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Showing 1 to 12 of 1867 entries
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Annular focusing lens based on transformation optics.

Journal of the Optical Society of America. A, Optics, image science, and vision

Xu BB, Jiang WX, Yu GX, Cui TJ.
PMID: 24979647
J Opt Soc Am A Opt Image Sci Vis. 2014 May 01;31(5):1135-40. doi: 10.1364/JOSAA.31.001135.

We propose and design a kind of annular focusing lens based on transformation optics. Based on the method of eigen-mode expansions, closed-form expressions are derived to analyze the proposed annular lens rigorously. We show that the annular lens has...

Detect AD Patients by Using EEG Coherence Analysis.

Journal of medical engineering

Ho MC, Chen TC, Huang CF, Yu CH, Chen JM, Huang RY, Ho HC, Liu CJ.
PMID: 27006929
J Med Eng. 2014;2014:236734. doi: 10.1155/2014/236734. Epub 2014 Feb 10.

The purpose of this study is to discriminate mild Alzheimer's disease (AD) patients from the normal aging. The EEG coherence was applied to analyze the data from auditory oddball paradigm to discriminate the differences of corticocortical connections between mild...

Differential Proteomic Analysis of Human Placenta-Derived Mesenchymal Stem Cells Cultured on Normal Tissue Culture Surface and Hyaluronan-Coated Surface.

Stem cells international

Wong TY, Chen YH, Liu SH, Solis MA, Yu CH, Chang CH, Huang LL.
PMID: 27057169
Stem Cells Int. 2016;2016:2809192. doi: 10.1155/2016/2809192. Epub 2015 Dec 29.

Our previous results showed that hyaluronan (HA) preserved human placenta-derived mesenchymal stem cells (PDMSC) in a slow cell cycling mode similar to quiescence, the pristine state of stem cells in vivo, and HA was found to prevent murine adipose-derived...

Astrocyte-elevated gene-1 confers resistance to pemetrexed in non-small cell lung cancer by upregulating thymidylate synthase expression.

Oncotarget

Chen CY, Chen YY, Chen JJW, Chen KY, Ho CC, Shih JY, Chang YL, Yu CJ, Yang PC.
PMID: 28977913
Oncotarget. 2017 Jun 28;8(37):61901-61916. doi: 10.18632/oncotarget.18717. eCollection 2017 Sep 22.

Previous studies have suggested that astrocyte-elevated gene-1 (AEG-1) contributes to the mechanisms of resistance to various chemotherapeutics. In this study, we investigated whether AEG-1 expression level correlated with that of thymidylate synthase (TS), as higher TS expression is known...

Fully variable elliptical phase retarder composed of two linear phase retarders.

The Review of scientific instruments

Yu CJ.
PMID: 27036818
Rev Sci Instrum. 2016 Mar;87(3):035106. doi: 10.1063/1.4943223.

In this study, a fully variable elliptical phase retarder was developed by combining a variable linear phase retarder and a half-wave plate. All three polarization parameters of the elliptical phase retarder (elliptical phase retardation γ, azimuth angle θ, and...

Demonstration of a time-resolved x-ray scattering instrument utilizing the full-repetition rate of x-ray pulses at the Pohang Light Source.

The Review of scientific instruments

Jo W, Eom I, Landahl EC, Lee S, Yu CJ.
PMID: 27036819
Rev Sci Instrum. 2016 Mar;87(3):035107. doi: 10.1063/1.4943304.

We report on the development of a new experimental instrument for time-resolved x-ray scattering (TRXS) at the Pohang Light Source (PLS-II). It operates with a photon energy ranging from 5 to 18 keV. It is equipped with an amplified...

Chirality control of quadruple helixes of metal strings by peripheral chiral ligands.

Chemistry, an Asian journal

Yu CH, Kuo MS, Chuang CY, Lee GH, Hua SA, Jin BY, Peng SM.
PMID: 25146243
Chem Asian J. 2014 Nov;9(11):3111-5. doi: 10.1002/asia.201402823. Epub 2014 Aug 21.

Chirality control of helixes with the Δ (P) or Λ (M) form is interesting in various fields such as extended metal atom chains (EMACs), in which the metal backbones are helically wrapped by four ligands. Herein, we report two...

Balanced ratio of plasma to packed red blood cells improves outcomes in massive transfusion: A large multicenter study.

Experimental and therapeutic medicine

Yang JC, Xu CX, Sun Y, Dang QL, Li L, Xu YG, Song YJ, Yan H.
PMID: 26170909
Exp Ther Med. 2015 Jul;10(1):37-42. doi: 10.3892/etm.2015.2461. Epub 2015 Apr 30.

Resuscitation with the early administration of plasma can improve the survival of patients undergoing surgery or trauma patients who require massive transfusion. To ascertain the optimal ratio of fresh frozen plasma (FFP) to packed red blood cells (pRBCs) in...

Direct medical cost of newly diagnosed stable coronary artery disease in Hong Kong.

Heart Asia

Lee VW, Lam YY, Yuen AC, Cheung SY, Yu CM, Yan BP.
PMID: 27326062
Heart Asia. 2013 Jan 02;5(1):1-6. doi: 10.1136/heartasia-2012-010168. eCollection 2013.

BACKGROUND: Stable coronary artery disease (CAD) affects approximately 7% of the population of Hong Kong and is associated with substantial healthcare costs.OBJECTIVE: We aimed to evaluate the first-year direct medical cost for a patient with newly diagnosed stable CAD...

Current endovascular therapy for lower extremity peripheral arterial disease: indications, outcomes and modalities.

Heart Asia

Yan BP, Kiernan TJ, Lam YY, Yu CM.
PMID: 27325929
Heart Asia. 2009 Jan 01;1(1):51-7. doi: 10.1136/ha.2009.000976. eCollection 2009.

Atherosclerosis of the lower extremities frequently leads to lifestyle-restricting claudication and can cause critical limb ischaemia (rest pain, non-healing ulcer, or gangrene). The prevalence of peripheral arterial disease (PAD) is rising in line with an ageing population. In the...

Enantioselective Synthesis of Dioxatriquinane Structural Motifs for HIV-1 Protease Inhibitors Using a Cascade Radical Cyclization.

Tetrahedron letters

Ghosh AK, Xu CX, Osswald HL.
PMID: 26185337
Tetrahedron Lett. 2015 Jun 03;56(23):3314-3317. doi: 10.1016/j.tetlet.2015.01.019.

Synthesis of novel HIV-1 protease inhibitors incorporating dioxatriquinane-derived P2-ligands is described. The tricyclic ligand alcohol contains five contiguous chiral centers. The ligand alcohols were prepared in optically active form by an enzymatic asymmetrization of mesodiacetate, cascade radical cyclization, and...

Determination of Leaf Water Content by Visible and Near-Infrared Spectrometry and Multivariate Calibration in .

Frontiers in plant science

Jin X, Shi C, Yu CY, Yamada T, Sacks EJ.
PMID: 28579992
Front Plant Sci. 2017 May 19;8:721. doi: 10.3389/fpls.2017.00721. eCollection 2017.

Leaf water content is one of the most common physiological parameters limiting efficiency of photosynthesis and biomass productivity in plants including

Showing 1 to 12 of 1867 entries