We present the results of a multi-frequency analysis of the structural variability in the parsec-scale jet of the blazar S5 1803+784. More than 90 epochs of observations at 6 frequencies from 1.6 GHz up to 22 GHz have been combined and analyzed. We discuss an alternative jet model for the source. In contrast to previously discussed motion scenarios for S5 1803+784, we find that the jet structur...

The BL Lacertae object S5 1803+784 has been monitored with very long baseline interferometry at λ = 3.6 cm in 43 epochs between 1986.21 and 1993.95. The motivation of this work is to obtain statistically meaningful data with which to study the short-term structural variability in the source on monthly time-scales. We present a detailed analysis of the structural evolution seen in the milliarcse...

OBJECTIVE To clarify the use of antibiotics in our hospital and to guide the prophylactic use in future hepatobiliary surgical procedures. METHODOLOGY A retrospective review of patients who underwent hepatobiliary surgery from January 2011 to June 2011 was included. Data were collected, and surgical site infection (SSI) was defined by the criteria of Center for Disease Control and Prevention....

Reseña de: Stratis Papaioannou (ed.), The Oxford Handbook of Byzantine Literature, Nueva York, University Press, 2021, 784 páginas, ISBN 978-0199351763, DOI https://doi.org/10.1093/ oxfordhb/9780199351763.001.0001

Cooperative roles of c-Abl and Cdk5 in regulation of p53 in response to oxidative stress. (Running title : Diverse molecular mechanisms in p53 regulation) Jong-Hee Lee*‡, Min-Woo Jeong*‡, Wanil Kim‡, Yoon Ha Choi‡, and Kyong-Tai Kim‡** From the ‡Department of Life Science, Division of Molecular and Life Science, Systems-Biodynamics NCRC, Pohang University of Science and Technology, Pohang, 790-...

A memristive neural network computing engine based on CMOS-compatible charge-trap transistor (CTT) is proposed in this paper. CTT devices are used as analog multipliers. Compared to digital multipliers, CTT-based analog multipliers show dramatic area and power reduction (>100x). The proposed memristive computing engine is composed of a scalable CTT multiplier array and energy efficient analog-d...

On 18 November 1993, we observed the QSO 1150+812 and the BL Lac object 1803+784, nearly 15 apart on the sky, with a VLBI array, simultaneously recording at 8.4 and 2.3 GHz. Using difference astrometry techniques, we determined the coordinates of 1803+784 relative to those of 1150+812 to be ∆α = 6 7 33. 18469± 0. 00020 ∆δ = −2 30′ 25. 13557± 0. 00075 These standard errors contain estimated cont...