Results 81 to 90 of about 31,618 (270)

Enantioselective Synthesis of the C1–C6 and C7–C23 Fragments of the Proposed Structure of Iriomoteolide 1a [PDF]

, 2012
Synthesis of the C1-C6 and C7-C23 fragments of the proposed structure of iriomoteolide 1a has been accomplished. Key steps include a cross metathesis to form the C15-C16 E olefin and a chelation controlled Grignard addition to form the tertiary alcohol ...
Crimmins, Michael T., Dechert, Anne Marie R.   +1 more
core   +1 more source

C23 promotes tumorigenesis via suppressing p53 activity

Oncotarget, 2016
C23 is an abundant and multi-functional protein, which plays an important role in various biological processes, including ribosome biogenesis and maturation, cell cycle checkpoints and transcriptional regulation [1, 2]. However, the role of C23 in controlling tumorigenesis has not been well defined. Here we report that C23 is highly expressed in cancer
Li, Qun, Zhu, Yan, Hou, Lili, Wang, Juan, Hu, Guilin, Fang, Xing, Hu, Yamin, Tao, Tingting, Wei, Xin, Tang, Haitao, Huang, Baojun, Hu, Wanglai   +11 more
openaire   +3 more sources

Demand‐Driven Location of Repair Activities and the Local Distribution of the Circular Economy

Sustainable Development, EarlyView.
ABSTRACT This paper explores the territorial embeddedness of repair at the local and regional level, which is part of the relatively understudied regional circular economy. This study involves the analysis of the dispersion of repair employment compared to other economic sectors as well as the degree of connection of repair activities to other economic
Francisco López‐Bermúdez, Xavier Vence   +1 more
wiley   +1 more source

Operationalizing the Waste Hierarchy Though A Synthetic Performance Indicator: Evidence From Spain

Sustainable Development, EarlyView.
ABSTRACT Ensuring compliance with the European Union (EU) waste hierarchy is essential for advancing circular economy objectives and meeting legally binding municipal solid waste (MSW) targets. This study develops and applies the Waste Hierarchy Achievement Synthetic Indicator (WHASI), an innovative synthetic index designed to assess territorial ...
Victor Mocholí, Trinidad Gómez, María Molinos‐Senante   +2 more
wiley   +1 more source

How Firms Construct Climate Identities in New Zealand: Resolving the Tensions Between Economic Imperatives and Climate Goals

Sustainable Development, EarlyView.
ABSTRACT Drawing on legitimacy theory, the aim of this study is to answer the research question: ‘How does corporate climate identity construction enable firms to make legitimacy claims while managing tensions between the economic imperatives and climate goals?’ The research design relies on a discourse analysis of 252 corporate reports published ...
Hang Pham
wiley   +1 more source

Chemoenzymatic Synthesis of the C10−C23 Segment of Dictyostatin

, 2016
Employing enzymatic desymmetrization and resolution, respectively, the two aldehydes 8 and 20 were prepared. The precursor to aldehyde 8, meso-2,4-dimethylglutaric anhydride 3, could be obtained by base treatment of the diastereomeric mixture. Aldehyde 8
Hartmut Röhm (2647408), Evgeny Prusov (2647405), Martin E. Maier (1300863)   +2 more
core   +1 more source

MXene‐Based Flexible Memory and Neuromorphic Devices

Small, EarlyView.
The unique two‐dimensional structure, excellent electrical conductivity, and diverse surface groups of MXenes have garnered significant attention. Coupled with their exceptional flexibility, MXene‐based devices hold immense potential for flexible memory and neuromorphic systems. This review comprehensively discusses the fundamentals of flexible devices,
Yan Li, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Yan Yan, Shuangmei Xue, Kui Zhou, Meng Zhang, Yutong Zhang, Qi‐Jun Sun, Yi Liu, Vellaisamy A. L. Roy, Ye Zhou, Su‐Ting Han   +13 more
wiley   +1 more source

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

Environmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão, Igor Romeiro dos Santos, Jerônimo Raimundo de Oliveira Neto, Flávio Olimpio Sanches Neto, Felipe Cirqueira Dias, Jéssyca Moreira Morais, Lorranny Pereira de Assis Valadares, Naiara Raica Lopes de Oliveira, Mirelle Garcia Silva Bailão, Luiz Carlos da Cunha, Valter Henrique Carvalho‐Silva, Thiago Lopes Rocha, Elisa Flávia Luiz Cardoso Bailão   +12 more
wiley   +1 more source

Synthesis and Pd(II) Complexes of an Unsymmetric and Flexible Ferrocene Bisphosphine

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Insertion of flexible spacers into the pivotal C(ferrocene)P bonds in dppf increases flexibility of the resulting homologated ligands and lowers their tendency to coordinate as P,P′‐chelating ligands. To expand the family of flexible homologated analogs of 1,1′‐bis(diphenylphosphino)ferrocene, the unsymmetric bisphosphine 1‐(diphenylphosphino)‐1′‐[2 ...
Jakub Antala, Matěj Vlček, Ivana Císařová, Petr Štěpnička   +3 more
wiley   +1 more source

Stereochemical assignment of the C23-C35 portion of sphinxolide/reidispongiolide class of natural products by asymmetric synthesis

, 2003
The absolute configuration of the seven stereogenic centers contained in the C23-C35 portion of reidispongiolide A is determined by asymmetric synthesis of the corresponding fragment obtained by ozonolysis of the natural macrolide.
M. V. D'AURIA, A. ZAMPELLA, ZAMPELLA, ANGELA, G. BIFULCO, SEPE, VALENTINA, D'AURIA, MARIA VALERIA, R. D'ORSI, BASSARELLO, Carla, BIFULCO, Giuseppe, V. SEPE   +9 more
core   +1 more source