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Showing 1 to 12 of 185 entries
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Observation of spatial charge and spin correlations in the 2D Fermi-Hubbard model.

Science (New York, N.Y.)

Cheuk LW, Nichols MA, Lawrence KR, Okan M, Zhang H, Khatami E, Trivedi N, Paiva T, Rigol M, Zwierlein MW.
PMID: 27634529
Science. 2016 Sep 16;353(6305):1260-4. doi: 10.1126/science.aag3349.

Strong electron correlations lie at the origin of high-temperature superconductivity. Its essence is believed to be captured by the Fermi-Hubbard model of repulsively interacting fermions on a lattice. Here we report on the site-resolved observation of charge and spin...

Cytotoxicity and Structure-activity Relationships of Naphthyridine Derivatives in Human Cervical Cancer, Leukemia, and Prostate Cancer.

The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology

Hwang YJ, Chung ML, Sohn UD, Im C.
PMID: 24381501
Korean J Physiol Pharmacol. 2013 Dec;17(6):517-23. doi: 10.4196/kjpp.2013.17.6.517. Epub 2013 Dec 16.

Naphthyridine compounds are important, because they exhibit various biological activities including anticancer, antimicrobial, and anti-inflammatory activity. Some naphthyridines have antimitotic effects or demonstrate anticancer activity by inhibiting topoisomerase II. These compounds have been investigated as potential anticancer agents, and...

Association of .

Molecular and clinical oncology

Cheuk IW, Yip SP, Kwong DL, Wu VW.
PMID: 24940494
Mol Clin Oncol. 2014 Jul;2(4):553-558. doi: 10.3892/mco.2014.276. Epub 2014 Apr 14.

Radiation-induced fibrosis is one of the late complications of radiotherapy (RT) for nasopharyngeal carcinoma (NPC). The aim of this study was to investigate the association between X-ray repair cross-complementing protein 1 and 3 (

Observing Oxygen Vacancy Driven Electroforming in Pt-TiO2-Pt Device via Strong Metal Support Interaction.

Nano letters

Jang MH, Agarwal R, Nukala P, Choi D, Johnson AT, Chen IW, Agarwal R.
PMID: 26982325
Nano Lett. 2016 Apr 13;16(4):2139-44. doi: 10.1021/acs.nanolett.5b02951. Epub 2016 Mar 18.

Oxygen vacancy formation, migration, and subsequent agglomeration into conductive filaments in transition metal oxides under applied electric field is widely believed to be responsible for electroforming in resistive memory devices, although direct evidence of such a pathway is lacking....

A rapid and efficient method for uniform gene expression using the barley stripe mosaic virus.

Plant methods

Cheuk A, Houde M.
PMID: 28400854
Plant Methods. 2017 Apr 11;13:24. doi: 10.1186/s13007-017-0175-5. eCollection 2017.

BACKGROUND: The barley stripe mosaic virus (BSMV) has become a popular vector to study gene function in cereals. However, studies have been limited to gene silencing in leaves of barley or wheat. In addition, the method produces high variability...

Axons take a dive: Specialized contacts of serotonergic axons with cells in the walls of the lateral ventricles in mice and humans.

Neurogenesis (Austin, Tex.)

Tong CK, Cebrián-Silla A, Paredes MF, Huang EJ, García-Verdugo JM, Alvarez-Buylla A.
PMID: 26413556
Neurogenesis (Austin). 2014 Jan 01;1(1). doi: 10.4161/neur.29341.

In the walls of the lateral ventricles of the adult mammalian brain, neural stem cells (NSCs) and ependymal (E1) cells share the apical surface of the ventricular-subventricular zone (V-SVZ). In a recent article, we show that supraependymal serotonergic (5HT)...

Observation of 2D Fermionic Mott Insulators of ^{40}K with Single-Site Resolution.

Physical review letters

Cheuk LW, Nichols MA, Lawrence KR, Okan M, Zhang H, Zwierlein MW.
PMID: 27341242
Phys Rev Lett. 2016 Jun 10;116(23):235301. doi: 10.1103/PhysRevLett.116.235301. Epub 2016 Jun 10.

We report on the site-resolved observation of characteristic states of the two-dimensional repulsive Fermi-Hubbard model, using ultracold ^{40}K atoms in an optical lattice. By varying the tunneling, interaction strength, and external confinement, we realize metallic, Mott-insulating, and band-insulating states....

Quantum-gas microscope for fermionic atoms.

Physical review letters

Cheuk LW, Nichols MA, Okan M, Gersdorf T, Ramasesh VV, Bakr WS, Lompe T, Zwierlein MW.
PMID: 26024169
Phys Rev Lett. 2015 May 15;114(19):193001. doi: 10.1103/PhysRevLett.114.193001. Epub 2015 May 13.

We realize a quantum-gas microscope for fermionic ^{40}K atoms trapped in an optical lattice, which allows one to probe strongly correlated fermions at the single-atom level. We combine 3D Raman sideband cooling with high-resolution optics to simultaneously cool and...

Sintering dense nanocrystalline ceramics without final-stage grain growth.

Nature

Chen IW, Wang XH.
PMID: 10724165
Nature. 2000 Mar 09;404(6774):168-71. doi: 10.1038/35004548.

Sintering is the process whereby interparticle pores in a granular material are eliminated by atomic diffusion driven by capillary forces. It is the preferred manufacturing method for industrial ceramics. The observation of Burke and Coble that certain crystalline granular...

Nucleation and growth mechanism of ferroelectric domain-wall motion.

Nature

Shin YH, Grinberg I, Chen IW, Rappe AM.
PMID: 17922002
Nature. 2007 Oct 18;449(7164):881-4. doi: 10.1038/nature06165. Epub 2007 Oct 07.

The motion of domain walls is critical to many applications involving ferroelectric materials, such as fast high-density non-volatile random access memory. In memories of this sort, storing a data bit means increasing the size of one polar region at...

Medial preoptic microimplants of the antiestrogen, keoxifene, affect luteinizing hormone-releasing hormone mRNA levels, median eminence luteinizing hormone-releasing hormone concentrations and luteinizing hormone release in ovariectomized, estrogen-treated rats.

Journal of neuroendocrinology

Petersen SL, Cheuk C, Hartman RD, Barraclough CA.
PMID: 19210441
J Neuroendocrinol. 1989 Aug 01;1(4):279-83. doi: 10.1111/j.1365-2826.1989.tb00116.x.

Abstract We examined the temporal changes in plasma luteinizing hormone (LH) levels, median eminence luteinizing hormone-releasing hormone (LHRH) concentrations and LHRH mRNA levels in estrogen-treated, ovariectomized rats with empty or antiestrogen- containing microcannulae stereotaxically implanted into the medial preoptic...

Quantitative Structure Activity Relationship between Diazabicyclo[4.2.0]octanes Derivatives and Nicotinic Acetylcholine Receptor Agonists.

The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology

Kim EA, Jung KC, Sohn UD, Im C.
PMID: 19885027
Korean J Physiol Pharmacol. 2009 Feb;13(1):55-9. doi: 10.4196/kjpp.2009.13.1.55. Epub 2009 Feb 28.

Three dimensional quantitative structure activity relationship between diazabicyclo[4.2.0]octanes and nicotinic acetylcholine receptor (halpha4beta2 and halpha3beta4) agonists was studied using comparative molecular field analysis (CoMFA) and comparative molecular similarity indices analysis (CoMSIA). From 11 CoMFA and CoMSIA models, CoMSIA with...

Showing 1 to 12 of 185 entries