The absolute motion of the South Bismarck Plate was first estimated by Tregoning et al. [1998] from three site velocities estimated from Global Positioning System (GPS) observations. We report an improved estimate of the Euler vector for this plate using site velocities derived from new GPS data which include the velocity of a site located∼25 km from the pole of rotation. The GPS velocities of ...

In higher plants, cytokinesis partitions the cytoplasm of a dividing cell by forming a new cell wall between the two sets of daughter chromosomes. Although conceptually simple, this process involves a sequence of wellorchestrated events, starting with the determination of the division plane before the onset of mitosis (reviewed in Staehelin and Hepler, 1996; Heese et al., 1998; Smith, 1999). A ...

The author contends that sex differentials in childhood mortality in Pakistan are a likely outcome of son preference behavior by parents. Consideration is given to the historical improvement in the female disadvantage in mortality, the neglect of female children, gender and class factors, and son preference and high fertility. Data are from the 1981 Pakistan census and other official surveys....

In higher plants, cytokinesis partitions the cytoplasm of a dividing cell by forming a new cell wall between the two sets of daughter chromosomes. Although conceptually simple, this process involves a sequence of wellorchestrated events, starting with the determination of the division plane before the onset of mitosis (reviewed in Staehelin and Hepler, 1996; Heese et al., 1998; Smith, 1999). A ...

A key element in a gait laboratory is a force plate which may be used to measure the forces and moments applied by the foot onto the walking surface during a gait cycle. While many laboratories have relied solely upon motion data as obtained from using various camera techniques for analysis of gait, it is only with the inclusion of a force plate that the dynamic aspects of gait are appropriatel...

In this study, the newly designed bipolar plate for proton exchange membrane fuel cells (PEMFC) was produced by spray-coating the Ni65Cr15P16B4 metallic glassy alloy on Al plate. The Ni65Cr15P16B4 metallic glass was adopted as a coating material because of its excellent corrosion resistance and the high velocity oxy-fuel (HVOF) spray coating was used for the metallic glass deposition on the Al ...

In higher plants, cytokinesis partitions the cytoplasm of a dividing cell by forming a new cell wall between the two sets of daughter chromosomes. Although conceptually simple, this process involves a sequence of wellorchestrated events, starting with the determination of the division plane before the onset of mitosis (reviewed in Staehelin and Hepler, 1996; Heese et al., 1998; Smith, 1999). A ...

During longitudinal bone growth, chondrocytes within the epiphyseal plate pass through a series of well defined stages (see Brighton, 1978), characterised by changes in proliferation rate, shape and size, and synthesis and deposition of extracellular matrix components (Hunziker and Schenk, 1989). Consequently, the growth plate of the chick (Howlett, 1979) and other species can be divided into s...

Given the enormous number of stars in the universe and the number of confirmed and postulated planets in our galaxy, it is generally agreed that our home planet Earth is not likely to be unique (e.g., Sagan, 1980; Bignami et al., 2005; Hawking and Mlodinow, 2010). But is it? Although the number of known extrasolar planets grows almost by the day, observational bias caused by the technological c...

The surface mechanical boundary conditions for most of our models are shear stress free (free slip), such that plate velocities are driven self-consistently by density contrasts within the mantle (Ricard and Vigny, 1989). The lithosphere in our models is defined rheologically as a relatively stiff layer from the surface to 100 km depth that is “broken” by weak zones of reduced viscosity, as in ...