20期

最新文章

• Landscape fragmentation overturns classical metapopulation thinking AI翻译
  作者：Tao, Yun; Hastings, Alan; Lafferty, Kevin D.; Hanski, Ilkka; Ovaskainen, Otso
  作者单位：University of California System; University of California Santa Barbara; University System of Georgia; University of Georgia; University of California System; University of California Davis; The Santa Fe Institute; United States Department of the Interior; United States Geological Survey; University of California System; University of California Santa Barbara; University of Helsinki; University of Jyvaskyla; Norwegian University of Science & Technology (NTNU)
  摘要：Habitat loss and isolation caused by landscape fragmentation represent a growing threat to global biodiversity. Existing theory suggests that the process will lead to a decline in metapopulation viability. However, since most metapopulation models are restricted to simple networks of discrete habitat patches, the effects of real landscape fragmentation, particularly in stochastic environments, are not well understood. To close this major gap in ecological theory, we developed a spatially expli...
• No evidence for methanotrophic growth of diverse marine methanogens AI翻译
  作者：Chadwick, Grayson L.; Nayak, Dipti D.; Rother, Michael; Metcalf, William W.
  作者单位：University of California System; University of California Berkeley; Technische Universitat Dresden; University of Illinois System; University of Illinois Urbana-Champaign
• Energetic cost of biosynthesis is a missing link between growth and longevity in mammals AI翻译
  作者：Hou, Chen; Kempes, Christopher
  作者单位：University of Missouri System; Missouri University of Science & Technology
  摘要：The comparative studies of aging have established a negative correlation between Gompertz postnatal growth constant and maximum lifespan across mammalian species, but the underlying physiological mechanism remains unclear. This study shows that the Gompertz growth constant can be decomposed into two energetic components, mass - specific metabolic rate and the energetic cost of biosynthesis, and that after controlling the former as a confounder, the negative correlation between growth constant ...
• A mechanistic model of gossip, reputations, and cooperation AI翻译
  作者：Kawakatsu, Mari; Kessinger, Taylor A.; Plotkin, Joshua B.
  作者单位：University of Pennsylvania; University of Pennsylvania
  摘要：Social reputations facilitate cooperation: those who help others gain a good reputation, making them more likely to receive help themselves. But when people hold private views of one another, this cycle of indirect reciprocity breaks down, as disagreements lead to the perception of unjustified behavior that ultimately undermines cooperation. Theoretical studies often assume population-wide agreement about reputations, invoking rapid gossip as an endogenous mechanism for reaching consensus. How...
• DNA polymerase delta governs parental histone transfer to DNA replication lagging strand AI翻译
  作者：Tian, Congcong; Zhang, Qin; Jia, Jing; Zhou, Jiaqi; Zhang, Ziwei; Karri, Srinivasu; Jiang, Jiuhang; Dickinson, Quinn; Yao, Yuan; Tang, Xiaorong; Huang, Yuxin; Guo, Ting; He, Ziwei; Liu, Zheng; Gao, Yuan; Yang, Xinran; Wu, Yuchun; Chan, Kui Ming; Zhang, Daoqin; Han, Junhong; Yu, Chuanhe; Gan, Haiyun
  作者单位：Chinese Academy of Sciences; Shenzhen Institute of Advanced Technology, CAS; Sichuan University; Sichuan University; Sichuan University; University of Minnesota System; South China Agricultural University; University of Macau; Henan University; Henan University; The Chinese University of Hong Kong, Shenzhen; Cold Spring Harbor Laboratory; Qingdao University; City University of Hong Kong; Shenzhen Research Institute, City University of Hong Kong; City University of Hong Kong; Stanford University
  摘要：Chromatin replication is intricately intertwined with the recycling of parental histones to the newly duplicated DNA strands for faithful genetic and epigenetic inheritance. The transfer of parental histones occurs through two distinct pathways: leading strand deposition, mediated by the DNA polymerase epsilon subunits Dpb3/Dpb4, and lagging strand deposition, facilitated by the MCM helicase subunit Mcm2. However, the mechanism of the facilitation of Mcm2 transferring parental histones to the ...
• A distinct, high- affinity, alkaline phosphatase facilitates occupation of P- depleted environments by marine picocyanobacteria AI翻译
  作者：Torcello-Requena, Alberto; Murphy, Andrew R. J.; Lidbury, Ian D. E. A.; Pitt, Frances D.; Stark, Richard; Millard, Andrew D.; Puxty, Richard J.; Chen, Yin; Scanlan, David J.
  作者单位：University of Warwick; University of Sheffield; University of Leicester; University of Birmingham
  摘要：Marine picocyanobacteria of the genera Prochlorococcus and Synechococcus , the two most abundant phototrophs on Earth, thrive in oligotrophic oceanic regions. While it is well known that specific lineages are exquisitely adapted to prevailing in situ light and temperature regimes, much less is known of the molecular machinery required to facilitate occupancy of these low - nutrient environments. Here, we describe a hitherto unknown alkaline phosphatase, Psip1, that has a substantially higher a...
• The potential importance of the built- environment microbiome and its impact on human health AI翻译
  作者：Bosch, Thomas C. G.; Wigley, Mark; Colomina, Beatriz; Bohannan, Brendan; Meggers, Forrest; Amato, Katherine R.; Azad, Meghan B.; Blaser, Martin J.; Brown, Kate; Dominguez-Bello, Maria Gloria; Ehrlich, Stanislav Dusko; Elinav, Eran; Finlay, B. Brett; Geddie, Kate; Geva-Zatorsky, Naama; Giles-Vernick, Tamara; Gros, Philippe; Guillemin, Karen; Haraoui, Louis Patrick; Johnson, Elizabeth; Keck, Frederic; Lorimer, Jamie; McFall-Ngai, Margaret J.; Nichter, Mark; Pettersson, Sven; Poinar, Hendrik; Rees, Tobias; Tropini, Carolina; Undurraga, Eduardo A.; Zhao, Liping; Melby, Melissa K.
  作者单位：University of Kiel; Canadian Institute for Advanced Research (CIFAR); Columbia University; Princeton University; University of Oregon; Princeton University; Northwestern University; University of Manitoba; University of Manitoba; University of Manitoba; Children's Hospital Research Institute of Manitoba; Rutgers University System; Rutgers University New Brunswick; Massachusetts Institute of Technology (MIT); Rutgers University System; Rutgers University New Brunswick; Rutgers University System; Rutgers University New Brunswick; University of London; University College London; Weizmann Institute of Science; Helmholtz Association; German Cancer Research Center (DKFZ); University of British Columbia; Canadian Institute for Advanced Research (CIFAR); Technion Israel Institute of Technology; Technion Israel Institute of Technology; Pasteur Network; Universite Paris Cite; Institut Pasteur Paris; McGill University; University of Oregon; University of Sherbrooke; Cornell University; Universite PSL; College de France; University of Oxford; California Institute of Technology; University of Arizona; Nanyang Technological University; McMaster University; University of British Columbia; Pontificia Universidad Catolica de Chile; University of Delaware
  摘要：There is increasing evidence that interactions between microbes and their hosts not only play a role in determining health and disease but also in emotions, thought, and behavior. Built environments greatly influence microbiome exposures because of their built - in highly specific microbiomes coproduced with myriad metaorganisms including humans, pets, plants, rodents, and insects. Seemingly static built structures host complex ecologies of microorganisms that are only starting to be mapped. T...
• Liquid-liquid transition and ice crystallization in a machine- learned coarse- grained water model AI翻译
  作者：Dhabal, Debdas; Kumar, Rajat; Molinero, Valeria
  作者单位：Utah System of Higher Education; University of Utah; Indian Institute of Technology System (IIT System); Indian Institute of Technology (IIT) - Guwahati
  摘要：Mounting experimental evidence supports the existence of a liquid-liquid transition (LLT) in high - pressure supercooled water. However, fast crystallization of supercooled water has impeded identification of the LLT line T LL ( p ) in experiments. While the most accurate all - atom (AA) water models display a LLT, their computational cost limits investigations of its interplay with ice formation. Coarse - grained (CG) models provide over 100 - fold computational efficiency gain over AA models...
• Temporal dynamics of coordinated online behavior: Stability, archetypes, and influence AI翻译
  作者：Tardelli, Serena; Nizzoli, Leonardo; Tesconi, Maurizio; Conti, Mauro; Nakov, Preslav; Martino, Giovanni Da San; Cresci, Stefano
  作者单位：Consiglio Nazionale delle Ricerche (CNR); University of Padua; Mohamed bin Zayed University of Artificial Intelligence MBZUAI
  摘要：Large-scale online campaigns, malicious or otherwise, require a significant degree of coordination among participants, which sparked interest in the study of coordinated online behavior . State-of-the-art methods for detecting coordinated behavior perform static analyses, disregarding the temporal dynamics of coordination. Here, we carry out a dynamic analysis of coordinated behavior. To reach our goal, we build a multiplex temporal network and we perform dynamic community detection to identif...