Physical Sciences and Mathematics Commons^™

Stability And Asymptotic Equivalence Of Perturbations Of Nonlinear Systems Of Differential Equations, M. E. Lord

Mathematics Technical Papers

A nonlinear variation of constants method was introduced by Alekseev [1] and applications of this formula to questions of stability and asymptotic equivalence of differential systems was demonstrated by Brauer [2,3,4]. In [6] a different approach to the nonlinear variation of constants method is given. This new approach involves determining the solution of the perturbed system by variation of the starting vector in the unperturbed system. Conceptually this is the method used in obtaining the classical variation of constants formula for perturbations of linear systems. In [6] the method yields two different formulas, one of which is equivalent to the …

Numerical Studies Of Double-Layer Circularization And Gastrulation, Donald Greenspan

Mathematics Technical Papers

In this paper, certain types of biological cell rearrangements are modeled from a computer point of view. All forces are of a local nature and are patterned on classical atomic and molecular interactions. It is first shown how to induce a double-layered flat tissue to fold into a double-layered circular tissue. Then, it is shown how to induce a section of the circular tissue to pull inward, or gastrulate.

Existence And Asymptotic Behavior Of Reaction-Diffusion Systems Via Coupled Quasi-Solutions, G. S. Ladde, A. S. Vatsala, V. Lakshmikantham

Mathematics Technical Papers

In the study of comparison theorems, existence of extremal solutions and monotone iterative techniques for differential systems a property called quasimonotone property is necessary [2,7,10]. However, there are several physical situations wherein such a property is not satisfied [1]. This difficulty has been overcome by introducing the notion of quasi-solutions [3,8,9]. In this paper we consider the reaction-diffusion system in which quasi-monotone property is not satisfied but a mixed quasimonotone property holds. By utilizing fruitfully the notion of quasi-solutions we prove the existence of coupled maximal and minimal solutions. For this purpose we exploit the monotone iterative technique. We then …

The Effect Of Natural Measures To Aid In Sleep As Compared With The Use Of Flurazepam 30 Milligrams As Seen In The Hospitalized Male Patient, Myra Ladd Thompson

Loma Linda University Electronic Theses, Dissertations & Projects

Sleep is necessary for physical and psychological restoration of the body. Studies indicate that tissue repair is augmented during sleep, showing that rates of protein synthesis and of mitotic division are higher at times of rest and sleep. Studies evaluating sleep-deprived subjects reveal that after loss of normal sleep, some types of memory and learning processes are impaired. These subjects generally become anxious and irritable, especially after loss of dreaming sleep.

Sleeping medications have been implicated by observers and researchers to be a cause of altered sleep patterns. These medications not only disrupt normal sleep cycles, but their continued use …

“Don’T Go Near The Water” (Coal Leasing On Public Lands), Harrison Loesch

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

5 pages.

The Surface Mining Control And Reclamation Act Of 1977, Hamlet J. Barry, Iii

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

48 pages.

Includes footnotes (pages 44 to 47).

Development Of The 1979 Federal Coal Management Program, Leo M. Krulitz

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

4 pages.

The General Mining Act Of 1872, Loren Mall

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

48 pages (includes graph).

The Legal Aspects Of Oil Shale Development [Outline], David E. Brody

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

5 pages.

The Mineral Leasing Act Of 1920, Patrick H. Martin

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

39 pages (includes sample forms).

Pages M-26; M-36; M-38; and M-40 do not contain pagination or content, and were not scanned.

Contains references (page M-1).

Water Rights For Western Mineral Development On Public Lands, A. Dan Tarlock

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

13 pages.

National Environmental Policy Act: Its Substance, Effects, And Relationship To Mineral And Water Resource Development In The West, Robert J. Golten

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

8 pages.

Clean Water Act & Company: Impact On Mining, George W. Pring

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

8 pages.

The Resource Conservation And Recovery Act And Mineral Development, Robert E. Hamel

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

30 pages.

The Clean Air Act And Mineral Development, Paul D. Phillips

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

16 pages (includes charts, maps, and illustrations).

Contains 3 pages of references.

Agenda: Federal Lands, Laws And Policies And The Development Of Natural Resources: A Short Course, University Of Colorado. School Of Law, University Of Colorado Boulder. Natural Resources Law Center

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

Even before the [Natural Resources Law] Center was established [in the fall of 1981], the [University of Colorado] School of Law was organizing annual natural resources law summer short courses. To date four programs have been presented:

- July 1980: "Federal Lands, Laws and Policies and the Development of Natural Resources"

- June 1981: "Water Resources Allocation: Laws and Emerging Issues"

- June 1982: "New Sources of Water for Energy Development and Growth: lnterbasin Transfers"

- June 1983: "Groundwater: Allocation, Development and Pollution"

(Reprinted from Resource Law Notes, no. 1, Jan. 1984, at 1.)

Instructors for this conference included University …

Federal Land Policy Management Act: The Effect And Operation Of The Bureau Of Land Management Organic Act And Regulations Under It Relative To The Use Of Public Lands For Resource Development, Pamela A. Ray

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

15 pages.

National Forest Minerals Management [Outline], Jerry L. Haggard

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

3 pages.

The Public Lands: Development Of Federal Policy, Charles F. Wilkinson

Federal Lands, Laws and Policies and the Development of Natural Resources: A Short Course (Summer Conference, July 28-August 1)

9 pages.

South-Seeking Magnetotactic Bacteria In The Southern Hemisphere, R. P. Blakemore, Richard B. Frankel, Ad. J. Kalmijn

Physics

Several species of aquatic bacteria which orient in the Earth's magnetic field and swim along magnetic field lines in a preferred direction (magnetotaxis) have been observed in marine and freshwater sediments of the Northern Hemisphere^1,2. Their orientation is due to one or more intracytoplasmic chains of single-domain magnetite particles³. These linearly arranged particles impart a net magnetic dipole moment to the bacterium, parallel to the axis of motility. Northern Hemisphere magnetotactic bacteria with unidirectional motility swim consistently in the direction of the magnetic field, that is, to the geomagnetic North^1,2,4. This implies that their …

Theoretical Potential Curves For Excited States Of Arh And The Rate Of Collisional Quenching Of Metastable Ar By H, R.L. Vance, Gordon A. Gallup

Gordon Gallup Publications

Energy curves for the ground state and the first seven excited states of ArH have been calculated using the multiconfiguration valence bond (MCVB) method. Important features of the excited curves include two distinct avoided crossings between the lowest Ar*H and the highest ArH* potential energy curves. Using these curves we have made a theoretical analysis of quenching of metastable Ar by collision with H at room temperature. Application of the Massey criterion indicates that the separation of the potential curves in the region of the crossing and the acceleration produced by the fall of the reactant channel potential curve from …

A Note On The Semantics Of Looping Programs In Propositional Dynamic Logic, Francine Berman

Department of Computer Science Technical Reports

No abstract provided.

Irrigation Scheduling Of Corn Utilizing Infrared Thermometry, Kirk L. Clawson

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

Water Current, Volume 12, No. 4, July/August 1980

Water Current Newsletter

New Director for Water Center
OWRT Five-Year Research Planning Program
Dr. Gary Lewis Resigns
Water Conservation Practices Preserve Finite Water Supply
MRBC Prepares Draft Environmental Impact Statement
Water and Power Resources Service
Water Policy Implementation Report
Changes at WRC
Research Review: Management of Irrigated Agriculture With a Limited Water and Energy Supply

Phase Transition Effects: A Crystallographic Characterization Of The Temperature Dependency Of The Crystal Structure Of The 1:1 Charge Transfer Complex Between Anthracene And Tetracyanobenzene In The Temperature Range 297 To 119 K, John J. Stezowski

John J. Stezowski Publications

Crystal structures of the charge transfer complex between anthracene and tetracyanobenzene, A:TCNB, C₁₄H₁₀: C₁₀H₂N₄, at three temperatures (297, 234 and 226 K) above the order–disorder phase transition at 206 K and at four temperatures (202, 170, 138, and 119 K) below it have been determined from x-ray diffraction data. The space group of the room temperature phase was assigned as Cm with a = 9.528(2), b =12.779(3), c = 7.441(2) Å and β=92.39(2) degrees at 297 K and for the low temperature phase is P21/a with a =9.457(1), …

Tb98: Oxygen Diffusion Rate Relationships Under Three Soil Conditions, J. Bornstein, W. E. Hedstrom, F. R. Scott

Technical Bulletins

The objective of this study was to determine the oxygen diffusion rate (ODR)—soil moisture relationship for three sieved, root-free soils to determine if there are basic ODR-soil characteristic differences that might influence data at different soil water contents in the presence of plant roots. Advanced knowledge of ODR-soil moisture relationships would also help scientists to evaluate the effect of variation in the water table on plant growth.

Effects Of Soil Erosion On Productivity, Wilbur Frye

Soil Science News and Views

About 75 percent of Kentucky's agricultural land is sloping enough that potential erosion losses must be considered in its management. In addition to the effect of soil erosion on water pollution is the question of its effect on the productivity of the soil. This is a complex question due to the interactions of the many factors that affect crop growth. Furthermore, the same degree of erosion has a greater adverse effect on some soils than on others. The kind of erosion that has taken place or is taking place is a major factor in making land use decisions for crop …

Volume 4, Number 7 (July 1980), The Solar Ocean Energy Liaison

The OTEC Liaison

No abstract provided.

Homogeneous Extensions Of C*-Algebras And K-Theory. I, Claude Schochet

Mathematics Faculty Research Publications

No abstract provided.

Secular Fluctuations Of Temperature In The Rocky Mountain States And A Comparison With Precipitation Fluctuations, Raymond S. Bradley

Raymond S Bradley

Fluctuations of temperature in the Rocky Mountain states of Idaho. Montana. Wyoming. Colorado and Utah are analyzed forthe period 1891-1978. Prior to 1891. data forthis area are too sparse to make meaningful generalizations. After screening temperature data for homogeneity. selected records are used to map seasonal mean temperature departures from 1941-70 means. In all seasons. mean temperatures were higher by 1-I.soC during the last 40 years compared to the previous 40-50 years. However. spring and fall temperatures have been declining since the period maximum in the late 1930·s. Pentad mean winter and summer temperatures show a statistically significant temperature increase …