ニューマン投影式、Newman投影式
WordNet
- the acoustic phenomenon that gives sound a penetrating quality; "our ukuleles have been designed to have superior sound and projection"; "a prime ingredient of public speaking is projection of the voice" (同)acoustic projection, sound projection
- (psychiatry) a defense mechanism by which your own traits and emotions are attributed to someone else
- any solid convex shape that juts out from something
- any structure that branches out from a central support
- the representation of a figure or solid on a plane as it would look from a particular direction
- a prediction made by extrapolating from past observations
- the projection of an image from a film onto a screen
- English prelate and theologian who (with John Keble and Edward Pusey) founded the Oxford movement; Newman later turned to Roman Catholicism and became a cardinal (1801-1890) (同)John Henry Newman, Cardinal Newman
- United States film actor (born in 1925) (同)Paul Newman, Paul Leonard Newman
PrepTutorEJDIC
- 〈U〉突き出[させ]ること;〈C〉突起 / (影・映像などの)透写;◇映画・スライドの)映写;〈C〉投影図,投射図 / 〈U〉発射,射出 / 〈C〉予測,予知 / 〈U〉〈C〉(自分の考え・感情を)人に投影すること
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2012/09/07 10:23:08」(JST)
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Main article: Conformational isomerism
Molecule of butane in syn-clinal (-sc) conformation |
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Sawhorse
projection |
Newman
projection |
A Newman projection, useful in alkane stereochemistry, visualizes chemical conformations of a carbon-carbon chemical bond from front to back, with the front carbon represented by a dot and the back carbon as a circle (see below). The front carbon atom is called proximal, while the back atom is called distal. This type of representation is useful for assessing the torsional angle between bonds.
A Sawhorse representation, on the other hand, views a carbon-carbon bond from an oblique angle. This type of representation makes it easy to visualize the molecule as a whole in 3-D.
Other methods for depicting molecules are the Fischer projection, the Haworth projection and the Natta projection.
This projection is named after Melvin Spencer Newman, an American chemist of Ohio State University who introduced it in 1952.
References
- Newman, M. S. Record. Chem. Progr. (Kresge-Hooker Sci. Lib.) 1952, 13, 111.
- Newman, M. S. A notation for the study of certain stereochemical problems. J. Chem. Educ. 1955, 32, 344-347.
See also
- Haworth projection
- Fischer projection
- Natta projection
UpToDate Contents
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English Journal
- One hundred and fifty years of sprint and distance running - Past trends and future prospects.
- Weiss M1, Newman A2, Whitmore C3, Weiss S4.
- European journal of sport science.Eur J Sport Sci.2016 Jun;16(4):393-401. doi: 10.1080/17461391.2015.1042526. Epub 2015 Jun 18.
- Sprint and distance running have experienced remarkable performance improvements over the past century. Attempts to forecast running performances share an almost similarly long history but have relied so far on relatively short data series. Here, we compile a comprehensive set of season-best perform
- PMID 26088705
- Gavi's Transition Policy: Moving From Development Assistance To Domestic Financing Of Immunization Programs.
- Kallenberg J1, Mok W2, Newman R3, Nguyen A4, Ryckman T5, Saxenian H6, Wilson P7.
- Health affairs (Project Hope).Health Aff (Millwood).2016 Feb 1;35(2):250-8. doi: 10.1377/hlthaff.2015.1079.
- Gavi, the Vaccine Alliance, was created in 2000 to accelerate the introduction of new and underused vaccines in lower-income countries. The period 2000-15 was marked by the rapid uptake of new vaccines in more than seventy countries eligible for Gavi support. To stay focused on the poorest countries
- PMID 26858377
- Evaluation of the Usefulness of Consensus Definitions of Sarcopenia in Older Men: Results from the Observational Osteoporotic Fractures in Men Cohort Study.
- Cawthon PM1, Blackwell TL1, Cauley J2, Kado DM3, Barrett-Connor E3, Lee CG4, Hoffman AR5, Nevitt M6, Stefanick ML5, Lane NE7, Ensrud KE8,9, Cummings SR1, Orwoll ES10.
- Journal of the American Geriatrics Society.J Am Geriatr Soc.2015 Nov;63(11):2247-59. doi: 10.1111/jgs.13788. Epub 2015 Oct 27.
- OBJECTIVE: To evaluate the associations between definitions of sarcopenia and clinical outcomes and the ability of the definitions to discriminate those with a high likelihood of having these outcomes from those with a low likelihood.DESIGN: Osteoporotic Fractures in Men Study.SETTING: Six clinical
- PMID 26502831
Japanese Journal
- Neural hypotheses derived from Global Workspace Theory: Elements of a cognitive neuroscience of consciousness
- 認知科学 4(3), 3_5-3_14, 1997
- … For sensory consciousness the bright spot on stage is likely to require the corresponding sensory projection areas of the cortex. … Newman, this issue; … Newman & Baars, 1993; …
- NAID 130004853271
- Organophosphorus chemistry. XV. The reaction of 10-dicyanomethylene-9(10H)-phenanthrenone with alkyl phosphites.
- , ,
- Bulletin of the Chemical Society of Japan 64(2), 747-749, 1991
- … The rotational isomers were assigned in terms of the Newman projection and NMR data. …
- NAID 130001979218
- Physicochemical Properties of Isomeric Azines of 3-Acetyl-4-hydroxy-2-methoxy-4-phenylcrotonic Acid Lactones
- 栗原 拓史,那須 啓子,井上 正敏,石田 寿昌
- Chemical & pharmaceutical bulletin 31(3), 912-918, 1983-03-25
- X-Ray crystallographic analyses of two isomeric azines of 3-acetyl-4-(2-chlorophenyl)-4-hydroxy-2-methoxycrotonic acid lactones (5b and 6b), which were pepared by reaction of 1b with hydrazine dihydro …
- NAID 110003663405
Related Links
- A saw-horse model simply refers to only drawing lines and using letters for the elements in the molecule. A Newman projection is basically a "head on" view of the molecule that uses the same saw-horse drawing scheme (lines and ...
- Are you struggling with organic chemistry? Download my free ebook "10 Secrets To Acing Organic Chemistry" here: http://leah4sci.com/orgo-ebook/ http://leah4sci.com/organicchemistry/ presents: Newman ...
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