6749期

最新文章

• Microporous polyimine membranes for efficient separation of liquid hydrocarbon mixtures AI翻译
  作者：Lee, Tae Hoon; Balcik, Marcel; Ali, Zain; Joo, Taigyu; Rivera, Matthew P.; Pinnau, Ingo; Smith, Zachary P.
  作者单位：Massachusetts Institute of Technology (MIT); Sungkyunkwan University (SKKU); King Abdullah University of Science & Technology
  摘要：Interfacial polymerization has been an industrial standard for preparing desalination membranes. Extending the same concept to molecular separation of organic solvents would be a key enabler for the decarbonization of the chemical and petrochemical industries through energy-efficient crude or biocrude oil fractionation. Here, we report a molecular engineering approach based on acid-catalyzed interfacial polymerization for efficient hydrocarbon separation. The design strategies include (i) chan...
• CTC1-STN1-TEN1 controls DNA break repair pathway choice via DNA end resection blockade AI翻译
  作者：Rogers, Cody M.; Kaur, Hardeep; Swift, Michelle L.; Raina, Vivek B.; Zhou, Shuo; Kawale, Ajinkya S.; Syed, Shahrez; Kelly, Korilynn G.; Jasper, Angela M.; Salunkhe, Sameer; Kwon, Youngho; Wang, Jeffrey; Shabestari, Aida Badamchi; Daley, James M.; Sacks, Adam; Gaczynska, Maria E.; Osmulski, Pawel A.; Rawal, Yashpal; Tomimatsu, Nozomi; Gayther, Simon A.; Lawrenson, Kate; Burma, Sandeep; Wasmuth, Elizabeth V.; Olsen, Shaun K.; Zhao, Weixing; Hromas, Robert; Libich, David S.; Mazin, Alexander V.; Zhou, Daohong; Greene, Eric C.; Chowdhury, Dipanjan; Sung, Patrick
  作者单位：University of Texas System; University of Texas at San Antonio; University of Texas System; University of Texas at San Antonio; Harvard University; Harvard Medical School; Harvard University Medical Affiliates; Dana-Farber Cancer Institute; NewYork-Presbyterian Hospital; Columbia University; University of Texas System; University of Texas at San Antonio; University of Texas System; University of Texas at San Antonio; University of Texas System; University of Texas at San Antonio; University of Texas System; University of Texas at San Antonio; Harvard University; Harvard University Medical Affiliates; Massachusetts General Hospital; University of Michigan System; University of Michigan
  摘要：Antagonistic activities of the 53BP1 axis and the tumor suppressor BRCA1-BARD1 determine whether DNA double-strand breaks (DSBs) are repaired by end joining or homologous recombination. We show that the CTC1-STN1-TEN1 (CST) complex, a central 53BP1 axis component, suppresses DNA end resection by EXO1 and the BLM-DNA2 helicase-nuclease complex but acts by distinct mechanisms in restricting these entities. Whereas BRCA1-BARD1 alleviates the CST-imposed EXO1 blockade, it has little effect on BLM-...
• A strange fascination AI翻译
  作者：Savitsky, Zack
• Functional biogeography of marine microbial heterotrophs AI翻译
  作者：Zakem, Emily J.; McNichol, Jesse; Weissman, J. L.; Raut, Yubin; Xu, Liang; Halewood, Elisa R.; Carlson, Craig A.; Dutkiewicz, Stephanie; Fuhrman, Jed A.; Levine, Naomi M.
  作者单位：Carnegie Institution for Science; Saint Francis Xavier University - Canada; University of Southern California; State University of New York (SUNY) System; Stony Brook University; State University of New York (SUNY) System; Stony Brook University; City University of New York (CUNY) System; Massachusetts Institute of Technology (MIT); University of California System; University of California Santa Barbara; Massachusetts Institute of Technology (MIT)
  摘要：Heterotrophic bacteria and archaea (heteroprokaryotes) drive global carbon cycling, but how to quantitatively organize their functional complexity remains unclear. We generated a global-scale understanding of marine heteroprokaryotic functional biogeography by synthesizing genetic sequencing data with a mechanistic marine ecosystem model. We incorporated heteroprokaryotic diversity into the trait-based model along two axes: substrate lability and growth strategy. Using genetic sequences along ...
• Cultivating the side hustle AI翻译
  作者：Nonterah, Gertrude
• Rewriting the rules of cell division: Microtubules get help from actin filaments during mitosis AI翻译
  作者：Bement, William
  作者单位：Montclair State University; University of Western Australia; University of Western Australia; Institute of Marine Research - Norway
• 30-day forecasts? Weather prediction has room to run AI翻译
  作者：Voosen, Paul
• A pathogen's Bronze Age spread challenges longstanding link between disease and early agriculture AI翻译
  作者：Curry, Andrew
• The helion charge radius from laser spectroscopy of muonic helium-3 ions AI翻译
  作者：Schuhmann, Karsten; Fernandes, Luis M. P.; Nez, Francois; Abdou Ahmed, Marwan; Amaro, Fernando D.; Amaro, Pedro; Biraben, Francois; Chen, Tzu-Ling; Covita, Daniel S.; Dax, Andreas J.; Diepold, Marc; Franke, Beatrice; Galtier, Sandrine; Gouvea, Andrea L.; Goetzfried, Johannes; Graf, Thomas; Haensch, Theodor W.; Hildebrandt, Malte; Indelicato, Paul; Julien, Lucile; Kirch, Klaus; Knecht, Andreas; Kottmann, Franz; Krauth, Julian J.; Liu, Yi-Wei; Machado, Jorge; Monteiro, Cristina M. B.; Mulhauser, Francoise; Naar, Boris; Nebel, Tobias; dos Santos, Joaquim M. F.; Santos, Jose Paulo; Szabo, Csilla I.; Taqqu, David; Veloso, Joao F. C. A.; Voss, Andreas; Weichelt, Birgit; Antognini, Aldo; Pohl, Randolf; CREMA Collaboration
  作者单位：Swiss Federal Institutes of Technology Domain; ETH Zurich; Universidade de Coimbra; Universite PSL; College de France; Ecole Normale Superieure (ENS); Centre National de la Recherche Scientifique (CNRS); Sorbonne Universite; University of Stuttgart; Universidade Nova de Lisboa; National Tsing Hua University; Universidade de Aveiro; Max Planck Society; University of Munich; Johannes Gutenberg University of Mainz
  摘要：Hydrogen-like light muonic ions, in which one negative muon replaces all of the electrons, are extremely sensitive probes of nuclear structure. Using pulsed laser spectroscopy, we have measured three 2S-2P transitions in the muonic helium-3 (mu He-3(+)) ion, an ion formed by a negative muon and bare helium-3 nucleus. This allowed us to extract the Lamb shift, the 2P fine structure splitting, and the 2S-hyperfine splitting in mu He-3(+). Comparing these measurements with theory, we determined t...
• The emergence and demise of giant sloths AI翻译
  作者：Boscaini, Alberto; Casali, Daniel M.; Toledo, Nestor; Cantalapiedra, Juan L.; Bargo, M. Susana; De Iuliis, Gerardo; Gaudin, Timothy J.; Langer, Max C.; Narducci, Rachel; Pujos, Francois; Soto, Eduardo M.; Vizcaino, Sergio F.; Soto, Ignacio M.
  作者单位：Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); University of Buenos Aires; Universidade de Sao Paulo; National University of La Plata; Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Museo Nacional de Ciencias Naturales (MNCN); Universidad de Alcala; Leibniz Institut fur Evolutions und Biodiversitatsforschung; Comision de Investigaciones Cientificas; University of Toronto; Royal Ontario Museum; University of Tennessee System; University of Tennessee at Chattanooga
  摘要：The emergence of multi-tonne herbivores is a recurrent aspect of the Cenozoic mammalian radiation. Several of these giants have vanished within the past 130,000 years, but the timing and macroevolutionary drivers behind this pattern of rise and collapse remain unclear for some megaherbivore lineages. Using trait modeling that combines total-evidence evolutionary trees and a comprehensive size dataset, we show that sloth body mass evolved with major lifestyle shifts and that most terrestrial li...