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1841
Microstructural modifications in bitumens rejuvenated by oil from pyrolysis of waste tires
Published 2025-01-01“…The blends were also investigated using atomic force microscopy, and the asphaltenic fraction was assessed via optical microscopy.Results and discussionAll the data consistently indicate that oil addition not only reduces the viscosity of bitumen and restores it to values close to the original unaged bitumen but also changes the intermolecular structure to recover the self-assembly pattern typical of the unaged sample. …”
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1842
The Influence of Heavy Metals and Trace Elements on Comatose Patients with Severe Traumatic Brain Injury in the First Week of Admission
Published 2018-01-01“…Concentration of heavy metals and trace elements in serum was determined by electrochemical atomic absorption spectrometry. Statistical analysis was performed using Statistical software (SPSS) and the cases and controls were compared using the Mann–Whitney U test and Student’s t-test for cadmium according to gender and final evolution. …”
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1843
An Exceptionally Powerful, Radiatively Driven Ultrafast Outflow in the Rapidly Accreting AGN RE J1034+396
Published 2025-01-01“…Modelling of these data confirms the presence of the UFO and constrains its equivalent hydrogen column density, log N _H /(atom cm ^−2 ) = ${21.7}_{-0.2}^{+0.1}$ . The RGS data also reveal at least two warm absorber components with a modest outflow velocity ( $168{0}_{-50}^{+40}$ km s ^−1 ). …”
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1844
Excellent high-temperature strength of (HfZrTiTaNb)C high-entropy carbide diffusion-bonded joint via in-situ alloying of Ni/Nb/Ni composite interlayer
Published 2025-01-01“…Starting from a modified Ni/Nb/Ni composite interlayer with a Nb content of > 64 at%, an alloyed Nb2Ni layer was constructed in situ by accelerating the directional diffusion of Ni atoms from the high-entropy interface into the remaining pure Nb through the Ni‒Nb eutectic liquid. …”
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1845
Adhesion-induced MoS2 layer transfer via in-situ TEM-nanoindentation: Effects of curvature and substrate mediated residual stress
Published 2025-01-01“…To address this, we conducted a comprehensive study investigating the interaction forces originating from the bonding between atoms that govern the adhesion of ultra-thin 2D MoS2. …”
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1846
Isothermal section of the Ni-Mn-Sb ternary system at 773K
Published 2019-01-01“…However the five single phases in the Ni-Mn system and the two binary compounds MnSb and NiSb showed more or less homogeneity ranges formed by substitution of Mn and Sb for Ni atom. The Heusler compound μ (Ni2MnSb) has L21-type ordered structure with space group Fm-3m, a = 0.6017 nm. …”
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1847
Ecotoxicological insight of phytochemicals, toxicological informatics, and heavy metal concentration in Tridax procumbens L. in geothermal areas
Published 2024-01-01“…In addition, quantitative analysis was conducted using gas chromatography–mass spectroscopy to obtain the chromatograms and mass spectra of the metabolite compounds of the ethanolic extract of Tridax procumbens, which were used in computational toxicology analysis using a simplified molecular input system in a predictor server. Atomic absorption spectrometry was conducted to confirm the contents of six heavy metals harmful to medicinal plants.FINDINGS: The results showed that Tridax procumbens from the Ie-Seu'um geothermal area, Aceh, has secondary metabolites such as flavonoids, saponins, steroids, and tannins, with phytol from diterpenoid group having the highest content (32.72 percent). …”
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1848
Metal-Based Antibacterial and Antifungal Agents: Synthesis, Characterization, and In Vitro Biological Evaluation of Co(II), Cu(II), Ni(II), and Zn(II) Complexes with Amino Acid-Der...
Published 2006-01-01“…The magnetic moment data suggested for the complexes to have an octahedral geometry around the central metal atom. The electronic spectral data also supported the same octahedral geometry of the complexes. …”
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1849
Investigation of Mechanical and Tribological Characteristics of Medical Grade Ti6al4v Titanium Alloy in Addition with Corrosion Study for Wire EDM Process
Published 2022-01-01“…The biggest drawback of the material in the biomedical industry, which includes orthopedic applications and dental implants, would be that it releases harmful atoms such as iron, chromium, and nickel into the bodily fluid environment. …”
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1850
Compact 999.6 nm Actively Q-Switched Yb3+:LuAlO for Laser-Induced Breakdown Spectroscopy Laser
Published 2019-06-01“…The reduction in the thermal conductivity of doped laser crystal in comparison with host materials is small in the case of ions with close atomic mass and ionic radii such as for Yb3+ and Lu3+. …”
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1851
Optical Observations of Sputtered Au-nanostructures and Characterizations
Published 2024-03-01“…Au nanofilms were investigated by XRD (X-ray diffraction), UV-Vis (ultraviolet-visible light) diffractometer, and AFM (atomic force microscopy) techniques. The thicknesses of the three films prepared at different sputtering times (10, 15, and 20 seconds) were calculated using the theoretical deposition formula method. …”
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1852
Different post-pancreatectomy glucagon responses to a meal test between surgical approaches
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1853
Graphene-Based Materials for Bone Regeneration in Dentistry: A Systematic Review of In Vitro Applications and Material Comparisons
Published 2025-01-01“…Introduction: Graphene, a two-dimensional arrangement of carbon atoms, has drawn significant interest in medical research due to its unique properties. …”
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1854
Experimental study of polishing systems on surface roughness and color stability of novel bulk-fill composite resins
Published 2025-01-01“…Surface roughness was measured using a profilometer following the polishing procedures, while surface morphology was assessed through atomic force microscopy and scanning electron microscopy. …”
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1855
Infernal instabilities in negative-triangularity plasmas with negative central shear
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1856
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1857
USSD: Unsupervised Sleep Spindle Detector
Published 2025-01-01“…The proposed detector learns prototype SSs of different lengths (called atoms). An unsupervised adaptive threshold method based on the distribution of the automatically detected SS lengths is developed, which allows the adaptation of the USSD algorithm to different datasets in an unsupervised way. …”
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1858
Contribution of individual phospholipase A2 enzymes to the cleavage of oxidized phospholipids in human blood plasma
Published 2025-02-01“…Species containing 1 to 3 oxygen atoms were relatively stable to degradation in plasma, while OxPLs containing > 3 extra oxygens were degraded but at significantly slower rate than truncated species. …”
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1859
Antimicrobial Activity of the Synthesized of Copper Chalcogenide Nanoparticles
Published 2021-01-01“…The sensitivity of copper oxide nanoparticles is attributed to the smaller size of oxygen atom which strongly affects its reactivity and stability and hence very stable and highly reactive compared to sulfur and selenium.…”
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1860
Progress in research on strain glass transition in Ni-Ti based alloys
Published 2025-02-01“…The theoretical and experimental studies in recent years indicated that when doping sufficient amounts of defects (excess solute atoms,foreign alloying dopants, dislocations and nanosized precipitates) into equiatomic Ni-Ti alloys,the resistance from such defects could suppress the first-order martensitic transformation and achieve strain glass transition with the formation of randomly short-range ordered nanodomains. …”
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