Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Kentucky (10709)
- University of Nebraska - Lincoln (3050)
- Department of Primary Industries and Regional Development, Western Australia (2380)
- Old Dominion University (1273)
- Utah State University (1248)
-
- Nova Southeastern University (1122)
- University of Northern Iowa (1041)
- Denison University (756)
- Wright State University (711)
- University of Arkansas, Fayetteville (622)
- University of Nevada, Las Vegas (594)
- The Texas Medical Center Library (563)
- Virginia Commonwealth University (504)
- University of Colorado Law School (501)
- Loyola Marymount University and Loyola Law School (472)
- University of Texas Rio Grande Valley (469)
- Portland State University (410)
- Western Kentucky University (385)
- Universitas Indonesia (382)
- University of South Carolina (337)
- National Taiwan Ocean University (325)
- South Dakota State University (318)
- SIT Graduate Institute/SIT Study Abroad (310)
- Brigham Young University (307)
- City University of New York (CUNY) (269)
- Illinois State University (265)
- Santa Clara University (257)
- Karbala International Journal of Modern Science (248)
- University of South Florida (223)
- Chapman University (202)
- Keyword
-
- Western Australia (1607)
- Grains and field crops (682)
- Climate change (526)
- Grazing (442)
- Humans (347)
-
- Biodiversity (314)
- Conservation (301)
- Sustainability (295)
- Water quality (290)
- Nitrogen (289)
- Ecology (280)
- Salinity (252)
- Agriculture (237)
- Groundwater (235)
- United States (228)
- Alfalfa (215)
- Sheep (208)
- Climate (205)
- California (203)
- Management (198)
- Cattle (195)
- Grassland (195)
- Soil (188)
- Biosecurity, pests, weeds and diseases (183)
- Phosphorus (182)
- Natural resources (180)
- Forage (176)
- Pasture (175)
- Environment (167)
- Coral reefs (165)
- Publication Year
- Publication
-
- IGC Proceedings (1977-2023) (9261)
- The Synapse: Intercollegiate science magazine (756)
- Experimental Summaries - Plant Research (725)
- Journal of the Iowa Academy of Science: JIAS (701)
- United States Department of Agriculture Wildlife Services: Staff Publications (616)
-
- Kno.e.sis Publications (540)
- Faculty, Staff and Student Publications (536)
- The Prairie Naturalist (483)
- Biology and Medicine Through Mathematics Conference (439)
- Theses and Dissertations (432)
- Kentucky Alfalfa and Stored Forage Conference (382)
- Marine & Environmental Sciences Faculty Articles (359)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (346)
- Electronic Theses and Dissertations (334)
- Journal of Marine Science and Technology–Taiwan (325)
- Memorandum (316)
- Kesmas (315)
- Journal of the Department of Agriculture, Western Australia, Series 4 (307)
- Faculty Publications (298)
- OES Faculty Publications (291)
- Independent Study Project (ISP) Collection (290)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (266)
- Resource management technical reports (250)
- Graduate Theses and Dissertations (249)
- Karbala International Journal of Modern Science (248)
- HCNSO Student Theses and Dissertations (247)
- United States Agricultural Commodities in Drought Archive (219)
- Biological Sciences Faculty Publications (216)
- Annual Symposium on Biomathematics and Ecology Education and Research (211)
- Chemistry and Biochemistry Faculty Publications (204)
- Publication Type
Articles 38821 - 38850 of 38959
Full-Text Articles in Physical Sciences and Mathematics
Asterolecanium Variolosum Ratzeburg, A Gall-Forming Coccid, And Its Effect Upon The Host Trees, Thaddeus Parr
Asterolecanium Variolosum Ratzeburg, A Gall-Forming Coccid, And Its Effect Upon The Host Trees, Thaddeus Parr
Yale School of the Environment Bulletin Series
No abstract provided.
Disturbance Of Forest Soil Resulting From The Uprooting Of Trees, Harold J. Lutz
Disturbance Of Forest Soil Resulting From The Uprooting Of Trees, Harold J. Lutz
Yale School of the Environment Bulletin Series
No abstract provided.
A Study Of The Kjeldahl Method And A Modification For The Determination Of Nitrogen In Alcoholic Distillates., Margie M. Miller
A Study Of The Kjeldahl Method And A Modification For The Determination Of Nitrogen In Alcoholic Distillates., Margie M. Miller
Electronic Theses and Dissertations
No abstract provided.
Fifty-Third Annual Meeting Of The Iowa Academy Of Science And The Eighth Annual Convention Of The Junior Academy Of Science Of Iowa, April 21 And 22, 1939, Iowa Academy Of Science
Fifty-Third Annual Meeting Of The Iowa Academy Of Science And The Eighth Annual Convention Of The Junior Academy Of Science Of Iowa, April 21 And 22, 1939, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
The White River Oligocene Rodent Diplolophus, Erwin Hinckley Barbour, Thompson M. Stout
The White River Oligocene Rodent Diplolophus, Erwin Hinckley Barbour, Thompson M. Stout
Bulletin of the University of Nebraska State Museum (1924–2023)
The rich and varied nature of the mammalian faunas of the White River Oligocene has been recognized for many years, but the exact geologic succession is only now becoming known. In these faunal assemblages the rodents and lagomorphs appear to have been important elements, perhaps numerically as abundant in the Oligocene as are these same groups at present.
A New Giant Camel Gigantocamelus Fricki, Gen. Et Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
A New Giant Camel Gigantocamelus Fricki, Gen. Et Sp. Nov., Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
A lower Pleistocene deposit containing fossil vertebrates near Broadwater, Morrill county, Nebraska, has been reported upon by the writers, beginning three years ago. Five fossil quarries have been opened since the site was discovered in 1936.
A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood
A Proposed Method For Classifying And Evaluating Soils On The Basis Of Productivity And Use Suitabilities, Arthur Anderson, A. P. Nelson, F. A. Hayes, I. D. Wood
Nebraska Agricultural Experiment Station: Historical Research Bulletins
It is the object of this paper to present a method for classifying and evaluating the soils as mapped in regular soil surveys on the basis of land types, which are here defined as areas having reasonably similar productivity and use suitabilities. The standards used to differentiate land types will vary according to the desired objectives, but any material difference in yield, or in practices necessary to maintain a desirable level of productivity will justify recognition of land types. The proposed procedure involves a more detailed study of the influence which soils, slope, erosion, and drainage have on specific crops …
Fifty-Second Annual Meeting Of The Iowa Academy Of Science And The Seventh Annual Convention Of The Junior Academy Of Science Of Iowa, April 15 And 16, 1938, Iowa Academy Of Science
Fifty-Second Annual Meeting Of The Iowa Academy Of Science And The Seventh Annual Convention Of The Junior Academy Of Science Of Iowa, April 15 And 16, 1938, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
List Of Twenty-Two Species Of Monogenetic Trematodes From The South Pacific, F. G. Meserve
List Of Twenty-Two Species Of Monogenetic Trematodes From The South Pacific, F. G. Meserve
Journal of the Minnesota Academy of Science
No abstract provided.
A Preliminary Report On A Study Of College Science Courses Considered Valuable By High School Science Teachers, G. M. Wissink
A Preliminary Report On A Study Of College Science Courses Considered Valuable By High School Science Teachers, G. M. Wissink
Journal of the Minnesota Academy of Science
No abstract provided.
The Search For Natural History Areas In Minnesota, A. N. Wilcox, W. J. Breckenridge, R. L. Donovan, T. B. Magath, H. E. Stork, Gustav Swanson
The Search For Natural History Areas In Minnesota, A. N. Wilcox, W. J. Breckenridge, R. L. Donovan, T. B. Magath, H. E. Stork, Gustav Swanson
Journal of the Minnesota Academy of Science
No abstract provided.
Report Of Progress Of The Nebraska State Museum, Erwin H. Barbour
Report Of Progress Of The Nebraska State Museum, Erwin H. Barbour
Bulletin of the University of Nebraska State Museum (1924–2023)
The history and development of the Nebraska State Museum since 1891 have been summarized in a preliminary manner up to 1925 in the first number of Volume I of the Bulletin of the Nebraska State Museum.1 Since 1927, the collections of the Nebraska State Museum, The University of Nebraska, have been housed in a new building, Morrill Hall, on the city campus of The University of Nebraska. It now seems fitting to report upon the exceptional progress of the past few years, and to acknowledge the fine cooperation of those who have helped to make it possible.
Fifty-First Annual Meeting Of The Iowa Academy Of Science And The Sixth Annual Convention Of The Junior Academy Of Science Of Iowa, April 16 And 17, 1937, Iowa Academy Of Science
Fifty-First Annual Meeting Of The Iowa Academy Of Science And The Sixth Annual Convention Of The Junior Academy Of Science Of Iowa, April 16 And 17, 1937, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
The Effect Of Cultivation On Certain Chemical And Physical Properties Of Some South Dakota Soils, Oscar E. Olson
The Effect Of Cultivation On Certain Chemical And Physical Properties Of Some South Dakota Soils, Oscar E. Olson
Electronic Theses and Dissertations
Soil Nutrient losses have followed closely in the paths of advancing frontiers in agriculture. Remedies for depletion as the result of overcropping were sought by George Washington, whose interest and investigation of soil nutrient losses probably represent the earliest attention given to land exploitation in the United States, which at the present time has become a problem of national concern. Soil losses have been attributed to a number of causes , among which are cropping, erosion, leaching, burning, and rapid oxidation of organic matter in the soil. Associated with soil nutrient losses, certain significant physical and chemical changes may occur …
The Influence Of Soil Profile Horizons On Root Distribution Of White Pine (Pinus Strobus), Harold J. Lutz, Joseph B. Ely Jr., Silas Little Jr.
The Influence Of Soil Profile Horizons On Root Distribution Of White Pine (Pinus Strobus), Harold J. Lutz, Joseph B. Ely Jr., Silas Little Jr.
Yale School of the Environment Bulletin Series
No abstract provided.
Spruce In The Western Miocene, George F. Beck
Spruce In The Western Miocene, George F. Beck
All Faculty Scholarship for the College of the Sciences
One of the real surprises in store for us as we began to section specimens of petrified wood from the Vantage and certain other horizons in Central Washington, was the prevalence of a spruce type hardly hinted at in the leaf lists as published for the various sediments of Yakima time (upper miocene?).
The Reptiles Of Cherokee County, Kansas, Myron Alec Hurd
The Reptiles Of Cherokee County, Kansas, Myron Alec Hurd
Electronic Theses & Dissertations
Cherokee County has an area of 585 square miles. The greater part is covered with hydrophytes and mesophytes, but there are some Xerophytic areas. A large part of its area is covered with typical prairie grassland. Thickets of plum, sumac, persimmon, hawthorne, blackberry, and buck brush occur in pastures and wastelands. Along the streams may be found the elm-ask-oak assocations and other plants. Along the embankments may be found blackberry, sumac, and wild rose. Surrounding the ponds and marsh areas are rushes, reeds, button willows, and willows.
The mean annual temperature is 56 degrees fahrenheit. The three summer months average …
Front Matter
Journal of the Minnesota Academy of Science
The 4th Annual Meeting of The Minnesota Academy of Science.
Fiftieth Annual Meeting Of The Iowa Academy Of Science And The Fifth Annual Convention Of The Junior Academy Of Science Of Iowa, April 3 And 4, 1936, Iowa Academy Of Science
Fiftieth Annual Meeting Of The Iowa Academy Of Science And The Fifth Annual Convention Of The Junior Academy Of Science Of Iowa, April 3 And 4, 1936, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Palaeontologic And Geologic Consideration Of Early Man In Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz
Palaeontologic And Geologic Consideration Of Early Man In Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
There has been much discussion recently relative to the geologic age of Yuma and Folsom artifacts. The writers submit the following palaeontological and geological data which may aid in a better interpretation of the subject. This paper deals with three localities in Nebraska where Yuma and Folsom implements have been found with extinct mammals; namely, the Scottsbluff Bison Quarry, the Sand Hill blow-out sites, and the Sioux County artifact sites.
Front Matter
Journal of the Minnesota Academy of Science
Proceedings of The Minnesota Academy of Science. Volume 4. 1936.