... constitute a set of roots of the system; the roots of the same set are, it is clear, ... inter se and not the absolute magnitudes of the roots of a set are determinate. The number of ... of the component equations. Imagine a function of the roots which remains unaltered when any two sets ( x ... for shortness, be termed a symmetric function of the roots; such function (disregarding an arbitrary factor depending on ... the equations, i. e . any symmetric function of the roots may be considered as a rational and integral ...
Tópico(s): Functional Equations Stability Results
1857 - Royal Society | Philosophical Transactions of the Royal Society of London
Justin Gates, Abel Whitney, R. D. Mussey, J. S. Olcott, Henry Lee, Robert Hutchings, Daniel Newnan Smith,
... Years Ago, Jaundice, As the Anterior or Posterior Roots of the Nerves Are Divided, Live Well and Make Virtue ...
1841 - Gale Group | NCCO-STM 1of2
National Bureau of Economic Research (NBER)
Coarací M. Franco, Romeu Inforzato,
A new method for the study of the root system of the coffee plant Coffea arabica L. is described. The method consists in excavating a ditch along a row of four plants, ... as to include a complete cross section of the root system. The first three layers were 10 cm ... remaining layers (variable in number), 30 cm thick. The roots from each block were washed, air dried and ... The method just described was used to study the root system of the coffee tree in four different ... It is pointed out that the study of the root distribution based on weight alone might lead one ...
Tópico(s): Soil Management and Crop Yield
1946 - INSTITUTO AGRONÔMICO DE CAMPINAS | Bragantia
Half title: Hewitt's arithmetic. "For the use of schools." Publisher's advertisement (5 p.) at end. Book.
0000 - Gale Group | The Making of Modern World
National Bureau of Economic Research (NBER)
The studies on the requirement of oxygen of the roots as a part of the studies on the ... method of the amount of oxygen absorbed by the roots of vegetables. (2) The comparing of the amount of oxygen absorbed by the roots of various vegetables in the water. (3) The influence of temperature on the oxygen absorption of the roots of vegetables.The results obtained were as follows. ... for comparing the amount of oxygen absorbed by the roots of various kinds of vegetables to measure the ... roots in the water.2. Absorbing oxygen of the roots in the water is about 1/2 to ...
Tópico(s): Plant Physiology and Cultivation Studies
1953 - Japanese Society for Horticultural Science | Journal of the Japanese Society for Horticultural Science
Appendix in Latin and in Translation: Being a Treatise Concerning the Properties of Geometrical Lines. Translated from the Latin by John Lawson, B. D. ...
1788 - Gale Group | NCCO-STM 1of2
... plant dry weight and uptake of nitrogen by the roots. Uptake of phosphorus by the roots of swedes, but not sugar-beet, grown with high phosphorus supply to the roots, was decreased by applying sodium phosphate solution to ... leaves; uptake from a lower phosphorus supply to the roots was unaffected. Phosphorus applied to the leaves had no effect on dry weight. Potassium uptake by the roots of sugar-beet plants grown with high potassium supply to the roots was unaffected by painting the leaves with a ...
Tópico(s): Seedling growth and survival studies
1957 - Oxford University Press | Journal of Experimental Botany
Andrew Robson, Alfred Reading, Jon Ashworth, Raymond Snoddy Media Editor, Nick Foster, Joanna Hunter, Alex Karmel, Helen Studd, Robert Cole, Portia Colwell, Andrew Pierce, David Brown, Martin Heddy, Elizabeth Adams, Sarah Potter, Maggie Alderson, Jane MacQuitty, Gary Neville, Jill Hartley, Andrew Morgan, Robert Thicknesse, Paul Hoggart, Mark Souster, Michael Evans Defence Editor, Pert Paphides, Philip Howard, Helen Nugent and Helen Pridham, Ian Cobain, David Chater, Jeremy Kingston, James Bone, Nic Hopkins, Paula Hawkins and Richard Miles, Alison Kervin, Clive Davis, Anne Gatti, Elizabeth Judge, Gabrielle Starkey, Felix Mlins, GS, Will Pavia, Geoff Brown, Gerald Davies, Sam Lister, Clare Stewart, Roger Boyes and Daniel McGrory, Giles Coren, Peter Brown, Mike Horsnell, David Sharrock, Tom Otley, Caroline Hendrie, RT, Ben Webster Transport Correspondent, Pat Gibson, Valerie Elliott Countryside Editor, John Clarke, Hilary Rose, Anne Spackman Property Editor, Vinny Lee, Angus MacLeod Scottish Political Correspondent, Katherine Swift, Dominic Walsh, Debra Craine, Ryan Adams, Victoria Segal, John Street, Joe Morgan, Jill Dupleix, Sanjida O'Connell, Angela Jameson Industrial Correspondent, Jon Hills-Jones, Tara McNicholas, John Clarke (Secretray, Candida Crewe, Christopher McCooey, Edith Johnson, Alan Hamilton, Robin Young, Stephen Farrell, Jacob Gaffney, Andy Stephens, Jo Morris, Jenny MacArthur, Doug Sager, Roland Watson, VB, Charles Bremner, Jill Turton, John Cushnie, Martin Symington, David Roffe, Matt Dickinson Chief Football Correspondent, Jonathan Sacks, Susan Singleton, Nicholas Wapshott, Patience Wheatcroft Business Editor, Angela Jameson, Graham Wood, Ivan Hewett, Richard Allen, JJ, Paul Morley, Bee Wilson, Nigel E. Chubb, Vanora Bennett, Mary Gold, Tony Halpin Education Editor, Richard Cork, Oliver Kay, Nigel Williamson, Stephen Anderton, Amber Cowan, David Lister, Mark Atherton, Jane Wheatley, Tom Baldwin, Chris Power, Christopher Martin-Jenkins, John Hopkins, T. D. Hill, JC, John Hopkins Golf Correspondent, Rob Wright, IH, Elaine Monaghan, Gabriel Rozenberg, Charles Bremner Suna Erdem and Rory Watson, Bill Powell, Marcus Binney, Raymond Keene, Adam Sage, Lewis Smith, Matthew Pryor, John Russell Taylor, Tim Richardson, Victoria Walker, James Allcock, Christine Buckley Industrial Editor, David Sharrock and David Charter Chief Political Correspondent, Rosemary Bennett Deputy Political Editor, Xan Rice, Garry Mulholland, Cathy Harris, Russell Hotten, Helen Nugent, Anthony Browne Environment Editor, Christopher Martin-Jenkins Chief Cricket Correspondent, Marcel Berlins, Roger Boyes, Ken Frost, Charles Koppel Chairman, Oliver August, Nick Hasell, Kate Patrick, Richard Holledge, David Hands Rugby Correspondent, Owen Slot Chief Sports Reporter, James Collard, John Linford, John Allison, Richard A. Edwards (Senior Lucturer, Nick Szczepanik, John Goodbody, Brian Case, Melissa Kite Political Correspondent, David Murray, Jane Shilling, Charles Moore Editor, Ian Johns, Malcolm Boyden, L. G. J. Marshall, Matthew Parris, Sophie Warne, Christopher Hawtree, Sue Hepworth, Anjana Ahuja, Chris McGrath, Roland Watson and Rosemary Bennett Deputy Political Editor, Tim Wapshott, Glen Owen Education Correspondent, Alan Lee, Iain Finlayson, DC, Richard Beeston and Michael Theodoulou, Ben MacIntyre, Lea Paterson Economics Editor, Diana Farr, Dave Eggers, Richard Beeston Diplomatic Editor, Michael Dynes, Alison Gibson, Jack Malvern Arts Reporter, Richard Miles, David Sinclair, John Naish, Simon Jenkins, Lewis Stuart, Kieran Falconer, Martin Waller, JRT, Chris Ayres, Christopher Irvine, Lisa Verrico, Danny Baker, Graham Allen, Mark Baldwin, Nigel Hawkes Health Editor, Sarah Butler, Ashling O'Connor, Lottie Moggach, Benedict Nightingale, James Jackson, Jonathan Meades, Jill Crawshaw, Nancy Tolford, Fred Dellar, Paul Connolly, Loda, Ian Cobain Stewart Tendler and Andrew Pierce, Tom Chesshyre, Kenneth Hind, Valerie Grove, James Christopher, Michael Evans, Rosemary Bennett and Roger Boyes, Daniel Crewe, Allan Hall, Angela Harnett, Edward Gorman Sailing Correspondent, Tim Johnston, Jennifer Irwin, Patience Wheatcroft, Philip Pank, Russell, Chloe Bryan-Brown, David Lister Ireland Correspondent,
... Jazz Choice The Polyphonic Spree Various Artists Virginia Roots: The 1929 Richmond… Grossword solution Classical choice HMV Sweet ...
2002 - Gale Group | TDA
The effects of cutting on the root, stubble and herbage growth of perennial ryegrass during establishment was studied under sward conditions. Although a few weeks after a cutting ... a result of these changes in plant density the root weight per unit area of the sward was ... by increasing the cutting frequency during establishment. However, the root weight per plant (and per tiller ) was decreased by increases in the cutting frequency. The root and stubble weights increased during the spring, summer ... decreased during the winter. In the second season the root weight increased to a maximum in December whilst ...
Tópico(s): Turfgrass Adaptation and Management
1957 - Wiley | Grass and Forage Science
Book.
0000 - Gale Group | The Making of Modern World
National Bureau of Economic Research (NBER)
... s can spread through the soil only along the roots of its host plants. A distinction can thus ... in which the fungus is actively increasing on the roots, and a pseudo‐saprophytic or declining phase, in ... time increase the activity of the fungus on the roots of its host, may at another time hasten ... The rate of growth of Ophiobolus graminis along the roots of wheat seedlings has been found to vary ... the rate of growth of the fungus along the roots is related to the concentration of carbon dioxide in the microclimate of the root zone, along which the fungal hyphae are growing. ...
Tópico(s): Plant and fungal interactions
1936 - Wiley | Annals of Applied Biology
Book.
0000 - Gale Group | Sabin
Project Gutenberg
1. The anatomy of the root of Pisum sativum in the region of nodule development is described. 2. Both the protophloem and the metaphloem in the roots of plants of the variety Perfection are characterized ... vicinity of the rhizobial infection strand, which enters the root through a root hair and penetrates through three ... meristematic region, and an uninfected cortical parenchyma. 10. The root epidermis is broken as the nodule enlarges, but the nodule does not emerge from the root cortex. 11. Two main vascular strands differentiate at ...
Tópico(s): Soybean genetics and cultivation
1948 - University of Chicago Press | Botanical Gazette
1984 - Gale Group | Chatham House Online Part 2
Marie A. Scott, Β. Esther Struckmeyer,
... at higher concentrations and with longer treatments. 3. The root anatomy of untreated cucumber seedlings was similar in ... in transection and appeared 800-2150 μ from the root apex; those of cucumber were narrower and appeared 1740-5070 μ from the root apex. 4. Anatomically, the squash roots showed little ... and endodermal cells in the mature region of the root. With longer treatments, no greater response was evident. ... appeared on some cells, and tissues matured nearer the root apex. Increased response occurred in the mature region ...
Tópico(s): Polymer-Based Agricultural Enhancements
1955 - University of Chicago Press | Botanical Gazette
Book.
0000 - Gale Group | The Making of Modern World
... inhabited by populations differing in activity and number. The root regions of green plants constitute an important group of these microhabitats, and the population of the root regions of some plants have been examined experimentally. In the root region a population differing from the general soil ... dominance of one or few particular members of the root flora, but in typical cases of ectotrophic mycorrhiza ... dominant fungus is associated with morphological changes in the root. Part of the confusion in the presentation of ...
Tópico(s): Fungal Biology and Applications
1948 - Wiley | Biological reviews/Biological reviews of the Cambridge Philosophical Society
Includes index. Book.
0000 - Gale Group | Sabin
... known that there is a symmetric function of the roots of an equation, viz. the product of the squares of the differences of the roots, which vanishes when any two roots are put ... the existence of other systems of equalities among the roots, viz. that it was possible to form symmetric ... of a certain number of the differences of the roots, and such that the entire function might vanish ... for one or more systems of equalities among the roots; and in particular to obtain by the method ... for all the different systems of equalities between the roots of a quartic or a quintic equation, viz. ...
Tópico(s): History and Theory of Mathematics
1857 - Royal Society | Philosophical Transactions of the Royal Society of London
The Roots of Victory. Press Cuttings: Women In Agriculture. Supplementary Material. SUPP. 49/118. Book.
0000 - Gale Group | ArchivesUnbound Women-War