Experimental characterization of Random Telegraph Noise in FDSOI technology and its application for security primitives

The shrinking of transistors and consequent decrease in operational voltage, specially for Ultra-Low Voltage (ULV) applications such as IoT, has driven current technology to be very sensitive to the effects of random telegraph noise (RTN), the result of trapping and detrapping of carriers in a transistor’s oxide trap. Such a source of noise is attractive for the implementation of security primitives due to its resilience to temperature and supply voltage variations. However, it stands out from other noise sources for its low speed. The use of FDSOI technology, through the ability of controlling body bias, can be the key to optimize RTN speed for such applications. In this project, an experimental characterization of RTN behavior in an FDSOI ROSC- based chip has been conducted to evaluate the potential application of such a technology in security primitives. Results show that FDSOI technology can be employed to significantly increase or decrease RTN speed and even compensate for the effect of supply voltage and temperature variations

Las traducciones españolas de L'unione del regno di Portogallo alla corona di Castiglia de Conestaggio (1585): texto y paratexto

El censo de traducciones españolas de obras italianas emprendido por el equipo del Proyecto Boscán ha permitido añadir nuevos datos a la biblioteca sumergida de versiones manuscritas de los siglos XVI y XVII, cuyo conocimiento resulta indispensable para reconstruir el puzzle de la recepción

Addendum to "Coherent radio pulses from GEANT generated electromagnetic showers in ice"

We reevaluate our published calculations of electromagnetic showers generated by GEANT 3.21 and the radio frequency pulses they produce in ice. We are prompted by a recent report showing that GEANT 3.21-modeled showers are sensitive to internal settings in the electron tracking subroutine. We report the shower and pulse characteristics obtained with different settings of GEANT 3.21 and with GEANT 4. The default setting of electron tracking in GEANT 3.21 we used in previous work speeds up the shower simulation at the cost of information near the end of the tracks. We find that settings tracking electron and positron to lower energy yield a more accurate calculation, a more intense shower, and proportionately stronger radio pulses at low frequencies. At high frequencies the relation between shower tracking algorithm and pulse spectrum is more complex. We obtain radial distributions of shower particles and phase distributions of pulses from 100 GeV showers that are consistent with our published results.Comment: 4 pages, 3 figure

Poder académico versus autoridad femenina : la Facultad de Medicina de París contra Jacoba Félicié (1322 )

Este artículo analiza el juicio que la Facultad de Medicina de París incoó contra Jacoba Félicié en 1322. Partiendo de las narrativas de sus pacientes, intenta interpretar la práctica médica de Jacoba y la naturaleza específica de la relación establecida con sus pacientes. Para identificar y describir esta relación, utilizamos una distinción básica entre poder y autoridad

Exploración clínica en estomatología veterinaria

La exploración clínica se basa en un conjunto de normas y maniobras encaminadas al estudio de síntomas para la determinación diagnóstica de patologías, y al establecimiento de un tratamiento adecuado y específico. Explicamos la exploración sistemática que debe ponerse en práctica en el campo de la Estomatología Veterinaria, pudiendo así determinar las afecciones de los tejidos blandos y duros.For the diagnostic of different oral pathologies we use several techniques. We will establish a specific treatment for each one. We describe a sistemic exploration that is used in veterinary dentistry and afecting both, soft and hard tissues

Characterization of neutrino signals with radiopulses in dense media through the LPM effect

We discuss the possibilities of detecting radio pulses from high energy showers in ice, such as those produced by PeV and EeV neutrino interactions. It is shown that the rich radiation pattern structure in the 100 MHz to few GHz allows the separation of electromagnetic showers induced by photons or electrons above 100 PeV from those induced by hadrons. This opens up the possibility of measuring the energy fraction transmitted to the electron in a charged current electron neutrino interaction with adequate sampling of the angular distribution of the signal. The radio technique has the potential to complement conventional high energy neutrino detectors with flavor information.Comment: 5 pages, 4 ps figures. Submitted to Phys. Rev. Let

Observation of the Askaryan Effect: Coherent Microwave Cherenkov Emission from Charge Asymmetry in High Energy Particle Cascades

We present the first direct experimental evidence for the charge excess in high energy particle showers predicted nearly 40 years ago by Askaryan. We directed bremsstrahlung photons from picosecond pulses of 28.5 GeV electrons at the SLAC Final Focus Test Beam facility into a 3.5 ton silica sand target, producing electromagnetic showers several meters long. A series of antennas spanning 0.3 to 6 GHz were used to detect strong, sub-nanosecond radio frequency pulses produced whenever a shower was present. The measured electric field strengths are consistent with a completely coherent radiation process. The pulses show 100% linear polarization, consistent with the expectations of Cherenkov radiation. The field strength versus depth closely follows the expected particle number density profile of the cascade, consistent with emission from excess charge distributed along the shower. These measurements therefore provide strong support for experiments designed to detect high energy cosmic rays and neutrinos via coherent radio emission from their cascades.Comment: 10 pages, 4 figures. Submitted to Phys. Rev. Let

Mycocalicium llimonae Hladun & Muñiz (Ascomycota, (Eurotiomycetes(, (Mycocaliciales(), un fong mediterrani tan freqüent com difícil de veure : ecologia i distribució a Catalunya

Mycocalicillm llimonae Hladun & Muñiz (Ascomycota, Eurotiomycetes, Mycocaliciales), un fong mediterrani tan freqüent com difícil de veure. Ecologia i distribució a Catalunya. Oferim noves de Mycocalicium llimonae Hladun & Muñiz, un fong calicioide que havia estat mencionat, erròniament, a la Península Ibérica sota el nom de M. minutellum (=M subtile). A més d'una descripció, el treball inclou unes claus per la seva identificació, dades corològiques, un mapa que resumeix la distribució coneguda a Catalunya, una síntesi de l'ecologia observada i macrofotografies de l'aspecte d'aquest minúscul ascomicet lignícola i termòfil, que sembla exigir condicions de rosada freqüent.Mycocalicium llimonae Hladun & Muñiz (Ascomycota, Ellrotiomycetes, Mycocaliciales), un hongo tan frecuente como difícil de observar. Escología y distribución en Cataluña. Ofrecemos nuevos datos de Mycocalicium llimonae Hladun & Muñiz, un hongo calicioide que había sido mencionado, erróneamente, en la Península Ibérica bajo el nombre de M. minutellum (=M subtile). Además de una descripción, el trabajo incluye claves para su identificación, datos corológicos, un mapa que resume la distribución conocida en Cataluña, una síntesis de la ecología observada y macrofotografias del aspecto de este minúsculo ascomicete lignícola y terrnófilo, que parece exigir rocío frecuente.Mycocalicillm llimonae Hladun & Muñiz (Ascolllycota, Ellrotiolllycetes, Mycocaliciales), a Mediterranean fungus fairly frequent but rather difficult to be detected. Ecology and occurrence in Catalonia. New data regarding Mycocalicium lIimonae Hladun & Muñiz, a calicioid fungus previously mentioned, erroneously, from the Iberian Peninsula under the name M. minutellum (=M subtile). Besides a brief description, this work includes an identification key, corologic data, a comprehesive map of its distribution in Catalonia, a synthesis of the observed ecology and macrophotographies of the habitus of this tiny, dew-loving lignicolous, thermophilous, ascomycete