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  • 1
    Digitale Medien
    Digitale Medien
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 73 (1998), S. 2703-2705 
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Laterally gain-coupled distributed feedback GaInAsP/InP lasers were fabricated by focused ion-beam implantation and rapid thermal annealing of ridge waveguide structures. An absorption grating, which interacts with the evanescent light field, is formed by a periodic reduction of the band-gap absorption in the passive sections along the ridge. Room-temperature single-mode emission was observed at 1.5 μm with a 30 dB side-mode suppression ratio. Simultaneously, the increase of the band gap in the implanted section results in improved carrier confinement, which reduces the leakage current and improves the laser performance in comparison to unimplanted ridge waveguide lasers. © 1998 American Institute of Physics.
    Materialart: Digitale Medien
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  • 2
    Digitale Medien
    Digitale Medien
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 75 (1999), S. 1491-1493 
    ISSN: 1077-3118
    Quelle: AIP Digital Archive
    Thema: Physik
    Notizen: Complex coupled GaInAsP/InP distributed feedback lasers were developed based on maskless focused ion beam lithography. By combining implantation enhanced wet chemical etching and implantation induced thermal quantum well intermixing a refractive index grating was defined self-aligned to a gain grating forming a complex coupled grating lateral to a ridge waveguide. The devices show single mode emission at wavelengths around 1.55 μm with linewidths 〈2 MHz and side mode suppression ratios of more than 40 dB for continuous wave operation at room temperature. A high single mode yield (〉90%) over a large tuning range (88 nm) was achieved. © 1999 American Institute of Physics.
    Materialart: Digitale Medien
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  • 3
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Dialectica 1 (1947), S. 0 
    ISSN: 1746-8361
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Philosophie
    Materialart: Digitale Medien
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  • 4
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Anatomia, histologia, embryologia 27 (1998), S. 0 
    ISSN: 1439-0264
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: The thyroid glands of 31 chickens at the age of 17 to 24 months were investigated. Different methods of anatomical preparation, casts of vessels and scanning electron microscopy were used. The thyroid gland of birds is a paired organ. It is located on the ventral surface of the base of the neck within the thoracic inlet. The left thyroid gland is placed more cranially than the right one. Each thyroid gland is closely connected to the common carotid artery on the medial side, from which it is supplied and to the jugular vein on the lateral side. It is a reddish-brown organ and of lenticular profile. The gland measures on average 10 mm in length, 6 mm in width and 2 mm in thickness, and is covered by a thin connective tissue capsule which holds adipose cells. It seems that each thyroid follicle is surrounded by a net of capillaries. The investigation by scanning electron microscopy proved that the follicles are oval with a pyramidal top on each end. The cuboidal epithelium cells leave impressions in the colloid. Epithelium cells carry microvilli on the follicle side surface. Described seasonal changes of the thyroid gland in size and activity were able to be confirmed by the examination of the organ in July and December. In winter the follicular cells were higher and the follicles had a greater volume.
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Rechtsmedizin 9 (1999), S. 65-69 
    ISSN: 1434-5196
    Schlagwort(e): Key words Maltreatment ; Exorcism ; Torture ; Schlüsselwörter Mißhandlung ; Exorzismus ; Folter
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Rechtswissenschaft
    Beschreibung / Inhaltsverzeichnis: Zusammenfassung Eine 66-jährige Frau verstarb nach mehrzeitigen, massiven Schlägen mit einem Teppichklopfer aus Rohrgeflecht und einem Elektrokabel an den Folgen des inneren Blutverlustes sowie einer Lungenfettembolie. Als Ergebnis der ersten Obduktion wurde zunächst ein natürlicher Tod diagnostiziert. Die Nachsektion der exhumierten Leiche und intensive kriminalistische Ermittlungen führten zur Aufdeckung langjähriger, exorzistisch motivierter Mißhandlungen des angeblich vom Satan besessenen Opfers durch ein Schwesternpaar. Die Täterinnen und ihr Opfer gehörten derselben pseudoreligiösen Sekte an. Die ältere der beiden Schwestern war bereits einmal wegen tödlicher, exorzistischer Mißhandlungen eines 17jährigen Mädchens rechtskräftig verurteilt worden.
    Notizen: Abstract A 66-year-old woman died of internal bleeding and pulmonary fat embolism following repeated massive blows from a wickerwork carpetbeater and an electric cable. The initial autopsy diagnosis was natural death. A second autospy on the exhumed body and an intensive criminal investigation revealed a long history of maltreatment by two sisters with whom the victim lived. The maltreatment occurred during exorcisms with the purported purpose of ridding the victim of her possession by Satan. The perpetrators and the victim belonged to the same pseudoreligous sect. The elder of the two sisters had been previously convicted of a fatal exorcism maltreatment of a 17-year-old girl.
    Materialart: Digitale Medien
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Cellular and molecular life sciences 1 (1945), S. 26-26 
    ISSN: 1420-9071
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Naturwissenschaften 83 (1996), S. 272-275 
    ISSN: 1432-1904
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Naturwissenschaften 83 (1996), S. 272-275 
    ISSN: 1432-1904
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie , Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Mathematische Annalen 312 (1998), S. 773-783 
    ISSN: 1432-1807
    Schlagwort(e): Mathematics Subject Classification (1991): 46B07, 47B10, 52A20
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Mathematik
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    International journal of legal medicine 112 (1999), S. 261-267 
    ISSN: 1437-1596
    Schlagwort(e): Key words Axonal injury ; Midbrain ; Biomechanics ; Specificity ; Diffuse axonal injury
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin , Rechtswissenschaft
    Notizen: Abstract Experimental studies have shown that diffuse axonal injury is usually induced by positive or negative acceleration mechanisms. In order to determine the reliability of axonal injury (AI) as a marker of this type of traumatic insult, we compared cases of trauma-induced focal cortical hemorrhage without dural involvement (n = 67) with cases of trauma-induced subdural bleeding without cortical hemorrhage (n = 26). Both groups exhibited a wide range of post-traumatic survival times. The injuries in the first group were caused mainly by direct impact to the head, those in the second by acceleration/deceleration mechanisms. The investigations were based primarily on immunohistochemical demonstration of antibodies targeted to β-amyloid precursor protein (β-APP) in the pons as a marker of AI and the results were assessed semiquantitatively. No significant differences were found between the two groups. In both groups AI was detected in 80–100% of cases with survival times of more than 3 h and two thirds of all positive cases showed pronounced positivity. Additional comparison of cases of brain death due to mechanical trauma (n = 14) with cases of brain death due to non-mechanical trauma (n = 18) also disclosed no significant intergroup differences. Finally, investigations of the pons in cases of non-traumatic death due to cerebral hypoxia/ischemia (n = 51) demonstrated AI with the same frequency as in the other groups, although the expression tended to be less pronounced. Our results confirm that β-APP expression in the pons is a reliable indicator of AI but does not discriminate between injuries caused by traumatic strain or shearing mechanisms and secondary damage due to cerebral hypoxia/ ischemia or edema. In the large majority of cases with prolonged post-traumatic survival, it can therefore be assumed that AI in the pons is the consequence of primary and/or secondary events or a combination of both, as is common in non-missile head injury survived for more than 90–120 min. Therefore, positive differentiation of the type of biomechanical event based on this criterion alone is not possible.
    Materialart: Digitale Medien
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