Tech and Computer

Tech and Computer news

 

 

Wed04032013

Last update06:42:42 PM GMT

Back Mathematics Mathematics

Mathematics

Origin of productivity remains in the city

  • PDF
TechAndComputer (Mar. 1, 2011) — The trend towards urbanization continues – and it has positive effects on our economy, Prof. Edwin Deutsch from the Vienna University of Technology (TU Vienna) claims.

Cities are the economically most successful areas in modern economies. More people are migrating from the countryside into the city than vice versa, with productivity and salaries higher in urbanized areas. Edwin Deutsch, Professor of Mathematical...

TechAndComputer (Mar. 1, 2011) — The trend towards urbanization continues – and it has positive effects on our economy, Prof. Edwin Deutsch from the Vienna University of Technology (TU Vienna) claims.

Cities are the economically most successful areas in modern economies. More people...

'Stupid strategies' could be best for the genes

  • PDF
TechAndComputer (Mar. 1, 2011) — Blindly copying what your parents did -- no matter how stupid it may seem -- could be the best strategy for the long-term success of your genes, according to research by the Universities of Exeter and Bristol.

The findings of the study, published in Ecology Letters, show that apparently mindless survival strategies -- such as the long-distance migration of many animals to breed at the place they were born -- may...

TechAndComputer (Mar. 1, 2011) — Blindly...

Using math to navigate the Beatles 'Strawberry Fields Forever'

  • PDF
TechAndComputer (Feb. 27, 2011) — The whimsical music of The Beatles' Strawberry Fields Forever was made possible using production and editing techniques that were groundbreaking for its time. Beatles' fans probably wouldn't have even noticed that two takes of differing pitch and speed were spliced together until Dalhousie University's Sherlock of Rock -- math professor Jason Brown -- went in to investigate.

John Lennon wrote Strawberry Fields...

TechAndComputer (Feb. 27, 2011) — The...

How nature's patterns form

  • PDF
TechAndComputer (Feb. 24, 2011) — When people on airplanes ask Alan Newell what he works on, he tells them "flower arrangements."

He could also say "fingerprints" or "sand ripples" or "how plants grow."

"Most patterns you see, including the ones on sand dunes or fish or tigers or leopards or in the laboratory -- even the defects in the patterns -- have many universal features," said Newell, a Regents' Professor of Mathematics at the University of...

TechAndComputer (Feb. 24, 2011) — When...

'Periodic table of shapes' to give a new dimension to math

  • PDF
TechAndComputer (Feb. 17, 2011) — Mathematicians are creating their own version of the periodic table that will provide a vast directory of all the possible shapes in the universe across three, four and five dimensions, linking shapes together in the same way as the periodic table links groups of chemical elements.

The three-year project should provide a resource that mathematicians, physicists and other scientists can use for calculations and...

TechAndComputer (Feb. 17, 2011) —...

Year-end test scores significantly improved in schools using Web-based tutor

  • PDF
TechAndComputer (Feb. 14, 2011) — Year-end test scores of Massachusetts middle school students whose teachers used ASSISTments, a Web-based tutoring platform developed at Worcester Polytechnic Institute (WPI), as a central part of their mathematics instruction were significantly better than those of students whose teachers did not use the platform, according to a recent study published in the Journal of Educational Computing Research.

Conducted...

TechAndComputer (Feb. 14, 2011) —...

Culling can't control deadly bat disease, mathematical model shows

  • PDF
TechAndComputer (Feb. 14, 2011) — Culling will not stop the spread of a deadly fungus that is threatening to wipe out hibernating bats in North America, according to a new mathematical model.

White-nose syndrome, which is estimated to have killed over a million bats in a three year period, is probably caused by a newly discovered cold-adapted fungus, Geomyces destructans. The new model examines how WNS is passed from bat to bat and concludes that...

TechAndComputer (Feb. 14, 2011) —...

Exercise helps overweight children think better, do better in math

  • PDF
TechAndComputer (Feb. 11, 2011) — Regular exercise improves the ability of overweight, previously inactive children to think, plan and even do math, Georgia Health Sciences University researchers report.

They hope the findings in 171 overweight 7- to 11-year-olds -- all sedentary when the study started -- gives educators the evidence they need to ensure that regular, vigorous physical activity is a part of every school day, said Dr. Catherine...

TechAndComputer (Feb. 11, 2011) — Regular...

Speedy generic approval may not benefit consumers as much as expected, mathematical model shows

  • PDF
TechAndComputer (Mar. 7, 2011) — Faster approval times for generic drugs will get them into consumers' hands quicker, but may not make the price any better, a pricing and marketing researcher has found.

A mathematical model created by Andrew Ching shows that fewer firms enter the marketplace because the chances of getting there first and commanding the best profits are dramatically smaller when drug approval times are shorter. Ching is an...

TechAndComputer (Mar. 7, 2011) — Faster...

Math may help calculate way to find new drugs for HIV and other diseases

  • PDF
TechAndComputer (Feb. 8, 2011) — Using mathematical concepts, Princeton researchers have developed a method of discovering new drugs for a range of diseases by calculating which physical properties of biological molecules may predict their effectiveness as medicines.

The technique already has identified several potential new drugs that were shown to be effective for fighting strains of HIV by researchers at Johns Hopkins University.

"The power of...

TechAndComputer (Feb. 8, 2011) — Using...

Women subject to objectifying gazes show decreased math ability

  • PDF
TechAndComputer (Feb. 4, 2011) — Women who are looked at as sexual objects not only react as sexual objects, they also exhibit less proficiency with math, according to a new study published in the March 2011 issue of the journal Psychology of Women Quarterly.

The study examined the effect of the objectifying gaze (the visual inspection of one's body by another person) on undergraduates' math performance. Motivation to interact with the...

TechAndComputer (Feb. 4, 2011) — Women who are...

The science of bike-sharing

  • PDF
TechAndComputer (Jan. 31, 2011) — The new environmentally-friendly concept of municipal "bike-sharing" is taking over European cities like Paris, and American cities like New York are also looking into the idea. It allows a subscriber to "borrow" a bike from one of hundreds of locations in the city, use it, and return it to another location at the end of the journey. It's good for commuters and for running short errands.

While the idea is gaining...

TechAndComputer (Jan. 31, 2011) — The...

Mathematical model could help predict and prevent future extinctions

  • PDF
TechAndComputer (Jan. 26, 2011) — In an effort to better understand the dynamics of complex networks, scientists have developed a mathematical model to describe interactions within ecological food webs. This research, performed by Northwestern University physics professor Adilson Motter and his student, Sagar Sahasrabudhe, is published in the January 25 issue of Nature Communications. The work illustrates how human intervention may effectively...

TechAndComputer (Jan. 26, 2011) — In an...

Mathematicians use cell 'profiling' to detect abnormalities -- including cancer

  • PDF
TechAndComputer (Jan. 25, 2011) — An Ohio State University mathematician and his colleagues are finding ways to tell the difference between healthy cells and abnormal cells, such as cancer cells, based on the way the cells look and move.

They are creating mathematical equations that describe the shape and motion of single cells for laboratory analysis.

Though this research is in its early stages, it represents an entirely new way of identifying...

TechAndComputer (Jan. 25, 2011) — An...

Soap films help to solve mathematical problems

  • PDF
TechAndComputer (Jan. 27, 2011) — Soap bubbles and films have always fascinated children and adults, but they can also serve to solve complex mathematical calculations. This is shown by a study carried out by two professors at the University of Málaga, who have succeeded in solving classic problems using just such an innovative procedure.

"With the aid of soap films we have solved variational mathematical problems, which appear in the formulation...

TechAndComputer (Jan. 27, 2011) — Soap...

Sleep researchers apply fatigue model to fatal commuter air crash

  • PDF
TechAndComputer (Jan. 20, 2011) — Washington State University sleep researchers have determined that the air traffic controller in the crash of a Lexington, Ky., commuter flight was substantially fatigued when he failed to detect that the plane was on the wrong runway and cleared it for takeoff.

Writing in the journal Accident Analysis and Prevention, the researchers come short of saying his fatigue caused the accident. But they say their...

TechAndComputer (Jan. 20, 2011) — Washington...

Mathematical model explains how complex societies emerge, collapse

  • PDF
TechAndComputer (Jan. 25, 2011) — The instability of large, complex societies is a predictable phenomenon, according to a new mathematical model that explores the emergence of early human societies via warfare. Capturing hundreds of years of human history, the model reveals the dynamical nature of societies, which can be difficult to uncover in archaeological data.

The research, led Sergey Gavrilets, associate director for scientific activities...

TechAndComputer (Jan. 25, 2011) — The...

Mathematical model for moving bottlenecks in road traffic

  • PDF
TechAndComputer (Jan. 19, 2011) — Serious traffic gridlocks, like the jam on Beijing's national expressway a few months ago which brought vehicles to a halt for days, are a real-world issue needing attention. Unfortunately, such standstills are not uncommon in Beijing, or in other cities around the world.

Such incidents motivate the analysis of traffic to minimize similar events and provide insight into road design and construction, such as where...

TechAndComputer (Jan. 19, 2011) —...

Spain: Mathematical model forecasts fewer workplace accidents in 2011 and 2012

  • PDF
TechAndComputer (Dec. 21, 2010) — The number of workplace accidents in Spain will fall progressively over 2011 and 2012, according to the predictions made by a mathematical model developed by researchers from the University of Castilla-La Mancha. The biggest drop will be in the number of accidents that take place during travel between people's homes and places of work.

Two researchers from the University of Castilla-La Mancha have combined...

TechAndComputer (Dec. 21, 2010) — The number...

Building mental muscles through theoretical physics

  • PDF
TechAndComputer (Dec. 7, 2010) — A grant from the D. J. Angus-Scientech Educational Foundation has made it possible for a student from a suburban Indianapolis high school to co-author, along with his mentor and two other scientists, a theoretical physics study in a top tier peer-reviewed scientific journal, a paper which has been selected for rapid communication due to its importance to the field.

"It is extremely rare for a high school student...

TechAndComputer (Dec. 7, 2010) — A grant...

Using chaos to model geophysical phenomena

  • PDF
TechAndComputer (Dec. 8, 2010) — Geophysical phenomena such as the dynamics of the atmosphere and ocean circulation are typically modeled mathematically by tracking the motion of air or water particles. These mathematical models define velocity fields that, given (i) a position in three-dimensional space and (ii) a time instant, provide a speed and direction for a particle at that position and time instant.

"Geophysical phenomena are still not...

TechAndComputer (Dec. 8, 2010) —...