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Archive for the ‘chemistry’ category: Page 128

Jun 21, 2022

Aerobic Respiration Part 3 (Tricarboxylic Acid Cycle/Kreb Cycle/Citric Acid Cycle)

Posted by in categories: biological, chemistry

Tricarboxylic acid cycle/kreb cycle/citric acid cycle.

#citricacidcycle #krebs #biochemistry #biology #Cellular #respiration

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Jun 19, 2022

A celebrated AI has learned a new trick: How to do chemistry

Posted by in categories: biotech/medical, chemistry, information science, robotics/AI

Sign in Welcome! Log into your account your username your password Forgot your password? Get help Default Kit Password recovery Recover your password your email A password will be e-mailed to you. HometechA celebrated AI has learned a new…


Artificial intelligence has altered the practise of science by enabling researchers to examine the vast volumes of data generated by current scientific instruments. Using deep learning, it can learn from the data itself and can locate a needle in a million haystacks of information. AI is advancing the development of gene searching, medicine, medication design, and chemical compound synthesis.

Scientists Detect Fastest-Growing Black Hole in the Universe

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Jun 19, 2022

Albumin: What’s Optimal For Youth And Health? (2022 Update)

Posted by in categories: biotech/medical, chemistry, life extension, sex

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Jun 17, 2022

Liquid metal boosts platinum catalyst’s activity 1000 times

Posted by in categories: chemistry, lifeboat, particle physics

Adam FordAdmin.

I disagree with Ross Dawson here… it’s not ultimately a matter of belief or faith, it’s a matter of understanding our existing knowledge about the physiology of sentience, and of furthering the relevant research agendas. Questions of sentience in h… See more.

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Jun 16, 2022

Quantum nature of hydrogen bonds observed in acid–base complex

Posted by in categories: chemistry, education, quantum physics

Researchers in the US have demonstrated the presence of quantum mechanical effects in acid–base interactions, challenging the Brønsted–Lowry theory. The resultant short hydrogen bond is stabilised by a delocalised proton, which rapidly shuttles between the acid and base molecules and is characterised by highly unusual spectral features.

The Brønsted–Lowry theory was proposed in 1923 and explains acid–base interactions in terms of proton transfer. This theory is one of the cornerstones of chemical understanding and is amongst the first principles taught to school students. But despite a growing appreciation for the limitations of traditional thinking, the surprising discovery of a quantum component to such fundamental reactivity was entirely serendipitous.

‘It was luck,’ admits Daniel Kuroda of Louisiana State University, one of the principal researchers involved in the study. ‘We were looking at the structure of liquids … and saw this paper [about an acid–base mixture] with close to the conductivity of sulfuric acid but no ionisation. We wanted to see what the structure was … so we started looking into the project and then realised that clearly we have something very different.’

Jun 16, 2022

DNA evolves at different rates, depending on chromosome structure

Posted by in categories: biotech/medical, chemistry, evolution, genetics

The structure of how DNA is stored in archaea makes a significant difference to how quickly it evolves, according to a new study by Indiana University researchers.

The study, led by molecular biologist Stephen Bell, Distinguished Professor and chair of the College of Arts and Sciences’ Department of Molecular and Cellular Biochemistry at Indiana University (IU) Bloomington, was recently published in Nature Microbiology. Its findings have the potential to impact research on the treatment of genetic diseases such as cancer.

“The most exciting thing we revealed is the idea that the shape of a DNA molecule can affect its ability to change,” Bell said. “In the early 20th century, modernist architecture had the idea that the form of a building should follow its function. But what we’re seeing in these organisms is that over time, form is actually affecting . How DNA is structured can change it, creating an evolutionary feedback loop.”

Jun 15, 2022

The Pathology of Experimental Aerosolized Monkeypox Virus Infection in Cynomolgus Monkeys (Macaca fascicularis)

Posted by in categories: biotech/medical, chemistry

All monkeys appeared clinically normal on Day 0 of the study. Monkeys began to show evidence of exanthema, enanthema, mild anorexia, fever, cough, and nasal discharge on Days 6 and 7 postexposure. Dyspnea, noted as early as Day 8 postexposure, was evident in all animals by Day 10. By Days 9 and 10, all animals had exanthema and enanthema, were depressed and severely anorectic, and showed signs of weakness. Clinical signs progressed until the animals died naturally or were killed 9 to 17 days postexposure (mean 11.7 days). There was no correlation of inhaled dose to survival time. Leukocytosis (absolute and relative monocytosis) developed with the onset of clinical signs on Day 6. There were no trends detected in clinical chemistry data. Virus was first isolated from buffy coat cells of one of eight animals tested on Day 6. Nine of 11 animals were positive on Day 9, and 2 of 7 remained positive on Days 12 or 13. There was no cell-free viremia detected at any time.

Principal gross necropsy findings are presented in Table 1. All deaths were attributed to bronchopneumonia, although secondary bacterial septicemia was considered to be a contributing factor in one animal. Lungs were heavy and congested and failed to collapse. A dark red, lobular, mottled pattern of edema, atelectasis, and necrosis was distributed throughout all lung lobes (Fig. 1A). Occasionally, there was fibrinous pleuritis with pleural adhesions and multifocal, white, plaque-like thickenings of the visceral pleura. We observed a clear pericardial effusion in two monkeys.

Dermatitis, present in all monkeys, varied from barely detectable, single, small papules to extensive involvement primarily affecting the inguinal, ventral abdominal, ventral thoracic, perineal, and facial regions (Fig. 1, B and C). Palmar surfaces of the hands and plantar surfaces of the feet were only occasionally involved. The extent of involvement and the stage of skin lesion development noted at necropsy exhibited a positive correlation with the number of days elapsed since initial onset of the lesions was noted clinically. In animals necropsied 1 to 2 days after onset of exanthema, lesions were generally minimal in extent and were in the papular stage, appearing as pale tan to white, slightly raised foci, 2 to 4 mm in diameter. At 3 to 5 days post onset, lesion distribution was characterized as mild. Papules were accompanied by 1 to 2 mm vesicles. Vesicle formation, however, was not prominent grossly.

Jun 15, 2022

A weird star produced the fastest nova on record

Posted by in categories: chemistry, energy, space

Astronomers are buzzing after observing the fastest nova ever recorded. The unusual event drew scientists’ attention to an even more unusual star. As they study it, they may find answers to not only the nova’s many baffling traits, but to larger questions about the chemistry of our solar system, the death of stars and the evolution of the universe.

The research team, led by Arizona State University Regents Professor Sumner Starrfield, Professor Charles Woodward from University of Minnesota and Research Scientist Mark Wagner from The Ohio State University, co-authored a report published today in the Research Notes of the American Astronomical Society.

A is a sudden explosion of bright light from a two-star system. Every nova is created by a white dwarf—the very dense leftover core of a star—and a nearby companion star. Over time, the white dwarf draws matter from its companion, which falls onto the white dwarf. The white dwarf heats this material, causing an uncontrolled reaction that releases a burst of energy. The explosion shoots the matter away at high speeds, which we observe as .

Jun 15, 2022

This Collaboration Will Use Quantum Computing To Make Manufacturing More Sustainable

Posted by in categories: chemistry, computing, quantum physics, sustainability

German industrial manufacturer Covestro aims to develop software with QC Ware that would use quantum computing to create more efficient chemical reactions and better materials.

Jun 14, 2022

UV light may be ripe to replace chemicals in fungus fight

Posted by in categories: biotech/medical, chemistry

Circa 2019


Thanks to research led by Cornell AgriTech’s David Gadoury, farmers may no longer have to rely on fungicides to control powdery mildew, a rampant plant fungal disease.