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 38791 - 38820 of 38959
Full-Text Articles in Physical Sciences and Mathematics
Establishment, Development, And Management Of Conifer Plantations In The Eli Whitney Forest, New Haven, Connecticut, Ralph C. Hawley, Harold J. Lutz
Establishment, Development, And Management Of Conifer Plantations In The Eli Whitney Forest, New Haven, Connecticut, Ralph C. Hawley, Harold J. Lutz
Yale School of the Environment Bulletin Series
No abstract provided.
White Pine Blister Rust In Western North America, J. L. Mielke
White Pine Blister Rust In Western North America, J. L. Mielke
Yale School of the Environment Bulletin Series
No abstract provided.
Vegetation Of The Northern Part Of Cherry County, Nebraska, William L. Tolstead
Vegetation Of The Northern Part Of Cherry County, Nebraska, William L. Tolstead
Conservation and Survey Division: Faculty and Staff Publications
Agricultural practices in the Great Plains of North America are now in a period of adjustment from a traditional agriculture initiated by pioneer farmers to a grazing economy based upon potentialities of climate and soil. The attainment of a proper system of land use has been retarded in many localities by the lack of definite information concerning the vegetation and its indicator significance. In this study of the vegetation of Cherry County, Nebraska, the interrelations between the plants and their environments are discussed, the dominant species are described, and changes in grasslands caused by seasons, grazing, and climatic cycles are …
Fifty-Sixth Annual Meeting Of The Iowa Academy Of Science And The Eleventh Annual Convention Of The Junior Academy Of Science Of Iowa, April 17 And 18, 1942, Iowa Academy Of Science
Fifty-Sixth Annual Meeting Of The Iowa Academy Of Science And The Eleventh Annual Convention Of The Junior Academy Of Science Of Iowa, April 17 And 18, 1942, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Range Sheep Industry In Kittitas County, Washington, Reginald M. Shaw
Range Sheep Industry In Kittitas County, Washington, Reginald M. Shaw
Geography Faculty Scholarship
This article summarizes the sheep industry in Kittitas County, Washington State as a microcosm of the entire Pacific Northwest sheep industry.
Yield Of Even-Aged Stands Of Loblolly Pine In Northern Louisiana, Walter H. Meyer
Yield Of Even-Aged Stands Of Loblolly Pine In Northern Louisiana, Walter H. Meyer
Yale School of the Environment Bulletin Series
No abstract provided.
Decay Of Western Hemlock In Western Oregon And Washington, G. H. Englerth
Decay Of Western Hemlock In Western Oregon And Washington, G. H. Englerth
Yale School of the Environment Bulletin Series
No abstract provided.
Growing Of White Pine On The Yale Forest Near Keene, New Hampshire, Ralph C. Hawley, Robert T. Clapp
Growing Of White Pine On The Yale Forest Near Keene, New Hampshire, Ralph C. Hawley, Robert T. Clapp
Yale School of the Environment Bulletin Series
No abstract provided.
Management Of Loblolly Pine In The Pine-Hardwood Region In Arkansas And In Louisiana West Of The Mississippi River, Herman H. Chapman
Management Of Loblolly Pine In The Pine-Hardwood Region In Arkansas And In Louisiana West Of The Mississippi River, Herman H. Chapman
Yale School of the Environment Bulletin Series
No abstract provided.
Activity Of Papain On Gelatin Mixtures, Edward J. Ruschmann
Activity Of Papain On Gelatin Mixtures, Edward J. Ruschmann
Bachelors’ Theses
Within the Marquette chemical laboratories under the direction and supervision of Dr. John R. Koch, professor and head of the Chemistry Department, many noteworthy advances in enzyme chemistry have been achieved. A new type all glass, single unit viscometer was developed and perfected by Koch and now is the basis of the study of enzyme activity by viscometric methods. The use of this viscometer is not limited solely to work in these laboratories but has also been used with great success in bating and brewing.
The Geographic Distribution Of Azotobacter And Rhizobium Meliloti In Nebraska Soils In Relation To Certain Environmental Factors, H. B. Peterson, T. H. Goodding
The Geographic Distribution Of Azotobacter And Rhizobium Meliloti In Nebraska Soils In Relation To Certain Environmental Factors, H. B. Peterson, T. H. Goodding
Nebraska Agricultural Experiment Station: Historical Research Bulletins
In this investigation a survey of Nebraska soils has been made in order to determine the distribution of the aerobic nonsymbiotic and symbiotic nitrogen fixers of the genera Azotobacter and Rhizobium respectively. In connection with this survey, some of the characteristics of the soils which may bring about this distribution were studied. Up to this time practically no research has been reported on the microflora of the soils of Nebraska. Hence there is little basis for predicting the activity of these organisms under environmental conditions as they exist here. It is hoped that this work will not only supply some …
The Effects Of A Carbohydrate Deficient Diet On The Mouse, Walter Rudolph Sala
The Effects Of A Carbohydrate Deficient Diet On The Mouse, Walter Rudolph Sala
Bachelors’ Theses
Deficient diets have been used extensively as the basis for zoological experiments concerning the metabolism, and dietary requirements of individual animals. The majority of this work has been carried on with the rat as the subject, and resulting external physical variations as the experimental aim. The writer used the mouse as his subject, but, since no literature was available concerning this animal, a few similar experiments performed on the rat will be cited.
Tenth Annual Convention Of The Junior Academy Of Science Of Iowa, April 25 And 26, 1941, Iowa Academy Of Science
Tenth Annual Convention Of The Junior Academy Of Science Of Iowa, April 25 And 26, 1941, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Fifty-Fifth Annual Meeting Of The Iowa Academy Of Science And The Tenth Annual Convention Of The Junior Academy Of Science Of Iowa, April 25 And 26, 1941, Iowa Academy Of Science
Fifty-Fifth Annual Meeting Of The Iowa Academy Of Science And The Tenth Annual Convention Of The Junior Academy Of Science Of Iowa, April 25 And 26, 1941, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Penetration Of The Walls Of Wood Cells By The Hyphae Of Wood-Destroying Fungi, Phimister Proctor Jr.
Penetration Of The Walls Of Wood Cells By The Hyphae Of Wood-Destroying Fungi, Phimister Proctor Jr.
Yale School of the Environment Bulletin Series
No abstract provided.
The Pipy Concretions Of The Arikaree, C. Bertrand Schultz
The Pipy Concretions Of The Arikaree, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
The pipy concretions of the Arikaree (lower Miocene) of Nebraska and adjacent states were first described by Nelson Horatio Darton (1899, p. 743) as "characteristic layers of hard, fine-grained, dark-gray concretions, often consisting of aggregations of long, irregular, cylindrical masses" (see Figures 30, 32, 34, and 35). The individual pipes vary in diameter from a few inches to several feet, and in length from a few inches to a hundred yards or more. Tests demonstrate that pipy concretions are composed of sand cemented by calcium carbonate. When dipped in acid the cement is dissolved and the concretion is reduced to …
The Ancestral Ursid, Hemicyon, In Nebraska, Edwin H. Colbert
The Ancestral Ursid, Hemicyon, In Nebraska, Edwin H. Colbert
Bulletin of the University of Nebraska State Museum (1924–2023)
During the summer of 1928, a University of Nebraska State Museum field party, composed of Dr. A. L. Lugn and the writer, made a collection of upper Miocene and lower Pliocene mammals in Brown and Cherry counties, Nebraska. This collection was sponsored and made possible by the generosity of the late Hon. Charles H. Morrill.
A Shovel-Tusked Mastodon, Arnebelodon Fricki, From Kansas, Erwin Hinckley Barbour, Claude W. Hibbard
A Shovel-Tusked Mastodon, Arnebelodon Fricki, From Kansas, Erwin Hinckley Barbour, Claude W. Hibbard
Bulletin of the University of Nebraska State Museum (1924–2023)
Since the Amebelodontinae were first announced (Barbour 1927), a number of examples of the genus Amebelodon have presented themselves in various parts of Nebraska, Colorado, and in several places in Kansas. Thus its range has already been materially extended, many skeletal parts added, and the hope kindled that knowledge of this remarkable group of proboscideans is destined to be greatly enriched within the next few years. As may be seen in the accompanying lists of the known parts of Amebelodon preserved in various museums, there are already at hand the bones necessary for the assemblage of a nearly complete composite …
A New Species Of Sphenophalos From The Upper Ogallala Of Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz
A New Species Of Sphenophalos From The Upper Ogallala Of Nebraska, Erwin Hinckley Barbour, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
The genus Sphenophalos was described by John C. Merriam (1909, p. 319-30), who based his description on a fragmentary horn-core (Uni. of Calif. No. 11887) from the late Tertiary deposits near Thousand Creek in northern Humbolt county, Nevada. Knowledge of Sphenophalos, however, is still confined to this single, fragmented type horn-core (Frick 1937, p. 472) and other fragmental specimens (Furlong 1932, p. 27-36).
A New Fossil Bovid From Nebraska With Notice Of A New Bison Quarry In Texas, C. Bertrand Schultz
A New Fossil Bovid From Nebraska With Notice Of A New Bison Quarry In Texas, C. Bertrand Schultz
Bulletin of the University of Nebraska State Museum (1924–2023)
An interesting and unique bovid skull was reported to the staff of the University of Nebraska State Museum in 1938 by Mr. Alvin McReynolds of Nehawka, Nebraska. The specimen was found in 1933 in a ravine north of Nehawka by Messrs. Merritt and Harold Dodson, brothers. Although the skull was not in place, it appears to have been washed out of a nearby Pleistocene clay deposit by floodwaters. The specimen is well preserved and is of a dark brown, almost black color. In 1938 it was loaned to the Museum for study and photographing but was not obtained as a …
Fifty-Fourth Annual Meeting Of The Iowa Academy Of Science And The Ninth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1940, Iowa Academy Of Science
Fifty-Fourth Annual Meeting Of The Iowa Academy Of Science And The Ninth Annual Convention Of The Junior Academy Of Science Of Iowa, April 19 And 20, 1940, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.