Library

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
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 4198-4203 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The deuterated dicyanoquinonediimine salt Cu(2-CD3,5-CD3-DCNQI)2, (d6), a highly conductive organic metal, exhibits a phase transition from the metallic to the insulating state at Tc≈60 K. In a wide temperature range we observe an anticoincidence of high conductivity and electron spin resonance (ESR). These experiments were performed simultaneously in our ESR apparatus equipped for application of He pressure up to 200 bar. Near Tc there is a coexistence of conducting (ESR-silent) and insulating (ESR-detectable) domains. This correlation of ESR and conductivity σ points to a percolation limited conductivity. Upper and lower limits of the size of the domains are given. Light shifts Tc to lower temperatures, pressure to higher ones. This could be due to shrinking of the lattice which induces the phase transition when critical structural parameters are approached. This is most probably explained by a simultaneous development of a charge density wave (CDW) and a spin pairing within the DCNQI stack together with the trimerization of the lattice. Systematic measurements by variation of temperature, pressure, and light led to phase diagrams of (d6) and to the understanding of the mechanism of the phase transitions. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz 42 (1999), S. A311 
    ISSN: 1437-1588
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1434-601X
    Keywords: PACS:29.25.Dz Neutron sources – 25.40.Ve Other reactions above meson production thresholds – 13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons etc.)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstact: The kinetic energy spectrum and the polarization of the PSI neutron beam produced in the reaction 12C(p,n)X at 0° with 590 MeV polarized protons were investigated. A strong energy dependence of the neutron beam polarization is observed which was not expected at the time the neutron beam was built.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 97 (1995), S. 83-93 
    ISSN: 1434-6036
    Keywords: 79.60 ; 71.20 ; 71.28
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We have investigated hole doped (by lithium) and electron-doped (by nickel metal) NiO with photoemission (PES), inverse photoemission (IPES) and low and high energy electron energy loss spectroscopy (EELS). Both types of doping create empty states approximately in the middle of the charge transfer gap of undoped NiO.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Monatsschrift Kinderheilkunde 147 (1999), S. 626-633 
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Varizellen ; Impfstoff gegen Varizellen ; Routineprüfung ; Indikationsimpfung ; Anwendung in Deutschland ; Key words Varicella ; Varicella vaccine ; Routine vaccination ; Vaccination of risk groups use in Germany
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Background: For more than ten years, a live, attenuated varicella vaccine is available. With the licensure of a temperature stable vaccine preparation in Germany in 1994, a cost reduction from DM 510,– to DM 99.50 was achieved with a general vaccine availability independent of special cooling requirements. In the United States, in Japan and in Southern Korea varicella vaccine is already in use for routine vaccination in the second year of life. In contrast, in Germany the recommendation for VZV-vaccination is restricted to patients at increased risk for varicella complications as well as for regular intimate contacts of such persons. Discussion: In this article a short review of varicella and zoster is given, the characteristics of the VZV-vaccine are described and the options for future use in Germany are discussed.
    Notes: Zusammenfassung Hintergrund: Seit mehr als 10 Jahren ist ein Lebendimpfstoff gegen Varizellen verfügbar. Mit Zulassung eines temperaturstabilen Präparats in Deutschland im Jahr 1994 sind die Kosten für eine Dosis von rund DM 510,– auf DM 99,50 gesunken, eine generelle Verfügbarkeit ist heute gewährleistet. In den Vereinigten Staaten von Amerika, in Japan und in Südkorea wird dieser Impfstoff routinemäßig und universell im Kleinkindesalter appliziert, in Deutschland dagegen wird er lediglich als Indikationsimpfung für Risikogruppen empfohlen. Diskussion: In diesem Artikel wird kurz die Varicella-Zoster-Virus(VZV)-Infektion beschrieben, danach werden die Charakteristika des VZV-Impfstoffs dargestellt. Die verschiedenen Möglichkeiten der Anwendung des VZV-Impfstoffs und deren jeweilige Folgen in Deutschland werden diskutiert.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1432-055X
    Keywords: Schlüsselwörter TIVA ; Propofol/Remifentanil ; Balancierte Anästhesie ; Sevofluran/Fentanyl ; Laparoskopie ; Gynäkologie ; Key words TIVA ; Propofol/Remifentanil ; Balanced anaesthesia ; Sevoflurane/Fentanyl ; Laparoskopy ; Gynaecology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Objective: This study was designed to investigate the differences between TIVA with propofol/remifentanil (P/R) and balanced anaesthesia with sevoflurane/fentanyl (S/F) in gynaecological laparoscopic surgery. Emphasis was put on haemodynamic reaction, recovery profile, postoperative side effects and patient satisfaction. Methods: Sixty patients were randomly assigned to receive either total intravenous anaesthesia with propofol/remifentanil or anaesthesia with sevoflurane/fentanyl. After premedication (midazolam) and induction of anesthesia (propofol, atracurium) in both groups, either 1 µg/kg fentanyl (S/F) or 1 µg/kg remifentanil (P/R) was injected. Anaesthesia was maintained with 0.5 µg/kg/min remifentanil (reduced to 50% after 5 min) and 0.06 µg/kg/min propofol (P/R) or 1.7 vol % sevoflurane (S/F). Both groups were mechanically ventilated with 30% oxygen in air. The administration of sevoflurane and the infusion of the anaesthetics were adjusted to maintain a surgical depth of anaesthesia. For postoperative analgesia 1 g paracetamol was administered rectally prior to surgery. After recovery 20 mg/kg metamizol was given intravenously. At the end of surgery the anaesthetics were discontinued and haemodynamics, early emergence from anaesthesia, pain level, frequency of analgesic demand, incidence of PONV, shivering and patient satisfaction were assessed. Parameters were recorded for 24 h postoperatively. Results: Recovery time after propofol-remifentanil anaesthesia was significantly shorter than after administration of sevoflurane and fentanyl (spontaneous ventilation 4.1 vs. 6.3 min, extubation 4.3 vs. 9.3 min, eye opening 4.4 vs 8.2 min, stating name 5.3 vs. 13.2 min, stating date of birth 5.4 vs. 13.3 min). There were no significant differences between the groups in shivering, pain score, analgesic demand and PONV. The S/F group responded to tracheal intubation with significantly higher blood pressure than the P/R group. During maintenance of anaesthesia heart rate in patients with S/F was significantly higher (P/R: HR max +16/–10; S/F: HR max +24/–0.). Measured on a scale from very satisfied to very dissatisfied, 73% of the patients in the P/R group were ”very satisfied” (S/F 23%) and 23% were ”satisfied” (S/F 62%). Conclusion: Compared with patients given balanced anaesthesia with sevoflurane and fentanyl, TIVA with propofol and remifentanil proved to be particularly suited for gynaecological laparoscopic surgery. Its major advantages are haemodynamic stability, significantly shorter times of emergence, and the exceptional acceptance by the patients.
    Notes: Zusammenfassung Fragestellung: Unterscheidet sich eine TIVA mit Remifentanil/Propofol (P/R) von einer balancierten Anästhesie mit Sevofluran/Fentanyl (S/F) hinsichtlich der Hämodynamik, des Aufwachverhaltens, postoperativer Nebenwirkungen und der Patientenzufriedenheit? Methodik: 60 Patientinnen wurden randomisiert einer Anästhesie mit (P/R) oder (S/F) zugeteilt. Nach oraler Prämedikation mit Midazolam wurde die Narkose mit Propofol eingeleitet, die Relaxierung erfolgte mit Atracurium. Gemäß randomisierter Gruppenzuteilung wurde 1 µg/kg Fentanyl oder 1 µg/kg Remifentanil i.v. injiziert und die Narkose bis zum OP-Ende entweder mit 0,5 µg/kg/h Remifentanil (Reduktion auf 50% nach 5 min) und mit 0,06 mg/kg/min Propofol oder mit 1,7 Vol.-% Sevofluran aufrechterhalten. Beide Gruppen wurden mit 30% O2 in Luft beatmet. Die Dosierung von Sevofluran, Propofol und Remifentanil wurden bei Bedarf der jeweiligen Intensität chirurgischer Stimuli angepaßt. Zur postoperativen Analgesie erhielten alle Patientinnen zu OP-Beginn 1 g Paracetamol rektal, nach Erwachen Metamizol 20 mg/kg i.v.. Bei OP-Ende wurde die Anästhetikazufuhr unterbrochen und folgende Parameter erfaßt: mittlerer arterieller Blutdruck, Herzfrequenz, Aufwachverhalten, Schmerzintensität, Analgetikabedarf, PONV, Muskelzittern und die Patientenzufriedenheit mit dem Anästhesieverfahren. Der Beobachtungszeitraum betrug 24 h. Ergebnisse: Die Patientinnen waren nach einer P/R Narkose signifikant eher wach und orientiert als nach einer Anästhesie mit S/F (Spontanatmung 4,1 vs. 6,3 min, Extubation 4,3 vs. 9,3 min, Augenöffnen 4,4 vs. 8,2 min, Namen nennen 5,3 vs. 13,2 min, Geburtsdatum 5,4 vs. 13,3 min). Die Inzidenz von PONV (43% vs. 43%) und Muskelzittern (56% vs. 37%) sowie die Schmerzintensität und die Anzahl der Schmerzmittelanforderungen (67 vs. 52) waren in beiden Gruppen vergleichbar. Der MAP war in der S/F-Gruppe nach der Intubation signifikant höher, die HF im gesamten Verlauf signifikant höher als in der P/R Gruppe (P/R: HF max. +16/–10; S/F: HF max. +24/–0). Auf einer Skala von „sehr zufrieden–sehr unzufrieden” waren 73% (P/R) der Patientinnen mit dem Anästhesieverfahren „sehr zufrieden” (S/F 23%), 23% „zufrieden” (S/F 62%). Schlußfolgerung: Verglichen mit einer balancierten Anästhesie mit Sevofluran und Fentanyl erwies sich die TIVA mit Remifentanil und Propofol als besonders vorteilhaft für laparoskopische Operationen in der Gynäkologie. Wesentliche Vorteile waren signifikant schnellere Aufwachzeiten, die hämodynamische Stabilität und die große Akzeptanz des Anästhesieverfahrens durch die Patientinnen.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 155 (1996), S. 74-76 
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    ISSN: 1432-1076
    Keywords: Key wordsHaemophilus influenzae type b ; Acellular pertussis ; Vaccination ; PRP-tetanus ; Diphtheria
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract With an increasing number of new vaccines available for routine childhood immunization, combination vaccines are needed in order to maintain or achieve a high compliance with recommended immunization programmes. In a prospective, randomized, comparative, multi-centre study, 822 healthy infants were enrolled to receive three doses of either a candidate or a commercially available Haemophilus influenzae type b (Hib) vaccine concomitantly with diphtheria-, tetanus- acellular pertussis (DTaP) vaccine. Study subjects were randomly allocated to one of the following groups: (1) separate, or (2) mixed injection of DTaP and candidate Hib vaccine, or (3) separate injection of DTaP and commercial Hib vaccine. One year later the first 189 study subjects received either separate or mixed injections of the same Hib and DTaP vaccines as booster doses. Evaluation of reactogenicity was based on diary cards completed by parents. Immunogenicity was documented by measuring IgG antibody concentrations in serum samples taken before and 4 weeks after primary and booster vaccination. No serious adverse events occurred and most local and systemic reactions were mild to moderate. Booster doses were more reactogenic than primary doses with all groups. Antibody concentrations against pertussis antigens were similar to those seen with DTaP alone. All but one subject had protective antibody concentrations against diphtheria and tetanus. Primary immune response to the Hib vaccine was significantly lower in the group receiving the mixed Hib-DTaP vaccine, however, ≥95% of vaccinees had anti-Hib antibody concentrations ≥0.15 μg/ml and there was a marked booster response (〉100-fold) in all groups. Conclusions Mixing DTaP and Hib vaccines for primary immunization caused a decrease in anti-Hib antibody response, although after primary immunization as after booster doses, all subjects showed antibody concentrations considered to be protective for invasive Hib disease. Mixing of the vaccines did not result in increased reactogenicity.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 157 (1998), S. 395-401 
    ISSN: 1432-1076
    Keywords: Key words Pertussis ; Cost-effectiveness ; Acellular pertussis vaccine ; Whole-cell pertussis vaccine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Acellular pertussis vaccines are less reactogenic than whole cell pertussis vaccines, but they are also more expensive. Based on simulation models, we compared the costs and effects of three alternative pertussis vaccination strategies in German children to ”no prevention”: (1) vaccination with whole-cell vaccine at 45% coverage (vaccine efficacy 90%), (2) vaccination with acellular vaccine at 45% coverage (vaccine efficacy 85%), and (3) vaccination with acellular vaccine at 90% coverage. In the two low coverage scenarios expected annual savings in direct medical costs through prevention of disease were larger for whole-cell than for acellular vaccination (252 vs 216 million DM, respectively). Direct costs for treating the more important adverse events induced by whole-cell vaccination (16.9 million DM annually) did not outweigh the higher direct costs of pertussis infections not prevented with the acellular vaccine and the higher price of the acellular vaccine. However, vaccination with acellular pertussis vaccine rapidly becomes as cost saving as vaccination with whole-cell vaccine as soon as vaccination coverage can be raised from 45% to 52.5% with acellular vaccine. Acellular vaccination is also the superior alternative when considering indirect cost savings resulting from reduction in work-loss due to adverse events. Conclusion In our simulations, the most cost-effective pertussis prevention strategy was the use of an effective whole-cell vaccine with a high coverage rate. Introduction of the more expensive acellular pertussis vaccines becomes cost saving if at least a 7.5% increase in coverage is achieved. If also non-medical indirect costs to parents resulting from vaccine associated side-effects are accounted for, acellular vaccines may be more cost-effective also in countries with already high whole-cell vaccine coverage.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-1076
    Keywords: Key words Haemophilus influenzae type b  ;   Combination vaccine  ;  Immunological memory
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The lack of an adequate immune response to the major polysaccharide of the Haemophilus influenzae type b (Hib) capsule (polyribosyl ribitol phosphate) (PRP) in very young infants (〈 18 months) can be overcome by conjugating PRP to a T-cell dependent carrier protein. We studied whether administration of a tetanus-PRP conjugate vaccine reconstituted with a diphtheria-tetanus-acellular pertussis-hepatitis B (DTPa-HBV) vaccine as a three dose primary course at 3, 4 and 5 months of age induced PRP-specific immunological memory, by examining the anti-PRP response to a dose of unconjugated PRP given with the DTPa-HBV booster approximately 1 year later. The unconjugated PRP elicited protective anti-PRP antibody levels (≥ 0.15 μg/ml) in all but 3 of the 369 vaccinees, including 13 infants who failed to demonstrate a measurable immune response after the primary course. In a sub-cohort of 54 subjects all had anti-PRP levels ≥ 0.5 μg/ml within 7–14 days of the booster showing a rapid anamnestic type response. Both primary and booster responses were predominantly IgG1 indicating a T-cell dependent response. The DTPa-HBV components elicited protective anti-diphtheria, anti-tetanus and anti-HBs antibody levels in ≥ 98.5% of vaccinees, and immune responses to each of the acellular pertussis vaccine components in 92.3%–97.3% of subjects. Conclusion The tetanus-PRP conjugate vaccine not only elicited a good primary humoral response, but also induced immunological memory so that the infants were able to mount a large and rapid immune response to subsequent exposure to plain PRP, indicating that protection against circulating wild-type Hib had been generated. Successful induction of immunological memory occurred even when there was no measurable humoral anti-PRP response to the primary course. Tetanus-PRP conjugate vaccine can be used in combination with DTPa-HBV vaccine, when administered separately or as a single injection in the same syringe, in primary immunisation schedules at 3, 4 and 5 months of age.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...