Results 31 to 40 of about 5,278,373 (257)

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
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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  

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

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

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

Computational Rheology with Integral Constitutive Equations

open access: yesApplied Rheology, 1999
Computational rheology deals with the formulation and solution of constitutive equations for non-Newtonian materials. From these the emphasis is put on polymeric materials, which exhibit both viscous and elastic behaviour in flow and deformation.
Mitsoulis Evan
doaj   +1 more source

Fabrication and Biodegradability of Starch Cell-Plastics as Recyclable Resources

open access: yesApplied Sciences, 2021
Recently, cell-plastics, which are composed of unicellular green algal cells and biodegradable compounds as ingredients and fillers, have been suggested as carbon-recyclable materials instead of petroleum-based plastics.
Akihito Nakanishi   +7 more
doaj   +1 more source

Epigenetic silencing of the liver‐specific lncRNA LUNAR promotes liver cancer progression via NOTCH activation

open access: yesMolecular Oncology, EarlyView.
LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang   +9 more
wiley   +1 more source

Catalogació de l’impacte ambiental de plàstics. Materials naturals [PDF]

open access: yes, 2015
Els plàstics són un dels materials més utilitzats en tots els sectors de la industria, tanmateix tenen dos problemes importants. Per una banda el seu origen fòssil i per altra la disposició final d’aquets materials.
Gil Rodríguez, Maria
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