-
作者：Samim, Saini; Dalton, Hayden; Phillips, David; Hergt, Janet
作者单位：University of Melbourne
摘要：The Turkana Basin is a renowned paleoanthropological region in Kenya and Ethiopia and is famous for discoveries of numerous hominin fossils and their associated cultural technologies. The Plio-Pleistocene sedimentary sequences hosting these important remains are interbedded with volcanic ash (tuff) beds that provide crucial bracketing age constraints. The Nariokotome Tuff Complex, comprising the Upper, Middle, and Lower Nariokotome Tuffs, preserves deposits that cover an important time interva...
-
作者：Madangopal, Rajtarun; Zhao, Yuan; Heins, Conor; Zhou, Jingfeng; Liang, Bo; Barbera, Giovanni; Lam, Ka Chun; Komer, Lauren E.; Webera, Sophia J.; Thompson, Drake J.; Gera, Yugantar; Pham, Diana Q.; Savell, Katherine E.; Warren, Brandon L.; Caprioli, Daniele; Venniro, Marco; Bossert, Jennifer M.; Ramsey, Leslie A.; Jedema, Hank P.; Schoenbaum, Geoffrey; Lin, Da-Ting; Shaham, Yavin; Pereira, Francisco; Hope, Bruce T.
作者单位：National Institutes of Health (NIH) - USA; NIH National Institute on Drug Abuse (NIDA); National Institutes of Health (NIH) - USA; NIH National Institute of Mental Health (NIMH); National Institutes of Health (NIH) - USA; NIH National Institute on Drug Abuse (NIDA); Sapienza University Rome; IRCCS Santa Lucia; IRCCS Santa Lucia; University System of Maryland; University of Maryland Baltimore
摘要：Learning when to initiate or withhold actions is essential for survival, requiring the inte-gration of past experiences with new information to adapt to changing environments. The prelimbic cortex (PL) plays a central role in this process, with a stable PL neuronal population (ensemble) recruited during operant reward learning to encode response execution. However, it is unknown how this established reward-learning ensemble adapts to changing reward contingencies, such as reward omission durin...
-
作者：Willink, Beatriz; Ho, Tammy Ai Tian; Svensson, Erik I.
作者单位：Cornell University; Aarhus University; Lund University
摘要：Sexual conflict over mating has been documented in many species, both in the field and in experimental studies. In pond damselflies (family Coenagrionidae), sexual conflict maintains female-limited color polymorphisms, with one female morph typically being a male mimic. However, it is not known whether sexual conflict can also explain the evolutionary origin of novel female morphs, and if so, what ecological factors play a role in this macroevolutionary transition, by modulating the strength o...
-
作者：Yang, Rui; Si, Qiaoling; Sheng, Qiang; Yang, Mingyang; Du, Mu; Zhang, Hu; Shi, Xiao-Lei; Tang, Guihua; Chen, Zhi-Gang
作者单位：Xi'an Jiaotong University; Shandong University; Xi'an Jiaotong University; Queensland University of Technology (QUT); Queensland University of Technology (QUT)
摘要：Nanoporous structures play a critical role in a wide range of applications, including catalysis, thermoelectrics, energy storage, gas adsorption, and thermal insulation. However, their thermal instability remains a persistent challenge. Inspired by the extraordinary resilience of tardigrades, an atomic armor strategy is introduced to enhance the stability of nanoporous structures. Applied to mesoporous silica at parts-per-million levels, the atomic armor provides thermal resistance exceeding t...
-
作者：Kinoshita, Miki; Miyata, Tomoko; Makino, Fumiaki; Imada, Katsumi; Namba, Keiichi; Minamino, Tohru
作者单位：University of Osaka; University of Osaka; Jeol Ltd; University of Osaka
摘要：The FliPQR complex constitutes a channel for export of the flagellar proteins involved in axial structure assembly. It also serves as a template for the assembly of the rod structure, which consists of FliE, FlgB, FlgC, FlgF, and FlgG. FliP, FliQ, and FliR assemble into a right-handed helical structure within the central pore of the flagellar basal body MS-ring, and the complex has two gates on the cytoplasmic and periplasmic sides. The periplasmic gate, formed by the N-terminal alpha- helices...
-
作者：Moore, Charlotte; Donhauser, Peter W.; Klein, Denise; Byers-Heinlein, Krista
作者单位：Concordia University - Canada; McGill University; Max Planck Society
摘要：The remarkable human capacity for bilingual and multilingual acquisition raises fundamental questions about how the brain develops efficient systems for processing multiple languages. In this study, we used neural network models trained on natural speech input to examine how these efficient representations emerge. Our models show that multiple phonological systems can be organized through parallel representations, preserving the unique aspects of each language while maintaining shared articula...
-
作者：Rege, Nischay K.; Liu, Ming; Yang, Yanwu; Dhayalan, Balamurugan; Wickramasinghe, Nalinda P.; Chen, Yen-Shan; Rahimi, Leili; Guo, Huan; Haataja, Leena; Sun, Jinhong; Ismail-Beigi, Faramarz; Phillips, Nelson B.; Arvan, Peter; Weiss, Michael A.
-
作者：Yin, Shenglai; Zhang, Chenchen; Teitelbaum, Claire S.; Si, Yali; Zhang, Geli; Wang, Xinxin; Mao, Dehua; Huang, Zheng Y. X.; de Boer, Willem Frederik; Takekawa, John; Prosser, Diann J.; Xiao, Xiangming
作者单位：University of Oklahoma System; University of Oklahoma - Norman; United States Department of the Interior; United States Geological Survey; University System of Georgia; University of Georgia; United States Department of the Interior; United States Geological Survey; Leiden University - Excl LUMC; Leiden University; China Agricultural University; Fudan University; Chinese Academy of Sciences; Northeast Institute of Geography & Agroecology, CAS; Nanjing Forestry University; Wageningen University & Research
摘要：Highly pathogenic avian influenza viruses (HPAIV) persistently threaten wild waterfowl, domestic poultry, and public health. The East Asian-Australasian Flyway plays a crucial role in HPAIV dynamics due to its large populations of migratory waterfowl and poultry. Over recent decades, this flyway has undergone substantial landscape changes, including both losses and gains of waterfowl habitats. These changes can affect waterfowl distributions, increase contact with poultry, and consequently alt...
-
作者：Savage, Van M.
作者单位：University of California System; University of California Los Angeles; University of California System; University of California Los Angeles; University of California Los Angeles Medical Center; David Geffen School of Medicine at UCLA; The Santa Fe Institute
-
作者：Gross, Karin; Yazdi, Homa Papoli; Schlager, Elisabeth; Lilley, Jodie; Romero-Bravo, Andres; Runemark, Anna; Thompson, John N.; Friberg, Magne
作者单位：Uppsala University; Lund University; Salzburg University; University of Manchester; University of Sussex; University of California System; University of California Santa Cruz
摘要：Polyploidization is an important driver of evolution and diversification in flowering plants. Here, we assess how repeated polyploidization may have shaped diversification of floral morphology in Lithophragma bolanderi (Saxifragaceae). This species comprises multiple cytotypes and varies geographically in its interactions with specialized pollinating moths in the genus Greya (Prodoxidae). Past studies have shown that coevolution with these moths has favored particular suites of floral characte...
