53 research outputs found

    Uberzeugender Beweis aus der Vernunft von der Unsterblichkeit sowohl der Menschen Seelen insgemein, als besonders der Kinder-Seelen

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    Israel Gottlieb Canz’s Uberzeugender Beweiß, first published in 1741 and reprinted here in its second, expanded edition stands as his most influential discussion of the soul’s immortality, with one contemporary pronouncing it to be “one of the best [treatments of immortality] that we have.” In this text, Canz seeks to augment and supplement traditional Wolffian proofs by considering, first, the grounds for the soul’s immortality that are contained in its own nature and, second, the grounds for the same that are found in God. In addition, Canz extends his treatment to include a detailed discussion of the souls of children and he offers speculations concerning the soul’s condition in the afterlife. On account of its systematic presentation and original argumentation, Canz’s Beweiß represents a key contribution to Leibniz-Wolffian rational psychology, and through the critical reaction it generated it would help shape the debate concerning the soul’s immortality for years after its original publication

    Fuzzy Linear Programming in DSS for Energy System Planning

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    Energy system planning requires the use of planning tools. The mathematical models of real-world energy systems are usually multiperiod linear optimization programs. In these models, the objective function describes the total discounted costs of covering the demand for final energy or energy services. The demand for various forms of energy or energy services is the driving force of the models. By using such linear programming (LP) formulations, decision makers can elaborate suitable strategies for solving their planning problems, such as the development of emission reduction strategies. Uncertainties that affect the process of energy system planning can be divided into parameter and decision uncertainties. Data or parameter uncertainties can be addressed either by stochastic optimization or by the methodology of fuzzy linear programming (FLP). In addition, FLP allows explicit incorporation of decision uncertainties into a mathematical model. This paper therefore aims at evaluating the methodology of FLP with respect to the support that it offers the decision-making process in energy system planning under uncertainty. Employing the parallels between multi-objective linear programming (MOLP) and FLP, problems of FLP in decision support system applications are pointed out and solutions are offered. The proposed modifications are based on the methodology of aspiration-reservation based decision support and still enable modeling of uncertainties in a fuzzy sense. A case study is documented to show the application of the modified FLP approach

    Investigations on the Students’ Perception of an Online-Based Laboratory with a Digital Twin in the Main Course of Studies in Mechanical Engineering

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    During the coronavirus crisis, labs had to be offered in digital form in mechanical engineering at short notice. For this purpose, digital twins of more complex test benches in the field of fluid energy machines were used in the mechanical engineering course, with which the students were able to interact remotely to obtain measurement data. The concept of the respective lab was revised with regard to its implementation as a remote laboratory. Fortunately, real-world labs were able to be fully replaced by remote labs. Student perceptions of remote labs were mostly positive. This paper explains the concept and design of the digital twins and the lab as well as the layout, procedure, and finally the results of the accompanying evaluation. However, the implementation of the digital twins to date does not yet include features which address the tactile experience of working in real-world labs

    New records of birds for Tucumán province, Argentina

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    Se presenta en el siguiente trabajo, la distribución de cuatro especies con registros poco frecuentes en la provincia de Tucumán, tres de ellos pertenecen a especies citadas con pocos registros (Egretta caerulea, Busarellus nigricollis, Micrastur semitorquatus). Mientras que Larus dominicanus, Primolius auricollis y Pulsatrix perspicilliata corresponden a nuevos registros para la provincia. Además un registro como importante lugar de invernada de guayata (Oressochen melanopterus). Las observaciones pueden corresponder a desplazamientos migratorios, expansiones poblacionales o que son especies en el límite austral de su distribución.Three species with infrequent records in the Tucumán province, are presented (Egretta caerulea, Busarellus nigricollis and Micrastur semitorquatus). In addition, Larus dominicanus, Primolius auricollis and Pulsatrix perspicilliata are recorded as new to the province. An important wintering ground for guayata (Oressochen melanoleucus) was also detected. The observations may correspond to migratory movements, population expansions or that they are species in the southern limit of their distribution.Fil: Alvarez, Melina Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Hurlingham. Instituto de Biotecnologia.; ArgentinaFil: Canz, Antonio. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Aveldaño, Walter Sebastián. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Aráoz, Rodrigo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Molina, María Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - Tucumán. Unidad Ejecutora Lillo; ArgentinaFil: Capllonch, Patricia. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; ArgentinaFil: Miatello, Rodolfo. Monte de los Gauchos; ArgentinaFil: Ortiz, Diego. Universidad Nacional de Tucumán. Facultad de Ciencias Naturales e Instituto Miguel Lillo; Argentin

    Inclusive jet cross section in pˉp{\bar p p} collisions at s=1.8\sqrt{s}=1.8 TeV

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    The inclusive jet differential cross section has been measured for jet transverse energies, ETE_T, from 15 to 440 GeV, in the pseudorapidity region 0.1η\leq | \eta| \leq 0.7. The results are based on 19.5 pb1^{-1} of data collected by the CDF collaboration at the Fermilab Tevatron collider. The data are compared with QCD predictions for various sets of parton distribution functions. The cross section for jets with ET>200E_T>200 GeV is significantly higher than current predictions based on O(αs3\alpha_s^3) perturbative QCD calculations. Various possible explanations for the high-ETE_T excess are discussed.Comment: 8 pages with 2 eps uu-encoded figures Submitted to Physical Review Letter

    From empirics to empiricists

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    Validitätsaspekte bei der Messung von Schreibkompetenzen

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    Die Arbeit stellt eine nationale Bildungsstudie zur Erfassung von Schreibkompetenzen vor und untersucht das angewandte Verfahren auf drei ausgewählte Validitätsaspekte. In Studie I wird geprüft, ob es sich bei Schreibkompetenz sowie den Schreibkompetenzdimensionen Inhalt, Stil und sprachliche Richtigkeit um textmusterunabhängige oder textmusterspezifische Konstrukte handelt. Darüber hinaus wird die interne Struktur von Schreibkompetenz betrachtet. Die vorwiegend auf Modellvergleichen basierenden Analysen zeigen, dass es sich bei allgemeinen Schreibkompetenzen sowie bei inhaltlichen und stilistischen Schreibkompetenzen um textmusterspezifische Konstrukte handelt, bei der orthografisch-grammatischen Schreibkompetenz hingegen um ein textmusterunabhängiges Konstrukt. Für alle Textmuster zeigt sich eine zweidimensionale Struktur. In Studie II wird untersucht, inwiefern Lesefähigkeiten bei der Messung von Schreibkompetenzen aufgrund der textuellen Präsentation der Aufgabeninstruktion miterfasst werden. Der Einfluss der Lesekompetenz wird dabei als Zusammenhangsstärke zwischen Lese- und Schreibkompetenz in Abhängigkeit von leseschwierigkeitsquantifizierenden Merkmale via Mehrebenen¬moderatoranalysen geprüft. Es zeigen sich statistisch bedeutsame, aber praktisch kaum relevante Effekte für zwei der Merkmale: syntaktische Komplexität und Seltenheit der Wörter. In Studie III wird untersucht, ob eine von der sprachlichen Richtigkeit unabhängige Beurteilung inhaltlicher und stilistischer Schreibkompetenzen erfolgt oder ob Halo-Effekte zutage treten. In Anschlussanalysen wird geprüft, ob diese Halo-Effekte von Art und Anzahl der Fehler, Textlänge, Textkomplexität und Textmuster abhängen. Es zeigen sich keine Urteilsverzerrungen bei der inhaltlichen, jedoch bei der stilistischen Bewertung. Diese Verzerrungen sind größer bei syntaktisch komplexeren Texten und bei höherer Fehleranzahl, vor allem unter Vorliegen grammatischer Fehler und syntaktisch relevanter Zeichensetzungsfehler.The dissertation presents a national educational study assessing writing competencies in German. The underlying process of measuring writing competencies is investigated regarding three selected aspects of validity. The first study addresses the question, whether writing competence as well as the writing competence dimensions, i.e. contentual, stylistic and orthographic-grammatic writing competencies are discourse mode dependent or independent constructs. Additionally the internal structure of writing competence is investigated. Analyses, predominantly based on comparison of IRT-models, reveal that general writing competencies as well as the contentual and stylistic dimensions are discourse-mode-specific constructs, whereas the orthographic-grammatic writing competence is discourse mode independent. The second study raises the question to what extent, due to the fact that the writing task instructions are given textually, reading competencies are included when measuring writing. Therefore two-level moderator analyses are computed, modelling the correlation between reading and writing competence dependent on reading difficulty quantifying aspects. Statistically significant but practically hardly relevant effects obtain for two of these aspects: syntactic complexity of the instruction text and (in)frequency of the used words. The third study investigates whether the evaluation of contentual and stylistic writing competencies takes place regardless of orthographic and grammatic features of the underlying texts or whether halo effects occur. Further analyses examine possible rating shifts in dependence of error types, error amount, text length, text complexity and discourse type. The results reveal that stylistic, but not contentual rating shifts occur. These shifts are more pronounced in regard to syntactically more complex texts as well as higher error quantities and arise particularly under the presence of grammatical and syntactically relevant punctuation errors
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