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Articles 36931 - 36960 of 42543
Full-Text Articles in Entire DC Network
Person Earth, George Abbe
How I Put The Horse Before Descartes: An Autobiographical Fragment, Bernard Rollin
How I Put The Horse Before Descartes: An Autobiographical Fragment, Bernard Rollin
Between the Species
No abstract provided.
Mossbauer Spectroscopy Of Iron Biomineralization Products In Magnetotactic Bacteria, Richard B. Frankel, Georgia C. Papaefthymiou, Richard P. Blakemore
Mossbauer Spectroscopy Of Iron Biomineralization Products In Magnetotactic Bacteria, Richard B. Frankel, Georgia C. Papaefthymiou, Richard P. Blakemore
Physics
No abstract provided.
Evaluation Of Micro Irrigation Systems, Charles M. Burt, Robert E. Walker, Stuart W. Styles
Evaluation Of Micro Irrigation Systems, Charles M. Burt, Robert E. Walker, Stuart W. Styles
BioResource and Agricultural Engineering
No abstract provided.
Asymptotic Functions As Kernels Of The Schwartz Distributions, Todor D. Todorov
Asymptotic Functions As Kernels Of The Schwartz Distributions, Todor D. Todorov
Mathematics
Using a version of the sequential method we introduce a class of generalized functions called here "asymptotic functions''. This class contains kernels of all Schwartz distributions and is equipped with a correctly defined multiplication operation. So, in a sense, one solves the problem of "multiplication of Schwartz distributions" although the solution refers to the class of the asymptotic functions and not to the Schwartz distributions themselves. The paper is a continuation of a series of works [1-10] but here only part of the results of [5], [6] and [8] will be needed.
Applications Of Optical Emission Spectroscopy To Semiconductor Processing, Richard N. Savage, John G. Shabushnig, Paul R. Demko
Applications Of Optical Emission Spectroscopy To Semiconductor Processing, Richard N. Savage, John G. Shabushnig, Paul R. Demko
Materials Engineering
Optical emission spectroscopy (OES) has proven to be a valuable tool in the developmrent and production of state-of-the-art semiconductor devices. Application to the plasma etching of a variety of materials necessary for integrated circuit fabrication is discussed, with particular emphasis placed on etch endpoint analysis. The utility of OES techniques in monitoring photolithographic processes is also presented.
So Much Life With (So To Speak) So Little Living: The Literary Side Of The James-Wells Debate, Douglas Keesey
So Much Life With (So To Speak) So Little Living: The Literary Side Of The James-Wells Debate, Douglas Keesey
English
No abstract provided.
The Fate Of Diazinon Applied To Thatched Turf, B. E. Branham, David J. Wehner
The Fate Of Diazinon Applied To Thatched Turf, B. E. Branham, David J. Wehner
Office of the Dean (CAFES) Scholarship
Diazinon (0,0-diethyl-0-(2-isopropyl-6-methyl-4-primidinyl) phosphorothioate) is widely used to control turfgrass insect pests. Poor control of soil-inhabiting insects has been found where diazinon has been applied to thatched turfgrass stands. The purpose of this study was to evaluate the environmental fate of diazinon applied to turfgrass stands. A microecosystem was used to follow the fate of radiolabeled diazinon surface applied to Kentucky bluegrass (Poa pratensis L.) turfs, with or without a thatch layer, growing on Flanigan silt loam (fine, montmorillonitic, mesic Aquic Argiudoll) irrigated daily or every 4 days. Loss of diazinon by volatilization, leaching, and degradation accompanied by release of …
Federal Budget Cuts: Bureaucrats Trim The Meat, Not The Fat: Comment, Michael L. Marlow
Federal Budget Cuts: Bureaucrats Trim The Meat, Not The Fat: Comment, Michael L. Marlow
Economics
No abstract provided.
On The Notion Of Precohomology, Goro Kato
On The Notion Of Precohomology, Goro Kato
Mathematics
ABSTRACT. For a cochain complex one can have the cohomology functor. In this paper we introduce the notion of precohomology for a cochain that is not a complex, i. e., dq+1 o dq may not be zero. Such a cochain, with objects and morphisms of an abelian category A, is called a cochain precomplex whose category is denoted by Pco (A). If a cochain precomplex is actually a cochain complex, then the notion of precohomology coincides with that of cohomology, i. e., precohomology is a gene¬ralization of cohomology. For a left exact functor F from an abelian category …
Affinity, George Abbe
Some Reflections On Animal Research, Steven F. Sapontzis
Some Reflections On Animal Research, Steven F. Sapontzis
Between the Species
No abstract provided.
A Letter From The Future, Sally Gearhart
Gandhi And The Cow: The Ethics Of Human/Animal Relationships, Mark Juergensmeyer
Gandhi And The Cow: The Ethics Of Human/Animal Relationships, Mark Juergensmeyer
Between the Species
No abstract provided.
Personal Reflections, Judith Hampson
The Products Δn2(X), Δ(X). X-N, ϴ(X). X-N, Etc. In The Class Of The Asymptotic Functions, Todor D. Todorov
The Products Δn2(X), Δ(X). X-N, ϴ(X). X-N, Etc. In The Class Of The Asymptotic Functions, Todor D. Todorov
Mathematics
Several products like δn(x), δ(x)ϴ(x), δ(m)(x). X-n, ϴ(x). X-n, etc., where δ(x), ϴ(x), X-n, etc., are kernels of the corresponding Schwartz distributions, are studied in the framework of the class of the asymptotic functions F0 introduced in a previous paper [11]. In some particular cases many formulae are derived and several examples are presented. The work is of mathematical type but its motivations lie in some problems in quantum theory. It is closely …
Soil-Saprolite Profiles Derived From Mafic Rocks In The North Carolina Piedmont: I. Chemical, Morphological, And Mineralogical Characteristics And Transformations, T. J. Rice, S. W. Buol, S. B. Weed
Soil-Saprolite Profiles Derived From Mafic Rocks In The North Carolina Piedmont: I. Chemical, Morphological, And Mineralogical Characteristics And Transformations, T. J. Rice, S. W. Buol, S. B. Weed
Earth and Soil Sciences
The chemical, morphological and mineralogical properties of two Enon sandy loam (fine, mixed, thermic Ultic Hapludalfs) soilsaprolite profiles, one formed on gabbro and the other on metagabbro, are compared. Clay skins are scarce and stress cutans common in the argillic horizons of these soils. Iron-manganese concretions are concentrated in soil horizons immediately above the argillic horizons. The high shrink-swell capacities and slow permeabilities of the argillic horizons result in relatively shallow depths to paralithic contact with saprolite. The parent rock from the Enon profile near Albemarle, Stanly County, North Carolina is a medium-grained metagabbro with chlorite, hornblende, quartz, and calcic …
Soil-Saprolite Profiles Derived From Mafic Rocks In The North Carolina Piedmont: Ii. Association Of Free Iron Oxides With Soils And Clays, T. J. Rice, S. B. Weed, S. W. Buol
Soil-Saprolite Profiles Derived From Mafic Rocks In The North Carolina Piedmont: Ii. Association Of Free Iron Oxides With Soils And Clays, T. J. Rice, S. B. Weed, S. W. Buol
Earth and Soil Sciences
The association of free Fe oxides with soils and clays from two Enon sandy loam (Ultic Hapludalfs, fine, mixed, thermic) soilsaprolite profiles was studied. Goethite was the dominant Fe oxide identified. Lepidocrocite was detected in trace amounts in some samples. FeCBD/clay ratios were highest in the epipedons of these soils suggesting the concentrating of Fe oxides as a result of aluminosilicate mineral weathering. External (BET-N2) surface area measurements of non-deferrated and deferrated clays were analyzed in conjunction with electron micrographs of selected clay fractions to determine the association of free Fe oxides with aluminosilicate clays as a function of depth …
Pulsatile Administration Of Gonadotropin-Releasing Hormone To Anestrous Sows: Endocrine Changes Associated With Gnrh-Induced And Spontaneous Estrus, Jeffrey D. Armstrong, J. H. Britt
Pulsatile Administration Of Gonadotropin-Releasing Hormone To Anestrous Sows: Endocrine Changes Associated With Gnrh-Induced And Spontaneous Estrus, Jeffrey D. Armstrong, J. H. Britt
Office of the President Scholarship
This experiment determined whether pulsatile administration of gonadotropin-releasing hormone (GnRH) would induce estrus and ovulation in seasonally anestrous primiparous sows and compared endocrine responses of GnRH-induced sows with those of primiparous sows that exhibited spontaneous estrus after weaning. Seventeen primiparous Landrace X Large White sows farroed in August 1982, lactated 23.8 ± 0.4 days (mean ± SEM), and weaned 9.0 ± 0.3 pigs per litter. Blood for determination of progesterone, luteinizing hormone (LH), and estradiol-17β (E) was collected every 6 h from 1 day before to 12 days after weaning. Twelve sows exhibited spontaneous estrus 135 ± 9 h …
Advances In Verification Technology, David W. Hafemeister
Advances In Verification Technology, David W. Hafemeister
Physics
The alleged limits of verification techniques have been used to justify lack of action at the negotiating table, but advances in computer science and optics should help dispel doubts about the verifiability of treaties
Microaerobic Conditions Are Required For Magnetite Formation Within Aquaspirillum Magnetotacticum, R. P. Blakemore, K. A. Short, D. A. Bazylinski, Charles Rosenblatt, Richard B. Frankel
Microaerobic Conditions Are Required For Magnetite Formation Within Aquaspirillum Magnetotacticum, R. P. Blakemore, K. A. Short, D. A. Bazylinski, Charles Rosenblatt, Richard B. Frankel
Physics
The amount of magnetite (Fe3O4) within magnetosomes of the microaerophilic bacterium Aquaspirillum magnetotacticum varies with oxygen and nitrogen supply. The development of optical methods for directly measuring cell magnetism in culture samples has enabled us to quantitate bacterial Fe3O4 yields. We measured final cell yields, average cell magnetic moments, and magnetosome yields of growing cells. Cultures were grown with NO3-, NH4+, or both, in sealed, unshaken vials with initial headspace Po2 values ranging from 0 (trace) to 21 kPa.
More than 50% of cells had detectable …
A Light Transmission Model For Biological Materials, R. A. Cavaletto, Shrinivasa Upadhyaya, Michael O'Brien
A Light Transmission Model For Biological Materials, R. A. Cavaletto, Shrinivasa Upadhyaya, Michael O'Brien
BioResource and Agricultural Engineering
This paper describes a model to predict light transmission in biological materials. The model can be used for any shaped sample. Scattering and absorption coefficients are used in the model and may be varied throughout the sample, thus allowing both uniformly distributed and concentrated defects to be modelled.
Guarding Of Table Saws With Light Beams: The Light Guard Concept, R. A. Cavaletto, M. S. Kaminaka, C. M. Zahner
Guarding Of Table Saws With Light Beams: The Light Guard Concept, R. A. Cavaletto, M. S. Kaminaka, C. M. Zahner
BioResource and Agricultural Engineering
This paper describes a unique type of psychological safety guard for hazardous tools such as table saws, presses. and other tools with areas and components which are dangerous to human fingers, hands, and limbs. It is not a piece of hardware but rather a shalt of light which defines a danger zone around the saw blade or cutting area.
Mustang Daily, December 7, 1984
Mustang Daily, December 7, 1984
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, December 6, 1984
Mustang Daily, December 6, 1984
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
December 6, 1984 Cal Poly Report, Public Affairs Office
December 6, 1984 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Mustang Daily, December 5, 1984
Mustang Daily, December 5, 1984
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.