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481
Using Event History Analysis in the Social Sciences
Published 2019“…Since the variable of interest is how much time passes between two consecutive logins for each student, I use a statistical technique called event-history analysis or survival analysis. …”
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482
Kinetics and mechanism of H2O2 decomposition by Cu(II)-, Co(II)-, and Fe(III)-Amine complexes on the surface of Silica-Alumina (25% Al2O3)
Published 1994“…The rate of reaction was directly proportional to the [complex], [H2O2], and [H]?1. A mechanism describing the decomposition process is proposed.…”
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483
Changes in physical activity and sedentary behavior amid confinement: The bksq-covid-19 project
Published 2020“…Among the participants who were regularly involved in PA, the majority (41.8-42.2%) of the participants reported a "decrease" (p<0.05) in walking, jogging, and sports while the majority (46.3-53.1%) reported a "no change" (p<0.05) in swimming, cycling, and weight lifting. …”
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484
Changes In Biomass Gain, Protein Content And Hormonal Levels In Wheat Kernels In Response To Soil Drench With Sodium Salicylate
Published 1992“…Sodium salicylate increased significantly the ABA content in grains compared to control. A significant decrease in auxins and gibberellins in grains was noticed in sodium salicylate- treated plants, except with 800mg/l which increased gibbereilins at day 80. …”
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485
Chemical characterization and therapeutic properties of Achillea biebersteinii leaf aqueous extract synthesized copper nanoparticles against methamphetamine-induced cell death in P...
Published 2020“…The nanoparticles were analyzed by Fourier-transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, field emission scanning electron microscopy, and ultraviolet–visible spectroscopy. A 2,2-Diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging experiment was carried out to assess the antioxidant properties of Cu(NO3)2, A. biebersteinii, and CuNPs. …”
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486
Development of value-added polyethylene grades with extended service lifetime: Weathering resistant flame retarded materials for outdoor applications
Published 2021“…Two low-density (LDPE) and one linear low-density (LLDPE) polyethylene grades were modified via melt compounding with an additive system comprising: (a) a nitrogen-phosphorous intumescent system for flame retardance and (b) a hindered amine light stabilizer and a benzophenone-type UV absorber for UV/heat stabilization, at a total loading of 30-35 wt%. …”
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487
Flow and Fracture Behaviour of Tungsten Fiber Reinforced Superalloy Composites-Effect Of Specimen Geometry
Published 1989“…I. niaxial compression forging was performed at a constant true strain rate of 3x10^ S , with temperature as parameter. …”
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488
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490
Energy depletion and opportunistic microbial colonisation in white syndrome lesions from corals across the Indo-Pacific
Published 2020“…Total lipid levels varied significantly among locations, though a consistent stepwise decrease from healthy tissues from healthy colonies (HH) to healthy tissue on WS-diseased colonies (HD; i.e. preceding the lesion boundary) to diseased tissue on diseased colonies (DD; i.e. lesion front) was observed, demonstrating a reduction in energy reserves. …”
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491
OIL PRICE SHOCKS AND STOCK PRICE INFORMATIVENESS: EVIDENCE FROM GCC FIRMS
Published 2024“…This paper adds to the literature that studies the market reactions to oil price shocks by examining the impact of oil prices volatility on stock price informativeness. Using a sample of firms from the Gulf Corporation Council GCC members (i.e., United Arab Emirates, Kingdom of Bahrain, Kingdom of Saudi Arabia, Sultanate of Oman, State of Qatar, and State of Kuwait) along the period from 2006 to 2021, we document a negative association between oil price uncertainty and the information content of stock price. …”
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492
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493
valuation of salt tolerance in selected Qatari halophytes at the two initial growth stages
Published 2016“…In general the seed germination experiments showed a decrease in the rate of germination as the salt concentration increased. …”
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494
Aluminum nitride (AlN) reinforced electrodeposited Ni-B nanocomposite coatings
Published 2020“…The potentiodynamic analysis exhibited that the protection efficiency (PE%) of Ni–B coating is ~20%, which increased to ~53% and ~73% by addition of AlN nanoparticles of 0.6 and 1.2 g L−1, respectively. The corrosion resistance could be credited to the presence of inactive and insulating AlN nanoparticles that filled the existing defects in Ni–B matrix and subsequently decreased the active area exposed to the corrosive electrolyte (3.5 wt.% NaCl).…”
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495
Does the Mediterranean Diet Have Any Effect on Lipid Profile, Central Obesity and Liver Enzymes in Non-Alcoholic Fatty Liver Disease (NAFLD) Subjects? A Systematic Review and Meta-...
Published 2023“…RCTs with NAFLD subjects were included in this systematic review with a mean intervention duration from 6 weeks to 1 year, and different intervention strategies, mainly including energy restriction MD (normal or low glycaemic index), low-fat MD with increased monounsaturated and polyunsaturated fatty acids, and increased exercise expenditure. …”
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496
The effect of chitosan's addition to resorcinol/formaldehyde xerogels on the characteristics of resultant activated carbon
Published 2019“…The total pore volume decreased from 1.040 to 0.238 cm3/g and the total pore surface area decreased from 912.3 to 554.4 m2/g. …”
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497
Antiferromagnetism in EuPdGe3
Published 2014“…EuPdGe3 crystallizes in the BaNiSn3-type tetragonal structure (space group I4mm) with the lattice constants a=4.4457(1)Å and c=10.1703(2)Å. …”
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498
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INVESTIGATING THE IMPACT AND MECHANICAL PROPERTIES OF RECLAIMED RUBBER AND SAWDUST COMPOSITE
Published 2022“…Reclaimed rubber composites can offer promising mechanical properties and a new way of incorporating waste materials for sustainable recycling. …”
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500