哎呦 发表于 2025-3-28 18:19:52
N. Stolterfohtmaterial: Bias analysis quantifies the influence of systematic error on an epidemiology study’s estimate of association. The fundamental methods of bias analysis in epi- miology have been well described for decades, yet are seldom applied in published presentations of epidemiologic research. More recipher 发表于 2025-3-28 19:26:13
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Coincidence measurements of electron capture and loss in ion-atom collisions,st partially stripped projectiles which bring weakly bound electrons into the collision, projectile ionization can also contribute to the observed electron spectra. At lower impact velocities, electron capture by the projectile ion becomes important and higher order processes, often referred to as t合乎习俗 发表于 2025-3-29 10:48:02
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,New aspects of simultaneous projectile and target ionization in H0 (0.5MeV/1.0MeV) → He — collisionnce with the outgoing H.. A comparison is given between the coincident and non-coincident cross sections for H. and H. impact and PWBA-calculations of the DDCS for electron emission. It is shown that the contribution of simultaneous projectile and target ionizations to the coincident electron emissiJubilation 发表于 2025-3-30 03:25:49
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