/   Home   /   Newsroom   /   Research News
Odonates;Cretaceous;Burmese amber;Courtship behaviours

Courtship Behaviour Trapped in 100-Million-Year-Old Amber[Mar 20, 2017]

Courtship behaviours, frequent among modern insects, have left extremely rare fossil traces. Recently, Scientists described three male damselflies showing ancient courtship behaviour from mid-Cretaceous Burmese amber. The new findings provide suggestive evidence of damselfly courtship behaviour as far back as the mid-Cretaceous.

Thirty Meter Telescope;M3  prototype;teriary mirror system;TMT;Giant Steerable Science Mirror;GSSM

TMT's Tertiary Mirror Enters Production Stage[Mar 20, 2017]

The Thirty Meter Telescope (TMT) successfully completed the Test Results Review of the Telescope Tertiary Mirror (M3) Prototype. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) of Chinese Academy of Sciences engineers presented a series of tests on the M3 prototype, which received full approval from the members of the multinational review panel. As a result, CIOMP is now moving into the construction phase of its full-scale tertiary mirror system for TMT.

two-dimensional electron gas;Edelstein effect;spin pumping;spin-to-charge conversion;LAO/STO interface;interface

Inverse Edelstein Effect Observed in Rashba-split 2DEG at Complex Oxide Interfaces at Room Temperature[Mar 20, 2017]

The Rashba physics has been intensively studied in the field of spin orbitronics for the purpose of searching novel physical properties and the ferromagnetic (FM) magnetization switching for technological applications. We report our observation of the inverse Edelstein effect up to room temperature in the Rashba-split two-dimensional electron gas (2DEG) between two insulating oxides, SrTiO3 and LaAlO3, with the LaAlO3 layer thickness from 3 to 40 unit cells (UC). We further demonstrate that the spin voltage could be markedly manipulated by electric field effect for the 2DEG between SrTiO3 and 3-UC LaAlO3. These results demonstrate that the Rashba-split 2DEG at the complex oxide interface can be used for efficient charge-and-spin conversion at room temperature for the generation and detection of spin current.

Weyl semimetal;Adler-Bell-Jackiw Anomaly;MR;crystal;electrical gating;ABJ;quasiclassical regime

SHMFF Users Observe Adler-Bell-Jackiw Anomaly in Type-II Weyl Semimetal[Mar 20, 2017]

Using the low temperature X-ray diffraction (XRD) at High Magnetic Field Laboratory, Chinese Academy of Sciences(CHMFL), a research group in Najing University observed Anisotropic Adler-Bell-Jackiw (ABJ) anomaly in Type-II Weyl semimetal WTe1.98 crystals at the Quasi-classical Regime. It provides experimental evidence of an anisotropic ABJ anomaly in a type-II Weyl semimetal.

differentiation;extracellular-signal-regulated kinase;ERK;MAPK;mitogen-activated protein kinase;Lin28a;phosphorylation;proliferation;

Extracellular Signal-regulated Kinases Phosphorylate Lin28a Protein to Modulate P19 Cell Proliferation and Differentiation[Mar 20, 2017]

Proliferation and differentiation are tightly coupled processes for stem cells which are regulated by signals from extracellular environment. A research team led by Dr. GAO Daming at Shanghai Institute of Biochemistry and Cell Biology of Chinese Academy of Sciences (CAS) recently revealed a new regulatory mechanism connecting extra-cellular signal and micro-RNA function.

cropland abandonment;Karst region;soil organic matter;spontaneous regeneration;tree plantation

Plantation with Economic Tree Species and Spontaneous Regeneration are Likely Equally Effective in Soil C Sequestration[Mar 20, 2017]

In order to evaluate soil C and N stock (0- 15cm) change, a team of researchers in the Institute of Subtropical Agriculture have spent 13 years to measure soil C and N of after cropland conversion in a karst area, southwest China. They selected four restoration strategies through spontaneous- for- time substitution approach as reference: restoration with an economic tree species Toona sinensis (TS), restoration with Guimu-1 hybrid elephant grass (GG), restoration with a combination of Zenia insignis and Guimu-1 hybrid elephant grass (ZG), and spontaneous regeneration (SR).

FirstPrev12345NextFinal

Contact Us

en_about_05.jpg

Chinese Academy of Sciences

Add: 52 Sanlihe Rd., Xicheng District, Beijing, China  

Postcode: 100864 

Tel: 86-10-68597521 (day)   86-10-68597289 (night)

Fax: 86-10-68511095 (day)  86-10-68512458 (night)

E-mail: cas_en@cas.cn

Contact Us

Copyright © 2002 - 2017 Chinese Academy of Sciences