نتایج جستجو برای: narrow valleys and high mountains
تعداد نتایج: 17085710 فیلتر نتایج به سال:
.b rom time to time the existence of typhus has been recorded in Kashmir. In the winter of 1942-43, an epidemic of typhus occurred in Kashmir, and this paper is based on a study of this epidemic. Kashmir is a large valley at about 5,500 feet surrounded by high mountains 12,000 feet high. In the main valley runs the Jhelum river and the tributaries of this river descend from smaller valleys lyin...
abstract a mountain glacier, when it occupies a river valley, immediately begins to change the cross-section and profile of that valley. river valleys in mountain areas tends to have v-shaped profiles. glaciers work to widen as well as deepen their valleys and the typical cross-section of a glacial valley is u-shaped. the u-shaped glacial valley is one of the most characteristic of glacial land...
Climatic changes associated with Pleistocene glacial cycles profoundly affected species distributions, patterns of interpopulation gene flow, and demography. In species restricted to montane habitats, ranges may expand and contract along an elevational gradients in response to environmental fluctuations and create high levels of genetic variation among populations on different mountains. The sa...
khoroslodaghlocated in northwestern of iran and south of moghan plain in ardabil province. these mountainsare from azarbyjan mountains unit and are separated from caucasus and talesh mountains in azarbyjan republic. study area was folded by upper pliocene and quaternary orogeny. pliocene orogeny was severe but quaternary folded was calm. afterward orogeny movements and folding, invertedrelief (...
We generalize the degree-organizational view of real-world networks with broad degree distributions in a landscape analog with mountains (high-degree nodes) and valleys (low-degree nodes). For example, correlated degrees between adjacent nodes correspond to smooth landscapes (social networks), hierarchical networks to one-mountain landscapes (the Internet), and degree-disassortative networks wi...
Most research into the diet of stoats in New Zealand has been in low altitude valleys such as the Eglinton and Hollyford Valleys. Yet much of New Zealand’s national parks (e.g. Fiordland National Park) consist of many small montane valleys and alpine areas. This research identified the key prey species of stoats inhabiting such small montane valleys and alpine grasslands. Stoats were collected ...
Sky islands provide ideal opportunities for understanding how climatic changes associated with Pleistocene glacial cycles influenced species distributions, genetic diversification, and demography. The salamander Plethodon ouachitae is largely restricted to high-elevation, mesic forest on six major mountains in the Ouachita Mountains. Because these mountains are separated by more xeric, low-elev...
Several properties within the eastern Eyre Mountains are currently undergoing tenure revue. This report provides geological information relevant to these reviews, particularly on the sequence of glacial deposits south from Kingston. The geology of the Eyre Mountains is dominated by low-grade metasedimentary rocks of the Permian Caples terrane, becoming increasingly schistose toward the northeas...
Analysis of hair is known to provide useful information about environmental and toxic exposures. Very little historical use has been made this type investigation. Here we study 138 human samples from 19th century in France. In order examine the potential association between contamination health impacts, characterized by 33 elements a set strands sampled during last quarter Savoy region After se...
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