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Last glacial atmospheric CO(2)decline due to widespread Pacific deep-water expansion 期刊论文
NATURE GEOSCIENCE, 2020
作者:  Yu, J.;  Menviel, L.;  Jin, Z. D.;  Anderson, R. F.;  Jian, Z.;  Piotrowski, A. M.;  Ma, X.;  Rohling, E. J.;  Zhang, F.;  Marino, G.;  McManus, J. F.
收藏  |  浏览/下载:12/0  |  提交时间:2020/08/09
A remnant planetary core in the hot-Neptune desert 期刊论文
NATURE, 2020, 583 (7814) : 39-+
作者:  David J. Armstrong;  Thé;  o A. Lopez;  Vardan Adibekyan;  Richard A. Booth;  Edward M. Bryant;  Karen A. Collins;  Magali Deleuil;  Alexandre Emsenhuber;  Chelsea X. Huang;  George W. King;  Jorge Lillo-Box;  Jack J. Lissauer;  Elisabeth Matthews;  Olivier Mousis;  Louise D. Nielsen;  Hugh Osborn;  Jon Otegi;  Nuno C. Santos;  ;  rgio G. Sousa;  Keivan G. Stassun;  Dimitri Veras;  Carl Ziegler;  Jack S. Acton;  Jose M. Almenara;  David R. Anderson;  David Barrado;  Susana C. C. Barros;  Daniel Bayliss;  Claudia Belardi;  Francois Bouchy;  ;  sar Briceñ;  o;  Matteo Brogi;  David J. A. Brown;  Matthew R. Burleigh;  Sarah L. Casewell;  Alexander Chaushev;  David R. Ciardi;  Kevin I. Collins;  Knicole D. Coló;  n;  Benjamin F. Cooke;  Ian J. M. Crossfield;  Rodrigo F. Dí;  az;  Elisa Delgado Mena;  Olivier D. S. Demangeon;  Caroline Dorn;  Xavier Dumusque;  Philipp Eigmü;  ller;  Michael Fausnaugh;  Pedro Figueira;  Tianjun Gan;  Siddharth Gandhi;  Samuel Gill;  Erica J. Gonzales;  Michael R. Goad;  Maximilian N. Gü;  nther;  Ravit Helled;  Saeed Hojjatpanah;  Steve B. Howell;  James Jackman;  James S. Jenkins;  Jon M. Jenkins;  Eric L. N. Jensen;  Grant M. Kennedy;  David W. Latham;  Nicholas Law;  Monika Lendl;  Michael Lozovsky;  Andrew W. Mann;  Maximiliano Moyano;  James McCormac;  Farzana Meru;  Christoph Mordasini;  Ares Osborn;  Don Pollacco;  Didier Queloz;  Liam Raynard;  George R. Ricker;  Pamela Rowden;  Alexandre Santerne;  Joshua E. Schlieder;  Sara Seager;  Lizhou Sha;  Thiam-Guan Tan;  Rosanna H. Tilbrook;  Eric Ting;  Sté;  phane Udry;  Roland Vanderspek;  Christopher A. Watson;  Richard G. West;  Paul A. Wilson;  Joshua N. Winn;  Peter Wheatley;  Jesus Noel Villasenor;  Jose I. Vines;  Zhuchang Zhan
收藏  |  浏览/下载:18/0  |  提交时间:2020/07/06

The interiors of giant planets remain poorly understood. Even for the planets in the Solar System, difficulties in observation lead to large uncertainties in the properties of planetary cores. Exoplanets that have undergone rare evolutionary processes provide a route to understanding planetary interiors. Planets found in and near the typically barren hot-Neptune '  desert'  (1,2)(a region in mass-radius space that contains few planets) have proved to be particularly valuable in this regard. These planets include HD149026b(3), which is thought to have an unusually massive core, and recent discoveries such as LTT9779b(4)and NGTS-4b(5), on which photoevaporation has removed a substantial part of their outer atmospheres. Here we report observations of the planet TOI-849b, which has a radius smaller than Neptune'  s but an anomalously large mass of39.1-2.6+2.7Earth masses and a density of5.2-0.8+0.7grams per cubic centimetre, similar to Earth'  s. Interior-structure models suggest that any gaseous envelope of pure hydrogen and helium consists of no more than3.9-0.9+0.8 per cent of the total planetary mass. The planet could have been a gas giant before undergoing extreme mass loss via thermal self-disruption or giant planet collisions, or it could have avoided substantial gas accretion, perhaps through gap opening or late formation(6). Although photoevaporation rates cannot account for the mass loss required to reduce a Jupiter-like gas giant, they can remove a small (a few Earth masses) hydrogen and helium envelope on timescales of several billion years, implying that any remaining atmosphere on TOI-849b is likely to be enriched by water or other volatiles from the planetary interior. We conclude that TOI-849b is the remnant core of a giant planet.


Observations of TOI-849b reveal a radius smaller than Neptune'  s but a large mass of about 40 Earth masses, indicating that the planet is the remnant core of a gas giant.


  
ECOSTRESS: NASA's Next Generation Mission to Measure Evapotranspiration From the International Space Station 期刊论文
WATER RESOURCES RESEARCH, 2020, 56 (4)
作者:  Fisher, Joshua B.;  Lee, Brian;  Purdy, Adam J.;  Halverson, Gregory H.;  Dohlen, Matthew B.;  Cawse-Nicholson, Kerry;  Wang, Audrey;  Anderson, Ray G.;  Aragon, Bruno;  Arain, M. Altaf;  Baldocchi, Dennis D.;  Baker, John M.;  Barral, Helene;  Bernacchi, Carl J.;  Bernhofer, Christian;  Biraud, Sebastien C.;  Bohrer, Gil;  Brunsell, Nathaniel;  Cappelaere, Bernard;  Castro-Contreras, Saulo;  Chun, Junghwa;  Conrad, Bryan J.;  Cremonese, Edoardo;  Demarty, Jerome;  Desai, Ankur R.;  De Ligne, Anne;  Foltynova, Lenka;  Goulden, Michael L.;  Griffis, Timothy J.;  Gruenwald, Thomas;  Johnson, Mark S.;  Kang, Minseok;  Kelbe, Dave;  Kowalska, Natalia;  Lim, Jong-Hwan;  Mainassara, Ibrahim;  McCabe, Matthew F.;  Missik, Justine E. C.;  Mohanty, Binayak P.;  Moore, Caitlin E.;  Morillas, Laura;  Morrison, Ross;  Munger, J. William;  Posse, Gabriela;  Richardson, Andrew D.;  Russell, Eric S.;  Ryu, Youngryel;  Sanchez-Azofeifa, Arturo;  Schmidt, Marius;  Schwartz, Efrat;  Sharp, Iain;  Sigut, Ladislav;  Tang, Yao;  Hulley, Glynn;  Anderson, Martha;  Hain, Christopher;  French, Andrew;  Wood, Eric;  Hook, Simon
收藏  |  浏览/下载:23/0  |  提交时间:2020/07/02
ECOSTRESS  eddy covariance  evapotranspiration  latent heat flux  satellite  validation  
Pharmacologic fibroblast reprogramming into photoreceptors restores vision 期刊论文
NATURE, 2020, 581 (7806) : 83-+
作者:  Jiang, Mingkai;  Medlyn, Belinda E.;  Drake, John E.;  Duursma, Remko A.;  Anderson, Ian C.;  Barton, Craig V. M.;  Boer, Matthias M.;  Carrillo, Yolima;  Castaneda-Gomez, Laura;  Collins, Luke;  Crous, Kristine Y.;  De Kauwe, Martin G.;  dos Santos, Bruna M.;  Emmerson, Kathryn M.;  Facey, Sarah L.;  Gherlenda, Andrew N.;  Gimeno, Teresa E.;  Hasegawa, Shun;  Johnson, Scott N.;  Kannaste, Astrid;  Macdonald, Catriona A.;  Mahmud, Kashif;  Moore, Ben D.;  Nazaries, Loic;  Neilson, Elizabeth H. J.;  Nielsen, Uffe N.;  Niinemets, Ulo;  Noh, Nam Jin;  Ochoa-Hueso, Raul;  Pathare, Varsha S.;  Pendall, Elise;  Pihlblad, Johanna;  Pineiro, Juan;  Powell, Jeff R.;  Power, Sally A.;  Reich, Peter B.;  Renchon, Alexandre A.;  Riegler, Markus;  Rinnan, Riikka;  Rymer, Paul D.;  Salomon, Roberto L.;  Singh, Brajesh K.;  Smith, Benjamin;  Tjoelker, Mark G.;  Walker, Jennifer K. M.;  Wujeska-Klause, Agnieszka;  Yang, Jinyan;  Zaehle, Soenke;  Ellsworth, David S.
收藏  |  浏览/下载:45/0  |  提交时间:2020/07/03

Photoreceptor loss is the final common endpoint in most retinopathies that lead to irreversible blindness, and there are no effective treatments to restore vision(1,2). Chemical reprogramming of fibroblasts offers an opportunity to reverse vision loss  however, the generation of sensory neuronal subtypes such as photoreceptors remains a challenge. Here we report that the administration of a set of five small molecules can chemically induce the transformation of fibroblasts into rod photoreceptor-like cells. The transplantation of these chemically induced photoreceptor-like cells (CiPCs) into the subretinal space of rod degeneration mice (homozygous for rd1, also known as Pde6b) leads to partial restoration of the pupil reflex and visual function. We show that mitonuclear communication is a key determining factor for the reprogramming of fibroblasts into CiPCs. Specifically, treatment with these five compounds leads to the translocation of AXIN2 to the mitochondria, which results in the production of reactive oxygen species, the activation of NF-kappa B and the upregulation of Ascl1. We anticipate that CiPCs could have therapeutic potential for restoring vision.


A set of five small molecules can induce the transformation of fibroblasts into rod photoreceptor-like cells, which can partially restore pupil reflex and visual function when transplanted into a rod degeneration mouse model.


  
Protecting irrecoverable carbon in Earth's ecosystems 期刊论文
NATURE CLIMATE CHANGE, 2020, 10 (4) : 287-295
作者:  Goldstein, Allie;  Turner, Will R.;  Spawn, Seth A.;  Anderson-Teixeira, Kristina J.;  Cook-Patton, Susan;  Fargione, Joseph;  Gibbs, Holly K.;  Griscom, Bronson;  Hewson, Jennifer H.;  Howard, Jennifer F.;  Ledezma, Juan Carlos;  Page, Susan;  Koh, Lian Pin;  Rockstroem, Johan;  Sanderman, Jonathan;  Hole, David G.
收藏  |  浏览/下载:14/0  |  提交时间:2020/05/13
First direct observation of sea salt aerosol production from blowing snow above sea ice 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (4) : 2549-2578
作者:  Frey, Markus M.;  Norris, Sarah J.;  Brooks, Ian M.;  Anderson, Philip S.;  Nishimura, Kouichi;  Yang, Xin;  Jones, Anna E.;  Mastromonaco, Michelle G. Nerentorp;  Jones, David H.;  Wolff, Eric W.
收藏  |  浏览/下载:11/0  |  提交时间:2020/07/02
Identifying Source Regions and the Distribution of Cross-Tropopause Convective Outflow Over North America During the Warm Season 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2019, 124 (24) : 13750-13762
作者:  Clapp, C. E.;  Smith, J. B.;  Bedka, K. M.;  Anderson, J. G.
收藏  |  浏览/下载:1/0  |  提交时间:2020/02/17
NAMA  convection  circulation  stratosphere  
Embryonal precursors of Wilms tumor 期刊论文
SCIENCE, 2019, 366 (6470) : 1247-+
作者:  Coorens, Tim H. H.;  Treger, Taryn D.;  Al-Saadi, Reem;  Moore, Luiza;  Tran, Maxine G. B.;  Mitchell, Thomas J.;  Tugnait, Suzanne;  Thevanesan, Christine;  Young, Matthew D.;  Oliver, Thomas R. W.;  Oostveen, Minou;  Collord, Grace;  Tarpey, Patrick S.;  Cagan, Alex;  Hooks, Yvette;  Brougham, Mark;  Reynolds, Ben C.;  Barone, Giuseppe;  Anderson, John;  Jorgensen, Mette;  Burke, G. A. Amos;  Visser, Johannes;  Nicholson, James C.;  Smeulders, Naima;  Mushtaq, Imran;  Stewart, Grant D.;  Campbell, Peter J.;  Wedge, David C.;  Martincorena, Inigo;  Rampling, Dyanne;  Hook, Liz;  Warren, Anne Y.;  Coleman, Nicholas;  Chowdhury, Tanzina;  Sebire, Neil;  Drost, Jarno;  Saeb-Parsy, Kourosh;  Stratton, Michael R.;  Straathof, Karin;  Pritchard-Jones, Kathy;  Behjati, Sam
收藏  |  浏览/下载:10/0  |  提交时间:2020/02/17
Multiscale trends and precipitation extremes in the Central American Midsummer Drought 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2019, 14 (12)
作者:  Anderson, Talia G.;  Anchukaitis, Kevin J.;  Pons, Diego;  Taylor, Matthew
收藏  |  浏览/下载:7/0  |  提交时间:2020/02/17
Midsummer Drought  Central America  agriculture  North Atlantic Subtropical High  Caribbean Low Level Jet  trends  
Comment on "The global tree restoration potential" 期刊论文
SCIENCE, 2019, 366 (6463)
作者:  Veldman, Joseph W.;  Aleman, Julie C.;  Alvarado, Swanni T.;  Anderson, T. Michael;  Archibald, Sally;  Bond, William J.;  Boutton, Thomas W.;  Buchmann, Nina;  Buisson, Elise;  Canadell, Josep G.;  Dechoum, Michele de Sa;  Diaz-Toribio, Milton H.;  Durigan, Giselda;  Ewel, John J.;  Fernandes, G. Wilson;  Fidelis, Alessandra;  Fleischman, Forrest;  Good, Stephen P.;  Griffith, Daniel M.;  Hermann, Julia-Maria;  Hoffmann, William A.;  Le Stradic, Soizig;  Lehmann, Caroline E. R.;  Mahy, Gregory;  Nerlekar, Ashish N.;  Nippert, Jesse B.;  Noss, Reed F.;  Osborne, Colin P.;  Overbeck, Gerhard E.;  Parr, Catherine L.;  Pausas, Juli G.;  Pennington, R. Toby;  Perring, Michael P.;  Putz, Francis E.;  Ratnam, Jayashree;  Sankaran, Mahesh;  Schmidt, Isabel B.;  Schmitt, Christine B.;  Silveira, Fernando A. O.;  Staver, A. Carla;  Stevens, Nicola;  Still, Christopher J.;  Stromberg, Caroline A. E.;  Temperton, Vicky M.;  Varner, J. Morgan;  Zaloumis, Nicholas P.
收藏  |  浏览/下载:16/0  |  提交时间:2019/11/27