Skip to main content
Skip to main navigation menu
Skip to site footer
Open Menu
UNED Research Journal
Home
About
About the Journal
Editorial Team
Mission and Vision
Historical Review
Contact Us
FAQ
Statistics
Current issue
Previous issues
Submissions
Search
Search
Login
Register
Search
Home
/
Archives
/
Vol. 13 No. 1 (2021)
Vol. 13 No. 1 (2021)
Published:
2021-06-30
Issue general information
First pages 13(1)
e3565
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Reviewers list 2020
e3566
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Articles
Growth, photosynthesis and oxidative stress in Prosopis nigra (Fabaceae) under simulated glyphosate drift
Diego Ariel Meloni, Graciela Inés Bolzón
e3170
PDF
HTML
EPUB
Xanthism in Costa Rican Cichlid fish (Cichliformes: Cichlidae), and ontogenetic variation in Parachromis dovii.
Arturo Angulo, Jorge San Gil
e3093
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
The pampean gray fox (Lycalopex gymnocercus) as a disperser of blackberry seeds (Morus nigra)
Candela Duarte Baschini, Claudia M. Dellafiore
e3171
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Effect of hen housing (free-range, free cage, and cage) on fatty acids, consumption, and consumer perception of the eggs
Sianny Chavarría Zamora, Alejandro Chacón Villalobos, Rodolfo WingChing Jones
e3317
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Identification keys for the fish of continental and insular waters of Costa Rica. Part I: Families.
Arturo Angulo, Ana Rosa Ramírez Coghi, Myrna López Sánchez
e3145
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Physicochemical and microbiological quality of surface water in the Grande de Tárcoles River, Costa Rica: an ecological approach
Gabriela Pérez Gómez, Virginia Alvarado García, Jorengeth Abad Rodríguez Rodríguez, Federico Herrera, Rolando Sánchez Gutiérrez
e3148
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Feeding habitat of the understory arboreal snail Tikoconus costarricanus (Stylommatophora: Euconulidae) in a tropical montane wet forest, Costa Rica
Zaidett Barrientos
e3311
PDF
HTML
EPUB
Spatial variation of physicochemical parameters in a constructed wetland for wastewater treatment: An example of the use of the R programming language
Junior Pastor Pérez-Molina, Carola Scholz, Roy Pérez-Salazar, Carolina Alfaro-Chinchilla, Ana Abarca Méndez, Leandro Araya Leitón, Jeslyn Carranza Chaves, Addy Echevarría Figueroa, Mariana Elizondo Blanco, Rachel Ardón Rivera, Sofía Flores Aguilar, Catalina Solís Calderón
e3294
PDF
HTML
EPUB
Cyprinodontiform fishes of El Salvador
Francisco S. Álvarez, Saúl González Murcia, Caleb D. McMahan, Wilfredo A. Matamoros
e3303
PDF
HTML
EPUB
First record of the non-native fish Poecilia reticulata (Cyprinodontiformes: Poeciliidae), in Chiapas, southern Mexico
Paola López Fuentes, Manuel de Jesús Anzueto Calvo , Ernesto Velázquez Velázquez , Wilfredo A. Matamoros, Guillermo Salgado Maldonado
e3266
PDF
HTML
EPUB
Chemical composition of essential oils of the tree Melaleuca quinquenervia (Myrtaceae) cultivated in Costa Rica
José F. Cicció, Carlos Chaverri
e3327
PDF
HTML
EPUB
Greenhouse gases emitted by agricultural vehicles in Costa Rica
Natalia Gómez Calderón , Javier Ernesto Rodríguez Yáñez, Edwin Fabián Fernández Fernández
e3278
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Waist circumference as a predictor of cardiovascular disease risk factors in Costa Rican residents aged 60 years and over.
Eduardo Aguilar Fernández, Ana Maricela Carballo Alfaro
e3398
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Selection criteria for yield in cucumber (Cucumis sativus) grown under greenhouse conditions during the dry season
José Eladio Monge Pérez, Karla Chacón Padilla, Michelle Loría Coto
e3373
PDF (Español (España))
HTML (Español (España))
EPUB (Español (España))
Hypothesis
Why sloths defecate on the ground: rejection of the mutualistic model
Julian Monge-Nájera
e3438
PDF
HTML
EPUB
Language
English
Español (España)
facebook2
UNED Research Journal
Make a Submission
Make a Submission