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  • 1
    Electronic Resource
    Electronic Resource
    Temperature and Light Requirements for the Sprouting of Chilled and Unchilled Tubers of the Purple Nutsedge, Cyperus rotundus (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 44 (1978), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Mature and immature tubers of purple nutsedge (Cyperus rotundus L.) chilled at 0°C in dry and wet conditions, were sprouted along with fresh, unchilled tubers over a range of temperatures (10°C-45°C) in light and darkness. Fresh immature tubers showed a high sprouting percentage at all temperatures between 20°C and 40°C, while the mature ones did so only at 30°C and 35°C. Chilling of dry tubers stimulated early sprouting and increased the maximum sprouting percentage of both the mature and immature tubers. Dry chilling also lowered the limit of favourable temperatures to 15°C in the case of mature tubers. Chilling of wet tubers had a depressing effect and no sprouting occurred below 30°C.At all temperatures, light apparently favoured the sprouting of both the mature and immature tubers (except mature wet-chilled ones at 35°C and 40°C). Immature tubers showed relatively higher sprouting percentage than the mature ones, both in light and darkness. Alteration of temperature requirements due to dry and wet chilling of the tubers is regarded as significant and functional in relation to the ecology of the species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1978.tb08617.x
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  • 2
    Electronic Resource
    Electronic Resource
    Sprouting and Growth of Purple Nutsedge, Cyperus rotundus, in Relation to pH and Aeration (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 44 (1978), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The results of experiments on the sprouting and growth of purple nutsedge (Cyperus rotundus L.) in relation to pH and aeration are described. All pH levels between 2.2 to 9.0 allowed high sprouting percentage but the sprouted tubers did not survive at pH below 3 and survival beyond pH 7 was very poor. Post-sprouting growth of nutsedge was optimal at pH 4.Pre-sprouting aeration of tubers stimulated early sprouting and produced vigorous shoots, whereas submersion of the tubers was inhibitory. Continuous aeration of the submerged tubers substantially removed the inhibitory influence on sprouting but the shoots remained weak. Seedlings grown in constantly aerated nutrient solution showed significantly better growth than in a non-aerated one.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1978.tb01640.x
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  • 3
    Electronic Resource
    Electronic Resource
    Plain film diagnosis in meconium plug syndrome, meconium ileus and neonatal Hirschsprung's disease (1991)
    Springer
    Pediatric radiology 21 (1991), S. 556-559 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Abdominal plain films of 133 neonates, with 82 cases of meconium plug syndrome (MPS), 27 cases of meconium ileus (MI) and 24 cases of neonatal Hirschsprung's disease (HD), were reviewed to assess the value of such radiographs for diagnosis. The radiographs were examined according to a list of 11 parameters. By using multivariate discriminant analysis, it appeared that 4 parameters i.e. dilatation of bowel loops, varying loop calibre, fluid levels and colonic gas were most important in discriminating among the three disorders. For each parameter the weight (in points) was derived. To classify patients, three group-scores had to be calculated: the group-score with the largest value indicated the most likely disorder. So in 99%, 88% and 63% of MPS, HD and MI, respectively, an accurate diagnosis could be predicted. The overall diagnostic accuracy was 89%. Such a diagnosis can be a sound basis for further investigation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012596
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  • 4
    Electronic Resource
    Electronic Resource
    Clinical and MR imaging features of cryptoglandular and Crohn's fistulas and abscesses (2000)
    Springer
    Abdominal imaging 25 (2000), S. 67-74 
    Details
    ISSN: 1432-0509
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/s002619910014
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  • 5
    Electronic Resource
    Electronic Resource
    MR imaging of the anorectal region: intraluminal, extraluminal,que sera? (1999)
    Springer
    Abdominal imaging 24 (1999), S. 582-584 
    Details
    ISSN: 1432-0509
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900568
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  • 6
    Electronic Resource
    Electronic Resource
    MR imaging features of pelvic mucinous carcinomas (2000)
    Springer
    European radiology 10 (2000), S. 885-891 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Mucinous adenocarcinoma – Rectal – Neoplasms – Mucinous cystadenoma – MR imaging – Ovarian neoplasms – Urachal neoplasms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Mucinous carcinomas in the pelvis differ from non-mucinous tumors because of the differences in clinical outcome and imaging appearance. Mucinous rectal carcinomas, for example, are known to be higher in stage at the time of the diagnosis because they are more likely to be infiltrative and show a greater tendency for recurrence. These factors may lead to a poorer prognosis in patients with the mucinous as compared with non-mucinous carcinomas. Mucinous carcinomas of all types typically show high signal intensity on T2-weighted MR images, and therefore mimic other conditions such as necrotic tumors, fluid collections, cysts, or liver hemangiomas. To familiarize readers with the MRI appearance, and to avoid pitfalls, this paper illustrates the MRI features of the mucinous adenocarcinomas in various pelvic organs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300051029
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  • 7
    Electronic Resource
    Electronic Resource
    Record of a clupeoid fish nematalosa nasus without an anal fin (1979)
    Springer
    Hydrobiologia 63 (1979), S. 185-188 
    Details
    ISSN: 1573-5117
    Keywords: Clupeoid fish ; Nematalosa nasus ; morphological abnormality ; anal fin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract This paper records the catch of Nematalosa nasus without an anal fin, from Karachi. The specimen is a mature male of 165.5 mm in total length. Comparison of the abnormal specimen with a normal Nematalosa nasus, shows considerable changes in the muscles of the anal fin region, posterior part of the axial skeleton, the course of the intestine and especially the extent and shape of the body cavity. Comments are also made to account for such an abnormality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00030082
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  • 8
    Electronic Resource
    Electronic Resource
    Reactions with β-ketodianilides. I. New synthesis of Pyrido[3,4-c]pyridine Derivatives (1989)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 331 (1989), S. 745-750 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Acetonedicarboxylic acid dianiline reacted with malononitrile, ethyl cyanoacetate or benzoylacetonitrile to give (6-amino-5-cyano-1,2-dihydro-2-oxo-1-phenylpyrid-4-yl)-acetanilide (3), (3-cyano-2,6-dioxo-1-phenyl-1,2,5,6-tetrahydropyrid-4-yl)acetanilide (8) or (3-cyano-1,6-dihydro-1,2-diphenyl-6-oxopyrid-4-yl)acetanilide (9). Compounds 3 and 8 could be cyclised into 8-amino-1,6-diphenyl-1,2,4,5,6,7-hexahydro-7-iminopyrido[3,4-c]pyridine-2,5-dione (4) and 7-amino-1,2,3,5,6,8-hexahydro-1,6-diphenylpyrido[3,4-c]pyridine-2,5,8-trione (10) respectively by heating their solutions in dimethylformamide in the presence of triethylamine. Each of 3 and 4 coupled with arenediazonium chlorides to give the corresponding arylhydrazone derivatives (5a-d) and (6a-c), respectively. Condensation of 4 with p-nitrosodimethylaniline yielded 8-amino-4- (p-dimethylaminophenylimino)-1,6-diphenyl-1,2,4,5,6,7-hexahydro-7-iminopyrido[3,4-c]pyridine2,5-dione (7).
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19893310507
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  • 9
    Electronic Resource
    Electronic Resource
    Reactions with monothiomalonamides: Synthesis of Polysubstituted Thiazoles (1988)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 330 (1988), S. 521-529 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Monothiomalonamides (1a, b) coupled with arenediazonium salts yield the α-arylhydrazone derivatives (2a - c), Reaction of 1a, b with α-haloketones afforded polysubstituted thiazoles 6a - c. Compounds 6 condensed with p-nitrosodimethylaniline and coupled with arenediazonium salts yield the azomethine derivatives 7a - d and the arylhydrazones 8a - h, respectively.Compounds 1a, b behave differently towards hydrazonyl chlorides, they yielded arylazodimethylthiazoles 13a - c and thiazolylacetanilides 12a - c respectively.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19883300405
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