Science & Technology
This discovery of asymmetric ferroelectricity in engineered crystals comes exactly 100 years following the discovery of ferroelectricity in certain naturally occurring crystals. Ferroelectric crystals - crystals that show two equal bistable polarization states - are now used in many high-tech applications including solid-state memory, RFID cards, sensors and precision actuators.
Allegedly, the advantages of using graphene oxide for water treatment lies in the enhancement of membrane performance, as it mitigates the effects of "fouling." Fouling is apparently one of the biggest challenges operators of membrane-based water filtration systems face.
"Fouling" describes the presence or accumulation of unwanted material in water including scale, general dirt, and debris, dissolved metals, or biological matter, and bacteria. Fouled water can cause a variety of problems if left untreated.
In collaboration with Hydrasyst Limited, G2O technologies managed to coat membranes with graphene oxide which they state will improve operational efficiency, reduce energy consumption and decrease chemical usage.

Images of Umm Jirsan. A Entrance to the western passage and surrounding area. B Entrance to the western passage. Note the team members on the right hand wall for scale. C The back chamber in which the excavation was carried out. D Plotted sampling square before surface collection and excavation. Location of the site shown in the inset.
The Umm Jirsan lava tube system is located in the Harrat Khaybar Lava Field, 130 km north of Medina in the Kingdom of Saudi Arabia.
Taphonomic studies of fossil bone accumulations as part of the 'Palaeodeserts Project' to track human and animal migration across the Arabian Peninsula, has identified hundreds of thousands of bone accumulations consisting of over 40 different species, including horses, asses, cattle, camels, rodents, caprids, and even humans.
Although the lava-tube was discovered in the mid-2000s, only recently did researchers venture deeper into the tube system, where the bone accumulations were found.
By examining MRI data from a large Open Science repository, researchers reconstructed a brain connectivity pattern, and applied it to an artificial neural network (ANN). An ANN is a computing system consisting of multiple input and output units, much like the biological brain. A team of researchers from The Neuro (Montreal Neurological Institute-Hospital) and the Quebec Artificial Intelligence Institute trained the ANN to perform a cognitive memory task and observed how it worked to complete the assignment.
This is a unique approach in two ways. Previous work on brain connectivity, also known as connectomics, focused on describing brain organization, without looking at how it actually performs computations and functions. Secondly, traditional ANNs have arbitrary structures that do not reflect how real brain networks are organized. By integrating brain connectomics into the construction of ANN architectures, researchers hoped to both learn how the wiring of the brain supports specific cognitive skills, and to derive novel design principles for artificial networks.
They found that ANNs with human brain connectivity, known as neuromorphic neural networks, performed cognitive memory tasks more flexibly and efficiently than other benchmark architectures. The neuromorphic neural networks were able to use the same underlying architecture to support a wide range of learning capacities across multiple contexts.

Recurrent nova RS Oph is in Outburst. The last large outburst of RS Oph occurred in Feb. 2006, when it reached visual mag 4.5.
Every 20 years or so, a thermonuclear explosion occurs on the surface of RS Oph, a white dwarf in the constellation Ophiuchus. This week it happened again. On Aug. 8th, the brightness of the tiny star increased 600-fold, from magnitude +12 to +5. Keith Geary of Ireland was the first to notice. Hours later, Italian astronomer Ernesto Guido and colleagues photographed the outburst using a remote-controlled telescope in Australia:
This is called a "recurrent nova," and it is rare. In the whole Milky Way galaxy, only 7 star systems are known to produce such explosions.
RS Oph is actually a binary star--a very lopsided one. On one side is a white dwarf, on the other is a red giant. There's very little distance between the two, so the gravity of the white dwarf is able to pull gaseous material off the larger star down onto itself. Every couple of decades, enough matter accumulates to trigger an explosion. The last time this happened was back in 2006.
Comment: Note that although this is expected to happen every 20 years or so, the time elapsed since the last outburst was just 15 years.
Comment: See also:
- Mystery of monster star's dimming detailed in new Hubble study
- Betelgeuse is neither as far nor as large as once thought
- A giant black hole suddenly went dark, and no one knows why
- Astronomers observe SIX galaxies undergo sudden, dramatic transitions into super-bright quasars
- New mysterious radio flash discovered
- 100 previously catalogued stars just vanished! Mysterious 'wave' of star-forming gas may be the largest structure in the galaxy
If you're swimming in a large volume of water, it's difficult to judge the properties of distant floating objects with exacting precision, and the same goes for our star system, swirling around the galaxy.
This is perhaps why scientists have just discovered a new structure encompassing a long curl of gas so gigantic that no one can say whether or not this is a section of a galactic spiral arm we simply hadn't noticed until now, according to a recent study shared on a preprint server and accepted for publication in The Astrophysical Journal Letters.
Comment: See also:
- Milky Way not unusual, surprising astronomers
- Why is this weird, metallic, flashing star hurtling out of the Milky Way?
- Andromeda galaxy halo 'bumps into' the halo around the Milky Way
- Mysterious 'wave' of star-forming gas may be the largest structure in the galaxy
- Hum of plasma waves in the 'void' of interstellar space detected by Voyager 1
- Mystery of monster star's dimming detailed in new Hubble study
- MindMatters: The Holy Grail, Comets, Earth Changes and Randall Carlson
- Behind the Headlines: Earth changes in an electric universe: Is climate change really man-made?
- Behind the Headlines: The Electric Universe - An interview with Wallace Thornhill
University of Queensland PhD candidate Tim Richards, from the Dinosaur Lab in UQ's School of Biological Sciences, led a research team that analysed a fossil of the creature's jaw, discovered on Wanamara Country, near Richmond in North West Queensland.
"It's the closest thing we have to a real-life dragon," Mr Richards said.
"The new pterosaur, which we named Thapunngaka shawi, would have been a fearsome beast, with a spear-like mouth and a wingspan around seven metres.
"It was essentially just a skull with a long neck, bolted on a pair of long wings.
"This thing would have been quite savage.
"It would have cast a great shadow over some quivering little dinosaurs who wouldn't have heard them coming until it was too late."
Mr Richards said the skull alone would have been just over one metre long, containing around 40 teeth, perfectly suited to grasping the large predatory fishes known to inhabit Queensland's no-longer-existent Eromanga Sea.
"Even though pterosaurs could fly, they were nothing like birds, or even bats," he said.
"Pterosaurs were a successful and diverse group of reptiles - the very first back-boned animals to take a stab at powered flight."
The new species belonged to a group of pterosaurs known as anhanguerians, which inhabited every continent during the latter part of the Age of Dinosaurs.

Praveen Arany, assistant professor of oral biology in the UB School of Dental Medicine, led the development of a burn healing protocol for light therapy.
The research, published in Scientific Reports, found that photobiomodulation therapy - a form of low-dose light therapy capable of relieving pain and promoting healing and tissue regeneration - sped up recovery from burns and reduced inflammation in mice by activating endogenous TGF‐beta 1, a protein that controls cell growth and division.
The findings may impact therapeutic treatments for burn injuries, which affect more than 6 million people worldwide each year, says lead investigator Praveen Arany, DDS, PhD, assistant professor of oral biology in the UB School of Dental Medicine.
"Photobiomodulation therapy has been effectively used in supportive cancer care, age-related macular degeneration and Alzheimer's disease," says Arany. "A common feature among these ailments is the central role of inflammation. This work provides evidence for the ability of photobiomodulation-activated TGF-beta 1 in mitigating the inflammation, while promoting tissue regeneration utilizing an elegant, transgenic burn wound model."

A combination of schedule conflicts on both the ISS and with the Atlas 5 could push back the CST-100 Starliner's test flight by months if it does not launch in August.
The Starliner was supposed to launch an uncrewed test flight to the space station on August 3, SpaceNews reports, but the mission was scrubbed three hours before launch because valves in the propulsion system were stuck in the closed position for reasons that engineers still haven't been able to sort out, though they suspect the spacecraft may have been damaged by a rainstorm during transportation.
Regardless, Boeing doesn't have very long to figure it out before the mission gets sidelined by the space station's packed schedule in the coming months.
Comment: The is just the latest in a litany of problems and failures - some of which were deadly - involving the US government and its partners, and one is beginning to get the impression that it may be that there are serious problems within the organizations themselves:
- NASA's 'Mole' officially fails Mars mission, follows two years of troubleshooting
- NASA identifies possible fix for Hubble after major glitch put space telescope into safe mode for past month
- Outrage as US admits $1.7 trillion F-35 program a FAILURE
- "Potentially catastrophic" wiring issue on Boeing 737MAX confirmed by FAA











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