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  • ZIB Catalog
  • Articles: DFG German National Licenses  (77,120)
  • 1995-1999  (40,625)
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  • Insulin
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  • ZIB Catalog
  • Articles: DFG German National Licenses  (77,120)
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Insulin-induzierte Hypoglycaemia factitia aus diätetischen Gründen (1999)
    Springer
    Rechtsmedizin 9 (1999), S. 190-192 
    Details
    ISSN: 1434-5196
    Keywords: Key words Hypoglycaemia factitia ; Insulin ; Diet ; Lethal outcome ; Schlüsselwörter Hypoglykaemia factitia ; Insulin ; Diät ; Tödlicher Verlauf
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Wir berichten über den Fall einer 28jährigen, nicht insulinpflichtigen nicht-Diabetikerin, in deren Anamnese eine hypoglykaemische Episode vor dem Todeseintritt bekannt wurde. Autoptisch wurde eine (heimliche) Applikation von Insulin durch letal hohe Insulinspiegel im zentralen und peripheren Blut mit Hypoglykaemie diagnostiziert. Nach der Anamnese, den Ergebnissen des Ermittlungsverfahrens und der Autopsie konnte die Applikation von Insulin aus suizidaler und homizidaler Absicht oder im Rahmen eines Münchhausen-Syndroms ausgeschlossen werden. Vielmehr handelte es sich in der Gesamtschau um eine Hypoglykaemia factitia aus diätetischen Gründen.
    Notes: Abstract The medical history of a 28-year-old non-insulin-dependent and non-diabetic patient with a hypoglycaemic episode before death is reported. At autopsy, an (surreptious) insulin administration was documented by lethally high serum insulin in central and peripheral blood during hypoglycaemia, According to the anamnesis, the judical inquiry and the autopsy findings, a suicidal intent, murder by insulin or Munchhausen-syndrome could be excluded. We therefore diagnosed a hypoglycaemia factitia caused by the diet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001940050107
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  • 2
    Electronic Resource
    Electronic Resource
    Increased glucagon-stimulated insulin secretion of cryopreserved rat islets transplanted into nude mice (1999)
    Springer
    Journal of molecular medicine 77 (1999), S. 107-110 
    Details
    ISSN: 1432-1440
    Keywords: Key words Pancreatic islet transplantation ; Cryopreservation ; Conservation ; Insulin ; Nude mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Cryopreservation is the only available technique for long-term storage of pancreatic islets. The freezing/thawing protocol may cause considerable loss of viable islet tissue and impair its function in vivo. The aim of this study was to investigate glucose and insulin levels after transplantation of fresh and cryo/thawed rat islets. Rat pancreatic islets were isolated following intraductal collagenase injection and Ficoll gradient purification. After isolation, islets were cultured for 24 h and then either transplanted or frozen after stepwise addition of DMSO according to Rajotte et al. and stored in liquid nitrogen. After rapid thawing islets were stepwise transferred into RPMI medium and cultured for another 24 h. The recipients were athymic mice with streptozotocine-induced diabetes. Two hundred fresh (n=13) or cryo/thawed (n=15) islets were transplanted beneath the renal capsule. Glucose levels were measured for 14 days and blood samples for insulin determination were obtained 15 min after i.p. glucagon (10 mg/kg) administration on day 14. Glucose levels were normalized (〈9 mmol/l) in all recipients within 3 days since transplantation. On day 14, mean fasting values±SE in fresh and cryo/thawed islet groups were 4.0±0.6 and 4.4±0.4 mmol/l, respectively (P〉0.05). Fasting insulin levels were higher in the cryo/thaw than in the fresh islet group (1.67±0.33 vs 0.57±0.13 ng/ml; P〈0.01). Post-glucagon levels did not differ significantly (1.45±0.24 vs 0.86±0.24 ng/ml; P=0.06). While glucagon significantly increased insulin levels (P〈0.01) in the fresh islet group, no change in insulin levels was observed (P〉0.05) in the cryo/thaw group. Immunohistochemical staining demonstrated fragmentation of viable islet tissue which was more apparent in the cryo/thaw group. We conclude that in a short-term study cryo/thawed rat islets produce higher insulin levels than fresh islets transplanted into nude mice. This may be due to better islet survival or loss of feed-back regulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001090050313
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  • 3
    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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  • 4
    Electronic Resource
    Electronic Resource
    Nutrient-dependent distribution of insulin and glucokinase immunoreactivities in rat pancreatic beta cells (1999)
    Springer
    Virchows Archiv 434 (1999), S. 75-82 
    Details
    ISSN: 1432-2307
    Keywords: Key words Rat ; Pancreatic beta cell ; Insulin ; GLUT2 glucose transporter ; Glucokinase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Functional heterogeneity among pancreatic beta cells is a characteristic feature of the islets of Langerhans. Under physiological conditions, beta cells in the pancreas of fed rats exhibited heterogeneous immunohistochemical staining for insulin and glucokinase. Intracellular beta cell glucokinase staining was either faint or dense. In the pericapillary space beta cell glucokinase immunoreactivity had a polar orientation, with the highest density in cytoplasmic regions close to the blood vessels. Starvation resulted in a loss of heterogeneity with homogeneous insulin staining in all beta cells of the islets, and this was accompanied by a loss of heterogeneous glucokinase staining. The intracellular polarity of glucokinase staining in contact to blood vessels also disappeared after starvation. Refeeding resulted in the reappearance of intercellular heterogeneity. In dependence on the functional demand, the endocrine pancreas recruited insulin from beta cells according to a well-defined hierarchy, with an initial preferential mobilization of medullary beta cells. In the course of this process intracellular polarity of glucokinase staining reappeared in areas of the beta cell with functional contact to the GLUT2 glucose transporter in the plasma membrane. This can be regarded as the morphological correlate of an activation of the glucose signal recognition apparatus. Interestingly, the study also provides evidence that the changes in glucokinase distribution apparently preceded those in insulin distribution, which is in keeping with the central role of glucokinase as the glucose sensor of the pancreatic beta cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004280050308
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  • 5
    Electronic Resource
    Electronic Resource
    Gene transfer into insect brain and cell-specific expression of bombyxin gene (1999)
    Springer
    Development genes and evolution 209 (1999), S. 447-450 
    Details
    ISSN: 1432-041X
    Keywords: Key words Bombyxin ; Insulin ; Bombyx mori ; Electroporation ; Cell-specific expression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A transgene reporter consisting of the bombyxin gene promoter and the green fluorescent protein coding region was introduced into intact brains of the silkworm Bombyx mori by in vitro electroporation. After in vitro culture of the brains, the fluorescence derived from the introduced reporter gene was observed in all cases in eight neurosecretory cells that had previously been identified as bombyxin-producing cells (BPCs). Although the fluorescence was not always observed in all cells, it was specific to BPCs, indicating that the reporter was under the control of the bombyxin gene promoter in a BPC-specific manner. Electroporatical introduction of a reporter gene was therefore found to be a suitable method for analyzing cell-specific expression in intact tissues and to be substitute for germ-line transmission of reporters in the transgenic system. Application of this technique enables us to analyze the cell-specific expression of transgene reporters within a few days and treat more than several dozens of the reporters within 1 month, which is difficult to do with the transgenic system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004270050277
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  • 6
    Electronic Resource
    Electronic Resource
    Interleukin-1β-induced nitric oxide synthesis in aortic rings from normal and hyperinsulinaemic rats: effect of physical exercise (1999)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 360 (1999), S. 63-68 
    Details
    ISSN: 1432-1912
    Keywords: Key words Arterial smooth muscle ; Glucose ; Inducible NO synthesis ; Insulin ; Lean and obese Zucker rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Insulin has been suggested to prevent the induction of nitric oxide synthase (NOS) in vitro in arterial smooth muscle, but whether such a mechanism is operative in vivo is not known. Therefore, we evaluated the sensitivity of smooth muscle NOS to induction by interleukin-1β (IL-1β) in aortic rings of lean and obese Zucker rats, a model of experimental hyperinsulinaemia. In order to modulate the insulin and glucose balance of the rats, a 22-week-long treadmill exercise was included in the study. The training attenuated weight gain and reduced blood glucose in the obese and lean rats, whereas the abnormally high plasma insulin of the obese rats remained unaffected. A 6-h incubation of aortic rings with IL-1β (10 ng/ml) increased cyclic GMP in smooth muscle by approximately threefold in all groups, and this effect was prevented by methylene blue. The contractile sensitivity of endothelium-denuded aortic rings to phenylephrine was reduced by incubation with IL-1β (1 ng/ml and 10 ng/ml) in the exercised obese and lean rats, whereas no significant change was observed in the sedentary groups. The aortic maximal contractile force induced by phenylephrine was reduced in sedentary and exercised obese rats by incubation with IL-1β, while no change was detected in the lean rats. The aortic relaxation to exogenous L-arginine was augmented by IL-1β in all groups, while the relaxation sensitivity to L-arginine after induction by IL-1β was enhanced by exercise in the obese but not in the lean rats. Finally, the relaxation to nitroprusside was not significantly affected by IL-1β in any of the study groups. In conclusion, since maximal contractile force generation to phenylephrine was reduced by IL-1β in the obese but not in the lean rats, the sensitivity of NOS to induction by IL-1β was higher in arterial smooth muscle of the obese than the lean Zucker rats. Thus, this model of hyperinsulinaemia was not associated with reduced sensitivity of smooth muscle NOS to induction by IL-1β. Regular exercise did not change plasma insulin concentrations, but it enhanced the action of insulin in both strains as reflected by reduced blood glucose, and increased the sensitivity of smooth muscle NOS to induction by IL-1β.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002109900036
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  • 7
    Electronic Resource
    Electronic Resource
    Forskolin increases apical sodium conductance in cultured toad kidney cells (A6) by stimulating membrane insertion (1999)
    Springer
    Pflügers Archiv 438 (1999), S. 195-204 
    Details
    ISSN: 1432-2013
    Keywords: Key words A6 cells ; Capacitance ; Hormones ; Insulin ; Membrane area ; Membrane traffic ; Renal epithelia ; Water permeability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The role of membrane traffic in the stimulation of apical Na+ permeability caused by increases in cytoplasmic cyclic AMP was assessed by measuring the effects of forskolin on transepithelial capacitance (C T), transepithelial conductance (G T), and short-circuit current (I sc) in A6 cultured toad kidney cells. Apical water permeability was probed by recording cell volume changes after reducing the osmolality of the apical bath. We found that forskolin does not increase the osmotic water permeability of the apical membrane of A6 cells, and thus does not stimulate the insertion of water channels. Comparison of the effects of forskolin and insulin on Na+ transport demonstrated that both agents produce reversible increases in C T, G T and I sc. G T and C T increased proportionally during the rising phase of the insulin response. However, a non-linear relationship between both parameters was recorded when forskolin was given in NaCl Ringer’s solution. The relationship between C T and G T became linear after the effects of forskolin on Cl– conductances were eliminated by substituting Cl– by an impermeant anion. In contrast, in Cl–-containing Na+-free solutions, the non-linearity became more pronounced. Successive additions of insulin and forskolin caused additive increases in C T. Because increases in C T and Na+ transport occurred in the absence of stimulation of water permeability and increases of C T and G T were directly proportional when Na+ was the major permeating ion across the apical membrane, we suggest that the increase in apical Na+ permeability in the presence of either forskolin or insulin is due to the insertion of channels residing in intracellular pools. In contrast, the increased Cl– permeability caused by forskolin may be related to the activation of channels already present in the membrane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004240050898
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  • 8
    Electronic Resource
    Electronic Resource
    Insulin modulation of ATP-sensitive K+ channel of rat skeletal muscle is impaired in the hypokalaemic state (1999)
    Springer
    Pflügers Archiv 437 (1999), S. 235-240 
    Details
    ISSN: 1432-2013
    Keywords: Key words Hypokalaemic periodic paralysis ; ATP-sensitive K+ channels ; Insulin ; Skeletal muscle ; Patch clamp
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  In the present work, we examined the effects of in vivo administration of insulin to rats made hypokalaemic by feeding a K+-free diet. The i.p. injection of insulin in the hypokalaemic rats provoked muscle paralysis within 3–5 h. Consistent with this observation, the skeletal muscle fibres of the paralysed rats were depolarized. In contrast, in the normokalaemic animals, insulin neither provoked paralysis nor produced significant fibre hyperpolarization. In the hypokalaemic rats, insulin almost completely abolished the sarcolemma adenosine triphosphate (ATP)-sensitive K+ currents without altering the sensitivity of the channels to ATP or glibenclamide. In contrast, in the normokalaemic rats, insulin enhanced ATP-sensitive K+ currents that became also resistant to ATP and glibenclamide. Our experiments indicate that the modulation of the sarcolemma ATP-sensitive K+ channels by insulin is impaired in the hypokalaemic state. This phenomenon appears to be related to the fibre depolarization and paralysis observed in the same animals.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004240050774
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  • 9
    Electronic Resource
    Electronic Resource
    Effects of combination of insulin and acarbose compared with insulin and gliclazide in type 2 diabetic patients (1999)
    Springer
    Acta diabetologica 36 (1999), S. 93-97 
    Details
    ISSN: 1432-5233
    Keywords: Key words Type 2 diabetes mellitus ; Insulin ; Acarbose ; Gliclazide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In this prospective study we aimed to compare insulin plus acarbose with insulin plus gliclazide with respect to their effect on insulin requirement, lipid profiles and body mass index (BMI) while achieving good glycemic control. Forty patients with type 2 diabetes mellitus who were on conventional insulin therapy (subcutaneous insulin therapy consisting of regular and NPH insulin, two times a day) were included in the study. They were randomized to double blind treatment with insulin in combination with gliclazide or acarbose for 6 months. For both groups, acceptable glycemic control was achieved at the end of study period. The mean HbA1c levels decreased from 8.32±0.26 to 7.13±0.18% in acarbose group and 8.6±0.15 to 7.48±0.21% in the gliclazide group. The difference between groups was not significant (P 0.29). In the acarbose group, total cholesterol and LDL concentration decreased significantly while other parameters did not change. In the gliclazide group, HDL levels decreased significantly from 46.6±2.48 mg/dl to 41.3±2.09 mg/dl (P 0.001) BMI increased significantly from 27.60±1.21 kg/m2 to 28.69±1.26 kg/m2. (P 0.003) Total daily insulin dose was not changed in the acarbose group significantly, but increased from 42.6±2.73 to 49.27±3.58 U/day, which was significant in gliclazide group of (P 0.016). In the acarbose group, there were no significant differences between responders and nonresponders with respect to fasting and stimulated C-peptide, HbA1c levels and baseline BMI values. But in the gliclazide group, baseline BMI values were significantly higher in the nonresponding group compared to responders (P 0.02). In conclusion, combination of insulin with acarbose can be a good alternative for type 2 diabetic patients on insulin therapy; seems more beneficial than combination with gliclazide; may have advantage of achieving good glycemic control without increasing insulin dose and BMI; also may have the advantage of providing a decrease in LDL level, which are all important to prevent atherosclerosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s005920050151
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  • 10
    Electronic Resource
    Electronic Resource
    Metabolic and ultrastructural effects of cyclosporin A on pancreatic islets (1999)
    Springer
    Transplant international 12 (1999), S. 208-212 
    Details
    ISSN: 1432-2277
    Keywords: Key words Cyclosporin A ; Langerhans ; Insulin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We investigated the effect of different doses of cyclosporin A (CyA) on glucose and insulin levels, as well as its residual effects on pancreatic islets ultrastructure after discontinuation of the drug. We studied four groups of Wistar rats. One control- (n = 5) and three experimental groups, n = 10 each, were treated with different doses of CyA IM for 14 days: group I, 5 mg/Kg; group II, 15 mg/Kg; and group III, 25 mg/Kg. Five animals of each group were sacrificed after 14 days, and the remaining five after 21 days to assess residual CyA effects. On the day of sacrifice, the rats underwent maltose absorption test, and glucose and insulin levels were measured. Pancreatic biopsies were obtained on day 21 to evaluate islets ultrastructure by electron microscopy. As a result, statistically significant, dose dependent (P 〈 0.05) increases in glucose and insulin levels were observed in CyA-treated groups. Groups II and III showed insulin levels significantly higher after fasting (P 〈 0.05) on day 14 comparing to the controls, while in groups I and II values returned to normal after CyA discontinuation. Group III showed persistently increased insulin levels on day 21. Pancreatic ultrastructural changes were observed only in group III. We can conclude that CyA effects on glucose and insulin levels were temporary and reversible at low doses. Ultrastuctural changes in the pancreatic islets may occur with high doses of CyA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001470050212
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  • 11
    Electronic Resource
    Electronic Resource
    Effect of moderate physical activity on plasma leptin concentration in humans (1999)
    Springer
    European journal of applied physiology 79 (1999), S. 331-335 
    Details
    ISSN: 1439-6327
    Keywords: Key words Leptin ; Exercise Energy balance ; Insulin ; Glucocorticoids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In subjects who maintain a constant body mass, the increased energy expenditure induced by exercise must be compensated by a similar increase in energy intake. Since leptin has been shown to decrease food intake in animals, it can be expected that physical exercise would increase energy intake by lowering plasma leptin concentrations. This effect may be secondary either to exercise-induced negative energy balance or to other effects of exercise. To delineate the effects of moderate physical activity on plasma leptin concentrations, 11 healthy lean subjects (4 men, 7 women) were studied on three occasions over 3 days; in study 1 they consumed an isoenergetic diet (1.3 times resting energy expenditure) over 3 days with no physical activity; in study 2 the subjects received the same diet as in study 1, but they exercised twice daily during the 3 days (cycling at 60 W for 30 min); in study 3 the subjects exercised twice daily during the 3 days, and their energy intake was increased by 18% to cover the extra energy expenditure induced by the physical activity. Fasting plasma leptin concentration (measured on the morning of day 4) was unaltered by exercise [8.64 (SEM 2.22) 7.17 (SEM 1.66), 7.33 (SEM 1.72) 1μg · l−1 in studies 1, 2 and 3, respectively]. It was concluded that a moderate physical activity performed over a 3-day period does not alter plasma leptin concentrations, even when energy balance is slightly negative. This argues against a direct effect of physical exercise on plasma leptin concentrations, when body composition is unaltered.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004210050516
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  • 12
    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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  • 13
    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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  • 14
    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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  • 15
    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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  • 16
    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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  • 17
    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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  • 18
    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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  • 19
    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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  • 20
    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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    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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  • 22
    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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  • 23
    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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  • 24
    Electronic Resource
    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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  • 25
    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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  • 26
    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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  • 27
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    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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  • 28
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    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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  • 29
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    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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  • 30
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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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  • 31
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    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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  • 32
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    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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  • 33
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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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  • 34
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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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  • 35
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    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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  • 36
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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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  • 38
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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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  • 39
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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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  • 40
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    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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  • 41
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    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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  • 42
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    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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  • 43
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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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  • 44
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    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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    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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  • 46
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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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  • 47
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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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    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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  • 49
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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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  • 50
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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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    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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  • 52
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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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  • 53
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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 
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    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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    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 
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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.19990330110
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    Impressum (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 66-66 
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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.19990330116
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  • 57
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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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  • 59
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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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  • 60
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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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  • 61
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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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  • 62
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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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  • 63
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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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  • 64
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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 
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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.19990330310
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  • 65
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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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  • 66
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    Sandwich-artige Cyclopentadienylkomplexe von Hauptgruppenelementen (1999)
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    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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    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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  • 68
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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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    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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    Wer war es? (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 381-381 
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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.19990330620
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  • 71
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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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  • 72
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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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  • 73
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    Koffeinschub für Chemie-Applets im WWW (1999)
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    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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    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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    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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    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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  • 78
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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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  • 79
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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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  • 80
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    Molekulare Aspekte des Alterns (1999)
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    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)
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    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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    Impressum (1999)
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    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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  • 84
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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)
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    Chemie in unserer Zeit 33 (1999), S. 304-308 
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    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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    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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  • 88
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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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  • 89
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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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  • 90
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    ChiuZ aktuell (1999)
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    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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  • 91
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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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    Electronic Resource
    Literaturkarusell. Inter-disziplinäres (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. XIII 
    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.19990330220
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  • 94
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    Electronic Resource
    Biochemische Mechanismen einer einfachen Verhaltensreaktion (1999)
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 33 (1999), S. 140-151 
    Details
    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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  • 95
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    Electronic Resource
    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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  • 96
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    Electronic Resource
    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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  • 97
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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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  • 98
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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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  • 99
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    Electronic Resource
    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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  • 100
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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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