1,259 research outputs found
The role of protected areas for rural tourism: a depiction of Swiss and Italian cases
No full textThis study aims to verify how and at what extent protected areas can contribute to protect and enhance the
production of high quality regional products through the promotion of particular niche tourism. The reasoning is
based on the assumption according to which the interaction between environmental policies, agriculture and
destination promotion generates a situation that fosters quality in local development of mountainous regions of
Italy and Switzerland and maintains agricultural biodiversity.
The research adopts a depictive comparative approach. Referring to the two different models of parks
management in Switzerland and in Italy, the authors focus their attention on some destinations in the protected
areas of Gran Sasso - Laga National Park and UNESCO Biosphäre Entlebuch. Thereby the enhancement of high
quality productions in rural tourism is considered
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High-resolution spectroscopic diagnostics of very high-temperature plasmas in the hard x-ray regime
No full textMotivated by the need for establishing a reliable database useful for the application of x-ray spectroscopic tools for the diagnostic of very high temperature plasmas, high-resolution crystal spectrometer measurements have been performed investigating the characteristic K-shell radiation of highly charged krypton and xenon. The measurements, which have been performed at the Electron-Beam-Ion-Trap (EBIT) facility of the Lawrence Livermore National Laboratory, include the investigation of the n = 2 {yields} 1 transitions in heliumlike krypton (Kr{sup 34+}) and innershell excited lithiumlike krypton (Kr{sup 33+}) utilizing a conventional reflection-type crystal spectrometer of von Hamos geometry. The electron-excitation-energy selective measurements map the contribution of the dielectronic recombination lines providing the means of accurate interpretation of the line profiles of the characteristic K{alpha} x-ray emission of plasmas. The high-resolution measurements of the n = 2 {yields} 1 transitions in heliumlike xenon (Xe{sup 52+}) and hydrogenlike xenon (Xe{sup 53+}) were based on a new transmission-type crystal spectrometer of DuMond geometry. The resolving power of the developed spectrometer was sufficient for charge state specific observation allowing the determination of the electron-impact excitation cross section for the hydrogen- and heliumlike K{alpha} transitions. The disagreement with theoretically predicted values is a measure of the magnitude of the Breit interaction for the highly charged high-Z ions
Recent AMADEUS Studies of Low-Energy K- —Nucleus/Nuclei Interactions
No full textWe briefly report the recent results obtained by the AMADEUS collaboration on experimental studies of the K low-energy interactions with light nuclei and outline the future perspectives
Tinjauan klinis atas hasil pemeriksaan laboratorium : clinical intertation of laboratory tests,ed.9/ Widmann
No full textxxxii, 602 hal.; 22 cm
EXA 2011 : Proceedings of the International Conference on Exotic Atoms and Related Topics
No full textProceedings of the International Conference on Exotic Atoms and Related Topics (EXA 2011) held in Vienna, Austria, September 5-9, 2011 P. Bühler, O. Hartmann, J. Marton, K. Suzuki, E. Widmann and J. Zmeskal (Eds.) Now the research in exotic atoms has a remarkable history of more than 50 years. Enormous success in the understanding of fundamental interactions and symmetries resulted from the research on these tiny objects at the femtoscale. This volume contains research papers on recent achievements and future opportunities of this highly interdisciplinary field of atomic, nuclear, and particle physics. The Proceedings are structured according to the conference session topics: Kaon-Nucleus and Kaon-Nucleon Interactions, Antihydrogen and Fundamental Symmetries, Hadronphysics with Antiprotons, Future Facilities and Instrumentation, Low energy QCD. Reprint from Hyperfine Interactions vol. 209, 210 and 21
The influence of local particles on classifier performance for pollen monitoring
No full textPollen detection through automatic instruments has significantly improved over the recent years. Hirst-type traps start to be complemented with automatic instruments throughout Europe. Instead of the traditional identification of airborne pollen particles using light microscopy, data of the particles is collected and subsequently analysed by an AI-classifier. As an airflow-cytometer, SwisensPoleno instruments capture a fingerprint of each particle in-flight. Holography images, as well as fluorescence spectral data, as for SwisensPoleno Jupiter, are collected to classify measured pollen grains flowing through the device in real-time. Labelled datasets of each pollen-type of interest are required for the training of a new classifier. These are generated by collecting fresh and pure pollen from plants and aerosolizing it directly into a SwisensPoleno instrument under controlled conditions. New classifiers are evaluated by correlating concentrations determined by the automatic instrument with daily concentrations of co-located Hirst-type traps. To evaluate the performance of classifiers throughout Europe, multiple sites in different countries are assessed. Using results of the latest pollen classifier “Swisens (2025)”, based on holography images and fluorescence spectra, we show here how different locations of the SwisensPoleno and different input data can affect the resulting correlations to Hirst data, as well as the Mean Absolute Error (MAE). Differences in performance are expected between sites which are far apart, due to many factors such as differing geography, local climatic conditions and flora. Bad performance may arise from unknown interfering particles, only abundant at one specific site, and thus not included in the training datasets. Our results demonstrate that this effect can also occur at a sub-regional scale, in sites only 30 km apart (Figure 1A), installed with the same instrument, and analysing data with the same classifier. Fraxinus pollen concentrations for P48 (Bolzano, Italy) correlate very well with a co-located Hirst (Figure 1B); that isn’t true for P46 (San Michele all’Adige, Italy), where strong interference from other particles is present during late May and beginning of June (Figure 1C). Interfering particles, similar to the target taxa, require site specific fine-tuning, e.g. in form of additional filters specifically excluding the interfering particles. In conclusion, while automatic pollen detection instruments show great promise in improving accuracy and efficiency, our findings highlight the importance of site-specific adaptations to address geographic and environmental variability, ensuring reliable performance across diverse locations
Tinjauan klinis atas hasil pemeriksaan laboratorium : clinical intertation of laboratory tests,ed.9/ Widmann
No full textxxxii, 602 hal.; 22 cm
Tinjauan klinis atas hasil pemeriksaan laboratorium : clinical intertation of laboratory tests,ed.9/ Widmann
No full textxxxii, 602 hal.; 22 cm
Tinjauan klinis atas hasil pemeriksaan laboratorium : clinical intertation of laboratory tests,ed.9/ Widmann
No full textxxxii, 602 hal.; 22 cm
Tinjauan klinis atas hasil pemeriksaan laboratorium : clinical intertation of laboratory tests,ed.9/ Widmann
No full textxxxii, 602 hal.; 22 cm
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