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Article
Publication date: 24 July 2007

J. Smirnova, L. Silva, B. Monasse, J‐M. Haudin and J‐L. Chenot

This paper sets out to show the feasibility of the genetic algorithm inverse method for the determination of the parameters of crystallization kinetics laws in isothermal and…

Abstract

Purpose

This paper sets out to show the feasibility of the genetic algorithm inverse method for the determination of the parameters of crystallization kinetics laws in isothermal and non‐isothermal conditions, using multiple experiments.

Design/methodology/approach

The mathematical model for crystallization kinetics determination and the numerical methods of its resolution are introduced. Crystallization kinetic parameters determined by approximate physical analysis and the inverse genetic algorithm method are presented. Injection molding simulations taking into account crystallization are performed using the finite element method.

Findings

It is necessary to perform the optimization on two parameters, transformed volume fraction and number of spherulites to obtain correct results. It is possible to use results from different samples, in spite of the dispersion of some values.

Research limitations/implications

Experimental data for isothermal and non‐isothermal conditions were used and obtained good results for the parameters of crystallization kinetics laws from which the evolutions of overall crystallization kinetics and crystalline microstructure were deduced. Nevertheless, the dispersion of the experimental data concerning the number of spherulites obtained with different samples is important. The evolution of the number of spherulites is required for the optimization to get correct results.

Practical implications

An important result of this work is that the genetic algorithm optimization can be applied to this problem where the experiments cannot be performed with a single sample and the experimental data for the number of spherulites have low precision. Even if only the crystallization kinetics was considered, the feasibility in molding simulation has been shown.

Originality/value

Simulation of crystallization in injection molding is very important for a later prediction of the end‐use properties.

Details

Engineering Computations, vol. 24 no. 5
Type: Research Article
ISSN: 0264-4401

Keywords

Book part
Publication date: 13 December 2023

Bobbi-Jo Wathen, Patrick D. Cunningham, Paul Singleton, Dejanell C. Mittman, Sophia L. Ángeles, Jessica Fort, Rickya S. F. Freeman and Erik M. Hines

School counselors are committed to serving students' social-emotional, postsecondary, and academic needs while they navigate primary and secondary school (American School

Abstract

School counselors are committed to serving students' social-emotional, postsecondary, and academic needs while they navigate primary and secondary school (American School Counselor Association, 2019). Much has been said about the ways in which school counselors can impact postsecondary outcomes and social emotional health. It is important that we also address the ways school counselors can impact positive academic outcomes as it is intertwined in postsecondary options and success. For Black males, academic success has traditionally been met with systemic barriers (i.e., school-to-prison pipeline, lower graduation rates, lower incomes, higher unemployment rates, and lower college going rates (National Center for Edcuation Statisitics, 2019a, 2019b, 2020a, 2020b) and low expectations. School counselors are charged to be leaders and change agents for social justice and equity in our schools by the American School Counselor Association (ASCA, 2019) and can impact systemic change. This chapter will explore ways in which school counselors can impact positive academic outcomes for Black males. School counselors as change agents and advocates are positioned to make a real impact for Black male academic success. The authors will also provide some recommendations and best practices for elementary, middle, and high school counselors as they work with students, teachers, and families from an anti-deficit model as outlined by Harper (2012).

Details

Black Males in Secondary and Postsecondary Education
Type: Book
ISBN: 978-1-80455-578-1

Keywords

Book part
Publication date: 3 September 2020

Sophia L. Ángeles, Lucas Cone, Sarah Jean Johnson and Marjorie Faulstich Orellana

In this chapter, the authors illustrate how the use of ethnographic methods as a mode of cultural inquiry can support educators in developing students’ competencies to navigate in…

Abstract

In this chapter, the authors illustrate how the use of ethnographic methods as a mode of cultural inquiry can support educators in developing students’ competencies to navigate in and across cultural contexts. The authors report on an undergraduate service learning course held at the University of California, Los Angeles, which combines attendance in a university class with weekly visits to a play-based after-school club located in a multicultural immigrant community. The chapter draws examples from the required field notes written by undergraduate students about their visits to the after-school club, as well as oral comments by the students gathered through interviews. As a way of offering practical engagement in the lifeworlds of the demographically diverse children attending the after-school club, the authors apply examples from the undergraduates’ statements to consider the value of the course – and the engagement it requires with anthropological methods and multilingual and multicultural children – in supporting students’ cultural competence. In doing so, the authors demonstrate what they believe to be a worthwhile approach for cultivating cultural competence in higher education in a socially just and culturally responsive manner.

Details

Cultural Competence in Higher Education
Type: Book
ISBN: 978-1-78769-772-0

Keywords

Content available
Book part
Publication date: 3 September 2020

Abstract

Details

Cultural Competence in Higher Education
Type: Book
ISBN: 978-1-78769-772-0

Content available
Book part
Publication date: 13 December 2023

Abstract

Details

Black Males in Secondary and Postsecondary Education
Type: Book
ISBN: 978-1-80455-578-1

Article
Publication date: 2 January 2024

Nitin Patwa, Monika Gupta and Amit Mittal

This paper aims to explain how Web 2.0, social connectedness online, has created incredible new business options. This research’s primary goal is to help businesses use these…

Abstract

Purpose

This paper aims to explain how Web 2.0, social connectedness online, has created incredible new business options. This research’s primary goal is to help businesses use these resources more effectively and perform better.

Design/methodology/approach

Variance-based structural equation modeling with the ADANCO program was used to examine the data. ADANCO software is used explicitly for variance-based structural equation modeling. To evaluate research models and test hypotheses, partial least square path modeling is used.

Findings

Theories encompassing social support and related approaches to “word of mouth” online, electronic purchasing and virtual communities mediated by technological platforms are the foundational frameworks for this research piece. It then produces a statistical model that enables users to predict how social commerce (s-commerce) building blocks, including forums, communities, ratings and reviews and recommendations, assist businesses in introducing innovative strategies to win in the digital markets. The results necessarily focus on trust, an essential component of e-commerce. Reciprocally, the study reverses engineer’s trust through the constructs of this moment mentioned.

Research limitations/implications

The present study describes the scope of empirical testing and validation of this framework and assists practitioners in further strengthening s-commerce strategy, an emerging and essential platform in the e-commerce industry.

Originality/value

Research highlights the dearth of current analysis in such conceptual domains while generating novel research insights aimed at e-commerce and digital business. From the viewpoint of potential and recurring customers who interact with online communities and product offerings, the study captures the essence of human interactions, often known as trade relationships, online.

Details

Global Knowledge, Memory and Communication, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9342

Keywords

Article
Publication date: 10 June 2021

Marcelo Leporati, Alfonso Jesús Torres Marin and Sergio Roses

The purpose of this paper is to study the case of Chile and identify the internal factors that lead to senior (+55 years old) entrepreneurship, either by necessity or opportunity…

Abstract

Purpose

The purpose of this paper is to study the case of Chile and identify the internal factors that lead to senior (+55 years old) entrepreneurship, either by necessity or opportunity, compared to that in other age groups.

Design/methodology/approach

The analysis is based on the adult population survey of the global entrepreneurship monitor between 2012 and 2016 and uses a logistic regression model that applies different variables to total early-stage entrepreneurial activity by necessity and opportunity.

Findings

Education, human and social capital development, gender and prior experience as an entrepreneur are internal factors that affect entrepreneurial activity with different weights and directions for people over 55 years old in Chile, either by necessity or opportunity. Further, certain factors exhibited by other age groups in the country explain entrepreneurship.

Research limitations/implications

This study does not consider external perspectives on how context influences entrepreneurial intentions.

Practical implications

This paper represents a first step to understanding the factors that governments should consider when designing policies to support entrepreneurial activity in the senior demographic sector, considering differences in motivation by necessity or opportunity. In addition, this study contributes to the development of knowledge regarding senior entrepreneurship in Chile and to the identification of best practices that could be used in other regions.

Originality/value

This report is the first to focus on the motivations of senior entrepreneurs in Chile by quantifying the effects of different factors.

Details

European Business Review, vol. 33 no. 6
Type: Research Article
ISSN: 0955-534X

Keywords

Article
Publication date: 12 October 2015

Fayçal Boukamcha

This paper aims to clarify the impact of the entrepreneurial training on a Tunisian trainee’s entrepreneurial cognitions and intention. An interactive cognitive perspective was…

2240

Abstract

Purpose

This paper aims to clarify the impact of the entrepreneurial training on a Tunisian trainee’s entrepreneurial cognitions and intention. An interactive cognitive perspective was adopted to test the interaction effect between the entrepreneurial cognitions: the perceived entrepreneurial self-efficacy, the perceived entrepreneurial feasibility and entrepreneurial desirability. A research model was built showing several relationships between entrepreneurial training, cognitions and intention.

Design/methodology/approach

A survey was conducted on a convenience sample of 240 participants in four business incubators. The maximum-likelihood test was used as a structural equation modeling method to test the model.

Findings

The results show the importance of the entrepreneurial training in the development of entrepreneurial cognitions. Further, the findings, to some extent, validate the interaction between the entrepreneurial cognitive patterns. However, entrepreneurial intention was only predicted through the entrepreneurial desirability. Several implications are discussed at the end of this paper.

Practical implications

The findings seem interesting insofar, as they show the importance of entrepreneurial trainings in the entrepreneurial intention development through the enhancement of desirability. This process can be triggered by a training program that contains case studies, success stories and conferences to make the youth enthusiastic about self-employment.

Originality/value

The significant impact of the entrepreneurial training on trainees’ cognitions should encourage governments and incubators to promote entrepreneurial training programs to enhance the youths’ willingness to create their own businesses. The findings in this paper seem interesting insofar as they show the importance of entrepreneurial trainings in the entrepreneurial intention development through the enhancement of desirability. This process can be triggered by a training program that contains case studies, success stories and conferences to make the youth enthusiastic about self-employment.

Details

European Business Review, vol. 27 no. 6
Type: Research Article
ISSN: 0955-534X

Keywords

Article
Publication date: 3 February 2020

Kais Ben-Ahmed

Little is known about the relationship between an entrepreneur and his business coach, as very few studies have examined this question, in Tunisia or internationally. The purpose…

Abstract

Purpose

Little is known about the relationship between an entrepreneur and his business coach, as very few studies have examined this question, in Tunisia or internationally. The purpose of this paper is to develop a better understanding of the relationship that Tunisian entrepreneur has with his business coach, through the study of factors, which are decisive in the success of this relationship, especially trust, communication and commitment.

Design/methodology/approach

This study used a questionnaire to gather information about entrepreneurs who created their small businesses between 2015 and 2018. First, factor analysis was conducted on several variables to extract the underlying dimensions. Then, a bivariate analysis was performed to identify and analyse which factors are responsible for the success of the relationship between the entrepreneur and his business coach.

Findings

The findings of the study showed that the factors identified as being critical to the success of the relationship between Tunisian entrepreneur and his business coach, include know-how, the give-and-take strategy, meeting needs of the entrepreneur, sharing knowledge and the involvement of the coach in the project during the business creation process. However, limited trust, comprehensive listening and mutuality of relationships were not statistically significant.

Research limitations/implications

Whilst study results are partially consistent with the literature, it is surprising that some factors as comprehensive listening, knowledge sharing and relationship mutuality do not really consolidate the entrepreneur's relationship with his coach. By harnessing this result, it is desirable that a more in-depth examination of success factors be carried out to allow more accurate inference to be drawn from the survey.

Practical implications

Whilst study results are partially consistent with findings from the literature, it is surprising that some factors, as comprehensive listening, knowledge sharing and relationship mutuality does not significantly contribute to the success of the relationship between Tunisian entrepreneur and his business coach. Taking this into account, it would be desirable that a more in-depth examination of success factors be carried out to allow more accurate inference to be drawn from the survey.

Originality/value

The paper contributes by analysing critical success factors of the relationship between an entrepreneur and his business coach in a less well-researched area since very few studies have examined this question, in Tunisia or internationally. Conceptually, it offers a better understanding of how the entrepreneur and his coach behave during the business creation process.

Details

Global Knowledge, Memory and Communication, vol. 69 no. 6/7
Type: Research Article
ISSN: 2514-9342

Keywords

Article
Publication date: 23 September 2019

Olfa Riahi and Walid Khoufi

The purpose of this paper is to discern the impact of main behavioral factors that could affect the decision of adopting IFRS in developing countries (DCs). In other words, this…

1118

Abstract

Purpose

The purpose of this paper is to discern the impact of main behavioral factors that could affect the decision of adopting IFRS in developing countries (DCs). In other words, this work looks to identify the different variables that are likely to influence the adoption of IFRS in these countries.

Design/methodology/approach

The methodological orientation of this research is to highlight and analyze the correlation between the cited factors and the IFRS adoption in DCs. Tested models are functions of logistic regression. To assess the parameters of these functions, the commonly used method is not that of ordinary least square but the maximum likelihood technique. In short, this study followed a hypothetical-deductive methodology by referring to the application of a logistic regression for each of the variables presumed to be analyzed. The authors implement this empirical model by using the neo-institutional approach and basing on a sample of 108 DCs.

Findings

The empirical results show that there exists a bidirectional causal relationship between the majority of the developed behavioral variables and the decision of whether adopting or unadopting IFRS by DCs. They also indicate through multivariate analysis that the selection of IFRS by DCs is primarily legitimized by institutional and social pressures (institutional isomorphism).

Research limitations/implications

It is essential to indicate that some limits might be assigned to the study. They are attached principally to the use of a dichotomous dependent variable which presents a restriction in a sense where the robust inequality at the level of the numbers of the countries of sub-samples can relatively weaken the findings. There are also few studies that jointly analyze the behavioral dimensions within a country and the adoption of IFRS. Institutional theory emanated from the research has proved useful in escaping this limit.

Practical implications

These empirical insights are of particular interest to local accounting standard setters of the selected countries since they can provide a better discernment of factors that can encourage the adoption of IFRS. Indeed, the research can be a reference for governments to better identify the economic, political and institutional obstacles that have an impact on behaviors which could compel countries to flee the adoption of IFRS. This paper will also be helpful for future research studying the links between human behavior and accounting in a general way. It should be noted that the results will be significant for future studies looking for real behavioral factors that drive a country to adopt an accounting framework. The studies will be able to use the empirical variables as a starting point and then they can extract new measures to identify the impact of behavior on decisions to adopt any standards.

Originality/value

At the present study, the authors strive to provide input to the literature by focusing on the determinants of the choice of an accounting practice in a DC reverberating to a new dimension which is the behavioral attribute.

Details

Journal of Applied Accounting Research, vol. 20 no. 4
Type: Research Article
ISSN: 0967-5426

Keywords

1 – 10 of over 1000