Vol 10 No 2
10(2)
December 2018

Articles

UNED Research Journal
233-240
First pages
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Diana Herrero Villareal, Yency Calderón Badilla, Carmen Andrés Jiménez
241-246
New model for Physics tutorials and its effect on student performance at a distance university in Costa Rica
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Carmen Andrés Jiménez, Jacqueline Alfaro Azofeifa
247-256
Competency level of teachers in the Agroindustry chair in a distance university
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Ángel Madrigal-Valverde, Gabriel Garbanzo-León
257-266
Use of industrial waste in prenursery stage of oil palm (Elaeis guineensis, Arecaceae) production: growth and nutrient uptake
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Ebube Charles Amaechi, onyinye Mkpola Ukpai, Carmelita Chima Ohaeri, Uzoamaka Blessing Ejike, Ozioma Prisca Irole-Eze, Onyekachi Egwu, Chidiogo Comfort Nwadike
267-272
Distribution and seasonal abundance of Anopheline mosquitoes and their association with rainfall around irrigation and non-irrigation areas in Nigeria
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Oscar Leone, Soledad Valdecantos, Virginia Martínez
273-282
Histopathological markers of environmental stress in the fish Odonthestes bonariensis (Atheriniformes, Atherinopsidae) in two reservoirs of Argentina
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Macario González, Ángel Sosa-Bartuano, Julián Monge-Nájera
283-284
A velvet worm (Onychophora: Peripatidae) feeding on a free ranging spider in Sierra Llorona, Panama
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Abass Toba Anifowoshe, Oluyinka Ajibola Iyiola, Temitope Fatima Olafimihan, Segun Olayinka Oladipo, Sunday Frank Yakubu, Thuwaibat Oyiyoza Abubakar, Rukayat Ifedolapo Bakare, Kehinde Monica Akinseye, Faoziyat Adenike Sulaiman
285-295
In vivo enzyme activity and induction of DNA damage in Swiss albino male mice by automobile waste leachate
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Mauricio M. García R., Jesús A. Camacho M., Nedy C. Poleo S.
296-303
The genus Liocanthydrus in Venezuela (Coleoptera: Noteridae) with description of two new species
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Mauricio M. García R.
304-329
The genus Crenitulus in Venezuela (Hydrophilidae: Chaetarthriinae: Anacaenini) with description of twelve new species
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Fabricio Camacho Céspedes, Lidieth Uribe Lorío, Quint Newcomer, Karen Masters, Maureen Kinyua
330-341
Bio-optimization of compost with cultures of mountain microorganisms (MM) and digested sludge from bio-digester (LDBIO)
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Esteban Salazar-Acuña, Yesenia López-García
342-352
Aula en el Bosque, an environmental education program for the Costa Rican tropical forest: effect on students and teacher opinions
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Patricia Oreamuno Fonseca, José Eladio Monge Pérez
353-361
Maize landraces of Guanacaste, Costa Rica: grain characterization
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Hermes R. Alvarado-Montero, Carmen Monge-Montero, María Sol Vargas, Giselle Lutz, Julio F. Mata-Segreda
362-367
Absence of a molecular structural effect on the thermodynamic properties of several biodiesel materials
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José Bernal Azofeifa Bolaños, German Rivera Coto, Amelia Paniagua Vásquez, Roberto Cordero Solórzano
368-378
Morphogenetic responses of cuttings and in vitro plants of Vanilla planifolia (Orchidaceae) during initial development in greenhouse and agroforestry systems
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Onyekachi Egwu, Carmelita C. Ohaeri, Ebube C. Amaechi, Collins N. Ehisianya
379-385
Distribution and abundance of mosquito larvae in Ohafia, Abia State, Nigeria
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Alejandro Solórzano
386
Predation of the scorpion Centruroides bicolor by the Scorpion Eater Snake, Stenorrhina degenhardtii (Squamata: Dipsadidae).
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Esteban Pérez López, Diana Carlina Alvarado Rodriguez
387-396
Quantification by atomic absorption of Cu, Fe and Zn in distilled alcohol and water
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Javier Monge, Carol Sánchez
397-403
Composition of the community, population structure, reproductive status and habitat use of rodents in a poultry farm in Costa Rica
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Francisco S. Álvarez, Derick Herrerea, Arturo Angulo
404-408
First record of the highfin goby Gobionellus oceanicus (Gobiiformes: Gobiidae) in Costa Rican freshwaters
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María José Chassoul Acosta, Cindy Rodríguez Arias
409-415
Pollution and reduction of the El Laguito reservoir, Costa Rica, by urban waters: survey and physical-chemical properties
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Irma Gutiérrez-Sigueros, Carlos A. Cuenca-Soria, Leonardo I. Navarro-Angulo, Emilio J. Maldonado-Enríquez, Carolina E. Melgar-Valdes, Alfonso Castillo-Domínguez
416-421
Optimal time and dose of fluoxymesterone, for masculinization of Mayan fish Cichlasoma urophthalmus (Percidae: Cichlidae)
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Jose Pablo Gonzáles Blanco, Rodolgo WingChing-Jones
422-427
Production and reproduction of cows; Holstein, Jersey and their crossbreed, in five locations of Costa Rica
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Grethel Solano Mora, Rodolfo WingChing-Jones
428-434
Herd structure, and nutritional, sanitary, reproductive and environmental management of Iberoamerican horses in Costa Rica.
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Daniela Vargas-Sanabria, Carlos Campos-Vargas
435-446
A wildfires vulnerability model for Guanacaste Conservation Area, Costa Rica
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Verónica Bonilla Villalobos
447-454
Neighbors’ opinion on the use of a farm acquired by a public university for socio-environmental purposes: the case of Los Llanos, Costa Rica
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Rodolfo Antonio Hernández Chaverri, Lilia Arely Prado Barragán
455-468
Impact and biorefinery opportunities for agricultural waste of the cultivation of pineapple (Ananas comosus) in Costa Rica
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Dolores Castañeda-Antonio, Antonio Rivera-Tapia, Esther Choy Flores, Ricardo Munguía-Pérez, Roberto Portillo-Reyes, Jesús Muñoz
469-474
Antimicrobial activity evaluation of residual orange oil
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