This paper shows how to improve the classic multichannel slotted ALOHA protocols by judiciously using redundant transmissions. The focus is on user-oriented requirements: a deadline along with a permissible probability of failing to meet it. Subject to satisfying those, maximization of capacity is the optimization goal. When there is no success/failure feedback prior to the deadline, the use of information dispersal with some redundancy provided by error-correcting codes for the data in conjunction with a replicated, separately transmitted synchronization preamble, is proposed. It is shown to sharply reduce the overhead resulting from the use of shorter packets and to significantly increase capacity. When the deadline permits several transmission-feedback rounds, we propose a novel replicationbased retransmission policy: all attempts except the final one entail the transmission of a single or very few copies, and a larger number of copies are transmitted in the final attempt. This sharply increases channel capacity, even with a single transmitter per station. The proposed approaches are particularly suitable for high-bandwidth satellites with on-board processing.

Leclercia adecarboxylata infection is rarely reported in the context of human infections. In the scant cases reported in the literature, it usually involves individuals who are immunocompromised with infections of a polymicrobial nature. Recently, data have begun to accumulate suggesting that L. adecarboxylata is a pathogen associated with water environments. We review the literature regarding L. adecarboxylata infections and present a case of cellulitis and soft-tissue infection in the foot of a healthy surfer. CASE REPORT

Level 4--case series.

Sclerosing osteomyelitis of Garré continues to be a puzzling entity, with a nonspecific clinical description and course, an obscure pathogenesis, and no consensus on a predictable and helpful method of treatment. The proposed treatment options according to the literature are observation, analgesics and NSAIDs, and bone curettage. Here we present a 15-year-old girl treated by resection of a 12 cm-long lesion after failed conservative treatment, followed by bone transport using a circular external fixator. This treatment method has not been described previously for this condition. The duration of bone transport was 3 months, and the total duration of the frame treatment was 12 months. After hardware removal, and at 2.5-year follow-up, the patient was asymptomatic and achieved good functional results. To the best of our knowledge, this is the first description of bone resection and transport for the treatment of this condition, even though it is well described for the treatment of chronic osteomyelitis and other conditions necessitating bone resection. On the basis of this case we suggest that resection and bone transport using a circular external fixator for the treatment of sclerosing osteomyelitis of Garré might be an effective and safe method. Of course, being a rare entity, large cohorts are difficult to obtain, and more data and longer follow-up are required to form a convincing recommendation. Level IV evidence.