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Category Archives: Chemistry

Machine learning tool fed red wines’ chemical profiles can deduce where they’re from – Chemistry World

A new machine learning tool can analyse wines chemical profiles and use this to accurately predict where they were produced. The system could aid the wine industrys efforts to authenticate the origins of its products.

Each wine has a complex chemical profile, which is shaped by things like the soil and climate of the area where the grapes were grown its terroir as well as the individual practices of the wine producer. While individual molecules can have a big impact on a wines flavour and can provide key insights as to where the wine was produced, the vast array of compounds within any wine makes analysing it a difficult task.

A research team led by Stphanie Marchand from the University of Bordeaux, France, and Alexandre Pouget from the University of Geneva, Switzerland, developed a machine learning system to analyse the full chemical profiles of various wines. The machine learning algorithms analysed unprocessed gas chromatograms of 80 different wines produced across 12 harvest years at seven wine estates in Frances Bordeaux region. From this information, the system could deduce which wines were produced on the same estates with 100% accuracy. The system deduced the wines vintage with 50% accuracy.

The researchers note that it remains to be seen how their GC-based classifier would perform when provided with the chemical profiles of wines from beyond the Bordeaux region. They also state that it would be interesting to compare the performance of their system with an expert human wine taster in a blind taste test.

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Machine learning tool fed red wines' chemical profiles can deduce where they're from - Chemistry World

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Bruce Prichard on Chemistry With Hart Foundation & The Rockers – 411mania.com

During a recent edition of Something to Wrestle, WWE executive Bruce Prichard compared the chemistry of The Hart Foundation (Bret Hart and Jim Neidhart) and The Rockers (Shawn Michaels and Marty Jannetty) when they first started working together. Below are some highlights (via WrestlingInc.com):

I think the chemistry that Shawn and Marty had with Bret and Anvil was gold. It was instant. Sometimes it takes a while for guys styles to mesh and really have that chemistry. In my opinion, from day one when they met, they had that chemistry. It was instantaneous, and it was enjoyable to watch.You got lost in the match versus a heel and a babyface. It was spectacular, and it wasnt a hokey babyface match. It was two exciting teams going out there and having a hell of a match. Two different styles, and I thought they gelled awesome together. It was some of the greatest matches.

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Bruce Prichard on Chemistry With Hart Foundation & The Rockers - 411mania.com

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Research shows how a common form of trauma can seriously alter your brain chemistry: ‘[The findings] are striking’ – Yahoo News

Trauma from experiencing extreme weather events and other climate disasters can change the way your brain works, making it harder to process information, according to a new study.

Researchers from the University of California and California State University analyzed existing electroencephalography (EEG) scans taken from survivors of Californias 2018 Camp Fire, the deadliest wildfire in state history.

They then compared the group to a control population that had never been exposed to the fire, finding that those who had survived the fire showed significant differences in brain activity and cognitive function.

These findings are worthy of note, as much of the previous research related to climate change-caused disasters focused on more subjective, self-reported impacts like mood and stress disorders. Co-author Jyoti Mishra told The Hill that this study aimed to identify more objective changes to the brain.

And we find that indeed, there are specific cognitive differences relative to a control population that was never exposed to the fires, she told the outlet.

For instance, fire survivors were more prone to distractibility. They also appeared to have higher frontal lobe activity, which indicates they were putting in more effort to process information.

Over the last 50 years, the frequency of weather disasters has increased by five times, according to the World Meteorological Organization. These catastrophes kill an average of 115 people and cause an estimated $202 million in losses every day, WHO reports.

The new findings add to a body of research that explores how trauma affects the brain. For instance, researchers from the University of Rochester found that trauma can be life-changing for an individual, physically altering the brain, which appears to re-wire itself after these experiences.

We are learning more about how people exposed to trauma learn to distinguish between what is safe and what is not, Benjamin Suarez-Jimenez, one of the studys authors, told Neuroscience News. Their brain is giving us insight into what might be going awry in specific mechanisms that are impacted by trauma exposure, especially when emotion is involved.

Mishra says that the new study is important in understanding how natural disasters can affect mental wellness.

I think mental health has been overlooked for a long time in this context, Mishra told The Hill. The objective findings that we have, in terms of the cognitive and brain function changes, they are striking in that they appear even six months to a year after the first disaster actually hit. So the communities are living, in this case, with changes in their physiology that are long-lasting and coping with that stress on a daily basis.

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Research shows how a common form of trauma can seriously alter your brain chemistry: '[The findings] are striking' - Yahoo News

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CultureLab: Teaching science through cooking with Pia Sorenson’s real life ‘Lessons in Chemistry’ – New Scientist

5 December 2023

Did your chemistry lessons involve baking chocolate lava cakes? Have you ever wanted to eat your biology homework? While Lessons in Chemistry brought a fictional cooking-as-chemistry story to TV viewers this fall, real-life scientist Pia Srensens students are some of the few who can actually answer yes.

Srensens directs Harvard Universitys Science and Cooking program, which teaches science lessons through the culinary arts. She is the author and editor of several books, including the best-seller Science and Cooking: Physics meets Food, from Homemade to Haute Cuisine.

In this episode of CultureLab, Pia explains how understanding chemistry and biology can help us to make the perfect cheese sauce, offers up a masterclass in fermentation and teaches us what insects have to do with why your avocado goes brown and why acids can stop the process. She also describes how to make Lutfisk, Swedens gelatinous answer to ceviche, an admittedly acquired taste of a dish.

To read about subjects like this and much more, visit newscientist.com.

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CultureLab: Teaching science through cooking with Pia Sorenson's real life 'Lessons in Chemistry' - New Scientist

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Why didn’t radiation prevent life on Earth from starting? – Cosmos

Biophysicists might be able to answer the question of why the chemical building blocks which formed the first life on earth were able to survive despite being bathed in gamma radiation.

Earth formed about 4.5 billion years ago. Its estimated that the first life on our planet single-celled organisms emerged out of the primordial soup of chemicals in the first oceans 4 billion years ago. But its not clear why radiation didnt prevent these chemicals from forming life in the first place.

Today, Earth is protected from harmful cosmic radiation by our magnetic field. Scientists arent clear on the exact age, but its estimated that the magnetic field only formed, at most, about 3.5 billion years ago.

Such radiation causes the production of reactive forms of oxygen that damage organic molecules.

New research published in Nature Communications suggests that the first cell-like structures on Earth contained radiation-resistant manganese antioxidants, protecting the first cells to evolve.

Previous studies have shown that chains of phosphate residues and manganese ions protect organic molecules from oxidative stress caused by radiation. This has been seen in the bacterium Deinococcus radiodurans, which is resistant to high doses of gamma radiation.

Two models of the first cells, called protocells, are proposed in the new research. These coacervates (liquid droplets that model protocells) are polyphosphate-manganese and polyphosphate-peptide coacervates.

Exposure to high levels of gamma radiation saw the polyphosphate-manganese coacervates stay intact while the polyphosphate-peptide coacervates were destroyed.

The authors, led by biophysicist Professor Bing Tian from the Zheijiang University in China, believe that this could give an insight into how protocells formed and were able to survive high radiation on early Earth.

They suggest that a polyphosphate-manganese coacervate might have provided protection for proteins and the first DNA molecules that were absorbed into the first protocells.

These protocells would over a billion years evolve into the first cyanobacteria and eventually eukaryotic cells which would evolve into the first animals.

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Why didn't radiation prevent life on Earth from starting? - Cosmos

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Their chemistry is so sweet: Despite Hinting at a Potential Nova Debut in the MCU, Iman Vellani Does Not Have Her … – FandomWire

Though The Marvels did not set the box office on fire, the chemistry between Brie Larsons Captain Marvel, Iman Vellanis Ms Marvel, and Teyonah Parris Monica Rambeau, was the bright spark of the film. One of the entertaining threads that ran through the plotline, was Vellanis Ms Marvel attempting to come up with creative superhero names for Parris Monica Rambeau.

While the Ms Marvel star put forth many fun monikers for the character, the name Nova that she suggested, made audiences wonder if she was hinting at the potential future appearance of Richard Rider, aka Nova, in a possible Young Avengers film. Vellani though, was quick to clarify that she was in fact, wanting to see another version of the character.

Also Read: Dont move too much: Despite Being the Biggest MCU Fan, Iman Vellani Finds 1 Aspect of Filming to be Highly Embarrassing

The culmination of The Marvels starring Brie Larson and Iman Vellani, dropped major hints about a potential Young Avengers roundup which could be the next big project for the MCU. While there is still no confirmation or information regarding this, Vellani, for her part, seemed to hint at the presence of one Marvel character who could play a significant role, if the film materialized.

The Ms Marvel actors entertaining game of finding a superhero name for Monica Rambeau in the film, led to audiences wondering if one of the names, Nova, was indicative of the Marvel character Richard Rider aka Nova, and his possible inclusion in a film based on Young Avengers.

Vellani though, was quick to state that she was actually a fan of the other iteration of the character named Sam Alexander, a thirteen-year-old hero who inherited a Nova helmet from his father. While the young star was hypothetically open to having both versions of Nova, she spoke to The Direct about why Sam Alexander appealed to her, along with her affinity for Miles Morales and The Champions comics, in which her character Kamala Khan also features.

I love Sam Alexander, and I love Miles [Morales]. Im a big fan of The Champions comics, especially the more recent runs. Like Kamala, Miles, and Sam, their chemistry is so sweet. And I want her to have like more that young energy in her life. So yeah, those two would probably be my top choice. I think.

When asked if Champions would be a better name for her team than Young Avengers, Vellani stated that she loved the former, but wasnt sure how the fan base would react to the name.

Also Read: I would love to see that: Iman Vellani Reveals Her Pick For Ms. Marvel Season 2 Villain

The possibility of a Young Avengers film in the MCU is still in a very nascent stage. But that didnt stop Ms Marvel star Iman Vellani from dreaming about a potential team of young superheroes led by her character Kamala Khan. While the star held her cards close to her chest regarding the various young superheroes who could feature in the ensemble, she expressed her desire to see a crossover with Tom Hollands Spider-Man. In an interview with The Direct, Vellani said,

I would love to see a team-up [with Tom Hollands Spider-Man]. Their team-ups in the comics are honestly one of my favorites. So, that would be cool.

Like The Marvels actor, fans too would be extremely eager to see these two young stars join forces sometime in the future. Until then, it remains to be seen if Marvel and Kevin Feige make a Young Avengers film happen.

Also Read: Iman Vellani was Proven Wrong About 1 MCU Debate that Even Confused the Fans

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Their chemistry is so sweet: Despite Hinting at a Potential Nova Debut in the MCU, Iman Vellani Does Not Have Her ... - FandomWire

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