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Non-cancerous Brain Tumors Linked to Frequent Dental X-rays

By Guest PostApril 11, 2012Healthbrain tumor, california, central nervous system, connecticut, dental xrays, elizabeth claus, joellen schildkraut, joseph wiemels, lisa calvocoressi, margaret wrensch, massachusetts, melissa bondy, meninges, meningioma, motor control, non cancerous, north Carolina, panorex dental exam, texas, yale

People who received frequent dental X-rays in the past, before dosages were lowered, have an increased risk of developing a meningioma, the most common and potentially debilitating type of non-cancerous brain tumor, a new study led by the Yale School of Public Health has found. The study is published online in Cancer, a journal of the American Cancer Society.

Meningioma is listed as a rare disease by the National Institutes of Health. The estimated incidence is up to 8 out of 100,000 people, and it occurs more frequently among women than men. Although it is the most frequently diagnosed type of brain tumor, meningioma is listed as a rare disease by the National Institutes of Health. Tumors develop in a membrane that envelops the brain and the central nervous system known as the meninges. They can grow undetected for years and eventually reach the size of a baseball or larger. While they are not cancerous, they can cause debilitating side effects such as headaches, vision problems, and loss of speech and motor control. (more…)

Which Plants Will Survive Droughts, Climate Change?

By Guest PostApril 9, 2012Environmentagaves, alahee, cacti, california, carbon dioxide, cell level loss, chaparral shrubs, China, christine scoffoni, climate change, desert plants, drought tolerance, ecosystems, extinction, faith inman narahari, hawaiian drought, lawren sack, megan bartlett, photosynthesis, plant species, psydrax odorata, sandalwood, santalum paniculatum, stiff cell wall, stomata, sunflower, tropical botanical gardens, turgor loss point, turgor pressure, xishuangbanna, yuccas, yunnan

New research by UCLA life scientists could lead to predictions of which plant species will escape extinction from climate change.

Droughts are worsening around the world, posing a great challenge to plants in all ecosystems, said Lawren Sack, a UCLA professor of ecology and evolutionary biology and senior author of the research. Scientists have debated for more than a century how to predict which species are most vulnerable.

Sack and two members of his laboratory have made a fundamental discovery that resolves this debate and allows for the prediction of how diverse plant species and vegetation types worldwide will tolerate drought, which is critical given the threats posed by climate change, he said. (more…)

Scientists Measure Diameter of The Sun With Unprecedented Accuracy

By Guest PostMarch 27, 2012Sciencebrazil, california, diameter, hawaii, isabelle scholl, jeff kuhn, marcelo emilio, mdi, measurement, mercury, michelson doppler imager, NASA, nasa satellite, ponta grossa, rock bush, soho, solar size, solar telescope, spacecraft, stanford university, sun

A group of scientists from Hawaiʻi, Brazil and California has measured the diameter of the Sun with unprecedented accuracy by using a spacecraft to time the transits of the planet Mercury across the face of the Sun in 2003 and 2006.

The measurements of the Sun’s size were made by University of Hawaiʻi at Mānoa Institute for Astronomy scientists Drs. Marcelo Emilio (visiting from Ponta Grossa, Brazil), Jeff Kuhn and Isabelle Scholl in collaboration with Dr. Rock Bush of Stanford University. They used the Michelson Doppler Imager (MDI) aboard NASA’s Solar and Heliospheric Observatory (SOHO) to make the measurements. (more…)

Rising Seas Put Millions of Americans at Risk for Flooding

By Guest PostMarch 16, 2012Environmentamericans, atlantic seaboard, benjamin h strauss, california, canal region, coastal elevation, flooding, florida, gulf of mexico, jeremy l weiss, jonathan t overpeck, long beach, los angeles, louisiana, maryland, mission beach, new jersey, new york, remik ziemlinski, rising seas, san diego, sea level, university of arizona, us coastal region, venice

New estimates suggest more U.S. land prone to flooding than previously thought.

About 3.7 million Americans are at risk for flooding as the sea level continues to rise in the coming century, according to a new study from a team that includes University of Arizona researchers.

Areas on the south Atlantic Seaboard and surrounding the Gulf of Mexico appear to be most prone to future flooding. In terms of numbers of people at risk, Florida is the most vulnerable, closely followed by Louisiana, California, New York and New Jersey. (more…)

Number of Dead California Sea Otters Recovered in 2011 a Record High

By Guest PostFebruary 25, 2012Natureattacks by sharks, bacterial infections, boat strikes, brian hatfield, california, california coast, california sea otter, carcharodon carcharias, cayucos, enhydra lutris nereis, extinction, gun shot wounds, harmful algal toxins, heart disease, infectious diseases, lilian carswell, marcia mcnutt, michael harris, monterey bay aquarium, population growth, population mortality, sea lions, sea otter, seals, shark bites, southern sea otter, strandings, tim tinker, tooth fragments, u s geological survey, white sharks

*Evidence Builds for White Shark Factor in Otter Mortality*

SANTA CRUZ, Calif. — The California or southern sea otter (Enhydra lutris nereis) appears to be experiencing an unprecedented increase in mortality from attacks by sharks, according to federal and state scientists.

Since 1968, biologists and veterinarians at the U.S. Geological Survey and California Department of Fish and Game have documented and examined all reported sea otter “strandings” — counting the number of dead, sick or injured sea otters recovered along California’s coast each year. (more…)

UCLA Study Finds U.S. Has More Elected, Appointed Asian American Officials Than Ever

By Guest PostDecember 10, 2011Politicsasian american, asian american politics, asian pacific americans, california, david k yoo, don nakanishi, hawaii, irvine, james lai, new york, oakland, pacific islander, political almanac, political process, political trends, politicians, public office, san francisco, state governors, texas, united states, us history, voters

More Asian Pacific Americans hold public office in the United States than at any other time in U.S. history, a sign of the community’s growing engagement with the political process, according to a newly released political almanac published by UCLA’s Asian American Studies Center.

The 14th edition of the National Asian Pacific American Political Almanac, first published in 1976, contains information on all 3,000 current elected and appointed officials. It also analyzes political trends and makes electoral projections of the nation’s 17 million Asian Pacific Americans. (more…)

Arctic Sea Ice Reaches Minimum 2011 Extent, the Second Lowest in the Satellite Record

By Guest PostSeptember 19, 2011EnvironmentArctic, arctic ocean, Arctic sea ice, arctic sea ice extent, atmosphere, california, floating ice chunks, goddard space flight center, greenbelt, greenhouse gases, mark serreze, NASA, national snow and ice data center, sea ice, texas, university of colorado boulder, walt meier, warming temperatures

The blanket of sea ice that floats on the Arctic Ocean appears to have reached its lowest extent for 2011, the second lowest recorded since satellites began measuring it in 1979, according to the University of Colorado Boulder’s National Snow and Ice Data Center.

The Arctic sea ice extent fell to 1.67 million square miles, or 4.33 million square kilometers on Sept. 9, 2011. This year’s minimum of 1.67 million square miles is more than 1 million square miles below the 1979-2000 monthly average extent for September — an area larger than Texas and California combined. (more…)

Microsoft Selects the Nation’s Top Educators at the U.S. Innovative Education Forum

By Guest PostAugust 1, 2011Education, Technology2011 us innovative education forum, acte, alabama, alaska, andrew ko, anthony sablan, association for career and technical education, california, ccsso, colin horack, council for chief state school officers, educators, engineering and math, florida, ief, jason arthur, kelli etheredge, louis zulli jr, melanie wiscount, michigan, Microsoft, microsoft corp., partners in learning global forum, Pennsylvania, Science, south carolina, stem learning, Technology, Washington

*Outstanding educators using technology are recognized for their contribution and impact in teaching.*

REDMOND, Wash. — Aug. 1, 2011 — Microsoft Corp. today announced 11 educators from Alabama, Alaska, California, Florida, Michigan, Pennsylvania, South Carolina and Washington who have been selected as winners of the 2011 U.S. Innovative Education Forum (IEF). The IEF is an event recognizing innovative teachers and school leaders who creatively and effectively use technology in their curriculum to help improve the way kids learn while increasing student success. Out of the thousands that applied, 100 educators from 25 states were selected for a spot to compete on Microsoft’s corporate campus in Redmond. IEF participants also voted on their peers in the Educator’s Choice category and selected a winning project. The winning educators will represent the U.S. and advance to compete against educators from around the world at the Partners in Learning Global Forum, Nov. 6–11, 2011 in Washington, D.C. (more…)

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