Apresentação: Abrindo o envelope

Apresentação do projecto Per-Fide: Paralelizando o Português com seis outras línguas

Neste documento apresentamos o projecto Per-Fide que tem como principal objectivo a criação de recursos bilingues entre a ĺıngua portuguesa e seis outras ĺınguas: espanhol, russo, francês, italiano, alemão e inglês. Este processo iniciar-se-á com a compilação de corpora paralelos em diferentes áreas, nomeadamente a literatura, religião e poĺıtica (legislativa e juŕıdica) e técnico-cient́ıfica. O...

Nevus sebáceo cerebriforme: uma rara apresentação*

A 13-year-old boy presented congenital, raised, yellowish colored plaques with fi broelastic consistency, which were velvety in appearance, alopecic, with clearly defi ned limits and sulci or well-marked meandering invaginations, a cerebriform appearance on the upper part of the right ear, accompanied by alopecia in the temporomandibular region-parietal. The lesion was asymptomatic. Histopathol...

FQPSK-O: An Improved Performance Constant Envelope Modulation Scheme for OQPSK

A new constant envelope modulation scheme for OQPSK, called FQPSK-O, is presented. This modulation technique is an extension of the Feher Quadrature Shift Keying (FQPSK) patented technologies, see Ref[l]. This scheme uses cubic spline interpolation to generate very smooth baseband waveforms in order to increase the spectral and power efficiency. Being a constant envelope modulation, FQPSK-O can...

Cell Envelope Structure and Functions in Gram-negative Bacteria

Nuclear envelope

Do you have a favorite scientific journal? Although I have several favorites which illuminate my life, I am particularly fond of Cat News, a quarterly newsletter edited by noted conservationist Peter Jackson of IUCN. Cat News publishes short essays about new developments relating to non-domestic wild cat species, from lynxes to tigers to lions and snow leopards. Felid observations, conservation...