| Can't view this email? Click here to view in your browser. | | | | Volume 488 Number 7411 | | | nature | | The science that matters. Every week. | | | | | | |
| | | | | | | AIMResearch - Highlighting the latest research from the WPI Advanced Institute for Materials Research, Tohoku University, Japan. Latest highlights: Spintronics: Both sides polarized | Cell imaging: Switching it up | Oxide materials: Hidden layers | Metallic glasses: Nanowire gems in the particle dust | In the spotlight: Bringing mathematics to life (roundtable interview) Register today for monthly email alerts and never miss the latest in materials research from the WPI-AIMR! | | | | | | | | |
| Jump to the content that matters to you | | | | |
| | | Specials - Insight: Chemistry and energy | | | | This series of Reviews highlights some of the lines of scientific and engineering research that may eventually deliver the technological innovations we need if we are to harvest energy from alternative sources in the future. Possible strategies range from the well-established photovoltaics to newly emerging methods, such as the use of algae to produce potential fuels. ▼ more | | | | | | | | | Passenger deletions generate therapeutic vulnerabilities in cancer | A search for genetic deletions in cancer patients that also encompass a nearby functionally redundant passenger gene - usually genes with 'housekeeping' roles for example in cellular metabolism - provides potential alternative candidates as targets for anticancer drugs. | | | | | | | | | Room-temperature solid-state maser | The maser is the microwave-frequency precursor of the now ubiquitous laser - or 'optical maser' as it was once known. Masers typically require vacuum and/or low-temperature operating conditions, a factor that has mitigated against their wide use. But here is an easy-to-use bench-top solid maser that operates at room temperature. Applications in science and technology should follow. | | | | | | | | | | | | | | NPG Asia Materials has received its first impact factor: 5.533* Good reasons to submit your next excellent paper to NPG Asia Materials: - Ranked 20 of 231 in Multidisciplinary Materials Science* - Open Access: anyone can download and read your paper - High exposure on nature.com - Widely read by the global audience *2011 Journal Citation Reports(R) Science Edition (Thomson Reuters, 2012) Submit online! | | | | | | | | | | | | | | Reconstructing Native American population history | The settlement of the Americas occurred at least 15,000 years ago through the Beringia land bridge between Asia and America that existed during the ice ages. This new survey of genetic variation in Native American and Siberian populations provides support for the controversial hypothesis that the Americas were peopled in three waves of migration from Asia. | | | | | | | | | | In this week's podcast: The rise of the maser, a tasty journey along the Silk Road, and a neat little recipe for an important drug. | | | | | | |
| | | | | | | | | | | | | | | | | Repeat after me ▶ | | | With plagiarism seemingly endemic in Romania, as well as rife among Europe's political class, a bid by academics to root out misconduct deserves widespread support. | | | | | | | | Safety shambles ▶ | | | Lax management of Fukushima clean-up intensifies concerns over Japan's nuclear future. | | | | | | | | | | | | | | | | | Seven days: 10–16 August 2012 ▶ | | | The week in science: US declares hottest month ever recorded; CERN physicists make hottest-ever plasma; and Indian politicians look coldly on GM crop trials. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Q&A: The social roboticist ▶ | | | Maja Matarić, a computer scientist and neuroscientist at the University of Southern California in Los Angeles, makes robots that assist people with disabilities, children with autism and elderly people — a phenomenon explored in the film Robot and Frank (2012). On the eve of its release, she talks about the future of socially assistive machines. | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | Recurrent R-spondin fusions in colon cancer OPEN ▶ | | | Somasekar Seshagiri, Eric W. Stawiski, Steffen Durinck, Zora Modrusan, Elaine E. Storm et al. | | | Exomes, transcriptomes and copy-number alterations in a sample of more than 70 primary human colonic tumours were analysed in an attempt to characterize the genomic landscape; in addition to finding alterations in genes associated with commonly mutated signalling pathways, recurrent gene fusions involving R-spondin family members were also found to occur in approximately 10% of colonic tumours, revealing a potential new therapeutic target. | | | | | | | | Tumour suppressor RNF43 is a stem-cell E3 ligase that induces endocytosis of Wnt receptors ▶ | | | Bon-Kyoung Koo, Maureen Spit, Ingrid Jordens, Teck Y. Low, Daniel E. Stange et al. | | | In vivo and in vitro studies show that the stem-cell E3 ubiquitin ligases RNF43 and ZNRF3 act as tumour suppressors in colorectal cancer models, and are involved in the negative regulation of the cancer-associated Wnt signalling pathway through limiting the cell-surface expression of Wnt receptors. | | | | | | | | | | | | | | | | | Chronic lymphocytic leukaemia is driven by antigen-independent cell-autonomous signalling ▶ | | | Marcus Dühren-von Minden, Rudolf Übelhart, Dunja Schneider, Thomas Wossning, Martina P. Bach et al. | | | B-cell receptor (BCR) signalling in chronic lymphocytic leukaemia (CLL) is found not to be dependent on exogenous antigens; instead, signalling may involve the binding of the BCR heavy-chain complementarity-determining region to self epitopes on the same receptor, a finding that may have important implications for understanding the pathogenesis of CLL and potential therapeutic approaches. | | | | | | | | | | | | | | | | | | | | Passenger deletions generate therapeutic vulnerabilities in cancer ▶ | | | Florian L. Muller, Simona Colla, Elisa Aquilanti, Veronica E. Manzo, Giannicola Genovese et al. | | | The ‘collateral’ homozygous deletion of essential redundant housekeeping genes in cancer genomes is shown to confer therapeutic vulnerability on cancer cells with the deletion, without affecting genomically intact normal non-cancerous cells, suggesting new therapeutic opportunities. | | | | | | | | Division and subtraction by distinct cortical inhibitory networks in vivo ▶ | | | Nathan R. Wilson, Caroline A. Runyan, Forea L. Wang & Mriganka Sur | | | Use of a two-way optical system to activate subclasses of inhibitory neurons, while simultaneously monitoring responses in target cells within cortical circuits in vivo, reveals that parvalbumin-expressing and somatostatin-expressing neurons exert distinct effects on cellular responses across the network. | | | | | | | | | | | Reconstructing Native American population history ▶ | | | David Reich, Nick Patterson, Desmond Campbell, Arti Tandon, Stéphane Mazieres et al. | | | A survey of genetic variation in Native American and Siberian populations reveals that Native Americans are descended from at least three streams of gene flow from Asia: after the initial peopling of the continent there was a southward expansion facilitated by the coast, with sequential population splits and little gene flow after divergence, especially in South America. | | | | | | | | A biophysical signature of network affiliation and sensory processing in mitral cells ▶ | | | Kamilla Angelo, Ede A. Rancz, Diogo Pimentel, Christian Hundahl, Jens Hannibal et al. | | | Functional heterogeneity within a class of neurons is investigated by comparing the intrinsic properties of pairs of mitral cells belonging to either the same or different glomerular circuits; this shows that neuronal excitability is stereotypic for mitral cells from the same olfactory network, indicating that local circuits are functionally adapted to process subtly distinct information. | | | | | | | | Activation of specific interneurons improves V1 feature selectivity and visual perception ▶ | | | Seung-Hee Lee, Alex C. Kwan, Siyu Zhang, Victoria Phoumthipphavong, John G. Flannery et al. | | | Optogenetic activation of parvalbumin-expressing versus other classes of interneurons is found to have distinct effects on the response properties of individual and populations of excitatory cells, as well as on visual behaviour in awake mice, providing evidence that this specific interneuron subtype has a unique role in visual coding and perception. | | | | | | | | | | | | | | APJ acts as a dual receptor in cardiac hypertrophy ▶ | | | Maria Cecilia Scimia, Cecilia Hurtado, Saugata Ray, Scott Metzler, Ke Wei et al. | | | APJ is shown to be a bifunctional receptor for both mechanical stretch and the endogenous peptide apelin, a finding that is important for the development of APJ agonists to treat heart failure. | | | | | | | | ‘Slings’ enable neutrophil rolling at high shear ▶ | | | Prithu Sundd, Edgar Gutierrez, Ekaterina K. Koltsova, Yoshihiro Kuwano, Satoru Fukuda et al. | | | During inflammation neutrophils roll along the vascular endothelium; here, previously unknown structures called ‘slings’, which appear and persist at the front of rolling cells in vivo and in vitro, are described. | | | | | | | | | | | | | | The dynamic disulphide relay of quiescin sulphydryl oxidase ▶ | | | Assaf Alon, Iris Grossman, Yair Gat, Vamsi K. Kodali, Frank DiMaio et al. | | | The X-ray crystal structures of trypanosome and mammalian quiescin sulphydryl oxidase are determined; these structures and follow-up biochemical studies show that large conformational changes occur as the enzyme relays disulphide bonds through its redox-active sites. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | Room-temperature solid-state maser ▶ | | | Mark Oxborrow, Jonathan D. Breeze & Neil M. Alford | | | Using an organic molecular crystal as gain medium allows a maser to be operated in pulsed mode in air, at room temperature and in the terrestrial magnetic field, so avoiding many of the obstacles that have previously hindered the application of masers. | | | | | | | | | | | | | | APJ acts as a dual receptor in cardiac hypertrophy ▶ | | | Maria Cecilia Scimia, Cecilia Hurtado, Saugata Ray, Scott Metzler, Ke Wei et al. | | | APJ is shown to be a bifunctional receptor for both mechanical stretch and the endogenous peptide apelin, a finding that is important for the development of APJ agonists to treat heart failure. | | | | | | | | | | | The dynamic disulphide relay of quiescin sulphydryl oxidase ▶ | | | Assaf Alon, Iris Grossman, Yair Gat, Vamsi K. Kodali, Frank DiMaio et al. | | | The X-ray crystal structures of trypanosome and mammalian quiescin sulphydryl oxidase are determined; these structures and follow-up biochemical studies show that large conformational changes occur as the enzyme relays disulphide bonds through its redox-active sites. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Non-classical light generated by quantum-noise-driven cavity optomechanics ▶ | | | Daniel W. C. Brooks, Thierry Botter, Sydney Schreppler, Thomas P. Purdy, Nathan Brahms et al. | | | The effect of quantum radiation-pressure fluctuations on the collective motion of ultracold atoms is observed in a cavity-optomechanical system, and the back-action of this motion on the cavity light field is shown to produce sub-shot-noise optical squeezing. | | | | | | | | | | | | | | Room-temperature solid-state maser ▶ | | | Mark Oxborrow, Jonathan D. Breeze & Neil M. Alford | | | Using an organic molecular crystal as gain medium allows a maser to be operated in pulsed mode in air, at room temperature and in the terrestrial magnetic field, so avoiding many of the obstacles that have previously hindered the application of masers. | | | | | | | | | | | More extreme swings of the South Pacific convergence zone due to greenhouse warming ▶ | | | Wenju Cai, Matthieu Lengaigne, Simon Borlace, Matthew Collins, Tim Cowan et al. | | | The South Pacific convergence zone is a region of high precipitation spanning a vast swath of the Pacific Ocean that can shift northwards and become longitudinally oriented; such extreme zonal events have severe weather and climatic impacts and are predicted to become more frequent under greenhouse warming conditions. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | An index to assess the health and benefits of the global ocean ▶ | | | Benjamin S. Halpern, Catherine Longo, Darren Hardy, Karen L. McLeod, Jameal F. Samhouri et al. | | | This study develops a wide-ranging index to assess the many factors that contribute to the health and benefits of the oceans, and the scores for all costal nations are assessed. | | | | | | | | | | | | | | More extreme swings of the South Pacific convergence zone due to greenhouse warming ▶ | | | Wenju Cai, Matthieu Lengaigne, Simon Borlace, Matthew Collins, Tim Cowan et al. | | | The South Pacific convergence zone is a region of high precipitation spanning a vast swath of the Pacific Ocean that can shift northwards and become longitudinally oriented; such extreme zonal events have severe weather and climatic impacts and are predicted to become more frequent under greenhouse warming conditions. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | |
|
| | | | | | | | | Training: Workshops that work ▶ | | | Seminars on career alternatives and soft skills can provide crucial tips for advancement. But some workshops are more helpful than others. | | | | | | | | | | | | | | | | | | | | | | | Industrial outcomes ▶ | | | Academics sponsored by large firms have lower publication rates than those with other funding sources. | | | | | | | | | | | Awards for women ▶ | | | Programme aims to boost scientific participation for women from 81 developing nations. | | | | | | | | | | | | | | | | | Careers related news & comment | | | | | | | | | | | | |
| | | naturejobs.com Science jobs of the week | | | | | | | | | | | | | | | No matter what your career stage, student, postdoc or senior scientist, you will find articles on naturejobs.com to help guide you in your science career. Keep up-to-date with the latest sector trends, vote in our reader poll and sign-up to receive the monthly Naturejobs newsletter. | | | | | | | • Nature events featured events | | | | | | natureevents featured events | | | | | | | Nature events is the premier resource for scientists looking for the latest scientific conferences, courses, meetings and symposia. Featured across Nature Publishing Group journals and centrally at natureevents.com it is an essential reference guide to scientific events worldwide. | | | | |
| | | | | | | | | | | | Your email address is in the Nature mailing list. You have been sent this Table of Contents Alert because you have opted in to receive it. You can change or discontinue your e-mail alerts at any time, by modifying your preferences on your nature.com account at: www.nature.com/nams/svc/myaccount (You will need to log in to be recognised as a nature.com registrant). For further technical assistance, please contact subscriptions@nature.com For other enquiries, please contact feedback@nature.com | Nature Publishing Group | 75 Varick Street, 9th floor | New York | NY 10013-1917 | USA
Nature Publishing Group's offices: Principal offices: London - New York - Tokyo Worldwide offices: Basingstoke - Boston - Buenos Aires - Delhi - Hong Kong - Madrid - Melbourne - Munich - Paris - San Francisco - Seoul - Washington DC
Macmillan Publishers Limited is a company incorporated in England and Wales under company number 785998 and whose registered office is located at Brunel Road, Houndmills, Basingstoke, Hampshire RG21 6XS. © 2012 Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. | | | |
No comments:
Post a Comment