A5008077636- Cultural Heritage Materials Analysis
- Conservation Techniques and Studies
- Building materials and conservation
- Occupational Health and Safety in Workplaces
- Economic and Social Development
- Analytical chemistry methods development
- Heavy metals in environment
- Educational theories and practices
- Geology and Paleoclimatology Research
- Pesticide Residue Analysis and Safety
- Air Quality and Health Impacts
- Conservation, Biodiversity, and Resource Management
- Environmental Toxicology and Ecotoxicology
- Mineralogy and Gemology Studies
- History and Politics in Latin America
- Glaucoma and retinal disorders
- Forensic Entomology and Diptera Studies
- Heavy Metal Exposure and Toxicity
- Criminal Justice and Penology
- Corneal Surgery and Treatments
- Essential Oils and Antimicrobial Activity
- Construction Project Management and Performance
- Contact Dermatitis and Allergies
- Geological formations and processes
- Geography and Education Methods
University of the Basque Country
2009-2022
Pedagogical and Technological University of Colombia
2016
Pontificia Universidad Católica de Chile
1999
Moolooite (copper oxalate), a very rare compound, was found as degradation product from the decay of malachite in several specimens Cultural Heritage studied. Computer simulations, based on heterogeneous chemical equilibria, support transformation to moolooite through intermediate copper basic sulfates or chlorides, depending presence available free sulfate chloride anions system. Raman and X-ray fluorescence spectral evidence during analysis three case studies investigated supported model...
Abstract The effects of the dry and wet acid deposition from both combustion greenhouse gases (mainly CO 2 , SO x NO ) can be observed in stones, mortars, bricks decorative materials used Built Heritage elements. Those phenomena have greater urban atmospheres, especially medium or highly polluted ones. Most products formed as a consequence decaying are alkaline alkaline‐earth oxoanions, which show, general, high Raman scattering. coupling experimental evidence (the detection some...
An important demand exists in the field of forensic analysis to objectively determine post-mortem interval (PMI) when human skeletal remains are discovered. It is widely known that bones undergo different chemical and physical processes after death, mainly due their interaction with environment which they found, although it not exactly what these consist of. Multiple techniques have been used so far follow up other changes thus establish time elapsed since individual's but present drawbacks...
In this work, virgin olive oil mixed with essential oils from rosemary has been analyzed by means of Raman spectroscopy. First all, experimental design employed in order to define the spectroscopy's parameters, final measuring conditions were: acquisition time 30 s, five accumulations, and intensity laser power at 75 mW. The spectra were initially measured full range (150–3000 cm −1 ), but a narrower window assured faster accumulations more accurate predictions. calibration solutions...
Technological evolution in pottery making is one of the knowledge transference evidence Islamic culture Iberian Peninsula. In this work, two sets samples from pre‐Islamic, Muslim and post‐Islamic (Mudejar) stages have been analysed order to study pottery‐making techniques. Micro‐Raman spectroscopy has used for thorough characterisation classification potsherds. support Raman‐provided information scanning electron microscope coupled with energy‐dispersive X‐ray microanalysis (SEM‐EDX)...
In this work was studied the CO2 carbon dioxide treatment, which is a pollutant gas and main cause of global warming. For aim, plasma generated, through dielectric barrier discharges DBD, using hydrogen H2 together with as reaction gases. There were used dielectrics, alumina quartz tubes identical geometry. It conversion in function mixture composition CO2+H2, electrical power operation frequency, for three different flows. all cases it achieved better levels alumina; because has relative...
Clean air is considered to be a basic requirement of human health and well-being. An increasing range adverse effects has been linked pollution, at ever-lower concentrations. This research shows the newly developed Structural Chemical Analyzer (SCA) successful combination Raman spectroscopy scanning electron microscope-energy dispersive X-rays that opens up new insight into composition particulate matter (PM). The results obtained with soil lichen samples demonstrate capability technique...
The mineral component of fish otoliths (ear bones), which is aragonitic calcium carbonate (CaCO3), makes this structure the preferred sample choice for measuring biological carbon and oxygen-stable isotopes in order to address fundamental questions ecology fisheries science. main drawback that removal requires sacrificing specimen, particularly impractical endangered commercially valuable species such as Atlantic bluefin tuna (Thunnus thynnus) (ABFT). This study explores suitability using...
Abstract Sixteen glazes on medieval (14th–16th century AD) pottery fragments from Vega workshop (Burgos, Spain) were characterized to investigate the production technology. To this end, Raman spectroscopy and scanning electron microscopy coupled with energy dispersive X‐ray (SEM‐EDX) used. The studied glaze samples correspond of high‐quality glazed ware used by wealthiest society in city Burgos. most representative types glazes, corresponding honey‐marble, honey‐yellow, bright light green,...