We adopted a game-theoretic approach to studying competition in the software market that is dependent on the network effect, i.e., where the success of the software product is mainly affected by the size of its installed base. The primary goals of our research were: to provide insights into competition between a new entrant with a significant presence in foreign countries and a home-grown incum...

We report Very Large Telescope observations of 11 lensed quasars, designed to measure the redshifts of their lens galaxies. We successfully determined the redshifts for seven systems, five of which were previously unknown. The securely measured redshifts for the lensing galaxies are: HE0047−1756 z = 0.408; PMNJ0134−0931 z = 0.766; HE0230−2130 z = 0.522; HE0435−1223 z = 0.455; SDSS0924+021 z = 0...

OBJECTIVE To determine which particular depressive symptom scales, derived from three scales, predicted poorer prognosis in persons with acute coronary syndrome (ACS). METHODS Hospitalized ACS patients (n=408) completed questionnaires (depression, vital exhaustion). Mokken scaling derived unidimensional scales. Major cardiac events (cardiac mortality, ACS, unplanned revascularization) were as...

Abstract Introduction The literature has not examined the perceived differences of sexual consent across people diverse social groups in great depth. Objectives This study explored how communication is for various gender identities and orientations. Methods College students were recruited to participate a survey by which they asked respond cisgender, heterosexual version or minority vignettes b...

Bidesh K. Bera, Chittaranjan Hens, Sourav K. Bhowmick, Pinaki Pal, and Dibakar Ghosh Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata-700108, India Department of Mathematics, Bar-Ilan University, Ramat Gan, Israel 3 Department of Electronics, Asutosh College, Kolkata 700 026, India 4 Department of Mathematics, National Institute of Technology, Durgapur 713209, India. ...

Traditional transvenous pacemakers have been associated with worsening tricuspid valve (TV) function due to lead-related leaflet impingement, as well ventricular dysfunction related electromechanical dyssynchrony from right pacing. The effect of leadless pacing on and valvular has not established. To describe the impact In patients who underwent a pacemaker implant at Duke University Hospital b...

One hundred sixty-nine Zimbabwean women were studied to determine whether the use of intravaginal practices (cleaning with the fingers, wiping the vagina, and inserting traditional substances) are associated with disturbances of vaginal flora and acquisition of sexually transmitted diseases (STDs). Subjects were interviewed and received counseling and a pelvic examination at enrollment, 1 month...