Search results for "C [POLY I]"

Black Queen Evolution and Trophic Interactions Determine Plasmid Survival after the Disruption of the Conjugation Network

2018

Bacterial antibiotic resistance is often a part of mobile genetic elements that move from one bacterium to another. By interfering with the horizontal movement and the maintenance of these elements, it is possible to remove the resistance from the population. Here, we show that a so-called plasmid-dependent bacteriophage causes the initially resistant bacterial population to become susceptible to antibiotics. However, this effect is efficiently countered when the system also contains a predator that feeds on bacteria. Moreover, when the environment contains antibiotics, the survival of resistance is dependent on the resistance mechanism. When bacteria can help their contemporaries to degrad…

Tracking mite trophic interactions by multiplex PCR

2020

Background A thorough knowledge of trophic webs in agroecosystems is essential to achieve successful biological pest control. Phytoseiid mites are the most efficient natural enemies of tetranychid mites, which include several important pests worldwide. Nevertheless, phytoseiids may feed on other food sources including other microarthropods, plants and even other phytoseiids (intraguild predation), which can interfere with biological control services. Molecular gut content analysis is a valuable tool for characterizing trophic interactions, mainly when working on microarthropods such as mites. We have designed new primers for Phytoseiidae, Tetranychidae and Thysanoptera identification and th…

Dependence of Arctic char (Salvelinus alpinus L.) on littoral and pelagic energy sources in a subarctic lake, Saanajärvi

2007

The Aqua-Planet Experiment (APE): CONTROL SST Simulation

2013

Climate simulations by 16 atmospheric general circulation models (AGCMs) are compared on an aqua-planet, a water-covered Earth with prescribed sea surface temperature varying only in latitude. The idealised configuration is designed to expose differences in the circulation simulated by different models. Basic features of the aqua-planet climate are characterised by comparison with Earth. The models display a wide range of behaviour. The balanced component of the tropospheric mean flow, and mid-latitude eddy covariances subject to budget constraints, vary relatively little among the models. In contrast, differences in damping in the dynamical core strongly influence transient eddy amplitudes…

Economic and Life Cycle Analysis of Passive and Active Monitoring of Ozone for Forest Protection

2021

At forest sites, phytotoxic tropospheric ozone (O3) can be monitored with continuously operating, active monitors (AM) or passive, cumulative samplers (PM). For the first time, we present evidence that the sustainability of active monitoring is better than that of passive sensors, as the environmental, economic, and social costs are usually lower in the former than in the latter. By using data collected in the field, environmental, social, and economic costs were analyzed. The study considered monitoring sites at three distances from a control station in Italy (30, 400, and 750 km), two forest types (deciduous and Mediterranean evergreen), and three time windows (5, 10, and 20 years of moni…

Verità e discorso. Heidegger e la fenomenologia aristotelica

2022

The research critically examines the attribution to Aristtele of the fatal aporia between the phenomenological instance of an intuitive and pre-categorical truth and the hermeneutic instance of an originally linguistic articulation of the truth itself conducted by Heidegger radicalizing the polarization between the truth of the nous and the truth of dianoia. At the same time, the value of Heidegger's reading is highlighted, which inaugurates a phenomenological direction of Aristotelian studies inspired by the assumption that for the Stagirite concrete realities must be understood starting from a concretion of physis and logos. The phenomenological approach according to which there is no nee…

The Effects of the Value-Added Tax on Revenue and Inequality

2019

This paper examines the impact of the introduction of the value-added tax on inequality and government revenues using newly released macro data. We present both conventional country fixed effect regressions and instrumental variable analyses, where VAT adoption is instrumented using the previous values of neighbouring countries’ VAT systems as an instrument. The results reveal – in contrast to earlier work – that the revenue consequences of the VAT have not been positive. The results indicate that income-based inequality has increased due to the VAT adoption, whereas consumption inequality has remained unaffected. Peer reviewed

Tumores intracraneles pediátricos: efectos tardíos de la enfermedad y sus tratamientos.

2014

Se describen los efectos tardíos provocados por la enfermedad y los tratamientos en los niños con tumores intracraneales. La mayoría pueden ser atribuidos al daño neurológico producido por el tumor y su extirpación, por la toxicidad de la quimioterapia y por los efectos de la radiación en el desarrollo del sistema nervioso central. Los efectos tardíos abarcan múltiples aspectos: médicos, neurocognitivos/educativos y sociales/comportamentales. Los pacientes presentan dificultades de aprendizaje, trastornos motrices y sensoriales, descensos de coeficiente intelectual, déficits en los procesos cognitivos básicos, problemas en el ajuste social, comportamental y emocional, y falta de competencia…

Electronic Energy Meter Based on a Tunnel Magnetoresistive Effect (TMR) Current Sensor

2017

In the present work, the design and microfabrication of a tunneling magnetoresistance (TMR) electrical current sensor is presented. After its physical and electrical characterization, a wattmeter is developed to determine the active power delivered to a load from the AC 50/60 Hz mains line. Experimental results are shown up to 1000 W of power load. A relative uncertainty of less than 1.5% with resistive load and less than 1% with capacitive load was obtained. The described application is an example of how TMR sensing technology can play a relevant role in the management and control of electrical energy.

Emergency Response Model as a part of the Smart Society

2021

Centralized hybrid emergency model with predictive emergency response functions is necessary when the purpose is to protect the critical infrastructure (CI). A shared common operational picture among Public Protection and Disaster Relief (PPDR) authorities means that a real-time communication link from the local level to the state-level exists. If a cyberattack would interrupt electricity transmission, telecommunication networks will discontinue operating. Cyberattack becomes physical in the urban and maritime area if an intrusion has not been detected. Hybrid threats require hybrid responses. The purpose of this qualitative research was to find out technological-related fundamental risks …