Description: This article discusses the annual variation of abundance and composition in forest bird assemblages on Navarino Island, Cape Horn Biosphere Reserve, Chile. Abstract: The structure and dynamics of avian communities in the temperate forests of southern South America have been generally studied during the breeding season (November - March), and reports about seasonal variations and migratory behavior of species are almost lacking. This study examined intra-annual variations on a monthly basis in bird species composition and abundance in the world's southernmost forested ecosystems, found in the Cape Horn Biosphere Reserve, Chile (55°S). Combining data obtained through point-count surveys, mist-netting, and checklist methods, the authors recorded a total of 34 bird species belonging to 20 families. Eighteen of these species were Passeriformes, and the most abundant year-round resident species were Thorn-tailed Rayadito (Aphrastura spinicauda) and Patagonian Sierra-Finch (Phrygilus patagonicus). The most abundant seasonal migrants species were White-crested Elaenia (Elaenia albiceps) and Southern House Wren (Troglodytes musculus). Point-count and mist-netting methods showed a reduction in species richness and abundance during winter, with one third of the bird assemblage absent. This proportion was lower than that documented for more northern Nothofagus forests. Additionally, the authors' data provided no evidence that intra-annual patterns of ...

Description: This article discusses anomalous diffusion and environment-induced quantum decoherence. Abstract: We study the anomalous diffusion resulting from the standard map in the so-called accelerating state, and we observe that it is determined by unusually large times of sojourn of the classical trajectories in the fractal region at the border between the chaotic sea and the acceleration island. The quantum-mechanical breakdown of this property implies a coherence among so slightly different values of momentum as to become much more robust against environment fluctuations than the quantum localization corresponding to normal diffusion.

Description: This article discusses the application of an ergonomically modified keyboard to reduce piano-related pain. The key width for the modern piano was established about 130 years ago. Before then, the key widths varied and were typically narrower than the modern piano as shown in Figure 1. During these early years it would have been normal for pianists to play and compose on different sizes of keyboards. In fact, technically challenging pieces written between 1750 and 1850 were probably composed using pianos with narrower keys underscoring Sakai's rationale as to why many modern pianists struggle with difficult piano techniques on a modern piano.1 Since the distance of an octave span became fixed around 1880, pianists have been dealing with the idea of a one-size-fits-all piano and the disappearance of optional key widths for the piano.

Description: Abstract: This article briefly outlines online counseling for readers who may be interested in delivering therapy via the internet. The article should very much be understood to be a beginner's primer based upon research literature and the personal recommendations of the authors. Readers will also benefit from several online resources for counselors mentioned throughout the article.

Description: This article discusses archiving web-published materials. Abstract: The Web-at-Risk project is a digital preservation project funded by the Library of Congress as part of the National Digital Information Infrastructure and Preservation Program. The project is developing a web archiving service to enable curators to build, store, and manage archived collections of web-published materials captured largely from US federal and state government agency web sites. In 2005 the project‟s 22 curators, as well as librarians and archivists working primarily in academic libraries (N=43), university researchers (N=7), and content providers (N=7) participated in a study to identify their needs in relation to web archiving. This paper summarizes the issues and challenges these groups face and discusses the need for collaborations among libraries and government entities for preserving web-published materials.