The female self-advocacy in Cancer Survivorship scale is a psychometrically sound measure of self-advocacy in male cancer survivors.

Objective: To develop and psychometrically evaluate an adapted version of the Female Self-Advocacy in Cancer Survivorship (FSACS) Scale in men with a history of cancer.

Methods: This psychometric instrument development and validation study used a two-phase approach to first adapt the FSACS Scale items to reflect the experience of men with a history of cancer and then evaluate the psychometric properties of the adapted scale compared to the original FSACS Scale. The study was conducted from December 2018 through April 2022 through cancer clinics, patient registries, and national advocacy organizations.

Ranking stressor impacts on periphyton structure and function with mesocosm experiments and environmental-change forecasts.

Streams are being subjected to physical, chemical, and biological stresses stemming from both natural and anthropogenic changes to the planet. In the face of limited time and resources, scientists, resource managers, and policy makers need ways to rank stressors and their impacts so that we can prioritize them from the most to least important (i.e.

Experimental demonstration of 72% reach enhancement of 3.6Tbps optical transmission system using mid-link optical phase conjugation.

We experimentally demonstrate nonlinear noise compensation in an optical phase conjugation assisted 1 order Raman amplified 30x30Gbaud DP-QPSK transmission system with a spectral efficiency of 3.6b/s/Hz. We show that by optimizing the link symmetry, even with only 1 order Raman amplification a single, mid-link, optical phase conjugation compensates for 90% of the signal-signal nonlinear interference resulting in a 2.

Nonlinearity compensation using optical phase conjugation deployed in discretely amplified transmission systems.

We introduce a closed form equation, validated by simulations and experimental results that predicts the residual nonlinear noise ratio in mid-link OPC assisted discretely amplified systems. The model anticipates the reduction in performance enhancement achieved by mid-link OPC as the bandwidth of the modulated signals increases. The numerical analysis shows that uncompensated signal-signal interactions limit the performance improvement achieved by the introduction of additional OPCs.

Comparison of DSP-based nonlinear equalizers for intra-channel nonlinearity compensation in coherent optical OFDM.

A novel versatile digital signal processing (DSP)-based equalizer using support vector machine regression (SVR) is proposed for 16-quadrature amplitude modulated (16-QAM) coherent optical orthogonal frequency-division multiplexing (CO-OFDM) and experimentally compared to traditional DSP-based deterministic fiber-induced nonlinearity equalizers (NLEs), namely the full-field digital back-propagation (DBP) and the inverse Volterra series transfer function-based NLE (V-NLE). For a 40 Gb/s 16-QAM CO-OFDM at 2000 km, SVR-NLE extends the optimum launched optical power (LOP) by 4 dB compared to V-NLE by means of reduction of fiber nonlinearity. In comparison to full-field DBP at a LOP of 6 dBm, SVR-NLE outperforms by ∼1  dB in Q-factor.