Abstract We derived position–velocity density distribution diagrams along the major (PA = 77°) axis of elliptical planetary nebula NGC 7009 with Keck HIRES [S ii ] 6716/6731 Å doublet spectral images. The average densities main shell and knots from fluxes integrated over line sight indicate a range N e 10 3.4 to 3.9 cm −3 , while local volume fraction resolved in radial velocities show consider...

We measured the mean plane of the Kuiper belt as a function of semi-major axis. For the classical Kuiper belt as a whole (the non-resonant objects in the semi-major axis range 42–48 au), we find a mean plane of inclination im = 1.8 ◦+0.7 −0.4◦ and longitude of ascending node Ωm = 77 ◦+18 −14◦ (in the J2000 ecliptic-equinox coordinate system), in accord with theoretical expectations of the secul...

Optical Fabry-Perot interferometer sensors based on inner air-cavity is featured with compact size, good robustness and high strain sensitivity, especially when an ultra-thin air-cavity is adopted. The typical shape of Fabry-Perot inner air-cavity with reflection mode of operation is elliptic, with minor axis along with and major axis perpendicular to the fiber length. The first reflection surf...

A recent observational result finds that the quenching of satellites in groups at $z=0.08$ has an angular dependence relative to semi-major axis central galaxy. This observation is described as `anisotropic quenching' or `angular conformity'. In this paper I study variation colour a mass limited sample satellite galaxies their angle from major Brightest Cluster Galaxy CLASH clusters up $z\sim0....

BACKGROUND Adenoid cystic carcinoma (ACC) and adenoid basal carcinoma (ABC) are rare in the uterine cervix. ACC is more aggressive than ABC, thus accurate differential diagnosis is important. In this study, we identified cytologic features useful in distinguishing these two tumors for diagnosis. METHODS Three cases of ACC and five cases of ABC were selected for this study. Cervicovaginal smea...

An object's axis of elongation serves as an important frame of reference for forming three-dimensional representations of object shape. By several recent accounts, the formation of these representations is also related to experiences of acting on objects. Four experiments examined 18- to 24-month-olds' (N=103) sensitivity to the elongated axis in action tasks that required extracting, comparing...

In this paper we discuss the reason why the parameters of the Sérsic model best-fitting the major axis light profile of elliptical galaxies can differ significantly from those derived for the minor axis profile. We show that this discrepancy is a natural consequence of the fact that the isophote eccentricity varies with the radius of the isophote and present a mathematical transformation that a...

purpose : to determine the association between astigmatism and spherical refractive error in a clinical population methods : in this cross-sectional study, 2,000 patients who presented to our optometry clinic were enrolled. all were tested for objective refraction with a nidek ar-310a auto refractometer, and non-cycloplegic refraction. for those under 15 years of age, cycloplegic refraction was...

Objectives: The respiratory function is often overlooked in people with Low Back Pain (LBP), while it is one of the factors for the continuation and recurrence of lumbar spine injury. Aim of this study was survay the immediate effect of Respiratory Muscle Sprint-Interval Training (RMSIT) on the plantar pressure variables of athletes with LBP. Methods: This randomized controlled trial was condu...