scholarly journals Conway's Microdiffusion Analysis: Eighty years on and still counting!

2014 ◽  
Vol 36 (1) ◽  
pp. 34-39
Author(s):  
Bartholomew Masterson
Keyword(s):  
Volumetric Error ◽  
Gaseous Diffusion ◽  
Micro Scale ◽  
The Third ◽  
Biochemical Journal ◽  
New Development ◽  
A New Technique ◽  
The Impact ◽  
Classic Papers

Two papers published by Edward Joseph Conway became Biochemical Journal Classics; both of these concerned the micro-determination of ammonia. Broadly, the 1933 paper with Alfred Byrne described a new technique of general use for the analysis of substances (or products made from them) on a micro-scale that involved simple gaseous diffusion; the 1942 paper with Ethna O'Malley presented enhancements of this new development. In addition, over the period 1939–1963 Conway recapped the content of the classic papers and other related papers in eight editions (five revisions) of his book, Microdiffusion Analysis and Volumetric Error; the book greatly increased the impact of the microdiffusion technique, launched by the Biochemical Journal classic papers. Our story, starting with the isolation of ammonia, extends roughly over three 80-year periods; the first one ending when quantitative analysis by gaseous diffusion was achieved, the second with Conway and Byrne's innovation, and the third from then to the present day.

Periodizing Classic Noir

2017 ◽  
Author(s):  
Robert Miklitsch
Keyword(s):  
The Third ◽  
Recent Interest ◽  
History Of ◽  
The Impact ◽  
The Way

This concluding chapter traces the history of classic noir by reflecting on the way in which the genre has been discursively constituted through its beginnings and endings, an act of periodization that typically entails nominating particular films as the first and last noir in order to differentiate the intervening films from, respectively, proto- and neo-noir. While the recent interest in Stranger on the Third Floor (1940) is one sign that Boris Ingster's film has supplanted The Maltese Falcon (1941) as the first, titular American noir, recent transnational readings of the genre have problematized the reflexive determination of classic noir as a strictly American phenomenon. In fact, the impact of Odds against Tomorrow (1959) on transnational neo-noir indicates that the end or terminus of the classical era is just as provisional—just as open to interpretation and therefore, revision—as its origin.

scholarly journals The Determination of Dendrite Coherency Point Characteristics Using Three New Methods for Aluminum Alloys

2018 ◽  
Vol 8 (8) ◽  
pp. 1236 ◽  
Author(s):  
Iban Gómez ◽  
Ester Viteri ◽  
Jessica Montero ◽  
Mile Djurdjevic ◽  
Gerhard Huber
Keyword(s):  
Cooling Curves ◽  
The Third ◽  
New Methods ◽  
Dendrite Coherency Point ◽  
Zero Line ◽  
Coherency Point ◽  
Dendrite Coherency ◽  
The Impact ◽  
Crossing Point

The aim of this work is to give an overview of existing methods and to introduce three new methods for the determination of the Dendrite Coherency Point (DCP) for AlSi10Mg alloys, as well as to compare the acquired values of DCP based on a thermal analysis and on the analysis of cooling curves working with only one thermocouple. Additionally, the impact of alloying and contaminant elements on the DCP will be also studied. The first two proposed methods employ the higher order derivatives of the cooling curves. The DCP was determined as the crossing point of the second and third derivative curves plotted versus time (method 1) or that of the temperature (method 2) with the zero line just after the maximum liquidus temperature. The third proposed method is based on the determination of the crossing point of the third solid fraction derivative curve with the zero line, corresponding to a minimum of the second derivative. A Taguchi design for the experiments was developed to study the DCP values in the AlSi10Mg alloy. The DCP temperature values of the test alloys were compared with the DCP temperatures predicted by the previous methods and the influence of the major and minor alloying elements and contaminants over the DCP. The new processes obtained a correlation factor r2 from 0.954 and 0.979 and a standard deviation from 1.84 to 2.6 °C. The obtained correlation values are higher or similar than those obtained using previous methods with an easier way to define the DCP, allowing for a better automation of the accuracy of DCP determination. The use of derivative curves plotted versus temperature employed in the last two proposed methods, where the test samples did not have an influence over the registration curves, is proposed to have a better accuracy than those of the previously described methods.

scholarly journals Quantitative extraction of morphologic cell parameters from the diffraction pattern.

1977 ◽  
Vol 25 (7) ◽  
pp. 707-718 ◽  
Author(s):  
G Seger ◽  
M Achatz ◽  
W Heinze ◽  
F Sinsel
Keyword(s):  
Fourier Analysis ◽  
Diffraction Pattern ◽  
Diffraction Plane ◽  
Cell Parameters ◽  
The Third ◽  
Exfoliated Cells ◽  
Quantitative Extraction ◽  
Diffraction Patterns ◽  
A New Technique

A new technique for the fast and quantitative extraction of cell parameters from diffraction patterns was applied to cervical gynecologic material. Based on radial scans through the diffraction pattern, this technique permits the simultaneous determination of the nuclear and cytoplasmic diameter by Fourier analysis of the radial scanning signals after compensation for the intensity falloff by an amplification which is proportional to the third power of the radial position in the diffraction plane. In addition, a correlation between the angle of the highest amplitude of the scanning signals and the coarseness of microstructures in the cell was observed. Illustrative examples of measurements on exfoliated cells of different type are presented.

Investigations on skeletal growth zones via bone scans as base of determination of optimal time for surgery in mandibular asymmetry

2000 ◽  
Vol 39 (05) ◽  
pp. 121-126 ◽  
Author(s):  
R. Werz ◽  
P. Reuland
Keyword(s):  
Bone Growth ◽  
Region Of Interest ◽  
Tracer Uptake ◽  
Optimal Time ◽  
Mandibular Bone ◽  
The Third ◽  
Mandibular Asymmetry ◽  
Bone Scans ◽  
Epiphyseal Plates

Summary Aim of the study was to find out wether there is a common stop of growth of mandibular bone, so that no individual determination of the optimal time for surgery in patients with asymmetric mandibular bone growth is needed. As there are no epiphyseal plates in the mandibular bone, stop of growth cannot be determined on X-ray films. Methods: Bone scans of 731 patients [687 patients (324 male, 363 female) under 39 y for exact determination of end of growth and 44 (21 male, 23 female) patients over 40 y for evaluation of nongrowth dependant differences in tracer uptake] were reviewed for the study. All the patients were examined 3 hours after injection of 99mTc-DPD. Tracer uptake was measured by region of interest technique in different points of the mandibular bone and in several epiphyseal plates of extremities. Results: Tracer uptake in different epiphyseal plates of the extremities shows strong variation with age and good correlation with reported data of bone growth and closure of the epiphyseal plates. The relative maximum of bone activity is smaller in mandibular bone than in epiphyseal plates, which show well defined peaks, ending at 15-18 years in females and at 18-21 years in males. In contrast, mandibular bone shows no well defined end of growing but a gradually reduction of bone activity which remains higher than bone activity in epiphyseal plates over several years. Conclusion: No well defined end of growth of mandibular bone exists. The optimal age for surgery of asymmetric mandibular bone growth is not before the middle of the third decade of life, bone scans performed earlier for determination of bone growth can be omitted. Bone scans performed at the middle of the third decade of life help to optimize the time of surgical intervention.

Social and political dimension of stigmatization: The development of Natasha and Maria images for immigrants in Istanbul

2016 ◽  
Vol 13 (1) ◽  
pp. 159-168
Author(s):  
Bayram Unal
Keyword(s):  
Public Perception ◽  
Daily Life ◽  
Legal Framework ◽  
State Law ◽  
Migrant Women ◽  
Political Dimension ◽  
Security Forces ◽  
Official Discourse ◽  
The Third ◽  
The Impact

This study aims at understanding how the perceptions about migrants have been created and transferred into daily life as a stigmatization by means of public perception, media and state law implementations.  The focus would be briefly what kind of consequences these perceptions and stigmatization might lead. First section will examine the background of migration to Turkey briefly and make a summary of migration towards Turkey by 90s. Second section will briefly evaluate the preferential legal framework, which constitutes the base for official discourse differentiating the migrants and implementations of security forces that can be described as discriminatory. The third section deals with the impact of perceptions influential in both formation and reproduction of inclusive and exclusive practices towards migrant women. Additionally, impact of public perception in classifying the migrants and migratory processes would be dealt in this section.

THE FACTORS OF CAREER SELF-DETERMINATION OF STUDENTS OF HIGHER EDUCATION INSTITUTIONS

2019 ◽  
Vol 7 (1) ◽  
pp. 9-20
Author(s):  
Inna Yeung
Keyword(s):  
Higher Education ◽  
Higher Education Institutions ◽  
Well Being ◽  
Young Person ◽  
Self Determination ◽  
Full Time ◽  
Actual Problem ◽  
The Third ◽  
The Right

Choice of profession is a social phenomenon that every person has to face in life. Numerous studies convince us that not only the well-being of a person depends on the chosen work, but also his attitude to himself and life in general, therefore, the right and timely professional choice is very important. Research about factors of career self-determination of students of higher education institutions in Ukraine shows that self-determination is an important factor in the socialization of young person, and the factors that determine students' career choices become an actual problem of nowadays. The present study involved full-time and part-time students of Institute of Philology and Mass Communications of Open International University of Human Development "Ukraine" in order to examine the factors of career self-determination of students of higher education institutions (N=189). Diagnostic factors of career self-determination of students studying in the third and fourth year were carried out using the author's questionnaire. Processing of obtained data was carried out using the Excel 2010 program; factorial and comparative analysis were applied. Results of the study showed that initial stage of career self-determination falls down on the third and fourth studying year at the university, when an image of future career and career orientations begin to form. At the same time, the content of career self-determination in this period is contradictory and uncertain, therefore, the implementation of pedagogical support of this process among students is effective.

Assessment of sensitivity of the efficiency of regional tax spending towards investment attractiveness of the types of economic activity carried out by the residents of advanced development territory

2020 ◽  
pp. 98-110
Author(s):  
Evgeniya Mikhailovna Popova ◽  
Guzel Mukhtarovna Guseinova ◽  
Sergei Borisovich Milov
Keyword(s):  
Economic Activity ◽  
Socioeconomic Development ◽  
Federal District ◽  
Tax Incentives ◽  
Capital Investments ◽  
The Subject ◽  
Investment Process ◽  
The Impact ◽  
Advanced Development

The deficit of subnational budgets and deceleration capital investments in multiple Russian regions increase the relevance of research aimed at improvement of tax incentivizing practice of the regional investment process. The studies focused on determination of the impact of socioeconomic and institutional factors upon the efficiency of investment tax expenses obtained wide circulation within the foreign scientific literature. The subject of this article is the assessment of sensitivity of the efficiency of regional tax expanses towards investment attractiveness of the types of economic activity carried out by the residents of territories of advanced socioeconomic development, created in the subjects of Far Easter Federal District. The scientific novelty and practical values of this research consists in substantiation of the reasonableness of assessment of investment attractiveness of the types of economic activity that are stimulated by tax incentives. Methodology for assessing investment attractiveness is proposed and tested. The conclusion is made that in case of low investment attractiveness of the type of economic activity, which was planned to support by tax incentives, it is required to conduct and additional analysis to avoid unjustified tax expanses.

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