Zobrazeno 1 - 10 of 51 pro vyhledávání: '"James D. Harper"'
1
Ramanujan, Quadratic Forms, and the Sum of Three Cubes
Autor: James D. Harper
Publikováno v: Mathematics Magazine. 86:275-279
SummaryThis article shows how, using only basic precalculus tools and a seed such as 33 + 43 + 53 = 63, to generate quadratic-form formulas for the Diophantine equation A3 + B3 + C3 = D3.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0f895ec52186120ab556ad7a68330b0e
https://doi.org/10.4169/math.mag.86.4.275
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2
Stopping Strategies and Gambler's Ruin
Autor: James D. Harper, Kenneth A. Ross
Publikováno v: Mathematics Magazine. 78:255-268
Let's play a game. Roll a die and you win $2 if the die shows 1 or 2. Otherwise you lose $1. Thus about one-third of the time you win $2 and about two-thirds of the time you lose $1. Suppose you have a definite idea in mind about how much you would l
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9357509f5846fccc80185a8081aaf9a5
https://doi.org/10.1080/0025570x.2005.11953355
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3
High resolution two-dimensional gel electrophoresis of structural proteins of baculoviruses of Autographa californica and Porthetria (lymantria) dispar
Autor: James D. Harper, Shiva P. Singh, Robert T. Gudauskas
Publikováno v: Virology
The structural polypeptides of baculoviruses of Autographa californica (AcMNPV) and Porthetria dispar (PdMNPV) were analyzed by two-dimensional (2-D) gel electrophoresis. Purified proteins were solubilized in urea-NP40 mix and separated by isoelectri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fb57c7bddc39863ca27ca1dbc1f9bc2
http://europepmc.org/articles/PMC7130522
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4
Risk pooling in new york city: the anatomy of an award-winning innovation
Autor: James D. Harper
Publikováno v: International Journal of Public Administration. 19:1193-1197
This article discusses the Citywide Central Insurance Program of New York City. This award-winning innovation ensures insurance for many of the city's nonprofit social service providers. Using a partnership approach, CCIP increases the availability o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d7cc07ca5aea58f53699969f085e1acc
https://doi.org/10.1080/01900699608525138
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5
The resolution of cis-[Ru(phen)2(CH3CN)2]2+ (phen = 1,10-phenanthroline), and its use in the synthesis of chiral cis-[Ru(phen)2X2]n+ species (n = 0, 2; X = CN−, Cl−, py)
Autor: Leon A. P. Kane-Maguire, Rhett T. Watson, Joseph L. Jackson, Kimberlee A. Kane-Maguire, James D. Harper, Noel A. P. Kane-Maguire
Publikováno v: Inorganica Chimica Acta. 249:5-7
A convenient general method is described for the isolation of optically active ruthenium(II) complexes, cis-[Ru(phen)2X2]n+. The resolution strategy involves the initial preparation of the Δ and Λ isomers of cis-[Ru(phen)2(CH3CN)2](PF6)2. These pre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::47f07425a81d418e6031cc1976ba65ca
https://doi.org/10.1016/0020-1693(96)05192-4
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6
[33] Analysis of amyloid-β assemblies using tapping mode atomic force microscopy under ambient conditions
Autor: James D. Harper, Tomas T. Ding
Publikováno v: Methods in Enzymology ISBN: 9780121822101
Publisher Summary The purpose of this chapter is to draw attention to atomic force microscopy (AFM) as an extremely valuable tool for the study of amyloid assembly processes. AFM has only recently been used by researchers in the amyloid field, althou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::43367ab62749d05883cfdf4d7c85eeb0
https://doi.org/10.1016/s0076-6879(99)09035-7
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7
Another Simple Proof of
Autor: James D. Harper
Publikováno v: The American Mathematical Monthly. 110:540-541
(2003). Another Simple Proof of . The American Mathematical Monthly: Vol. 110, No. 6, pp. 540-541.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e70456ed327d7d9c4dbdf59aa6e1854b
https://doi.org/10.1080/00029890.2003.11919994
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9
Interactions between a commercial preparation of Bacillus thuringiensis and β-exotoxin in the fall armyworm, Spodoptera frugiperda
Autor: James D. Harper, Mark D. Mueller
Publikováno v: Journal of Invertebrate Pathology. 50:201-206
A commercial preparation of Bacillus thuringiensis (Dipel) and its β-exotoxin were assayed alone and in combination against neonate (3- to 6-hr-old) fall armyworm, Spodoptera frugiperda , larvae using a microdroplet technique. Positive dosage-mortal
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ec11adb26dca0e81d58163e25d783d7
https://doi.org/10.1016/0022-2011(87)90083-8
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10
Analysis of deoxyribonucleic acid from five nuclear polyhedrosis viruses infecting plusiine larvae (Lepidoptera: Noctuidae)
Autor: Robert T. Gudauskas, James D. Harper, Robert J. Cibulsky
Publikováno v: Journal of Invertebrate Pathology. 30:314-317
Deoxyribonucleic acid (DNA) from isolates of five nuclear polyhedrosis viruses (NPV) from lepidopterous hosts of the noctuid subfamily Plusiinae was analyzed by ion-exchange and paper chromatography. Viruses and production hosts were: Trichoplusia ni
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8eec2a6cae08649cc7b39a3cba6a998
https://doi.org/10.1016/0022-2011(77)90139-2
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