-
作者:Goessling, Helge F.; Rackow, Thomas; Jung, Thomas
作者单位:Helmholtz Association; Alfred Wegener Institute, Helmholtz Centre for Polar & Marine Research; University of Bremen
摘要:In 2023, the global mean temperature soared to almost 1.5 kelvin above the preindustrial level, surpassing the previous record by about 0.17 kelvin. Previous best-guess estimates of known drivers, including anthropogenic warming and the El Nino onset, fall short by about 0.2 kelvin in explaining the temperature rise. Using satellite and reanalysis data, we identified a record-low planetary albedo as the primary factor bridging this gap. The decline is apparently caused largely by a reduced low...
-
作者:Khan, Asir Intisar; Ramdas, Akash; Lindgren, Emily; Kim, Hyun-Mi; Won, Byoungjun; Wu, Xiangjin; Saraswat, Krishna; Chen, Ching-Tzu; Suzuki, Yuri; da Jornada, Felipe H.; Oh, Il-Kwon; Pop, Eric
作者单位:Stanford University; Stanford University; Stanford University; Ajou University; International Business Machines (IBM); IBM USA; Stanford University; United States Department of Energy (DOE); Stanford University; SLAC National Accelerator Laboratory; Stanford University
摘要:The electrical resistivity of conventional metals such as copper is known to increase in thin films as a result of electron-surface scattering, thus limiting the performance of metals in nanoscale electronics. Here, we find an unusual reduction of resistivity with decreasing film thickness in niobium phosphide (NbP) semimetal deposited at relatively low temperatures of 400 degrees C. In films thinner than 5 nanometers, the room temperature resistivity (similar to 34 microhm centimeters for 1.5...
-
作者:McLaren, Duncan; Corry, Olaf
作者单位:University of California System; University of California Los Angeles; University of Leeds
-
作者:Tamarit, Josep-Lluis; Lloveras, Pol
作者单位:Universitat Politecnica de Catalunya; Universitat Politecnica de Catalunya
摘要:A family of materials exhibits a large thermal response at subambient temperatures
-
作者:Wang, Weiwei; Wang, Xianli; Flannigan, Mike D.; Guindon, Luc; Swystun, Tom; Castellanos-Acuna, Dante; Wu, Wanli; Wang, Guangyu
作者单位:University of British Columbia; Natural Resources Canada; Canadian Forest Service; Thompson Rivers University; Natural Resources Canada; Canadian Forest Service; Natural Resources Canada; Canadian Forest Service; Great Lakes Forestry Centre; University of Alberta; Parks Canada
摘要:Canada has experienced more-intense and longer fire seasons with more-frequent uncontrollable wildfires over the past decades. However, the effect of these changes remains unknown. This study identifies driving forces of burn severity and estimates its spatiotemporal variations in Canadian forests. Our results show that fuel aridity was the most influential driver of burn severity, summer months were more prone to severe burning, and the northern areas were most influenced by the changing clim...
-
作者:Thorp, H. Holden; Vinson, Valda; Kmec, Lauren
-
作者:Charles, Dan
摘要:When farmers leave their land, what version of nature takes over?
-
作者:Yang, Xiaoyu; Rocks, Jason W.; Jiang, Kaiyi; Walters, Andrew J.; Rai, Kshitij; Liu, Jing; Nguyen, Jason; Olson, Scott D.; Mehta, Pankaj; Collins, James J.; Daringer, Nichole M.; Bashor, Caleb J.
作者单位:Rice University; Rice University; Rice University; Boston University; Rice University; University of Texas System; University of Texas Health Science Center Houston; Boston University; Boston University; Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); Harvard University; Massachusetts Institute of Technology (MIT); Broad Institute; Harvard University; Rowan University; Rice University; Massachusetts Institute of Technology (MIT)
摘要:Protein phosphorylation signaling networks have a central role in how cells sense and respond to their environment. We engineered artificial phosphorylation networks in which reversible enzymatic phosphorylation cycles were assembled from modular protein domain parts and wired together to create synthetic phosphorylation circuits in human cells. Our design scheme enabled model-guided tuning of circuit function and the ability to make diverse network connections; synthetic phosphorylation circu...
-
作者:Zipple, Matthew N.; Kuo, Daniel Chang; Meng, Xinmiao; Reichard, Tess M.; Guess, Kwynn; Vogt, Caleb C.; Moeller, Andrew H.; Sheehan, Michael J.
作者单位:Cornell University; Princeton University; University of California System; University of California Berkeley; Yale University
摘要:Contingency (or luck) in early life plays an important role in shaping individuals' development. By comparing the developmental trajectories of functionally genetically identical free-living mice who either experienced high levels of resource competition (males) or did not (females), we show that competition magnifies early contingency. Male resource competition results in a feedback loop that magnifies the importance of early contingency and pushes individuals onto divergent, self-reinforcing...
-
作者:Heidt, Amanda