Spring Term 2006 ii ACKNOWLEDGMENTS There are many people who I wish to acknowledge and thank for their timeless support and help. First, thank you to Dr. ElAarag for guiding me throughout the process and providing thoughtful insight. Thank you also to all of the professors who spoke with me while I tried to decide my topic. Next, thank you to my friends, who have remained on amicable terms wit...

Approaches to the post-retirement phase of life have undergone considerable change during the last decades. Until the 1970s most people worked until age 65; early exit was due to physical or mental impairment. Retirement marked the beginning of old age, a stage of life characterized by disengagement and loss (Covey, 1988) and by a role-less state (Burgess, 1960). Older persons needed to accept ...

The diagnosis of severe retardation offers little difficulty. The behavior of the infant in the office and the developmental history will establish the diagnosis. The imbecile and idiot (I.Q. below 50) are unable to do what the average child half their age can do. It takes them 2, 3, 4, or more years to learn what the normal infant learns in 1 year. Motor development is retarded and efforts at ...

Two pygmy chimpanzees (Pan paniscus) have spontaneously begun to use symbols to communicate with people. In contrast to common chimpanzees (Pan troglodytes) using the same communicative system, the pygmy chimpanzees did not need explicit training in order to form referential symbol-object associations. Instead, they acquired symbols by observing others use these symbols in daily communications ...

With the exception of post-exposure prophylaxis for reported rape, no preventive strategy addresses the choice disabled - those who might like to benefit from AIDS prevention but who are unable to do so because they do not have the power to make and to act on prevention decisions. In southern African countries, where one in every three has been forced to have sex by the age of 18 years, a very ...

Results of previous investigations indicated that one of the early and essential events occurring in the apical meristem of Sinapis alba L. during the transition to flowering is the release to mitosis of the G(2) nuclei; the trigger to mitosis is generated in the leaves and its movement out of the leaves begins around 16 hours after the start of the inductive treatment. The mitotic wave in the ...