نتایج جستجو برای: guilan plains

تعداد نتایج: 8876  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Joshuah S Perkin Keith B Gido Jeffrey A Falke Kurt D Fausch Harry Crockett Eric R Johnson John Sanderson

Groundwater pumping for agriculture is a major driver causing declines of global freshwater ecosystems, yet the ecological consequences for stream fish assemblages are rarely quantified. We combined retrospective (1950-2010) and prospective (2011-2060) modeling approaches within a multiscale framework to predict change in Great Plains stream fish assemblages associated with groundwater pumping ...

1998
A. T. BASILEVSKY J. W. HEAD

The details of stratigraphic units and structures making up six coronae and their regional surroundings on Venus were examined using full resolution Magellan images and stereoscopic coverage. Altimetry and stereoscopic coverage were essential in establishing the local stratigraphic relationships and the timing of corona-related topography. The degree of preservation of signatures of earlier cor...

Journal: :Public health reports 2011
Shinobu Watanabe-Galloway Nicole Flom Liyan Xu Tinka Duran Leah Frerichs Favian Kennedy Corey B Smith Adeola O Jaiyeola

OBJECTIVES We examined behavioral trends associated with cancer risk and cancer screening use from 1997 through 2006 among American Indians/Alaska Natives (AI/ANs) in the Northern Plains region (North Dakota, South Dakota, Nebraska, and Iowa) of the United States. We also examined disparities between that population and non-Hispanic white (NHW) people in the Northern Plains and AI/ANs in other ...

1999
David J. Meltzer

H w p The climate of the Great Plains during the middle Holocene aried considerably, but overall it was marked by a north–south radient of increasingly warmer and drier conditions, with a reuction in effective moisture, surface water, and resource abunance, and an increase in resource patchiness, sediment weatherng, erosion, and aeolian activity. Pronounced drought conditions ere most evident o...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
M B Lovvorn G C Frison L L Tieszen

Two Amerindian demographic shifts are attributed to climate change in the northwest plains of North America: at approximately 11,000 calendar years before present (yr BP), Amerindian culture apparently split into foothills-mountains vs. plains biomes; and from 8,000-5,000 yr BP, scarce archaeological sites on the open plains suggest emigration during xeric "Altithermal" conditions. We reconstru...

Journal: :New Zealand Journal of Experimental Agriculture 1979

2008
Lindsay Trapnell Bill Malcolm

Clearing of trees and native vegetation over the past 160 years has led to increasing rates of dryland salinization in the Goulburn-Broken Catchment area. In its dryland section, within the Goulburn Highlands, South West Goulburn, and the Broken Highlands subcatchments, hydrologic balance exists. But in the Riverine Plains comprising the Goulburn and Broken Plains sub-catchments, where average ...

2013
Paul K. Byrne Christian Klimczak David A. Williams Debra M. Hurwitz Sean C. Solomon James W. Head Frank Preusker Jürgen Oberst

[1] In contrast to other terrestrial planets, Mercury does not possess a great variety of volcanic features, its history of volcanism instead largely manifest by expansive smooth plains. However, a set of landforms at high northern latitudes on Mercury resembles surface flow features documented on Earth, the Moon, Mars, and Venus. The most striking of such landforms are broad channels that host...

Journal: :Obesity surgery 2011
Bradley T Ewing Mark A Thompson Mitchell S Wachtel Eldo E Frezza

The regional economic burdens of obesity have not been fully quantified. This study incorporated bariatric surgery demographics collected from a large university hospital with regional economic and employment data to evaluate the cost of obesity for the South Plains region of Texas. Data were collected from patients who underwent laparoscopic gastric bypass and laparoscopic banding between Sept...

2014
Stephen J. Lycett

Culture is a phenomenon shared by all humans. Attempts to understand how dynamic factors affect the origin and distribution of cultural elements are, therefore, of interest to all humanity. As case studies go, understanding the distribution of cultural elements in Native American communities during the historical period of the Great Plains would seem a most challenging one. Famously, there is a...

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