Results 121 to 130 of about 292,309 (355)

La actividad comercial de los puertos vascos y cántabros medievales en el Atlántico [PDF]

open access: yes, 2008
Las pequeñas villas costeras de la cornisa Cantábrica, especialmente las vascas y cántabras, orientan su actividad económica hacia el mar ya que la tierra en la que se asientan es escasa en productos alimenticios.
Arízaga Bolumburu, Beatriz
core   +2 more sources

More pumas (Puma concolor) does not change perceptions: The mismatched response of ranchers to the presence of a top carnivore

open access: yesPeople and Nature, EarlyView.
Abstract Human‐wildlife conflicts (HWCs) are one of the most critical conservation challenges worldwide. Large carnivores are frequently at the centre of these conflicts because of the perceived and real threats they pose to livestock and human safety.
Esperanza C. Iranzo   +10 more
wiley   +1 more source

La eficiencia de los puertos: Unidad ejecutora [PDF]

open access: yes, 1993
La eficiencia de los puertos: Unidad ejecutoraAl eliminar la “tarja”, la empresa naviera asume la total responsabilidad de la transportación, manejo y cuidado de las mercaderías.
Tobar Vega, Hugo
core   +1 more source

The impact of climate change induced natural disasters on healthcare: Rethinking intravenous fluids

open access: yes
Journal of Hospital Medicine, EarlyView.
Elizabeth A. Cerceo   +3 more
wiley   +1 more source

Metabolite Screening From Pinus pinea Needles Reveals (+)‐Isocupressic Acid as a Key Phytotoxin for Weed Management

open access: yesPhytochemical Analysis, EarlyView.
This study explores the phytotoxicity of Pinus pinea needle extracts and metabolites to evaluate their potential for controlling dicotyledonous weeds. A strategy based on GC–MS, NMR, and optical methods revealed an array of aromatic compounds which are of crucial interest for phytochemical research. Hence, a bio‐guided purification led to the isolation
Hajer Hlaili   +11 more
wiley   +1 more source

Factores que influyen en el precio de la manzana de exportacion: un estudio de caso. [PDF]

open access: yes, 2005
41 p.El objetivo general de este estudio es estimar una función hedónica de precios para la manzana de exportación chilena. Los objetivos específicos son,estimar el impacto porcentual en el precio de exportación, de: a) las variedades Granny Smith (GSm),
Torres Diaz, Gabriela Andrea   +1 more
core  

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