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| 1 | Modeling atrazine transport in soil columns with HYDRUS-1D显示文摘Both physical and chemical processes affect the fate and transport of herbicides. It is useful to simulate these processes with computer programs to predict solute movement. Simulations were run with HYDRUS-1D to identify the sorption and degradation parameters of atrazine through calibration from the breakthrough curves (BTCs). Data from undisturbed and disturbed soil column experiments were compared and analyzed using the dual-porosity model. The study results show that the values of dispersivity are slightly lower in disturbed columns, suggesting that the more heterogeneous the structure is, the higher the dispersivity. Sorption parameters also show slight variability, which is attributed to the differences in soil properties, experimental conditions and methods, or other ecological factors. For both of the columns, the degradation rates were similar. Potassium bromide was used as a conservative non-reactive tracer to characterize the water movement in columns. Atrazine BTCs exhibited significant tailing and asymmetry, indicating non-equilibrium sorption during solute transport. The dual-porosity model was verified to best fit the BTCs of the column experiments. Greater or lesser concentration of atrazine spreading to the bottom of the columns indicated risk of groundwater contamination. Overall, HYDRUS-1D successfully simulated the atrazine transport in soil columns. | John Leju CELESTINO LADU Dan-rong ZHANG | 2011 | Water Science and Engineering2011，4，3： | 5 |
| 2 | Ubiquitous Activation of Ras and Jak/Stat Pathways in Human HCC显示文摘 | Diego F. Calvisi Sara Ladu Alexis Gorden Miriam Farina Elizabeth A. Conner Ju–Seog Lee Valentina M. Factor Snorri S. Thorgeirsson | 2006 | Gastroenterology2006，，4： | 3 |
| 3 | Effects of hydraulic retention time, temperature, and effluent recycling on efficiency of anaerobic filter in treating rural domestic wastewater显示文摘With rural population expansion and improvement of the socio-economic standard of living, treatment of rural domestic wastewater has rapidly become a major aspect of environmental concern. Selection of a suitable method for treatment of rural domestic wastewater depends on its efficiency, simplicity, and cost-effectiveness. This study investigated the effects of hydraulic retention time(HRT), temperature, and effluent recycling on the treatment efficiency of an anaerobic filter(AF) reactor. The first round of experimental operations was run for three months with HRTs of one, two, and three days, temperatures of 18℃, 21℃, and 24℃, and no effluent recycling. The second round of experimental operations was conducted for another three months with HRTs of three and four days; temperatures of 30.67℃, 30.57℃, and 26.91℃; and three effluent recycling ratios of 1:1, 1:2, and 2:1. The first round of operations showed removal rates of 32% to 44% for COD, 30% to 35% for TN, 32% to 36% for +4NH-N, 19% to 23% for 3NO-N-, and 12% to 22% for TP. In the second round of operations, the removal rates varied from 75% to 81% for COD, 35% to 41% for TN, 31% to 39% for +4NH-N, 30% to 34% for 3NO-N-, and 41% to 48% for TP. The average gas production rates were 6.72 L/d and 7.26 L/d for the first and second rounds of operations, respectively. The gas production rate increased in the second round of operations as a result of applied effluent recycling. The best removal efficiency was obtained for an optimum HRT of three days, a temperature of 30℃, and an effluent recycling ratio of 2:1. The results show that the removal efficiency of the AF reactor was affected by HRT, temperature, and effluent recycling. | John Leju Celestino LADU Xi-wu Lü | 2014 | Water Science and Engineering2014，7，2： | 2 |
| 4 | Apolipoprotein E and apoli- poprotein E receptors modulate A beta-induced glial neuroinflamma- tory responses显示文摘 | LaDu MJ Shah JA Reardon CA | 2001 | Neuroehem Int2001，39，56： | 1 |
| 5 | Mechanistic and prognostic significance of aherrant methylation in the molecular pathogenesis of hmnan hepatocellular earcinoma 显示文摘 | Calvisi DF Ladu S Gorden A | 2007 | J Clin Invest2007，117，9： | 1 |
| 6 | Activation oil v-Myb a- vian myeloblastosis viral oncogene homolog-like2 (MYBL2)- LIN9 complex contributes to human hepatoearcinogenesis and identifies a subset of hepatocellular carcinoma with mutant p53显示文摘 | Calvisi DF Simile MM Ladu S | 2011 | Hepatology2011，53，4： | 1 |
| 7 | Altered methionine metabolism and global DNA methylation in liver cancer: Relationship with genomic instability and prognosis 显示文摘 | Calvisi DF Simile MM Ladu S | 2007 | lnt J Cancer2007，121，11： | 1 |
| 8 | Ubiquitous activation of Ras and Jak/Stat pathways in human HCC 显示文摘 | Calvisi DF Ladu S Gorden A | 2006 | Gastroenterology2006，130，4： | 1 |
| 9 | Lactate dehydrogenase activity in blood 显示文摘 | Wrobleski E LaDus GS | 1995 | Proc Soc Exp Med1995，90，： | 1 |
| 10 | Isoform-specific binding of Apolipoprotein E to β-amyloid 显示文摘 | Ladu MJ | 1994 | J Biol Chem1994，269，23： | 1 |
| 11 | Forkhead box M1B is a determi- nant of rat susceptibility to hepatocarcinogenesis and sustains ERK activity in human HCC 显示文摘 | Calvisi DF Pinna F Ladu S | 2009 | Gut2009，58，5： | 1 |
| 12 | A Data Modem for GSM Voice Channel显示文摘 | Ladue C K Sapozhnykov V V Fienberg K S | 2008 | IEEE Transactions on Vehicular Technology2008，57，4： | 1 |
| 13 | Ubiquitous activation of Ras and Jak/Stat pathways in human HCC显示文摘 | Calvisi D F Ladu S Gorden A | 2006 | Gastroenterology2006，130，4： | 1 |
| 14 | Activation of beta-catenin provides proliferative and invasive advantages in c-myc/TGF-alpha hepatocarcinogenesis promoted by phenobarbital显示文摘 | Calvisi DF Ladu S Factor VM | 2004 | Carcinogenesis2004，25，6： | 1 |
| 15 | Lactic dehydrogenase activity in blood显示文摘 | Wroblewski F LaDue JS | 1955 | Proc Soc ExpMed1955，90，： | 1 |
| 16 | Forkhead box M1B is a determi- nant of rat susceptibility to hepatocarcinogenesis and sustains ERK activity in human HCC 显示文摘 | Calvisi DF Pinna F Ladu S | 2009 | Gut2009，55，5： | 1 |
| 17 | Ubiquitous activation of Ras and Jak/Stat pathways in human HCC 显示文摘 | Calvisi D F Ladu S Gorden A | 2006 | Gastroenterology2006，130，4： | 1 |
| 18 | Coordinating a local response to a national tragedy:Community mental health in Washington DC after the pentagon attack显示文摘 | Dodgen D Ladue LR Kaul RE | 2002 | Mil Med2002，167，9： | 1 |
| 19 | Isoform-specific binding of apolipoprotein E to β -amyloid显示文摘 | Ladu M J Falduto M T Frail D | 1994 | J Biol Chem1994，269，23： | 1 |
| 20 | Lactic dehydrogenase activity in blood 显示文摘 | Wroblewski F Ladue JS | 1955 | Proc Soc Exp BioI Med1955，90，1： | 1 |
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