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  • 1
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 259 (1976), S. 391-392 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Few cases of massive fish kill due to low pH have been documented in natural environments. A massive fish kill in the Tovdal River in southern Norway in the spring 1975 provided an opportunity to investigate physiological changes in the affected population. Formerly a major salmon river, the Tovdal ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 323 (1986), S. 324-327 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Birkenes, a 0.4-km2 forested catchment with shallow podsolic soils on granitic bedrock, is situated 30 km north of Kristiansand, in an area with atmospheric loading of nearly 7 g SO^" m~2 yr"1 (réf. 7). The catchment is drained by three small second-order streams which combine to form a third-order ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    ISSN: 1573-7217
    Schlagwort(e): epirubicin ; metastatic breast cancer ; mitoxantrone
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Background: The mitoxantrone combination CNF and the epirubicin combination CEF have shown similar activity and less toxicity than the standard CAF combination in metastatic breast cancer (MBC). A prospective randomised study was started to compare safety and activity between CEF and CNF administered using a classical chemotherapeutic schedule in MBC. Patients and methods: From December 1987 to June 1993, 151 patients were randomised to receive cyclophosphamide (C) 100 mg m−2 p.o. days 1–14, fluorouracil (F) 500 mg m−2 i.v. days 1 and 8, and epirubicin (E) 30 mg m−2 i.v. days 1 and 8, or mitoxantrone (N) 6 mg m−2 i.v. days 1 and 8, every 4 weeks. Seventy‐three patients were eligible for CEF and 72 for CNF. Results: Objective responses were observed in 61.6 of the CEF group and 44.4 in CNF group (p=0.004). The median duration of response was 64 weeks in CEF and 50 weeks in CNF group (p=0.02) and median time to progression was 51 and 33 weeks, respectively (p=0.0004). At the time of analysis, all except six patients (one in CNF and five in CEF) had died and the median survival time in the CEF group was longer than in CNF (74.4 weeks vs 51.4 weeks; log-rank χ2 test p=0.015). CNF produced more hematologic toxicity than CEF (WHO scale; grades 2–4): leucopenia 84% vs 68% (p=0.03) and trombocytopenia 17% vs 4.5% (p=0.01); CEF caused more grade 2 and 3 alopecia: 93% vs 70% (p=0.00 1). Conclusion: The combination CEF using this schedule and dosage in metastatic breast cancer is more effective with less toxicity than CNF, except for alopecia, and was associated with longer survival.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    ISSN: 1573-7217
    Schlagwort(e): advanced breast cancer ; vinorelbine ; epirubicin ; cyclophosphamide ; combination chemotherapy
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Background.Vinorelbine (Navelbin®; N) has proven to be active in patients with advanced breast cancer (ABC) and cyclophosphamide (C) and epirubicin (Epiadriamycin®: E) are still among the main cytostatic agents against this tumor. On this basis was carried out a study to determine the activity and toxicity of the combination of these three agents (CEN). Patients and method.From April 1996 to March 1998, 59 patients with ABC were recruited of whom 56 were found eligible and evaluable for toxicixty and 55 for activity. The treatment regimen was C: 400 mg/m2, E: 30 mg/m2 and N: 25 mg/m2 administered intravenously on days 1 and 8 of a 28-day cycle. Results.The median number of cycles administered was 6 (range: 1–16). The most common hematological toxicity was grade (G) 3 and 4 neutropenia occurring in 36% of patients, associated with fever in 7% of them. Grade 3–4 thrombocytopenia and anemia occurred in 5% and 7%, respectively. Other G2–G3 non hematologic toxicities were: N/vomiting in 34%, alopecia in 73% and mucositis in 11% of patients. An objective response was achieved in 28 of 56 patients (50%) (95% confidence interval (CI): 37–63%): complete response (CR) in 9%, partial response (PR) in 41%. The median duration of response, time to progression and overall survival time was 54, 47 and 90 weeks, respectively. Conclusion.The CEN combination at these doses and treatment schedule appears to have acceptable tolerability but there is no apparent improvement in therapeutic efficacy when compared to other regimens used as first line treatment in ABC.
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Water, air & soil pollution 36 (1987), S. 371-379 
    ISSN: 1573-2932
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract High immediate postspawning mortality due to inferior autumn water quality has been hypothesized to cause juvenilization in some brown trout populations in acidified areas. We exposed male and female spawners and female postspawners from a juvenile-dominated brown trout population to acidic streamwater (pH = 4.83, Ali = 240 μg L−1) and a limed control (pH = 5.70, Ali = 55 μg L−1) for 28 days in November and December, 1984. Water chemistry was monitored at least bi-daily, and physiological stress was assessed by analysis of plasma chloride, osmolality and haematocrit. Neither pronounced physiological stress nor mortality was observed at the control site. At the exposure site trout showed significant but moderate stress responses and 15 % died. The results are discussed in terms of potential population effects and physiological mechanisms, e.g., plasma volume reduction.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Water, air & soil pollution 23 (1984), S. 97-113 
    ISSN: 1573-2932
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Energietechnik
    Notizen: Abstract Fish status in terms of ‘good, ‘sparse’, ‘lost’, ‘never had fish’, has previously been reported for several thousands of lakes in southermost Norway. In more than a thousand of these lakes pH and conductivity have also been measured. These data have been used to establish a relationship between pH and fish status (brown trout). It is estimated that a uniform pH increase of 0.2 units will result in status changes from category ‘lost’ to ‘sparse’ in 12% of the lakes (27% of the lakes which have lost the fish population). Altogether 21 % of the lakes are predicted to change to a better category. We have used a fixed pH shift in order to make the approach applicable. This is a rather drastic simplification since the lakes will respond very differently to a reduction in S deposition depending on the original acidity and a number of other factors. The limitations of the approach and an alternative method used by Chester (1982) are discussed in detail.
    Materialart: Digitale Medien
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