6 documents found, page 1 of 1
A critical thermal transition driving spring phenology of Northern Hemisphere c...
Huang, Jian-Guo; Zhang, Yaling; Wang, Minhuang; Yu, Xiaohan; Deslauriers, Annie; Fonti, Patrick; Liang, Eryuan; Mäkinen, Harri; Oberhuber, WalterDespite growing interest in predicting plant phenological shifts, advanced spring phenology by global climate change remains debated. Evidence documenting either small or large advancement of spring phenology to rising temperature over the spatio-temporal scales implies a potential existence of a thermal threshold in the responses of forests to global warming. We collected a unique data set of xylem cell-wall-t...
A mechanism for red coloration in vertebrates
Toomey, Matthew B.; Marques, Cristiana I.; Araújo, Pedro M.; Huang, Delai; Zhong, Siqiong; Liu, Yu; Schreiner, Gretchen D.; Myers, Connie A.Red coloration is a salient feature of the natural world. Many vertebrates produce red color by converting dietary yellow carotenoids into red ketocarotenoids via an unknown mechanism. Here, we show that two enzymes, cytochrome P450 2J19 (CYP2J19) and 3-hydroxybutyrate dehydrogenase 1-like (BDH1L), are sufficient to catalyze this conversion. In birds, both enzymes are expressed at the sites of ketocarotenoid bi...
Off-line evaluation of indoor positioning systems in different scenarios: the e...
Potorti, Francesco; Torres-Sospedra, Joaquín; Quezada-Gaibor, Darwin; Jimenez, Antonio Ramon; Seco, Fernando; Perez-Navarro, Antoni; Ortiz, MiguelEvery year, for ten years now, the IPIN competition has aimed at evaluating real-world indoor localisation systems by testing them in a realistic environment, with realistic movement, using the EvAAL framework. The competition provided a unique overview of the state-of-the-art of systems, technologies, and methods for indoor positioning and navigation purposes. Through fair comparison of the performance achieve...
The contribution of insects to global forest deadwood decomposition
Seibold, Sebastian; Rammer, Werner; Hothorn, Torsten; Seidl, Rupert; Ulyshen, Michael D.; Lorz, Janina; Cadotte, Marc W.; Lindenmayer, David B.Made available in DSpace on 2022-04-28T19:44:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-09-02; The amount of carbon stored in deadwood is equivalent to about 8 per cent of the global forest carbon stocks1. The decomposition of deadwood is largely governed by climate2–5 with decomposer groups—such as microorganisms and insects—contributing to variations in the decomposition rates2,6,7. At the glob...
Evaluation of the CO2 Tolerant Cathode for Solid Oxide Fuel Cells: Praseodymium...
Yang, Tao; Su, Chao; Wang, Wei; Meng, Lijian; Deng, Jiguang; Liu, Yu; Rathore, Shambhu; Shao, ZongpingAn effective praseodymium oxysulfate/Ba0.5Sr0.5Co0.8Fe0.2O3-δ composite cathode with high stability in 10% CO2/air was investigated. The addition of 50 vol.% of the praseodymium oxysulfate shows much better tolerance to CO2, and reduced the polarization resistance of the cathode to 1/3 comparing with that of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF). The CO2–temperature programmed desorption (TPD) and the electrochemical...
A secreted BMP antagonist, Cer1, fine tunes the spatial organization of the ure...
Chi, Lijun; Saarela, Ulla; Railo, Antti; Prunskaite-Hyyrylainen, Renata; Skovorodkin, Ilya; Anthony, Shelagh; Katsu, Kenjiro; Liu, Yu; Shan, JingdongThe epithelial ureteric bud is critical for mammalian kidney development as it generates the ureter and the collecting duct system that induces nephrogenesis in dicrete locations in the kidney mesenchyme during its emergence. We show that a secreted Bmp antagonist Cerberus homologue (Cer1) fine tunes the organization of the ureteric tree during organogenesis in the mouse embryo. Both enhanced ureteric expressio...