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102. Visualization of environmental audio using ribbon plots and acoustic state sequences

Author

Mayer, W, Wybrow, M, Phillips, Yvonne, Towsey, Michael, Roe, Paul, Mayer, W, Wybrow, M, Phillips, Yvonne, Towsey, Michael, and Roe, Paul

Abstract

Long-duration audio-recordings of the environment are useful for monitoring biodiversity and ecosystem function. The technique is now widely used due to technological advances in recording technology. However, although the acquisition of audio has become quick and efficient, its analysis and interpretation remains comparatively slow and difficult. In this work, we describe a method to visualize long duration audio, thereby facilitating its analysis and exploration. We reduce the audio to vectors of acoustic indices and then cluster the vectors into recognizable classes. Despite this data reduction (six orders of magnitude), much useful ecological information remains. We demonstrate how acoustic vectors can be converted to ribbon plots to visualize weeks and months of recording. Acoustic clusters allow conversion of long-duration audio to a sequence of acoustic states which can then be visualized using sequence analysis software.

Published
2017

109. Vergleich zwischen der Femtosekunden-Laser assistierten und konventionellen Linsenchirurgie – systemische Zusammenfassung und Metaanalyse

Author

Kohnen, T, Shajari, M, Mathys, L, Herrmann, E, Petermann, K, and Mayer, W

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Thema: Diese systematische Literaturübersicht und Metaanalyse vergleicht die Femtosekundenlaser assistierte Kataraktchirurgie (FLACS) mit der konventionellen Kataraktchirurgie (CCS) und bewertet prospektive und retrospektive klinische Studien. In den 33 überprüften Studien erhielten 6422[zum vollständigen Text gelangen Sie über die oben angegebene URL], 30. Kongress der Deutschsprachigen Gesellschaft für Intraokularlinsen-Implantation, Interventionelle und Refraktive Chirurgie (DGII)

Published
2016
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110. Geographical and geological explorations of the La Plata Museum 1884–1905

Author

Riccardi, Alberto Carlos, Mayer, W., Clary, R. M., Azuela, L. F., Mota, T. S., and Wołkowicz, S.

Subjects
Ciencias Naturales, Geología, Museo de La Plata
Abstract

By 1852, Argentina had concluded the almost 40 years of political turmoil that followed Independence Day on 9 July 1816. Buenos Aires had 76 000 inhabitants, the country had a population of one million and more than 80% of the population were illiterate. A significant number of intellectuals who had been exiled abroad, where they had the opportunity to travel to Europe and the USA, returned to Argentina. Much of the ruling class that shaped the country in the following decades, in the so-called National Organization Period that followed enactment of the National Constitution in 1853, emerged from this group of exiles. The strong promotion of European immigration and education meant that, by 1910, the country had six million inhabitants, almost two million of whom were European, and the illiteracy rate had been reduced to 34%. During the National Organization Period, three pre-existing institutions – the Public Museum of Buenos Aires and the universities of Córdoba and Buenos Aires – acquired relevance for the first time in the promotion of geological studies. Facultad de Ciencias Naturales y Museo

Published
2016

111. Experimentelle Studien zur Fettembolie

Author

Heller, W., Mayer, W., Mörl, F. K., Allgöwer, M., editor, Bauer, K. H., editor, Block, W., editor, Brunner, A., editor, de la Camp, H. Bürkle, editor, Denk, W., editor, Derra, E., editor, Frey, E. K., editor, Linder, F., editor, v. Seemen, H., editor, and Zenker, R., editor

Published
1969
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112. Pflanzengerbstoffe

Author

Mayer, W., Ruhland, W., editor, Lozano, Barbarín Arreguín, Ballou, Clinton E., Blank, F., Charles Evans, W., Geissman, T. A., Goodwin, T. W., Haagen-Smit, A. J., Heusner, Alex, Kisser, Josef, Kreger, D. R., Mader, Hans, Mayer, Walter, Moritz, Otto, Nord, F. F., Schwarze, Paul, Shibata, Shoji, and de Stevens, George

Published
1958
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114. Die Hysterosalpinogographie in biluminaler Kathetertechnik

Author

Swoboda M, Mayer W, Buttinger E, Puttinger H, and Dirschlmayer W

Subjects
Gynäkologie, Infertilität, Tubendiagnostik, Tubendurchgängigkeit, lcsh:Gynecology and obstetrics, lcsh:RG1-991, Sterilität
Abstract

Dieser Artikel beschreibt neben der historischen Entwicklung der Tubendiagnostik eine Weiterentwicklung der Hysterosalpingographie unter Verwendung eines biluminalen Angiokatheters. Diese Technik bietet den Vorteil einer weitgehend schmerzlosen Untersuchung der Tubendurchgängigkeit ohne Sedoanalgesie durch Vermeidung von früher üblichen traumatisierenden Zervix-Adaptern. Neben dem diagnostischen Ergebnis einer freien oder nicht gegebenen Tubenpassage des Kontrastmittels kommt es durch die Spülung auch zur Entfernung von intraluminalen Verlegungen wie Debris oder Fibrin-Plugs. Deshalb scheint diese schonende Untersuchungsmethode vor allem im Kollektiv der Patientinnen mit sekundärer Sterilität und vor medikamentösen Maßnahmen zur Ovulationsinduktion ein empfehlenswertes diagnostisches und möglicherweise im Falle von Tubenokklusionen auch therapeutisches Verfahren zu sein.

Published
2011

115. Kinetics of liquid–liquid phase separation in a binary mixture with miscibility gap: Study of noncritical mixtures of 2,6-dimethyl pyridine/water near the lower critical point.

Author

Mayer, W. and Woermann, D.

Subjects
*PYRIDINE, *TEMPERATURE, *NUCLEATION
Abstract

Temperature jump experiments with a characteristic heating time of 0.5 ms are used to study the kinetics of liquid/liquid phase separation in noncritical mixtures of 2,6-dimethyl pyridine and water (|x-xc|>0.02; x, mole fraction of 2,6-dimethyl pyridine; xc, critical composition) as functions of composition and supersaturation. The response of the system to a temperature jump is monitored by measuring the intensity of light scattered by the sample at different scattering angles Θ (30°<Θ<90°) as a function of time (up to several seconds). Starting from a level of constant intensity reached with a time constant in the range of milliseconds after a temperature jump the scattered intensity increases with time. For small supersaturations consecutive maxima and minima of scattered intensity develop.They reflect diffusion limited growth of droplets of the emerging second liquid phase (linear relationship between the square of the radius of growing droplets and time). The growth rate increases with increasing supersaturation. Practically no nucleation barrier is found for the onset of growth of droplets for small supersaturations and compositions (|x-xc|>0.03). The number density N of growing droplets is obtained from simultaneous measurements of scattered intensity and turbidity. For small supersaturations N is independent of time but changes with supersaturation in a characteristic way (classical nucleation model). There exists an upper limit of overheating δT* above which the number density N increases drastically. The ratio (δT*/ΔTc,p) is independent of the reduced temperature ε of phase separation (ε=ΔTc,p/Tc; ΔTc,p=Tc-Tp; Tc, critical temperature, Tp, temperature of phase separation). This is expected for mixtures of noncritical composition. The theory proposed by Langer and Schwartz to treat nucleation and growth of droplets in metastable near critical fluids does not describe the phenomena observed in this... [ABSTRACT FROM AUTHOR]

Published
1990
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117. Einfluss der Linsentrübung auf die effektive Phakoemulsifikationszeit bei femtosekundenlaserassistierter Kataraktchirurgie

Author

Kohnen, Thomas, Klaproth, O.K., Hengerer, F.H., and Mayer, W.

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Fragestellung: Vergleich der effektiven Phakoemulsifikationszeit (EPT) bei manueller und femtosekundenlaserassistierter Phakoemulsifikation in Abhängigkeit von Trübungsgrad der Linse. Methodik: Retrospektive Fallserie. Operiert wurden 150 Augen von 86 Patienten mit seniler Katarakt. Gruppe[for full text, please go to the a.m. URL], 28. Kongress der Deutschsprachigen Gesellschaft für Intraokularlinsen-Implantation, Interventionelle und Refraktive Chirurgie (DGII)

Published
2014
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118. Morphologie der Randstruktur von fs-Laser-Kapsulotomien bei Anwendung verschiedener Laserinterfaces und -pulsenergien

Author

Hengerer, FH, Klaproth, OK, Mayer, W, and Kohnen, T

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Fragestellung: Vergleich morphologischer Veränderungen der Randstruktur von fs-Laser-Kapsulotomien bei Anwendung verschiedener Laserinterfaces und -pulsenergien. Methodik: In dieser experimentellen klinischen Studie wurden fs-Laser-Kapsulotomien in 30 Augen (LenSx, Alcon) durchgeführt.[for full text, please go to the a.m. URL], 28. Kongress der Deutschsprachigen Gesellschaft für Intraokularlinsen-Implantation, Interventionelle und Refraktive Chirurgie (DGII)

Published
2014
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121. A methodology for extracting legal norms from regulatory documents

Author

Halle, S, Mayer, W, Hashmi, Mustafa, Halle, S, Mayer, W, and Hashmi, Mustafa

Abstract

We present a methodology to extract legal norms from regulatory documents for their formalisation and later compliance checking. The need for the methodology is motivated from the shortcomings of existing approaches where the rule type and process aspects relevant to the rules are largely overlook. The methodology incorporates the well–known IF. . . THEN structure extended with the process aspect and rule type, and guides how to properly extract the conditions and logical structure of the legal rules for reasoning and modelling of obligations for compliance checking.

Published
2015

122. No time for compliance

Author

Halle, S, Mayer, W, Governatori, Guido, Hashmi, Mustafa, Halle, S, Mayer, W, Governatori, Guido, and Hashmi, Mustafa

Abstract

In the past few years several business process compliance framework based on temporal logic have been proposed. In this paper we investigate whether the use of temporal logic is suitable for the task at hand: namely to check whether the specifications of a business process are compatible with the formalisation of the norms regulating the business process. We provide an example inspired by real life norms where the use of linear temporal logic produces a result that is not compatible with the legal understanding of the norms in the example.

Published
2015

124. The forecasting accuracy of models of post-award network deployment: An application of maximum score tests

Author

Madden, Gary, Mayer, W., Wu, Chen, Tran, T., Madden, Gary, Mayer, W., Wu, Chen, and Tran, T.

Abstract

Each mobile network operator’s spectrum is assigned by national governments. Licenses awarded by auctions are tied to post-award network deployment obligations. Using data on 18 countries for the period 2000–2007, this study is the first to empirically forecast aftermarket performance by analysing whether these conditions are met in a timely fashion. The forecasts are conditioned on macroeconomic and market conditions, and package attributes. The models are evaluated based on Mayer and Wu’s (in press) maximum score tests. Traditional probit models are not robust to error misspecifications. However, Manski, 1975 and Manski, 1985 maximum score estimator only imposes median independence, and allows arbitrary heteroskedasticity. One obstacle to empirical implementation is the fact that the asymptotic distribution of the estimator cannot be used for hypothesis testing. Mayer and Wu address the problem using a ‘discretisation’ procedure. The tests do not impose additional assumptions on the data generating process, require a shorter computational time than subsampling, and allow the models to be misspecified. The test statistics reflect differences in forecasting accuracy under the null and alternative hypotheses.

Published
2015

125. Modelling OECD Broadband Subscriptions in Disequilibrium

Author

Mayer, W., Madden, Gary, Jin, Z., Tran, Thien, Mayer, W., Madden, Gary, Jin, Z., and Tran, Thien

Abstract

Encouraging broadband penetration is an important agenda item for policy makers internationally. Recent econometric panel investigations attempt to identify the economic variables that determine national broadband penetration. Clearly, the accuracy of results from these investigations is important for the design of effective broadband public policy. The empirical approach used here, differs from that work in two respects. First, this study estimates (both heterogeneous and homogeneous price adjustment) disequilibrium penetration models. The results validate the current approach by demonstrating that in the first sample year (2001), OECD markets record positive excess demand, but thereafter negative excess demands are exhibited. Second, the analysis includes an argument to allow consideration of whether the impact of unbundling is stronger in DSL dominant markets where mandatory access is firmly established.

Published
2015

143. Ergebnisse nach kornealem Crosslinking bei progredientem Keratokonus

Author

Vounotrypidis, Efstathios, Mayer, W. J., Mackert, M. J., Messmer, E. M., Eibl, K., and Kook, D.

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Evaluation der klinischen Ergebnisse nach kornealem Crosslinking (CXL) bei progredientem Keratokonus. Es wurde der klinische Verlauf von 40 Augen von 37 Patienten mit progredientem Keratokonus ausgewertet. Indikation zum CXL war eine topographisch bestätigt Progredienz des Keratokonus. Die Nachbeobachtungszeit[for full text, please go to the a.m. URL], 26. Kongress der Deutschsprachigen Gesellschaft für Intraokularlinsen-Implantation, Interventionelle und Refraktive Chirurgie (DGII)

Published
2012
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148. Radiosynoviorthese nach Knieendoprothesenimplantation

Author

Mayer, S, Mutzel, B, Mayer, W, Linke, R, and Jansson, V

Subjects
ddc: 610, 610 Medical sciences, Medicine
Abstract

Fragestellung: Die Radiosynoviorthese (RSO) ist eine etablierte Therapie zur Behandlung von entzündlichen und degenerativen Gelenkerkrankungen. Seit einigen Jahren findet sie auch Anwendung in der Behandlung von schmerzhaften Komplikationen nach Knietotalendoprothesenimplantation (K-TEP). In dieser[for full text, please go to the a.m. URL], Deutscher Kongress für Orthopädie und Unfallchirurgie; 74. Jahrestagung der Deutschen Gesellschaft für Unfallchirurgie, 96. Tagung der Deutschen Gesellschaft für Orthopädie und Orthopädische Chirurgie, 51. Tagung des Berufsverbandes der Fachärzte für Orthopädie

Published
2010
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