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561
A Brief Review on the Development Progress of High-Efficiency Klystrons
Published 2025“…<p dir="ltr">The linear beam ‘O’ type klystrons that feature very high output power (greater than several MW) with an efficiency level of 90% are considered in this study. …”
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562
Role of authentication factors in Fin-tech mobile transaction security
Published 2023“…Although authentication factors provide greater security than a simple static password, financial transactions have potential drawbacks because cybercrime expands the opportunities for fraudsters. …”
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563
Correlation analysis of global sagittal alignment of the spine in cases of low-grade degenerative lumbar spondylolisthesis
Published 2025“…</p><h3>Methods</h3><p dir="ltr">The patients with DS were categorized into three groups based on the adult spinal deformity classification: type I, defined by a SVA of less than 40 mm; type II, with an SVA ranging from 40 mm to 95 mm; and type III, where the SVA is 95 mm or greater. The study compared age and various sagittal parameters among these groups, including thoracic kyphosis (TK), lumbar lordosis (LL), sacral slope (SS), pelvic tilt (PT), and pelvic incidence (PI).…”
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564
Tailored nanofiber composites for a flexible piezoelectric nanogenerator: Poly(vinylidene fluoride) with BaTiO<sub>3</sub>/NiFe<sub>2</sub>O<sub>4</sub>
Published 2024“…<p dir="ltr">Owing to the depletion of fossil fuel energy and the pollution caused by chemical batteries, as well as the growing number of electronic devices and the Internet of Things (IoT), there is a greater demand for power devices that are lightweight, inexpensive, durable, and sustainable. …”
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565
Evaluation of 3D Concrete Printing in the United Arab Emirates
Published 2020Get full text
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566
Evaluation of Workability and Structuration Rate of Locally Developed 3D Printing Concrete Using Conventional Methods
Published 2022“…Therefore, the main objective of this research was to develop 3D printing mixes with different aggregate-to-binder (a/b) ratios (1.2, 1.5, and 1.8) and evaluate it in terms of its fresh printing properties, which include the workability, extrudability, setting time, open time, and buildability. The compressive strengths of cast and printed specimens were also tested to determine the effect of the layering process. …”
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567
Effects of Operating Conditions on Water Absorption Capacity of Superabsorbent Hydrogels
Published 2018Get full text
doctoralThesis -
568
Global, regional, and national mortality among young people aged 10–24 years, 1950–2019: a systematic analysis for the Global Burden of Disease Study 2019
Published 2021“…Since 1950, deaths in this age group decreased by 30·0% in females and 15·3% in males, and sex-based differences in mortality rate have widened in most regions of the world. …”
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569
The effect of a sand surface on physical performance responses of junior male handball players to plyometric training
Published 2020“…Both PS and P increased vertical jump performance (squat jump, p = 0.005; ES = 0.170; counter-movement jump p < 0.001; ES = 0.247). …”
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570
Biochar from food waste: a sustainable amendment to reduce water stress and improve the growth of chickpea plants
Published 2022“…The biochar application also increased key soil nutrients K, Mn, S, and P by a factor of 2–9 times. Application of biochar at 2% and 6% improved water retention from 55 to 77 and 91 mL respectively over the study and, more importantly, more than doubled the biomass yield for the same water application. …”
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571
The effectiveness of divalent cation addition for highly saline activated sludge cultures: Influence of monovalent/divalent ratio and specific cations
Published 2021“…It was particularly important in describing hydrophobicity, sludge volume index (SVI) and specific oxygen uptake rate (SOUR), with r<sub>partial </sub>of 0.879, 0.971 and 0.966 respectively in models that had an r<sup>2</sup><sub>adj</sub> greater than 0.93. Lower M/D also increased biomass concentrations and reduced extracellular polysaccharides, the latter which in turn correlated strongly with many shape and surface charge measures. …”
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572
Can pedestrians safely navigate shared sidewalks with e-scooters and bicycles? A behavioral analysis using surrogate safety measures
Published 2025“…As the speed of micro-mobility vehicle increases, pedestrian initiates avoidance at progressively greater distance and experience heightened perceived risk. …”
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573
Method for simulator and scenario design assessing cognitive aspects of fitness to drive
Published 2015“…Thus, a greater variety of prerequisites regarding the fitness to drive will occur, increasing the demand for assessing fitness to drive. …”
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574
Safety around schools
Published 2015“…Child pedestrians, however, are a vulnerable road user groups, experiencing an increased crash and injury risk relative to older pedestrians, constituting a substantial proportion of all pedestrian fatalities and serious injuries, with children below the age of 10 years of age shown to have four to 11 times greater risk of collision compared to other pedestrians, and they frequently occur around schools. …”
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575
Behavior Of Reinforced Concrete Columns Embedded with PET Bottles Under Concentric Axial Compression
Published 2025Get full text
doctoralThesis -
576
Age–sex differences in the global burden of lower respiratory infections and risk factors, 1990–2019: results from the Global Burden of Disease Study 2019
Published 2022“…Age-standardised incidence and mortality rates were 1·17 times (95% UI 1·16–1·18) and 1·31 times (95% UI 1·23–1·41) greater in males than in females in 2019. …”
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577
The Triple “S” Impact of COVID-19: Nationwide Evidence of the Impact of the Stress Associated With Restrictive Measures on Substance Use, Sleep, and Social Connectedness in Qatar...
Published 2023“…Of tobacco users in our sample, 36% reported increased tobacco use since the start of home confinement, while 41.6% of alcohol users reported decreased alcohol use. Concerning sleep, 46.1% reported an increase in average sleep duration per day (0.77 h mean increase, 95% CI: 0.66-0.88, P<0.001), and a third of participants reported poorer sleep quality. …”
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578
Independent and Combined Effects of Antioxidant Supplementation and Circuit Resistance Training on Selected Adipokines in Postmenopausal Women
Published 2019“…Participants in experimental groups either performed CRT (3 sessions per week with intensity at 55% of one-repetition maximum) or supplemented with Zataria Multiflora (500 mg every day after breakfast with 100 ml of water), or their combination, for 8 weeks. …”
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579
Do Older Adults with Multimorbidity Meet the Recommended Levels of Physical Activity? An Analysis of Scottish Health Survey
Published 2019“…Also, meeting recommended PA decreased with age [OR 0.92 (95% CI 0.90–0.94)] and body mass index [OR 0.93 (95% CI 0.91–0.95]; but increased per additional portion of fruit and vegetables taken [OR 1.19 (95% CI 1.12–1.25)] and with increase in well-being scale score [OR 1.05 (95% CI 1.03 to 1.06)]. …”
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580
Assessing the Electricity Production Capacities of Emerging Markets for the Sustainable Investments
Published 2023“…First, it would be appropriate to provide tax exemptions to solar energy investors so that the costs of these projects can be decreased. Additionally, investments in solar energy technologies need to be further increased.…”