Results 41 to 50 of about 575,667 (310)

DIPLODON CF. COLHUAPIENSIS (BIVALVIA, HYRIIDAE) IN THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) AT THE RÍO SANTA CRUZ, PATAGONIA, ARGENTINA. STRATIGRAPHIC AND PALEOENVIRONMENTAL CONSIDERATIONS

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2019
The Santa Cruz Formation (Early–Middle Miocene) is one of the most widespread sedimentary units of the Argentine Patagonia. This unit contains an abundant and taxonomically diverse fossil vertebrate fauna, especially in mammals. Thus, the paleoecological
Leandro Martín Pérez   +3 more
doaj  

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang   +12 more
wiley   +1 more source

Determinación de la intensidad y error de muestreo para la evaluación de pastizales considerando diferentes escalas espaciales: Aportes para el método Santa Cruz. [PDF]

open access: yes, 2013
En el año 2007 la Agencia de Extensión Rural Río Gallegos de INTA organizó una reunión de trabajo con técnicos de distintas organizaciones y personas con distintas experiencias en evaluación de pastizales. El objetivo principal de la actividad fue por un
Peri, Pablo Luis   +5 more
core  

NEW PRIMATES FROM THE RÍO SANTA CRUZ AND RÍO BOTE (EARLY–MIDDLE MIOCENE), SANTA CRUZ PROVINCE, ARGENTINA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2019
Four specimens of primates were collected from the Santa Cruz Formation (Early–Middle Miocene) during expeditions undertaken by the Museo de la Plata, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, and Duke University in 2013, 2014, and ...
Richard Frederick Kay   +1 more
doaj  

Evaluación de la Avifauna Para Uso Ecoturístico en Humedales del Sur de Santa Cruz

open access: yesInformes Científicos y Técnicos (Universidad Nacional de la Patagonia Austral), 2017
Este estudio comprende una valoración cuali-cuantitativa de las especies de aves asociadas ecológicamente a humedales del sur de la provincia de Santa Cruz, Argentina.
Ariel Almendras   +2 more
doaj   +1 more source

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

Propuesta para un Plan Ganadero Ovino de la Provincia de Santa Cruz. Agosto de 2017 [PDF]

open access: yes, 2017
La finalidad del presente Plan Ganadero Ovino Provincial será el de mejorar la competitividad, el desarrollo y la sustentabilidad del sistema ovino extensivo en la provincia de Santa Cruz.
Santana, Jorge Luis   +2 more
core  

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

El registro biológico humano de la costa meridional de Santa Cruz

open access: yesRevista Argentina de Antropología Biológica, 2010
RESUMEN 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 ...
Jorge A. Suby   +2 more
doaj   +2 more sources

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

open access: yesMolecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute   +4 more
wiley   +1 more source

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