Results 21 to 30 of about 5,093,415 (207)

Current Trends in Waste Plastics’ Liquefaction into Fuel Fraction: A Review

open access: yesEnergies, 2022
Polymers and plastics are crucial materials in many sectors of our economy, due to their numerous advantages. They also have some disadvantages, among the most important are problems with the recycling and disposal of used plastics. The recovery of waste
Anna Matuszewska   +2 more
doaj   +1 more source

Dràstics amb els plàstics: Projecte d'aprenentatge servei (APS) [PDF]

open access: yes, 2021
Programa Metropolità d'Educació per a la SostenibilitatPresentació per a la sessió de formació inicial del projecte d'ApS "Dràstics amb els plàstics": s'explica què és un projecte d'ApS, es fa una introducció a la temàtica que es treballarà i es ...
Àrea Metropolitana de Barcelona
core  

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

open access: yesFEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri   +5 more
wiley   +1 more source

Position Paper: the Sustainability of Plastics

open access: yesChemical Engineering Transactions, 2023
The unique properties and performance of plastic materials entail their massive production and use with consequently generation of huge amount of plastic waste, which can cause significant impact on the environment, if not properly managed. Institutional
Daniele Antonini   +8 more
doaj  

Conservation of Plastics (materials science, degradation and preservation)

open access: yesGe-conservación, 2011
Reseña del libro: Conservation of Plastics (materials science, degradation and preservation) Yvonne Shashoua Butterworth – Heinemann Oxford, 2008 285 páginas más 14 páginas introductorias, ilustraciones, tablas, esquemas, 195 x 250 cm ...
Margarita San Andrés Moya
doaj   +1 more source

Plastics in the US: toward a material flow characterization of production, markets and end of life

open access: yesEnvironmental Research Letters, 2020
Managing plastics has become a focal issue of the Anthropocene. Developments in plastic materials have made possible many of the technologies and conveniences that define our modern life.
Martin C Heller   +2 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Biodegradation of plastics at home composting conditions

open access: yesEnvironmental Challenges, 2022
Plastics have become an ever-increasing environmental pollution problem since high amounts of them are dumped every year into the environment. To remediate this problem, many proposals attempt to produce new plastics with the same sound characteristics ...
Godofredo Solano   +4 more
doaj   +1 more source

Developmental programmes drive cellular plasticity, disease progression and therapy resistance in lung adenocarcinoma

open access: yesMolecular Oncology, EarlyView.
This study shows that lung adenocarcinomas exploit developmental branching morphogenesis to acquire a therapy resistant basal‐like tumour cell state. This process was found to be regulated by combined TP53 loss‐of‐function and type‐I interferon signalling, identifying a novel axis for biomarker and therapeutic target discovery.
Kamila J Bienkowska   +13 more
wiley   +1 more source

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