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New gene discovered for male fertility in plants

Scientists at Penn State University have identified a new gene essential for pollen production in flowering plants. The team used genetic techniques to discover the gene, which is necessary for the formation of cells required for pollen production.

SourcePenn State·JournalGenes & Development·DateJul 31, 2002

Variability in West Antarctic ice streams normal

Recent research suggests that West Antarctic ice streams are experiencing normal variability, contrary to predictions of imminent shutdown and sea-level rise. The study found that local conditions, such as geothermal heat and frictional forces, drive the slowdown or speeding up of ice streams.

SourcePenn State·JournalGeophysical Research Letters·DateJul 24, 2002

Deformed frogs form when parasites and pesticides combine

A study by Penn State researchers found that deformed frogs are linked to the combination of parasite infection and pesticide exposure. The research, which included experimental studies in ponds where the animals live, may help explain how environmental stress affects disease outbreaks in frogs.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateJul 8, 2002

What do women in IT want?

A study by Dr. Eileen Trauth found that women in IT face unique challenges depending on their cultural background, family support, and personal experiences. The researcher suggests that respecting individual differences and providing tailored encouragement can help women resist social shaping and succeed in the field.

SourcePenn State·JournalInformation Technology and People·DateJun 28, 2002

Discovery of three faint companions of bright stars

Astronomers at Penn State have discovered three faint dwarf stars orbiting nearby bright stars, marking a new era in imaging faint objects. The discovery uses an infrared camera with a specially shaped pupil mask, allowing for improved contrast and revealing the dim companions.

SourcePenn State·JournalThe Astrophysical Journal Letters·DateJun 12, 2002

Penn State engineers boost hydrogen production from fermentation

Researchers at Penn State have developed a method to increase hydrogen production from fermentation by 43%, utilizing industrial wastewater as feedstock. This approach can potentially make hydrogen a cheaper fuel alternative to gasoline, while also reducing costs for wastewater treatment plants.

SourcePenn State·JournalEnvironmental Science & Technology·DateMay 31, 2002

Uncertainty in West African climate models addressed

Researchers aim to better understand West Africa's climate trends and model potential impacts on the region's water resources, agriculture, and energy sector. The study's findings could help inform regional plans for adapting to climate change and ensure the long-term sustainability of hydroelectric power.

Grandparent divorce weakens relationships with grandchildren

Research by Penn State's King found that ever-divorced grandparents live farther away from their grandchildren than married grandparents. Grandfathers report less contact and higher conflict with grandchildren compared to grandmothers. However, a good parent-grandparent relationship can mitigate the negative influence of divorce.

Paths to egalitarian gender attitudes differ

A study by Dr. Scott Myers and Dr. Alan Booth found that sons rely on more factors than daughters to become forerunners, with early family life in a two-parent household playing a crucial role. In contrast, women tend to develop egalitarian attitudes through education and entering the workforce.

SourcePenn State·JournalSocial Psychology Quarterly·DateMay 20, 2002

Planning could preserve urban forests for future enjoyment

A recent study by Penn State researchers found that urban forest fires have led to increased tree density of specific species in New York City's undeveloped parklands. In contrast, an old-growth urban forest in Cleveland, Ohio, has remained stable with no history of forest fires since 1935.

SourcePenn State·JournalArboricultural Journal·DateMay 2, 2002

Medieval black death not bubonic plague

Researchers investigate church records to reconstruct the virulence, spacial diffusion and temporal dynamics of the Black Death. They argue that the disease was transmitted through person-to-person contact, contrary to traditional theories linking it to bubonic plague.

Women talk about sex more than men do

A recent Penn State study found that women reported talking more about sex and related topics with their best friend, as well as being more comfortable doing so. This difference in communication style may contribute to problems in marital communication and could have implications for emerging adults' sexual attitudes and behaviors.

Free web-based tool makes map colors a snap

ColorBrewer is a free web-based tool that enables users to select from various color schemes for their maps. The tool offers sequential, diverging, and qualitative schemes, allowing users to test and refine their choices. Additionally, ColorBrewer provides detailed color specifications for printing, projection, or web display.

Disaster increases marriages, births and divorces

A Penn State study found that disasters like Hurricane Hugo increase marriages, births, and divorces in affected areas. The study analyzed marriage, birth, and divorce records in South Carolina before and after the hurricane, finding a significant increase in all three life changes in disaster-affected counties.

SourcePenn State·JournalJournal of Family Psychology·DateMar 15, 2002

Technophobes may be right after all

Recent research in social informatics reveals that information and communication technologies often have unintended outcomes, such as harming group communications and exacerbating social differences. The studies highlighted the need for frameworks to expose value conflicts embedded in ICT design, but these are not widely practiced.

SourcePenn State·JournalAnnual Review of Information Science and Technology·DateMar 14, 2002

Researchers capture unusual sprite-like blue jet

Researchers have captured an unusual sprite-like blue jet over Puerto Rico, exhibiting characteristics of both blue jets and sprites. The event's unique features include a branching conical shape and hot spots, which are similar to those seen in computer models but not fully explained.

SourcePenn State·JournalNature·DateMar 13, 2002

'Smart' methods for detecting computer network intruders

The researchers report that the rough sets method offers significant advantages in intrusion detection, including the ability to work with missing values and imprecise data. The team's study found an average classification accuracy rate of 75.68% for rough sets, compared to 69.78% for neural nets and 51.16% for inductive learning.

SourcePenn State·JournalDecision Sciences·DateFeb 25, 2002

Making ice cream more then just cranking

Research shows that lower dasher rates can produce ice cream with the same physical structure and sensory attributes as higher rates, reducing energy consumption and increasing efficiency. The balance of ingredients, including milk fat, emulsifiers, and air, is crucial in achieving desired quality and texture.