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  • 1
    Monograph available for loan
    Monograph available for loan
    Budapest : Akadémiai Kiadó
    Associated volumes
    Call number: O 5843
    In: Sammlung Wichmann
    Type of Medium: Monograph available for loan
    Pages: 160 S. : graph. Darst.
    ISBN: 963053231X
    Series Statement: Sammlung Wichmann 14
    Language: English
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 2
    Series available for loan
    Series available for loan
    Budapest : Univ. of Technology and Economics
    Associated volumes
    Call number: M 03.0354
    In: Periodica polytechnica
    Type of Medium: Series available for loan
    Pages: S. 151-242 S.
    Series Statement: Periodica polytechnica : civil engineering 46,2
    Classification:
    Geodesy
    Location: Lower compact magazine
    Branch Library: GFZ Library
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 14 (1979), S. 0 
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The acute effects of a herbicide based on 2,4-D on embryos and larvae of bleak, Alburnus alburnus L. exposed to concentrations of 25–3200 mg 1−1 for 12–48 hours were investigated. The 2,4-D delayed or stopped the development of embryos in their early stages, caused behavioural changes and morphological alterations. The L.C.50 values for embryos varied between 12–9 and 15·9–4mg 1−1 and for larvae from 51·6 to 111·2mg 1−1 according to the time of exposure. The level of 2,4-D in Lake Balaton, or similar shallow lakes, without substantial injury of the littoral fish fauna should not surpass 0·5–1·0 mg 1−1.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 4 (1972), S. 0 
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A new species of Ponto-Caspian Neogobius fluviatilis is reported from Lake Balaton. This is the most western occurrence in central Europe. The main taxonomic marks and the distinguishing features from the related species are discussed and the geographical ranges are summarized. The immigration into Lake Balaton, the successful acclimatization indicated by spawning and some ecological characters are also discussed.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of clinical monitoring and computing 14 (1998), S. 141-144 
    ISSN: 1573-2614
    Keywords: anesthesia circle system ; low flow anesthesia ; FIO2 monitoring ; oxygen uptake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Notes: Abstract Monitoring of oxygen uptake during general anesthesia would have several benefits, but unfortunately, this is usually not available in the clinical routine situation. The herein proposed formula to calculate oxygen uptake (VO2) necessitates only the accurate measurement of FIO2 as well as fresh gas flow and composition. Additionally, this method is not affected by the presence of anesthetic gases. The calculation uses the difference in oxygen content between the delivered fresh gas and the resulting FIO2 in the anesthesia circle system. This gap originates from oxygen uptake (that is mainly caused by metabolic oxygen consumption) and is more pronounced if low fresh gas flows are administered. In order to obtain representative results, calculation of VO2 should be performed only after achievement of respiratory steady state conditions. Due to its simplicity and wide availability, it has the potential to become a valuable extension in anesthesia monitoring during the performance of routine general anesthesia.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of clinical monitoring and computing 15 (1999), S. 23-27 
    ISSN: 1573-2614
    Keywords: Pulse oximetry ; oxygen saturation ; carbon dioxide tension ; continuous non-invasive monitoring
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Notes: Abstract Objective. To test the accuracy of a new combined oxygen saturation and cutaneous carbon dioxide tension (SPO2–PCO2) sensor in a routine adult clinical environment. This probe provides a non-invasive and continuous monitoring of the arterial oxyhaemoglobin saturation, arterial carbon dioxide tension and pulse rate at the ear lobe. The sensor is intended to measure both relevant respiration/ventilation parameters in one single probe. Methods. Ten adult patients were consecutively studied during general anaesthesia. During the first 5 min after sensor placement at the ear lobe, arterial blood samples were drawn each minute. Carbon dioxide tension and oxygen saturation measurements were obtained simultaneously at 1-min intervals. After this period, patients were hyper-, normo- and hypoventilated. After 15 min at each setting, the simultaneously obtained cutaneous and arterial carbon dioxide tension values were compared. Results. A total of 80 comparisons between ear lobe SpO2–PCO2 measurement, finger clip pulse oximetry and arterial blood gas values were analysed. Three minutes after sensor placement, there were no significant differences between ear probe (cutaneous) and arterial carbon dioxide tensions (p = 0.367). Comparison of arterial with cutaneous carbon dioxide values demonstrated an excellent linear correlation (r2 = 0.92), and showed a standard error of estimate (SDEE) of 0.26 kPa (1.95 mmHg) only. The mean difference was −0.08 kPa (−0.60 mmHg) with a limits of agreement range of −0.38 kPa to + 0.22 kPa (−2.85 mmHg to + 1.65 mmHg). Concerning oxygen saturation measurements, the absolute SpO2 value deviated 1% or less from standard pulse oximetry. Conclusions. During general anaesthesia, postoperative recovery and critical care treatment, both monitoring of oxygenation and ventilation is important. Since pulse oximetry estimates only arterial oxygen saturation, periodic blood sampling is still necessary to determine the patient’s arterial carbon dioxide status. We could demonstrate that the difference between cutaneous and arterial PCO2 was clinically unimportant, and therefore we conclude that the two methods of estimating the patient’s carbon dioxide status may be used interchangeably. Our results demonstrated that 3 min after sensor placement, the new SpO2–PCO2 sensor prototype proved to be a reliable tool for continuous non-invasive monitoring of oxygenation and ventilation.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of clinical monitoring and computing 10 (1994), S. 410-412 
    ISSN: 1573-2614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of clinical monitoring and computing 14 (1998), S. 295-295 
    ISSN: 1573-2614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 389 (1998), S. 203-216 
    ISSN: 1573-5117
    Keywords: Chironomidae ; Chironomus gr.plumosus ; Procladius choreus ; short-term changes ; food conditions ; shallow lake
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Spatial and short-term changes in the composition and density of the macrobenthic fauna were studied in Lake Balaton, a large shallow lake in Central Europe (Hungary). Spatial differences were examined along five transects and short-term changes at two stations of different trophic state. The macrobenthos consisted almost exclusively of Tubificidae and Chironomidae of the species Chironomus gr. plumosus, Procladius choreus, Tanypus punctipennis, Microchironomus tener and Cladotanytarsus sp. The Oligochaeta biomass showed a significant short-term decrease from 1995 to 1998, and their average biomass proved to be 0.86 and 0.79 g WFW (wet formalin weight) m-2 in 1996 and 1997, respectively. Chironomidae showed significant spatial and short-term differences following variations in primary production. Higher primary production resulted in higher biomass (up to 153.4 g WFW m-2 and 9785 ind. m-2 in 1995) of Chironomus-Procladius community, while lower primary production resulted in a very low biomass and abundance of the predatory Procladius-Tanypus-Microchironomus community (average: 3.16 g WFW m-2 and 1311 ind. m-2 in 1997). As compared to other lakes of similar climatic conditions, the total production of oligohaetes and chironomids proved to be very low in 1996 and 1997 (49.2 and 54.1 KJ m-2 yr-1, respectively). The 90% of the average chironomid production of Lake Balaton in 1996 and 1997 belonged to Ch. gr. plumosus (5.63 and 5.13 g m-2 yr-1), P. choreus (4.3 and 3.47 g m-2 yr-1) and T. punctipennis (0.27 and 2.21 g m-2 yr-1).
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Hydrobiologia 97 (1982), S. 3-7 
    ISSN: 1573-5117
    Keywords: phytoplankton biomass ; chlorophyll a ; fish yield ; Lake Balaton
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Coefficients of determination between fish yields in Lake Balaton (kg/ ha) and different measurements of phytoplankton abundance were: phytoplankton biomass (0.48), chlorophyll a (0.45). The same indices for catch per unit of effort (CUE) proved to be 0.82 and 0.88, respectively. The correlation between fish yields and phytoplankton density has been described in second-degree polynomials.
    Type of Medium: Electronic Resource
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