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Articles 23251 - 23280 of 24566
Full-Text Articles in Physical Sciences and Mathematics
Pioneers Of Modern Geography: Translations Pertaining To German Geographers Of The Late Nineteenth And Early Twentieth Centuries, Robert C. West
Pioneers Of Modern Geography: Translations Pertaining To German Geographers Of The Late Nineteenth And Early Twentieth Centuries, Robert C. West
GreyZone
This collection of English translations samples the writings and/or critiques thereon of six important German geographers of the late nineteenth and early twentieth centuries: those of August Meitzen, Eduard Hahn, Otto Schliiter, Alfred Hettner, Siegfried Passarge, and Karl Sapper. Each of these scholars influenced in various ways the course of modem geographical thinking and instruction in German universities, and their methodologies were also adopted in part by professional geographers in other European countries and in the United States. Four of them—Hahn, Schliiter, Hettner and Passarge— were students of Ferdinand von Richthofen, often considered the “father” of professional geography in Germany. …
Pflanzengesellchaften Der Mongolei, Werner Hilbig
Pflanzengesellchaften Der Mongolei, Werner Hilbig
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
First paragraphs of the introduction:
In Fortführung der Forschungsreisen der russischen Floristen und Pflanzengeouraphen im vorigen und Anfang dieses Jahrhunderts wurden erste Expeditionen zur systematischen Erforschung der Naturressourcen der Mongolei in den 20er und 30er Jahren durchgeführt. Sie wurden von der Akademie der Wissenschaften der UdSSR und der Akademie der Wissenschaften der MVR (vorher Wissenschaftliches Komitee der MVR) organisiert. Auch die von der Geographischen GeselIschaft und der Akademie der Wissenschaften der UdSSR durchgeführten Expeditionen zur Erforschung der natürlichen Bedingungen und der Landwirtschaft in der Mongolei schufen Möglichkeiten zur Entwicklung der geobotanischen Forschungsrichtung (vgl. GUBANOV u. HILBIG 1989).
Als erste eigenständi"e …
Title Page, Verso Of The Title Page, And Contents For Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Band 8, Michael Stubbe
Title Page, Verso Of The Title Page, And Contents For Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Band 8, Michael Stubbe
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Title page, verso of the title page, and contents of Erforschung biologischer Ressourcen der Mongolischen Volksrepublik, Band 8 (1990).
Cirrhosis In The Trauma Victim --- Effect On Mortality-Rates, Glen Tinkoff, Michael Rhodes, Daniel Diamond, Joseph F. Lucke
Cirrhosis In The Trauma Victim --- Effect On Mortality-Rates, Glen Tinkoff, Michael Rhodes, Daniel Diamond, Joseph F. Lucke
Joseph Lucke
To evaluate the impact cirrhosis has on survival the records of 40 cirrhotic trauma victims from the registries of two Level 1 trauma centers were reviewed and probability of survival calculated using the TRISS methodology. Mechanism of injury, anatomic location, involvement of single or multiple sites, presence of ascites, elevations in serum glutamic oxaloacetic transaminase (SGOT), alkaline phosphatase, serum bilirubin, prothrombin time (PT), and hypoalbuminemia were tabulated for each patient. Contingency tables were created for injury and hepatic parameters, as related to survival, and subjected to chi square analysis. Loglinear analysis was performed on all significant parameters to evaluate the …
Positive Residues Involved In The Voltage-Gating Of The Mitochondrial Porin-Channel Are Localized In The External Moiety Of The Pore, Philadelphia University
Positive Residues Involved In The Voltage-Gating Of The Mitochondrial Porin-Channel Are Localized In The External Moiety Of The Pore, Philadelphia University
Philadelphia University, Jordan
No abstract provided.
Have You Hugged Your Computer Today?, David Morgan Lochhead
Have You Hugged Your Computer Today?, David Morgan Lochhead
Dr. David Morgan Lochhead
"I have owned a computer for over ten years now. When the computer came into my life, it turned it upside down. I was excited. I would spend every moment that I could with my computer. The most exciting thing that could happen to me would be for a new piece of software to come along. I lavished my computer with new programs. "
Uncertainty, Politics, And Outer Continental Shelf Development, Robert B. Wiygul, University Of Colorado Boulder. Natural Resources Law Center
Uncertainty, Politics, And Outer Continental Shelf Development, Robert B. Wiygul, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
15 p. ; 28 cm
Hawaii's Rainforest Crunch: Land, People, And Geothermal Development, Paul Faulstich
Hawaii's Rainforest Crunch: Land, People, And Geothermal Development, Paul Faulstich
Pitzer Faculty Publications and Research
One hundred and forty-one people, led by Native Hawaiians, were arrested on 25 March 1990 as part of the largest demonstration yet against geothermal development in Hawaii. The gathering was intended to focus attention on Native Hawaiian rights and the ecological consequences of drilling geothermal wells in the near-pristine Wao Kele O Puna rain forest. The energy project, undertaken by True Geothermal Company and endorsed by Hawaii's governor and other imposing figures, has already invaded the largest intact tropical lowland rain forest in the United States.
Ua66/3/3 Journal Of The A. C. M., Wku Association For Computing Machinery
Ua66/3/3 Journal Of The A. C. M., Wku Association For Computing Machinery
Student Organizations
Journal created by and about the WKU Association for Computing Machinery a student organization sponsored by WKU Computer Science.
Santa Clara Magazine, Volume 32 Number 2, Winter 1990, Santa Clara University
Santa Clara Magazine, Volume 32 Number 2, Winter 1990, Santa Clara University
Santa Clara Magazine
12 - WHO TAKES CARE OF THE KIDS Day care is one of the major issues society will be forced to grapple with in the 1990s. By Susan Frey
17 - THE GENERAL PAYS A VISIT The superior general of the Jesuit order makes a rare visit to Santa Clara and addresses the SCU and Bellarmine communities. By Peter-Hans Kolvenbach, S.J.
22 - PASSPORT TO FRIENDSHIP A Nome, Alaska Cub Scout troop makes the ultimate field trip, an exchange visit with the Young Pioneers in Provideniya, Russia. By Claire Murphy
26 - WHO, ME? Hazelden is considered the nation's premier …
The Mating Systems And Pollination Biology Of Three Species Of Verbena (Verbenaceae), Robert W. Cruden, Kristina K. Baker, Thomas E. Cullinan, Karen A. Disbrow, Kelly L. Douglas, John D. Erb, Kenneth J. Kirsten, Mary L. Malik, Elizabeth A. Turner, Jonathon A. Weier, Sherry R. Wilmot
The Mating Systems And Pollination Biology Of Three Species Of Verbena (Verbenaceae), Robert W. Cruden, Kristina K. Baker, Thomas E. Cullinan, Karen A. Disbrow, Kelly L. Douglas, John D. Erb, Kenneth J. Kirsten, Mary L. Malik, Elizabeth A. Turner, Jonathon A. Weier, Sherry R. Wilmot
Journal of the Iowa Academy of Science: JIAS
Because their flowers can be cross- and/or self-pollinated Verbena stricta, V hastata and V urticifolia are facultatively xenogamous. We suggest the flowers can be cross-pollinated because I) the fruit set of caged plants was substantially lower than that of open-pollinated plants, i.e. pollinators were necessary for typical fruit set and 2) the flowers of each species attracted a diverse array of hymenopteran, dipteran and lepidopteran pollinators that were capable of moving pollen between plants. Self-pollination was low due to the spatial separation of anthers and stigmas and/or an angled corolla that decreased the likelihood of pollen dropping from the anthers …
Eighty Years Of Research At Iowa Lakeside Laboratory: A Bibliography, Debby Zieglowsky Baker
Eighty Years Of Research At Iowa Lakeside Laboratory: A Bibliography, Debby Zieglowsky Baker
Journal of the Iowa Academy of Science: JIAS
Over 400 scientific reports and theses have resulted from work conducted at Iowa Lakeside Laboratory since it was founded in 1909. This bibliography updates Ulmer's 1962 bibliography and gathers some of the hundreds of theses written by students at the Lab.
Atmospheric Response To 1988 Drought Conditions And Future Climate Implications, Michael D. Mccorcle
Atmospheric Response To 1988 Drought Conditions And Future Climate Implications, Michael D. Mccorcle
Journal of the Iowa Academy of Science: JIAS
Plentiful precipitation in the central United States is one of the basic components of the successful agricultural industry in the Corn Belt. A combination of moisture, wind, and topographic factors creates an ideal condition for rainfall over most of the region during the late spring and early summer. In 1988, many ingredients necessary for wet weather were absent. The region experienced a drought unequalled since the 1930's. The drought of 1988 demonstrated chat the symptom of drought, namely, dry soils, can exacerbate and even perpetuate drought conditions by decreasing available moisture, altering circulation patterns vital to storm development, and increasing …
Impact Of Global Warming And Cooling On Midwestern Agriculture, Louis M. Thompson
Impact Of Global Warming And Cooling On Midwestern Agriculture, Louis M. Thompson
Journal of the Iowa Academy of Science: JIAS
The global warming since 1980 has been greater than it was during the warming trend from 1880 to 1940. This has caused concern that the very warm years of 1987 and 1988 might have been associated with greenhouse warming. However, the cooling trend from 1940 to 1980 occurred during a rapid buildup in greenhouse gases in the atmosphere. Although there may have been some greenhouse warming since 1880, the unusual warmth of 1987 and 1988 may have been caused by changes in the temperature of the equatorial Pacific Ocean, and changes in transparency of the atmosphere or ocher phenomena acting …
Population Estimates And Geographic Distribution Of The Yellow Mud Turtle (Kinosternon Flavescens) In Iowa, James L. Christiansen, Benny J. Gallaway, John W. Bickham
Population Estimates And Geographic Distribution Of The Yellow Mud Turtle (Kinosternon Flavescens) In Iowa, James L. Christiansen, Benny J. Gallaway, John W. Bickham
Journal of the Iowa Academy of Science: JIAS
The yellow mud turtle (Kinosternon flavescens) is an endangered species in Iowa known from six localities in the stare. The only large population is located on a private preserve on Big Sand Mound in Muscatine and Louisa Countries and is estimated to consist of 2,000 to 3,000 individuals. Following the removal of predators in 1979, density estimates have tripled as estimated by the Sequential Bayes Algorithm of mark-recapture data. Assuming the Big Sand Mound population was nor severely damaged by the drought of 1988, it is judged sufficiently large to serve as a source to enrich certain of Iowa's other …
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.
Engineering Proteinase Inihibitor Genes For Plant Defense Against Predators, Clarence A. Ryan, Thomas Moloshok, Gregory Pearce, Gynhueng An, Robert W. Thornburg, Gerald Hall, Russell Johnson, Edward E. Farmer, Curtis Palm
Engineering Proteinase Inihibitor Genes For Plant Defense Against Predators, Clarence A. Ryan, Thomas Moloshok, Gregory Pearce, Gynhueng An, Robert W. Thornburg, Gerald Hall, Russell Johnson, Edward E. Farmer, Curtis Palm
Journal of the Iowa Academy of Science: JIAS
Small proteinaceous inhibitors (Mr<20,000) of the digestive serine proteinases of animals and microorganisms are found as moderately abundant proteins in storage organs and leaves of many plant genera. The proteins are powerful inhibitors of the digestive enzymes of plant predators and therefore are considered to be part of the array of defensive chemicals of plants. Proteinase inhibitor genes show excellent promise, using DNA technology, to manipulate plant genomes to express these biologically active proteins in order to improve natural defense systems. Members of two unrelated families of serine proteinase inhibitors found in tomato and potato plants, called Inhibitor I (monomer Mr 8000) and Inhibitor II (monomer Mr 12,300), are under both environmental and developmental regulation in different tissues of the plants. Genes coding for wound-inducible Inhibitors I and II have been isolated from both tomato and potato genomes and characterized. Tobacco plants have been transformed with the chimeric genes containing wound-inducible promoters fused with the reporter gene, chloramphenicol acetyl transferase, to assess promoter function and signal transmission. Transacting factors that regulate their expression in response to wounding are also being identified and purified. Intact genes are being employed to transform agriculturally important crop plants to determine their potential usefulness to enhance defensive capabilities of plants against herbivores and pathogens.
Final Report : [Land Settlement Review], Della E. Mcmillan, Thomas M. Painter, Thayer Scudder, Institute For Development Anthropology (Binghamton, N.Y.)
Final Report : [Land Settlement Review], Della E. Mcmillan, Thomas M. Painter, Thayer Scudder, Institute For Development Anthropology (Binghamton, N.Y.)
Institute for Development Anthropology Papers
No abstract provided.
La Conservation Des Forêts Au Népal: Encourager La Participation Des Femmes, Augusta Molnar
La Conservation Des Forêts Au Népal: Encourager La Participation Des Femmes, Augusta Molnar
Poverty, Gender, and Youth
Ce numéro de SEEDS porte sur les moyens mis en oeuvre pour faire participer les femmes à un programme gouvernemental visant à preserver et à restituer la forêt au Népal. Comme il arrive fréquemment lors de la mise en place de projets aussi vastes ayant une portée generale, les femmes n'étaient pas un centre d'intérêt spécifique au moment de la conception du projet. Cependant, lorsque les activités ont demarré, les responsables népalais du projet et leurs collègues de l'étranger se sont tres vite rendus compte que le succès du programme dépendait de la participation directe des femmes aux activités du …
The Planet, 1990, Winter, Sara Olason, Associated Students Environmental Center, Western Washington University
The Planet, 1990, Winter, Sara Olason, Associated Students Environmental Center, Western Washington University
The Planet
No abstract provided.
Climate Trends In Iowa, Richard E. Carlson
Climate Trends In Iowa, Richard E. Carlson
Journal of the Iowa Academy of Science: JIAS
Long-term trends for various weather elements are presented for the period 1900-1988. Summer and winter season, and annual air temperature patterns are statistically weak because of large inrerannual variability, but trends are evident. There was a general warming from 1900 until the 40's, with a leveling or slight cooling following. Since the mid-70's, a warming trend seems to be taking place, but this cannot be confirmed. Spring season air temperatures showed no trend except that the most recent 4 years (1985-1988) were decidedly warmer than normal. Winter season air temperatures showed a change in trend in the 30's, but the …
Computed Normal Range Of Iowa Statewide July Precipitation, H. C. Vaughan, D. S. Sheets, G. R. White
Computed Normal Range Of Iowa Statewide July Precipitation, H. C. Vaughan, D. S. Sheets, G. R. White
Journal of the Iowa Academy of Science: JIAS
Iowa summer rainfall distributions are examined to identify small-scale anomalies. Examination of extremely wet and dry summer months shows that large rain amounts fall mainly in small, cellular areas for both extremely wet and dry months. These configurations result from individual rainfall events. Analysis of the distribution of mean July rainfall across the state reveals significant anomalous wet and dry regions that contrast with the background, east-west rainfall gradient. Because of the skewed nature of summer rainfall distributions, the median value is used to represent a more realistic expected rainfall amount for any given year. Some parts of the stare …
Cover And Front Matter, Volume One, Number One, Winter 1990, Risk Editorial Board
Cover And Front Matter, Volume One, Number One, Winter 1990, Risk Editorial Board
RISK: Health, Safety & Environment (1990-2002)
Cover image and print journal front matter for the inactive journal Risk including masthead, publication information, manuscript guidelines, and other prefatory matter.
Introduction, Thomas G. Field Jr.
Introduction, Thomas G. Field Jr.
RISK: Health, Safety & Environment (1990-2002)
[Excerpt] "This is a double welcome: first, to a new interdisciplinary quarterly, and, second, to the first two issues. Taking them in reverse order, this and the next issue consist primarily of papers presented at a [very well received] conference entitled Public Participation in Risk Management: Ethics, Science & Law which was held in Concord about a year ago - with financial assistance from the New Hampshire Humanities Council and the Administrative Conference of the United States."
Radon Measurements In Houses In Eastern And Central Iowa, C. V. Weiffenbach, T. J. Hart
Radon Measurements In Houses In Eastern And Central Iowa, C. V. Weiffenbach, T. J. Hart
Journal of the Iowa Academy of Science: JIAS
Radon concentrations in air in main floor areas of 213 houses in Central and Eastern Iowa were measured with alpha track detectors integrating over periods of five months to one year. Forty-two houses in Central Iowa had significantly higher radon concentrations (lognormal distribution with geometric mean 2.1 pCi/L, geometric standard deviation 2.2, and arithmetic mean 2.75 pCi/L) than 171 houses studied in Eastern Iowa (geometric mean 1.6 pCi/L, geometric standard deviation 2.2, arithmetic mean 2.1 pCi/L). Significant differences in radon levels were found among different categories of houses with regard to ventilation rate, basement construction, and cracks and openings in …
Bibliography Of The Natural And Cultural History Of The Loess Hills Of Iowa, Dean M. Roosa, Darwin D. Koenig
Bibliography Of The Natural And Cultural History Of The Loess Hills Of Iowa, Dean M. Roosa, Darwin D. Koenig
Journal of the Iowa Academy of Science: JIAS
A bibliography of literature on Iowa's Loess Hills includes references containing information on the cultural or natural history of chis western Iowa landform region. The bibliography is divided into six parts: general, archaeological, botanical, geological, historical, and zoological. Annotations are included only where necessary to clarify contents. Because of their rugged topography, the Loess Hills of western Iowa have resisted large-scale conversion to agriculture. This has permitted noteworthy persistence of native prairies and woodlands, along with their associated species. This bibliography complements two special issues of the Proceedings of the Iowa Academy of Science devoted to Iowa's Loess Hills.