metal complexes, ml (m=ni, cu, co and zn) of unsymmetrical tetradentate schiff base have been synthesized by the template reaction of the half-units n-(1-hydroxy-2-acetonaphthone)-1-amino-2-phenyleneimine)(hl1) with 2-pyrroleca-rbaldehyde. the complexes have been characterized by elemental analysis, ir, 1h nmr and uv spectroscopy. the crystal structure of the ni(ii) complex has been determine...

We present new spectroscopic observations of Mkn 309, a starburst galaxy with one of the largest WR populations known. A highly super solar metallicity of 12 + log(O/H) ∼ 9.3–9.4 is derived. Using additional objects from Guseva et al. (2000) we analyse a sample of five metal-rich ([O/H] > 0) WR galaxies with the main goal of constraining the basic properties of the massive star populations (IMF...

We present new solutions to tackle the problem of reconstructing a deforming surface viewed in monocular videos without a template, by exploiting the fact that many deforming surfaces are on the local scale approximately rigid and planar. The reconstruction task can then be seen, from bottom up as first multi-plane based pose estimation then dense surface reconstruction from planar samples. In ...

Building an atlas from a set of anatomical data relies on (1) the construction of a mean anatomy (called template or prototype) and (2) the estimation of the variations of this template within the population. To avoid biases introduced by separate processing, we jointly estimate the template and its deformation, based on a consistent statistical model. We use here a forward model that considers...

In this article, a low-cost system for 2D eye gaze estimation with low-resolution webcam images is presented. Two algorithms are proposed for this purpose, one for the eye-ball detection with stable approximate pupil-center and the other one for the eye movements’ direction detection. Eyeball is detected using deformable angular integral search by minimum intensity (DAISMI) algorithm. Deformabl...

Abstract: This paper proposes a novel image alignment algorithm based on rotation-discriminating ring-shifted projection for automatic optical inspection. This new algorithm not only identifies the location of the template image within an inspection image but also provides precise rotation information during the template-matching process by using a novel rotation estimation scheme, the so-calle...

Skin is the most common localization of primary melanoma, however in 2–6% of patients a metastasis of melanoma without a detectable primary tumor is found [1]. This is referred to as melanoma of unknown primary origin (MUP). It usually presents as cutaneous or sub-cutaneous nodules or lymph node metastases [2]. The theories concerning the etiology of MUP include the presence of a melanoma that ...

KEY POINTS Skeletal muscle size and strength decline in older age. The vastus lateralis, a large thigh muscle, undergoes extensive neuromuscular remodelling in healthy ageing, as characterized by a loss of motor neurons, enlargement of surviving motor units and instability of neuromuscular junction transmission. The loss of motor axons and changes to motor unit potential transmission precede a ...