Photon Bose–Einstein condensation is observed in a semiconductor laser, where thermalization and condensation of photons occur using an InGaAs quantum well and an open microcavity. The distinction between regimes of photon Bose–Einstein condensation and conventional lasing are clearly identified.
Anyone who’s tried to neatly gather a fitted sheet can tell you: folding is hard. Get it wrong with your laundry and the result can be a crumpled, wrinkled mess of fabric, but when folding fails among the approximately 7,000 proteins with an origami-like complexity that regulate essential cellular functions, the result can lead to one of a multitude of serious diseases ranging from emphysema and cystic fibrosis to Alzheimer’s disease.
A very dangerous position to be in the world community of scientist should gather in agreement those friendly to the values and principles of democracy to advance science for the good humanity and freedom.
The U.S. sorely needs a coordinated national research strategy, says Marcia McNutt, president of the U.S. National Academy of Sciences.
In a first-ever “State of the Science” address at the end of June, National Academy of Sciences president Marcia McNutt warned that the U.S. was ceding its global scientific leadership to other countries—highlighting China in particular. McNutt, a widely respected geophysicist, said this slippage could make it harder for the U.S. to maintain the strength of its economy and protect its national security. She also laid out a provisional plan of action to reverse the decline.
For decades, scientists have focused on how the brain processes information in a hierarchical manner, with different brain areas specialized for different tasks. However, how these areas communicate and integrate information to form a coherent whole has remained a mystery.
Now, researchers at University of California San Diego School of Medicine have brought us closer to solving it by observing how neurons synchronize across the human brain while reading. The findings are published in Nature Human Behavior and are also the basis of a thesis by UC San Diego School of Medicine doctoral candidate Jacob Garrett.
“How the activity of the brain relates to the subjective experience of consciousness is one of the fundamental unanswered questions in modern neuroscience,” said study senior author Eric Halgren, Ph.D., professor in the Departments of Neurosciences and Radiology at UC San Diego School of Medicine.
What can earthquake rupture zones teach us about earthquakes and how to predict them? This is what a five-year, $2.3 million grant awarded by the National Science Foundation’s (NSF) Frontier Research in Earth Sciences grant hopes to address as an international team of researchers have been tasked with analyzing samples obtained from the earthquake rupture zone at the Turkey-Syria border responsible for the devastating back-to-back earthquakes on February 6, 2023, that killed more than 50,000 people and registered 7.8-magnitude and 7.6-magnitude, respectively. This study holds the potential to help researchers better understand the geologic processes responsible for large-scale earthquakes and the steps we can take to mitigate damage and loss of life.
“This NSF-funded project will help us overcome limitations of previous, generalized characterizations of earthquake critical zones with more in-depth geologic data, seismic imaging studies, deformation experiments and modeling,” said Dr. Alexis Ault, who is an Associate Professor in the Department of Geosciences at Utah State University (USU), and the lead principal investigator on the project. “Combining expertise from varied engineering and geoscience disciplines, we aim to emerge with a more complete and accurate picture of earthquake critical zones in these settings.”
For the study, the researchers collected geologic samples from the Çardak-Yesilyurt Fault system that was responsible for the devastating 2023 quakes to better understand how pressure builds within the earthquake critical zone, or the region of the Earth’s crust that’s just beneath the surface. Additionally, they will compare these findings to samples obtained from the southern San Andreas fault in California from another grant to help build their data cache, as well. This research builds off a 2023 NSF-funded research trip to the region approximately six months after the devastating quakes occurred.
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Scientists at Stanford University have developed a method for 3D-printing human heart tissue that could eventually be implanted into patients.
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Pediatric Research volume 83, pages 223–231 (2018) Cite this article.
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The team created a cell-containing “bioink” and used it to 3D print the organ layer by layer.
In 2017, we brought you news of a world map purportedly more accurate than any to date, designed by Japanese architect and artist Hajime Narukawa. The map, called the AuthaGraph, updates a centuries-old method of turning the globe into a flat surface by first converting it to a cylinder. Winner of Japan’s Good Design Grand Award, it serves as both a brilliant design solution and an update to our outmoded conceptions of world geography.
But as some readers have pointed out, the AuthaGraph also seems to draw quite heavily on an earlier map made by one of the most visionary of theorists and designers, Buckminster Fuller, who in 1943 applied his Dymaxion trademark to the map you see above, which will likely remind you of his most recognizable invention, the Geodesic Dome, “house of the future.”
Whether Narukawa has acknowledged Fuller as an inspiration I cannot say. In any case, 73 years before the AuthaGraph, the Dymaxion Map achieved a similar feat, with similar motivations. As the Buckminster Fuller Institute (BFI) points out, “The Fuller Projection Map is [or was] the only flat map of the entire surface of the Earth which reveals our planet as one island in the ocean, without any visually obvious distortion of the relative shapes and sizes of the land areas, and without splitting any continents.”
A recent study reveals new insights into aurorae across Earth, Jupiter, and Saturn, highlighting the role of magnetic fields and solar winds in shaping these phenomena, with significant implications for space weather forecasting and planetary exploration.
The breathtaking aurorae, commonly known as the Northern and Southern Lights, have captivated human imagination for centuries. From May 10th to 12th, 2024, the most powerful aurora event in 21 years showcased the extraordinary beauty of these celestial light displays.
Recently, space physicists from the Department of Earth Sciences at The University of Hong Kong (HKU), including Professor Binzheng Zhang, Professor Zhonghua Yao, and Dr Junjie Chen, along with their international collaborators, have published a paper in Nature Astronomy that explores the fundamental laws governing the diverse aurorae observed across planets, such as Earth, Jupiter and Saturn. This work provides new insights into the interactions between planetary magnetic fields and solar wind, updating the textbook picture of giant planetary magnetospheres. Their findings can improve space weather forecasting, guide future planetary exploration, and inspire further comparative studies of magnetospheric environments.
