Yukawa, Hideki

The Porifera Melythoea and the tree Carya sp. are considered accumulator organisms. Yttrium accumulates in bone and teeth, a phenomenon that is explained by its ability to bind to phosphorus-containing compounds, and to polysaccharides. Nucleic acids have high affinities for yttrium, which binds to phosphate at a ratio of 1 3. Yttrium has stimulatory effects on some fungi and other lower organisms. It is believed that yttrium binds to the surface of cells, without penetrating the cell membrane. 

Horovitz, Chaim T. (1999-2000). Biochemistyy of Scandium and Yttrium. Part 1 Physical and Chemical Fundamentals (1999). Part 2 Biochemistry and Applications (2000). New York Kluwer Academic/Plenum Publishers. 

David R., ed. (2003). The CRC Handbook of Chemistry and Physics, 84th edition. Boca Raton, FL CRC Press. 

Japanese physicist Hideki Yukawa, recipient of the 1949 Nobel Prize in physics, for his prediction of the existence of mesons on the basis of theoretical work on nuclear forces.  

This situation changed in 1937 when a new particle was discovered in a cosmic-ray experiment. It had the correct mass, and Yukawa s theory was thought to be vindicated as a consequence. However, the details of the theory did not correspond with the measured properties of this particle. In a confusing cosmic coincidence, it turned out that particle was a muon (a heavier electronlike particle), and it was not until 1947 that the pion (as the force carrier came to be known) was discovered. Finally, all the pieces of the the- 

---

Yukawa, Hideki (1982). Tabibito The Traveler, tr. L. Brown and R. Yoshida. Singapore World Scientific. 

---