Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Isolation and characterization of an aluminum-sensitive mutant of Pseudomonas fluorescens (1997)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 152 (1997), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: An aluminum-sensitive mutant was isolated by chemical mutagenesis using 1-methyl-3-nitro-1-nitrosoguanidine. Although this mutant of Pseudomonas fluorescens was susceptible to aluminum, it did respond in a manner analogous to the wild-type when challenged with either Ca2+, or Ga3+ or Zn2+. However, the aluminum-sensitive mutant did not grow in media with iron. Calcium detoxification appeared to be attained by the elaboration of calcite, a detoxification strategy observed in the wild-type Pseudomonas fluorescens. There was a 40% diminution in biomass when the mutant was cultured in a control medium as compared to the wild-type. The aluminum-sensitive mutant had a characteristic yellow coloration. Electrophoretic analyses of the soluble cellular extract revealed numerous variations between the aluminum-sensitive mutant and wild-type Pseudomonas fluorescens. Bands corresponding to approximate molecular masses of 158 kDa, 116 kDa, 97 kDa, 55 kDa, and 19 kDa were absent in the aluminum-sensitive mutant. Furthermore, bands attributable to molecular masses of 90 kDa and 15 kDa were only evident in the aluminum-sensitive Pseudomonas. It appears that the chemical mutagenesis may have affected only aluminum and iron(III) metabolism in this organism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1997.tb10441.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Incidence of small-bowel obstruction and adhesiolysis after open colorectal and general surgery (1999)
    Springer
    Diseases of the colon & rectum 42 (1999), S. 241-248 
    Details
    ISSN: 1530-0358
    Keywords: Adhesions ; Complications ; Small-bowel obstruction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract PURPOSE: The study contained herein was undertaken to establish the incidence of small-bowel obstruction, adhesiolysis for obstruction, and additional abdominal surgery after open colorectal and general surgery. METHODS: A retrospective cohort study was performed using patient-specific Health Care Financing Administration data to evaluate a random 5 percent sample of all Medicare patients who underwent surgery in 1993. Of these, 18,912 patients had an index abdominal procedure. Two-year follow-up data documented outcomes of hospitalizations with obstruction, adhesiolysis for obstruction, and/or additional open colorectal or general surgery. RESULTS: Within two years of incision, excision, and anastomosis of intestine (International Classification of Diseases (ICD)-9 code 45), 14.3 percent of patients had obstructions, 2.6 percent required adhesiolysis for obstructions, and 12.9 percent underwent additional open colorectal or general surgery. After other operations of intestine (ICD code 46), 17 percent of patients had obstructions, 3.1 percent required adhesiolysis for obstructions, and 20.2 percent underwent additional open colorectal or general surgery. After operations of rectum, rectosigmoid, and perirectal tissue (ICD code 48), 15.3 percent of patients had obstructions, 5.1 percent required adhesiolysis for obstructions, and 16.4 percent underwent additional open colorectal or general surgery. After other operations on the abdominal region (ICD code 54), 12.4 percent of patients had obstructions, 2.3 percent required adhesiolysis for obstructions, and 8.8 percent underwent additional open colorectal or general surgery. CONCLUSIONS: In this retrospective study of Medicare patients, we learned that bowel obstruction, adhesiolysis for obstructions, and additional abdominal surgery occurred more often after abdominal surgery than was previously published.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02237135
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    ERMded– eine Erweiterung des Entity-Relationship-Modells zur Modellierung deduktiver Informationssysteme (1995)
    Springer
    Informatik, Forschung und Entwicklung 10 (1995), S. 128-138 
    Details
    ISSN: 0949-2925
    Keywords: Schlüsselwörter: Konzeptionelle Datenmodellierung ; deduktive Systeme ; ableitbare Daten ; Entity-Relationship-Modell ; Key words: Conceptual Data Modeling ; deductive systems ; derivable data ; Entity-Relationship Model
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Abstract. Today traditional information systems and deductive systems are modeled and implemented separately. Most users, however, demand integrated systems which meet their everyday information needs and have deductive capabilities as well. The well-known Entity-Relationship approach to conceptual data modeling is extended to cover modeling of such systems. In addition, a classification of derivable data is given which allows the analyst to decide which derivable data should be included in the conceptual schema.
    Notes: Zusammenfassung. Traditionelle und deduktive Informationssysteme werden heute immer noch isoliert voneinander modelliert und implementiert. Für die meisten Benutzer sind jedoch Systeme wichtig, die ihren alltäglichen Informationsbedarf decken und darüber hinaus deduktive Fähigkeiten besitzen. Der bekannte Entity-Relationship-Ansatz zur konzeptionellen Datenmodellierung wird in dieser Arbeit so erweitert, daß damit solche integrierten Systeme modelliert werden können. Außerdem wird eine Klassifizierung ableitbarer Daten eingeführt, die dem Analytiker Hilfestellung bei der Frage gibt, welche ableitbaren Daten bei der Modellierung berücksichtigt werden sollen und welche nicht.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004500050018
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Auf der Suche nach Verkettungen in Entity-Relationship-Schemata (1997)
    Springer
    Informatik, Forschung und Entwicklung 12 (1997), S. 117-127 
    Details
    ISSN: 0949-2925
    Keywords: Schlüsselwörter: Konzeptuelle Datenmodellierung ; Entity-Relationship-Modell ; ableitbare Daten ; Verkettung ; restriktionsbezogene Suche ; Key words: Data modeling ; Entity-Relationship model ; derivable data ; composition ; constraint-driven checking ; CR Subject Classification: H.2.1 ; H.2.2 ; H.2.3 ; H.3.3
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Abstract. Redundant components in Entity-Relationship schemata result in waste of storage space and errors in the use of the databases gained from them. There is a strong connection between schema redundancy and the concept of derivable components as redundant components are always derivable. On the other hand, not every derivable component is a redundant one. First the relationship between redundant and derivable components is discussed and a classification is introduced which allows the designer to separate superfluous components from others. Afterwards, an important class of derivable components, composition of relationship sets, is presented in its various forms. In addition, methods are suggested which might help to detect compositions.
    Notes: Zusammenfassung. Redundante Komponenten in Entity-Relationship-Schemata führen zu Speicherverschwendung und Fehlern bei der Nutzung der aus dem Schema gewonnenen Datenbanken. Zwischen Schemaredundanz und dem Konzept der ableitbaren Komponenten besteht eine enge Verbindung, denn redundante Schemakomponenten sind stets ableitbar. Andererseits ist nicht jede ableitbare Komponente auch redundant. Es wird deshalb zunächst das Verhältnis zwischen redundanten und ableitbaren Komponenten diskutiert und eine Klassifizierung eingeführt, welche die Modellierer befähigt, entbehrliche von nicht entbehrlichen Komponenten zu unterscheiden. Eine spezielle Art ableitbarer Komponenten, die Verkettung von Beziehungsarten, wird anschließend mit allen ihren Erscheinungsformen vorgestellt. Außerdem werden Methoden diskutiert, die helfen können, Verkettungen aufzudecken.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004500050080
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Kasabach-Merritt-Syndrom bei sinusoidaler Hämangiomatose der Milz (1998)
    Springer
    Monatsschrift Kinderheilkunde 146 (1998), S. 665-668 
    Details
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Sinusoidale Hämangiomatose ; Milz ; Kasabach-Merritt-Syndrom ; Key words Sinusoidal hemangiomatosis ; Spleen ; Kasabach-Merritt syndrome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary We report on a 13-month-old girl who developed Kasabach-Merritt syndrome because of sinusoidal hemangiomatosis of the spleen. The combination of consumption coagulopathy and tumor of the spleen suggested a vascular process. Discussion: For a tumor of the spleen, sinusoidal hemangiomatosis has to be considered as differential diagnosis. Splenectomy is the treatment of choice when consumption coagulopathy occurs.
    Notes: Zusammenfassung Berichtet wird über eine 13 Monate alte Patientin, bei der sich aufgrund einer sinusoidalen Hämangiomatose ein Kasabach-Merritt-Syndrom entwickelte. Die Kombination von Gerinnungsstörung und Milztumor legte bereits den Verdacht auf einen vaskulären Prozeß nahe. Diskussion: Obwohl äußerst selten, muß die sinusoidale Hämangiomatose im Kindesalter in die Differentialdiagnose der Milztumoren mit eingeschlossen werden. Im Fall einer assoziierten Gerinnungsstörung ist die Splenektomie die Therapie der Wahl.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001120050307
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Delayed appearance of bilateral Morgagni herniae in a child with Down's syndrome (1998)
    Springer
    Pediatric surgery international 13 (1998), S. 600-601 
    Details
    ISSN: 1437-9813
    Keywords: Key words Diaphragmatic hernia ; Morgagni hernia ; Down's syndrome ; Ultrasonography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This case report describes the delayed presentation of bilateral Morgagni herniae in a 4 1/2-year-old boy with Down's syndrome. The authors emphasize the difficulties in establishing the diagnosis, although ultrasonography appears to be valu‐able. A review of the literature suggests an association between Morgagni hernias and trisomy 21.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003830050414
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    The effect of CO adsorption on the resistivity of thin Pd films (1995)
    Springer
    Applied physics 61 (1995), S. 587-590 
    Details
    ISSN: 1432-0630
    Keywords: 73.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Thin Pd films of 5–50nm thickness are deposited on glass substrates under UHV conditions and are subsequently covered step by step with CO at 77 or 293 K. The resistivity increases linearly with the number of adsorbed CO molecules in the initial stages of adsorption while a saturation value develops at higher coverages. The thickness dependence of the linear increase can be quantitatively interpreted with the help of the scattering hypothesis. The scattering cross section is calculated to beA=1.6Å2 in good agreement with the experimental evidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01542868
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    The effect of CO adsorption on the resistivity of thin Pd films (1995)
    Springer
    Applied physics 61 (1995), S. 587-590 
    Details
    ISSN: 1432-0630
    Keywords: PACS: 73.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract.  Thin Pd films of 5–50 nm thickness are deposited on glass substrates under UHV conditions and are subsequently covered step by step with CO at 77 or 293 K. The resistivity increases linearly with the number of adsorbed CO molecules in the initial stages of adsorption while a saturation value develops at higher coverages. The thickness dependence of the linear increase can be quantitatively interpreted with the help of the scattering hypothesis. The scattering cross section is calculated to be A=1.6 AÅ2 in good agreement with the experimental evidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01542868
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Immunocytochemical mapping of a C-terminus anti-peptide antibody to the GABA receptor subunit, RDL in the nervous system of Drosophila melanogaster (1996)
    Springer
    Cell & tissue research 284 (1996), S. 269-278 
    Details
    ISSN: 1432-0878
    Keywords: Key words: GABA receptor ; RDL subunit ; Nervous system ; Immunocytochemistry ; Drosophila melanogaster (Insecta)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract. An antibody raised against a peptide based on the C-terminal derived amino acid sequence from a cloned Drosophila melanogaster (fruit fly) gene, Rdl (resistant to dieldrin), was used to investigate localization of a GABA receptor subunit in adult male D. melanogaster. Many regions in the brain and thoracic ganglia were stained with this antibody. For example, staining was detected in the medulla, lobula and lobular plate optic neurpiles. Also stained were the antennal lobe glomeruli, the ellipsoid body of the central complex and the mushroom bodies. These results suggest possible roles for an RDL-like GABA receptor subunit in the processing of olfactory, visual and mechanosensory information in the nervous system of D. melanogaster.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004410050587
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Die aszendierende Varikophlebitis (1999)
    Springer
    Gefässchirurgie 4 (1999), S. 13-19 
    Details
    ISSN: 1434-3932
    Keywords: Schlüsselwörter Aszendierende Varikophlebitis ; Klassifikation ; Operationsindikation ; Operationsstrategie ; Key words Ascending varicophlebitis ; Classifica-tion ; Indication for surgery ; Surgical strategy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Varicophlebitis is the most important acute complication of a varicosed long and/or short saphenous vein. The initial extent and progression of the ascending varicophlebitis can be determined, either by duplex scanning or phlebography. By ascending, an extensive thrombus can enter the deep veins through the respective junctional valve (in the groin or at the knee) or via insufficient perforating veins. In view of pulmonary embolism as a possible complication, a clinically relevant classification of this syndrome appears useful. Stage I includes varicophlebitis without involvement of the respective junctional valve or deep veins. In stage II, the cranial portion of the thrombus has reached the respective junctional valves of the long or short shapenous vein. In stage III, the thrombus has entered the deep veins via these valves. In stage IV, the thrombus has reached the deep system via insufficient perforating veins. Stages I and IV should be treated conservatively, and the varicous veins should not be excised until after the acute phase. Stage II and III should be considered an indication for immediate surgery. The surgical strategy consists of crossectomy, resection of the saphenous vein without stripping, radical excision of all varicous veins and ligature of insufficient perforating veins. In stage III, the thrombectomy of the deep veins using the Fogarthy procedure must be carried out before any other measures are taken. The surgical strategy is similar for the short saphenous vein. In stage I disease, early surgery to alleviate local pain and infection, thus hindering recurrence and decreasing morbidity, should be considered.
    Notes: Zusammenfassung Die Varikophlebitis ist die wichtigste akute Komplikation einer Stammvarikosis vom V.-saphena-magna- und/oder -parva-Typ. Durch Aszension kann es zu einer Migration des Thrombus in das tiefe Venensystem über die Mündungen der Stammvenen in Leiste und Kniekehle oder über insuffiziente Vv. perforantes kommen, wodurch die Komplikation einer Lungenembolie droht. Ausdehnung und Progression einer aszendierenden Varikophlebitis lassen sich mit der Duplexsonographie und/oder Phlebographie diagnostizieren. Eine Klassifikation mit daraus folgenden therapeutischen Konsequenzen erscheint daher sinnvoll. Wir schlagen folgende Einteilung vor: Typ I umfaßt die Varikophlebitis der Stammvenen ohne Beteiligung der Mündungen von V. saphena magna und/oder parva und des tiefen Venensystems. Während der kraniale Thrombusanteil beim Typ II das tiefe Venensystem an der Einmündung der V. saphena magna und/oder parva erreicht, ragt der Thrombus beim Typ III bereits über die Mündung hinaus in das tiefe Venensystem hinein. Beim Typ IV migriert der Thrombus transfaszial über insuffiziente Vv. perforantes in die tiefen Venen. Die Typen I und IV sind die Domäne der primär konservativen Behandlung. Die Varikosis wird bei diesen Fällen erst nach Abklingen der Akutsymptomatik operativ saniert. Für die Typen II und III besteht eine dringliche Operationsindikation. Die Operation beinhaltet die Krossektomie, die Exstirpation der Stammvene über gesonderte Inzisionen, die Exhairese aller varikösen Äste und die Ligatur insuffizienter Vv. perforantes. Beim Typ III besitzt die Thrombektomie über die V.-saphena-magna- und/oder -parva-Mündung Vorrang gegenüber allen anderen Maßnahmen. Zu diskutierten ist der Operationszeitpunkt für den Typ I. Die frühzeitige operative Sanierung der schmerzhaften und langwierigen Erkrankung führt zu einem schnellen Rückgang der lokalen Entzündung und damit zu schnellerer Schmerzfreiheit, zur Verhinderung von Rezidiven mit der Gefahr des Übergangs in progrediente Stadien und zur Verkürzung der Krankheitsdauer.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00010533
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...