data – Page 13 – Shamskm: A site to exchange knowledge and solutions

Scanning the Brain for Impending Error

By Guest PostApril 22, 2012Scienceactivity, adaptation, algebra, animal watch, brain wave, canada, carole beal, cognitive, computer science, data, dissertation, earner, eeg, electroencephalography, english language, fatigue, federico cirett, july, Mexico, mistake, montreal, new technology, personalization, san diego, sat exam, sista, stress, ua, university of arizona, user modeling

UA computer science doctoral student Federico Cirett is using new technology to predict, in advance, when people will make a mistake. He’s been testing subjects taking the SAT exam in math.

Our bodies and brains tend to give us good cues about when we are becoming stressed, fatigued or overwhelmed.

But what if, with near exact precision, you could predict when heightened levels of fatigue were about to cause you to make a mistake?

University of Arizona doctoral student Federico Cirett believes he’s found a way – and with about 80 percent accuracy. (more…)

Cosmic Ray Mystery

By Guest PostApril 19, 2012Scienceactive galaxies, Antarctica, array of detector, australia, bakhtiyar ruzybayev, barbados, belgium, black hole, canada, charged particle, chris elliott, cosmic ray, cosmic ray protons, data, density of radiation, detector, earth, energy, fermi satellites, fireballs, francis halzen, gamma ray bursts, Germany, ghostly nature, glacial ice, grbs, greg sullivan, icecube, icetop, james roth, Japan, katie shirey, NASA, national science foundation, neutrinos, new zealand, nsf, production, proton, pyramid of giza, south pole, Sweden, swift, switzerland, telescope, thomas gaisser, universe, university of delaware, university of wisconsin, US

Massive detector homes in on cosmic ray production

IceCube, an international collaboration involving University of Delaware scientists, is shedding new light on cosmic ray production.

Although cosmic rays were discovered 100 years ago, their origin remains one of the most enduring mysteries in physics. Now, the IceCube Neutrino Observatory, a massive detector in Antarctica, is homing in on how the highest energy cosmic rays are produced. (more…)

Feelings of Immaturity Accompany Alcohol Misuse into Adulthood, Say MU Researchers

By Guest PostApril 17, 2012Culture, Generalage group, alcohol use, andrew littlefield, behavior, cocktail, data, kenneth sher, mature, mature out, peter pans, rachel winograd, sense of immaturity, university of missouri, young adult

*Discovery Could Improve Substance Abuse Treatment*

COLUMBIA, Mo. – Tipping back one too many cocktails during an individual’s early 20s doesn’t correlate to a personal sense of immaturity; however if this habit doesn’t stop as they reach age 30, young adults can feel psychologically underdeveloped, according to a University of Missouri study. Helping young adults acknowledge their mental impulse to “sober up” as they mature can improve substance abuse intervention programs.

“When a heavy drinking 30-year-old comes in for therapy and says he doesn’t feel like an adult, we can present this study and suggest that cutting back on alcohol could help him feel more mature,” said lead researcher Rachel Winograd, a doctoral student in psychology at MU. (more…)

Report: Higher Ed Holds Key to Boost Arizona Economy

By Guest PostMarch 22, 2012Economyarizona, arizona legislature, data, Economy, education, financial cuts, florida, francisco marmolejo, human capital, immigration, jaana puukka, key issue, marshall plan, oecd, regional growth, southern arizona, successful model, tucson, university of arizona, western hemispheric programs

A multi-year report says the UA is a driver in the state’s economic development, but more coordination is needed among schools, business and the Legislature.

The University of Arizona and the state’s other colleges and universities have what it takes to produce the expertise needed to improve Arizona’s economy, says an international agency that has been monitoring the region for several years. (more…)

U.S. Citizenship May Be Determined At Random

By Guest PostMarch 12, 2012Politicsact, americans, civics knowledge, data, fate, immigrant, immigration officer, immigration services, michigan state university, naturalization, noncitizenship, paula winke, sat, test, united states, us citizenship, uscis

EAST LANSING, Mich. — The fate of nearly half a million immigrants hoping for U.S. citizenship may have been determined randomly, at least in part, according to a new study by a Michigan State University researcher who found the high-stakes civics test isn’t a reliable measure of civics knowledge.

To be awarded citizenship, immigrants must correctly answer six of 10 questions on the verbally administered civics portion of the U.S. Naturalization Test, said Paula Winke, assistant professor of second language studies. (more…)

NASA Map Sees Earth’s Trees in a New Light

By Guest PostFebruary 19, 2012Environment, Scienceaustralia, caltech, carbon, carbon cycle, climate change, cloud, data, earth, effects of topography, eucalyptus, flowering plants, forest, forest canopy, forest habitat, global map of forest height, height, high resolution map, icesat, laser pulse measurements, lidar, light detection and ranging, marc simard, modis, monitor, NASA, new zealand, satellites, south latitude, southern tropical forests, Space, spatial modeling, spatial resolution, trmm sensors, vegetation, worldclim database

PASADENA, Calif. – A NASA-led science team has created an accurate, high-resolution map of the height of Earth’s forests. The map will help scientists better understand the role forests play in climate change and how their heights influence wildlife habitats within them, while also helping them quantify the carbon stored in Earth’s vegetation.

Scientists from NASA’s Jet Propulsion Laboratory, Pasadena, Calif.; the University of Maryland, College Park; and Woods Hole Research Center, Falmouth, Mass., created the map using 2.5 million carefully screened, globally distributed laser pulse measurements from space. The light detection and ranging (lidar) data were collected in 2005 by the Geoscience Laser Altimeter System instrument on NASA’s Ice, Cloud and land Elevation Satellite (ICESat). (more…)

‘Explorers’ Use Uncertainty And Specific Area of Brain

By Guest PostFebruary 11, 2012Scienceambiguity, architecture, bradley doll, brain, brown university, cognitive control, computational power, data, david badre, decision making strategy, explorers, function, functional architecture, mathematical model, michael frank, mri scanner, mystery, nicole long, nonexplorers, rostrolateral prefrontal cortex, status quo, thought process, uncertainty, virtual clock

*As they try to find the best reward among options, some people explore based on how uncertain they are about the outcome of the options. Those who employ that thought process, unlike people who use other strategies, uniquely harness the computational power of the rostrolateral prefrontal cortex, a new study finds.*

PROVIDENCE, R.I. [Brown University] — Life shrouds most choices in mystery. Some people inch toward a comfortable enough spot and stick close to that rewarding status quo. Out to dinner, they order the usual. Others consider their options systematically or randomly. But many choose to grapple with the uncertainty head on. “Explorers” order the special because they aren’t sure they’ll like it. It’s a strategy of maximizing rewards by discovering whether as yet unexplored options might yield better returns. In a new study, Brown University researchers show that such explorers use a specific part of their brain to calculate the relative uncertainty of their choices, while non-explorers do not. (more…)

3-D Laser Map Shows Earthquake Zone Before and After

By Guest PostFebruary 10, 2012Science2010 mexicali earthquake, 3d post earthquake image, agricultural fields, arizona state university, austin elliott, borrego fault, China, colorado river, colorado river delta, crust, data, davis, desert floor, earth science, earthquake, earthquake zone, earthscope, fault, fault behavior, fault rupture, fault surface ruptures, floodplain, geologist, greg anderson, indiviso fault, jing liu zeng, john fletcher, ken hudnut, laser pulses, lidar, light detection and ranging, magnitude, mexicali, Mexico, michael oskin, multi fault earthquake, national science foundation, ncalm, off fault deformation, orlando teran, pescadores fault, peter gold, post earthquake topography, pre earthquake, ramon arrowsmith, ridge, rock sample, san andreas, scarp, seismic hazard, seismic wave, united states, university of california

*Geologists learn how earthquakes change the landscape — down to a few inches*

Geologists have a new tool to study how earthquakes change the landscape–down to a few inches. It’s giving scientists insights into how earthquake faults behave.

In this week’s issue of the journal Science, a team of scientists from the United States, Mexico and China reports the most comprehensive before-and-after picture yet of an earthquake zone, using data from the magnitude 7.2 event that struck near Mexicali, Mexico, in April 2010. (more…)

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