Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Environmental Sciences (12389)
- Earth Sciences (4538)
- Engineering (4192)
- Natural Resources and Conservation (4186)
- Education (3670)
-
- Other Environmental Sciences (3638)
- Physics (3576)
- Science and Mathematics Education (3531)
- Arts and Humanities (3506)
- Mechanical Engineering (3435)
- History (3411)
- United States History (3406)
- Other Mechanical Engineering (3405)
- Energy Systems (3404)
- History of Science, Technology, and Medicine (3403)
- Natural Resources Management and Policy (3168)
- Life Sciences (3054)
- Environmental Health and Protection (2924)
- Hydrology (2069)
- Geology (1807)
- Computer Sciences (1740)
- Water Resource Management (1647)
- Ecology and Evolutionary Biology (1569)
- Oceanography and Atmospheric Sciences and Meteorology (1402)
- Animal Sciences (1312)
- Environmental Indicators and Impact Assessment (1215)
- Geomorphology (1214)
- Environmental Monitoring (1101)
- Sedimentology (1089)
- Keyword
-
- Nebraska (720)
- Drought (174)
- Invasive species (160)
- Groundwater (144)
- United States (140)
-
- Water (112)
- Remote sensing (104)
- Climate change (97)
- Agriculture (92)
- Mongolia (92)
- Conservation (86)
- Coyote (85)
- White-tailed deer (83)
- Irrigation (77)
- Management (77)
- Test (74)
- Wildlife damage management (73)
- Hole (72)
- Logs (72)
- Human–wildlife conflicts (71)
- Evapotranspiration (70)
- Geology (67)
- Odocoileus virginianus (67)
- Sus scrofa (66)
- Map (65)
- Conservation and Survey Division (63)
- Birds (57)
- Great Plains (57)
- Resilience (55)
- Climate (54)
- Publication Year
- Publication
-
- Nebraska Tractor Tests (3402)
- School of Natural Resources: Faculty Publications (1735)
- United States Department of Agriculture Wildlife Services: Staff Publications (1625)
- United States Geological Survey: Staff Publications (1029)
- Conservation and Survey Division: Faculty and Staff Publications (903)
-
- The R Journal (708)
- Department of Earth and Atmospheric Sciences: Faculty Publications (673)
- The Prairie Naturalist (483)
- Great Plains Wildlife Damage Control Workshop Proceedings (478)
- United States Department of Commerce: Staff Publications (431)
- Department of Physics and Astronomy: Faculty Publications (375)
- School of Natural Resources: Dissertations, Theses, and Student Research (375)
- Kenneth Bloom Publications (369)
- Water Current Newsletter (296)
- Department of Chemistry: Faculty Publications (294)
- Peter Dowben Publications (284)
- David Sellmyer Publications (278)
- School of Computing: Conference and Workshop Papers (274)
- Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications (269)
- Department of Environmental Studies: Undergraduate Student Theses (267)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (266)
- The Probe: Newsletter of the National Animal Damage Control Association (243)
- Bird Control Seminars Proceedings (242)
- Department of Mathematics: Faculty Publications (230)
- Anthony F. Starace Publications (229)
- United States Agricultural Commodities in Drought Archive (219)
- School of Computing: Faculty Publications (205)
- School of Computing: Dissertations, Theses, and Student Research (201)
- Robert Katz Publications (191)
- Eastern Pine and Meadow Vole Symposia (185)
- Publication Type
- File Type
Articles 25651 - 25680 of 25788
Full-Text Articles in Physical Sciences and Mathematics
Studies Concerning The Elimination Of Experimental Error In Comparative Crop Tests, T. A. Kiesselbach
Studies Concerning The Elimination Of Experimental Error In Comparative Crop Tests, T. A. Kiesselbach
Nebraska Agricultural Experiment Station: Historical Research Bulletins
It is apparent that many sources of error have unconsciously entered into comparative crop yield tests. The very important matter of overcoming variation in soil conditions as a source of experimental error has been quite extensively studied and reported by various investigators during the past decade. The means suggested for reducing such error have been (1) repetition of plats and (2) correction of yields according to check plats planted to a uniform variety or treatment at stated intervals. Both methods have proved of value and a combination of both may often be used advantageously. Some danger always exists of error …
A Theorem On Semi-Continuous Functions, Henry Blumberg
A Theorem On Semi-Continuous Functions, Henry Blumberg
Department of Mathematics: Faculty Publications
Recently G. C. Young and A. Denjoy have communicated theorems—those in Denjoy's memoir are of an especially comprehensive character—dealing, in particular, with point sets where the four derivatives of a given continuous function are identical. It is the purpose of this note to treat an analogous problem that arises when "derivative" is replaced by "saltus." However, instead of confining ourselves to "saltus," we prove a more general theorem that applies essentially to all semi-continuous functions. We preface the proof of this theorem with the following
Conservation Survey Of Nemaha County, Nebraska, G. E. Condra
Conservation Survey Of Nemaha County, Nebraska, G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
The Potash Industry Of Nebraska, George E. Condra
The Potash Industry Of Nebraska, George E. Condra
George E. Condra Publications
No abstract provided.
Drainage Districts Of Southeastern Nebraska, Calvin Turner Moore
Drainage Districts Of Southeastern Nebraska, Calvin Turner Moore
Conservation and Survey Division: Faculty and Staff Publications
Throughout certain parts of the United States the importance of drainage is receiving increased recognition each year. The scope of investigations and operations covers many localities that are affected with "springy" lands, swamps, shallow lakes, overflowed lands, and tide lands.
A Short Story As Regards The Drainage Of Salt Creek, G. E. Condra
A Short Story As Regards The Drainage Of Salt Creek, G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Preliminary Report On The Clay Industry Of Nebraska, E. H. Barbour
Preliminary Report On The Clay Industry Of Nebraska, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
The Conservation Of Foods
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Preliminary Report On The Clay Industry Of Nebraska, Erwin Hinckley Barbour
Preliminary Report On The Clay Industry Of Nebraska, Erwin Hinckley Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Operator's Instruction Manual: Case Va, Nebraska Tractor Test Lab
Operator's Instruction Manual: Case Va, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
A Preliminary Report Of The Alkali Resources Of Nebraska, Nebraska Geological Survey
A Preliminary Report Of The Alkali Resources Of Nebraska, Nebraska Geological Survey
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Road Problems In Nebraska, G. E. Condra
Road Problems In Nebraska, G. E. Condra
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
The Natural Fuels Of Nebraska, Erwin H. Barbour
The Natural Fuels Of Nebraska, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Pumicite, E. H. Barbour
Nebraska Pumicite, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A Giant Nebraska Bear "Dinarchtotherium Merriama", E. H. Barbour
A Giant Nebraska Bear "Dinarchtotherium Merriama", E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A Preliminary Report Of The Alkali Resources Of Nebraska, E. H. Barbour
A Preliminary Report Of The Alkali Resources Of Nebraska, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Some Plant Cuticles From The Graneros Shale, A. C. Whitford
Some Plant Cuticles From The Graneros Shale, A. C. Whitford
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A Description Of Two New Fossil Fungi, A. C. Whitford
A Description Of Two New Fossil Fungi, A. C. Whitford
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Green Quartzite - An Important Future Industry, E. H. Barbour
Nebraska Green Quartzite - An Important Future Industry, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Green Quartzite An Import Ant Future Industry, Erwin H. Barbour
Nebraska Green Quartzite An Import Ant Future Industry, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
ln southern Harlan and Franklin counties, there occur many acres of green quartzite which must be of commercial consequence when made available. It is a neglected resource upon which important industries are sure to be based. With the development of this bed in view, the Nebraska Geological Survey has examined this area. and through this leaflet wishes to place the results before possible investors.
Notes On The Geology Of Sioux County, Nebraska, And Vicinity, H. J. Cook
Notes On The Geology Of Sioux County, Nebraska, And Vicinity, H. J. Cook
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
A New Sabertoothed Cat From Nebraska, Erwin H. Barbour, Harold J. Cook
A New Sabertoothed Cat From Nebraska, Erwin H. Barbour, Harold J. Cook
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
The Round Ligament Of Nebraska Proboscideans, E. H. Barbour
The Round Ligament Of Nebraska Proboscideans, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Minerals Which Excite Common Inquiry, E. H. Barbour
Nebraska Minerals Which Excite Common Inquiry, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
The Pennsylvanian Formations Of Southeastern Nebraska, Geo E. Condra, N. A. Bengtson
The Pennsylvanian Formations Of Southeastern Nebraska, Geo E. Condra, N. A. Bengtson
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.
Nebraska Fossils Which Excite Common Inquiry, Erwin H. Barbour
Nebraska Fossils Which Excite Common Inquiry, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
This paper must not be mistaken for a report on the fossils of Nebraska. It is merely a circular letter to correspondents describing and figuring those fossils only which occasion frequent comment. In two recent papers of the Survey consideration was given to the common minerals and rocks of Nebraska, and it seems opportune to briefly discuss our fossils in a like manner. Probably no other State can boast of such a well-preserved and varied fauna.
Nebraska Rocks Which Excite Common Inquiry, Erwin H. Barbour
Nebraska Rocks Which Excite Common Inquiry, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
This leaflet it intended to serve as an answer to correspondents who make inquiry about the rocks of Nebraska1. Unfortunately for those interested in such matters, the rocks of the State are few in number, and are deeply buried from view by sand and soil, so there are thousands of square miles in which even a pebble is a rarity. That our rocks are level and undisturbed is practically true. Still there are some surprisingly interesting folds and faults.
The Round Ligament Of Nebraska Proboscideans, Erwin H. Barbour
The Round Ligament Of Nebraska Proboscideans, Erwin H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
Comparisons of the acetabula of various mastodons and mammoths common to Nebraska show conclusively that absence of the round ligament is not a characteristic of the proboscidea, as generally accepted. From the specimens in our collections, there is evidence that the ligament was not on! y present, but was uncommonly large and well developed in the earlier Nebraska proboscideans. Examination of material collected since 1891, and preserved in the cabinets of the Nebraska State Museum. and the Morrill Geological Collections, makes it apparent that all Nebraska proboscideans had round ligaments, though perhaps the latest survivors did not.
A New Saber-Toothed Cat From Nebraska, Erwin H. Barbour, Harold J. Cook
A New Saber-Toothed Cat From Nebraska, Erwin H. Barbour, Harold J. Cook
Conservation and Survey Division: Faculty and Staff Publications
During the field season of 1913, while exploring the Pliocene beds of Brown County, Mr. A. C. Whitford, a Fellow in the Department of Geology, University of Nebraska, discovered the mandible of a new machaerodont cat. His work in this region was in the interest of the Nebraska Geological Survey and the Morrill Geological Expeditions.1
A New Mammoth, "Elephas Hayi," From Crete, Nebraska, E. H. Barbour
A New Mammoth, "Elephas Hayi," From Crete, Nebraska, E. H. Barbour
Conservation and Survey Division: Faculty and Staff Publications
No abstract provided.