Results 31 to 40 of about 85,236 (300)

Spectrophotometry for cerebrospinal fluid pigment analysis [PDF]

open access: yes, 2006
The use of spectrophotometry for the analysis of the cerebrospinal fluid (CSF) is reviewed. The clinically relevant CSF pigments--oxyhemoglobin and bilirubin--are introduced and discussed with regard to clinical differential diagnosis and potentially ...
Keir, G., Petzold, A., Sharpe, L.T.
core   +1 more source

Sex-related differences in chromatic sensitivity [PDF]

open access: yes, 2008
Generally women are believed to be more discriminating than men in the use of colour names and this is often taken to imply superior colour vision. However, if both X-chromosome linked colour deficient males (~8%) and females (
J.A. HARLOW   +7 more
core   +1 more source

Retinal cone photoreceptors of the deer mouse Peromyscus maniculatus : development, topography, opsin expression and spectral tuning [PDF]

open access: yes, 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.
Arbogast, Patrick   +2 more
core   +2 more sources

Multiple Cone Visual Pigments and the Potential for Trichromatic Colour Vision in Two Species of Elasmobranch [PDF]

open access: yes, 2004
Elasmobranchs (sharks, skates and rays) are the modern descendents of the first jawed vertebrates and, as apex predators, often occupy the highest trophic levels of aquatic (predominantly marine) ecosystems.
Collin, Shaun P.   +3 more
core   +1 more source

High-Level Inducible Expression of Visual Pigments in Transfected Cells

open access: yesBioTechniques, 1996
A method for high-level expression of a functionally active, recombinant human red cone opsin was developed by adding the coding sequence for the C-terminal epitope of bovine rhodopsin onto the C terminus of the cone opsin and cloning the resulting ...
Manija A. Kazmi   +3 more
doaj   +1 more source

The retina visual cycle is driven by cis retinol oxidation in the outer segments of cones [PDF]

open access: yes, 2017
Vertebrate rod and cone photoreceptors require continuous supply of chromophore for regenerating their visual pigments after photoactivation. Cones, which mediate our daytime vision, demand a particularly rapid supply of 11-cis retinal chromophore in ...
Cornwall, M. Carter   +3 more
core   +2 more sources

A literature review of analytical techniques for materials characterisation of painted textiles - Part 1: categorising painted textiles, sampling and the use of optical tools [PDF]

open access: yes, 2017
Many types of painted textile are represented in museum collections. Their flexibility, draping qualities, and heterogeneous, layered nature make painted textiles complex objects to conserve. What do we know about their materials and making?
Lennard, Frances   +2 more
core   +2 more sources

An autonomous biodegradable hygroscopic seed-inspired soft robot for visual humidity sensing

open access: yesMaterials & Design, 2023
Visual sensors for relative humidity (RH) are of interest for distributed and autonomous environmental monitoring. Most of the visual humidity sensors are based on colorimetric sensing through the employment of hygroscopic inorganic pigments or photonic ...
Stefano Mariani   +3 more
doaj   +1 more source

Opsin expression predicts male nuptial color in threespine stickleback. [PDF]

open access: yes, 2018
Theoretical models of sexual selection suggest that male courtship signals can evolve through the build-up of genetic correlations between the male signal and female preference.
Bolnick, Daniel I   +3 more
core   +2 more sources

Evolution of vertebrate visual pigments [PDF]

open access: yesCurrent Biology, 2006
Unlike most other mammals, primates are trichromatic with three cone pigments, an SWS1 pigment and two variants of the LWS pigments. In Old World primates, two different forms of the LWS gene are present, which have arisen by duplication of an ancestral gene (Figure 4Figure 4).
Bowmaker, James K., Hunt, David M.
openaire   +2 more sources

Home - About - Disclaimer - Privacy