a one-limit Tobit model, which enables lower-bound censoring, and obtained similar findings thus confirming our hypotheses. …"
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459
Influenza prevalence and vaccine efficacy among diabetic patients in Qatar
منشور في 2023"…Among the typed IVA-positive cases, 33.4% were H1N1, and 7.7% were H3N2. A significant decrease in influenza infections was reported in vaccinated DM patients (14.5%) when compared to non-vaccinated patients (18.9%) (p-value = 0.006). …"
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article -
460
10-Day structured initiation protocol from multiple daily injection to hybrid closed-loop system in children and adolescents with type 1 diabetes
منشور في 2020"…The participants used the sensor for a median of 92% of the time and spent a median of 89% in Auto Mode. The mean HbA1c decreased from 8.2 ± 1.4% (66 ± 15.3 mmol/mol) at baseline to 6.7 ± 0.5% (50 ± 5.5 mmol/mol) at the end of the study (p = 0.017). …"