scholarly journals Development and evaluation of the organization`s logistics strategy based on the application of bifurcation theory

2020 ◽  
pp. 47-50
Author(s):  
M. Yu. Uchirova ◽  
L. A. Ilin ◽  
S. V. Khudyakov
Keyword(s):  
Bifurcation Theory ◽  
Dynamic Change ◽  
Unstable State ◽  
Main Concept ◽  
Logistics System ◽  
Logistics Strategy ◽  
Qualitative Dynamic ◽  
Individual Variables ◽  
Functional Subsystem ◽  
The Individual

The article considers the main approaches to the development and evaluation of the organization’s logistics strategy based on the application of bifurcation theory. The paper notes that the greatest competitive advantages in the process of carrying out activities can be obtained by the company when designing a unique logistics strategy based on the individual features of the organization’s logistics system. The authors reveal that the bifurcation theory allows you to determine the conditionality of a qualitative dynamic change in the behavior of a logistics system by an infinitesimal change in certain parameters of the system. As part of the assessment of the organization’s logistics management strategy, bifurcation theory forms the basis for determining shift in the qualitative parameter of the system and makes it possible to assess the effect of this parameter on the behavior of the entire system as a whole and each functional subsystem separately. The study reflects that it is possible to determine the critical values of individual variables, when overcoming which the logistics system itself goes into unstable state. The main concept defining the process of critical transition of the state of the logistic system is the bifurcation point.

Development of a German-Language Questionnaire to Measure Collective Orientation as an Individual Attitude

2017 ◽  
Vol 76 (3) ◽  
pp. 91-105 ◽  
Author(s):  
Vera Hagemann
Keyword(s):  
Team Performance ◽  
Reliability And Validity ◽  
Future Research ◽  
German Language ◽  
Team Members ◽  
Collective Orientation ◽  
Team Research ◽  
German Speaking ◽  
Individual Variables ◽  
The Individual

Abstract. The individual attitudes of every single team member are important for team performance. Studies show that each team member’s collective orientation – that is, propensity to work in a collective manner in team settings – enhances the team’s interdependent teamwork. In the German-speaking countries, there was previously no instrument to measure collective orientation. So, I developed and validated a German-language instrument to measure collective orientation. In three studies (N = 1028), I tested the validity of the instrument in terms of its internal structure and relationships with other variables. The results confirm the reliability and validity of the instrument. The instrument also predicts team performance in terms of interdependent teamwork. I discuss differences in established individual variables in team research and the role of collective orientation in teams. In future research, the instrument can be applied to diagnose teamwork deficiencies and evaluate interventions for developing team members’ collective orientation.

scholarly journals Eight Simple Guidelines for Improved Understanding of Transformations and Nonlinear Effects

2021 ◽  
pp. 109442812199190
Author(s):  
Mikko Rönkkö ◽  
Eero Aalto ◽  
Henni Tenhunen ◽  
Miguel I. Aguirre-Urreta
Keyword(s):  
Generalized Linear Model ◽  
Functional Form ◽  
Nonlinear Models ◽  
Nonlinear Effects ◽  
Recent Past ◽  
Organizational Research ◽  
Common Practices ◽  
Individual Variables ◽  
The Individual ◽  
The Relationship

Transforming variables before analysis or applying a transformation as a part of a generalized linear model are common practices in organizational research. Several methodological articles addressing the topic, either directly or indirectly, have been published in the recent past. In this article, we point out a few misconceptions about transformations and propose a set of eight simple guidelines for addressing them. Our main argument is that transformations should not be chosen based on the nature or distribution of the individual variables but based on the functional form of the relationship between two or more variables that is expected from theory or discovered empirically. Building on a systematic review of six leading management journals, we point to several ways the specification and interpretation of nonlinear models can be improved.

The Method Research of Production Enterprise Logistics System Integration

2013 ◽  
Vol 734-737 ◽  
pp. 3320-3323
Author(s):  
Kai Wang
Keyword(s):  
System Integration ◽  
Point Of View ◽  
System Capacity ◽  
Enterprise Management ◽  
Logistics System ◽  
Production Scale ◽  
Operation Process ◽  
Enterprise Logistics ◽  
The Individual ◽  
Integrated Logistics

With the expansion of consumer market and production scale, the effect of logistics in the enterprise management is also becoming increasingly prominent. But the individual enterprise's logistics system capacity is limited, can not meet the needs of production and consumption timely and the waste of resources in the operation process are the prominent problems in logistics management. This paper explored the logistics system integration ideas and workable solutions of production enterprise from integrated logistics system point of view.

Social trust, norms and morality

Human Affairs ◽  
2013 ◽  
Vol 23 (3) ◽  
Author(s):  
Miroslav Popper
Keyword(s):  
Social Capital ◽  
Political Institutions ◽  
Social Trust ◽  
Local Level ◽  
Dynamic Change ◽  
Short Term ◽  
Legal Norms ◽  
Increased Sensitivity ◽  
The Individual

AbstractThe article approaches the topic of social trust from an evolutionary perspective. It begins by summarising the most influential approaches that have defined specific and social trust and ascertains what causes differences in degrees of trust and how the potential risk of deception might be lowered. It then notes that the basis of morality had already been formed during the era of prehistoric man, who was able to create coalitions against aggressors and to socially control the behaviour of deviants. It points out, however, that having a certain predisposition to behaving cooperatively or an increased sensitivity to recognising and not tolerating behaviour aimed at abusing cooperation is not a sufficient guarantee of the fact that people will always (or at least in the majority of situations) favour cooperation over deception. One of the reasons for this is a tendency to favour short-term gains over long-term ones. The article argues that establishing norms (moral, social and legal) produces a higher level of social trust because it not only “encourages” individuals to behave in certain ways in particular situations but also works as a sanction which “discourages” the individual from socially deviant behaviour. The article then focuses on a debate about the causal relationship between social trust and social capital. It discusses the suggestion that political institutions, government and the judiciary may reduce rather than raise levels of social capital and consequently also the level of social trust. This is partly because of their powerful position and the consequent scope for corruption and partly because of the fact that even when attempting to act honestly, representatives of these institutions cannot sufficiently reflect upon dynamic change at the local level. Finally, the article ends by adopting the position that social trust is built primarily from bottom up and so it is risky to continually doubt the very existence and usefulness of social norms and morality and to be governed simply by legal norms.

Error Analysis of a Mobile Terrestrial LiDAR System

GEOMATICA ◽  
2014 ◽  
Vol 68 (3) ◽  
pp. 183-194 ◽  
Author(s):  
M. Leslar ◽  
B. Hu ◽  
J.G. Wang
Keyword(s):  
Point Cloud ◽  
Point Clouds ◽  
Sensitivity Study ◽  
Error Sources ◽  
Terrestrial Lidar ◽  
Lever Arm ◽  
Ideal Situation ◽  
Individual Variables ◽  
The Individual ◽  
Source Of Error

The understanding of the effects of error on Mobile Terrestrial LiDAR (MTL) point clouds has not increased with their popularity. In this study, comprehensive error analyses based on error propagation theory and global sensitivity study were carried out to quantitatively describe the effects of various error sources in a MTL system on the point cloud. Two scenarios were envisioned; the first using the uncertainties for measurement and calibration variables that are normally expected for MTL systems as they exist today, and the second using an ideal situation where measurement and calibration values have been well adjusted. It was found that the highest proportion of error in the point cloud can be attributed to the boresight and lever arm parameters for MTL systems calibrated using non-rigours methods. In particular, under a loosely controlled error condition, the LiDAR to INS Z lever arm and the LiDAR to INS roll angle contributed more error in the output point cloud than any other parameter, including the INS position. Under tightly controlled error conditions, the INS position became the dominant source of error in the point cloud. In addition, conditional variance analysis has shown that the majority of the error in a point cloud can be attributed to the individual variables. Errors caused by the interactions between the diverse variables are minimal and can be regarded as insignificant.

Modular Origami Robot Inspired by a Scorpion Tail

2018 ◽  
Author(s):  
Jovana Jovanova ◽  
Maja Anachkova ◽  
Viktor Gavriloski ◽  
Dimitar Petrevski ◽  
Franka Grazhdani ◽  
...  
Keyword(s):  
Degrees Of Freedom ◽  
Basic Structure ◽  
Body Parts ◽  
Main Concept ◽  
Multiple Degrees Of Freedom ◽  
Transparent Layer ◽  
Plastic Foil ◽  
Greater Curvature ◽  
The Individual ◽  
Outer Coating

Arthropod animals like scorpions with modular body parts can be an inspiration for a robot’s structure. The design presented here relays on inter-connected origami towers, but could also be easily disassembled. Each origami tower is fully autonomous and at the same time is part of the robot as a whole. The towers are positioned between two platforms that enable modularity. The scorpion’s tale shape is achieved by the varying platform diameter resulting in cone-like form. Each tower is actuated independently to enable multiple degrees of freedom. Maneuvering with separated units, assists in easier reparation as well as replacement. Detaching the towers into separate parts makes this structure develop more precise movements, since every unit will move autonomously. Therefore, having a higher number of separated movements combined leads to a smooth bionic movement. So, the overall hierarchy will be modular contributing to a greater curvature bending of the whole structure. Actuating and maneuvering the robot in the main concept is done by separated electro motors, built in the platform. The basic structure will be built from thick paper with plastic coatings. The thick paper itself is lightweight, but at the same time flexible. To protect the paper towers, double plastic foil is placed as an outer coating which acts as an origami cover. This transparent layer is elastic hence it can follow and support the individual units’ movements. This work is focused on understanding origami towers kinematics and different combinations of inter-connected towers to achieve multiple degrees of freedom. A conceptual model is developed, supported by CAD and mathematical models. At the end a prototype is presented.

Comparison of Russell's resolution of the semantical antinomies with that of Tarski

1976 ◽  
Vol 41 (4) ◽  
pp. 747-760 ◽  
Author(s):  
Alonzo Church
Keyword(s):  
Type Theory ◽  
Simple Theory ◽  
Vicious Circle ◽  
New Members ◽  
Domain Type ◽  
Individual Variables ◽  
The Individual ◽  
Essential Restriction

In this paper we treat the ramified type theory of Russell [6], afterwards adopted by Whitehead and Russell in Principia mathematica [12], so that we may compare Russell's resolution of the semantical antinomies by ramified type theory with the now widely accepted resolution of them by the method of Tarski in [7], [8], [9].To avoid impredicativity the essential restriction is that quantification over any domain (type) must not be allowed to add new members to the domain, as it is held that adding new members changes the meaning of quantification over the domain in such a way that a vicious circle results. As Whitehead and Russell point out, there is no one particular form of the doctrine of types that is indispensable to accomplishing this restriction, and they have themselves offered two different versions of the ramified hierarchy in the first edition of Principia (see Preface, p. vii). The version in §§58–59 of the writer's [1], which will be followed in this paper, is still slightly different.To distinguish Russellian types or types in the sense of the ramified hierarchy from types in the sense of the simple theory of types, let us call the former r-types.There is an r-type i to which the individual variables belong. If β1, β2, …, βm are any given r-types, m ≧ 0, there is an r-type (β1, β2, …, βm)/n to which there belong m-ary functional variables of level n, n ≧ 1. The r-type (α1, α2, …, αm)/k is said to be directly lower than the r-type (β1, β2, …, βm)/n if α1 = β1, α2 = β2, …, αm = βm, k < n.

scholarly journals Individual Predictors of the Radical Right-Wing Vote in Europe: A Meta-Analysis of Articles in Peer-Reviewed Journals (1995–2016)

2018 ◽  
Vol 53 (3) ◽  
pp. 569-593 ◽  
Author(s):  
Daniel Stockemer ◽  
Tobias Lentz ◽  
Danielle Mayer
Keyword(s):  
Meta Analysis ◽  
Radical Right ◽  
Political Regime ◽  
Right Wing ◽  
Quantitative Methodology ◽  
Success Rates ◽  
Quantitative Studies ◽  
Individual Vote ◽  
Individual Variables ◽  
The Individual

In this article, we summarize the individual demand-level factors explaining the radical right-wing vote in European countries. To do so, we first review 46 quantitative peer-reviewed articles featuring the individual vote choice in favour of a radical right-wing party as the dependent variable. To identify relevant articles, we use Kai Arzheimer’s bibliography on the radical right and employ the following inclusion criterion: the articles must be written in English, they must use the individual vote for a radical right-wing party as the dependent variable, they must use a quantitative methodology and they must include some type of regression analysis. Using this strategy, we conduct a meta-analysis of 329 relevant models and find that over 20 individual variables are tested. Because many variables such as attitudes towards immigration, employment, age, education and gender only show moderate success rates in attempting to explain an individual’s propensity to vote for the radical right, we complement the review of quantitative studies with an analysis of 14 qualitative publications. The review of these qualitative works shows that the processes through which somebody becomes a voter, supporter or activist of the radical right are often more complex than the commonly used surveys can portray them. Frequently, feelings of relative economic deprivation and dissatisfaction with the political regime trigger an awakening that makes individuals seek engagement. However, the processes behind this awakening are complex and can only be partially captured by quantitative studies.

Completeness in the theory of types

1950 ◽  
Vol 15 (2) ◽  
pp. 81-91 ◽  
Author(s):  
Leon Henkin
Keyword(s):  
Functional Calculus ◽  
Formal System ◽  
Axiom System ◽  
Second Order ◽  
True Proposition ◽  
Arbitrary Domain ◽  
Individual Variables ◽  
Definition Of ◽  
The Individual ◽  
Positive Integers

The first order functional calculus was proved complete by Gödel in 1930. Roughly speaking, this proof demonstrates that each formula of the calculus is a formal theorem which becomes a true sentence under every one of a certain intended class of interpretations of the formal system.For the functional calculus of second order, in which predicate variables may be bound, a very different kind of result is known: no matter what (recursive) set of axioms are chosen, the system will contain a formula which is valid but not a formal theorem. This follows from results of Gödel concerning systems containing a theory of natural numbers, because a finite categorical set of axioms for the positive integers can be formulated within a second order calculus to which a functional constant has been added.By a valid formula of the second order calculus is meant one which expresses a true proposition whenever the individual variables are interpreted as ranging over an (arbitrary) domain of elements while the functional variables of degree n range over all sets of ordered n-tuples of individuals. Under this definition of validity, we must conclude from Gödel's results that the calculus is essentially incomplete.It happens, however, that there is a wider class of models which furnish an interpretation for the symbolism of the calculus consistent with the usual axioms and formal rules of inference. Roughly, these models consist of an arbitrary domain of individuals, as before, but now an arbitrary class of sets of ordered n-tuples of individuals as the range for functional variables of degree n. If we redefine the notion of valid formula to mean one which expresses a true proposition with respect to every one of these models, we can then prove that the usual axiom system for the second order calculus is complete: a formula is valid if and only if it is a formal theorem.

scholarly journals Practical aspects of assessing the efficiency of the modern system of public procurement in Ukraine

2018 ◽  
Vol 16 (2) ◽  
pp. 353-363 ◽  
Author(s):  
Bohdan Dmytryshyn ◽  
Ruslana Zhovnovach ◽  
Oleksandr Levchenko ◽  
Yurii Malakhovskyi ◽  
Viktoriya Gonchar
Keyword(s):  
Public Sector ◽  
High Efficiency ◽  
Public Procurement ◽  
Logistics System ◽  
Public Funds ◽  
The Public ◽  
Electronic Procurement ◽  
Before And After ◽  
The Individual ◽  
Procurement System

The issue of reforming the institute of state (public) procurement is one of the key directions of the modernization of the administrative sector of our state. Increasing the efficiency of this institute should be recognized as one of the conditions for ensuring stable economic growth. In this regard, issues relating to the assessment of the efficiency of the use of public funds are of particular interest. The indicators of the efficiency of the activity of the public procurement sector in Ukraine in the context of the introduction of the “ProZorro” electronic procurement system are calculated and analyzed. The existing works of the individual scientists in the direction of developing indicators of the efficiency that can be used to evaluate the results of the operation of the procurement logistics system in the public sector in Ukraine are generalized. As a result, approaches have been identified that can be used to determine the effectiveness of the participation of customers, private sector representatives and the system of electronic public procurement in general. On the basis of retrospective data of past years and the first half of the current year, a number of estimates of absolute and relative savings, as well as indicators of the effectiveness of the open bidding in the public sector of Ukraine have been identified. The dynamics of these indicators before and after the introduction of the “ProZorro” electronic procurement system was analyzed. The analysis shows that the first results of the functioning of the “ProZorro” system demonstrate the existence of negative trend of competition and reduction in the amount of savings in public funds. Ensuring high efficiency and competitiveness, integrity and transparency of the procurement process are the main tasks of the Ukrainian government in the field of public procurement. The authors argue that the introduction of the “ProZorro” system can help to solve them successfully, and the application of the analytics module enables to calculate the savings from the use of this system.

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