Popular Science articles about Mathematics & Economics

This is a Various Insects photograph versus 3D model.

Airport security officers at TSA gaining insight from Sandia human behavior studies

Though seen here looking at data on a computer, Sandia National Laboratories' Ann Speed spends much of her time studying humans. A cognitive psychologist by training, Speed's work is aimed at quantifying human behaviors, an expertise highly valued -- and funded -- by the Department of Homeland Security's Transportation Security Administration.A recent Sandia National Laboratories study offers insight into how a federal transportation security officer's thought process can influence decisions made during airport baggage screening, findings that are helping the...

Loud talking and horseplay in car results in more serious incidents for teen drivers

Adolescent drivers are often distracted by technology while they are driving, but loud conversations and horseplay between passengers appear more likely to result in a dangerous incident, according to a...

Ant colonies help evacuees in disaster zones

An escape route mapping system based on the behavior of ant colonies could give evacuees a better chance of reaching safe harbor after a natural disaster or terrorist attack by...

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Rethink education to fuel bioeconomy, says report

Microbes can be highly efficient, versatile and sophisticated manufacturing tools, and have the potential to form the basis of a vibrant economic sector. In order to take full advantage of...

Genetically modified tobacco plants as an alternative for producing bioethanol

Tobacco, a high-density crop which is mown several times throughout its cycle, can produce as much as 160 tonnes of fresh matter per hectare and become a source of biomass...

Facial selection technique for ads can increase buyers by 15 percent: INFORMS Marketing Science

Merely changing the face of a model in an ad increases the number of potential purchasers by as much as 15% (8% on average), according to a study being published...

Global poverty could be up to a third higher than reported

With over one billion people in the world living on less than $1.25 per day, the World Bank aims to end 'extreme poverty' by 2030. But new research suggests that...

Personal touch signature makes mobile devices more secure

LatentGesture is a new security system that continuously monitors how a user taps and swipes a mobile device. If the movements don't match the owner's tendencies, the system recognizes the differences and can be programmed to lock the device.Passwords, gestures and fingerprint scans are all helpful ways to keep a thief from unlocking and using a cell phone or tablet. Cybersecurity researchers from the Georgia Institute of Technology...

Smoking visibility mapped for the first time

The visibility of smoking in city streets has for the first time anywhere been mapped, in new research from the University of Otago, Wellington, New Zealand.

Data from observations across the downtown area were mapped by the researchers, producing a record of the street areas where the most smokers could be seen. They used mapping methods previously used for landscape ecology and archeology.The visibility of smoking in city streets has for the first time anywhere been mapped, in new research from the University of Otago, Wellington, New Zealand.

Scientists say new computer model amounts to a lot more than a hill of beans

Professors Praveen Kumar, right, and Stephen Long developed a computer modeling system to help plant scientists breed soybean crops that produce more and use less water.Crops that produce more while using less water seem like a dream for a world with a burgeoning population and already strained food and water resources. This dream is coming...

Online retailers have clear advantage by not collecting sales tax

Two independent studies use two very different approaches to reach the same conclusion: some online retailers really do have an advantage over traditional brick-and-mortar stores.

Counterfeit contraceptives found in South America

Facundo M. Fernandez, a professor in the School of Chemistry and Biochemistry, examines an emergency contraceptive pill with ambient mass spectrometry.A survey of emergency contraceptive pills in Peru found that 28 percent of the batches studied were either of substandard quality or falsified. Many pills released the active ingredient too...

Shade grown coffee shrinking as a proportion of global coffee production

This shows the percentage (%) of the cultivated coffee area managed under different technology or shade levels. Diverse shade
has a closed or nearly closed canopy (more than 40% cover), with 10 or more species of shade trees. Scant shade has a
minimal but existing canopy (1%-40% cover) and usually 1 or 2 species of shade trees (all with fewer than 10 species). Sun
coffee has no shade or shade trees in the production area. Abbreviations: ha, hectares; km, kilometers. Source: The data are from the 2010 data set from FAO (2014).The proportion of land used to cultivate shade grown coffee, relative to the total land area of coffee cultivation, has fallen by nearly 20 percent globally since 1996, according to...

Related science article

The human food connection: A new study reveals more about our relationship to food

Plazas de mercado (open-air
markets) in Puerto Rico, such as the one shown here in San Juan (Río Piedras), are highly diverse. The crops, grown in Puerto Rico or neighboring
tropical countries, play a major role in Puerto Rican cuisine. As Puerto Ricans have migrated to many areas of the continental U.S., including the city
of Hartford, Connecticut, which is climatically, agriculturally and culturally very different from Puerto Rico, they have carried their cuisine with them. In "Key plants preserve elements of culture: A study over distance and time of fresh crops in Puerto Rican markets in Hartford, Connecticut, 'A moveable feast,'" Taylor and Anderson studied the conservation of Puerto Rican cuisine through surveys of Puerto Rican fresh produce markets in Hartford over time,
18 years, and space, by comparisons with source markets in Puerto Rico. In this transmillennial study, 84 plant crops (64 species; 32 families) were
recorded for seven categories. The largest category was viandas (fresh, starchy "root" crops and immature fruits), followed by saborizantes
(flavorings). The Puerto Rican community of Hartford demonstrated an extraordinary conservation of fresh crops, with most conserved in Hartford over the nearly two decades of this
study and between Hartford and markets in Puerto Rico. The results led to two new concepts. The persistence of these largely tropical foods in a
temperate market far removed from insular, tropical Puerto Rico shows the importance of basic foods as an element of cultural identification. The authors recognize this stability as an example of their newly coined concept of "culinary cultural conservation."
Second, their analysis of these fresh produce markets led to the conclusion that viandas, such as those highlighted in the cover image, are the most
prominent in diversity, persistence over time and distance, volume, and in terms of consumers' "willingness to pay." Accordingly, they consider the viandas as a good example of their second new
concept, a "cultural keystone food group," a food group that is emblematic of a community's culinary conservation.Tucked away in Hartford, Connecticut, a Puerto Rican community is creating a tropical home away from home through cuisine that is so authentic it has caught the attention of scientists....

Researchers help Boston Marathon organizers plan for 2014 race

After experiencing a tragic and truncated end to the 2013 Boston Marathon, race organizers were faced not only with grief but with hundreds of administrative decisions, including plans for the...

Wolves at the door: Study finds recent wolf-dog hybridization in Caucasus region

Upper panel: This is a livestock-guarding shepherd dog; middle panel: This is a livestock-guarding dog with inferred wolf ancestry (first-generation hybrid); lower panel: This is a wolf (all from Kazbegi, Georgia).Dog owners in the Caucasus Mountains of Georgia might want to consider penning up their dogs more often: hybridization of wolves with shepherd dogs might be more common, and more...

Sneak a peek through the mist to technology of the future

This image shows MisTable: reach-through personal screens for tabletops.A tabletop display with personal screens made from a curtain of mist that allow users to move images around and push through the fog-screens and onto the display, will be...

New research on gigabit wireless communications

This is an example of mmWave.Research on gigabit wireless communications has been presented by researchers from the University of Bristol at the world's leading wireless communications and networking conference, IEEE WCNC 2014, in Turkey earlier...

Experience helps restaurant managers stick with local foods

Restaurant chefs and food purchasing managers who have bought local foods in the past are more likely to continue adding them to menus and store shelves, according to a team...

New algorithm aids in both robot navigation and scene understanding

Suppose you're trying to navigate an unfamiliar section of a big city, and you're using a particular cluster of skyscrapers as a reference point. Traffic and one-way streets force you...

Attracting wild bees to farms is a good insurance policy

Inviting more wild bees to farmland is not only sustainable, but it also will pay for itself in four years or less.Investing in habitat that attracts and supports wild bees in farms is not only an effective approach to helping enhance crop pollination, but it can also pay for itself in...

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