Results 81 to 90 of about 64,093 (287)
FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
Factoring linear differential operators on measure chains
Journal of Inequalities and Applications, 2001 We extend to measure chains Abel's theorem, the existence of a set of positive Wronskians, and the Polya and Trench factorizations of disconjugate linear -differential operators.
Mathsen Ronald M +2 more
doaj
Speeding up tsunami forecasting to boost tsunami warning in Chile [PDF]
Natural Hazards and Earth System Sciences, 2019 Despite the occurrence of several large earthquakes during the last decade, Chile continues to have a great tsunamigenic potential. This arises as a consequence of the large amount of strain accumulated along a subduction zone that runs parallel to its ...
M. Fuentes +3 more
doaj +1 more source
RF photonic delay lines using space-division multiplexing
, 2018 We review our last work on dispersion-engineered heterogeneous multicore fiber links designed to act as tunable true time delay lines for radiofrequency signals.
Garcia, Sergi, Gasulla, Ivana
core +1 more source
AgricultureSowing depth significantly affects the germination of rapeseed, and different soil moisture conditions require corresponding sowing depths. However, most current trenching devices do not account for soil moisture content, and commonly used hydraulic or constant-force trenching equipment also exhibits deficiencies in stability and consistency.
Peiru Xu +7 more
openaire +2 more sources
Aggressive prostate cancer is associated with pericyte dysfunction
Molecular Oncology, EarlyView.Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero +11 more
wiley +1 more source
Underground SpaceThe modulus of soil reaction, representing the stiffness of a soil surrounding pipes, is a critical parameter in the design of buried flexible pipes. This study conducted plate loading tests on corrugated polyvinyl chloride, smooth polyvinyl chloride ...
Yu-qiu Ye +4 more
doaj +1 more source
Molecular Oncology, EarlyView.Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra +10 more
wiley +1 more source
Drivers of Bacterial α- and β-Diversity Patterns and Functioning in Subsurface Hadal Sediments
Frontiers in Microbiology, 2019 Oceanic trenches at hadal (>6,000 m) depths are hot spots of organic matter deposition and mineralization and can host abundant and active bacterial assemblages.
Eugenio Rastelli +9 more
doaj +1 more source
Measuring and modeling optical diffraction from subwavelength features [PDF]
, 2001 We describe a technique for studying scattering from subwavelength features. A simple scatterometer was developed to measure the scattering from the single-submicrometer, subwavelength features generated with a focused ion beam system.
Latta, Milton +5 more
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