Hopton Wood stone
A Dictionary of Twentieth-Century Art
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1999
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© A Dictionary of Twentieth-Century Art 1999, originally published by Oxford University Press 1999. (Hide copyright information)
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Hopton Wood stone. A very hard limestone from the Hopton Wood Quarries, near Middleton, Derbyshire, varying in colour from light grey to light tan, flecked with dark-grey glistening crystalline speckles. It can be cut to a smooth face and sharp ridge and takes a good polish. Jacob
Epstein used a twenty-ton block of it for his tomb of Oscar Wilde (1912) in Père Lachaise Cemetery Paris, and other modern British sculptors who have used it include Barbara
Hepworth and Henry
Moore.
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Aligning Paramecium caudatum with Static Magnetic Fields
Magazine article from: Biophysical Journal; 4/15/2006; ; 700+ words
; ...anisotropic components of the paramecia. We have determined...p^^, of a whole Paramecium: Δ^sub...of the response of Paramecium caudatum to intense...fields (the response of Paramecium to alternating magnetic...trajectories of motile paramecia curve and nonswimming...
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Paramecium: An excitable cell with great potential
Magazine article from: The American Biology Teacher; 5/1/2002; ; 700+ words
; ...abnormal swimming behavior patterns in Paramecium. For example, the Pawn mutants...forward again (Hinrichsen 1984). Paramecia in a DC electrical field will orient...functions in an excitable cell such as Paramecium. We will describe several different...
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Discrimination learning in paramecia (P. caudatum).
Magazine article from: The Psychological Record; 9/22/2006; ; 700+ words
; ...instrumental or classical conditioning in paramecia have reported both positive and negative...1911) observed turning behavior of paramecia in a capillary tube. They found that...turns and the elapsed time before the paramecia reversed their direction of movement...
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PARAMECIA ADAPT THEIR SWIMMING TO CHANGING GRAVITATIONAL FORCE
News Wire article from: US Fed News Service, Including US State News; 9/18/2006; 700+ words
; ...example is the slipper-shaped paramecium, which consistently swims...vial with pond water and live paramecia inside a high-powered electromagnet...lighter," relative to the paramecia, achieving an effect up to...the swimming behavior of the paramecia dramatically. In high gravity...
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Spontaneous alternation behavior in Paramecium
Magazine article from: Learning & Behavior; 11/1/2006; ; 700+ words
; ...in the earlier studies on Paramecium. They also indicate that...relative. Some examples include paramecia (Lachman & Havlena...and Havlena (1962) used paramecia to test Hull 's (1943...use different species of Paramecium, but, as Shinkman and Hertzler...
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Regulation of ion currents in Paramecium tetraurelia by type-1 protein phosphatases w, c, and j isoforms. (Molecular Biology and Genetics 02:00 PM, Saturday, April 5, 2003 Brewer/Frost Science 141 Dr. Beth Berger Pritts-Presiding).(Abstract)
Magazine article from: The Ohio Journal of Science; 3/1/2003; ; 700+ words
; ...potentials. The swimming behavior of Paramecium tetralelia is controlled by a calcium...on the backward swimming behavior of Paramecium to identify which isoforms regulate...PP1-w, c, and j isoforms. Feeding Paramecium with bacteria engineered to express...
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Signaling in Paramecium cells analyzed, one-way Ca[superscript]2+ spill-over explained.
Newspaper article from: Health & Medicine Week; 12/27/2004; 700+ words
; ...occurs during signal transduction in Paramecium cells. "We asked to what extent Ca...signals in two different domains of Paramecium cells remain separated during different...over during signal transduction in Paramecium cells: from the cell cortex into cilia...
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Comparing predator-prey models to Luckinbill's experiment with Didinium and Paramecium.
Magazine article from: Ecology; 3/1/1995; ; 700+ words
; ...Luckinbill's (1973) data on Didinium and Paramecium. A standard model gives qualitative...then starve. Luckinbill (1973) grew Paramecium aurelia together with its predator Didinium...which provides a food source for the Paramecium. The Didinium consumed all of the Paramecium...
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Endocytosis, trafficking related genes are conserved from Paramecium.
Newspaper article from: Biotech Week; 9/10/2003; 547 words
; ...trafficking related genes are conserved from Paramecium to human. "Molecular search for the...proteins in the unicellular eukaryote Paramecium involved in endocytosis and membrane...of the above described components of Paramecium endocytic machinery as well as a high...
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Photosensitive Signal Transduction Induces Membrane Hyperpolarization in Paramecium bursaria
Magazine article from: Photochemistry and Photobiology; 11/1/2005; ; 700+ words
; ABSTRACT The protozoan ciliate Paramecium bursaria exhibits membrane hyperpolarization...Photobiology 0031-8655/05 INTRODUCTION Paramecium bursaria is a ciliated protozoan...the membrane depolarization of Paramecium triggers action potentials that...
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Paramecium
Book article from: World of Microbiology and Immunology
...and Paramecium bursaria. Paramecium are large enough to be visible...sealed to prevent leakage. Paramecium contain organized structures...characteristic features of Paramecium is the socalled contractile...amount of water inside the paramecia can be controlled. The operation...
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paramecium
Book article from: The Columbia Encyclopedia, Sixth Edition
...organism of the genus Paramecium, of the ciliate phylum...other protozoans , paramecia, previously considered...kingdom Protista . The paramecium has a stiff outer covering...through a microscope. Paramecia and other ciliates...celled organisms. The paramecium has an external oral...
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Protozoa
Encyclopedia entry from: The Gale Encyclopedia of Science
...water body. Other protozoans such as paramecium have developed large numbers of tiny...two different cells. In the case of paramecium, each individual has two nuclei: a...micronucleus that controls reproduction. When paramecium reproduces sexually, two individuals...
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Excretory System
Encyclopedia entry from: The Gale Encyclopedia of Science
...waste removal. Protozoans, such as paramecium, have specialized excretory structures...the aqueous environment. In others, paramecium for example, a specialized organelle...cell by osmosis. Radiating canals in paramecium collect excess water from the cell and...
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Mast, Samuel Ottmar
Dictionary entry from: Complete Dictionary of Scientific Biography
...the metabolism of the colorless in the flagellate Chilomonas paramecium (1933), showing its ability to synthesize organic compounds...Proteins and Protoplasm in the Colorless Animal, Chilomonas paramecium , ” in Protoplasma , 202 (1933), 326 –...
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