withdrawn 2017 hrs ehra ecas aphrs solaece expert consensus statement on catheter and surgical ablation of atrial fibrillation

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A Modularized Electronic Payment System for Agent-based E-commerce

With the explosive growth of the Internet, electronic-commerce (e-commerce) is an increasingly important segment of commercial activities on the web. The Secure Agent Fabrication, Evolution and Roaming (SAFER) architecture was proposed to further facilitate e-commerce using agent technology. In this paper, the electronic payment aspect of SAFER will be explored. The Secure Electronic Transaction (SET) protocol and E-cash were selected as the bases for the electronic payment system implementation. The various modules of the payment system and how they interface with each other are shown. An extensible implementation using JavaTM will also be elaborated. This application incorporates agent roaming functionality and the ability to conduct e-commerce transactions and carry out intelligent e-payment procedures. ACS Classification: H.4 (Information Systems Applications), H.4.3 (Communication

[Pt-2(PPh3)(4)(mu-S)(2)] as a metalloligand toward main-group Lewis acids. Crystal structures and bonding analysis of two low-coordinate BiCl3 adducts [Pt-2(PPh3)(4)(mu(3)-S)(2)BiCl3] and [Pt-2(PPh3)(4)(mu(3)-S)(2)BiCl2]PF6

Addition of BiCl3 to [Pt2(PPh3)4(μ-S)2] gives [Pt2(PPh3)4(μ3-S) 2BiCl3], which undergoes dissociation and metathesis with NH4PF6 to give [Pt2(PPh3)4(μ3-S) 2BiCl2]PF6. An X-ray single-crystal diffraction analysis established two highly distorted square-pyramidal and tetrahedral structures, respectively. The four- and five-coordination numbers are unusually low among the known BiIII halide adducts. Fenske-Hall MO analysis offers an explanation to the structural characteristics with reference to the stereochemically active lone pairs, coordination numbers, uneven Bi - Cl and Bi - S lengths and the butterfly geometry of the {Pt2S2} core. These parameters are compared with those of the other intermetallics previously reported. @ 1997 Elsevier Science Ltd.Link_to_subscribed_fulltex