20期

最新文章

• General reversal of N- decomposition relationship during long- term decomposition in boreal and temperate forests AI翻译
  作者：Sun, Tao; Dong, Lili; Zhang, Yunyu; Hattenschwiler, Stephan; Schlesinger, William H.; Zhu, Jiaojun; Berg, Bjorn; Adair, E. Carol; Fang, Yunting; Hobble, Sarah E.
  作者单位：Chinese Academy of Sciences; Shenyang Institute of Applied Ecology, CAS; Shenyang Agricultural University; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Universite PSL; Ecole Pratique des Hautes Etudes (EPHE); Institut Agro; Montpellier SupAgro; CIRAD; Centre National de la Recherche Scientifique (CNRS); Institut de Recherche pour le Developpement (IRD); Universite Paul-Valery; Universite de Montpellier; Duke University; University of Helsinki; University of Vermont; University of Minnesota System; University of Minnesota Twin Cities
  摘要：Decomposition of dead organic matter is fundamental to carbon (C) and nutrient cycling in terrestrial ecosystems, influencing C fluxes from the biosphere to the atmosphere. Theory predicts and evidence strongly supports that the availability of nitrogen (N) limits litter decomposition. Positive relationships between substrate N concentrations and decomposition have been embedded into ecosystem models. This decomposition paradigm, however, relies on data mostly from short - term studies analyzi...
• Eviction- driven infanticide and sexually selected adoption and infanticide in a neotropical parrot AI翻译
  作者：Beissinger, Steven R.; Berg, Karl S.
  作者单位：University of California System; University of California Berkeley; University of California System; University of California Berkeley; University of Texas System; University of Texas Rio Grande Valley
  摘要：Infanticide and adoption have been attributed to sexual selection, where an individual later reproduces with the parent whose offspring it killed or adopted. While sexually selected infanticide is well known, evidence for sexually selected adoption is anecdotal. We report on both behaviors at 346 nests over 27 y in green - rumped parrotlets ( Forpus passerinus ) in Venezuela. Parrotlets are monogamous with long - term pair bonds, exhibit a strongly male - biased adult sex ratio, and nest in ca...
• Tumor-neutrophil cross talk orchestrates the tumor microenvironment to determine the bladder cancer progression AI翻译
  作者：Jing, Weiqiang; Wang, Ganyu; Cui, Zhiwei; Li, Xinyuan; Zeng, Shuyan; Jiang, Xin; Li, Wushan; Han, Bo; Xing, Nianzeng; Zhao, Yunxue; Chen, Shouzhen; Shi, Benkang
  作者单位：Shandong University; Shandong University; Shandong University; Shandong First Medical University & Shandong Academy of Medical Sciences; Shandong University; Shandong University; Shandong University; Chinese Academy of Medical Sciences - Peking Union Medical College; Peking Union Medical College; Cancer Institute & Hospital - CAMS; Chinese Academy of Medical Sciences - Peking Union Medical College; Peking Union Medical College; Cancer Institute & Hospital - CAMS
  摘要：The immune landscape of bladder cancer progression is not fully understood, and effective therapies are lacking in advanced bladder cancer. Here, we visualized that bladder cancer cells recruited neutrophils by secreting interleukin - 8 (IL - 8); in turn, neutrophils played dual functions in bladder cancer, including hepatocyte growth factor (HGF) release and CCL3 high PD - L1 high super - immunosuppressive subset formation. Mechanistically, c - Fos was identified as the mediator of HGF up - r...
• Residential mobility and persistently depressed voting among disadvantaged adults in a large housing experiment AI翻译
  作者：Knight, David Jonathan; Zhang, Baobao
  作者单位：Columbia University; Columbia University; Syracuse University
  摘要：This study examines the impact of residential mobility on electoral participation among the poor by matching data from Moving to Opportunity, a US - based multicity housing - mobility experiment, with nationwide individual voter data. Nearly all participants in the experiment were Black and Hispanic families who originally lived in high - poverty public housing developments. Notably, the study finds that receiving a housing voucher to move to a lowpoverty neighborhood decreased adult participa...
• Mechanics limits ecological diversity and promotes heterogeneity in confined bacterial communities AI翻译
  作者：Ma, Tianyi; Rothschild, Jeremy; Halabeya, Faisal; Zilman, Anton; Milstein, Joshua N.
  作者单位：University of Toronto; University of Toronto; University Toronto Mississauga
  摘要：Multispecies bacterial populations often inhabit confined and densely packed encommunity. However, the role of mechanical interactions in shaping the ecology is still poorly understood. Here, we study a model system consisting of two populations of nonmotile Escherichia coli bacteria competing within open, monolayer microchannels. The competitive dynamics is observed to be biphasic: After seeding, either one strain rapidly fixates or both strains orient into spatially stratified, stable commun...
• Unveiling the role of proton concentration in dinuclear metal complexes for boosting photocatalytic CO 2 reduction AI翻译
  作者：Wang, Hui- Feng; Wang, Hong - Juan; Zhong, Di - Chang; Lu, Tong - Bu
  作者单位：Tianjin University of Technology
  摘要：The reaction kinetics of photocatalytic CO 2 reduction is highly dependent on the transfer rate of electrons and protons to the CO 2 molecules adsorbed on catalytic centers. Studies on uncovering the proton effect in catalysts on photocatalytic activity of CO 2 reduction are significant but rarely reported. In this paper, we, from the molecular level, revealed that the photocatalytic activity of CO 2 reduction is closely related to the proton availability in catalysts. Specifically, four dinuc...
• Dynamics of membrane tubulation coupled with fission by a two- component module AI翻译
  作者：Bhattacharyya, Soumya; Pucadyil, Thomas J.
  作者单位：Indian Institute of Science Education & Research (IISER) Pune
  摘要：Membrane tubulation coupled with fission (MTCF) is a widespread phenomenon but mechanisms for their coordination remain unclear, partly because of the lack of assays to monitor dynamics of membrane tubulation and subsequent fission. Using polymer cushioned bilayer islands, we analyze the membrane tubulator Bridging Integrator 1 (BIN1) mixed with the fission catalyst dynamin2 (Dyn2). Our results reveal this mixture to constitute a minimal two - component module that demonstrates MTCF. MTCF is a...
• A PAK family kinase and the Hippo/Yorkie pathway modulate WNT signaling to functionally integrate body axes during regeneration AI翻译
  作者：Doddihal, Viraj; Mann Jr, Frederick G.; Ross, Eric J.; McKinney, Mary C.; Guerrero-Hernandeza, Carlos; Brewster, Carolyn E.; McKinney, Sean A.; Alvarado, Alejandro Sanchez
  作者单位：Stowers Institute for Medical Research
  摘要：Successful regeneration of missing tissues requires seamless integration of positional information along the body axes. Planarians, which regenerate from almost any injury, use conserved, developmentally important signaling pathways to pattern the body axes. However, the molecular mechanisms which facilitate cross talk between these signaling pathways to integrate positional information remain poorly understood. Here, we report a p21- activated kinase ( smed-pak1 ) which functionally integrate...
• Stopover strategies drive potential adaptability under changing environments AI翻译
  作者：Horton, Kyle G.; Deng, Yuting
  作者单位：Colorado State University System; Colorado State University Fort Collins
• THEMIS promotes T cell development and maintenance by rising the signaling threshold of the inhibitory receptor BTLA AI翻译
  作者：Melique, Suzanne; Vadel, Aurelie; Rouquie, Nelly; Yang, Cui; Bories, Cyrielle; Cotineau, Coline; Saoudi, Abdelhadi; Fazilleau, Nicolas; Lesourne, Renaud
  作者单位：Institut National de la Sante et de la Recherche Medicale (Inserm); Universite de Toulouse; Universite Toulouse III - Paul Sabatier
  摘要：The current paradigm about the function of T cell immune checkpoints is that these receptors switch on inhibitory signals upon cognate ligand interaction. We here revisit this simple switch model and provide evidence that the T cell lineage protein THEMIS enhances the signaling threshold at which the immune checkpoint BTLA (B - and T - lymphocyte attenuator) represses T cell responses. THEMIS is recruited to the cytoplasmic domain of BTLA and blocks its signaling capacity by promoting/ stabili...