—Shortleaf pine (Pinus echinata Mill.) is the only naturally-occurring pine distributed throughout the Ozark-Ouachita Highlands. Once dominant on south-facing and ridgetop stands and important in mixed stands, it is now restricted to southand southwestfacing slopes in the Ouachita and southern Ozark Mountains, and to isolated pure and mixed stands in the northern Ozarks. Its position as a minor...

In an earlier paper^ I described the new genus Brooksma from a series of sediments in southeastern Alaska tentatively referred to the upper Silurian. In that paper will be found a brief discussion of the faunal affinities of the series. A more detailed study of the Brooksina fauna together with the famias of lower and liighei horizons strengthens the belief that the formations in question shoul...

Angeles Rivers and Mountains Conservancy, as part of the " Green Visions Plan for 21st Century Southern California " project. The authors thank Christina Li for providing assistance with the statistical analysis. The authors would also like to thank Frank Simpson for his comments on this paper. Thanks to the Green Visions summer interns of 2005 for the photos on the front cover. The mission of ...

BACKGROUND Tuberculosis (TB) remains a major global health problem and is the leading killer due to a single infectious disease. Mobile health (mHealth)-based tools such as smartphone apps have been suggested as tools to support TB control efforts (eg, identification, contact tracing, case management including patient support). OBJECTIVE The purpose of this review was to identify and assess t...

Existing sequential feature-based registration algorithms involving search typically either select features randomly (eg. the RANSAC[8] approach) or assume a predefined, intuitive ordering for the features (eg. based on size or resolution). This paper presents a formal framework for computing an ordering for features which maximizes search efficiency. Features are ranked according to matching a...

Thanks to the Los Angeles County Parks and Recreation website for cover photos. the mission of the green Visions Plan for 21st Century Southern California is to offer a guide to habitat conservation, watershed health and recreational open space for the Los Angeles metropolitan region. the Plan will also provide decision support tools to nurture a living green matrix for southern California. Our...

Climate-related changes in glacierized watersheds are widely documented, stimulating adaptive responses among the 370 million people living in glacier-influenced watersheds as well as aquatic and riparian ecosystems. The situation denotes important interdependencies between science, society, and ecosystems, yet integrative approaches to the study of adaptation to such changes remain scarce in b...

Measuring the dispersal of wildlife through landscapes is notoriously difficult. Recently, the categorical least cost path algorithm that integrates population genetic data with species distribution models has been applied to reveal population connectivity. In this study, we use this method to identify the possible dispersal corridors of five plant species (Castanopsis tibetana, Schima superba,...