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U.S. policy should encourage highly skilled, foreign Ph.D. students to stay, CU-led study finds

By Guest PostNovember 4, 2013Education, Politics, Scienceahmed mushfiq mobarak, boulder, congress, economic growth, eric t stuen, foreign phd students, green card, highly skilled, investment visa, journal science, keith maskus, permanent residence, scientific discovery, senate bill, university of colorado, us policy, us residency, us university

Attracting more talented foreign students to study at U.S. universities and encouraging them to launch entrepreneurial ventures here could help “revitalize innovation and economic growth” in this country, a trio of economists led by University of Colorado Boulder Professor Keith Maskus concludes.

Maskus and co-authors Ahmed Mushfiq Mobarak, associate professor at the Yale School of Management, and Eric T. Stuen, assistant professor at the University of Idaho College of Business and Economics, make this case in the Policy Forum of the Nov. 1 edition of the journal Science. (more…)

Poor concentration: Poverty reduces brainpower needed for navigating other areas of life

By Guest PostSeptember 4, 2013Scienceanandi mani, cognitive function, easy, eldar shafir, financial woe, hard, harvard university, ifmr trust, India, iq, jiaying zhao, journal science, mental tax, money situation, new jersey, poor concentration, poverty reduces brainpower, scenario, sendhil mullainathan, university of warwick in britain

Poverty and all its related concerns require so much mental energy that the poor have less remaining brainpower to devote to other areas of life, according to research based at Princeton University. As a result, people of limited means are more likely to make mistakes and bad decisions that may be amplified by — and perpetuate — their financial woes.

Published in the journal Science, the study presents a unique perspective regarding the causes of persistent poverty. The researchers suggest that being poor may keep a person from concentrating on the very avenues that would lead them out of poverty. A person’s cognitive function is diminished by the constant and all-consuming effort of coping with the immediate effects of having little money, such as scrounging to pay bills and cut costs. Thusly, a person is left with fewer “mental resources” to focus on complicated, indirectly related matters such as education, job training and even managing their time. (more…)

Nitrogen From Humans Pollutes Remote Lakes For More Than A Century

By Guest PostJanuary 4, 2012Environmentacid rain, agricultural fertilizers, alexander wolfe, Anthropocene, aquatic archeology, atmosphere, atmospheric currents, biologically active nitrogen, bottom deposits, carbon, chemical composition, chemical signals, climate, daniel schindler, double whammy, earth, effects of pollution, excess nitrogen, fertilizer use, fingerprint, global biogeochemical cycles, gordon holtgrieve, high lake, historical changes, human activities, human derived nitrogen, journal science, lakes, natural sources of nitrogen, new geological era, nitrogen, nitrogen characteristics of lake sediments, nitrogen cycle, nitrogen pollution, northern europe, northern hemisphere, peter leavitt, planetary scale changes, remote ecosystems, smog, southwest alaska, statistical models, university of Alberta, university of washington, us rocky mountains, vital nutrient for life, water pollution

Nitrogen derived from human activities has polluted lakes throughout the Northern Hemisphere for more than a century and the fingerprint of these changes is evident even in remote lakes located thousands of miles from the nearest city, industrial area or farm.

The findings, published in the journal Science Dec. 16, are based on historical changes in the chemical composition of bottom deposits in 36 lakes using an approach similar to aquatic archeology. More than three quarters of the lakes, ranging from the U.S. Rocky Mountains to northern Europe, showed a distinctive signal of nitrogen released from human activities before the start of the 20^th century, said Gordon Holtgrieve, a postdoctoral researcher at University of Washington School of Aquatic and Fishery Sciences and lead author of the report. The UW and a dozen other research institutions contributed to the research. (more…)

Tag Archives: journal science

U.S. policy should encourage highly skilled, foreign Ph.D. students to stay, CU-led study finds

Poor concentration: Poverty reduces brainpower needed for navigating other areas of life

Nitrogen From Humans Pollutes Remote Lakes For More Than A Century