Catálogo de publicaciones - revistas

<jats:p>The United States's aging flagship law for controlling toxic compounds is ripe for overhaul, and chemical companies—or some of them—want to play a major role in shaping what comes next.</jats:p>

<jats:p>Industry and regulators are embracing new technologies to move beyond slow, expensive, and perplexing animal tests.</jats:p>

<jats:p>Academia teaches technical skills, but scientists in the private sector say landing a job and thriving there is an education in itself.</jats:p>

<jats:p>The key challenge for reactor engineering is to establish the scientifically based sustainable technologies necessary for meeting the future energy, environmental, and materials needs of the world. This goal requires advancing our scientific understanding of multiscale kinetic transport interactions to enable better reactor choice and to ensure higher reactor and process efficiencies.</jats:p>

<jats:p>Core activities of process chemistry involve the synthesis of drug candidates at a scale that supports clinical evaluations and the creation of a manufacturing process that is safe, robust, and cost effective. Innovative problem solving has always been a key element in process chemistry and will be increasingly important for addressing emerging challenges in science, globalization, and commoditization. The acquisition and creation of platform chemical technologies that enable rapid problem solving through the use of high-throughput experimentation will continue to be an important focus going forward. Linking and deploying platforms throughout the discovery-development continuum is expected to enable drug discovery. Increasing collaboration with academia will also become more important for accessing technical solutions and providing the next generation of innovative problem solvers.</jats:p>

<jats:p>Synthetic polymers are vital to our society, affecting practically every aspect of modern life. The ubiquitous nature of these materials is a result of years of collaboration between basic and applied researchers across many disciplines, resulting in economic routes to materials that meet customer needs. These considerations are exemplified by recent developments in the synthesis of block copolymers from simple olefins. The practical application of creative chemistry has produced materials with a favorable balance of desirable polymer properties and process economics.</jats:p>

<jats:p>Replacing petroleum feedstock with biomass in the production of fuels and value-added chemicals carries considerable appeal. As in industrial chemistry more broadly, high-throughput experimentation has greatly facilitated innovation in small-scale exploration of biomass production and processing. Yet biomass is hard to transport, potentially hindering the integration of manufacturing-scale processes. Moreover, the path from laboratory breakthrough to commercial production remains as tortuous as ever.</jats:p>

<jats:p>The Kepler mission is performing at the level required to detect Earth-size planets orbiting solar-type stars.</jats:p>

<jats:title>The Melting Is in the Details</jats:title> <jats:p> Global sea level rises and falls as ice sheets and glaciers melt and grow, providing an integrated picture of the changes in ice volume but little information about how much individual ice fields are contributing to those variations. Knowing the regional structure of ice variability during glaciations and deglaciations will clarify the mechanisms of the glacial cycle. <jats:bold> Clark <jats:italic>et al.</jats:italic> </jats:bold> (p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" page="710" related-article-type="in-this-issue" vol="325" xlink:href="10.1126/science.1172873">710</jats:related-article> ) compiled and analyzed more than 5000 radiocarbon and cosmogenic surface exposure ages in order to develop a record of maximum regional ice extent around the time of the Last Glacial Maximum. The responses of the Northern and Southern Hemispheres differed significantly, which reveals how the evolution of specific ice sheets affected sea level and provides insight into how insolation controlled the deglaciation. </jats:p>