We show that the common proof technique of padding a circuit before IO obfuscation is sometimes necessary. That is, assuming indistinguishability obfuscation (IO) and one-way functions exist, we define samplers Sam0, which outputs (aux0, C0), and Sam1, which outputs (aux1, C1) such that: • The distributions (aux0, iO(C0)) and (aux1, iO(C1)) are perfectly distinguishable. • For padding s = poly(...

We construct a general-purpose indistinguishability obfuscation (IO) scheme for all polynomialsize circuits from constant-degree graded encoding schemes in the plain model, assuming the existence of a subexponentially secure Pseudo-Random Generator (PRG) computable by constantdegree arithmetic circuits (or equivalently in NC), and the subexponential hardness of the Learning With Errors (LWE) pr...

In this paper, we describe an implementation of MPI-IO on top of the Direct Access File System (DAFS) standard. The implementation is realized by porting ROMIO on top of DAFS. We identify one of the main mismatches between MPI-IO and DAFS is memory management. Three different design alternatives for memory management are proposed, implemented, and evaluated. We find that memory management in th...

In critically ill infants and children, intravascular (IV) access is sometimes very difficult. In such cases intraosseous (IO) infusion should be used as the method of choice. However, in practice, different problems are experienced with this procedure. To overcome the practical problems and to confirm the efficacy of IO infusion in reversing hypovolemic shock, an animal model was used by ...

In this paper, we investigate the Casacore Table Data System (CTDS) used in the casacore and CASA libraries, and methods to parallelize it. CTDS provides a storage manager plugin mechanism for third-party developers to design and implement their own CTDS storage managers. Having this in mind, we looked into various storage backend techniques that can possibly enable parallel I/O for CTDS by imp...

Inferior olivary (IO) neurons are electrotonically coupled by gap junctions. This coupling is thought to underlie synchronous complex spike (CS) activity generated by the olivocerebellar system in Purkinje cells, and also has been hypothesized to be necessary for IO neurons to generate spontaneous oscillatory activity. These characteristics of olivocerebellar activity have been proposed to be c...

This paper introduces an FPGA-based emulation platform for optical-enabled computer system researches. As electrical links are reaching their physical limits, optical technologies begin increasingly to play a role in computer systems by enabling high speed IO, optical memory extension and system bus links. With its excellent latency, bandwidth, power and scalability performance, optical links w...