Learn More
We report on a search for particle dark matter with the XENON100 experiment, operated at the Laboratori Nazionali del Gran Sasso for 13 months during 2011 and 2012. XENON100 features an ultralow electromagnetic background of (5.3 ± 0.6) × 10(-3) events/(keV(ee) × kg × day) in the energy region of interest. A blind analysis of 224.6 live days × 34 kg(More)
The purpose of the present study was to investigate the effects of granulocyte colony-stimulating factor (G-CSF) on neurodegeneration of optic nerve (ON) and retinal ganglion cells (RGCs) in a rat model of ON crush. The ONs of adult male Wistar rats (150-180 g) were crushed by a standardized method. The control eyes received a sham operation. G-CSF (100(More)
Electron recombination in liquid argon (LAr) is studied by means of charged particle tracks collected in various ICARUS liquid argon TPC prototypes. The dependence of the recombination on the particle stopping power has been fitted with a Birks functional dependence. The simulation of the process of electron recombination in Monte Carlo calculations is(More)
To study the mechanisms of dorsal axis specification, the alteration in dorsal cell fate of cleavage stage blastomeres in axis-respecified Xenopus laevis embryos was investigated. Fertilized eggs were rotated 90 degrees with the sperm entry point up or down with respect to the gravitational field. At the 8-cell stage, blastomeres were injected with the(More)
The ionization signals in the liquid argon of the ATLAS electromagnetic calorimeter are studied in detail using cosmic muons. In particular, the drift time of the ioniza-tion electrons is measured and used to assess the intrinsic uniformity of the calorimeter gaps and estimate its impact on the constant term of the energy resolution. The drift times of(More)
A strong theoretical candidate for weakly interacting massive particles (WIMPs) is the neutralino. The neutralino is the lightest supersymmetric particle (LSP), from supersymmetry (SUSY) theory, that would be formed in the early universe and subsequently cluster in galaxies with normal matter. This could account for the ~90% non-luminous mass inferred in(More)
Axons of the central nervous system in adult mammals do not regenerate spontaneously after axotomy. To understand whether the optic nerve of adult mammals loses the intrinsic capability to regenerate after injury, we have studied the capability of neurite regeneration of retinal explant from adult rat after optic nerve axotomy in vitro. After experimental(More)
Neurite regeneration from central nervous tissue of mammalian has been demonstrated to occur in early postnatal stage but not in adult stage. To answer when the retinal explant of rat loses the neurite regeneration in vitro after birth, we have used tissue culture to study the neurite regeneration of retinal explant of Wistar rat at different ages. The(More)
Gaze-evoked amaurosis is an uncommon but pathognomonic symptom of intrinsic orbital mass lesion. The symptom is easily neglected even by ophthalmologists. A 49-year-old woman had a two-year history of dimming vision in her right eye when she looked upward for a few seconds. On examination, her visual acuity was normal and without apparent proptosis. The(More)