Search results for "Sources"
showing 10 items of 2554 documents
Toxic cyanobacterial blooms in reservoirs under a semiarid Mediterranean climate: the magnification of a problem
2007
Sicilian reservoirs constitute the most important water resources available on the island. During summer 2001, the intense water utilization of Lake Arancio reservoir reduced the water level significantly. This coincided with the formation of intense blooms formed by the microcystin-producing cyanobacterium Microcystis aeruginosa. During summer 2003, Lake Arancio was continuously filled and the vertical stratification of the water column was maintained, resulting in 5-6 fold lower cell numbers of Microcystis aeruginosa. For both years a significant linear relationship between microcystin net production and Microcysytis cell division was observed, implying that Microcystis cell numbers can b…
Impact of Initial Soil Temperature Derived from Remote Sensing and Numerical Weather Prediction Datasets on the Simulation of Extreme Heat Events
2016
Extreme heat weather events have received increasing attention and has become of special importance as they can remarkably affect sectors as diverse as public health, energy consumption, water resources, natural biodiversity and agricultural production. In this regard, summer temperatures have become a parameter of essential interest under a framework of a hypothetical increase in the number of intense-heat conditions. Thus, their forecast is a crucial aspect bearing in mind a mitigation of the effects and impacts that these intense-heat situations could produce. The current work tries to reach a better understanding of these sorts of situations that are really common over the Western Medit…
PEDAGOGICAL PROCESS FACILITATING PHYSICAL ACTIVITY OF PRE-SCHOOLERS
2019
The research covers analysis of theoretical literature on significance of physical activities in the development of child’s integrity, as it is a well-known fact that child is researcher and his/her activity is manifested through movement. Child gets his first impressions about surrounding world through movement – the more diverse motions are, the more information is acquired, and the more intense is intellectual development thereof. However, quite often pedagogical process does not consider the specific factors facilitating capacity of child’s physical, functional, motion and mental development. To conduct the research, an aim was set to study physical activity of children in pre-school an…
Skill-Based Scouting of Open Management Content
2010
Already existing open educational resources in management have a high potential for enterprises to address the increasing training needs of their employees. However, access barriers still prevent the full exploitation of this potential. Users have to search a number of repositories with heterogeneous interfaces in order to retrieve the desired content. In addition, the use of search criteria related to skills, such as learning objectives and skill-levels is in most cases not supported. The demonstrator presented in this paper addresses these shortcomings by federating multiple repositories, integrating and enriching their metadata, and employing skill-based search for management related con…
Photography as a historical source in the classroom. Assessment of a methodology for teaching History in Higher Education
2020
El presente artículo analiza una metodología activa centrada en el uso de fuentes históricas, en este caso la fotografía, para la enseñanza de la Historia en la Educación Superior. La propuesta analizada se llevó a cabo en la asignatura Didáctica de las Ciencias Sociales: Historia del Grado de Maestro en Educación Primaria de la Universidad de Alicante. Los datos obtenidos han sido tratados de forma cualitativa y han permitido conocer, además, la percepción del alumnado ante una nueva manera de trabajar contenidos históricos. Los resultados obtenidos confirman que la metodología que utiliza de forma adecuada la fotografía como fuente histórica incentiva el análisis y la reflexión sobre los …
Some Implications for Developing Learners’ Figurative Language Competence Across Modalities: Metaphor, Metonymy and Blending in the Picture Modality
2014
The paper argues for developing learners’ figurative language competence across modalities. Specifically, focusing on the picture modality, the article attempts to show the importance of figurative thinking in the new media age multimodal communication. The sample analysis of pictures and images representing the recent issue of the EU crisis addresses the significance of three conceptual phenomena, namely, metaphor, metonymy, and blending, in the conceptualization of such a highly abstract phenomenon. In general, it is argued that language users almost invariably turn to figurative language resources to conceptualize abstract phenomena that cannot be conceptualized by means of literal langu…
From Microorganism-Based Amperometric Biosensors towards Microbial Fuel Cells
2021
This review focuses on the overview of microbial amperometric biosensors and microbial biofuel cells (MFC) and shows how very similar principles are applied for the design of both types of these bioelectronics-based devices. Most microorganism-based amperometric biosensors show poor specificity, but this drawback can be exploited in the design of microbial biofuel cells because this enables them to consume wider range of chemical fuels. The efficiency of the charge transfer is among the most challenging and critical issues during the development of any kind of biofuel cell. In most cases, particular redox mediators and nanomaterials are applied for the facilitation of charge transfer from a…
Possibility of Wastewater Treatment Using MFC with Ni-Co Catalyst of Fuel Electrode
2016
Abstract One of the problems with microbial fuel cells is a low current density of those energy sources. Nonetheless, it is possible to increase the current density by using the catalyst for fuel electrode (anode) - as long as a low cost catalyst can be found. The possibility of wastewater treatment using the Ni-Co alloy as catalyst for MFC’s is presented in this paper. The alloys were obtained with different concentrations of Co (15 and 50% of Co). The increase of current density with Ni-Co catalyst is approximately 0,1 mA/cm2. So, a fundamental possibility wastewater treatment using the Ni-Co alloy as catalyst for microbial fuel cells was presented.
Validación y verificación analítica de los métodos microbiológicos
2015
Clinical microbiologists should ensure, to the maximum level allowed by the scientific and technical development, the reliability of the results. This implies that, in addition to meeting the technical criteria to ensure their validity, they must be performed with a number of conditions that allows comparable results to be obtained, regardless of the laboratory that performs the test. In this sense, the use of recognized and accepted reference methodsis the most effective tool for these guarantees. The activities related to verification and validation of analytical methods has become very important, as there is continuous development, as well as updating techniques and increasingly complex …
Zinc oxide and indium tin oxide thin films for the growth and characterization ofShewanella loihicaPV-4 electroactive biofilms
2011
Transition metal oxides (TMO) electrodes provide a suitable platform for spectroscopy- and microscopy-based investigation of viable electroactive biofilms (EABs). Commercially available TMOs, such as indium titanium oxide (ITO), are produced from rare and expensive elements. Thus, there is a significant need to explore alternative technology to meet the demand. ZnO-based TMOs are low-cost and have excellent electrochemical properties. In this study, we report for the first time a model EAB of Shewanella loihica PV-4 on ZnO films deposited on perspex substrates via pulsed laser deposition (PLD). Commercially available ITO electrodes were also used for comparison. 480 Virulence Volume 2 Issue…