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Showing 1 to 12 of 1767 entries
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A Devonian tetrapod-like fish reveals substantial parallelism in stem tetrapod evolution

STEM and diversity

Ahlberg PE, Zhao WJ, Zhu M.
GSID: 8LYfZTNv_ccJ
M Zhu, PE Ahlberg, WJ Zhao, LT Jia - Nature Ecology & Evolution, 2017 - nature.com

… increase in homoplasy in the tetrapod stem group. It also suggests that ecological diversity and biogeographical provinciality in the tetrapod stem group have been underestimated. …

Theoretical studies on gas-phase reactions of sulfuric acid catalyzed hydrolysis of formaldehyde and formaldehyde with sulfuric acid and H2SO4···H2O complex.

The journal of physical chemistry. A

Long B, Tan XF, Chang CR, Zhao WX, Long ZW, Ren DS, Zhang WJ.
PMID: 23701044
J Phys Chem A. 2013 Jun 20;117(24):5106-16. doi: 10.1021/jp312844z. Epub 2013 Jun 05.

The gas-phase reactions of sulfuric acid catalyzed hydrolysis of formaldehyde and formaldehyde with sulfuric acid and H2SO4···H2O complex are investigated employing the high-level quantum chemical calculations with M06-2X and CCSD(T) theoretical methods and the conventional transition state theory (CTST)...

Access to dihydropyridinones and spirooxindoles: application of N-heterocyclic carbene-catalyzed [3+3] annulation of enals and oxindole-derived enals with 2-aminoacrylates.

Chemical communications (Cambridge, England)

Zhao LL, Li XS, Cao LL, Zhang R, Shi XQ, Qi J.
PMID: 28513660
Chem Commun (Camb). 2017 May 30;53(44):5985-5988. doi: 10.1039/c7cc02753b.

A strategy for the NHC-catalyzed synthesis of dihydropyridinones and spirooxindoles has been developed via [3+3] annulation reactions of enals or isatin-derived enals with 2-aminoacrylates under oxidative conditions. In this efficient strategy, the 2-aminoacrylates served as nucleophiles. Modifying the standard...

Stachydrine ameliorates pressure overload-induced diastolic heart failure by suppressing myocardial fibrosis.

American journal of translational research

Chen HH, Zhao P, Zhao WX, Tian J, Guo W, Xu M, Zhang C, Lu R.
PMID: 28979698
Am J Transl Res. 2017 Sep 15;9(9):4250-4260. eCollection 2017.

Stachydrine (Sta), a major constituent of

Two-dimensional interlocked pentagonal bilayer ice: how do water molecules form a hydrogen bonding network?.

Physical chemistry chemical physics : PCCP

Zhu W, Zhao WH, Wang L, Yin D, Jia M, Yang J, Zeng XC, Yuan LF.
PMID: 27063210
Phys Chem Chem Phys. 2016 Jun 07;18(21):14216-21. doi: 10.1039/c5cp07524f. Epub 2016 Apr 11.

The plethora of ice structures observed both in bulk and under nanoscale confinement reflects the extraordinary ability of water molecules to form diverse forms of hydrogen bonding networks. An ideal hydrogen bonding network of water should satisfy three requirements:...

Squaramide-catalysed asymmetric cascade aza-Michael/Michael addition reaction for the synthesis of chiral trisubstituted pyrrolidines.

Organic & biomolecular chemistry

Zhao BL, Lin Y, Yan HH, Du DM.
PMID: 26426388
Org Biomol Chem. 2015 Dec 14;13(46):11351-61. doi: 10.1039/c5ob01749a.

A bifunctional squaramide catalysed aza-Michael/Michael cascade reaction between nitroalkenes and tosylaminomethyl enones or enoates has been developed. This organocatalytic cascade reaction provides easy access to highly functionalized chiral pyrrolidines with a broad substrate scope, giving the desired products in...

[Improved color purity of green OLED device based on Au thin film].

Guang pu xue yu guang pu fen xi = Guang pu

Zhang YF, Zhao SL, Xu Z.
PMID: 25007596
Guang Pu Xue Yu Guang Pu Fen Xi. 2014 Apr;34(4):903-5.

Au was used as anode in some kind of organic electroluminescent devices. Sometimes transparent Au electrodes are required, which means that the thickness of Au electrode should be as thin as possible. Therefore, two metals together forming an electrode...

Low miR-34a and miR-192 are associated with unfavorable prognosis in patients suffering from osteosarcoma.

American journal of translational research

Wang Y, Jia LS, Yuan W, Wu Z, Wang HB, Xu T, Sun JC, Cheng KF, Shi JG.
PMID: 25755833
Am J Transl Res. 2015 Jan 15;7(1):111-9. eCollection 2015.

BACKGROUND: p53 is a well-known tumor suppressor gene involved in malignancy. Many microRNAs (miRNAs) have recently been identified as key components of p53 signaling networks, owing to the central role of p53 in many processes, these p53-regulated miRNAs may...

Organocatalytic silyl transfer from silylborane to nitroalkenes for the synthesis of β-silyl nitroalkanes and β-silyl amines.

Chemical communications (Cambridge, England)

Jiang CR, Zhao CL, Guo HF, He W.
PMID: 27249018
Chem Commun (Camb). 2016 Jun 14;52(50):7862-5. doi: 10.1039/c6cc03840a.

The silylation of a wide array of nitroalkenes is achieved by organocatalysts in yields up to 93%. The reaction is carried out in a toluene/water biphasic solvent under operationally simple conditions. Reduction of the nitro group provides efficient access...

Object Discovery via Cohesion Measurement.

IEEE transactions on cybernetics

Guo G, Wang H, Zhao WL, Yan Y, Li X.
PMID: 28222007
IEEE Trans Cybern. 2018 Mar;48(3):862-875. doi: 10.1109/TCYB.2017.2661995. Epub 2017 Feb 16.

Color and intensity are two important components in an image. Usually, groups of image pixels, which are similar in color or intensity, are an informative representation for an object. They are therefore particularly suitable for computer vision tasks, such...

RETRACTED: Relationship Between Aldosterone Synthase CYP1A1 MspI Gene Polymorphism and Prostate Cancer Risk.

Technology in cancer research & treatment

Ou C, Zhao Y, Liu JH, Zhu B, Li PZ, Zhao HL.
PMID: 26763619
Technol Cancer Res Treat. 2017 Feb;16(1):NP6-NP11. doi: 10.1177/1533034615625519. Epub 2016 Jun 22.

No abstract available.

Hyperthermia combined with 5-fluorouracil promoted apoptosis and enhanced thermotolerance in human gastric cancer cell line SGC-7901.

OncoTargets and therapy

Liu T, Ye YW, Zhu AL, Yang Z, Fu Y, Wei CQ, Liu Q, Zhao CL, Wang GJ, Zhang XF.
PMID: 26064061
Onco Targets Ther. 2015 May 27;8:1265-70. doi: 10.2147/OTT.S78514. eCollection 2015.

This study was designed to investigate the proliferation inhibition and apoptosis-promoting effect under hyperthermia and chemotherapy treatment, at cellular level. Human gastric cancer cell line SGC-7901 was cultivated with 5-fluorouracil at different temperatures. Cell proliferation and apoptosis were determined,...

Showing 1 to 12 of 1767 entries