モントリオール議定書にハイドロフルオロカーボンを組み込めるかどうかは、気候変動問題に対する国際社会の責任感を試す試金石だ。
All together now p.593
Online discussion is an essential aspect of the post-publication review of findings.
doi: 10.1038/502593a
Online discussion is an essential aspect of the post-publication review of findings.
doi: 10.1038/502593a
Proposals to bring hydrofluorocarbons under the auspices of the Montreal Protocol provide a simple test of the international community’s commitment to tackling climate change.
doi: 10.1038/502593b
A half-century of Doctor Who has shown the dramatic possibilities of science in the arts.
doi: 10.1038/502594a
Cases in Syria highlight vulnerability of nearby countries to the viral disease.
doi: 10.1038/502601a
Entrepreneur’s ‘Project Einstein’ taps 400 top academics for their DNA.
doi: 10.1038/502602a
Theorist’s idea takes on information-preservation problem.
doi: 10.1038/502603a
Project to forecast African storms provides cheap alternative to radar-based weather services.
doi: 10.1038/502604a
Kepler data spur searches for habitable planets around small, low-temperature stars.
doi: 10.1038/502606a
Analytical technique promises to match fertilizers to soil in bid to boost yields in Africa.
doi: 10.1038/502607a
Can the Southern African Large Telescope live up to its potential?
doi: 10.1038/502608a
Diane Orihel set her PhD aside to lead a massive protest when Canada tried to shut down its unique Experimental Lakes Area.
doi: 10.1038/502612a
乾燥地帯では、乾燥が強まるにつれて土壌中の炭素、窒素とリンのバランスが変化しているという研究結果から、全球的な気候変動が土壌の肥沃性と生態系サービスにどのように影響を及ぼすのかについての手がかりが得られる。
doi: 10.1038/502628a
完全なRNAポリメラーゼI複合体の結晶構造が、今回明らかにされた。この構造が、RNAポリメラーゼI上のDNAが結合するのに使われる裂け目の開閉と転写制御とを結びつけている。
doi: 10.1038/nature12700
電子伝導体中の１つ１つの電子の制御が可能になれば、新規な量子技術につながる道が開かれるだろう。ナノスケールの電極中の電子の海から単一の電子を引き出すことが今回可能になった。
doi: 10.1038/nature12699
溶液中での化学反応の動態はクラマースの理論によって記述されるが、それに関わるパラメーターは直接測定されたことがなかった。タンパク質の折りたたみについての研究によって、この問題をどのようにしたら克服できるかが示された。
doi: 10.1038/nature12697
包括的な調査によって、排水の産生、処理および使用に関するデータの全球的な不足が明らかになった。この状況が改善されれば、政府が排水というこの貴重な資源の管理に対する法律を制定するのに役立つだろう。
doi: 10.1038/502633a
サンゴに共生して光合成を行う藻類は、海洋の水温調節に関わる硫黄化合物を産生している。研究の展開過程で、動物であるサンゴが同じ化合物を産生していることが明らかになった。
doi: 10.1038/nature12698
Immunofluorescence imaging and computational modelling are used to study the spatial distribution of different cell types within the haematopoietic stem cell (HSC) niche; findings show that quiescent HSCs associate specifically with small arterioles that are preferentially found in the endosteal bone marrow and are essential in maintaining this quiescence.
doi: 10.1038/nature12612
RNA polymerase (Pol) I transcribes ribosomal RNA that is critically required for ribosome assembly, and the enzyme is a major determinant of protein biosynthesis and cell growth; here the crystal structure of the complete 14-subunit Pol I from yeast is determined, providing insights into its unique architecture and the possible functional roles of its components.
doi: 10.1038/nature12636
The crystal structure of the complete 14-subunit RNA polymerase (Pol) I from yeast is determined, providing insights into its unique architecture and the possible functional roles of its components.
doi: 10.1038/nature12712
A uniform iron abundance in the intracluster gas of the Perseus cluster suggests that the metal enrichment of the intergalactic medium occurred before the cluster formed, probably more than ten billion years ago, rather than after the cluster formed.
doi: 10.1038/nature12646
Minimal-excitation fermionic quasiparticles are created by applying a potential with Lorentzian time dependence to the contact of a narrow constriction in a two-dimensional electron gas.
doi: 10.1038/nature12713
A single electron in a defined orbital is found to interact with a quantum many-body system through electron–phonon coupling.
doi: 10.1038/nature12592
Four reconstructions of North American ice-sheet history are tested using oxygen isotope records from the Gulf of Mexico in a water-mixing model; the one based on ice physics is the best match to the isotopic data and to the observed Last Glacial Maximum fall in sea level due to melting of the Laurentide ice sheet.
doi: 10.1038/nature12609
Soil samples collected from 224 dryland sites around the world show that aridity affects the concentration of organic carbon and total nitrogen differently from the concentration of inorganic phosphorus, suggesting that any predicted increase in aridity with climate change could uncouple the carbon, nitrogen and phosphorus cycles in drylands and negatively affect the services provided by these ecosystems.
doi: 10.1038/nature12670
Until now, dimethylsulphoniopropionate (DMSP), an important component in the sulphur cycle, has been thought to be produced solely by algae and some plants; however, this study shows that the coral animal also produces DMSP, in addition to that produced by the coral’s algal symbiont, with potential implications for the sulphur cycle and its climatic consequences as corals and their symbionts are affected by global change.
doi: 10.1038/nature12677
The magnetosome-associated protein mamP is an iron oxidase that reveals a unique arrangement of a self-plugged PDZ domain fused to two magnetochrome domains, defining a new class of c-type cytochrome exclusively found in magnetotactic bacteria.
doi: 10.1038/nature12573
Here the Kramers diffusion coefficient and free-energy barrier are characterized for the first time through single-molecule fluorescence measurements of the temperature- and viscosity-dependence of the transition path time for protein folding.
doi: 10.1038/nature12649
In Arabidopsis thaliana, the rhythm of sugar production by photosynthesis sets the timing of the circadian clock, by regulating the expression of circadian clock genes.
doi: 10.1038/nature12603
A non-oxidative, cyclic pathway—termed non-oxidative glycolysis—is designed and constructed that enables complete carbon conservation in sugar catabolism to acetyl-coenzyme A, and can be used to achieve a 100% carbon yield to fuels and chemicals.
doi: 10.1038/nature12575
Pathway docking (in silico docking of metabolites to several enzymes and binding proteins in a metabolic pathway) enables the discovery of a catabolic pathway for the osmolyte trans-4-hydroxy-l-proline betaine.
doi: 10.1038/nature12576
Meiotic crossover regulation is proposed to operate as a self-limiting system in which meiotic chromosome structures create an environment that promotes crossovers, which in turn modify chromosome structures to inhibit crossover formation at additional neighbouring sites.
doi: 10.1038/nature12577
This study reports the first application of Zernike phase contrast (ZPC) electron cryo-tomography to examine cellular processes without the need for labelling or sectioning; the technique is used to visualize the maturation of the cyanophage Syn5 inside its host cell, identifying subcellular compartments and five distinct Syn5 assembly intermediates.
doi: 10.1038/nature12604
