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Categories: Engineering: Nanotechnology, Paleontology: Climate

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Geoscience: Environmental Issues Geoscience: Geology Paleontology: Climate Paleontology: General
Published

Crawford Lake, Canada, chosen as the primary marker to identify the start of the Anthropocene epoch      (via sciencedaily.com)     Original source 

An international team of researchers has chosen the location which best represents the beginnings of what could be a new geological epoch, the Anthropocene. The Anthropocene Working Group have put forward Crawford Lake, in Canada, as a Global Boundary Stratotype Section and Point (GSSP) for the Anthropocene. A GSSP is an internationally agreed-upon reference point to show the start of a new geological period or epoch in layers of rock that have built up through the ages.

Engineering: Nanotechnology
Published

Making headway in precision therapeutics with novel fully organic bioelectronic device      (via sciencedaily.com) 

Researchers have announced that they have developed the first stand-alone, conformable, fully organic bioelectronic device that can not only acquire and transmit neurophysiologic brain signals, but can also provide power for device operation.

Ecology: Endangered Species Geoscience: Geology Paleontology: Climate Paleontology: General
Published

Global cooling caused diversity of species in orchids, confirms study      (via sciencedaily.com)     Original source 

Research shows global cooling of the climate 10 million years ago led to an explosion of diversity in terrestrial orchids.

Engineering: Nanotechnology
Published

Light-activated molecular machines get cells 'talking'      (via sciencedaily.com) 

Scientists have used light-activated molecular machines to induce cell-to-cell calcium signaling, revealing a powerful new strategy for drug design. This technology could lead to improved treatments for people with heart problems, digestive issues and more.

Engineering: Nanotechnology Engineering: Robotics Research
Published

Chemists create the microspine with shape-transforming properties for targeted cargo delivery at microscale      (via sciencedaily.com) 

With the goal of advancing biomimetic microscale materials, the research team has developed a new method to create microscale superstructures, called MicroSpine, that possess both soft and hard materials which mimic the spine structure and can act as microactuators with shape-transforming properties. This breakthrough was achieved through colloidal assembly, a simple process in which nano- and microparticles spontaneously organize into ordered spatial patterns.

Ecology: Endangered Species Offbeat: Earth and Climate Offbeat: Paleontology and Archeology Paleontology: Climate
Published

Why there are no kangaroos in Bali (and no tigers in Australia)      (via sciencedaily.com)     Original source 

Researchers are using a new model to clarify why millions of years ago more animal species from Asia made the leap to the Australian continent than vice versa. The climate in which the species evolved played an important role.

Engineering: Nanotechnology Physics: Quantum Computing
Published

Researchers grow precise arrays of nanoLEDs      (via sciencedaily.com) 

A new platform enables researchers to 'grow' halide perovskite nanocrystals with precise control over the location and size of each individual crystal, integrating them into nanoscale light-emitting diodes.

Environmental: Ecosystems Geoscience: Environmental Issues Paleontology: Climate
Published

Shrinking Arctic glaciers are unearthing a new source of methane      (via sciencedaily.com)     Original source 

As the Arctic warms, shrinking glaciers are exposing bubbling groundwater springs which could provide an underestimated source of the potent greenhouse gas methane, finds new research.

Energy: Batteries Engineering: Nanotechnology
Published

Nanosheet technology developed to boost energy storage dielectric capacitors      (via sciencedaily.com) 

A research group has used nanosheet technology to develop a dielectric capacitor for advanced electronic and electrical power systems. Innovations in energy storage technology are vital for the effective use of renewable energy and the mass production of electric vehicles. The capacitor has the highest energy storage density recorded. It has a short charging time, high output, long life, and high temperature stability, making it a major advancement in technology.

Engineering: Nanotechnology
Published

Chemists discover why photosynthetic light-harvesting is so efficient      (via sciencedaily.com) 

Chemists have measured the energy transfer between photosynthetic light-harvesting proteins. They discovered that the disorganized arrangement of light-harvesting proteins boosts the efficiency of the energy transduction.

Geoscience: Environmental Issues Geoscience: Severe Weather Paleontology: Climate
Published

New study reveals abrupt shift in tropical Pacific climate during Little Ice Age      (via sciencedaily.com)     Original source 

An El Niño event has officially begun. The climate phenomenon, which originates in the tropical Pacific and occurs in intervals of a few years will shape weather across the planet for the next year or more and give rise to various climatic extremes. El Niño-like conditions can also occur on longer time scales of decades or centuries. This has been shown to have occurred in the recent past.

Engineering: Nanotechnology
Published

Researchers demonstrate single-molecule electronic 'switch' using ladder-like molecules      (via sciencedaily.com)     Original source 

Researchers have demonstrated a new material for single-molecule electronic switches, which can effectively vary current at the nanoscale in response to external stimuli. The material for this molecular switch has a unique structure created by locking a linear molecular backbone into a ladder-type structure. A new study finds that the ladder-type molecular structure greatly enhances the stability of the material, making it highly promising for use in single-molecule electronics applications.

Engineering: Nanotechnology
Published

Chemists develop new method to create chiral structures      (via sciencedaily.com)     Original source 

In trying to produce artificial chirality in the lab, chemists have found that the distribution of a magnetic field is itself chiral.

Geoscience: Earthquakes Geoscience: Geology Geoscience: Volcanoes Paleontology: Climate
Published

Research reveals sources of CO2 from Aleutian-Alaska Arc volcanoes      (via sciencedaily.com)     Original source 

Scientists have wondered what happens to the organic and inorganic carbon that Earth's Pacific Plate carries with it as it slides into the planet's interior along the volcano-studded Ring of Fire. A new study suggests a notable amount of such subducted carbon returns to the atmosphere rather than traveling deep into Earth's mantle.

Geoscience: Geology Geoscience: Volcanoes Paleontology: Climate
Published

Climate change will increase impacts of volcanic eruptions      (via sciencedaily.com)     Original source 

Volcanic disasters have been studied since Pompeii was buried in 79 A.D., leading the public to believe that scientists already know why, where, when and how long volcanoes will erupt. But a volcanologist said these fundamental questions remain a mystery.

Engineering: Graphene Engineering: Nanotechnology Offbeat: Computers and Math
Published

'Electronic skin' from bio-friendly materials can track human vital signs with ultrahigh precision      (via sciencedaily.com)     Original source 

Researchers have used materials inspired by molecular gastronomy to create smart wearables that surpassed similar devices in terms of strain sensitivity. They integrated graphene into seaweed to create nanocomposite microcapsules for highly tunable and sustainable epidermal electronics. When assembled into networks, the tiny capsules can record muscular, breathing, pulse, and blood pressure measurements in real-time with ultrahigh precision.

Chemistry: Thermodynamics Engineering: Nanotechnology
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.

Geoscience: Earth Science Geoscience: Geochemistry Geoscience: Geography Geoscience: Oceanography Paleontology: Climate
Published

There may be good news about the oceans in a globally warmed world      (via sciencedaily.com)     Original source 

An analysis of oxygen levels in Earth's oceans may provide some rare, good news about the health of the seas in a future, globally warmed world. A study analyzing ocean sediment shows that ocean oxygen levels in a key area were higher during the Miocene warm period, some 16 million years ago when the Earth's temperature was hotter than it is today.

Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Nanophotonics: Coupling light and matter      (via sciencedaily.com)     Original source 

Researchers have developed a metasurface that enables strong coupling effects between light and transition metal dichalcogenides (TMDCs).

Biology: Botany Biology: General Computer Science: General Ecology: Endangered Species Ecology: Nature Paleontology: Climate
Published

AI reveals hidden traits about our planet's flora to help save species      (via sciencedaily.com)     Original source 

Machine learning can help extract important information from the huge numbers of plant specimens stored in herbaria, say scientists.