Results 71 to 80 of about 4,739,194 (334)

Short-Wavelength (Violet) Light Protects Mice From Myopia Through Cone Signaling

Investigative Ophthalmology and Visual Science, 2020
Purpose Exposure to short-wavelength light influences refractive development and inhibits myopic development in many animal models. Retinal mechanisms underlying this response remain unknown.
R. Strickland, E. Landis, M. Pardue
semanticscholar   +1 more source

Supertwistor description of ambitwistor strings

Journal of High Energy Physics, 2020
A new ambitwistor string is constructed based on a ten-dimensional super-twistor model for the massless superparticle. Although covariant quantization is complicated by reducibility issues, a light-cone gauge analysis can be easily performed.
Nathan Berkovits, Max Guillen, Lionel Mason   +2 more
doaj   +1 more source

The cosmological light-cone effect on the power spectrum of galaxies and quasars in wide-field redshift surveys [PDF]

, 1999
We examine observational consequences of the cosmological light-cone effect on the power spectrum of the distribution of galaxies and quasars from upcoming redshift surveys.
Cole S., Efstathiou G., Hiroaki Nishioka, Kaiser N., Kazuhiro Yamamoto, Matarrese S., Mo H. J., Mo H. J., Peacock J. A., Peacock J. A., Yasushi Suto   +10 more
core   +2 more sources

Relativistic wide-angle galaxy bispectrum on the light-cone [PDF]

, 2017
Given the important role that the galaxy bispectrum has recently acquired in cosmology and the scale and precision of forthcoming galaxy clustering observations, it is timely to derive the full expression of the large-scale bispectrum going beyond ...
D. Bertacca, A. Raccanelli, N. Bartolo, M. Liguori, S. Matarrese, L. Verde   +5 more
semanticscholar   +1 more source

Small x divergences in a heavy quark-antiquark state [PDF]

, 2001
With the current state of similarity renormalisation group approach to light-front QCD, it is possible to address with a degree of generality the issue of light-cone zero modes.
Brisudová, Brisudová, Brodsky, Głazek, Hiller, Martina Brisudová, Perry, Perry, Rozowski, Tomaras, Wilson, Wilson   +11 more
core   +2 more sources

Timelike-helicity B→ππ form factor from light-cone sum rules with dipion distribution amplitudes [PDF]

, 2017
We complete the set of QCD light-cone sum rules for $B\to \pi\pi$ transition form factors, deriving a new sum rule for the timelike-helicity form factor $F_t$ in terms of dipion distribution amplitudes. This sum rule, in the leading twist-2 approximation,
Shan Cheng, A. Khodjamirian, J. Virto
semanticscholar   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Lack of strong evidence for cone photoreceptors’ contribution to human melatonin suppression and alerting response to light

iScience
Summary: Light exposure at night can suppress melatonin production and increase alertness, primarily through the action of melanopsin-containing intrinsically photosensitive retinal ganglion cells (ipRGCs).
Fatemeh Fazlali, Rafael Lazar, Faady Yahya, Christian Epple, Manuel Spitschan, Oliver Stefani, Christian Cajochen   +6 more
doaj   +1 more source

Electron microscopy study of the central retinal fovea in Pied flycatcher: evidence of a mechanism of light energy transmission through the retina

Heliyon, 2020
We present unique ultrastructural data on avian retinal cells. Presently and earlier (Zueva et al., 2016) we explored distribution of intermediate filaments (IFs) in retinal cells of the Pied flycatcher (Ficedula hypoleuca, Passeriformes, Aves) in the ...
Lidia Zueva, Tatiana Golubeva, Elena Korneeva, Oscar Resto, Mikhail Inyushin, Igor Khmelinskii, Vladimir Makarov   +6 more
doaj   +1 more source

Analysis of the $B \to K^*_2(1430), a_2(1320), f_2(1270)$ form-factors with light-cone QCD sum rules

, 2011
In this article, we study the $B \to K^*_2(1430)$, $a_2(1320)$, $f_2(1270)$ form-factors with the light-cone QCD sum rules, where the $B$-meson light-cone distribution amplitudes are used. In calculations, we observe that the line-shapes of the $B$-meson
Ball P., Descotes-Genon S., Khodjamirian A., Safir A. S., ZHI-GANG WANG   +4 more
core   +1 more source