Encontrados 132 documentos, a visualizar página 1 de 14
Prostate Cancer: Are We Able to Diagnose Those in Need? And Are Those That Are ...
Palma dos Reis, José; Serviço de Urologia. Centro Hospitalar Lisboa Norte. Lisboa. Portugal.;
O projeto de interiores em eventos: evento comemorativo dos 25 anos da ESAD - E...
Reis, JoséNa última década, os eventos têm ganho particular relevância, resultando assim numa aposta crescente. Com o principal intuito de satisfazer e superar as necessidades dos participantes, os eventos têm assumido um papel económico, social e cultural relevante. O presente estudo corresponde a uma solução para o desenvolvimento de um projeto de interiores para o evento comemorativo dos vinte e cinco anos de uma inst...
SWEAT GLAND TUMOURS – A 10-YEARS REVIEW
Andrade, Pedro; Interno do Internato Complementar de Dermatologia e Venereologia / Resident, Dermatology and VenereologyIntroduction: The sweat gland tumours (SGT) are rare and form a heterogeneous group of epithelial neoplasms which are often misdiagnosed. Material and methods: The authors performed an epidemiologic characterization concerning all the patients diagnosed with both benign and malignant SGT, according to the histopathologic analysis of all incisional and excisional skin biopsies performed between 1999 and 2008 in ...
NON-MELANOMA SKIN CANCER IN A DEPARTMENT OF DERMATOLOGY – A 5-YEAR REVIEW
Andrade, Pedro; Interno do Internato Complementar de Dermatologia e Venereologia/Resident, Dermatology and VenereologyNon-melanoma skin cancer (NMSC), common designation for both basal cell carcinomas (BCC) and squamous cell carcinomas (SCC), is the most frequent malignant skin neoplasm. The authors have performed a retros- pective analysis of all patients diagnosed with NMSC based on histopathologic analysis of all incisional or excisional skin biopsies performed between 2004 and 2008 in a Department of Dermatology. A total o...
Systems of Synchronous and Asynchronous Communication
António D. Reis; José F. Rocha; Atílio S. Gameiro; José P. CarvalhoThe communication systems has two different types, namely the synchronous type and the asynchronous type. In the synchronous type the emitter and receiver clocks are in perfect synchronism, therefore they are rigorously equals anddependents. However, in the asynchronous type the emitter and receiver clocks are not in perfect synchronism, therefore they can be slightly different and independents. Our main object...
Wave and Symbol Synchronizers
António D. Reis; José F. Rocha; Atilio S. Gameiro; José P. CarvalhoIn this paper we present four wave synchronizers and four symbol synchronizers: analog, hybrid, combinational and sequential. All them are of the class closed loop.The wave synchronizers are vacated to synchronize withwaves or signals with deterministic phase/ transition.The symbol synchronizers are vacated to synchronize withsymbols or signals with random phase/ transition.The main objective is to study and co...
Deterministic Wave and Random Symbol Phase Digital Synchronizers
António D. Reis; José F. Rocha; Atilio S. Gameiro; José P. CarvalhoIn this paper, we present two groups of synchronizers: the Deterministic Wave Phase Digital Synchronizer and the Random Symbol Phase Digital Synchronizer.In the first case, the VCO (Voltage Controlled Oscillator)synchronizes with the deterministic phase of the input regularwave and in the second the VCO synchronizes with the random phase of the input random symbols.In each one of this groups, we present two dig...
Sequential Synchronizers with the Pulse Comparation and Clock Sampling Variants
António D. Reis; José F. Rocha; Atilio S. Gameiro; José P. CarvalhoThe function of the synchronizer is to sample the data with the minimum bit error rate (BER) and to retime its bit duration with the original format.In this work, we present the sequential synchronizer with two variants which are the pulse comparation discovered by Hogge and the clock sampling discovered by us. Each variant has two versions which are the manual and the automatic.The main objective is to study, ...
Impact of the Noise Spikes on Sequential Symbol Synchronizers
António D. Reis; José F. Rocha; Atílio S. Gameiro; José P. CarvalhoThis work study the impact of the noise spikes on sequential symbol synchronizers.We distinguish two synchronizers variants which are: the one that processes the both data transitions and the one thatprocess only the positive data transition. In each one, weconsider two versions namely the manual and the automatic.The objective is to study the various synchronizers outputjitter UIRMS (Unit Interval Root Mean Sq...
Four Carrier Phase Synchronizers Tested with Three Input Waves
António D. Reis; José F. Rocha; Atilio S. Gameiro; José P. CarvalhoIn this work, we will study four carrier phase synchronizer types namely the analog, the hybrid, the combinational and the sequential.The four carrier phase synchronizers will be operated firstwith the sinusoidal wave, after with the triangular wave andlast with the rectangular wave.The main objective is to study the four synchronizer types with the three input waves and to observe its jitter UIRMS(Unit Interva...
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