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  • 1
    Electronic Resource
    Electronic Resource
    Genetic Variation for Anther Callus Inducibility in Crosses of Highly Culturable Winter Wheats (1992)
    Oxford, UK : Blackwell Publishing Ltd
    Plant breeding 108 (1992), S. 0 
    Details
    ISSN: 1439-0523
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Heritability studies suggest that variation among genotypes for callus inducibility should respond to selection. The objective of this study was to determine if crosses among parents with high callus initiation frequencies would produce segregation from which genotypes with improved callus inducibility could be selected. The winter wheat (Triticum aestivum L.) cultivars‘Centurk 78’, ‘Norstar’ and ‘Norwin’ were chosen as parents, based on their high callus initiation frequencies and diverse parentage. F2 populations from crosses between each of these parents were evaluated for callus initiation frequencies and callus vigor as determined by growth rate and healthy appearance. Heterosis was detected for callus initiation in the‘Norwin’בNorstar’ cross and for callus vigor in all crosses. Broad sense heritability estimates of 0.25 and 0.37 for callus initiation in the ‘Centurk 78’בNorstar’ and ‘Norwin’בNorstar’ crosses, respectively, suggest this trait can be improved by selection. Heritability estimates for callus vigor were less promising, ranging from 0.11 to 0.24.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1439-0523.1992.tb00095.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Epidural placement in a patient with undiagnosed acquired haemophilia from factor VIII inhibitor (1999)
    Oxford : Blackwell Science Ltd
    Anaesthesia 54 (1999), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We report a case of acquired haemophilia that presented as continuous bleeding from an epidural insertion site in a previously asymptomatic parturient. Peripartum anaesthetic management of this rare medical emergency has not previously been reported and the difficulties associated with its treatment are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2044.1999.00840.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Organometallic rearrangements. I. Kinetics of the thermal isomerization of trimethylsilylindene. System of two consecutive reversible first-order reactions (1972)
    s.l. : American Chemical Society
    Inorganic chemistry 11 (1972), S. 2136-2141 
    Details
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ic50115a029
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    CT differentiation of large abdominal lymphangioma from ascites (1993)
    Springer
    Pediatric radiology 23 (1993), S. 129-130 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Abdominal lymphangiomas are uncommon benign tumors, usually presenting in early childhood as a palpable abdominal mass5. Their sonographic and CT appearance has been well described, and usually consists of well-defined, thin-walled cysts which can be unilocular, or multiloculated, and may contain septations. Rarely, these cysts may be large enough to be confused with ascites on physical exam. We present such a case to emphasize the imaging features that may help in the differentiation between ascites and large mesenteric lymphangiomas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012405
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Commentary: Emergency department sonography in the initial evaluation of blunt abdominal injury in children (1993)
    Springer
    Pediatric radiology 23 (1993), S. 161-163 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02013820
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  • 6
    Electronic Resource
    Electronic Resource
    Significance of periportal low-attenuation zones following blunt trauma in children (1993)
    Springer
    Pediatric radiology 23 (1993), S. 388-390 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The CT scans of 400 consecutive children evaluated with CT following blunt abdominal trauma were evaluated to determine the frequency of periportal lowattenuation zones, assess patterns of associated intraabdominal injury, and examine clinical outcome. Periportal low-attenuation zones were noted in 60 children (15%). The presence of these zones was associated with a significantly higher incidence of intraabdominal injury (60% versus 11%,p=0.0001). Injuries most frequently associated with zones of periportal low-attenuation included hepatic (n=23,38%), and adrenal (n=14,23%). Children who had periportal low-attenuation zones tended to be more physiologically unstable as evidenced by a lower Trauma Score (diffuse, 11.9; focal, 13.4) than children without the zones (15.1,p=0.0001). The presence of these zones was also associated with a significantly higher mortality rate (13% versus 1%,p=0.0001). Ten children who had periportal low-attenuation zones and no hepatic injury on CT had a normal appearing liver on gross inspection at surgery or autopsy. In conclusion, periportal lowattenuation zones are common in children who have hepatic injury. These zones may be seen in conjunction with non-hepatic visceral injury or in the absence of intraabdominal injury. The presence of zones of periportal lowattenuation is associated with a higher index of physiologic instability, and higher mortality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02011968
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  • 7
    Electronic Resource
    Electronic Resource
    MRI evaluation of superficial soft tissue lesions in children (1993)
    Springer
    Pediatric radiology 23 (1993), S. 425-428 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The role of MRI in the evaluation of superficial soft tissue lesions in children has not been well established. We present our experience with MRI in the evaluation of nineteen children with a variety of cutaneous and subcutaneous lesions. We find MRI to have a definite role in the evaluation of these lesions particularly when determining extent or depth of involvement would affect medical or surgical management. MRI has a less well defined role in tissue determination. Spin echo T1 and T2 weighted images were sufficient for evaluation in most cases. Fat suppression images added additional information in fatty tumors. The MRI appearance of juvenile hyaline fibromatosis and lipoblastomatosis has not been previously described and is included in this study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012439
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Pulmonary arteriovenous malformation: An uncommon cause for cyanosis in the newborn (1983)
    Springer
    Pediatric radiology 13 (1983), S. 339-341 
    Details
    ISSN: 1432-1998
    Keywords: Arteriovenous malformation ; Newborn ; Lung cyanosis ; Heart failure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Pulmonary arteriovenous malformation is an uncommon cause of cyanosis and heart failure in newborns. A case is presented with review of the literature in order to emphasize its clinical and radiographic features.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01625962
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  • 9
    Electronic Resource
    Electronic Resource
    Alterations in regional cerebral blood flow in neonatal stroke: preliminary findings with color Doppler sonography (1994)
    Springer
    Pediatric radiology 24 (1994), S. 111-115 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Little information is available regarding alterations in regional cerebral blood flow and vascularity on cranial sonography in infants with focal ischemic brain injury. This study describes the use of color Doppler sonography in the characterization of these changes following acute neonatal stroke. Color Doppler examinations were performed as part of the series of clinically indicated cranial sonograms in eight infants with clinical, sonographic, and CT evidence of acute cerebral infarction. The cerebral vascularity of each hemisphere was assessed for symmetry and for presence of abnormal blood vessels. Initial Doppler study in four infants with hypoxic-ischemic infarcts showed increased size and number of visible vessels in the periphery of the infarct and increased mean blood flow velocity in vessels supplying or draining the infarcted areas. Diminished vessel number and size and frequency shifts suggestive of decreased hemispheric perfusion was identified in one infant with middle cerebral artery insufficiency. Repeat Doppler studies were performed on two infants. These showed the development of multiple small, irregular blood vessels in the periphery of the infarct. Focal abnormalities in regional cerebral blood flow may be present as part of the normal healing process following neonatal stroke, and can be demonstrated with color Doppler sonography.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02020166
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Regional cerebral blood flow estimates in newborn lamb using amplitude-mode color Doppler ultrasound (1996)
    Springer
    Pediatric radiology 26 (1996), S. 282-286 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Purpose. To establish the feasibility of determining changes in regional cerebral blood flow using amplitude-mode color Doppler ultrasound in the newborn lamb.Methods. Regional cerebral blood flow was modified by intrastriatal injection ofN-methyl-D-aspartic acid (NMDA) in two newborn lambs and compared with that in a control animal receiving only intrastriatal saline. Serial color Doppler ultrasound energy images were obtained in coronal projection at the level of the foramen of Monro, before and at 20, 40, and 60 min after NMDA or saline injection using a 7.0-MHz linear transducer. Real-time images were obtained and transferred onto a computer workstation. Regions of interest were drawn over each striatum and cerebral hemisphere and were analyzed for mean pixel intensity (MPI) at each interval. Paired regional cerebral blood flow (r-CBF) determinations (radiolabeled microsphere technique) were also obtained in every animal. MPI and r-CBF for each anatomic region were compared using linear regression.Results. Mean color pixel intensities increased significantly in the ipsilateral basal ganglia and cerebral hemisphere (p 〈 0.0001) in both animals injected with NMDA, but not in the animal injected with normal saline (p 〈 0.63). A strong and significant linear correlation was found between MPI and r-CBF for striatum (r = 0.89,p 〈 0.0001) and cerebral hemisphere (r = 0.85,p 〈 0.0001).Conclusions. Amplitude-mode color Doppler ultrasound shows potential for technically simple determination of serial changes in regional cerebral blood flow in infants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01372114
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