Deutsche Flüssigkristallgesellschaft (dfkg) Deutsche Flüssigkristallgesellschaft (dfkg) Deutsche Flüssigkristallgesellschaft (dfkg) Deutsche Flüssigkristallgesellschaft (dfkg) Liquid Crystals in Photonic Components

Implementing Federalism in the Health System of Nepal: Opportunities and Challenges

Nepal moved from unitary system with a three-level federal system of government. As federalism accelerates, the national health system can also speed up its own decentralization process, reduce disparities in access, and improve health outcomes. The turn towards federalism creates several potential opportunities for the national healthcare system. This is because decision making has been devolv...

Compact size highly directive antennas based on the SRR metamaterial medium

In this work, we studied the far-field properties of the microwave radiation from sources embedded inside the split-ring resonator (SRR) metamaterial medium. Our results showed that the emitted power near the resonance frequency of the SRR structure was confined to a narrow angular region in the far field. The measured radiation patterns showed half-power beamwidths around 14◦. The highly direc...

Melting of the vortex-solid in irradiated Bi2Sr2CaCu2O8+δ single crystals in tilted magnetic fields

We study the boundary between the vortex-solid and the vortex-liquid phases in the Hc–Hab plane, for irradiated Bi2Sr2CaCu2O8+δ single crystals, by measuring the ac-local magnetic permeability in tilted magnetic fields. For high temperatures and at the phase boundary, we find that the c-axis magnetic field component H trans c decreases linearly when increasing the in-plane magnetic field Hab, s...

Epidemiology and control of onchocerciasis in West Africa.

Dispersion properties of photonic crystal waveguides with a low in-plane index contrast

We investigate dispersion properties of photonic crystal waveguides in a low-index material system. The modes above the light line, of a waveguide consisting of one row of missing holes (W1), exhibit high losses due to out-ofplane radiation. In contrast, the index-guided modes below the light line show moderate losses and we demonstrate both theoretically and experimentally that high dispersion...