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Search Results: 1 - 10 of 36 matches for " Gassner "
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The end of the audience: How the nature of audiences changed
Patricia Gassner
Global Media Journal : African Edition , 2011, DOI: 10.5789/1-1-51
Abstract: Entering the ongoing discussion about the so-called “end of the audience”, this paper is concerned with the theory and practice of audience research, as it examined different perspectives of audiences as well as different research approaches. Various different theoretical concepts used to analyse how populations and individuals intersect with culture, society, and the media have been explored in order to give an accurate picture of today’s notion of audiences in a South African context. Overall, findings confirm a shift in the notion of audiences from a mass of passive spectators to active and selective media users equipped with certain “knowledge” depending on social experiences and cultural identities that furthermore determine interpretation of polysemic media messages. The media landscape has changed in recent decades, and today we are faced with a segmented market, serving highly fragmented audiences. These developments recommend looking beyond basic socio-demographic characteristics of media users in an attempt to classify media consumers into more distinctive types of audiences that can then be served according to specific media needs and interests. To do so, it seems necessary to make further distinctions of audiences including psychological characteristics as well as various related variables such as attitudes, tastes, values, norms or (the concept) of lifestyles. The paper concludes with the case of South Africa’s audiences as it is assumed that a wide range of given diversities, as for example regarding languages, races, beliefs, norms, classes, wealth, education and so forth, are significantly contributing to audience fragmentation and suggest adequate media supply.
Structural grafts and suture techniques in functional and aesthetic rhinoplasty
Gassner, Holger G.
GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery , 2010,
Abstract: Rhinoplasty has undergone important changes. With the advent of the open structure approach, requirements for structural grafting and direct manipulation of the cartilaginous skeleton through suture techniques have increased substantially. The present review analyzes the current literature on frequently referenced structural grafts and suture techniques. Individual techniques are described and their utility is discussed in light of available studies and data.
Nearest neighbour models for local and regional avalanche forecasting
M. Gassner,B. Brabec
Natural Hazards and Earth System Sciences (NHESS) & Discussions (NHESSD) , 2002,
Abstract: This paper presents two avalanche forecasting applications NXD2000 and NXD-REG which were developed at the Swiss Federal Institute for Snow and Avalanche Re-search (SLF). Even both are based on the nearest neighbour method they are targeted to different scales. NXD2000 is used to forecast avalanches on a local scale. It is operated by avalanche forecasters responsible for snow safety at snow sport areas, villages or cross country roads. The area covered ranges from 10 km2 up to 100 km2 depending on the climatological homogeneity. It provides the forecaster with ten most similar days to a given situation. The observed avalanches of these days are an indication of the actual avalanche danger. NXD-REG is used operationally by the Swiss avalanche warning service for regional avalanche forecasting. The Nearest Neighbour approach is applied to the data sets of 60 observer stations. The results of each station are then compiled into a map of current and future avalanche hazard. Evaluation of the model by cross-validation has shown that the model can reproduce the official SLF avalanche forecasts in about 52% of the days.
Practical experiences with the EASY TEST FOM moisture meter in assessing the soil water balance of a maize field
Stenitzer E.,Gassner L.
International Agrophysics , 2004,
Abstract: Systematic measurements of the water content at different depths below a continuous maize crop by the EASY TEST FOM soil moisture meter and their use for calibration of the SIMWASER simulation model are shortly described. The instrument provided reliable data and proved to be robust and simple to operate.
EKG-Beispiel: Pseudorhythmen bei Vorhofflattern
Michalski T,Rack K,Gassner S
Journal für Kardiologie , 2012,
Abstract:
An Entropy Stable Finite Volume Scheme for the Equations of Shallow Water Magnetohydrodynamics
Andrew R. Winters,Gregor J. Gassner
Mathematics , 2015, DOI: 10.1007/s10915-015-0092-6
Abstract: In this work, we design an entropy stable, finite volume approximation for the shallow water magnetohydrodynamics (SWMHD) equations. The method is novel as we design an affordable analytical expression of the numerical interface flux function that exactly preserves the entropy, which is also the total energy for the SWMHD equations. To guarantee the discrete conservation of entropy requires a special treatment of a consistent source term for the SWMHD equations. With the goal of solving problems that may develop shocks, we determine a dissipation term to guarantee entropy stability for the numerical scheme. Numerical tests are performed to demonstrate the theoretical findings of entropy conservation and robustness.
Affordable, Entropy Conserving and Entropy Stable Flux Functions for the Ideal MHD Equations
Andrew R. Winters,Gregor J. Gassner
Mathematics , 2015,
Abstract: In this work, we design an entropy stable, finite volume approximation for the ideal magnetohydrodynamics (MHD) equations. The method is novel as we design an affordable analytical expression of the numerical interface flux function that discretely preserves the entropy of the system. To guarantee the discrete conservation of entropy requires the addition of a particular source term to the ideal MHD system. Exact entropy conserving schemes cannot dissipate energy at shocks, thus to compute accurate solutions to problems that may develop shocks, we determine a dissipation term to guarantee entropy stability for the numerical scheme. Numerical tests are performed to demonstrate the theoretical findings of entropy conservation and robustness.
Circumstantial evidence for an increase in the total number and activity of borrelia-infected ixodes ricinus in the Netherlands
Sprong Hein,Hofhuis Agnetha,Gassner Fedor,Takken Willem
Parasites & Vectors , 2012, DOI: 10.1186/1756-3305-5-294
Abstract: Background Between 1994 and 2009, a threefold increase has been observed in consultations of general practitioners for tick bites and Lyme disease in The Netherlands. The objective of this study was to determine whether an increase in the number of questing ticks infected with B. burgdorferi sensu lato is a potential cause of the rise in Lyme disease incidence. Methods Historic data on land usage, temperature and wildlife populations were collected and analyzed together with data from two longitudinal field studies on density of questing ticks. Effective population sizes of Borrelia burgdorferi s.l. were calculated. Results Long-term trend analyses indicated that the length of the annual tick questing season increased as well as the surface area of tick-suitable habitats in The Netherlands. The overall abundances of feeding and reproductive hosts also increased. Mathematical analysis of the data from the field studies demonstrated an increase in mean densities/activities of questing ticks, particularly of larvae between 2006 and 2009. No increase in infection rate of ticks with Borrelia burgdorferi sensu lato was found. Population genetic analysis of the collected Borrelia species points to an increase in B. afzelii and B. garinii populations. Conclusions Together, these findings indicate an increase in the total number of Borrelia-infected ticks, providing circumstantial evidence for an increase in the risk of acquiring a bite of a tick infected with B. burgdorferi s.l. Due to the high spatiotemporal variation of tick densities/activities, long-term longitudinal studies on population dynamics of I. ricinus are necessary to observe significant trends.
Retrospective Validation of New Simulation Software to Prevent Perioperative Hypothermia in Major Urologic Abdominal Surgery
Anselm Br?uer,Sebastian Gassner,Jochim Koch,Daniel Heise
ISRN Anesthesiology , 2011, DOI: 10.5402/2011/620905
Abstract:
Aktuelles: Intakte Geminischwangerschaft nach ICSI im Spontanzyklus bei progredienter latenter prim rer Ovarialinsuffizienz
Fink S,Bals-Pratsch M,Gassner P,Seifert B
Journal für Fertilit?t und Reproduktion , 2003,
Abstract:
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