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Topic: Cuticula


In the News (Fri 17 Feb 12)

  
  Ecdysis: Definition and Links by Encyclopedian.com - All about Ecdysis
Ecdysis is the molting[?] of the cuticula[?] in arthropods and related groups (Ecdysozoa).
Since the cuticula of these animals is also the skeletal support of the body and is inelastic, it is shed during growth and a new covering of larger dimensions is formed.
During the resting period preparation is made by the secretion of fluid from the molting glands of the cellular layer and the loosening of the underpart of the cuticula.
www.encyclopedian.com /ec/Ecdysis.html   (199 words)

  
 Checklist of the Collembola: Some notes on the Ultrastructure of the Cuticula
The extracellular cuticula is differentiated from outside to inside into the epicuticula, the procuticula or exocuticula, and the subcuticula or endocuticula.
The striations appear to be canals left by protoplasmic filaments that, during the formative stage of the cuticula, extend outward from the epidermal cells.
The separation of the old cuticula from the epidermis is accomplished by a moulting liquid formed by the epidermal cells, and/or by special exuvial glands of the epidermis, that dissolves the inner layers of the endocuticula and thus frees the rest of the cuticula from the epidermis (after Snodgrass, 1935).
www.geocities.com /fransjanssens/publicat/integum/integum.htm   (7777 words)

  
 Checklist of the Collembola: Some notes on the Ultrastructure of the Cuticula. Epicuticula
Palacios-Vargas, J. The hexagonal primary granular ultrastructure of the surface of the epicuticle is a primary characteristic of the cuticula of all Collembola.
Tuberculation of the cuticula increases the surface of the cuticula dramatically.
Effectively, the cuticula of Podura and in particular the formation of the tubercles is realised according to a scheme that is analog to that observed in Hypogastruridae (Dallai and Malatesta, 1973:137).
webhost.ua.ac.be /collembola/publicat/integum/epicut.htm   (3442 words)

  
 Checklist of the Collembola: Some notes on the Ultrastructure of the Cuticula. Discussion
To summarise: resorption of breakdown material from the old cuticula occurs at the microvillar shaft, while secretion of the material for the deposition of the new cuticula occurs at the intermicrovillar base.
Observe the actin filaments of the microvilli in the cross-sections of the procuticular pores in Fig.e1 (nCu = new cuticula, Ex = exuvial space, Gl = lumen of gland).
The epicuticle and the sclerotized cuticula are not affected by chitinase.
webhost.ua.ac.be /collembola/publicat/integum/discuss.htm   (5063 words)

  
 Abstract 4423 from Intl. Bot. Congress 1999   (Site not responding. Last check: 2007-10-22)
Now the question about the domination of stoma or cuticula mechanisms of protection of assimilative apparatus of plants under the effect of toxicants is discussing actively.
Under the weak concentration of HF the conductivity of cuticula was increased in 2 times in comparison with the control.
It is confirmed by the increasing of conductivity of cuticula for water molecules.
www.biologie.uni-hamburg.de /b-online/ibc99/ibc/abstracts/listen/abstracts/4423.html   (189 words)

  
 Method for dyeing strawberry - Patent 5310567   (Site not responding. Last check: 2007-10-22)
A method for dyeing strawberries comprises the steps of removing the cuticula layer of unripe strawberries, charging the strawberries in a container together with a dyeing solution containing the dyeing agent, degassing the contents of the container, then sealing the container and heating the sealed container.
In the present invention, the strawberries may be dyed with the foregoing dyeing agent or dyeing solution in any manner, but it is desirable to previously remove the cuticula layer present on the surface of the strawberries by dissolving out the same with a hot alkaline solution prior to the dyeing procedures.
The removal of the cuticula layer from the surface of the strawberries can be carried out by immersing the strawberries in an aqueous solution of sodium hydroxide having a concentration ranging from 1 to 6%, preferably 2 to 4% at a temperature ranging from 80.degree.
www.freepatentsonline.com:9003 /5310567.html   (3575 words)

  
 Forest fire sensor inspired by nature
These organs are pits containing a large number of receptors ("sensilla") that are extremely responsive precisely to the infrared (IR) radiation that comes from a forest fire.
Instead of the cuticula sphere, the replica uses a polyethylene platelet.
Polyethylene absorbs infrared radiation in a similar spectrum as cuticula and also expands in response.
www.eurekalert.org /pub_releases/2004-07/uob-ffs072804.php   (527 words)

  
 Fire beetle fights the fire bugs
The sensor comprises a sphere made of cuticula, the same substance that forms the insect's armour.
The cuticula is particularly responsive to thermal radiation with a wavelength of about three micrometers, typically the same given out by a big forest fire.
The cuticula sphere has been replaced by a small plate made out of polyethylene -- the same plastic used in supermarket shopping bags -- which absorbs infrared in the three-micrometer range and also expands in response, triggering a piezo crystal, which gives an electrical discharge when it is disturbed.
www.terradaily.com /2004/040729023234.b1c45vhx.html   (642 words)

  
 cuticula insects : The Termite Site   (Site not responding. Last check: 2007-10-22)
Insect Composition of the Cuticula Insect Development of Appendages Insect Differentiation of the...
is inserted in a tiny sphere made of "cuticula" - the same material that forms an insect's armour...
Hardens the epidermis and cuticula of the canopy.
www.thetermitesite.com /terms/insects/cuticula-insects.htm   (298 words)

  
 [No title]   (Site not responding. Last check: 2007-10-22)
The cuticula of the cornual tube is untanned and non-sclerotized.
Along the lumen of the cornua it is extremely folded and papillated, forming in situ small cavities which contain osmiophilic drops of the secretion, often accumulated in groups.
During eversion of the cornua the secretion merges on the surface of the cuticula.
www.elsevier.com /cdweb/journals/00448435/articles/27/3/004484359689502.abstract.en   (246 words)

  
 File: <BC-51B
  This continuous envelope of cuticula which incases the insect is part of the integument which is caste and replaced when the body size is in­creased by growth.
The external surface of the cuticula is rarely smooth.
processes since the protuberance is composed entirely of heavily sclerotized cuticula and are fixed to and confluent with the exoskeleton.
faculty.ucr.edu /~legneref/biotact/bc-51b.htm   (6109 words)

  
 The Water Bear Web Base (monthly internet magazine)
As we have already learnt in the April issue the tardigrade is going to leave its old cuticula after moulting.
But possibly the erratic movements before moulting alone are sufficient to tear the old cuticula and to free the tardigrade.
When combining the results of our investigations from two different perspectives we come to the conclusion that the cuticula can be understood as a network of slightly lens-shaped elements, a craquelé, like smelting ice.
www.baertierchen.de /wb_mai03.html   (569 words)

  
 Read about Ecdysis at WorldVillage Encyclopedia. Research Ecdysis and learn about Ecdysis here!   (Site not responding. Last check: 2007-10-22)
In preparation for ecdysis the arthropod will become inactive for a period of time, and then by crawling movements pushes forward in the old
Often times this initial crack within the integumentary shell will be caused by an increase in blood pressure within the body (in combination with movement), forcing an expansion across its exoskeleton, leading to an eventual crack that allows for certain organisms such as spiders to extricate themselves from.
For most organisms, the resting period is used as a stage of preparation in the secretion of fluid from the molting glands of the cellular layer and the loosening of the underpart of the cuticula occurs.
encyclopedia.worldvillage.com /s/b/Ecdysis   (247 words)

  
 Untitled
The finger-shaped protrusion of an individual mechanoreceptor is inserted into a tiny sphere made of "cuticula"--the same material that forms an insect's armor.
"[The] jewel beetle's cuticula is particular good at absorbing thermal radiation with a wavelength of about three micrometers--exactly the radiation that is typically emitted by a fierce forest fire," says Schmitz.
Assisted by doctoral candidate Martin Muller, Schmitz reconstructed the sensor using the simplest of components.
telecomdirect.pwcglobal.com /do.php/8841?tpl=/look/printfriendly.tpl   (476 words)

  
 The Water Bear Web Base (monthly internet magazine)
When studying the cuticula in an advanced Sherlock Holmes manner you will find out that it has in fact two 'ghost-eyes' which normally cannot be seen when looking at the complete, living animal.
Even though the photomicrograph shown below is not competitive in terms of aesthetic and technical quality - kind of cellar portrait - the two lens-like spots in the tardigrade head region become apparent.
The cuticula is fully transparent in those areas and has no granulation.
www.baertierchen.de /wb_jun03.html   (1108 words)

  
 Belt Ibérica S.A. ARTICULOS   (Site not responding. Last check: 2007-10-22)
These, in turn, are stimulated by the expansion of tiny spheres of a material called cuticula.
Dr Schmitz and Dr Müller have constructed a prototype artificial version of this sensor using tiny plates of polyethylene instead of cuticula.
Polyethylene responds to the same wavelength as cuticula and expands similarly in response.
www.belt.es /articulos/articulo.asp?id=2099   (411 words)

  
 Jahrbuch-CD der MPG 2003 - Leaf morphology and anatomy in
Species differed in leaf-fall behaviour (evergreen, deciduous) as well as in the fate of submerged leaves (species either shed or keep their submerged leaves).
Leaves of all species showed various traits generally related to leathery leaves and/or xeromorphism, e.g., large epidermal cells, thick outer epidermis walls, thick cuticula, compact spongy parenchyma with only few and small intercellular spaces, sunken stomata, and transcurrent vascular bundles with a strong sclerenchymatous bundle sheath.
We found no trend to differentiate evergreen from deciduous species by leaf morphology and anatomy.
www.mpg.de /forschungsergebnisse/wissVeroeffentlichungen/archivListenJahrbuch/2002/22/publZIM92.html   (219 words)

  
 cuticula 2 - OneLook Dictionary Search   (Site not responding. Last check: 2007-10-22)
We found one dictionary with English definitions that includes the word cuticula 2:
Tip: Click on the first link on a line below to go directly to a page where "cuticula 2" is defined.
cuticula 2 : Stedman's Online Medical Dictionary, 27th Edition [home, info]
www.onelook.com /?w=cuticula+2   (73 words)

  
 Further Mollusc Classes
The subphylum Aculifera comprises groups of all those molluscs, that originally do not produce a complete shell.
Instead they are protected by a hard exterior skin called a cuticula.
This cuticula additionally is protected by calcareous spines (spiculi).
www.weichtiere.at /Mollusks/Andere/haupt.html   (212 words)

  
 cuticula - OneLook Dictionary Search
cuticula : WordNet 1.7 Vocabulary Helper [home, info]
cuticula : Stedman's Online Medical Dictionary, 27th Edition [home, info]
cuticula : Dorland's Illustrated Medical Dictionary [home, info]
www.onelook.com /?w=cuticula&ls=a   (118 words)

  
 cuticula - OneLook Dictionary Search
We found 10 dictionaries with English definitions that include the word cuticula:
Tip: Click on the first link on a line below to go directly to a page where "cuticula" is defined.
Phrases that include cuticula: cuticula dentis, cuticula pili, cuticula 2, cuticula ae, cuticula vaginae folliculi pili
www.onelook.com /?w=cuticula&ls=a   (118 words)

  
 Dictionary definition of CUTICULA PILI   (Site not responding. Last check: 2007-10-22)
A layer of overlapping shingle-like cells that invest the hair cortex and serve to lock the hair shaft in its follicle.
Cuticula vaginae folliculi pili, cuticle of overlapping shingle-like cells lining the follicle of the hair.
Please select first two letters of word you are looking for
www.dictionarybarn.com /CUTICULA-PILI.php   (119 words)

  
 Definition of cuticula - Merriam-Webster Online Dictionary
cuticula is one of more than 1,000,000 entries available at Merriam-WebsterUnabridged.com.
For More Information on "cuticula" go to Britannica.com
Get the Top 10 Search Results for "cuticula"
www.m-w.com /dictionary/cuticula   (82 words)

  
 Osha Standard   (Site not responding. Last check: 2007-10-22)
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www.securitiesfraudalert.com /osha_standard.html   (771 words)

  
 Mesothelioma Picture   (Site not responding. Last check: 2007-10-22)
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www.tobaccoresource.com /mesothelioma_picture.html   (743 words)

  
 spinal.ca - cuticula   (Site not responding. Last check: 2007-10-22)
The Posture Pump can help relieve back pain in the...
We couldn't find any results for cuticula in Books.
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spinal.ca /cuticula/reference/search   (177 words)

  
 Black Cat Scan   (Site not responding. Last check: 2007-10-22)
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www.asbestosisresource.com /black_cat_scan.html   (793 words)

  
 Arm Pain   (Site not responding. Last check: 2007-10-22)
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www.aboutsilica.com /arm_pain.html   (632 words)

  
 Mexikon - the lexicon of mexican cactuses   (Site not responding. Last check: 2007-10-22)
particular will be occured at plants, which will be found steady on moist habitats (rainforest) and will present a very thin cuticula (hygrophytes).
At plants on dry habitats, which will show appropriate adaptation-guises (
widely will be restricted through development of a strong cuticula.
www.emuench.de /eMexikon4/Kakteen53.htm   (263 words)

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