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  • 1
    Electronic Resource
    Electronic Resource
    The effect of oxytocin infusion on uterine activity levels in slow labour (1985)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 92 (1985), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. Uterine activity was studied in 31 women who were progressing slowly in spontaneous labour. In 75%, levels of uterine activity were below the tenth centile for normal spontaneous labour (mean uterine activity integral, UAI, 593 kPas/15 min; SD 296). Following oxytocin infusion, there was a significant increase in uterine activity to a mean of 1124 kPas/15 min (SD 276), which was t h e same as in normal spontaneous labour. The response t o oxytocin was dependent upon the pre-existing level of uterine activity, and sensitivity to oxytocin, rather than the dose rate; 84% responded t o infusion rates of 〈 8 mU/min. The response t o oxytocin was best expressed in terms of active contraction area (uterine activity integral, UAI) or Montevideo units, rather than the frequency or active pressure of contractions. The rate of cervical dilatation following oxytocin augmentation could not be predicted either by t h e increase in uterine activity or by the actual level of activity achieved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1985.tb03022.x
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  • 2
    Electronic Resource
    Electronic Resource
    Normal levels of active contraction area in spontaneous labour (1984)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 91 (1984), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. A detailed study has been made of uterine activity in a group of 21 unselected women in spontaneous labour. Measurements were made of contraction frequency, active pressure, Montevideo units and active contraction area. The level of Montevideo units were comparable with -values previously reported in spontaneous labour. Active contraction area correlated better than any of the other measures with the rate of cervical dilatation in the active phase of labour (r= 0.69). The mean contractionarea was 1099 (SD 333) kPas/15 min.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1984.tb04755.x
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  • 3
    Electronic Resource
    Electronic Resource
    THE USE OF CATHETER-TIP PRESSURE TRANSDUCERS FOR THE MEASUREMENT OF INTRAUTERINE PRESSURE IN LABOUR (1978)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 85 (1978), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The disadvantages of the fluid filled polythene catheter used for measuring intrauterine pressure have been overcome by designing a catheter with a pressure transducer at the tip. The information which it gives is accurate and reliable. The optimum method of use has been determined and clinical trials performed. There is no demonstrable morbidity from its use.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1978.tb14920.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    A multicentre prospective randomized controlled trial of induction of labour with an automatic closed-loop feedback controlled oxytocin infusion system (1985)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 92 (1985), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary. A randomized prospective controlled trial of an automatic feed-back controlled oxytocin infusion system (AIS) for the induction of labour at term was carried out in three hospitals. In primiparae, a four-fold reduction in the total dose of oxytocin infused, for the same induction-delivery interval, was achieved with the AIS compared with standard labour ward protocols relying on midwife control of oxytocin infusion rate. In multiparae, the total dose of oxytocin infused was almost halved when the AIS was used, while the mean duration of labour was increased by 1.6 h to 7.5 h. There were no differences in the mode of delivery or Apgar scores. It is concluded that the AIS is a safe technique for induction of labour. Its use has demonstrated that term labour can be induced efficiently with a mean oxytocin infusion rate between 2–5 and 3 mU/min (max 8.8 mU/min) and a total oxytocin dose infused of 〈 5 U.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1985.tb03023.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    FETAL HEART RATE MONITORING USING THE ABDOMINAL FETAL ELECTROCARDIOGRAM (1980)
    Oxford, UK : Blackwell Publishing Ltd
    BJOG 87 (1980), S. 0 
    Details
    ISSN: 1471-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: An evaluation of a prototype abdominal fetal electrocardiogram (ECG) module for use in a Sonicaid FM3R monitor is described; 103 antenatal recordings of fetal heart rate (FHR) were attempted in 56 patients between 21 and 43 weeks gestation. The overall success rate was 54 per cent but the proportion of successful recordings was reduced between 24 and 36 weeks gestation. Most successful recordings were obtained with the first electrode placings and the quality of the recordings was generally higher than those obtained by simultaneously recorded FHR from ultrasound. Monitoring using the abdominal ECG during parturition was found to be unreliable. The advantages of the method are that it is non-invasive, the patient is not restricted by belts and the technique is easy to apply. However the uncertainty of obtaining a FHR trace between 24 and 36 weeks gestation is a major disadvantage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1471-0528.1980.tb04567.x
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  • 6
    Electronic Resource
    Electronic Resource
    Plant structure and the searching efficiency of coccinellid larvae (1984)
    Springer
    Oecologia 63 (1984), S. 394-397 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary | 1. To determine the effect of plant structure on the searching efficiency of Coccinella septempunctata L. larvae, their functional response on pea and bean plants was compared. 2. The attack coefficient a was lower on pea than on bean plants. 3. This was not due to a difference in the coincidence of prey distribution and predator searching effort, but was due to larvae falling off the smooth leaves of pea plants significantly more frequently than off bean plants. 4. It was concluded that plant structure is an important factor in determining the quality of a habitat for coccinellids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00390671
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    An NRD-fed dielectric rod antenna for the short millimeter wave band (1989)
    Springer
    International journal of infrared and millimeter waves 10 (1989), S. 1327-1337 
    Details
    ISSN: 1572-9559
    Keywords: Dielectric Antenna ; NRD guide ; polar diagram ; Millimeter Wave
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A simple E-plane tapered rectangular dielectric rod fed by NRD guide is used as a millimeter wave antenna. This class of aerial features attractive radiation patterns with relatively low sidelobes and moderate gain. The measured results show that such an antenna and mounting structure can be exploited as effective radiating element in the short millimeter wave frequency band.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01009257
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  • 8
    Electronic Resource
    Electronic Resource
    Foraging behaviour of Coccinellid larvae: duration of intensive search (1984)
    Springer
    Entomologia experimentalis et applicata 36 (1984), S. 133-136 
    Details
    ISSN: 1570-7458
    Keywords: Intensive searching behaviour ; coccinellid larvae ; search rate ; unsuccessful prey encounter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé On a déterminé au laboratoire la durée du comportement intensif de prospection du 3è stade larvaire deCoccinella septempuncatata après un repas, et le comportement de prospection du 4è stade après rencontre infructueuse avec une proie. La durée de la recherche intensive pendant le 3è stade, après privation d'aliment pendant 20 h, était de 28,8 sec. Bien que l'aire parcourue par unité de temps pour ce stade ait été inférieure à la moitié de celles parcourues par des larves de 4è stade et des adultes, les durées de recherches intensives étaient voisines. Le comportement de recherche intensive a été provoqué même après une rencontre infructueuse avec une proie, et il durait autant qu'après une rencontre fructueuse. Ce comportement est particulièrement important pour les stades précoces dont l'efficacité de capture est faible, puisqu'une rencontre infructueuse est l'indication qu'un groupe de proies a été découvert. La recherche intensive succédant à un échec accroît les probabilités de localisation ultérieure de proies et ainsi augmente les probabilités de capture.
    Notes: Abstract The duration of intensive searching behaviour of third-instar larvae ofCoccinella septempunctata L. following feeding, and the searching behaviour of fourth instar larvae following an unsuccessful prey encounter, was determined. Even though the speed of search and track width of third instar larvae is less than that of fourth instar larvae and adults, their intensive searching behaviour was found to be of similar duration. Intensive searching behaviour was elicited even after an unsuccessful prey encounter, an important strategy for early instar larvae whose capture efficiency is low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00569953
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