2024

最新文章

• Sackler name dropped from prize AI翻译
  作者：Brainard, Jeffrey
• DNA and deli sandwiches On the anniversary of a pivotal patent, a historian probes biotechnologys origin story AI翻译
  作者：Campos, Luis A.
  作者单位：Rice University
• Realization of one-dimensional anyons with arbitrary statistical phase AI翻译
  作者：Kwan, Joyce; Segura, Perrin; Li, Yanfei; Kim, Sooshin; Gorshkov, Alexey V.; Eckardt, Andre; Bakkali-Hassani, Brice; Greiner, Markus
  作者单位：Harvard University; University System of Maryland; University of Maryland College Park; National Institute of Standards & Technology (NIST) - USA; University System of Maryland; University of Maryland College Park; National Institute of Standards & Technology (NIST) - USA; Technical University of Berlin; Pohang University of Science & Technology (POSTECH); Universite PSL; College de France; Ecole Normale Superieure (ENS); Centre National de la Recherche Scientifique (CNRS); Sorbonne Universite
  摘要：Low-dimensional quantum systems can host anyons, particles with exchange statistics that are neither bosonic nor fermionic. However, the physics of anyons in one dimension remains largely unexplored. In this work, we realize Abelian anyons in one dimension with arbitrary exchange statistics using ultracold atoms in an optical lattice, where we engineer the statistical phase through a density-dependent Peierls phase. We explore the dynamical behavior of two anyons undergoing quantum walks and o...
• Droplet-based microprocessors: Soft devices made of nanoliter hydrogel beads use ions for computation AI翻译
  作者：Baret, Jean-Christophe
  作者单位：Universite de Bordeaux; Centre de Recherche Paul Pascal; Centre National de la Recherche Scientifique (CNRS); Institut Universitaire de France
• Destroying 'forever' chemicals AI翻译
  作者：Brainard, Jeffrey
• Footprint evidence for locomotor diversity and shared habitats among early Pleistocene hominins AI翻译
  作者：Hatala, Kevin G.; Roach, Neil T.; Behrensmeyer, Anna K.; Falkingham, Peter L.; Gatesy, Stephen M.; Williams-Hatala, Erin Marie; Feibel, Craig S.; Dalacha, Ibrae; Kirinya, Martin; Linga, Ezekiel; Loki, Richard; Alkoro, Apolo; Longaye, Malmalo; Lonyericho, Emmanuel; Loyapan, Iyole; Nakudo, Nyiber; Nyete, Cyprian; Leakey, Louise N.
  作者单位：Chatham University; Max Planck Society; Harvard University; Smithsonian Institution; Smithsonian National Museum of Natural History; Smithsonian Institution; Smithsonian National Museum of Natural History; Liverpool John Moores University; Brown University; George Washington University; Rutgers University System; Rutgers University New Brunswick; Rutgers University System; Rutgers University New Brunswick; State University of New York (SUNY) System; Stony Brook University; State University of New York (SUNY) System; Stony Brook University
  摘要：For much of the Pliocene and Pleistocene, multiple hominin species coexisted in the same regions of eastern and southern Africa. Due to the limitations of the skeletal fossil record, questions regarding their interspecific interactions remain unanswered. We report the discovery of footprints (similar to 1.5 million years old) from Koobi Fora, Kenya, that provide the first evidence of two different patterns of Pleistocene hominin bipedalism appearing on the same footprint surface. New analyses ...
• Magnetically programmed diffractive robotics AI翻译
  作者：Smart, Conrad L.; Pearson, Tanner G.; Liang, Zexi; Lim, Melody X.; Abdelrahman, Mohamed I.; Monticone, Francesco; Cohen, Itai; Mceuen, Paul L.
  作者单位：Cornell University; Cornell University; Cornell University; Cornell University
  摘要：Microscopic robots with features comparable with the wavelength of light offer new ways of probing the microscopic world and controlling light at the microscale. We introduce a new class of magnetically controlled microscopic robots (microbots) that operate at the visible-light diffraction limit, which we term diffractive robots. We combined nanometer-thick mechanical membranes, programmable nanomagnets, and diffractive optical elements to create untethered microbots small enough to diffract v...
• Children are left behind in Congo's mpox vaccination drive AI翻译
  作者：Cohen, Jon
• Suppression of neurons in circumventricular organs enables months-long survival without water in thirteen-lined ground squirrels AI翻译
  作者：Junkins, Madeleine S.; Feng, Ni Y.; Merriman, Dana K.; Bagriantsev, Sviatoslav N.; Gracheva, Elena O.
  作者单位：Yale University; Yale University; Yale University; Yale University; University of Wisconsin System; University of Wisconsin Oshkosh; Yale University; Wesleyan University
  摘要：Water deprivation is a life-threatening condition that engages a protective physiological response to couple osmolyte retention with potentiation of thirst. This response, typical for most mammals, safeguards against short-term water deprivation but fails in the long term. Thirteen-lined ground squirrels (Ictidomys tridecemlineatus) use the short-term response during summer, whereas during winter, they lack thirst and survive without water for months. In this work, we show that long-term thirs...
• 'Dark proteome' survey reveals thousands of new human genes: Database confirms that overlooked segments of the genome code for a multitude of tiny proteins AI翻译
  作者：Pennisi, Elizabeth