Is the solar cycle still a puzzle?

The sylvatic cycle of Trypanosoma cruzi: a still unsolved puzzle.

The K veim response: still useful, still a puzzle.

Experimental Analysis of a Vertical, Double-Effect Diffusion Solar Still

Congenital dyserythropoietic anemias: a still unsolved puzzle.

Dyserythropoiesis was the term used, for the first time by Crookston et al. in 19661 and later by Heimpel and Wendt,2 to indicate a congenital defect in erythropoiesis. However this term now refers to any alteration of the normal differentiation-proliferation pathway of the erythroid lineage. It incorporates both morphologic and kinetic aspects of erythropoiesis (erythroid lineage failure) and ...

Puzzle Geometry and Rigidity: the Fibonacci Cycle Is Hyperbolic

We describe a new and robust method to prove rigidity results in complex dynamics. The new ingredient is the geometry of the critical puzzle pieces: under control of geometry and “complex bounds”, two generalized polynomial-like maps which admits a topological conjugacy, quasiconformal outside the filled-in Julia set are, indeed, quasiconformally conjugated. The proof uses a new abstract remova...