Pull on a piece of plastic at separate ends; it becomes thinner. So does a rubber band. One might assume tha,t when a force is applied along an axis, materials will always stretch and become thinner. Wrong. Thanks to their peculiar internal geometry, auxetic materials grow wider. After confounding scientists for decades, researchers are now developing mathematical models to explain the unusual behavior of these logic-defying materials
Three Austrians have replaced injured hands with bionic ones that they can control using nerves...
Researchers have developed a novel three-dimensional, multiscale and multicomponent model of the...
We computational chemists are an impatient lot. Despite the fact that we routinely deal with...
Researchers have developed a statistical technique that sorts out when changes to words’ pronunciations most likely occurred in the evolutionary history of related languages. Their model gives researchers a renewed opportunity to trace words and languages back to their earliest common ancestor or ancestors — potentially thousands of years further into prehistory than previous techniques.
Matrix Gemini Laboratory Information Management System (LIMS) features enhanced cross sample testing capabilities. Cross sample calculations provide the ability to utilize one set of results in the calculation of another set of results. Examples include blank correction, drift and spike correction.
As scientific researchers, we are often surprised by some of the assumptions made about us by those outside our profession. So we put together a list of common myths we and our colleagues have heard anecdotally regarding scientific researchers.
A new mathematical analysis tool has allowed a deeper understanding of the anatomy of the human head, describing the skull as an extended network structured in 10 modules. Researchers have developed a research methodology called Anatomical Network Analysis (AnNA), based on network analysis mathematical tools for studying anatomy.
How can we preserve our knowledge today for the next millennia? Researchers have found a way to store information in the form of DNA, preserving it for nearly an eternity. As encapsulation in silica is roughly comparable to that in fossilized bones, researchers could draw on prehistoric information about long-term stability and calculate a prognosis: through storage in low temperatures, DNA-encoded information can survive.
The sequencing machines that run today produce data several orders of magnitude faster than the machines used in the Human Genome Project. We at the Wellcome Trust Sanger Institute currently produce more sequences in one hour than we did in our first 10 years of operation. A great deal of computational resource is then needed to process that data.
Scientists used supercomputers to find a new class of materials that possess an exotic state of matter known as the quantum spin Hall effect. The researchers published their results in the journal Science in December 2014, where they propose a new type of transistor made from these materials.
Qlucore Omics Explorer 3.1 advanced data analysis software features a well-defined open interface to R. The interface allows users to utilize a broad range of statistical tests, to use existing tests in R, and to write new ones. The inbuilt statistical functions of the bioinformatics program are extended with the R interface to include the full suite of statistical methods available in R.
For those on the front lines of treating cancer, speed and precision are key to patients’ survival. Pediatric cancer researchers have been making incredible strides in accelerating delivery of new diagnostic and treatment options. Supercomputer-powered genetic diagnosis is being used to harness the power of high throughput genomic and proteomic methods and is playing a key role in improving the outcome for children with genetic diseases.
Rare diseases — those that affect fewer than one in 200,000 people — are often identified early in life. Some 30 percent of children afflicted by these "orphan diseases" do not live to see their fifth birthday. While the US Orphan Drug Act of 1983 was written into law to promote research on the topic, the cost of identifying the source and progression of these diseases remains prohibitive for many families.
Personal information taken from social media, blogs, page views and so on is used to detect disease outbreaks, but does this violate our privacy, consent and trust? Dr. Effy Vayena from the University of Zurich and colleagues have mapped the numerous ethical challenges confronting digital disease detection and propose a framework to address the questions.
The author of this wonderful text delivers a brief, easy-to-absorb, yet very comprehensive text on modeling real-world data with Maple. Maple is software for performing mathematics, with a none-too-steep learning curve. In the introduction, the author is quick to point out that this is neither a detailed textbook of mathematical modeling, nor Maple. It is, however, a very well-written manual of introductory modeling and use of Maple.
Statistical decision making resembles a process Alan Turning's team did in Bletchley Park to work out the settings of German enigma machines. In order to make use of the large clicking machine, Turing's team analyzed pairs of randomly intercepted German messages, aligned them one above the other to accumulate evidence from letter pairs until they reach a threshold level of certainty that the messages were sent on identical enigma machine.
The microbes that call the New York City subway system home are mostly harmless, but include samples of disease-causing bacteria that are resistant to drugs — and even DNA fragments associated with anthrax and Bubonic plague. A pathogen map of a city provides a baseline assessment. Repeated sampling could be used for long-term, accurate disease surveillance, bioterrorism threat mitigation, and large-scale health management.
A team of researchers has developed a low-cost smartphone accessory that can perform a point-of-care test that simultaneously detects three HIV and syphilis infectious disease markers from a finger prick of blood in just 15 minutes. The device replicates, for the first time, all mechanical, optical and electronic functions of a lab-based blood test. Specifically, it performs an ELISA assay.
Top researchers are using mathematical modelling and heavy computations to understand how the brain can both remember and learn. Ten years ago, when the team of Marianne Fyhn and Torkel Hafting Fyhn cooperated with the Nobel Prize winning team of May-Britt and Edvard Moser at NTNU, they discovered the sense of orientation in the brain.
Scientists have identified a biological clock that provides vital clues about how long a person is likely to live. Researchers studied chemical changes to DNA that take place over a lifetime, and can help them predict an individual's age. By comparing individuals’ actual ages with their predicted biological clock age, scientists saw a pattern emerging.
The release of the film, Still Alice, in September 2014 placed a much-needed light on Alzheimer's disease, a debilitating neurological disease that affects a growing number of Americans each year. More than 5.2 million people in the U.S. are currently living with Alzheimer's. One out of nine Americans over 65 has Alzheimer's, and one out of three over 85 has the disease. For those over 65, it is the fifth leading cause of death.
Diabesity has been identified as a major global health problem by researchers and healthcare professionals world-wide, including England’s National Health Service, Brigham and Women’s Hospital and Harvard Medical School, Ain Shams University Hospital in Cairo, Egypt, and a research consortium of the European Union.
Eve, an artificially-intelligent ‘robot scientist’ could make drug discovery faster and much cheaper, say researchers. The team has demonstrated the success of the approach, as Eve discovered that a compound shown to have anti-cancer properties might also be used in the fight against malaria.
Researchers have cracked a code that governs infections by a major group of viruses, including the common cold and polio. The unnoticed code had been hidden in plain sight in the sequence of the ribonucleic acid (RNA) that makes up this type of viral genome. But researchers have unlocked its meaning and demonstrated that jamming the code can disrupt virus assembly. Stopping a virus assembling can stop it functioning.
American leafminer moth Coptodisca lucifluella has been invading Italian walnut orchards since 2010. Interestingly, the moth lives on pecan trees in the United States, but invaded a new host plant in Europe: the walnut tree.
Cancer researchers must use one of the world's fastest computers to detect which versions of genes are only found in cancer cells. Every form of cancer, even every tumor, has its own distinct variants. A research group is working to identify the genes that cause bowel and prostate cancer, which are both common diseases. There are 4,000 new cases of bowel cancer in Norway every year. Only six out of 10 patients survive the first five years.
WinWedge 3.5 collects data from laboratory instruments, balances, pH meters, moisture analyzers, micrometers, flow meters, temperature sensors, bar code scanners, GPS receivers, and other serial output devices. It is designed to easily input data in real time into MS Excel or any Windows application software and to be quick and easy to set up for any instrument.
Quantum chemical calculations have been used to solve big mysteries in space. Soon the same calculations may be used to produce tomorrow’s cancer drugs. Quantum chemical calculations are needed to explain what happens to the electrons’ trajectories within a molecule, and the results of a quantum chemical calculation are often more accurate than what is achievable experimentally.
- Page 1