Results 31 to 40 of about 354,762 (311)
Friedel–Crafts Polymerizations [PDF]
Nature, 1946 α-METHYLSTYRENE has been polymerized at 25° C., using stannic chloride as catalyst, both in solution and in undiluted monomer, giving polymers of molecular weight up to approximately 11,000. Staudinger1, using this catalyst, obtained only a very low degree of polymerization (up to octamer), presumably due to the high temperatures reached in his ...
openaire +2 more sources
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source
Scientific African, 2023 Rehabilitation services are among the most severely impacted by the COVID-19 pandemic. This has increased the number of people not receiving the needed rehabilitation care.
Mohamed El Fezazi +3 more
doaj +1 more source
FEBS Letters, EarlyView.This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley +1 more source
How did the location of industry respond to falling transport costs in Britain before World War I? [PDF]
, 2006 This article explores the location of industry in pre–World War I Britain using a model that takes account both of factor endowment and also of New Economic Geography influences.
ABAY MULATU +4 more
core +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Weed control: Effectiveness of soil treatment compared with contact sprays in rank growing crops
California Agriculture, 1948 One of two contrasting methods might be used to control weds in rank growing crops such as coton, sugar cane, milo and corn: 1. A temporary sterilization of the soil to prevent the growth of wed sedlings and protect the crop; 2.
A Crafts
doaj
Application of Huangling mianhua image recognition and classification system based on deep learning
Discover ComputingTraditional methods for recognizing Huangling mianhua images suffer from poor generalization, insufficient local-detail perception and weak robustness, because they still rely on hand-crafted features or standard convolutional neural networks.
Dazhuang Li +5 more
doaj +1 more source
Comprehensive Analysis and Future Prospects of Electric Vehicles: Topologies, Efficiency, Challenges, and Power Integration [PDF]
EPJ Web of ConferencesThe electrification of transportation has received considerable attention in modern society for achieving sustainable energy targets. But electric vehicle sales still account for a small proportion in transportation sector.
Bounagui Mohamed +3 more
doaj +1 more source
Molecular Oncology, EarlyView.PARP inhibitors are used to treat a small subset of prostate cancer patients. These studies reveal that PARP1 activity and expression are different between European American and African American prostate cancer tissue samples. Additionally, different PARP inhibitors cause unique and overlapping transcriptional changes, notably, p53 pathway upregulation.
Moriah L. Cunningham +21 more
wiley +1 more source