Before we address the question of which properties the proposed signature schemes lack, we enumerate desirable properties of any digital signature system: 1. Authenticity: A digital signature should be authentic, in that the signature will convince the recipient that the claimed author deliberately signed the document. It should be computationally infeasible for a third party to forge the autho...

1 Laboratoire de Biomembrane et de signalisation Cellulaire. Faculté des Sciences et Techniques, Université d’Abomey-Calavi, 01 BP 526 Cotonou, Bénin. 2 Laboratoire de Recherches en Biologie Appliquée. Ecole Polytechnique d’Abomey-Calavi, Université d’Abomey-Calavi, 01 BP 2009 Cotonou, Bénin. 3 Laboratoire de Biologie et de Typage Moléculaire en Microbiologie. Faculté des Sciences et Techniques...

MEDICAL MEMORANDA Enteric Intussusception Presenting as a Cystic Abdominal Tumour. IAN W. MACPHEE, F.R.C.S. .................... 525 Gastro-gastric Intussusception Produced by Pedunculated Intragastric Tumour. ALAN THOMSON, F.R.C.S.Ed .... ...... 525 M ultiple Intussusceptions. STEWART FEGGCETTER, M.S., F.R.C.S. ... 526 Ileo-colic Intussusception of Traumatic Origin. JAMES COOK, F.R.C.S.Ed., F....

Abstract. Objective: The authors compared collegiate athletes and nonathletes to see whether there were significant differences in the perceived levels of social connectedness, self-esteem, and depression and if an interaction among the variables of athlete status, gender, GPA, BMI, and levels of weekly exercise and sleep were associated with depression symptomatology. Participants: Participant...

The bacteriocin piscicocin CS526 was inactivated by proteolytic enzymes, was stable at 100 degrees C for 30 min, had a pH range of 2 to 8, and was active against Enterococcus, Listeria, Pediococcus, and Leuconostoc. The N-terminal sequence was YGNGL, not the YGNGV consensus motif common in class IIa bacteriocins (alternate residues underlined). The molecular mass of piscicocin CS526, which had ...