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  • Wiley  (5)
  • American Association for the Advancement of Science (AAAS)  (4)
  • Blackwell Publishing Ltd  (4)
  • American Physical Society  (3)
  • Heidelberg: Springer
  • 1990-1994  (5)
  • 1985-1989  (11)
  • 1
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    Interchain decay of soliton pairs in polyacetylene (1988)
    American Physical Society
    Details
    Publication Date: 1988-06-15
    Print ISSN: 0163-1829
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society
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  • 2
    Electronic Resource
    Electronic Resource
    Formation and Fragmentation of Protostellar and Protoplanetary Disks (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 675 (1992), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1992.tb56813.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Patterns of sediment composition of Jamaican fringing reef facies (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 34 (1987), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Recent carbonate sediments from Jamaican north coast fringing reefs were collected along three parallel traverses in the vicinity of Discovery Bay. Each traverse extended from near shore across the back reef, reef crest, and fore reef to a depth of 75 m. Relative abundances of the biotic constituents vary between sites, reflecting general patterns of reef community composition. The sediment is dominated by highly comminuted coral fragments (27·1% to 63·1%), plates of the calcareous green alga Halimeda (0·4% to 38·7%), coralline algae (4·7% to 16·2%) and the encrusting foraminiferan Homotrema rubrum (0·7% to 9·5%), with lesser amounts of other taxonomic groups (non-encrusting foraminifera 1·3–5·5%; molluscs 1·4–7·0%; echinoderms 0·9–5·0%). Coral fragments, coralline algae and particles of Homotrema rubrum dominate the sediments of the shallow portions of the fore reef (5–15 m), whereas plates of Halimeda are most abundant in sediments from the back reef and deeper portions of the fore reef (〈inlineGraphic alt="geqslant R: gt-or-equal, slanted" extraInfo="nonStandardEntity" href="urn:x-wiley:00370746:SED77:ges" location="ges.gif"/〉 24 m). Q-mode cluster analysis, using sediment constituent data, resulted in the delineation of four reef biofacies over the depth range of this study (1–75 m).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1987.tb00561.x
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  • 4
    Electronic Resource
    Electronic Resource
    The transmembrane topology of the sn-glycerol-3-phosphate permease of Escherichia coli analysed by phoA and lacZ protein fusions (1988)
    Oxford, UK : Blackwell Publishing Ltd
    Molecular microbiology 2 (1988), S. 0 
    Details
    ISSN: 1365-2958
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: The Escherichia coli glpT gene encodes a transport protein that mediates uptake of sn-glycerol-3-phosphate. This permease is a member of a class of bacterial organophosphate permeases which transport substrates by antiport with inorganic phosphate. The glpT gene product, probably an oligomer of a single polypeptide chain, is thought to span the cytoplasmic membrane several times, as predicted by the hydropathic profile. Protein fusions, in which varying lengths of the amino-terminal end of the permease is attached to alkaline phosphatase (phoA) and to β-galactosidase (lacZ) were constructed. On the assumption that phoA fusions only exhibit high enzymatic activity when fused to extra-cytoplasmic regions of the target protein, whereas lacZ fusions will only be active when the β-galactosidase portion is attached to cytoplasmic domains of the target protein, the activities of the fusions were used to test a two-dimensional model for the permease. The model proposes that glpT contains 12 transmembrane segments divided by a larger cytoplasmic region. Despite some limitation caused by hot-spot sites of transpositions, the TnphoA approach was consistent with the model. In contrast, we feel that the enzymatic activity of lacZ fusions is only a limited parameter for studying the topology of a complex membrane protein.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2958.1988.tb00074.x
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  • 5
    Electronic Resource
    Electronic Resource
    Plasma membrane lipid metabolism of petunia petals during senescence (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 90 (1994), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The specific activities of 6 enzymes, which are involved in the synthesis and catabolism of membrane lipids, were monitored in plasma membranes isolated from petunia petals during senescence. These included phosphatidylinositol (PI) kinase (EC 2.7.1.67), phosphatidylinositol monophosphate (PIP) kinase (EC 2.7.1.68). diacylglycerol (DAG) kinase (EC 2.7.1.107), phospholipase A (EC 3.1.1.4) and PIP- and PIP2-phospholipase C˙(EC 3.1.4.3). Using endogenous substrate, the [32P]PA and [32P]PIP2 formation increased to 140 and 200%, respectively, of the day 1 value by 4 days after harvest. There was no significant change in [32P]PIP formation during the same time period. On the fifth day the petals wilted and the [32P]PA and [32P]PIP formation declined significantly. In contrast, the [32P]PIP2 formation remained high in the day 5 petals. When the lipid kinase activities were assayed in the membranes in the presence of exogenous substrate the specific activity of all of the enzymes increased. and the changes in [32P]PA production over the 5-day period were similar to those observed with endogenous substrate. When exogenous PI and PIP were added, however, there was no longer an increase in [32P]PIP2 formation by plasma membranes of day 4 petals and [32P]PIP formation significantly decreased. The relative decrease in PIP and PIP2 formation by day 4 membranes when exogenous substrate was added may have resulted from differences in the lipase activities in the day 1 and day 4 membranes. The plasma membrane A-type phospholipase activity increased throughout the 5 day period, and phospholipase C activity increased two-fold between day 1 and day 4. Such changes in the metabolism of the plasma membrane lipids during flower senescence would affect the ability of the petals to use inositol phospholipid-based signal transduction pathways.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1994.tb00388.x
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  • 6
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    Pinned mode in polyacetylene: A distribution of soliton-lattice densities (1988)
    American Physical Society
    Details
    Publication Date: 1988-09-15
    Print ISSN: 0163-1829
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society
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  • 7
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    The neuron-specific protein PGP 9.5 is a ubiquitin carboxyl-terminal hydrolase (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-11-03
    Description: A complementary DNA (cDNA) for ubiquitin carboxyl-terminal hydrolase isozyme L3 was cloned from human B cells. The cDNA encodes a protein of 230 amino acids with a molecular mass of 26.182 daltons. The human protein is very similar to the bovine homolog, with only three amino acids differing in over 100 residues compared. The amino acid sequence deduced from the cDNA was 54% identical to that of the neuron-specific protein PGP 9.5. Purification of bovine PGP 9.5 confirmed that it is also a ubiquitin carboxyl-terminal hydrolase. These results suggest that a family of such related proteins exists and that their expression is tissue-specific.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wilkinson, K D -- Lee, K M -- Deshpande, S -- Duerksen-Hughes, P -- Boss, J M -- Pohl, J -- New York, N.Y. -- Science. 1989 Nov 3;246(4930):670-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2530630" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; B-Lymphocytes/enzymology ; Base Sequence ; Cattle ; DNA/genetics ; Humans ; Isoenzymes/genetics ; Molecular Sequence Data ; Neuropeptides/*genetics/isolation & purification ; Sequence Homology, Nucleic Acid ; Thiolester Hydrolases/*genetics/isolation & purification ; Ubiquitin Thiolesterase
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 8
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    Stellar cosmogony: formation and evolution of low mass stars (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-06-30
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boss, A P -- New York, N.Y. -- Science. 1989 Jun 30;244(4912):1598.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17817283" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    High temperatures in the early solar nebula (1988)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1988-07-29
    Description: One fundamental controversy about terrestrial planet and asteroid formation is the discrepancy between meteoritical evidence for high temperatures (1500 K to 2000 K) in the inner solar nebula, and much lower theoretical temperature predictions on the basis of models of viscous accretion disks that neglect compressional heating of infalling gas. It is shown here that rigorous numerical calculations of the collapse of a rotating, three-dimensional presolar nebula are capable of producing temperatures on the order of 1500 K in the asteroid region (2.5 astronomical units), in either nearly axisymmetric or strongly nonaxisymmetric nebula models. The latter models may permit significant thermal cycling of solid components in the early inner solar nebula.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boss, A P -- New York, N.Y. -- Science. 1988 Jul 29;241(4865):565-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17774577" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    The origin of the moon (1986)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1986-01-24
    Description: The origin of the moon is considered within the theory of formation of the terrestrial planets by accumulation of planetesimals. The theory predicts the occurrence of giant impacts, suggesting that the moon formed after a roughly Mars-sized body impacted on the protoearth. The impact blasted portions of the protoearth and the impacting body into geocentric orbit, forming a prelunar disk from which the moon later accreted. Although other mechanisms for formation of the moon appear to be dynamically impossible or implausible, fundamental questions must be answered before a giant impact origin can be considered both possible and probable.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boss, A P -- New York, N.Y. -- Science. 1986 Jan 24;231(4736):341-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17735007" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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