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Cornell University


Cowbirds' winning songs reflect brainpower

A study by Cornell researchers found a close correlation between cowbird brain size and its singing ability, which attracts females. The research suggests that visual and sexual selection factors go hand-in-hand in determining mating success among male cowbirds.

SourceCornell University·JournalBehavioral Neuroscience·DateMay 8, 2000

Accountability makes for better decisions

A study by Cornell University researchers found that auditors tend to make more objective decisions than salespeople due to their legal liability. However, when salespeople are held accountable for their decisions, their bias is reduced. The study suggests that making decisions based on facts rather than personal biases can lead to bet...

SourceCornell University·JournalManagement Science·DateMay 8, 2000

Radar shows giant, bone-shaped asteroid

Astronomers have obtained radar images of a giant, dog bone-shaped asteroid called 216 Kleopatra, located in the main asteroid belt between Mars and Jupiter. The asteroid is about 217 kilometers long and 94 kilometers wide, with a shape that resembles a distorted dumbbell or dog bone.

SourceCornell University·JournalScience·DateMay 3, 2000

Best images yet of Jupiter's inner moons

The Galileo spacecraft has captured the highest-resolution images yet of three of Jupiter's four innermost moons, revealing surface features as small as 2 kilometers across. The images show a bright surface feature on Amalthea named Ida, a streak of bright material about 50 kilometers in length.

Farm productivity is about tech, not age

A Cornell University study reveals that younger farmers' lack of access to modern technology hinders their productivity, while older farmers continue to use technology efficiently despite declining output. The research has implications for business management decisions and federal agricultural policies.

SourceCornell University·JournalAgricultural and Resource Economics Review·DateApr 17, 2000

$4.1 million NSF grant to mine Census data

A $4.1 million grant from the National Science Foundation is helping researchers link disparate databases and protect confidential data for economic and social scientists. The project aims to improve quality of the Census Bureau's surveys and enable better research on social issues like welfare-to-work and aging.

Making bottled green tea taste fresh-brewed

Researchers identify epigallocatechin and epigallocatechin-gallate as key compounds responsible for flavor changes in commercial processing, and suggest adding vitamin C to preserve their stability. This discovery could lead to improved bottled or canned green-tea taste and enhanced health benefits.

Cockroach birth control from gene discovery

Researchers at Cornell University have identified and cloned a key gene in the reproductive system of male cockroaches, which could lead to the development of safe and effective birth control. The goal is to create a pesticide that specifically targets pests without harming other insects or humans.

Nanostructures for drug delivery

Cornell University materials engineers have created a polyvinylalcohol (PVA) nanocomposite that can be used to deliver drugs to the human brain or bloodstream. The material, with chains of polymer molecules controlling drug flow, has potential applications in tissue engineering and enzyme carriers.

Beetle uses fecal defense against predators

The tortoise beetle uses its own feces to create a shield that deters most predators, but one predator, the carabid beetle, can penetrate it. The larvae attach fecal strands to their bodies and repair them if damaged, creating an almost impenetrable defense mechanism.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateMar 26, 2000

Creating a standard spectrum of smell

Researchers at Cornell University have developed a standard spectrum of smell to identify individuals with specific anosmia, which can distort data in sensory research labs. The new approach uses gas chromatography olfactometry to categorize people into three sensitivity levels: hyperosmic, hyposmic, and anosmic.

Tough standards boost high school dropouts

A study by Cornell University economists finds that stricter high school graduation requirements can result in a 3-7% increase in dropout rates, affecting 26,000 to 65,000 students nationwide. Higher course graduation requirements are associated with higher attrition rates, dropout rates, and individual probabilities of dropping out.

SourceCornell University·JournalEconomics of Education Review·DateMar 14, 2000

Dual-earner families are scaling back for kids

A study by Cornell sociologists finds that dual-earner couples are scaling back work to care for families and have more time for themselves. Women are more likely to take on these roles, leading to a 'neotraditional' arrangement where the husband's career is the primary focus.

SourceCornell University·JournalJournal of Marriage and Family·DateDec 1, 1999

Surface of Mars as never seen before

The Mars Descent Imager will capture a series of about 20 images of the Martian surface, from 4 miles to 30 feet altitude, using a 'nesting' technique to create a complete scale of pictures. The high-resolution images will aid in studying the layers of ice and dust covering the polar region.

Natural fatty acid reduces breast cancer risk

A study published in the Journal of Nutrition found that consuming dairy products rich in conjugated linoleic acid (CLA) reduced the incidence and number of mammary tumors in pubescent rats. CLA was shown to decrease the proliferation rate of mammary terminal end bud cells by 30%.

SourceCornell University·JournalJournal of Nutrition·DateNov 24, 1999

Building molecules one at a time

Researchers at Cornell University have successfully built single iron carbonyl molecules using a scanning tunneling microscope. The team used the microscope to attach carbon monoxide molecules to individual iron atoms, forming new molecules with unique properties.

SourceCornell University·JournalScience·DateNov 24, 1999

'Bioavailability' is the real test for DDT hazard

Researchers at Cornell University developed new tests to measure the true bioavailability of aging toxins like DDT, which may overestimate the risk to living organisms. The new tests meet standards set by common earthworms and provide a more realistic reflection of potential harm.

SourceCornell University·JournalEnvironmental Science & Technology·DateNov 14, 1999

Improved biodegradable hydrogels

Researchers have created biodegradable hydrogels that can deliver medications, anchor biological tissues, and even serve as gene therapy carriers. The new materials have controlled release profiles and can be tailored to suit specific medication needs.

Vertical split keyboard lowers injury risk

A Cornell University study found that a vertical split keyboard lowers injury risk for carpal tunnel syndrome, with wrists in safe positions 71% and 78% of the time. The prototype keyboard design reduces strain on wrists and forearms, allowing for more efficient typing movements.

SourceCornell University·JournalErgonomics·DateNov 4, 1999

Counting elephants by monitoring sounds

Researchers at Cornell University will use acoustic monitoring to count forest elephants in Africa, providing crucial information on population numbers and health. The project aims to support conservation efforts by tracking endangered species such as gorillas and rhinos.

Palomar camera gets sharper Neptune images

Cornell researchers use the Palomar High Angular Resolution Observer (PHARO) camera to take near-infrared images of Neptune, revealing a massive cloud and numerous smaller clouds. The camera's high spatial resolution allows for detailed analysis of the planet's clouds and atmospheric circulation.

Pollution makes crustaceans adapt rapidly

Biologists at Cornell University and Max Planck Institute found that Daphnia crustaceans can evolve quickly to cope with polluted water. The study showed that these tiny crustaceans adapted to handle less nutritious food, becoming a natural control for toxic cyanobacteria in Lake Constance.

SourceCornell University·JournalNature·DateSep 29, 1999

Single motherhood doesn't hurt schoolwork

A Cornell University study of over 1,700 six- and seven-year-olds found that single mothers' education levels were more important than family income for their children's math, reading, and vocabulary scores. Strong links between a mother's ability level and her child's academic performance were seen in white, black, and Hispanic families.

SourceCornell University·JournalJournal of Family Psychology·DateSep 27, 1999

'Disposable electronics' from polymer study

A Cornell University research team led by Paulette Clancy is developing novel semiconducting materials using polymers, which could lead to cheaper and more portable 'throwaway electronics.' The project aims to create new materials for light-emitting diode displays and flexible laptop screens.

Communications towers killing birds

A recent study highlights the dangers of communications towers for migrating birds, which mistake tower lights for the moon and collide with structures. The Cornell University meeting brought together experts to discuss solutions, including co-location rules and reduced lighting in tall buildings.

A miserable life on overcrowded Earth in 2100

A new Cornell University study suggests that without democratic population-control practices and resource-management policies, the world's 2 billion people will face a difficult life by 2100. The report predicts an optimal population of 2 billion, with a standard of living about half that of the United States in the 1990s.