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  • 1
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Environmental geology 24 (1994), S. 1-6 
    ISSN: 1432-0495
    Keywords: Nitrate ; Groundwater ; Modeling ; Denitrification ; Nitrogen balance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract Implemented on behalf of the Federal Ministry for Research and Technology (BMFT), a model is developed to trace the nutrient flow of nitrate in the soil and the groundwater on a supraregional scale. Research work is intended to indicate regionally differentiated hazardous potentials and thereby provide a basis for recommending comprehensive measures to protect groundwater in Germany. The adaption of the model to the hydrogeological and agricultural conditions of other states is possible in principle. This article focuses on the hydrogeological model parts. A high nitrate pollution of groundwater can be expected in all regions with intensive agricultural use of the topsoil. In particular, groundwater in solid rock areas is susceptible to nitrate pollution. There a rapid groundwater turnover and thus a short residence time for the groundwater in the aquifer is typical. Oxidizing aquifer conditions usually prevail in solid rock aquifers, preventing nitrate degradation. In many loose rock areas, in contrast, the groundwater has a low flow velocity and a long residence time in the aquifer. Because of a lack of free oxygen, a complete degradation of nitrate can occur, as long as iron sulfide compounds and/or organic carbon are available in the aquifer. A more detailed presentation of the whole research work is given in Wendland et al. (1993).
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 41 (1981), S. 191-194 
    ISSN: 1432-1106
    Keywords: Multielectrode ; Monkey ; Vision ; Cortex ; Columns
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A 30-fold multielectrode for extracellular recording of neuronal spikes is described. Single neuronal spikes were isolated simultaneously by about half of the electrodes. The technique has been applied to demonstrate the spatial distribution of ocular dominance and orientation preference in striate cortex.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1106
    Keywords: Cortex ; Vision ; Eye movements ; Monkey
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Visual responses were recorded from single cells in the parafoveal striate (A17) and prelunate (A19) cortex of awake rhesus monkeys while they were fixating a stationary or moving spot of light in the presence of a moving or stationary stimulus. Retinotopy and stimulus requirements were found to be less strict in A19 as compared to A17. Striate cells preferred slow stimulus movements and displayed a large amount of binocular interaction. Many prelunate cells responded well to fast stimulus movements, all were binocular but only a few showed binocular interaction. In both areas an overall deficit of visual responses during saccadic eye movements was observed which was mostly due to the cells' inability to respond to stimuli moving at saccadic velocities. Only in A19 were there cells which seemed to receive non-sensory signals reducing visual responses during rapid eye movements. We concluded that the prelunate cortex has access to input which does not use the geniculate-striate pathway. The additional observation of presaccadic activation of some cells supports the idea that activity in the prelunate cortex may be associated with events related to visually guided changes of the direction of gaze and/or attention.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Experimental brain research 61 (1986), S. 451-456 
    ISSN: 1432-1106
    Keywords: Neuronal variability ; Visual cortex ; Monkey ; Multi-microelectrode
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Recordings from the visual cortex of anaesthetized monkeys taken with a 30-fold multimicroelectrode demonstrate that the neuronal variability, defined as the change in response strength over time spans of a few seconds to several minutes, is highly correlated within groups of neurones. Several such groups exhibiting independent variability between groups, coexist within the area recorded. This within-group covariance suggests that a major part of neuronal variability is due not to a noise process in the cells, but rather to additional inputs to the neurones, which are not under control of the experimenter.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 49 (1996), S. 255-259 
    ISSN: 1432-1041
    Keywords: Geriatric patient ; medication use ; functional capacity ; geriatric assessment ; compliance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objectives: To examine medication problems during a stay in hospital and after discharge and to identify risk factors that contribute to poor compliance with medication a prospective observational study was carried out in an university-affiliated geriatic hospital and a patients' home. Patients: One hundred and nineteen patients admitted from home to the geriatric hospital underwent a comprehensive geriatric assessment. They were also tested in opening and removing tablets from various common medicine containers. Drug prescriptions before, during and after the hospital stay were recorded. Medication use at home was observed by a member of a hospital-based home intervention team. The patients' reports of their drug therapy was compared with those by their family doctors. Results: Of all tested patients 10.1% failed to open at least one container. This inability was associated with poor vision, impaired cognitive function and low manual dexterity. Compliance with prescribed medication was associated with cognitive function, ability to handle medication containers, number of prescribed drugs and recent changes in drug prescriptions. Of the patients only 39.5% had stable drug prescriptions during the 3-month study period. Doctor/patient agreement concerning drug therapy was low in all age groups. The agreement rate and patients' knowledge of their treatment was correlated with cognitive function and the number of prescribed drugs. Conclusion: Patients' ability to open and remove tablets from common commercial packages/containers should be tested routinely during a stay in hospital. Management of medication should be taught and supervised within the first few days after discharge from hospital.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 49 (1996), S. 255-259 
    ISSN: 1432-1041
    Keywords: Key words Geriatric patient; medication use ; functional capacity ; geriatric assessment ; compliance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objectives: To examine medication problems during a stay in hospital and after discharge and to identify risk factors that contribute to poor compliance with medication a prospective observational study was carried out in an university-affiliated geriatic hospital and a patients’ home. Patients: One hundred and nineteen patients admitted from home to the geriatric hospital underwent a comprehensive geriatric assessment. They were also tested in opening and removing tablets from various common medicine containers. Drug prescriptions before, during and after the hospital stay were recorded. Medication use at home was observed by a member of a hospital-based home intervention team. The patients’ reports of their drug therapy was compared with those by their family doctors. Results: Of all tested patients 10.1% failed to open at least one container. This inability was associated with poor vision, impaired cognitive function and low manual dexterity. Compliance with prescribed medication was associated with cognitive function, ability to handle medication containers, number of prescribed drugs and recent changes in drug prescriptions. Of the patients only 39.5% had stable drug prescriptions during the 3-month study period. Doctor/patient agreement concerning drug therapy was low in all age groups. The agreement rate and patients’ knowledge of their treatment was correlated with cognitive function and the number of prescribed drugs. Conclusion: Patients’ ability to open and remove tablets from common commercial packages/containers should be tested routinely during a stay in hospital. Management of medication should be taught and supervised within the first few days after discharge from hospital.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 99 (1989), S. 152-156 
    ISSN: 0942-0940
    Keywords: Plasma-cell granuloma ; Gagel granuloma ; histiocytosis X ; hypothalamus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two patients suffering from diabetes insipidus, with additional symptoms of impaired vision and signs of panhypopituitarism and increased intracranial pressure, showed a normal sella tursica in the X-ray examination of the skull but large, dense space-occupying lesions in the hypothalamus on CT scans of the brain. NMR performed in one patient disclosed suprasellar growth of a hypothalamic lesion. Proliferation of lymphoplasmocytes and mature plasma cells was seen by light microscopic and electromicroscopical examination of biopsy samples in both cases; histiocytes and multinucleated giant cells were absent; tuberculosis, syphilis and sarcoidosis were ruled out by appropriate tests. Plasma cells exhibited polyclonal immunoglobulin expression as revealed by immunocytochemistry using the PAP method. Taken together these features are typical of plasma cell granuloma. Transitory remission after radiotherapy was obtained in one patient.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 130 (1965), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 182 (1958), S. 1359-1360 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE effect of auxins on unicellular algae has been the subject of numerous papers, but many of the reported findings contradict each other as to whether and how the auxins affect these organisms1-3. We re-examined this problem because algae, if they responded to auxin, would be ideal organisms for ...
    Type of Medium: Electronic Resource
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