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Ecology: Endangered Species
Published

Primordial germ cells made from northern white rhino stem cells      (via sciencedaily.com) 

In its race to advance assisted reproduction and stem cell associated technologies to save the northern white rhinoceros from extinction, researchers announce a major breakthrough: the creation of primordial germ cell-like cells (PGCLSs) from induced pluripotent stem cells of the northern white rhino Nabire. Now there is one last step to master for the production of artificial rhino gametes (eggs and sperm) from preserved tissue. If successful, this would boost the availability and genetic diversity of embryos and become a cornerstone for saving the northern white rhinoceros.

Geoscience: Environmental Issues
Published

Researchers shed (laser) light on emerging water treatment technique      (via sciencedaily.com) 

Assuring that a growing global population has access to clean water will require new water treatment methods. One of these next-generation methods involves a form of iron called ferrate, which creates fewer toxic byproducts than chemicals like chlorine and is potentially cheaper and easier to deploy than complex ozone treatment systems. For ferrate to work best, however, it needs to be combined with other compounds or excited by light energy. Now, using a technique involving ultra-fast laser and X-ray pulses, a team of researchers has revealed new details about the chemical reaction that occurs when ferrate is exposed to visible and ultraviolet light.

Space: The Solar System
Published

Hubble detects ghostly glow surrounding our solar system      (via sciencedaily.com) 

Imagine walking into a room at night, turning out all the lights and closing the shades. Yet an eerie glow comes from the walls, ceiling, and floor. The faint light is barely enough to see your hands before your face, but it persists. Sounds like a scene out of a scary movie?" No, for astronomers this is the real deal. But looking for something that's close to nothing is not easy.

Ecology: Endangered Species Environmental: Ecosystems
Published

Uncovering plant invasions in the tropics      (via sciencedaily.com) 

An international collaboration of scientists has created the first inventory of flora introduced to the tropics, filling a knowledge gap about invasive plants in the tropics.

Space: Cosmology Space: Structures and Features
Published

Without more data, a black hole's origins can be 'spun' in any direction      (via sciencedaily.com) 

A study finds that, for now, the catalog of known black hole binaries does not reveal anything fundamental about how black holes form. More data will be needed to determine whether the invisible giants arose from a quiet galactic disk or a more dynamic cluster of stars.

Computer Science: Quantum Computers Mathematics: Modeling Space: Cosmology
Published

Curved spacetime in the lab      (via sciencedaily.com) 

In a laboratory experiment, researchers have succeeded in realizing an effective spacetime that can be manipulated. In their research on ultracold quantum gases, they were able to simulate an entire family of curved universes to investigate different cosmological scenarios and compare them with the predictions of a quantum field theoretical model.

Space: Cosmology
Published

Astronomers report most distant known galaxies, detected and confirmed      (via sciencedaily.com) 

Astronomers have discovered the earliest and most distant galaxies confirmed to date using data from the James Webb Space Telescope. The telescope captured light emitted by these galaxies more than 13.4 billion years ago, which means the galaxies date back to less than 400 million years after the Big Bang, when the universe was only 2 percent of its current age.

Environmental: Ecosystems
Published

New study highlights urgent need to safeguard deep reefs -- one of the largest and least protected ecosystems      (via sciencedaily.com) 

New study finds very few deep reefs have any form of protection, and face a multitude of threats, set only to escalate in the near future. Deep reefs are found below 30m and have a larger geographic range than shallow reefs. Deep reefs are biological hotspots, essential for climate change resilience, ocean health and food security, and a refuge for ocean life threatened in shallow waters.

Environmental: Ecosystems Offbeat: Earth and Climate
Published

Microbial miners could help humans colonize the moon and Mars      (via sciencedaily.com) 

The biochemical process by which cyanobacteria acquire nutrients from rocks in Chile's Atacama Desert has inspired engineers at the University of California, Irvine to think of new ways microbes might help humans build colonies on the moon and Mars.

Paleontology: Climate
Published

Assessing El Nino 'flavors' to unravel past variability, future impact      (via sciencedaily.com) 

By assessing so-called 'flavors' of El Nino events in past climate records and model simulations, researchers have a clearer picture of El Nino patterns over the past 12,000 years and are able to more accurately project future changes and impacts of this powerful force.

Offbeat: Paleontology and Archeology Paleontology: Dinosaurs Paleontology: General
Published

Dinosaur teeth reveal what they didn't eat      (via sciencedaily.com) 

Scratches on dinosaur teeth could reveal what they really ate. Dental microwear texture analysis (DMTA) has now been used to infer the feeding habits of large theropods, including Allosaurus and T. rex. By taking 3D images of individual teeth and analyzing the pattern of marks scratched into them, researchers could reason which dinosaurs may have frequently crunched on hard bone and which may have regularly eaten softer foods and prey. This technique opens up a new avenue of research for paleontology, helping us to better understand not only dinosaurs themselves but also the environment and communities in which they lived.

Environmental: Ecosystems
Published

Bat diversity and abundance are highest in old deciduous forest stands on the river banks in Eastern Ukraine      (via sciencedaily.com) 

European forest-dwelling bats require complex woodland structures at both the micro-habitat and the landscape level for successful breeding in summer. Particularly, the results from Kharkiv region (Eastern Ukraine) demonstrate that large stands of mature forests older than 90 years improved the breeding activity of bats, their abundance and overall species richness. Abundance and species richness increased from upland plots surrounded by agricultural lands to riverine or waterside plots with high forest cover.

Geoscience: Environmental Issues
Published

Electric car sales drive toward cleaner air, longer lives      (via sciencedaily.com) 

Electric cars -- and their continued sales growth -- are expected to have a greener, cleaner influence on air pollution and reduce early human mortality in most, if not all, U.S. metropolitan areas.

Engineering: Graphene
Published

New way to produce important molecular entity      (via sciencedaily.com) 

A team presents a new, direct way to produce unsymmetrically constructed vicinal diamines. These structures are relevant for the function of biologically active molecules, natural products and pharmaceuticals.

Anthropology: Cultures Anthropology: Early Humans Anthropology: General Paleontology: Fossils Paleontology: General
Published

Immune system of modern Papuans shaped by DNA from ancient Denisovans, study finds      (via sciencedaily.com) 

Modern Papuans' immune system likely evolved with a little help from the Denisovans, a mysterious human ancestor who interbred with ancient humans, according to a new study.

Anthropology: Early Humans Anthropology: General
Published

How intensive agriculture turned a wild plant into a pervasive weed      (via sciencedaily.com) 

Agriculture is driving rapid evolutionary change, not just on farms but also in wild species in surrounding landscapes, new research has found.

Ecology: Trees
Published

Findings for invasive insect's life cycle could aid management in southeast      (via sciencedaily.com)     Original source 

New research findings could help scientists control the emerald ash borer, an invasive pest ravaging native ash trees in North America.

Environmental: Ecosystems
Published

Warming seas' negative impact on giant kelp starts in early life      (via sciencedaily.com) 

Kelp forests are one of the most diverse and productive natural ecosystems on the planet, but in the past 50 to 100 years significant swaths have been lost and many of the remaining systems show a declining trajectory.

Environmental: Ecosystems Environmental: Wildfires Paleontology: Climate
Published

Climate whiplash increased wildfires on California's west coast about 8,000 years ago      (via sciencedaily.com) 

Researchers have been studying the effects of the sudden decrease in global temperatures that occurred about 8,200 years ago, the so-called 8.2-kiloyear event, with the help of mineral deposits present in White Moon Cave in Northern California. New indications show that oscillations between extreme wetness and aridity in California were closely linked with the occurrence of wildfires. The researchers have concluded that such events are likely to become more common in the face of human-induced climate change.

Mathematics: General Mathematics: Modeling
Published

Finding simplicity within complexity      (via sciencedaily.com) 

With the theory that for every action, even those seemingly complex and random, there is a math problem that describes it, a researcher is publishing a new formula that helps find that equation quickly. Yes, he's speeding up science.