Motor vehicle traffic moves along the Interstate 76 highway in Philadelphia, March 31, 2021. The EPA on Friday, March 29, 2024, set new greenhouse gas emissions standards for heavy-duty trucks, buses and other large vehicles, an action that officials said will clean up some of the nation’s largest sources of planet-warming pollution. Credit: AP Photo/Matt … Read more
(a) The ZK δ18O record, thin line indicates the raw data, thick line indicates 30-year means, and black line indicates the long-term trend. The numbers 1 to 4 indicate the four cooling events during the 7-9 thousands years ago. (b) The δ18O record after applying a 200-600 year band-pass filter to show the centennial-scale variability. … Read more
Methylmalonate semialdehyde dehydrogenase ALDH6A1 takes part in the vital catabolic process in mitochondrion. Credit: Science China Press ALDH6A1, a member of the ALDH family, plays a crucial role in the catabolic pathways of valine and thymine. Dysregulation of ALDH6A1 expression has been linked to a variety of diseases. Methylmalonate semialdehyde dehydrogenase deficiency (MMSDH deficiency), an … Read more
Photographic image of the multimode microscope. Credit: Advanced Devices & Instrumentation Versatility and miniaturization of imaging systems are of great importance in today’s information society. Microscopic imaging techniques have always been indispensable for scientific research and disease diagnosis in the biomedical field, which is also stepping towards the integration, portable, and multi-functions. The optical microscope … Read more
Cell-to-cell junctions were visualized by ZO1-GFP, and the dynamics of cell junctions were captured by movies. When the cells indicated by * were spontaneously stretched, a continuous belt of cell junctions was maintained in normal cells, while cell junctions fractured and fragmented in cells lacking claudin and JAM-A (00:24 ~ 02:48, h: min). Credit: Tetsuhisa … Read more
Tourists visit the ancient Acropolis hill during a heat wave in Athens, Greece, on July 21, 2023. Climate change is making heat waves crawl slower across the globe and last longer with higher temperatures over larger areas, a new study finds. Credit: AP Photo/Petros Giannakouris, File Climate change is making giant heat waves crawl slower … Read more
by Charles-Francois de Lannoy, Bassel A. Abdelkader and Jocelyn Riet, The Conversation Credit: CC0 Public Domain In the effort to combat the catastrophic impacts of global warming, we must accelerate carbon emissions reduction efforts and rapidly scale strategies to remove carbon dioxide (CO2) from the atmosphere and the oceans. The technologies for reducing our carbon … Read more
Kenya has a nationawide tree-planting public holiday every November 13. Planting trees in the wrong places can actually contribute to global warming, scientists said on Tuesday, but a new map identifies the best locations to regrow forests and cool the planet. Trees soak up carbon dioxide and restoring areas of degraded woodlands or planting saplings … Read more
Simultaneous X-ray and multi-band radio light curves of 4U1728. Credit: Nature (2024). DOI: 10.1038/s41586-024-07133-5 How fast can a neutron star drive powerful jets into space? The answer, it turns out, is about one-third the speed of light, as our team has just revealed in a new study published in Nature. Energetic cosmic beams known as … Read more
Scott Lafontaine, left, flavor chemist and assistant professor in the U of A Food Science Department, stands with food science graduate student Bernardo P. Guimaraes in the U of A Beverage Development Facility with beers made from malted rice as part of a year-long study with the Arkansas Agricultural Experiment Station. Credit: U of A … Read more
