Results 71 to 80 of about 2,562,050 (291)

Análisis económico del sistema ovino extensivo del departamento Magallanes – Provincia de Santa Cruz (Región Agroecológica Meseta Central Santacruceña).

, 2015
El sistema seleccionado para el análisis económico, es un modelo representativo de los establecimientos ganaderos orientados a la producción ovina extensiva, localizados en el departamento Magallanes ubicado en el centro-este de la provincia de Santa ...
Andrade, Larry, Aguilar, Marcelo Javier, Alvarez, Roberto Horacio, Schorr, Alan Geoffrey   +3 more
core   +1 more source

Nuevo registro de Gallineta Chica (Rallus antarcticus) en Puerto San Julián, Santa Cruz

Nuestras Aves
La Gallineta Chica (Rallus antarcticus) se consideró posiblemente extinta; posteriormente fue redescubierta en la provincia de Santa Cruz. Se sospecha que realiza movimientos migratorios, aunque estos aún son poco conocidos. Aquí presentamos un llamativo
Ian A. Walker, Juan I. Jones
doaj   +1 more source

Human iPSC‐Derived Tissue‐Engineered Nigrostriatal Pathway for Chronic Restoration of Dopaminergic Axon Tracts in a Rat Parkinson's Model

Advanced Healthcare Materials, EarlyView.
Inspired by conventional cell therapy and emerging bioengineering approaches, the tissue‐engineered nigrostriatal pathway (TE‐NSP) has an anatomically‐inspired design comprising a population of human dopaminergic neurons with unidirectional, long‐projecting axon tracts.
Wisberty J. Gordián‐Vélez, Dimple Chouhan, Kevin D. Browne, James Lim, Saarang P. Karandikar, Rodrigo A. España, John E. Duda, H. Isaac Chen, D. Kacy Cullen   +8 more
wiley   +1 more source

Macrophage–Fibroblast Crosstalk Governs Tumor Mechanics, as Revealed by Spatiotemporal Force Mapping in 3D Spheroids

Advanced Healthcare Materials, EarlyView.
This study shows crosstalk among tumor cells, fibroblasts, and macrophages alters the physical forces inside 3D tumor spheroids. Incorporating deformable microparticles in 3D tumor spheroids, the researchers mapped mechanical stresses spatially and with respect to tumor growth (temporally).
Kunal P. Pednekar, Daan Vorselen, Jai Prakash   +2 more
wiley   +1 more source

Magnetoactive Hydrogels to Probe Curvature‐Directed Endothelial Cell Mechanosensing

Advanced Healthcare Materials, EarlyView.
This work establishes a platform to investigate local curvature as a regulator of endothelial mechanosensing independent of shear stress. Magnetoactive hydrogels enable on‐demand curvature of endothelial monolayers to reproduce tortuosity quantified by clinically established metrics.
Avinava Roy, Grace K. Hinds, Joshua Yu‐Chung Liu, Ziqian Yang, Rishab Yanala, Arina E. Velieva, Claudia Loebel   +6 more
wiley   +1 more source

El registro biológico humano de la costa meridional de Santa Cruz

Revista Argentina de Antropología Biológica, 2009
La costa patagónica constituye un sector de riesgo para el registro arqueológico, asociado a factores naturales y antrópicos. Al mismo tiempo, la conservación de las colecciones bioarqueológicas, destacándose la pérdida de restos óseos e información ...
Suby, Jorge A., Guichón, Ricardo Aníbal, Zangrando, Francisco Atilio   +2 more
doaj  

Modeling Early Metastatic Progression in Breast Cancer Using a Barrier‐Free, Perfusable Spheroid‐on‐a‐Chip Platform

Advanced Healthcare Materials, EarlyView.
Open‐port, barrier‐free microfluidic device for modeling early metastatic progression. A centrally positioned tumor spheroid releases invasive cells that migrate through the surrounding matrix and intravasate into endothelialized lateral channels.
Vira Sharko, Claudia Olaizola‐Rodrigo, Clara Bayona, Teodora Ranđelović, Rosa Monge, Estela Solanas, Sara Oliván, Ignacio Ochoa   +7 more
wiley   +1 more source

Estratigrafía en el oriente de la Bahía de la Lancha. Lago San Martín, Santa Cruz, Argentina

Revista del Museo de La Plata
Eu el área de la Bahía de la Lancha afloran las siguientes nnidades litoestratigr:,ficas : 1) Formación Bahía de la Lancha: Psammitas y pelitas marinas de espesor desconocido, del Devónico superior-Carbónico inferior; 2) Conglomerado AJTo~'() de la Mina (
Alberto C. Riccardi
doaj  

Highlights of the 'I Congress ecancer Choosing Wisely' March 30 and 31, 2022 Santa Cruz, Bolivia. [PDF]

Ecancermedicalscience, 2022
Limón R, Reynolds L, Rocha E, Richter L, Gianella M, de Guzman ON, Mejia G, Nina J, Rojas W, Avilés L, Maldonado I, Pacheco C, Martín C, Cervantes MG, Bakal F, Cazap E.   +15 more
europepmc   +1 more source

Bioprinted Stiffness‑Tunable Pancreatic Microniches to Decode Early Tumor Initiation Mechanisms

Advanced Healthcare Materials, EarlyView.
Stiffness‐tunable GelMA microniches generated by microvalve bioprinting preserve wild‐type acinar identity while revealing a nonlinear, Kras‐dependent response to matrix mechanics. Intermediate stiffness promotes acinar‐to‐ductal metaplasia and proliferation, defining a permissive mechanical window.
Aurelien Mazet, Charles Handschin, Theo Desigaux, Nathalie Dusserre, Marie‐Laure Stachowicz, Shane Fennell, Malou Lea, Silvia Arcucci, Benoît Thibault, Jean‐Christophe Fricain, Julie Guillermet‐Guibert, Hugo Oliveira   +11 more
wiley   +1 more source