—The taxonomy of calyptraeid gastropods is made difficult by their morphologically simple, plastic shells and the numerous instances of morphological convergence within the family. The small speckled species of Crepidula from the West Atlantic have all previously been referred to as C. convexa Say, 1822. Recent developmental and genetic work has shown that there are two species along the coast ...

We present two cases of cardiac sarcoidosis whose first presentation was in pregnancy. All findings confirmed the diagnosis of sarcoidosis with cardiac involvement in both patients. The first patient, a 37-year-old, presented with dizziness and atrial fibrillation at 16 weeks' gestation. Echocardiography revealed thickened interventricular septum with a speckled pattern. Cardiac MRI after deliv...

Methods Under X-ray guidance, a 3F catheter was placed selectively in LAD coronary artery of pigs (n=18). The animals received either 16mm or 32mm volumes of 40120μm Embosphere, microemboli (Biosphere Med, Rockland, MA) were selectively delivered in the LAD coronary artery to produce microinfarcts. The microemboli used were in the same size as those that pass through the pores of distal filtrat...

A novel Markov-random-field model for speckled synthetic aperture radar (SAR) imagery is derived according to the physical, spatial statistical properties of speckle noise in coherent imaging. A convex Gibbs energy function for speckled images is derived and utilized to perform speckle-compensating image estimation. The image estimation is formed by computing the conditional expectation of the ...

We propose and experimentally demonstrate a new reconstruction method of objects hidden in scattering medium. The object (chicken bone) hidden between two slabs of chicken breast is reconstructed from many speckled images formed by a microlens array (MLA). Each microlens from the array projects a small different speckled image of the hidden object onto a CCD camera. The entire noisy images from...

Lentigines are usually flat, pigmented macules on the skin and mucosa. These lesions are characterized by mostly smaller than 0.5 cm, irregular borders and different shades of brown and black. They can be in the form of circumscribed or widespread lesions, and occur either as isolated lesion or as a part of some congenital syndromes. The speckled lentiginous nevus is also named as Nevus Spilus ...

During the past decade, optical imaging through scattering medium has proved to be a powerful technique for many applications. It is especially effective in medical diagnostic, since it is safe, noninvasive and low-cost compared with the conventional radiation techniques. Based on a similar principle of the fly's visual system, we show a novel method of optical imaging through scattering medium...