In the past 50 years, the western Antarctic Peninsula warmed over four times faster than the average rate of the Earth’s overall warming, according to the Antarctic and Southern Ocean Coalition. These temperature fluctuations, according to an international group of scientists, threaten species that thrive in frigid waters with negligible variation in seasonal sea temperatures.
A team of researchers in the Cockrell School of Engineering at The Univ. of Texas at Austin has invented a method for producing inexpensive and high-performing wearable patches that can continuously monitor the body’s vital signs for human health and performance tracking, potentially outperforming traditional monitoring tools such as cardiac event monitors.
On a July night, marine biologist David Gruber was scuba diving in the Solomon Islands, documenting corals and creatures known for their biofluorescence. Slime neon greens and subtle reds can be seen in video footage from National Geographic. Around 40 min into the dive, Gruber saw an unexpected entity glowing in the dark waters.
An international group of scientists reports a breakthrough in the effort to characterize the properties of graphene noninvasively, while acquiring information about its response to structural strain. Using Raman spectroscopy and statistical analysis, the group succeeded in taking nanoscale measurements of the strain present at each pixel on the material's surface.
Torrey Pines Scientific has introduced its EchoTherm Model IC50, Peltier-driven, Chilling/Heating Dry Bath with exact sample temperature control. The unit is supplied with a temperature probe to insert directly into the sample or into the sample block. The probe senses the sample temperature or sample block temperature directly and sends that information to the unit to drive and control the temperature exactly where set.
Notch receptors are core components of the signaling pathways that regulate the development of cells within the human body. Notch signaling pathways can determine how cells proliferate or change during development, and defects in Notch signaling can lead to many diseases, including several types of cancer and developmental disorders.
As the hardest substance in the human body, enamel covers the crown of a tooth, protecting the sensitive dentine beneath. Each day, teeth are subjected to the chomping and chewing of food substances, from soft bananas to hard candy. According to Live Science, the “basket-weave-like microstructure” of enamel is behind a tooth’s durability.
The decomposition of plant debris (litter) is a fundamental process that regulates the release of nutrients for plant growth and the formation of soil organic matter in forest ecosystems. A strong correlation has previously been observed between litter manganese (Mn) content and decomposition rates across a variety of forest ecosystems. However, the mechanisms underlying Mn's role in litter decomposition were not well understood.
Air Science's PURAIR 5 DuctlessFume Hoods feature a high level of operator protection where routine work is carried out. The units exceed OSHA, ANSI and all relevant international standards. The ductless design eliminates installation costs and allows the unit to be positioned over a sink or benchtop apparatus.
In a great example of “less is more,” Rice Univ. scientists have developed a powerful method to analyze carbon nanotubes in solution. The researchers’ variance spectroscopy technique zooms in on small regions in dilute nanotube solutions to take quick spectral snapshots.
It’s a grey rubber duck floating in the universe’s bathtub. In July 2014, the European Space Agency (ESA)’s Rosetta probe gleaned the shape of Comet 67P/Churyumov-Gerasimenko, or Rosetta’s Comet, for the first time. Scientists were surprised by the nucleus’ twin-lobbed form. Though not uncommon, dual objects are theorized to form when two comets collide.
Using nanometer-scale components, researchers have demonstrated the first optical rectenna, a device that combines the functions of an antenna and a rectifier diode to convert light directly into DC current. Based on multiwall carbon nanotubes and tiny rectifiers fabricated onto them, the optical rectennas could provide a new technology for photodetectors that would operate without the need for cooling.
Here are the five major reasons why R&D laboratories should use industrial CT scanning: whole part analysis in 1 hr, faster validations, non-destructive analysis, no fixtures required and free viewing software.
High-purity water is key to the success of analyses performed using (ultra) high-performance liquid-chromatography-mass spectrometry, (U)HPLC-MS, also known as LC-MS. Even so, chromatographers may consciously select top-quality salts and organic solvents for mobile phase preparation, but not apply the same level of care when choosing their source of high-purity water.
Researchers at Queen Mary Univ. of London have developed a way of assembling organic molecules into complex tubular tissue-like structures without the use of molds or techniques like 3-D printing. The study, which appears in Nature Chemistry, describes how peptides and proteins can be used to create materials that exhibit dynamic behaviors found in biological tissues like growth, morphogenesis and healing.