107 research outputs found
[Stammbuch Albrecht Daniel Halder]
No full text[STAMMBUCH ALBRECHT DANIEL HALDER]
[Stammbuch Albrecht Daniel Halder] (1)
Cover (1)
Beschreibung (14)
Besitzvermerk (15)
Register (16)
Einträge S. 1 - 50 (20)
Einträge S. 51 - 100 (44)
Einträge S. 101 - 150 (65)
Einträge S. 151 - 200 (86)
Einträge S. 201 - 250 (109)
Einträge S. 251 - 281 (131
[Stammbuch Johann Daniel Halder] / Joannes Daniel Halder
No full text[STAMMBUCH JOHANN DANIEL HALDER] / JOANNES DANIEL HALDER
[Stammbuch Johann Daniel Halder] / Joannes Daniel Halder ( - )
Cover ( - )
Beschreibung, Eintrag von Christian Ulrich Wagner II., Blatt [I]r ([I]r)
Besitzvermerk: Halder, Johann Daniel; Blatt [II]r-[III]r ([I]v-[II]r)
Register über sämtliche hierinn befindliche Namen, Blatt [III]v, [IV]v ([III]v-1)
Cabrera, Juan Simon Henrique de; Blatt 1 ([III]v-1)
Schad, Theodor August; Blatt 2 ( - )
Baldinger, Alexander; Blatt 3 (3v-4r)
Krafft von Dellmensingen, Raymund; Blatt 7 (6v-7r)
Wucherer, Caspar; Blatt 11 (11r)
Guther, David; Blatt 12 (11v-12r)
Stromeyer, Friedrich; Blatt 13 (12v-13r)
Struve, Burkhard Gotthelf; Blatt 14 (13v-14r)
Dietmar, Johann Wilhelm; Blatt 15 (14v-15r)
Wagner, Christoph; Blatt 16 (15v-16r)
Beck, Michael; Blatt 17 (16v-17r)
Roth, Eberhard Rudolph; Blatt 18 (17v-18r)
Ringmacher, Daniel; Blatt 19r (18v-19r)
Frick, Johann; Blatt 19v (19v-20r)
Weyhenmeyer, Elias; Blatt 20r (19v-20r)
Baier, Johann; Blatt 20v (20v-21r)
Dietz, Johann Georg; Blatt 21 (20v-21r)
Elwerth, Johann Philipp; Blatt 22 (21v-22r)
Beger, Johann Georg; Blatt 23 (22v-23r)
Cadisch, Moritz; Blatt 25 (24v-25r)
Fritz, Sigmund; Blatt 28 (27v-28r)
Welser, Marx Christoph von; Blatt 40 (39v-40r)
Otto, Sebastian; Blatt 44 (43v-44r)
Gockel, Balthasar; Blatt 45r (44v-45r)
Veiel, Elias Jacob; Blatt 45v (45v-46r)
Algoewer, David; Blatt 46 (45v-46r)
Herttenstein, Johann Friedrich; Blatt 47 (46v-47r)
Usenbenz, Johann Andreas; Blatt 48 (47v-48r)
Holl, Johann; Blatt 49 (48v-49r)
Frick, Albrecht; Blatt 50 (49v-50r)
Gerhard, Sebastian Konrad; Blatt 51 (50v-51r)
Frick, Septimus Helvig; Blatt 52 (51v-52r)
Stölzlin, Timotheus; Blatt 53r (52v-53r)
Stölzlin, David; Blatt 53v (53v-54r)
Halder, Jakob Ulrich; Blatt 54v (54v-55r)
Philon; Blatt 55 (54v-55r)
Burmeister, Johann Christian; Blatt 56 (55v-56r)
Hocheisen, Eberhard; Blatt 59 (58v-59r)
Scheifelen, Johann Sigismund; Blatt 60 (59v-60r)
Andler, Friedrich Isaak; Blatt 62r (61v-62r)
Haupt, Johann Georg; Blatt 62v (62v-63r)
Hoser, Paul Burckhard; Blatt 63r (62v-63r)
Dinckel, Balthasar Friedrich; Blatt 63v (63v-64r)
Unbekannt, Blatt 64r (63v-64r)
Keßler, Georg Heinrich; Blatt 64v (64v-65r)
Rau, David Wilhelm; Blatt 65r (64v-65r)
Heckel, Christoph Benjamin; Blatt 65v (65v-66r
Modeling the Use of Nonrenewable Resources Using a Genetic Algorithm
No full textThis paper shows, how a genetic algorithm (GA) can be used to model an economic process: the interaction of profit-maximizing oil-exploration firms that compete with each other for a limited amount of oil. After a brief introduction to the concept of multi-agent-modeling in economics, a GA-based resource-economic model is developed. Several model runs based on different economic policy assumptions are presented and discussed in order to show how the GA-model can be used to gain insight into the dynamic properties of economic systems. The remainder outlines deficiencies of GA-based multi-agent approaches and sketches how the present model can be improved.
The Pennsylvania Reemployment Bonus Experiments: How a survival model helps in the analysis of the data
No full textSurvival models for life-time data and other time-to-event data are widely used in many fields, including medicine, the environmental sciences, engineering etc. They have also found recognition in the analysis of economic duration data. This paper provides a reanalysis of the Pennsylvania Reemployment Bonus Experiments, which were conducted in 1988-89 to examine the effect of different types of reemployment bonus offers on the unemployment spell. A Cox-proportional-hazards survival-model is fitted to the data and the results are compared to the results of a linear regression approach and to the results of a quantile regression approach. The Cox-proportional-hazards model provides for a remarkable goodness of fit and yields less effective treatment responses, therefore lower expectations concerning the overall implications of the Pennsylvania experiment. An influence analysis is proposed for obtaining qualitative information on the influence of the covariates at different quantiles. The results of the quantile regression and of the influence analysis show that both the linear regression and the Cox-model still impose stringent restrictions on the way covariates influence the duration distribution, however, due to its flexibility, the Cox-proportional hazards model is more appropriate for analysing the data.
Uniqueness Conditions for Point-Rationalizable
No full textThe unique point-rationalizable solution of a game is the unique Nash equilibrium. However, this solution has the additional advantage that it can be justified by the epistemic assumption that it is Common Knowledge of the players that only best responses are chosen. Thus, games with a unique point-rationalizable solution allow for a plausible explanation of equilibrium play in one-shot strategic situations, and it is therefore desireable to identify such games. In order to derive sufficient and necessary conditions for unique point-rationalizable solutions this paper adopts and generalizes the contraction-property approach of Moulin (1984) and of Bernheim (1984). Uniqueness results obtained in this paper are derived under fairly general assumptions such as games with arbitrary metrizable strategy sets and are especially useful for complete and bounded, for compact, as well as for finite strategy sets. As a mathematical side result existence of a unique fixed point is proved under conditions that generalize a fixed point theorem due to Edelstein (1962).
Security And Potential Level Preferences With
No full textThe security level models of Gilboa (1988) and of Jaffray (1988) as well as the security and potential level model of Cohen (1992) accomodate succesfully classical Allais paradoxa while they offer an interesting explanation for their occurrence. However, experimental data suggest a systematic violation of these models when lotteries with low probabilities of bad or good outcomes are involved. The present paper develops an axiomatic model that allows for thresholds in the perception of security and potential levels. The derived representation of preferences accommodates the observed violations of the original security and potential level models and provides a natural explanation for their occurence. Additionally, a more fundamental problem of the original models is resolved.
Spatial Dynamic Modeling and Urban Land Use Transformation:
No full textAssessing the economic impacts of urban land use transformation has become complex and acrimonious. Although community planners are beginning to comprehend the economic trade-offs inherent in transforming the urban fringe, they find it increasingly difficult to analyze and assess the trade-offs expediently and in ways that can influence local decisionmaking. New and sophisticated spatial modeling techniques are now being applied to urban systems that can quickly assess the probable spatial outcomes of given communal policies. Applying an economic impact assessment to the probable spatial patterns can provide to planners the tools needed to quickly assess scenarios for policy formation that will ultimately help inform decision makers. This paper focuses on the theoretical underpinnings and practical application of an economic impact analysis submodel developed within the Land use Evolution and Impact Assessment Modeling (LEAM) environment. The conceptual framework of LEAM is described, followed by an application of the model to the assessment of the cost of urban sprawl in Kane County, Illinois. The results show the effectiveness of spatially explicit modeling from a theoretical and a practical point of view. The agent-based approach of spatial dynamic modeling with a high spatial resolution allows for discerning the macro-level implications of micro-level behaviors. These phenomena are highlighted in the economic submodel in the discussion of the implications of land use change decisions on individual and communal costs; low-density development patterns favoring individual behaviors at the expense of the broader community.
Self-Annuitization, Ruin Risk in Retirement and Asset Allocation: The Annuity Benchmark
No full textThe present paper considers a retiree of a certain age with an initial endowment of investable wealth facing the following alternative investment opportunities. One possibility is to buy a single premium immediate annuity-contract. This insurance contract pays a life-long constant pension payment of a certain amount, depending e.g. on the age of the retiree, the operating cost of the insurance company and the return the company is able to realize from its investments. The alternative possibility is to invest the single premium into a portfolio of mutual funds and to periodically withdraw a fixed amount, in the present paper chosen to be equivalent to the consumption stream generated by the annuity . The particular advantage of this self annuitization strategy compared to the life annuity is its greater liquidity. However, the risk of the second opportunity is to outlive the income stream generated by this investment. The risk in this sense is specified by considering the probability of running out of money before the uncertain date of death. The determination of this personal ruin probability with respect to German mortality and capital market conditions is the objective of the following paper.
Overconfident but yet well-calibrated and underconfident: A research note on judgmental miscalibration and flawed self-assessment*
No full textThe present paper addresses the question whether overconfidence is an individually stable phenomenon. A within-subjects design was used to investigate whether judgmental miscalibration also reflects tendency to make flawed self-assessments. While the former notion refers to the tendency of individuals to put unrealistic beliefs in their judgments, the latter concerns the tendency of individuals to make inaccurate evaluations of their abilities and performance. On the whole, the paper finds little support that those two tendencies should be related. Depending on the employed measurement, the participants were found to be simultaneously overconfident, well-calibrated, and underconfident.
Overwintering behavior of the entomopathogenic nematodes Steinernema scarabaei and AND Heterohabditis bacteriophora (Rhabditida: Steinernematidae and Heterorhabditidae) and their white grub hosts (Coleoptera: Scarabaeidae)
No full textEntomopathogenic nematodes (EPN) Steinernema scarabaei and Heterorhabditis bacteriophora, species endemic to New Jersey turfgrass habitats, have great potential as biological control agents of various white grub pest species. EPN have potential for long-term white grub suppression, but to more reliably achieve this, a better understanding is necessary of the nematodes' survival mechanisms expresses during harsh seasonal conditions. Infective juveniles (IJ) may employ similar vertical migratory patterns as other soil-inhabiting animals during harsh seasonal conditions. To determine the existence of vertical relocation as an overwintering mechanism we investigated the vertical distribution of S. scarabaei and H. bacteriophora relative to (1) fluctuating soil temperature and (2) changing vertical position of two white grub hosts, Japanese Beetle (Popillia japonica) and oriental beetle (Anomala orientalis), during the late fall, winter and early spring season. The vertical distributions of white grub and IJ populations were monitored every 14-18 days in established turf plots (3-4 years old) from mid-October to the first week of May in two consecutive years (2006-2007 and 2007- 2008). The vertical distribution of S. scarabaei, H. bacteriophora, and Steinernema carpocapsae did not change from the fall to the spring season. Soil temperature did not appear to influence IJ vertical distribution. The vertical distribution of both white grub species changed with temperature during fall and spring but not in winter. Overwintering S. scarabaei and H. bacteriophora IJs were only recovered in the soil. There was no evidence for successful in-host survival or latent infection in endemic white grub populations. Although the relationship between temperature and vertical distribution for EPN and their white grub hosts differed, a considerable degree of spatial and temporal overlap was observed between respective EPN and host populations. Overwintering EPN appear to survive primarily or exclusively as IJs in the soil and presumably employ various physiological and biochemical mechanisms as survival strategies during seasonally cold and freezing conditions.M.S.Includes bibliographical references (p. 34-40)by Daniel Ethan Elmowit
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