895 resultados para Steele, Glen
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We report ground-based atmospheric measurements and emission estimates for the halons H-1211 (CBrClF₂), H-1301 (CBrF₃), and H-2402 (CBrF₂CBrF₂) from the AGAGE (Advanced Global Atmospheric Gases Experiment) and the National Oceanic and Atmospheric Administration global networks. We also include results from archived air samples in canisters and from polar firn in both hemispheres, thereby deriving an atmospheric record of nearly nine decades (1930s to present). All three halons were absent from the atmosphere until ~1970, when their atmospheric burdens started to increase rapidly. In recent years H-1211 and H-2402 mole fractions have been declining, but H-1301 has continued to grow. High-frequency observations show continuing emissions of H-1211 and H-1301 near most AGAGE sites. For H-2402 the only emissions detected were derived from the region surrounding the Sea of Japan/East Sea. Based on our observations, we derive global emissions using two different inversion approaches. Emissions for H-1211 declined from a peak of 11 kt yr⁻¹ (late 1990s) to 3.9 kt yr⁻¹ at the end of our record (mean of 2013–2015), for H-1301 from 5.4 kt yr⁻¹ (late 1980s) to 1.6 kt yr⁻¹, and for H-2402 from 1.8 kt yr⁻¹ (late 1980s) to 0.38 kt yr⁻¹. Yearly summed halon emissions have decreased substantially; nevertheless, since 2000 they have accounted for ~30% of the emissions of all major anthropogenic ozone depletion substances, when weighted by ozone depletion potentials.
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Biomineralization in the marine phytoplankton Emiliania huxleyi is a stringently controlled intracellular process. The molecular basis of coccolith production is still relatively unknown although its importance in global biogeochemical cycles and varying sensitivity to increased pCO2 levels has been well documented. This study looks into the role of several candidate Ca2+, H+ and inorganic carbon transport genes in E. huxleyi, using quantitative reverse transcriptase PCR. Differential gene expression analysis was investigated in two isogenic pairs of calcifying and non-calcifying strains of E. huxleyi and cultures grown at various Ca2+ concentrations to alter calcite production. We show that calcification correlated to the consistent upregulation of a putative HCO3- transporter belonging to the solute carrier 4 (SLC4) family, a Ca2+/H+ exchanger belonging to the CAX family of exchangers and a vacuolar H+-ATPase. We also show that the coccolith-associated protein, GPA is downregulated in calcifying cells. The data provide strong evidence that these genes play key roles in E. huxleyi biomineralization. Based on the gene expression data and the current literature a working model for biomineralization-related ion transport in coccolithophores is presented.
Resumo:
Through the processes of the biological pump, carbon is exported to the deep ocean in the form of dissolved and particulate organic matter. There are several ways by which downward export fluxes can be estimated. The great attraction of the 234Th technique is that its fundamental operation allows a downward flux rate to be determined from a single water column profile of thorium coupled to an estimate of POC/234Th ratio in sinking matter. We present a database of 723 estimates of organic carbon export from the surface ocean derived from the 234Th technique. Data were collected from tables in papers published between 1985 and 2013 only. We also present sampling dates, publication dates and sampling areas. Most of the open ocean Longhurst provinces are represented by several measurements. However, the Western Pacific, the Atlantic Arctic, South Pacific and the South Indian Ocean are not well represented. There is a variety of integration depths ranging from surface to 220m. Globally the fluxes ranged from -22 to 125 mmol of C/m**2/d. We believe that this database is important for providing new global estimate of the magnitude of the biological carbon pump.
Resumo:
Reuse of record except for individual research requires license from Congressional Information Service, Inc.
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Back Row: Dick Lindenfeld, Frank Gusich, Robert Rosema, Mike Smith, William Ross, Dennis Connell, Scott Hulke, Tom Alexander, ?, Jim Schmitz
8th Row: Ed Woolley, Tom Huiskens, Paul Seymour, Reggie McKenzie, Donald Shaw, Jim Brandstatter, Mike Oldham, Fred Grambau, Tom Beckman
7th Row: Guy Murdock, Fritz Seyferth, Bruce Elliott, Allen Carpenter, Mike Keller, Dave Zuccarelli, Dana Coin, Preston Henry, George Mans
6th Row: Michael Taylor, Tom Darden, Tom Nieman, John Wolff, Gerald Dutcher, Ed Baldwin, Glen Doughty, William Taylor, Louie Lee*
5th Row: Bill Berutti, Thomas Takach, Lance Scheffler, Dick McCoy, Pete Newell, Dan Parks, Bill Harris, Greg Harrison, Jim Young*
4th Row: George Zuganelis, Paul Staroba, Jim Betts, Jack Harpring, Marty Huff, Ed Moore, Don Moorehead,Tim Killian, Frank Maloney*,
3rd Row: Henry Hill, Robert Ritley, Joe Lukz, Timothy Wadhams, Richard Brown, Eric Federico, Mark Werner, Dan Dierdorf, Robert White, Chuck Stobart*
2nd Row: Jerry Hanlon*, Dick Hunter*, Gary Moeller*, Larry Smith* Morris Abrahams, Jerry Imsland, Joe Jones, Barry Pierson, Richard Caldarazzo, Al Francis, Peter Sarantos, Werner Hall, Mike Hankwitz, coach Bo Schembechler
Front Row: Phil Seymour, Frank Titas, Bob Baumgartner, Tom Curtis, captain Jim Mandich, Brian Healey, John Gabler, Garvie Craw, Cecil Pryor
* = assistant coaches
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Back Row: Jim Young, Ron Sydlowski, Dave Brandon, John Thomas, Jon Cederberg, Jovan Vercel, Jon Cherry, Lonnie Taylor, Mike Holmes, Howard Staveran, Jim Lyall, Jim Johnston, Chuck Stobart
7th Row: Art Fediuk, Walt Sexton, Kevin Masterson, Bill Moran, Gary Hainrihar, Walt Williamson, Jim Armour, Barry Dotzauer, Don Warner, Larry Johnson
6th Row: Gary Moeller, Larry Gustafson, Harry Banks, Dave Elliott, Tom Drake, Don Coleman, Paul Seal, Greg Koss, Doug Trozak, Clint Haslerig, Craig Mutch, Larry Smith
5th Row: Curtis Tucker, Geoff Steger, Mike Hoban, Mark Duffy, Dave Gallagher, Ed Shuttlesworth, Bob Thornbladh, Al West, Tom Slade, Kevin Casey, George Mans
4th Row: Jerry Hanlon, John Pighee John Middlebrook, Jim Coode, Randy Logan, Gary Coakley, Larry Cipa, Jack McBride, Tom Poplawski, Tony Smith, Alan Walker, manager Chuck Quebbeman
3rd Row: Don Eaton, Bob Rosema, Scott Hulke, Tom Kee, Bill Hart, Jerry Schumacher, Tom Coyle, David (Bo) Rather, Greg Ellis, Clint Spearman
2nd Row: Dick Hunter, Fred Grambau, Reggie McKenzie, Tom Beckman, Fritz Seyferth, Mike Taylor, Alden Carpenter, Jim Brandstatter, Mike Keller, Paul Seymour, coach Bo Schembechler
Front Row: Guy Murdock, Glen Doughty, Tom Darden, Dana Coin, Bill Taylor, Bruce Elliott, Frank Gusich, Mike Oldham, Dave Zuccharelli
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Back Row: coaches Jerry Hanlon, Chuck Stobart, Gary Moeller, Tom Reed, Jack Harbaugh, Elliott Uzelac, Dennis Brown, Bill McCartney, Jed Hughes, Tirrell Burton
8th Row: *Woody Brown, Jeff Golombiskey, Mike Smith, Rob Carian, Roger Bettis, *Kerry Bankus, Rex Mackall, Bill Cargile, *Bob Snyder, Greg Bartnick, Dave Harding, Dennis Richardson, Max Richardson, *Chuck Palanca
7th Row: Jim Pickens, Andy Jackson, Steve Nauta, Kevin King, Shaun Szenderski, Mike Kenn, *Mike Pawlowicz, Bill Dufek, Walt Downing, Mark Donahue, Paul Moore, Dominic Tedesco, Scott Corbin, John Anderson
6th Row: Derek Howard, Ken Bush, Al Canaday, Phil Brown, Curt Stephenson, Jim Hackett, Terry Stefan, Jack Heffernan, *Steve Nault, Roger Szafranski, Bill Heneveld, Aubrey Miller, Alex Johnson, Joe Holland, Dwight Hicks
5th Row: Jim Bolden, Darrell Truitt, Jerry Zuver, Steve Anderson, Pete Traber, Phil Andrews, Jim Hall, *Gary Zolciak, *Mike Boik, Jerry Vogele, Gerry Szara, Bob Lang, Steve Graves, Eric Phelps, John Ceddia
4th Row: Bob Wood, Rob Lytle, John Hennessey, Jerry Collins, Mike Strabley, *Alan Wheeler, *Matt Caputo, Chuck Randolph, Greg Strinko, Rick Koschalk, Mike Holmes, Mike Coyne, Frank Moore, Jim Smith, Phil Brumbaugh
3rd Row: Dave Whiteford, *Eduardo Gonzales, Gordon Bell, Dave Devich, Les Miles, Dan Jilek, Calvin O'Neal, Kirk Lewis, Jim Czirr, Greg Morton, Tim Davis, Keith Johnson, George Przygodski, Mark Elzinga, Jack Fairbanks
2nd Row: *Glen Franklin, Jeff Perlinger, Mike Lantry, Jim Armour, Pat Tumpane, Carl Russ, Greg DenBoer, Dave Metz, Steve Strinko, Dennis Franks, Bill Hoban, Steve King, Tom Jensen, Don Dufek, coach Bo Schembechler
Front Row: Mark Jacoby, Kurt Kampe, *Kevin Casey, Larry Johnson, Dave Elliott, Tom Drake, co-captain Dave Brown, Chuck Heater, co-captain Dennis Franklin, Gil Chapman, Geoff Steger, Harry Banks, Larry Banks, Jeff Spahn, Doug McKenzie
* did not remain with team for the season
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Back Row: Fred Mushinski, Jerry Hanlon, Lloyd Carr, Fritz Seyferth, Jerry Meter, Ron Vanderlinden, Milan Wooletich, Mike Gittleson, Les Miles, Paul Schudel, Bob Thornbladh, Bill McCartney, Tim Davis, Tirrel Burton
8th Row: Dennis Hammond, Jon Falk, Brad Maxon, Mike Melnyk, Fritz Burgess, Roger Joseph, John Lanman, Rolie Zagnoli, John Ferens, Larry Cerasi, Jeff Nate, Cedric Smith, Russ Miller
7th Row: Evan Cooper, Vincent Bean, Tom Dixon, Glen Dwyer, Nate Rodgers, Jeff Shaw, Mike Wilson, Larry Sweeney, Ron Prusa, Doug James, Bob Dana, Mike Boren, Carlton Rose, Tim Anderson
6th Row: Don Bracken, Greg Armstrong, Kerry Smith, Steve Smith, Dave Hall, Vince DeFelice, Stefan Humphries, Milt Carthens, Rod Lyles, Jerry DiOrio, Dave Meredith, Harry Gosier, Tom Hassel, Greg Powell
5th Row: Ali Haji-Sheikh, Nate Davis, Ricky Davis, John Lott, Duke Haynes, Jim Herrmann, Dan Yarano, Todd Triplett, Joe Mosketti, Scott Roberts, Marshall Parks, Kevin Smith, Bill Jacoby, Frank Raiford
4th Row: Anthony Carter, Larry Ricks, Rich Hewlett, Jerry Burgei, Keith Bostic, Jerald Ingram, Winfred Carraway, Craig Dunaway, Tom Neal, Vincent Shaw, Jeff Cohen, Don Ryan, Brad Fischer, Paul Girgash, Kenny Gear
3rd Row: Mike Czarnota, Fred Brockington, Robert Thompson, Jeff Felten, Tom Garrity, Bubba Paris, Ed Muransky, Rich Strenger, Mike Lemirande, Mark Warth*, Zeke Wallace, Cedric Coles, Sanford Washington, Tony Kelsie
2nd Row: Oliver Johnson, Brian Carpenter, Tony Jackson, Butch Woolfolk, Jim Breaugh, Fred Motley, Chuck Christian, Kelly Keough, Tom Wandersleben, Brad Bates, Norm Betts, Jeff Reeves, Marion Body, Karl Tech
Front Row: Alan Mitchell, Tony Osbun, Kurt Becker, Mike Trgovac, John Wangler, George Lilja, Mel Owens, John Powers, Gerald Diggs, Andy Cannavino, Dave Nicolau, Stan Edwards, Rod Feaster, Stu Harris, Coach Bo Schembechler
* = left the team
Resumo:
#43 Clint Copenhaver; # 93 Sam Sword; #81 Glenn Steele; #37 Jarrett Irons
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#43 Clint Copenhaver; # 93 Sam Sword; #81 Glenn Steele; #37 Jarrett Irons
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Back Row: equip. mngr. Bob Hurst, Asst. Coach Steve Fisher, mngr. Chris Schrol, mgr. Tom Alig, trainer Dan Minert, grad. asst.. Scott Tompkins, asst.. coach David Hammer, conditioning coach Gil Zimmermann
Middle Row: coach Bill Frieder, Loy Vaught, Billy Butts, Garde Thompson, Antoine Joubert, Ron Gibas, Gary Grant, Glen Rice, grad, asst.. Thad Garner, asst.. coach Mike Boyd
Front Row: J.P. Oosterbaan, Steve Stoyko, Richard Rellford, Butch Wade, Roy Tarpley, Robert Henderson. Mark Hughes, Mike Griffin.
Resumo:
Middle Row: coach Bill Frieder, asst. coach Steve Fisher, Ron Gibas. Chuck DeGlopper. Gary Grant, Antoine Joubert, Garde Thompson, Jack Kramer, asst. coach Mike Boyce, ass't coach David Hammer
Front Row: Loy Vaught, Charles Tait, Steve Stoyko, Glen Rice, Mark Hughes, Michael, Griffin, John Oosterbaan
Resumo:
Back Row: head coach Bill Frieder, asst. coach Mike Boyd asst. coach David Hammer, Kirk Taylor, Gary Grant, Steve Stoyko, Bob Tait, Rumeal Robinson, Demetrius Calip, cond. coach Gil Zimmerman, asst. coach Steve Fisher, grad. Asst. Mike Grant, trainer Dan Minert.
Front Row: equip. mngr. Bob Bland, grad. asst. Joe Czupek, Loy Vaught, Glen Rice, Mike Griffin, Sean Higgins, Chris Seter, Terry Mills, J.P. Oosterbaan, Mark Hughes, mngr. Chris Schrot, mngr. Greg Taylor.
