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  • Dependence  (3)
  • Aphididae  (1)
  • Ganglion cyst  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Influence of temperature and daylength on population development ofAphis gossypii onCucurbita pepo (1993)
    Springer
    Entomologia experimentalis et applicata 67 (1993), S. 167-172 
    Details
    ISSN: 1570-7458
    Keywords: Insecta ; Aphididae ; intrinsic rate of increase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The life table parameters ofAphis gossypii Glover were evaluated in tow sets of experiments onCucurbita pepo. The first set was conducted at six constant temperatures (5°C increments from 10–35°C) with 12 h photophase. The second set of experiments was conducted at 6, 12, and 18 h photophase at 25°C. Nymphal survivorship was 100% at 15, 20, 25 and 30°C. However, it was 80 and 0% at 10 and 35°C, respectively. The optimum temperature for body length was 10°C, and body length decreased with increasing temperature.A. gossypii attained its optimum growth and reproduction at 25°C. At this temperature, the net reproductive rate (79.7), intrinsic rate of increase (0.496) and finite rate of increase (1.6) were largest while generation time (6.6 d) and population doubling time (1.4 d) were smallest. Temperatures above and below 25°C reduced the net reproductive rate, and the intrinsic and finite rates of increase. The intrinsic and finite rates of increase ofA. gossypii reared at 18 h photophase (0.53 and 1.7) were significantly higher than at 12 (0.43 and 1.5) and 6 h daylength (0.49 and 1.6).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02386522
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    L5 radicular pain related to a cystic lesion of the posterior longitudinal ligament (2000)
    Springer
    European radiology 10 (2000), S. 1812-1814 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Lumbar spine ; Ganglion cyst ; Posterior longitudinal ligament ; Radiculopathy ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A 35-year-old man with a long history of left L5 radicular pain was found to have an intraspinal cystic lesion causing radicular compression. Magnetic resonance imaging demonstrated a round lesion situated in the anterior epidural space, with uniform high signal intensity on T2-weighted sequences characteristic of a cystic lesion. During surgery a liquid-containing cyst originating from the posterior longitudinal ligament was punctured and resected. The histologic aspect was that of a ganglion cyst without synovial layers. The radiologic differential diagnoses are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300000445
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Concentration-ingestion relations of morphine-adulterated food and morphine solution (1973)
    Springer
    Psychopharmacology 30 (1973), S. 45-60 
    Details
    ISSN: 1432-2072
    Keywords: Morphine ; Preference ; Dependence ; Morphine Eating ; Morphine Drinking
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Four groups (n=16/group) of rats were given ad libitum access to morphine-adulterated food in one of four different concentrations (1, 2, 3, or 4 mg morphine HCl/g milled food). Half of the subjects in each group were given ad libitum water while the other half were provided with sucrose morphine (1 mg morphine HCl/ml 10% sucrose). Daily measures of body weight, food, liquid, caloric, and morphine intake were recorded for each animal. All eight treatment regimens were effective in inducing physical dependence on morphine as shown by: a) a preference for the morphinized food (1 and 2 mg/g groups) or, b) observable withdrawal signs in rats which failed to maintain their daily morphine intake (3 and 4 mg/g groups) in a subsequent choice test between plain food and morphine-adulterated food at the respective concentration. Caloric intake for all groups was similar to a non-drugged control group. It is concluded that opiate dependence can be achieved by adulterating both the food and liquid regimen of the rat with morphine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00422793
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Opiate dependence produced by ad libitum drinking of morphine in water, saline, and sucrose vehicles (1973)
    Springer
    Psychopharmacology 30 (1973), S. 291-302 
    Details
    ISSN: 1432-2072
    Keywords: Morphine ; Dependence ; Water ; Saline ; Sucrose ; Preference Test ; Ingestion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Rats were given ad libitum morphine water, saline morphine, or sucrose morphine as their only source of liquid. Measures of liquid, food, caloric, and morphine intake along with body weight were taken daily, thereby monitoring the effects of morphine ingestion on these indices, and observing the course of dependence over time. To assess the degree of dependence the animals were given a two-bottle choice test between the drug solution and the vehicle, following a suitable ingestion period. The results indicated that the rats neglected morphine water and saline morphine in favor of the drug-free alternative. Concomitant morphine withdrawal signs (body weight loss, anorexia, adipsia, rhinorrhea, diarrhea, and irritability) were observed, thus indicating the animals were drug dependent. When morphine was given in sucrose solutions, the rats showed a marked preference for the drug solution over the vehicle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429188
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  • 5
    Electronic Resource
    Electronic Resource
    Morphine dependence in rats produced after five days of ingestion (1973)
    Springer
    Psychopharmacology 28 (1973), S. 51-62 
    Details
    ISSN: 1432-2072
    Keywords: Morphine ; Dependence ; Nalorphine ; Rats
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In the first experiment dose-dependent withdrawal signs following a nalorphine injection (either 2, 4, 8, 16, or 32 mg/kg, i.p.) were seen in rats that had been drinking sucrose morphine for 21 days. A non-dependent control group was generally unaffected by an injection of the antagonist (16 mg/kg, i.p.). In Experiment II, morphine withdrawal signs, both nalorphine induced and without nalorphine injection, were observed in rats which had been placed on only five days of morphine-adulterated food and sucrose morphine. Although both groups showed clear withdrawal signs after the drug was removed from their diet, the nalorphine-injected group showed more severe symptoms. By the eleventh day of withdrawal all rats had resumed normal eating and drinking and had nearly recovered their pre-drug body weights. It is concluded that reliable morphine dependence can be induced in five days, using a morphine-adulterated diet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00413957
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    Paper (German National Licenses)
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