Estudio sobre la presencia y el uso de las urnas Cruz del Negro en las necrópolis fenicias de Andalucía

En este trabajo presentamos un análisis de las urnas Cruz del legro descubiertas en las necrópolis fenicias de Andalucía. Allí son escasas, lo que contrasta con el uso que se hace de esta forma en las necrópolis tartesias. Creemos que el continuo flujo comercial entre las dos poblaciones motivó un tráfico de mercancías que favoreció la adopción de elementos funerarios en las mismas

Genome scale metabolic modeling reveals the metabolic potential of three Type II methanotrophs of the genus Methylocystis

Producción CientíficaGenome Scale Metabolic Models (GSMMs) of the recently sequenced Methylocystis hirsuta and two other methanotrophs from the genus Methylocystis have been reconstructed. These organisms are Type II methanotrophs with the ability of accumulating Polyhydroxyalkanoates under nutrient limiting conditions. For the first time, GSMMs have been reconstructed for Type II methanotrophs. These models, combined with experimental biomass and PHB yields of Methylocystis hirsuta, allowed elucidating the methane oxidation mechanism by the enzyme pMMO (particulate methane monooxygenase) in these organisms. In contrast to Type I methanotrophs, which use the “direct coupling mechanism”, Type II methanotrophs appear to use the so called “redox arm mechanism”. The utilization of the “redox arm mechanism”, which involves the coupling between methane oxidation and complex I of the respiratory chain, was confirmed by inhibition of complex I with catechol. Utilization of the “redox arm” mechanism leads to lower biomass yields on methane compared to Type I methanotrophs. However, the ability of Type II methanotrophs to redirect high metabolic carbon fluxes towards acetoacetyl-CoA under nitrogen limiting conditions makes these organisms promising platforms for metabolic engineering.Marie Curie grant H2020-MSCA-IF-2016 CH4BioVal (GA nº 750126).Junta de Castilla y León (Ref. Project VA281P18)Ministerio de Ciencia e Innovación (Proyect CLU 2017-09, CTM2015-70442-R

Mímesis en el registro funerario orientalizante : una propuesta de estudio

En este trabajo realizamos un análisis sobre el proceso de mímesis aplicado a un determinado objeto en el mundo orientalizante: el recipiente conocido como urna del tipo Cruz del Negro. Su adopción y asimilación, con carácter eminentemente funerario, por parte de las poblaciones locales asentadas en diversos puntos del sur peninsular, Extremadura y área de Levante, así como por parte de algunas comunidades fenicias en momentos posteriores, nos permite estudiar este complicado proceso de imitación desde varias perspectivas que resultan muy interesantes.In this work we analyse imitation in the case of pottery containers of the «Cruz del Negro» type, commonly employed as burial jars. Its adoption and assimilation by local populations in the South, Extremadura and East of Iberian Peninsula, and its later use by Phoenicians, allow us to study this complex process of imitation from several points of view

Continuous polyhydroxybutyrate production from biogas in an innovative two‐stage bioreactor configuration

Producción CientíficaBiogas biorefineries have opened up new horizons beyond heat and electricityproduction in the anaerobic digestion sector. Added‐value products such aspolyhydroxyalkanoates (PHAs), which are environmentally benign and potentialcandidates to replace conventional plastics, can be generated from biogas. Thiswork investigated the potential of an innovative two‐stage growth‐accumulationsystem for the continuous production of biogas‐based polyhydroxybutyrate (PHB)usingMethylocystis hirsutaCSC1 as cell factory. The system comprised twoturbulent bioreactors in series to enhance methane and oxygen mass transfer: acontinuous stirred tank reactor (CSTR) and a bubble column bioreactor (BCB) withinternal gas recirculation. The CSTR was devoted to methanotrophic growth undernitrogen balanced growth conditions and the BCB targeted PHB productionunder nitrogen limiting conditions. Two different operational approaches underdifferent nitrogen loading rates and dilution rates were investigated. A balancednitrogen loading rate along with a dilution rate (D) of 0.3 day−1resulted in the moststable operating conditions and a PHB productivity of ~53 g PHB m−3day−1.However, higher PHB productivities (~127 g PHB m−3day−1)wereachievedusingnitrogen excess at a D = 0.2 day−1. Overall, the high PHB contents (up to 48% w/w)obtained in the CSTR under theoretically nutrient balanced conditions and the poorprocess stability challenged the hypothetical advantages conferred by multistagevs single‐stage process configurations for long‐term PHB production.Ministerio de Ciencia e Innovación under (BES-2016-077160) contract and (project CTM2015-70442-R)Junta de Castilla y León and EU-FEDER program (UIC 315, CLU 2017-09

Failure management insights in 5G using ns-3 network simulator

Failure management has been one of the most researched fields in cellular networks paradigm. Networks operators has experienced many problems on their deployments with each of the past generations. 5G networks aim high to encompass a wide variety of services, which means a large amount of resources on network management and failure resolution. The objective of the present work is to use the previous generation as base and provide, together with the updates on 3GPP specification, insights about what would be the problems that networks will handle. For this, they were identified and categorized some of these failures at the same time their effect on system performance was evaluated.This work was supported by the European Union’s Horizon 2020 research and innovation program under Grant no. 871249, project LOCUS. This work has been also funded by: Junta de Andalucía and ERDF: projects IDADE-5G (UMA18-FEDERJA-201) and OptiRAN5G (UMA18-FEDERJA-174), and postdoctoral grant (Ref., DOC 01154, “selección de personal investigador doctor convocado mediante Resolución de 21 de mayo de 2020”, PAIDI 2020); University of Malaga, through the I Plan Propio de Investigación, Transferencia y Divulgación Científica de la Universidad de Málaga. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Active Ageing and Access to Technology: An Evolving Empirical Study

Researchers' interest in seeing the benefits of Internet in elderly people is now growing. The network helps this group to increase communication, avoid isolation and loneliness and to age actively. Europe decided 2012 to be the Year of Active ageing. This paper presents a descriptive study of time series analysis carried out between 2004 and 2012 with the aim of knowing how the evolution in the level, motives and needs of the use of computers and Internet by elderly people in an environment of university training focused on health and life quality is. To obtain results a question paper is to be handed out to a sample of 419 people aged between 55 and 94 and taking part in the «Inter-university Programs of Experiences» from the University of Burgos. The obtained results match up with previous studies that pointed a noticeable increase in the use of the Internet (in frequency, number of users and resources) caused by elderly people's desire to keep active, up-to-date and communicated, as well as their need to continue their learning process through tools linked to the network. Here some suggestions focused on the improvement elderly people's formation and future research on the perception of the Internet as a tool for social participation

Microbial community changes during different empty bed residence times and operational fluctuations in an air diffusion reactor for odor abatement

Producción CientíficaThe succession of bacterial and fungal populations was assessed in an activated sludge (AS) diffusion bioreactor treating a synthetic malodorous emission containing H2S, toluene, butanone and alpha-pinene. Microbial community characteristics (bacterial and fungal diversity, richness, evenness and composition) and bioreactor function relationships were evaluated at different empty bed residence times (EBRTs) and after process fluctuations and operational failures (robustness test). For H2S, butanone and toluene, the bioreactor showed a stable and efficient abatement performance regardless of the EBRT and fluctuations applied, while low alpha-pinene removals were observed. While no clear positive or negative relationship between community characteristics and bioreactor functions was observed, ecological parameters such as evenness and community dynamics seemed to be of importance for maintaining reactor stability. The optimal degree of evenness of the inoculum likely contributed to the high robustness of the system towards the fluctuations imposed. Actinobacteria, Proteobacteria and Fungi (Hypocreales, Chaeatothyriales) were the most abundant groups retrieved from the AS system with a putative key role in the degradation of butanone and toluene. Typical H2S and alpha-pinene degraders were not retrieved from the system. The inoculation of P. fluorescens, a known alpha-pinene degrader, to the system did not result in the enhancement of the degradation of this compound. This strain was likely outcompeted by the microorganisms already adapted to the AS environment.2019-03-08Ministerio de Economía, Industria y Competitividad (CTQ2007-64324, 18ISMW)Junta de Castilla y Leon (UIC 476 71

Optimization of nitrogen feeding strategies for improving polyhydroxybutyrate production from biogas by Methylocystis parvus OBBP in a stirred tank reactor

Producción CientíficaThe design of efficient cultivation strategies to produce bioplastics from biogas is crucial for the implementation of this biorefinery process. In this work, biogas-based polyhydroxybutyrate (PHB) production and CH4 biodegradation performance was investigated for the first time in a stirred tank bioreactor inoculated with Methylocystis parvus OBBP. Decreasing nitrogen loading rates in continuous mode and alternating feast:famine regimes of 24 h-cycles, and alternating feast:famine regimes of 24 h:24 h and 24 h:48 h were tested. Continuous N feeding did not support an effective PHB production despite the occurrence of nitrogen limiting conditions. Feast-famine cycles of 24 h:24 h (with 50% stoichiometric nitrogen supply) supported the maximum PHB production (20 g-PHB m−3 d−1) without compromising the CH4-elimination capacity (25 g m−3 h−1) of the system. Feast:famine ratios ≤1:2 entailed the deterioration of process performance at stoichiometric nitrogen inputs ≤60%.Ministerio de Ciencia, Innovación y Universidades (grant BES-2016-077160)Ministerio de Ciencia, Innovación y Universidades (project CTM2015-70442-R)Junta de Castilla y León (projects UIC 071 and CLU 2017–09

Digital Wiretap Warrant: Improving the security of ETSI Lawful Interception

Lawful Interception (LI) of data communications is an essential tool for Law Enforcement Agencies (LEA) in order to investigate criminal activities carried out or coordinated by means of Internet. However, the ability to secretly monitor the activities of citizens also has a great impact on civil rights. Therefore, democratic societies must prevent abuse and ensure that LI is only employed in specific cases with justifiable grounds or a probable cause. Nowadays, in many countries each interception must be authorized by a wiretap warrant, usually issued by a judge. However, this wiretap warrant is merely an administrative document that should be checked by the network or service operator before enabling the monitoring of its customers, whose communications are later handed over to a LEA in plaintext. This paper proposes the idea of employing a Digital Wiretap Warrant (DWW), which further protects the civil liberties, security and privacy of LI by ensuring that monitoring devices can only be enabled with a valid DWW, and by encrypting the captured data so only the authorized LEA is able to decrypt those communications. Moreover, in the proposed DWW framework all digital evidence is securely time-stamped and signed, thus guaranteeing that it has not been tampered with, and that a proper chain of custody has been met. In particular this paper proposes how to apply the DWW concept to the lawful interception framework defined by the ETSI LI Technical Committee, and evaluates how the additional security mechanisms could impact the performance and storage costs of a LI platform.The work presented in this paper has been funded by the INDECT project (Ref 218086) of the 7th EU Framework Programme. The authors would also like to acknowledge the Spanish-funded CRAMnet (Grant no. TEC2012-38362-C03-01)

Modelo de Gestión Socioempresarial Solidario.

En el caminar de la Escuela de Economía Solidaria de la Corporación Universitaria Minuto de Dios- UNIMINUTO, durante el periodo 1996-2014 se identificó que una de las principales debilidades de las organizaciones solidarias, que les impiden alcanzar, como entidades sin ánimo de lucro sus objetivos sociales, económicos, culturales, ambientales y políticos -simultáneamente-, para poder ser socialmente capaces y económicamente sostenible en pro del desarrollo integral de los asociados y sus familiar, es la ausencia de un modelo de gestión propio, dado que la mayoría de ellas se gestionan con modelos diseñados para las empresas con ánimo de lugro. Esta primera fase de la investigación Modelo de gestión socioempresarial solidario. Reflexiones conceptuales de acción UNIMINUTO: estudiantes de Cátedra Solidaria, docentes y líderes de comunidades sujetos de acción, sobre aquellos temas que a partir de la sistematización de la experiencia de la Escuela de Economía Solidaria se identificaron como importantes hacia la construcción del modelo