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| 1 | The onset of deep recycling of supracrustal materials at the Paleo-Mesoarchean boundary显示文摘The recycling of supracrustal materials, and in particular hydrated rocks, has a profound impact on mantle composition and thus on the formation of continental crust, because water modifies the physical properties of lithological systems and the mechanisms of partial melting and fractional fractionation. On the modern Earth, plate tectonics offers an efficient mechanism for mass transport from the Earth’s surface to its interior, but how far this mechanism dates back in the Earth’s history is still uncertain. Here, we use zircon oxygen(O) isotopes to track recycling of supracrustal materials into the magma sources of early Archean igneous suites from the Kaapvaal Craton, southern Africa. The mean δ^(18)O values of zircon from TTG(tonalite–trondhjemite–granodiorite) rocks abruptly increase at the Paleo-Mesoarchean boundary(ca.3230 million years ago;Ma), from mantle zircon values of 5‰–6‰ to approaching 7.1‰, and this increase occurs in ≤3230 Ma rocks with elevated Dy/Yb ratios. The^(18)O enrichment is a unique signature of low-temperature water–rock interaction on the Earth’s surface. Because the later phase was emplaced into the same crustal level as the older one and TTG magmas would derive from melting processes in the garnet stability field(>40 km depth), we suggest that this evident shift in TTG zircon O isotopic compositions records the onset of recycling of the mafic oceanic crust that underwent seawater hydrothermal alteration at low temperature. The onset of the enhanced recycling of supracrustal materials may also have developed elsewhere in other Archean cratons and reflects a significant change in the tectonic realm during craton formation and stabilization, which may be important processes for the operation of plate tectonics on early Earth. | Xiaolei Wang Ming Tang Jeff Moyen Di Wang Alfred Kröner Chris Hawkesworth Xiaoping Xia Hangqiang Xie Carl Anhaeusser Axel Hofmann Junyong Li Linsen Li | 2022 | National Science Review2022,9,3: | 3 |
| 2 | EQUIVALENT THEOREMS ON SIMULTANEOUS APPROXIMATION BY COMBINATIONS OF BERNSTEIN OPERATORES显示文摘在这篇论文,我们由光滑ω _ 的 r-th Ditzian-Totik 模量为伯恩斯坦操作员的联合在同时的近似上给相等的定理(φ ~ λ)~ r (f, t )(0 ≤λ≤ 1 ) 。我们也调查在联合 ofBernstein 操作符的衍生物和函数的衍生物的光滑之间的关系。 | Li Cheng Linsen Xie | 2006 | Analysis in Theory and Applications2006,22,3: | 1 |
| 3 | RNA-seq analysis reveals the critical role of the novel lnc RNA BIANCR in intramuscular adipogenesis through the ERK1/2 signaling pathway显示文摘Background Long non-coding RNAs(lncRNAs)regulate numerous biological processes,including adipogenesis.Research on adipogenesis will assist in the treatment of human metabolic diseases and improve meat quality in livestock,such as the content of intramuscular fat(IMF).However,the significance of lncRNAs in intramuscular adipogenesis remains unclear.This research aimed to reveal the lncRNAs transcriptomic profiles in the process of bovine intramuscular adipogenesis and to identify the lncRNAs involved in the adipogenesis of bovine intramuscular adipocytes.Results In this research,a landscape of lncRNAs was identified with RNA-seq in bovine intramuscular adipocytes at four adipogenesis stages(0 d,3 d,6 d,and 9 d after differentiation).A total of 7035 lncRNAs were detected,including 3396 novel lncRNAs.Based on the results of differential analysis,co-expression analysis,and functional prediction,we focused on the bovine intramuscular adipogenesis-associated long non-coding RNA(BIANCR),a novel lncRNA that may have an important regulatory function.The knockdown of BIANCR inhibited proliferation and promoted apoptosis of intramuscular preadipocytes.Moreover,BIANCR knockdown inhibited intramuscular adipogenesis by regulating the ERK1/2 signaling pathway.Conclusion This study obtained the landscape of lncRNAs during adipogenesis in bovine intramuscular adipocytes.BIANCR plays a crucial role in adipogenesis through the ERK1/2 signaling pathway.The results are noteworthy for improving beef meat quality,molecular breeding,and metabolic disease research. | Xinhao Ma Xinran Yang Dianqi Zhang Wenzhen Zhang Xiaoyu Wang Kuncheng Xie Jie He Chugang Mei Linsen Zan | 2023 | Journal of Animal Science and Biotechnology2023,14,3: | 1 |
| 4 | POINTWISE CHARACTERIZATION FOR COMBINATIONS OF BASKAKOV OPERATORS显示文摘In this paper,we characterize the pointwise rate of convergence for the combinations of the Baskakov operators using the Ditzian-Totkik modulus of smoothness. | Xie Linsen and Zhang Xiaoping (Lishui Teaher’s College, China) | 2002 | Approximation Theory and Its Applications2002,18,2: | 1 |
| 5 | UNIFORM APPROXIMATION BY COMBINATIONS OF BERNSTEIN POLYNOMIALS显示文摘We prove a pointwise characterization result for combinations of Bernstein polynomials. The main result of this paper includes an equivalence theorem of H. Berens and G. G. Lorentz as a special case. | Xie Linsen (Lishui Teachers’ College, China) | 1995 | Analysis in Theory and Applications1995,11,3: | 0 |
| 6 | Two potentially specific but relevant patterns of proteomic change Response of SH-SY5Y cells to differentiation with retinoic acid followed by phorbol ester 12-O-tetradecanoyl-phorbol-13-acetate, and susceptibility of differentiated cells to dopamine显示文摘Dopamine (DA) exposure at a dose of 100 μmol/L for 24 hours causes oxidative stress in SH-SY5Y cells with induction of neuronal differentiation by retinoic acid (RA,10 μmol/L, 72 hours) followed by phorbol ester 12-O-tetradecanoyl-phorbol-13-acetate (TPA, 80 nmol/L, 72 hours). However, it remains unclear whether the alteration of phenotype observed in response to oxidative stress is associated with protein regulation in this cellular model for Parkinson's disease. The present study detected protein regulation affected by oxidative stress at a proteomic level: selection of differentially altered proteins using two dimensional difference in-gel electrophoresis and identification of these proteins using matrix assisted laser desorption/ionization time-of-flight mass spectrometry. The results demonstrated significant alterations in expression of six proteins in SH-SY5Y cells following the differentiation and fourteen proteins in the differentiated cells following the exposure, exemplified by an increase of tubulin alpha1 in the former but a decrease of tubulin alpha-ubiquitous chain in the latter. These results suggest that two potentially specific but relevant patterns of proteomic change may be produced in SH-SY5Y cells with the induction of differentiation by RA followed by TPA, and in the differentiated cells after DA exposure. | Mingxiu Tian Xing'an Li Ming Chang Yingjiu Zhang Danping Wang Hongrong Xie Linsen Hu | 2010 | Neural Regeneration Research2010,5,20: | 0 |
| 7 | Alpha-tubulin deacetylase as a potential and novel target for the prevention of Parkinson's disease progression显示文摘Parkinson's disease(PD)is the second most common neurodegenerative disorder and is characterized by its progressive course.The current therapies are aimed at alleviating symptoms by rescuing the unbalanced physiological dopamine metabolism and recovery of damaged neuronal circuits.However,these strategies result in insufficient clinical benefits for many patients and fail to halt disease progression.Therefore,new therapeutic targets could serve as the gateway against PD degeneration.One pathological hallmark of PD is the formation of intracytoplasmic protein inclusions or Lewy bodies,in neurons.Recent studies have suggested that Lewy bodies are formed similarly to aggresomes,and results have supported the concept that the novel cellular organelle,the aggresome,is a cytoprotective response that sequesters and facilitates clearance of potentially toxic protein aggregates.In addition,α-tubulin deacetylase has been shown to regulate aggresome formation and rescue neural cell viability in response to misfolded protein.Therefore,the regulation of aggresome formation to trigger cellular self-protection system could arrest PD progression.The present study discusses research progress related to Lewy bodies,aggresomes,and histone deacetylases,with an emphasis on histone deacetylase 6 and sirtuin type 2. | Guoyi Li Ming Chang Huiyi Jiang Hongrong Xie Xinyu Hu Linsen Hu | 2011 | Neural Regeneration Research2011,6,2: | 0 |
| 8 | Jackson-type and Bernstein-type inequalities for multipliers on Herz-type Hardy spaces显示文摘We establish Jackson-type and Bernstein-type inequalities for multipliers on Herz-type Hardy spaces. These inequalities can be applied to some important operators in Fourier analysis, such as the Bochner-Riesz multiplier over the critical index, the generalized Bochner-Riesz mean and the generalized Able-Poisson operator. | XIE LinSen LAN JiaCheng LAN SenHua YAN DunYan | 2009 | Science China Mathematics2009,52,3: | 0 |
| 9 | POINTWISE DIRECT ESTIMATE FOR COMBINATIONS OF SOME EXPONENTIAL-TYPE OPERATORS显示文摘The purpose of this paper is to give the pointwise direct estimate for the combinations of some exponential-type operators. | Xie Linsen(Department of Mathematics Lishui Teachers’ CollegeLishui, Zhejiang 323000PRC) | 2000 | Analysis in Theory and Applications2000,16,2: | 0 |
| 10 | SIMULTANEOUS APPROXIMATION BY BERNSTEIN-SIKKEMA OPERATORS显示文摘In this paper, we investigate the simultaneous approximation of Bernstein-Sikkema operators, and establish the direct and equivalent theorems by using the Ditzian-Totik modulus of smoothness. | Xuejiao Jiang Linsen Xie | 2008 | Analysis in Theory and Applications2008,24,3: | 0 |