Tag Archives: arizona

UA’s Kate Kenski Tracks Election Through Talking Points, Tweets

By Guest PostOctober 22, 2012Politics2008 campaign, analyze, arizona, Barack Obama, bethany conway, colbert report, corey pavlich, daily show, democrat, democratic president, Economy, election, election season, Facebook, facebook page, factor, jon stewart, kate kenski, Media, mitt romney, money, naes, networking site, obama victory, political ads, political communication, political gaffes, political humor, Politics, polling data, polls, presidential candidate, republican, republican candidate, social media, tax season, Twitter, twitter follower, university

Kate Kenski, an associate professor in the UA communication department, is studying the 2012 election using talking points, Twitter feeds and also jokes.

Election season is to politics-watchers as tax season is to accountants. There are polls to follow, debates to dissect and political ads to analyze.

For Kate Kenski, an associate professor in the University of Arizona communication department and School of Government and Public Policy, election season provides a wealth of data that she analyzes to write and teach about public opinion and political communication.

For the 2012 election, Kenski is keeping a keen eye on whether the frequent explanations for wins and losses in previous campaigns hold true for this campaign. Will the economy be the determining factor? Or will candidate personality or message strategy tip the campaign in one candidate’s direction over the other’s? (more…)

Armchair Astronomers Find Planet in Four-Star System

By Guest PostOctober 16, 2012Scienceamerican, arizona, arxiv preprint, astronomical data, astronomical society, circumbinary planet, citizen scientist, cottonwood, debra fischer, discovery, earth, eclipsing star, Environment, four star, hawaii, jerome orosz, johns hopkins, keck telescopes, kepler spacecraft, kian jek, mauna kea, meg schwamb, NASA, neptune, nevada, orbit, ph1, phenomenon, planet, planet discovery, planet formation, planethunters, professional astronomer, radius, reno, robert gagliano, san diego, san francisco, server, star, state university, system, twin suns, university, website, yale

A joint effort of citizen scientists and professional astronomers has led to the first reported case of a planet orbiting twin suns that in turn is orbited by a second distant pair of stars.

Aided by volunteers using the Planethunters.org website, a Yale-led international team of astronomers identified and confirmed discovery of the phenomenon, called a circumbinary planet in a four-star system.

Only six planets are known to orbit two stars, according to researchers, and none of these are orbited by distant stellar companions. (more…)

UA Study Examines How News Spreads on Twitter

By Guest PostOctober 15, 2012Media, Technologyarizona, arstechnica, bbc, bbcbreaking, bbcworld, bloomberg, delicious, devi bhattacharya, digg, financial news, financial times, fireworks, Forbes, global news, guardian, mashable, microblogging website, network analysis, new york times, news agency, news articles, npr, online content, paulo goes, reddit, retweets, Reuters, social media, sudha ram, technology news, twitter account, twitter activity, twitter effectiveness, twitter feeds, university, us news, washington post, wired

A study of the Twitter activity of 12 major news agencies shows varying levels of success for the social network as a news-sharing tool, based on factors like article lifespan and number of retweets.

Nearly every major news organization has a Twitter account these days, but just how effective is the microblogging website at spreading news? That’s the question University of Arizona professor Sudha Ram set out to answer in a recent study of a dozen major news organizations that use the social media website as one tool for sharing their content.

The answer, according to Ram’s research, varies widely by news agency, and there may not be one universally applicable strategy for maximizing Twitter effectiveness. However, news agencies can learn a lot by looking at how their news diffuses once it is posted on Twitter, said Ram, McClelland Professor of Management Information Systems in the UA’s Eller College of Management. (more…)

Cambrian Fossil Pushes Back Evolution of Complex Brains

By Guest PostOctober 10, 2012Nature, Scienceancient animal, arachnids, arizona, arthropods, brain anatomy, branchiopod brain, branchiopods, brine shrimp, cambrian fossil, cambrian period, China, common ancestor, complex brain, course, crustaceans, dna sequence, evolution, evolutionary biologist, fuxianhuia protensa, gregory edgecombe, hypothesis, insects, malacostracans, microscope, missing link, modern brain, modern malacostracan, molecular data, morphology, mudstone, multicellular animals, Nature, neural anatomy, neurobiologist, neurocladistics, neuropils, nicholas strausfeld, optic lobes, origin, sensory organ, species, taxonomic group, transformative discovery, university, xianguang hou, xiaoya ma, yunnan province, yunnan university. kunming

Complex brains evolved much earlier than previously thought, as evidenced by a 520-million-year-old fossilized arthropod with remarkably well-preserved brain structures.

The remarkably well-preserved fossil of an extinct arthropod shows that anatomically complex brains evolved earlier than previously thought and have changed little over the course of evolution. According to University of Arizona neurobiologist Nicholas Strausfeld, who co-authored the study describing the specimen, the fossil is the earliest known to show a brain.

The discovery will be published in the Oct. 11 issue of the journal Nature. (more…)

Doctors Wary of Studies Funded by Pharmaceutical Industry, Study Shows

By Guest PostOctober 8, 2012General, Healthaaron kesselheim, arizona, biomedical research, christopher robertson, clinical trial, doctor, fda, federal budget, good drug, good science, high quality, method, methodological rigor, nih, pharmaceutical company, physician, quality, research, trust, university

Physicians are about half as willing to prescribe drugs tested in pharmaceutical-industry funded trials than those in NIH-funded studies, a new study finds.

Physicians are less likely to trust the results of clinical trials when they know those trials were funded by pharmaceutical companies, regardless of the quality of the research, a recent study in the New England Journal of Medicine shows.

The study, led by Dr. Aaron Kesselheim of the Harvard Medical School in Boston and co-authored by University of Arizona associate professor of law Christopher Robertson, evaluated physicians’ confidence in the results of drug trials conducted with a high, medium or low level of methodological rigor. It then looked at how their confidence in those same results changed when a trial’s funding source was revealed as either the National Institutes of Health or a company in the pharmaceutical industry, versus when no funding source was disclosed. (more…)

UA Study: Cartels Squeezing Information Flow by Pressuring, Killing Journalists

By Guest PostOctober 2, 2012Media, Politicsarizona, border, cartel, celeste gonzalez bustamante, ciudad juarez, el paso, gunpoint, jeannine relly, kidnapped, knight award, maquiladoras, mexican journalist, newspaper

Two UA journalism professors have interviewed Mexican journalists along to U.S.-Mexico border to determine how drug cartels affect news reporting in the area.

Two researchers in the University of Arizona School of Journalism have traveled the length of the U.S.-Mexico border interviewing 39 Mexican journalists to find out how the drug cartels are affecting what news people receive. (more…)

Climate Change to Cripple Southwestern Forests

By Guest PostOctober 1, 2012Environmentancient, arizona, atmospheric evaporative, chandana gangodagamage, climate change, climate data, climate record, climate scenario, climate trend, climatological variable, colorado, computer model, craig allen, cultural center, daniel griffin, distribution, drought tolerant, fire, forest, forest drought, future, geological survey, greenhouse gas, growth record, las conchas, marcia mcnutt, megadrought, mesa verde, michael cai, nate mcdowell, new mexico, park williams, pinon pines, prediction, projection, pueblo indians, puebloan, regional climate, regional ecosystem, scientist, southwestern, southwestern forest, species, stress index, thomas swetnam, tree killing, tree mortality, tree ring, trees, united states, university, US, usgs, wildfire, winter precipitation

Trees Face Rising Drought Stress and Mortality as Climate Warms

LOS ALAMOS, N.M. — Combine the tree-ring growth record with historical information, climate records, and computer-model projections of future climate trends, and you get a grim picture for the future of trees in the southwestern United States. That’s the word from a team of scientists from Los Alamos National Laboratory, the U.S. Geological Survey, University of Arizona, and other partner organizations.

The research, published in Nature Climate Change this week, concluded that if the Southwest is warmer and drier in the near future, widespread tree mortality likely will cause substantial changes in forest and species distributions. (more…)

New Report Reveals Food, Water Disparities along U.S.-Mexico Border

By Guest PostSeptember 4, 2012Economy, General, Politicsagricultural field, american corporations, arizona, boundary, california, canning kitchen, change, colorado, daylights, disparity, food, foodshed, gary nabhan, globalized economy, human survival, hungry, jeffrey m banister, Mexico, mexico border, minnesota, multi cultural, new mexico, nicaragua, nogales, oregon, ranchlands, republic, risk, skilled labor, sonora, taco wagons, texas, united states, university, US, water

A UA study has found poverty, water scarcity, food insecurity and interdependence between the United States and Mexico along the border.

The U.S.-Mexico border is the border in the world with the greatest disparity in access to food and water needed for human survival, according to a report commissioned and published by the Southwest Center at the University of Arizona.

An endowment from the Kellogg Foundation and a UA Confluencenter for Creative Inquiry grant supported the study and its focus on assessing transborder food systems to understand water scarcity and food insecurity within the borderlands region.

The report underscores how in the globalized economy, Arizona and the rest of the United States rely on the skilled labor, water, fresh produce, fish, shellfish and livestock originating in northern Mexico; while in Mexico, the population is increasingly dependent upon frozen and processed foods originating in the United States. (more…)