1,013 research outputs found
sj-pdf-1-jba-10.1177_08853282221076226 – Supplemental Material for Fabrication of porous gehlenite coating on Al<sub>2</sub>O<sub>3</sub>–ZrO<sub>2</sub>–SiC composite ceramics and its <i>in vitro</i> biological activities
No full textSupplemental Material, sj-pdf-1-jba-10.1177_08853282221076226 for Fabrication of porous gehlenite coating on Al2O3–ZrO2–SiC composite ceramics and its in vitro biological activities by Xianzhi Chen, Jiaxin Li, Shuidan Gu, Zhiyu Wu, Feng Wen, Lijie Luo, Jianbao Li and Yongjun Chen in Journal of Biomaterials Applications</p
SUPPLEMENTAL_MATERIAL – Supplemental material for Different risk factors in identical features of intracranial atherosclerosis plaques in the posterior and anterior circulation in high-resolution MRI
No full textSupplemental material, SUPPLEMENTAL_MATERIAL for Different risk factors in identical features of intracranial atherosclerosis plaques in the posterior and anterior circulation in high-resolution MRI by Ziqi Xu, Mingyao Li, Jinhao Lyu, Zhikai Hou, Jianfeng He, Dapeng Mo, Feng Gao, Xin Liu, Binbin Sui, Mi Shen, Yuesong Pan, Yongjun Wang, Xin Lou, Zhongrong Miao, Benyan Luo and Ning Ma in Therapeutic Advances in Neurological Disorders</p
China's rural development challenges: land tenure reform and local institutional experimentation
No full textDespite its unprecedented achievements in rural development, China remains a lower-middle income country. Unsound practices in farmland use and management have contributed to farmland loss, rising social conflicts and deprivation of the landless, which perpetuates rural poverty and land tenure insecurity of the weak and poor. The current hybrid land tenure systems characterized by collective ownership and individual use rights exert both positive and negative effects on land governance. China’s approach to land laws, policies and institutional reforms is characterized by inherent weaknesses which impede the strengthening of peasants’ rights and collective action in the process. With the simplistic assumption on the importance of land tenure to facilitate its transferability and scaled agricultural production, the current reform is undergoing a risky transformation that may backfire. In this sense, the Chinese approach bears resemblances with other countries whose experiences have failed the poor and have produced unintended consequences. In essence, the failure to take into account the livelihoods of the poor especially from sustainable land use perspectives exemplifies their pursuit of short-term gains rather than longer-term solutions to complex rural development issues. The challenges confronting China’s rural development require a renewed understanding of what constitutes an appropriate land tenure system that suits the local conditions of a given community. This needs a holistic study of what kind of land tenure systems exist in China, how they have worked in the past, what their problems are, and how they can be redressed to suit the needs of the poor.
Zie: Summary
Spontaneous Rupture of Hepatocellular Carcinoma: Pathogenesis, Clinical Management, Prognostic Factors, and Future Directions
No full textYuan Cheng,1,&ast; Feng Ye,2,&ast; Yongjun Chen2 1Department of Medical Oncology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210002, People’s Republic of China; 2Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China&ast;These authors contributed equally to this workCorrespondence: Yongjun Chen, Email [email protected]: Spontaneous rupture of hepatocellular carcinoma (srHCC) is a life-threatening complication with complex pathophysiology and heterogeneous clinical presentations. This review aims to provide an up-to-date summary of the pathogenesis, clinical features, treatment strategies, prognostic factors, and emerging research in srHCC. We discuss current understanding of risk factors and rupture mechanisms, outline diagnostic and therapeutic approaches—including surgical, interventional, and systemic options—and explore postoperative management and prognosis. We also highlight recent clinical evidence and unmet research needs. Understanding the multifaceted nature of srHCC is essential to improve outcomes and guide future research directions.Keywords: spontaneous rupture, hepatocellular carcinoma, TACE, conversion therapy, prognosis, adjuvant therap
The mean suspended sediment concentration profile of silty sediments under wave-dominant conditions
No full textSuspended sediment concentration (SSC) is one of the fundamental topics in sediment study. The parameterization of the SSC profile of silty sediments is still under-researched. This study focuses on the mean SSC profile for silty sediments under non-breaking wave-dominant conditions. First, inspired by a 1DV model, different types of the distribution of mean eddy viscosity were proposed, i.e., a toe-type distribution over flat bed and a constant-toe type distribution over rippled bed. Then, the time-averaged diffusion equation for suspended sediment transport was analytically solved, and expressions for the mean SSC profiles were derived. The expressions involve several basic physical processes, including the effects of bed forms, stratification, hindered settling and mobile bed. Verification using a number of experimental datasets showed that the proposed expressions can properly calculate the mean SSC for silt and are applicable for sand as well. In conclusion, this research provides an approach to estimate the mean SSC for silty sediments under wave-dominant conditions, which is expected to be applicable for engineering practice and numerical modelling.Accepted Author ManuscriptCoastal Engineerin
Programmed exosome fusion for energy generation in living cells
No full text© 2021, The Author(s), under exclusive licence to Springer Nature Limited.Biological membrane-enclosed organelles are fascinating examples of spatially confined nanoreactors for biocatalytic transformations such as cascade reactions involving multiple enzymes; however, the fabrication of their synthetic mimics remains a considerable challenge. Here we demonstrate supramolecular chemistry-based bridging of two membranes leading to controlled fusion of exosomes that act as nanoreactors for effective biocatalytic cascades, with prolonged functionality inside of living cells. Exosome membrane proteins were chemically engineered with a catechol moiety to drive fusion by supramolecular complexation to bridge the membranes. This strategy successfully encapsulated multiple enzymes and assembled the minimal electron transport chain in the plasma membrane, leading to tuneable, enhanced catalytic cascade activity capable of ATP synthesis inside of tissue spheroids. This nanoreactor was functional for many hours after uptake into living cells, showed successful penetration into tissue spheroids and repaired the damaged region by supplying ATP, all of which represent an advance in the mimicking of nature’s own organelles. [Figure not available: see fulltext.].11Nsciescopu
Volcanic gas reservoir characterization / Qiquan Ran, Yongjun Wang, Yuanhui Sun, Lin Yan, Min Tong.
No full textIncludes bibliographical references and index.xix, 583 pages :"This introduction chapter summarizes our current understandings of volcanic gas reservoirs worldwide and in China. The challenges and their innovative technical solutions presented in this book, as well as the significance of gas reservoir characterization, are summarized based on the authors' real case studies in Chinese volcanic gas fields during the last decade. A flow chart representing the research concepts and approaches that deal with specific difficulties in volcanic gas reservoir characterization provides the readers with an outline of this book"-- Provided by publisher
The spectral positioning algorithm of new spectrum vehicle based on convex programming in wireless sensor network
No full textCorrection to: Laccase from Scytalidium thermophilum: Production Improvement, Catalytic Behavior and Detoxifying Ability of Diclofenac (Catalysis Letters, (2019), 149, 7, (1833-1844), 10.1007/s10562-019-02771-1)
No full textThe article "Laccase from Scytalidium thermophilum: Production Improvement, Catalytic Behavior and Detoxifying Ability of Diclofenac" written by "Sonia Ben Younes, Saoussen Ben Khedher, Yongjun Zhang, Sven-Uwe Geissen and Sami Sayadi" was originally published electronically on the publisher's internet portal on 2 April 2019. The author Sayadi Sami's affiliation has been changed from (1,4) to (4). At the time of publication of the paper, the author Sami Sayadi is affiliated solely to the Center for Sustainable Development at Qatar university. The original article has been corrected. 2022, Springer Science+Business Media, LLC, part of Springer Nature.Scopu
Structural Evolution of Boron Clusters on Ag(111) Surfaces - From Atomic Chains to Triangular Sheets with Hexagonal Holes
No full textUnlike graphene and other 2D materials, borophene is 2D polymorphic with diverse hexagonal holes (HHs)-triangles ratios and the concentrations of HHs are highly substrate dependent. Here, we systematically explored the evolution of boron cluster on Ag(111) surface, B-N@Ag(111) (N=1 similar to 36), to understand the nucleation of 2D boron sheet on metal surface. Our calculation showed that, with the size increasing, the structures of most stable B-N clusters undergo an evolution from compact triangular lattice, such as double-chains or triple-chains, to the ones with mixed triangular-hexagonal lattices. The first single-HH appears at N=12 and the first double-HH appears at N=27. The stability of large B-N clusters with mixed structures is derived from the charge transfer between triangular lattice and the HHs, as well as between the substrates and the B-N clusters. Our results provide a deep understanding on the formation of small boron clusters in the initial nucleation stage of borophene growth.11Nsciescopu
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