966 resultados para BON-7-B
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Top Row: Fonya Atabong, Aimee Austria, Holly Baier, Jayna Ballard, Stephanie Baranek, Karen Barron, Elizabeth Behnan, Jennifer Bohl, Sarah Bombery, Carissa Bonner, Emily Brady, Jennifer Bristol, Carrie Brown, Christine Brown, James Cahill, Katie Campbell, PMichelle Carley, Shandra Caylor, Maureen Cebula
Row 2: Jinhwa Chung, Pamela Clay, Erin Cockrell, Desiree Conyers, Sarah Crow, Kimberly Deblasis
Row 3: Melissa Donoran, Sarah Ehlke, Shelly Eizyk, Marianne Erwin, Lauren Feighner, Sara Fetzer
Row 4: Miranda Finn, Lora Fisaga, Sarah Fortman, Sarah Gattis, Nicole Grace, Gail Grigsby
Row 5: Sandra Hakeos, Stephanie Hanchak, Kacee Harris, Nicole Hawkins, Molly Hedges, Jennifer Heeren
Row 6: Mary Herndon, Valerie Hintz, Holly Hopkins, Julie Houslander, Kaitlyn Jakubec, Kathryn Jannausch
Row 7: Lisa Kantor, Amy Kaplan, Jennifer Kinch, Patricia Coleman-Burns, Carol Loveland-Cherry, Ada Sue Hinshaw, Judith Lynch-Sauer, Barbara Guthrie, Sarah Knapp, May Kuo, Deanna Kurtz
Row 8: Mary Lambert, Erin Lowen, Anahid Magar, Lindsey Balzhiser, Monique Grinnell, Julie Heringhausen, Rachel Karwick, Jane MaCaulay, Samantha Peck, Kelli Stewart, Ngan Thai, Erin Tuttle, Julie Wilner, Jill McCarty, Caitlin McClellan, Jessica McEntee
Row 9: Kelli McGee, Katrina Melonakos, Kimberley Munn, Inder Narula, Lauren Nielsen, Kristin O'Mara, Pamela Obriot, Kate Organ, Kelly Owens, Mindy Pallas, Debbie Lynn Paylor, Johanna Phillips, Jamie Pikus, Krista Ponagai, Kristin Putnam, Corinne Quinlan, Megan Rathburn, Tina Rayburn, Natalie Render
Row 10: Jennifer Riske, Rebecca Robison, Monica Rochman-Wallace, Amanda Ross, Lindsey Rubritius, Katherine Russell, Julie Sarkesian, Teya Schoening, Gabrielle Schultz, Margaret Secor, John Seeburger, James Shannon, Suzanne Smith, Mary Catherine Steer, Erin Stevens, Margaret Stilec, Carolynne Suveg
Row 11: Jesse Szczak, Angela Szydlek, Salisa Thompson, Kristin Toyofuku, Prescilla Tshiamala, Vickey Vaclavek, Karen Van Eck, Julie VanHammersveld, Jennifer Ventimiglia, Sarah Wachler, Rachel Walts, John Weeks, Amber Williams, Melody Williston, Jessica Woolworth
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Top Row: Rebecca Adams, Leslie Babich, Katherine Banas, Lori Barnett, Stacey Bednarz, Kelly C Berryman, Adam Brieger, Tina Brown, Kimberly Burleigh, Anne Byrne, Julia Carl, Terra Caswell, Angela Chabot, Molly Colgan, Desiree Conyers, Amy Cook, Melissa Cooley, Ashley Cooper, Morgan Cornell
Row 2: Delphine Cornet, Laura Cortina, Casey Cox, Bradley Crow, Lauren D'Agostino, Katelyn Davis, Kara Dendrinos, Rachael Dunckel, Carolyn Ellis, Kristin Ellis
Row 3: Deonna French, Erin Gasser, Amanda George, Michelle Gilmore, Jacquelene Goyett, LaRonda Gracia, Tera Greenberg, Tracy Guzzardo, Amy Hamlin Tapper, Shawn Hathaway
Row 4: Jennifer Heller, Michele Hetfield, Hilary Heuer, Christen Hicks, unknown, Melissa Jenkins, Terri Jobkar, Jennifer Keller, Karissa Kerg, Katherine Kern
Row 5: Keri Kingma, Amanda Kristofik, Brigid Kutner, Melissa LaDuke, Lorraine Law, Katherine Lawler, Allison Ledtke, Corinne Lee
Row 6: Kerrie Lemerand, Kristen Maki, Smith Margaret, Cynthia Mathew, Thomas Mazzocco, Cara McAlpin
Row 7: Lana McCarthy, Erin McKeever, Nicolyn Meek, Patricia Coleman-Burns, Carol Loveland-Cherry, Judith Lynch-Sauer, Ada Sue Hinshaw, Barbara Guthrie, Marge Calarco, Carolyn Sampeselle, Joanne Pohl, Therese Messing, Rachel Milkowski, Renee Miller
Row 8: Andrea S Miller, Stephanie Mizer, Melissa Morgan, Heather Bidgoli, Elisa Brunetto, Jessica Cleghorn, Jade Curry, Ashley Dorow, Megan Finn, Lisa Gruen, Margaret Kelemen, Andrea Munger, Elizabeth Spencer, Mary Vanderweele, Abigail Vertalka, Jackelyn Ng, Phuong Nguyen, Gracia Nicolaescu
Row 9: Laura Norris, Elizabeth Osborn, Lavinia Pacurar, Carly Palmer, Kristine Parish, Jill Patterson, Mary Pepper, David Perout, Michael Pfeifer, Kristin Phillips, Susanne Pickman, Vanessa Polly, Sabrina Porter, Christina Quillan, Lauren Ramoie, Natasha Rivers, Teresa Roberts, Megan Robertson, Byanqa Robinson
Row 10: Mary Rodzik, Kimberly Sanders, Weber Sasha, Rebecca Scheiblauer, Taylor Schmidt, Jacquelyn Schrot, Tanya Shisler, Daniel Shivel, Sophia Shyu, Michelle Skurulsky, Melissa Smalligan, Erin Sorensen, Allison Spinweber, Lindsay Steiger, Natalya Stokely, Karen Stoneburner, Katherine Stout, Stephanie Swihart, Aaron Taylor
Row 11: Lori Thome, Christopher Thuer, Carolyn Trabka, Kathryn Trommbley, Valerie Tumbleson, Stacey Ventola, Dana Verkade, Caitlyn Vert, Angela Videto, Kari Wanless, Abby Wegener, Stephanie Westphal, Eric Williams, Whitney Zachritz, Amber Zemer, Joanna Zizzo, Chelsea Zussman
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Top Row: Alexis Adamjee, Jennifer Ahlquist, Crista Andress, Dawn Arringdale, Freda Ayensu, Genevieve Balangero, Maureen Berlucchi, Amanda Bevier, Nina Bibicoff, Rachel Black, Denise Black, Jackie Braun, Kristen Bryant, Betty Burgner, Julie Butchart, Nicholas Cameron, Jessica Carver, Christine Cha, Kelly Clement
Row 2: Lauren Cochran, Kathleen Connell, Amanada Cooperwasser, Lindsay Cousino, Lindsey Evans, Stephen Kilijanczyk, Kathryn Evans, Kathryn Bucrek, Ida Elise Broadwater, Renee Havey, Sharon Warner, Katie Darnell, Katrina DeWitt, Kolleen Kowalske, Keather Rechtweg, Kristen Cowan, Alison Damioli, Dinah Denton, Melinda Dobie
Row 3: Rosemarie Donnelly, Kelly Doyle, Deanna Dusseau, Jacqueline Elegant, Ashley Faulk, Kristin Ferszt, Christine Catalan, Sarah Borgstadt-Smith, Paul Holtz, Tracy Jakubiec, Chemari Justice, Patricia Oppenheim, Kelly Fleming, Melissa Foster, Emily French, Tracy Gallo, Kathie Garrett, Jacqueline Garry
Row 4: Monique Gennari, Megan Gerlinger, Deborah Glazer, Terah Griggs, Edward Grosser, Kristy Haigh, Amanda Halbert, Jennifer Hammer, Emily Harris, Erin Harris, Elizabeth Hassenrik, Elizabeth Heinbeck
Row 5: Brianna Hirsch, Jessica Hoffman, Heather Hoffner, Bridget Holtz, Melissa Housefield, Sarah Hudson, Kathy Huffnagle, Hilary Hunt, Ashley Jannesen, Lauren Jarvis, Sarah Jarvis, Younhee Jee
Row 6: Ruth Jensen, Janet Wilson Johnston, Brandi Josephs, Amy Kangwankij, Julie Kramb, Dianna Krankurs, Allan Kucab, Kimberly Lai, Sarah Layher, Erin Layher, Dung Le, Hedy Leiter
Row 7: Lauren Loftus, Michael Long, Caroline Loukotka, Shoshana Love, Norma Martinez, Kristen McElreath, Lindsi McErlean, Renee McGlone, Lynne McIntosh, Ian McLelland, Ashley Mester, Anika Meyers
Row 8: Elizabeth Miles, Sarah Miller, Juliana Moore, Nicole Nastanski, Sarah Neighbours, Emily Newman, Judith Lynch-Sauer, Patricia Coleman-Burns, Judith Wismont, Kathleen Potempa, Carol Loveland-Cherry, Carolyn Sampselle, Joanne Pohl, Katie Pace, Bethany Panyard, sejal Patel, Chelsea Patnoude, Amy Jo Perry, Joseph Piotrowski
Row 9: Kate Pittel, Natalie Podolsky, Jessica Pollman, Nicole Pratt, Laura Ready, Amanda Retzbach, Katie Richards, Nicole Rico, April Robertson, Meighan Robinson, Stephanie Robinson, Talia Roesner, Autumn Romanowski, Anne Sage, Sally Scharg, Melissa Schultz, Renee Shelton, Natalie Sherry
Row 10: Rebecca Siereveld, Karen Simon, Emily Sosnowski, Elissa Stier, Darcy Stoll, Nicole Sukich, Erin Sykes-Miller, Tami Szuba, John Tallman, Michelle Taylor, Ashley Thelen, Gina Thomas, Rachel Tovian, Yuanyuan Wan, Nicole Young
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Top Row: Therese Adamowski, Anel Adamson, Michelle Ahleman, Brooke Babineau, Jennifer Ballough, Lisa Anne Beckman, Jennifer Bergeren, Tedra Boedigheimer, Mary Bonner, Genevieve Bott, Megan Bouwhuis, Mitchell Bradley, Rachel Brown, Katherine Bulson, Jennifer Calhoun, Carley Cebelak, Sarah Choinard
Row 2: Sarah Clevenger, Elizabeth Anne Conway, Erin Coughlin, Karie Curtis, Stephanie Curtis, Jodi Danhof, Rebecca Debri, Stacie Deleszek, Andrea Dehline, Amanda Devlin, Charlotte Dietrich, Angela Dodge, Elizabeth Dougherty, Ashley Doyle, Lindsay Driver, Nancy Duckworth, Kathy Dunnuck, Jennifer Dziadaio, Ellen English
Row 3: Kelly Esser, Amanda Fender, Lindsey Smith, Andrew Bradburn, Fallon Garfield Turner, Margaret Dembeck, Courtney Van Essen, Jessica paige Smith, Lauren Inouye, Jacqueline Dufek, Emily Klump, Amanda Jones, Tiffany Burrell, Deborah Mitchell, Emily Michel, Michelle Steen, Kirsten Thulin, Emily Hautamaki, Sheila Fender, Keith Ferguson
Row 4: Annie Fields, Jillian Fisher, Erin Flatley, Renee Forma, Aileen Franchi, Lindsey Freysinger, Sarah Fulgenzi, Beth Funnell, Andrea Galaviz, Lacey Garbo, Katherine Garcia, Lynn Garofalo
Row 5: Heather Gehrke, Nicole Genrich, Katie Giordano, Lindsey Glover, Andrea Godfrey, Jocelyn Gossman, Alana Greenberg, Julien Guttman, Sarah Halfmann, Kimberly Hanger, Allison Hanson, Stephanie Hecklin
Row 6: Geri Helminiak, Kristi Hershiser, Erin Hipp, Amanda Hoath, Tracy Hurlbutt, Nadya Indrei, Nisa Joorabchi, Katy Kerrigan, Layne Kiella, Jessica Kim, Samantha Klaiman, Jodi Knight, Laura Kovacic, Alicia Kreger
Row 7: Amanda Kretsch, Kimberly Kurzeja, Julie Lamonoff, Sarah Leirstein, Ashley Labb, Suzanne Loeb, Alessandra Lollini, Heather Loomis, Caroline Luke, Stephanie Maniquis, Elizabeth Mann, LaTasha Marable, Amanda McAdams, Mara McKinley
Row 8: Leah McLaughlin, Erin Migda, Scott Migut, Joane Nwoke, Lazarus Okammor, Brittany Pajewski, Judith Lynch-Sauer, Patricia Coleman-Burns, Bonnie Hagerty, Kathleen Potempa, Carol Loveland-Cherry, Carolyn Sampselle, Joanne Pohl, Sarah Pajtas, Maria Paneda, Jennifer Parker, Carol Peterson, Kimberley Peven, Rachel Poterek, Sarah Poucher
Row 9: Jannet Provost, Jessica Quigley, Nicole Rasmuson, Joanthan Reed, Sharon Reske, John Reves, Amy Riebe, Sara Riegner, Kelly Risicato, Christine Sabado, Stephanie Sargent, Jolene Schaefer, Erin Schroeder, Catherine Scott, Katherine See, Andrea Semaan, Jessica Shantz, Kathryn Sibbold, Kathleen Skendrovic, Aaron Smith, Elizabeth Stanton
Row 10: Mary Stewart, Ashley Strotbaum, Danielle Swartz, Janet Trost, Elizabeth Underwood, Lauren Underwood, Allison Vanhall, Brian Velker, Kristen Wells, Ryan Werblow, Jennifer Werden, David Westrin, Mallory Wiesen, Karen Wingrove, Amy Wright, Carrie Wright, Emily Wright, Minou Xie, Charles Zimmerman
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Top Row: Allison Anderson, Meghan Archer, Christopher Aten, Meredith Bajor, Sarah Belleville, Kimberly Bergere, Courtney Bernier, Diana Blanks, Julie Bluhm, Melanie Bork, Karyn Braley, Kathryn Melody Briones, Christine Brouillard, Alyson Bryson
Row 2: Amy Burk, Kelly Capellari, Carmon Carlson, Krystal Cavaliere, Jeffrey Chiambretti, Christine Cho, Renee Christopher, Holli Clewis, James Conway, Kelly Courtney, Jenna Dahn, Erin Daly, Nicole DeFauw, Stefanie DeVita, Jessica DiVirgil, Debra Dombrowski, Genevieve Donnell
Row 3: Kathleen Donnelly, Jennifer El Aile, William Faulkner, Kimberly Johnson, Danielle Alameda, Margaret Wheeler, Brian D Kaminski Jr, Bridget Fil, Rochelle Weller, Leslie Allen-Huisman, Jennifer Musbach, Kathy Feig, Lori Fellows, Shana Ferguson
Row 4: Lauren Frawley, Ashton Frederick, Molly Gacetta, Stephanie Ganger, Amanda Garcia, Megan Gdowski, Chad Godfrey, Emily Halpern
Row 5: Katherine Hammons, Natalie Hecht, Danielle Hiltz, Taylor Hosner, Jennifer Huber, Holly Huling, Nathaniel Hunt, Ana-Leonor Jay
Row 6: Rachel Jeltema, Jennifer Jones, Lindsey Jones, Sarah Kaherl, Jessica Kehbein, Kendra Leidecker, Vanessa Lelli, Meghan Lemmer, Rachel Levinson, Alexandra Lindsay
Row 7: Amanda MacDonald, Joelle Marineau, Laura Mason, Andrea Masser, Michele McKinney, Charles-Robert Moultry, Kathleen Potempa, Bonnie Hagerty, Nicole Nader, Minna Navvab, Rachael Newnam, Uche Obua, Sara Oles, Ceren Onsan-Fitzpatrick
Row 8: Emily Parobek, Dorasy Paul, Rosalynne Pinga, Sarah Pope, Laura Randall, Sarah Reits, Emma Rew, Annemarie Rozwadowski, Nicole Ruhlman, Lydia Sanok, Grace Savercool, Kimberly Schmidt, Renee Schoenborn, Lisa Schuman, Kaitlyn Seltzer, Catherine Sherwood, Elizabeth Smith
Row 9: Aimee Surma, Stephanie Swinteck, Hanna Taylor, Donnie Tietsema, Andreea Toader, Stephanie Upplegger, Meghan Visnick, Scharnice Ward, Tabytha Whitley, Kimberly Wilke, Carie Wright, Kyleen Young, Kristin Zawacki, Christina Ziegler, Carlotta Zirker
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Top Row: Jocelyn Aden, Rachel Ades, Katrina Allen, Kayla Ashcraft, Kristie Baker, Amy Beaudoin, Heidi Beck, Beth Bentrum, Amber Blake, Lee Anna Braden, Dan Burd, Meaghan Burke, Mallory Calus, Irene Casillas, Veronica Cherney, Samantha Cholewa, Molly Conlen
Row 2: Wendy Corriveau, Meaghan Cotter, Kara DeGlopper, Colleen DeVoe, Hadley Dobbs, Kimberly Drury-Wallace, Hyesun Eitel, Sarah Elner, Douglas E. Elsey, Alyssa Fallot, Folake Famoye, Kristen Farr, Christine Fleck, Jennifer Fleming, Soncerae Gardner, Sarah Gilley, Joelle Gilmet
Row 3: Sara Goss, Amy Guffey, Taylor Griglak, Bridget Belvitch, Jaclyn Janks, Andrea Engles, Cassandra Smith, Lyndsy Brenner, Mallorie Patterson, Kristen Oltersdorf, Laura Kokx, Ross Zoet, Mary Osbach, Courtney Norman, Monica Habeck, Erica Hadley
Row 4: Amanda Hanert, Dayna Hasty, Nicole Heller, Ashley Howard, Robert Humburg, Andrew Humes, Grace Hwang, Amira Jackson, Kathryn Jipping, Shelly Johnson
Row 5: Lindsey Kappler, Jacqueline Klaiman, Sarah Knoedler, Jessica Kopicki, Kathryn Kovanda, Sarah Kovats, Emily Krogel, Kellie Kunkel, Kristin Lakatos, Chelsea Lazaroff, Bo Hwa Lee, Kelly Leja
Row 6: Kelli Littlejohn, Emilee Losey, Patricia Luna, Wilma MacKenzie, Matt Malkowski, Rachel Mallas, Emily McCallister, Diane McDonald, Dorian Michelson, Mary Miller, Nicole Miller, Kristen Muehlhauser
Row 7: Renee Muller, Katherine Mulvaney, Eugene Ngala, Christine Novotny, Colleen O'Connor, Cassey Parrish, Kimberly Peters, Kathleen Potempa, Bonnie Hagerty, Heather Poucher, Charles Reisdorf, Eric Retzbach, Sarah Rhem, Shannon Rice, Amy Roberts, Christie Schonsheck
Row 8: Franciska Schuett, Rhonda Schultz, Kristina Seidl, Teresa Semaan, Shelley Sibbold, Stacy Slater, Mary Snell, Mallory Stanton, Dennis Stevens, Miranda Stoddard, Tatiana Tafla, Priscilla Tang, Bethany Thelen, Jessica Thibert, Rebecca Thurk, Lauren Tormoehlen, Chinasa Uwandu
Row 9: Margaret van Buitenen, Stacey Victor, Jennifer Waag, Kirstyn Wade, Ariel Warren, Elizabeth White, Natalie Wierenga, Jessica Wihowski, Wendy Witkowski, Aliza Wolfe, DaShaunn Woolard, Ting Wan Yip, Alexander Young, Kellie Zenz, Kristen Ziulkowski, Jessica Zmierski
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Top Row: Dereje Amente, Grace Baek, Anne Benitez, Anna Berry-Krumrey, Amber Blake, Daniela Bravo-Corona, Shelley Brenner, Melissa Butzky, Ann Cassel, Chantal Chin, Mee-Sook Choo, Stephanie Clapham, Kathryn Clark, Joseph Cleary, Stephanie Conn, Casie Cook
Row 2: Christina Cook, Jessica Cook, Renea Cox, Marissa DaSilva, Kathryn Davenport, Ashley Deford, Alyse DeHaan, Maria Didio, Alyssa Diroff, Amy Doenitz, Emily Domansky, Deanna Dong, Ross Drake, Brian Dulzo, Michelle Dwyer, Jill Eberly, Rachel Escobar, Kathryn Falvey
Row 3: Michelle Fauver, Paula Fe Francisco, Lindsey Frick, Amannda Casper, Ashley Pickett, Kristin Kingma, Thomas Donnelly, Danielle Besk, Kimberly Cristobal, Heather Erdmann, Jessica Kramer, Ana Kotsogiannis, Sarah Bloom, Anna Evola, Melissa Dulic, Anna Garcia, Christopher Gargala, Thomas Geigert
Row 4: Megan Giles, Kristen Gniewkowski, Alexandra Gold, Sarah Gorzalski, Michele Grabow, Amber Gramling, Hannah Gregerson, Maria Hegan, Wendy Hastings, Ahsley Hayner
Row 5: Leanne Heilig, Lauryn Hildensperger, Rachel Hollern, Laura Jean Howatt, Eve Jaehnen, Stephanie Johnson, Peter Kachur, Rachelle Kilburg, Rachel Klein, Sara Klok, Caitlyn Kochanski, Valerie Kotal
Row 6: Lidia Kraft, Allison Kruger, Omotara Kufeji, Jill Kuhlman, Karah Kurdys, Kathryn Lang, Elsa Lindquist, Sara Mangus, Kathryn Marten, Samantha Maskell, Lauren McBride, Kelly McCarley
Row 7: Rachel McClure, Angela McCracken, Mallory Missad, Kathleen Murray, Mariko Nakagawa, Jaclyn Nancekivell, Tracey Negrelli, Kathleen Potempa, Bonnie Hagerty, Healee On, Sarah Osentoski, Kelsey Owens, Kelly Paulisin, Amanda Phillips, Emily Pressley, Kaitlyn Radius
Row 8: Rebecca Reits, Elin Ridenour, Amanda Robbins, Chayla Robles, Jessica Roossien, Alyssa Roy, Leslie Russell, Kristen Ruster, Cynthia Scheuher, Julie Schramm, Kim Schroers, Jennifer Schwartz, Kelly Seestedt, Shannon shank, Andrea Sherzer, Lauren Sir, Erinn Smith, Kathleen Soedarjatno
Row 9: Jessica Stefko, Alexandra Stencel, Brianne Stowell, Alexandra Suseland, Lauren Taylor, Deborah Thornton, Amanda Timmer, Daniel Tjarks, Jillian Traskos, Graham Valley, Sarah Wade, Rachel Wagner, Drew Wakefield, Marlena Westerlund, Katie Wheelock, Jennifer Wilcox, Dana York
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Reed Smoot, chairman.
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Bookseller's advertisements, pages [23]-[26] at end.
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The crystal structure of the extracellular domain of growth hormone receptor complexed to its ligand, growth hormone, has been known since 1992. However, no information exists for the unliganded form of the receptor. The human growth hormone receptor's extracellular ligand-binding domain, encompassing amino-acid residues 1 - 238, has been expressed in Escherichia coli, purified by anion ion-exchange chromatography and crystallized in its unliganded state by the hanging-drop vapour-diffusion method in 100 mM HEPES pH 7.0 containing 27.5%(w/v) PEG 5000 monomethyl ether and 200 mM ammonium sulfate as the co-precipitants. The crystals belong to the othorhombic space group C222(1), have unit-cell parameters a = 99.7, b = 112.2, c = 93.2 Angstrom and diffract to 2.5 Angstrom resolution using synchrotron radiation. The crystal structure will shed light on the nature of any conformation changes that occur upon ligand binding and will provide information to develop potential low-molecular-weight agonists/antagonists to treat clinical diseases in which the growth hormone receptor is implicated.
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The structure and spin-crossover magnetic behavior of [FeII16][BF4]2 (1 = isoxazole) and [FeII16][ClO4]2 have been studied. [FeII16][BF4]2 undergoes two reversible spin-crossover transitions at 91 and 192 K, and is the first two-step spin transition to undergo a simultaneous crystallographic phase transition, but does not exhibit thermal hysteresis. The single-crystal structure determinations at 260 [space group P3̄, a = 17.4387(4) Å, c = 7.6847(2) Å] and at 130 K [space group P1̄, a = 17.0901(2) Å, b = 16.7481(2) Å, c = 7.5413(1) Å, α = 90.5309(6)°, β = 91.5231(6)°, γ = 117.8195(8)°] reveal two different iron sites, Fe1 and Fe2, in a 1:2 ratio. The room-temperature magnetic moment of 5.0 μB is consistent with high-spin Fe(II). A plateau in μ(T) having a moment of 3.3 μB centered at 130 K suggests a mixed spin system of some high-spin and some low-spin Fe(II) molecules. On the basis of the Fe−N bond distances at the two temperatures, and the molar fraction of high-spin molecules at the transition plateau, Fe1 and Fe2 can be assigned to the 91 and 192 K transitions, respectively. [FeII16][ClO4]2 [space group P3̄, a = 17.5829(3) Å, c = 7.8043(2) Å, β = 109.820 (3)°, T = 295 K] also possesses Fe1:Fe2 in a 1:2 ratio, and magnetic measurements show a single spin transition at 213 K, indicating that both Fe1 and Fe2 undergo a simultaneous spin transition. [FeII16][ClO4]2 slowly decomposes in solutions containing acetic anhydride to form [FeIII3O(OAc)613][ClO4] [space group I2, a = 10.1547(7) Å, b = 16.5497(11) Å, c = 10.3205(9) Å, β = 109.820 (3)°, T = 200 K]. The isosceles Fe3 unit contains two Fe···Fe distances of 3.2844(1) Å and a third Fe···Fe distance of 3.2857(1) Å. The magnetic data can be fit to a trinuclear model with ℋ = −2J(S1·S2 + S2·S3) − 2J13(S1·S3), where J = −27.1 and J13 = −32.5 cm-1.
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Approaches to quantify the organic carbon accumulation on a global scale generally do not consider the small-scale variability of sedimentary and oceanographic boundary conditions along continental margins. In this study, we present a new approach to regionalize the total organic carbon (TOC) content in surface sediments (<5 cm sediment depth). It is based on a compilation of more than 5500 single measurements from various sources. Global TOC distribution was determined by the application of a combined qualitative and quantitative-geostatistical method. Overall, 33 benthic TOC-based provinces were defined and used to process the global distribution pattern of the TOC content in surface sediments in a 1°x1° grid resolution. Regional dependencies of data points within each single province are expressed by modeled semi-variograms. Measured and estimated TOC values show good correlation, emphasizing the reasonable applicability of the method. The accumulation of organic carbon in marine surface sediments is a key parameter in the control of mineralization processes and the material exchange between the sediment and the ocean water. Our approach will help to improve global budgets of nutrient and carbon cycles.
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At a longtime station near the "Grosse Meteor Bank" in the North Atlantic 41 subsequent hauls were made in April 1967 with the Helgoland larva net with changing bucket device. In addition 9 hauls were made during July 1967. The catches from the depth ranges of 900-700 m, 700-500 m, 500-300 m, 300-200 m, 200-100 m, and 100-0 m were collected in separate buckets during each catch series. Contamination, though possible on principle, does not seem to be of much consequence in appendicularia. After some comments on certain species caught it is shown that at this station in the open ocean the density of appendicularia not only varies with the season, but that clouds of plankton may pass by it within a few hours, in which the density may vary at a ratio of ten or more to one. In the composition of species as many as four species may in turn be the most abundant. For one species the composition as to size and stage of maturity may change in the same way. Regarding the depth distribution there are no species restricted to deeper layers. Below 100 m the number falls to about 1 % of the uppermost layer. Oikopkura longicauda, O. cophocerca, O.parva and Althoffia tumida as well as Fritillaria species are found between 900 and 100 m in comparatively higher numbers than Stegosoma magnum, Oikopleura albicans and O. intermedia. The Chaetognaths were collected in the depth of 900-0 m in vertical hauls with the Helgoland larva net with changing bucket device; buckets had been changed in the depth of 700, 500, 300, 200,1 00 m. In the course of the investigation it appeared that for Chaetognaths the sampling method with changing bucket device is insufficient. Many specimens remained in the net and entered the bucket at a higher level than that in which they had lived, mostly during flushing the net (sample 100-0 m); this means considerable contamination. In spite of this difficulty deep layers of higher abundance could be traced for Sagitta lyra and some other species. For some species large local variations in the number of specimens within a short time were found. Moreover notes have been made of foodorganisms, parasits and anatornic metamorphoses during maturing.
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The strong selection pressure exerted by intensive use of glyphosate in cultivated areas has selected populations of the Rubiaceae weed species Borreria latifolia (Aubl.) K.Shum. (broadleaf buttonweed), Galianthe chodatiana (Standl.) E.L. Cabral (galiante) and Richardia brasiliensis Gomes (Brazilian pusley) with differential sensitivity to this herbicide in the South region of Brazil. The control of these weeds with herbicides is troublesome and signals the need to incorporate management practices of ruderal flora and crops, more sustainable and that results in more efficient control for long-term. Therefore, it is very important to expand the information about their biology and management. This study aimed: (a) select efficient methods to overcome dormancy of B. latifolia and G. chodatiana and determine how they influence the kinetics of seeds germination; (b) analyze the effects of temperature, irradiance, pH, aluminum and salinity on seed germination and initial growth of the B. latifolia, G. chodatiana e R. brasiliensis seedlings; (c) evaluate tolerance to glyphosate levels in biotypes of B. latifolia, G. chodatiana e R. brasiliensis through dose-response curves and compare two methods to evaluate herbicidal control; (d) and evaluated the effectiveness of alternative herbicides in pre-emergence and in early and late post-emergence of the three species. The treatment with KNO3 2%/3h + gibberellic acid 400 ppm resulted in higher percentage of G. chodatiana seed germination. This treatment and also the dry heat (60°C/30 min) + KNO3 2%/3h were more effective in overcoming dormancy of B. latifolia. G. chodatiana and R. brasiliensis tolerate lower temperatures during the germination process, while B. latifolia tolerate higher temperatures. B. latifolia and R. brasiliensis are positive photoblastic while G. chodatiana is indifferent to the photoperiod. B. latifolia shows higher germination and early development in pH 3, while G. chodatiana and R. brasiliensis prefer pH range between 5 and 7. B. latifolia and G. chodatiana were more tolerant to the aluminum during the germination process than R. brasiliensis. Low salt levels were sufficient to reduce the seed germination of the three species. Some biotypes of B. latifolia and R. brasiliensis showed medium-high glyphosate tolerance, not being controlled by higher doses than recommended. The G. chodatiana specie was not controlled with the highest dose used, showing a high glyphosate tolerance. The sulfentrazone, s-metolachlor and saflufenacil herbicides sprayed in pre-emergence showed high efficacy both on B. latifolia and R. brasiliensis, while chlorimuron-ethyl and diclosulan were effective only on R. brasiliensis. In early post-emergence the fomesafen, lactofem and flumioxazin herbicides efficiently controlled plants of all species, while bentazon showed high efficacy only on B. latifolia. Noteworthy the susceptibility of the G. chodatiana specie for applications in early post-emergence, because the control effectiveness and the number of effective herbicides are reduced with increasing the plant age. Many treatments with tank mix or sequencial applications with glyphosate, were effective in controlling B. latifolia and R. brasiliensis plants in advanced stage of development.
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(Artículos periodísticos)
