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Photosystem II (PSII) is the most thermolabile photosynthetic complex. Physiological evidence suggests that the small chloroplast heat‐shock protein 21 (HSP21) is involved in plant thermotolerance, but the molecular mechanism of its action remains largely unknown. Here, we have provided genetic and biochemical evidence that HSP21 is activated by the GUN5‐dependent retrograde signaling pathway, and...
Data hiding has been used to send sensitive information that is hidden in another signal/object, such as in audio or image data. The cover and marked signals are indistinguishable, so that they remain imperceptible to the human senses. Chang et al. proposed a dual-image data hiding method, which uses a magic matrix to embed secret data. Even though the peak signal-to-noise ratio (PSNR) of the image...
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