77 research outputs found
Confused, Frustrated, and Exhausted: Solving the U.S. Digital First Sale Doctrine Problem Through the International Lens
Users worldwide enjoy digital goods such as music and e-books on a daily basis. They have become a major part of people\u27s lives, with uses ranging from lighthearted entertainment to serious educational pursuits. In many cases, convenience and affordability make digital goods more preferable than their analog counterparts. However, users often cannot use digital goods as freely as they would analog goods. Courts, legislation, and businesses prohibit those users, accustomed to reselling unwanted hard-copy books or vinyl records, from reselling digital books and music. This confuses users as to what they can actually do with their digital goods. This Note proposes that the United States adopts a digital first sale doctrine based on normative principles pulled from E.U. and Canadian copyright law
Effect of Anthropogenic Landscape Features on Population Genetic Differentiation of Przewalski's Gazelle: Main Role of Human Settlement
Anthropogenic landscapes influence evolutionary processes such as population genetic differentiation, however, not every type of landscape features exert the same effect on a species, hence it is necessary to estimate their relative effect for species management and conservation. Przewalski's gazelle (Procapra przewalskii), which inhabits a human-altered area on Qinghai-Tibet Plateau, is one of the most endangered antelope species in the world. Here, we report a landscape genetic study on Przewalski's gazelle. We used skin and fecal samples of 169 wild gazelles collected from nine populations and thirteen microsatellite markers to assess the genetic effect of anthropogenic landscape features on this species. For comparison, the genetic effect of geographical distance and topography were also evaluated. We found significant genetic differentiation, six genetic groups and restricted dispersal pattern in Przewalski's gazelle. Topography, human settlement and road appear to be responsible for observed genetic differentiation as they were significantly correlated with both genetic distance measures [FST/(1−FST) and F′ST/(1−F′ST)] in Mantel tests. IBD (isolation by distance) was also inferred as a significant factor in Mantel tests when genetic distance was measured as FST/(1−FST). However, using partial Mantel tests, AICc calculations, causal modeling and AMOVA analysis, we found that human settlement was the main factor shaping current genetic differentiation among those tested. Altogether, our results reveal the relative influence of geographical distance, topography and three anthropogenic landscape-type on population genetic differentiation of Przewalski's gazelle and provide useful information for conservation measures on this endangered species
Geographische Informationssysteme : eine Einleitung
No abstract available
Umweltanalyse mit GIS und Fernerkundung : Einleitung zum Themenheft
No abstract available
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