منابع مشابه
A Unique old-growth ponderosa pine forest in northern Arizona
Old-growth ponderosa pine (Pinusponderosa) forests are uncommon in the Southwest, and only one old growth forest (the Gus Pearson Natural Area [GPNA]) has been researched in the ponderosa pine belt sur rounding the city of Flagstaff in northern Arizona. The purpose of this study was to measure soil characteris tics, current and pre-Euro-American settlement (1885) tree structure, and understory ...
متن کاملEffects of asian sand dust, Arizona sand dust, amorphous silica and aluminum oxide on allergic inflammation in the murine lung.
The aggravating effects of Asian sand dust (SD) and related minerals on the allergic inflammation were examined in the murine lungs. The toxic materials adsorbed onto Asian SD, Arizona SD were inactivated by heat-treatment. ICR mice were administered mineral samples (0.1 mg/mouse) and/or ovalbumin (OVA) (1 microg/mouse) - normal saline (control), Asian SD, Arizona SD, SiO2, Al2O3, OVA, OVA + As...
متن کاملFaunistic Study of Sand Flies in Northern Cyprus
A faunistic study of Phlebotominae (Diptera: Psychodidae) sand flies was carried out in northern Cyprus. A total of 12,517 sand flies (3,285 males and 9,232 females) was collected from 20 different localities in July and September 2004. Nine species belonging to genus Phlebotomus and 3 species of genus Sergentomyia were identified. Of these, the presence of the species Phlebotomus neglectus Ton...
متن کاملChagas disease in prehistory.
The classical hypothesis proposes that Chagas disease has been originated in the Andean region among prehistoric people when they started domesticating animals, changing to sedentary habits, and adopting agriculture. These changes in their way of life happened nearly 6,000 years ago. However, paleoparasitological data based on molecular tools showed that Trypanosoma cruzi infection and Chagas d...
متن کاملTHE FLORA OF THREATENED BLACK ALDER FORESTS IN THE CASPIAN LOWLANDS, NORTHERN IRAN
The Caspian (Hyrcanian) lowland forest zone in northern Iran is characterized by small remnant alder forest communities, dominated or subdominated with an Euxino-Hyrcanian element, Alnus glutinosa ssp. barbata. The first floristic inventory of these alder forests in northern Iran is presented. The floristic catalogue is based on the data of 133 phytosociological releves in eight different alder...
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ژورنال
عنوان ژورنال: Hispanic American Historical Review
سال: 1961
ISSN: 0018-2168,1527-1900
DOI: 10.1215/00182168-41.3.462