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  • 1
    Electronic Resource
    Electronic Resource
    Kinetics of the reactions of hydroxyl radicals with aldehydes studied under atmospheric conditions (1981)
    s.l. : American Chemical Society
    Environmental science & technology 15 (1981), S. 960-963 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es00090a012
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  • 2
    Electronic Resource
    Electronic Resource
    Isomerization of Alkoxy Radicals under Atmospheric Conditions (1995)
    s.l. : American Chemical Society
    Environmental science & technology 29 (1995), S. 232-241 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es00001a600
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  • 3
    Electronic Resource
    Electronic Resource
    The Photolysis of Azo-n-propane; the Decomposition of the n-Propyl Radical (1961)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 83 (1961), S. 3391-3396 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja01477a009
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  • 4
    Electronic Resource
    Electronic Resource
    Bond Dissociation Energies by Kinetic Methods (1966)
    s.l. : American Chemical Society
    Chemical reviews 66 (1966), S. 465-500 
    Details
    ISSN: 1520-6890
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/cr60243a001
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  • 5
    Electronic Resource
    Electronic Resource
    The regenerative capacity of testicular interstitial tissue (1987)
    Springer
    Development genes and evolution 196 (1987), S. 467-471 
    Details
    ISSN: 1432-041X
    Keywords: Leydig cells ; Ethane dimethanesulphonate ; Destruction ; Regenerative capacity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A single intraperitoneal injection of ethane dimethanesulphonate (EDS) destroys all Leydig cells in the adult rat testis but 1–2 weeks later new foetal-type Leydig cells begin to regenerate within the interstitial tissue. A further EDS treatment at 4 weeks failed to kill the new population of foetal-type Leydig cells. Between 10–20 weeks, the new Leydig cells exhibited the characteristics of adult-type Leydig cells. These cells responded to another EDS treatment by exhibiting a second phase of complete degeneration followed by regeneration of a foetal-type and subsequently an adult-type cell population. The results indicate that the testis retains the ability to replenish its supply of Leydig cells despite successive phases of total degradation of Leydig cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00399148
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  • 6
    Electronic Resource
    Electronic Resource
    Short-time period fluctuations in the total ozone (1973)
    Springer
    Pure and applied geophysics 106-108 (1973), S. 977-980 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract The Toronto spectrophotometer was used to take an extensive series of ozone measurements for the period September 1971 to April 1972. As a result of these measurements it was found that short-lived variations of ozone occur which sometimes amount to more than 0.1 cm. These ‘ozone disturbances’ are advected because the same disturbance has been observed on the direct sun and the zenith sky at different times. Results which show the general nature of these disturbances will be presented. Also, a discussion will be given which stresses the need for an automated, mesoscale ozone-measuring network, capable of measuring in all weather conditions during all daytime hours.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00881050
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  • 7
    Electronic Resource
    Electronic Resource
    Total ozone measurements in cloudy weather (1973)
    Springer
    Pure and applied geophysics 106-108 (1973), S. 928-937 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Obtaining an accurate, value for total ozone under a cloudy sky, especially when the sun is not high, is a major remaining problem associated with total ozone measurements. The Toronto spectrophotometer has been designed with this in mind. It has been fitted with a polarizing prism, and measures light at four wavelengths simultaneous which makes it possible to obtain two independent double ratios. Clouds produce two effects on ozone measurements; the first is purely an optical effect which causes an apparent increase in ozone, the second is most likely a real increase in ozone associated with large cumulus-type clouds. By considering the three following points it is possible to distinguish between these two cloud effects and probably measure the true total ozone for solar zenith angles less than 80°: 1. The multiply scattered component of polarized light is used to reduce optical cloud variance. This makes all skies appear like thick coulds. 2. A double difference similar to the AD method is used but the two ratios of the double difference are weighted inversely with
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00881043
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  • 8
    Electronic Resource
    Electronic Resource
    Ultrastructure and possible function of giant crystalloids in the Sertoli cell of the juvenile and adult koala (Phascolarctos cinereus) (1987)
    Springer
    Anatomy and embryology 176 (1987), S. 213-224 
    Details
    ISSN: 1432-0568
    Keywords: Koala testis ; Sertoli cell ; Crystalloids ; Spermatogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Sertoli cells of the juvenile and adult koala testis exhibit a unique morphology due to their large nuclei and in particular, a remarkable abundance of large cytoplasmic crystalloid inclusions. Numerous crystalloid subunits in immature Sertoli cells are aggregated into distinct clusters where by assembly and union, they form large slender crystalloids consisting of an ordered substructure of filaments and tubules. Adult Sertoli cells contain large numbers of basally-positioned crystalloids up to 60 μm in length and the observations suggest a possible mechanism for their growth from collections of tubules assembled together within membrane-bound inclusions. The trunk and adluminal cytoplasm of the adult Sertoli cell also contains crystalloids, usually single, positioned between germ cells or their excess residual cytoplasm. Following sperm release, crystalloids are not shed from the seminiferous epithelium but are retained within the apical Sertoli cell cytoplasm. Although their subsequent fate could not be determined crystalloids did not show evidence of breakdown or phagocytosis by the Sertoli cell, suggesting that they may be reutilized and possibly function to stabilize the association between Sertoli cell cytoplasm and the developing germ cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00310054
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  • 9
    Electronic Resource
    Electronic Resource
    Biomasses, catch rates and abundances of demersal fishes, particularly predators of prawns, in a tropical bay in the Gulf of Carpentaria, Australia (1990)
    Springer
    Marine biology 107 (1990), S. 397-408 
    Details
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The demersal fish fauna of Albatross Bay, in the eastern Gulf of Carpentaria, northern Australia, was sampled on seven cruises from August 1986 to November 1988, using a random stratified trawl survey. Four depth zones between 7 and 45 m were sampled during both day and night. The mean biomass of fish from all seven cruises was 297 kg ha−1 for days trawls and 128 kg ha−1 for night trawls. The overall mean catch rates were 922 kg h−1 for day trawls and 412 kg h−1 for night trawls. There were marked differences between cruises in both the biomass and catch rate. Approx 890 000 fish of 237 species were collected. Of these, 25 species comprised 82% of the total biomass and 74% of the overall catch rate. The dominant families were Leiognathidae, Haemulidae and Clupeidae, with Sciaenidae and Dasyatidae important at night.Leiognathus bindus was the most abundant species. Twenty-five species occurred in more than 50% of trawls, withCaranx bucculentus the most frequently caught (96% of all trawls). Thirty four species were predators on prawns; their absolute mean biomass was 50 kg ha−1 during the day and 39 kg ha−1 at night. The corresponding catch rates were 171 and 125 kg h−1. Multiple-regression analyses were used to discriminate the effects of diel, seasonal, depth and cruise patterns. Of the 31 most abundant species, 15 showed diel patterns of abundance; 11 species showed seasonal patterns of abundance; 23 species had differential depth distribution; and 13 species showed significant cruise-to-cruise variation in abundance. Cruise variations in abundance were tested against salinity, temperature, tidal exchange, plankton biomass and prawn abundances as well as periods (and lags) of total rainfall prior to sampling. Only total rainfall showed any significant correlation. Total rainfall over a period of 6 wk immediately prior to sampling showed significant positive correlations with the abundances of five species, with overall daytime catch rates, and with the suite of 34 prawn predators. Rainfall and river runoff into Albatross Bay were significantly correlated. In Albatross Bay, the complex of factors affecting fish abundances and the magnitude of between-cruise differences indicate that such tropical communities may be unpredictable and are not seasonally constant. The high catch rates in Albatross Bay relative to similar tropical areas elsewhere are discussed and attributed to the light exploitation of the Albatross Bay stocks. Other than a prawn fishery, there is no commercial trawling in Albatross Bay. Hence, the only fishing mortality is a result of by-catch from prawn trawling. The annual total of such fish by-catch is probably less than 10% of the estimated standing stock of 93 000 tonnes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01313421
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  • 10
    Electronic Resource
    Electronic Resource
    The psychomotor and cognitive effects of a new antihistamine, mizolastine, compared to terfenadine, triprolidine and placebo in healthy volunteers (1994)
    Springer
    European journal of clinical pharmacology 47 (1994), S. 331-335 
    Details
    ISSN: 1432-1041
    Keywords: Mizolastine ; Triprolidine ; Terfenadine ; antihistamines ; psychomotor performance ; cognitive function ; psychopharmacology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Eighteen healthy volunteers received mizolastine 5 mg, 15 mg or 45 mg, terfenadine 60 mg, triprolidine 10 mg or placebo in a 6-way crossover, double blind study. Following each dose, subjects performed a series of tests of cognitive function and psychomotor performance at 1, 3, 5, 8 and 24 hours post-dose. The test battery included critical flicker fusion, choice reaction time, tracking, Stroop and Sternberg memory tests and assessment of subjective sedation. Sedative effects and a concomitant reduction in psychomotor and cognitive function were observed following triprolidine, terfenadine and the highest dose of mizolastine, 45 mg, e.g. triprolidine reduced CFF threshold by 1.5 Hz and increased reaction time by 50 ms, impairments comparable to those caused by blood alcohol concentrations of 50 mg%, the legal limit in many countries. Mizolastine 5 mg did not differ significantly from placebo and at 15 mg differed only at one test point at one time. It may be concluded that mizolastine (5 mg and 15 mg) is free from disruptive effects on cognitive function and psychomotor performance, in contrast to terfenadine 60 mg, triprolidine 10 mg and mizolastine 45 mg.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00191164
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