Results 41 to 50 of about 3,455,877 (273)

Correlation of the differential expression of PIK3R1 and its spliced variant, p55α, in pan‐cancer

open access: yesMolecular Oncology, EarlyView.
PIK3R1 undergoes alternative splicing to generate the isoforms, p85α and p55α. By combining large patient datasets with laboratory experiments, we show that PIK3R1 spliced variants shape cancer behavior. While tumors lose the protective p85α isoform, p55α is overexpressed, changes linked to poorer survival and more pronounced in African American ...
Ishita Gupta   +10 more
wiley   +1 more source

La exhibición de la intimidad como estrategia de inclusión social entre los jóvenes y adolescentes

open access: yesEntretextos, 2015
Las comunidades virtuales, las redes sociales on line y el celular se han legitimado entre los adolescentes como las formas de inclusión social por excelencia.
Rosalía Winocur
doaj   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

open access: yesMolecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos   +6 more
wiley   +1 more source

Metodologias para o ensino de astronomia e Física através da construção de telescópios

open access: yesCaderno Brasileiro de Ensino de Física, 2008
Este trabalho propõe a construção manual de telescópios refletores como ferramenta didática para o ensino de Física e Astronomia. Cada etapa da construção pode ser aliada a conteúdos de óptica geométrica e óptica Física com abordagens diferentes ...
Tamara de O. Bernardes   +2 more
doaj   +1 more source

Surface Enhanced Raman Scattering (SERS): From Fundamental Mechanism to Bio-Analytics Tools [PDF]

open access: yesNano Biomedicine and Engineering, 2016
This review discusses the surface-enhanced Raman scattering (SERS) with efficiencies enhanced by as much as 1014-1015 fold as well as a SERS cross section on the order of 10-17-10-16 cm2/molecule. Despite the existing controversy on the origin of the enhancement, SERS effect offers new opportunities for spectroscopic detection of single molecules near ...
Xiao Zhi, Li Lin, Di Chen
openaire   +2 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

Homologous expression and purification of human HAX‐1 for structural studies

open access: yesFEBS Open Bio, EarlyView.
This research protocol provides detailed instructions for cloning, expressing, and purifying large quantities of the intrinsically disordered human HAX‐1 protein, N‐terminally fused to a cleavable superfolder GFP, from mammalian cells. HAX‐1 is predicted to undergo posttranslational modifications and to interact with membranes, various cellular ...
Mariana Grieben
wiley   +1 more source

É eticamente aceitavel o uso de recém cadaveres no ensino de procedimentos médicos?

open access: yesRevista do Colégio Brasileiro de Cirurgiões
A utilização de recém-cadáveres no ensino de procedimentos médicos ocorre com frequência desconhecida. Na área cirúrgica o treinamento de habilidades tem fundamental importância devido à necessidade de procedimentos invasivos próprios dos cirurgiões ...
José Marques Filho
doaj   +1 more source

ATG4B is required for mTORC1‐mediated anabolic activity and is associated with clinical outcomes in non‐small cell lung cancer

open access: yesFEBS Open Bio, EarlyView.
The relationship between anabolic and catabolic processes governing lung cancer cell growth is nuanced. We show that ATG4B, an autophagy regulator, is elevated in lung cancer and that high ATG4B is associated with worse patient outcomes. Targeting ATG4B in cells reduces growth, protein synthesis, and mTORC1 activity, demonstrating a new relationship ...
Patrick J. Ryan   +6 more
wiley   +1 more source

El carisma de un joven profesor inconformista: la fuerza y la magia de Ser y tiempo

open access: yesDifferenz, 2014
Todavía hoy en día, Ser y tiempo sigue siendo un título mágico, compuesto de dos palabras intrigantes que, en su compleja sencillez, intenta repensar la pregunta fundamental de la historia de la filosofía: la pregunta por el ser.
Jesús Adrián Escudero
doaj   +1 more source

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