helices


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hel·i·ces

(hĕl′ĭ-sēz′, hē′lĭ-)
n.
A plural of helix.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

helices

(ˈhɛlɪˌsiːz)
n
a plural of helix
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

he•lix

(ˈhi lɪks)

n., pl. hel•i•ces (ˈhɛl əˌsiz)
he•lix•es.
1. a spiral.
2. the curve formed by a straight line drawn on a plane when that plane is wrapped around a cylindrical surface, esp. a right circular cylinder, as the curve of a screw.
3. a spiral, scroll-like architectural ornament, as a volute on a Corinthian capital.
4. the curved fold forming most of the rim of the external ear.
[1555–65; < Latin: a spiral, a kind of ivy < Greek hélix anything twisted]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
"Double helices in synthetic systems are essentially unheard of."
Double helix structure discovered
Myoglobin (Mb) is a heme protein, and holomyoglobin (holoMb) is composed of eight helices (11) (Fig.
Folding of apomyoglobin: analysis of transient intermediate structure during refolding using quick hydrogen deuterium exchange and NMR
Although 3/10 helices play important roles in the folding of proteins (as parts of transmembrane helices, as interactive interfaces, as immunogenic epitopes, and as fragments of active centers), historically they were thought to be unstable and relatively rare [1, 2].
The influence of flanking secondary structures on amino acid content and typical lengths of 3/10 helices
Metallic helices, which have been studied at least since 1920 [1], interest scientists today from a point of view of photonic crystal, metamaterial applications, as well as new broadband microwave and optical devices.
Realization of linear-to-circular polarization conversion by a single bifilar particle
Yamadam, "Thermal/structural analysis of diamond supported helices," AIAA 11th Communication Satellite Systems Conference, 605-608, 1986.
A novel slotted helix slow-wave structure for millimeter-wave traveling-wave tube
Hacisalihoglu: Harmonic curvatures and generalized helices in [E.sup.n], Chaos, Solitons and Fractals, DOI 10.1016/j.chaos.200711001.
Helices of the 3-dimensional Finsler manifold
The secondary protein structural model, based on hydrophobicity plots, proposes twelve [alpha] helices that cross the bilayer.
The effect of charged amino acid mutations in hydrophobic transmembrane domain III in the lactose permease of Escherichia coli. (Medical Science and Health Poster Session 09:00 AM-10:00 AM)
Stupp and his Northwestern coworkers Eli Sone and Eugene Zubarev made the templates for the cadmium sulfide helices from molecules dubbed dendron rodcoils.
Molecular template makes nanoscale helix. (Materials Science)
The concept of a resonant, fractional-turn, quadrafilar helix (also known as a volute antenna) was first introduced by Kilgus.[1] It was shown that this antenna can produce a highly directive circularly polarized radiation pattern by feeding a proper complex excitation to the four helices. It was later shown[2] that a shaped-conical pattern also can be achieved by using helices of an integral number of turns and varying pitches.
A quadrafilar helical antenna for low elevation GPS applications
Helices are one of the well-known chiral structures found in several natural molecules, e.g., DNA, sucrose, proteins, etc., as well as solid elements such as quartz and crystal.
Low loss circular birefringence in artificial triple helices
When they used the program, the researchers were surprised to discover that their top candidates for containing beta helices were all bacterial proteins.
Motif for Infection
The antenna is a two-element broadside array consisting of two short helices mounted on a small common ground plane.
A low cost, lightweight aeronautical SATCOM antenna

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