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  • 1995-1999  (43)
  • 1970-1974  (6)
  • 1945-1949  (9)
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  • 1
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    Regulation of mammalian circadian behavior by non-rod, non-cone, ocular photoreceptors (1999)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1999-04-16
    Description: Circadian rhythms of mammals are entrained by light to follow the daily solar cycle (photoentrainment). To determine whether retinal rods and cones are required for this response, the effects of light on the regulation of circadian wheel-running behavior were examined in mice lacking these photoreceptors. Mice without cones (cl) or without both rods and cones (rdta/cl) showed unattenuated phase-shifting responses to light. Removal of the eyes abolishes this behavior. Thus, neither rods nor cones are required for photoentrainment, and the murine eye contains additional photoreceptors that regulate the circadian clock.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freedman, M S -- Lucas, R J -- Soni, B -- von Schantz, M -- Munoz, M -- David-Gray, Z -- Foster, R -- New York, N.Y. -- Science. 1999 Apr 16;284(5413):502-4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Alexander Fleming Building, Imperial College of Science, Technology and Medicine, London, SW7 2AZ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10205061" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Clocks/*physiology ; Circadian Rhythm/*physiology ; *Light ; Mice ; Mice, Transgenic ; Motor Activity ; *Ocular Physiological Phenomena ; Photoreceptor Cells, Vertebrate/*physiology ; Pigments, Biological/physiology ; Retinal Cone Photoreceptor Cells/physiology ; Retinal Pigments/physiology ; Retinal Rod Photoreceptor Cells/physiology
    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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  • 2
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    Abscisic acid signaling through cyclic ADP-ribose in plants (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-02-12
    Description: Abscisic acid (ABA) is the primary hormone that mediates plant responses to stresses such as cold, drought, and salinity. Single-cell microinjection experiments in tomato were used to identify possible intermediates involved in ABA signal transduction. Cyclic ADP-ribose (cADPR) was identified as a signaling molecule in the ABA response and was shown to exert its effects by way of calcium. Bioassay experiments showed that the amounts of cADPR in Arabidopsis thaliana plants increased in response to ABA treatment and before ABA-induced gene expression.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Y -- Kuzma, J -- Marechal, E -- Graeff, R -- Lee, H C -- Foster, R -- Chua, N H -- HD17484/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1997 Dec 19;278(5346):2126-30.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Plant Molecular Biology, Rockefeller University, 1230 York Avenue, New York, NY 10021-6399, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9405349" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/*pharmacology ; Adenosine Diphosphate Ribose/*analogs & derivatives/metabolism/pharmacology ; Arabidopsis/genetics/metabolism ; Arabidopsis Proteins ; Calcium/*metabolism/pharmacology ; Cyclic ADP-Ribose ; Egtazic Acid/pharmacology ; GTP-Binding Proteins/physiology ; Gene Expression Regulation, Plant/drug effects ; Genes, Reporter ; Inositol Phosphates/pharmacology ; Lycopersicon esculentum/genetics/metabolism ; Microinjections ; Phosphoprotein Phosphatases/metabolism ; Phosphorylation ; Phytochrome/pharmacology ; Phytochrome A ; Plants/genetics/*metabolism ; Plants, Genetically Modified ; Protein Kinases/metabolism ; *Second Messenger Systems ; *Signal Transduction
    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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  • 3
    Electronic Resource
    Electronic Resource
    Cycloöctadienes from Dienes (1948)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 70 (1948), S. 2303-2305 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01187a001
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  • 4
    Electronic Resource
    Electronic Resource
    Preparation of Zein by Precipitation Method (1945)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 37 (1945), S. 175-177 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50422a015
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  • 5
    Electronic Resource
    Electronic Resource
    Polymerization of Drying Oils (1949)
    s.l. : American Chemical Society
    Industrial & engineering chemistry 41 (1949), S. 1647-1653 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie50476a031
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  • 6
    Electronic Resource
    Electronic Resource
    Soldering with light! (1995)
    Bradford : Emerald
    Assembly automation 15 (1995), S. 17-19 
    Details
    ISSN: 0144-5154
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: With the ever-decreasing size of electronic components, examinesthe use of laser soldering, particularly of fine-pitch, high valuedevices. Discusses the advantages and disadvantages of using lasers and theapplications to which they are suited. Looks at the different types of lasersand how their different wavelength of operation affects the solderingprocess. Describes an experimental laser soldering station and its ability tosolder circuit boards. Concludes that modern electronic component packagingtechnology is demanding new techniques for the interconnection of devices,and that the application of lasers to the traditional technique of solderingwill enable this tested process to be applicable to the very fine pitchdevices now being introduced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/01445159510146978
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  • 7
    Electronic Resource
    Electronic Resource
    The application of semiconductor diode lasers to the soldering of electronic components (1995)
    Springer
    Optical and quantum electronics 27 (1995), S. 1303-1311 
    Details
    ISSN: 1572-817X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Notes: Abstract Work being carried out at the University of Hull into the application of high power laser diodes to the soldering process is described. The commercial availability of semiconductor diode lasers has brought an exciting new soldering tool to the manufacturers of electronics assemblies: trends in electronics assembly are to increasingly high-density interconnections and increasing device functionality. Packages are reducing in size and pin-out counts are increasing. Currently 0.010–0.016 inch lead pitch devices are being introduced by many manufacturers. Lasers can be used with advantage in the soldering of such fine and precise devices and high-power semiconductor laser diodes can be used to build compact, flexible and controllable soldering units. With computer control of the power and duration of the laser energy it is possible to ensure consistent and reliable soldering. To achieve this, however, the various parameters involved in the laser beam-solder assembly interaction need to be carefully defined. This paper reports on our identification of these parameters and the salient design features of an automated diode laser soldering system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00326483
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  • 8
    Electronic Resource
    Electronic Resource
    Development of a water-effect ratio for copper, cadmium, and lead for the Great Works River in Maine using Ceriodaphnia dubia and Salvelinus fontinalis (1995)
    Springer
    Bulletin of environmental contamination and toxicology 54 (1995), S. 29-35 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00196266
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  • 9
    Electronic Resource
    Electronic Resource
    Thresholds for masking responses to light in three strains of retinally degenerate mice (1999)
    Springer
    Journal of comparative physiology 184 (1999), S. 423-428 
    Details
    ISSN: 1432-1351
    Keywords: Key words Locomotor activity ; Masking ; Retinal degeneration ; Rhythms ; Vision
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Mutant mice with retinal degeneration (rd/rd) were given 1-h pulses of light of varying brightness at times of the night when they would normally be active. The mutant mice showed a significantly greater inhibition of locomotor activity to light (negative masking) than wildtype controls. Lack of impairment, or even enhancement of negative masking suggests that this response may depend on sparing in retinally degenerate mice of the same receptor type that mediates clock resetting, because synchronization of the circadian system is known to be unimpaired in these mutants. With very dim light pulses, mutants did not change their activity, but wildtypes actually became more active (positive masking). Positive and negative masking appear to depend on different sensory and central processes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003590050341
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  • 10
    Electronic Resource
    Electronic Resource
    The communicative meaning of body oscillations in the social wasp, Polistes fuscatus (Hymenoptera, Vespidae) (1998)
    Springer
    Insectes sociaux 45 (1998), S. 215-230 
    Details
    ISSN: 1420-9098
    Keywords: Key words:Polistes, oscillatory behavior, adult-larval communication.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary: The oscillatory behavior of paper wasps, Polistes fuscatus, was examined in field observations (401.9 h) of 37 preworker (pre-emergence), multiple-foundress colonies. Additional field observations were conducted on 16 multiple-foundress colonies (96 h) both before and after worker emergence, and on 10 preworker colonies (40 h) before and after eggs had hatched into larvae. In addition, we observed 18 preworker, multiple-foundress colonies: six undisturbed controls (12 h), six larvae removed (12 h), and six larvae removed and replaced (12 h). Finally, we analysed video and audio sequences of oscillatory behaviors (lateral vibrations).¶ Higher ranked foundresses performed lateral vibrations (LVs) at a significantly greater rate than lower ranked foundresses. However, there was no significant association between rates of LVs and (1) aggression or (2) magnitude of differences in dominance indices among cofoundresses. There was also no significant temporal association between LVs and departures or returns. Lateral vibrations were commonly performed by foundresses that were alone on the nest. These results and others indicate that LVs do not function in adult-adult communication. ¶Lateral vibrations were significantly, temporally associated with high activity level, primarily cell inspection. Lateral vibrations were significantly, positively correlated with abdominal wagging and antennal drumming, both of which have been implicated in adult-larval communication. Foundresses of colonies containing eggs only (compared to colonies containing eggs and larvae) rarely displayed LVs. Removal of larvae significantly reduced the rates of LVs and the replacement of removed larvae caused a marked increase in the rates of LVs. Video analyses revealed that larvae retracted their head capsules in response to an LV. All of these data indicate that LVs involve adult-larval communication via substrate vibrations. Some indirect evidence suggests that LVs signal larvae to stop secreting saliva to adult wasps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s000400050082
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