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Topic: Tricosane


In the News (Sat 26 Dec 09)

  
 [No title]   (Site not responding. Last check: 2007-11-06)
Frass from larvae of the corn earworm, Heliothis zea (Boddie) and scales from H. ea moths (that are known to contain the host-seeking stimulus, tricosane) stimulate and orient host-seeking activity in female Microplitis croceipes (Cresson), a larval parasite of H. ea, and Trichogramma spp., egg parasites of H. ea.
When larval frass, moth scales, and tricosane were used as sign stimui (releasers) for M. croceipes, T. pretiosum (Riley), and T. achaeae Nagaraji and Nagarkatti, respecively, at time of their release from laboratoy containers, parasite performance improved, resulting in significantly increased rates of parasitizatio over that of unstimulated parasites.
Stimulation of M. croceipes with larvql frass had an overriding effect on this parasite's innate tendency to disperse upon release, thereby increasing the numbers remainging and prolonging their retention in the target are.
www.cpes.peachnet.edu /Lewis/ab177.HTM   (205 words)

  
 Assessment of All-Atom Potentials for Modeling Membranes...   (Site not responding. Last check: 2007-11-06)
We present and evaluate the performance of an all-atom hydrocarbon potential for use in computer simulations of lipids.
The performance is judged by comparing the results of constant pressure and temperature molecular dynamics simulations to experimental data for normal alkanes: solid octane and tricosane, and liquid butane, octane, tetradecane, and eicosane.
The model exhibits good overall agreement with experimentally determined crystal structures, densities, energies, and diffusion constants, although some detailed aspects of the Liquid structure and conformational equilibria are not quantitatively reproduced.
www.cmm.upenn.edu /publications/abstracts/tobias97b.html   (185 words)

  
 BBC NEWS | Europe | Jersey | Beach warning plans for children
Health protection officers want to advise children after a chemical which could be dangerous was washed on up the beach at Greve de Lecq.
The chemical, Tricosane, which can be harmful if swallowed and which can irritate the skin, washed up in white waxy lumps last week.
It is though the Tricosane which was washed up may have been discharged from a cargo ship or tanker.
news.bbc.co.uk /2/low/europe/jersey/4304859.stm   (150 words)

  
 Tricosane - CAS 638-67-5 - Catalog of Chemical Suppliers   (Site not responding. Last check: 2007-11-06)
Tricosane - CAS 638-67-5 - Catalog of Chemical Suppliers
Visit our website to find more information like MSDS, infra-red (IR), molfile, sdf file, structure, price, a catalog of over 130000 chemicals and over 150 chemical suppliers.
You may also add your own catalog of chemicals for free.
www.chemexper.com /chemicals/supplier/cas/638-67-5.html   (47 words)

  
 The Bending Elasticity of 1-Monoolein upon Relief of Packing Stress
This transition is understood to occur because packing stresses in the hydrophobic regions of the H
C in the absence of 9- cis -tricosene would constitute at least 50% of the total equilibrium free energy.
With tricosane, the packing stress cannot be completely relieved because tricosane melts at 47.6
pubs.acs.org /cgi-bin/jtext?langd5/16/i10/abs/la991408g   (332 words)

  
 [No title]   (Site not responding. Last check: 2007-11-06)
X-ray diffraction patterns of binary mixtures of normal tricosane and tetracosane at 20_C (powder method) show the presence of two new phases, here denoted
The crystal structure of these phases is orthorhombic; the structure of the
With increasing temperature and concentration, the experimental observations, both by X-ray diffraction and differential thermal analysis, made it possible to modify the binary phase diagram of n-C
www.elsevier.com /cdweb/journals/00406031/articles/249/0/004060319401923.abstract.en   (63 words)

  
 [No title]   (Site not responding. Last check: 2007-11-06)
It is shown that several factors may cause these post-growth shape transitions: surface minimization, uptake and subsequent sweating of solvent material, and polymorphic phase conversion.
It is shown that the first two recrystallization mechanisms are the most important for tricosane (n-C
Surface minimization by increasing the thickness of the crystals is particularly favorable.
www.elsevier.com /cdweb/journals/00220248/articles/233/4/S002202480101602.abstract.en   (143 words)

  
 BBC NEWS | World | Europe | Jersey | Beaches hit by chemical spillage
A white waxy substance has been washed up along parts of the north coast, including Greve De Lecq.
It has been identified as Tricosane and experts think it may have been discharged from a cargo ship or tanker.
They warn it could be harmful if it is inhaled, swallowed or comes in contact with the skin.
news.bbc.co.uk /go/newsFeedXML/moreover/-/1/hi/world/europe/jersey/4291143.stm   (178 words)

  
 [No title]   (Site not responding. Last check: 2007-11-06)
Mechanissm causing increas in rate of parasitization by Trichogramma spp.
When the effect of the kairomone, tricosane, on parasitization by Trichogramma achaeae Nagaraja and Nagarkatti of eggs of Heliothis zea (Boddie) was studied in petri dish test, the geaes percentage parasitization (X=64%) was obtained if the entirie filter paper was treated.
Treatment of smaller area (about the eggs) resulted in decreased parasitism.
www.cpes.peachnet.edu /Lewis/ab176.HTM   (190 words)

  
 [No title]
Engineering Controls: Use adequate ventilation to keep airborne concentrations low.
OSHA Vacated PELs: Tricosane: No OSHA Vacated PELs are listed for this chemical.
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
www.coleparmer.com /catalog/file_redirect.asp?file=Msds/11531.htm   (790 words)

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