Rangelands are uncultivated lands that include grasslands, savannahs, steppes, shrub lands, deserts and tundra. The native vegetation on rangelands is predominantly grasses, forbs and shrubs (Kothmann, 1974). Rangelands cover 31 percent of the land surface area of the United States (Havstad et al., 2009), and up to half of the land surface area worldwide (Lund, 2007). Most land areas that are n...

INCE Kerridge's incisive intervention into the field of agrarian history in his article of 1955 regarding the enclosure movement in the Tudor and early-Stuart period, anyone who ventures there must preface their remarks by acknowledgement of the force of Kerridge's argument. 1 As a result, little confidence may be retained in the basis of analysis of enclosure in that period the statistics whic...

SER virus, a paramyxovirus closely related to simian virus 5, induces no syncytium formation. The SER virus F protein has a long cytoplasmic tail (CT), and truncation or mutations of the CT result in enhanced syncytium formation (S. Seth, A. Vincent, and R. W. Compans, J. Virol. 77:167-178, 2003; S. Tong, M. Li, A. Vincent, R. W. Compans, E. Fritsch, R. Beier, C. Klenk, M. Ohuchi, and H.-D. Kle...

Claus Beier,* Carl Beierkuhnlein, Thomas Wohlgemuth, Josep Penuelas, Bridget Emmett, Christian Körner, Hans de Boeck, Jens Hesselbjerg Christensen, Sebastian Leuzinger Ivan A. Janssens and Karin Hansen Abstract Climatic changes, including altered precipitation regimes, will affect key ecosystem processes, such as plant productivity and biodiversity for many terrestrial ecosystems. Past and ongo...

of natural populations (Manel et al. 2003, Segelbacher et al. 2010). Landscape genetics is a synthetic discipline that allows explicitly testing the infl uence of diff erent landscape features on gene fl ow in a spatially explicit framework (Manel et al. 2003, Segelbacher et al. 2010). Th is approach primarily aims at quantifying the resistance of landscape features to movement in order to dete...

1. Zilberberg MD, Shorr AF, Kollef MH. Increase in adult Clostridium diffi cile– related hospitalizations and case-fatality rate, United States, 2000–2005. Emerg Infect Dis. 2008;14:929–31. DOI: 10.3201/ eid1411.080337 2. Cohen SA, Naumova EN. Population dynamics in the elderly: the need for ageadjustment in national biosurveillance systems. In: Zeng D, Gotham I, Komatsu K, Lynch C, Thurmond M,...

Efficient exploration and development of oil gas resources in complex geological environments continue to pose significant challenges for the energy industry. The localization extraction reservoirs basins with structures, developed faults, scattered sedimentary sand bodies are topics international interest. One such basin, Hailar Basin northeastern China, represents a environment heterogeneous ...