Results 31 to 40 of about 53,118 (200)
Posibilidades de selección temprana en Pinus patula, Pinus radiata y Eucalyptus globulus [PDF]
, 2002 Proyecto de Graduación (Bachillerato en Ingeniería Forestal). Instituto Tecnológico de Costa Rica. Escuela de Ingeniería Forestal, 2002.La presente investigación tuvo por objetivo evaluar posibilidades de selección temprana en Pinus patula, Pinus ...
Arias-Salvatierra, Edgar +1 more
core
Complex of primary and secondary parasitoids (Hymenoptera: Encyrtidae and Signiphoridae) of Hypogeococcus spp. Mealybugs (Hemiptera: Pseudococcidae) in the New World [PDF]
, 2018 Se informan los resultados de los relevamientos de los parasitoides primarios y secundarios (hiperparasitoides) de Hypogeococcus spp. (Hemiptera: Pseudococcidae) realizados en el Nuevo Mundo durante el período 2009 para 2017 para obtener enemigos ...
Aguirre, María Belén +6 more
core +1 more source
Automatización del vivero Semigar
Visión Electrónica, 2022 En el siguiente artículo se describe el desarrollo e implementación de un sistema de regado automático por activación de parámetros de sensores de humedad según el pH de la tierra y lluvia con visualización en pc, un control de asistencia obtenido por un sensor biométrico archivándose en una base de datos y así poder registrar a los empleados y ...
Edgar Mauricio González-Clavijo +2 more
openaire +1 more source
Sustainable Development, EarlyView.ABSTRACT Championed as a pathway for sustainable growth, the “blue economy” (BE) has garnered increasing interest in recent decades. International organizations like the World Bank and the Organization for Economic Cooperation and Development (OECD) increasingly point to marine resources and activities as a “new frontier” for economic growth ...
Flora St. Pier +2 more
wiley +1 more source
Alcances Tecnológicos, 2019 Las raíces de las plantas forman asocia-ciones simbióticas mutualistas con dos tipos de microorganismos: bacterias y actino-micetos fijadores de nitrógeno (N), princi-palmente en leguminosas y hongos micorrí-cicos (micorrizas). Son muy pocas las familias botánicas donde hay especies queno forman micorrizas, tales como lascrucíferas ...
openaire +1 more source
Forest type influence on Heliconia‐dipteran interaction networks
Insect Conservation and Diversity, EarlyView.Responses to forest type depended on the developmental stage of dipterans. Bract traits and forest type influenced larval abundance, but forest type had no impact on adult alpha and beta diversity. Heliconia‐dipteran interaction networks showed a nested pattern for both forest types.
Diana M. Méndez‐Rojas +5 more
wiley +1 more source
A Conversation With David Bellhouse
International Statistical Review, EarlyView.Summary David Richard Bellhouse was born in Winnipeg, Manitoba, on 19 July 1948. He studied actuarial mathematics and statistics at the University of Manitoba (BA, 1970; MA, 1972) and completed his PhD at the University of Waterloo, Ontario, in 1975. After being an Assistant Professor for 1 year at his alma mater, he joined the University of Western ...
Christian Genest
wiley +1 more source
Scientific Reports, 2021 Grapevine cultivars are clonally propagated to preserve their varietal attributes. However, genetic variations accumulate due to the occurrence of somatic mutations.
Luciano Calderón +11 more
doaj +1 more source
Existence of three solutions for a first-order problem with nonlinear non-local boundary conditions [PDF]
, 2012 Conditions for the existence of at least three positive solutions to the nonlinear first-order problem with a nonlinear nonlocal boundary condition given by && y'(t) - p(t)y(t) = \sum_{i=1}^m f_i\big(t,y(t)\big), \quad t\in[0,1], && \lambda y(0) = y ...
Anderson, Douglas R.
core +2 more sources
Has the Euro Paid Off? A Study of the Trade‐Induced Welfare Effects of the EMU
Journal of Money, Credit and Banking, EarlyView.Abstract This paper aims to provide policy‐relevant insights into the effect of the euro on trade. It uses a new data set of bilateral international and intranational manufacturing trade flows for 69 countries over the period 1986−2016. A general equilibrium gravity model is estimated to quantify the welfare effect of the euro and its impact on ...
Silviano Esteve‐Pérez +3 more
wiley +1 more source