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1. Biodegradation of Natural Rubber Wastewater in the Submerged Membrane Bioreactor by Pichia Guilliermondii and Yarrowia Lipolytica

Author

M.N. Nsoe, E.V. Amba, N.M. Kameni, G.P. Kofa, K.S. Ndi, M. Heran, and G.J. Kayem

Subjects
Filtration and Separation, General Materials Science, Physical and Theoretical Chemistry, Biochemistry
Abstract

s: Despite the many services that natural rubber provides to humanity, its production generates significant quantities of polluted effluents which have a negative impact on health and the environment. In order to reduce this pollution and allow water to be reused after treatment, a synthetic effluent treatment trial was carried out in a submerged membrane bioreactor in the presence of two strains of yeast (Yarrowia lipolytica, Pichia guilliermondii) and biodegradation parameters (COD, NH4+, NO2-, NO3-) were followed. The Mohlman Index (MI), the particle size distribution, the Lowry method for proteins and the Dubois method for sugars have made it possible to characterize the sludge generated during biodegradation. It appears from these experiments that the reduction rate of COD was 98% and that of nitrification and denitrification 90%. There is a decreasing linear relationship between the MI and SS (Suspended Solids) with an R2 of 95%. The distribution of the particle size of the sludge is tri-modal with a maximum of sludge having an average size of 1000 µm. The sludge formed resists filtration with a polysaccharide/protein ratio of 0.45.

Published
2023
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2. O-072 Characteristics of a COVID-19 cohort with large vessel occlusion: a multicenter international study

Author

P Jabbour, A Dmytriw, A Sweid, M Piotin, K Bekelis, N Sourour, E Raz, I Linfante, M Kole, S Nimjee, D Lopes, A Hassan, P Kan, M Ghorbani, M Levitt, A Pandey, R Starke, K El Naamani, R Abbas, O Mansour, M Walker, M Heran, A Kuhn, B Menon, S Sivakumar, A Mowla, A Zha, D Cooke, A Siddiqui, G Gupta, C Tiu, P Portela, N De la Ossa, X Orra, M De Lera, M Ribo, M Piano, K De Sousa, F Al Mufti, Z Hashim, L Renieri, T Nguyen, P Feineigle, A Patel, J Grossberg, H Saad, M Gooch, S Tjoumakaris, N Herial, and R Rosenwasser

Published
2022
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4. A241 A REVIEW OF 101 CHILDREN WITH GASTRO-JEJUNAL FEEDING TUBES INCLUDING THEIR COMPLICATIONS AT BC CHILDREN’S HOSPITAL

Author

T Dewan, T Hoang, S Maroo, E Lee, V Avinashi, and M Heran

Subjects
medicine.medical_specialty, Gastro-jejunal, business.industry, Internal medicine, medicine, business, Gastroenterology
Abstract

Background The use of GastroJejunal Tubes (GJTs) is an increasingly common method for providing post-pyloric enteral nutrition in pediatric patients. Aims To describe the patients with GJT including the indication, comorbidities including by system, as well as tube related complications. Methods The charts of 101 patients who had a GJT over a one-year period (2019–20) were retrospectively reviewed including demographics, medical diagnoses, information about tube placement, maintenance, and complications including malposition, balloon failure, blockages, and leakages / breaks. Results The top indications for GJT are aspiration and GERD. 73.3% have >3 system comorbidities (ie CNS, GI, Resp). Mean age of GJT placement was 43 months. 78% remain on a PPI and 24% are on a prokinetic. 24% continue to eat some amount orally. Over this one-year period, 92% continue with a GJT (mean duration 4 years, max 15), 4% have reverted back to a G-tube, 1% had a surgical J tube placed, and 3% died (not due to the GJT). Following initial placement, these 101 patients underwent 1194 GJT related procedures, (417 urgent changes, 777 routine changes) with 98.3% technical success. Patients needed an average of one urgent repair per year (3.2/1000 GJT days) and the majority of patients required >1 emergency visit. Those with routine GJT changes seem to have fewer urgent repairs (Figure 1). Conclusions Children with GJT represent a growing complex patient population. GJT are being used for the longer term. Routine maintenance seems supported by our data although doesn’t prevent the need for urgent repairs or other complications. Frameworks and guidelines are needed for this essential technology to improve clinical care. Funding Agencies None

Published
2021
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5. Biodegradation of Ammonium Ions and Formate During Ammonium Formate Metabolism by Yarrowia lipolytica and Pichia guilliermondii in a Batch Reactor

Author

M. Heran, B. Mohammadou, G. J. Kayem, G. P. Kofa, M. N. Nsoe, K. S. Ndi, Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), Institut Européen des membranes ( IEM ), and Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Supérieure de Chimie de Montpellier ( ENSCM ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM )

Subjects
Yarrowia lipolytica, Environmental Engineering, Batch reactor, Rubber wastewater, 02 engineering and technology, 010501 environmental sciences, 01 natural sciences, [ CHIM ] Chemical Sciences, Article, chemistry.chemical_compound, 020401 chemical engineering, Ammonium formate, Environmental Chemistry, [CHIM]Chemical Sciences, Ammonium, Formate, 0204 chemical engineering, Pichia guilliermondii, 0105 earth and related environmental sciences, Water Science and Technology, Pichia, biology, Ecological Modeling, Yarrowia, Biodegradation, Inhibitor substrat, biology.organism_classification, Pollution, chemistry, 13. Climate action, Nuclear chemistry
Abstract

International audience; The use of microorganisms for the biodegradation of pollutants is increasingly being studied. But at high concentrations, these pollutants become rather inhibitors for the metabolism of microorganisms. In this study, the biodegradation of ammonium formate at various concentrations (1.59-7.94 mM) by Yarrowia Lipolytica and Pichia guilliermondii isolated from the rubber effluent is studied by following the variation of ammonium ions and formate. A fitting of eight models of substrate inhibition was performed and the parameters were determined by nonlinear regression using MATLAB 8.5 A (c). The R (2) and the RSME allow to choose the best model. The results show that ammonium ions (3.17 mM ammonium formate) are used as substrate; no inhibition is observed. But beyond this concentration, the inhibition effect begins to be observed with the specific rates of ammonium biodegradation which decrease. Formate monitoring reveals that is used as the main source of energy and does not inhibit the growth of yeasts. The models of Luong and Webb seem to be more appropriate for predicting the observed phenomena of inhibition. For Yarrowia lipolytica, R (2) = 0.958 and 0.998 with RSME = 0.005342 and 0.003433, for Pichia guillermondii, R (2) = 0.999 and 0.992 with RSME = 0.0005121 and 0.001212.

Published
2018
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7. POSTER SESSIONS SCHEDULE

Author

C Hinkin, M Cuevas, A Rauscher, W Kim, T Fogel, G Walls, M Heran, L Drag, S Akeson, K An, Mark T. Barisa, J Cantor, R Pella, C Ward, D Terry, E Parke, I Grant, K Blackstone, David B. Salisbury, P Davidson, G McDonald, C Strongin, Sudhin A. Shah, R Kim, A Miele, K Carlson, N Cadavid, J Donders, S Mahal, T Feaster, K Griffits, J Mayfield, T Brand, A Vernon, Scott R. Miller, C Price, C Vickery, L Carrion, J Beaute, L Weigand, G Crucian, A Tan, M Shuman, Talin Babikian, T Van Vleet, D La, I Thiruselvam, N Nemanim, L Baum, L Loneman, A Schmitt, R Hoadley, J Keller, J Kim, Bonnie M. Scott, M Edwards, M Rohling, B Palmer, G Godoy-Garcete, Ana Rosario, M Taylor, S Letendre, I Sanchez, A Harmell, David L. McArthur, S Greco, M O'Neil, H Yoshida, Jerome H. Carter, Marie N. Dahdah, E Jeffay, L McCutcheon, E Stambrook, A Rach, A Minassian, S Vinogradov, R Akarakian, S Khen, D Schiehser, M Young-Bernier, B Roberg, P Marchetti, L Kenworthy, P Ross, N Didehbani, M Lally, T Brickell, G Vasilev, D Kansagara, Glen A. Palmer, Amanda R. Rabinowitz, A Bedard, Desiree Byrd, K daCruz, A Torstrick, T Nguyen, M Solomon, E Hanson, S Turecka, J Moskowitz, Catherine Stasio, J Kenton, E Call, J McLeod, H Rossetti, Paula I. Martin, J Wasisco, C Depp, Sunni A. Barnes, R Lange, T Lotze, S Erikson, Samantha E. John, K Gulliver, Daniel N. Allen, M Schoenberg, M Joan, S Hass, D Munic-Miller, N Grant, M Weiner, S. DeBoard Marion, C Waksmunski, H Muetze, K Brady, P Roskos, Cynthia Dunklin, N Puente, K Russler, M Salzberg, I Neeland, J McKeever, A Fonteh, J Peer, M Choe, K Russ, C Marini, E Hui, C Kimmel, N Kecala, L. Schwent Shultz, Shelley Peery, R Gonzalez, C Spickler, E Lanni, L Flaro, E Talbot, E Giese, A Davis, Sam Vogel, D Hachey, W Mittenberg, Kenneth L. Jones, S Mahdavi, V. Alipio Jocson, M Marquine, B Ivins, S Paisley, E Weber, G Silk-Eglit, R Singer, K Barnes, A Ghias, J Sordahl, M Spiers, J Anderson, C Mathiowetz, S Fritz, R Fazio, E Miles-Mason, M Glusman, Octavio A. Santos, Jessica A. Kaczorowski, T Dugbartey, K Burns, A Gottuso, Nicholas J. Pastorek, Shahid Shafi, Librada Callender, R Dean, M Thomas, S Schleicher-Dilks, C Bermudez, J Muir, E Van Ness, R Odom, R Dye, F van der Fluit, C Lindbergh, J Grups, Monica U. Ellis, M Coe, M Schmitter-Edgecombe, S Lanting, Rosemary Dubiel, Katherine W Sullivan, A Bonner-Jackson, A Lyon, Daniel J. Schwartz, M Pachalska, S Hibyan, J Long, S Watson, N Nardi, L Pinto, Claudia Kernan, F Thomas, J Messerly, B Walsh, A Daros, S Margolis, M Cullum, B Rainwater, K Baerresen, M Steenari, M Vertinski, P Klas, A Harrison, J Stewart, R Carrasco, D Storzbach, E VonDran, K Carter, M Baldassarre, R Fares, A Freeman, J Barnett, Maggie C. Happe, M Harrington, D D'Argenio, J Piehl, Jacob Sheynin, C Young, A Anum, W Garmoe, T Barker, O Selnes, C Lobue, J Gray, A Rossi, B Stephens, M Jarrett, G Gilbert, A Graefe, J Gfeller, M Murphy, R Perna, B Gouaux, C Leibson, M Heinly, A Allart, Joshua Harrison, M Dudley, B Henry, S O'Bryan, D Miller, J Kennedy, B Edner, M Curri, F Tremblay, T Becker, J Neff, K Gillis, M Poon, C Ukpabi, J Hall, Victoria C. Merritt, D Nemeth, K Tyson, L Glukhovsky, P Vik, Karen K. Miller, R Schroeder, Christopher C. Giza, Benjamin Jurek, M Dawson, T Susmaras, K Rajendran, T Swirsky-Sacchetti, Joseph DeGutis, K Isham, P Massman, M Collier, L Klimik, D Moore, C Baum, J DiGangi, J Francis, B Baughman, A Patel, D Zink, V Carrión, Claire D. Coles, Sarah N. Mattson, A Reveles, T Novakovic-Agopian, D Drasnin, G Sutton, K Jacquin, J Tsou, John D. Medaglia, C Kane, A Starza-Smith, G Lafleche, M Bidzan, J Stenclik, C Smith, J Spat, G Mucci, M Legarreta, Frank G. Hillary, A Mouanoutoua, I Armstrong, C Isaacs, K Beene, C Songy, A Steed, R McCaffrey, J Loftis, A Levan, J Marcinak, Lisa Delano-Wood, C Draffkorn, A Harley, J Shewchuk, J Lynch, P Lebby, Preeti Sunderaraman, R Verbiest, E Stranks, B Hill, A Zisk, L Bolshin, P Stolberg, J Zamzow, V Culotta, J Gross, J Davis, M Fisher, S Mohammed, D Rosario, L Baade, J Fischer, M Muniz, M Kaminetskaya, W Gomes, J Park, K Netson, M Fanning, G Wallace, Nicholas S. Thaler, C Ayers, R Ellis, J Gonzalez, L Zhao, J Thelen, J Kiefel, J Halperin, J Uderman, R Stephan, L Sweet, K Whithers, F Fonseca, A Fedio, D Cooper, Jessica E. Meyer, J Capps, G Getz, M Palewjala, E Rinehardt, A Fernandez, S Tanner, J Ang, Audrey M. Carson, W Finch, S Evans, Gray Vargas, Ellen B. Braaten, J Murry, B Klein-Tasman, M Adler, E Culnan, G Richardson, A Dominska, T Olivier, A Dedmon, E Lane, C Prince, A Mannarino, B Casto, J Calloway, J Mackillop, C Garrett, John F. Linck, A Parks, S Sorg, W Andrew, G Fong, W Gouvier, L Lacritz, Jennifer Romesser, G Small, L Lashley, James B. Hoelzle, Predict-Hd Investigators, M Sakamoto, A Hart, F Dadis, D Pina, J Paulsen, N Stricker, G Iverson, R Macher, A Stringer, C Saucier, J Gallegos, P Andrews, A Chappell, D Jeste, K Mulligan, Pouneh K. Fazeli, D Harrison, R Romero, D Maricle, Joshua D. Miller, S Patel, Jeffrey M. Robbins, S Mansinghani, W Hoffman, K Espinoza, R Roberts, N Londono, M Douangratdy, K Kelley, O Alhassoon, A Quinones, J Taylor, E Ringdahl, A Ness, N DeFilippis, K Marshall, S Jaehnert, R Vergara, P Harvey, J Iudicello, C Ellis, S Tun, Thomas D. Parsons, Amanda E. Hahn-Ketter, C McAlister, T Patterson, R Gomez, K Kloezeman, J Wingo, C Barrio, Michael B. Reid, M Vasserman, Jacob Cohen, C Golden, C Ciobanu, F Carla, D Dinishak, Louis M. French, E Scharaga, Kirsten A. Schohl, A Newman, A Gold, J Bunting, A Puente, R Heaton, A Boettcher, D Wolff, R Baek, T Giovannetti, B Hummer, A Loughan, Ryan J. McKindles, M Bunner, M Kral, W Cole, C Love, E Corley, A Zomet, F Loya, K Young, P May, K Constantine, A Duhig, V Pankratz, J Tam, Maria T. Schultheis, A Junod, K Wyman-Chick, A Houshyarnejad, A Kent, J Wall, D Gansler, M Bens, M Jerram, C Dombrowski, J Segovia, J Hoblyn, M Geyer, N Pliskin, J Strang, B Fuller, J Kloss, J Paxton, J Chow, L Guatney, K Smith, F Foley, Elizabeth R. Sowell, L Brenner, M Rivera Mindt, A Levine, C Irwin, S Rome, J Neiman-Kimel, L Segalà, G Saini, Scott A. Loe, P Vekaria, H Woolery, M Francis, S Newton, Daniel J. Heyanka, J Link, Stephen G. West, T Ala, W Burns, H Pedersen, M Norman, L Delgaty, C Mihailescu, S Cowad, T Melville, Leila Glass, Nathan D. Doty, E Simco, A Holland, R Robbs, Warren T. Jones, S Banks, X Bonilla, R McCue, C Ramirez, M Phoong, N Upshaw, H England, S Woods, K Whigham, L Miller, J Etherton, S Rolin, Sawsan Dabit, S Kohlrus, S Thomlinson, Ryan Olmstead, A Chen, S Mahmoud, S Mauro, B Greenberg, B Lukaszewska, C Brown, R Moore, B Freer, W MacAllister, S Schaffer, R Fontanetta, J Vassileva, J Fine, Amy Wilson, C O'Shea, L Barker, Joseph J. Graca, Anthony C. Ruocco, E Schulze, Brian I. Miller, A Kaup, K Julie, A Nolty, P Siddarth, Jeffrey S. Karst, B Rabinovitz, S Yudovin, C Faraco, M Raymond, Anita H. Sim, I Kunkes, J Kamm, K Zakzanis, R Petersen, A Rudd-Barnard, N Fritz, A Bozorg, R Wellington, R Naslednikova, R Nogin, J Moses, L Tiersky, T Lee, L Cooper, M Smith, A Papadakis, L Hoskins, L Ashendorf, Caitlin Miranda, J Sexton, S Barney, M Le, M Putnam, Lillie Weiss, D Baldock, D Grimm, H Westervelt, M Mattingly, Yelena Bogdanova, C Hopewell, J Kahne, C Moore, B Mausbach, Robert F. Asarnow, Peter A. Arnett, Michael M. Merzenich, R Remel, S Coad, J Hertza, C Romers, L Harrison, M Daniel, J Clark, A Rowden, B Bristow-Murray, A Reyes, C Noggle, D Yeh, Bridget K. Dolan, Keith D. Cicerone, G Goodman, D Haberman, Mary K. Colvin, M Noback, Hasan Ayaz, B Natalie, M Cohen, Mary F. Musso, G Abrams, Seth A. Gale, J McGinley, E Bene, Ramon Diaz-Arrastia, S Benbadis, S Northington, S O'Neill, R Ruchinskas, M Hall, B Saffer, L Miarmi, F Webbe, Dobrivoje S. Stokic, C Bowie, B Duda, J Bravo, S Taylor, L Wilson, Henry W. Mahncke, R Scott, Ashita S. Gurnani, K Eichstaedt, H Soper, A Andrews, B Evans, J Bailie, R Poulin, K Evankovich, R Relova, A Gremillion, S Hunter, B Lee, M Beier, Edward P. Riley, S Edmed, M Wills, Sarah M. Kark, E Quasney, K Barrera, Yelena Goldin, Kimberley R. Monden, A Barker, V Sterk, J Fink, J Ikanga, Will Lindstrom, B Hunter, D Denney, S Huberman, C Williams, T Otero, K Spengler, A Pulver, Kathryn L Schmidt, J Meyers, E Gutierrez, V Wheaton, K Downing, A Bhagwat, Stephen A. Olson, E Lande, R Lee, F Vale, F Barwick, Mirella Díaz-Santos, C Mosti, Daniel S. Brown, M Benners, L Horne-Moyer, K Johnson, V Vargas, P Sylvester, E Shapiro, Sarah DeBoard Marion, J Poole, E Strongin, K Fields, M Basso, R Lawson, D Brinckman, E Morgan, A Simone, I Raynov, A Matevosyan, J Emerson, M Motu'apuaka, S Heverly-Fitt, Alexandra L. Clark, E March, B Roper, N Dezhkam, N Dasher, V Patt, Sheryl Stevens, A Choi, S Sautter, A Van Hecke, J. Travis Seidl, T Raines, W Perry, L Moss, M Macaluso, G Carlin, S Sisk, B Bowman, John Hart, Elisabeth M. Vogt, Michael D. Ensley, B Schilling, L Ercoli, M Zupanc, V D'Orio, A Bure-Reyes, L Rabin, J Nunan-Saah, N Rodgers-Neame, Jared M. Bruce, E Crouse, C Boys, H Kletter, T Lo, Brandon E. Gavett, A Sherzai, N Bott, K Walker, J Brubacher, Tanya M. Brown, F Ahmed, Dede M. Ukueberuwa, L Etcoff, K Chu, B Schweinsburg, Y Demsky, K Vitelli, M Huckans, L Nakhutina, A Ghelani, C Higginson, R Zec, A Curiel, David C. Osmon, S Crowe, K Phelps, O Prokhorenko, M Koehle, C Morse, Alice Cronin-Golomb, E Batchelor, J Lum, G Brown, L Silva, M Freeman, C Babika, Janine M. Paxson, P Pimental, W Buddin, J Baker, J Kline, F Hays, M Pollock, M Oganes, Armando Fuentes, M Ring, B Thieme, A Psihogios, A Zimmer, J Thompson, Hannah M. Lindsey, O Graham, Christina L. Casnar, M Arce Rentería, A Rooney, K Bozgunov, M Welch, M Lipowska, M Earleywine, S Lewis, T Floyd, A Tanguay, Yongming Li, C Tai, N Fromm, N Luc, K Barchard, K Musielak, Amir Poreh, R Heinrichs, C Boyd, K Schwab, A Lynch, R Wanlass, K Janke, S Bullard, S Hughes, K Hanson, C Holder, A Legenkaya, J Siegel, S Gold, C Evans, F Hill, Caryn R. Harper, D Binder, S Gill, M Bruhns, E Singer, Sidney O'Bryant, and J Atkinson

Subjects
Psychiatry and Mental health, Clinical Psychology, Schedule, Neuropsychology and Physiological Psychology, business.industry, Medicine, Operations management, General Medicine, business
Published
2013
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9. Grand Rounds

Author

G. Fayolle, W. Levick, R. Lajiness-O'Neill, P. Fastenau, S. Briskin, N. Bass, M. Silva, E. Critchfield, R. Nakase-Richardson, J. Hertza, A. Loughan, R. Perna, S. Northington, S. Boyd, A. Anderson, S. Peery, M. Chafetz, M. Maris, A. Ramezani, C. Sylvester, K. Goldberg, M. Constantinou, M. Karekla, J. Hall, M. Edwards, V. Balldin, A. Strutt, V. Pavlik, C. Marquez de la Plata, M. Cullum, l. lacritz, J. Reisch, P. Massman, D. Royall, R. Barber, S. Younes, A. Wiechmann, S. O'Bryant, K. Patel, J. Suhr, S. Chari, J. Yokoyama, B. Bettcher, A. Karydas, B. Miller, J. Kramer, R. Zec, S. Fritz, S. Kohlrus, R. Robbs, T. Ala, K. Gifford, N. Cantwell, R. Romano, A. Jefferson, A. Holland, S. Newton, J. Bunting, M. Coe, J. Carmona, D. Harrison, A. Puente, D. Terry, C. Faraco, C. Brown, A. Patel, A. Watts, A. Kent, J. Siegel, S. Miller, W. Ernst, G. Chelune, J. Holdnack, J. Sheehan, K. Duff, O. Pedraza, J. Crawford, L. Miller, V. Hobson Balldin, H. Benavides, L. Johnson, L. Tshuma, N. Dezhkam, L. Hayes, C. Love, B. Stephens, F. Webbe, K. Mulligan, K. Dunham, S. Shadi, C. Sofko, R. Denney, S. Rolin, J. Sibson, S. Ogbeide, M. Glover, A. Warchol, B. Hunter, C. Nichols, C. Riccio, M. Cohen, A. Dennison, T. Wasserman, S. Schleicher-Dilks, M. Adler, C. Golden, T. Olivier, B. LeMonda, J. McGinley, A. Pritchett, L. Chang, C. Cloak, E. Cunningham, G. Lohaugen, J. Skranes, T. Ernst, E. Parke, N. Thaler, L. Etcoff, D. Allen, P. Andrews, S. McGregor, R. Daniels, N. Hochsztein, E. Miles-Mason, Y. Granader, M. Vasserman, W. MacAllister, B. Casto, K. Patrick, F. Hurewitz, D. Chute, A. Booth, C. Koch, G. Roid, N. Balkema, J. Kiefel, L. Bell, A. Maerlender, T. Belkin, J. Katzenstein, C. Semerjian, V. Culotta, E. Band, R. Yosick, T. Burns, A. Arenivas, D. Bearden, K. Olson, K. Jacobson, S. Ubogy, C. Sterling, E. Taub, A. Griffin, T. Rickards, G. Uswatte, D. Davis, K. Sweeney, A. Llorente, A. Boettcher, B. Hill, D. Ploetz, J. Kline, M. Rohling, J. O'Jile, K. Holler, V. Petrauskas, J. Long, J. Casey, T. Duda, S. Hodsman, S. Stricker, S. Martner, R. Hansen, F. Ferraro, R. Tangen, A. Hanratty, M. Tanabe, E. O'Callaghan, B. Houskamp, L. McDonald, L. Pick, D. Guardino, T. Pietz, K. Kayser, R. Gray, A. Letteri, A. Crisologo, G. Witkin, J. Sanders, M. Mrazik, A. Harley, M. Phoong, T. Melville, D. La, R. Gomez, L. Berthelson, J. Robbins, E. Lane, P. Rahman, L. Konopka, A. Fasfous, D. Zink, N. Peralta-Ramirez, M. Perez-Garcia, S. Su, G. Lin, T. Kiely, A. Schatzberg, J. Keller, J. Dykstra, M. Feigon, L. Renteria, M. Fong, L. Piper, E. Lee, J. Vordenberg, C. Contardo, S. Magnuson, N. Doninger, L. Luton, D. Drane, A. Phelan, W. Stricker, A. Poreh, F. Wolkenberg, J. Spira, J. DeRight, R. Jorgensen, L. Fitzpatrick, S. Crowe, S. Woods, K. Doyle, E. Weber, M. Cameron, J. Cattie, C. Cushman, I. Grant, K. Blackstone, D. Moore, B. Roberg, M. Somogie, J. Thelen, C. Lovelace, J. Bruce, A. Gerstenecker, B. Mast, I. Litvan, D. Hargrave, R. Schroeder, W. Buddin, L. Baade, R. Heinrichs, J. Boseck, K. Berry, E. Koehn, A. Davis, B. Meyer, B. Gelder, Z. Sussman, P. Espe-Pfeifer, M. Musso, A. Barker, G. Jones, W. Gouvier, V. Johnson, L. Zaytsev, M. Freier-Randall, G. Sutton, E. Ringdahl, J. Olsen, D. Byrd, M. Rivera-Mindt, R. Fellows, S. Morgello, V. Wheaton, S. Jaehnert, C. Ellis, H. Olavarria, J. Loftis, M. Huckans, P. Pimental, J. Frawley, M. Welch, K. Jennette, E. Rinehardt, M. Schoenberg, L. Strober, H. Genova, G. Wylie, J. DeLuca, N. Chiaravalloti, E. Ibrahim, A. Seiam, S. Bohlega, H. Lloyd, M. Goldberg, J. Marceaux, R. Fallows, K. McCoy, N. Yehyawi, E. Luther, R. Hilsabeck, R. Fulton, P. Stevens, S. Erickson, P. Dodzik, R. Williams, J. Dsurney, L. Najafizadeh, J. McGovern, F. Chowdhry, A. Acevedo, A. Bakhtiar, N. Karamzadeh, F. Amyot, A. Gandjbakhche, M. Haddad, M. Johnson, J. Wade, L. Harper, A. Barghi, V. Mark, G. Christopher, D. Marcus, M. Spady, J. Bloom, A. Zimmer, M. Miller, D. Schuster, H. Ebner, B. Mortimer, G. Palmer, M. Happe, J. Paxson, B. Jurek, J. Graca, J. Meyers, R. Lange, T. Brickell, L. French, G. Iverson, J. Shewchuk, B. Madler, M. Heran, J. Brubacher, B. Ivins, M. Baldassarre, T. Paper, A. Herrold, A. Chin, D. Zgaljardic, K. Oden, M. Lambert, S. Dickson, R. Miller, P. Plenger, E. Sutherland, C. Glatts, P. Schatz, K. Walker, N. Philip, S. McClaughlin, S. Mooney, E. Seats, V. Carnell, J. Raintree, D. Brown, C. Hodges, E. Amerson, C. Kennedy, J. Moore, C. Ferris, T. Roebuck-Spencer, A. Vincent, C. Bryan, D. Catalano, A. Warren, K. Monden, S. Driver, P. Chau, R. Seegmiller, M. Baker, S. Malach, J. Mintz, R. Villarreal, A. Peterson, S. Leininger, C. Strong, J. Donders, V. Merritt, G. Vargas, A. Rabinowitz, P. Arnett, E. Whipple, M. Schultheis, K. Robinson, D. Iacovone, R. Biester, D. Alfano, M. Nicholls, P. Klas, E. Jeffay, K. Zakzanis, M. Vandermeer, M. Womble, E. Corley, C. Considine, N. Fichtenberg, J. Harrison, M. Pollock, A. Mouanoutoua, A. Brimager, P. Lebby, K. Sullivan, S. Edmed, K. Kieffer, M. McCarthy, L. Wiegand, H. Lindsey, M. Hernandez, Y. Noniyeva, Y. Lapis, M. Padua, J. Poole, B. Brooks, C. McKay, W. Meeuwisse, C. Emery, A. Mazur-Mosiewicz, E. Sherman, M. Kirkwood, J. Gunner, A. Miele, G. Silk-Eglit, J. Lynch, R. McCaffrey, J. Stewart, J. Tsou, D. Scarisbrick, R. Chan, A. Bure-Reyes, L. Cortes, S. Gindy, C. Biddle, D. Shah, P. Jaberg, R. Moss, M. Horner, K. VanKirk, C. Dismuke, T. Turner, W. Muzzy, M. Dunnam, G. Warner, K. Donnelly, J. Donnelly, J. Kittleson, C. Bradshaw, M. Alt, S. Margolis, E. Ostroy, K. Higgins, K. Eng, S. Akeson, J. Wall, J. Davis, J. Hansel, B. Wang, R. Gervais, M. Greiffenstein, J. Denning, E. VonDran, E. Campbell, C. Brockman, G. Teichner, R. Waid, B. Buican, P. Armistead-Jehle, J. Bailie, A. Dilay, M. Cottingham, C. Boyd, S. Asmussen, J. Neff, S. Schalk, L. Jensen, J. DenBoer, S. Hall, E. Holcomb, B. Axelrod, G. Demakis, C. Rimland, J. Ward, M. Ross, M. Bailey, A. Stubblefield, J. Smigielski, J. Geske, V. Karpyak, C. Reese, G. Larrabee, L. Allen, M. Celinski, J. Gilman, C. LaDuke, D. DeMatteo, K. Heilbrun, T. Swirsky-Sacchetti, A. Dedman, K. Withers, T. Deneen, J. Fisher, B. Spray, R. Savage, H. Wiener, J. Tyer, V. Ningaonkar, B. Devlin, R. Go, V. Sharma, R. Fontanetta, C. Calderon, S. Coad, R. Fontaneta, M. Vertinski, R. Verbiest, J. Snyder, J. Kinney, A. Rach, J. Young, E. Crouse, D. Schretlen, J. Weaver, A. Buchholz, B. Gordon, S. Macciocchi, R. Seel, R. Godsall, J. Brotsky, A. DiRocco, E. Houghton-Faryna, E. Bolinger, C. Hollenbeck, J. Hart, B. Lee, G. Strauss, J. Adams, D. Martins, L. Catalano, J. Waltz, J. Gold, G. Haas, L. Brown, J. Luther, G. Goldstein, E. Kelley, C. Raba, L. Trettin, H. Solvason, R. Buchanan, D. Baldock, J. Etherton, T. Phelps, S. Richmond, B. Tapscott, S. Thomlinson, L. Cordeiro, G. Wilkening, M. Parikh, L. Graham, M. Grosch, L. Hynan, M. Weiner, C. Cullum, C. Menon, L. Lacritz, M. Castro-Couch, F. Irani, A. Houshyarnejad, M. Norman, F. Fonseca, B. Browne, J. Alvarez, Y. Jiminez, V. Baez, C. Resendiz, B. Scott, G. Farias, M. York, V. Lozano, M. Mahoney, M. Hernandez Mejia, E. Pacheco, A. Homs, R. Ownby, J. Nici, J. Hom, J. Lutz, R. Dean, H. Finch, S. Pierce, J. Moses, S. Mann, J. Feinberg, A. Choi, M. Kaminetskaya, C. Pierce, M. Zacharewicz, B. Gavett, J. Horwitz, J. Ory, K. Carbuccia, L. Morra, S. Garcon, M. Lucas, P. Donovick, K. Whearty, K. Campbell, S. Camlic, D. Brinckman, L. Ehrhart, V. Weisser, J. Medaglia, A. Merzagora, G. Reckess, T. Ho, S. Testa, H. Woolery, C. Farcello, N. Klimas, J. Meyer, F. Barwick, K. Drayer, J. Galusha, A. Schmitt, R. Livingston, R. Stewart, L. Quarles, M. Pagitt, C. Barke, A. Baker, N. Baker, N. Cook, D. Ahern, S. Correia, L. Resnik, K. Barnabe, D. Gnepp, M. Benjamin, Z. Zlatar, A. Garcia, S. Harnish, B. Crosson, L. Vaughan, A. Fedio, J. Sexton, S. Cummings, A. Logemann, N. Lassiter, P. Fedio, A. Gremillion, D. Nemeth, T. Whittington, J. Reckow, C. Lewandowski, J. Cole, A. Lewandowski, J. Spector, L. Ford-Johnson, J. Lengenfelder, J. Sumowski, C. Morse, J. McKeever, L. Zhao, T. Leist, J. Marcinak, K. Piecora, K. Al-Khalil, P. Martin, L. Thompson, W. Kowalczyk, S. Golub, E. Lemann, J. Piehl, N. Rita, L. Moss, R. Nogin, C. Drapeau, S. Malm, L. Armstrong, R. Glidewell, W. Orr, G. Mears, C. Allen, E. Pierson, B. Kavanaugh, F. Tayim, S. Llanes, K. Poston, J. Beathard, P. Stolberg, W. Jones, J. Mayfield, J. Weller, P. Demireva, K. McInerney, T. Riddle, M. Primus, J. Highsmith, D. Everhart, K. Lehockey, S. Sullivan, S. Mandava, B. Murphy, L. Lalwani, M. Rosselli, R. Carrasco, S. Zuckerman, J. Brand, M. Rivera Mindt, S. Schaffer, K. Alper, O. Devinsky, W. Barr, K. Langer, J. Fraiman, J. Scagliola, E. Roman, A. Martinez, K. Konopacki, A. Juliano, D. Whiteside, G. Widmann, M. Franzwa, B. Sokal, E. Morgan, M. Bondi, L. Delano-Wood, R. Cormier, N. Cumley, M. Elek, M. Green, A. Kruger, L. Pacheco, G. Robinson, H. Welch, D. Parriott, S. Loe, L. Hughes, L. Natta, W. Quenicka, K. McGoldirck, T. Bennett, H. Soper, S. Collier, M. Connolly, M. Di Pinto, E. Handel, K. Davidson, E. Livers, S. Frantz, J. Allen, T. Jerard, S. Sakhai, S. Barney, K. McGoldrick, J. Sordahl, N. Torrence, and S. John

Subjects
Psychiatry and Mental health, Clinical Psychology, Neuropsychology and Physiological Psychology, General Medicine
Published
2012
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10. Ab initio investigation of radiation defects in tungsten: Structure of self-interstitials and specificity of di-vacancies compared to other bcc transition metals

Author

I. Ginoux, L. Ventelon, M. Heran, Francois Willaime, and Chu-Chun Fu

Subjects
Nuclear and High Energy Physics, Materials science, Condensed matter physics, Binding energy, Fermi level, Tantalum, chemistry.chemical_element, Tungsten, Rhenium, Pseudopotential, Condensed Matter::Materials Science, symbols.namesake, Nuclear Energy and Engineering, chemistry, Vacancy defect, symbols, General Materials Science, Atomic physics, Electronic entropy
Abstract

The results of DFT calculations on radiation point defects in tungsten are presented. The lowest energy configuration of the self-interstitial has exactly the 〈1 1 1〉 orientation and no tilt from this direction is observed when using appropriate cell geometry and pseudopotential. The present DFT calculations confirm that in pure tungsten the interactions between two vacancies are unexpectedly repulsive until the fifth nearest-neighbor and that the second nearest-neighbor di-vacancy is the most repulsive. The electronic entropy contribution to the free energy makes the nearest-neighbor configuration attractive at high temperature. A comparison with other bcc metals shows that the binding energies between two vacancies are strongly metal dependent and that tungsten leads to the largest deviation from empirical potential predictions. In tungsten, the effect on vacancy properties of alloying by tantalum and rhenium has been investigated using the Virtual Crystal Approximation (VCA). The effect of these alloying elements is essentially to change the filling of the d-band and the vacancy formation energy is found to be maximal and the relaxation to be minimal when the Fermi level is at the minimum of the pseudo-gap, as predicted by previous tight-binding calculations. Di-vacancies are shown to become attractive at first and second nearest-neighbor upon tantalum alloying and even more repulsive upon rhenium alloying.

Published
2012
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11. Performance of a Novel Hybrid Membrane Bioreactor: Effect of Bacterial Floc Size on Fouling

Author

F. Pajoum Shariati, M.R. Mehrnia, M.H. Sarrafzadeh, S. Rezaee, P. Mohtasham, C. Wisniewski, and M. Heran

Subjects
lcsh:Computer engineering. Computer hardware, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, lcsh:TP155-156, lcsh:TK7885-7895, lcsh:Chemical engineering, ComputingMilieux_MISCELLANEOUS, ComputingMethodologies_COMPUTERGRAPHICS
Abstract

preview not available - see full-text PDF article.

Published
2011

12. Influence of module configuration and hydrodynamics in water clarification by immersed membrane systems

Author

P Choksuchart, Sridang, M, Heran, and A, Grasmick

Subjects
Chlorides, Air, Temperature, Ultrafiltration, Membranes, Artificial, Equipment Design, Stress, Mechanical, Ferric Compounds, Biotechnology, Water Purification
Abstract

Different immersed membrane systems were compared according to the module configuration. Filtering concentrated aqueous suspensions under constant permeate flux, the hydraulic performances of the systems were evaluated and compared through parameters such as critical permeate flux notion and trans-membrane pressure variation rates. Operational variables were membrane size and module fibre density, aeration inside or outside the fibre network, suspension concentration and physico-chemical conditioning. When using hollow fibres including a possible air injection inside the fibre network, results pointed out the positive role of the aeration on the fouling control. But too high a fibre density did not allow an optimal control when the aqueous suspension was very concentrated. On the other hand, when working with capillary membranes showing sufficient space between fibres, the major parameters were the transversal suspension flow circulation through the fibre network and the FeCl3 conditioning of the suspension. Experimental results show a possible working at a 0.07 m3 x m2 x h(1) permeate flow rate under low TMP evolutions, 0.02 Pa/s, even if the filtration was operated under high concentrated suspension, 5kgSS/m3.

Published
2005

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