Do hostile takeovers reduce extramarginal wage payments?

Hostile takeovers may have significant implications for long-term employment contracts if they facilitate the opportunistic expropriation of extramarginal wage payments. We test the expropriation hypothesis by studying the relationship between proxies for extramarginal wage payments and subsequent hostile takeover activity. This paper improves on existing research by using firm- and establishment-level data from a salary survey of employers. In addition, we observe characteristics of wage and employment structures both before and after the occurrence of a hostile takeover and hence can see whether the data are consistent with reductions in extramarginal wage payments following such takeovers. Results from this ex post experiment provide evidence consistent with the hypothesis that hostile takeovers result in reductions of extramarginal wage payments to more-tenured workers, mostly through cutbacks in senior positions at firms with relatively steep wage profiles.Consolidation and merger of corporations ; Wages

The role of freestream turbulence scale in subsonic flow separation

The ojective of this work is the clarification of the role of freestream turbulence scale in determining the location of boundary layer separation. An airfoil in subsonic wind tunnel flow is the specific case studied. Hot-film and hot-wire anemometry, liquid-film visualization and pressure measurements are the principal diagnostic techniques in use. The Vanderbilt University subsonic wind tunnel is the flow facility being used

The role of freestream turbulence scale in subsonic flow separation

The clarification of the role of freestream turbulence scale in determining the location of boundary layer separation is discussed. Modifications to the test facility were completed. Wind tunnel flow characteristics, including turbulence parameters, were determined with two turbulence generating grids, as well as no grid. These results are summarized. Initial results on the role of scale on turbulent boundary layer separation on the upper surface of an airfoil model are also discussed

Zonal flows and reversals of cortically confined active suspensions

At sufficiently high concentrations, motile bacteria suspended in fluids exhibit a range of ordered and disordered collective motions. Here we explore the combined effects of confinement, periodicity and curvature induced by the active motion of E. coli bacteria in a thin spherical shell (cortex) of an oil-water-oil (O/B/O) double emulsion drop. Confocal microscopy of the bacterial flow fields shows that at high density and activity, they exhibit azimuthal zonal flows which oscillate between counterclockwise and clockwise circulating states. We characterize these oscillatory patterns via their Fourier spectra and the distributions of their circulation persistence times. To explain our observations, we used numerical simulations of active particles and characterize the two-dimensional phase space of bacterial packing fraction and activity associated with persistent collective motions. All together, our study shows how geometric effects lead to new types of collective dynamics

Microwave Spectroscopy

Contains reports on five research projects.United States Army Signal Corps (Contract DA36-039-sc-74895

Magnetotransport properties of individual InAs nanowires

We probe the magnetotransport properties of individual InAs nanowires in a field effect transistor geometry. In the low magnetic field regime we observe magnetoresistance that is well described by the weak localization (WL) description in diffusive conductors. The weak localization correction is modified to weak anti-localization (WAL) as the gate voltage is increased. We show that the gate voltage can be used to tune the phase coherence length ($l_\phi$) and spin-orbit length ($l_{so}$) by a factor of $\sim$ 2. In the high field and low temperature regime we observe the mobility of devices can be modified significantly as a function of magnetic field. We argue that the role of skipping orbits and the nature of surface scattering is essential in understanding high field magnetotransport in nanowires

Studies on factors influencing conception rate in rural cattle

The data of 14,937 farmers spread over 29 tehsils in 15 districts of six Indian states revealed mean conception rate as 55.96±0.31 %. State wise conception rate recorded in Bihar was 51.08±0.73%; Jharkhand; 62.03±0.63%; Maharashtra, 56.64±0.74%; Odisha, 59.24±0.91%; Punjab, 47.11±1.03%; Uttar Pradesh, 54.70±0.77% respectively, which was highly significant between the states. The education level of center in-charge, economic status of farmers, animal breed, animal parity, AI sequence and sire breed had significant effect on conception rate while effect of AI season did not significantly affect conception rate in rural animals across the states studied. It was recommended that due consideration need be given to consider effect of significant factors affecting conception rates while planning for improving conception rate in rural animals

The IDA3 adapter, required for intraflagellar transport of I1 dynein, is regulated by ciliary length

Axonemal dyneins, including inner dynein arm I1, assemble in the cytoplasm prior to transport into cilia by intraflagellar transport (IFT). How I1 dynein interacts with IFT is not understood. We take advantage of the Chlamydomonas reinhardtii ida3 mutant, which assembles the inner arm I1 dynein complex in the cytoplasm but fails to transport I1 into the cilium, resulting in I1 dynein-deficient axonemes with abnormal motility. The IDA3 gene encodes an ∼115-kDa coiled-coil protein that primarily enters the cilium during ciliary growth but is not an axonemal protein. During growth, IDA3, along with I1 dynein, is transported by anterograde IFT to the tip of the cilium. At the tip, IDA3 uncouples from IFT and diffuses within the cilium. IFT transport of IDA3 decreases as cilia lengthen and subsides once full length is achieved. IDA3 is the first example of an essential and selective IFT adapter that is regulated by ciliary length. </jats:p