Papers by Martin Gómez Vega
European Journal of Hospital Pharmacy: Science and Practice, 2013
Resumen: En este trabajo se muestra una solución optimizada al diseño mecánico de una montura, ... more Resumen: En este trabajo se muestra una solución optimizada al diseño mecánico de una montura, partiendo de condiciones termo-elásticas determinadas. Se compararon algunas de las monturas ópticas usadas comúnmente para espejos en instrumentación astrofísica, y se realizó un análisis en elementos finitos para obtener el perfil deformado de los espejos en cada uno de los montajes. Una vez obtenido el perfil de los espejos se reconstruyó, a partir de polinomios de Zernike, las aberraciones del frente de onda asociadas a cada polinomio. Se seleccionó la montura en la cual los coeficientes de cada polinomio minimizaban las aberraciones.
SPIE Proceedings, 2014
Toy models for the Arabidopsis Thaliana flower and the Drosophila are analyzed using Microsoft SM... more Toy models for the Arabidopsis Thaliana flower and the Drosophila are analyzed using Microsoft SMT-Solver Z3 with the SMT-LIB language. The models are formulated as Boolean networks which describe the metabolic cycles for Arabidopsis and Drosophila. The dynamic activation of the different bio macromolecules is described by the variables and laws of Boolean transition. Specifically, bitvectors and assertions, which describe the change of state of bitvectors from a sampling time to the next, are used. The dynamic feasibility problem of the biological network is translated to a Boolean satisfiability problem. The corresponding dynamic attractors are represented as a model of satisfiability. The Z3 software allows all required computations in a friendly and efficient manner. It is expected that the SMT-solvers, such as Z3, will become a routine tool in system biology and that they will provide bio-nanosystem design techniques. As a line for future research, the study of the models for Arabidopsis and Drosophila using different SMT-solvers such as CVC4, Mathsat and Yices, is proposed.
Sensing for Agriculture and Food Quality and Safety VI, 2014
A food freezing model is analyzed analytically. The model is based on the heat diffusion equation... more A food freezing model is analyzed analytically. The model is based on the heat diffusion equation in the case of cylindrical shaped food frozen by liquid nitrogen; and assuming that the thermal conductivity of the cylindrical food is radially modulated. The model is solved using the Laplace transform method, the Bromwich theorem, and the residue theorem. The temperature profile in the cylindrical food is presented as an infinite series of special functions. All the required computations are performed with computer algebra software, specifically Maple. Using the numeric values of the thermal and geometric parameters for the cylindrical food, as well as the thermal parameters of the liquid nitrogen freezing system, the temporal evolution of the temperature in different regions in the interior of the cylindrical food is presented both analytically and graphically. The duration of the liquid nitrogen freezing process to achieve the specified effect on the cylindrical food is computed. The analytical results are expected to be of importance in food engineering and cooking engineering. As a future research line, the formulation and solution of freezing models with thermal memory is proposed.
Sensing Technologies for Global Health, Military Medicine, and Environmental Monitoring IV, 2014
Computational Algebraic Geometry is applied to the analysis of various epidemic models for Schist... more Computational Algebraic Geometry is applied to the analysis of various epidemic models for Schistosomiasis and Dengue, both, for the case without control measures and for the case where control measures are applied. The models were analyzed using the mathematical software Maple. Explicitly the analysis is performed using Groebner basis, Hilbert dimension and Hilbert polynomials. These computational tools are included automatically in Maple. Each of these models is represented by a system of ordinary differential equations, and for each model the basic reproductive number (R0) is calculated. The effects of the control measures are observed by the changes in the algebraic structure of R0, the changes in Groebner basis, the changes in Hilbert dimension, and the changes in Hilbert polynomials. It is hoped that the results obtained in this paper become of importance for designing control measures against the epidemic diseases described. For future researches it is proposed the use of algebraic epidemiology to analyze models for airborne and waterborne diseases.
European Journal of Hospital Pharmacy: Science and Practice, 2014
Background Errors in prescribing antiretroviral treatment (ART) are common during the hospitalisa... more Background Errors in prescribing antiretroviral treatment (ART) are common during the hospitalisation of HIV patients. Interventions to prevent and correct errors improve the quality of health care. Purpose To describe the pharmaceutical interventions made during the hospitalisation period in HIV patients in the validation phase of antiretroviral treatment (ART) in a tertiary hospital. Materials and methods Between 1st September 2012 and 31st March 2013 a prospective study was conducted, in which we validated the ART prescribed with the Assisted Electronic Prescription (AEP) program during the first 24 h of the HIV patients’ hospitalisation. Patients receiving specialised pharmaceutical care in our hospital’s outpatient dispensing service and also patients from other centres were included. Medicines reconciliation of the HIV patients coming from our centre was performed using the ambulatory AEP program by the clinical pharmacist within 24 h of admission, while the ART of the remaining patients was self-reported. The pharmaceutical interventions were classified as: omission, incorrect dose, incorrect scheduling and drug interaction. Results Sixty-five patients were included, 49 (75%) receiving specialised pharmaceutical care in the outpatient dispensing service of our hospital and 16 (25%) proceeding from other hospitals. Pharmaceutical interventions were recorded in 22 patients. In 16 patients from our centre (32%) a pharmaceutical intervention was required: 4 cases of omission, 6 cases of incorrect dose, 3 cases of incorrect scheduling and 5 drug interactions. Six patients from the other centres (37.5%) needed a pharmaceutical intervention: 2 cases of incorrect dose and 4 drug interactions. The rate of physician acceptance of the interventions was 90%. Conclusions Prescription errors at the ART in HIV hospitalised patients were common during the first 24 h. The most common errors involved were incorrect dose. The pharmaceutical interventions had high rates of acceptance. No conflict of interest.
Value in Health, 2010
A331 ventilated with a median SOFA score = 6. The median cumulated time dedicated to one patient ... more A331 ventilated with a median SOFA score = 6. The median cumulated time dedicated to one patient by physicians, nurses and caregivers was 10h20 over the 24-hour period (1h15 by physician, 6h08 by nurses and 2h57 by caregivers). CONCLUSIONS: The median time of more than 10 hours directly dedicated to a patient is a key information for the estimation of the real cost of one day stay in ICU
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Papers by Martin Gómez Vega