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Jones, Dyan L; Zollman, Dean, E-mail: djones3@mercyhurst.edu2014
AbstractAbstract
[en] We present a qualitative study designed to examine how students construct an understanding of the human eye and vision from their knowledge of light and optics. As would be expected, vast differences are shown to exist between pre- and post-instruction students in terms of not only resource use, but also willingness to transfer their existing knowledge. However, we have found that appropriate scaffolding can facilitate resource activation and guide students to construct an understanding of vision and vision defects. (paper)
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Source
Available from http://dx.doi.org/10.1088/0143-0807/35/5/055023; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Jung, Yun Kyung; Kim, Kyeong Nam; Baik, Jeong Min; Kim, Byeong-Su, E-mail: jbaik@unist.ac.kr, E-mail: bskim19@unist.ac.kr2016
AbstractAbstract
[en] Highlights: • A triboelectric biosensor is developed for the self-powered detection of thrombin. • The selective recognition of thrombin is achieved by using aptamer. • The change in the electrical output upon sensing is resulted from the changes in the surface potential. • The triboelectric biosensor achieves a high detection sensitivity of 0.41 nM. • Thrombin detection is also directly demonstrated via an array of LED lights. An aptamer-based triboelectric biosensor is developed for a highly specific, label-free and self-powered detection of thrombin. For the first time, intermolecular recognition interactions are used to develop a selective nanosensor based on triboelectric effect. Positively charged Au nanoparticles (Au NPs+) with large difference in triboelectric polarity and work function are assembled onto Al film to increase the electrical output of triboelectric nanogenerators (TENG). Modification of anti-thrombin aptamers on the Au NPs+-assembled TENG affords the triboelectric nanosensor highly selective toward thrombin, even in clinical samples because of specific binding affinity between aptamers and thrombin unlike random DNA-modified TENGs with undetectable response. A 0.41 nM limit of detection is achieved, which is directly demonstrated by the number of commercial LED lights without any supporting equipment such as power source and electrometer. Our study demonstrates an innovative and unique approach toward the self-powered and label-free detection of thrombin for rapid and simple in-field analysis.
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S2211285516304104; Available from http://dx.doi.org/10.1016/j.nanoen.2016.09.039; Copyright (c) 2016 Published by Elsevier Ltd.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Nano Energy (Print); ISSN 2211-2855;
; v. 30; p. 77-83

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AbstractAbstract
[en] Positions with an accuracy of about 0.1 arcsec are presented for 65 quasars observed with the 26- and 13-in refractors at the RGO. (author)
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Journal Article
Journal
Monthly Notices of the Royal Astronomical Society; ISSN 0035-8711;
; v. 203(2); p. 861-863

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Zhang Xiliang; Liu Zhong, E-mail: zhangxiliang@ynao.ac.cn2011
AbstractAbstract
[en] Mutual events between natural satellites include mutual occultation and mutual eclipse. Mutual eclipse is another kind of mutual occultation as viewed from the center of the Sun instead of the Earth. Two mutual eclipses of J2 Europa by J1 Io (2009 Aug. 28 and Sept. 12) were observed at Yunnan Observatory during the PHEMU09 international campaign. We will calculate the astrometric data of these Galilean satellites by analyzing and fitting the light curves we obtained. The limb-darkening was considered during modeling the light intensity of eclipsed satellites in the penumbra zone, by taking the Lommel-Seeliger scattering law into account. Several dynamical quantities, such as the relative coordinates of the eclipsing satellite from the eclipsed one Δαcosδ and Δδ, impact parameter and mid-time corresponding to the impact parameter and the deviations O - C of observed Δαcosδ and Δδ relative to ephemerides, were obtained for each event respectively. (research papers)
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Source
Available from http://dx.doi.org/10.1088/1674-4527/11/10/011; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Research in Astronomy and Astrophysics; ISSN 1674-4527;
; v. 11(10); p. 1243-1248

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AbstractAbstract
[en] Following a discussion of two recent papers by Schmidt (1973, 1975), it is concluded that for the large amplitude, longer period Cepheids (log P greater than about 1.1), the small colour excesses derived from the six-colour photometry (traditional method or Parsons method) are to be preferred to the large colour excesses derived from the GAMMA-index photometry (Kraft's scale). (Auth.)
Primary Subject
Source
Hauck, B.; Keenan, P.C. (eds.); International Astronomical Union; p. 95-96; ISBN 9027706743;
; 1976; D. Reidel; Dordrecht, The Netherlands; International Astronomical Union symposium no. 72 on abundance effects in classification; Lausanne-Dorigny, Switzerland; 8 - 11 Jul 1975

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Book
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Conference
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Anguiano-Morales, Marcelino, E-mail: manguiano@itchihuahua.edu.mx2018
AbstractAbstract
[en] Recent studies have shown that an asymmetric Bessel beam, similar to a conventional non-diverging Bessel beam; recovers their original intensity profile after encountering an obstruction. Here, we investigate the ability of an asymmetric Bessel beam to recover their original intensity profile when it is perturbed by an obstruction, and additionally drastically perturbed by a pattern of light generated by an annular obstruction. We believe that their intriguing properties have not been fully studied. A better understanding of their properties can help to make use of them appropriately in a variety of potential applications. Our investigations reveal that the dynamics of the reconstruction is affected by the asymmetry degree of the beam.
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Source
Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
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AbstractAbstract
No abstract available
Original Title
Patent
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9 Apr 1974; 4 p; US PATENT DOCUMENT 3,803,509
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Patent
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AbstractAbstract
No abstract available
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Letter to the editor.
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Journal Article
Journal
Nature (London); v. 255(5504); p. 125
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AbstractAbstract
[en] Limits on the optical luminosities of eight radio pulsars in the wavelength range lambda = 3500--6000 A are obtained from the results of their investigation on the six-meter telescope of the Special Astrophysical Observatory, USSR Academy of Sciences. The corresponding limits on the stellar magnitudes of these pulsars (under the assumption that the optical emission spectra of these pulsars are similar to the spectrum of the pulsar in the Crab Nebula) are m/sub B/roughly-equal25--26/sup m/
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Source
Cover-to-cover translation of Astronomicheskij Zhurnal (USSR).
Record Type
Journal Article
Journal
Soviet Astronomy; ISSN 0038-5301;
; v. 27(4); p. 429-431

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O'Dell, D.H.
Bristol Univ. (United Kingdom)1998
Bristol Univ. (United Kingdom)1998
AbstractAbstract
No abstract available
Primary Subject
Source
Dec 1998; [vp.]; Available from British Library Document Supply Centre- DSC:DXN023197; Thesis (Ph.D.)
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation
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