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Articles 285001 - 285030 of 303928

Full-Text Articles in Physical Sciences and Mathematics

Internationales Symposium Über Die Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Michael Stubbe, W. Hilbig, N. Dawaa Jan 1983

Internationales Symposium Über Die Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Michael Stubbe, W. Hilbig, N. Dawaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

First two paragraphs:

Vom 29. 8. b is 2. 9. 1983 organisierte die Sektion Biowissenschaften der Martin-Luther-Universität gemeinsam mit der Biologischen Gesellschaft der DDR in Halle/ Saale die bisher größte internationale wissenschaftliche Konferenz über die Erforschung biologischer Ressourcen der MVR.

166 Biologen, Fachleute anderer Disziplinen der Naturwissenschaften, der Landwirtschaftswissenschaften und Medizi aus der UdSSR (18), CSSR (15), MVR (13), VR olen (3), Frankreich (2) und der DDR (115) nahmen an diesem Symposium teil, um in einem intensiven Erfahrungsaustausch Fragen der Erforschung der biologischen Ressourcen der MVR zu beraten.


Der Erste Nachweis Von Sorex Isodon Turov, 1924 (Mammalia: Insectivora) In Der Mongolei, Namshil Chotolchu Jan 1983

Der Erste Nachweis Von Sorex Isodon Turov, 1924 (Mammalia: Insectivora) In Der Mongolei, Namshil Chotolchu

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

First paragraph:

Das bekannte Areal von Sorex isodon erstreckt sich von Finnland über den europäischen Teil der Sowjetunion, durch Mittel- und Ostsibirien über das Baikalgebiet bis zum Fernen Osten, nach Kamtschatka und den nördlichen Kurilen. Vom Territorium der Mongolischen Volksrepublik war die Art bischer nicht nachgewiesen (BANNIKOV 1954, DULAMCEREN 1970).


Beitrag Zur Ökologie Und Morphologie Von Ovis Ammon L. 1758 In Der Mvr, N. Dawaa, Ch. Suchbat, Michael Stubbe Jan 1983

Beitrag Zur Ökologie Und Morphologie Von Ovis Ammon L. 1758 In Der Mvr, N. Dawaa, Ch. Suchbat, Michael Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In dеп Jahгen 1971 und 1974 bis 1977 wurden einige Daten zum Sozialverhalten von Ovis ammon im Mongolischen und Gobi-Altai in der Mongolischen Volksгepublik zusammengetгagen. Die Rudelgrößen und -zusammensetzungen sind saisonal be­ dingt. Beobachtungen zur ciгcadianen und ciгcannualen Aktivität sowie zu inteгspezifischen Kontakten von Wild- und Haustieгen weгden aufsummiert. Die jährliche Zuwachsrate liegt im Mongolischen Altai erhebich unter jener im Gobi-Altai . Diese Erkenntnis sowie zu eraгbeitende Analysen zur Altersstгuktur und natiürlichen Mortalität stellen Gruпdparameter zuг wirtschaftlichen Nutzung der Wildschafbestände dar. Morphologische Daten von 5 Widdern aus dem Gobi-Altai kennzeichnen das Hornwachstum in dieser Region.

Russian abstract:

Заключение

В 1971 …


Stand Und Aufgaben Der Erforschung Der Eintagsfliegenfauna (Insecta, Ephemeroptera) In Der Mongolischen Volksrepublik, D. Braasch Jan 1983

Stand Und Aufgaben Der Erforschung Der Eintagsfliegenfauna (Insecta, Ephemeroptera) In Der Mongolischen Volksrepublik, D. Braasch

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Der gegenwärtige Stand der Erforschung der mongolischen Ephemeropterenfauna wird dargelegt. Für die MVR können 54 Arten belegt werden. Die Eintagsfliegen des Landes entstammen verschiedenen Gruppen und Faunenelementen: holarktische, eurosibirische, mongolische und mandschuro-japanische.


Entwicklung Und Stand Der Geobotanischen Forschung Über Die Mongolische Volksrepublik, W. Hilbig, B. M. Mirkin Jan 1983

Entwicklung Und Stand Der Geobotanischen Forschung Über Die Mongolische Volksrepublik, W. Hilbig, B. M. Mirkin

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In vor liegendem Beitrag wird die Entwick lung der geobotanischen Forschung über das Gebiet der Mongolischen Volksrepublik dargestellt. Ausgehend von ersten eigen­ ständigen geobotanischen Forschungen sowjetischer Botaniker auf Expeditionen durch die Mongolei in den 20er und 30er Jahren, wurde die pflanzengeograph isch-vegeta­ tionskundliche Erkundung der Mongolei auf sowjetisch-mongolischen Exped itionen der 40er und 50er Jahre weitergeführt. Die besonderen Verd'.enste von A. A JUNA­ TOV und E. M. LAVRENKO an der Entwicklung der geobotanischen Forschung in der Mongolei werden hervorgehoben. JUNATOV war auch besonders an der Heran­ bildung mongolischer Geobotaniker beteiligt. Einen besond eren Schwerpunkt der geobotanischen Forschung in der Mongolischen …


Abriß Der Erforschungsgeschichte Der Avifauna Mongolica, R. Piechocki Jan 1983

Abriß Der Erforschungsgeschichte Der Avifauna Mongolica, R. Piechocki

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Die erste Periode der Erforschung der Avifauna mongolica umfaßt den Zeitraum von 1871 bis 1931. Nach den zentralasiatischen Expeditionen von N. M. PRZEVALSKIJ brachten dieser und danach F. D. PLESKE und W. L. BIANCHI die ersten ornithologischen Beiträge heraus. Im Auftrage der Russischen Geographischen Gesellschaft leitete G. N. POTANIN eine Expedition durch die Nordwest-Mongolei. Weitere Expeditionen führte P. K. KOZLOV durch; die ornithologische Ausbeute wurde von W. L. BIANCHI bearbeitet. Um die Jahrhundertwende setzt die Erforschung der Nordmongolei ein durch W. S. MOLLESON, 0. BAMBERG und F. SCHILLING. Die ornithologische Erschließung der Nordwest-Mongolei ist P. P. SUSHKIN und A. J. …


Ubersicht Der Ergebnisse Der Ungarischen Zoologischen Expeditionen In Der Mongolischen Volksrepublik 1963-1968, Zoltan Kaszab Jan 1983

Ubersicht Der Ergebnisse Der Ungarischen Zoologischen Expeditionen In Der Mongolischen Volksrepublik 1963-1968, Zoltan Kaszab

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Die Fauna der Mongolischen Volksrepublik war bis zu den 60er Jahren unseres Jahrhunderts fast unbekannt geblieben. Eine Ausnahme ist die Wirbeltierfauna, welche vor allem von russischen Zoologen gründlich erforscht und deren Resultate publiziert wurden. Dagegen hatten wir von den Wirbellosen nur spärliche Angaben in der Literatur, welche teils auf der Sammeltätigkeit russischer Forscher beruhen. Von ungarischer Seite war nur eine Expedition an der Jahrhundertwende (1898) von dem Grafen Eugen ZICHY durchgeführt worden, und während der kurzen Durchreise (3. bis 15. September) in der Mongolei hat sein Begleiter E. CSIKI, damaliger Kustos der Zoologischen Abteilung des Ungarischen Nationalmuseums, ein abwechslungsreiches zoologisches …


Recognition Of Student Input In Computer-Assisted Language Learning, Carol Chapelle, Joan Jamieson Jan 1983

Recognition Of Student Input In Computer-Assisted Language Learning, Carol Chapelle, Joan Jamieson

Carol Chapelle

Computerized instruction has captured the interest of many educators as a means of individualizing language study for their students. The quality of this individualization is maximally dependent on the degree to which a computer can understand what the student communicates to it usually by typing a message on the keyboard. This article provides an overview of this student communication, or input: its types, its recognition, and some uses of its recognition. A general understanding of the potential of student-computer interaction will enlighten those who are examining Computer Assisted Language Learning (CALL) lessons for use in their curriculum. Some of this …


The Influence Of Lake Powell On The Suspended Sediment-Phosphorus Dynamics Of The Colorado River Inflow To Lake Mead, T. D. Evans, Larry J. Paulson Jan 1983

The Influence Of Lake Powell On The Suspended Sediment-Phosphorus Dynamics Of The Colorado River Inflow To Lake Mead, T. D. Evans, Larry J. Paulson

Publications (WR)

The Colorado River has been successively modified by the construction of several reservoirs, beginning in 1935 with the formation of Lake Mead by Hoover Dam. These reservoirs are located in a chain, and each one has an influence on the nutrient dynamics and productivity of the river and downstream reservoir. Lake Mead derives 98% of its annual inflow from the Colorado River. Historically, the Colorado River inflow was unregulated into Lake Mead. Regulation occurred in 1963, when Lake Powell was impounded by the construction of Glen Canyon Dam, approximately 450 km upstream. The formation of Lake Powell drastically altered the …


Audio Magazine: Proposed Series Chapter 07 - The Delay Plane And Time Delay Distortion, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 07 - The Delay Plane And Time Delay Distortion, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 7 discusses circuit theory and the Delay Plane.


Audio Magazine: Proposed Series Chapter 03 - Energy, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 03 - Energy, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 3 discusses the partitions of energy to show that the prediction of relation is demonstrable.


Audio Magazine: Proposed Series Chapter 01 - Tds, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 01 - Tds, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 1 introduces Heyser's logic for attempting to find a way to measure the subjective perception of sound.


Audio Magazine: Proposed Series Chapter 05, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 05, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 5 considers the predictions of the new paradigm and discusses the the abilities for operators to commute.


Audio Magazine: Proposed Series Chapter 06 - Measurement And Listening, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 06 - Measurement And Listening, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 6 demonstrates the second prediction of the new paradigm.


Audio Magazine: Proposed Series Chapter 11 - Conclusion, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 11 - Conclusion, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 11 concludes the series and summaries the purpose of this study.


Alternatives In Quantum Theory, Richard C. Heyser Jan 1983

Alternatives In Quantum Theory, Richard C. Heyser

Unpublished Writings

Quantum mechanical descriptions in terms of momentum and position are identified as alternatives under the condition of equal complex-vaulted Lebesgue square integrability. While this does not change any of the formal results obtained in quantum mechanics, it does shed a different interpretive light on the steps that lead up to these results. Instead of being independent, even in concept, momentum and position are identified as being the same thing, merely seen from different views. Neither is required to complement the descriptive capability of the other, since each forms a complete alternative in its own right. Apparent complementarity, as well as …


Audio Magazine: Proposed Series Chapter 09 - Geometry, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 09 - Geometry, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 9 discusses the geometric measuring of sound and the existence of a sound image.


Audio Magazine: Proposed Series Chapter 08 - Stereo Reproduction, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 08 - Stereo Reproduction, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 8 discusses the perceptions of sound through monaural and stereo reproduction.


Audio Magazine: Proposed Series Chapter 02 - Measurement And Listening, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 02 - Measurement And Listening, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 2 discusses the new paradigm, "Principle of Alternatives."


Audio Magazine: Proposed Series Chapter 10 - Analogies, Richard C. Heyser Jan 1983

Audio Magazine: Proposed Series Chapter 10 - Analogies, Richard C. Heyser

Unpublished Writings

Richard C. Heyser prepared this chapter as part of a series originally intended for AUDIO magazine in an effort to find an objective way of dealing with the subjective perception of sound. Through the implementation of the time delay spectrometry (TDS) method, Heyser was able to explore the mathematical analysis of audio and the philosophical principles of audio measurement. Chapter 10 discusses the philosophy and theory behind audio concepts to explain the purposes behind this study.


Xanes In (Tmtsef)2re04: Polarization Dependence Of The Se K-Edge, Juana Vivó Acrivos, S.S. P. Parkin Jan 1983

Xanes In (Tmtsef)2re04: Polarization Dependence Of The Se K-Edge, Juana Vivó Acrivos, S.S. P. Parkin

Faculty Publications, Chemistry

We have measured XANES (X-ray Absorption Near Edge Spectra) near the Re Li (i=l,II,III) edges in (TMTTF)2Re04 and (TMTSeF) 2Re04 and the Se K edge in the latter compound. An important dependence of the XANES at the Se K edge on the polarisation of the incident beam with respect to the crystal axes was observed, whose interpretation can give information on the symmetry of the unoccupied conduction band states. The positions of the Re L edges were compared with those in several inorganic compounds containing Re in various oxidation states, and were found to be, within experimental error, the same …


Sources Of Nosocomial Infections In Immunocompromised Patients (Letter), B. Burt Gerstman Jan 1983

Sources Of Nosocomial Infections In Immunocompromised Patients (Letter), B. Burt Gerstman

Faculty Publications

No abstract provided.


The Least Fixed Point Property For Ω-Chain Continuous Functions, Joe Mashburn Jan 1983

The Least Fixed Point Property For Ω-Chain Continuous Functions, Joe Mashburn

Mathematics Faculty Publications

A partially ordered set P is ω-chain complete if every countable chain (including the empty set) in P has a supremum. … Notice that an ω-chain continuous function must preserve order. P has the (least) fixed point property for ω-chain continuous functions if every ω-chain continuous function from P to itself has (least) fixed point.

It has been shown that a partially ordered set does not have to be ω-chain complete to have the least fixed point property for ω-chain continuous functions. This answers a question posed by G. Plotkin in 1978. I.I. Kolodner has shown that an ω-chain complete …


Identification And Characterization Of Three Glacial Tills In Kandiyohi County, Minnesota, Allan G. Giencke, Richard O. Paulson, James R. Crum Jan 1983

Identification And Characterization Of Three Glacial Tills In Kandiyohi County, Minnesota, Allan G. Giencke, Richard O. Paulson, James R. Crum

Journal of the Minnesota Academy of Science

During the course of the Kandiyohi Co., Minnesota, soil survey, three different glacial tills were recognized and separated from what was formerly thought to be one homogeneous glacial till. Tile first glacial till is from the Des Moines Lobe ice advance. It has a fine-loamy particle size, friable consistency, and appreciable amounts of Cretaceous shale fragments. The oven-dry bulk density ranges from 1.3 to 1.5 glee. The second glacial till is from the Wadena Lobe ice advance. It has a coarse-loamy particle size, friable consistency, oven-dry bulk density of 1.5 to 1.7 glee, and small amounts of Cretaceous shale fragments. …


A Progress Report Of The Cedar Creek Natural History Area, David F. Parmelee Jan 1983

A Progress Report Of The Cedar Creek Natural History Area, David F. Parmelee

Journal of the Minnesota Academy of Science

No abstract provided.


Sixty-Day Temperature Persistence At Five-Day Intervals For Minneapolis-St. Paul, Charles J. Fisk Jan 1983

Sixty-Day Temperature Persistence At Five-Day Intervals For Minneapolis-St. Paul, Charles J. Fisk

Journal of the Minnesota Academy of Science

The annual course of 60-day temperature persistence for Minneapolis-St. Paul, Minnesota is examined at five -clay intervals for the last 110 years. Results show maximum persistence for the 60-day periods February 20 to April 20 and June 25 to August 23. Minimum persistence is observed for sequences whose midpoints correspond to late April, late September and mid-November. This suggests the presence of a single favored regime-breaking period for the winter to summer transition and two such periods for summer to winter.


Drainage Basin Characteristics Of The Minnesota River, Paul Fasching Jan 1983

Drainage Basin Characteristics Of The Minnesota River, Paul Fasching

Journal of the Minnesota Academy of Science

The geomorphology of the Minnesota River Basin is poorly understood, yet much of modern fluvial ecology requires this information as a prerequisite to physical, chemical, or biological studies. The purpose of this paper is to provide background descriptive geomorphological river basin data for the Minnesota River. Eleven descriptive parameters (river gradient, Form f, Shape 1, Shape 2, circularity ratio, elongation ration, stream order, bifurcation ratio, average area by order, number of lakes per order and number of lower order streams entering higher streams) were determined for the Minnesota River Basin as a whole as well as for ten subbasins. A …


Land Use For Timber And Recreation: A Case Study In Victoria, Australia, Lawrence C. Merriam Jan 1983

Land Use For Timber And Recreation: A Case Study In Victoria, Australia, Lawrence C. Merriam

Journal of the Minnesota Academy of Science

For many years the United States has had major problems in public land use for timber and recreation. Problems in Minnesota's Boundary Waters Canoe Area are an example. Australia is a country with Simi !tar concerns. The State Forests of Central Victoria, administered by the Forests Commission, were heavily burned m 1939. They now have regenerated to commercially mature stands, particularly of mountain ash (Eucalyptus regnans F. Muell.). Within 100 kilometers of the 3 million people in Melbourne, the forests are popular recreation sites. This paper reports on a study made for the Forests Commission aimed at the effective integration …


Seam Wave Characteristics In An Eastern U.S. Coal, Paul J. Wolfe, Timothy G. Holdeman, Benjamin H. Richard Jan 1983

Seam Wave Characteristics In An Eastern U.S. Coal, Paul J. Wolfe, Timothy G. Holdeman, Benjamin H. Richard

Physics Faculty Publications

No abstract provided.


Mm Herculis: An Eclipsing Binary Of The Rs Cvn Type, James R. Sowell, Douglas S. Hall, Gregory W. Henry, Edward W. Burke Jr., Eugene F. Milone Jan 1983

Mm Herculis: An Eclipsing Binary Of The Rs Cvn Type, James R. Sowell, Douglas S. Hall, Gregory W. Henry, Edward W. Burke Jr., Eugene F. Milone

Information Systems and Engineering Management Research Publications

Differential photoelectric photometry in V, B, and U has been obtained for the eclipsing binary MM Her, a member of the RS Canum Venaticorum class. The light outside eclipse was Fourier-analyzed to study the wave. The migration and amplitude of the wave and the mean light level of the system now have been monitored from 1976 through 1980. The phase of wave minimum has decreased from 0P.80 to 0P.25, the wave amplitude has varied between 0m.06 and 0m.12, and the mean light level has fluctuated between 0.94 and 0.99. Observations …