PSK offers a stable and reliable yield north of 5%. Compared with similar ETFs, PSK's holdings are significantly lower risk. PSK should appeal to particularly risk-averse investors, but the fund lags ...
Phytosulfokine-α (PSK-α), a sulfated pentapeptide hormone with the sequence YIYTQ, plays important roles in many aspects of plant growth and development. In this study, we identified a pair of ...
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