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Getting a step ahead of pathogens

TechAndComputer (July 28, 2010) — In biology and genetics, the concept of epistasis is what gives rise to the whole being more (or less) than the sum of its parts. The quantitative effect of a given mutation upon the traits of an organism has the potential to depend strongly upon the gene versions present in other parts of the genome, or even other mutations co-occurring in that gene.

These genetic interactions, termed epistasis, can impact all...

TechAndComputer (July 28, 2010) — In biology and genetics, the concept of epistasis is what gives rise to the whole being more (or less) than the sum of its parts. The quantitative effect of a given mutation upon the traits of an organism has the potential to depend strongly upon the gene...

Seeing the forest and the trees reveals heart problems

TechAndComputer (July 27, 2010) — A statistical analysis of publicly available heart rate data using three classification tools -- Random Forests, Logistic Model Tree and Neural Network -- could lead to a rapid and precise way to diagnose heart problems, according to research in the International Journal of Electronic Healthcare.

"Heart rate and Heart Rate Variability (HRV) are important measures that reflect the state of the cardiovascular...

TechAndComputer (July 27, 2010) — A...

'Econophysics' points way to fair salaries in free market

TechAndComputer (July 13, 2010) — A Purdue University researcher has used "econophysics" to show that under ideal circumstances free markets promote fair salaries for workers and do not support CEO compensation practices common today.

The research presents a new perspective on 18th century economist Adam Smith's concept that an "invisible hand" drives a free market economy to a collective good.

"It is generally believed that the free market cares...

TechAndComputer (July 13, 2010) — A...

What makes the giant freak wave 'stable'? Researchers develop new statistical model

TechAndComputer (June 17, 2010) — The dreaded giant freak wave that can appear on the open sea out of nowhere, can now for the first time be theoretically calculated and modelled: researchers at the Ruhr- Universität Bochum and the University of Umeå, Sweden have developed a new statistical model for non-linear, interacting waves in computer simulations. It explains how the water-wave system evolves, behaves and, above all, how it stabilises it...

TechAndComputer (June 17, 2010) — The...

Using science to identify true soccer stars: Researchers find a new approach to ranking and rating soccer players

TechAndComputer (June 17, 2010) — As a young boy growing up in Portugal, Luís Amaral loved playing, watching and talking soccer. Amaral and his friends passionately debated about which players were "the best." But, it was just a matter of opinion. Unlike baseball and basketball, there isn't a lot of statistical information detailing how each soccer player contributes to a match.

Amaral, now a professor at Northwestern University, combined his...

TechAndComputer (June 17, 2010) — As a...

Unique computer model used to predict active 2010 hurricane season

TechAndComputer (June 2, 2010) — Florida State University scientists who have developed a unique computer model with a knack for predicting hurricanes with unprecedented accuracy are forecasting an unusually active season this year.

Associate Scholar Scientist Tim LaRow and his colleagues at FSU's Center for Ocean-Atmospheric Prediction Studies (COAPS) say there will be an average of 17 named storms with 10 of those storms developing into...

TechAndComputer (June 2, 2010) — Florida State...

Quantum communication in random networks: Theorists find surprising behaviours in quantum random networks

TechAndComputer (May 26, 2010) — The Internet, networks of connections between Hollywood actors, etc., are examples of complex networks, whose properties have been intensively studied in recent times. The 'small-world' property (that everyone has a few-step connection to celebrities), for instance, is a famous example.

A group of scientists led by Prof. J.I. Cirac, Director at the Max Planck Institute of Quantum Optics (Garching near Munich) and...

TechAndComputer (May 26, 2010) — The...

New forensics research will help identify remains of children

TechAndComputer (May 14, 2010) — New research from North Carolina State University is now giving forensic scientists a tool that can be used to help identify the remains of children, and may contribute to resolving missing-persons cases, among other uses. Identifying skeletal remains can be a key step in solving crimes, but traditionally it has been exceptionally difficult to identify the skeletal remains of children.

"The key finding in our...

TechAndComputer (May 14, 2010) — New...

Computer model better than clinical judgment for diagnosing fever in young children

TechAndComputer (Apr. 22, 2010) — A computerised diagnostic model outperforms clinical judgement for the diagnosis of fever in young children, and may improve early treatment, finds a study published online in the British Medical Journal.

Fever (or febrile illness) is a common symptom in children, especially in those under five years of age, but it can be difficult to diagnose the correct cause. Yet physicians need to be able to distinguish minor...

TechAndComputer (Apr. 22, 2010) — A...

Researchers seeking better use of aircraft, personnel and fuel

TechAndComputer (Apr. 19, 2010) — Air Force Office of Scientific Research-funded Colorado State University researchers are trying to solve computationally difficult problems related to logistics planning, vehicle routing, resource allocation, circuit design, wireless frequency assignment and scheduling.

Dr. Adele Howe and co-researcher, Dr. Darrell Whitley are passionate about finding the best possible solutions to some of the Air Force's most...

TechAndComputer (Apr. 19, 2010) — Air...

Visualization of geographic patterns may predict spread of disease

TechAndComputer (Apr. 16, 2010) — Disease statistics buried within patient records or detailed in newspaper clippings can be sorted and organized to depict geographic patterns, allowing the discovery of trends that were previously overlooked, according to a Penn State geographer.

"The use of interactive maps and graphs, combined with word search interfaces, can lead to greater insight into complex events like the spread of Swine flu," said Frank...

TechAndComputer (Apr. 16, 2010) —...

Species distribution models can exaggerate differences in environmental requirements

TechAndComputer (Apr. 27, 2010) — Separate species that live in radically different environments don't necessarily also have different ecological niches. This is the finding of a study investigating the accuracy of current statistical tests that use models of geographic distributions to infer changes in environmental requirements.

In a new study published in the journal Systematic Biology, a model simulating the distributions of two imaginary...

TechAndComputer (Apr. 27, 2010) — Separate...

New, inexpensive way to predict Alzheimer's disease

TechAndComputer (Apr. 11, 2010) — Your brain's capacity for information is a reliable predictor of Alzheimer's disease and can be cheaply and easily tested, according to scientists.

"We have developed a low-cost behavioral assessment that can clue someone in to Alzheimer's disease at its earliest stage," said Michael Wenger, associate professor of psychology, Penn State. "By examining (information) processing capacity, we can detect changes in...

TechAndComputer (Apr. 11, 2010) — Your...

Anti-depressants bring higher risk of developing cataracts

TechAndComputer (Mar. 8, 2010) — Some anti-depressant drugs are associated with an increased chance of developing cataracts, according to a new statistical study by researchers at the University of British Columbia, Vancouver Coastal Health Research Institute and McGill University.

The study, based on a database of more than 200,000 Quebec residents aged 65 and older, showed statistical relationships between a diagnosis of cataracts or cataract...

TechAndComputer (Mar. 8, 2010) — Some...

Analytical eye: Viewing through the data jungle

TechAndComputer (Mar. 15, 2010) — Unmanageable volumes of data accumulate in our digitized working world. Scientists are developing analytical techniques that make use of our ability to identify complex data relationships by means of pictorial images.

Every day vast amounts of information flood into business databases. To achieve their corporate objectives, companies try to evaluate information relevant to their activities as effectively as...

TechAndComputer (Mar. 15, 2010) —...

Artificial neural networks help identify predisposing factors for conversion of mild cognitive impairment to Alzheimer’s disease

TechAndComputer (Mar. 2, 2010) — Mild cognitive impairment (MCI) is often considered an early symptom of Alzheimer's disease (AD). An analysis of genetic risk factors predisposing to MCI is critical for accessing individual predisposition and reliably evaluating the effectiveness of early treatment. In a groundbreaking study published in the February 2010 issue of the Journal of Alzheimer's Disease investigators successfully used artificial...

TechAndComputer (Mar. 2, 2010) — Mild...

An emotion detector for baby

TechAndComputer (Feb. 24, 2010) — Baby monitors of the future could translate infant cries, so that parents will know for certain whether their child is sleepy, hungry, needing a change, or in pain. Japanese scientists report details of a statistical computer program that can analyze a baby's crying in the International Journal of Biometrics.

As any new parent knows, babies have a very loud method of revealing their emotional state -- crying....

TechAndComputer (Feb. 24, 2010) — Baby...

When molecules leave tire tracks: New approach to optimizing molecular self-organization

TechAndComputer (Feb. 20, 2010) — Some classes of molecules are capable of arranging themselves in specific patterns on surfaces. This ability to self-organize is crucial for many technological applications, which are dependent on the assembly of ordered structures on surfaces. However, it has so far been virtually impossible to predict or control the result of such processes. Now a group of researchers led by Dr. Bianca Hermann, a physicist...

TechAndComputer (Feb. 20, 2010) — Some...

Comprehensive study using bioinformatics predicts the molecular causes of many genetic diseases

TechAndComputer (Feb. 10, 2010) — It is widely known that genetic mutations cause disease. What are largely unknown are the mechanisms by which these mutations wreak havoc at the molecular level, giving rise to clinically observable symptoms in patients. Now a new study using bioinformatics, led by scientists at the Buck Institute for Age Research, reports the ability to predict the molecular cause of many inherited genetic diseases. These...

TechAndComputer (Feb. 10, 2010) — It is widely...

Faster, easier way to access audiovisual assets

TechAndComputer (Jan. 16, 2010) — Millions of hours of old shows sit collecting dust in the basements of TV and radio broadcasters. Digging through these audiovisual treasure troves is becoming faster and easier thanks to software developed by European researchers.

In recent years many public and private organisations have embarked on initiatives to digitise collections of recordings from decades past in an effort to gain new insights into...

TechAndComputer (Jan. 16, 2010) — Millions of...

Researchers trace HIV mutations that lead to drug resistance

TechAndComputer (Jan. 12, 2010) — Chemists at UC San Diego and statisticians at Harvard University have developed a novel way to trace mutations in HIV that lead to drug resistance. Their findings, once expanded to the full range of drugs available to treat the infection, would allow doctors to tailor drug cocktails to the particular strains of the virus found in individual patients.

"We want to crack the code of resistance," said Wei Wang,...

TechAndComputer (Jan. 12, 2010) — Chemists at...