The small GTPase MRAS is a broken switch by Gabriela Bernal Astrain, Regina Strakhova, Chang Hwa Jo, Emma Teszner, Ryan C. Killoran, Matthew J. Smith

“…Synthetic activating mutations widely used to study the function of MRAS in a presumed GTP-loaded state do not increase exchange, but instead drive effector binding due to sampling of an activated conformation in the GDP-loaded state. This includes nucleation of the SHOC2-PP1Cα holophosphatase complex. …”
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Chill sensitiveness and thermal analysis parameters relationship in hypo-eutectic, Ca and Ca-La inoculated commercial grey cast irons by Stefan E., Chisamera M., Riposan I.

“…Previous experiments showed a specific distribution of Al, La, and Ca on the section of complex (Mn,X)S compounds, found as major nucleation sites for graphite flakes in low-S cast irons (< 0.03%S), and a possible contribution of La to improve their capacity to nucleate graphite, avoiding carbides formation. …”
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Crack initiation life in notched Ti-6Al-4V titanium bars under uniaxial and multiaxial fatigue: synthesis based on the averaged strain energy density approach by Giovanni Meneghetti, Alberto Campagnolo, Filippo Berto, Keisuke Tanaka

“…To investigate the notch effect on the fatigue strength, pure bending, pure torsion and multiaxial bending-torsion fatigue tests have been carried out on specimens characterized by two different root radii, namely 0.1 and 4 mm. Crack nucleation and subsequent propagation have been accurately monitored by using the direct current potential drop (DCPD) technique. …”
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Grain refinement and improved mechanical properties of as-cast Mg-3Gd alloy by Zr addition by Mohammadreza Maghzi, Hamed Mirzadeh, Reza Mahmudi

“…This was attributed to the inoculation effect of α–Zr particles as heterogeneous nucleation sites and high growth restriction factor (GRF) of solute Zr. …”
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Kinetics of oil palm empty fruit bunch fiber pyrolysis by Bashar Abdullahi Hadi, Abdullahi Muhammad Sokoto, Aminu Bayawa Muhammad, Yahaya Alhassan, Chika Muhammad

“…The reaction is diffusion regulated by nucleation and nuclei growth models, according to the Zhuravlev-Lasokin-Tempelman model, which produced the highest regression value and the best acceptable fit. …”
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Microstructure and Tensile Property Tailoring of Al–5Mg (wt%) Alloy Combined with Continuous Rheo-Extrusion and Sc Modification by Bowei Yang, Wenyue Liu, Xin Liu, Dalong Yang, Minqiang Gao

“…The primary Al₃Sc-phase particles formed during solidification behaved as heterogeneous nucleation sites for the α-Al matrix, while the nanoscale Al₃Sc-phase particles achieved during CRE enhanced the driving force of continuous dynamic recrystallization and the Zener drag force. …”
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Rare Earth Metal-Based Intermetallics Formation in Al–Cu–Mg and Al–Si–Cu–Mg Alloys: A Metallographic Study by A. M. Samuel, E. M. Elgallad, M. G. Mahmoud, H. W. Doty, S. Valtierra, F. H. Samuel

“…Judging by the morphology of the gray phase, it is assumed that this phase is precipitated in the liquid state and acts as a nucleation site for the white phase. Lanthanum and Ce can substitute each other.…”
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A physically-based constitutive model considering mixed dynamic recrystallization for a near-α titanium alloy during hot deformation by Jie Zhao, Yingming Tu, Binjun Zhou, Kehuan Wang, Gang Liu

“…Then a physically-based constitutive model was developed, considering subgrain rotation, recrystallization nucleation, recrystallization grain growth, recrystallization grain transformation into deformation structure and microvoids evolution. …”
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Study on the enhancement of thixotropic properties of steel slag-based digital concrete by metakaolin by Lingli Zhu, Zhenkun Zhao, Yu Zhao, Yun Xiang, Xuemao Guan

“…It was known from the microscopic tests that metakaolin provided nucleation sites for the slurry, increased the hydration reaction rate of the slurry, reduced the internal pores of the slurry, made the flocculation structure denser, and simultaneously promoted the formation of ettringite. …”
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A Study of the Creep-Fatigue Damage Mechanism of a P92 Welded Joint Using Nanoindentation Characterization by Zhangmin Jin, Zhihui Cai, Xuecheng Gu, Zhiqiang Wang, Yiwen Han, Ting Yu, Yuxuan Song, Zengliang Gao, Zhongrui Zheng

“…., enhanced grain size and nucleation of creep voids, was established, and the damage mechanism was discussed.…”
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Effects of micron-sized Cr3Si particles on microstructure and properties of CuNiSiCr alloy by Zhongyue Yang, Yake Wu, Liang Zhou, Bai Li, Feng Jiang, Junyong Lu

“…These deformation heterogeneities increased the number of nucleation sites and resulted in more significant grain refinement in the CuNiSiCr alloy upon recrystallization. …”
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Tracking solid electrolyte interphase dynamics using operando fibre-optic infra-red spectroscopy and multivariate curve regression by Cédric Leau, Yu Wang, Charlotte Gervillié-Mouravieff, Steven T Boles, Xiang-Hua Zhang, Simon Coudray, Catherine Boussard-Plédel, Jean-Marie Tarascon

“…While the solid electrolyte interphase (SEI) is known to govern these performance characteristics, its dynamic nature makes understanding its nucleation, growth, and composition an ambitious, yet elusive aspiration. …”
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Effect of Solidification Rate and Rare Earth Metal Addition on the Microstructural Characteristics and Porosity Formation in A356 Alloy by M. G. Mahmoud, A. M. Samuel, H. W. Doty, S. Valtierra, F. H. Samuel

“…The results showed that, in the absence of Sr, addition of La and Ce leads to an increase in the nucleation temperature of the α-Al dendritic network with a decrease in the temperature of the eutectic Si precipitation, resulting in increasing the freezing range. …”
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Enhancement of antibacterial activity through phyto‐fabrication of silver nanoparticles with Ficus thonningii aqueous extracts by Dickens A. Ondigo, Were L. L. Munyendo, Dickson Andala, Apollo O. Maima, Josephat M. Mosweta, Kevin W. Odhiambo

“…The sufficient redox capabilities of Ficus thonningii phytochemicals for Ag+ reduction to Ag0 and ultimately aggregation to nucleation are exploited for the first time in attempting to enhance the antibacterial activity. …”
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Numerical Investigation of Hydraulic Fracture Propagation Morphology in the Conglomerate Reservoir by Zehao Xu, Xiangjun Liu, Lixi Liang

“…Based on the global pore-pressure cohesive zone element (GPPCZ) model method, a two-dimensional (2D) fracture propagation model with flow-stress-damage (FSD) coupling was established to investigate HF nucleation, propagation, and coalescence in conglomerate reservoirs. …”
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The influence of iron impurities on the compression behaviour of Al-2.24Mg-2.09Li alloy by Kozina F., Zovko-Brodarac Z., Petrič M., Penko A.

“…The coarse morphology of Al3Fe particles and location at the grain boundaries of αAl grains contributed to low energy intergranular fracture. The fracture nucleation and propagation across the grain boundaries resulted in lower strength values.…”
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Gravitational waves and dark matter in the gauged two-Higgs doublet model by Michael J. Ramsey-Musolf, Van Que Tran, Tzu-Chiang Yuan

“…Furthermore, satisfying the nucleation condition necessitates the masses of scalar bosons in the hidden sector to align with the electroweak scale, potentially probed by future collider detectors. …”
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Microstructure and mechanical properties of A7N01 aluminum alloy weld joints filled with ER5356 and ER5087 weld wires by Xie H., Hu L., Ma Q.-H., Meng W., Yin X.-H.

“…The high strength and the good elongation of 7N01/5087 welded joint were mainly attributed to the microstructure refinement in the weld zone through adding Zr element to promote the nucleation of Al grains around the Al3Zr sites.…”
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Improving radiation tolerance with room temperature annealing of pre-existing defects by Md Hafijur Rahman, Felix Cooper, Miguel L. Crespillo, Khalid Hattar, Aman Haque, Fan Ren, Stephen Pearton, Douglas Wolfe

“…Pre-existing defects in semiconductor devices can act as nucleation sites for radiation damage. Defects generated from mismatches in lattice constant, stiffness and thermal expansion are difficult to eliminate with thermal annealing. …”
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Kinetics of carbothermic reduction of synthetic chromite by Wang Y., Wang L., Yu J., Chou K.C.

“…Kinetics analysis showed that the first stage was controlled by nucleation with an apparent activation energy of 120kJ/mol, while the chromium reduction was controlled by crystallochemical transformation with an apparent activation energy of 288kJ/mol.…”
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