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  • 1985-1989  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    World journal of surgery 9 (1985), S. 794-797 
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Trente-deux observations d'accidentés présentant des lésions intestinales dues au port de la ceinture de sécurité sont rapportées. Elles se classent en trois groupes en fonction de la nature et du mécanisme des lésions. Le groupe I concerne 4 accidentés qui présentaient une section complète du jéjunum proximal provoquée par la décélération. Des lésions associées comprenaient la rupture de la rate, la perforation du colon transverse et de l'angle splénique. Le groupe II répond à 6 blessés qui présentaient un infarcissement iléal provoqué par l'écrasement. Les lésions associées répondaient à des déchirures du coecum, de l'aorte et de la veine cave inférieure. Le groupe III intéresse 22 accidentés qui présentaient des perforations du jéjunum et de l'iléon par brusque distension due elle-même à la force de la contusion, ce type de lésions par rupture ne s'accompagnant pas de lésion spécifique associée.
    Abstract: Resumen Se revisaron treinta y dos casos de lesiones del yeyuno y del íleon por cinturones de seguridad (automotrices). Los pacientes fueron clasificados en tres grupos de acuerdo a la naturaleza y mecanismo de la lesión. El grupo I consistió de 4 pacientes con transección completa del yeyuno proximal causada por fuerzas de desaceleración. Como lesiones frecuentemente asociadas aparecieron la ruptura del bazo y la perforación del colon transverso y del ángulo esplénico. El grupo II consistió de 6 pacientes con infarto del íleon causado por fuerzas de machacamiento. Como lesiones asociadas se encontraron desgarros del ciego, de la aorta y de la vena cava inferior. El grupo III consistió de 22 pacientes con perforación por estallido del yeyuno y del íleon. Estas lesiones son causadas por fuerzas transmitidas a partir de la pared anterior del abdomen, los cuales causan una elevación repentina en la presión intraluminal del intestino delgado. No se encontraron lesiones específicas asociadas en este grupo de pacientes. La mortalidad por lesiones del intestino delgado causadas por trauma abdominal cerrado ha sido principalmente atribuida a diagnóstico tardío. Los síntomas iniciales pueden ser mínimos. El neumoperitoneo puede aparecer radiográficamente sólo en el 50% de los casos; la determinación de la amilasa sérica generalmente ha demostrado ser poco confiable. En nuestra serie la mortalidad reflejómás bien la presencia de lesiones asociadas que diagnóstico tardío. Creemos que el examen e historia clínicos cuidadosos y un buen conocimiento de los mecanismos de lesión del intestino delgado pueden alertar al cirujano para lograr un diagnóstico correcto en la mayoría de los casos.
    Notes: Abstract Thirty-two patients with seat belt-induced injuries to the jejunum and ileum are reviewed. These patients are classified into 3 groups according to the nature and mechanism of injury. Group I consists of 4 patients with complete transection of the proximal jejunum caused by deceleration forces. Injuries commonly associated include spleen rupture and perforation of the transverse colon and splenic flexure. Group II consists of 6 patients with infarcted ileum caused by crushing forces. Associated injuries include tears to the cecum, aorta, and inferior vena cava. Group III consists of 22 patients with “blowout” perforations of the jejunum and ileum. These injuries are caused by transmitted forces. There are no associated specific injuries related to this group.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-2665
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-6052
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Neutrino and antineutrino total charged current cross sections on iron were measured in the 100, 160, and 200 GeV narrow band beams at the CERN SPS in the energy range 10 to 200 GeV. Assuming σ/E to be constant, the values corrected for non-isoscalarity are σv/E = (0.686 ± 0.019) * 10−38 cm2/ (GeV · nucleon) and σv/E = (0.339 ± 0.010) * 10−38 cm2/ (GeV·nucleon). Between 50 and 150 GeV no energy dependence of σ/E was observed within ±3% for neutrino and ±4% for antineutrino interactions.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The Gamma Ray Observatory (GRO) is currently planned for a launch from the space shuttle in 1990. After the long hiatus in high-energy gamma-ray astronomy since the end of the COS-B mission in 1982, the Soviet missions Granat and Gamma-1 and the NASA mission GRO will resume observations in the energy range from below 100 keV and extending to above 10 GeV. GRO will carry four instruments designed to cover this range of over five decades in photon energy. It is planned to perform a complete sky survey above 1 MeV in the first year of the GRO mission. Data from this survey will be used to study galactic and extragalactic sources of gamma radiation as well as the galactic and extragalactic diffuse emissions. Additionally, measurements of gamma ray bursts will be performed. The angular and spectral resolution of the GRO instruments is significantly improved with respect to previous experiments. The sensitivity for point sources will be better by an order of magnitude, and the location of strong, high energy sources will be determined to about 0.1°–0.2°. After a brief description of the complement of GRO instruments, a detailed discussion of the high-energy telescope EGRET, its design and scientific objectives, is presented in this review.
    Type of Medium: Electronic Resource
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