New sulfate and hydrogen sulfate complexes of metalloporphyrins have been synthesized and crystallographically characterized and their photochemistry examined. Irradiation of [Mn(TPP)],(SO,) and Mn(TPP)(OS03H) (where TPP = 5,10,15,20-tetraphenylporphyrinate(2-)) produces Mn"(TPP) quantitatively, with quantum yields of 7.1 X IO4 and 9.8 X IO-', respectively. In contrast to other manganese oxoani...

We propose a new model for hadrons with quantum mechanical attractive and repulsive interactions sensitive to some spatial correlation length parameter inspired by the Beth-Uhlenbeck nonideal gas (Uhlenbeck Beth, 1937). confront thermodynamics calculated using our corresponding recent lattice data at four different values of baryon chemical potential, <math xmlns="http://www.w3.org/1998/Math/Ma...

1 Department of Neurology (Behavioural Neurology), Mayo Clinic, Rochester, MN 55905, USA 2 Department of Neurology (Movement Disorders), Mayo Clinic, Rochester, MN 55905, USA 3 Department of Neurology (Speech Pathology), Mayo Clinic, Rochester, MN 55905, USA 4 Department of Psychiatry and Psychology (Neuropsychology), Mayo Clinic, Rochester, MN 55905, USA 5 Department of Information Technology,...

A unique conformation of deoxynucleoside triphosphate substrates bound to Escherichia coli DNA polymerase I has been determined by nuclear magnetic resonance techniques. The effects of Mn(I1) bound at the active site of the enzyme on the longitudinal (Ti,‘) and transverse (T;;,‘) relaxation rates of the 01, /3, and y phosphorus atoms and 5 protons of enzyme-bound thymidine 5’.triphosphate (dTTP...

A unique conformation of deoxynucleoside triphosphate substrates bound to Escherichia coli DNA polymerase I has been determined by nuclear magnetic resonance techniques. The effects of Mn(II) bound at the active site of the enzyme on the longitudinal (T1p-1) and transverse (T2p-1) relaxation rates of the alpha, beta, and gamma phosphorus atoms and 5 protons of enzyme-bound thymidine 5'-triphosp...

the effects of combined radiotherapy (rt) and chemotherapy in the severity of cytogenetic alterations expressed as micronucleus (mn) in peripheral blood lymphocytes of patients treated for esophageal cancer was evaluated. to do this, blood was obtained from 23 and 15 esophageal cancer patients scheduled for chemo-radiotherapy and rt alone, respectively, before, during, and after treatment. bloo...

The Indian Ridge System basalt bearing Mn-oxide coatings had todorokite as the major and birnesite as the minor mineral. We posit that microorganisms associated with these basalts participate in the oxidation of Mn and contribute to mineral deposition. We also hypothesized that, the Mn-oxidizing microbes may respond reversibly to pulses of fresh organic carbon introduced into the water column b...