Results 71 to 80 of about 353,813 (363)

A Conservation Assessment and Phylogenomic Evaluation of Protection Status in the Tropical Genus Heliconia L. (Zingiberales: Heliconiaceae)

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The primarily neotropical plant genus Heliconia has been cultivated commercially in gardens and nurseries for hundreds of years. Many of these same species are ecological keystones in their native habitats as important resources for herbivorous insects and pollinating hummingbirds, yet they face threats of habitat loss and degradation, competition with
W. John Kress   +3 more
wiley   +1 more source

Whalesong [PDF]

open access: yes, 1984
Schedule reflects changing needs - Beeton -- Financial aid for students limited -- Computer $avings offered to students -- Staff, students to meet candidates for director of university library -- Center offers services -- Whalesong taken to task by USUAJ

core  

Next‐generation sequencing sheds new light on a major lineage of Acanthaceae, clarifying previously uncertain relationships in Barlerieae

open access: yesTAXON, EarlyView.
Abstract The Acanthaceae tribe Barlerieae is an understudied lineage that consists of ca. 500 species, many of which are rare and range restricted. Though understudied, it is clear that many species play vital roles in tropical ecosystems, including supporting a wide range of pollinators and herbivores. The tribe contains 13 genera, the two largest and
Robert Comito   +3 more
wiley   +1 more source

Ideas alternativas en docentes y estudiantes de Ciencias Físico-Naturales

open access: yesWani
El presente artículo aborda ciertas ideas alternativas de los docentes de Ciencias Físico-Naturales, así como la relación entre estas y las que poseen estudiantes. El principal objetivo fue identificar y analizar la presencia de ideas alternativas sobre
Andrea del Carmen Arteaga Juárez   +3 more
doaj   +1 more source

Estado del arte de la medición de la productividad y la eficiencia técnica en América Latina: Caso Nicaragua

open access: yesRevista Iberoamericana de Bioeconomía y Cambio Climàtico, 2016
En este artículo se plasman los resultados de una revisión bibliográfica de textos y artículos científicos que abordan la teoría de la “Productividad” y de la “Eficiencia técnica” como dos magnitudes económicas claves para determinar el crecimiento ...
Álvaro Santiago López-González   +7 more
doaj   +1 more source

What Is the Need for and Access to Trauma Surgery in Low‐ and Middle‐Income Countries? A Scoping Review

open access: yesWorld Journal of Surgery, EarlyView.
Trauma is a major source of morbidity and mortality globally, but low‐ and middle‐income countries (LMICs) are disproportionately affected by higher volumes of trauma and worse health outcomes. Despite this, there are limited data describing how many individuals in these regions need trauma surgery, and how many are able to access it.
Thomas Edmiston   +18 more
wiley   +1 more source

A geothermal hydro wind PV hybrid system with energy storage in an extinct volcano for 100% renewable supply in Ometepe, Nicaragua [PDF]

open access: yesarXiv, 2019
Renewable resources are constantly increasing their share in energy systems around the world. This paper evaluates how the capital cost of renewable technologies affects the optimal configuration and cost of energy of an isolated power system, comprising only renewable resources.
arxiv  

An Examination of Six Basic Labor Rights in Nicaragua [PDF]

open access: yes, 2004
This report provides evidence of violations of basic labor rights in Nicaragua. The report offers cases of noncompliance for each labor right highlighted and then delves into a discussion of obstacles to ...
Asociación Servicios de Promoción Laboral
core   +1 more source

Coral reef fish visual adaptations to a changing world

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Coral reef ecosystems show fluctuations in their prevailing light environment in response to both regular (e.g. between seasons) and more prevalent stochastic events (e.g. human‐induced sediment runoff).
Abigail Shaughnessy, Fabio Cortesi
wiley   +1 more source

Hábitos alimenticios e hipertensión en pacientes ambulatorios de un Hospital en Honduras

open access: yesRevista Metropolitana de Ciencias Aplicadas
Los hábitos alimenticios tienen un papel importante en la prevención y manejo de la hipertensión arterial. La Organización Mundial de la Salud, demostró que los malos hábitos alimentarios desencadenan la hipertensión arterial que es el aumento de la ...
Medarda De Jesús López-Flores   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy