MIT «OMMATIDIUM» VERWANDTE WÖRTER IM WÖRTERBUCH ENGLISCH
ommatidium
cockroach
function
structure
compound
eyes
arthropods
like
insects
crustaceans
millipedes
composed
units
called
ommatidia
contains
cluster
photoreceptor
cells
surrounded
support
pigment
ommatidium
merriam
webster
audio
pronunciations
word
games
define
radial
composing
origin
latin
greek
ommat
stem
ómma
idium
related
oxford
dictionaries
british
world
meaning
pronunciation
example
sentences
reference
wiktionary
plural
zoology
conical
substructures
noun
edit
genitive
ommatidiī
second
declension
defined
structuralelements
forming
many
complete
itself
having
lens
anatomy
encyclopedia
britannica
apposition
associated
photoreceptors
unit
which
views
light
small
region
building
cell
time
dvdy
kumar
since
discovery
single
white
eyed
translations
ensure
that
only
entering
parallel
almost
long
axis
reaches
visual
triggers
nerve
impulses
pattern
formation
drosophila
retina
adult
precise
assembly
mirror
twins
meet
vertical
midline
crustacea
glossary
cylindrical
prismoidal
constituent
covered
10 BÜCHER, DIE MIT «OMMATIDIUM» IM ZUSAMMENHANG STEHEN
Entdecke den Gebrauch von
ommatidium in der folgenden bibliographischen Auswahl. Bücher, die mit
ommatidium im Zusammenhang stehen und kurze Auszüge derselben, um seinen Gebrauch in der Literatur kontextbezogen darzustellen.
1
Studies on Excitation and Inhibition in the Retina: A ...
Each ommatidium has an optical aperture about 0.1 mm. in diameter; the facets
are spaced approximately 0.3 mm. apart, center to center, on the surface of the
eye. Each ommatidium has a "visual field" subtending a few square degrees of ...
2
Animal Models in Eye Research
Externally, the eye appears as a regular hexagonal array of facets, which are the
lenses of each ommatidium. This highly organized repetitive array of facets in the
compound eye is a direct consequence of the underlying cellular lattice of cells ...
3
Nerve Cells and Animal Behaviour
5' Scene Corneal .7 K Djmfl 3W lens > I. l Crystalline Lenses : ' cone
Rhabdomeres Images on Photoreceptors Photorecéptofs Ommatidium (a) Lens i
Lens Nucleus \I\ Photoreceptor Photoreceptor cell cell i Rhabdom Nucleus * ><
Axons Axon ...
Peter Simmons, David Young, 2010
4
Cockroaches as Models for Neurobiology
The structural unit of the retina is the ommatidium. The structure of an
ommatidium is presented schematically in Figure 1 . The number of ommatidia
per eye varies with age and species, but is about 2000 in an adult P. americana.
Ivan Huber, Edward P. Masler, Balakrishna R. Rao, 1990
5
An Introduction to Neural Networks
The receptor cells in the ommatidium (retinula cells) respond to light with a small
receptor potential. Then the output cell, the eccentric cell (named for its off-center
position in the ommatidium, not for any behavioral peculiarities), responds by ...
6
Foundations of Animal Behavior: Classic Papers with Commentaries
The bee's eye is able to recognise the plane of vibration of polarized light and
can in consequence detect the position of the unseen sun if a spot of blue sky is
visible [see von Frisch (11, pp. 88-109)]. Autrum suggests that each ommatidium
of ...
Lynne D. Houck, Lee C. Drickamer, Animal Behavior Society, 1996
7
Encyclopedia of Entomology
This arrangement is thought to make for a sharper image focused on the
rhabdom of the photoreceptor cells in a particular ommatidium. When light is very
dim, sharpness of vision may not be as important as perception of form and
movement.
8
Biology in Physics: Is Life Matter?
Is Life Matter? Konstantin Bogdanov. isolated from each other. In this case the
lens of each ommatidium forms the inverted image of an object on the face of the
corresponding rhabdom. The compound eye can operate in the second mode ...
Konstantin Bogdanov, 2000
9
Diel Vertical Migration of Zooplankton in Lakes and Oceans: ...
Table 7.1 Some optical properties of an ommatidium of the compound eye of
Daphnia Authors Receptive field angle Central zones Heberdey and Kupka (
1941) 45◦ 13◦ Young and Downing (1976) 35◦ 10◦ Frost (1975) <15◦ Consi et al. (
1990) ...
The diameters of the lenses are 32 /ttn. so each ommatidium is set at an angle 32
/1200 = 0.027 radians (1.5°) to the next. The eye is presumably unable to
distinguish objects separated by angles less than this: a bee viewing a page 30
cm ...
R. McNeill Alexander, 1979
10 NACHRICHTEN, IN DENEN DER BEGRIFF «OMMATIDIUM» VORKOMMT
Erfahre, worüber man in den einheimischen und internationalen Medien spricht und wie der Begriff
ommatidium im Kontext der folgenden Nachrichten gebraucht wird.
Seeing triple
In Dr Floreano's arrangement, by contrast, each of the vertices of the triangle of detectors inside a single ommatidium can pair with each of the ... «The Economist, Jul 15»
Which animal has the most sensitive eyes?
In insects that fly during the day, each ommatidium has a sleeve of pigment that absorbs excessive light, ensuring they don't get dazzled. «BBC News, Feb 15»
MAPPING NEURAL CONNECTIONS
“The whole thing is absolutely crystalline in its arrangement,” Meinertzhagen says, with regular columns of neurons underlying each eye facet, or ommatidium. «BioTechniques.com, Nov 14»
Image sensor based on mantis shrimp vision detects cancer
The image sensor mimics that of the compound eye of the mantis shrimp, which contains a group of individual photocells called an ommatidium ... «Vision Systems Design, Okt 14»
Stroudsburg grad uses fellowship to study butterflies
Joyce, a senior, and her faculty mentor Marc Seid, Ph.D., assistant professor of biology, researched “Ommatidium Structure and Development ... «Pocono Record, Aug 14»
Guido LaPorta, Greater Pennsylvania Education Foundation
Senior Elizabeth Joyce of Stroudsburg and her faculty mentor, Marc Seid, Ph.D., assistant professor of biology, will research “Ommatidium ... «Citizens Voice, Aug 14»
Digital Agenda: Swiss, French & German scientists develop …
Each ommatidium is composed of a lens (172 microns), combined with an electronic pixel (30 microns). These sensors have advanced optical ... «EU News, Aug 13»
Insect Paparazzi: Eye of the Dragon
... dragonflies. Each ommatidium is a like a single pixel that makes up the dragonfly's visual world, and some dragonflies have nearly 30,000. «Scientific American, Jul 13»
Biologists: Starfish See with Compound Eyes on Their Arms
Each red cup corresponds to a single optical unit, ommatidium (Dan-Erik Nilsson / Lund University). “From an evolutionary point of view it is ... «Sci-News.com, Jul 13»
Starfish have eyes at the tips of their arms
Each red cup corresponds to a single optical unit, ommatidium, in an arthropod compound eye. Photo credit: Dan-Erik Nilsson, Lund University. «EarthSky, Jul 13»
