Turonova, B. et al. In situ structural analysis of SARS-CoV-2 spike reveals flexibility mediated by three hinges. Science 370, 203–208 (2020). Wang, Y. et al. A comprehensive investigation of the mRNA and protein level of ACE2, the putative receptor of SARS-CoV-2, in human tissues and blood cells. Int. J. Med. Sci. 17, 1522–1531 (2020). Wu, K. et al. Serum neutralizing activity elicited by mRNA-1273 vaccine. N. Engl. J. Med. 384, 1468–1470 (2021). Consumers (and not consumers) by type of caffeine-containing beverage and willingness to try (or not) yerba mate

Kawakami, M.; Kobayashi, A. Volatile constituents of green mate and roasted mate. J. Agric. Food Chem. 1991, 39, 1275–1279. [ Google Scholar] [ CrossRef] There is no known key for port rotation numbers (which appear in earlier merchant seamen service records). You may be able to locate which official numbers belong to which ships in series BT 336.

What does it help to know before I start?

Turner, A. J. & Hooper, N. M. The angiotensin-converting enzyme gene family: genomics and pharmacology. Trends Pharmacol. Sci. 23, 177–183 (2002). Lovera, N.N.; Alegre, C.A.; Hedman, J.C.; Surkan, S.A.; Schmalko, M.E. Determination of the intake temperature of the beverage during hot maté consumption. Lat Am. Appl. Res. 2017, 49, 41–45. [ Google Scholar] Da Silveira, T.F.F.; Meinhart, A.D.; Ballus, C.A.; Godoy, H.T. The Effect of the Duration of Infusion, Temperature, and Water Volume on the Rutin Content in the Preparation of Mate Tea Beverages: An Optimization Study. Food Res. Int. 2014, 60, 241–245. [ Google Scholar] [ CrossRef] Shang, J. et al. Structural basis of receptor recognition by SARS-CoV-2. Nature 581, 221–224 (2020). Together with Lan, J. et al., t his study provides one of two early crystal structures of the SARS-CoV-2 RBD–ACE2 complex, showing how the S protein recognizes its receptor.

Zou, X. et al. Single-cell RNA-seq data analysis on the receptor ACE2 expression reveals the potential risk of Boado, L.S.; Fretes, R.M.; Brumovsky, L.A. Effects of Ilex Paraguariensis Polyphenols on Magnesium Absortion and Iron Bioavailability: Preliminary Study. J. Food Res. 2018, 7, 114. [ Google Scholar] [ CrossRef][ Green Version] Lan, J. et al. Structure of the SARS-CoV-2 spike receptor-binding domain bound to the ACE2 receptor. Nature 581, 215–220 (2020). Together with Shang, J. et al., t his study provides one of two early crystal structures of the SARS-CoV-2 RBD–ACE2 complex, revealing how the S protein recognizes its receptor.

Look for more clues & answers

Crovetto, R.M. La Yerba Mate, Maravilla de America, 2nd ed.; Museo de Motivos Argentinos Josè Hernandez: Buenos Aires, Argentina, 1995; pp. 56–67. [ Google Scholar] Muello, A.C. Yerba Mate su Cultivo y Explotacion, 3rd ed.; Editorale Sudamericana: Buenos Aires, Argentina, 1946. [ Google Scholar]