Using results on Hadamard difference sets, we construct regular graphical Hadamard matrices of negative type of order 4m4 for every positive integerm. Ifm > 1, such a Hadamard matrix is equivalent to a strongly regular graph with parameters (4m4, 2m4 + m2,m4 + m2,m4 + m2). Strongly regular graphs with these parameters have been called max energy graphs, because they have maximal energy (as defi...

Among recent philosophers of science, a trend has emerged that has been described elsewhere as a movement beyond objectivism and relativism, Within the field of family therapy, a parallel movement can be observed that has been promoted by the constructivist implications of contemporary cybernetics. Together, these trends have called into question traditional notions of objectivity. In this pape...

Using results on Hadamard difference sets, we construct regular graphical Hadamard matrices of negative type of order 4m for every positive integer m. If m > 1, such a Hadamard matrix is equivalent to a strongly regular graph with parameters (4m, 2m +m, m +m, m +m). Strongly regular graphs with these parameters have been called max energy graphs, because they have maximal energy (as defined by ...

In 1938 Gutman and Gutman' reported raised serum concentrations of acid phosphatase in patients with metastatic carcinoma of the prostate. These serum concentrations were reported also to be raised by prostatic manipulations,2 3 and in particular by rectal examination with or without massage of the prostate.4 6 As a result, medical students have been taught for a long time that blood should not...

This special issue on the effectiveness of occupational therapy services in mental health practice was compiled in an attempt to further build the evidence supporting the profession’s contribution to this practice area. How did we lose our footing in mental health practice when the profession was once considered to be one of the most valued services for people with mental health disorders? In t...

wiener index is a topological index based on distance between every pair of vertices in agraph g. it was introduced in 1947 by one of the pioneer of this area e.g, harold wiener. inthe present paper, by using a new method introduced by klavžar we compute the wiener andszeged indices of some nanostar dendrimers.