Co-Cr and Co-Cr/nano-TiO2 coatings were electrodeposited from Cr(III) based baths. The effect of TiO2 nano-particles incorporation on the morphology, structure, crystallite size, and preferred orientation was studied. Corrosion behavior of the composite coating was also investigated by means of polarization and electrochemical impedance spectroscopy techniques in Hanks’ si...

OBJECTIVES To determine whether allogenic muscle-derived cells (MDCs) could restore sphincter function in rats with intrinsic sphincter deficiency (ISD). ISD denotes a malfunction of the urethral sphincter. METHODS ISD was produced in 25 adult female Sprague-Dawley rats by cauterizing tissues lateral to the mid-urethra. One week after cauterization, 1.5 x 10(6) MDCs, genetically engineered fo...

Guinea pigs immunized with intact or disrupted armadillo-grown human Mycobacterium leprae administered in aqueous or oil vehicles were tested with various dilutions of M. leprae suspended in saline, water-soluble M. leprae extract, purified protein derivative, and a water-soluble extract of normal armadillo tissue. The results demonstrated the following. (i) Under no conditions was any skin tes...

We have tested the mechanical properties of isolated canine pericardium at 37°C in Hanks' solution, and compared those results with similar tests on tissue at room temperature, both in Hanks' solution and merely kept moist with saline. Pericardium, which is nearly isotropic due to the layers of collagen aligned in different directions, is a composite material made up of collagen and elastin fib...

Since the first successful aggregation of mouse embryos was reported by TARKowsKi,ii) many studies on chimera production have been carried out.S'6'7) Chimeras produced by the aggregation of early embryos have been widely used in experimental investigations of mammalian embryolegy and developmental genetics.4'9) Chimeric experimental animals have also been used to study some problems of human ge...

We propose a solution to problems involving temporal projection and explanation (e.g., the Yale shooting problem) based on the idea that whether a situation is abnormal should not depend upon historical information about how the situation arose. We apply these ideas both to the Yale shooting scenario and to a blocks world domain that needs to address the qualification problem. 1 Introduction Th...

In order to control of the calcium phosphate precipitation of Ti in body fluid, which might result in assimilated bone re-facture during removal operation of implanted devices such as femoral nails and bone screws after healing, vacuum vapor deposition of Zr on Ti Substrate was carried out. The calcium phosphate precipitation was evaluated through the immersion test into the Hanks’ solution. Sc...

A new technique employing continuous recirculating perfusion of the rat liver in situ, shaking of the liver in buffer in vitro, and filtration of the tissue through nylon mesh, results in the conversion of about 50% of the liver into intact, isolated parenchymal cells. The perfusion media consist of: (a) calcium-free Hanks' solution containing 0.05% collagenase and 0.10% hyaluronidase, and (b) ...

In this paper, the relation between hlock digital filtering and quadrature mirror filter (QMF) hanks is explored. Necessary and sufficient conditions for alias cancellation in QMF hanks are expressed in terms of an associated matrix, derived from the polyphase components of the analysis and synthesis filters. These conditions, called the pseudocirculant conditions, enahle us to directly unite Q...