283 As civilization has developed over the past 10,000 years, humankind has learned how to build larger and larger structures; over the past two decades, we have begun to learn how to build smaller and smaller structures. On page 297 of this issue, Paul Rothemund presents a material step forward in this second arena: he describes a stunningly simple and versatile approach to the fabrication, by...

Objective: Although a variety of sexual assault prevention programs are currently available to college health professionals, there is a dearth of information about the effect of these programs on sexual assault victimization rates. Participants: The authors evaluated the efficacy of a sexual assault prevention program for first-year students at a college in the Northeast (N = 1,982). Methods: T...

BACKGROUND AND OBJECTIVES Despite the improvement of the surgical technique and several experiences reported in literature about prosthetic incisional hernioplasty, the prevalence rate of recurrence and of the classic complications has not changed over the years. We analyze our caseload, establishing some technical cornerstones in order to reduce their occurrence. PATIENTS AND METHODS 283 pat...

Cytogenetics studies in 12 specimens of Gymnothorax ocellatus reveled a diploid chromosome number of 2n 42 (16 metacentrics, 18 submetacentrics and 8 acrocentrics). The nucleolar organizer regions were located in a terminal position on the long arm of the chromosome pair number fifteen. Conspicuous blocks of constitutive heterochromatin were observed in the centromeric and pericentromeric regio...