Results 91 to 100 of about 3,385,796 (302)
Variable-Diameter Drum with Concentric Threshing Gap and Performance Comparison Experiment
Applied Sciences, 2020 The threshing gap of the thresher device for rice combine harvester has to be adjusted in real time based on different feed rates to ensure the operation efficiency in the harvesting process.
Yaoming Li +3 more
doaj +1 more source
Structural insights into an engineered feruloyl esterase with improved MHET degrading properties
FEBS Letters, EarlyView.A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa +5 more
wiley +1 more source
Validitas dan reliabilitas instrumen asesmen kinerja literasi sains pelajaran Fisika berbasis STEM
Jurnal Penelitian dan Evaluasi Pendidikan, 2018 Penelitian ini merupakan bagian dari penelitian pengembangan asesmen kinerja literasi sains berbasis STEM pada pembelajaran fisika. Tujuan dari penelitian ini adalah untuk mengungkapkan validitas isi, validitas empiris, dan reliabilitas instrumen asesmen
Raden Roro Yayuk Srirahayu +1 more
doaj +1 more source
Tsvetaeva’s tragedy Ariadne: Stage performance experience
Shagi / Steps, 2022 The article examines Tsvetaeva's tragedy Ariadne and the difficulties of its stage performance. Analysis of the musical organization of the verse shows that the melodic-rhythmic structuring of direct speech creates the illusion of theatrical performance.
openaire +2 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Performance experiment of ultra high temperature cementing slurry system
Frontiers in MaterialsIntroduction: The escalating pursuit of oil and gas reserves in China has led to increasingly deep and ultra-deep well drilling, encountering extreme temperatures that challenge the heat resistance capabilities of cement slurries.
Qiang Zou +4 more
doaj +1 more source
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
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
Does competition enhance performance or cheating? A laboratory experiment [PDF]
In this paper we experimentally test whether competing for a desired reward does not only affect individuals’ performance, but also their tendency to cheat. Recent doping scandals in sports as well as forgery and plagiarism scandals in academia have been
Christiane Schwieren +1 more
core +3 more sources
Optimization of line control parameters for scroll compressors with variable base circle involute
Zhileng xuebaoBecause the volume of the variable base circular involute scroll compressor can be reduced under the premise of obtaining the same cooling capacity, it can meet the small and lightweight requirements of the vehicle air conditioning compressor.
潘淑丽 +5 more
doaj