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29 articles from ScienceDaily

How visual information travels from the retina to the midbrain

Neuroscientists have revealed the precise connections between sensory neurons inside the retina and the superior colliculus, a structure in the midbrain. Neuropixels probes are a relatively recent development, representing the next generation of electrodes. Densely packed with recording points, Neuropixels probes are used to record the activity of nerve cells, and have facilitated these recent...

What killed dinosaurs and other life on Earth?

Determining what killed the dinosaurs 66 million years ago at the end of the Cretaceous Period has long been the topic of debate, as scientists set out to determine what caused the five mass extinction events that reshaped life on planet Earth in a geological instant. Some scientists argue that comets or asteroids that crashed into Earth were the most likely agents of mass destruction, while...

Bigger plants don't always equal more nutritious ones

While increased carbon dioxide levels in the atmosphere encourage plant growth, they also reduce the nutritional value of plants, which can have a larger impact on nutrition and food safety worldwide. Researchers have discovered a new way plants are adapting to the changing climate -- information that can be used to help plants grow strong while also maintaining their nutritional value.

Investing in new water filtration membranes is worth it

In the new study, researchers performed a high-level analysis of membrane filtration systems to evaluate cost, energy consumption and greenhouse gas emissions associated with desalination and wastewater treatment. The researchers found that municipal wastewater facilities could spend 43% more on antifouling membranes for wastewater treatment and up to three times more on antifouling membranes for...

Researchers explore enzymes that use a cation, not oxygen-addition, to drive reactions

Researchers defined the structure of a substrate-bound iron 2-oxoglutarate (Fe/2OG) enzyme to explore whether these enzymes could be used to create a wide array of molecules. They saw that Fe/2OG enzymes likely utilize cations -- highly reactive species -- to drive desaturation during catalysis. The work could lead to the use of Fe/2OG enzymes in making a wide array of valuable molecules.

Daytime eating may benefit mental health

Investigators have designed a study that simulated night work and then tested the effects of daytime and nighttime eating versus daytime eating only. The team found that, among participants in the daytime and nighttime eating group, depression-like mood levels increased by 26 percent and anxiety-like mood levels by 16 percent. Participants in the daytime-only eating group did not experience this...

Mysterious diamonds came from outer space

Strange diamonds from an ancient dwarf planet in our solar system may have formed shortly after the dwarf planet collided with a large asteroid about 4.5 billion years ago, according to scientists. The research team says they have confirmed the existence of lonsdaleite, a rare hexagonal form of diamond, in ureilite meteorites from the mantle of the dwarf planet.

New ice-shedding coating is 100x stronger than others

To combat the hazards of ice, a mechanical engineer has developed a sprayable ice-shedding material that is 100 times stronger than any others. It's been tested by Boeing under erosive rain conditions at 385 miles per hour and outperformed current state-of-the-art aerospace coating technologies.

Scientists redefine obesity with discovery of two major subtypes

Scientists have identified two distinct types of obesity with physiological and molecular differences that may have lifelong consequences for health, disease and response to medication. The findings offer a more nuanced understanding of obesity than current definitions and may one day inform more precise ways to diagnose and treat obesity and associated metabolic disorders.

HSD3B1 gene research shows association between genotype and endometrial cancer

The HSD3B1 gene could hold clues for predicting and treating endometrial cancer, according to a novel finding. Researchers found a certain HSD3B1 genotype was more common in women with type 2 endometrial cancer. Those patients show lower survival rates than those diagnosed with type 1 endometrial cancer, likely driven by the fact that type 2 patient cells are less hormone-dependent.

Through the quantum looking glass

An ultrathin invention could make future computing, sensing and encryption technologies remarkably smaller and more powerful by helping scientists control a strange but useful phenomenon of quantum mechanics, according to new research.

Recommended blood sugar levels to avoid diabetes-related damage

The levels of long-term blood sugar, HbA1c, can be used to accurately determine the risk of a person with type 1 diabetes developing eye- and kidney complications. A study has shown that this level should be lower than 53 mmol/mol (7%). The study has followed individuals for more than 30 years after the onset of type 1 diabetes.

Behavioral research: Study reveals that students aren't ideal test subjects

Students are popular test subjects for many studies in behavioral sciences. However, using only students does not reveal the full picture about people in general. In fact, many of the students' decisions in those experiments differ from those of other population groups. These are the findings of a new, extensive study consisting of 36 experiments which was conducted by a team of behavioral...

How many drinks is too many?

A new rodent study shows that even small quantities of alcohol can trigger epigenomic and transciptomic changes in brain circuitry in an area that is crucial in the development of addiction.