Results 11 to 20 of about 124,402 (160)

Use of Hive Debris to Detect Acute Bee Paralysis Virus, Chronic Bee Paralysis Virus and Deformed Wing Virus in Honey Bees: An Innovative and Non-Invasive Approach. [PDF]

open access: yesVet Med Sci
Detection of ABPV, CBPV and DWV viruses in honey bees and hive debris: a performance analysis of the two matrices in order to identify an innovative and non‐invasive approach. ABSTRACT Honey bees are affected by several pathogens, including different RNA viruses such as Acute Bee Paralysis Virus (ABPV), Chronic Bee Paralysis Virus (CBPV) and Deformed ...
Olivieri S   +6 more
europepmc   +2 more sources

Riesgo y Rendimiento del BVG Index: Análisis y Proyección Econométrica

open access: yesActualidad Económica, 2021
El objetivo de esta investigación es analizar el comportamiento del rendimiento y volatilidad del BVG Index comprendido durante el periodo 2012-2017. A través de un modelo ARIMA se trata de predecir los rendimientos mensuales del BVG Index para el año ...
Emilia Espín Esparza   +2 more
doaj  

La certificación como estrategia para la recuperación de la confianza del consumidor en la adquisición de la carne de ternera

open access: yesEconomía Agraria y Recursos Naturales, 2011
El objetivo del trabajo se centra en analizar el efecto de la presencia de etiqueta en un producto con el fin de minimizar el riesgo percibido o la incertidumbre asociada al producto.
Ramona Barrena   +4 more
doaj   +1 more source

Tracing the metabolic rift in Colombia's greengrocer: an environmental history of the Anaime Valley [PDF]

open access: yes, 2020
This paper stems from research to reconstruct an environmental history of agriculture in the Anaime Canyon Valley and better understand the environmental consequences of having transformed the area into “Colombia's greengrocer”.
Doughman, Richard
core   +1 more source

Integrating in situ conservation of plant genetic resources with ex situ conservation management: Involving custodian farmers, benefits and their willingness to accept compensation

open access: yesScientia Agropecuaria, 2023
Compensation for custodian farmers to provide agrobiodiversity-conservation services in their farms (in situ) is an emerging global approach because it can generate public benefits when it comes to important plant genetic resources (PGRs) for food and ...
Eliet Amancah   +4 more
doaj   +3 more sources

Classification criteria and commercial profile re-definition of the Family Farm Agriculture in Chile, Maule region

open access: yesRevista de la Facultad de Ciencias Agrarias, 2022
In Chile, small-scale farmers are classified according to old approaches from 1993 that do not include changes occurred in the last two decades.
Roberto Jara-Rojas   +3 more
doaj  

Demanda turístico-recreativa y equipamientos de uso público en monumentos naturales protegidos: La “Cueva de los Murciélagos” en el Parque Natural de las Sierras Subbéticas

open access: yesPirineos: Revista de Ecología de Montaña, 2019
Para la gestión de los flujos turístico-recreativos en los espacios y monumentos naturales protegidos, su planificación medioambiental y el impulso del desarrollo local, la caracterización de los visitantes se revela como una necesidad básica.
Manuel Rivera Mateos   +2 more
doaj   +1 more source

Globalization, growth and distribution in Spain 1500-1913 [PDF]

open access: yes
The endogenous growth literature has explored the transition from a Malthusian world where real wages, living standards and labor productivity are all linked to factor endowments, to one where (endogenous) productivity change embedded in modern ...
Jeffrey G. Williamson   +2 more
core   +9 more sources

Abrigos, simas y graneros. Sobre el uso de las cuevas en la Edad del Bronce en la comarca de L'Alcoià [PDF]

open access: yes, 2001
S'hi analitzen els materials i la distribució a la comarca de l'Alcoia de les coves amb materials de l'edat del bronze. També s'interpreta el seu funcionament en el context de la intensificació de l'economia agraria en aquest moment. Puraules claus: Edat
Fairén Jiménez, Sara
core  

Ant–aphid mutualism: the influence of Tapinoma ibericum (Hymenoptera: Formicidae) on Aphis gossypii (Hemiptera: Aphidae) control by commercial and spontaneous natural enemies

open access: yesInsect Science, EarlyView.
The mutualism between Tapinoma ibericum ants and Aphis gossypii disrupts the biological control exerted by Aphidius colemani in greenhouse peppers. Ant exclusion increased parasitism and the presence of most natural enemies, although Aphidoletes aphidimyza was more abundant with ants.
Jesús Foronda   +7 more
wiley   +1 more source

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