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Articles 6781 - 6810 of 7450
Full-Text Articles in Entire DC Network
Journal Of Mathematics And Science: Collaborative Explorations
Journal Of Mathematics And Science: Collaborative Explorations
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Reports On A Course For Prospective High School Mathematics Teachers, D. A. Stone
Reports On A Course For Prospective High School Mathematics Teachers, D. A. Stone
Journal of Mathematics and Science: Collaborative Explorations
The author describes his design for a course entitled Secondary School Mathematics from an Advanced Viewpoint. He adds subjective comments on how his design has worked in practice.
A Simple Anharmonic Oscillator, K. Durlacher, J. Boyd, T. Didascalou Waterman
A Simple Anharmonic Oscillator, K. Durlacher, J. Boyd, T. Didascalou Waterman
Journal of Mathematics and Science: Collaborative Explorations
No abstract provided.
Integration Of Multimedia Interactive Web Tools With In-Class Active Learning, A. Ganz, K. Wongthavarawat, A. Phonphoem
Integration Of Multimedia Interactive Web Tools With In-Class Active Learning, A. Ganz, K. Wongthavarawat, A. Phonphoem
Journal of Mathematics and Science: Collaborative Explorations
In this paper, we present our experience with an introduction to engineering course in which we used a combination of active and collaborative teaching methods, multimedia web-based material, and web-based interactive tools. The students were engaged in active learning in class with methods such as demonstrations, hands-on work, and group work. After class, the students used the web-based material that we developed, such as multiple choice quizzes, interactive applets, and animations. We have also developed a number of web-based course management tools that were used by the course instructors. We conclude that both the students and instructors had a very …
The Thayer Method: Student Active Learning With Positive Results, E. Connors
The Thayer Method: Student Active Learning With Positive Results, E. Connors
Journal of Mathematics and Science: Collaborative Explorations
Graduation from West Point requires successful completion of four courses in the mathematical sciences. These core mathematics courses include topics in discrete dynamical systems, differential and integral calculus (single variable and multivariable), differential equations, linear algebra, probability, and statistics. The instructional system employed throughout the core is the "Thayer Method," named for Colonel Sylvanus Thayer, "the Father of the Military Academy." In the Thayer Method, traces of cooperative education and "discovery learning" are evident. It is quintessential active learning. The West Point catalyst is the fundamental principle that cadets are responsible for their own education.
Teaching Innovations In An Introductory Physics Course For Non-Science Majors, W. J. Mullin
Teaching Innovations In An Introductory Physics Course For Non-Science Majors, W. J. Mullin
Journal of Mathematics and Science: Collaborative Explorations
I have made several innovations to Physics 114: Physics of Sound, a course for Communication Disorders and General Education students at the University of Massachusetts. These changes include the use of a network of wireless communication devices called a Personal Response System, on-line tutorials and classnotes, a collaborative discussion section, exam corrections, microthemes, extra-credit papers, group extra-credit projects, and the use of student teaching assistants.
Video Voyeurism, Privacy, And The Internet: Exposing Peeping Toms In Cyberspace, Clay Calvert, Justin Brown
Video Voyeurism, Privacy, And The Internet: Exposing Peeping Toms In Cyberspace, Clay Calvert, Justin Brown
Cardozo Arts & Entertainment Law Journal
No abstract provided.
Between Friends: Seven Letters From Marjorie Kinnan Rawlings To Ethel Fairmont Snyder Beebe, Nancy S. Weyant
Between Friends: Seven Letters From Marjorie Kinnan Rawlings To Ethel Fairmont Snyder Beebe, Nancy S. Weyant
The Marjorie Kinnan Rawlings Journal of Florida Literature
No abstract provided.
"Truer Than True": Memory, Imagination, And Believed-In Imaginings In Connie May Fowler's Remembering Blue, Wendy Beaver
"Truer Than True": Memory, Imagination, And Believed-In Imaginings In Connie May Fowler's Remembering Blue, Wendy Beaver
The Marjorie Kinnan Rawlings Journal of Florida Literature
No abstract provided.
Vol Ix (2000)
The Marjorie Kinnan Rawlings Journal of Florida Literature
No abstract provided.
Corporate Governance In A Global Environment: The Search For The Best Of All Worlds, Timothy L. Fort, Cindy A. Schipani
Corporate Governance In A Global Environment: The Search For The Best Of All Worlds, Timothy L. Fort, Cindy A. Schipani
Vanderbilt Journal of Transnational Law
This Article reflects on the various visions of corporate governance. Initially, the Article reviews the contractarian and communitarian theories of the corporation. The communitarian theory views the corporation as a separate entity, with social responsibilities not only to the shareholders but to the firm's other stakeholders and society at large. On the other hand, the contractarian approach considers the firm's shareholders as the primary constituency to whom management is accountable. Voluntary contracting and market forces align the interests of management and shareholders. The Article next analyzes salient features of corporate governance in the United States, Japan, and Germany. The United …
Unlabel Their Frankenstein Foods!: Evaluating A U.S. Challenge To The European Commission's Labeling Requirements, John S. Fredland
Unlabel Their Frankenstein Foods!: Evaluating A U.S. Challenge To The European Commission's Labeling Requirements, John S. Fredland
Vanderbilt Journal of Transnational Law
The recent development of genetically-modified agriculture has been accepted enthusiastically by the U.S. agricultural producers, but the European public has expressed fear that the so-called "Frankenstein Foods" may be harmful to health and the environment. Faced with this public outcry, the European Commission. passed regulations, which mandated that food products containing genetically-modified agricultural products be labeled as such. Although the European Commission appears to have passed its labeling requirements without express or hidden protective intent, the regulations stand to make U.S. producers less competitive in the European market than their European counterparts. This Note contends that the United States should …
1999 Annual Report Of The Commissioners, Treasurer, Other County Officers And The Strafford County Delegation Strafford County, New Hampshire For The Year Ending December 31, 1999., Stafford County Representatives
1999 Annual Report Of The Commissioners, Treasurer, Other County Officers And The Strafford County Delegation Strafford County, New Hampshire For The Year Ending December 31, 1999., Stafford County Representatives
Strafford County, NH Annual Reports
This is an annual report containing vital statistics for a county in the state of New Hampshire.
Fear Of Frankenfoods: A Better Labeling Standard For Genetically Modified Foods, Matthew Franken
Fear Of Frankenfoods: A Better Labeling Standard For Genetically Modified Foods, Matthew Franken
Minnesota Journal of Law, Science & Technology
No abstract provided.
Genetic Relationship Among Diabrotica Species (Coleoptera: Chrysomelidae) Based On Rdna And Mtdna Sequences, Allen L. Szalanski, Richard L. Roehrdanz, David B. Taylor
Genetic Relationship Among Diabrotica Species (Coleoptera: Chrysomelidae) Based On Rdna And Mtdna Sequences, Allen L. Szalanski, Richard L. Roehrdanz, David B. Taylor
Department of Entomology: Faculty Publications
Corn rootworms of the genus Diabrotica (Coleoptera: Chrysomelidae) are the most serious pest of corn in midwestern United States. Despite their economic importance, phylogenetic relationships within the genus remain unclear. Phylogenetic analysis of five Diabrotica species and subspecies was undertaken using DNA sequences of the nuclear rDNA first internal transcribed spacer region (ITS1) and a portion of the mtDNA cytochrome oxidase I and II genes (COI/COII). Parsimony and maximum likelihood analysis indicated that southern corn rootworm is sister to banded cucumber beetle, whereas, northern corn rootworm forms a distinct clade with western and Mexican corn rootworm. ITS1 and COI/COII were …
Differentiation Of Three Phenotypically Similar Blattella Spp.: Analysis With Polymerase Chain Reaction-Restriction Fragment Length Polymorphism Of Mitochondrial Dna, Pari Pachamuthu, Shripat T. Kamble, Thomas L. Clark, John E. Foster
Differentiation Of Three Phenotypically Similar Blattella Spp.: Analysis With Polymerase Chain Reaction-Restriction Fragment Length Polymorphism Of Mitochondrial Dna, Pari Pachamuthu, Shripat T. Kamble, Thomas L. Clark, John E. Foster
Department of Entomology: Faculty Publications
Differentiation of Blattella asahinai Mizukubo, Blattella vaga Hebard, and Blattella germanica (L.) was investigated using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). DNA fragments corresponding to mitochondrial CO1,CO1/TL2(small and large fragments), and ITS2 regions were amplified using PCR. The universal primers used for amplifying mitochondrial CO1 and CO1/TL2 (small and large fragments) were CO1-J-1718/CO1- N-2191, CO1-J-2441/TL2-N-3014, and CO1-J-1751/TL2-N-3014. Amplification was observed with all primer combinations, but diagnostic patterns were found only with AluI digested amplicons of CO1 and CO1/TL2 (large fragments) regions. Both inter/intraspecific polymorphism was observed for the 517 bp CO1 region between German (A, B) and Asian …
Salinity And Shade Preferences Result In Ovipositional Differences Between Sympatric Tiger Beetle Species, W. Wyatt Hoback, Douglas A. Golick, Tina Marie Svatos, Stephen M. Spomer, Leon G. Higley
Salinity And Shade Preferences Result In Ovipositional Differences Between Sympatric Tiger Beetle Species, W. Wyatt Hoback, Douglas A. Golick, Tina Marie Svatos, Stephen M. Spomer, Leon G. Higley
Department of Entomology: Faculty Publications
1. Adult tiger beetles of the genus Cicindela often co-occur within a habitat but larvae do not. Larvae are sedentary and form usually permanent burrows at the site of oviposition where they require 1-3 years for development.
2. To test niche partitioning based on ovipositional preference, the behavior of two sympatric salt marsh tiger beetles, Cicindela circumpicta and C. togata (Coleoptera: Cicindelidae), were examined.
3. In laboratory studies, female C. circumpicta and C. togata distinguished between experimental salinities, with the former preferring 4 parts per thousand (ppt) and the latter preferring 12 ppt. In the field, C. circumpicta larvae were …
Digital Human Models For Ergonomics, Jeffrey C. Woldstad
Digital Human Models For Ergonomics, Jeffrey C. Woldstad
Department of Industrial and Management Systems Engineering: Faculty Publications
Digital human models in the context of this section are computer-generated representations of human beings used in computer-aided design (CAD) or similar programs. These models are increasingly being used by ergonomists and other engineers to design both equipment and work environments to meet the needs of human operators. They have the advantage of allowing the designer to explore the potential advantages and disadvantages of different design configurations without requiring the construction of expensive physical mock-ups used in the past.
Using a digital human model, design engineers can position and manipulate operators of varying anthropometry within the simulated work environment. A …
Evidence For Edge Effects On Multiple Levels In Tallgrass Prairie, Maiken Winter, Douglas H. Johnson, John Faaborg
Evidence For Edge Effects On Multiple Levels In Tallgrass Prairie, Maiken Winter, Douglas H. Johnson, John Faaborg
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
We tested how edges affect nest survival and predator distribution in a native tallgrass prairie system in southwestern Missouri using artificial nests, natural nests of Dickcissels (Spiza americana) and Henslow's Sparrows (Ammodramus henslowii), and mammal track stations. Survival of artificial nests was lower within 30 m of forest edge. Nesting success of Dickcissels and Henslow's Sparrows was lower within 50 m to a shrubby edge than at greater distances, whereas fates of nests were not related to distances to roads, agricultural fields, or forests. Evidence from clay eggs placed in artificial nests indicated that mid-sized carnivores …
A Record Large Wolf, Canis Lupus, Pack In Minnesota, L. David Mech
A Record Large Wolf, Canis Lupus, Pack In Minnesota, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
This report documents a pack of 22-23 Wolves (Canis lupus) in central Minnesota. This is larger than the largest pack previously observed on the mainland in the midwestern U.s. during 650 wolf pack-years. Because this record-large pack preyed on White-tailed Deer (Odocoileus virginianus), one of the Wolfs smaller prey, it is evidence that pack size and prey size are not tightly related. It also indicates the size that Wolf packs can attain in the area if fully protected from human persecution.
Lack Of Reproduction In Muskoxen And Arctic Hares Caused By Early Winter?, L. David Mech
Lack Of Reproduction In Muskoxen And Arctic Hares Caused By Early Winter?, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
A lack of young muskoxen (Ovibos moschatus) and arctic hares (Lepus arcticus) in the Eureka area of Ellesmere Island, Northwest Territories (now Nunavut), Canada, was observed during summer 1998, in contrast to most other years since 1986. Evidence of malnourished muskoxen was also found. Early winter weather and a consequent 50% reduction of the 1997 summer replenishment period appeared to be the most likely cause, giving rise to a new hypothesis about conditions that might cause adverse demographic effects in arctic herbivores.
Durant l’été 1998, et ce, à la différence de la plupart des années depuis …
Accuracy And Precision Of Estimating Age Of Gray Wolves By Tooth Wear, Philip S. Gipson, Warren B. Ballard, Ronald M. Nowak, L. David Mech
Accuracy And Precision Of Estimating Age Of Gray Wolves By Tooth Wear, Philip S. Gipson, Warren B. Ballard, Ronald M. Nowak, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
We evaluated the accuracy and precision of tooth wear for aging gray wolves (Canis lupus) from Alaska, Minnesota, and Ontario based on 47 known-age or known-minimum-age skuIIs. Estimates of age using tooth wear and a commercial cementum annuli-aging service were useful for wolves up to 14 years old. The precision of estimates from cementum annuli was greater than estimates from tooth wear, but tooth wear estimates are more applicable in the field. We tended to overestimate age by 1-2 years and occasionaIIy by 3 or 4 years. The commercial service aged young wolves with cementum annuli to within …
Prolonged Winter Undernutrition And The Interpretation Of Urinary Allantoin:Creatinine Ratios In White-Tailed Deer, Glenn D. Delgiudice, Ken D. Kerr, L. David Mech, Ulysses S. Seal
Prolonged Winter Undernutrition And The Interpretation Of Urinary Allantoin:Creatinine Ratios In White-Tailed Deer, Glenn D. Delgiudice, Ken D. Kerr, L. David Mech, Ulysses S. Seal
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
The urinary allantoin:creatinine (A:C) ratio (expressed in micromoles of allantoin to micromoles of creatinine) has shown potential as an index of recent winter energy intake in preliminary controlled studies of elk (Cervus elaphus) involving mild condition deterioration (up to 11% loss of body mass). To ensure reliable nutritional assessments of free-ranging cervids by measuring A:C ratios of urine in snow, it is essential to extend this work. We assessed the effect of moderate and severe winter nutritional restriction on urinary A:C ratios of captive white-tailed deer (Odocoileus virginianus) that lost up to 32% body mass and …
Temporal Flexibility Of Reproduction In Temperate-Breeding Dabbling Ducks, Gary Krapu
Temporal Flexibility Of Reproduction In Temperate-Breeding Dabbling Ducks, Gary Krapu
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
I compared nesting intervals during three consecutive years in five species of temperate-nesting dabbling ducks (Mallard [Anas platyrhynchos], Northern Pintail [Anas acuta], Northern Shoveler [Anas clypeata], Blue-winged Teal [Anas discors], Gadwall [Anas strepera]) and assessed whether differences existed in timing of refractoriness. Most nesting by females of all five species ended by the summer solstice. Nesting ended earliest for Northern Shovelers and Northern Pintails and latest for Gadwalls. Some Mallards, Blue-winged Teal, and Gadwalls continued to nest into mid- and late summer, whereas Northern Shovelers and Northern Pintails did not. …
Habitat Erosion Protection Analysis Missouri National Recreational River Nebraska And South Dakota
Habitat Erosion Protection Analysis Missouri National Recreational River Nebraska And South Dakota
United States Army Corps of Engineers, Omaha District
The Corps was tasked by the National Park Service to detennine if erosion protection measures were needed to prevent further decline in cottonwood forest within the Missouri National Recreational River. The 1990's had three unusually high water years resulting in increased runoff and dam discharges, with resultant increased erosion. Concern about erosion of cottonwood forests was expressed by the public during public meetings held by the National Park Service and the Corps during 1999. Severe erosion was also evident in the comparison of aerial maps from 1985 to those from 1997. Forested habitat is considered a "wildlife value" for the …
Wolf-Bison Interactions In Yellowstone National Park, Douglas Smith, L. David Mech, Mary Meagher, Wendy Clark, Rosemary Jaffe, Michael Phillips, John A. Mack
Wolf-Bison Interactions In Yellowstone National Park, Douglas Smith, L. David Mech, Mary Meagher, Wendy Clark, Rosemary Jaffe, Michael Phillips, John A. Mack
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
We studied interactions of reintroduced wolves (Canis lupus) with bison (Bison bison) in Yellowstone National Park. Only 2 of 41 wolves in this study had been exposed to bison before their translocation. Wolves were more successful killing elk (Cervus elaphus) than bison, and elk were more abundant than bison, so elk were the primary prey of wolves. Except for a lone emaciated bison calf killed by 8 1-year-old wolves 21 days after their release, the 1st documented kill occurred 25 months after wolves were released. Fourteen bison kills were documented from April 1995 through …
Aquatic Dissipation Of The Herbicide Triclopyr In Lake Minnetonka, Minnesota, Kurt D. Getsinger, David G. Petty, John D. Madsen, John G. Skogerboe, Bruce A. Houtman, William T. Haller, Alison M. Fox
Aquatic Dissipation Of The Herbicide Triclopyr In Lake Minnetonka, Minnesota, Kurt D. Getsinger, David G. Petty, John D. Madsen, John G. Skogerboe, Bruce A. Houtman, William T. Haller, Alison M. Fox
United States Army Corps of Engineers, Omaha District
A study of the aquatic fate of the triethylamine salt of triclopyr (3,5,6-trichloro-2- pyridinyloxyacetic acid) was conducted in three bays of Lake Minnetonka, Minnesota. Triclopyr is under review by the US Environmental Protection Agency as a selective aquatic herbicide. The primary purpose of this study was to determine dissipation rates of the parent active ingredient, triclopyr, and its major metabolites, 3,5,6-trichloropyridinol (TCP) and 3,5,6-trichloro-2-methoxypyridine (TMP) in selected matrices including water, sediment, plants, finfish and shellfish. Two 6.5- ha plots dominated by the weedy species Eurasian watermilfoil (Myriophyllum spicatum L) were treated with triclopyr-triethylammonum at a rate of 2.5mg AE liter …
Environmental Ethical Decision Making In The U.S. Metal-Finishing Industry, Brenda L. Flannery, Douglas R. May
Environmental Ethical Decision Making In The U.S. Metal-Finishing Industry, Brenda L. Flannery, Douglas R. May
Department of Management: Faculty Publications
We investigated the individual and contextual influences shaping the environmental ethical decision intentions of a sample of managers in the U.S. metal-finishing industry in this study. Ajzen's (1991) theory of planned behavior and Jones's (1991) moral intensity construct grounded our theoretical framework. Findings revealed that the magnitude of consequences, a dimension of moral intensity, moderated the relation- ships between each of five antecedents-attitudes, subjective norms, and three perceived behavioral control factors (self-efficacy, financial cost, and ethical climate)- and managers' environmental ethical decision intentions. We then developed implications for theory and practice in environmental ethical decision making.
Isovolumic Regulation In Nervous Tissue: A Novel Mechanism Of Cell Volume Regulation, O. Quesada, R. Franco, K. Hernandez-Fonseca, K. Tuz
Isovolumic Regulation In Nervous Tissue: A Novel Mechanism Of Cell Volume Regulation, O. Quesada, R. Franco, K. Hernandez-Fonseca, K. Tuz
School of Veterinary and Biomedical Sciences: Faculty Publications
Cell volume regulation is a property present in most animal cell lineages that allows them to recover their original volume after events of swelling or shrinkage. Such events can be caused by changes in external osmolarity or to osmotic gradients generated during normal cell functioning.4,6 The mechanism of cell volume regulation involves transmembrane fluxes of osmotically active solutes in the necessary direction to counteract the net gain or loss of intracellular water.9 The process through which cells recover their normal volume after swelling is named Regulatory Volume Decrease (RVD). This consists of the efflux of inorganic osmolytes, such as K …
Nest Predation On Black-Tailed Prairie Dog Colonies, Bruce Baker, Thomas R. Stanley, Glenn Plumb
Nest Predation On Black-Tailed Prairie Dog Colonies, Bruce Baker, Thomas R. Stanley, Glenn Plumb
United States Geological Survey: Staff Publications
Nest predation is the principal cause of mortality for many grassland birds. Predation rates may be higher on prairie dog colonies because they may have less available nesting cover and may increase predator abundance. We compared 14-day nest predation rates for 1,764 artificial nests on 102 black-tailed prairie dog (Cynovnys ludovicianus) colonies and their paired off-colony sites (similar habitat lacking prairie dogs) from 14 May to 26 June 1998 in South Dakota and Wyoming. Predation rates on colonies (66.2 ± 2.2%; x ± SE) were 29.5% higher than at off-colony sites (51.1 ± 2.7%). Nesting cover on colonies …