From Our Own Borealis Blog

STEM Outreach on a Shoestring Budget

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By Alex Chattwood, Communication, Education and Outreach Co-Editor $16.7 million. That’s how much the annual Natural Sciences and Engineering Research Council […]

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Diamond-based electronics?

A May 24, 2016 news item on ScienceDaily describes the latest research on using diamonds as semiconductors, Along with being a “girl’s best friend,” diamonds also have remarkable properties that could make them ideal semiconductors. This is welcome news for electronics; semiconductors are needed to meet the rising demand for more efficient electronics that deliver and convert power. The thirst for electronics is unlikely to cease and almost every appliance or device requires a suite of electronics that transfer, convert and control power. Now, researchers have taken an important step toward that technology with a new way to dope single crystals of diamonds, a crucial process for building electronic devices. A May 24, 2016 American Institute of Physics (AIP) news release (also on EurekAlert), which originated the news item, provides more detail, For power electronics, diamonds could serve as the perfect material. They are thermally conductive, which means diamond-based devices…

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Bloguer sa maladie : 5 pistes de réflexion pour intégrer cette pratique au réseau de la santé

L’usage du blogue semble être en forte progression, autant pour trouver de l’information que pour partager son expérience de la maladie (1). Les patients blogueurs seraient de plus en plus nombreux, mais il est difficile de les chiffrer avec précision, compte tenu de la fluctuation de création / retrait des blogues et des lacunes desLire la suite

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A new frog: Pristimantis pluvialis

The extraordinarily diverse genus of frogs, Pristimantis, includes 465 recognized species, 205 of them from Colombia. The mountainous terrain of the Andes probably led to the evolution of so many different ground-dwelling frogs, in which the eggs develop directly into tiny baby frogs without going through a tadpole phase.Males of many frog species advertise for females with distinctive calls produced by vocal sacs or vocal slits. Oddly, although today's new species lacks these structures, males are still able to produce calls consisting of an irregularly pulsed series of clicks.Today's new species was found near the borders of Manu National Park in Peru. The name of the new species  refers to the high rainfall recorded at the type locality, which averages 6m annually. Males of the new species typically call during or immediately after heavy rains.For the experts: We describe a new species of Pristimantis from the humid sub-montane forest of the…

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Barcoding Bird–Tick Interactions

In the tropics, ticks parasitize many classes of vertebrate hosts. However, because many tropical tick species are only identifiable in the adult stage, and these adults usually parasitize mammals, most attention on the ecology of tick-host interactions has focused on mammalian hosts. In contrast, immature Neotropical ticks are often found on wild birds, yet difficulties in identifying immatures hinder studies of birds’ role in tropical tick ecology and tick-borne disease transmission.In the American tropics the most dangerous tick-borne disease for human is caused by Rickettsia rickettsii, the etiological agent of Rocky Mountain Spotted Fever, which is also known as blue disease. It is the most lethal (20-40% fatality rate) and most frequently reported rickettsial illness in the United States. However, it has been diagnosed throughout the Americas. There is a fairly good understanding what vector species transmit the disease, e.g. in Panama there are four tick species that are confirmed intermediate…

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Bloguer sa maladie : 5 pistes de réflexion pour intégrer cette pratique au réseau de la santé

L’usage du blogue semble être en forte progression, autant pour trouver de l’information que pour partager son expérience de la maladie (1). Les patients blogueurs seraient de plus en plus nombreux, mais il est difficile de les chiffrer avec précision, compte tenu de la fluctuation de création / retrait des blogues et des lacunes desLire la suite

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