A series of biphenyl-2,2'-diylbis(diarylmethanol)s 3, which have two kinds of aryl groups at the bay region, were efficiently obtained by integrated flow microreactor synthesis. The diols 3NO/NX are the precursors of unsymmetric biphenylic dications 2NO/NX2+, which are transformed into the corresponding dihydrophenanthrenes 1NO/NX via 2NO/NX+• upon reduction, when they exhibit two-stage color c...

The diophantine equation x3 _ 3xy2 _y3 = ?3no 17 n l9n2 is completely solved as follows. First, a large upper bound for the variables is obtained from the theory of linear forms in p-adic and real logarithms of algebraic numbers. Then this bound is reduced to a manageable size by p-adic and real computational diophantine approximation, based on the L3-algorithm. Finally the complete list of sol...

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In this Editorial I want to comment on eight recent articles that can help us to better understand still controversial matters related to total knee arthroplasty (TKA). In this Editorial I want to comment on eight recent articles that can help us to better understand still controversial matters related to total knee arthroplasty (TKA).

Using in situ polarization modulation infrared reflection absorption spectroscopy (PM-IRAS) and conventional IRAS techniques, the adsorption of NO on Pd(111) was studied from ultra-high-vacuum (UHV) conditions to 400 mbar. New monomeric and non-monomeric high-coverage NO adsorption states were observed at 400 mbar. Initial NO adsorption at 600 K and subsequent cooling in the presence of 400 mba...

Polarographic studies have been carried out recently on several carbonyl1 and carhonyl-nitrosyl 2 complexes with the aim of obtaining information on the electronic structure of the M — CO and M — NO bonds. In the reduction of carbonyl complexes the electronic change is localized on a prevailing central metal orbital. In the nitrosyl complexes, however, it is the JTNO 2 orbital which is involved...