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Topic: Rod cell


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In the News (Mon 22 Jul 19)

  
  Backer Rod acts as an insulation and filler for log home chinking applications.
Backer Rod acts as an insulation and filler for log home chinking applications.
For Chinking Joints greater than 1/4", a round, flexible length of extruded polyethylene backer rod (it looks like a rope made of foam) is used to create a surface backing for the chinking.
Closed Cell provides a firm finished joint because it is a stiff material.
www.loghelp.com /backerod.html   (422 words)

  
  Rod - Wikipedia, the free encyclopedia
Rod (geometry), a straight and slender stick; a wand; a cylinder; hence, any slender bar, as of wood or metal.
Rod cell is found in the retina and is sensitive to light/dark (fl/white)
Rod (cryptozoology), a species of creature that flits about in the air at such a high speed as to not be seen by the naked eye, but which can be caught on video.
en.wikipedia.org /wiki/Rod   (240 words)

  
 Rod cell - Wikipedia, the free encyclopedia
Rod cells, or rods, are photoreceptor cells in the retina of the eye that can function in less intense light than can the other type of photoreceptor, cone cells.
The convergence of rod cells also tends to make peripheral vision very sensitive to movement, and is responsible for the phenomenon of individuals seeing something vague occur out of the corner of his or her eye.
Activation of a photoreceptor cell is actually a hyperpolarization; when they are not being stimulated, rods and cones depolarize and release a neurotransmitter spontaneously, and activation of photopigments by light sends a signal by preventing this.
en.wikipedia.org /wiki/Rod_cell   (976 words)

  
 Ying, Mol Vis 2000; 6:101-108.
Rod degeneration began at postnatal day 9 (P9), proceeding from the central retina to the peripheral retina (Figure 4), and occurred in a sequence that was quadrant-specific, such degeneration proceeding more rapidly in the inferior quadrants than in the superior quadrants (data not shown).
Consistent with the cone cell distribution in mouse retina, the rod cell degeneration in Tg98 mice proceeding from the central retina to the peripheral retina.
In this study, the rod degeneration proceeded from the central retina to the peripheral retina, a pattern similar to the distribution of cone cells in mouse retina, implicating that the rod degeneration could be caused by the loss of the support from cone cells.
www.molvis.org /molvis/v6/a14   (4067 words)

  
 Webvision: Circuitry for rod signals
The narrow-field bistratified rod amacrine cell, AII, is primarily postsynaptic to rod bipolar axon terminals in lower sublamina b of the IPL (30% of its input, Strettoi et al., 1992).
Dopaminergic amacrine cells are also thought to function in the circadian cycle of the shift from dark to light conditions, and in modulating the adaptational state of the whole retina.
Rod responses are carried to the next stage of processing in the IPL where divergence occurs to several different amacrine cell types, the most important of which are the AII and the A17 cells.
www.webvision.med.utah.edu /Rodpathw.html   (3173 words)

  
 Townes-Anderson, Mol Vis 1998; 4:12.
Rod and cone photoreceptors as well as other retinal nerve cell types could be optically trapped with a 980 nm diode laser mounted on an inverted light microscope using a 40x oil immersion objective numerical aperture of 1.3.
At the fine structural level, cells examined 2 or 5 days after trapping (3 photoreceptors; 1 multipolar cell) showed no abnormalities in the distribution or appearance of their organelles: the mitochondria were intact; the endoplasmic reticulum was not dilated; and the Golgi apparatus organization was normal (Figure 4B).
Cells with newly formed processes were chosen from the adherent side of the dish and photoreceptors from the opposite side of the dish were trapped and relocated (Figure 6).
www.molvis.org /molvis/v4/a12   (3141 words)

  
 Webvision: Amacrine cells
Cell A13 is a diffusely branched cell with a large cell body (12 um diameter) and fine dendrites bearing distinct beads at regular intervals that run through mostly strata 3-5 of sublamina b of the IPL to end up along the top of ganglion cell bodies.
The cone bipolar inputs are from axons in sublamina a, stratum 3-4 of sublamina b and stratum 5 of sublamina b.
SP-containing and A22 cells are wide-field amacrine cells (dendritic trees of 500 um span), often having large cell bodies (14-16 um) displaced to the ganglion cell layer, with their major dendritic stratification in strata 3 and 4 of sublamina b of the IPL.
webvision.med.utah.edu /amacrines2.html   (1602 words)

  
 Bandpass Filtering at the Rod to Second-Order Cell Synapse in Salamander (Ambystoma tigrinum) Retina -- Armstrong-Gold ...
rod stimulus was increased from 0.25 to ~3 Hz, the amplitude of
Ashmore JF, Falk G (1980) Responses of rod bipolar cells in the dark-adapted retina of the dogfish, Scyliorhinus canicula.
Detwiler PB, Hodgkin AL, McNaughton PA (1980) Temporal and spatial characteristics of the voltage response of rods in the retina of the snapping turtle.
www.jneurosci.org /cgi/content/full/23/9/3796   (7485 words)

  
 Late Retinal Progenitor Cells Show Intrinsic Limitations in the Production of Cell Types and the Kinetics of Opsin ...
rhodopsin-positive cells is caused by the depletion of P0-produced
rod photoreceptors was accompanied by an increase in bipolar cells.
that the early-migrating cells inhibit the late-migrating cells
www.jneurosci.org /cgi/content/full/20/6/2247   (7247 words)

  
 PX:Direct Corrections Holding Cell - Modular
Cell components are sized to fit through existing doors for assembly in locations where access is limited.
Cells can be broken down and moved to a new location.
Cells can be customized to your specifications including one or two food pass thrus, toilet cut-out and specific brand security locks.
www.pxdirect.com /holding_cell.htm   (365 words)

  
 FOCUS - April 2, 2004 - GENETICS: Receptors Discovered that Direct Rod Cell Development   (Site not responding. Last check: 2007-10-17)
HMS researchers have identified a new and surprising mechanism by which rod photoreceptors--the exquisitely specialized light-gathering cells that line the retina--develop from a pool of undifferentiated precursors.
"Rods are especially susceptible to genetic lesions that lead to their demise," said senior author Connie Cepko, HMS professor of genetics.
To turn into a rod, for example, a retinal progenitor cell must encounter a set of environmental cues, but it must do so at a time when it is capable of responding.
focus.hms.harvard.edu /2004/April2_2004/genetics.html   (975 words)

  
 Activation of mislocalized opsin kills rod cells: A novel mechanism for rod cell death in retinal disease -- Alfinito ...
Activation of mislocalized opsin kills rod cells: A novel mechanism for rod cell death in retinal disease -- Alfinito and Townes-Anderson 99 (8): 5655 -- Proceedings of the National Academy of Sciences
Activation of mislocalized opsin kills rod cells: A novel mechanism for rod cell death in retinal disease
Rod photoreceptors are highly compartmentalized sensory neurons that maintain strict ultrastructural and molecular polarity.
www.pnas.org /cgi/content/abstract/99/8/5655   (498 words)

  
 Rod cell - Rod/Cone Cell Enlargement
Cell walls of Arthrobacter crystallopoietes were prepared from cells grown as spheres and from peptone- and succinate-induced rod stage cells.
Rod cells are present in the retinas of vertebrates and contain the
In rods the photopigment is in stacks of membranous disks separate from the outer cell membrane.
xn--cjr146bb34a.com /xyup/rod-cell.html   (514 words)

  
 Glial Remodeling and Neural Plasticity in Human Retinal Detachment with Proliferative Vitreoretinopathy -- Sethi et al. ...
Cells staining brightly in the outermost stratum of the INL were probably horizontal cells (arrow), whereas larger cells in the innermost stratum were probably amacrine cells.
Surviving rod OS and IS were visible in the photoreceptor layer (PRL) with redistribution of rod opsin to cell bodies in the ONL.
of retinal ganglion cell neurite outgrowth on Müller cells
www.iovs.org /cgi/content/full/46/1/329   (7793 words)

  
 STAT3-Mediated Signaling in the Determination of Rod Photoreceptor Cell Fate in Mouse Retina -- Zhang et al. 45 (7): ...
rod photoreceptors in the retina was not affected by the presence
Cell growth arrest and induction of cyclin-dependent kinase inhibitor p21 WAF1/CIP1 mediated by STAT1.
Cell commitment and differentiation in explants of embryonic rat neural retina: comparison with the developmental potential of dissociated retina.
www.iovs.org /cgi/content/full/45/7/2407   (3547 words)

  
 Webvision Home Page
Stratification of amacrine and ganglion cells in relationship to bipolar cell axons
Ganglion cells that are involved in the circadian clock
Myelination of regenerating goldfish optic nerve axons in the lesion by Schwann cells
webvision.med.utah.edu   (567 words)

  
 William Zimmerman   (Site not responding. Last check: 2007-10-17)
In the vertebrate retina light is detected by light absorbing pigments embedded in the outer membranes of the rod and cone cells.
The photoreceptor cell membranes are particularly susceptible to such oxidative damage because most of the fatty acids of the phospholipids are polyunsaturated and the intensity of light and concentration of oxygen are very high.
Professor Zimmerman's laboratory is investigating the biochemical mechanisms by which rod cell membranes are protected from the oxidative damage initiated by free radicals.
www.amherst.edu /~biology/faculty/zimmerman.html   (457 words)

  
 Kool-Rod, closed cell backer rod
Select the proper rod diameter and cut to length or use directly from the spool.
With a blunt instrument or roller, uniformly install rod at a level recommended by the sealant manufacturer, specifier or architect.
Do not tear, puncture, twist or overly compress the backer rod during installation.
www.deckoseal.com /791.htm   (480 words)

  
 Backer Rod
Denver Foam® is an open cell polyurethane backer rod serving as a backing for elastomeric and other applied caulking sealants.
Denver Foam® is an open cell backer rod allowing air to reach both sides of sealant, assuring you the required complete cure.
The open cell construction eliminates the out-gassing and cold flow problem associated with closed cell polyethylene Backer Rods.
www.bayindustries.com /backerrod/denverfoam.html   (492 words)

  
 Backer Rod
The backer material you use is an important part of performance of your caulk joint.
Ozark Log Home Supply distributes a number of types and profiles of backer rod including the Grip StripTM and Half Rod.
You should select backer rod based upon your particular needs.
www.ozarkloghomes.com /backerrod.html   (350 words)

  
 Cell, rod definition - Medical Dictionary definitions of popular medical terms easily defined on MedTerms
Cell, rod definition - Medical Dictionary definitions of popular medical terms easily defined on MedTerms
Cell, rod: A type of specialized light-sensitive cell (photoreceptor) in the retina of the eye that provides side vision and the ability to see objects in dim light (night vision).
By contrast, the cones are the retinal photoreceptors that provide sharp central vision and color vision.
www.medterms.com /script/main/art.asp?articlekey=10549   (121 words)

  
 Plastic Sheet, Rod and Tube by K-mac Plastics
Plastic Sheet, Rod, Tube, Bar Stock, Balls, Discs Selections
Polyurethane Tygothane® Tubing C-544-IB PPS Rods (Poly Phenyl Sulfide)
K-mac Plastics is distributor of Plastic Sheet, Round Rod, Hex Rod, Bar Stock, Balls, Discs, Mirrors, Cutting Board, Square, Coiled and Round Tubes, Ceramics, Fasteners, Air Hose, Vacuum Hose and Duct Hose.
k-mac-plastics.net   (183 words)

  
 RAM Mounts cell phone mount
No matter where you go, you probably take your cell phone with you.
And did you know RAM has mounts for practically every cell phone made?
Simple to use and install, kits are available for boats, cars, motorcycles, and more.
www.ram-mount.com /cell_phone_mount/smart_cell_phone_mount.htm   (226 words)

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