Browsing by Title
Now showing items 4024-4043 of 13228
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Effective speaking techniques
(III Congreso Internacional de Lingüística Aplicada, 2011)El objetivo de este proyecto es que el aprendiente de una segunda lengua desarrolle habilidades de comunicación oral en su proceso de aprendizaje. Además, se pretende demostrar que los profesores pueden formar comunicadores ... -
Effectiveness of N-waves for predicting morphological changes due to tsunamis
(Elsevier, 2018)The research on morphological changes caused by tsunamis has increased considerably in the last few years, yet the processes behind this phenomenon are still not fully understood. This paper analyzes and compares numerical ... -
Effects of androgenic gland ablation on growth, sexual characters and spermatogenesis of the white shrimp, Litopenaeus vannamei (Decapoda: Penaeidae) males
(Aquaculture Research Vol.47 No.9 2768-2777, 2015-03-10)This research was implemented to study the effects of androgenic gland ablation in the white shrimp Litopenaeus vannamei to explore sex reversal potential as an alternative technology for monosex female mariculture based ... -
Effects of Autologous Conditioned Plasma® (ACP) on the healing of surgically induced core lesions in equine superficial digital flexor tendon
(WordPress, 2014-11)Tendon pathologies are among the most common musculoskeletal disorders in horses. After damage the tendon repairs by forming disorganized scar tissue that is of inferior functional quality than normal tendon, leading ... -
Effects of group work on the oral interaction of students enrolled in the course english integrated skills I (speaking/listening/reading) of the associate’s degree in english at Universidad Nacional, Brunca extension, Pérez Zeledón Campus: a case study
(Universidad Nacional, Costa Rica, 2016)This is a qualitative study aimed at researching the effects of group-work activities (GWAs) on the oral interaction of the students enrolled in the course English Integrated Skills I of the Associate’s Degree in English ... -
Effects of local and regional climatic fluctuations on dengue outbreaks in southern Taiwan
(PLOS ONE, 2017-06-02)Background: Southern Taiwan has been a hotspot for dengue fever transmission since 1998. During 2014 and 2015, Taiwan experienced unprecedented dengue outbreaks and the causes are poorly understood. This study aims to ... -
Effects Of Radio Transmitter Burdening On Locomotor Ability And Survival Of Iguana Hatchlings
(Allen Press, 2009)We performed a two-part experiment in 2007 and 2008 to investigate the effects of externally affixed radio transmitters on the locomotor performance and survival of green iguana {Iguana iguana) hatchlings. Using sprint ... -
Effects of season on donor and recipient cows and calf performance from birth to weaning in embryo transfer programs in the tropics
(MDPI, 2021-12-19)The aim of this study was to assess the seasonal effect of an embryo transfer program in the tropics on the donor response, recipient reproductive performance and calf growth from birth to weaning. This study included ... -
Effects of the protein: energy ratio in isocaloric diets on the growth of Cichlasoma managuense (Gunther 1869)
(Wiley & Sons, 1994)A feeding experiment was conducted to evaluate the growth of tiger guapote, Cichlasoma managuense (Gunther), fed on isocaloric diets with varying proteinxnergy ratios. The relative metabolic growth rate increased with ... -
Efficacy of calcein and Coomassie Blue dyeing of shell growing-edges and micro growth-bands: Ageing juvenile of Pinctada mazatlanica(Pterioida: Pteriidae)
(Universidad de Costa Rica, 2014)Age validation is the first step to determine shellfish species age determination. This information is vital for different inferential models used in marine ecosystem management activities. In spite that various validation ... -
Efficacy of Piper (Piperaceae) extracts for control of common home and garden insect pests
(Entomological Society of America, 2004)Extracts from three species of the plant family Piperaceae, Piper nigrum [L.], Piper guineense [Schum & Thonn], and Piper tuberculatum [Jacq.], were tested for efficacy against insects from five orders. All three species ... -
Efficacy of Souroubea-Platanus Dietary Supplement Containing Triterpenes in Beagle Dogs Using a Thunderstorm Noise-Induced Model of Fear and Anxiety
(Multidisciplinary Digital Publishing Institute, 2021-04-03)A novel botanical dietary supplement, formulated as a chewable tablet containing a defined mixture of Souroubea spp. vine and Platanus spp. Bark, was tested as a canine anxiolytic for thunderstorm noise-induced stress ... -
Efficiency measurement and Monte Carlo simulations of a CeBr3 scintillator
(Applied Radiation and Isotopes Vol.120. 71-75 2016, 2016-11)CeBr3 crystals meet many of the demands of high performance scintillators, due to their excellent timing properties, good effective Z and high photon yield. It is important to characterize their efficiency and to verify ... -
Eficacia de aceite esencial de Allium sativum en colmenas de Apis mellifera para control del ácaro Varroa destructor, en Costa Rica
(Universidad Nacional, Costa Rica, 2017)Se efectuó un estudio durante los meses de Mayo–Agosto 2017, en un apiario del Centro de Investigaciones Apícolas Tropicales (CINAT), de la Universidad Nacional de Costa Rica (UNA), ubicado en la comunidad de distrito Río ... -
Eficiencia de las macrófitas acuáticas Cyperus involucratus, Cyperus papyrus y Hedychium coronarium en la depuración de aguas residuales
(Universidad Nacional (Costa Rica), 2007)Se determinó la eficiencia de las macrófitas acuáticas emergentes Cyperus involucratus, Cyperus papyrus y Hedychium coronarium en la depuración de aguas residuales en humedales artificiales. El trabajo de campo se realizó ... -
Eficiencia técnica en hatos lecheros de Costa Rica
(Universidad de Costa Rica, 2015)Eficiencia técnica en hatos lecheros en Costa Rica. El objetivo de este trabajo fue cuantificar índices de eficiencia técnica de 1086 hatos lecheros de Costa Rica (año 2007) utilizando Análisis de Frontera Estocástica. ... -
Eficiencia y eficacia administrativa de los directores técnicos del I y II ciclo, del cantón de Corredores y su relación con la actitud profesional hacia el desarrollo institucional, durante el año 2003
(Universidad Nacional, Costa Rica, 2005-01)Debido a que es innegable y un hecho bien comprobado que cuando más alta sea la actitud profesional hacia el desarrollo institucional y el dinamismo que un director posee, mayor será el nivel de productividad ... -
Eficiencia y profundidad del sistema financiero costarricense y su efecto sobre el crecimiento económico
(Universidad Nacional, Costa Rica, 2020)La presente investigación aborda el tema de la eficiencia y profundidad financiera en Costa Rica, y su efecto en el crecimiento económico. La eficiencia define como la manera óptima de maximizar los recursos y servicios ... -
EFL learners preferences in the implementation of direct learning strategies in learning grammar : a case study of the grammar course II of the English Major at Universidad de Costa Rica, Golfito Site
(Universidad Nacional (Costa Rica). Escuela de Literatura y Ciencias del Lenguaje., 2013)Identifica las estrategias de aprendizaje directas empleadas por los estudiantes de segundo año matriculados en el Curso de Gramática II, de la Universidad de Costa Rica en el recinto de Golfito para aprender y usar la ...