Methane Emissions from Cattle: How Diet Can Help Reduce Climate Change

Category Engineering

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In order to tackle climate change, countries have pledged to reduce carbon emissions to net zero. While it's mainly focused on CO2, methane is a more potent greenhouse gas than carbon dioxide. Animal farming is responsible for most major sources of methane, mostly generated from a cow's stomach and belching. Feeding cattle with high-starch diets or certain combinations of food have been found to be helpful in reducing methane emissions.

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The Effect of Supermassive Black Holes on Host Galaxy Chemical Composition

Category Astronomy

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Recent research has demonstrated that the supermassive black hole at the centre of a galaxy has a significant influence on its host galaxy's chemical composition, and an international team of researchers led by Toshiki Saito at the National Astronomical Observatory of Japan and Taku Nakajima at Nagoya University have mapped the distribution of 23 molecules around an active black hole using ALMA.

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UAW Autoworkers Strike and Tentative Deal With Automakers

Category Business

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According to several media reports, Ford's tentative labor agreement includes a 25% wage increase over the next 4½ years, as well as a cost-of-living allowance restoration. The tentative agreement also includes more rights for temps and much higher contributions to retirement plans. If ratified, Ford's deal would add $6 billion in labor costs. GM and Stellantis could also face extra financial pressure despite having smaller North America workforces.

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14-Year-Old Develops Cancer-Fighting Soap

Category Engineering

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14-year-old student Heman Bekele created a soap called Melanoma Treating Soap (MTS) to treat skin cancer with cancer-fighting chemicals. He was motivated to create an affordable and accessible solution for skin cancer treatment globally, as he witnessed the high costs of skin cancer treatment globally. He won the top prize in the 3M Young Scientist’s Challenge this year, and hopes to use the prize money to continue his research within the field of STEM.

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Dozens of States Sue Meta: Exploring the National Debate on Child Safety Online

Category Technology

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On October 24, dozens of states sued Meta for allegedly misleading young users, harvesting their data, and violating federal laws on children’s privacy and consumer protection. This controversial case also serves as a stress-test of existing privacy law and will have a sweeping impact on the national debate about child safety online. To better understand this case, I called up a reporter and cultural critic by the name of Jessica DeFino to discuss topics such as psychological health and Instagram Face (a term coined to describe the way that Instagram filters have inspired real-world procedures and surgeries).

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Optimizing Nonprofit Spending Strategies for the Long Term

Category Business

tldr

We developed a mathematical model to guide nonprofits on how to divvy up their spending to optimize both current performance and future resilience through their spending priorities. Administrative costs should be balanced with program costs and fundraising, and nonprofits should consider their current capacity and future needs for maximum effectiveness.

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AI and the Ethics of Data Colonialism

Category Artificial Intelligence

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AI researcher and activist Joy Buolamwini has spent much of her research career standing at the forefront of exposing bias in AI systems. Now, she's calling for a radical rethink on how AI systems are built and encourages AI developers to ask essential questions about the products and its implications before they are brought to market.

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NASA Awards Intuitive Machines for Exploration Missions to Moon's South Pole

Category Space

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NASA has awarded Intuitive Machines of Houston a contract to perform science and exploration missions on the moon's south pole with two separate landers. The Nova-C IM-1 mission will place a lander on the crater rim of Malapert A and carry five NASA payloads. Meanwhile, the PRIME-1 mission will land two instruments on the moon for the first ever in-situ resource utilization demonstration. Both missions are currently scheduled for launch in November 2023.

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Quantum Observables Cannot be Separated from their Interactions With Respected Environment: An Analysis

Category Physics

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Hiroshima University physicists recently published a study in Physical Review Research which suggest that the physical reality of an object and multiple possible realities cannot be reconciled with the same physical reality. The study demonstrated how quantum superpositions in the dynamics of a measurement interaction shape the observable reality of a system.

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The Incredible Density Of Asteroid-33 Polyhymnia

Category Space

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The density of 33 Polyhymnia in the main asteroid belt between Mars and Jupiter was measured in 2012; the 2023 study found that it could be explained by either standard nuclei or alpha matter. It has density in the range of 65 to 85 grams per cubic centimeter and has a mass of about 750 trillion tons.

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The Fascinating Science Behind Touch Perception

Category Science

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Researchers from Imperial College London discovered that cells in hair follicles may sense touch and release neurotransmitters serotonin and histamine, which might explain the mechanism behind chronic skin conditions like eczema. They are now working on developing imaging techniques to monitor the release of serotonin and histamine in real time.

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Smart Speakers and the Cost of Privacy

Category Technology

tldr

Research from Washington University in St. Louis uncovered that Amazon uses smart speaker interaction data to infer user interests and then uses those interests to target personalized ads to the user, which they weren't upfront about prior to the research. This has led to Amazon updating the Alexa Privacy Hub and Alexa Device FAQs to clearly disclose that Alexa Echo interaction data is used for ad targeting. The research team's work and findings has also been of interest to various consumer protection government agencies.

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Clean Your Home After Wildfire Exposure to Reduce Risks From Potential Harmful Gases

Category Nature

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Wildfire smoke is filled with hazardous particles and gases that persist in buildings for weeks. Air purifiers, ventilation and masks can reduce the amount of VOCs entering the home, but the most effective way to reduce risk is to clean with plain soap and water, even if the surfaces don't look dirty.

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The Legal Implications of AI-Run Companies

Category Artificial Intelligence

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Legal experts in AI now suggest adapting laws to accommodate AI-run companies. This could potentially enable AI to reach managerial and C-suite roles, but would require training the algorithms to be law-abiding. Laws may already exist to include AI in legal systems, and there are research efforts to further the development. Banning AI-controlled companies may stifle innovation and adapting to the prospect is the best approach.

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Chinese Scientists Use Gene Therapy for Dramatic Restoration of a Lost Sense

Category Health

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Chinese scientists have used gene therapy to restore deaf children's hearing ability in a groundbreaking study. The therapy applies only to children with a specific genetic defect, and has proven effective in 4 out of 5 children already treated. It marks the first domestic gene therapy breakthrough in China, and one of the most impressive restorations of a lost sense to date.

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Exploring the Impact of Supernovae on the Formation of Galaxies with INFUSE Mission

Category Science

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NASA is launching a mission called the Integral Field Ultraviolet Spectroscopic Experiment (INFUSE) from the White Sands Missile Range in New Mexico on Oct. 29, 2023, to study up close a stellar phenomenon called the Cygnus Loop, a relic of a star that imploded 20,000 years ago when it burst into a supernova. INFUSE will observe how the supernova dumps energy into the Milky Way, and will measure the locations of the elements and identify their temperatures. The mission is an integral part in understanding how material from supernovas becomes part of planets and creatures like us.

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The Grand Discovery of Quantum Dots: An Overview

Category Technology

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Discovering quantum dots in 1980s was an accident, as it was observed that the colors of the semiconductor particles changed when lasers were pointed at them. Quantum dots are smaller than wavelength of light and are now being used in LED lighting, medical diagnostics and displays.

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Study Reveals the Brain Areas Responsible for Economic Decisions Under Risk in Rats

Category Neuroscience

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Neuroscientists have uncovered a key brain area in rats that encodes the value of economic choices when faced with the uncertainty of a lottery.The research team used pharmacological and optogenetic silencing to confirm the results. The findings provide a foundation for understanding the neurobiology of risky decisions, and could be beneficial in understanding and treating disorders where decision-making is impaired.

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NASA's Asteroid Sample: How Much Is It Worth?

Category Technology

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NASA's OSIRIS-Rex spacecraft has recently returned a sample from Bennu, an asteroid. The cost of sample return if expensive and can range from $4.7 million per gram for Bennu sample to $690 million per ounce for the Mars sample. Some space rocks are free to buy, such as chondrite meteorites that can be bought online for as little as $15 per ounce or iron meteorites for $50 per ounce. Pallasites are stony-iron meteorites that are more expensive and cost hundreds of dollars per gram.

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