Now showing items 4146-4165 of 17478

    • Early Lineage Priming by Trisomy of Erg Leads to Myeloproliferation in a Down Syndrome Model 

      Ng, Ashley P.; Hu, Yifang; Metcalf, Donald; Hyland, Craig D.; Ierino, Helen; Phipson, Belinda; Wu, Di; Baldwin, Tracey M.; Kauppi, Maria; Kiu, Hiu; Di Rago, Ladina; Hilton, Douglas J.; Smyth, Gordon K.; Alexander, Warren S. (Public Library of Science, 2015)
      Down syndrome (DS), with trisomy of chromosome 21 (HSA21), is the commonest human aneuploidy. Pre-leukemic myeloproliferative changes in DS foetal livers precede the acquisition of GATA1 mutations, transient myeloproliferative ...
    • Early Marriage, Age of Menarche, and Female Schooling Attainment in Bangladesh 

      Field, Erica; Ambrus, Attila (University of Chicago Press, 2008)
      Using data from rural Bangladesh, we explore the hypothesis that women attain less schooling as a result of social and financial pressure to marry young. We isolate the causal effect of marriage timing using age of menarche ...
    • Early Mesopotamian Urbanism: A New View from the North 

      Ur, Jason Alik; Oates, Joan; McMahon, Augusta; Karsgaard, Phillip; Al Quntar, Salam (Antiquity Publications, 2007)
      For many years, the southern Mesopotamia of Ur and Uruk, ancient Sumer, has been seen as the origin centre of civilisation and cities: ‘The urban implosion of late-fourth- and early-third-millennium Mesopotamia resulted ...
    • Early Modern Floral: The Agency of Ornament in Ottoman and Safavid Visual Cultures 

      Necipoglu, Gulru (Princeton University Press, 2016)
    • An Early Modernist’s Perspective 

      Blair, Ann M. (University of Chicago Press, 2004)
      Historians of science can gain new insights into the material practices and intellectual trajectories of natural philosophers by attending to evidence of what they read and how. From the time of the early modern period we ...
    • Early Neoproterozoic Basin Formation in Yukon, Canada: Implications for the Make-Up and Break-Up of Rodinia 

      Macdonald, Francis Alexander; Halverson, Galen P.; Strauss, Justin Vincent; Smith, Emily F.; Cox, Grant; Sperling, Erik A.; Roots, Charles F. (Geological Association of Canada, 2012)
      Geological mapping and stratigraphic anaylsis of the early Neoproterozoic Fifteenmile Group in the western Ogilvie Mountains of Yukon, Canada, has revealed large lateral facies changes in both carbonate and siliciclastic ...
    • Early Neoproterozoic scale microfossils in the Lower Tindir Group of Alaska and the Yukon Territory 

      Macdonald, Francis Alexander; Cohen, Phoebe; Dudas, Francis Ő.; Schrag, Daniel P. (Geological Society of America, 2010)
      The Tindir Group is a <4-km-thick Neoproterozoic succession exposed in the Tatonduk inlier of east-central Alaska and the western Yukon Territory. The Tindir Group is informally divided into the Lower Tindir Group, which ...
    • Early Onset Alcohol Use and Self-Harm: A Discordant Twin Analysis 

      Few, Lauren R.; Werner, Kimberly B.; Sartor, Carolyn E.; Grant, Julia D.; Trull, Timothy J.; Nock, Matthew K.; Bucholz, Kathleen K.; Deitz, Sarah K.; Glowinski, Anne L.; Martin, Nicholas G.; Nelson, Elliot C.; Statham, Dixie J.; Madden, Pamela A. F.; Heath, Andrew C.; Lynskey, Michael T.; Agrawal, Arpana (Wiley-Blackwell, 2015)
      Background Self-harm has considerable societal and economic costs and has been extensively studied in relation to alcohol involvement. Whereas early onset alcohol use (EAU) has been causally linked to maladaptive clinical ...
    • Early Pleistocene Glacial Cycles and the Integrated Summer Insolation Forcing 

      Huybers, Peter John (American Association for the Advancement of Science, 2006)
      Long-term variations in Northern Hemisphere summer insolation are generally thought to control glaciation. But the intensity of summer insolation is primarily controlled by 20,000-year cycles in the precession of the ...
    • Early Social Cognition in Three Cultural Contexts 

      Callaghan, Tara; Moll, Henrike; Rakoczy, Hannes; Warneken, Felix; Liszkowski, Ulf; Behne, Tanya; Tomasello, Michael (Wiley-Blackwell, 2011)
      The influence of culture on cognitive development is well established for school age and older children. But almost nothing is known about how different parenting and socialization practices in different cultures affect ...
    • Early Urban Development in the Near East 

      Ur, Jason Alik; Karsgaard, Philip; Oates, Joan (American Association for the Advancement of Science, 2007)
    • Early Warning Signals of Ecological Transitions: Methods for Spatial Patterns 

      Kéfi, Sonia; Guttal, Vishwesha; Brock, William A.; Carpenter, Stephen R.; Ellison, Aaron M.; Livina, Valerie N.; Seekell, David A.; Scheffer, Marten; van Nes, Egbert H.; Dakos, Vasilis (Public Library of Science, 2014)
      A number of ecosystems can exhibit abrupt shifts between alternative stable states. Because of their important ecological and economic consequences, recent research has focused on devising early warning signals for ...
    • Early-Life Malaria Exposure and Adult Outcomes: Evidence from Malaria Eradication in India 

      Cutler, David M.; Fung, Winnie; Kremer, Michael R.; Singhal, Monica; Vogl, Tom (American Economic Association, 2010)
      We examine the effects of exposure to malaria in early childhood on educational attainment and economic status in adulthood by exploiting geographic variation in malaria prevalence in India prior to a nationwide eradication ...
    • Early-Type Galaxies in the Sloan Digital Sky Survey. I. The Sample 

      Bernardi, Mariangela; Sheth, Ravi; Annis, James; Burles, Scott; Eisenstein, Daniel James; Finkbeiner, Douglas; Hogg, David; Lupton, Robert; Schlegel, David; SubbaRao, Mark; Bahcall, Neta; Blakeslee, John; Brinkmann, J.; Castander, Francisco; Connolly, Andrew; Csabai, István; Doi, Mamoru; Fukugita, Masataka; Frieman, Joshua; Heckman, Timothy; Hennessy, Gregory; Ivezić, Željko; Knapp, G.; Lamb, Don; McKay, Timothy; Munn, Jeffrey; Nichol, Robert; Okamura, Sadanori; Schneider, Donald; Thakar, Aniruddha; York, Donald (2003)
      A sample of nearly 9000 early-type galaxies, in the redshift range 0.01 ≤ z ≤ 0.3, was selected from the Sloan Digital Sky Survey (SDSS) using morphological and spectral criteria. This paper describes how the sample was ...
    • Early-type Galaxies in the Sloan Digital Sky Survey. II. Correlations between Observables 

      Bernardi, Mariangela; Sheth, Ravi K.; Annis, James; Burles, Scott; Eisenstein, Daniel James; Finkbeiner, Douglas; Hogg, David W.; Lupton, Robert H.; Schlegel, David J.; SubbaRao, Mark; Bahcall, Neta A.; Blakeslee, John P.; Brinkmann, J.; Castander, Francisco J.; Connolly, Andrew J.; Csabai, István; Doi, Mamoru; Fukugita, Masataka; Frieman, Joshua; Heckman, Timothy; Hennessy, Gregory S.; Ivezic, Zeljko; Knapp, G. R.; Lamb, Don Q.; McKay, Timothy; Munn, Jeffrey A.; Nichol, Robert; Okamura, Sadanori; Schneider, Donald P.; Thakar, Aniruddha R.; York, Donald G. (IOP Publishing, 2003)
      A magnitude-limited sample of nearly 9000 early-type galaxies, in the redshift range 0.01 ≤ z ≤ 0.3, was selected from the Sloan Digital Sky Survey using morphological and spectral criteria. The sample was used to study ...
    • Early-Type Galaxies in the Sloan Digital Sky Survey. III. The Fundamental Plane 

      Bernardi, Mariangela; Sheth, Ravi K.; Annis, James; Burles, Scott; Eisenstein, Daniel James; Finkbeiner, Douglas; Hogg, David W.; Lupton, Robert H.; Schlegel, David J.; SubbaRao, Mark; Bahcall, Neta A.; Blakeslee, John P.; Brinkmann, J.; Castander, Francisco J.; Connolly, Andrew J.; Csabai, István; Doi, Mamoru; Fukugita, Masataka; Frieman, Joshua; Heckman, Timothy; Hennessy, Gregory S.; Ivezic, Zeljko; Knapp, G. R.; Lamb, Don Q.; McKay, Timothy; Munn, Jeffrey A.; Nichol, Robert; Okamura, Sadanori; Schneider, Donald P.; Thakar, Aniruddha R.; York, Donald G. (IOP Publishing, 2003)
      A magnitude-limited sample of nearly 9000 early-type galaxies in the redshift range 0.01 ≤ z ≤ 0.3 was selected from the Sloan Digital Sky Survey (SDSS) using morphological and spectral criteria. The fundamental plane ...
    • Early-Type Galaxies in the Sloan Digital Sky Survey. IV. Colors and Chemical Evolution 

      Bernardi, Mariangela; Sheth, Ravi K.; Annis, James; Burles, Scott; Finkbeiner, Douglas; Lupton, Robert H.; Schlegel, David J.; SubbaRao, Mark; Bahcall, Neta A.; Blakeslee, John P.; Brinkmann, J.; Castander, Francisco J.; Connolly, Andrew J.; Csabai, István; Doi, Mamoru; Fukugita, Masataka; Frieman, Joshua; Heckman, Timothy; Hennessy, Gregory S.; Ivezic, Zeljko; Knapp, G. R.; Lamb, Don Q.; McKay, Timothy; Munn, Jeffrey A.; Nichol, Robert; Okamura, Sadanori; Schneider, Donald P.; Thakar, Aniruddha R.; York, Donald G. (IOP Publishing, 2003)
      The colors and chemical abundances of early-type galaxies at redshifts z < 0.3 are studied using a sample of nearly 9000 galaxies, selected from the Sloan Digital Sky Survey using morphological and spectral criteria. In ...
    • Earth rotation changes since ?500 CE driven by ice mass variations 

      Hay, Carling; Mitrovica, Jerry X.; Morrow, Eric; Kopp, Robert E.; Huybers, Peter John; Alley, Richard B. (Elsevier BV, 2016)
      We predict the perturbation to the Earth's length-of-day (LOD) over the Common Era using a recently derived estimate of global sea-level change for this time period. We use this estimate to derive a time series of “clock ...
    • Earth-abundant water-splitting catalysts coupled to silicon solar cells for solar-to-fuels conversion 

      Cox, Casandra R (2014-10-21)
      Direct solar-to-fuels conversion can be achieved by coupling semiconductors with water-splitting catalysts. A 10% or higher solar to fuels conversion is minimally necessary for the realization of a robust future technology. ...