55 research outputs found
Auditor automático para nivel 3 del CMMI‐SW
El estándar Capability Maturity Model Integration (CMMI) ofrece un modelo organizativo a las empresas que les permite mejorar su estructura y organización. Para ello se recogen una serie de evidencias, las cuales se evalúan según el nivel de madurez que se quiera conseguir en un proceso de auditoría aplicado a la empresa que es objeto de estudio. El resultado son una serie de recomendaciones para que la empresa pueda adoptar y trabajar de forma más adecuada en el nivel objetivo. El proyecto presentado en esta memoria consiste en el desarrollo de un sistema para auditar el cumplimiento de CMMI‐ SW nivel 3. El sistema permite recoger evidencias, ayuda al auditor en su
evaluación, y genera un informe sobre la auditoría y sus resultados. El sistema ha sido probado en el GRupo de investigación en Agentes Software – Ingeniería y Aplicaciones (GRASIA), perteneciente a la Facultad de Informática de la Universidad Complutense de Madrid
Science and technology parks : measuring their contribution to society through social accounting
Science and Technology Parks (STPs) have made a positive contribution to regional development in the last decades. In general, the assessment of their level of performance has been based on two major variables: number of new companies and number of new jobs created. In this paper we propose the use of social accounting to measure the social value (SV) generated by STPs as an additional tool to assess the level of contribution of STPs to social development. Social accounting could be of interest for policy makers and regional governments in order to evaluate regional STPs and their social performance. In addition, in this paper we present an innovative methodology for calculating SV. Instead of using primary data to calculate SV (through interviews or consultations with individual stakeholders), we propose the use of secondary data available in open databases to measure SV. In this way, the measurement of SV for a large number of individual organizations can be achieved using a limited amount of resources. In this line, and as a seminal implementation of this methodology, we calculate the SV generated by four STPs in two different regions and countries belonging to the European Union using secondary data. Thus, the main contribution of the paper is twofold: on one hand it proposes social accounting to assess the performance of STPs through the calculation of SV, and on the other hand it implements a new methodology to calculate SV which requires the use of a lesser number of resources
Rivière or Fleuve? Modelling Multilinguality in the Hydrographical
The need for interoperability among geospatial resources in different natural languages evidences the difficulties to cope with domain representations highly dependent of the culture in which they have been conceived. In this paper we characterize the problem of representing cultural discrepancies in ontologies. We argue that such differences can be accounted for at the ontology terminological layer by means of external elaborated models of linguistic information associated to ontologies. With the aim of showing how external models can cater for cultural discrepancies, we compare two versions of an ontology of the hydrographical domain: hydrOntology. The first version makes use of the labeling system supported by RDF(S) and OWL to include multilingual linguistic information in the ontology. The second version relies on the Linguistic Information Repository model (LIR) to associate structured multilingual information to ontology concepts. In this paper we propose an extension to the LIR to better capture linguistic and cultural specificities within and across language
Elucidating the role of shape anisotropy infaceted magnetic nanoparticles using biogenicmagnetosomes as a model
Shape anisotropy is of primary importance to understand the magnetic behavior of nanoparticles, but a rigorous analysis in polyhedral morphologies is missing. In this work, a model based on finite element techniques has been developed to calculate the shape anisotropy energy landscape for cubic, octahedral, and truncated-octahedral morphologies. In all cases, a cubic shape anisotropy is found that evolves to quasi-uniaxial anisotropy when the nanoparticle is elongated >= 2%. This model is tested on magnetosomes, similar to 45 nm truncated octahedral magnetite nanoparticles forming a chain inside Magnetospirillum gryphiswaldense MSR-1 bacteria. This chain presents a slightly bent helical configuration due to a 20 degrees tilting of the magnetic moment of each magnetosome out of chain axis. Electron cryotomography images reveal that these magnetosomes are not ideal truncated-octahedrons but present approximate to 7.5% extrusion of one of the {001} square faces and approximate to 10% extrusion of an adjacent {111} hexagonal face. Our model shows that this deformation gives rise to a quasi-uniaxial shape anisotropy, a result of the combination of a uniaxial (Ksh-u = 7 kJm(-3)) and a cubic (Ksh-c = 1.5 kJ m(-3)) contribution, which is responsible for the 20 degrees tilting of the magnetic moment. Finally, our results have allowed us to accurately reproduce, within the framework of the Landau-Lifshitz-Gilbert model, the experimental AC loops measured for these magnetotactic bacteria.Spanish Government is acknowledged for funding under the project number MAT2017-83631-C3. Basque Government is acknowledged for funding under the project number IT124519. HRTEM images were obtained in the Laboratorio de Microscopias Avanzadas at Instituto de Nanociencia de Aragon -Universidad de Zaragoza (LMA-INA). Authors acknowledge the LMA-INA for offering access to their instruments and expertise. Authors thank Prof. J. A. Garcia and I. Rodrigo for providing AC hysteresis loops
Tuning the Magnetic Response of Magnetospirillum magneticum by Changing the Culture Medium: A Straightforward Approach to Improve Their Hyperthermia Efficiency
Magnetotactic bacteria Magnetospirillum magneticum AMB-1 have been cultured using three different media: magnetic spirillum growth medium with Wolfe’s mineral solution (MSGM + W), magnetic spirillum growth medium without Wolfe’s mineral solution (MSGM – W), and flask standard medium (FSM). The influence of the culture medium on the structural, morphological, and magnetic characteristics of the magnetosome chains biosynthesized by these bacteria has been investigated by using transmission electron microscopy, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism. All bacteria exhibit similar average size for magnetosomes, 40–45 nm, but FSM bacteria present slightly longer subchains. In MSGM + W bacteria, Co2+ ions present in the medium substitute Fe2+ ions in octahedral positions with a total Co doping around 4–5%. In addition, the magnetic response of these bacteria has been thoroughly studied as functions of both the temperature and the applied magnetic field. While MSGM – W and FSM bacteria exhibit similar magnetic behavior, in the case of MSGM + W, the incorporation of the Co ions affects the magnetic response, in particular suppressing the Verwey (∼105 K) and low temperature (∼40 K) transitions and increasing the coercivity and remanence. Moreover, simulations based on a Stoner–Wolhfarth model have allowed us to reproduce the experimentally obtained magnetization versus magnetic field loops, revealing clear changes in different anisotropy contributions for these bacteria depending on the employed culture medium. Finally, we have related how these magnetic changes affect their heating efficiency by using AC magnetometric measurements. The obtained AC hysteresis loops, measured with an AC magnetic field amplitude of up to 90 mT and a frequency, f, of 149 kHz, reveal the influence of the culture medium on the heating properties of these bacteria: below 35 mT, MSGM – W bacteria are the best heating mediators, but above 60 mT, FSM and MSGM + W bacteria give the best heating results, reaching a maximum heating efficiency or specific absorption rate (SAR) of SAR/f ≈ 12 W g–1 kHz–1.This work was supported by the Spanish MICINN/AEI/10.13039/501100011033 under Projects MAT2017-83631-C3-R and PID2020-115704RB-C3, the Basque Government under projects IT-1479-22 and IT-1500-22, and the BBVA Foundation under the Leonardo Fellowships for Researchers and Cultural Creators 2022. We thank the Helmholtz-Zentrum Berlin für Materialien und Energie for the allocation of synchrotron radiation beamtime and the support of the project CALIPSOplus under the Grant Agreement 730872 from the EU Framework Programme for Research and Innovation HORIZON 2020. We thank the “Nanotechnology in translational hyperthermia” Network (RED2018-102626-T) funded by MCIN/AEI/10.13039/501100011033. Finally, we also thank A. Tato for her help in TEM and hysteresis loops measurements, R. Andrade and J.C. Raposo for technical and human support provided by SGIker (UPV/EHU/FEDER, EU), and A. García Prieto for her helpful comments and continuous support
Preclinical and Clinical Assessment of Cannabinoids as Anti-Cancer Agents
Cancer is the second leading cause of death in the United States with 1.7 million
new cases estimated to be diagnosed in 2016. This disease remains a formidable
clinical challenge and represents a substantial financial burden to the US health care
system. Therefore, research and development of novel therapeutics for the treatment
of cancer is of high priority. Cannabinoids and their derivatives have been utilized for
their medicinal and therapeutic properties throughout history. Cannabinoid activity is
regulated by the endocannabinoid system (ECS), which is comprised of cannabinoid
receptors, transporters, and enzymes involved in cannabinoid synthesis and breakdown.
More recently, cannabinoids have gained special attention for their role in cancer cell
proliferation and death. However, many studies investigated these effects using in vitro
models which may not adequately mimic tumor growth and metastasis. As such, this
article aims to review study results which evaluated effects of cannabinoids from plant,
synthetic and endogenous origins on cancer development in preclinical animal models
and to examine the current standing of cannabinoids that are being tested in human
cancer patients
Prevalence of Tobacco Consumption Among Working Population after the Law 42/2010, Spain
Fundamentos: El objetivo del presente trabajo consistió en analizar el impacto sobre el consumo de tabaco en población trabajadora de la Ley 42/2010 que modifica la normativa antitabaco en España.
Métodos: Se obtuvieron datos de 413.473 reconocimientos médicos de Salud Laboral, realizados entre julio de 2009 y junio de 2011, en la Sociedad de Prevención de una Mutua de Accidentes de Trabajo y Enfermedades Profesionales de la Seguridad Social. Se analizó la evolución semestral del porcentaje de fumadores y la magnitud del consumo de tabaco en el total de reconocimientos, segmentando por sexo, edad, nivel ocupacional (trabajos manuales vs. no manuales) y en el subgrupo específico de camareros, bármanes y asimilados (test de chi2)
Resultados: En el total de reconocimientos, el porcentaje de fumadores descendió un 5% (del 40,3% al 35,3%) a lo largo del periodo de estudio (p<0,001) y el grupo de fumadores con menor consumo diario (≤10 cigarrillos) se convirtió en el más frecuente (p<0,001). En el grupo de camareros, bármanes y asimilados las diferencias en el porcentaje semestral de fumadores no alcanzaron significación estadística (p=0,07). En este grupo, los fumadores de ≤10 cigarrillos/día también se convirtieron en el grupo de consumo más frecuente (pasando del 40,5% al 48,8%) y el porcentaje de fumadores de 21-40 cigarrillos/día disminuyó del 10,6% al 4% (p=0,008).
Conclusiones: Los resultados sugieren que la nueva normativa se ha acompañado de una importante reducción del tabaquismo entre la población trabajadora española y respaldan fuertemente las medidas de lucha contra el tabaco de alcance poblacional.Background: The aim of this study was to analyze the impact on tobacco consumption among working population of the Law 42/2010, which amends smoking regulations in Spain.
Methods: Data were obtained from 413,473 Occupational Health check-ups, conducted between July of 2009 and June of 2011, in the Society for Prevention of a Mutual Insurance Company. We analyzed changes in the biannual percentage of smokers and the magnitude of tobacco consumption among smokers in the overall set of medical check-ups, by gender, age, occupational level (manual vs. non-manual workers), and in the specific occupational subgroup of waiters, barmen and similar workers (chi-square test).
Results: In the overall set of medical check-ups, the percentage of smokers decreased by 5% (from 40.3% to 35.3%) over the period of study (p <0.001) and the group of smokers with lower daily consumption (≤10 cigarettes) became the most frequent (p <0.001). In the group of waiters, barmen and similar workers the differences in the biannual percentage of smokers did not reach statistical significance (p =0.07). In this group, smokers of ≤10 cigarretes/ day also became the most common consumption group (increasing from 40.5% to 48.8%) and the percentage of 21-40 cigarretes/day decreased from 10.6% to 4% (p =0.008).
Conclusions: These results suggest that the new regulation has been accompanied by a significant reduction in smoking among Spanish workers and strongly support population-level measures against tobacco consumption.S
Influence of non-osteoporotic treatments in patients on active anti-osteoporotic therapy: evidence from the OSTEOMED registry
Producción CientíficaPurpose To evaluate the effect of different non-osteoporotic drugs on the increase or decrease in the risk of incident fragility
fractures (vertebral, humerus or hip) in a cohort of patients diagnosed with osteoporosis on active anti-osteoporotic therapy.
Methods For this retrospective longitudinal study, baseline and follow-up data on prescribed non-osteoporotic treatments
and the occurrence of vertebral, humerus or hip fractures in 993 patients from the OSTEOMED registry were analyzed
using logistic regression models. The drugs evaluated with a possible beneficial effect were thiazides and statins, while the
drugs evaluated with a possible harmful effect were antiandrogens, aromatase inhibitors, proton pump inhibitors, selective
serotonin reuptake inhibitors, benzodiazepines, GnRH agonists, thyroid hormones, and oral and inhaled corticosteroids.
Results Logistic regression analyses indicated that no treatment significantly improved fracture risk, with the only treatments
that significantly worsened fracture risk being letrozole (OR = 0.18, p-value = 0.03) and oral corticosteroids at doses ≤ 5 mg/
day (OR = 0.16, p-value = 0.03) and > 5 mg/day (OR = 0.27, p-value = 0.04).
Conclusion The potential beneficial or detrimental effects of the different drugs evaluated on fracture risk are masked by
treatment with anabolic or antiresorptive drugs that have a more potent action on bone metabolism, with two exceptions:
letrozole and oral corticosteroids. These findings may have important clinical implications, as patients receiving these treat-
ments are not fully protected by bisphosphonates, which may imply the need for more potent anti-osteoporotic drugs such
as denosumab or teriparatide.Publicación en abierto financiada por el Consorcio de Bibliotecas Universitarias de Castilla y León (BUCLE), con cargo al Programa Operativo 2014ES16RFOP009 FEDER 2014-2020 DE CASTILLA Y LEÓN, Actuación:20007-CL - Apoyo Consorcio BUCL
Perfil de los pacientes que acuden al médico internista para valoración de osteoporosis: registro OSTEOMED
Producción CientíficaAntecedentes y objetivo: La osteoporosis se considera un trastorno generalizado del esqueleto
en el que existe una alteración de la resistencia ósea que predispone a la persona a un mayor
riesgo de fractura. Este estudio transversal pretende recoger y presentar las principales características
clínicas de los pacientes que acuden a la consulta de los médicos internistas en Espa˜na.
Conocer estas características podría facilitar la puesta en marcha de planes de actuación para
mejorar la atención de estos pacientes de manera más eficaz y eficiente.
Material y métodos: A través del análisis del registro OSTEOMED (Osteoporosis en Medicina
Interna), este trabajo presenta las principales características clínicas de los pacientes con
osteoporosis que acudieron a las consultas de Medicina Interna en 23 centros hospitalarios
espa˜noles entre 2012 y 2017. Se han analizado los motivos de consulta, los valores densitométricos,
la presencia de comorbilidades, el tratamiento prescrito y otros factores relacionados
con el estilo de vida.
Resultados: En total se evaluó a 2.024 pacientes con osteoporosis (89,87% mujeres, 10,13%
hombres). La edad media de los pacientes fue de 64,1
±
12,1 a˜nos (mujeres, 64,7
±
11,5 a˜nos;
hombres, 61,2
±
14,2 a˜nos). No hubo diferencia entre sexos en la historia de caídas recientes
(9,1-6,7%), mientras que sí se apreció en la ingesta diaria de calcio de lácteos (553,8
±
332,6 mg en mujeres vs. 450,2 ± 303,3 mg en hombres; p < 0,001) y en causas secundarias de osteoporosis(13% de hombres vs. 6,5% de mujeres; p < 0,001). En la muestra se observaron un total de 404fracturas (20%), destacando el número de fracturas vertebrales confirmadas (17,2%, 35,6% enhombres vs. 15,2% de las mujeres; p < 0,001). Una gran parte de los pacientes no recibía eltratamiento indicado y presentaba bajos niveles de actividad física y exposición solar. Un por-centaje importante de pacientes presentó comorbilidades asociadas, siendo las más frecuentesla hipertensión (32%) y la dislipidemia (28%).Conclusiones: Estos resultados definen el perfil del paciente con osteoporosis que acude a laconsulta de Medicina Interna en Espa˜na. Además, ponen de manifiesto el carácter multisistémicode esta entidad que junto con su elevada prevalencia determinan que las consultas específicasde Medicina Interna dedicadas a su manejo son el lugar adecuado para la atención de estos pacientes
CIBERER : Spanish national network for research on rare diseases: A highly productive collaborative initiative
Altres ajuts: Instituto de Salud Carlos III (ISCIII); Ministerio de Ciencia e Innovación.CIBER (Center for Biomedical Network Research; Centro de Investigación Biomédica En Red) is a public national consortium created in 2006 under the umbrella of the Spanish National Institute of Health Carlos III (ISCIII). This innovative research structure comprises 11 different specific areas dedicated to the main public health priorities in the National Health System. CIBERER, the thematic area of CIBER focused on rare diseases (RDs) currently consists of 75 research groups belonging to universities, research centers, and hospitals of the entire country. CIBERER's mission is to be a center prioritizing and favoring collaboration and cooperation between biomedical and clinical research groups, with special emphasis on the aspects of genetic, molecular, biochemical, and cellular research of RDs. This research is the basis for providing new tools for the diagnosis and therapy of low-prevalence diseases, in line with the International Rare Diseases Research Consortium (IRDiRC) objectives, thus favoring translational research between the scientific environment of the laboratory and the clinical setting of health centers. In this article, we intend to review CIBERER's 15-year journey and summarize the main results obtained in terms of internationalization, scientific production, contributions toward the discovery of new therapies and novel genes associated to diseases, cooperation with patients' associations and many other topics related to RD research
- …