B中間子の奇妙な挙動は、標準模型を超えた物理世界を垣間見せてくれる。
Rare particle decays offer hope of new physics p.185
The strange and subtle behaviour of B mesons could crack open the standard model.
doi: 10.1038/546185b
The strange and subtle behaviour of B mesons could crack open the standard model.
doi: 10.1038/546185b
A notable anniversary highlights the progress and benefits of contraceptives, but also the continuing battle for access to them.
doi: 10.1038/546185a
Four Nature papers describing the receptor structures involved in glucose metabolism hold great promise for finding new ways to treat diabetes.
doi: 10.1038/546186a
European Commission reveals widespread delays by the country’s authorities to halt spread of deadly plant disease.
doi: 10.1038/546193a
Space agency takes a hard look at plans for its next big space observatory.
doi: 10.1038/546195a
United Nations meeting hopes to focus artificial intelligence on sustainable development goals.
doi: 10.1038/546196a
Researchers refuse to sit on evaluation panels after government bans international participation.
doi: 10.1038/546197a
Withdrawal from global pact may take almost four years — which could give the winner of the 2020 presidential race the final word.
doi: 10.1038/nature.2017.22096
米国では、200年以上も前から恣意的な選挙区割りが横行しているが、一部の数学者たちは、アルゴリズムとモデルでこうした状況を変えようと模索している。
doi: 10.1038/546200a
化石記録に空白があることから、ホモ・サピエンスの進化の解明が制限されている。今回、知られている中で最古のホモ・サピエンスの化石がモロッコで発見され、アフリカにおけるヒト進化についての考えが見直されるかもしれない。
doi: 10.1038/546212a
光ファイバーを用いる高速通信システムには、数百本のレーザーが必要なことが多い。こうしたレーザーを単一の環状光デバイスに置き換える方法によって、多くの技術的利点が得られる。
doi: 10.1038/546214a
細胞核内の液滴に似たRNA集合体は、特定の神経変性疾患と関連がある。今回、実験によって、こうした集合体が細胞内で「固まった」ゲルになることが明らかになり、その毒性を説明できる可能性がでてきた。
doi: 10.1038/nature22503
今回、2種の二次元材料が、鉄の棒磁石に見られるよく知られた種類の磁性である強磁性を示すことが分かった。こうした材料には、センシングからデータ記憶までさまざまな応用が考えられる。
doi: 10.1038/546216a
進化では、局所環境に最もよく適応した身体形態が有利になるが、まれな形態が有利になることもある。今回、イトヨの実験によって、こうした2つの選択力がどのように相互作用し、集団の分岐をどのように制限しているかが明らかになった。
doi: 10.1038/nature22502
地質記録には、地球の軌道と自転の周期的変化に地球の気候がどのように応答したかを示す証拠が含まれている。今回、こうした記録を利用して過去の気候ダイナミクスの見積もりを絞り込む方法が明らかになった。
doi: 10.1038/nature22501
doi: 10.1038/nature21721
doi: 10.1038/nature22346
doi: 10.1038/nature22379
Nucleotide repeat expansions create templates for multivalent base-pairing, which causes RNA to undergo a sol–gel phase transition and may explain the formation of nuclear RNA foci that are commonly observed in several neurological and neuromuscular diseases.
doi: 10.1038/nature22386
The structure of the GLP-1 receptor complexed with its ligand offers insight into the mechanism of class B G-protein-coupled receptor activation.
doi: 10.1038/nature22394
The solved crystal structure of the GLP-1 receptor bound to a truncated agonist enables the design of synthetic agonists that exhibit potent activity in vivo.
doi: 10.1038/nature22800
The crystal structure of the full-length human glucagon receptor reveals the essential role of the 12-residue ‘stalk’ segment and an extracellular loop in the regulation of ligand binding and receptor activation.
doi: 10.1038/nature22363
Intrinsic long-range ferromagnetic order is observed in few-layer Cr2Ge2Te6 crystals, with a transition temperature that can be controlled using small magnetic fields.
doi: 10.1038/nature22060
Magneto-optical Kerr effect microscopy is used to show that monolayer chromium triiodide is an Ising ferromagnet with out-of-plane spin orientation.
doi: 10.1038/nature22391
Frequency combs produced by solitons in silicon-based optical microresonators are used to transmit data streams of more than 50 terabits per second in telecommunication wavelength bands.
doi: 10.1038/nature22387
A computational tool that combines human-like chemical understanding with ab initio methods guides the compositional choice of complex five-component metallic oxides, yielding two new complex crystal structures.
doi: 10.1038/nature22374
In a study using stickleback fish, negative frequency-dependent selection favours rare immigrants over common residents, weakening the effect of divergent natural selection.
doi: 10.1038/nature22351
New human fossils from Jebel Irhoud (Morocco) document the earliest evolutionary stage of Homo sapiens and display modern conditions of the face and mandible combined with more primative features of the neurocranium.
doi: 10.1038/nature22336
Thermoluminescence dating of fire-heated flint artefacts, and directly associated newly discovered remains of Homo sapiens, indicate that the Middle Stone Age site of Jebel Irhoud in Morocco is 383–247 thousand years old.
doi: 10.1038/nature22335
In a prairie vole (Microtus ochrogaster) model of social bonding, a functional circuit from the prefrontal cortex to nucleus accumbens is dynamically modulated to enhance females’ affiliative behaviour towards a partner.
doi: 10.1038/nature22381
Combined studies in MYC-driven mouse lymphomas and human Burkitt lymphoma unravel an essential role for the B-cell antigen receptor in the control of tumour B-cell fitness both in vitro and in vivo, with possible biological and clinical implications.
doi: 10.1038/nature22353
Random mutagenesis in haploid human cells coupled to quantitative protein measurements with different antibodies is used as a readout for individual cellular phenotypes.
doi: 10.1038/nature22376
Crystal structures of the human GLP-1 receptor in complex with two negative allosteric modulators reveal a common binding pocket, and, together with mutagenesis and modelling studies, further our understanding of the receptor activation mechanism.
doi: 10.1038/nature22378