Research by two Kansas State University scientists could help with the large-scale cultivation and manufacturing of oil-rich algae in the oceans.

Algae are a diverse and simple group of organisms that live in or near water. Certain algal species are high in oil content that could be converted into such fuels as biodiesel, according to Pei and Yuan. Algae also have several environmentally-friendly advantages over corn or other plants used for biofuels, including not needing soil or fresh water to grow.

Nearly one in 10 obstetricians in a new study has considered giving up obstetric practice because of the emotional toll of stillbirths and infant deaths.

"In the beginning" were more than just words — they were the beginning of printing presses and typography that brought new depths of meaning and creativity to language. For some designers and printers, the ultimate challenge is the Bible, the design of which could be affected by politics and religious beliefs, as well as by aesthetic and commercial concerns.

Patsy Watkins studied five bibles created from the mid-15th through the 20th centuries to see if the designers’ motives could be discerned within their design and typefaces. The Visual Communication Quarterly published her findings, “Designing the Holy Bible: Arguing the TEXT Through the Form,” in its latest issue devoted to typography.

She chose the Gutenberg Bible, the Martin Luther Bible, the Doves Press Bible, the Washburn College Bible and the Pennyroyal Caxton Press Bible. What she found was that form indeed revealed function as well as the designers’ desire to shape the meaning and hence a reader’s understanding of this ancient text.

Homosexual behavior is largely shaped by genetics and random environmental factors, according to findings from the world's largest study of twins.

Researchers from Queen Mary's School of Biological and Chemical Sciences and Karolinska Institutet in Stockholm report in the Archives of Sexual Behavior that genetics and environmental factors (which are specific to an individual, and may include biological processes such as different hormone exposure in the womb), are important determinants of homosexual behavior.

The team led by Dr Niklas Långström at Karolinska Institutet conducted the first truly population-based survey of all adult (20-47 years old) twins in Sweden. Studies of identical twins and non-identical, or fraternal, twins are often used to untangle the genetic and environmental factors responsible for a trait. While identical twins share all of their genes and their entire environment, fraternal twins share only half of their genes and their entire environment. Therefore, greater similarity in a trait between identical twins compared to fraternal twins shows that genetic factors are partly responsible for the trait.

In February this year there appeared in Physics World an article entitled Constant Failure by Robert P Crease of Stony Brook University, in which he showed in how many formulae of physics and mathematics 2π turns up, rather than π. This article struck a chord with me, since even after many years I remember the feeling of “cognitive dissonance” when being taught that the formula was 2πR rather than πD.

I felt it a bit much, though, suggesting that Archimedes might have been mistaken in choosing to calculate the ratio of circumference to diameter rather than to radius. In those days, the fundamental dichotomy seems to have been between the geometers who thought of circumference, diameter and their ratio, and the astronomers who used the radius in their calculation of chord tables.

Hipparchus used a radius of 3438 which is the nearest integer to the number of minutes in 1 radian, but Ptolemy preferred 3600 as this is easier to calculate within the sexagesimal system. The work of these astronomers, further developed by Hindu and Arabic mathematicians, gives us our trigonometry of today.

It might be hard for the young student to see the fun in math. Up till now it has been memorize, memorize, memorize for them. This can give them a break and tease their minds. Numbers that look simple, just two digits "1" and "8." It doesn’t get any easier than this, but wow can these two numbers do some magic. Consider this magic square:

IXOHOXI

How do we get kids excited about math? In this age of high tech video games why would a kid want to be excited about math they have to do in their mind or with pencil and paper?

Maybe I am just too old, I remember the days before television and video games, I did get excited about math puzzles. Perhaps one of you video whiz kids can create a game series that uses the old math puzzles to allow players to advance from level to level. Until then, those of us who do care about math and math education have a responsibility to get kids excited about math - these will be the math innovators of the future.

Scientists at Wake Forest University Baptist Medical Center are about to embark on a human trial to test whether a new cancer treatment will be as effective at eradicating cancer in humans as it has proven to be in mice.

The treatment will involve transfusing specific white blood cells, called granulocytes, from select donors, into patients with advanced forms of cancer. A similar treatment using white blood cells from cancer-resistant mice has previously been highly successful, curing 100 percent of lab mice afflicted with advanced malignancies.

Zheng Cui, Ph.D., lead researcher and associate professor of pathology, will be announcing the study June 28 at the Understanding Aging conference in Los Angeles.

The modern Olympic ideals differ dramatically from the way the games were actually played in ancient Greece, says a University of Maryland classicist who has heavily researched the Olympic past. The ancient games featured professionals with a “winning is everything” philosophy.

“Ancient Olympiads were more like the modern PGA golf circuit than the amateur ideal advanced for most of the 20th century,” says Hugh Ming Lee, a professor of classics at the University of Maryland. “The Greeks and Romans awarded honors to the most accomplished athletes and paid them for their efforts. These professionals traveled a competitive circuit. The Vince Lombardi notion of winning is much closer to the original Olympic spirit.”

The safeguards against unwanted pollination by genetically modified crops may already be built into plants, according to new research.

Plants are very selective when it comes to choosing mates. Flowering plant pollination systems are clever devices for attracting pollinators like birds, ants, and insects, but there are also mechanisms for keeping out unwanted pollen. Some plants happily self-fertilize with their own pollen but others reject such pollen because of the deleterious effects of inbreeding. In these plants, their own pollen or that of close relatives is rejected if it lands on the female stigma.

For all plants, the pollen of other species is undesirable, as it will result in aborted zygotes or infertile offspring. Plants have evolved various mechanisms for rejecting unwanted pollen. The self-incompatibility (SI) system, found in several plant families, including the Solanaceae, which includes tobacco, tomato, and eggplant, is the best studied. A number of components that function in the SI system have been identified, but the exact molecular mechanisms by which incompatible pollen is recognized and rejected and compatible pollen allowed to proceed to the ovary are still unknown.