Suchergebnisse

Following the attacks of September 11, 2001, many agencies within the federal government began restricting some of their publicly available geospatial data and information from such sources as the World Wide Web. As time passes, however, decisionmakers have begun to ask whether and how such information specifically helps potential attackers, including terrorists, to select U.S. homeland sites and prepare for better attacks. The research detailed in this book aims to assist decisionmakers tasked with the responsibility of choosing which geospatial information to make available and which to rest

This groundbreaking book provides a new perspective on equality by highlighting and exploring affective equality, the aspect of equality concerned with relationships of love, care and solidarity. Drawing on studies of intimate caring, or 'love labouring', it reveals the depth, complexity and multidimensionality of affective inequality

Although scholars have long known that most Americans are woefully ignorant of foreign affairs (Almond 1960; Kriesberg 1949), they are uncertain about how the U.S. public's knowledge of international politics compares to that of people in other countries. We address this uncertainty with a study of citizens' knowledge of foreign affairs in five western democracies: Britain, Canada, France, Germany, and the United States. The focus is on the roles each country's mass media play in the process by which citizens learn about international politics. The study found that Germans are the most knowledgeable about international politics, citizens in Britain, Canada, and France displayed moderate knowledge, and Americans had the least knowledge. We conclude that people learn about foreign affairs due to their opportunity, defined by their location in the social structure, and their motivation, indexed by attention paid to news accounts of world politics. The better educated and more politically attentive citizens also proved to be more informed in each country, whereas citizens who most often watched popular television entertainment programs proved to be less informed about foreign affairs.

AbstractRestrictive practices are often used harmfully with children in institutional settings. Interventions to reduce their use do not appear to have been mapped systematically. Using environmental scanning, we conducted a broad‐scope mapping review of English language academic databases, websites and social media, using systematic methods. Included records (N = 121) were mostly from the United States and contained details of 82 different interventions. Children's participation was limited. Reporting quality was inconsistent, which undermined claims of effectiveness. Overall, despite a multitude of interventions, evidence is limited. Leaders should consider the evidence, including children's perspectives, before introducing poorly understood interventions into children's settings.

Manning, R. A.: Security in East Asia. - S. 21-32. Clad, J.: Security in Southeast Asia. - S. 33-39. Lavoy, P. R.: Security in South Asia. - S. 40-53. Albinski, H. S.: Security in the South Pacific region. - S. 54-64. Wiencek, D. G.: Nuclear and missile proliferation in Asia. - S. 67-87. Carpenter, W. M.; Wiencek D. G.: Maritime piracy in Asia. - S. 88-98. Olson, W. J.: Illegal narcotics in Southeast Asia. - S. 99-105. Baker, J. C.: Conflict potential of the South China Sea disputes. - S. 106-117. Vaughn, B.; McDonald, S. M.: Australia. - S. 121-145. Aung-Thwin, M.: Burma. - S. 146-154. Grove, P. C.: Cambodia. - S. 155-163. Sutter, R.: China. - S. 164-172. Limaye, S. P.: India. - S. 173-180. Haseman, J. B.: Indonesia. - S. 181-191. Carpenter, W. M.: Japan. - S. 192-201. Carpenter, W. M.: Laos. - S. 202-206. Wiencek, D. G.: Malaysia. - S. 207-214. Mitchell, M. J.: Mongolia. - S. 215-222. Vaughn, B.: New Zealand. - S. 223-239. Niksch, L. A.: North Korea. - S. 240-246. Ahmed, S.: Pakistan. - S. 247-254. Wiencek, D. G.: The Philippines. - S. 255-266. Carpenter, W. M.: Singapore. - S. 267-271. Cha, V. D.: South Korea. - S. 272-282. Thomas, M. A.: Sri Lanka. - S. 283-289. Van Vranken Hickey, D.: Taiwan. S. 290-297. Wiencek, D. G.: Thailand. - S. 298-304. Stern, L. M.: Vietnam. - S. 305-318

Aerodynamic canopy height (h(a)) is the effective height of vegetation canopy for its influence on atmospheric fluxes and is a key parameter of surface-atmosphere coupling. However, methods to estimate h(a) from data are limited. This synthesis evaluates the applicability and robustness of the calculation of h(a) from eddy covariance momentum-flux data. At 69 forest sites, annual h(a) robustly predicted site-to-site and year-to-year differences in canopy heights (R-2=0.88, 111site-years). At 23 cropland/grassland sites, weekly h(a) successfully captured the dynamics of vegetation canopies over growing seasons (R-2>0.70 in 74site-years). Our results demonstrate the potential of flux-derived h(a) determination for tracking the seasonal, interannual, and/or decadal dynamics of vegetation canopies including growth, harvest, land use change, and disturbance. The large-scale and time-varying h(a) derived from flux networks worldwide provides a new benchmark for regional and global Earth system models and satellite remote sensing of canopy structure. Plain Language Summary Vegetation canopy height is a key descriptor of the Earth surface and is in use by many modeling and conservation applications. However, large-scale and time-varying data of canopy heights are often unavailable. This synthesis evaluates the applicability and robustness of the calculation of canopy heights from the momentum flux data measured at eddy covariance flux tower sites (i.e., meteorological observation towers with high frequency measurements of wind speed and surface fluxes). We show that the aerodynamic estimation of annual canopy heights robustly predicts the site-to-site and year-to-year differences in canopy heights across a wide variety of forests. The weekly aerodynamic canopy heights successfully capture the dynamics of vegetation canopies over growing seasons at cropland and grassland sites. Our results demonstrate the potential of aerodynamic canopy heights for tracking the seasonal, interannual, and/or decadal dynamics of vegetation canopies including growth, harvest, land use change, and disturbance. Given the amount of data collected and the diversity of vegetation covered by the global networks of eddy covariance flux tower sites, the flux-derived canopy height has great potential for providing a new benchmark for regional and global Earth system models and satellite remote sensing of canopy structure. ; U.S. Department of Energy's Office of ScienceUnited States Department of Energy (DOE) [DE-SC0012456, DE-AC02-05CH11231] ; This study is supported by FLUXNET and AmeriFlux projects, sponsored by U.S. Department of Energy's Office of Science (DE-SC0012456 and DE-AC02-05CH11231). We thank the supports from AmeriFlux Data Team: Gilberto Pastorello, Deb Agarwal, Danielle Christianson, You-Wei Cheah, Norman Beekwilder, Tom Boden, Bai Yang, and Dario Papale, and Berkeley Biomet Lab: Siyan Ma, Joseph Verfaillie, Elke Eichelmann, and Sara Knox. This work uses eddy covariance and BADM data acquired and shared by the investigators involved in the AmeriFlux and Fluxnet-Canada Research Network. The site list and corresponding references are provided in the supporting information. We thank Claudia Wagner-Riddle, Andy Suyker, David Cook, Asko Noormets, Paul Stoy, and Brian Amiro for providing additional data. All actual canopy height data can be downloaded from AmeriFlux BADM. The R codes and aerodynamic canopy height data can be accessed at http://github.com/chuhousen/aerodynamic_canopy_height. ; Public domain authored by a U.S. government employee