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Final state interactions effects on kinetic energy sum spectra in nonmesonic we...

We analyze the effect of final state interactions (FSI) on coincidence spectra in nonmesonic hypernuclear weak decay, ΛN → nN, as a function of the kinetic energy sum, EnN = En+ E N, both for np and nn events. Adopting a formalism recently developed, the effects of FSI originated from the interaction between the outgoing nucleons and those in the residual core are included analytically in a very simp...

Solitary frontal ulcer: A syphilitic gumma

We report the case of a 30-year-old woman presenting with a single, deep, asymptomatic frontal ulcer that had developed in the previous two months without preceding trauma. Blood tests revealed reactive Rapid Plasma Reagin and Treponema pallidum hemagglutination assays. The diagnosis of syphilitic gumma was confirmed after histological analysis of the ulcer border. No other manifestations of late syphilis were ...

Intrinsic asymmetry parameter in nonmesonic hypernuclear decay: analytical proo...

We derive general analytical expressions for the evaluation of the intrinsic asymmetry parameter in nonmesonic hypernuclear weak decay, within an independent particle shell model framework. Present formalism is valid for even-even, even-odd and odd-odd core hypernucleus. A standard strangeness-changing weak transition potential with exchange of the complete meson octet (π, η, K, ρ, ω, K*) is...

Use of weathered diesel oil as a low-cost raw material for biosurfactant produc...

This work aimed to investigate the capability of biosurfactant production by Staphylococcus hominis, Kocuria palustris and Pseudomonas aeruginosa LBI, using weathered diesel oil from a long-standing spillage as raw material. The effect of the culture media (Robert or Bushnell-Haas) and of the carbon source (spilled diesel oil or commercial diesel oil) on biosurfactant production was evaluated. Erlenmeyer flasks...

Conventional and microwave-assisted reaction of N-hydroxymethylphthalimide with...

An efficient and easy synthesis of compounds: 2-Phenylaminomethyl-isoindole-1,3-dione (5a), 2-[(2-Clorophenylamino)methyl]-isoindole-1,3-dione (5b), 2-[(3-Clorophenylamino)methyl]-isoindole-1,3-dione (5c), 2-[(4-Clorophenylamino)methyl)-isoindole-1,3-dione (5d), 2-[(2-Fluorophenylamino)methyl]-isoindole-1,3-dione (5e), 2-[(3-fluorophenylamino)methyl]-isoindole-1,3-dione (5f), 2-[(4-Fluorophenylamino)methyl]-iso...

Vancomycin-associated linear IgA bullous dermatosis mimicking toxic epidermal n...

A formalism for weak interactions in nuclei

The neutrino-nucleus cross-section and the muon capture rate are discussed within a simple formalism which facilitates the nuclear structure calculations. The corresponding formulae only depend on four types of nuclear matrix elements, which are currently used in the nuclear beta decay. We have also considered the non-locality effects arising from the velocity-dependent terms in the hadronic current. We show th...

Scattering of GeV electrons in the framework of the relativistic hartree approx...

The high momentum transfer electron-nucleus scattering cross section is evaluated within the plane wave impulse approximation (PWIA) supplemented by the relativistic Hartree approximation (RHA). Binding effects on the struck nucleon are introduced through the scalar and vector meson-exchange fields within the framework of quantum hadrodynamics. This model naturally satisfies the current conservation, with the o...

Multiple cutaneous reticulohistiocytomas in a patient with rheumatoid arthritis

A 64-year-old woman with a long-standing peripheral symmetric polyarthritis with positive rheumatoid serology was evaluated for multiple asymptotic papulonodules of fingers, mentum, lower lip, ears, and eyelids. Histopathologic examination showed a dermal infiltrate composed of histiocytes, multinucleate giant cells with ground-glass cytoplasm, and lymphocytes, suggestive of reticulohistiocytoma. The possibilit...

Viscosities and excess energy of activation for viscous flow for binary mixture...

Kinematic viscosities of binary mixtures composed of tetrahydrofuran with 1-butanol, 2-butanol and 1-chlorobutane have been measured at 283.15, 298.15 and 313.15 K and atmospheric pressure for the whole range of compositions. The dynamic viscosity, the excess viscosity and the excess energy of activation for viscous flow were also calculated. The excess viscosity shows negative deviations from ideal behavior fo...