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Title: News and Media/Weblogs - SciAm Observations Opinions, arguments and analyses from the editors of Scientific American.

Science_Blog General science and technology news blog.

Science_in_Action Explorations of science and math in the real world, with topical comments, unexpected connections and weird facts.

Science_Musings_Blog A regular meditation on humankind's quest to understand the universe.

Science_Surfing Topic-specific overviews of free-access online scientific sources.

ScienceBase_com Science news and features plus commentary by science journalist and writer David Bradley.

ScienceBlogs A community of 40 selected science bloggers, set up as an experiment in scientific communication.

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ScienceNewsBlog_com Provides coverage of space and science news.

SciScoop Community edited science blog and discussion forum.

Short_Sharp_Science A science news blog from New Scientist.

So_I_Want_To_Be_An_Astronaut A Kuwaiti girl dreams of being an astronaut, and becoming the first Kuwaiti, Arab, Muslim female to go into space.

Space_Spin News and technological innovations in space exploration.

spacebar Commentary on science and general interest news stories, plus art and photography postings.

Stem_Cell_Research_Process_Blog Weblog charting developments and discussing current opinions in this field.

theWatt News and discussion about energy, fuels and the environment.

Thoughts_From_Kansas Weblog of a University of Kansas ecology and evolutionary biology student, fighting for progressive politics, evolution, and endangered species.

Useful_Chemistry Open source chemistry weblog, discussing online resources and solutions to computational and practical problems.

A_Voyage_to_Arctucus Jay Manifold's blog about science and scientific applications.

World_Science_Blog Comments and perspectives from readers of the global science news site.

Z+Blog Pointers and commentary on emerging future issues.

Future_Technologies_Blog From the Future Technologies Advisory Group, a blog focused on promoting awareness and understanding of radical scientific advances and emerging technologies, as well as evaluating their impact on ind

Green_Trust_Renewable_Energy_&_Sustainability Discussion and education on renewable energy, permaculture, biofuels, and independent living. [Atom]

Informaticopia Eclectic news and views on health informatics and eLearning. [Atom]

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Clyde_Davenport\'s_Commutative_Hypercomplex_Mathematics Summary and application as it relates to electromagnetic theory and special relativity.

Complex_Geometry_of_Nature_and_General_Relativity A paper by Giampiero Esposito attempting to give a self-contained introduction to holomorphic ideas in general relativity. The main topics are complex manifolds, spinor and twistor methods, heaven spa

Differential_Equations_and_Oscillations Many problems in physics are described by differential equations. As a complete discussion of differential equations is beyond the scope of this chapter we will deal only with linear first and secon

Dimensional_Analysis A simple review of the powerful technique of dimensional analysis.

The_Dirac_Delta_Function A brief introduction to the properties and uses of the Dirac delta function.

Discrete_Self-trapping_Equation A bibliography in BibTeX format for those interested in discrete nonlinear Schrödinger type equations.

Doing_Physics_with_Quaternions A research effort to see how much of standard physics can be done using only quaternions, a 4-dimensional division algebra.

Euclidean_Geometric_Transforms_for_Physics A new method of correlating physics formulas to derive one formula from a related formula using Euclidean geometry to represent the inter-relationship of physics formulas.

Five_Lectures_on_Soliton_Equations A self-contained review by Edward Frenkel of a new approach to soliton equations of KdV type.

Geometry_and_Duality Lecture notes from the ITP miniprogram on Geometry and Duality

Holomorphic_Methods_in_Mathematical_Physics This set of lecture notes by Brian C. Hall gives an introduction to holomorphic function spaces as used in mathematical physics. The emphasis is on the Segal-Bargmann space and the canonical commutati

Homological_Methods_in_Mathematical_Physics These lecture notes by Joseph Krasil'shchik and Alexander Verbovetsky are a systematic and self-contained exposition of the cohomological theories naturally related to partial differential equations.

Hyperreal_World Nonstandard analysis and its applications to quantum physics, by H.Yamashita. Mixed English/Japanese.

Inexplicable_Secrets_of_Creation Relationships between number theory and physics.

Intrinsic_Localized_Modes Dynamics of defect-free periodic lattices in terms of plane wave phonons. Web text by Albert J. Sievers, Cornell.

An_Introduction_to_Noncommutative_Geometry A set of lecture notes by Joseph C. Varilly on noncommutative geometry and its applications in physics.

Journal_on_Applied_Clifford_Algebra Journal devoted to the development of Geometric Analysis in particular through the use of Clifford Algebras, Quaternions, Hypercomplex Analysis and Multivector Techniques. Main emphasis en the applica

Klaus_Brauer\'s_Soliton_Page Presents a history of J.S.Russell's discovery of solitary waves, and animations of one-, two- and three-soliton solutions to the Korteweg-de Vries equation. Includes an article in PDF format on findin

Lectures_on_Orientifolds_and_Duality Notes by Atish Dabholkar on orientifolds emphasizing applications to duality.

Local_Quantum_Physics_Crossroads An international forum for information exchange among scientists working on mathematical, conceptual, and constructive problems in local relativistic quantum physics (LQP).

Mathematical_Methods_I This site contains the complete lecture notes and homework sets for PHYCS498MMA, a course of mathematical methods for physics given to entering graduate students, and senior undergraduates, at the

Non_Commutative_Geometry Preprints of Alejandro Rivero about Connes's NCG and the Standard Model. Also some historical articles on related topics.

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About 60-Second Science Podcasts 60-Second Science 60-Second Psych 60-Second Earth Videos RSS Jan 8, 2009 06:55 PM in Biology | 0 comments | Post a comment

Watch out Hawaii: Veggies may harbor rare parasite

By Coco Ballantyne

Three people in Hawaii have come down with what appears to be a rare parasitic disease called rat lungworm disease in recent weeks. Two of the victims (friends who had a meal together) told the Honolulu Star Bulletin that they experienced "agonizing pain" after eating raw vegetables – and physicians fear they may have accidentally swallowed slug larvae hidden inside folds of raw peppers. Physicians at Hilo Medical Center on the Big Island of Hawaii reportedly discharged the patients several times before finally admitting them in mid-December, because they could not find anything wrong with them; one of pals is now in a coma, the newspaper reports. CONTINUE READING > Jan 8, 2009 06:50 PM in Health | 11 comments | Post a comment

Patrick Swayze talks about his battle with pancreatic cancer

By Katherine Harmon

Patrick Swayze — in the first interview since his diagnosis with pancreatic cancer last year — discussed his battle with the disease yesterday with Barbara Walters. Swayze has Stage IV pancreatic cancer, the most advanced level, in which the cancer has spread to other parts of the body. Pancreatic cancer is one of the deadliest forms in the U.S. Just 20 percent of those who are diagnosed are still alive a year later. "You can bet that I'm going through hell," Swayze, 56, told ABC's Walters. "And I've only seen the beginning of it." Swayze, who was diagnosed last March, has taken an experimental drug called vatalanib. He didn't dance around his chances last night. In an echo of the famous "watch me now!" lyric from Dirty Dancing's "Do You Love Me?" he responded to the tough odds: "Watch me! You watch what I pull off." CONTINUE READING > Jan 8, 2009 06:47 PM in Environment | 5 comments | Post a comment

Costa Rica rocked by earthquake

By David Biello

Residents of San Jose, Costa Rica, took to the streets today just after lunch as an earthquake registering 6.1 on the Richter scale shook the capital city. Windows broke, walls cracked and landslides were triggered in the countryside but so far no casualties have been reported. The epicenter of the quake at 1:21 local time was just 20 miles (35 kilometers) northwest of the capital, the U.S. Geological Survey reports, and originated 8.6 miles (14 km) beneath the Earth's surface. Aftershocks have been reported throughout the afternoon. Costa Rica is located in the middle of Central America and makes up part of the "Ring of Fire" circling the Pacific Ocean; it is home to several active volcanoes, including Poas, which erupted just last year and Arenal, which erupted in 2007. A similar strength quake in 1910 killed at least 700 people in the city of Cartago; more recently a temblor measuring 6.4 shook the capital in November 2004, killing eight. CONTINUE READING > Jan 8, 2009 05:55 PM in Biology | 0 comments | Post a comment

CMV: A virus in search of a vaccine

By Jordan Lite

With the exception of the so-called cervical cancer vaccine, no shots have been approved specifically to prevent malignant tumors. But cervical cancer, which is caused by the sexually transmitted human papillomavirus (HPV), isn't the only tumor linked to a virus; another is cytomegalovirus (CMV), a usually harmless form of herpes that's the target of a possible therapeutic cancer vaccine for brain tumor patients. As Scientific American reports this month, CMV has been found in the most common type of brain tumor, glioblastoma multiforme (GBM) — the cancer Massachusetts Democratic Sen. Edward Kennedy is battling. Duke University is recruiting 20 patients with these types of tumors for a combined phase 1/2 clinical trial (an early stage of testing that checks the safety and usefulness of a product) of an experimental vaccine treatment for these patients. It's also testing a similar version in another trial. CONTINUE READING > Jan 8, 2009 03:35 PM in Health | 1 comments | Post a comment

More salmonella: U.S. searching for origin of latest, widespread outbreak

By Jordan Lite

Some 388 people have been sickened in a new, nationwide outbreak of the bacterial illness salmonella. The source of the infection, which is typically spread through consumption of contaminated food, is unknown. The Centers for Disease Control and Prevention (CDC) is investigating the outbreak, which has hit 42 states since September. Ohio has reported more than 50 cases of salmonella since October, the Associated Press reports. This strain of the illness, Salmonella typhimurium, usually comes from poultry, cheese and eggs, and the CDC is advising people not to eat raw or undercooked meat or un-pasteurized dairy products, to scrub their hands after touching raw meat and to thoroughly wash any produce. CONTINUE READING > Jan 8, 2009 01:49 PM in Society & Policy | 0 comments | Post a comment

Microsoft's Ballmer to CES: keep investing in tech despite economic woes

By Larry Greenemeier

Editor’s note: I will be Twittering and blogging from CES this week. To follow my posts, visit my Twitter page, Scientific American’s Twitter page and Scientific American.com’s 60-Second Science blog. Las Vegas, NEV. -- In his first ever CES keynote, Microsoft CEO Steve Ballmer yesterday acknowledged the tough economic times, but urged companies not to let investments or interest in technology flag. CONTINUE READING > Jan 8, 2009 09:15 AM in Biology | 0 comments | Post a comment

Mount Everest climbers show survival on record-low oxygen

By Jordan Lite

It's no secret that scaling Mount Everest tests the limits of human survival; more than 200 people have died trying to reach its summit. Today we have new information about just how seriously climbers push their bodies on the world's highest peak: Those who manage to stay alive do so on an amount of oxygen so minute that, at sea level, would only be seen in people who were in cardiac arrest or dead. Four doctors from University College London (UCL) trekked up to Everest's 29,029-foot (8,848-meter) summit. They then descended to 27,559 feet (8,400 meters), where it was warmer and more sheltered from the high winds. There, they drew one another's blood and handed it off to a sherpa named Pafang, who took it down to a blood-gas analyzing machine at 20,997 feet (6,400 meters) to measure the oxygen levels in it. CONTINUE READING > Jan 8, 2009 09:00 AM in Chemistry | 1 comments | Post a comment

Quantum repulsion could make nano devices even tinier

By John Matson

Of all the puzzling physical effects predicted and explained by quantum mechanics, one of the most counterintuitive is that fluctuations in a vacuum can exert forces on objects—almost as if those objects are getting something from nothing. Even in empty space, there are flutterings of energy, and sometimes those tiny ripples act in demonstrable ways. One example is known as the Casimir effect, predicted to exist in 1948 by the late Dutch physicist Hendrik Casimir, in which quantum fluctuations create an attractive force between two surfaces in a vacuum. A group of researchers report in the online edition of Nature that they demonstrated for the first time the repulsive version of this quantum effect. Their results show that by judiciously choosing two materials (silica and gold) immersed in a fluid (bromobenzene), quantum fluctuations can be seen to drive the materials apart. This repulsive version of the Casimir effect had long been predicted but never observed. CONTINUE READING > Jan 8, 2009 08:50 AM in Everyday Science | 0 comments | Post a comment

U.S. students say "yay for science"

By Jordan Lite

Educrats may bemoan the sorry state of American students' performance in math and science relative to their peers overseas, but the kids themselves are enthusiastic about pursuing brainiac careers. Some 85 percent of kids surveyed by the Lemelson-M.I.T. Invention Index, an annual survey that examines Americans' attitudes about innovation, said they were interested in science, technology, engineering and mathematics, according to results released yesterday. The phone survey was conducted in November among 501 kids ages 12-to-17. But nearly two-thirds polled said they may ultimately pursue other professions because they don’t have a mentor or understand what's involved in a science, math or engineering career. CONTINUE READING > Jan 7, 2009 07:43 PM in Society & Policy | 2 comments | Post a comment

CES: New netbooks combine mobility and power

By Larry Greenemeier

Editor’s note: I will be Twittering and blogging from CES this week. To follow my posts, visit my Twitter page, Scientific American’s Twitter page and Scientific American.com’s 60-Second Science blog. LAS VEGAS, NEV.— With so much computer work done directly on the Web, ailing PC makers at this year's Consumer Electronics Show (CES) here are banking on the adoption of "netbooks," which let people browse their favorite sites and check e-mail using a smaller and cheaper (but also slower and less powerful) laptop. CONTINUE READING > PAGE 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Next»

Drugs trigger dramatic weight loss in fat mice 1/6/09 Multiple tiny earthquakes rattle Yellowstone. Could the big one be far behind? 12/30/08 Toyota to offer car powered by the sun? 1/5/09 Dispatches from the bottom of the Earth: A picture is worth a thousand words 1/6/09 World's leading protector of the oceans? President Bush 1/6/09 Advertisement OAS_AD("Right1");

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Opinions,	arguments	and	analyses
from	the	editors	of	Scientific
American.

http://blog.sciam.com/

SciAm Observations 2009 January

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