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  • 1980-1984  (7)
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 39 (1984), S. 0 
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The effect on heart rate of different rates of injection (10 seconds, 1, 3 und 5 minutes) of a fixed dose (neostigmine 2.5 mg and atropine 1.2 mg) and a weight-related dose (neostigmine 50 μg/kg and atropine 25 μg/kg) of neostigmine-atropine mixture given for the reversal of residual competitive neuromuscular block was studied in 196 healthy adult patients. In both series slow injection lessened and delayed the initial rise in heart rate. The subsequent fall in heart rate was less when the drugs were injected over 3 min compared with the 10 seconds and 1 minute injection groups but when given over 5 minutes there was a steady fall in heart rate, more so with the weight-related dose. It is recommended that a neostigmine and atropine mixture should be administered over 3 min.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food processing and preservation 7 (1983), S. 0 
    ISSN: 1745-4549
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: A number of commercial whey products were evaluated at the 4% (flour basis) level, using a straight dough pup loaf baking procedure. The loaf volume and crumb texture of the breads were compared to controls maak with and without nonfat dried milk (NFDM). Untreated sweet whey produced poor quality bread, but demineralized whey, whey protein concentrates, and a blend of whey plus NFDM plus soy flour gave loaf volumes and crumb grains equal to the NFDM controls. Potassium bromate requirements increased as the protein content of the whey product increased. Lactose is more concentrated in whey than in NFDM, but lactose concentration does not appear to cause the loaf depression. Contrary to literature reports with an acid whey, use of 0.2% diammonium phosphate (flour basis) alone does not totally replace NFDM in terms of both loaf volume and crumb struclure. However; diammoniumphosphate can correct for most of the suppressant activity of sweet whey. A correlation was found between the ash to protein ratio and baking performance of products.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Le choc traumatique a été provoqué chez 130 rats en les plaÇant dans un tambour Noble-Collip soumis à 600 révolutions, à la vitesse de 40 révolutions par minute. L'expérimentation a eu pour objet d'évaluer l'efficacité thérapeutique du fructose-1,6-diphosphate (FDP) en étudiant le taux de survie quand l'agent était administré à la fois avant et après l'expérimentation, d'une part, et seulement après l'expérimentation, d'autre part. Dans le premier groupe (n=50), où le traitement fut institué avant et après le traumatisme, les rats furent répartis au hasard en 3 sous-groupes: 1) 20 rats reÇurent 350 mg/kg de FDP avant et après le traumatisme, 2) 20 autres reÇurent de la mÊme faÇon des quantités égales de glucose, 3) 3 ne reÇurent ni FDP ni glucose. Dans le deuxième groupe (n=80), 35 rats reÇurent du FDP après le traumatisme, 35 du glucose et 10 ne furent soumis à aucun traitement. Les résultats sont les suivants: le taux de survie chez les rats traités par le FDP avant et après le traumatisme atteignit 85%, il fut seulement de 30% chez ceux qui reÇurent du glucose et de 20% chez ceux qui ne subirent aucun traitement. Dans le second groupe où les rats furent traités seulement après le traumatisme, le taux de survie fut de 66% pour ceux qui reÇurent du FDP, de 31% pour ceux qui reÇurent du glucose et de 20% chez les rats qui ne furent soumis à aucun traitement. Les résultats de cette étude et ceux obtenus en présence d'autres types de choc indiquent que le FDP possède une action thérapeutique anti-choc indiscutable, cette action étant de type métabolique et relevant de la production d'énergie endogénique grâce à la glycolyse.
    Abstract: Abstracto El shock traumático fue inducido en 130 ratas volteándolas en un tambor de Noble-Collip por un total de 600 revoluciones a 40 rotaciones/minuto. El protocolo original fue diseñado para evaluar la efectividad terapéutica de la fructosa-1,6-difosfato (FDP) en la reducción de la tasa de mortalidad cuando se administra antes y después del trauma, o solamente después del trauma. En el primer grupo (n=50), en el cual el tratamiento fue administrado antes y después del trauma, los animales fueron asignados a 3 subgrupos en la forma siguiente: 20 ratas recibieron 350 mg/kg de FDP antes del trauma y 350 mg/kg adicionales postrauma; otras 20 ratas recibieron iguales cantidades de glucosa de la misma manera, y 10 ratas no recibieron tratamiento. En el grupo tratado solo después de producida la lesión (n= 80), 35 ratas recibieron 350 mg/kg de FDP después del trauma; otras 35 recibieron glucosa; 10 no recibieron tratamiento. Las ratas de los diferentes subgrupos fueron volteadas al mismo tiempo. Las tasas de supervivencia en los subgrupos fue de 85% para aquellas que recibieron FDP, de 30% para las tratadas con glucosa (p〈0.005) y de 20% para las no tratadas. En los animales que fueron tratados después del trauma, también hubo un aumento significativo de la tasa de supervivencia para los tratados con FDP (66%), en tanto que para aquellos que recibieron glucosa un aumento de 31% (p〈 0.01) y de 20% para los no tratados. Los resultados del presente estudio y aquellos obtenidos en otros tipos etiológicos de shock, indican que el FDP posee una profunda actividad terapéutica antishock y que esta acción parece ser metabólicamente inducida mediante el aumento de la production de energía endógena por vía de la glicolisis.
    Notes: Abstract Traumatic shock was induced in 130 rats by tumbling them in a Noble-Collip drum for a total of 600 revolutions at 40 rotations/min. The experimental protocol was designed to evaluate the therapeutic effectiveness of fructose 1,6-diphosphate (FDP) in reducing the mortality rate when given both prior to and following the trauma, or only following the trauma. In the first group (n=50) in which the treatment was given prior to and after trauma, the animals were randomly assigned to 3 subgroups as follows: 20 rats received 350 mg/kg of FDP prior to and an additional 350 mg/kg after trauma; 20 other rats received in the same manner equal amounts of glucose; and 10 rats received no treatment. In the group treated only after inflicting the injury (n=80), 35 rats received 350 mg/kg of FDP after trauma; another 35 received glucose; and 10 received no treatment. The rats from the different subgroups were tumbled at the same time. Survival rates in the pretreated subgroups were 85% for those receiving FDP, 30% for glucose-treated animals (p〈 0.005), and 20% for the nontreated ones. In the animals that were treated after trauma, there was also a significant increase in survival rate for the FDP-treated ones (66%), while for those receiving glucose it was 31% (p〈0.01), and 20% for the nontreated ones. The results of the present study and those obtained in other etiological types of shock indicate that FDP has profound antishock therapeutic activity. This action appears to be metabolically mediated by augmenting the endogenous energy production via glycolysis.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Oecologia 47 (1980), S. 222-232 
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Evidence is presented that individuals of a large number of dioecious and subdioecious plant species are able to alter their sexual state in response to changes in the ambient environment and/or changes in size or age. We suggest that lability of sexual expression probably has survival value where a significant portion of the females must otherwise bear the cost of fruit production in unfavorable environments. We demonstrate that in patchy environments of the proper scale and variability in quality, labile sexual expression will enhance an individual's genetic contribution to the next generation.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A recombinant clone was isolated containing a sequence which occurs only on human chromosome 21 and defines a two-allele restriction fragment length polymorphism showing Mendelian inheritance. Forty seven percent of the London population are heterozygous for the polymorphism. The chromosomal location of the DNA sequence homologous to the probe was confirmed using rodent-human somatic cell hybrids. DNA from persons with Down syndrome and from their parents was analysed. It was possible to confirm trisomy 21 by dosage hybridisation to Southern blots, and to determine the origin of the supernumerary chromosome. The technique will be of use for determination of the paternal or maternal origin of nondisjunction in cases of Down syndrome which are not informative using existing markers.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-5036
    Keywords: Agropyron spicatum ; Artemisia tridentata ; Competition ; Dicot ; Grass tetany ; Monocot ; Rangelands ; Root CEC ; Soil CEC
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Root cation-exchange capacities (CEC) are related to tissue nutrient content of several native Utah range plants. The root CEC values for dicotyledonous species were found to be significantly larger than for monocotyledonous species (grasses). The relative amounts of monovalent and divalent cations taken up are strongly correlated with root CEC. Dicot species tend to take up divalent ions more efficiently than monocots, but monocots take up relatively more monovalent cations than dicots. The relationship of root CEC to cation uptake helps explain differential distribution of grass lands and shrublands in common climatic zones and has important implications for range revegetation programs.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of nuclear medicine 5 (1980), S. 75-84 
    ISSN: 1619-7089
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract As an alternative procedure to the exercise stress test used in myocardial scanning, vasoactive drugs were employed to elicit deficits in blood flow to myocardial regions supplied by stenotic arteries which maintain normal resting flow or collateral circulation. The data were collected from 35 dogs, some of which had partial stenosis (70–75%) on either major branch of the left coronary artery, and others which had Ameroid constrictor implants. The effects of lidoflazine, dipyridamole, and nitroglycerin on coronary hemodynamics and myocardial dispersion of potassium 43(43K) in animals with partial stenosis were evaluated in ten acute experiments. In the pilot studies, four rapid serial rectilinear control scans from 43K (750 μCi) were reported; dipyridamole (Persantin), lidoflazine, or nitroglycerin were then administered intravenously. When the selected drug reached a peak vasodilatative effect, a second equal bolus of 43K was given and four additional scans recorded. The last scan from the first set was subtracted from the corresponding regional count rates of all serial scans from the second set, and the resulting images were interpreted to be myocardial perfusion patterns induced by the drug intervention. The later studies were performed by giving only a single isotope injection after administering the drug. The control scans from dogs with partial stenosis or an Ameroid constrictor showed homogeneous distribution of the myocardial 43K. When drugs were used, the region supplied by compromised circulation became apparent because of lower counts when compared to the normally perfused ones. Coronary vasodilators, as opposed to postexercise in myocardial imaging, have a lesser effect on cardiac dynamics, peripheral hemodynamics, and also double the 43K uptake in normally perfused myocardium.
    Type of Medium: Electronic Resource
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