Results 21 to 30 of about 5,597,978 (191)
Sensations from a single M-cone depend on the activity of surrounding S-cones [PDF]
Scientific Reports, 2018 Abstract Color vision requires the activity of cone photoreceptors to be compared in post-receptoral circuitry. Decades of psychophysical measurements have quantified the nature of these comparative interactions on a coarse scale. How such findings generalize to a cellular scale remains unclear.
Brian P. Schmidt +4 more
openaire +4 more sources
Functional evidence for cone-specific connectivity in the human retina [PDF]
, 2005 NoPhysiological studies of colour vision have not yet resolved the controversial issue of how chromatic opponency is constructed at a neuronal level. Two competing theories, the cone-selective hypothesis and the random-wiring hypothesis, are currently ...
McGraw, Paul V. +7 more
core +1 more source
Revista Facultad de Odontología Universidad de Antioquia, 2017 Introduction: the adequate sealing of endodontic fillings is critical for a successful treatment, as it prevents the entry of microorganisms and/or their growth in case they persist within the root system.
Jaime Alberto Rendón-Gómez +3 more
doaj +1 more source
Effect of obturation technique using a new bioceramic sealer on the presence of voids in flattened root canals [PDF]
Brazilian Oral Research, 2021 The aim of this study was to evaluate the filling ability of a new ready-to-use calcium silicate-based sealer using thermoplastic or single-cone technique in flattened root canals.
Airton Oliveira SANTOS-JUNIOR +5 more
doaj +1 more source
Bioengineering, 2023 Background: Calcium silicate-based sealers have gained in popularity over time due to their physicochemical/biological properties and their possible use with single-cone obturation.
Germain Sfeir +6 more
doaj +1 more source
Frontiers in Oncology, 2021 ObjectivesThis study aimed to show the advantages of each stereotactic radiosurgery (SRS) treatment option for single small brain metastasis among Gamma Knife (GK), Cone-based VMAT (Cone-VMAT), and MLC-based CRT (MLC-CRT) plans.Materials and MethodsGK ...
Yanhua Duan +17 more
doaj +1 more source
Retinal cone photoreceptors of the deer mouse Peromyscus maniculatus : development, topography, opsin expression and spectral tuning [PDF]
, 2013 A quantitative analysis of photoreceptor properties was performed in the retina of the nocturnal deer mouse, Peromyscus maniculatus, using pigmented (wildtype) and albino animals.
Glösmann Martin +8 more
core +2 more sources
Avian cone photoreceptors tile the retina as five independent, self-organizing mosaics. [PDF]
PLoS ONE, 2010 The avian retina possesses one of the most sophisticated cone photoreceptor systems among vertebrates. Birds have five types of cones including four single cones, which support tetrachromatic color vision and a double cone, which is thought to mediate ...
Yoseph A Kram +2 more
doaj +1 more source
Developmental dynamics of cone photoreceptors in the eel [PDF]
, 2009 Background: Many fish alter their expressed visual pigments during development. The number of retinal opsins expressed and their type is normally related to the environment in which they live.
Bowmaker, JK +11 more
core +1 more source
Fishes, 2022 The largemouth bass (Micropterus salmoides), a food resource in Korea, is a highly voracious predator, designated as an invasive species. It is both diurnal and nocturnal, with high adaptability and reproducibility.
Jae Goo Kim +3 more
doaj +1 more source