Cannocchiale Aristotelico esto es, Anteojo de larga vista, o idea de la agudeza, e ingeniosa locucion, que sirve a toda arte oratoria /

Mode of access: Internet.

Papel nuevo, medicina buena, natural, segura y por poco dinero, para mantenerse todos con larga vida, y buena salud, con un sueño con el doct. Martin Martinez /

Mode of access: Internet.

Cannocchiale Aristotelico esto es, Anteojo de larga vista, o idea de la agudeza, e ingeniosa locucion, que sirve a toda arte oratoria /

Mode of access: Internet.

Obras del V.P.M Fr. Luis de Granada : precede su vida escrita por ... Luis Muñoz ... Guía de pecadores, en la qual [sic] se contiene una larga y copiosa exhortacion á la virtud y guarda de los mandamientos divinos : tomo I.

Mode of access: Internet.

Nueva gramática hebrea comparada con otras semíticas : precedida de una larga reseña histórica : y seguida de un manual práctico, un resumen de dicha gramática y una breve gramática caldea /

Mode of access: Internet.

Guia de pecadores : en la cual se contiene una larga y copiosa exhortacion á la virtud y guarda de los mandamientos divinos /

Contiene: T. II (510 p.)

Juanita la larga.

Mode of access: Internet.

La educación a distancia en bibliotecología : Reflexiones sobre una experiencia virtual de formación de postgrado

Este artículo describe la experiencia del dictado del Curso de Postgrado "Gestión de Bibliotecas y Centros de Documentación" desarrollado por FLACSO en los años 2004 y 2005. Tiene en cuenta la experiencia desarrollada por otros postgrados dictados en la institución de los que se nutrió y de los que aprendió para salir exitoso del desafío de la educación a distancia. Reflexiona sobre las prácticas de lectura y escritura de los alumnos, sus modos de apropiación de las herramientas intelectuales y los aportes teóricos metodológicos. También reflexiona sobre algunas peculiaridades de los vínculos interpersonales en el marco de la modalidad virtual, y la formación personal de cada uno en relación con sus propias inquietudes y práctica profesional

Estudos de distúrbios ionosféricos propagantes de larga escala (LSTID’S) na região equatorial durante grandes tempestades magnéticas: estudo de casos

The Ionospheric Disturbances – TIDs – are irregularities on the ionospheric plasma propagating in speeds in the order of tens to a few hundreds of meters per second. This present study detected and characterized the TIDs of LSTIDs (Large Scale Travelling Ionospheric Disturbance) type at low latitudes during intense geomagnetic storms and its propagation over the Brazilian sector. This work also shows as being the first to report systematically propagation of gravity waves over Natal. For this purpose, we used ionospheric records obtained from type of digisonde CADI (Canadiam Advanced Digital Ionosonde) located in Natal and the type DSP (Digisonde Portable Souder) located in Cachoeira Paulista, Fortaleza and São Luis, whereupon we used a dataset of 12 years collected by INPE (National Institute of Space Research). In this study, both calm days, that preceded the storms, and the geomagnetically disturbed days were related during the years 2000 and 1012, which cover a period of maximum and minimum solar activity. And it is presented the variations that happened in the electron density from region F of the ionosphere over the Brazilian sector, especially near the Equator (Natal, Fortaleza and São Luis), caused by ionospheric disturbances in the equatorial region during intense geomagnetic storms, because, as we know of the literature in this area, this phenomenon contributes positively to the emergence of LSTIDs in the auroral region, which may move to the equatorial region where a few cases have been documented and studied systematically. From the observation of signatures if TIDs in ionogram records, a study of the morphology of these events was performed and compared with the main characteristics of the wave of this phenomenon during great magnetic storms, i.e., DST <(-200 nT) and KP > 6. Thus, we obtained the main characteristics of TIDs over our region, i.e., period, vertical wavelength, phase and propagation speed, as well as the delay of these disturbances compared to the beginning of the magnetic storms to the Brazilian Sector.

Estratégias distribuídas para a coexistência de redes de banda larga sem fio em bandas não-licensiadas

The increasing demand for Internet data traffic in wireless broadband access networks requires both the development of efficient, novel wireless broadband access technologies and the allocation of new spectrum bands for that purpose. The introduction of a great number of small cells in cellular networks allied to the complimentary adoption of Wireless Local Area Network (WLAN) technologies in unlicensed spectrum is one of the most promising concepts to attend this demand. One alternative is the aggregation of Industrial, Science and Medical (ISM) unlicensed spectrum to licensed bands, using wireless networks defined by Institute of Electrical and Electronics Engineers (IEEE) and Third Generation Partnership Project (3GPP). While IEEE 802.11 (Wi-Fi) networks are aggregated to Long Term Evolution (LTE) small cells via LTE / WLAN Aggregation (LWA), in proposals like Unlicensed LTE (LTE-U) and LWA the LTE air interface itself is used for transmission on the unlicensed band. Wi-Fi technology is widespread and operates in the same 5 GHz ISM spectrum bands as the LTE proposals, which may bring performance decrease due to the coexistence of both technologies in the same spectrum bands. Besides, there is the need to improve Wi-Fi operation to support scenarios with a large number of neighbor Overlapping Basic Subscriber Set (OBSS) networks, with a large number of Wi-Fi nodes (i.e. dense deployments). It is long known that the overall Wi-Fi performance falls sharply with the increase of Wi-Fi nodes sharing the channel, therefore there is the need for introducing mechanisms to increase its spectral efficiency. This work is dedicated to the study of coexistence between different wireless broadband access systems operating in the same unlicensed spectrum bands, and how to solve the coexistence problems via distributed coordination mechanisms. The problem of coexistence between different networks (i.e. LTE and Wi-Fi) and the problem of coexistence between different networks of the same technology (i.e. multiple Wi-Fi OBSSs) is analyzed both qualitatively and quantitatively via system-level simulations, and the main issues to be faced are identified from these results. From that, distributed coordination mechanisms are proposed and evaluated via system-level simulations, both for the inter-technology coexistence problem and intra-technology coexistence problem. Results indicate that the proposed solutions provide significant gains when compare to the situation without distributed coordination.

Caratterizzazione sperimentale di sistemi di localizzazione a banda ultra-larga

Il processo di localizzazione risponde all'esigenza dell'uomo di avere una percezione sempre più dettagliata e precisa del contesto in cui si trova, con l'intento di migliorare e semplificare l'interazione con oggetti e cose ivi presenti. L'idea attuale è quella di progettare sistemi di posizionamento con particolare riguardo agli ambienti indoor, caratterizzati da proprietà e densità di elementi che limitano fortemente le prestazioni dei consolidati sistemi di tracking, particolarmente efficienti in spazi aperti. Consapevole di questa necessità, il seguente elaborato analizza le prestazioni di un sistema di localizzazione sviluppato dall'Università di Bologna funzionante in tecnologia Ultra-Wide Bandwidth (UWB) e installato nei laboratori DEI dell'Alma Mater Studiorum con sede a Cesena. L'obiettivo è quello di caratterizzare l'accuratezza di localizzazione del sistema, suggerendo nuovi approcci operativi e de�finendo il ruolo dei principali parametri che giocano nel meccanismo di stima della posizione, sia in riferimento a scenari marcatamente statici sia in contesti in cui si ha una interazione dinamica degli oggetti con lo spazio circostante. Una caratteristica della tecnologia UWB è, infatti, quella di limitare l'errore di posizionamento nel caso di localizzazione indoor, grazie alle caratteristiche fisiche ed elettriche dei segnali, aprendo nuovi scenari applicativi favorevoli in termini economici, energetici e di minore complessità dei dispositivi impiegati.

El coaching educativo, la videoconferencia sincrónica online y otras herramientas digitales aplicadas a la enseñanza a distancia:implementación por videoconferencia sincrónica de un curso online de introducción a proyectos de diseño

Esta tesis doctoral tiene su origen en el proyecto educativo online y offline Arte Casellas que se inició con el propósito de solucionar dos necesidades. La primera, ofrecer a los alumnos de bachillerato una formación que les capacitase para superar la prueba específica de acceso a los Estudios Superiores de Grado de Diseño y la segunda la superación de paradigmas educativos obsoletos estimulando el espíritu de emprendimiento e independencia económica de los docentes. El citado proyecto contaba con una página web en la que se estaban aplicando los conceptos básicos de marca personal y marketing educativo y se había comenzando a implementar, entre otros productos, un curso online impartido por videoconferencia sincrónica con el que se estaba enseñando dibujo técnico y artístico, creatividad e historia del diseño. Este curso se convirtió en el estudio de caso de esta tesis doctoral...

Sistemas de cálculo, análise e operação virtual: interferências de campos elétricos e magnéticos produzidas por estações radio base de acesso múltiplo por divisão de código em banda larga - WCDMA

In this work it was developed mathematical resolutions taking as parameter maximum intensity values for the interference analysis of electric and magnetic fields and was given two virtual computer system that supports families of CDMA and WCDMA technologies. The first family were developed computational resources to solve electric and magnetic field calculations and power densities in Radio Base stations , with the use of CDMA technology in the 800 MHz band , taking into account the permissible values referenced by the Commission International Protection on non-Ionizing Radiation . The first family is divided into two segments of calculation carried out in virtual operation. In the first segment to compute the interference field radiated by the base station with input information such as radio channel power; Gain antenna; Radio channel number; Operating frequency; Losses in the cable; Attenuation of direction; Minimum Distance; Reflections. Said computing system allows to quickly and without the need of implementing instruments for measurements, meet the following calculated values: Effective Radiated Power; Sector Power Density; Electric field in the sector; Magnetic field in the sector; Magnetic flux density; point of maximum permissible exposure of electric field and power density. The results are shown in charts for clarity of view of power density in the industry, as well as the coverage area definition. The computer module also includes folders specifications antennas, cables and towers used in cellular telephony, the following manufacturers: RFS World, Andrew, Karthein and BRASILSAT. Many are presented "links" network access "Internet" to supplement the cable specifications, antennas, etc. . In the second segment of the first family work with more variables , seeking to perform calculations quickly and safely assisting in obtaining results of radio signal loss produced by ERB . This module displays screens representing propagation systems denominated "A" and "B". By propagating "A" are obtained radio signal attenuation calculations in areas of urban models , dense urban , suburban , and rural open . In reflection calculations are present the reflection coefficients , the standing wave ratio , return loss , the reflected power ratio , as well as the loss of the signal by mismatch impedance. With the spread " B" seek radio signal losses in the survey line and not targeted , the effective area , the power density , the received power , the coverage radius , the conversion levels and the gain conversion systems radiant . The second family of virtual computing system consists of 7 modules of which 5 are geared towards the design of WCDMA and 2 technology for calculation of telephone traffic serving CDMA and WCDMA . It includes a portfolio of radiant systems used on the site. In the virtual operation of the module 1 is compute-: distance frequency reuse, channel capacity with noise and without noise, Doppler frequency, modulation rate and channel efficiency; Module 2 includes computes the cell area, thermal noise, noise power (dB), noise figure, signal to noise ratio, bit of power (dBm); with the module 3 reaches the calculation: breakpoint, processing gain (dB) loss in the space of BTS, noise power (w), chip period and frequency reuse factor. Module 4 scales effective radiated power, sectorization gain, voice activity and load effect. The module 5 performs the calculation processing gain (Hz / bps) bit time, bit energy (Ws). Module 6 deals with the telephone traffic and scales 1: traffic volume, occupancy intensity, average time of occupancy, traffic intensity, calls completed, congestion. Module 7 deals with two telephone traffic and allows calculating call completion and not completed in HMM. Tests were performed on the mobile network performance field for the calculation of data relating to: CINP , CPI , RSRP , RSRQ , EARFCN , Drop Call , Block Call , Pilot , Data Bler , RSCP , Short Call, Long Call and Data Call ; ECIO - Short Call and Long Call , Data Call Troughput . As survey were conducted surveys of electric and magnetic field in an ERB , trying to observe the degree of exposure to non-ionizing radiation they are exposed to the general public and occupational element. The results were compared to permissible values for health endorsed by the ICNIRP and the CENELEC .

Deportes Electrónicos : A un clic de distancia

En la exposición se pretende presentar un proyecto de tesis y avances sobre la construcción de la misma. En la cual se abordan los deportes electrónicos, comprendiéndolos como un fenómeno reciente que se desarrolla con gran fuerza en la actualidad y creció exponencialmente durante los últimos años, brindando una oferta muy seductora al público juvenil principalmente que posea acceso a internet. Se utilizara a modo de ejemplo para la práctica seleccionada el género de videojuegos llamado MOBA (Multiplayer Open Battle Arena), representando al mismo con el juego League of Legends o conocido también como LOL; con la intención de reflejar como el movimiento y la dimensión lúdica cobran sentidos no contemplados en las definiciones tradicionales del deporte. El objetivo será explicar, describir y analizar la lógica estructural de estos videojuegos en red RPG-MMORPG-MOBA y su práctica, para poder contrastarla con la lógica del juego y la del deporte tradicional, junto a sus clasificaciones propias. Intentando poner en tensión dichas definiciones y clasificaciones que no contemplan a prácticas actuales como los Deportes Electrónicos