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1. |
Record Nr. |
UNINA990007164270403321 |
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Autore |
Racca, Gabriella M. |
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Titolo |
I sottosegretari di Stato : tra politica e amministrazione / Gabriella M. Racca |
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Pubbl/distr/stampa |
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Descrizione fisica |
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Locazione |
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Collocazione |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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2. |
Record Nr. |
UNINA9910971299603321 |
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Titolo |
Asphalt surfaces as ecological traps for water-seeking polarotactic insects : how can the polarized light pollution of asphalt surfaces be reduced? / / Gabor Horvath ... [et al.] |
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Pubbl/distr/stampa |
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New York, : Nova Science Publishers, c2010 |
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ISBN |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (59 pages) |
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Collana |
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Environmental remediation technologies, regulations and safety |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Pavements, Asphalt - Environmental aspects |
Roads - Design and construction |
Light pollution |
Phototropism in animals |
Insects - Effect of light on |
Polarization (Light) |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Introduction : polarotactic insects attracted to asphalt roads and polarized light pollution of asphalt surfaces -- Method : measuring the polarization patterns of asphalt surfaces by imaging polarimetry -- Results -- Discussion -- Conclusions. |
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Sommario/riassunto |
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The surface of dry or wet asphalt roads reflect partially linearly polarized light, the degree of linear polarization p of which depends on the darkness and roughness of asphalt: the darker and/or the smoother the asphalt, the higher the p of light reflected from it. If the asphalt is sunlit and the direction of view is parallel to the solar-antisolar meridian, then the direction of polarization of asphalt-reflected light is horizontal. In this case the asphalt surface can attract water-seeking aquatic insects, because they detect water by means of the horizontal polarization of light reflected from the water surface. This phenomenon is called positive polarotaxis. This new book proposes the use of these remedies on asphalt roads running near emergence sites of endangered aquatic insects, especially in the vicinity of wetlands, rivers and lakes. |
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