Results 241 to 250 of about 971,010 (279)

PMS in the perimenopause

British Menopause Society Journal, 2004
Premenstrual syndrome (PMS) and the perimenopause are each difficult conditions to manage. When they co-exist the difficulty is more than doubled. Understanding and recognising the differences and the similarities between these conditions should enable clinicians to provide appropriate treatment and significantly improve women's quality of life ...
Ismail, Hassan   +2 more
openaire   +2 more sources

pm-lattices

Algebra Universalis, 1977
Let \(L\) be a bounded distributive lattice; \({\mathcal P}\) and \({\mathcal M}\) are respectively the prime spectrum and maximal spectrum of \(L\). If every prime ideal of \(L\) is contained in a unique maximal ideal of \(L\) then \(L\) is called a \(pm\)-lattice.
Pawar, Y. S., Thakare, N. K.
openaire   +2 more sources

Experimental Comparison of PM-16QAM and PM-32QAM with Probabilistically Shaped PM-64QAM

Optical Fiber Communication Conference, 2017
We experimentally compare the performance of uniformly distributed and probabilistically shaped constellations with either the same asymptotic mutual information or the same FEC overhead, in order to assess the achievable shaping gain.
BERTIGNONO, LUCA   +4 more
openaire   +2 more sources

On the Performance of Nyquist-WDM Terabit Superchannels Based on PM-BPSK, PM-QPSK, PM-8QAM or PM-16QAM Subcarriers

Journal of Lightwave Technology, 2011
We investigated through simulations the performance of Nyquist-WDM Terabit superchannels implemented using polarization-multiplexed phase shift-keying based on 2 (PM-BPSK) and 4 (PM-QPSK) signal points or polarization-multiplexed quadrature amplitude modulation based on 8 (PM-8QAM) and 16 (PM-16QAM) signal points.
Bosco G.   +4 more
openaire   +2 more sources

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