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  • 1
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An experimental setup is described, which is used to multi-ionize neutral clusters and to study their stability and the importance of different decay processes. Clusters are ionized in collisions with slow multiply charged ions (projectile charge z ranging from 1 to 30, kinetic energies ranging from 1 to 20 keV/charge). Both ion and cluster beamlines, as well as the characteristics of the analysis and detection systems, are described. Collisions with highly charged ions such as Ar8+ or Xe30+ turn out to be efficient tools in preparing clusters in high charge states without increasing significantly their internal temperature. Measurements performed in coincidence with the number of electrons stabilized by the projectile ion after the collision allowed us to control the charge and the excitation energy of the ionized system. The efficiency of the method is demonstrated for sodium clusters and C60 molecules. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 13 (1983), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Allergy skin testing of infants and small children continues to be time-consuming and nerve-wracking. We hoped to have found the solution to these problems by using the multi-test (MT). The latter consists of an applicator with 8 heads, each head consisting of nine plastic needles on which the allergen solution rests. Thus eight allergens can be tested simultaneously. During routine control skin testing we compared MT with our usual method, the prick test (PT), amongst twenty patients. Twenty-seven percent of the skin reactions differed by more than 1 +. When we compared PT results with the previous PT, the correlation of 16% was better despite several years interval between tests, different persons carrying out the tests, and hyposensitization of patients. We adapted the MT system and produced a model, multi-test 2 (MT-2), which consists of eight sterile disposable needles on a stainless steel base. When we compared the MT-2 with PT, only 6% differed by more than 1 +. Thus the MT-2 proves to be a useful alternative to the PT for those children, in whom the PT is too difficult to carry out.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical & experimental allergy 11 (1981), S. 0 
    ISSN: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The simplified oscillation method was adapted to register nasal resistance because complicated and difficult procedures limited other known rhinomanometric tests. An initial study of thirty-nine subjects compared the effect of different-sized masks, revealing that the smaller the face mask, the smaller the capacitance and the higher the effective resistance. After an initial measurement, a second study group of twenty healthy and twenty pollinosis patients aged from 4 to 40 years underwent nasal provocation with grass pollen extract. Both study groups showed that despite high resistance, reactances were minor. This occurs because the nose acts as an aperture and an aperture has minimal reactances. With increasing concentrations of pollen extract, the nasal resistance of pollinosis subjects increased steadily, whereas the controls showed no change. Passive anterior rhinomanometry was measured for comparison and results contrasted sharply with the oscillation method: prior to provocation, initial values of control and pollinosis groups were already significantly different; after provocation, there was a statistically significant rise in resistance amongst the control as well as the pollinosis subjects. Further, the oscillation method for measuring nasal resistance proved to be simple, effective, and suitable for children.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 317 (1984), S. 139-143 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Single electron capture processes in Ne2+/Ar, Kr collisions were studied by aid of the high-resolution translational spectroscopy. At low collision energies (〈1 keV) the dominant contribution to the Ne+-spectrum arises from Ne2+ ions in the metastable1 S 0-state, although it is the weakest component of the primary Ne2+ beam. Ne2+(3 P) and Ne2+*(1 D) projectiles play no important role due to unfavourable energy defects. Target excitation processes as well as transfer ionisation are considered as a possible explanation for different structures in the measured Ne+ spectra.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Der Orthopäde 28 (1999), S. 441-450 
    ISSN: 1433-0431
    Keywords: Key words Pediatric spine • Thoracolumbar spine injury • Physeal plate injury ; Schlüsselwörter Kindliche Wirbelsäule • Thorakolumbale Wirbelsäulenverletzung • Wachstumsfugenverletzung
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Verletzungen der thorakalen und lumbalen Wirbelsäule sind bei Kindern sehr selten und unterscheiden sich in Hinblick auf Pathomorphologie, Heilverlauf und Prognose wesentlich von denen der Erwachsenen. Vor dem Wachstumsabschluß kommt den Wirbelkörperepiphysen pathomorphologisch und prognostisch eine besondere Bedeutung zu, so daß die individuelle, altersabhängige Wachstums- und Korrekturpotenz stets im therapeutischen Algorithmus mit berücksichtigt werden muß. Es werden die anatomischen und pathomorphologischen Besonderheiten der kindlichen Wirbelsäule aufgezeigt, prognostisch und therapeutisch bekannte Aspekte aus der Literatur dargestellt und mit dem eigenen Krankengut von 40 klinischen Fällen diskutiert. Bei unseren Patienten fanden sich überwiegend Kompressionsverletzungen (85 %), gefolgt von Distraktions- und Rotationsverletzungen (15 %). Neurologische Begleitverletzungen lagen in 12,5 % vor. Die Wirbelbrüche wurden durchweg konservativ, die Segmentzerreißungen operativ behandelt; 26 Patienten konnten nach durchschnittlich 8 Jahren klinisch, 21 auch radiologisch nachuntersucht werden: Der größte Teil der Patienten war vollständig beschwerdefrei; radiologisch konnten die Verletzungen zumeist nicht mehr nachgewiesen werden. Wirbelbrüche bei Kindern bis zum 12. Lebensjahr haben, soweit keine neurologischen Komplikationen vorliegen, eine sehr gute Prognose.
    Notes: Summary Traumatic injuries of the thoracic and lumbar spine are rare in children and differ in pathomorphology, healing process and prognosis from those in adults. Before growth arrest the vertebral epiphysis has an important role in pathomorphology and prognosis; therefore, treatment should recognize the age-dependent potential for growth and remodelling. This study demonstrates the different anatomic and pathomorphologic characteristics of traumatic spinal injuries in 40 children. Additionally, prognosis and the various forms of treatment are discussed in the context of the recent literature. In total we observed 85 % compression-type injuries and 15 % distraction- and rotation-type injuries. Vertebral body fractures were treated conservatively and segmental disruptions by fusion. Long-term follow-up was performed on average 8 years after the accident in 26 patients clinically and in 21 patients radiologically. Most patients had no physical complaints or clinical symptoms. Additionally, the radiographs did not demonstrate any post-traumatic defects. In summary, spinal injuries up to the age of 12 without initial neurologic symptoms have a favorable prognosis.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Inflammation research 2 (1972), S. 189-192 
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The respiration of anaesthetized pigeons, suffocated to death by tracheal occlusion, is followed by means of the intratracheal pressure tracing. A special procedure allows to distinguish expiratory from inspiratory efforts. The overall expiratory effort about equals the inspiratory one. During the agony, however, the release of expiratory energies increases whereas inspiratory activity is vanishing more and more. On the basis of the period of agony, a screening procedure is developed to search for substances which would selectively influence the release of expiratory or inspiratory energies respectively.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 103 (1968), S. 277-284 
    ISSN: 1432-1076
    Keywords: Meningokokkenmeningitis ; Meningokokkensepsis ; Defektzustände
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wurden 200 Kinder im Alter von 2–171/2 Jahren nach einer in den Jahren 1955–1966 abgelaufenen Meningokokkenmeningitis und-sepsis eingehend nachuntersucht. Die Probanden wurden einer ausführlichen klinisch-neurologischen Untersuchung, einer Elektrencephalographie, Echoencephalographie und einem Kramer-Intelligenztest unterzogen. Dabei fanden sich bei 39,5% restlose Heilungen, bei 35% leichte und bei 19,5% schwerere Restschäden. Mit zunehmendem Alter der Kinder verringerten sich die schweren Spätschäden. Die restlichen 6% ließen nicht ausschließen, daß der zentral-nervöse Schaden nicht schon vor der Meningitis bestand bzw. nur eine Verschlimmerung durch die Erkrankung erfuhr. Da es sich um Nachuntersuchungen bei Überlebenden aus zum Teil entfernten Gegenden handelt, liegen keine Zahlen über die Letalität in dieser Zeit vor.
    Notes: Summary 200 children of 2 to 171/2 years of age who have had a meningococcal meningitis or -sepsis in 1955–1966 have been reexamined. The patients were submitted to an extensive neurological examination with electroencephalography and echoencephalography and a Kramer-intelligencetest. 39,5% of the patients were found to be completely cured, 35% had mild, 19,5% had severe residual damage. With increasing age of the children the severe damage lessened. In 6% of the patients a preexistent cerebral damage which was aggravated by the meningitis could not be ruled out. Letality numbers during this time could not be established as the surviving patients came out of distant areas.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European journal of forest research 85 (1966), S. 129-134 
    ISSN: 1612-4677
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    European journal of forest research 86 (1967), S. 314-320 
    ISSN: 1612-4677
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    European journal of forest research 86 (1967), S. 384-384 
    ISSN: 1612-4677
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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