Farmers’ knowledge and perceptions of potato pests and their management in Uganda

As we initiate entomological research on potato (Solanum tuberosum L.) in Uganda, there is need to understand farmers’ knowledge of existing insect pest problems and their management practices. Such information is important for designing a suitable intervention and successful integrated pest management (IPM) strategy. A farm household survey using a structured questionnaire was conducted among 204 potato farmers in six districts of Uganda (i.e., Kabale, Kisoro, Mbale, Kapchorwa, Mubende, and Kyegegwa) during August and September 2013. Diseases, insect pests, price fluctuations, and low market prices were the four highest ranked constraints in potato production, in order of decreasing importance. Cutworms (Agrotis spp.), aphids (Myzus persicae (Sulzer)), and potato tuber moth (Phthorimaea operculella (Zeller)) were the three most severe insect pests. Ants (Dorylis orantalis Westwood), whiteflies (Bemisia tabaci (Gennadius)), and leafminer flies (Liriomyza huidobrensis (Blanchard)) were pests of moderate importance. Major yield losses are predominantly due to late blight (Phytophthora infestans (Mont.) de Bary) and reached 100% without chemical control in the districts of Kabale, Kisoro, Mbale, and Kapchorwa. On average, farmers had little to moderate knowledge about pest characteristics. The predominant control methods were use of fungicides (72% of respondents) and insecticides (62% of respondents). On average, only 5% of the 204 farmers knew about insect pests and their natural enemies. This lack of knowledge calls for training of both farmers and extension workers in insect pest identification, their biology, and control. Empowering farmers with knowledge about insect pests is essential for the reduction of pesticide misuse and uptake of more environmentally friendly approaches like IPM. Field surveys would need follow-up in order to assess the actual field infestation rates and intensities of each insect pest and compare the results with the responses received from farmers.

Modeling Stock Order Flows and Learning Market-Making from Data

Stock markets employ specialized traders, market-makers, designed to provide liquidity and volume to the market by constantly supplying both supply and demand. In this paper, we demonstrate a novel method for modeling the market as a dynamic system and a reinforcement learning algorithm that learns profitable market-making strategies when run on this model. The sequence of buys and sells for a particular stock, the order flow, we model as an Input-Output Hidden Markov Model fit to historical data. When combined with the dynamics of the order book, this creates a highly non-linear and difficult dynamic system. Our reinforcement learning algorithm, based on likelihood ratios, is run on this partially-observable environment. We demonstrate learning results for two separate real stocks.

English vocabulary teaching and learning strategies in Secondary Education

Resumen basado en el de la publicaci??n

Critical thinking as a self-regulatory process component in teaching and learning

Resumen tomado de la publicaci??n

Context constraints, prior vocabulary knowledge and on-line inferences in reading

Resumen tomado de la publicaci??n

Knowledge and question asking

Resumen tomado de la publicaci??n

Blackboard for teaching and learning

A slideshow and supporting handout used in a workshop that discusses how Blackboard can be used to effectively support student learning.

Session outline and learning outcomes - bed mobility

This resource is for Health Scientists

Session outline and learning outcomes - Hoists

This resource is for Health Scientist only

Online teaching and learning presentations September seminar 2013

Slides from presenters at the CITE seminar for staff

Metacognitive knowledge and self-regulation: A qualitative lecture of students functioning in writing

This research emerges from the world-wide problematic concerning student's failure. It particularly analyzes the meta-cognitive competences in the writing process of this population. Based on Flavell's (1992) viewpoint about meta-cognition and the socio-cognitive approach of self-regulation, two variables were measured: meta-cognitive knowledge and self-regulation strategies. A qualitative study was conducted on a sample of 12 French students at first year university. This study uses a specific technique of interview known as "explicitation interview". The data analysis included the categorization, codification and quantification of the information obtained with the interviews. In conclusion, even though the students had metacognitive knowledge related to the written tasks, they did not show strategies that could help to go beyond the descriptive modality of written discourses by taking into account the readers' expectations. Their writing processes focused on transcription of ideas with little control on the planning and revision phases.

The struggle to redefine the relationship between knowledge and action in the academy : some reflections on action research.

Resumen del autor. Este art??culo pertenece al monogr??fico 'John Elliott: su pensamiento y su influencia'

Teaching and learning vocabulary : an introduction for English students. 'Enseñar y aprender vocabulario : una introducción para estudiantes de inglés'.

Resumen basado en el del autor

Melancholy and power, knowledge and propaganda : discussing the contribution of the bologna process to higher education research in Europe. 'Melancolía y poder, conocimiento y propaganda : discutiendo la contribución del proceso de Bolonia sobre la investigación en enseñanza superior en Europa'.

Resumen tomado de la publicación. Monográfico con el título: El proceso de Bolonia : dinámicas y desafíos de la enseñanza superior en Europa a comienzos de una nueva época

Just for fun! and learning! : aprender no tiene que ser aburrido : aplicaciones de técnicas de dramatización en las clases de inglés.

Experiencia pedagógica sobre técnicas de dramatización en el aula desarrollada en el IES San Juan Bautista con el fin de mejorar la motivación, participación y aprendizaje del inglés. El artículo presenta distintas actividades clasificadas según su finalidad y el área gramatical, que no necesitan mucha preparación previa y su duración no excede de los quince minutos. Estas son, las actividades de 'icebreakers', las de vocabulario y las actividades con estructuras gramaticales.