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AbstractAbstract
[en] The 26S proteasome is responsible for degradation of abnormal intracellular proteins, including oxidatively damaged proteins and may play a role as a component of a cellular antioxidative system. However, little is known about regulation of proteasome expression. In the present study, regulation of proteasome expression by the bifunctional enzyme inducer and a specific signaling pathway for this regulation were investigated in murine neuroblastoma cells. Expression of catalytic core subunits including PSMB5 and peptidase activities of the proteasome were elevated following incubation with 3-methylcholanthrene (3-MC). Studies using reporter genes containing the murine Psmb5 promoter showed that transcriptional activity of this gene was enhanced by 3-MC. Overexpression of AhR/Arnt did not affect activation of the Pmsb5 promoter by 3-MC and deletion of the xenobiotic response elements (XREs) from this promoter exerted modest effects on inducibility in response to 3-MC. However, mutation of the proximal AREs of the Psmb5 promoter largely abrogated its inducibility by 3-MC. In addition, this promoter showed a blunted response toward 3-MC in the absence of nrf2; 3-MC incubation increased nuclear levels of Nrf2 only in wild-type cells. Collectively, these results indicate that expression of proteasome subunit PSMB5 is modulated by bifunctional enzyme inducers in a manner independent of the AhR/Arnt-XRE pathway but dependent upon the Nrf2-ARE pathway
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S0006-291X(06)01042-4; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Biochemical and Biophysical Research Communications; ISSN 0006-291X;
; CODEN BBRCA9; v. 345(4); p. 1350-1357

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AbstractAbstract
[en] The characteristic of different types of isomeric forms of molecular exciplexes is presented on the base of semiempirical calculations of potential energy surfaces for molecular complexes, formed between anthracene (AN) and N,N-diethylaniline (DEA), naphthalene (NA) and triethylamine (TEA) and tetracyanobenzene (TCNB) and mesitylene (MS)
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54. international meeting of physical chemistry: Fast elementary processes in chemical and biological systems; Villeneuve d'Ascq (France); 26 Jun - 1 Jul 1995; (c) 1996 American Institute of Physics.; Country of input: International Atomic Energy Agency (IAEA)
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Everaarts, J.M.; Weerlee, E.M. van; Fischer, C.V.; Hillerbrand, M.Th.J.
Environmental behaviour of crop protection chemicals. Proceedings of an international symposium1997
Environmental behaviour of crop protection chemicals. Proceedings of an international symposium1997
AbstractAbstract
[en] The present study contributed towards establishing the status of a tropical and a moderate latitude marine ecosystem in terms of the concentration of anthropogenic, lipid associated, cyclic, halogenated hydrocarbons in surface sediments and benthic macroinvertebrates. Samples were obtained from the coastal region and the continental slope of Kenya (Indian Ocean), the Dutch coastal region and the continental shelf of the North Sea, and a bay area of Curacao (Netherlands Antilles, Caribbean). In surface sediments (Kenya), congeners CB28, CB52, CB101, CB118, CB153, CB138 and CB180, and the pesticides alpha-HCH and gamma-HCH, dieldrin, endrin and members of the DDT family were not identified, except in the estuarine zone of the Sabaki River. In North Sea surface sediment, the characteristics PCB pattern was always determined, and concentrations were particularly enhanced in sediment from the river mouths. Also, alpha-HCH, p,p'-DDD and p,p'-DDE were quantified in most samples. Regarding benthic invertebrates, CBs and p,p'-DDE were quantified. Some samples showed particularly enhanced levels in bivalve molluscs and certain penaeid prawns the Kenyan coastal region. The high levels present in the digestive (pyloric caeca) and reproductive (gonad) organs of seastar from the North Sea confirmed distinct concentration gradients. Sponges and tunicates from the bay area of Curacao accumulated CBs and p,p'-DDE, but not at very high concentrations. (author). 23 refs, 2 figs, 7 tabs
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International Atomic Energy Agency, Vienna (Austria); Food and Agriculture Organization of the United Nations, Rome (Italy); Proceedings series; 518 p; ISBN 92-0-104596-4;
; 1997; p. 407-431; IAEA; Vienna (Austria); International symposium on the use of nuclear and related techniques for studying environmental behaviour of crop protection chemicals; Vienna (Austria); 1-5 Jul 1996; IAEA-SM--343/45; ISSN 0074-1884; 


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Arnaud-Neu, F.; Asfari, Z.; Bouhroum, S.; Vicens, J.
XVII Mendeleev congress on general and applied chemistry. Summary of reports. Volume 4. Russian-French symposium Supramolecular systems in chemistry and biology. Chemical education. Russian-American symposium on chemical education. Biomolecular chemistry and biotechnology. Petrochemistry and catalysis. Symposium devoted to centenary from discovery of chromatography by M.S. Tsvet2003
XVII Mendeleev congress on general and applied chemistry. Summary of reports. Volume 4. Russian-French symposium Supramolecular systems in chemistry and biology. Chemical education. Russian-American symposium on chemical education. Biomolecular chemistry and biotechnology. Petrochemistry and catalysis. Symposium devoted to centenary from discovery of chromatography by M.S. Tsvet2003
AbstractAbstract
No abstract available
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Rossijskaya Akademiya Nauk, Moscow (Russian Federation); Rossijskoe Khimicheskoe Obshchestvo im. D.I. Mendeleeva, Moscow (Russian Federation); Natsional'nyj Komitet Rossijskikh Khimikov, Moscow (Russian Federation); Ministerstvo Promyshlennosti, Nauki i Tekhnologij Rossijskoj Federatsii, Moscow (Russian Federation); Ministerstvo Obrazovaniya Rossijskoj Federatsii, Moscow (Russian Federation); Kabinet Ministrov Respubliki Tatarstan, Kazan' (Russian Federation); Akademiya Nauk Respubliki Tatarstan, Kazan' (Russian Federation); 580 p; ISBN 5-94541-027-6;
; 2003; p. 9; 17. Mendeleev congress on general and applied chemistry; XVII Mendeleevskij s''ezd po obshchej i prikladnoj khimii; Kazan' (Russian Federation); 21-26 Sep 2003; 6 refs.

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Moll, Nikolaj; Gross, Leo; Mohn, Fabian; Curioni, Alessandro; Meyer, Gerhard, E-mail: nim@zurich.ibm.com, E-mail: lgr@zurich.ibm.com, E-mail: fmo@zurich.ibm.com, E-mail: cur@zurich.ibm.com, E-mail: gme@zurich.ibm.com2012
AbstractAbstract
[en] Using functionalized tips, the atomic resolution of a single organic molecule can be achieved by noncontact atomic force microscopy (nc-AFM) operating in the regime of short-ranged repulsive Pauli forces. To theoretically describe the atomic contrast in such AFM images, we propose a simple model in which the Pauli repulsion is assumed to follow a power law as a function of the probed charge density. As the exponent in this power law is found to be largely independent of the sample molecule, our model provides a general method for simulating atomically resolved AFM images of organic molecules. For a single perylene-tetracarboxylic-dianhydride (PTCDA) molecule imaged with a CO-terminated tip, we find excellent agreement with the experimental data. Our model eliminates the need to take into account the full tip and sample system and therefore reduces computational cost by three orders of magnitude. (paper)
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Available from http://dx.doi.org/10.1088/1367-2630/14/8/083023; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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New Journal of Physics; ISSN 1367-2630;
; v. 14(8); [13 p.]

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AbstractAbstract
[en] Energy flow and C-Hmethyl and C-Hring bond dissociations in vibrationally excited toluene in the collision with N2 and O2 have been studied by use of classical trajectory procedures. The energy lost by the vibrationally excited toluene upon collision is not large and it increases slowly with increasing total vibrational energy content between 5,000 and 45,000 cm-1. Intermolecular energy transfer occurs via both of V-T and V-V transfers. Both of V-T and V-V transfers increase as the total vibrational energy of toluene increases. When the total energy content ET of toluene is sufficiently high, either C-H bond can dissociate. The C-Hmethyl dissociation probability is higher than the C-Hring dissociation probability, and that in the collision with N2 is larger than with O2
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43 refs, 12 figs, 1 tab
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Journal Article
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Bulletin of the Korean Chemical Society; ISSN 0253-2964;
; v. 34(5); p. 1494-1502

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AbstractAbstract
[en] Data on methods for the preparation of naphthaldehydes, their physicochemical properties, structural characteristics and reactivities are generalised. Particular attention is given to procedures for formylation of naphthalenes and peri-interactions involving the aldehyde group in the α-position.
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Available from http://dx.doi.org/10.1070/RC2003v072n05ABEH000791; Country of input: International Atomic Energy Agency (IAEA)
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Russian Chemical Reviews (Print); ISSN 0036-021X;
; v. 72(5); p. 447-470

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AbstractAbstract
[en] This paper reports that world styrene demand, paced by a near doubling of combined requirements in East Asia and Oceania, could reach 19.3 million metric tons by 2000, an average growth rate of 3.7%/year. So concludes Chem Systems Inc., Tarrytown, N.Y., in a study of world styrene markets through the end of the century. Pacific Rim styrene production and consumption throughout the 1990s are predicted to make up increasingly larger shares of world markets, while demand and production lag in the U.S. and western Europe. Demand and capacity in other parts of the world will grow in real terms, increasing combined market shares only slightly. Most of the increase will be driven by demand in East Asia and Oceania, where consumption by century's end is expected to increase 4.48 million metric tons from 2.25 million tons in 1991. Meantime, Japan's styrene demand in 2000 is projected at 2.64 million tons, a 500,000 ton increase from 1991 demand but a net market loss of 1.9%
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Kapitanchuk, O.L.; Tey, J.; Keg, P.; Lam, Y.M.; Mhaisalkar, S.G.; Kapitanchuk, O.L.; Dell'Aquila, A.; Mastrorilli, P.; Nobile, C.F.; Suranna, G.P.; Marinelli, F.; Cosma, P.; Torsi, L.; Marchenko, A.A.; Fichou, D.
Materials of 7 International Conference on Electronic Processes in Organic Materials. Abstracts2008
Materials of 7 International Conference on Electronic Processes in Organic Materials. Abstracts2008
AbstractAbstract
No abstract available
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National Academy of Sciences of Ukraine, Kyiv (Ukraine); Institute of Physics of NAS of Ukraine, Kyiv (Ukraine); USA Air Force Research Laboratory Materials and Manufacturing Directorate, Dayton (United States); Lviv National Polythecnic University, Lviv (Ukraine); 192 p; 2008; p. 138-139; 7. International Conference on Electronic Processes in Organic Materials; Lviv (Ukraine); 26-30 Sep 2008; Available from Ukrainian INIS Centre
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AbstractAbstract
No abstract available
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Sao Paulo Univ., Sao Carlos (Brazil). Instituto de Fisica e Quimica; p. 54-55; 1975; p. 54-55; International Symposium on Electrets and Dielectrics; Sao Carlos, Sao Paulo, Brazil; 1 - 6 Sep 1975; Published in summary form only.
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