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作者:Li, Qiuyue; Li, Daqing; Levy, Orr; Havlin, Shlomo
作者单位:Bar Ilan University; Beihang University; Civil Aviation University of China; Bar Ilan University
摘要:The movement patterns of animals while searching for food have been studied extensively in recent decades. However, although human search behavior has existed since the beginning of civilization, not much is known about human search patterns, particularly regarding strategies that yield higher efficiency. Although most humans no longer need to gather and hunt in the wild, human searching remains prevalent in modern times. A common example of human searching is performed by taxi drivers looking...
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作者:Zhu, Weiwei; Zhang, Jin; Prabhakar, Pradeep Kumar; Chan, Yen On; Weber, Rachel A.; Shu, Mengjun; Panzade, Ganesh; Cooper, Connor J.; Davidson, Russell B.; Chen, Jin-Gui; Jawdy, Sara S.; Parks, Jerry M.; Urbanowicz, Breeanna R.; Tuskan, Gerald A.; Joshi, Trupti; Dixon, Richard A.; Muchero, Wellington; Barros, Jaime
作者单位:University of Missouri System; University of Missouri Columbia; Zhejiang A&F University; United States Department of Energy (DOE); Oak Ridge National Laboratory; United States Department of Energy (DOE); Oak Ridge National Laboratory; University System of Georgia; University of Georgia; University System of Georgia; University of Georgia; University of Missouri System; University of Missouri Columbia; University of Missouri System; University of Missouri Columbia; University of North Texas System; University of North Texas Denton
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作者:Sharp, Zachary; Wostbrock, Jordan; Gargano, Anthony; Hare, Vincent; Johnson, Jessica; Cerling, Thure; Banerjee, Payal; Peshek, Catherine; Knutson, Cloe; Hartzell, Lauren; Cano, Erick; Stiles, Elena; Bassett, Kelley R.; Holland, Kira; Dowd, Michael H.; Sae-Lim, Jarunetr (nadia); Dominguez, Teresa; Bryant, Dalton; Di Marcantonio, Eduardo; Wainwright, Jensen; Horsford, Maxwell; Botte, Paul; Gagnon, Catherine; Rudall, Paula J.; Ehleringer, James
作者单位:University of New Mexico; Yale University; University of Cape Town; Utah System of Higher Education; University of Utah; Utah System of Higher Education; University of Utah; University of California System; University of California Santa Cruz; University of Washington; University of Washington Seattle; Swedish University of Agricultural Sciences; University of Alberta; University of Hawaii System; University of Hawaii Manoa; University of California System; University of California Irvine; University of Alabama System; University of Alabama Tuscaloosa; Sapienza University Rome; University of Oregon; State University of New York (SUNY) System; University at Albany, SUNY; State University of New York (SUNY) College of Environmental Science & Forestry; Brown University; Royal Botanic Gardens, Kew
摘要:Triple oxygen isotope values of xylem water were measured along the length of smooth horsetail stems (Equisetum laevigatum). Extreme isotope enrichment is observed moving from base to stem tip. delta 18O values range from-8.3%o at the base to 82.6%o at the tip. Delta ' 17O values range from 0 to-1,797 per meg. The delta 18O and Delta ' 17O values are the most extreme measured for any terrestrial material and expand the known range of Delta ' 17O values by fivefold for mass-dependent fractionat...
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作者:Tao, Antai; Fu, Sanyuan; Zhang, Rongjing; Yuan, Junhua
作者单位:Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS
摘要:Surface interactions play a crucial role in shaping the motility patterns and ecological adaptations of swimming bacteria. Previous studies have primarily focused on peritrichous bacteria like Escherichia coli, whose multiple flagella form a bundle during swimming, allowing them to remain trapped at surfaces for extended periods. However, this surface entrapment phenomenon varies significantly among different bacterial species, despite all fitting into the simplified theoretical models of push...
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作者:Wu, Renli; Esposito, Christopher; Evans, James
作者单位:Wuhan University; University of Chicago; University of California System; University of California Los Angeles; University of Chicago; The Santa Fe Institute
摘要:China's emergence as one of the world's top producers of high-quality science raises critical questions about its trajectory toward achieving scientific leadership. Traditional methods for evaluating the power of national scientific ecosystems, however, often overlook the nuances of a country's global influence. In this perspective, we introduce a framework that highlights shifting power dynamics in international scientific collaborations, focusing on whether leadership positions in internatio...
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作者:Deen, Ben; Freiwald, Winrich A.
作者单位:Tulane University; Tulane University; Rockefeller University
摘要:How are systems supporting high-level cognition organized in the human brain? We hypothesize that cognitive processes involved in understanding people and places are implemented by distinct neural systems with parallel anatomical organization. We test this hypothesis using precision neuroimaging of individual human brains on diverse tasks involving perception and cognition in the domains of familiar people, places, and objects. We find that thinking about people and places elicits responses in...
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作者:Seger, Sarah; Ergit, Erdogan; Arya, Sruja; Lega, Brad
作者单位:University of Texas System; University of Texas Southwestern Medical Center
摘要:Serial order memory, a key type of episodic representation, requires the encoding of map-like context information (interitem relationships) to facilitate recall. In rodent models, both spatial and nonspatial order memory depend heavily on the hippocampus. However, in humans, lesional and neurophysiological data also implicate extrahippocampal areas, especially the orbital frontal cortex and medial parietal regions, in these mnemonic abilities. To investigate the neurophysiological mechanisms o...
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作者:Tiwari, Harshit; Sharma, Lekha; Verma, Mahendra K.
作者单位:Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Kanpur; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Kanpur
摘要:Quantifying heat transport in turbulent convection remains a challenge. The two competing models of heat transport predict that the nondimensional heat flux, known as the Nusselt number (Nu), is proportional to Ra1/3 (classical scaling) and Ra1/2 (ultimate-regime scaling), where Ra is the Rayleigh number. Some experiments and simulations report that the Nusselt number transitions from near classical scaling, Ra0.30, to a larger power law when the boundary layer turns turbulent near Ra approxim...
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作者:Zhang, Xichao; Xia, Jing; Zhou, Yan; Zhao, Guoping; Liu, Xiaoxi; Xu, Yongbing; Mochizuki, Masahito
作者单位:Waseda University; Sichuan Normal University; The Chinese University of Hong Kong, Shenzhen; Shinshu University; Nanjing University; Nanjing University; Nanjing University; University of York - UK
摘要:Particle-like chiral magnetic skyrmions can flow in nanotracks and behave like chiral fluids. Using interacting flows to perform logical operations is an important topic in microfluidics and nanofluidics. Here, we report a basic nanofluidic logic computing system based on chiral magnetic skyrmions flowing in parallel pipelines connected by an H-shaped junction. The flow behaviors could be manipulated by adjusting the spin polarization angle, which controls the intrinsic skyrmion Hall angle. We...
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作者:Jarvis, Stephen; Deschenes, Olivier; Jha, Akshaya; Radford, Alan D.