Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Earth Sciences (58087)
- Computer Sciences (56995)
- Environmental Sciences (50996)
- Engineering (39640)
- Life Sciences (39201)
-
- Physics (35594)
- Chemistry (33517)
- Geology (29572)
- Mathematics (26800)
- Social and Behavioral Sciences (22483)
- Oceanography and Atmospheric Sciences and Meteorology (15995)
- Statistics and Probability (12906)
- Computer Engineering (12717)
- Education (12588)
- Soil Science (12082)
- Plant Sciences (11347)
- Natural Resources and Conservation (10095)
- Medicine and Health Sciences (9789)
- Arts and Humanities (9603)
- Astrophysics and Astronomy (9043)
- Electrical and Computer Engineering (8794)
- Artificial Intelligence and Robotics (8489)
- Natural Resources Management and Policy (8421)
- Sustainability (8356)
- Water Resource Management (8231)
- Applied Mathematics (7816)
- Environmental Health and Protection (6847)
- Science and Mathematics Education (6723)
- Databases and Information Systems (6700)
- Institution
-
- University of Nebraska - Lincoln (24325)
- Western Michigan University (19505)
- University of Kentucky (11985)
- TÜBİTAK (10319)
- Selected Works (9842)
-
- Singapore Management University (7539)
- Utah State University (7160)
- Missouri University of Science and Technology (6063)
- Old Dominion University (5956)
- University of Wollongong (4867)
- William & Mary (4146)
- Wright State University (3839)
- University of South Florida (3818)
- Portland State University (3803)
- University of Nevada, Las Vegas (3624)
- Louisiana State University (3425)
- China Simulation Federation (3382)
- Brigham Young University (3227)
- City University of New York (CUNY) (3126)
- Purdue University (2811)
- Air Force Institute of Technology (2679)
- Claremont Colleges (2638)
- California Polytechnic State University, San Luis Obispo (2568)
- University of Arkansas, Fayetteville (2475)
- University of Texas Rio Grande Valley (2429)
- Department of Primary Industries and Regional Development, Western Australia (2366)
- Western Washington University (2343)
- University of Texas at El Paso (2327)
- Chinese Chemical Society | Xiamen University (2294)
- Chulalongkorn University (2267)
- Keyword
-
- Machine learning (1689)
- Climate change (1653)
- Western Australia (1597)
- Mathematics (1354)
- Sustainability (1115)
-
- Chemistry (1095)
- Physics (1049)
- Water quality (920)
- Deep learning (893)
- Geology (879)
- Groundwater (852)
- Machine Learning (826)
- Simulation (810)
- Research and Technical Reports (797)
- United States (755)
- Water (749)
- Nebraska (744)
- Education (737)
- Agriculture (713)
- Artificial intelligence (712)
- Climate (690)
- Grains and field crops (674)
- Statistics (674)
- Security (668)
- Management (666)
- Computer Science (656)
- Optimization (653)
- Ecology (652)
- Conservation (647)
- Remote sensing (640)
- Publication Year
-
- 2024 (8307)
- 2023 (12505)
- 2022 (17776)
- 2021 (27716)
- 2020 (15041)
-
- 2019 (13990)
- 2018 (13425)
- 2017 (12369)
- 2016 (12456)
- 2015 (11661)
- 2014 (11696)
- 2013 (10880)
- 2012 (11132)
- 2011 (9691)
- 2010 (8271)
- 2009 (7343)
- 2008 (7113)
- 2007 (6600)
- 2006 (5735)
- 2005 (5429)
- 2004 (4358)
- 2003 (3797)
- 2002 (3372)
- 2001 (2953)
- 2000 (2881)
- 1999 (2522)
- 1998 (2528)
- 1997 (2423)
- 1996 (2382)
- 1995 (2141)
- Publication
-
- Legacy Scout Tickets from Pure Oil Company (11044)
- Theses and Dissertations (8367)
- IGC Proceedings (1993-2023) (7168)
- Research Collection School Of Computing and Information Systems (6972)
- Thin Sections (5745)
-
- Electronic Theses and Dissertations (4212)
- Faculty Publications (3700)
- Journal of System Simulation (3382)
- Nebraska Tractor Tests (3347)
- Turkish Journal of Electrical Engineering and Computer Sciences (3020)
- Masters Theses (2634)
- Turkish Journal of Chemistry (2628)
- Turkish Journal of Mathematics (2494)
- Journal of Electrochemistry (2294)
- Honors Theses (2164)
- Faculty of Informatics - Papers (Archive) (2013)
- Physics Faculty Publications (1943)
- Bulletin of the Mineral Research and Exploration (1893)
- Doctoral Dissertations (1883)
- Dissertations, Theses, and Masters Projects (1876)
- Reports (1834)
- Dissertations (1827)
- Physics Faculty Research & Creative Works (1771)
- Department of Computer Science Technical Reports (1721)
- USF Tampa Graduate Theses and Dissertations (1607)
- School of Natural Resources: Faculty Publications (1586)
- United States Department of Agriculture Wildlife Services: Staff Publications (1528)
- Australian Institute for Innovative Materials - Papers (1524)
- Electronic Thesis and Dissertation Repository (1477)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (1427)
Articles 286081 - 286110 of 293418
Full-Text Articles in Physical Sciences and Mathematics
Fortran Programs For The Calculation Of Most Of The Commonly Used Experimental Design Models, H. Wain Greenhalgh
Fortran Programs For The Calculation Of Most Of The Commonly Used Experimental Design Models, H. Wain Greenhalgh
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Two computer programs were developed using a CDC 3100. They were written in FORTRAN IV.
One program uses four tape drives, one card reader, and one printer. It will calculate factorial analysis of variance with or without covariance and/or multivariate analysis for one to eight factors and up to twenty-five variables.
The other program is used for completely randomized designs, randomized block designs, and latin square designs. It will handle twenty-five treatments, rows (blocks), and columns. The program can handle fifteen variables using any number of these variables for covariates.
Conductivity And Photoconductivity Of As-S-I Glasses, Ahmed Abdel-Hamid El-Difrawi
Conductivity And Photoconductivity Of As-S-I Glasses, Ahmed Abdel-Hamid El-Difrawi
Archived Theses and Dissertations
No abstract provided.
A Study Of Aluminium-Lead Borate Glass Composite Materials, Aziza Nour El-Din Ragai
A Study Of Aluminium-Lead Borate Glass Composite Materials, Aziza Nour El-Din Ragai
Archived Theses and Dissertations
No abstract provided.
Minimax Theorems And Product Solutions., T. Parthasarathy Dr.
Minimax Theorems And Product Solutions., T. Parthasarathy Dr.
Doctoral Theses
It was John von-leumann who laid the foundationa of a miathematical theory of games of strategy . The climax of the pioneering period of de velopment oame in 1944 with the publication of The Theory of Gamea And Economic Behaviour by John von-Neumann and Oscar Morgenstern. Tha field of game theory ja now well established and widely diffused through the mathematical world- thanke to the auccese of thẻ volumes entitled Contributione to the theory of games and Advances in game theory . These volumes conprise a collection of contributions to the theory of games and answer some questions raised explicitly …
The Seventy-Ninth Session Of The Iowa Academy Of Science And The Thirty-Fifth Convention Of The Iowa Junior Academy Of Science, April 21, 22, 1967, Iowa Academy Of Science
The Seventy-Ninth Session Of The Iowa Academy Of Science And The Thirty-Fifth Convention Of The Iowa Junior Academy Of Science, April 21, 22, 1967, Iowa Academy Of Science
Iowa Academy of Science Documents
No abstract provided.
Test 959: Ford 2000 8-Speed (Diesel), Nebraska Tractor Test Lab
Test 959: Ford 2000 8-Speed (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Test 958: Ford 2000 4-Speed (Diesel), Nebraska Tractor Test Lab
Test 958: Ford 2000 4-Speed (Diesel), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF TEST REPORT GENERAL CONDITIONS East tractor is a production model equipped for common usage. Power consuming accessories can be disconnected only when it is convenient for the operator to do so in practice. Additional weight can be added as ballast if the manufacturer regularly supplies it for sale. The static tire loads and the inflation pressures muse conform to recommendations in the Tire Standards published by the Society of Automotive Engineers. PREPARATION FOR PERFORMANCE RUNS The engine crank case is drained and refilled with a measured amount of new oil conforming to specifications in the operator’s manual. The …
Some Observations On The Chemical Behavior Of Carrier-Free Iodine-131 And Dilute Carrier Iodine0127, Manning S. Reynolds
Some Observations On The Chemical Behavior Of Carrier-Free Iodine-131 And Dilute Carrier Iodine0127, Manning S. Reynolds
Chemistry and Chemical Biology ETDs
Unexpected behavior by very small amounts of iodine has been noted by biochemical, medical, and ecological workers. It also has been shown that mild oxidation of carrier-free iodide-131 produced previously unknown species of iodine compounds. It was of interest to determine whether such species also result from the reduction of iodate.
While studying the formation of carrier-free iodate-131 by perchloric acid oxidation of iodide-131 at elevated temperatures, it was found that the acid is not directly responsible for the formation of iodate. Instead, the oxidation is accomplished by a volatile material (thought to be chlorine dioxide) formed only in perchloric …
Earthworms: Their Intensive Propagation And Use In Biological Soil Building - Part Vi, Thomas Barrett
Earthworms: Their Intensive Propagation And Use In Biological Soil Building - Part Vi, Thomas Barrett
Green Revolution
Reprint of section of book Earthworms by Thomas Barrett.
A New Family Of Partially Balanced Incomplete Block Designs With Some Latin Square Design Properties, Dale M. Mesner
A New Family Of Partially Balanced Incomplete Block Designs With Some Latin Square Design Properties, Dale M. Mesner
Department of Mathematics: Faculty Publications
An extensive family of two-class PBIB designs is defined in Section 1and given the title of NL designs. Several analogies of NL designs with Latin square type designs are discussed in Sections 1 and 2. Some of these designs have already appeared in scattered contexts. Section 3 gives a construction based on finite geometry for an infinite class of XL designs, and others can be constructed by methods to be taken up elsewhere. An extension to designs with more than two associate classes is indicated in Section 4.
Metal Complexes Of 1-Substituted-3-Hidroxyueeas, James C. Dabrowiak
Metal Complexes Of 1-Substituted-3-Hidroxyueeas, James C. Dabrowiak
Masters Theses
No abstract provided.
Development Of A Method For Measuring Magneto-Optical Rotatory Dispersion, Donald K. Loving
Development Of A Method For Measuring Magneto-Optical Rotatory Dispersion, Donald K. Loving
Masters Theses
No abstract provided.
Extensions Of The Theory Of Positive Operators And Their Relationship To Minimax Games., T. E.S. Raghavan Dr.
Extensions Of The Theory Of Positive Operators And Their Relationship To Minimax Games., T. E.S. Raghavan Dr.
Doctoral Theses
The theory of positive matrices (matrioco with non- negative entries) nnd the the ory of positive operetors are used extensively in the study of vibrationa of mechanical eysteme l16], stochaatic proceuses (36] nd mathematical economics ((9] and L20].) It is well known from the claseical theoreme of Perron and Frobenius ((13), [14) and (25] that any non-eingul ar squere matrix with non-negative entries has a positive cigenvalue which ts maximal in modulus among al1 the eigenvalues of the matrix. Further for this positive eigenvalue, it has a non-null eigenvector with all components non-negative. If the matrix is also irroduc lble11) …
Solutions Of Some Balanced Doubly Balanced And Partially Balanced Statistical Designs., Chilakamarri Ramanujacharyulu Dr.
Solutions Of Some Balanced Doubly Balanced And Partially Balanced Statistical Designs., Chilakamarri Ramanujacharyulu Dr.
Doctoral Theses
The theory and methods of con struction of statistical designs have connections with Modern algebraic systems, theory of numbers, arithmetic theory of quadratic forms, information theory and construction of codes. The properties of finite linear spaces have been used for the construction of (i) complete set of mutually orthogonal latin squares (Bose and Nair, 1941) (ii) balanced incomplete block designs (Bose 1939) (iii) partially balanced incomplete block designs (Bose and Nair 1939) (iv) designs where some effects of treatments are confounded (Bose, 1947). Primrose (1951) studied quadric surfaces and used them in the construction of balanced incomplete block designs. Roychoudhuri …
Closing Remarks - Third Vertebrate Pest Conference, Richard H. Dana
Closing Remarks - Third Vertebrate Pest Conference, Richard H. Dana
Vertebrate Pest Conference roceedings: 3rd (1967)
The record of this meeting will stand as a tribute to all of those who participated in the Third Vertebrate Pest Conference. It should remind them for years to come of their worthwhile contributions.
Proceedings: Third Vertebrate Pest Conference -- Frontmatter & Contents
Proceedings: Third Vertebrate Pest Conference -- Frontmatter & Contents
Vertebrate Pest Conference roceedings: 3rd (1967)
Sponsored by the California Vertebrate Pest Technical Committee
Maynard W. Cummings - Chairman
Richard H. Dana - Vice Chairman
Rex E. Marsh - Secretary-Treasurer
GENERAL CHAIRMAN OF CONFERENCE - Maynard W. Cummings, Assistant State Director, Agricultural Extension Service, University of California, Davis, California. VICE-CHAIRMAN OF CONFERENCE - Richard H. Dana, Vertebrate Pest Control Specialist, California Department of Agriculture, Sacramento, California. PROGRAM CHAIRMAN - Charles C. Siebe, Vertebrate Pest Control Specialist, California Department of Agriculture, Sacramento, California. PUBLICITY CHAIRMAN - Rex E. Marsh, Associate Specialist, Department of Animal Physiology, University of California, Davis, California. ARRANGEMENTS CHAIRMAN - Jerry P. Clark, Agricultural …
Opening Remarks - Third Vertebrate Pest Conference, Maynard W. Cummings
Opening Remarks - Third Vertebrate Pest Conference, Maynard W. Cummings
Vertebrate Pest Conference roceedings: 3rd (1967)
To open this Third Vertebrate Pest Conference is a real privilege. It is a pleasure to welcome all of you in attendance, and I know there are others who would like to be meeting with us, but, for one reason or another cannot be. However, we can serve them by taking back the results of discussion and by making available the printed transactions of what is said here. It has been the interest and demand for the proceedings of the two previous conferen- ces which, along with personal contacts many of you have with the sponsoring committee, have gauged the …
Aircraft As A Means Of Baiting Ground Squirrels, Rex E. Marsh
Aircraft As A Means Of Baiting Ground Squirrels, Rex E. Marsh
Vertebrate Pest Conference roceedings: 3rd (1967)
Aircraft might soon become an important tool for baiting ground squirrels (Citellus beecheyi beecheyi and C. b. fisheri) on California rangeland. Until recently, almost all squirrel control has been conducted by the hand-baiting method, with grain bait scattered from horseback in spoon-size amounts near squirrel burrows. Ground squirrels are considered a major pest of rangeland in many parts of the West. They not only compete with livestock for forage but also are responsible for substantial losses to cereal and other crops. The magnitude of the problem is exemplified by the fact that, in California alone, over 6,000,000 gross acres of …
Problems In County-Wide Rodent Control Programming, Loring White
Problems In County-Wide Rodent Control Programming, Loring White
Vertebrate Pest Conference roceedings: 3rd (1967)
Vertebrate pest control is recognized and sanctioned as a legitimate function of county government in California, not only by statute but also by a century of tradition. This is an anomaly. Ordinarily, regulatory agricultural pest control programs are part of our plant quarantine system, undertaken against newly introduced pests or those which are not of common occurrence. Programs against vertebrate pests, on the other hand, are carried on where the species involved are common, usually are abundant and often are indigenous. The reason for this lies buried in a bit of history that is very pertinent to my subject.
Epizootic Ecology In The Training Program Of The Vector-Borne Disease Section, Harold E. Stark
Epizootic Ecology In The Training Program Of The Vector-Borne Disease Section, Harold E. Stark
Vertebrate Pest Conference roceedings: 3rd (1967)
To fulfill the primary objective of the Vector-Borne Disease Section of NCDC to reduce the incidence of vector-borne diseases - a series of courses on vertebrates and arthropods and their role as reservoirs, vectors, and disease-causing agents is presented. Literature is prepared and a museum is maintained. One of these courses, Epizootic Ecology, illustrates some of the aspects dealt with in these courses. Definitions and concepts are presented followed by a brief review of principles of epidemiology and ecology. Specific examples constitute the bulk of the course. One of these, tularemia, is especially useful for the purposes of this course …
The Current Status Of Plague In California, Keith F. Murray
The Current Status Of Plague In California, Keith F. Murray
Vertebrate Pest Conference roceedings: 3rd (1967)
At the first Vertebrate Pest Control Conference in 1964, I traced the history of plague control in California and outlined a revised approach, based on newer concepts of plague ecology. In our state of relative ignorance, this required a number of unproved assumptions about plague occurrence in California that verged on crystal ball gazing. These were principally that (1) plague persists in relatively resistant rodent species in certain favorable locations, (2) ground squirrels and chipmunks experience periodic epizootics, but are not permanent reservoirs, (3) plague "foci" of the past were merely sites of conspicuous epizootics, they did not necessarily correspond …
The Current Status Of Wild Animal Rabies In California, George L. Humphrey
The Current Status Of Wild Animal Rabies In California, George L. Humphrey
Vertebrate Pest Conference roceedings: 3rd (1967)
During the 15-years 1952-1966, a total of 3504 cases of animal rabies were reported in California, an average of over 230 cases annually (Table 1). Of these 3504 cases, 2255 or nearly 65 percent were reported in wildlife species. An estimate sometimes used is that for every reported or recognized case of wild animal rabies, 10 cases probably occurred without recognition. Using the foregoing "rule-of-thumb", it can be hypothesized that during the 15-years 1952-1966, an estimated 22,600 or more cases of wildlife rabies occurred in California. The addition of the over 1200 cases of rabies reported in domestic animals during …
Good Practice In Vertebrate Pest Control, Philip J. Spear
Good Practice In Vertebrate Pest Control, Philip J. Spear
Vertebrate Pest Conference roceedings: 3rd (1967)
Good practice in pest control is a responsibility of several elements in our democratic, free-enterprise society. Most notably, these are: (1) the general public, (2) responsible government agencies and (3) industry. Before I comment about the responsibilities of each of these three groups, let me tell you about the work of structural pest control operators and their interests in vertebrate pest control. The pest control industry which I discussed in detail at the Second Vertebrate Pest Control Conference (1) continues to grow and expand its fields of activity. At the present time, it is our estimate (2) that 26,700 persons …
Review Of Animal Repellents, Jack F. Welch
Review Of Animal Repellents, Jack F. Welch
Vertebrate Pest Conference roceedings: 3rd (1967)
A review of the literature on this subject reveals there is considerable confusion regarding the meaning of the word "repellent" as it relates to animal control. Some people make a liberal interpretation and include any material or device that will alter the pattern of activity of an animal through response to sight, sound, taste, odor, or touch. Although such an interpretation may be valid, for this paper I would like to confine my discussion to "chemical repellents" -- materials that, when applied to seeds, plants, or other materials being damaged by animals, will reduce depredation through taste, odor, or possibly …
Animal Control - Progress, Problems And Professionalism, Robert M. Sutton Jr.
Animal Control - Progress, Problems And Professionalism, Robert M. Sutton Jr.
Vertebrate Pest Conference roceedings: 3rd (1967)
I want to take some liberty with my title as it is rather general. Specifically, I want to discuss some matters of mutual concern, and I will touch lightly upon our Division's activities and the status of our reorganization and redirection. In so doing, I do not propose to rehash the several talks that have been previously given and the papers written on what's new in animal control. Rather, I shall use this opportunity to examine a few problems that confront our Division, and in many cases, that confront everyone concerned with vertebrate pest control. We are now, in a …
Rats, Bombs, And Paradise - The Story At Eniwetok, William B. Jackson
Rats, Bombs, And Paradise - The Story At Eniwetok, William B. Jackson
Vertebrate Pest Conference roceedings: 3rd (1967)
At Eniwetok Atoll in the Marshall Islands, rats have been involved in an intriguing story. Polynesian rats were probably the only rodents present until after World War 11 when roof rats were brought in along with supplies and equipment for the atomic test program in the late 40's or early 50's. Some islets of the atoll, originally covered with coconut plantations, were denuded by heat, shock, and tidal waves following the detonation of devices. Initially radiation levels were high, but radioactive decay and dilution reduced the radiation hazard, and today the background radiation is well within the safe range. Many …
Blackbirds - Depredation, Research And Control In Ohio And The Midwest, Thomas M. Stockdale
Blackbirds - Depredation, Research And Control In Ohio And The Midwest, Thomas M. Stockdale
Vertebrate Pest Conference roceedings: 3rd (1967)
The earliest settlers in Ohio and the Midwest suffered losses to birds. First it was animal losses to birds of prey, then crop losses to passenger pigeons. Today it is blackbirds! In 1900, F. E. L. Beal conducted an analysis of the digestive tracts of blackbirds collected in the Midwest and found that the preferred food in the summer months was soft seeds. A similar study which I conducted on redwinged blackbirds in 1959 showed that 90% of their diet was composed of soft seeds, primarily milk and dough stage corn during the late summer and early fall. Presently we …
Measuring Bird Damage To Corn, John T. Linehan
Measuring Bird Damage To Corn, John T. Linehan
Vertebrate Pest Conference roceedings: 3rd (1967)
When corn is damaged by birds, kernels are eaten or "milked" and the affected ears are left with fewer intact kernels. The resulting damage, or loss, can be expressed in terms of the number, weight, volume, or value of the kernels that were removed or pecked. Assessment of loss thus frequently entails measuring, counting, or estimating from evidence of kernels lost. Estimates of loss resulting from the activity of birds should express the difference in value between a crop grown under the conditions that prevail and the value under the hypothetical condition of no adverse bird activity. To offset the …
Blackbird Damage Control With Chemical Frightening Agents, Paul P. Woronecki, Joseph L. Guarino, John W. De Grazio
Blackbird Damage Control With Chemical Frightening Agents, Paul P. Woronecki, Joseph L. Guarino, John W. De Grazio
Vertebrate Pest Conference roceedings: 3rd (1967)
Birds involved in damage or nuisance situations also have beneficial qualities, and most species are protected by State and Federal laws. Programs designed to alleviate bird problems, particularly those involving blackbirds, should first seek to discourage the birds from using problem areas and not to eliminate populations by direct reductional control. Habitat manipulation and mechanical frightening devices are useful techniques for discouraging bird activity, but certain chemical frightening agents have distinct advantages in some situations. We have found these agents particularly effective when used to control blackbird damage. Chemical frightening agents can be divided into two groups, the lethal and …