40,572 research outputs found
American Image of President Park Chung-hee of the Republic of Korea: Park Chung-heeas Death and American Newspapers
No full textSouth Korea s President Park Chung-hee was still a controversial figure in Korean history He was a man who achieved the economic miracle of South Korea while adopting repressive measures to suspend the democracy and human Korea The nostalgia of Park s era also remains Park receives fairly good evaluations from the world American newspapers at the death of Park Chung-hee provided the objective views on Park Chung-hee Throughout the newspapers editorials Park was the man who brought the economic miracle of South Korea and a good ally for the U S at the time of Cold War On the other hand he was another dictator who enjoyed autocratic rule under the U S protection The American views provide the foundation to evaluate Park Chung-hee of toda
Crime and Inflation in U. S. Cities
No full textObjectivesThe current study replicates prior national-level research on the relationship between crimes committed for monetary gain and inflation in a sample of 17 U. S. cities between 1960 and 2013. Methods A random coefficients model is used to estimate the effects of inflation on the change in acquisitive crime over time, controlling for other influences. Results The estimates yield significant effects of inflation on acquisitive crime rates in the 17 cities. City-specific coefficients reveal nontrivial variation across the cities in the significance, size, and impact of inflation on acquisitive crime.Conclusions Continued low inflation rates should restrain future crime increases in many US cities. U. S. monetary policy should be evaluated with respect to its effect on crime.Accepted Author ManuscriptOLD Urban Renewal and Housin
Effectiveness of plant-derived sorbents for the remediation of low-energy intertidal wetlands contaminated by oil spills
No full textThe use of plant-derived sorbent was investigated as a remediation strategy for low-energy intertidal wetlands contaminated by crude oil spills. Effectiveness of plant-derived sorbent as a wicking agent was evaluated in microcosms simulating intertidal wetlands. Microcosms were designed to impose three different oil penetration depths (0.25, 0.5, and 1.0 cm), two different tidal amplitudes (±5 and ±10 cm above oil-contaminated surface), and two different types of sorbents (raw bagasse and hydrophobic-treated bagasse). We observed that the use of plant-derived sorbent was beneficial not only in removing oil but also in preventing further contamination. Oil penetration depth and tidal amplitude both negatively influenced the effectiveness of the sorbent. Effectiveness of the hydrophobic-treated sorbent was always higher than that of untreated one at any given oil penetration depth and tidal amplitude. Effectiveness of hydrophobic-treated sorbent was relatively low compared to that of raw bagasse. The most plausible explanation is that oil wicking mainly occurred during low tide. From a cost-effectiveness point of view, we suggest the use of raw bagasse immediately after an oil spill for remediation of low-energy intertidal wetlands. The observed results imply that this technique has potential to stimulate biodegradation by wicking oil out of contaminated intertidal wetlands subsurface to the aerobic zone where biodegradation can take place. © Springer Science+Business Media B.V. 2012.Adebajo MO, 2003, J POROUS MAT, V10, P159, DOI 10.1023-A:1027484117065; Annunciado TR, 2005, MAR POLLUT BULL, V50, P1340, DOI 10.1016-j.marpolbul.2005.04.043; Bayat A, 2005, CHEM ENG TECHNOL, V28, P1525, DOI 10.1002-ceat.200407083; Bossert I, 1984, PETROLEUM MICROBIOLO, P435; Breitenbeck G. A, 1997, OSRADP TECHNICAL REP, P96; BROTAS V, 1990, HYDROBIOLOGIA, V207, P123, DOI 10.1007-BF00041448; Cheong C. J., 2003, J KOREAN SOC SOIL GR, V8, pp81; Cheong CJ, 2001, WATER SCI TECHNOL, V43, P171; CHOI HM, 1992, ENVIRON SCI TECHNOL, V26, P772, DOI 10.1021-es00028a016; Chung S, 2011, CHEM ENG TECHNOL, V34, P1989, DOI 10.1002-ceat.201100353; Chung S., 2008, P 2008 INT OIL SPILL; Chung S, 2012, J ENVIRON SCI-CHINA, V24, P1371, DOI 10.1016-S1001-0742(11)60955-8; de Silva A. P, 1995, THESIS U LOUISIANA B; de Oteyza TG, 2006, SCI TOTAL ENVIRON, V357, P12, DOI 10.1016-j.scitotenv.2005.04.039; Goodin D. A, 2001, 8 INT PETR ENV C HOU; Lee B. G., 1999, KENAF PROPERTIES PRO, P423; Mitsch W. J, 1986, WETLANDS, P393; Office of Technology Assessment (OTA), 1991, BIOR MAR OIL SPILLS; Purandare J. A., 1999, THESIS U CINCINNATI; Venosa Albert D., 2002, Bioremediation Journal, V6, P261, DOI 10.1080-10889860290777602; Venosa AD, 2003, SPILL SCI TECHNOL B, V8, P163, DOI 10.1016-S1353-2561(03)00019-7; Version 2.0, 1997, NOAA TECHN MEM NOS O; Zhu X, 2001, GUIDELINES BIOREMEDI1
Energy dissipation and flux laws for unsteady turbulence
No full textDirect Numerical Simulations of spatially periodic unsteady turbulence show that the high Reynolds number scalings of the instantaneous energy dissipation rate and interscale energy flux at intermediate wavenumbers are qualitatively different from the well-known cornerstone scalings of equilibrium turbulence where and are time-dependent rms velocity and integral length-scales. Instead, they both scale as where and are length and velocity scales characterizing initial/overall unsteady turbulence conditions
8-Chloro-cAMP inhibits transforming growth factor alpha transformation of mammary epithelial cells by restoration of the normal mRNA patterns for cAMP-dependent protein kinase regulatory subunit isoforms which show disruption upon transformation
No full textDifferential regulation of the regulatory subunits of cAMP-dependent protein kinase isozymes correlates with the growth inhibitory effect of site-selective 8-Cl-cAMP demonstrated in cancer cell lines (Ally, S., Tortora, G., Clair, T., Grieco, D., Merlo, G., Katsaros, D., Ogreid, D., Døskeland, S.O., Jahnsen, T., and Cho-Chung, Y.S. (1988) Proc. Natl. Acad. Sci. U. S. A. 85, 6319-6322). Such selective modulation of protein kinase isozyme regulatory subunits was also found in the 8-Cl-cAMP-induced inhibition of both transformation and transforming growth factor alpha (TGF alpha) production in Ki-ras-transformed rat kidney fibroblasts (Tortora, G., Ciardiello, F., Ally, S., Clair, T., Salomon, D. S., and Cho-Chung, Y. S. (1989) FEBS Lett. 242, 363-367). In this work, we have demonstrated that 8-Cl-cAMP antagonizes the TGF alpha effect in TGF alpha-transformed mouse mammary epithelial cells (NOG-8TFC17) at the level of gene expression for cAMP receptor protein isoforms, RI and RII (the regulatory subunits of protein kinase isozymes). Northern blot analysis demonstrated that in the transformed NOG-8TFC17 cells, compared with the nontransformed counterpart NOG-8 cells, the mRNA levels for the RI alpha cAMP receptor protein markedly increased, whereas the mRNA levels for the RII alpha and RII beta cAMP receptor proteins decreased. 8-Cl-cAMP, which induced growth inhibition and phenotypic reversion in NOG-8TFC17 cells, caused an inverse change in the mRNA patterns of the cAMP receptor proteins; RI alpha cAMP receptor mRNA sharply decreased to levels comparable with that of the nontransformed NOG-8 cells, whereas RII beta mRNA increased to a level even greater than that in the NOG-8 cells. In addition, one mRNA species of RII alpha increased, whereas the other RII alpha mRNA species decreased during the treatment. The mRNA level for the catalytic subunit of protein kinase, however, did not change during 8-Cl-cAMP treatment. In addition, 8-Cl-cAMP brought about a reduction in both TGF alpha mRNA and protein levels. These coordinated changes in the expression of the cAMP receptor proteins and TGF alpha were not observed during cis-hydroxyprolineor TGF beta-induced growth inhibition of the NOG-8TFC17 cells. Thus, the antagonistic effect of 8-Cl-cAMP toward TGF alpha-induced transformation involves modulation of the expression of a specific set of cellular genes
U. S. Marines
No full textU. S. Marines date: 1916 illustrator/author: Sidney H. Riesenberg agency: U. S. Marine Corps size: 101.6 x 76.2 cmhttps://digicom.bpl.lib.me.us/wwII_posters_recruit/1003/thumbnail.jp
Spatially-localized time dependent solutions including turbulence and their interactions in 2D Kolmogorov flow
No full textIn 2D Kolmogorov flow in small aspect ratio domains, spatially-localized solutions such as kink, traveling or time-dependent kink-antikink pars coexist. However, the conservation of the flow rate in the y direction strongly restrict combination of localized solutions and their positioning. We find that by adding a homogeneous flow U y their positioning is controlled and each of localized solutions including a spatially-localized chaos is isolated. Numerical results suggest that these isolated solutions can be elements constructing a whole flow
Measurements of small radius ratio turbulent Taylor-Couette flow
No full textIn Taylor-Couette flow, the radius ratio () is one of the key parameters of the system. For small , the asymmetry of the inner and outer boundary layer becomes more important, affecting the general flow structure and boundary layer characteristics. Using high-resolution particle image velocimetry we measure flow profiles for a radius ratio of 0.5 and Taylor number of up to . By measuring at varying heights, roll structures are characterized for two different rotation ratios of the inner and outer cylinder. In addition, we investigate how the turbulent bursts coming from the inner and outer cylinder affect the flow profiles. These results exemplify how curvature affects flow in strongly turbulent Taylor-Couette Flow
Enlist Today U. S. Marines
No full textEnlist Today U. S. Marines date: 1913-18 illustrator/author: Heyendeckei agency: U. S. Marine Corps size: 66 x 45.7 cmhttps://digicom.bpl.lib.me.us/wwII_posters_recruit/1006/thumbnail.jp
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