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Aguas Zarcas meteorite with irregular surface features. This 146g stone is on loan to the Buseck Center for Meteorite Studies from Michael Farmer.

In the pinball world of asteroids, a mudball meteorite avoided collisions

Categories Space
A steady diet of high-fat foods leads to reduced pleasure in eating, likely contributing to obesity. UC Berkeley scientists have discovered why, opening up new possibilities for treating obesity — not by fighting desire, but by restoring desire in a healthier way.

Scientists discover why obesity takes away the pleasure of eating

Categories Brain & Behavior, Health
(A) Schematic sketch for illustrating the implementation of the memristive network–based RC system for rover control through processing time-sequential sensory signals. Here, voltage-based analog sensory signals carrying spatiotemporal information components are input to the memristive reservoir. These input signals are differentiated and nonlinearly mapped to a high-dimensional data space based on the temporal contexts of the input sensory signals and are quantitatively represented by the reservoir state vector X(t), which is constructed from the voltage readings at multiple neuron terminals. Afterward, the state vector is multiplied by a pretrained weight matrix W(t) to export the output signals Y(t) for controlling the testing rover. (B to D) Training data acquisition for emulating PID control of a robot rover for performing target-tracking navigation: (B) snapshot captured from the training video, showing the PID-controlled rover tracing after a red-moving target (the inset view is a snapshot from the ESP32-based internet-of-things (IoT) camera on the rover); (C) exemplary target coordinate data plotted as the function of time points; (D) exemplary motor signal data generated by a digital PID controller, plotted as the function of time points.

Brain-like computer steers rolling robot with 0.25% of the power needed by conventional controllers

Categories Brain & Behavior, Technology
This JWST image shows the Big Wheel galaxy (in the center) and its cosmic environment. The galaxy is a gigantic rotating disk lying 11.7 billion light-years away. Its spiral disk stretches across 100,000 light-years, making it larger than any other galaxy disk confirmed at this epoch of the universe. The blue blob and some of the other larger objects in the image are galaxies in the nearby universe. The smaller objects tend to be distant galaxies; however, the larger galaxy to the lower left of Big Wheel is part of the same remote galactic structure as Big Wheel. Credit: NASA/ESA

Astronomers Find Giant Dinosaur of a Galaxy

Categories Physics & Mathematics, Space
Aerial view of big factory in China.Air pollution by smoke coming out of chimneys. Coal Fossil Fuel Power Plant Smokestacks Emit Carbon Dioxide Pollution. Chengde, China. 10/22/2018

Top scientists issue urgent warning on fossil fuels

Categories Earth, Energy & Environment
Illustration on photoexcitation of electrons in a potential well

Einstein’s Photons Hidden in the Fabric of Maxwell’s Fields

Categories Physics & Mathematics
people running a marathon

Preventable cardiac deaths during marathons are down

Categories Health
illustration of woman awake in bed

One hour’s screen use after going to bed increases your risk of insomnia by 59%, scientists find

Categories Brain & Behavior, Technology
Illustration of a human heart

AI Reveals Heart’s Biological Age, Unlocking Cardiac Risk Prediction

Categories Health, Technology
WashU Medicine researcher Kanta Horie, PhD, places a sample in a mass spectrometer that measures protein levels in blood plasma and other fluids. Horie co-led the development of a blood test for Alzheimer’s disease that diagnoses and stages the disease by using mass spectrometry to measure the level of a protein called MTBR-tau243.

Highly accurate blood test diagnoses Alzheimer’s disease, measures extent of dementia

Categories Brain & Behavior, Health
Illiberal narratives from China and Russia are more persuasive than democratic ones, with broad susceptibility across Japanese society.

Do authoritarian narratives shape Japanese public opinion?

Categories Social Sciences
(A) Ventral view of the mandible and associated skull elements. (B) Mandible and skull elements labeled. (C) Left lateral view of the mandible. Abbreviations: an, angular; art, articular; d, dentary; j, jugal; R. mx, right maxilla; L. mx, left maxilla; p, palatine; R. pm, right premaxilla; sp, splenial; s.r., symphyseal ridge; sur, surangular.

New plesiosaur discovery sheds light on early Jurassic evolution and plausible endemism

Categories Life & Non-humans
salt flats

Spiralling weather and climate impacts documented in WMO report

Categories Bloggers
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