Fíbulas de La Tène en el poblado de La Custodia, Viana (Navarra)

En este artículo se analizan y estudian cincuenta fíbulas de bronce recuperadas en el poblado prerromano de La Custodia (Viana, Navarra). Entre ellas hay ejemplos de diversos tipos, que pueden encuadrarse dentro del grupo de La Téne

Multi-monitorização de estufa agrícola

A agricultura tem recorrido, tradicionalmente, a métodos empíricos que não rentabilizavam a produção e estava fortemente dependente das condições meteorológicas. Para melhorar a produção agrícola, surgiram as estufas agrícolas que permitem culturas de elevado valor acrescentado. Estas permitem também a elaboração de estudos de conceitos de causa-efeito, que possibilitam a construção de modelos e sistemas para melhorar a produção e a qualidade de determinada colheita. Com base nesta realidade, este artigo apresenta e descreve um trabalho que se encontra em fase de desenvolvimento por investigadores de duas escolas do Instituto Politécnico de Castelo Branco (IPCB) e que visa o desenvolvimento de um sistema para monitorização de uma estufa agrícola situada na Escola Superior Agrária (ESA) daquele Instituto

Innovative PLF Tool to Assess Growing-Finishing Pigs’ Welfare

The main goal of the AWARTECH project (Animal Welfare Adjusted Real Time Envi ronmental Conditions of Housing) was to develop an innovative precision livestock tool that will support and reinforce the pig value chain, through the management of solutions based on monitoring, analysis and control of environmental, physiological, behaviour and animal performances parameters. Environmental data was collected by sensors of temperature, relative humidity, air velocity and gas concentration, which are integrated in an environmental control system (Webisense) and in a platform (Nidus). Webisense controlled the ventilation system, the cooling system and the heating system. The rectal and body surface temperatures were registered manual and automatically. In order to monitor the behaviour of the animals, video cameras were installed. An individual feeding machine equipped with a scale has been also installed. This equipment allow, through an RFID system, the individual monitoring and control of the amount of food supplied and ingested; the number and duration of visits; and the animal’s weight. The development of the AWARTECH platform resulted from the integration of data provided by Webisense, Nidus, feeding machine and video analytics as well as physiological data. This platform allows the control the environmental conditions based on welfare indicators promoting animal welfare

La concepción simple de la lectura en educación primaria: una revisión sistemática

La concepción simple de la lectura (CSL) es un modelo que trata de explicar la comprensión lectora (L) a partir de dos componentes básicos: la descodificación (D) y la comprensión del lenguaje (C). En los últimos años este modelo ha sido utilizado como base teórica para la toma de decisiones sobre el aprendizaje de la lectura en el sistema educativo de países como Reino Unido o Francia. La CSL ha sido criticada por distintos motivos. El primero, y más importante, es que D y C dejan sin explicar una parte importante de la varianza de los resultados de L. Esta parte podría ser del 50% o más, lo que indicaría que el modelo es incompleto y existe la posibilidad de que personas con una descodificación y comprensión del lenguaje normales obtengan malos resultados en comprensión lectora. También se ha señalado que los componentes del modelo están vagamente definidos, especialmente C, y que distintos autores los evalúan de formas diferentes. Otras críticas son que la relación entre sus componentes cambia con la edad y que no ha inspirado intervenciones pedagógicas de consideración. A pesar de estas observaciones, se considera que la CSL puede ser útil en educación ya que tiene características poco habituales en los modelos de comprensión lectora como su carácter evolutivo, el énfasis en la descodificación y su sencillez.The simple view of reading (SVR) is a model to explain reading comprehension (R) using two basic components: decoding (D) and language comprehension (C). In recent years this model has been employed as a theoretical base for decision making in the education system in countries such as United Kingdom or France. The SVR has been criticized for several reasons. The first, and most important, is that D and C cannot explain a substantial part of the variance of R results. This unexplained part could be 50% or even higher, which could mean that the model is not complete and that there is a possibility that people with normal decodification and language comprehension skills could perform badly in reading comprehension tasks. It has also been pointed out that the components of the model are loosely defined, particularly C, and that different researchers evaluate those components in different ways. Other criticisms are that the relation between the components of the model changes with age, and that it has not produced any relevant pedagogical interventions. In spite of these points, the SVR can be useful in educational work. It has some characteristics that are unusual in reading comprehension models: it is evolutionary, it places emphasis on decoding, and it is an easy to understand model

Greenhouse watching system using multi-technologies

Traditional agriculture uses empiric methods and is very exposed to meteorological conditions. To increase the agriculture production, greenhouses had appeared to allow crops with higher quality. Greenhouses also permit the study of cause-effect concepts that by them allow building models that improve the crop’s production and quality. Based on this reality, this paper presents a system developed by researchers of two schools of the Instituto Politécnico of Castelo Branco(IPCB) to monitor a greenhouse located in the campus of Escola Superior Agrária (ESA). This proposed system uses several different technologies

Mild And Moderate Extraction Methods To Assess Potentially Available Soil Organic Nitrogen

The use of chemical methods to assess the soil organic nitrogen (N) potentially available to plants is not a common practice in Brazil. However, associated with others, this tool might improve efficiency in the use of waste and nitrogen fertilizers. In our study, chemical methods were tested to assess potentially available soil N in samples of 17 representative soils of the western plateau of the state of São Paulo (10 Oxisols and 7 Ultisols). Available soil N was extracted from the collected soil samples using moderate (ISNT-Illinois Soil Nitrogen Test) and mild (hot water and heated solutions of 2 mol L-1 KCl and 0.01 mol L-1 CaCl2) extraction methods. The levels of potentially available N obtained from these chemical methods were correlated with dry matter (DM) and N uptake (Nup) by corn plants grown in pots in a greenhouse experiment carried out with the same 17 soil samples. The ISNT method showed the highest available N extraction capacity, whereas hot water showed the lowest capacity, followed closely by the hot 0.01 mol L-1 CaCl2 solution. Despite the differences among the quantities of available N extracted, the methods correlated with each other and with DM and Nup, but the values from the ISNT method showed the lowest correlation with plant variables (rDM = 0.67** and rNup = 0.81**). Procedures of extraction with water or 0.01 mol L-1 CaCl2 heated for 16 h, and 2 mol L-1 KCl heated for 4 h, resulted in similar correlation values (r) with plant DM and Nup. Thus, water (rDM = 0.77** and rNup = 0.90**) and 0.01 mol L-1 CaCl2 (rDM = 0.82** and rNup = 0.93**) heated for 16 h can be recommended as the best options for N extraction. considering the possibility for predicting N availability, lower generation of waste, and lower cost of analysis. © 2016, Revista Brasileira de Ciencia do Solo. All rights reserved.4

A More Flavored Higgs boson in Supersymmetric models

A More flavored Higgs boson arises when the flavor structure encoded in SUSY extensions of the SM is transmited to the Higgs sector. The flavor-Higgs transmition mechanism can have a radiative or mixing origin, as it is illustrated with several examples, and can produce interesting Higgs signatures that can be probed at future high-energy colliders. Within the MSSM, the flavor mediation mechanism can be of radiative type, as it is realized trhough gaugino-slepton loops, which transmit the flavor structture of the soft-breaking sector to the Higgs bosons. In particular we focus on evaluating the contributions from the general trilinear terms to the lepton flavor violating Higgs (LFV) vertices. On the other hand, as an example of flavor mediation through mixing, we discuss an E_6 inspired multi-Higgs model, with an abelian flavor symmetry, where LFV as well as lepton flavor conserving Higgs effects are found to arise, though in this case at tree-level. We find that Tevatron and LHC can provide information on the flavor structure of these models through the detection of the LFV higgs mode h-> tau+mu, while NLC can perform high-precision measurements of the LFC mode h-> tau tau.Comment: 17 pages, 5 tables, 3 figures; corrected mistake in last section, results changed but conclusions remmai