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Even when faint, ovary scent draws sperm cells

Researchers at Indiana University Bloomington found that even when ovary extracts are diluted 100,000 times, some sperm cells still respond to the scent. This discovery may help scientists understand problems with human conception and develop a diagnostic tool for male infertility.

SourceIndiana University·JournalAnalytical Chemistry·DateMay 18, 2006

'Hollow-face illusion' affects estimates of distance and reaching tasks

A joint study by the University of Minnesota and German institutions found that participants' perceived shape of a face influences their verbal estimates and reach movements. The 'hollow-face illusion' showed similar effects on both verbal and reaching tasks, highlighting the importance of object recognition in motor actions.

Researchers develop electronic nose for multimedia

Researchers at the University of Alberta have developed an electronic nose that can recognize and capture ten different smell groupings, including fruits, coffees, gases, and spices. The device connects to a PC and uses inexpensive electronic parts to solve the complex challenge of capturing smells.

SourceUniversity of Alberta·JournalIEEE Transactions on Consumer Electronics·DateMar 31, 2004

Engineers develop odour eaters for pulp mills

Researchers at the University of Toronto have developed a novel biofiltration technique that uses bacteria to eliminate odors from pulp mill gas streams. The new technology operates at higher temperatures than existing methods, making it more cost-effective and environmentally friendly.

SourceUniversity of Toronto·JournalEnvironmental Science & Technology·DateJan 22, 2002

Simple and inexpensive, an artificial nose senses smell by seeing colors

Researchers have developed an artificial nose that senses smell by visualizing color changes in metalloporphyrin dyes, offering improved sensitivity and humidity resistance compared to human noses. The technology has various applications in industries such as food and beverage, perfume, customs checkpoints, and chemical workplaces.

How The Nose Knows

Linda Buck and colleagues found that the olfactory system uses a combination of odorant receptors to recognize different odors. The nose can discriminate a vast number of diverse odorants by recognizing distinct combinations of receptors.

SourceHarvard Medical School·JournalCell·DateMar 5, 1999