نتایج جستجو برای: caves
تعداد نتایج: 2604 فیلتر نتایج به سال:
Exploring caves is, without doubt, a very exciting adventure; however, it carries some dangers. Three of four travellers were admitted to hospital with lung changes after returning from Ecuador, successively. Epidemiological studies revealed that the travellers visited caves infested by bats, and had contact with bats' guano. They gave a history of fever, fatigue, myalgia, dry cough, and ch...
Yeasts from caves have rarely been examined. We examined yeasts collected from bat guano samples from 20 bat-inhabited limestone and volcanic caves located in 11 prefectures in Japan. Of approximately 700 yeast-like colonies, nine Trichosporon species were recovered from 15 caves. Two of these were known species, and the remaining seven are potentially novel species, based on molecular phylogen...
The upper Tennessee River Basin contains the highest density of our nation’s caves; yet, little is known regarding speleogenesis or Fe and Mn biomineralization in these predominantly epigenic systems. Mn:Fe ratios of Mn and Fe oxide-rich biofilms, coatings, and mineral crusts that were abundant in several different caves ranged from ca. 0.1 to 1.0 as measured using ICP-OES. At sites where the M...
Deeply hidden in the artistic treasury of Northwest China, the Mogao Caves is a green land in yellow sand and a shining pearl on the Silk Road. But, thousands of years’ damages from the nature factors and artificial destroy and over-load tours cause diseases for all the caves in different extents. Consequently, the speed of painted statues and fresco degenerate dramatically. In order to protect...
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