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Showing 1 to 12 of 13851 entries
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Modeling STEM learning design competence through discourse analysis

Theoretical frames STEM

Wu B.
GSID: 4YfnxmiCvQwJ
X Peng, B Wu, Y Hu - 2020 IEEE 20th International Conference …, 2020 - ieeexplore.ieee.org

… Epistemic frame theory suggests that every community of practice has a culture and that each culture has a grammar: a network composed of skills, knowledge, values, identify and …

How to foster pre-service teachers' STEM learning design expertise through virtual internship: A design-based research

STEM training programs

Wu B.
GSID: Ta5q1bQ8a7sJ
B Wu, X Peng, Y Hu - Educational Technology Research and …, 2021 - Springer

… This study contributes to our understanding of how to design and implement an effective online training program that fosters the development of STEM learning design expertise. …

[In memoriam of professor Miron Samoilovich Lur'e].

Vestnik otorinolaringologii

Nazarova GF, Preobrazhenskii IuB, Bril' FD.
PMID: 4904831
Vestn Otorinolaringol. 1968 Nov-Dec;30(6):117-8.

No abstract available.

Opinions on the new blood pressure target in chronic kidney disease recommended by 2013 ESH/ESC guidelines for the management of arterial hypertension.

Journal of hypertension

Zhang T, Fu B.
PMID: 24096261
J Hypertens. 2013 Nov;31(11):2320-1. doi: 10.1097/HJH.0b013e3283659ff6.

No abstract available.

Culture conditions for bovine embryonic stem cell-like cells isolated from blastocysts after external fertilization.

Cytotechnology

Jin M, Wu A, Dorzhin S, Yue Q, Ma Y, Liu D.
PMID: 22438181
Cytotechnology. 2012 Aug;64(4):379-89. doi: 10.1007/s10616-011-9408-z. Epub 2012 Mar 22.

Although isolation and characterization of embryonic stem cells have been successful in cattle, maintenance of bovine embryonic stem cells in culture remains difficult. In this study, we compared different methods of cell passaging, feeder cell layers and medium conditions...

Measurement and reconstruction of three-dimensional configurations of specimen with tiny scattering based on digital holographic tomography.

Applied optics

Chen X, Zhao J, Wang J, Di J, Wu B, Liu J.
PMID: 24979439
Appl Opt. 2014 Jun 20;53(18):4044-8. doi: 10.1364/AO.53.004044.

Based on digital holographic tomography, a method for measuring the three-dimensional (3D) configuration of a transparent object with tiny scattering is proposed. By rotating a Michelson interferometer around static specimen, a series of the phase change distributions of reconstructed...

A case of accidental intrathecal injection of a large dose of ropivacaine during cesarean section.

International journal of clinical and experimental medicine

Yuan YP, Chen HF, Yang C, Tian FB, Huang SQ.
PMID: 25232443
Int J Clin Exp Med. 2014 Aug 15;7(8):2383-5. eCollection 2014.

Continuous spinal anesthesia may provide excellent labor analgesia. The incidence of accidental intrathecal injection of megadose of ropivacaine, as one of the possible complications during cesarean section, is very rare. Present case report provides reference to clinical practice.

Aroma enhancement and enzymolysis regulation of grape wine using β-glycosidase.

Food science & nutrition

Zhu FM, Du B, Li J.
PMID: 24804072
Food Sci Nutr. 2014 Mar;2(2):139-45. doi: 10.1002/fsn3.84. Epub 2014 Jan 13.

Adding β-glycosidase into grape wine for enhancing aroma was investigated using gas chromatography-mass spectrometry (GC-MS) and Kramer sensory evaluation. Compared with the extract from control wines, the extract from enzyme-treated wines increased more aromatic compounds using steam distillation extraction...

Sn-doped TiO2 nanotubes as superior anode materials for sodium ion batteries.

Chemical communications (Cambridge, England)

Yan D, Yu C, Bai Y, Zhang W, Chen T, Hu B, Sun Z, Pan L.
PMID: 25875035
Chem Commun (Camb). 2015 May 14;51(39):8261-4. doi: 10.1039/c4cc10020d.

Sn-doped TiO2 nanotubes were employed as anodes for sodium ion batteries. The electrodes exhibit a high maximum charge capacity of 257 mA h g(-1) after 50 cycles at a current density of 50 mA g(-1) with good rate capability...

Design of short wave infrared imaging spectrometer system based on CDP.

Optics express

Zhang Z, Hu B, Yin Q, Yu T, Li S, Gao X, Zhang H.
PMID: 26698458
Opt Express. 2015 Nov 16;23(23):29758-63. doi: 10.1364/OE.23.029758.

A compact static infrared snapshot imaging spectrometer (ISIS) is designed in order to satisfy the application requirements of real-time spectral imaging for the moving targets. It consists of a CDP (crossed dispersion prism), an imaging lens, and a detector....

Transcriptome-Guided Mining of Genes Involved in Crocin Biosynthesis.

Frontiers in plant science

Ji A, Jia J, Xu Z, Li Y, Bi W, Ren F, He C, Liu J, Hu K, Song J.
PMID: 28443112
Front Plant Sci. 2017 Apr 11;8:518. doi: 10.3389/fpls.2017.00518. eCollection 2017.

No abstract available.

Photocatalytic Radical Trifluoromethylation/Cyclization Cascade: Synthesis of CF3-Containing Pyrazolines and Isoxazolines.

Organic letters

Wei Q, Chen JR, Hu XQ, Yang XC, Lu B, Xiao WJ.
PMID: 26332823
Org Lett. 2015 Sep 18;17(18):4464-7. doi: 10.1021/acs.orglett.5b02118. Epub 2015 Sep 02.

A general visible light induced photoredox-catalyzed radical trifluoromethylation/cyclization cascade of β-aryl-β,γ-unsaturated hydrazones and oximes is described. The protocol enables an efficient access to various densely functionalized and biologically important CF3-containing dihydropyrazoles and isoxazolines with generally high yields.

Showing 1 to 12 of 13851 entries