Fourier Ptychography with Scheimpflug Optics for Multi-Aperture Applications

We present a new optical configuration using the Scheimpflug principle for Fourier ptychography microscopy. This configuration minimizes the aberrations present in the off-axis lenses of a multi-aperture Fourier ptychography setup. A 3D printed setup was used to demonstrate the experimental implementation

Fungal Air Spora Survey over Cow Shed in Bangalore, India

A fungal air spora survey of indoor and outdoor air samples of cow shed at Hessaraghatta village of Bangalore city, India was carried out by Andersen two stage sampler using an malt extract agar media were collected fortnightly from January 2011 to December 2011. Indoor air harbored maximum fungal spores (7808.36 CFU/m3) in comparison to outdoor air (7610.68 CFU/m3). Altogether, total 29 species belonging to 13 genera with unidentified fungi were isolated from indoor environment of the cow shed, when compared to 26 species belonging to 12 genera with unidentified fungi were isolated from outdoor environment of the cow shed. Summer season was found to harbored maximum fungal spores in comparison to winter and rainy. The present study helped in preparation of fungal calendars for the region, which may useful for clinicians to identify the cause of fungal spore related problem affecting human life

A Tight Connection Between Direct and Indirect Detection of Dark Matter through Higgs Portal Couplings to a Hidden Sector

We present a hidden Abelian extension of the Standard Model including a complex scalar as a dark matter candidate and a light scalar acting as a long range force carrier between dark matter particles. The Sommerfeld enhanced annihilation cross-section of the dark matter explains the observed cosmic ray excesses. The light scalar field also gives rise to potentially large cross-sections of dark matter on nucleon, therefore providing an interesting way to probe this model simultaneously at direct and indirect dark matter search experiments. We constrain the parameter-space of the model by taking into account CDMS-II exclusion limit as well as PAMELA and FermiLAT data.Comment: 15 pages, 7 figures. Added discussions on tuning and inverse Compton scattering constraints. References added and updated. Matches the published versio