منابع مشابه
Balls on the Lawn
Abstract: In the "tennis ball" problem we are given successive pairs of balls numbered (1,2), (3,4),... At each stage we throw one ball out of the window. After n stages some set of n balls is on the lawn. We find a generating function and a closed formula for the sequence 3,23,131,664,3166,14545,65187,287060,1247690,..., the n-th term of which gives the sum over all possible arrangements of th...
متن کاملReply to Gangestad ’ s ( 2016 ) Comment on Wood , Kressel , Joshi , and Louie ( 2014 )
Pillsworth, E. G., & Haselton, M. G. (2006). Male sexual attractiveness predicts differential ovulatory shifts in female extra-pair attraction and male mate retention. Evolution and Human Behavior, 27, 247–258. Roney, J. R., & Simmons, Z. L. (2013). Hormonal predictors of sexual motivation in natural menstrual cycles. Hormones and Behavior, 63, 636–645. Simonsohn, U., Nelson, L. D., & Simmons, ...
متن کاملLawn mower-related injuries to children.
Lawn mower-related injuries to children are relatively common and can result in severe injury or death. Many amputations during childhood are caused by power mowers. Pediatricians have an important role as advocates and educators to promote the prevention of these injuries.
متن کاملManagement of lawn mower injuries to the foot and ankle.
Seventy consecutive patients treated for lawn mower injuries to the foot and ankle were reviewed to determine optimal treatment, functional results, and complications. Injuries were classified into 1 or more functional-anatomical zones (I, digits; II, dorsum; III, plantar nonweight-bearing surface; IV, heel; and V, ankle) for a total of 96 injuries. Thirty-one patients were available for follow...
متن کاملAutonomous Lawn Care Applications
This robot is designed to test the practicality of constructing an autonomous lawn care system. It will also allow experimentation with several technologies and help to investigate their practical applications. The first prototype of this platform will use an RF emitting wire as a containment field, random walk programming to control obstacle and field limit boundary reactions, and a linear mot...
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ژورنال
عنوان ژورنال: The Journal of Infectious Diseases
سال: 2006
ISSN: 0022-1899,1537-6613
DOI: 10.1086/508553