We extend results first announced by Franz et al. (1998), that identified vA 351 = H346 in the Hyades as a multiple star system containing white dwarf. With Hubble Space Telescope Fine Guidance Sensor fringe tracking and scanning, more recent speckle observations, all spanning 20.7 years, we establish parallax, relative orbit, mass fraction for two components, with period, $P=2.70$y total 2.1 M...

Observations by the MACHO collaboration indicate that a signi cant fraction of the galactic halo dark matter may be in form of compact objects with masses M 0:5M . Identi cation of these objects as red or white dwarfs is problematic due to stringent observational upper limits on such dwarf populations. Primordial black hole (PBH) formation from pre-existing density uctuations is facilitated dur...

this study was performed to evaluate relationships among morphological traits and use of the traits to describe iranian cannabis accessions. results of the anova for the measured traits excluding the number of lateral inflorescent, displayed significant differences among accessions. the lowest plant heights were observed in sero and saqez (respectively 81.20 and 78.80) and the highest values we...

Stars whose masses are of the same order as that of the sun (M ) can find a final equilibrium state either as a white dwarf or, apparently, (after collapse and ejection of material) as a neutron star. These matters have been nicely discussed in the lectures of Hewish and Salpeter. But, as they have pointed out, for larger masses no such equilibrium state appears to be possible. Indeed, many sta...

the copper level in the serum of 1280 and liver of 200 goats raised in the mountain areas of khuzestanprovince, iran were determined. copper, molybdenum and iron content of soil and pastures as well as sulfurcontent of the pastures were seasonally estimated. mean serum copper levels of goats in behbahan,ramhormoz, eizeh and masjed-soleyman districts were 8.14 ± 0.21, 1.98 ± 0.12, 7.74 ± 0.11 an...

Scaling relationships between body mass and gut capacity are valuable to predicting digestive efficiency. Interspecific scaling relationships between body mass and gut capacity have consistently estimated a slope of 1.0; however, intraspecific scaling relationships between body mass and gut capacity have been highly variable. We examined the influence of demands of growth and production on scal...

The effect of a short period of elevated temperature, or heat shock, on protein synthesis was investigated in 2-day-old seedlings of jack pine (Pinus banksiana Lamb.), loblolly pine (P. taeda L.), lodgepole pine (P. contorta Dougl.), black spruce (Picea mariana (Mill.) BSP), and white spruce (P. glauca (Moench) Voss.). In all species, heat shock led to increased [(35)S]methionine incorporation ...

Our previous theoretical study of the impact of an accreting envelope on the thermal state of an underlying white dwarf (WD) has yielded equilibrium core temperatures, classical nova ignition masses and thermal luminosities for WDs accreting at time averaged rates of 〈Ṁ〉 = 10−11 −10M⊙ yr−1. These 〈Ṁ〉’s are appropriate to WDs in cataclysmic variables (CVs) of Porb . 7 hr, many of which accrete s...

Andrew Gould (Ohio state University) and B. Scott Gaudi (Ohio state University) 5 Using the technique of gravitational microlensing, SIM Lite will conduct a representative census of all compact Galactic objects from brown dwarfs to black holes, including white dwarfs, neutron stars, and main sequence stars. The masses of these objects will be derived from a combination of precise measurement of...

background patients presenting with a mass require tissue biopsy for histological diagnosis and treatment. fine needle aspiration (fna) is offered as an atraumatic, well tolerated, and inexpensive method for obtaining a biopsy from these lesions. objectives in this study we evaluated the accuracy of fna as an atraumatic method among patients with nonthyroidal masses for diagnosis of neoplastic ...