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We present a measurement of the standard model CP violation parameter sin2 phi(1) based on a 29.1 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson is fully reconstructed as a J/psi K(S), psi(2S)K(S), chi(c1)K(S), eta(c)K(S), J/psi K(L), or J/psi K(*0) decay and the flavor of the accompanying B meson is identified from its decay products. From the asymmetry in the distribution of the time intervals between the two B meson decay points, we determine sin2 phi(1) = 0.99+/-0.14(stat)+/-0.06(syst). We conclude that we have observed CP violation in the neutral B meson system.

We report a determination of the B(0)(d)-&B_(0)(d) mixing parameter Deltam(d) based on the time evolution of dilepton yields in Upsilon(4S) decays. The measurement is based on a 5.9 fb(-1) data sample collected by the Belle detector at KEKB. The proper-time difference distributions for same-sign and opposite-sign dilepton events are simultaneously fitted to an expression containing Deltam(d) as a free parameter. Using both muons and electrons, we obtain Deltam(d) = 0.463+/-0.008 (stat)+/-0.016 (syst) ps(-1). This is the first determination of Deltam(d) from time evolution measurements at the Upsilon(4S). We also place limits on possible CPT violations.

Potato extract (PE), corn extract (CE) and papaya extract (PAE) at concentrations of 25, 50 and 100 mL L-1-1 CE.

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Protocorm like bodies (PLBs) derived from callus of Phalaenopsis utilized sucrose , maltose and sorbitol for their growth in vitro. These carbon sources affected differently and could control PLB growth . On sucrose supplemented medium a few PLBs produced plantlets and most others regenerated yellowish or greenish callus like body (CLB). Almost 80% of unrooted and 58% of rooted plantlets developed yellowish green CLB at the base of plantlets. On maltose supplemented medium, PLBs regenerated PLBs and a few plantlets. In subsequent culture, about 44% of unrooted and 24% of rooted plantlets initiated green PLBs at the base of cultured plantlets. On sorbitol supplemented medium, most of the PLBs developed plantlets and a few additional PLBs. Among the carbon sources tested, sorbitol supported plantlet development the best in vitro and proved to be the most suitable carbon source for plantlet initiation and development from PLB.

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