Climate change and plant species composition and community structure in the central grassland region of North America. Climate change and plant species composition and community structure in the central grassland region of North America.Precipitation and temperature are recognized... KM Byrne - Colorado ...
Water, water everywhere... integrated riparian research in the North Central Region. 来自 Semantic Scholar 喜欢 0 阅读量: 33 作者: LM Westphal 摘要: Riparian areas are important for many reasons including timber, residential areas, biodiversity, recreation, and industry. Because of the intricate ...
At the national level, Kuwait had higher DALYs for males, which may be due to population aging, as the female population has not aged to the point of being at an increased risk of vascular events, such as stroke. Compared to other countries, Afghanistan, Yemen and Iraq had higher mortality...
Regional observational networks have also been established for shorter periods of time. At select sites in the Southeastern Aerosol Research and Characterization (SEARCH) network [72], a more highly resolved approach has produced continuous 5-min observations of NH3since 2007 [150]. The NH3concentrati...
Air Canada is the only international network carrier in North America to receive a Four-Star ranking according to independent U.K. research firm Skytrax, which also named Air Canada the 2017 Best Airline in North America. Air Canada was also named the 2018 ...
Ammonium salt is an important component of particulate matter with aerodynamic diameter less than 2.5 µm (PM2.5) and has significant impacts on air quality, climate, and natural ecosystems. However, a fundamental understanding of the conversion kin
To support the global strategy to reduce risk factors for obesity, we synthesized the evidence on physical activity (PA) and sedentary behaviour in the Middle East and North Africa (MENA) region. Our systematic overview included seven systematic reviews
North America’s road network first began to offer serious competition to the railways afterWorld War I. The U.S. government has since financed more than 300,000 miles (483,000 km) of transcontinental highways, including more than 40,000 miles (64,000 km) of limited-access multilane roads....
The size of the pre-Columbian aboriginal population of North America remains uncertain, since the widely divergent estimates have been based on inadequate data.Luis de Velasco, a 16th-century viceroy ofNew Spain(Mexico), put the total for the West Indies, Mexico, and Central America at about ...