Results 31 to 40 of about 116,812 (294)

The On-Line Measurement of Water in Polymers

open access: yesMeasurement + Control, 1968
Water is a common contaminant of many products. Most natural products such as grain and flour, tobacco, wood and paper contain a high proportion of water in their normal states and can be too wet or too dry.
G. L. Collier BSc, ARIC, CEng, AMIERE   +1 more
doaj   +1 more source

Microplastics in the Mediterranean marine environment: a combined bibliometric and systematic analysis to identify current trends and challenges

open access: yesMicroplastics and Nanoplastics, 2022
In recent decades, the potential toxicological and environmental effects of microplastics (MPs) in the Mediterranean Sea region have received growing attention.
Marija Papadimitriu, Graeme Allinson
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Neodymium-Mediated Coordinative Chain Transfer Polymerization of Isoprene in the Presence of External Donors

open access: yesMolecules, 2023
Nd-based polydiene elastomers, including NdIR and NdBR, are regarded as indispensable key raw materials in preparing green tires with excellent performance capabilities, but their wide application is still limited by the relative higher cost of Nd ...
Aiwu Ding   +5 more
doaj   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Rapid atom-efficient polyolefin plastics hydrogenolysis mediated by a well-defined single-site electrophilic/cationic organo-zirconium catalyst [PDF]

open access: gold, 2022
Alexander H. Mason   +6 more
openalex   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS 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

Influence of the Recyclate Content on the Process Stability and Part Quality of Injection Moulded Post-Consumer Polyolefins

open access: yesAdvances in Polymer Technology
In recent years, the drive to adopt sustainable practices and develop eco-friendly processes and products has gained significant momentum in the global polymer industry.
Pia Wagner   +2 more
doaj   +1 more source

Preparation of Higher Molecular Weight Poly (L-lactic Acid) by Chain Extension

open access: yesInternational Journal of Polymer Science, 2013
High molecular weight poly (lactic acid) (PLA) was obtained by chain extending with hexamethylene diisocyanate (HDI). The influences of the amount of chain extender, reaction time, and molecular weight changes of prepolymers on the poly(lactic acid) were
Chenguang Liu, Yuliang Jia, Aihua He
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

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