**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**1497

# Search results for: Turkevich organizer theory

##### 1497 A Mathematical Investigation of the Turkevich Organizer Theory in the Citrate Method for the Synthesis of Gold Nanoparticles

**Authors:**
Emmanuel Agunloye,
Asterios Gavriilidis,
Luca Mazzei

**Abstract:**

Gold nanoparticles are commonly synthesized by reducing chloroauric acid with sodium citrate. This method, referred to as the citrate method, can produce spherical gold nanoparticles (NPs) in the size range 10-150 nm. Gold NPs of this size are useful in many applications. However, the NPs are usually polydisperse and irreproducible. A better understanding of the synthesis mechanisms is thus required. This work thoroughly investigated the only model that describes the synthesis. This model combines mass and population balance equations, describing the NPs synthesis through a sequence of chemical reactions. Chloroauric acid reacts with sodium citrate to form aurous chloride and dicarboxy acetone. The latter organizes aurous chloride in a nucleation step and concurrently degrades into acetone. The unconsumed precursor then grows the formed nuclei. However, depending on the pH, both the precursor and the reducing agent react differently thus affecting the synthesis. In this work, we investigated the model for different conditions of pH, temperature and initial reactant concentrations. To solve the model, we used Parsival, a commercial numerical code, whilst to test it, we considered various conditions studied experimentally by different researchers, for which results are available in the literature. The model poorly predicted the experimental data. We believe that this is because the model does not account for the acid-base properties of both chloroauric acid and sodium citrate.

**Keywords:**
Gold nanoparticles,
Citrate method,
Turkevich organizer theory,
population balance modelling.

##### 1496 Old Age Home Organizer

**Authors:**
Vicky Suri,
Monika Suri Grover,
Raghav Gupta,
Shipra Asija,
Sulabh Arya,
Sushant Jain

**Abstract:**

**Keywords:**
Old Age Home Organizer,
HelpAge India.

##### 1495 An Evolutionary Statistical Learning Theory

**Authors:**
Sung-Hae Jun,
Kyung-Whan Oh

**Abstract:**

**Keywords:**
Evolutionary computing,
Local optima,
Over-fitting,
Statistical learning theory

##### 1494 A Review of Existing Turnover Intention Theories

**Authors:**
Pauline E. Ngo-Henha

**Abstract:**

Existing turnover intention theories are reviewed in this paper. This review was conducted with the help of the search keyword “turnover intention theories” in Google Scholar during the month of July 2017. These theories include: The Theory of Organizational Equilibrium (TOE), Social Exchange Theory, Job Embeddedness Theory, Herzberg’s Two-Factor Theory, the Resource-Based View, Equity Theory, Human Capital Theory, and the Expectancy Theory. One of the limitations of this review paper is that data were only collected from Google Scholar where many papers were sometimes not freely accessible. However, this paper attempts to contribute to the research in clarifying the distinction between theories and models in the context of turnover intention.

**Keywords:**
Job embeddedness theory,
theory of organizational equilibrium (TOE),
Herzberg’s two-factor theory,
turnover intention theories,
theories and models.

##### 1493 Fundamental Concepts of Theory of Constraints: An Emerging Philosophy

**Authors:**
Ajay Gupta,
Arvind Bhardwaj,
Arun Kanda

**Abstract:**

**Keywords:**
Drum-Buffer-Rope,
Goldratt,
ProductionScheduling,
Theory of Constraints.

##### 1492 Learner Autonomy Based On Constructivism Learning Theory

**Authors:**
Haiyan Wang

**Abstract:**

Constuctivism learning theory lays emphasis on the learners' active learning, such as learning initiative, sociality and context. By analyzing the relationship between constructivism learning theory and learner autonomy, this paper explores how to cultivate learners' learner autonomy under the guidance of constructivism learning theory.

**Keywords:**
Constructivism learning theory,
learner autonomy,
relationship,
cultivation.

##### 1491 On Generalizing Rough Set Theory via using a Filter

**Authors:**
Serkan Narlı,
Ahmet Z. Ozcelik

**Abstract:**

**Keywords:**
Rough set,
fuzzy set,
membership function,
knowledge representation and processing,
information theory

##### 1490 Weak Measurement Theory for Discrete Scales

**Authors:**
Jan Newmarch

**Abstract:**

With the increasing spread of computers and the internet among culturally, linguistically and geographically diverse communities, issues of internationalization and localization and becoming increasingly important. For some of the issues such as different scales for length and temperature, there is a well-developed measurement theory. For others such as date formats no such theory will be possible. This paper fills a gap by developing a measurement theory for a class of scales previously overlooked, based on discrete and interval-valued scales such as spanner and shoe sizes. The paper gives a theoretical foundation for a class of data representation problems.

**Keywords:**
Data representation,
internationalisation,
localisation,
measurement theory.

##### 1489 Assessing the Relation between Theory of Multiple Algebras and Universal Algebras

**Authors:**
Mona Taheri

**Abstract:**

**Keywords:**
multiple algebras ,
universal algebras

##### 1488 Use of Item Response Theory in Medical Surgical Nursing Achievement Examination

**Authors:**
Rita C. Ramos

**Abstract:**

**Keywords:**
Achievement Examination,
Item Response Theory,
Medical Surgical,
Nursing.

##### 1487 Inverse Matrix in the Theory of Dynamic Systems

**Authors:**
R. Masarova,
M. Juhas,
B. Juhasova,
Z. Sutova

**Abstract:**

**Keywords:**
Dynamic system,
transfer matrix,
inverse matrix,
modeling.

##### 1486 Studying Mistaken Theory of Calendar Function of Iran-s Cross-Vaults

**Authors:**
Ali Salehipour

**Abstract:**

**Keywords:**
cross-vault,
fire temple,
Calendar function,
Sassanid period

##### 1485 Implementation of Environmental Sustainability into Event Management

**Authors:**
Özlem Küçükakça

**Abstract:**

**Keywords:**
Ecological footprint,
environmental sustainability,
events,
sustainability.

##### 1484 PZ: A Z-based Formalism for Modeling Probabilistic Behavior

**Authors:**
Hassan Haghighi

**Abstract:**

**Keywords:**
formal specification,
formal program development,
probabilistic programs,
CZ set theory,
type theory.

##### 1483 Value from Environmental and Cultural Perspectives or Two Sides of the Same Coin

**Authors:**
Vilém Pařil,
Dominika Tóthová

**Abstract:**

This paper discusses the value theory in cultural heritage and the value theory in environmental economics. Two economic views of the value theory are compared, within the field of cultural heritage maintenance and within the field of the environment. The main aims are to find common features in these two differently structured theories under the layer of differently defined terms as well as really differing features of these two approaches; to clear the confusion which stems from different terminology as in fact these terms capture the same aspects of reality; and to show possible inspiration these two perspectives can offer one another. Another aim is to present these two value systems in one value framework. First, important moments of the value theory from the economic perspective are presented, leading to the marginal revolution of (not only) the Austrian School. Then the theory of value within cultural heritage and environmental economics are explored. Finally, individual approaches are compared and their potential mutual inspiration searched for.

**Keywords:**
Cultural heritage,
environmental economics,
existence value,
value theory.

##### 1482 The Application of the Queuing Theory in the Traffic Flow of Intersection

**Authors:**
Shuguo Yang,
Xiaoyan Yang

**Abstract:**

It is practically significant to research the traffic flow of intersection because the capacity of intersection affects the efficiency of highway network directly. This paper analyzes the traffic conditions of an intersection in certain urban by the methods of queuing theory and statistical experiment, sets up a corresponding mathematical model and compares it with the actual values. The result shows that queuing theory is applied in the study of intersection traffic flow and it can provide references for the other similar designs.

**Keywords:**
Intersection,
Queuing theory,
Statistical experiment,
System metrics.

##### 1481 Learning Paradigms for Educating a New Generation of Computer Science Students

**Authors:**
J. M. Breed,
E. Taylor

**Abstract:**

**Keywords:**
Computer Science,
Education,
Elaboration Theory,
Learning Paradigms,
Social Learning Theory.

##### 1480 Exploring the Nature and Meaning of Theory in the Field of Neuroeducation Studies

**Authors:**
Ali Nouri

**Abstract:**

Neuroeducation is one of the most exciting research fields which is continually evolving. However, there is a need to develop its theoretical bases in connection to practice. The present paper is a starting attempt in this regard to provide a space from which to think about neuroeducational theory and invoke more investigation in this area. Accordingly, a comprehensive theory of neuroeducation could be defined as grouping or clustering of concepts and propositions that describe and explain the nature of human learning to provide valid interpretations and implications useful for educational practice in relation to philosophical aspects or values. Whereas it should be originated from the philosophical foundations of the field and explain its normative significance, it needs to be testable in terms of rigorous evidence to fundamentally advance contemporary educational policy and practice. There is thus pragmatically a need to include a course on neuroeducational theory into the curriculum of the field. In addition, there is a need to articulate and disseminate considerable discussion over the subject within professional journals and academic societies.

**Keywords:**
Neuroeducation studies,
neuroeducational theory,
theory building,
neuroeducation research.

##### 1479 Study on Robot Trajectory Planning by Robot End-Effector Using Dual Curvature Theory of the Ruled Surface

**Authors:**
Y. S. Oh,
P. Abhishesh,
B. S. Ryuh

**Abstract:**

This paper presents the method of trajectory planning by the robot end-effector which accounts for more accurate and smooth differential geometry of the ruled surface generated by tool line fixed with end-effector based on the methods of curvature theory of ruled surface and the dual curvature theory, and focuses on the underlying relation to unite them for enhancing the efficiency for trajectory planning. Robot motion can be represented as motion properties of the ruled surface generated by trajectory of the Tool Center Point (TCP). The linear and angular properties of the six degree-of-freedom motion of end-effector are computed using the explicit formulas and functions from curvature theory and dual curvature theory. This paper explains the complete dualization of ruled surface and shows that the linear and angular motion applied using the method of dual curvature theory is more accurate and less complex.

**Keywords:**
Dual curvature theory,
robot end effector,
ruled surface,
TCP,
tool center point.

##### 1478 A Computer Model of Quantum Field Theory

**Authors:**
Hans H. Diel

**Abstract:**

This paper describes a computer model of Quantum Field Theory (QFT), referred to in this paper as QTModel. After specifying the initial configuration for a QFT process (e.g. scattering) the model generates the possible applicable processes in terms of Feynman diagrams, the equations for the scattering matrix, and evaluates probability amplitudes for the scattering matrix and cross sections. The computations of probability amplitudes are performed numerically. The equations generated by QTModel are provided for demonstration purposes only. They are not directly used as the base for the computations of probability amplitudes. The computer model supports two modes for the computation of the probability amplitudes: (1) computation according to standard QFT, and (2) computation according to a proposed functional interpretation of quantum theory.

**Keywords:**
Computational Modeling,
Simulation of Quantum Theory,
Quantum Field Theory,
Quantum Electrodynamics

##### 1477 Research Analysis in Eclectic Theory (Kaboudan and Sfandiar)

**Authors:**
Farideh Alizadeh,
Mohd Nasir Hashim

**Abstract:**

Present research investigates eclecticism in Iranian theatre on the basis of eclectic theory. Eclectic theatre is a new theory in postmodernism. The theory appeared during 60th – 70th century in some theatres such as “Conference of the Birds”. Special theatrical forms have been developed in many geographical- cultural areas of the world and are indigenous to that area. These forms, as compared with original forms, are considered to be traditional while being comprehensive, the form is considered to be national. Kaboudan and Sfandiar theatre has been influenced by elements of traditional form of Iran.

**Keywords:**
Eclectic theatre,
theatrical forms,
tradition,
play.

##### 1476 Application the Queuing Theory in the Warehouse Optimization

**Authors:**
Jaroslav Masek,
Juraj Camaj,
Eva Nedeliakova

**Abstract:**

The aim of optimization of store management is not only designing the situation of store management itself including its equipment, technology and operation. In optimization of store management we need to consider also synchronizing of technological, transport, store and service operations throughout the whole process of logistic chain in such a way that a natural flow of material from provider to consumer will be achieved the shortest possible way, in the shortest possible time in requested quality and quantity and with minimum costs. The paper deals with the application of the queuing theory for optimization of warehouse processes. The first part refers to common information about the problematic of warehousing and using mathematical methods for logistics chains optimization. The second part refers to preparing a model of a warehouse within queuing theory. The conclusion of the paper includes two examples of using queuing theory in praxis.

**Keywords:**
Queuing theory,
logistics system,
mathematical
methods,
warehouse optimization.

##### 1475 Predicting Dietary Practice Behavior among Type 2 Diabetics Using the Theory of Planned Behavior and Mixed Methods Design

**Authors:**
D.O. Omondi,
M.K. Walingo,
G.M. Mbagaya,
L.O.A. Othuon

**Abstract:**

**Keywords:**
Dietary practice,
Kenya,
Theory of PlannedBehavior,
Type 2 diabetes,
Mixed Methods Design.

##### 1474 Flexure of Cantilever Thick Beams Using Trigonometric Shear Deformation Theory

**Authors:**
Yuwaraj M. Ghugal,
Ajay G. Dahake

**Abstract:**

A trigonometric shear deformation theory for flexure of thick beams, taking into account transverse shear deformation effects, is developed. The number of variables in the present theory is same as that in the first order shear deformation theory. The sinusoidal function is used in displacement field in terms of thickness coordinate to represent the shear deformation effects. The noteworthy feature of this theory is that the transverse shear stresses can be obtained directly from the use of constitutive relations with excellent accuracy, satisfying the shear stress free conditions on the top and bottom surfaces of the beam. Hence, the theory obviates the need of shear correction factor. Governing differential equations and boundary conditions are obtained by using the principle of virtual work. The thick cantilever isotropic beams are considered for the numerical studies to demonstrate the efficiency of the. Results obtained are discussed critically with those of other theories.

**Keywords:**
Trigonometric shear deformation,
thick beam,
flexure,
principle of virtual work,
equilibrium equations,
stress.

##### 1473 A New Developed Formula to Determine the Shear Buckling Stress in Welded Aluminum Plate Girders

**Authors:**
Badr Alsulami,
Ahmed S. Elamary

**Abstract:**

This paper summarizes and presents main results of an in-depth numerical analysis dealing with the shear buckling resistance of aluminum plate girders. The studies conducted have permitted the development of a simple design expression to determine the critical shear buckling stress in aluminum web panels. This expression takes into account the effects of reduction of strength in aluminum alloys due to welding process. Ultimate shear resistance (USR) of plate girders can be obtained theoretically using Cardiff theory or Hӧglund’s theory. USR of aluminum alloy plate girders predicted theoretically using BS8118 appear inconsistent when compared with test data. Theoretical predictions based on Hӧglund’s theory, are more realistic. Cardiff theory proposed to predict the USR of steel plate girders only. Welded aluminum alloy plate girders studied experimentally by others; the USR resulted from tests are reviewed. Comparison between the test results with the values obtained from Hӧglund’s theory, BS8118 design method and Cardiff theory performed theoretically. Finally, a new equation based on Cardiff tension-field theory, proposed to predict theoretically the USR of aluminum plate girders.

**Keywords:**
Shear resistance,
Aluminum,
Cardiff theory,
Hӧglund's theory,
Plate girder.

##### 1472 Using Information Theory to Observe Natural Intelligence and Artificial Intelligence

**Authors:**
Lipeng Zhang,
Limei Li,
Yanming Pearl Zhang

**Abstract:**

**Keywords:**
Natural intelligence,
artificial intelligence,
creativity,
information theory.

##### 1471 Flexure of Simply Supported Thick Beams Using Refined Shear Deformation Theory

**Authors:**
Yuwaraj M. Ghugal,
Ajay G. Dahake

**Abstract:**

A trigonometric shear deformation theory for flexure of thick beams, taking into account transverse shear deformation effects, is developed. The number of variables in the present theory is same as that in the first order shear deformation theory. The sinusoidal function is used in displacement field in terms of thickness coordinate to represent the shear deformation effects. The noteworthy feature of this theory is that the transverse shear stresses can be obtained directly from the use of constitutive relations with excellent accuracy, satisfying the shear stress free conditions on the top and bottom surfaces of the beam. Hence, the theory obviates the need of shear correction factor. Governing differential equations and boundary conditions are obtained by using the principle of virtual work. The thick simply supported isotropic beams are considered for the numerical studies to demonstrate the efficiency of the results obtained is discussed critically with those of other theories.

**Keywords:**
Trigonometric shear deformation,
thick beam,
flexure,
principle of virtual work,
equilibrium equations,
stress.

##### 1470 Personalized Learning: An Analysis Using Item Response Theory

**Authors:**
A. Yacob,
N. Hj. Ali,
M. H. Yusoff,
M. Y. MohdSaman,
W. M. A. F. W. Hamzah

**Abstract:**

Personalized learning becomes increasingly popular which not be restricted by time, place or any other barriers. This study proposes an analysis of Personalized Learning using Item Response Theory which considers course material difficulty and learner ability.The study investigates twenty undergraduate students at TATI University College, who are taking programming subject. By using the IRT,it was found that, finding the most appropriate problem levels to each student include high and low level test items together is not a problem. Thus, the student abilities can be asses more accurately and fairly. Learners who experience more anxiety will affect a heavier cognitive load and receive lower test scores.Instructors are encouraged to provide a supportive learning environment to enhance learning effectiveness because Cognitive Load Theory concerns the limited capacity of the brain to absorb new information.

**Keywords:**
Analysis,
Cognitive Load Theory,
Item Response Theory,
Learning,
Motivation,
Performance.

##### 1469 Understanding Physical Activity Behavior of Type 2 Diabetics Using the Theory of Planned Behavior and Structural Equation Modeling

**Authors:**
D. O. Omondi,
M. K. Walingo,
G. M. Mbagaya,
L. O. A. Othuon

**Abstract:**

Understanding patient factors related to physical activity behavior is important in the management of Type 2 Diabetes. This study applied the Theory of Planned Behavior model to understand physical activity behavior among sampled Type 2 diabetics in Kenya. The study was conducted within the diabetic clinic at Kisii Level 5 Hospital and adopted sequential mixed methods design beginning with qualitative phase and ending with quantitative phase. Qualitative data was analyzed using grounded theory analysis method. Structural equation modeling using maximum likelihood was used to analyze quantitative data. The common fit indices revealed that the theory of planned behavior fitted the data acceptably well among the Type 2 diabetes and within physical activity behavior {¤ç2 = 213, df = 84, n=230, p = .061, ¤ç2/df = 2.53; TLI = .97; CFI =.96; RMSEA (90CI) = .073(.029, .08)}. This theory proved to be useful in understanding physical activity behavior among Type 2 diabetics.

**Keywords:**
Physical activity,
Theory of Planned Behavior,
Type2 diabetes,
Kenya.

##### 1468 A Multi-Signature Scheme based on Coding Theory

**Authors:**
Mohammed Meziani,
Pierre-Louis Cayrel

**Abstract:**

**Keywords:**
Post-quantum cryptography,
Coding-based cryptography,
Digital signature,
Multisignature scheme.