Recent progress in prominence seismology

2005 ◽  
Vol 364 (1839) ◽  
pp. 405-415 ◽  
Author(s):  
José Luis Ballester
Keyword(s):  
Small Amplitude ◽  
Point Of View ◽  
Future Research ◽  
Theoretical Point ◽  
Structure And Properties ◽  
Research Topics ◽  
Solar Prominences ◽  
Different Types ◽  
Set Up ◽  
Local Nature

Prominence seismology is a rapidly developing topic which seeks to infer the internal structure and properties of solar prominences from the study of their oscillations. An extense observational background about oscillations in quiescent solar prominences has been gathered during the last 70 years. These observations point out the existence of two different types of oscillations: flare-induced oscillations (winking filaments) which affect the whole prominence and are of large amplitude and small amplitude oscillations which seem to be of local nature. From the theoretical point of view, few models have been set up to explain the phenomenon of winking filaments while, on the contrary, for small amplitude oscillations a large number of models trying to explain the observed features have been proposed. Here, recent theoretical and observational developments on both types of oscillations are reviewed, and suggestions about future research topics which should provide us with a more in-depth knowledge of solar prominences are made.

scholarly journals A Review on Coordination Properties of Al(III) and Fe(III) toward Natural Antioxidant Molecules: Experimental and Theoretical Insights

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2603
Author(s):  
Luana Malacaria ◽  
Giuseppina Anna Corrente ◽  
Amerigo Beneduci ◽  
Emilia Furia ◽  
Tiziana Marino ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Natural Antioxidants ◽  
Point Of View ◽  
Water Soluble ◽  
Natural Antioxidant ◽  
Theoretical Point ◽  
Structure And Properties ◽  
Coordination Properties ◽  
Soluble Molecule ◽  
Living Organisms

This review focuses on the ability of some natural antioxidant molecules (i.e., hydroxycinnamic acids, coumarin-3-carboxylic acid, quercetin, luteolin and curcumin) to form Al(III)- and Fe(III)-complexes with the aim of evaluating the coordination properties from a combined experimental and theoretical point of view. Despite the contributions of previous studies on the chemical properties and biological activity of these metal complexes involving such natural antioxidants, further detailed relationships between the structure and properties are still required. In this context, the investigation on the coordination properties of Al(III) and Fe(III) toward these natural antioxidant molecules might deserve high interest to design water soluble molecule-based metal carriers that can improve the metal’s intake and/or its removal in living organisms.

scholarly journals Difficulty in implementing continuous improvement – Rasch measurement analysis

2019 ◽  
Vol 25 (6) ◽  
pp. 1228-1250 ◽  
Author(s):  
Lidia Sanchez-Ruiz ◽  
Beatriz Blanco ◽  
Emma Diaz
Keyword(s):  
Continuous Improvement ◽  
Measurement Theory ◽  
Reliability And Validity ◽  
Rasch Measurement ◽  
Point Of View ◽  
Future Research ◽  
Theoretical Point ◽  
Content Type ◽  
Level Of Difficulty ◽  
New Perspective

Purpose The purpose of this paper is to define a general and common construct in order to measure the level of difficulty companies experience when they implement continuous improvement (CI). Additionally, a rank of barriers is obtained together with a rank of companies. Design/methodology/approach In order to achieve the objective, first, a literature review is carried out to specify the domain of the construct; second, a sample of items is selected; third a survey is carried out in companies that have already implemented CI initiatives, the results being thus limited to this population; fourth, measures are purified by analysing the reliability and validity of the measurements, and finally results are obtained. The Rasch measurement theory will be used to provide a new perspective on a mature research topic. Findings It can be concluded that a new valid construct has been defined together with a rank of CI barriers, being lack of time the main barrier. A rank of companies is also obtained which is a first step in the development of future research studies. Practical implications Managers are provided with a better understanding of the barriers that can obstruct CI implementation. Thus, the rank of CI barriers guides managers through the most common and important obstacles so that they will be able to plan better CI strategies. In addition, the rank of companies allows each company to undertake a benchmarking exercise. Originality/value This work proposes a new way of analysing the difficulty in implementing CI as a continuum, rather than as independent barriers. From a theoretical point of view, it defines a new construct and offers a rank of CI barriers together with a rank of companies based on their level of difficulty when implementing CI initiatives. This is something new, as previous studies were mainly focussed on the items side. From a practical point of view, this study offers the surveyed companies the opportunity to see how they are positioned with respect to the other companies. Moreover, this rank of companies is the foundation on which to develop further studies with a practical orientation in the future.

Establishing the Credibility of Social Web Applications

2011 ◽  
pp. 1432-1437
Author(s):  
Pankaj Kamthan
Keyword(s):  
Web 2.0 ◽  
Web Applications ◽  
Future Research ◽  
Social Web ◽  
The People ◽  
Different Types ◽  
Set Up ◽  
The Web

In recent years, there has been a steady shift in the nature of Web applications. The vehicle of this transition of Web applications is us, the people. The ability to post photographs or videos, exchange music snippets with peers, and annotate a piece of information, are but a few exemplars of this phenomenon. Indeed, the pseudonym Web 2.0 (O’Reilly, 2005) has been used to describe the apparent “socialization” of the Web. In spite of the significant prospects offered by humancentric Web applications, the mere fact that virtually anyone can set up such applications claiming to sell products and services or upload/post unscrutinized information on a topic as being “definitive,” raises the issues of credibility from a consumers’ viewpoint. Therefore, establishing credibility is essential for an organization’s reputation and for building consumers’ trust. The rest of the article is organized as follows. We first provide the background necessary for later discussion. This is followed by the introduction of a framework within which different types of credibility in the context of human-centric Web applications can be systematically addressed and thereby improved. Next, challenges and directions for future research are outlined. Finally, concluding remarks are given.

Discursive turns and critical junctures

2020 ◽  
pp. 198-213
Author(s):  
Donatella della Porta ◽  
Pietro Castelli Gattinara ◽  
Konstantinos Eleftheriadis ◽  
Andrea Felicetti
Keyword(s):  
Point Of View ◽  
Future Research ◽  
Theoretical Point ◽  
Political Debate ◽  
Citizenship Rights ◽  
Public Spheres ◽  
Critical Junctures ◽  
The Impact ◽  
Opening Up

The concluding chapter goes back to the theoretical debates presented in chapter 1, synthetizing the main empirical results of the various parts of our analysis as well as reflecting on the theoretical implications. From the theoretical point of view, the aim has been to analyze transformative events in order to trace their effects on the content and form of the debate in multiple public spheres. The research addressed discursive turns during a critical juncture that changed in the political debate. Empirically, the Charlie Hebdo controversy represented a most important moment in the assessment of collective understandings of citizenship, broadly understood as setting the boundaries of who is inside and who is outside. Opening up to future research in the field, the chapter speculates on the impact of the debate we have addressed in structuring the evolving debate over citizenship and citizenship rights.

scholarly journals Diseño y validación de una escala para evaluar el funcionamiento de las tutorías en Educación Secundaria

2019 ◽  
Vol 37 (2) ◽  
pp. 525-541 ◽  
Author(s):  
Víctor León Carrascosa ◽  
María José Fernández Díaz
Keyword(s):  
Secondary Education ◽  
Basic Education ◽  
Reliability And Validity ◽  
Point Of View ◽  
Professional Experience ◽  
Theoretical Point ◽  
Psychometric Characteristics ◽  
Four Dimensions ◽  
Different Types ◽  
Discrimination Coefficient

El desarrollo de la función tutorial es clave para la formación integral de los estudiantes. En los últimos años las investigaciones sobre este tema se centran en la educación superior relegando a segundo plano su desarrollo en la educación básica. En este sentido, el presente trabajo tiene como objetivo diseñar y validar un instrumento de medida sobre la valoración de las tutorías en Educación Secundaria Obligatoria y Posobligatoria, fundamentado teóricamente, que reúna las características psicométricas exigidas: fiabilidad, homogeneidad de los ítems y validez. La muestra del estudio está compuesta por 4254 estudiantes de Educación Secundaria Obligatoria y Postobligatoria correspondientes a los diferentes tipos de centros educativos de la Comunidad Autónoma de Madrid (CAM). A raíz de la literatura consultada y la experiencia profesional se consideraron cuatro dimensiones sobre la práctica tutorial donde se analizó la fiabilidad (Alfa de Cronbach total del instrumento: 0.929, y por dimensiones, Funciones con el alumnado: 0.868; Funciones con las familias: 0.649; Desarrollo: 0.797; Evaluación: 0.876), los valores del coeficiente de discriminación de los ítems (datos superiores a 0.2, según Hair et al., 2014) y el Análisis Factorial Confirmatorio (χ2/gl= 0.0254; CFI= 0.940; RMSEA: 0.044; PRATIO=0.894) obteniendo resultados satisfactorios. Por todo ello, el instrumento propuesto contribuye al estudio de las tutorías, tanto desde un punto de vista teórico como por sus características psicométricas relativas a su fiabilidad y validez. De igual modo, el instrumento se constituye como una herramienta de utilidad en el desarrollo de las tutorías, atendiendo las demandas y necesidades de sus estudiantes. The development of the tutorial function development is the key for an integral formation of the students. In recent years, research on this topic has been focused on higher education, relegating to a second place its development in basic education. In this sense, the objective of this work is to design and validate a measuring instrument for the assessment of tutorials in Obligatory and Post-obligatory Secondary Education, supported theoretically, that finds the required psychometric characteristics: reliability, homogeneity of the items and validity. The study sample is made up of 4254 students of Compulsory and Post-compulsory Secondary Education corresponding to different types of educational centers in Autonomous Community of Madrid (CAM). As a result of the literature consulted and the professional experience, four dimensions were considered on the tutorial practice where the reliability was analyzed (Alfa of Cronbach total of the instrument: 0.929, and by dimensions, Functions with the students: 0.868; Functions with the families: 0.649; Development: 0.797; Evaluation: 0.876), the values of the discrimination coefficient of the items (data superior to 0.2, according to Hair et al. 2014) and the Confirmatory Factorial Analysis (χ2/gl= 0.0254; CFI=0.940; RMSEA: 0.044; PRATIO=0.894) obtaining satisfactory results. For all these reasons, the proposed instrument contributes to the study of tutorials, both from a theoretical point of view and because of their psychometric characteristics relative to their reliability and validity. Similarly, the instrument constitutes a useful tool in the development of tutorials, meeting the students’ demands and needs.

Exclusive corporate philanthropy: rethinking the nexus of CSR and corporate philanthropy

2016 ◽  
Vol 12 (2) ◽  
pp. 280-294 ◽  
Author(s):  
Georg von Schnurbein ◽  
Peter Seele ◽  
Irina Lock
Keyword(s):  
Corporate Philanthropy ◽  
Point Of View ◽  
Future Research ◽  
Special Role ◽  
Theoretical Point ◽  
Bottom Line ◽  
Content Type ◽  
Different Characteristics ◽  
Relationship Of ◽  
The Relationship

Purpose The purpose of this paper is to add to a better understanding of relationship of corporate social responsibility (CSR) and corporate philanthropy. The authors argue that corporate philanthropy is exclusive to CSR because of their different characteristics. Design/methodology/approach This paper is based on a profound literature review and discusses the relationship of CSR and corporate philanthropy from a theoretical point of view. By conceptually combining the CSR pyramid and the triple bottom line approach, the authors show that corporate philanthropy has a special role outside of the classical CSR concept. Findings Four fundaments of corporate philanthropy – economic, motivational, creative and moral – are described that illustrate the importance and outstanding role of corporate philanthropy for today’s businesses. Based on these, the authors formulate three new forms of corporate giving, volunteering and foundations, which the authors subsume under the novel notion of “exclusive corporate philanthropy”. Research limitations/implications The main contribution of this paper for future research is to regard corporate philanthropy as exclusive to CSR. Future studies might, therefore, consider the different characteristics of corporate philanthropy and engage in an empirical investigation of this new type. Practical implications The model of exclusive corporate philanthropy presented in this paper provides practitioners with a better understanding of how corporate philanthropy can be rolled out today. Originality/value This paper offers a new perspective on the relationship of CSR and corporate philanthropy. Based on the economic, motivational, creative and moral characteristics of corporate philanthropy, the authors establish a clear distinction between the two concepts.

Establishing the Credibility of Social Web Applications

2010 ◽  
pp. 105-112
Author(s):  
Pankaj Kamthan
Keyword(s):  
Web 2.0 ◽  
Web Applications ◽  
Future Research ◽  
Social Web ◽  
The People ◽  
Different Types ◽  
Set Up ◽  
The Web

In recent years, there has been a steady shift in the nature of Web applications. The vehicle of this transition of Web applications is us, the people. The ability to post photographs or videos, exchange music snippets with peers, and annotate a piece of information, are but a few exemplars of this phenomenon. Indeed, the pseudonym Web 2.0 (O’Reilly, 2005) has been used to describe the apparent “socialization” of the Web. In spite of the significant prospects offered by human-centric Web applications, the mere fact that virtually anyone can set up such applications claiming to sell products and services or upload/ post unscrutinized information on a topic as being “definitive,” raises the issues of credibility from a consumers’ viewpoint. Therefore, establishing credibility is essential for an organization’s reputation and for building consumers’ trust. The rest of the article is organized as follows. We first provide the background necessary for later discussion. This is followed by the introduction of a framework within which different types of credibility in the context of human-centric Web applications can be systematically addressed and thereby improved. Next, challenges and directions for future research are outlined. Finally, concluding remarks are given.

Addressing the Credibility of Web Applications

2008 ◽  
pp. 23-28 ◽  
Author(s):  
Pankaj Kamthan
Keyword(s):  
Web Application ◽  
Web Applications ◽  
Consumer Confidence ◽  
Future Research ◽  
The Internet ◽  
Different Types ◽  
Set Up ◽  
The Web

The Internet, particularly the Web, has opened new vistas for businesses. The ability that anyone, using (virtually) any device could be reached anytime and anywhere presents a tremendous commercial prospective. In retrospect, the fact that almost anyone can set up a Web Application claiming to offer products and services raises the question of credibility from a consumers’ viewpoint. If not addressed, there is a potential for lost consumer confidence, thus significantly reducing the advantages and opportunities the Web as a medium offers. Establishing credibility is essential for an organization’s reputation (Gibson, 2002) and for building consumers’ trust (Kamthan, 1999). The rest of the article is organized as follows. We first provide the motivational background necessary for later discussion. This is followed by the introduction of a framework within which different types of credibility in the context of Web Applications can be systematically addressed and thereby improved. Next, challenges and directions for future research are outlined. Finally, concluding remarks are given.

Sensing and warning-based technology applications to improve occupational health and safety in the construction industry

2019 ◽  
Vol 26 (8) ◽  
pp. 1534-1552 ◽  
Author(s):  
Maxwell Fordjour Antwi-Afari ◽  
Heng Li ◽  
Johnny Kwok-Wai Wong ◽  
Olugbenga Timo Oladinrin ◽  
Janet Xin Ge ◽  
...  
Keyword(s):  
Occupational Health ◽  
Construction Industry ◽  
Health And Safety ◽  
Occupational Health And Safety ◽  
Future Research ◽  
Research Topics ◽  
Content Type ◽  
Current Trends ◽  
Different Types ◽  
Technology Applications

Purpose Sensing- and warning-based technologies are widely used in the construction industry for occupational health and safety (OHS) monitoring and management. A comprehensive understanding of the different types and specific research topics related to the application of sensing- and warning-based technologies is essential to improve OHS in the construction industry. The purpose of this paper is to examine the current trends, different types and research topics related to the applications of sensing- and warning-based technology for improving OHS through the analysis of articles published between 1996 and 2017 (years inclusive). Design/methodology/approach A standardized three-step screening and data extraction method was used. A total of 87 articles met the inclusion criteria. Findings The annual publication trends and relative contributions of individual journals were discussed. Additionally, this review discusses the current trends of different types of sensing- and warning-based technology applications for improving OHS in the industry, six relevant research topics, four major research gaps and future research directions. Originality/value Overall, this review may serve as a spur for researchers and practitioners to extend sensing- and warning-based technology applications to improve OHS in the construction industry.

scholarly journals Thirty Years of Research on Succession in the Field of Family Business: A Bibliometric Analysis

2021 ◽  
Vol 17 (1) ◽  
pp. 88
Author(s):  
Atar Benismael ◽  
Mohamed Nabil El mabrouki
Keyword(s):  
Bibliometric Analysis ◽  
Family Business ◽  
Scientific Literature ◽  
Future Research ◽  
Research Topics ◽  
Scientific Publications ◽  
Research Directions ◽  
Word Analysis ◽  
Different Types ◽  
Future Research Directions

Bibliometric analysis is the application of statistical methods to quantitatively analyze scientific publications. It makes it possible to evaluate the production of a laboratory, a journal or a field of research. The objective of this study is to carry out an analysis of the scientific literature published on succession in the field of family business over the last thirty years. Two different types of indicators were used. The first concerns the activity indicators, which provides information about the productivity of journals and authors. The second is about co-citation analysis which gives an idea of the links between researchers, and co-word analysis which identifies interactions and relationships between different research topics. The results obtained reveal that it is a relatively recent area of research with strong connections between authors. Gaps in the literature as well as future research directions are also presented.

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