ABSTRACT
The Hayabusa2 spacecraft investigated the C-type (carbonaceous) asteroid (162173) Ryugu. The mission performed two landing operations to collect samples of surface and subsurface material, the latter exposed by an artificial impact. We present images of the second touchdown site, finding that ejecta from the impact crater was present at the sample location. Surface pebbles at both landing sites show morphological variations ranging from rugged to smooth, similar to Ryugu's boulders, and shapes from quasi-spherical to flattened. The samples were returned to Earth on 6 December 2020. We describe the morphology of >5 grams of returned pebbles and sand. Their diverse color, shape, and structure are consistent with the observed materials of Ryugu; we conclude that they are a representative sample of the asteroid.
ABSTRACT
A 38-year-old hemophiliac, who had been infected with HIV by the administration of blood products and had been diagnosed as AIDS by the onset of Pneumocystis carinii pneumonia, was admitted to our hospital with the complaints of headache and vomiting. After he was diagnosed as cryptococcal meningitis using the microscopy, cryptococcal antigen detection and culture of cerebrospinal fluid, treatment with amphotericin-B and fluconazole was started. As there was no clinical improvement, spinal drainage was performed and acetazolamide administered in order to reduce the intracranial pressure. Treatment was changed from AMPH-B and FLCZ to a combined therapy of AMPH-B and itraconazole. As his clinical features showed improvement, he was discharged home on a maintenance dose of ITCZ and acetazolamide after having been hospitalized for three months. This case-report may be of use in the management of cryptococcal meningitis in patients with AIDS.
