References Intensity Quantitative Analysis Using Thin-Layer Aerosol Samples

1983 ◽  
Vol 27 ◽  
pp. 339-348 ◽  
Author(s):  
Briant L. Davis
Keyword(s):  
Quantitative Analysis ◽  
Sample Preparation ◽  
Thin Layer ◽  
South Dakota ◽  
Subject Matter ◽  
Theoretical Basis ◽  
Normal Sample ◽  
Atmospheric Sciences ◽  
South Dakota School ◽  
The Subject

Interest in the reference intensity ratio CRIR) method continues as a result of the potential capabilities of the technique for rapid multi-component quantitative analysis. The theoretical basis for the RIR technique is now well established (Chung, 1974; Hubbard et al., 1976; Davis, 1980, 1981; Davis and Johnson, 1982), Major areas for which the method can still be greatly improved include the methods used for sample preparation, the measurement of accurate intensities, and the use of an internally consistent set of reference intensity constants (designated RIR, or ki). In the methodology developed at the Institute of Atmospheric Sciences (IAS), South Dakota School of Mines and Technology, sample preparation centers about the suspension of the pulverized sample into an aerosol and collection onto filter media. Because of this step, intensities must be corrected from their raw values to intensities representative of “infinite thickness“ and volumetrically constant conditions of normal sample diffraction. The measurement and correction of intensities and sample preparation methodology is the subject matter of the present paper.

scholarly journals Melioration Terminology in Ukrainian Scientific Picture of the World

2019 ◽  
Vol 10 (2) ◽  
pp. 337-348 ◽  
Author(s):  
Tetyana Petrova
Keyword(s):  
Functional Analysis ◽  
Quantitative Analysis ◽  
Theoretical Basis ◽  
Comparative Method ◽  
Natural Sciences ◽  
Scientific Cognition ◽  
World Outlook ◽  
The World ◽  
Structured System ◽  
The Subject

The subject of the study is the features, functions and structure of the Ukrainian scientific picture of the world and its component – the picture of the world of melioration science. The theoretical basis of the research is the thesis of the foreign and Ukrainian scholars on the scientific picture of the world as a consolidated and structured system of universal scientific knowledge. The methods of the research are the following: a method of structural and functional analysis of the concept, a method of definition analysis, a comparative method and a method of quantitative analysis. It has been found that the scientific picture of the world is a system of concepts that represents the scientific cognition of the world. The functions of the scientific picture of the world are usually identified as heuristic, synthetic, methodological, systematising and world outlook creating. The unified scientific picture of the world consists of the following types: humanitarian, natural, social and technical ones. The format of the scientific picture of the world expressed by the terminology of melioration belongs to the natural sciences picture of the world. The contributors to the melioration picture of the world are the subsystems of its sub-sectors, namely: water, land, chemical, technical, phytomelioration and others. The modern melioration picture of the world is largely formed by means of international terms (about 70%), and to a lesser extent by the genuine (national) vocabulary (30%).

Biennial Review of Planar Chromatography: 2015–2017

2018 ◽  
Vol 101 (4) ◽  
pp. 905-913 ◽  
Author(s):  
Joseph Sherma
Keyword(s):  
Quantitative Analysis ◽  
Sample Preparation ◽  
Thin Layer ◽  
Current Status ◽  
Planar Chromatography ◽  
Detection And Identification ◽  
Student Experiments ◽  
Layer Chromatography ◽  
Preparative Layer Chromatography ◽  
Separated Zones

Abstract The most important advances in planar chromatography published between November 1, 2015, and November 1, 2017, are reviewed in this paper. Included are an introduction to the current status of the field; student experiments and reviews; apparatus and techniques for sample preparation and TLC separations; detection and identification of separated zones; quantitative analysis; preparative layer chromatography; and thin-layer radiochromatography. Selected applications are given in the various sections of the review.

Continuity and Change: Fifty Years of the Journal/Revue

2017 ◽  
Vol 50 (1) ◽  
pp. 17-35 ◽  
Author(s):  
Graham White
Keyword(s):  
Quantitative Analysis ◽  
Subject Matter ◽  
Race And Ethnicity ◽  
Institutional Affiliation ◽  
Gender And Politics ◽  
Continuity And Change ◽  
Canadian Politics ◽  
The Subject ◽  
Large Research

AbstractThis article surveys the first five decades of the Journal/Revue, with particular emphasis on patterns of change and continuity. The article presents a quantitative analysis of the articles published in the Journal/Revue, looking at, among other things, the balance of articles published in English and in French, the proportion of articles authored by women, the location and institutional affiliation of authors and the subject matter of published articles. Significant continuities emerge from the data, such as the predominance of Canadian-based authors writing on aspects of Canadian politics and the dominance of authors from large research-intensive universities. Yet change is also evident, for example in the number of women publishing in the Journal/Revue and in the emergence of articles in subfields not found in the Journal/Revue’s earlier days, most notably Aboriginal politics, gender and politics, and race and ethnicity.

Intrinsic versus extrinsic motivation: A study of undergraduate student motivation in science

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
Mark Gallo ◽  
Vince Rinaldo
Keyword(s):  
Quantitative Analysis ◽  
Subject Matter ◽  
Student Motivation ◽  
Undergraduate Student ◽  
Extrinsic Motivation ◽  
Educational Process ◽  
Percent Increase ◽  
The Subject ◽  
Science Educators ◽  
Do So

Many individuals who enter into science programs do so because study in this area is a requirement rather than because of a genuine interest in the subject matter. As a result, science educators need to find new ways of motivating today’s learners. One approach is to modify the educational process so that students no longer find themselves in the roles of traditional learners, where the instructor directs them to the information. Instead, they need to become active learners, who take responsibility for their own learning both in and out of the classroom. This study examined the effects of an external motivation approach that utilized a token system known as Microbucks. Qualitative examination of the data showed that students responded favourably and quantitative analysis showed up to a 9.39 percent increase in final grades.

Biennial Review of Planar Chromatography: 2013–2015

2016 ◽  
Vol 99 (2) ◽  
pp. 323-331 ◽  
Author(s):  
Joseph Sherma
Keyword(s):  
Quantitative Analysis ◽  
Sample Preparation ◽  
Thin Layer ◽  
Current Status ◽  
Planar Chromatography ◽  
Detection And Identification ◽  
Student Experiments ◽  
Layer Chromatography ◽  
Preparative Layer Chromatography ◽  
Separated Zones

Abstract The most important advances in planar chromatography published between November 1, 2013 and November 1, 2015 are reviewed in this paper. Included are an introduction to the current status of the field; student experiments, books, and reviews; apparatus and techniques for sample preparation and TLC separations; detection and identification of separated zones; quantitative analysis; preparative layer chromatography; and thin layer radiochromatography. Selected applications are given in the various sections of the review.

Sample Preparation and Methodology for X-Ray Quantitative Analysis of Thin Aerosol Layers Deposited on Glass Fiber and Membrane Filters

1981 ◽  
Vol 25 ◽  
pp. 295-300 ◽  
Author(s):  
Briant L. Davis ◽  
L. Ronald Johnson
Keyword(s):  
Quantitative Analysis ◽  
Sample Preparation ◽  
Error Analysis ◽  
Glass Fiber ◽  
Theoretical Basis ◽  
Experimental Techniques ◽  
X Ray Diffraction ◽  
X Ray ◽  
Membrane Filters ◽  
Formal Error

The purpose of this paper is to summarize the theoretical basis and experimental techniques for application of the referenee intensity method to quantitative, multi-component analysis by x-ray diffraction (XRD). Detailed descriptions of the technique and formal error analysis are discussed by Davis (1978, 1980, 1981a, 1981b, 1981c).

Words

PMLA ◽  
1935 ◽  
Vol 50 (4) ◽  
pp. 1320-1327
Author(s):  
Colbert Searles
Keyword(s):  
Subject Matter ◽  
Assistant Professor ◽  
The Subject

THE germ of that which follows came into being many years ago in the days of my youth as a university instructor and assistant professor. It was generated by the then quite outspoken attitude of colleagues in the “exact sciences”; the sciences of which the subject-matter can be exactly weighed and measured and the force of its movements mathematically demonstrated. They assured us that the study of languages and literature had little or nothing scientific about it because: “It had no domain of concrete fact in which to work.” Ergo, the scientific spirit was theirs by a stroke of “efficacious grace” as it were. Ours was at best only a kind of “sufficient grace,” pleasant and even necessary to have, but which could, by no means ensure a reception among the elected.

The Taxonomic Structuring of Medical Information and its Usefulness in this Form

1965 ◽  
Vol 04 (03) ◽  
pp. 112-114 ◽  
Author(s):  
H. Zinsser
Keyword(s):  
Subject Matter ◽  
Medical Information ◽  
Central Core ◽  
Diagnostic Strategy ◽  
Programmed Instruction ◽  
Orderly Fashion ◽  
The Subject

An outline has been presented in historical fashion of the steps devised to organize the central core of medical information allowing the subject matter, the patient, to define the nature and the progression of the diseases from which he suffers, with and without therapy; and approaches have been made to organize this information in such fashion as to align the definitions in orderly fashion to teach both diagnostic strategy and the content of the diseases by programmed instruction.

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