Bretten, Germany
Bretten, Germany

Time filter

Source Type

Kelly M.,Bowburn Consultancy | Urbanic G.,Institute for Water of the Republic of Slovenia | Urbanic G.,University of Ljubljana | Acs E.,Hungarian Academy of Sciences | And 17 more authors.
Hydrobiologia | Year: 2014

Eleven European countries participated in an exercise to harmonise diatom-based methods used for status assessment in lakes. Lakes were divided into low, medium and high alkalinity types for this exercise. However, it was not possible to perform a full intercalibration on low alkalinity lakes due to the short gradient and confounding factors. Values of the Trophie Index were computed for all samples in order that national datasets could all be expressed on a common scale. Not all participants had reference sites against which national methods could be standardised and, therefore, a Generalised Linear Modelling approach was used to control the effect of national differences in datasets. This enabled the high/good and good/moderate status boundaries to be expressed on a common scale and for deviations beyond ±0.25 class widths to be identified. Those countries which had relaxed boundaries were required to adjust these to within ±0.25 class widths whilst the intercalibration rules allowed those countries with more stringent boundaries to retain these. Despite biogeographical and typological differences between countries, there was broad agreement on the characteristics of high, good and moderate status diatom assemblages, and the exercise has ensured consistent application of Water Framework Directive assessments around Europe. © 2014 Springer International Publishing Switzerland.


Schneeweiss N.,Landesamt fur Umwelt | Hintzmann J.,Ministerium fur Klimaschutz | Lippert J.,Seeburger | Stein M.,Kastanienweg 1 | Thiesmeier B.,Diemelweg 7
Zeitschrift fur Feldherpetologie | Year: 2014

At the least since the mid-19th century numerous free-living amphibians and reptiles get collected for hobby activity or commercial interests. The extinction of one green lizard population or the decline of European tree frogs in the surrounding of Berlin has been pulled together with the capture of animals since turn of the century before last. According to the federal law on nature protection and the species conservation act the capture of native amphibians and reptiles and their husbandry is forbidden since nearly 30 years. Despite of these clear legal norms interferences on free-living amphibian and reptiles populations are repeating until today. The motives are various and range from a collection purpose and a self-constituted breeding project to the point of unethical animal marketing. Even recently the illegal removal of individuals threatened one of the last green lizard population in Germany. Investigations in the internet, anonymous information and later on criminalistic investigations uncovered a network of national and international organized criminals. Three responsible persons have been convicted to partly perennial suspended jail sentences. The increasing threat for native amphibian and reptile populations demands more social efforts against the illegal capture and trade of wild animals. The public authorities for species conservation execution of the federal states have an important role. We claim for a complete ban in trading native amphibian and reptiles species. Organizations like the DGHT have to argue with the animal trade more critically and should put more efforts in the conservation of native amphibian and reptile populations in the future. © Laurenti-Verlag Bielefeld.


Luft L.,Sielmanns Naturlandschaft Doberitzer Heide GGmbH | Luft L.,University of Potsdam | Neumann C.,Helmholtz Center Potsdam | Freude M.,Seeburger | And 2 more authors.
Ecological Indicators | Year: 2014

Military areas are valuable habitats and refuges for rare and endangered plants and animals. We developed a new approach applying innovative methods of hyperspectral remote sensing to bridge the existing gap between remote sensing technology and the demands of the nature conservation community. Remote sensing has already proven to be a valuable monitoring instrument. However, the approaches lack the consideration of the demands of applied nature conservation which includes the legal demands of the EU Habitat Directive. Following the idea of the Vital Signs Monitoring in the USA, we identified a subset of the highest priority monitoring indicators for our study area. We analyzed continuous spectral response curves and tested the measurability of N = 19 indicators on the basis of complexity levels aggregated from extensive vegetation assemblages. The spectral differentiability for the floristic as well as faunistic indicators revealed values up to 100% accuracy. We point out difficulties when it comes to distinguishing faunistic habitat requirements of several species adapted to dry open landscapes, which in this case results in Overall accuracy of 67, 87-95, and 35% in the error matrix. In summary, we provide an applicable and feasible method to facilitating monitoring military areas by hyperspectral remote sensing in the following. © 2014 Elsevier Ltd.


Floch J.,Sintef | Fra C.,Telecom Italia | Fricke R.,Condat AG | Geihs K.,University of Kassel | And 8 more authors.
Software - Practice and Experience | Year: 2013

Although the idea of context-awareness was introduced almost two decades ago, few mobile software applications are available today that can sense and adapt to their run-time environment. The development of context-aware and self-adaptive applications is complex and few developers have experience in this area. On the basis of several demonstrators built by the joint European research project MUSIC, this paper describes typical context and adaptation features relevant for the development of context-aware and self-adaptive mobile applications. We explain how the demonstrators were realised using the open-source platform MUSIC and present the feedback of the developers of these demonstrators. The main contribution of this paper is to show how the development complexity of context-aware and self-adaptive mobile applications can be mastered by using an adaptation framework such as MUSIC. Copyright © 2012 John Wiley & Sons, Ltd.


Due to high nitrogen concentrations, two groundwater bodies in Northern Brandenburg were classified under the heading "poor (chemical) condition" according to the Water Framework Directive of the European Commission. These evaluations of the "Landesumweltamt Brandenburg" were based on several investigations that compared the hydrogeochemical data with the quality norm for nitrate and with the threshold value for ammonia from the European Groundwater Directive. By sampling with direct push techniques, we re-analysed the extent of contamination in order to decide whether the water quality could be improved in a cost-effective manner. Based on the newly established data set, the area of contamination could be more precisely delineated with geostatistical techniques. This helped to determine whether the previous evaluation of local groundwater quality was still valid. © 2010 Springer-Verlag.


Maschke C.,Seeburger
Noise & health | Year: 2011

Research on systematic noise effects started in Germany back in the fifties with basic experimental studies on humans. As a result, noise was classified as a non-specific stressor, which could cause an ergotropic activation of the complete organism. In the light of this background research a hypothesis was proposed that long-term noise exposure could have an adverse effect on health. This hypothesis was further supported by animal studies. Since the sixties, the adverse effects of chronic road traffic noise exposure were further examined in humans with the help of epidemiological studies. More epidemiological aircraft noise studies followed in the 1970s and thereafter. The sample size was increased, relevant confounding factors were taken into account, and the exposure and health outcomes were investigated objectively and with higher quality measures. To date, more than 20 German epidemiological traffic noise studies have focused on noise-induced health effects, mainly on the cardiovascular system. In particular, the newer German noise studies demonstrate a clear association between residential exposure to traffic noise (particularly night noise) and cardiovascular outcomes. Nevertheless, additional research is needed, particularly on vulnerable groups and multiple noise exposures. The epidemiological findings have still not been fully considered in German regulations, particularly for aircraft noise. The findings, however, were taken into account in national recommendations. The Federal Environment Agency recommends noise rating levels of 65 dB(A) for the day and 55 dB(A) for the night, as a short-term goal. In the medium term, noise rating levels of 60 / 50 (day, night) should be reached and noise rating levels of 55 / 45 in the long run.


Rucker J.,TU Brandenburg | Barsch A.,Seeburger | Nixdorf B.,TU Brandenburg
WasserWirtschaft | Year: 2015

Trophic pressure is the main stressor for lakes. The aim of the EU Water Framework Directive is to reach a good ecological status for all water bodies. Assessment systems basing on ecological response of water plants (flora) for natural lakes and results of 183 lakes in Brandenburg are presented. Although there was an improvement of water quality as it is demonstrated for two lakes in the region of Lake Scharmiitzelsee since 1994, more than 80% of Brandenburg lakes do not achieve the good ecological status yet. In some cases the assessment by different ecological quality components (phytoplankton and macrophytes) differs remarkably. Reasons for these discrepancies are discussed. The comparison with target values for nutrient concentrations show that present phosphorus and nitrogen concentrations are still too high.


Since the severe 1997 summer flood about 145 kilometres of total 184 km fluvial levees have been reinforced with costs of 250 million Euros along the Oder river in the Federal State of Brandenburg. The present paper calls this flood event to mind, describes the used standard levee layout and presents the whole levee construction program. Furthermore the know-how and the experience gained with the refurbished levees during the summer flood 2010 are discussed.


Khanna R.,Seeburger
Computer Fraud and Security | Year: 2013

According to a recent study by the Ponemon Institute, each data breach costs British businesses up to £138,700, and it takes each firm over nine months to recover.1,2 With data security a number one priority, why are data breaches still costing UK businesses billions of pounds a year? The answer lies in the discrepancies between the perceived threats to data security and the actual drivers of data breaches in businesses. To effectively tackle data security and minimise data breaches, businesses need to address what makes them vulnerable - Bring Your Own Device (BYOD), consumer technologies and out of date strategies for sharing and protecting data. Solutions such as Managed File Transfer (MFT) are breaking new ground by providing a way to manage data sharing, minimising risk through centrally controlling and tracking both impromptu and scheduled data transfer, explains Rohit Khanna of Seeburger. © 2013 Elsevier Ltd.


The invention subject to this document describes methods for data transformations for hierarchical documents and relational databases. Data transformations ensure the interoperability between different organisations as well as different tools. The XQuery-standard is an example for a language that allows to create such transformations. The invention claimed is suited to interpret and execute XQuery-defined transformations. It comprises methods that can also be applied on other transformation languages. A procedure is described that includes the compilation of mappings into a set of interconnected operators exchanging data in form of tuple streams, including several optimizations to improve the performance of the basic procedure and reduce memory- as well as hard-disk consumption.

Loading Seeburger collaborators
Loading Seeburger collaborators