Conventional von-Neumann computing models have achieved remarkable feats for the past few decades. However, they fail to deliver the required efficiency for certain basic tasks like image and speech recognition when compared to biological systems. As such, taking cues from biological systems, novel computing paradigms are being explored for efficient hardware implementations of recognition/clas...

Abstra t. This paper analyzes the ombined e e t of slip velo ity and transverse roughness on the performan e of a Jenkins model based ferro uid lubriation of a squeeze lm in urved rough annular plates. The slip model of Beavers and Joseph has been invoked to evaluate the e e t of slip velo ity. In order to nd the e e t of surfa e roughness the sto hasti averaging model of Christensen and Tonder...

Outstanding electrical properties of solids are often due to the composition heterogeneity and/or the competition between two or more sublattices. This is true for superionic and superprotonic conductors and supraconductors, as well as for many ferroelectric materials. As in PLZT ferroelectric materials, the exceptional ferro- and piezoelectric properties of the PMN-PT ((1-x)PbMg1/3Nb2/3O₃-xPbT...

Serum transferrin is a key player in iron homeostasis, and its ability to deliver iron to cells via the endosomal pathway critically depends on the presence of carbonate that binds this protein synergistically with ferric ion. Oxalate is another ubiquitous anionic species that can act as a synergistic anion, and in fact its interaction with transferrin is notably stronger compared to carbonate,...

Um eletrodo de carbono vítreo modificado por nanotubos de carbono de paredes múltiplas (NTCPM) e pelo complexo tiocianato de bis(piterpi) ferro(II) (piterpi = 4’-(4-piridil)-2,2’:6’,2”terpiridina) foi investigado através de métodos voltamétricos em solução de tampão acetato (pH 5). A performance do eletrodo modificado pelo complexo de ferro(II)/NTCPM foi avaliada por voltametria de pulso difere...

Um sistema de análises por injeção em fluxo é proposto para a determinação espectrofotométrica de fósforo em ferro eletrolítico e ferro ligas. O método se baseia na reação com molibdato de amônio após redução com cloreto estanoso em meio ácido. Uma coluna com resina catiônica AG50W-X8A foi acoplada ao sistema para minimizar a interferência causada por Fe(III) e Cr(III). O sistema proposto apres...

Murine erythroleukaemia cells (MELC) are erythroid precursor cells that undergo erythroid differentiation in the presence of the inducer hexamethylene bisacetamide (HMBA). The effects of lead on haem biosynthesis in MELC following HMBA-induced differentiation were studied. MELC were induced with HMBA in the presence of 20, 40 and 80 mum-lead acetate and cell density, haem content, incorporation...