7,689 research outputs found
309 - Lisa McBride Weber
No full textIncludes bibliographical references.In quantitative biology, one may use many different model scales or approaches to match models to experimental data. We use a simplified gene regulation model with a time-dependent input signal to illustrate many concepts, including ODE analyses of deterministic processes; chemical master equation and finite-state projection analyses of heterogeneous processes; and stochastic simulations. We consider several model hypotheses and simulated single-cell data to illustrate mechanism and parameter identification as precisely as possible, while exploring how approach or experiment design affect parameter uncertainty. Our approach is based upon previous investigations to explore signal-activated gene expression models in yeast and human cells
Ground based 2 DoF test for LISA and LISA pathfinder: A status report.
No full textOn-ground tests are required to study the couplings between LISA test masses and the spacecraft that host them. In order to study couplings that might act between two ore more degrees of freedom in measuring the position and acting on the position of each test mass, a many degrees of freedom facility is needed. Here we present the status of our new 2 DoF double torsion pendulum, that will be used to test LISA Gravitational Reference Sensor (GRS) on the ground
Das 9-Euro-Ticket kommt – Strohfeuer, Verkehrswende oder Symbolpolitik?
No full textDer Bund will ab Juni drei Monate lang Billigtickets für den öffentlichen Nahverkehrs mit 2,5 Milliarden Euro fördern. Ein Monatsticket soll nur 9 Euro kosten. Ist das der Auftakt zu einem überfälligen Ausbau des ÖPNV oder eher Symbolpolitik, die von der Überförderung des Autos ablenken soll? Wie erreichen wir eine bezahlbare Verkehrswende weg vom motorisierten Individualverkehr? Axel Weiß diskutiert mit Lisa Ecke - Mobilitätsforscherin, Karlsruher Institut für Technologie, Bastian Kettner - Verkehrsclub Deutschland, Ulrich Weber - Landesgeschäftsführer des Verbands der Verkehrsbetriebe Baden-Württember
Modelling the speciation and biogeochemistry of iron in oceanic surface waters at the Bermuda Atlantic Time-series Study site
No full textBy means of numerical modelling the cycling of iron between its various physical (dissolved, colloidal, particulate) and chemical (redox state and organic complexation) forms in the upper mixed layer of the ocean is analysed. Using the model an initial quantitative assessment is made of how this cycling influences iron uptake by phytoplankton and its loss via particulate export. The model is forced with observed dust deposition rates, mixed layer depths, and solar radiation at the site of the Bermuda Atlantic Timeseries Study (BATS). It contains an optimised ecosystem model which yields results close to the observational data from BATS.Firstly, the results of a zero-dimensional model approach show that the mixed layer cycle strongly influences the cycling of iron between its various forms. This was mainly attributed to the light dependency of photoreductive processes and to the seasonality of primary production. The daily photochemical cycle is driven primarily by the production of superoxide and its amplitude depends on the concentration and speciation of dissolved copper. Model results are largely insensitive to the dominant form of dissolved iron introduced via dust deposition, and also to the form of iron that is taken up directly during algal growth. In the model solutions, the role of the colloidal pumping mechanism depends strongly on assumptions made regarding rates of colloid aggregation and photoreduction rate.Secondly, a one-dimensional approach of the model is coupled with the General Ocean Turbulence Model (GOTM). The combined model was able to simulate the temporal patterns and vertical profiles of dissolved iron in the upper ocean at the BATS site reasonably well. Subsurface model profiles depended strongly on the parameter values chosen for loss processes affecting iron, colloidal aggregation and scavenging onto particles. Current estimates for these parameters result in depletion of dFe. A high stability constant of iron-binding organic ligands is required to reproduce the observed degree of organic complexation below the mixed layer. Solubility of atmospherically deposited iron higher than 2% leads to dissolved iron concentrations higher than observations. Despite neglecting ultraviolet radiation, the model produces diurnal variations and mean vertical profiles of dFe which are in good agreement with observations
Carl J. Weber Correspondence
No full textEntries include brief biographical information, a typed biography, a typed letter introducing Weber to the Maine Author Collection, a book review clipping describing Thomas Hardy\u27s first novel The Poor Man and the Lady as recognized and reassembled by Professor Weber from evidence in published correspondence, from some publication under a similar title in an 1878 issue of the New Quarterly Magazine, and some publication as Under the Greenwood Tree, a typed postcard from Weber inviting the Maine State Library to visit him at the English Department of Colby College in Waterville, Maine, and a typed letter from the Maine State Library to Dr. Carl J. Weber as editor of the Colby Library Quarterly thanking him for a copy of the February 1947 Quarterly (missing) and his gift of Octave by Robinson (presumably Edwin Arlington Robinson, also missing) for the Maine State Library
Max meets LISA spezial: Der Erste Weltkrieg. Jenseits von Politik- und Diplomatiegeschichte
No full textDie neueste Ausgabe der Gesprächesreihe 'Max meets LISA', die die Gerda Henkel Stiftung und die Max Weber Stiftung gemeinsam durchführen, beschäftigt sich mit dem Thema "Erster Weltkrieg. Jenseits von Politik- und Diplomatiegeschichte". Isabel V. Hull und Ernst Piper analysieren hier die große öffentliche Resonanz des Gedenkens an den Ersten Weltkrieg und vergleichen die Erinnerungskulturen in Deutschland und den Vereinigten Staaten. Sie sprechen über den Erfolg aktueller Publikationen und b..
Social networks: the future of marketing for small business
No full textPurpose – The authors review recent developments in online marketing strategy that demonstrate the growing power of online communities in building brand reputations and customer relationships. Design/methodologies/approach – This work draws upon the results of an ongoing research project that is investigating the use of new technologies by entrepreneurial growing businesses in the London area. A range of examples from our 30 case study businesses are drawn upon to illustrate some of the opportunities and threats associated with these new marketing priorities.<br/
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[Group gathered around Lisa Ling]
No full textA photograph of people gathered during the Women of Color Conference. They are (L-R) David Hall, Samantha Weber, Lisa Ling, and Dan Emenheiser. A waiter is carrying a platter of what appears to be white wine
Nano-Newton electrostatic force actuators for femto-Newton-sensitive measurements: System performance test in the LISA Pathfinder mission
No full textLISA Pathfinder Collaboration: et al.Electrostatic force actuation is a key component of the system of geodesic reference test masses (TM) for the LISA orbiting gravitational wave observatory and in particular for performance at low frequencies, below 1 mHz, where the observatory sensitivity is limited by stray force noise. The system needs to apply forces of order 10−9 N while limiting fluctuations in the measurement band to levels approaching 10−15 N/Hz1/2. We present here the LISA actuation system design, based on audio-frequency voltage carrier signals, and results of its in-flight performance test with the LISA Pathfinder test mission. In LISA, TM force actuation is used to align the otherwise free-falling TM to the spacecraft-mounted optical metrology system, without any forcing along the critical gravitational wave-sensitive interferometry axes. In LISA Pathfinder, on the other hand, the actuation was used also to stabilize the TM along the critical axis joining the two TM, with the commanded actuation force entering directly into the mission’s main differential acceleration science observable. The mission allowed demonstration of the full compatibility of the electrostatic actuation system with the LISA observatory requirements, including dedicated measurement campaigns to amplify, isolate, and quantify the two main force noise contributions from the actuation system, from actuator gain noise and from low frequency “in band” voltage fluctuations. These campaigns have shown actuation force noise to be a relevant, but not dominant, noise source in LISA Pathfinder and have allowed performance projections for the conditions expected in the LISA mission.This work has been made possible by the LISA Pathfinder mission, which is part of the space-science program of the European Space Agency. We acknowledge the work of the prime contractor for LPF and for the “LISA Technology Package,” Airbus Defense and Space, for the industrial implementation of the electrostatic actuation suspension as part of the overall DFACS dynamic control under their responsibility. The Italian contribution has been supported by Istituto Nazionale di Fisica Nucleare (INFN) and Agenzia Spaziale Italiana (ASI), Project No. 2017-29-H.1-2020 “Attivit`a per la fase A della missione LISA.” The UK groups wish to acknowledge support from the United Kingdom Space Agency (UKSA), the Scottish Universities Physics Alliance (SUPA), the University of Glasgow, the University of Birmingham, and Imperial College London. The Swiss contribution acknowledges the support of the Swiss Space Office via the PRODEX
Programme of ESA, the support of the ETH Research Grant No. ETH-05 16-2 and the support of the Swiss National Science Foundation (Projects No. 162449 and No. 185051). The Albert Einstein Institute acknowledges the support of the German Space Agency, DLR. The work is supported by the Federal Ministry for Economic Affairs and Energy based on a resolution of the German Bundestag (No. FKZ 50OQ0501, No. FKZ 50OQ1601, and No. FKZ 50OQ1801). J. I. T. and J. S. acknowledge the support of the U.S. National Aeronautics and Space Administration (NASA). Spanish contribution has been supported by Contracts No. AYA2010-15709 (Ministerio de Ciencia e Innovación, MICINN), No. ESP2013-47637-P, No. ESP2015-67234-P, No. ESP2017-90084-P (Ministerio de Asuntos Económicos y Transformación Digital, MINECO), and No. PID2019–106515GB-I00 (MICINN). Support from AGAUR (Generalitat de Catalunya) Contract No. 2017-SGR-1469 is also acknowledged. M. N. acknowledges support from Fundacion General CSIC (Programa ComFuturo). F. R. acknowledges an FPI contract from MINECO. The French contribution has been supported by the CNES (Accord Specific de Project No. CNES 1316634/CNRS 103747), the CNRS, the Observatoire de Paris and the University Paris-Diderot. E. P. and H. I. would also like to acknowledge the financial support of the UnivEarthS Labex program at Sorbonne Paris Cit´e (No. ANR-10-LABX-0023 and No. ANR-11-IDEX-0005-02). N. K. would like to thank for the support
from the CNES Fellowship.Peer reviewe
A qualidade da liderança: um estudo da teoria weberiana
No full textTCC (graduação) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Curso de Ciências Sociais.A questão da liderança política em Max Weber é de extrema importância para o entendimento de toda a obra deste autor. Este trabalho de conclusão de curso (TCC) propõe-se examinar as formas como o pensamento weberiano qualifica a liderança política. Primeiramente cotejando a qualidade da liderança política nas classes sociais. Num segundo momento averiguar a qualificação institucional para tal liderança. Por último, o presente trabalho objetiva verificar no indivíduo as qualidades enumeradas por Max Weber. Tendo, principalmente em seus textos militantes os conceitos de “ética dos fins últimos” (ou ética da convicção) (Gesinnungsethik) e "ética da responsabilidade" (Verantwortungsethik) como sendo os principais tipos ideais na ética profissional como espírito do capitalismo ocidental. Max Weber entende que é a herança política e, consequentemente a educação política os principais referenciais para a compreensão do tema em questão.The issue of political leadership in Max Weber got the paramount importance for the understanding of all the work by this author. This study aims at examining this issue from the perspective of the weberian concept of qualified political leadership. Primarily aims at comparing the quality of political leadership in social classes. Secondly ascertain the institutional qualification for political leadership. Finally, this study aims to verify the individual qualities listed by Max Weber. Having mainly in his militant’s works the concepts of ethics of conviction (Gesinnungsethik) and ethics of responsibility (Verantwortungsethik) as the main ideal types in professional ethics as the spirit of Western capitalism. Max Weber believes that is the political heritage and consequently leading education policy the frameworks for understanding the topic in question
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