Consistency of Individual Patterns of Autokinetic Direction

1966 ◽  
Vol 23 (3_suppl) ◽  
pp. 1119-1123 ◽  
Author(s):  
Douglas G. Pearce
Keyword(s):  
Directional Dominance ◽  
Direction Change ◽  
Coefficient Of Concordance ◽  
The Individual ◽  
Range Of Values

Four Ss continuously reported the direction of autokinetic movement during 20 10-min. sessions. Individual patterns of directional dominance and change in direction over the 20 sessions were assessed by means of the Kendall coefficient of concordance. Individual patterns of directional dominance were consistent; the range of values of W for the four Ss was from 0.619 to 0.791. The individual patterns of direction change were generally less consistent; the range of W was from 0.242 to 0.704.

AN IMPROVED METHOD FOR THE ASSAY OF PROGESTERONE BY COMPETITIVE PROTEIN BINDING

1970 ◽  
Vol 63 (2) ◽  
pp. 225-241 ◽  
Author(s):  
B. D. Reeves ◽  
M. L. A. de Souza ◽  
I. E. Thompson ◽  
E. Diczfalusy
Keyword(s):  
Protein Binding ◽  
Binding Sites ◽  
Entire Range ◽  
Improved Method ◽  
Plasma Progesterone ◽  
Extraction And Purification ◽  
Corticosteroid Binding Globulin ◽  
Competitive Protein Binding ◽  
The Individual ◽  
Range Of Values

ABSTRACT An improved method for the assay of plasma progesterone by competitive protein binding is described. The improvement is based upon rigorous control of the variables, the compensation for and standardisation of interfering factors inherent in the method and the use of a human corticosteroid binding globulin, that meets the requirements for sensitivity at levels of 1.0 ng of progesterone and below. The assessment of the reliability of the individual steps in the method as well as that of the complete method is presented. The sensitivity of the method is around 0.2 ng progesterone per ml plasma. Accuracy was measured by adding progesterone in amounts ranging from 0.0 to 1.0 ng to 1.0 ml plasma. There was a linear relationship between the progesterone added and recovered throughout the entire range of values, with a coefficient of correlation (r) of 0.94. Of 52 related steroids tested, none was found which would remain associated with progesterone following extraction and purification and which would also compete with progesterone for binding sites.

scholarly journals Computing the Mean-Variance-Sustainability Nondominated Surface by ev-MOGA

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
A. Garcia-Bernabeu ◽  
J. V. Salcedo ◽  
A. Hilario ◽  
D. Pla-Santamaria ◽  
Juan M. Herrero
Keyword(s):  
Portfolio Selection ◽  
Pareto Front ◽  
Socially Responsible ◽  
Responsible Investment ◽  
Individual Preferences ◽  
The Mean ◽  
The Individual ◽  
Memory Resources ◽  
Mean Variance ◽  
Range Of Values

Despite the widespread use of the classical bicriteria Markowitz mean-variance framework, a broad consensus is emerging on the need to include more criteria for complex portfolio selection problems. Sustainable investing, also called socially responsible investment, is becoming a mainstream investment practice. In recent years, some scholars have attempted to include sustainability as a third criterion to better reflect the individual preferences of those ethical or green investors who are willing to combine strong financial performance with social benefits. For this purpose, new computational methods for optimizing this complex multiobjective problem are needed. Multiobjective evolutionary algorithms (MOEAs) have been recently used for portfolio selection, thus extending the mean-variance methodology to obtain a mean-variance-sustainability nondominated surface. In this paper, we apply a recent multiobjective genetic algorithm based on the concept of ε-dominance called ev-MOGA. This algorithm tries to ensure convergence towards the Pareto set in a smart distributed manner with limited memory resources. It also adjusts the limits of the Pareto front dynamically and prevents solutions belonging to the ends of the front from being lost. Moreover, the individual preferences of socially responsible investors could be visualised using a novel tool, known as level diagrams, which helps investors better understand the range of values attainable and the tradeoff between return, risk, and sustainability.

On the determination of intermolecular energies by inductive analysis

1942 ◽  
Vol 38 (2) ◽  
pp. 224-230
Author(s):  
William J. C. Orr
Keyword(s):  
Virial Coefficients ◽  
Intermolecular Potential ◽  
Rare Gases ◽  
Second Virial Coefficients ◽  
Classical Expression ◽  
The Individual ◽  
Image Position ◽  
Range Of Values ◽  
Inductive Analysis

For a direct comparison of the individual attractive and repulsive terms of an intermolecular potential determined by the inductive analysis of themodynamic data with the same terms calculated by quantal methods it is desirable to carry out the analyses, in the first approximation, with an intermolecular potential of the form ø(R) = Pe−aR − A1/R6 − A2/R8. For mathematical convenience, in place of the above expression, two potential functions,andare considered, the first being taken to be adequate in the range of values of R between 0 and R0 (the minimum of the potential function) and the second, in the range from R0 to ∞. By dividing the problem in this way it is possible to find substitutions which permit the integration of the classical expression for the second virial coefficients (and other appropriate thermodynamic data) directly in terms of fairly simple series in | ψ0 |, R0, a and r. Finally it is pointed out that for such simple atoms or molecules as the rare gases, oxygen, nitrogen and methane r may be taken as 0·15 throughout, which considerably simplifies the application of the method to the experimental data.

Creep Characterization Of Ceramic BGA

2004 ◽  
Vol 1 (2) ◽  
pp. 102-107
Author(s):  
Lewis S. Goldmann ◽  
Mukta Farooq
Keyword(s):  
Compressive Loading ◽  
Compressive Force ◽  
Creep Model ◽  
Equivalent Material ◽  
Geometric Stiffening ◽  
The Individual ◽  
Term Creep ◽  
Range Of Values

Long term creep of a ceramic ball grid array (CBGA) solder ball under compressive loading was investigated. An experiment was conducted with two levels of loading and four of temperature. Analysis of the data assumed the composite ball structure could be simulated by an interconnection having the same shape, but of a single equivalent material. Curve fitting determined the stress exponent and activation energy of the equivalent material in the Norton creep model; the values were consistent with the range of values of the individual components available in the literature. Nonlinearity of the change in ball height with time was hypothesized to be due to geometric stiffening, a hypothesis which was confirmed by a simplified model. The model may be used to estimate creep behavior of other ball geometries having the same material set. The final result of this work - a closed form equation describing height decrease as a function of compressive force, temperature and time - can be used to simplify complex modeling of an entire package, and as an aid in designing accelerated thermal cycles which appropriately synchronize solder creep and fatigue.

scholarly journals Selection of parents for low nitrogen stress through the combining ability of maize partially inbred lines

2019 ◽  
Vol 41 ◽  
pp. e42705
Author(s):  
Rafael Heinz ◽  
Larissa Pereira Ribeiro ◽  
Manoel Carlos Gonçalves ◽  
Leonardo Lopes Bhering ◽  
Paulo Eduardo Teodoro
Keyword(s):  
Combining Ability ◽  
Diallel Analysis ◽  
Inbred Lines ◽  
General Combining Ability ◽  
Adjusted Means ◽  
Coefficient Of Concordance ◽  
Low Nitrogen Stress ◽  
The Individual ◽  
High Yields ◽  
Low Nitrogen

The objective of this work was to estimate the general combining ability of partially inbred lines under high and low nitrogen (N) conditions and to select promising lines to obtain high yields for both conditions. Fifty-five partially inbred S1 progenies were evaluated using the top-cross method, where the lines were crossed with two testers. The 110 top-cross hybrids were evaluated for grain yield during the off-season of 2012 at two sites in the Brazilian Midwest. Partial diallel analysis was performed with the adjusted means of each of the individual analyses of the top crosses. The combining ability of partially inbred lines and testers as well as their interaction with N levels, was estimated for each site. The coefficient of concordance among 15 partially inbred lines selected by the highest general combining ability estimates for each N level was 0.60. The S1 lines 39, 11, 41, 55, 38, 37, 6, 8, and 14 were selected at both N levels. This indicates that these lines can be used to identify ideal hybrids for growing in the off-season in the Brazilian Midwest.

Sport Nutritional Supplements: Quality and Doping Controls

2001 ◽  
Vol 26 (S1) ◽  
pp. S120-S129 ◽  
Author(s):  
Christiane Ayotte ◽  
Jean-François Lévesque ◽  
Marilyn Cléroux ◽  
André Lajeunesse ◽  
Danielle Goudreault ◽  
...  
Keyword(s):  
Adverse Effects ◽  
Clinical Studies ◽  
Extreme Values ◽  
Nutritional Supplements ◽  
The Internet ◽  
Metabolic Profiles ◽  
Self Administration ◽  
Urinary Steroids ◽  
The Individual ◽  
Range Of Values

Nutritional supplements are part of the diet of many athletes. With the exception of caffeine and ephedrine alkaloids, most of these products do not contain substances that are prohibted to competing sportsmen. In recent years, androgens, pro-hormones such as DHEA, androstenedione, androstenediol and 19-norsteroids became available for oral self-administration in many countries and on the Internet. Their claimed actions, efficiency or potency, and the possible adverse effects have not been thoroughly investigated by controlled clinical studies. Some products were shown to contain prohibited substances such as ephedrine, caffeine, or steroids, that were not listed on the label. Urine samples collected after the administration of these supplements can test positive. The administration of natural steroids such as testosterone and its precursors cannot be proven by the sole identification of the substances in the urine. The approach to detection is based upon the deviation of selected parameters of the metabolic profiles from the range of values normally found in humans. The individual ‘s norm is also studied to exclude the few cases of systematic and natural excretion of extreme values. The combination of the GC/MS and the GC/C/IRMS offers a powerful tool to discriminate between the natural and synthetic origin of the urinary steroids.

A physical basis for the Cole-Cole description of electrical conductivity of mineralized porous media

Geophysics ◽  
2013 ◽  
Vol 78 (5) ◽  
pp. D355-D368 ◽  
Author(s):  
Eirik G. Flekkøy
Keyword(s):  
Pore Scale ◽  
Scale Parameters ◽  
Data Inversion ◽  
Pore Length ◽  
Microscopic Interpretation ◽  
Network Simulations ◽  
Conductivity Function ◽  
The Individual ◽  
Range Of Values ◽  
Continuous Range

We found a physical interpretation of the Cole-Cole relation for the conductivity of fluid-saturated, mineralized rocks. The first step was to rederive a diffusive version of the Cole-Cole relation from a pore-scale description that couples diffusion and electrochemistry in a simplified way. We wanted to give the parameters of the Cole-Cole relation, the chargeability and relaxation time, a microscopic interpretation. In this treatment, the exponent known as the frequency dependence was fixed to either [Formula: see text] or [Formula: see text] depending on the ratio of the diffusion length and effective pore length. However, many field observations give [Formula: see text]. The second step was to calculate the conductivity of a network in which the individual bonds are described by the Cole-Cole conductivity function with [Formula: see text]. These network simulations, which did not rely on effective medium approximations, turned out to exhibit Cole-Cole behavior as well with [Formula: see text] taking on a continuous range of values, provided the pore-scale parameters are picked from sufficiently wide distributions. These network results agreed with observations based on field data inversion.

scholarly journals Handling Uncertainty and Sensitivity of ERA Acute Towards Input Parameters

2021 ◽  
pp. 87-107
Author(s):  
Cathrine Stephansen ◽  
Anders Bjørgesæter ◽  
Odd Willy Brude ◽  
Ute Brönner ◽  
Tonje Waterloo Rogstad ◽  
...  
Keyword(s):  
Scoring System ◽  
Deterministic Model ◽  
Uncertainty Evaluation ◽  
Sensitivity Testing ◽  
Input Parameters ◽  
Set Up ◽  
The Individual ◽  
Parameter Values ◽  
True Values ◽  
Range Of Values

AbstractUncertainty evaluation and sensitivity testing of the functions and parameters used in ERA Acute serve two functions. ERA Acute is a deterministic model which is sensitive to the range of values used for the parameters. Parameters have inherent uncertainties as to what their true values are, and functions may have varying strength of knowledge. The individual functions were tested with respect to their sensitivity towards variation of the parameter values using both deterministic and stochastic testing. Based on the testing, an uncertainty scoring system was used to identify and prioritize the most important parameters for reducing uncertainty. Recommendations for handling the uncertainty and securing comparability in spite of uncertainty were set up as a conclusion of the studies.

The evaluation of cattle foods and diets in terms of the ruminal concentration of volatile fatty acids I. The effects of level of intake, frequency of feeding, the ratio of hay to concentrates in the diet, and of supplementary feeds

1963 ◽  
Vol 61 (3) ◽  
pp. 341-348 ◽  
Author(s):  
I. H. Bath ◽  
J. A. F. Rook
Keyword(s):  
Acetic Acid ◽  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Mean Value ◽  
Molar Percentage ◽  
Mean Values ◽  
The Mean ◽  
Feeding Regimen ◽  
The Individual ◽  
Range Of Values

1. A study was made of the effects of feeding regimen and the composition of the diet on the ruminal production of V.f.a.'S in cattle.2. The day-to-day variations in the pattern of rumen fermentation in cows given a diet of hay and concentrates indicated that within-cow differences in the molar proportions of the acids from diet to diet are of significance if they exceed about 3% (of the mean value) for acetic acid, about 10% for propionic and butyric acids, and about 25% for valeric acid. The results emphasized also the important differences to be found between cows given the same diet.3. A change in the frequency of feeding from once to four times daily at a constant daily drymatter intake had little effect on the daily mean values for pH, concentration of total V.f.a.'S, or the molar percentages of the individual acids, but almost invariably decreased the range of values observed between feeding.4. With diets of hay and of hay and concentrates an increase in daily dry-matter intake was associated with a fall in pH and an increase in the concentration of total V.f.a.'S; with the diet of hay and concentrates there was a considerable decrease in the molar percentage of acetic acid and a corresponding increase in N-butyric, but there was little change in the molar percentages of the acids with the diet of hay.

scholarly journals ETHICAL LEADERSHIP: CONCEPTUALIZATION AND MEASUREMENT

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Madyaning Krisharyuli ◽  
Fathul Himam ◽  
Zulmi Ramdani
Keyword(s):  
Grounded Theory ◽  
Mixed Methods ◽  
Ethical Leadership ◽  
Personal Development ◽  
Research Method ◽  
City Government ◽  
Indigenous Perspectives ◽  
The Individual ◽  
Range Of Values ◽  
Yogyakarta City

This study aims to find out and build theory and interviews with making a scale and begin to measure the scale of ethical leadership. Not many measurements make the scale of ethical leadership by involving indigenous perspectives in its construction, so it becomes important to scale ethical leadership. Completed research method by using mixed methods for 195 leaders as respondents in the Yogyakarta City Government. Five leaders as respondents were interviewed using feno-grounded theory, 30 respondents in the step of trying out the scale, and 161 respondents for ethical research instruments. The results of the study show that the concept is also by the leader for things such as honesty, fairness, and openness in accordance with applicable rules. There are three factors in the scale of Ethical Leadership, namely Integrity, Professionalism, and Personal Development, which produces reliability r=0.843 with the number of items 24. The range of values of the loading factor between 0.306 to 0.719 shows the scale of ethical leadership, including valid dan reliable able to measure the tendency of ethical leadership. Thus, the ethical leadership scales psychologically appropriate to be used to see the profile of the individual who acts as leaders.

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