Merrifield laboratory: Last member standing

Mating Type Determination in Tetrahymena: Last Man Standing

Tetrahymena, a single-celled protist, is a eukaryote, just like you and me. But that’s about where the similarity ends. Each Tetrahymena cell contains not one, but two nuclei. The diploid germline nucleus remains transcriptionally silent throughout asexual reproduction, while the somatic nucleus is transcriptionally active. Most especially, Tetrahymena do sex differently from us—there are not t...

Conversations on dying: giving a family member the last word.

Power electronics design laboratory exercise for last-year M.Sc students

This paper presents a project task for power electronics students at Chalmers univeristy of technology, Göteborg, Sweden, based on a flyback test board. The board is used in the course Power Electronics 2. In the project task, the students design snubber circuits, improve the control of the output voltage, improve the gate drive of the main MOSFET transistor and study the influence of stray ind...

Tricyclic graphs with maximum Merrifield-Simmons index

It is well known that the graph invariant, ‘the Merrifield–Simmons index’ is important one in structural chemistry. The connected acyclic graphs with maximal and minimal Merrifield–Simmons indices are determined by Prodinger and Tichy [H. Prodinger, R.F. Tichy, Fibonacci numbers of graphs, Fibonacci Quart. 20 (1982) 16–21]. The sharp upper and lower bounds for theMerrifield–Simmons indices of u...

On a conjecture of Merrifield and Simmons

On page 144 of (3], a (see Gutman[l]), formulated as follows: