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Showing 1 to 12 of 192 entries
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The Digital Distribution of Public Health News Surrounding the Human Papillomavirus Vaccination: A Longitudinal Infodemiology Study.

JMIR public health and surveillance

Mahoney LM, Tang T, Ji K, Ulrich-Schad J.
PMID: 27227125
JMIR Public Health Surveill. 2015 Mar 18;1(1):e2. doi: 10.2196/publichealth.3310. eCollection 2015.

BACKGROUND: New media changes the dissemination of public health information and misinformation. During a guest appearance on the Today Show, US Representative Michele Bachmann claimed that human papillomavirus (HPV) vaccines could cause "mental retardation".OBJECTIVE: The purpose of this study...

Analysis of solitary wave impulses in granular chains using ultrasonic excitation.

Physical review. E

Yang J, Hutchins DA, Akanji O, Thomas PJ, Davis LA, Harput S, Gelat P, Freear S, Saffari N.
PMID: 27415349
Phys Rev E. 2016 Jun;93(6):063002. doi: 10.1103/PhysRevE.93.063002. Epub 2016 Jun 10.

The propagation of broad bandwidth solitary wave impulses, generated within granular chains by narrow bandwidth ultrasonic excitation, is studied in detail. Theoretical predictions are compared to experimental results. It is demonstrated that the observed effects result from a sum...

Evaluation of the Management of Acute Venous Thromboembolism and Its Outcomes: One Institution's Experience.

P & T : a peer-reviewed journal for formulary management

Williams C, Koo J, Hass J.
PMID: 19749995
P T. 2008 Feb;33(2):107-17.

BACKGROUND: There is often a divergence between standardized practice guidelines and actual practice. Such deviations can result in adverse outcomes. In addition, studies that identify independent risk factors associated with bleeding or recurrent venous thromboembolism (VTE) are often limited.OBJECTIVE:...

Ultra-high-speed wavelength conversion in a silicon photonic chip.

Optics express

Hu H, Ji H, Galili M, Pu M, Peucheret C, Christian H Mulvad H, Yvind K, Hvam JM, Jeppesen P, Oxenløwe LK.
PMID: 21996996
Opt Express. 2011 Oct 10;19(21):19886-94. doi: 10.1364/OE.19.019886.

We have successfully demonstrated all-optical wavelength conversion of a 640-Gbit/s line-rate return-to-zero differential phase-shift keying (RZ-DPSK) signal based on low-power four wave mixing (FWM) in a silicon photonic chip with a switching energy of only ~110 fJ/bit. The waveguide...

Ultra-high-speed optical serial-to-parallel data conversion by time-domain optical Fourier transformation in a silicon nanowire.

Optics express

Mulvad HC, Palushani E, Hu H, Ji H, Lillieholm M, Galili M, Clausen AT, Pu M, Yvind K, Hvam JM, Jeppesen P, Oxenløwe LK.
PMID: 22274110
Opt Express. 2011 Dec 12;19(26):B825-35. doi: 10.1364/OE.19.00B825.

We demonstrate conversion from 64 × 10 Gbit/s optical time-division multiplexed (OTDM) data to dense wavelength division multiplexed (DWDM) data with 25 GHz spacing. The conversion is achieved by time-domain optical Fourier transformation (OFT) based on four-wave mixing (FWM)...

Attributable causes of breast cancer and ovarian cancer in china: reproductive factors, oral contraceptives and hormone replacement therapy.

Chinese journal of cancer research = Chung-kuo yen cheng yen chiu

Li L, Ji J, Wang JB, Niyazi M, Qiao YL, Boffetta P.
PMID: 23359757
Chin J Cancer Res. 2012 Mar;24(1):9-17. doi: 10.1007/s11670-012-0009-y.

OBJECTIVE: To provide an evidence-based, consistent assessment of the burden of breast cancer attributable to reproductive factors (RFs, including nulliparity, mean number of children, age at first birth and breastfeeding), use of oral contraceptives (OCs, restricted to the age...

Risk factors for recurrence of symptomatic common bile duct stones after cholecystectomy.

Gastroenterology research and practice

Oak JH, Paik CN, Chung WC, Lee KM, Yang JM.
PMID: 22991508
Gastroenterol Res Pract. 2012;2012:417821. doi: 10.1155/2012/417821. Epub 2012 Sep 06.

Purpose. The recurrence of CBD stone is still observed in a considerable number of patients. The study was to evaluate the risk factors for recurrence of symptomatic CBD stone in patients who underwent cholecystectomy after the removal of CBD...

Evaporation and fate of dilatonic black holes.

Physical review. D, Particles and fields

Koga JI, Maeda KI.
PMID: 10019247
Phys Rev D Part Fields. 1995 Dec 15;52(12):7066-7079. doi: 10.1103/physrevd.52.7066.

No abstract available.

Far-infrared absorption by bulk high-Tc superconductors using an optically pumped CH3OH laser.

Physical review. B, Condensed matter

Isida K, Kawate E, Miki Y, Okaji M, Onae A, Tamegai T.
PMID: 9997115
Phys Rev B Condens Matter. 1991 Jun 01;43(16):12976-12979. doi: 10.1103/physrevb.43.12976.

No abstract available.

Frequency and Phase Characteristics of Candle Flame Oscillation.

Scientific reports

Chen T, Guo X, Jia J, Xiao J.
PMID: 30674950
Sci Rep. 2019 Jan 23;9(1):342. doi: 10.1038/s41598-018-36754-w.

The combustion of candles exhibits a variety of dynamical behaviors. Binding several candles together will result in flickering of candle flames, which is generally described as a nonlinear oscillator. The impact on the frequency of the flame by several...

Photocatalytic Degradation of Tetracycline Hydrochloride via a CdS-TiO₂ Heterostructure Composite under Visible Light Irradiation.

Nanomaterials (Basel, Switzerland)

Li W, Ding H, Ji H, Dai W, Guo J, Du G.
PMID: 29890710
Nanomaterials (Basel). 2018 Jun 08;8(6). doi: 10.3390/nano8060415.

A photocatalytic active CdS-TiO₂ heterostructure composite was prepared by hydrothermal method and its morphology and properties were characterized. Results indicate that the CdS nanoparticles deposited on the surface of a TiO₂ nanoparticles, which was in anatase phase. The particle...

Suppression of Heating in Quantum Spin Clusters under Periodic Driving as a Dynamic Localization Effect.

Physical review letters

Ji K, Fine BV.
PMID: 30118253
Phys Rev Lett. 2018 Aug 03;121(5):050602. doi: 10.1103/PhysRevLett.121.050602.

We investigate numerically and analytically the heating process in ergodic clusters of interacting spins 1/2 subjected to periodic pulses of an external magnetic field. Our findings indicate that there is a threshold for the pulse strength below which the...

Showing 1 to 12 of 192 entries