We construct embedded closed minimal surfaces in the round three-sphere S(1), resembling two parallel copies of the Clifford torus, joined by m small catenoidal bridges symmetrically arranged along a square lattice of points on the torus.

Identifying the precise locus of general cognitive ability (g) in the flow of information between perception and action is an important goal of differential psychology. To localize the negative correlation between g and reaction time to a specific processing stage, we administered a speeded number-comparison task to two groups differing in average g. The participants had to respond to two stimu...

In this chapter we study the feasibility of using Turing Machines as a model for the evolution of computer programs. To assess this idea we select, as test problem, the Busy Beaver — a well-known theoretical problem of undisputed interest and difficulty proposed by Tibor Rado in 1962. We focus our research on representational issues and on the development of specific genetic operators, proposin...

Many programmers belive that Turing-based machines cannot think. We also believe in this, however it is interesting to note that the most sophisticated machines are not programmed by human beings. We have only discovered them. In this paper, using well-known Busy Beaver and Placid Platypus machines, we generate further very similar, but not exactly the same machines. We have found a recombinate...

In this paper we propose the general bulk service queueing model for FM/M(a,b)/1/MWV/Br. The batches are served according to FCFS discipline. In which arrival rate, vacation parameter, service rate for busy period, and for vacation period are all considered as trapezoidal fuzzy numbers. The basic idea is to convert all these fuzzy numbers into crisp values by applying Robust ranking Technique. ...

Purpose This paper aims to examine empirically the impact of gender diversity on corporate performance by both comparing different positions occupied female directors boards and their personal-specific characteristics. Design/methodology/approach The examines a sample Italian listed companies during 2006–2015. To deal with endogeneity issues, authors use generalized method moments as an empiric...

Methods A total of 72 patients were included in the audit: 88% were male, 68% were men who have sex with men, 22% were heterosexuals of non-UK origin. This population reflects the wider patient cohort of this busy, city centre Genitourinary Medicine clinic. A retrospective case note analysis was conducted of patients seen in the telephone clinic over an 8 month period from December 2008 until J...