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Lim, S.,Lee, D. R.,Cifelli, R.,Hwang, S. H. Springer Science + Business Media 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.5
This paper characterizes the applied science issues related to radar-rainfall estimation in the complex mountainous terrain and presents Quantitative Precipitation Estimation (QPE) retrieved from X-band dual-polarization radar measurements. Data collected from the Hydrometeorology Testbed (HMT) in orographic (mountainous) terrain of California are used to develop and test the QPE methodology. Based on retrieved specific differential phase, rainfall estimation was performed using data obtained from the NOAA polarimetric X-band radar and evaluated using observations of the HMT ground instruments, including rain gauges. The results indicate that the technique works well for the limited number of events that are described herein.
Lee, N.J.,Song, J.M.,Cho, H.J.,Sung, Y.M.,Lee, T.,Chung, A.,Hong, S.H.,Cifelli, J.L.,Rubinshtein, M.,Habib, L.K.,Capule, C.C.,Turner, R.S.,Pak, D.T.S.,Yang, J.,Hoe, H.S. Elsevier Science Publishers B.V 2016 Biochimica et biophysica acta Vol.1862 No.2
Our recent study demonstrated that an amyloid-β binding molecule, BTA-EG4, increases dendritic spine number via Ras-mediated signaling. To potentially optimize the potency of the BTA compounds, we synthesized and evaluated an amyloid-β binding analog of BTA-EG4 with increased solubility in aqueous solution, BTA-EG6. We initially examined the effects of BTA-EG6 on dendritic spine formation and found that BTA-EG6-treated primary hippocampal neurons had significantly increased dendritic spine number compared to control treatment. In addition, BTA-EG6 significantly increased the surface level of AMPA receptors. Upon investigation into the molecular mechanism by which BTA-EG6 promotes dendritic spine formation, we found that BTA-EG6 may exert its effects on spinogenesis via RasGRF1-ERK signaling, with potential involvement of other spinogenesis-related proteins such as Cdc42 and CDK5. Taken together, our data suggest that BTA-EG6 boosts spine and synapse number, which may have a beneficial effect of enhancing neuronal and synaptic function in the normal healthy brain.