Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Selected Works (3373)
- University of Colorado Law School (1258)
- University of Wollongong (1157)
- Wayne State University (1116)
- University of Northern Iowa (737)
-
- Singapore Management University (733)
- Wright State University (694)
- University of Nebraska - Lincoln (639)
- University of Nevada, Las Vegas (588)
- Embry-Riddle Aeronautical University (571)
- Old Dominion University (543)
- Loyola Marymount University and Loyola Law School (461)
- Western Kentucky University (439)
- SelectedWorks (430)
- University of Dayton (407)
- SIT Graduate Institute/SIT Study Abroad (404)
- The University of Maine (393)
- World Maritime University (316)
- Portland State University (294)
- University of Vermont (277)
- Santa Clara University (272)
- California State University, Monterey Bay (253)
- University of Massachusetts Amherst (250)
- SUNY College Cortland (238)
- University of Arkansas, Fayetteville (237)
- Western Washington University (230)
- Claremont Colleges (227)
- Chinese Academy of Sciences (211)
- University of New Hampshire (206)
- University of South Florida (196)
- Keyword
-
- Climate change (440)
- United States (426)
- CMMB (416)
- Stander Symposium project (371)
- Sustainability (350)
-
- Agriculture (313)
- GeoQUEST (305)
- Colorado (264)
- Natural resources (248)
- Western Kentucky University (237)
- Outdoor education (231)
- California (230)
- Ecology (229)
- Environment (221)
- Conservation (214)
- Resilient Communities (177)
- Water (176)
- Australia (167)
- Historical resources (167)
- Early California maps (166)
- Environmental Studies (165)
- GIS (163)
- West (162)
- California Ranchos (161)
- Monterey County surveys (161)
- Water quality (156)
- Student publication (152)
- Technology (147)
- Education (146)
- Sea level rise (140)
- Publication Year
- Publication
-
- Faculty of Science - Papers (Archive) (1143)
- Journal of Modern Applied Statistical Methods (1088)
- Journal of the Iowa Academy of Science: JIAS (693)
- Research Collection School Of Computing and Information Systems (566)
- Kno.e.sis Publications (541)
-
- Independent Study Project (ISP) Collection (381)
- Daryl Bagley (374)
- Stander Symposium Projects (371)
- Journal of Digital Forensics, Security and Law (300)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (266)
- Research in Outdoor Education (231)
- World Maritime University Dissertations (221)
- Bulletin of Chinese Academy of Sciences (Chinese Version) (211)
- Electronic Theses and Dissertations (200)
- WKU Archives Records (194)
- Annual ADFSL Conference on Digital Forensics, Security and Law (188)
- RISK: Health, Safety & Environment (1990-2002) (166)
- Township and Range Surveys - BLM (162)
- Journal of Spatial Information Science (144)
- The Planet (140)
- USF Tampa Graduate Theses and Dissertations (138)
- Graduate Theses and Dissertations (137)
- Santa Clara Magazine (136)
- Theses and Dissertations (135)
- Walden Dissertations and Doctoral Studies (133)
- kutil kelamin Ampuh (133)
- Alif Nur (128)
- United States National Park Service: Publications (107)
- Journal of the Minnesota Academy of Science (104)
- UNLV Theses, Dissertations, Professional Papers, and Capstones (99)
- Publication Type
Articles 22471 - 22500 of 23870
Full-Text Articles in Physical Sciences and Mathematics
Area-Dependent Changes In Bird Densities In Iowa Marshes, Mike Brown, James J. Dinsmore
Area-Dependent Changes In Bird Densities In Iowa Marshes, Mike Brown, James J. Dinsmore
Journal of the Iowa Academy of Science: JIAS
Species richness and density of Iowa marsh birds were positively correlated with marsh area, but area accounted for 69% of the variation in species richness and only 19% of the variation in density. Although densities of five of nine species examined correlated with marsh area, total density was not significantly correlated with area when the effects of species richness were eliminated. Area was the most frequent significant variable in regression equations for species richness, total density, and the densities of nine individual species on six variables. Unlike species-area relationships, density-area relationships are relatively weak, and knowledge of other ecological factors …
Comparison Of Mass Selection And S1 Testing Recurrent-Selection Methods In Sorghum, R. E. Secrist, R. E. Atkins
Comparison Of Mass Selection And S1 Testing Recurrent-Selection Methods In Sorghum, R. E. Secrist, R. E. Atkins
Journal of the Iowa Academy of Science: JIAS
Mass selection and S1 testing are often used for the improvement of sorghum [Sorghum bicolor (L.) Moench] populations. Both recurrent selection methods have a place in applied breeding programs and should be used where they are likely to be most advantageous. S1 families of a random-mating sorghum population mass selected three cycles (C3) for individual-panicle weight [IAP1R(M)C3] were compared with S1 families from a population (C3) advanced from the same base (CO) population by using replicated yield tests in each cycle [ IAP4R(S1)C3]. Our objectives were to compare the performance in C3 of families developed …
Cover - Table Of Contents
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Studies Of The Precambrian Geology Of Iowa: Part 3. Geochronologic Data For The Matlock Drill Holes, W. R. Van Schmus, E. T. Wallin
Studies Of The Precambrian Geology Of Iowa: Part 3. Geochronologic Data For The Matlock Drill Holes, W. R. Van Schmus, E. T. Wallin
Journal of the Iowa Academy of Science: JIAS
U-Pb ages have been determined for quartz monzodiorite (2,535 ± 5Ma) recovered from drill hole ClO and for keratophyre (1,782±10 Ma) recovered from drill hole C5 of the Matlock exploration project. Sm-Nd whole-rock analyses for several rock types from the Otter Creek layered mafic complex recovered from several drill holes of the Matlock project yield an isochron age of 2,890 ± 90 Ma, with an ϵNd(t) of -0.9 ± 2.4. These ages document crustal evolution in northwest Iowa, including the southern margin of the Superior Province, over more than one billion years from 2.9 to 1.8 Ga. Isotopic data also …
An Annotated Checklist Of The Vascular Plant Flora Of Guthrie County, Iowa, Dean M. Roosa, Lawrence J. Eilers, Scott Zager
An Annotated Checklist Of The Vascular Plant Flora Of Guthrie County, Iowa, Dean M. Roosa, Lawrence J. Eilers, Scott Zager
Journal of the Iowa Academy of Science: JIAS
The known vascular plant flora of Guthrie County, Iowa, based on field, herbarium, and literature studies, consists of 748 taxa (species, varieties, and hybrids), 135 of which are naturalized. Species which appear on the state's list of endangered and threatened species, or are otherwise rare, are discussed.
There is an affinity of the plants of Guthrie County with those of the Ozark plateau, and with specialized habitats providing extensions of ranges for species normally found farther north or east.
Journal Of The Iowa Academy Of Science Submission Form And Instruction Sheet
Journal Of The Iowa Academy Of Science Submission Form And Instruction Sheet
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Part Ii - Regular Issue
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
The Role Of Mechanical Injury In An Experimental Transmission Of Flexibacter Columnaris To Fingerling Walleye, Manzoor Hussain, Robert C. Summerfelt
The Role Of Mechanical Injury In An Experimental Transmission Of Flexibacter Columnaris To Fingerling Walleye, Manzoor Hussain, Robert C. Summerfelt
Journal of the Iowa Academy of Science: JIAS
The role of mechanical injury in transmission of Flexibacter columnaris to walleye fingerlings (Stizostedion vitreum vitreum) was investigated. Two groups (1 and 2) of 10 fish each, 7 to 9 cm total length, were exposed to a suspension of F lexibacter columnaris containing 3 X 105 cfu/ mL; fish in group 1 were injured with a scratch along their flank; fish in group 2 were not injured. Two control groups (3 and 4) of 5 fish each were exposed to a sterile broth; group 3 was injured with a scratch and group 4 was not. In 72 h, morbidity was …
Estimates Of Quantitative Genetic Parameters M Iap2b(M) Random-Mating Sorghum Population, A. J. Maves, R. E. Atkins
Estimates Of Quantitative Genetic Parameters M Iap2b(M) Random-Mating Sorghum Population, A. J. Maves, R. E. Atkins
Journal of the Iowa Academy of Science: JIAS
Random-mating populations of sorghum [Sorghum bicolor (L.) Moench] are used extensively as germ plasm in the development of parental lines for hybrids. Populations improved by recurrent selection provide a useful source for the selection of superior parental lines. Our objective was to determine the effectiveness of mass selection for threshed-panicle weight by comparing the performance of lines (S1 families) chosen randomly from CO and C4 of sorghum population IAP2B. Sixty S1 families from each cycle were grown in five Iowa environments.
Four cycles of selection for panicle weight shifted the mean for grain yield favorably, and the range …
Editorial Board & Iowa Academy Of Science Officers And Directors
Editorial Board & Iowa Academy Of Science Officers And Directors
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
Iowa's Climate As Projected By The Global Climate Model Of The Goddard Institute For Space Studies For A Doubling Of Atmospheric Carbon Dioxide, E. S. Takle, S. Zhong
Iowa's Climate As Projected By The Global Climate Model Of The Goddard Institute For Space Studies For A Doubling Of Atmospheric Carbon Dioxide, E. S. Takle, S. Zhong
Journal of the Iowa Academy of Science: JIAS
Results of a global climate model that simulates climate under a doubling of atmospheric carbon dioxide (estimated to occur by the latter half of the twenty first century) have been interpolated to Iowa. Summer temperatures under such a doubling are projected to rise by 4 to 7°F (2.2 to 3.9°C) and winter temperatures by 10 to 11° (5.6 to 6.1°C). Estimates of space heating and cooling demands from these data suggest a 30 to 35% decrease in space heat demand and a 200 to 300% increase in space cooling demand. Temperature variability is projected to decrease. Precipitation estimates from global …
Heating Degree Days In Iowa Relative To Home Natural Gas Consumption, Conservation Efforts, And Long-Term Trends, Richard E. Carlson
Heating Degree Days In Iowa Relative To Home Natural Gas Consumption, Conservation Efforts, And Long-Term Trends, Richard E. Carlson
Journal of the Iowa Academy of Science: JIAS
A methodology is presented to assess the effectiveness of conservation efforts relative to home heating. Billing period heating degree days and natural gas consumption relationships are established for a typical household for nineteen heating seasons using simple linear regression. Associated correlations (r2 values) were greater than 0. 95 for nineteen different seasons. Regression coefficients (b0 and b1) were found to decrease with time indicating reduced natural gas consumption due to conservation efforts. Procedures are presented to illustrate dollar savings relative to conservation efforts using the regression relationships. Long-term trends for heating degree days at the Ames, …
Studies Of The Precambrian Geology Of Iowa: Part 1. The Otter Creek Layered Igneous Complex, Kenneth E. Windom, Karl E. Seifert, Raymond R. Anderson
Studies Of The Precambrian Geology Of Iowa: Part 1. The Otter Creek Layered Igneous Complex, Kenneth E. Windom, Karl E. Seifert, Raymond R. Anderson
Journal of the Iowa Academy of Science: JIAS
Rocks from a buried igneous body, herein called the Otter Creek layered igneous complex, were recovered by drilling in Archean rocks in northwestern Iowa. This complex consists of layers of ultramafic and mafic cumulate rocks, including bronzitite, harzburgite, dunite, gabbro, and anorthosite. These rocks have been subjected to low-grade metamorphism with a patagenesis including serpentine, chlorite, talc, uralitic amphiboles, magnetite, albite, epidote, sericite, and minor quartz and calcite. During its intrusion, the magma which gave rise to the layered body engulfed a large block of rock consisting of banded iron formation and thin lamprophyre dikes. Both the iron formation and …
Studies Of The Precambrian Geology Of Iowa: Part 2. The Matlock Keratophyre, Kenneth E. Windom, Karl E. Seifert, Raymond R. Anderson
Studies Of The Precambrian Geology Of Iowa: Part 2. The Matlock Keratophyre, Kenneth E. Windom, Karl E. Seifert, Raymond R. Anderson
Journal of the Iowa Academy of Science: JIAS
Felsic pyroclastic rock occurs in the Precambrian basement in northwestern Iowa. This rock was recovered by drilling and originally logged as rhyolite; however it is severely depleted in K2O, Rb, Ba, Cs, and other mobile elements and is more properly called keratophyre. The volcanic unit lies atop a layered mafic/ultramafic complex and contains xenoliths of gabbro apparently derived from the layered body. These xenoliths are severely altered and are composed of secondary hydrated and carbonated minerals. The gabbros are enriched in incompatible trace elements, whose abundance patterns complement those of the keratophyre. Trace element abundance patterns for the …
Annual Report Of The Iowa Academy Of Science, 1990-91, Paul E. Rider
Annual Report Of The Iowa Academy Of Science, 1990-91, Paul E. Rider
Journal of the Iowa Academy of Science: JIAS
Starting in 1976, annual reports have served as a continuing record of the activities of the Iowa Academy of Science. These augment a 100 year history of the Academy which was written in the centennial year of 1975.
This report covers the period from July 1, 1990 to June 30, 1991. It is based on the official records of the Academy (committee reports, Board minutes, correspondence) as well as the recollections, impressions and musings of the author.
Ua3/8/1 L.Y. Lancaster Professorship Report, Wku Ogden College Of Science & Technology
Ua3/8/1 L.Y. Lancaster Professorship Report, Wku Ogden College Of Science & Technology
WKU Archives Records
Report by Dr. Blaine Ferrell, L.Y. Lancaster Professor about activities for 1990-91 funded by the Ogden Foundation.
The Effect Of Age Misreporting In China On The Calculation Of Mortality Rates At Very High Ages, Ansley J. Coale, Shaomin Li
The Effect Of Age Misreporting In China On The Calculation Of Mortality Rates At Very High Ages, Ansley J. Coale, Shaomin Li
Management Faculty Publications
When mortality rates by age are calculated from recorded deaths and enumerated populations, rates at higher ages are typically in error because of misstated ages. Mortality rates for China in 1981 have been calculated from the number of deaths in 1981 in each household recorded in the 1982 census, and from the census population back-projected one year. Because age was determined from date of birth, and because persons of the Chinese culture have very precise knowledge of date of birth, the mortality rates even at high ages should be unusually accurate. This expectation is fulfilled for most of China, but …
A Comparison Of Meristics And Morphometrics Between Two Strains Of Pond Cultured Striped Bass (Morone Saxatilis), Steven Gornak
A Comparison Of Meristics And Morphometrics Between Two Strains Of Pond Cultured Striped Bass (Morone Saxatilis), Steven Gornak
Dissertations, Theses, and Masters Projects
No abstract provided.
Ua35/11 Student Honors Research Bulletin, Wku Honors Program
Ua35/11 Student Honors Research Bulletin, Wku Honors Program
WKU Archives Records
The WKU Student Honors Research Bulletin is dedicated to scholarly involvement and student research. These papers are representative of work done by students from throughout the university.
- Alkolibi, Fahad. Bowling Green Urban Heat Island
- Chattin, John. John Grimes' Abandoning of Religion in James Baldwin's Go Tell It on the Mountain
- Clark, Michelle. Abortion and the Moral Status of the Fetus
- Garrett, Kristy. The Making of a Serial Killer
- Lilley, Elizabeth. Is Environmental Recovery Possible in Prince William Sound Following the Alaskan Oil Spill?
- McMurtry, Brian. Biblical Imagery and Symbols in El Arbol De Oro
- Metzger, Kim. The Rise and Fall …
Lewis M. Gould Papers, Zach S. Henderson Library Special Collections
Lewis M. Gould Papers, Zach S. Henderson Library Special Collections
Finding Aids
This collection consists of the writings and personal papers of Lewis M. Gould. Materials span 1918-1991 and include his writings for Stars and Stripes, poems, and various clippings.
Find this collection in the University Libraries' catalog.
Jual Obat Aborsi Medan Kota Medan Sumatra Barat Silahkan Fon 082242266717, Acep Shop
Jual Obat Aborsi Medan Kota Medan Sumatra Barat Silahkan Fon 082242266717, Acep Shop
acep shop
What's The Sleepgram Pillows Made Of ?, Jmes Modmd
What's The Sleepgram Pillows Made Of ?, Jmes Modmd
jmes modmd
Resource Law Notes Newsletter, No. 21, Dec. 1990, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes Newsletter, No. 21, Dec. 1990, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)
No abstract provided.
Radon Contamination Of Residences In A City Built Upon A Karst Landscape Bowling Green, Warren County, Kentucky, James William Webster
Radon Contamination Of Residences In A City Built Upon A Karst Landscape Bowling Green, Warren County, Kentucky, James William Webster
Masters Theses & Specialist Projects
The United States Environmental Protection Agency (EPA) estimates that 8 to 12% of U.S. homes have radon concentrations that equal or exceed 4 picocuries per liter (pCi/l). A statewide screening of Kentucky by EPA resulted in an average residential radon concentration of 2.8 pCi/l with 17% of the homes at or above 4 pCi/l. EPA requires routine monitoring and maintenance or worker health records in mines and caves having radon daughter concentrations at or above 0.30 working levels (WL).
Bowling Green is a city located in a karst region of south central Kentucky. Residents of Bowling Green have been subjected …
Management Of Interdependent Data: Specifying Dependency And Consistency Requirements, Amit P. Sheth, Marek Rusinkiewicz
Management Of Interdependent Data: Specifying Dependency And Consistency Requirements, Amit P. Sheth, Marek Rusinkiewicz
Kno.e.sis Publications
Multiple databases that serve the needs of various application systems are considered. One of the significant problems in managing these databases is to maintain the related data items consistent to the required degree. This problem is frequently referred to as `redundant data management'. Since the term `redundancy' tends to imply that the data is unwanted or superfluous, the authors use the more general term `management of interdependent data'. Some preliminary ideas in this area are discussed. The problem of managing interdependent data is characterized, and some important types of interdatabase dependency are identified.
1990scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library
1990scholars And Artists Bibliography, Michael Schwartz Library, Cleveland State University, Friends Of The Michael Schwartz Library
Scholars and Artists Bibliographies
This bibliography was created for the annual Friends of the Michael Schwartz Library Scholars and Artists Reception, recognizing scholarly and creative achievements of Cleveland State University faculty, staff and emeriti
Santa Clara Magazine, Volume 33 Number 1, Fall 1990, Santa Clara University
Santa Clara Magazine, Volume 33 Number 1, Fall 1990, Santa Clara University
Santa Clara Magazine
12 - PRIESTS & MARRIAGE The Pope has allowed the ordination of nearly 50 married Episcopal priests since 1980. Some see this as a sign of hope for a married priesthood . By Julie Sly '82
18 - THE POWER OF ONE Because of her own personal tragedy, Mary Beth Cahill Phillips '76 forced the state of California to form Trustline, a registry parents can use to check out a nanny. By Susan Frey
20 - THE ART OF BIOGRAPHY Our natural curiosity about each other tempts us into reading biographies the same way we turn to novels. Is peering …