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  • 1995-1999  (40,543)
  • 1965-1969  (23,900)
  • 1860-1869  (4,448)
  • Chemistry  (68,717)
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  • 1
    Electronic Resource
    Electronic Resource
    Analysis of otolith chemistry in Nassau grouper (Epinephelus striatus) from the Bahamas and Belize using solution-based ICP-MS (1999)
    Springer
    Coral reefs 18 (1999), S. 171-178 
    Details
    ISSN: 1432-0975
    Keywords: Key words Otolith ; Chemistry ; ICP-MS ; Stock discrimination ; Epinephelus striatus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences
    Notes: Abstract  We examined the utility of otolith minor and trace element chemistry, assayed with inductively coupled plasma mass spectrometry (ICP-MS), as a means of delineating population structure in the Nassau grouper (Epinephelus striatus). We characterized the elemental composition of otoliths collected in 1993 from three locations in Exuma Sound, Bahamas and from Glover Reef, Belize in 1995. A single location in Exuma Sound was sampled in 1994 to test temporal variability in otolith composition. Five elements (Ca, Zn, Sr, Ba and Pb) were routinely detected, at levels significantly above background, by solution-based ICP-MS. Results from analysis of variance of elemental data, expressed as a ratio to Ca, indicated that there were no significant differences among the Exuma locations for any element, but significant variability was found between Glover Reef and the pooled Exuma localities for Zn/Ca, Sr/Ca and Ba/Ca ratios. Significant inter-annual differences at one Exuma Sound location was restricted to Ba/Ca ratios. Discriminant function analysis correctly classified 86% and 95% of the Belize and pooled Exuma sites, respectively. Otoliths from Belize were characterized by low Zn/Ca and high Ba/Ca and Pb/Ca ratios compared to otoliths from fish collected in Exuma Sound. Although differences in Ba levels may be related to upwelling at Glover Reef, more data are needed to definitely link otolith composition with regional differences in water chemistry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003380050176
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  • 2
    Electronic Resource
    Electronic Resource
    Repeated cat-associated peritonitis in a patient on automated nocturnal intermittent peritoneal dialysis (1999)
    Springer
    Clinical and experimental nephrology 3 (1999), S. 59-61 
    Details
    ISSN: 1437-7799
    Keywords: Key words Peritoneal dialysis ; Peritonitis ; Cat ; Pasteurella multocida
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 49-year-old man had three episodes of bacterial peritonitis in the 8 months after he started nocturnal intermittent peritoneal dialysis (NIPD) at home, using an automated cycler device. When peritonitis was first diagnosed, Enterobacter agglomerance was cultured in his peritoneal fluid. In the second and third episodes, Pasteurella multocida and alpha-Streptococcus were isolated, respectively. These bacteria are unusual pathogens in continuous ambulatory peritoneal dialysis (CAPD) peritonitis. Detailed questioning revealed that a domestic cat had bitten the dialysis tube before the patient experienced the second episode of peritonitis. Pasteurella multocida is part of the normal oral flora in cats and dogs. We isolated Pasteurella multocida from the teeth of the patient's cat. Enterobacter agglomerance is part of the common bacterial flora in animal's alimentary tract, and alpha-Streptococcus is commonly found in animal's respiratory tracts. Since the patient removed the cat from his bedroom, he has had no peritonitis. NIPD is a very convenient sysytem for patients in the final stage of renal failure; however, patients must be aware of the risks associated with keeping pets in their homes. This case is the first report of cat-associated peritonitis in Japan.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101570050011
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  • 3
    Electronic Resource
    Electronic Resource
    Direct connection of the nucleus reticularis gigantocellularis neurons with neck motoneurons in cats (1999)
    Springer
    Experimental brain research 128 (1999), S. 527-530 
    Details
    ISSN: 1432-1106
    Keywords: Key words Nucleus reticularis gigantocellularis ; Reticulospinal neuron ; Neck motoneuron ; Single-neuron EPSP ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Functional connections of single reticulospinal neurons (RSNs) in the nucleus reticularis gigantocellularis (NRG) with ipsilateral dorsal neck motoneurons were examined with the spike-triggered averaging technique. Extracellular spikes of single NRG-RSNs activated antidromically from the C6, but not from the L1 segment (C-RSNs) were used as the trigger. These neurons were monosynaptically activated from the superior colliculus and the cerebral peduncle. Single-RSN PSPs were recorded in 43 dorsal neck motoneurons [biventer cervicis and complexus (BCC) and splenius (SPL)] for 21 NRG-RSNs and 135 motoneurons tested. All synaptic potentials were EPSPs, and most of their latencies, measured from the triggering spikes, were 0.8–1.5 ms, which is in a monosynaptic range. The amplitudes of single-RSN EPSPs were 10–360 µV. Spike-triggered averaging revealed single-RSN EPSPs in multiple motoneurons of the same species (SPL or BCC), their locations extending up to nearly 1 mm rostrocaudally. Synaptic connections of single RSNs with both SPL and BCC motoneurons were also found with some predominance for one of them. The results provide direct evidence that NRG-RSNs make monosynaptic excitatory connections with SPL and BCC motoneurons. It appears that some NRG-RSNs connect predominantly with SPL motoneurons and others with BCC motoneurons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050875
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  • 4
    Electronic Resource
    Electronic Resource
    Neuronal pathways from low-threshold hindlimb cutaneous afferents to motoneurons innervating trunk muscles in low-spinal cats (1999)
    Springer
    Experimental brain research 128 (1999), S. 543-549 
    Details
    ISSN: 1432-1106
    Keywords: Key words Abdominal muscles ; Back muscles ; Motoneurons ; Cutaneous afferent ; Spinal cord ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Postsynaptic potentials (PSPs) evoked in motoneurons innervating the back and abdominal muscles in the lumbar part of the body by stimulating hindlimb cutaneous afferents were investigated in unanesthetized decerebate and spinal cats. Various types of PSP: pure excitatory postsynaptic potential (EPSP), pure inhibitory postsynaptic potential (IPSP), and mixed PSP (i.e., EPSP followed by IPSP, EPSP/IPSP; and IPSP followed by EPSP, IPSP/EPSP) were observed. The weak stimulation at 2 times threshold (2T) produced predominantly the EPSP, while at 5T the incidence of IPSP or EPSP followed by IPSP was increased. In about 20–50% of the various groups of motoneurons, PSPs evoked by ipsi- and contralateral nerves were qualitatively and quantitatively similar. For the other motoneurons, PSPs evoked by ipsi- and contralateral nerves were markedly different with respect to magnitude and/or polarity. These findings suggest that, within each motoneuron pool, some neurons act to increase stiffness of the trunk or to move vertically in response to an increased activity of cutaneous afferents, while the other motoneurons act to produce lateral bending of the trunk.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050879
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  • 5
    Electronic Resource
    Electronic Resource
    Receptive-field properties of adult cat’s retinal ganglion cells with regenerated axons (1999)
    Springer
    Experimental brain research 124 (1999), S. 383-390 
    Details
    ISSN: 1432-1106
    Keywords: Key words Retinal ganglion cells ; Axonal regeneration ; Single-unit activity ; Receptive field ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Receptive-field properties of retinal ganglion cells (RGCs) that had regenerated their axons were studied by recording single-unit activity from strands teased from peripheral nerve (PN) grafts apposed to the cut optic nerve in adult cats. Of the 286 visually responsive units recorded from PN grafts in 20 cats, 49.7% were classified, according to their receptive-field properties, as Y-cells, 39.5% as X-cells, 6.6% as W-cells, and 4.2% were unclassified. The predominant representation of Y-cells is consistent with a corresponding morphological study (Watanabe et al. 1993a), which identified α-cells as the RGC type with the largest proportion of regenerating axons. Among the X-cells, we only found ON-center types, whereas both ON-center and OFF-center Y-cells were found. As in intact retinas, the receptive-field center sizes of Y-cells and W-cells were larger than those of X-cells at corresponding displacements from the area centralis. Within the 10° surrounding the area centralis, the receptive fields of X-cells with regenerated axons were larger than those in intact retinas, suggesting that some rearrangement of retinal circuitry occurred as a consequence of degeneration and regeneration. Receptive-field center responses of Y-, X-, and W-type units with regenerated axons were similar to those found in intact retinas, but the level of spontaneous activity of Y- and X-type units was, in general, less than that of intact RGCs. Receptive-field surrounds were weak or not detected in more than half of the visually responsive RGCs with regenerated axons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050635
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  • 6
    Electronic Resource
    Electronic Resource
    Activity-dependent development of cortical axon terminations in the spinal cord and brain stem (1999)
    Springer
    Experimental brain research 125 (1999), S. 184-199 
    Details
    ISSN: 1432-1106
    Keywords: Key words Corticospinal tract ; Motor cortex ; Activity-dependent development ; Spinal cord ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Corticospinal (CS) axon terminations in several species are widespread early in development but are subsequently refined into a spatially more restricted distribution. We studied the role of neural activity in sensorimotor cortex in shaping postnatal development of CS terminations in cats. We continuously infused muscimol unilaterally into sensorimotor cortex to silence neurons during the postnatal CS refinement period (weeks 3–7). Using anterograde transport of WGA-HRP, we examined the laterality of terminations from the muscimol-infused (i.e., silenced) and active sides in the spinal cord, as well as in the cuneate nucleus and red nucleus. We found that CS terminations from the muscimol-infused cortex were very sparse and limited to the contralateral side, while those from the active cortex maintained an immature bilateral topography. Controls (saline infusion, noninfusion) had dense, predominantly contralateral, CS terminations. There was a substantial decrease in the spinal gray matter area occupied by terminations from the side receiving the blockade and a concomitant increase in the area occupied by ipsilateral terminations from the active cortex. Optical density measurements of HRP reaction product from the active cortex in muscimol-infused animals showed substantial increases over controls in the ratio of ipsilateral to contralateral CS terminations for all laminae examined (IV–V, VI, VII). Our findings suggest that ipsilateral dorsal horn terminations reflect new axon growth during the refinement period because they are not present there earlier in development. Those in the ventral horn are present earlier in development and thus could reflect maintenance of transient terminations. Increased ipsilateral terminations from active cortex were due to recrossing of CS axons in lamina X and not to an increase in labeled CS axons in the ipsilateral white matter. Examination of brain stem terminations suggested that, between postnatal weeks 3 and 7, development of corticocuneate terminations also is activity-dependent but that development of corticorubral terminations is not. Activity-dependent CS development is a plausible mechanism by which early motor experiences could shape the anatomical and functional organization of the motor systems during a critical postnatal period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050673
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  • 7
    Electronic Resource
    Electronic Resource
    Saccades and multisaccadic gaze shifts are gated by different pontine omnipause neurons in head-fixed cats (1999)
    Springer
    Experimental brain research 125 (1999), S. 287-301 
    Details
    ISSN: 1432-1106
    Keywords: Key words Omnipause neurons ; OPN ; Saccade ; Gaze shift ; Tracking ; Perisaccadic drifts ; Moving target ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Pontine omnipause neurons (OPNs) have so far been considered as forming a homogeneous group of neurons whose tonic firing stops during the duration of saccades, when the head is immobilized. In cats, they pause for the total duration of gaze shifts, when the head is free to move. In the present study, carried out on alert cats with fixed heads, we present observations made during self-initiated saccades and during tracking of a moving target which show that the OPN population is not homogeneous. Of the 76 OPNs we identified, 39 were found to have characteristics similar to those of previously described neurons, ”saccade” (S-) OPNs: (1) the durations of their pauses were significantly correlated with the durations of saccades; (2) the discharge ceased shortly before saccade onset and resumed before saccade end; (3) visual responses to target motion were excitatory; and (4) during tracking, S-OPNs interrupted the discharge for the duration of saccades and resumed firing during perisaccadic ”drifts”. However, the characteristics of 37 neurons (”complex” (C-) OPNs) were different: (1) the pause duration was not correlated with the duration of self-initiated saccades; (2) time lead of pause onsets relative to saccades was, on average, longer than in the group of S-OPNs, and firing resumed after the saccade end; (3) visual target motion suppressed tonic discharges; and (4) during tracking, firing was interrupted for the total duration of gaze shifts, including not only saccades but also perisaccadic ”drifts”. We conclude that cat OPNs can be subdivided into two main groups. The first comprises neurons whose firing patterns are compatible with gating individual saccades (”saccade” OPNs). The second group consists of ”complex” OPNs whose firing characteristics are appropriate to gate total gaze displacements rather than individual saccades. The function of these neurons may be to disinhibit pontobulbar circuits participating in the generation of saccade sequences and associated perisaccadic drifts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050685
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  • 8
    Electronic Resource
    Electronic Resource
    Saccular and utricular inputs to sternocleidomastoid motoneurons of decerebrate cats (1999)
    Springer
    Experimental brain research 126 (1999), S. 410-416 
    Details
    ISSN: 1432-1106
    Keywords: Key words Vestibulocollic reflex ; Saccular nerve ; Utricular nerve ; Sternocleidomastoid motoneuron ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Connections from the otolithic organs to sternocleidomastoid (SCM) motoneurons were studied in 20 decerebrate cats. The electrical stimulation was selective for the saccular or the utricular nerves. Postsynaptic potentials were recorded from antidromically identified SCM motoneurons; these muscles participate mainly in neck rotation and flexion. Partial transections of the brainstem at the level of the obex were performed to identify the possible pathway from the otolithic organs to the SCM motoneurons. Saccular or utricular nerve stimulation mainly evoked inhibitory postsynaptic potentials (IPSPs) in the ipsilateral SCM motoneurons. Some of the sacculus-induced IPSPs were preceded by small-amplitude excitatory PSPs (EPSPs). The latencies of the PSPs ranged from 1.8 to 3.1 ms after saccular nerve stimulation and from 1.7 to 2.8 ms after utricular nerve stimulation, indicating that most of the ipsilateral connections were disynaptic. In the contralateral SCM motoneurons, saccular nerve stimulation had no or faint effects, whereas utricular nerve stimulation evoked EPSPs in about two-thirds of neurons, and no visible PSPs in about one-third of neurons. The latencies of the EPSPs ranged from 1.5 to 2.0 ms, indicating the disynaptic connection. Thus, the results suggest a difference between the two otolithic innervating patterns of SCM motoneurons. After transection of the medial vestibulospinal tract (MVST), saccular nerve stimulation did not evoke IPSPs at all in ipsilateral SCM motoneurons, but some (11/40) neurons showed small-amplitude EPSPs. Most (24/33) of the utricular-activated IPSPs disappeared after transection, whereas the other 9 neurons still indicated IPSPs. In the contralateral SCM motoneurons, no utricular-activated EPSPs were recorded after transection. These MVST transection results suggest that most of the otolith-SCM pathways are located in the MVST at the obex level. However, the results also suggest the possibility that other otolith-SCM pathways exist at the obex level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050747
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  • 9
    Electronic Resource
    Electronic Resource
    The dynamics of the vestibulo-ocular reflex after peripheral vestibular damage I. Frequency-dependent asymmetry (1999)
    Springer
    Experimental brain research 125 (1999), S. 353-364 
    Details
    ISSN: 1432-1106
    Keywords: Key words Vestibulo-ocular reflex ; Vertigo ; Labyrinthectomy ; Compensation ; Motor learning ; Oculomotor ; Plasticity ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Accurate performance by the vestibulo-ocular reflex (VOR) is necessary to stabilize visual fixation during head movements. VOR performance is severely affected by peripheral vestibular damage; after one horizontal semicircular canal is plugged, the horizontal VOR is asymmetric and its amplitude is reduced. The VOR recovers partially. We investigated the limits of recovery by measuring the VOR’s response to ipsilesional and contralesional rotation after unilateral peripheral damage in cats. We found that the VOR’s response to rotation at high frequencies remained asymmetric after recovery was complete. When the stimulus was a pulse of head velocity comprising a dynamic overshoot followed by a plateau, gain was partially restored and symmetry completely restored within 30 days after the plug, but only for the plateau response. The overshoot in eye velocity remained asymmetric. The asymmetry was independent of stimulus velocity throughout the known linear velocity range of primary vestibular afferents. Sinusoidal rotation at 0.05–8 Hz revealed that, within this range, the persistent asymmetry was significant only at frequencies above 2 Hz. Asymmetry was independent of the peak head acceleration over the range of 50–500°/s2. When both horizontal canals were plugged, a small residual VOR was observed, suggesting residual signal transduction by plugged semicircular canals. However, transduction by plugged canals could not explain the enhancement of the VOR gain, at high frequencies, for rotation away from the plugged side compared with rotation toward the plug. Also, the high-frequency asymmetry was present after recovery from a unilateral labyrinthectomy. These results suggest that high-frequency asymmetry after unilateral damage is not due to residual function in the plugged canal. The findings are discussed in the context of a bilateral model of the VOR that includes central filtering.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050691
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  • 10
    Electronic Resource
    Electronic Resource
    The neural substrate of the vestibulocollic reflex (1999)
    Springer
    Experimental brain research 129 (1999), S. 483-493 
    Details
    ISSN: 1432-1106
    Keywords: Key words Vestibulocollic reflex ; Short-latency pathways ; Vestibulospinal and reticulospinal pathways ; Cat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The purpose of this review is to assess the role of short-latency pathways in the vestibulocollic reflex (VCR). First the current knowledge about the disynaptic and trisynaptic pathways linking semicircular canal and otolith afferents with cat neck motoneurons is summarized. We then discuss whether these pathways are sufficient or necessary to produce the responses observed in neck muscles by natural vestibular stimulation and conclude that they are neither. Finally, alternate pathways are considered, most likely involving reticulospinal fibers, which are an important part of the neural substrate of the VCR.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050918
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  • 11
    Electronic Resource
    Electronic Resource
    Masthead (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999) 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330101
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  • 12
    Electronic Resource
    Electronic Resource
    Projektionsversuche mit dem Diaprojektor (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 45-50 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A variety of demonstration experiments can be shown to a large audience with a minimum amount of chemicals by using an ordinary slide projector and easily mounted cuvettes. A detailed instruction for assembling the cuvettes is given as m d l as examples for suitable demonstration experiments in general, inorganic, organic and physical chemistry.
    Additional Material: 21 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330106
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  • 13
    Electronic Resource
    Electronic Resource
    Wer und was ist es? (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 61-61 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330111
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  • 14
    Electronic Resource
    Electronic Resource
    Dokumentation (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 66-66 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330114
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  • 15
    Electronic Resource
    Electronic Resource
    Rückblick (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 67-67 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330117
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  • 16
    Electronic Resource
    Electronic Resource
    Masthead (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999) 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330201
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  • 17
    Electronic Resource
    Electronic Resource
    Umweltprobenbanken-eine wichtige Säule der Umweltbeobachtung (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 95-103 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Natural events as well as human activities are affecting the environment and even with largescale monitoring programs it is not possible to completely assess the state of the environment. But a documentation of the environmental status with respect to its chemical composition can be realized with systematically collected representative environmental samples, which can be stored for decades at very low temperatures almost without degradation. Such ‘banking activity’ allows a current environmental monitoring and also a retrospective analysis for the determination of components which have not been analyzed at the time of sampling because of ta lack in analytical techniques or because they have not been known or considered environmentally relevant. The concept of environmental specimen banking and general procedures are described. Various examples illustrate the many facets of such activities.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330205
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  • 18
    Electronic Resource
    Electronic Resource
    Jobsuch auf dem Internet (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 128-128 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Arbeitsmarktsituation in der Chemie hat sich in den letzten Jahren spürbar entspannt. Dennoch gibt es auf etlichen, nicht hundertprozentig dem Trend der Zeit entsprechenden Spezialgebieten immer noch einen beträchtlichen Überhang an Stellensuchenden. Entsprechende Mobilität vorausgesetzt, kann das Internet bei der Stellensuche hilfreich sein.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330210
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  • 19
    Electronic Resource
    Electronic Resource
    Rückblick (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 135-135 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330215
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  • 20
    Electronic Resource
    Electronic Resource
    Masthead (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999) 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330301
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  • 21
    Electronic Resource
    Electronic Resource
    Quantenchemie auf dem Internet (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 165-166 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330306
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  • 22
    Electronic Resource
    Electronic Resource
    Die Rolle des Aerosols im Klimasystem (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 158-164 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Atmospheric aerosol particles cause one of the largest uncertainties in estimates of human influence on climate - a good reason to take a closer look at the atmospheric life cycle of the aerosols and its effects. Besides a number of primary and secondary natural aerosol sources we need to consider since the beginning of industrialisation strong manmade particle sources. During its residence in the atmosphere the aerosol interacts in many physical and chemical ways with other atmospheric trace substances, most importantly with water vapor and its liquid and solid phases. Through its direct effect on solar and thermal radiation and through its influence on clouds the atmospheric aerosol exerts a climate forcing. To data we cannot predict the ensuing climate response because of our limited understanding of essential atmospheric processes and of the many possible feedbacks within the climate system. However, already our present knowledge of the role of the atmospheric aerosol in the climate system makes strictly global views of anthropogenic climate changes questionable.
    Notes: Der Stand unseres Wissens zum Kreislauf des Atmosphärischen Aerosols und von seiner Rolle im Klimasystem läßt sich wie folgt zusammenfassen: 1Unser Verständnis des globalen Aerosolkreislaufs und vor allem des menschlichen Eingriffs in denselben ist noch sehr unvollständig. Dies gilt in hohem Maße auch für die mit diesem Kreislauf verbundenen chemischen Mehrphasenprozesse.2Ein negativer direkter Klimaantrieb anthropogener Aerosole existiert über die Streuung und Absorption, hat aber noch große Unsicherheiten und kann über hoch mit Rußpartikeln belasteten Gebieten auch positive Werte annehmen.3Ein indirekter Klimaantrieb anthropogener Aerosole existiert wahrscheinlich und hat ebenfalls ein negatives Vorzeichen. Seine Größenordnung und Unsicherheiten lassen sich noch nicht quantifizieren.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330305
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    Electronic Resource
    Welche Bedeutung haben Theoretische Konzepte in der Chemie? (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 177-185 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chemical concepts are important to gain a qualitative understanding of chemistry. They are needed to find interesting questions to which experimental research as well as quantum-chemical investigations and computer simulations can contribute. We point out why chemical concepts should be seen as an important and from fundamental physical theories to a certain degree independent part of chemistry. An overview and analysis of some concepts - which are often introduced only in connection with special examples instead of a discussion for their own sake - are given. We take a closer look at some concepts to illustrate our assertions. An analysis of the stability of the cyclic (MoNL3)-trimer demonstrates how these concepts work and what they can tell us about this special case.
    Notes: Wir haben versucht, deutlich zu machen, wie wichtig theoretische Konzepte in der Chemie sind. Dabei gelangen wir zu folgenden Schlußfolgerungen über die Konzepte, die in der Chemie herangezogen werden, um Beobachtungen zu deuten und zu verstehen: Qualitativ chemische Konzepte sind für ein Verständnis der Chemie unverzichtbar. Eine quantenchemische Berechnung liefert nicht automatisch Verständnis und Einordnung in einen Gesamtzusammenhang.Erst die vereinfachende Beschreibung chemischer Konzepte ermöglicht eine unmittelbare Diskussion chemischer Fragestellungen.Die Konzepte sind trotz grundlegender physikalischer Theorien bis zu einem gewissen Grade eigenständig.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330312
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  • 24
    Electronic Resource
    Electronic Resource
    Masthead (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999) 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330401
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  • 25
    Electronic Resource
    Electronic Resource
    Hundert Jahre Aspirin® (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 213-220 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The article commemorates the centenary of the protection of the proprietary mine of Aspirin. The early medicinal uses of salicylic acid derivatives in herbal remedies arc summarised as well as the biosynthesis of these derivatives. The history of the synthesis of salicylic acid and of acetyl salicylic acid (ASS) is described in detail as is the discovery of additional therapeutic applications and the basic pharmacology of ASS.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330406
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  • 26
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    Electronic Resource
    Internet-Werkzeuge für die Zusammenarbeit zwischen Chemikern (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 234-235 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330409
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  • 27
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    Electronic Resource
    Alchemie. Lexikon einer hermetischen Wissenschaft. Herausgegeben von Claus Priesner und Karin Figala. Verlag C. H. Beck, München 1998. 412 S., 40 Abb., Leinen, DM 68,-. ISBN 3-406-44104-8 (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 239-240 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330412
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  • 28
    Electronic Resource
    Electronic Resource
    Dokumentation (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 246-246 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330417
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  • 29
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    Electronic Resource
    Editorial (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 250-250 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330502
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  • 30
    Electronic Resource
    Electronic Resource
    ChiuZ aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 308-309 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330508
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    Electronic Resource
    Electronic Resource
    Wer und was ist es? (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 312-312 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330511
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  • 32
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    Electronic Resource
    Impressum (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 314-314 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330514
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  • 33
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    Electronic Resource
    Literaturkarusell. Chemie (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. IX 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330518
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    Electronic Resource
    Editorial (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 318-318 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330602
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  • 35
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    Electronic Resource
    Chemische Biologie (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 354-358 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chemical Biology is a rapidly growing field at the interface of organic chemistry and cell biology. Chemical strategies are used to address biological questions not amenable to traditional genetic and biochemical techniques alone. Thc enormous potential of Chemical Biology is illustrated by four recent examples.
    Notes: Chemische Biologie ist eine junge Forschungsrichtung im Grenzgebiet zwischen Organischer Cherme und Zellbiologie, welche aus einem Bedarf nach neuen Techniken zur Untersuchung zellbiologischer Mechanismen entstanden ist. Chemische Methoden werden mit biochemischen und molekularbiologischen Methoden kombiniert, um neuartige Möglichkeiten für die biologische Grundlagenforschung zu schaffen. So werden synthetische Oligosaccharide kovalent an die Oberfläche lebender Zellen gebunden, die Konzentration von Calciumionen im Zytosol künstlich reguliert und Rezeptoren künstlich aktiviert.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330606
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    Electronic Resource
    Elektrosynthesen. Strom doppelt genutzt: Erste technische „Paired Electrosynthesis“ (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 373-374 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Eine neue Elektrosynthese erfüllt erstmals den Traum der Elektrochemiker, gleichzeitig Anoden- und Kathodenreaktion für organische Synthesen technisch zu nutzen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330610
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  • 37
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    Electronic Resource
    Experimente für die Chemie (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 377-377 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330614
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  • 38
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    Electronic Resource
    Persistenz und Reichweite von Umweltchemikalien. Von M. Scheringer. Wiley-VCh, Weinheim 1999.XIII + 208 Abb.,17Tab., gebunden, DM 158,-.ISBN 3-527-29752-9 (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 380-380 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330618
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  • 39
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    Electronic Resource
    Vorbereitungen für die Jahrtausend-Party (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 382-384 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Around the world, BASF has been preparing for Y2K since 1996. The Information services and the Process Control Technology divisions, as well as embedded systems and logistics, not to mention the company's customers and suppliers have all been systenmatically tested for Y2K capability. In addition, special precautionary measures in particular, at large Verbund sites - will be in place during the switchover period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330621
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  • 40
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    Electronic Resource
    Editorial (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 4-4 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330102
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  • 41
    Electronic Resource
    Electronic Resource
    Andere iu Z-Zeitschriften (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 66-66 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330115
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  • 42
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    Electronic Resource
    Gentechnik in der Schule (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 104-109 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The Fonds of German Chemical Industry (FCI) has produced an instrumental kit named „Blue Genes“ which enables High School teachers to perform in their school environment basic experiments of gene analysis and cloning. In particular, the kit contains all necessary equipment and reagents to perform a restriction analysis, and cloning and expression of a bacterial gene.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330206
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  • 43
    Electronic Resource
    Electronic Resource
    Chemie der Wunder (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 152-157 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A few physical phenomena believed to be religious miracles are considered, and scientific explanations for them are proposed.
    Notes: Einige physikalische Phänomene, von denen man glaubte, sie seien religiöse Wunder, werden vorgestellt und wissenschaftliche Erklärungen hierfür vorgeschlagen.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330304
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  • 44
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    Electronic Resource
    Wer und was ist es? (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 173-173 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330308
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  • 45
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    Lebensgeschichten. Sternstunden der frühen Chemie von Johann Rudolph Glauber bis Justus von Liebig. Von Ernst F. Schwenk. Beck'sche Reihe 1252, Verlag C. H. Beck, München 1998. 288 S., 42 s/w-Abb., Paper-back, DM 19,80. ISBN 3-406-42052-4 (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 176-176 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330311
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  • 46
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    Literaturkarusell. Interdisziplinäres (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. VIII 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330517
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  • 47
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    Literaturkarusell. Pharmazie (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. XIV 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330520
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  • 48
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    Kupfer  -  Die biochemische Bedeutung eines Metalls (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 334-341 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The essential trace element copper plays a key role in living systems. Its metalloproteins are involved in various reactions. The IT ononuclear blue copper type-1 proteins take, part in electron transfer processes. Type-2 proteins can either act as oxidases, oxygenases, dioxygenases, or superoxide dismutases, containing one copper core. Dinuclear copper centers of Type-3 proteins are the oxygen transport system hemocyanin, oxidases and oxygenases. Due to this variety of functions copper deficiency and also abundance can cause severe damage of any life form.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330604
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    Fritz Haber, Carl Bosch und Friedrich Bergius  -  Protagonisten der Hochdrucksynthese (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 359-364 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: It is tried to fix the limits between the notions high pressure synthesis and high temperature chemistry. The work of Fritz Haber to apply high pressure to synthetise ammonia and of Friedrich Bergius to liquify coal to synthetise petrol is described. Special attention is given to the merits of Carl Bosch and his coworkers at BASF for applying the high pressure synthesis into industrial scale. The consequences of thc work of Haber, Bergius und Bosch on chemistry, social and political life and their importance for the present are considered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330607
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  • 50
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    Bakterien, Viren, Prionen (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 376-376 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330613
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  • 51
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    Dokumentation (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 390-390 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330622
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  • 52
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    Von Biomineralien zu biomimetischen Materialien: Der Weg ist das Ziel (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 6-19 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Diatoms are unicellular organisms which possess a unique silicified cell wall. Their intricate structures have inspired the imagination of naturalists and scientists throughout centuries. However, molecular biological details about silica metabolic pathways still are obscure. To find out how soft matter can selforganize and create finite solid shapes and complex patterns is certainly one of the most challenging scientific problems today. Especially chemists just have started to unravel the mysteries of chemical morphogenesis.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330103
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  • 53
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    ChiuZ aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 58-60 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330108
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    Chemie im Selbststudium. Grundkurs Chemie I. Allgemeine und Anorganische Chemie. Von Arnold Arni. überarb. Aulf. 3., überarb. Aufl., WILEY-VCH, Weinheim 1998. XIV + 350 S., 66 Abb., 15 Tab., Broschur, DM 54,-. ISBN 3-527-29542-9. Grundkurs Chemie II. Organische Chemie. 2., überarb. Aufl. WILEY-VCH, Weinheim 1998. XIII + 198 S., 16 Abb., 5 Tab., Broschur, DM 48,-. ISBN 3-527-29562-3 (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 60-61 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330110
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    Impressum (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 66-66 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330116
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    Editorial (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 70-70 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330202
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    Wissenschaft aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 122-125 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330208
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  • 58
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    Dokumentation (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 134-134 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330212
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  • 59
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    Impressum (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 134-134 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330214
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  • 60
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    Literaturkarusell. Chemie (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. X 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330218
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  • 61
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    Editorial (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 138-138 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330302
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  • 62
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    ChiuZ aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 174-175 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330309
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  • 63
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    Chemie mit Licht. Photochemie. Von D. Wöhrle, M.W. Tausch und W.-D. Stohrer. WILEY-VCH, Weinheim 1998. XVI, 253, S., 169 Abb., 39 Tab., Broschur, DM 128,-.ISBN 3-527-29545-3 (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 175-176 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330310
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  • 64
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    Editorial (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 190-190 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330402
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  • 65
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    Sandwich-artige Cyclopentadienylkomplexe von Hauptgruppenelementen (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 342-353 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Cyclopentadienyl (Cp) complexes of maingroup elements are classified and compared in terms of structural types, bonding features, and characteristic reactions. Halfsandwich, sandwich and multidecker sandwich arrangements of different type are observed including cluster species with weak or strong metal-metal bonds. The Cp-El bonding ranges from mainly covalent to purely ionic with important structure-determining intermolecular contacts in the latter. π-Complexation allows the stabilisation of compounds with low-valent elements such as AI(I), Ga(I), and Si(I1). Important reaction principles and applications are shortly described.
    Additional Material: 19 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330605
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  • 66
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    Wissenschaft aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 367-372 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330608
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  • 67
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    ChiuZ aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 375-375 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330612
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  • 68
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    Schreiben und publizieren in den naturwissenschaften. Vin H.F.Ebel u C. Bliefert. 4., völlig neu bearb. Aufl., WILEY-VCh, Weinheim 1988.XIV + 550 s., Broschur, Dm 68,-ISBN 3-527-29626-3 (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 378-379 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330615
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  • 69
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    Wer war es? (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 381-381 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330620
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  • 70
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    Andere iu Z-Zeitschriften (1999)
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    Chemie in unserer Zeit 33 (1999), S. 390-390 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330623
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  • 71
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    Wissenschaft aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 53-58 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330107
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  • 72
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    Koffeinschub für Chemie-Applets im WWW (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 62-63 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330112
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    Wer war es? (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 129-129 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330211
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  • 74
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    Andere iu Z-Zeitschriften (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 134-134 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330213
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  • 75
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    Literaturkarusell. Biologie (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. V 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330216
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  • 76
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    Literaturkarusell. Physik (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. VIII 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330217
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  • 77
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    Impressum (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 186-186 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330315
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  • 78
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    Methyltrioxorhenium (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 192-198 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330403
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  • 79
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    Molekulare Aspekte des Alterns (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 221-225 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In the last decade, major advances in the understanding of the biology of aging were made. Studies in worms, flies and yeast led to the identification of several life-extending genes. In mammals, two genes were found which, when mutated, shorten life span. Previous studies in rodents reporting life span prolongation by caloric restriction were confirmed and extended to lower organisms. The studies arc consistent with and supportive of the free radical theory of aging, which secs reactive oxygen species as the main contributor to aging. A refinement of this theory puts mitochondrial DNA into the center of the aging process. It appears that mitochondrial DNA may be both, a yardstick for the biological age and a signalling device to tell the organism when to die. A diet low in calories and high in antioxidants promises to lead to a better quality of life at old age and possibly to increased life span for humans.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330407
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    ChiuZ aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 237-239 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330411
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    Radikale und Radikalionen in der Organischen Synthese. Von Torsten Linker und Michael Schmittel. WILEY-VCH, Weinheim 1998. 421 S., DM 88,-. ISBN 3-527-29492-9 (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 241-241 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330415
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  • 82
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    Impressum (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 247-247 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330419
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  • 83
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    Wiederaufladbare Batterien (1999)
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    Chemie in unserer Zeit 33 (1999), S. 252-266 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: This first part of „Rechargeable Batteries“ is devoted to materials and reactions in batteries with aqueous electrolytes. Lead-acid, nickelcadmium, nickel-metal hydride, and various zinc systems, such as zinc-manganese oxide, zinc-air, and zinc-bromine cells are discussed. Special attention is paid to the limited electrochemical stability window of the aqueous electrolytes, which enables overcharge and overdischarge protection of the battery but limits cell voltages to less than 2 Volts. In the following part of this article we will focus on nonaqueous electrolyte-based rechargeable batteries. Due to thc wider electrochemical stability window of these electrolytes high specific charge and high cell voltage batteries can be realized, e.g., the „4 V“ lithium ion cell.
    Additional Material: 19 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330503
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    Wissenschaft aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 304-308 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330507
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  • 85
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    Dokumentation (1999)
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    Chemie in unserer Zeit 33 (1999), S. 314-314 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330512
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    Chemie erlebt - 50 jahre GDCH. Hrsg. von der Gesellschaft Deutscher Chemiker. Das Buch ist im Eigenverlag erschienen und kann bei der Gesellschaft Deutscher Chemiker, Abteilung Öffentlichkeitsarbeit, Postfach 900440,60444 Frankfurt/M bestellt werde,304 S., Dm 39,-ISBN 3-924763-79-8 (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 379-380 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330616
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  • 87
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    Impressum (1999)
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    Chemie in unserer Zeit 33 (1999), S. 390-390 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330624
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  • 88
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    Feste Lösungen (1999)
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    Chemie in unserer Zeit 33 (1999), S. 33-44 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Solid solutions arc an area of inorganic chemistry that encompasses a wide variety of natural and synthetic compounds. This article is intended to be a selection of interesting examples which illustrate the importance of solid solutions in everyday life and industrial applications. A short discussion of the theoretical background is given, followed by the description of solid solutions of non-metals in metals such as steel. Furthermore, solid solutions with important optical (e.g. laser materials) and electrical properties (e.g. β-alumina) are discussed, referring to their chemical structure and technological relevance.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330105
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  • 89
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    ChiuZ aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 126-127 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330209
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  • 90
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    Primärprozesse der Photosynthese und ihre Modellierung (1999)
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    Chemie in unserer Zeit 33 (1999), S. 72-83 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Photosynthesis is one of the most fascinating fields of current interdisciplinary research. It seems miraculous that Nature, in the process of evolution, has managed to bring about a 100% quantum yield in charge separation occurring in the primary processes within the photosynthetic reaction centers. In fact, wasteful deactivation of the photoexcited electronic states into the ground state should be favoured and thus prevent charge separation. Biomimetic model compounds have been synthesized, essentially from porphyrins and quinones, resembling the redoxactive cofactors, Nature has developed. The underlying philosophy of this approach is to design and prepare suitable organic molecules allowing the specific properties of the complex electron transfer reactions to be tuned appropriately. Special emphasis is given the through comparison of structures and functions of native and artificial systems. The prominent electron transfer characteristics are discussed in particular by using time-resolved picosecond fluorescence and time-resolved EPR techniques.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330203
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    Literaturkarusell. Pharmazie (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. XI 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330219
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  • 92
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    Literaturkarusell. Inter-disziplinäres (1999)
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    Chemie in unserer Zeit 33 (1999), S. XIII 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330220
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  • 93
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    Biochemische Mechanismen einer einfachen Verhaltensreaktion (1999)
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    Chemie in unserer Zeit 33 (1999), S. 140-151 
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    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In active search for conditions for optimal phototrophic growth, halobacteria respond to light and to a variety of other environmental stimuli by taxis. Light reception is mediated by sensory rhodopsins, seven helix transmembrane retinal proteins that are stably complexed to specific MCP-related transducer proteins. Photoisomerization of the retinal chromophore generates a steric signal which activates the sensory rhodopsin-transducer-complex. Complex activation is relayed to a two component signaling system and transiently changes the cytoplasmic concentration of fumarate which, together with the small cytoplasmic protein CheY controls flagellar motor switching. Dual signaling by CheY and fumarate was also found in Escherichia coli where it mediates metabolic signaling and taxis in cells with disabled two-component system. Sensory integration of different environmental stimuli occurs at the level of the signaling domains of several stimulus-specific transducers constructed through combination of appropriate molecular modules. Irrespective of the complexity of the signaling network, the response to light is quantitatively predictable and stochastic. Its kinetic analysis suggests that time-dependent changes in the activity of signaling components can be resolved even in the context of a complex molecular network.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330303
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  • 94
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    Wissenschaft aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 167-172 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330307
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  • 95
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    Dokumentation (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 186-186 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330313
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  • 96
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    Electronic Resource
    Rückblick (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 187-187 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330316
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  • 97
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    Electronic Resource
    Wissenschaft aktuell (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 228-233 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330408
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  • 98
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    Wiederaufladbare Batterien (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 320-332 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: As a matter of fact, most of our technical electrochemical energy storage systems operate outside the limitations of thermodynamics. As in the case of rechargeable batteries with aqueous electrolytes (part I of this article), kinetics control the operation and safety also in batteries with nonaqueous electrolytes (this second and final part).A striking example is the lithium ion battery which possesses an operating voltage of 〉3,5 V and a very high energy density. From a thermodynamic viewpoint such a cell is impossible because the used organic electrolyte is in contact with two lithium insertion electrodes that operate at extreme reducing and oxidizing potentials, respectively. However, a unique mechanism kinetically prevents the decomposition of the electrolyte due to the formation of electronically insulating interphases between electrode and electrolyte that are still permeable to the electrochemically active Li+ cations. Lithium ion batteries have already made their breakthrough into the market as small format systems for portable electronics. The only „kinetically shielded“ high energy density, however, might be a safety complication for large format batteries, which are assembled for electric vehicle (EV) propulsion. Safety concerns are also valid for high temperature (300°C) batteries such as the sodium-sulfur and sodium-nickel chloride systems. These systems are still in the stage of „experimental batteries“, which may find future application in large units for EV's or uninterruptible power systems. The paper is concluded by a performance comparison of various rechargeable battery systems with aqueous and nonaqueous electrolytes. (Possible) applications in consumer electronics and EV's are discussed in more detail.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330603
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  • 99
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    Pflanzeninhaltsstoffe. Chemische Abschreckung von Fraßinsekten (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 372-372 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330609
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  • 100
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    Electronic Resource
    Rückblick (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 391-391 
    Details
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ciuz.19990330625
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