Results 31 to 40 of about 1,225,688 (255)

Desafíos petroleros para América Latina y África ante la expansión asiática [PDF]

, 2016
La menor dependencia por parte de Estados Unidos de importaciones de crudo ha causado una reducción de los envíos desde América Latina y África. También Asia ha realizado esfuerzos por diversificar las fuentes de suministro para satisfacer su demanda ...
Guerrero, Diego, Hernández, Igor
core   +2 more sources

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

A Taphonomic Study of DS-22A (Bed I, Olduvai Gorge) and Its Implications for Reconstructing Hominin-Carnivore Interactions at Early Pleistocene Anthropogenic Sites

Quaternary
The longstanding debate over early hominin subsistence strategies, particularly the hunting-versus-scavenging hypothesis, as well as discussions regarding the functionality of Oldowan sites, has been primarily centered on the archeological and ...
Blanca Jiménez-García, Gabriel Cifuentes-Alcobendas, Enrique Baquedano, Manuel Domínguez-Rodrigo   +3 more
doaj   +1 more source

África, Diáspora e o Mundo Atlântico na Modernidade: perspectivas historiográficas

Cadernos de Pesquisa do CDHIS, 2011
Este artigo investiga as novas produções historiográficas que atribuem à África e à Diáspora um outro papel na formação da Modernidade e do Mundo Atlântico. Retiram o caráter de vitimização que sempre foi projetado à África Central e do Oeste em relação ao circuito transatlântico.
openaire   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Metodología observacional [PDF]

, 2017
La metodología observacional ha adquirido una gran pujanza dentro de las metodologías de investigación en Ciencias del Comportamiento. Supone un acercamiento flexible y riguroso al estudio de la conducta, que se puede realizar en ambiente natural. Aunque
Borges del Rosal, África
core  

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

Molecular 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, Yang Song, Madeleine Ndahayo, Anirudh Saxena, Theresa Guo, Dylan Z. Kelley, Jessica Gore, Andrew Hennigan, Alexa Anderson, John C. Papadimitriou, Daria A. Gaykalova   +10 more
wiley   +1 more source

Relações bilaterais entre os Estados Unidos Mexicanos e a União Europeia. Um estudo de caso sobre o programa Erasmus Mundus e o seu impacto nos estudantes mexicanos Vol. 8, Nº. 2 [PDF]

Janus.net, 2017
O objetivo desta investigação é analisar se a implementação do programa Erasmus Mundus criou um impacto positivo nas relações bilaterais entre os Estados Unidos Mexicanos e a União Europeia no período entre 2009 e 2014.
Isac Cruz Gutiérrez , José G. Vargas-Hernández   +1 more
doaj   +1 more source

Guerra colonial : uma aliança escondida [PDF]

, 2009
Em 1970 teve início uma profunda transformação das relações entre Portugal e a África do Sul, depois de uma reunião de alto nível em Pretória, entre delegações dos dois países.
Afonso, Aniceto
core  

Identification of serum protein biomarkers for pre‐cancerous lesions associated with pancreatic ductal adenocarcinoma

Molecular Oncology, EarlyView.
This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns, Jaclyn S. Long, Sergio Lilla, Kelly Hodge, Marcus J. G. W. Ladds, Colin Nixon, Paula Fernández‐Palanca, Sara Zanivan, Pilar Acedo, Stephen P. Pereira, Kevin M. Ryan   +10 more
wiley   +1 more source