The Ophthalmology Management Of Primary School Children Among Chinese Ethnic Group In Penang, Malaysia

Selama ini, kesilapan pembiasan mata ialah satu isu sosial di semua negara terutama dalam masyarakat Cina. All the while, refractive error is a social issue in all countries especially in Chinese community

Fabrication of robust (bio)interfaces based on reactive polymer films : surface confinement, reactivity and pattern fabrication on multiple length scales

The aim of the work described in this Thesis was to investigate interfacial reactions in confinement on ultrathin homopolymer and diblock copolymer films, the immobilization of (bio)molecules and the fabrication of biomolecular patterns by reactive microcontact printing (µCP) on these reactive polymer films. Taking advantage of the microphase separation of diblock copolymer films, the fabrication of nanopatterns was investigated, which could contribute to the future development of a model system that enables one to area-selectively deposit (write) and address (read out) (bio)molecules

Repeat-Until-Success Quantum Computing

We demonstrate the possibility to perform distributed quantum computing using only single photon sources (atom-cavity-like systems), linear optics and photon detectors. The qubits are encoded in stable ground states of the sources. To implement a universal two-qubit gate, two photons should be generated simultaneously and pass through a linear optics network, where a measurement is performed on them. Gate operations can be repeated until a success is heralded without destroying the qubits at any stage of the operation. In contrast to other schemes, this does not require explicit qubit-qubit interactions, a priori entangled ancillas nor the feeding of photons into photon sources.Comment: 5 pages, 2 figures, v3: substantially revised, v4: typos correcte

Electronic, Transport and Magnetic Properties of Cr-based Chalcogenide Spinels

The Cr-based chalcogenide spinels with general formula ACr2X4 (A = Cd, Zn, Hg, Fe; X = S, Se) host rich physical properties due to coexistence of frustration as well as strong coupling among spin, charge, orbital and lattice degrees of freedom. In this chapter, recent advances on the study of electronic transport and magnetic properties of ACr2X4 are reviewed. After a short introduction of the crystal structure and magnetic interactions, we focus on the colossal magnetoresistance (CMR) in FeCr2S4, colossal magnetocapacitance (CMC) in CdCr2S4, negative thermal expansion (NTE) in ZnCr2Se4 and complex orbital states in FeCr2S4. It is hoped that this chapter will be beneficial for the readers to explore the interplay among different degrees of freedom in the frustrated system