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Categories: Chemistry: Thermodynamics, Ecology: Trees
Published Study reveals how a tall spruce develops defense against hungry weevils
(via sciencedaily.com) Original source A study has identified genes involved in development of stone cells -- rigid cells that can block a nibbling insect from eating budding branches of the Sitka spruce evergreen tree. The insect's attack has stunted the growth of these forest giants.
Published Biotechnology offers holistic approach to restoration of at-risk forest tree species
(via sciencedaily.com) Original source Many at-risk forest tree species will probably need biotechnology along with traditional tree-breeding approaches to survive, according to new insights.
Published Sweat it out: Novel wearable biosensor for monitoring sweat electrolytes for use in healthcare and sports
(via sciencedaily.com) Wearable sensors are becoming a promising tool in personalized healthcare and exercise monitoring. In a recent study, researchers develop a novel wearable chemical sensor capable of measuring the concentration of chloride ions in sweat. By using a heat-transfer printing technique, the proposed sensor can be applied to the outer surface of common textiles to prevent skin irritation and allergies, and could also be useful in the early detection of heat stroke and dehydration.
Published Climate-friendly air conditioning inspired by termites
(via sciencedaily.com) The climate control used by termites in their mounds could inspire tomorrow's climate-smart buildings. New research shows that future buildings inspired by the termites could achieve the same effect as traditional climate control, but with greater energy efficiency and without its carbon dioxide footprint.
Published Researchers create highly conductive metallic gel for 3D printing
(via sciencedaily.com) Researchers have developed a metallic gel that is highly electrically conductive and can be used to print three-dimensional (3D) solid objects at room temperature.
Published Scientists designed new enzyme using Antarctic bacteria and computer calculations
(via sciencedaily.com) For the first time, researchers have succeeded in predicting how to change the optimum temperature of an enzyme using large computer calculations. A cold-adapted enzyme from an Antarctic bacterium was used as a basis.
Published A seed survival story: How trees keep 'friends' close and 'enemies' guessing
(via sciencedaily.com) Original source A new study that included millions of tree-year observations worldwide for the first time documents and analyzes the intricate balance between seed defense and dispersal by forest trees at a global scale.
Published Soft, ultrathin photonic material cools down wearable electronic devices
(via sciencedaily.com) Original source Overheating of wearable skin-like electronic devices increases the risk of skin burning and results in performance degradation. A research team has now invented a photonic material-based 'soft, ultrathin, radiative-cooling interface' that greatly enhances heat dissipation in devices, with temperature drops more than 56°C, offering an alternative for effective thermal management in advanced wearable electronics.
Published Squid-inspired soft material is a switchable shield for light, heat, microwaves
(via sciencedaily.com) Original source With a flick of a switch, current technologies allow you to quickly change materials from being dark to light, or cold to hot, just by blocking or transmitting specific wavelengths. But now, inspired by squid skin, researchers report a soft film that can regulate its transparency across a large range of wavelengths -- visible, infrared and microwave -- simultaneously. They demonstrated the material in smart windows and in health monitoring and temperature management applications.
Published 'Shoebox' satellites help scientists understand trees and global warming
(via sciencedaily.com) Original source As scientists try to understand the effect of climate on trees, advances in imaging technology are helping them see both the whole forest and every individual tree. High-resolution images taken by cubesats, small, shoebox-sized devices launched into low Earth orbit, are helping environmental scientists make more precise measurements about trees' response to a warming climate.
Published Inside-out heating and ambient wind could make direct air capture cheaper and more efficient
(via sciencedaily.com) Original source Chemical engineers use coated carbon fibers and eliminate steam-based heating in their simpler design, which also can be powered by wind energy.
Published Energy harvesting via vibrations: Researchers develop highly durable and efficient device
(via sciencedaily.com) Original source An international research group has engineered a new energy-generating device by combining piezoelectric composites with carbon fiber-reinforced polymer (CFRP), a commonly used material that is both light and strong. The new device transforms vibrations from the surrounding environment into electricity, providing an efficient and reliable means for self-powered sensors.
Published Sustainable technique to manufacture chemicals
(via sciencedaily.com) Original source A newly published study details a novel mechanochemistry method that can produce chemicals using less energy and without the use of solvents that produce toxic waste.
Published Scientists use seaweed to create new material that can store heat for reuse
(via sciencedaily.com) Original source Scientists have created a new material derived from seaweed that can store heat for re-use. It could be used to capture summer sun for use in winter, or to store heat from industry that currently goes up the chimney, potentially slashing carbon emissions. The material is in the form of small beads made from alginate, which is cheap, abundant and non-toxic. It stores heat four times more efficiently than a previous material the team had developed.
Published 'Heat highways' could keep electronics cool
(via sciencedaily.com) Original source As smart electronic devices become smaller and more powerful, they can generate a lot of heat, leading to slower processing times and sudden shutdowns. Now researchers use an electrospinning approach to produce a new nanocomposite film. In tests, the film dissipated heat four times more efficiently than similar materials, showing that it could one day be used to keep electronics cool.
Published Older trees accumulate more mutations than their younger counterparts
(via sciencedaily.com) Original source A study of the relationship between the growth rate of tropical trees and the frequency of genetic mutations they accumulate suggests that older, long-lived trees play a greater role in generating and maintaining genetic diversity than short-lived trees.
Published The other side of the story: How evolution impacts the environment
(via sciencedaily.com) Original source Researchers show that an evolutionary change in the length of lizards' legs can have a significant impact on vegetation growth and spider populations on small islands in the Bahamas. This is one of the first times, the researchers say, that such dramatic evolution-to-environment effects have been documented in a natural setting.
Published Researchers finds a way to reduce the overheating of semiconductor devices
(via sciencedaily.com) Original source Scientists have identified a method for improving the thermal conductivity of thin metal films in semiconductors using surface waves for the first time in the world.
Published Thermal energy stored by land masses has increased significantly
(via sciencedaily.com) Original source There are many effects of climate change. Perhaps the most broadly known is global warming, which is caused by heat building up in various parts of the Earth system, such as the atmosphere, the ocean, the cryosphere and the land. 89 percent of this excess heat is stored in the oceans, with the rest in ice and glaciers, the atmosphere and land masses (including inland water bodies). An international research team has now studied the quantity of heat stored on land, showing the distribution of land heat among the continental ground, permafrost soils, and inland water bodies. The calculations show that more than 20 times as much heat has been stored there since the 1960s, with the largest increase being in the ground.
Published Study leads to milestone advances in understanding lethal bronzing of palm trees
(via sciencedaily.com) Original source Scientists have identified a key chemical associated with lethal bronzing (LB) infected palm trees. LB is a bacterial disease that kills more than 20 species of palm trees in the Southern United States and Caribbean and has been devastating the Florida green industries for nearly two decades.