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作者：Bavisotto, Celeste Caruso; Bucchieri, Fabio; Cappello, Francesco
作者单位：University of Palermo
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作者：Graham, Todd R.
作者单位：Vanderbilt University; Vanderbilt University
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作者：Pisegna, Giulia; Saha, Suropriya; Golestanian, Ramin
作者单位：Max Planck Society; University of Oxford
摘要：Phenomenological rules that govern the collective behavior of complex physical systems are powerful tools because they can make concrete predictions about their universality class based on generic considerations, such as symmetries, conservation laws, and dimensionality. While in most cases such considerations are manifestly ingrained in the constituents, novel phenomenology can emerge when composite units associated with emergent symmetries dominate the behavior of the system. We study a gene...
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作者：Yang, Zhenghai; Medvedkov, Iakov A.; Goettl, Shane J.; Nikolayev, Anatoliy A.; Mebel, Alexander M.; Li, Xiaohu; Kaiser, Ralf I.
作者单位：University of Hawaii System; University of Hawaii Manoa; Samara National Research University; State University System of Florida; Florida International University; Chinese Academy of Sciences; Xinjiang Astronomy Observatory, CAS; Chinese Academy of Sciences; Chinese Academy of Sciences
摘要：The cyclopentadiene (C5H6) molecule has emerged as a molecular building block of nonplanar polycyclic aromatic hydrocarbons (PAHs) and carbonaceous nanostructures such as corannulene (C20H10), nanobowls (C40H10), and fullerenes (C60) in deep space. However, the underlying elementary gas- phase processes synthesizing cyclopentadiene from acyclic hydrocarbon precursors have remained elusive. Here, by merging crossed molecular beam experiments with rate coefficient calculations and comprehensive ...
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作者：Ling, Xiaoyu; Guo, Huijuan; Di, Jian; Xie, Liqiang; Zhu-Salzman, Keyan; Ge, Feng; Zhao, Zihua; Sun, Yucheng
作者单位：Chinese Academy of Sciences; Institute of Zoology, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Texas A&M University System; Texas A&M University College Station; Shandong Academy of Agricultural Sciences; China Agricultural University
摘要：DNA repair systems are essential to maintain genome integrity and stability.Some obligate endosymbionts that experience long- term symbiosis with the insect hosts, however, have lost their key components for DNA repair. It is largely unexplored how the bacterial endosymbionts cope with the increased demand for mismatch repairs under heat stresses. Here, we showed that ibpA, a small heat shock protein encoded by Buchnera aphidicola, directly interacted with the cytoskeletal actin to prevent its...
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作者：Choi, Alexander A.; Zhou, Coral Y.; Tabo, Ayana; Heald, Rebecca; Xu, Ke
作者单位：University of California System; University of California Berkeley; University of California System; University of California Berkeley
摘要：The living cell creates a unique internal molecular environment that is challenging to characterize. By combining single- molecule displacement/diffusivity mapping (SMdM) with physiologically active extracts prepared from Xenopus laevis eggs, we sought to elucidate molecular properties of the cytoplasm. Quantification of the diffusion coefficients of 15 diverse proteins in extract showed that, compared to in water, negatively charged proteins diffused similar to 50% slower, while diffusion of ...
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作者：Creel, Roger; Guimond, Julia; Jones, Benjamin M.; Nielsen, David M.; Bristol, Emily; Tweedie, Craig E.; Overduin, Pier Paul
作者单位：Woods Hole Oceanographic Institution; Woods Hole Oceanographic Institution; University of Alaska System; University of Alaska Fairbanks; Max Planck Society; University of Hamburg; University of Texas System; University of Texas Austin; University of Texas System; University of Texas El Paso; University of Texas System; University of Texas El Paso; University of Texas System; University of Texas El Paso; Helmholtz Association; Alfred Wegener Institute, Helmholtz Centre for Polar & Marine Research
摘要：Arctic shorelines are vulnerable to climate change impacts as sea level rises, permafrost thaws, storms intensify, and sea ice thins. Seventy-five years of aerial and satellite observations have established coastal erosion as an increasing Arctic hazard. However, other hazards at play-for instance, the cumulative impact that sea-level rise and permafrost thaw subsidence will have on permafrost shorelines-have received less attention, preventing assessments of these processes' impacts compared ...
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作者：Lin, Yu; Huang, Danji; Wen, Qunlei; Yang, Ruoou; Chen, Bowen; Shen, Yi; Liu, Youwen; Fang, Jiakun; Li, Huiqiao; Zhai, Tianyou
作者单位：Huazhong University of Science & Technology; Huazhong University of Science & Technology; China University of Geosciences; Huazhong University of Science & Technology; Huazhong University of Science & Technology
摘要：The dissolution of active atoms under operating potential will lead to a decline in their oxygen evolution reaction (OER) performance, thus preventing the current highly active catalysts from being practically applicable in industrial water electrolysis. Here, we propose a sequential leaching strategy to utilize the dynamic restructuring and enhance the chemical bond strength for highly active and stable OER. Modeling on nickel- iron sulfides (NiFe-S), we introduced and utilized foreign Mo dop...
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作者：Ravanfar, Raheleh; Sheng, Yuling; Gray, Harry B.; Winkler, Jay R.
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作者：Takaki, Ryota; Thirumalai, D.
作者单位：Max Planck Society; University of Texas System; University of Texas Austin; University of Texas System; University of Texas Austin
摘要：Understanding the biophysical basis of protein aggregation is important in biology because of the potential link to several misfolding diseases. Although experiments have shown that protein aggregates adopt a variety of morphologies, the dynamics of their formation are less well characterized. Here, we introduce a minimal model to explore the dependence of the aggregation dynamics on the structural and sequence features of the monomers. Using simulations, we demonstrate that sequence complexit...
