We provide a blueprint for microfabricating photonic crystals with very large and robust three-dimensional photonic band gaps (PBG's). These crystals are based on interleaving polygonal spiral posts and can be efficiently manufactured on a large scale in a one-step process using the recently introduced technique of glancing angle deposition. We classify various families of spiral photonic cryst...

Garlic (Allium sativum L., Alliaceae), Persian shallot (Allium ascalonicum L., Alliaceae ) and Sage (Salvia officinalis L., Lamiaceae) are believed to have hypoglycemic properties and have been used traditionally as antidiabetic herbal medicines in Iran. In this study, diabetes was induced by subcutaneous injection of alloxan monohydrate (100 mg kg−1) to male Wistar rats. Antidiabetic effects of...

It has been known since the rigorous result by Angelescu and Corciovei [A-C] that the answer to the question in the title is negative for the Perfect Bose Gas (PBG). The main result of the present paper is that the answer could become positive if the bosons are simultaneously embedded in a periodic external potential. We show that it is true for PBG, as well as for the Bose gas with a mean-fiel...

We demonstrate that a two-dimensional complete photonic band-gap (PBG) can be realized in a layered periodic structure with a double-layer unit cell containing an anisotropic left-handed metamaterial layer. A set of criteria is derived for the geometric and material parameters to realize a two-dimensional complete PBG in such systems, and a detailed phase diagram is given. We discuss the underl...

We show that the properties of the confined modes of a photonic band-gap ~PBG! waveguide can be calculated with good accuracy by replacing it with an effective corrugated waveguide that represents only the structure in the vicinity of the middle slab. Such a replacement is helpful in the design of the PBG waveguides as well as in the understanding and analysis of the coupling of different waveg...

Porphyria experts concur that acute attacks of AIP, VP and HCP, are invariably associated with increases in urinary PBG. Reports differ, however, as to the amount of increase indicative of an acute attack. Some authors consider excretion of at least 25-fold the upper level of normal, as indicative, whereas others regard a 10-fold or even a 2-fold increase, as sufficient indication. An additiona...

Objective: This study’s purpose was to verify the PAKU-PAKU KOUBO-KUN (PPKK) containing yeast and mulberry extract concentrate’s effects on suppressing elevated postprandial blood glucose (PBG).Methods: Two randomized, placebo-controlled, crossover studies (TRIAL-1 TRIAL-2) were conducted. Both included healthy Japanese adults with a maximum PBG concentration (Cmax) in range of 140–199 mg/dL. S...

Semiconductor-microcavity polaritons are composite quasiparticles of excitons and photons, emerging in the strong coupling regime. As quantum superpositions of matter and light, polaritons have much stronger interparticle interactions compared with photons, enabling rapid equilibration and Bose-Einstein condensation (BEC). Current realizations based on 1D photonic structures, such as Fabry-Péro...

In this paper, two types of PBG structures, one is the periodic lattice of air holes on the substrate and the other is a periodic lattice of air holes through the substrate and the ground plane, have been incorporated on the FR4 substrate to improve the performance of a simple annular ring antenna operating in the TM31 mode. For Ku band FR4 has higher loss which is reduced by integrating the ai...