On a clear June day in 1975, Bob Buchanan and two Oslo colleagues pulled up water samples from a lake in Norway, examining the microorganisms growing at various depths. “When we got to 6 meters,” Buchanan recalls, “there was a band of Chlorobium growing,” referring to a genus of green bacteria (now called Chlorobaculum) that belongs to a unique class of organisms called photolithotrophs. These ...

We study certain similarity solutions of the Benjamin-Ono-Burgers (BOB) equation and their role in the asymptotic behavior of the general solution. For small initial data in L 1 (R) we prove that a solution of the BOB equation exists in BC(R + ; L 1 (R)) and depends continuously on its initial data. Results about existence, uniqueness, regularity, and spatial asymptotics of solutions of a simil...

Robert (Bob) Farrell Stewart passed away on 16 September 2015. Born and raised in Seattle, Bob obtained his BA in Chemistry from Carleton College in Minnesota in 1958. It was there he met classmate Janet Trussell, who became his wife in 1959, and together they went to Pasadena where Bob obtained his PhD in Chemistry from Caltech in 1963. Bob’s mentor there was Norman Davidson, and his thesis ti...

We consider a setup in which the channel from Alice to Bob is less noisy than the channel from Eve to Bob. We show that there exist encoding and decoding which accomplish error correction and authentication simultaneously; that is, Bob is able to correctly decode a message coming from Alice and reject a message coming from Eve with high probability. The system does not require any secret key sh...

The protocol is, however, susceptible to a man-in-the-middle attack [3], in which the adversary (Eve) intercepts a message from Alice and creates a new message to send to Bob (Fig.1). Eve performs the exchange with Alice using the original message, while Bob performs the exchange using the newly created message. At the final stage, Eve has the original message in decrypted form, while Bob has t...

Three different quantum cards which are non-orthogonal quantum bits are sent to two different players, Alice and Bob, randomly. Alice receives one of the three cards, and Bob receives the remaining two cards. We find that Bob could know better than Alice does on guessing Alice’s card, no matter what Bob chooses to measure his two cards collectively or separately. We also find that Bob’s best st...