OBJECTIVES To determine the relationship between manufacturer-related financial ties among investigators of published drug trials and rates of discrepant registered and published primary trial outcomes. DESIGN Cross-sectional study. SETTING Human subjects drug trials published in 'core clinical' MEDLINE journals in 2013. PRIMARY AND SECONDARY OUTCOME MEASURES The primary study endpoint wa...

this chapter I review empirical studies directly testing the hypotheses of m y 1973 paper " T h e Strength of Weak Ties" (hereafter "SWT") and work that elaborates those hypotheses theoretically or uses them to suggest new empirical research not discussed in my original formulation. Along the way, I will reconsider various aspects of the theoretical argument, attempt to plug some holes, and bro...

Despite many successes with teleoperated robotic surgical systems, some surgeons feel that the lack of haptic (force or tactile) feedback is detrimental in applications requiring fine suture manipulation. In this paper, we study the difference between applied suture forces in three knot tying exercises: hand ties, instrument ties (using needle drivers), and robot ties (using the da Vinci™ Surgi...

We analyze the semileptonic Bc → B∗ ull decay in the frame work of the Standard Model. We calculate the Bc to B ∗ u transition form factors in QCD sum rules. Analytical expressions for the spectral densities and gluon condensates are presented. The branching ratio of the Bc → B∗ ull decay is calculated, and it is obtained that this decay can be detectable at forthcoming LHC machines. PACS numbe...

The independent helicity amplitudes in the Λb → Λl+l− decay in the standard model and its minimal extension, i.e., with the new vector type interactions, are calculated. We calculate various asymmetry parameters characterizing the angular dependence of the differential decay width for the cascade decay Λb → Λ(→ a + b)V ∗(→ l+l−) with polarized and unpolarized heavy baryons. The sensitivity of t...

The social networks literature suggests that ties must be maintained to retain value. In contrast, we show that reconnecting dormant ties—former ties, now out of touch—can be extremely useful. Our research prompted Executive MBA students to consult their dormant contacts about an important work project; outcomes compared favorably to those of their current ties. In addition, reconnecting previo...