In the course of several trips to Argentina I had the opportunity of collecting specimens of Acrorbis petricola Odhner,1937, Biomphalaria orbignyi Paraense, 1975, B. peregrina (Orbigny, 1835), B. tenagophila (Orbigny, 1835) Lymnaea viatrix Orbigny, 1835, Antillorbis nordestensis (Lucena, 1954), B. intermedia (Paraense & Deslandes, 1962), B. oligoza Paraense, 1974, B. straminea (Dunker, 1848), D...

The possibility of X(1835) discovered by BESII as a 0−+ glueball is studied in this paper. The decay rates of X(1835) → pp̄, V V are associated with gluon spin contents of proton and vector mesons. Estimations of the decay rates of X(1835) → V V, γV, γγ and the cross sections of γγ → X(1835) → f and h1+h2 → X(1835)+... are presented.

The possibility of X(1835) discovered by BESII as a 0−+ glueball is studied in this paper. The decay rates of X(1835) → pp̄, V V are associated with gluon spin contents of proton and vector mesons. Estimations of the decay rates of X(1835) → V V, γV, γγ and the cross sections of γγ → X(1835) → f and h1+h2 → X(1835)+... are presented.

In the course of several trips to Peru I had the opportunity of collecting topotypic specimens of Biomphalaria andecola (Orbigny, 1835), B. helophila (Orbigny, 1835), B. pucaraensis (Preston, 1909), Drepanotrema limayanum (Lesson, 1830), D. kermatoides (Orbigny, 1835), and Lymnaea viatrix Orbigny, 1835, besides B. tenagophila (Orbigny, 1835), Helisoma trivolvis (Say, 1817), H. duryi (Wetherby, ...

In this article, we take the point of view that the X(1835) be a baryonium state and calculate its mass within the framework of the QCD sum rules approach. The numerical value of the mass of the X(1835) is consistent with the experimental data. There may be some baryonium component in the X(1835) state. PACS number: 12.38.Aw, 12.38.Qk

The Diptera genus-group names of Pierre-Justin-Marie Macquart are reviewed and annotated. A total of 399 available genus-group names in 69 families of Diptera are listed alphabetically, for each name giving author, year and page of original publication, originally included species, type species and method of fixation, current status of the name, family placement, and a list of any emendations o...

In this article, we take the point of view that the X(1835) be a baryonium state and calculate its mass within the framework of the QCD sum rules approach. The numerical values of the X(1835) are consistent with the experimental data. There may be some baryonium component in the X(1835) state. PACS number: 12.38.Aw, 12.38.Qk

In this article, we take the point of view that the X(1835) be a baryonium state and calculate its mass within the framework of the QCD sum rules approach. The numerical values of the X(1835) are consistent with the experimental data. There must be some baryonium component in the X(1835) state. PACS number: 12.38.Aw, 12.38.Qk

In the course of a trip to Ecuador I had the opportunity of collecting topotypic specimens of the following nominal species of pulmonate molluscs: Biomphalaria cousini Paraense, 1966; Planorbis equatorius Cousin, 1887; P. canonicus Cousin, 1887; Lymnaea cousini Jousseaume, 1887 and P. boetzkesi Miller, 1879. Additional findings were: Helisoma trivolvis (Say, 1817), Biomphalaria peregrina (Orbig...