Development of principles for the controlled autolysis of Escherichia and Salmonella

The autolysis of Escherichia and Salmonella, depending on the conditions of the medium where the cultivation and lysis of the bacteria took place, was studied. The study revealed that the autolysis of these bacteria was most intensive if lysis was induced at the moment when the culture achieved the maximum specific growth rate, as well as in case when the extreme conditions were maintained in the medium during the autolytic process. Approaches to controlling the process of the induced autolysis of Escherichia and Salmonella were proposed and substantiated.     

A longitudinal study of AIDS conversations between mothers and adolescents

This paper presents the results of a study on the introduced, free-ranging patas monkey population of Southwestern Puerto Rico (SWPR). It describes information on the population size, social group composition, diet, daily ranging patterns, and patas home range during a 3 year period. The patas monkey population in the study area consisted of approximately 120 individuals in four heterosexual groups and several all-male bands. Within their home ranges (26.8 km2), the population density was 4.47 individuals/km2. Home range size among the population's four heterosexual groups varied from 3.72 km2 to 15.39 km2, and minimum daily distance traveled ranged from 0.8-2.0 km. In general, the social structure and mating system of this population parallels what has been described for African populations. However, habitat use, ranging behavior, and the quality of intergroup interactions suggests that patas of this population exhibit territorial behavior.