In [7], Tits classified spherical buildings of rank at least three. In the addenda of [7], he introduced the Moufang property for buildings and observed that with only the results of Chapter 4 of [7] one could show that an irreducible spherical building of rank at least three and all of its irreducible residues of rank at least two must satisfy the Moufang property. Tits and the author have rec...

This study evaluated the influence of irrigation tip, root canal curvature and final apical diameter on periapical debris and irrigant extrusion during root canal instrumentation. After being classified as mildly or moderately curved, the mesiobuccal root canals of 90 human molars were instrumented. The teeth were allocated into three groups according to the used needle type: a flat open-end ne...

Preventive surgical repair of the moderately dilated ascending aorta/aortic root in patients with bicuspid aortic valve (BAV) is controversial. Most international reference centers are currently proposing a proactive approach for BAV patients with a maximum ascending aortic/root diameter of 45 mm since the risk of dissection/rupture raises significantly with an aneurysm diameter >50 mm. Current...

--Total height, annual height growth, root collar diameter, total number of branches and total number of buds around the leader bud were recorded at age 6. The experimental material was included 136 half-sib families originating from stone pine natural populations from the Carpathian Mountains. Population samples were included in a randomized complete block experiment with four replications and...

A study was carried out to evaluate the use of changes in hair root morphology in the assessment of protein-calorie malnutrition (PCM) among a group of black West Indian children. The following five hair root characteristics were measured: percentage of anagen (the growing phase), percentage of telogen (the resting phase), percentage of atrophy, diameter of anagen bulbs, and shaft diameter. Sig...

BACKGROUND AND AIMS Root soil penetration and path optimization are fundamental for root development in soil. We describe the influence of soil strength on root elongation rate and diameter, response to gravity, and root-structure tortuosity, estimated by average curvature of primary maize roots. METHODS Soils with different densities (1·5, 1·6, 1·7 g cm-3), particle sizes (sandy loam; coarse...

OBJECTIVES We sought to examine whether contrast-enhanced multidetector row computed tomography (MDCT) allows prediction of X-ray angiographic planes for the root angiogram in the context of transcatheter aortic valve implantation. BACKGROUND Understanding of aortic root orientation relative to the body axis is critical for precise positioning of the stent/valve during transcatheter aortic va...

STUDY DESIGN A retrospective study PURPOSE This study examined the reliability of the MRI findings in detecting symptomatic extraforaminal disc herniation in the lumbar spine. OVERVIEW OF LITERATURE There are no reports of the characteristics and reliable MRI findings of extraforaminal disc herniation. METHODS Thirty age-and gender-matched asymptomatic volunteers and 30 patients with symp...

In this paper, we focus on deriving low-diameter networks, beginning with D = 2, the next best value to that of the complete network, and proceeding to somewhat larger (constant) values leading to more economical networks. We show that perfect difference networks (PDNs), which are based on the mathematical notion of perfect difference sets, offer a diameter of 2 in an asymptotically optimal man...