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Cornell University


Distance to hospital affects heart attack survival

A new study by Cornell University's Liam O'Neill found that distance from a hospital significantly impacts access to medical facilities and outcome for heart attack victims. The study estimates that patients living far from hospitals face a higher risk of death from heart attacks, with approximately 60% expiring before reaching the hos...

SourceCornell University·JournalHealth Care Management Science·DateFeb 3, 2004

Farm-raised salmon presents greater health risks

A study by Cornell University found that farm-raised salmon in Europe contained higher levels of organic contaminants than those from North America and South America. The analysis revealed 13 out of 14 organochlorine contaminants were present in farmed salmon, highlighting the need for safer farming practices.

SourceCornell University·JournalScience·DateJan 12, 2004

Chimp vs. human DNA: what's in the 1% difference

A massive gene-comparison project found evidence of positive selection in genes involved in the sense of smell, digestion, long-bone growth, hairiness, and hearing. The analysis also suggested that humans may have an advantage in understanding speech due to genetic differences in hearing genes.

SourceCornell University·JournalScience·DateDec 19, 2003

Timing of IQ test can be a life or death matter

A recent study found that IQ tests taken at different times can result in vastly different diagnoses, with potential consequences for life or death sentences. The 'Flynn effect' causes IQ scores to rise over time, making it essential to reset the test every 15-20 years.

SourceCornell University·JournalAmerican Psychologist·DateDec 3, 2003

Cocoa froths with cancer-preventing compounds

Researchers at Cornell University found that cocoa contains nearly twice the antioxidants of red wine and up to three times those found in green tea. The high content of phenolic phytochemicals, or flavonoids, is responsible for this superior antioxidant activity.

SourceCornell University·JournalJournal of Agricultural and Food Chemistry·DateNov 18, 2003

Pollutant-eating microbe could speed gasworks cleanup

A newly discovered bacterium, Polaromonas naphthalenivorans strain CJ2, has been found to break down naphthalene and other toxins in coal tar contamination. The discovery was made using a new technique called stable isotopic probing (SIP), which allowed researchers to identify the microbe's DNA signature.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateOct 27, 2003

Fruit odors lure some flies to evolve into new species

Researchers found that fruit odors play a crucial role in the evolution of a new species among hawthorn maggots. A specific blend of apple and hawthorn volatiles triggers a strong preference for host-plant identification, making it difficult for flies to interbreed. This discovery opens up possibilities for organic pest control methods.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateSep 22, 2003

Electrospinning cellulose waste into fiber

The Cornell researchers successfully developed a new technique to create ultra-small diameter fibers from cellulose using electrospinning. These nanofibers have potential applications in air filtration, protective clothing, agricultural nanotechnology and biodegradable nanocomposites.

Leading bacterial pathogen is sequenced

The sequencing of Pseudomonas syringae genome will help scientists understand how bacteria adapt to host organisms, enabling the development of new therapies. The genome also reveals commonalities between plant and animal pathogens.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateAug 15, 2003

An old, familiar love nest helps sexual success

A Cornell University study reveals that Pavlovian sexual conditioning, a process where external cues trigger anticipation of mating, significantly improves reproductive success in Japanese quail. The researchers found that breeding animals in familiar environments led to twice as many fertilized eggs compared to unfamiliar ones.

SourceCornell University·JournalProceedings of the Royal Society of London·DateJul 23, 2003

Rapid evolution helps hunted outwit their predators

In a laboratory experiment using rotifers and algae in chemostats, rapid evolution allowed prey to adapt and outnumber their predators. This phenomenon, predicted by computer models, demonstrates how evolution can play a crucial role in ecological dynamics and could have implications for understanding diseases like HIV.

SourceCornell University·JournalNature·DateJul 16, 2003

Fidelity is key mate-preference factor for both sexes

A study of 978 heterosexual residents found that physical attractiveness is not a primary factor in long-term relationships, while fidelity and good parenting qualities are highly valued. The researchers suggest that humans have evolved to play a sophisticated mating game, with similar characteristics being preferred in partners.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateJul 7, 2003

Smoke-free rules may be good news for business

A study by Cornell University found that smoke-free regulations in New York restaurants and hotels did not harm employment or sales. In fact, the regulations led to a statistically significant increase in taxable sales and overall payrolls.

SourceCornell University·JournalCornell Hotel and Restaurant Administration Quarterly·DateJun 26, 2003

Imaging technique tracks nerve growth and repair

A new imaging technique, using second harmonic generation microscopy, allows for the observation of microtubule polarity in living brain tissue. This enables researchers to study neuronal development and repair, as well as neurodegenerative diseases such as Alzheimer's.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateJun 11, 2003

Noninvasive optical biopsies on the horizon

Researchers demonstrate noninvasive microscopy scans producing images of diseased tissue at the cellular level, rivaling traditional histopathology methods. The technique uses natural fluorescence and multiphoton microscopy to enable optical biopsies on living animals or humans without surgical intervention.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateJun 11, 2003

3-D imaging inside living organism, using quantum dots

Researchers at Cornell University developed a new approach to using quantum dots for biological studies of living animals, achieving high-resolution three-dimensional images inside living tissue. The technique, known as multiphoton microscopy with quantum-dot imaging, outperforms conventional methods by 1,000 times in brightness and re...

SourceCornell University·JournalScience·DateMay 29, 2003

Critical early-defense trigger in plants found

Researchers at Cornell University have discovered a gene that codes for an enzyme producing nitric oxide, a hormone triggering plant's defense against pathogens. The discovery provides new insights into the biochemical and genetic pathways enabling plants to protect themselves from disease.

SourceCornell University·JournalCell·DateMay 15, 2003

Army ants have defied evolution for 100 million years

A study by Sean Brady reveals that army ants originated from the same source on Gondwana 100 million years ago, instead of evolving independently on separate continents. The ants' unique characteristics, including nomadic behavior and reproductive adaptation, have remained unchanged over time.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateMay 5, 2003

Earthquake testing lab for nation's lifelines

The Cornell laboratory will be a national center for calculating earthquake effects on structures, including soil deformation and seismic damage. The facility will use customized testing structures and actuators to apply displacements and loads, enabling researchers to study the behavior of structures during earthquakes.