Überlegungen zur Einführung eines Grundrechts auf Betreten der Natur in die österreichische Rechtsordnung

Das Betreten und der Aufenthalt in der Natur sind in Österreich eine Selbstverständlichkeit. Ein Blick auf die rechtlichen Grundlagen offenbart allerdings eine Diskrepanz zwischen tatsächlicher Übung und Rechtsordnung, die die Juristerei seit einem Jahrhundert beschäftigt. Die folgenden Überlegungen thematisieren erstmals die Möglichkeit, den Erholungs suchenden in Österreich ein verfassungsgesetzlich gewährleistetes Recht einzuräumen. Ausgehend von einem konkreten Formulierungsvorschlag geht es um den möglichen Inhalt eines derartigen Grundrechts und darum, wie ein Ausgleich mit anderen geschützten Rechtspositionen gefunden werden kann.     

Clustering of Multilateral Environmental Agreements: Potentials and Limitations

The concept of clustering of multilateral environmental agreements (MEAs), i.e. the integration of groups of MEAs or parts thereof, has acquired prominence in recent discussions about reforming international environmental governance. Understood as a continuing process, clustering of MEAs aims at advancing the ongoing process of integrating the elements of this system more systematically and dynamically. This paper proceeds in three steps. First, it demonstrates that a distinction needs to be made between clustering of organisational elements of MEAs and their functions, since the conditions and the effects of their integration differ significantly. Second, it argues that – in contrast to several existing approaches that seek to build clusters starting from similarities in one dimension – any attempt to integrate elements of MEAs needs to be based upon the analysis of a range of factors that influence the prospects of such integration (including overlap of membership and issues, practical feasibility, legal obstacles, and functional requirements). Third, the article contrasts the main potential benefits of a clustering of MEAs, namely efficiency gains and an increase in the coherence of international environmental governance, with the main challenges of international environmental policy, namely reaching agreement, implementing such agreement effectively and preventing/managing inter-institutional conflict. While clustering cannot be expected to make a significant direct contribution to addressing these challenges, it has a potential to economise and enhance the system of international environmental governance with positive indirect effects promoting better international environmental protection in the longer term.     

Generating Usable Knowledge through an Experimental Approach to Public Administration

This introduction to the symposium on experimental methods in public administration shows how using experimental methods generates not only research that is empirically credible, but also relates to the real world of public administration. The ten articles in the symposium subject classic public administration theories or hypotheses that have been generated in nonexperimental research to rigorous testing using experimental methods. The first group of articles consists of studies with citizens who interact with government. The second group consists of three studies with public officials.     

The Effects of Environmental Exposure on the Optical,Physical, and Chemical Properties of Manufactured Fibers of Natural Origin

Manufactured fibers derived from natural origins include viscose rayon, azlon, and polylactic acid (PLA). A 2‐year study was conducted to document any changes these fibers undergo as a result of exposure to various environmental conditions. Fabric swatches representing each fiber type were exposed to freshwater, saltwater, heat, cold, ultraviolet light, or composter conditions. Fibers from the swatches were periodically analyzed using polarized light microscopy and Fourier transform infrared microspectroscopy. Fiber solubility and melting‐point behavior were measured every 6 months. Except for the complete degradation of viscose rayon in the composter, saltwater, and freshwater environs, no changes in the optical properties, infrared spectra, solubility, or melting points of the remaining fibers in any of the environments were observed. However, microscopic morphological changes were observed in fibers from two azlon swatches submerged in freshwater and saltwater, two PLA swatches exposed to ultraviolet light, and two viscose rayon swatches exposed to ultraviolet light.     

Zwischen „der Eurokratie“ und „den Leuten“: Zum Problem der professionellen Vermittlung von Europapolitik

EU politics is strongly shaped by the activities of experts and professional actors with special knowledge of EU-specific rules, standards, semantics and institutional procedures. These EU professionals serve as important transmitters and brokers of European affairs in national contexts. They bundle and represent interests, provide information on EU policy proposals or support local and national organizations in their attempts of obtaining EU funding. In this way, these specialized actors have an important intermediary position between the “Eurocracy” and national citizenries as well as local addressees of EU policymaking. Building on classical and contemporary sociological discussions on the problem of professionalization in politics and on interview data the article analyzes the activities of these actors and scrutinizes what particular practices and strategies of interest mediation and policy transfer look like. What types of transmission and mediation can be found? Can EU professionals really be regarded as mediators and transmitters between European and local interests, or should they rather be seen as a relatively closed and self-referential group of specialists using their special competences mainly for their own sake and for positioning themselves within closed expert circles? Which difficulties and limitations can be seen with regard to practices and strategies of mediation in contemporary EU affairs?     

The detection of clandestine graves in an arid environment using thermal imaging deployed from an unmanned aerial vehicle

The Middle East is one of the world regions that has frequently suffered from armed conflicts that resulted in mass burials. However, the detection of clandestine graves in such an arid environment by deploying remote sensing payload on unmanned aerial vehicles (UAVs) has received little attention. The present study used a UAV equipped with a thermal sensor aimed at narrowing down the search area of possible gravesites in the arid climate of Kuwait. The enclosed research area, which includes both control and experimental mass graves, was imaged for 18 months. The variation in topsoil temperature and soil moisture between the graves and their surroundings was evaluated. The results of the analysis demonstrated the effectiveness of thermal imaging techniques in detecting heat produced from buried sheep carcasses and detecting the change in grave soil moisture for our research environment for 7 and 10 months, respectively. The buried animals significantly influenced the topsoil temperature (p = 0.044), while the height from which the images were captured had an insignificant effect on the measured temperature within the range tested (p = 0.985). Furthermore, there was a negative correlation (−0.359) between grave temperature and the calculated soil moisture. The results from these cost- and time-effective search methods presented in this study confirm their potential for the detection of burial sites in an arid environment.     

Determination of vehicle speed from recorded video using the open-source software Kinovea

Video devices of different kind often record traffic accidents, including vehicle-pedestrian collisions and hit-and-run accidents. In these cases, the vehicle speed is valuable information because it can assist the investigators in an accident reconstruction. This paper examines the use of Kinovea, an open-source video annotation tool designed for sport analysis, to estimate vehicle speed in forensic videos. Kinovea does not require a complex methodology, and it can be used to make the calculation easily. A series of vehicle driving experiments using an appropriately calibrated speed radar system (so called Scout Speed) were carried out, and measurements were compared with the estimated speed. In controlled conditions, the comparison of Scout reference speed and calculated average vehicle speed by means of Kinovea found an average difference of 0.43 km/h, with a margin of error of ±0.64 km/h. In addition, further preliminary tests were carried out to check the reliability of the measurements under lower resolution conditions. Also, in these cases the calculations were in line with the ground truth. Therefore, in the tested conditions, Kinovea demonstrated to be an easy and reliable tool available for forensic video examiners. Further tests need to be conducted in order to address the applicability of the measurement technique with true CCTV/surveillance video recordings.     

Development and validation of a LC–MS/MS method for analysis of vortioxetine in postmortem specimens. First data from an authentic case

Vortioxetine is an antidepressant recently licensed in USA and EU for the treatment of major depressive disorder. Neither fatal case due to overdose nor data about postmortem concentrations on blood or other specimens have been reported. The aims of this study were the development and validation of a method for vortioxetine analysis by Liquid Chromatography Tandem Mass Spectrometry (LC–MS/MS) in postmortem samples and its application in an authentic case. The method was validated and applied on blood, vitreous humor, bile, brain, liver, kidney, and gastric content. After protein precipitation, the supernatant was directly injected into LC–MS/MS. Analysis was carried out by Multiple Reaction Monitoring (MRM) mode. The authentic case concerned a 38 years-old woman, affected by depression, who was found hanged at home. The method determined an acceptable sensitivity, selectivity, linearity, precision, and accuracy for all matrices. No interference was shown for all matrices. The matrices do not significantly reduce the peak intensity of vortioxetine. No carryover was shown. Toxicological analysis of the authentic case showed vortioxetine in blood (234 ng/ml), vitreous humor (10.5 ng/ml), brain (490 ng/g), lung (479 ng/g), liver (3751 ng/g), kidney (798 ng/g), bile (2267 ng/ml) and gastric content (253 ng/ml). Our case suggests that even at blood concentrations of vortioxetine equal to 234 ng/ml, the subject was able to stage and carry out the hanging. Vortioxetine concentrations found in the other cadaveric samples (biological fluids, organs, and gastric content) may be helpful to evaluate further similar comparable cases.     

Death by compaction in a robotic dumpster

Robotic waste management automation systems are increasingly utilized around the globe as a user-friendly, ecological and hygienic alternative to waste disposal, simultaneously reducing the volume and frequency of waste collection. The present paper aims to report a case of death by compaction in an automated robotic waste management system and review relevant literature on compactor-related fatalities. The unusual fatal accident involved a 37-year-old male citizen who deliberately entered the robotic dumpster to retrieve his accidentally discarded medication. Upon entering the robotic chamber, the compaction system was automatically activated, although all safety measures were in full operation. This paper highlights the lack of standardized reporting on compactor-related mortality, which however is of importance both in terms of its social impact and public safety. These deaths occur rarely, in scattered areas of the globe, associated with various situations (e.g., occupational fatalities, homeless people, infanticide) and trash compactors of different types, technology, age, maintenance quality, warning signage and safety interlocks. In all previously reported fatalities, the technology involved was considerably older (as in conventional waste containers, garbage compaction trucks, chute-fed compactors in buildings, etc.). The case described in the present report is a rare event in both literature and international news coverage as it encompasses a fully automated technology intended for unsupervised, direct use by the public being located in public spaces where all citizens can interact with it. The aim of this report is to raise awareness and improve knowledge about safety parameters so that similar incidents can be avoided in the future.     

Deep learning for sex determination: Analyzing over 200,000 panoramic radiographs

The objective of this study is to assess the performance of an innovative AI-powered tool for sex determination using panoramic radiographs (PR) and to explore factors affecting the performance of the convolutional neural network (CNN). The study involved 207,946 panoramic dental X-rays and their corresponding reports from 15 clinical centers in São Paulo, Brazil. The PRs were acquired with four different devices, and 58% of the patients were female. Data preprocessing included anonymizing the exams, extracting pertinent information from the reports, such as sex, age, type of dentition, and number of missing teeth, and organizing the data into a PostgreSQL database. Two neural network architectures, a standard CNN and a ResNet, were utilized for sex classification, with both undergoing hyperparameter tuning and cross-validation to ensure optimal performance. The CNN model achieved 95.02% accuracy in sex estimation, with image resolution being a significant influencing factor. The ResNet model attained over 86% accuracy in subjects older than 6 years and over 96% in those over 16 years. The algorithm performed better on female images, and the area under the curve (AUC) exceeded 96% for most age groups, except the youngest. Accuracy values were also assessed for different dentition types (deciduous, mixed, and permanent) and missing teeth. This study demonstrates the effectiveness of an AI-driven tool for sex determination using PR and emphasizes the role of image resolution, age, and sex in determining the algorithm's performance.