Prof. Luis Bermejo
University of La Laguna, Spain
+1
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Academic Career Length
18Years (2009-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications8 February 2016 in Cartography and Geographic Information Science
Journal Article
Carlos Carbonell-CarreraLuis BermejoDigital three-dimensional (3D) cartography environments provide new ways of landscape visualization and topographic interpretation: digital terrain modeling (DTM) is added to the traditional cartographic technique, where relief interpretation skill is needed to interpret 3D topographic information from 2D representations. The emergence of augmented reality (AR) technology for DTM representation offers a new way to develop map-reading skills. It is in the representation of the landforms (hills, dunes, depths, valleys, mountains, shapes, slopes, and elevations) where the AR allows a new way to interact with the landscape representation. Once AR technology is combined with tablet computers, the manipulation of DTM can be done by finger gestures. This paper analyzes the potential of AR as an innovative teaching tool to improve relief interpretation skill based on the results of a workshop with 73 engineering students from La Laguna University, Spain. Participants performed exercises with 2D traditional techniques of relief representation and with AR. To compare the effect with and without AR, another group of 22 students conducted the workshop with only 2D relief representations. The gain was significantly better with the AR group; students who did not use AR had also a significantly better result, but their scores were still lower.
24 November 2016 in Journal of Geography in Higher Education
Journal Article
Carlos Carbonell-CarreraLuis BermejoLandscape interpretation is needed for navigating and determining an orientation: with traditional cartography, interpreting 3D topographic information from 2D landform representations to get self-location requires spatial orientation skill. Augmented reality technology allows a new way to interact with 3D landscape representation and thereby facilitate the orientation of oneself in respect to the environment to determine goal location. This paper analyses if AR spatial landform improves the learner’s spatial orientation skill measured with the perspective taking/spatial orientation test by paired sampled t-tests. A workshop was conducted with 123 university students (63 treatment group, 60 control group) in which students had to identify locations and routes based on the interpretation of the relief, represented by AR. Results of the workshop showed an improvement in spatial orientation skill of 20.14 degrees average gain in the treatment group. Students who were not subject to the workshop (control group) did not improve their spatial orientation skill. The possibility of using free AR three-dimensional applications and exploit the potential of tablets and smart phones, which are widespread today, makes it possible to design and implement strategies for the development of spatial skills in formal teaching in the scope of Geography in higher education.
7 June 2016 in Scientific Reports
Journal Article
AMA. Manunza
A. Manunza
TCTaina Cardoso
Taina CardosoANA. Noce
A. Noce
AMAmparo M Martinez
Amparo M MartinezAPA. Pons
A. Pons
MAMarcel Amills
Marcel Amills +12
The goals of the current work were to analyse the population structure of 11 Spanish ovine breeds and to detect genomic regions that may have been targeted by selection. A total of 141 individuals were genotyped with the Infinium 50 K Ovine SNP BeadChip (Illumina). We combined this dataset with Spanish ovine data previously reported by the International Sheep Genomics Consortium (N = 229). Multidimensional scaling and Admixture analyses revealed that Canaria de Pelo and, to a lesser extent, Roja Mallorquina, Latxa and Churra are clearly differentiated populations, while the remaining seven breeds (Ojalada, Castellana, Gallega, Xisqueta, Ripollesa, Rasa Aragonesa and Segureña) share a similar genetic background. Performance of a genome scan with BayeScan and hapFLK allowed us identifying three genomic regions that are consistently detected with both methods i.e. Oar3 (150–154 Mb), Oar6 (4–49 Mb) and Oar13 (68–74 Mb). Neighbor-joining trees based on polymorphisms mapping to these three selective sweeps did not show a clustering of breeds according to their predominant productive specialization (except the local tree based on Oar13 SNPs). Such cryptic signatures of selection have been also found in the bovine genome, posing a considerable challenge to understand the biological consequences of artificial selection.
16 January 2017 in International Journal of Biometeorology
Journal Article
WSWilma Emanuela da Silva
Wilma Emanuela da SilvaJLJacinara Hody Gurgel Morais Leite
Jacinara Hody Gurgel Morais Leite
JSJosé Ernandes Rufino de Sousa
José Ernandes Rufino de Sousa
WCWirton Peixoto Costa
Wirton Peixoto Costa
WSWallace Sostene Tavares da Silva
Wallace Sostene Tavares da Silva
DFDébora Andréa Evangelista Façanha
Débora Andréa Evangelista Façanha
+2
Journal Article
JLJosé Lobillo-Eguíbar
José Lobillo-Eguíbar
Víctor M. Fernández-CabanásLuis Bermejo
Luis Pérez-UrrestarazuAquaponics involves the simultaneous production of plants and fish and it is increasingly being used with a self-consumption purpose. However, there are uncertainties and little information about the economic sustainability of small-scale self-managed aquaponic systems. The objective of this study was to obtain economic information about these systems, including the level of commoditization of food production as a measure of their autonomy. For this purpose, two small-scale aquaponic systems (SAS) based on FAO models were self-constructed using cheap and easy-to-obtain materials and monitored for a year. A total of 62 kg of tilapia and 352 kg of 22 different vegetables and fruits were produced, with an average net agricultural added value of 151.3 €. Results showed positive accounting profit but negative economic profit when labor costs were included. The degree of commoditization was around 44%, which allows a certain autonomy, thanks to the use of family labor force.
1 August 2009 in Agriculture, Ecosystems & Environment
Journal Article
SFS. Fernández-Lugo
S. Fernández-Lugo
LNL. de Nascimento
L. de NascimentoMMMiguel Mellado Mellado
Miguel Mellado MelladoLuis Bermejo
José Ramón ArévaloAbout Me
I have over 20 years of experience in most of the activities related to rural areas and environment, ranging from planning and analysis of activities to rural development project implementation. I have led multidisciplinary teams with agronomists, veterinaries, sociologists, economists, geographers and others. Moreover, I have a wide experience in statistical analysis: mainly multivariate analysis and analysis of variance (conventional and permutational), which I have used not only for analysis but also for modeling. In addition, most of these activities have included geographical analysis (GIS) and participatory tools in order to include stakeholders in planning process (participatory rural appraisal). I have a wide experience in logical framework approach methodology and multicriteria analysis.
My most important skills are analysis, planning, decision-making and communication and team management. These activities have been the common denominator in all the projects I have been involved in, irrespective of the project matter. The four main fields of action that I have developed during my career have been strategic and land planning, strategic environmental assessment, rural development and training and teaching, I have carried out rural development project in Mauritania, Mexico and Guatemala. Currently, I am a professor of animal production in University of La Laguna (Spain) and adjunct of Haub School of environment and Natural Resources (University of Wyoming, UEA).