Bias drive

A concept from NASA's Breakthrough Propulsion Physics Program, the bias drive is a pitch drive that functions by altering the gravitational constant G in front of and behind the craft. One problem with this concept is that it would create a singularity in the field's gradient located inside the vehicle.


In the News

Enzyme Family Plays Role In Alzheimer's: University Of Toronto Study
The route to a treatment for Alzheimer's disease may have become more straightforward with the discovery that a key enzyme known to have a major role in this disease is in fact part of a family of enzymes. Only some family members play a role in the progression of this brain-wasting illness, new research at the University of Toronto has found.

National Study Improves Outcome For Pediatric Acute Myeloid Leukemia
A new strategy for treating childhood acute myeloid leukemia (AML) based on the individual patient's risk of failure, and guided by the results of a highly sensitive technique for identifying leukemic cells, yielded one-year survival rates of almost 90 percent, according to investigators at St. Jude Children's Research Hospital and a national consortium of research institutes.

Capsule Endoscopy Diagnoses More Crohn's Disease Recurrence After Surg
Capsule endoscopy diagnoses more Crohn's disease recurrence after surgery than colonoscopy. Capsule endoscopy led to changes in therapy for more than half of the patients studied. Crohn's disease is a chronic condition that causes inflammation in the gastrointestinal tract, most commonly affecting the small intestine and colon (large intestine).

The New Commission on the Skills of the American Workforce
On December 14, 2006, this commission "unveiled recommendations calling for the biggest changes in the American education system in a century."Suggestions include offering universal pre-kindergarten programs, and enrolling students in college after 10th grade. The site provides a 28-page summary of the report, "Tough Choices or Tough Times,"and links to media coverage and to other commission papers. From the National Center on Education and the Economy (NCEE).

Specialized Neurons Allow The Brain To Focus On Novel Sounds
A team of Spanish and American neuroscientists has discovered neurons in the mammalian brainstem that focus exclusively on new, novel sounds, helping humans and other animals ignore ongoing, predictable sounds.

Novel Medication Improves Ovarian Cancer Treatment
A biologic anticancer agent that prevents tumor growth by interfering with the formation of new blood vessels (Bevacizumab) may have the potential to improve the efficacy of standard combination chemotherapy in ovarian cancer.

Researchers End Debate Over Fractal Analysis Of Authentication Of Poll
Physicists recently "put the nail in the coffin"in the debate about using fractal analysis in authenticating art as they completed a second study related to fractal analysis and JacksonPollock's drip paintings. In the process of analyzing art, the researchers discovered some new fractal mathematics and developed a process for separating the colored layers of paint in art works. Fractal analysis involves placing a grid over an image to search for replications of geometric patterns.

Cassini Image Shows Saturn Draped In A String Of Pearls
Saturn appears dressed to the nines, "wearing"a strand of "pearls"in a stunning infrared image from the Cassini spacecraft that showcases a meteorological phenomenon.

Commentary Today
This site "is devoted to presenting the most diverse and comprehensive collection of opinions and commentary from America's leading columnists. ... Every day this site is updated with the most recent articles"from dozens of political columnists. Browsable by political viewpoint ("on the left"and "on the right"). Also includes discussion boards relating to the articles. Note: Link to "News Radio"is not working.

Promising Treatments For Huntington's Disease Identified In UCI Study
UC Irvine researchers have identified several promising drug compounds that when combined show the potential to treat Huntington's disease.


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