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  • 1
    Digitale Medien
    Digitale Medien
    Engineering of the magnetic properties of strained quantum dots (1998)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 73 (1998), S. 3944-3946 
    Details
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Exchange interactions between the holes confined in arrays of strained quantum dots subject to compressive and tensile strain are shown to lead to ferrimagnetic arrangement of magnetic moments. Using example of strained In1−xGaxAs quantum dots on InP substrate, it is shown how magnetic properties of a semiconductor material can be engineered without resorting to doping with magnetic ions, and the Curie temperature is estimated to be of the order of 25 K. Potential applications in information storage and processing are considered. © 1998 American Institute of Physics.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1063/1.122944
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  • 2
    Digitale Medien
    Digitale Medien
    Active antireflection coating electrooptic modulator (1993)
    Springer
    Optical and quantum electronics 25 (1993), S. S917 
    Details
    ISSN: 1572-817X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik
    Notizen: Abstract A new type of multiple quantum well (MQW) reflection modulator, based on the multilayer active antireflection coating (A-ARC) is proposed and compared theoretically with the conventional MQW modulator based on the asymmetric Fabry-Perot etalon (AFP). It is shown that both a large on-off ratio and a low operating voltage can be achieved. It will be demonstrated that the A-ARC device matches the performance of the recently reported asymmetric Fabry-Perot modulator while requiring smaller device thickness. It will also be shown that A-ARC MQW modulators exhibit superior tolerance to the unavoidable thickness variations, thus allowing fabrication of large-area uniform arrays of modulators.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00430334
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  • 3
    Digitale Medien
    Digitale Medien
    Nosocomial neonatal septic arthritis (1996)
    Springer
    European journal of pediatrics 155 (1996), S. 102-105 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Septic arthritis ; Neonate ; Nosocomial
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Between August 1993 and August 1994, 17 cases of neonatal septic arthritis occurred at the intensive care baby unit of Princess Badia' Teaching Hospital in Northern Jordan.Klebsiella species was the causative pathogen in 10 patients (59%), which indicates a nosocomial acquired infection. The hip was the main joint involved in 94% of cases. An epidemiological survey showed that the spread ofKlebsiella occurred via contaminated covered sheets of both delivery and resuscitation tables. Control measures resulted in a decrease in cross contamination and a dramatic slowing of the outbreak. The clinical features, risk factors, outcome and bacteriology are also discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02075760
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  • 4
    Digitale Medien
    Digitale Medien
    Nosocomial neonatal septic arthritis (1996)
    Springer
    European journal of pediatrics 155 (1996), S. 102-105 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Key words Septic arthritis ; Neonate ; Nosocomial
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Between August 1993 and August 1994, 17 cases of neonatal septic arthritis occurred at the intensive care baby unit of Princess Badia' Teaching Hospital in Northern Jordan. Klebsiella species was the causative pathogen in 10 patients (59%), which indicates a nosocomial acquired infection. The hip was the main joint involved in 94% of cases. An epidemiological survey showed that the spread of Klebsiella occurred via contaminated covered sheets of both delivery and resuscitation tables. Control measures resulted in a decrease in cross contamination and a dramatic slowing of the outbreak. The clinical features, risk factors, outcome and bacteriology are also discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004310050384
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  • 5
    Digitale Medien
    Digitale Medien
    Lack of effectiveness of dexamethasone in neonatal bacterial meningitis (1999)
    Springer
    European journal of pediatrics 158 (1999), S. 230-233 
    Details
    ISSN: 1432-1076
    Schlagwort(e): Key words Dexamethasone ; Neonate ; Bacterial meningitis
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract A clinical trial was conducted to determine whether dexamethasone as adjunctive therapy alters the outcome of bacterial meningitis in neonates. Fifty-two full-term neonates with bacterial meningitis were enrolled in a prospective study. Infants were alternately assigned to receive either dexamethasone or not. Twenty-seven received dexamethasone in addition to standard antibiotic treatment and 25 received antibiotics alone. Dexamethasone therapy was started 10–15 min before the first dose of antibiotics in a dose of 0.15 mg/kg per 6 h for 4 days. Baseline characteristics, clinical and laboratory features in the two groups were virtually similar. Both groups showed a similar clinical response and similar frequency of mortality and sequelae. Six (22%) babies in the treatment group died compared to 7 (28%) in the control group (P = 0.87). At follow up examinations up to the age of 2 years, 6 (30%) of dexamethasone recipients and 7 (39%) of the control group had mild or moderate/severe neurological sequelae. Audiological sequelae were seen in two neonates in the dexamethasone group compared to one in the control group. Conclusion Adjunctive dexamethasone therapy does not improve the outcome of neonatal bacterial meningitis.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004310051056
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  • 6
    Digitale Medien
    Digitale Medien
    Retrospective study of outcome on vaginal and abdominal delivery in twin pregnancy in which twin 1 is presenting by the breech (1998)
    Springer
    Archives of gynecology and obstetrics 261 (1998), S. 71-73 
    Details
    ISSN: 1432-0711
    Schlagwort(e): Key words: Breech ; Caesarean section ; First twin ; Vaginal delivery
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract. We retrospectively reviewed the perinatal outcome of twin pregnancies cohere the first baby was presenting by the breech. 21 were delivered vaginally and 37 abdominally. Differences in perinatal outcome, as measured by Apgar score and mortality, were not apparently different.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s004040050201
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