نتایج جستجو برای: or cone

تعداد نتایج: 3575655  

Journal: :journal of dentistry, tehran university of medical sciences 0
najmeh anbiaee associate professor of oral and maxillofacial radiology, oral and maxillofacial diseases research center, department of oral and maxillofacial radiology, school of dentistry, mashhad university of medical sciences, mashhad, iran. shadi saghafi associate professor, department of oral and maxillofacial pathology, oral and maxillofacial diseases research center, depart-school of dentistry, mashhad university of medical sciences, mashhad, iran. maryam mohammadzadeh rezaei department of oral and maxillofacial radiology, school of dentistry and dental research centre, mashhad university of medical sciences, mashhad, iran.

central granular cell odontogenic tumor) cgcot) of the jaw is an exceedingly rare benign odontogenic neoplasm with 35 reported cases in the literature. among these, very few studies have focused on the cone-beam ct features of cgcot. here, we report a case of an asymptomatic cgcot in a 16-year-old girl and focus on the cone-beam ct features. only 36 cases of this lesion, including this one, hav...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2011
Alexander V Kolesnikov Peter H Tang Ryan O Parker Rosalie K Crouch Vladimir J Kefalov

Rapid regeneration of the visual pigment following its photoactivation is critical for the function of cone photoreceptors throughout the day. Though the reactions of the visual cycle in the retinal pigment epithelium (RPE) that recycle chromophore for rod pigment regeneration are well characterized, the corresponding mechanisms that enable rapid regeneration of cone pigment are poorly understo...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2014
Jin-shan Wang Soile Nymark Rikard Frederiksen Maureen E Estevez Susan Q Shen Joseph C Corbo M Carter Cornwall Vladimir J Kefalov

Efficient regeneration of visual pigment following its destruction by light is critical for the function of mammalian photoreceptors. Here, we show that misexpression of a subset of cone genes in the rd7 mouse hybrid rods enables them to access the normally cone-specific retina visual cycle. The rapid supply of chromophore by the retina visual cycle dramatically accelerated the mouse rod dark a...

2002
KENNETH KNOBLAUCH STEVEN K. SHEVELL

Observers performed red–green and yellow–blue hue cancellation tasks for a 0.8-deg circular test field on a dark surround, by manipulating the excitation level of one cone class while the other two classes were held constant. The results of the red–green judgments conformed to classical opponent color theory in that both Land S-cone excitation levels were antagonistic to M-cone signals. The yel...

Journal: :Journal of the Optical Society of America. A, Optics, image science, and vision 2014
Dingcai Cao

This study investigated S-cone discrimination using a test annulus surrounded by an inner and outer adapting field with systematic manipulation of the adapting l=L/(L+M) or s=S/(L+M) chromaticities. The results showed that different adapting l chromaticities altered S-cone discrimination for a high adapting s chromaticity due to parvocellular input to the koniocellular pathway. In addition, S-c...

Journal: :Investigative ophthalmology & visual science 2003
Joost Felius William H Swanson

PURPOSE Short-wavelength automated perimetry (SWAP) has gained popularity as a clinical tool for the assessment of short-wavelength-sensitive (S)-cone visual function, but has also been shown to have higher threshold variability than conventional achromatic perimetry, possibly due to an imbalance between S-cone adaptation and long (L)- and medium (M)-wavelength-sensitive cone adaptation. To inv...

1996
Junegone Chay Stephen D. Ellis

The structure of hadronic jets depends not only on the dynamics of QCD but also on the details of the jet finding algorithm and the physical process in which the jet is produced. To study these effects in more detail we calculate the jet cross section and the internal jet structure in ee annihilations and compare them to the results found in hadronic collisions using the same jet definition, th...

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