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Showing 1 to 12 of 516 entries
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Ginsenoside fractions regulate the action of monocytes and their differentiation into dendritic cells.

Journal of ginseng research

Lee YJ, Son YM, Gu MJ, Song KD, Park SM, Song HJ, Kang JS, Woo JS, Jung JH, Yang DC, Han SH, Yun CH.
PMID: 25535474
J Ginseng Res. 2015 Jan;39(1):29-37. doi: 10.1016/j.jgr.2014.07.003. Epub 2014 Aug 07.

BACKGROUND: Panax ginseng (i.e., ginseng) root is extensively used in traditional oriental medicine. It is a modern pharmaceutical reagent for preventing various human diseases such as cancer. Ginsenosides-the major active components of ginseng-exhibit immunomodulatory effects. However, the mechanism and...

Mode-locked, 1.94-μm, all-fiberized laser using WS₂ based evanescent field interaction.

Optics express

Jung M, Lee J, Park J, Koo J, Jhon YM, Lee JH.
PMID: 26367658
Opt Express. 2015 Jul 27;23(15):19996-20006. doi: 10.1364/OE.23.019996.

We demonstrate the use of an all-fiberized, mode-locked 1.94 μm laser with a saturable absorption device based on a tungsten disulfide (WS2)-deposited side-polished fiber. The WS2 particles were prepared via liquid phase exfoliation (LPE) without centrifugation. A series of...

A Preliminary Exploration of Former Smokers Enrolled in an Internet Smoking Cessation Program.

JMIR research protocols

Cha S, Cohn AM, Elmasry H, Graham AL.
PMID: 27302500
JMIR Res Protoc. 2016 Jun 14;5(2):e119. doi: 10.2196/resprot.5542.

BACKGROUND: Internet interventions may have an important role to play in helping self-quitters maintain an initial period of abstinence. Little is known about the characteristics and utilization patterns of former smokers who use Internet cessation programs.OBJECTIVE: The overarching aim...

Plasma functionalization for cyclic transition between neutral and charged excitons in monolayer MoS2.

Scientific reports

Kim Y, Jhon YI, Park J, Kim C, Lee S, Jhon YM.
PMID: 26898238
Sci Rep. 2016 Feb 22;6:21405. doi: 10.1038/srep21405.

Monolayer MoS2 (1L-MoS2) has photoluminescence (PL) properties that can greatly vary via transition between neutral and charged exciton PLs depending on carrier density. Here, for the first time, we present a chemical doping method for reversible transition between neutral...

Human Hair Follicle Cells with the Cell Surface Marker CD34 Can Regenerate New Mouse Hair Follicles and Located in the Outer Root Sheath of Immunodeficient Nude Mice.

International journal of stem cells

Lee SH, Chung MK, Sohn YJ, Lee YS, Kang KS.
PMID: 24855511
Int J Stem Cells. 2008 Nov;1(1):70-81. doi: 10.15283/ijsc.2008.1.1.70.

BACKGROUND AND OBJECTIVES: The bulge region of hair follicle has been reported as a putative reservoir of hair follicle stem cells. The purpose of this study was to compare hair follice CD34 negative (CD34-) cell with CD34 positive (CD34+)...

Alcohol Use Disorders: Translational Utility of DSM-IV Liabilities to the DSM-5 System.

Addictive disorders & their treatment

Kiselica AM, Cohn AM, Hagman BT.
PMID: 25750592
Addict Disord Their Treat. 2015 Mar;14(1):53-59. doi: 10.1097/ADT.0000000000000036.

OBJECTIVES: Young adults have some of the highest rates of problem drinking and alcohol use disorders (AUDs) relative to any other age. However, recent evidence suggests that the DSM-IV hierarchical classification system of AUDs does not validly represent symptoms...

Nanofluidics of Single-Crystal Diamond Nanomechanical Resonators.

Nano letters

Kara V, Sohn YI, Atikian H, Yakhot V, Lončar M, Ekinci KL.
PMID: 26509332
Nano Lett. 2015 Dec 09;15(12):8070-6. doi: 10.1021/acs.nanolett.5b03503. Epub 2015 Nov 02.

Single-crystal diamond nanomechanical resonators are being developed for countless applications. A number of these applications require that the resonator be operated in a fluid, that is, a gas or a liquid. Here, we investigate the fluid dynamics of single-crystal...

Gender Differences in Age-Related Striatal Dopamine Depletion in Parkinson's Disease.

Journal of movement disorders

Lee JJ, Ham JH, Lee PH, Sohn YH.
PMID: 26413240
J Mov Disord. 2015 Sep;8(3):130-5. doi: 10.14802/jmd.15031. Epub 2015 Sep 10.

OBJECTIVE: Gender differences are a well-known clinical characteristic of Parkinson's disease (PD). In-vivo imaging studies demonstrated that women have greater striatal dopamine transporter (DAT) activity than do men, both in the normal population and in PD patients. We hypothesize...

2D MATERIALS. Observation of tunable band gap and anisotropic Dirac semimetal state in black phosphorus.

Science (New York, N.Y.)

Kim J, Baik SS, Ryu SH, Sohn Y, Park S, Park BG, Denlinger J, Yi Y, Choi HJ, Kim KS.
PMID: 26273052
Science. 2015 Aug 14;349(6249):723-6. doi: 10.1126/science.aaa6486.

Black phosphorus consists of stacked layers of phosphorene, a two-dimensional semiconductor with promising device characteristics. We report the realization of a widely tunable band gap in few-layer black phosphorus doped with potassium using an in situ surface doping technique....

A Compact, High Power Capable, and Tunable High Directivity Microstrip Coupler.

IEEE transactions on microwave theory and techniques

Sohn SM, Gopinath A, Vaughan JT.
PMID: 28303035
IEEE Trans Microw Theory Tech. 2016 Oct;64(10):3217-3223. doi: 10.1109/TMTT.2016.2602835. Epub 2016 Sep 12.

A coupler is an indispensable component to sample the forward and reflected power for the real-time radio frequency (RF) power monitoring system. The directivity of a coupler is a critical factor to achieve accurate RF power measurements. This paper...

Crystal structures and color properties of new complex perovskite oxynitrides AMg0.2Ta0.8O2.6N0.4 (A = Sr, Ba).

Dalton transactions (Cambridge, England : 2003)

Moon KH, Kim JM, Sohn Y, Cho DW, Kim YI, Avdeev M.
PMID: 26918699
Dalton Trans. 2016 Apr 07;45(13):5614-21. doi: 10.1039/c6dt00310a. Epub 2016 Feb 26.

New complex perovskite oxynitrides AMg0.2Ta0.8O2.6N0.4 (A = Sr, Ba) were synthesized by reacting A5Ta4O15 with MgCl2 in flowing NH3. The formation of AMg0.2Ta0.8O2.6N0.4 can be described as the cooperative insertion of Mg(2+) + 2N(3-) and the release of 2O(2-)...

Femtosecond harmonic mode-locking of a fiber laser at 3.27 GHz using a bulk-like, MoSe2-based saturable absorber.

Optics express

Koo J, Park J, Lee J, Jhon YM, Lee JH.
PMID: 27409880
Opt Express. 2016 May 16;24(10):10575-89. doi: 10.1364/OE.24.010575.

We experimentally demonstrate the use of a bulk-like, MoSe2-based saturable absorber (SA) as a passive harmonic mode-locker for the production of femtosecond pulses from a fiber laser at a repetition rate of 3.27 GHz. By incorporating a bulk-like, MoSe2/PVA-composite-deposited...

Showing 1 to 12 of 516 entries