scholarly journals Thinking about Entry of Firms: A Theoretical Discussion

2016 ◽  
Vol 9 (2) ◽  
pp. 46 ◽  
Author(s):  
Christian Garavaglia
Keyword(s):  
Interdisciplinary Research ◽  
International Entrepreneurship ◽  
Point Of View ◽  
Theoretical Point ◽  
Theoretical Discussion ◽  
Industry Life Cycle ◽  
Theoretical Approaches ◽  
Long Run ◽  
Role Of Information

<p class="abstract">This paper analyses the factors that play a role in determining entry of new firms into markets from a theoretical point of view. We analyse the traditional interpretation of entry as a mechanism of re-equilibrating profits towards their long-run level. Then, we concentrate on other theoretical approaches, showing how the characteristics of technological innovation, the endowment of skills and competencies of the entrants, the role of information signals, the phases of the industry life cycle, the sociological concepts of legitimization and competition, and the psychological aspects might play fundamental roles in explaining new entry. The paper debates possible cross-fertilizations among theories: The discussion results in some fruitful intertwinements among the different relevant features about entry and spawns new collaborative and interdisciplinary research to create additional knowledge about entry. Insights about international entrepreneurship (IE) are also discussed.</p>

scholarly journals Verbena officinalis Verbenaceae (Lamiales): a new plant model system for phyllotaxis research

2021 ◽  
Author(s):  
Beata Zagórska-Marek ◽  
Magdalena Turzańska ◽  
Klaudia Chmiel
Keyword(s):  
Vascular System ◽  
Cumulative Effect ◽  
Point Of View ◽  
Theoretical Point ◽  
Inflorescence Axis ◽  
Organ Identity ◽  
Lateral Organ ◽  
Complex Relationships ◽  
Secondary Transitions

AbstractPhyllotactic diversity and developmental transitions between phyllotactic patterns are not fully understood. The plants studied so far, such as Magnolia, Torreya or Abies, are not suitable for experimental work, and the most popular model plant, Arabidopsis thaliana, does not show sufficient phyllotactic variability. It has been found that in common verbena (Verbena officinalis L.), a perennial, cosmopolitan plant, phyllotaxis differs not only between growth phases in primary transitions but also along the indeterminate inflorescence axis in a series of multiple secondary transitions. The latter are no longer associated with the change in lateral organ identity, and the sequence of phyllotactic patterns is puzzling from a theoretical point of view. Data from the experiments in silico, confronted with empirical observations, suggest that secondary transitions might be triggered by the cumulative effect of fluctuations in the continuously decreasing bract primordia size. The most important finding is that the changes in the primary vascular system, associated with phyllotactic transitions, precede those taking place at the apical meristem. This raises the question of the role of the vascular system in determining primordia initiation sites, and possibly challenges the autonomy of the apex. The results of this study highlight the complex relationships between various systems that have to coordinate their growth and differentiation in the developing plant shoot. Common verbena emerges from this research as a plant that may become a new model suitable for further studies on the causes of phyllotactic transitions.

scholarly journals Modeling and theoretical description of magnetic hybrid materials—bridging from meso- to macro-scales

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Andreas M. Menzel ◽  
Hartmut Löwen
Keyword(s):  
Colloidal Particles ◽  
Colloidal Particle ◽  
Theoretical Description ◽  
Point Of View ◽  
Material Behavior ◽  
Theoretical Point ◽  
Mechanical Stiffness ◽  
Theoretical Approaches ◽  
Theoretical Predictions ◽  
Particle Level

Abstract Magnetic gels and elastomers consist of magnetic or magnetizable colloidal particles embedded in an elastic polymeric matrix. Outstanding properties of these materials comprise reversible changes in their mechanical stiffness or magnetostrictive distortions under the influence of external magnetic fields. To understand such types of overall material behavior from a theoretical point of view, it is essential to characterize the substances starting from the discrete colloidal particle level. It turns out that the macroscopic material response depends sensitively on the mesoscopic particle arrangement. We have utilized and developed several theoretical approaches to this end, allowing us both to reproduce experimental observations and to make theoretical predictions. Our hope is that both these paths help to further stimulate the interest in these fascinating materials.

scholarly journals The female characters in Branislav Nušić's and Stefan Kostov's selected comedies

Bastina ◽  
2020 ◽  
pp. 95-109
Author(s):  
Đurđina Isić
Keyword(s):  
Small Town ◽  
Point Of View ◽  
Theoretical Point ◽  
Female Characters ◽  
Modern Age ◽  
The Social ◽  
The World ◽  
The Subject ◽  
Bereaved Family

The paper presents the results of research that included comparative study of the place and role of female characters in selected and representative comedies by Serbian comedigrapher Branislav Nušić (eng. MP, Suspicious person, Mrs Minister, Bereaved family, Dr, Deceased; srb. Narodni poslanik, Sumnjivo lice, Ožalošćena porodica, Dr, Pokojnik, Vlast) and Bulgarian comedigrapher Stefan Kostov (eng. Gold mine, Golemanov, Grasshoppers, Nameless comedy; blg. Zlamnama mina, Golemanov, Skakalci, Komediâ bez ime) in order to find similarities and differences in the process of comedigraphic shaping of female characters in the work of these two authors. The subject of the research was viewed primarily from a literary-theoretical point of view, and the dominant methods of study were comparative and analytical-synthetic. During the research, there was a differentiation of female characters in accordance with their motivational structures, psychological assemblies and the nature of the place and the role they play in the social environment in which they are located. Therefore, we can distinguish female characters who live in the province and who are fully representative of the small-town spirit, female characters who live in the capital and are a symbol of the modern age and female characters who dwell in the capital, but in fact, deeply down still carry a small-town view of the world. The structure of this paper is in line with this distinction. Conclusions made at the end of the study show that the representation of female characters in analyzed comedies of both comedigaphers is highly similar in its nature.

The Role of Business Schools in Marketing Education

2021 ◽  
pp. 42-56
Author(s):  
Andre Vilares Morgado
Keyword(s):  
Business Schools ◽  
Marketing Research ◽  
Point Of View ◽  
Theory And Practice ◽  
Theoretical Point ◽  
Marketing Theory ◽  
Marketing Education ◽  
Inductive Approach

Business schools play a key role in training marketing professionals. However, there is a strong divide between the expectations held by marketing professionals and those held in academia. This article considers this phenomenon from a theoretical point of view and explores its causes. The author argues that business schools are able to play a key role in bridging theory and practice in marketing. The article closes by offering several suggestions for how business schools might increase the relevance of marketing research while reducing the gap between marketing theory and practice. In particular, the article suggests the adoption of an inductive approach to research and offers a set of policies that business schools can implement in order to close this gap.

scholarly journals ROLE OF GENERALIZED COSMIC CHAPLYGIN GAS IN ACCELERATING UNIVERSE: A FIELD THEORETICAL PRESCRIPTION

2013 ◽  
Vol 28 (22) ◽  
pp. 1350102 ◽  
Author(s):  
PRABIR RUDRA
Keyword(s):  
Dark Energy ◽  
Chaplygin Gas ◽  
Point Of View ◽  
Accelerating Universe ◽  
Theoretical Point ◽  
Modified Chaplygin Gas ◽  
Statefinder Parameters ◽  
Generalized Cosmic Chaplygin Gas ◽  
The Given

In this paper, we investigate the role played by dark energy (DE) in the form of Generalized cosmic Chaplygin gas in an accelerating universe described by FRW cosmology. We have tried to describe the model from the theoretical point of view of a field, by introducing a scalar field ϕ and a self-interacting potential V(ϕ). The corresponding expressions for the field are obtained for the given model. Statefinder parameters have been used to characterize the dark energy model. Plots have been generated for characterizing different phases of universe diagrammatically and a comparative study is performed with the Modified Chaplygin gas model. As an outcome of the study, Generalized cosmic Chaplygin gas is identified as a much less constrained form of dark energy as compared to modified Chaplygin gas.

scholarly journals Theoretical Assessment of Thermodynamic Stability in Nanocrystalline Metallic Alloys

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3408 ◽  
Author(s):  
Antonio Mario Locci
Keyword(s):  
Thermodynamic Stability ◽  
Theoretical Description ◽  
Point Of View ◽  
Theoretical Point ◽  
Qualitative Comparison ◽  
Theoretical Approaches ◽  
Model Predictions ◽  
Cr System ◽  
Experimental Findings ◽  
Theoretical Assessment

Thermal stability in nanocrystalline alloys has been extensively explored while using both experimental and theoretical approaches. From the theoretical point of view, the vast majority of the models proposed in the literature have been implicitly limited to immiscible or dilute systems and thus lack the necessary generality to make predictions for different alloying interactions and in the case of intermetallic compounds formation. In this work, a general theoretical description for the case of binary W-based alloys is presented. It is shown that a critical value Ω ∗ of the interaction energy in the grain boundary Ω ( g b ) exists, such that the condition Ω ( g b ) < Ω ∗ can be regarded as a criterion for thermodynamic stability assessment. A procedure for calculating the value of Ω ∗ for each specific alloy is illustrated. A preliminary qualitative comparison between the model predictions and properly selected experimental findings taken from the literature and related to the W-Cr system is also provided.

Silicides and Rapid Thermal Annealing

1985 ◽  
Vol 52 ◽  
Author(s):  
F. M. d'Heurle ◽  
R. T. Hodgson ◽  
C. Y. Ting
Keyword(s):  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Point Of View ◽  
Theoretical Point

ABSTRACTIn the first part of this paper the role of rapid thermal annealing in sulicide processing is viewed from a theoretical point of view with respect to what is known about metal-silicon reactions. The second part is a brief survey of the quickly expanding literature on the rapid thermal annealing of silicides. Whereas RTA does not appear to solve all, or perhaps even any, of the problems encountered in the use of silicides, it is concluded that RTA presents a number of definite advantages.

scholarly journals The Role of Gravitational Instabilities in the Feeding of Supermassive Black Holes

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Giuseppe Lodato
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
High Redshift ◽  
Supermassive Black Holes ◽  
Point Of View ◽  
Accretion Discs ◽  
Theoretical Point ◽  
Interstellar Gas ◽  
Massive Black Hole

I review the recent progresses that have been obtained, especially through the use of high-resolution numerical simulations, on the dynamics of self-gravitating accretion discs. A coherent picture is emerging, where the disc dynamics is controlled by a small number of parameters that determine whether the disc is stable or unstable, whether the instability saturates in a self-regulated state or runs away into fragmentation, and whether the dynamics is local or global. I then apply these concepts to the case of AGN discs, discussing the implications of such evolution on the feeding of supermassive black holes. Nonfragmenting, self-gravitating discs appear to play a fundamental role in the process of formation of massive black hole seeds at high redshift ( 10–15) through direct gas collapse. On the other hand, the different cooling properties of the interstellar gas at low redshifts determine a radically different behaviour for the outskirts of the accretion discs feeding typical AGNs. Here the situation is much less clear from a theoretical point of view, and while several observational clues point to the important role of massive discs at a distance of roughly a parsec from their central black hole, their dynamics is still under debate.

Pychiatrists and Legal Issues in Dementia Care

2017 ◽  
Vol 41 (S1) ◽  
pp. S37-S37
Author(s):  
M.M. Carrasco
Keyword(s):  
Mental Disorders ◽  
Social Problems ◽  
Point Of View ◽  
Psychotic Symptoms ◽  
Theoretical Point ◽  
Behavioral Disturbances ◽  
The Family ◽  
Competing Interest ◽  
The Many

During more than half a century, Psychiatry has extensively accepted a biomedical model studying mental disorders (including schizophrenia, affective disorders and the large group of stress-related disorders, including anxiety disorder. Thus, the classical dichotomy between functional and organic psychiatric disorders is obsolete and from a theoretical point of view there should be no obstacle for Psychiatry to deal with the study of dementias from gene to clinical levels using empirical methods, including neurotransmitters and scanning techniques. However, in many European countries, the dementias have been claimed as belonging primarily to Neurology, leaving the role of psychiatrists to treat psychotic symptoms and bizarre behavioral disturbances.However, psychiatrists have a long tradition of detailed psychopathological description and great skill in coping with the many psychological, ethical and social problems that are such important features of mental disorders and particularly the dementias, and so, the specific skills of psychiatrists will certainly be warranted in managing the many significant psychological and social problems of the patient both within the family and in society. The discussion must overcome the sterile debate between specialties to focus on the skills needed to adequately address the needs of patients with dementia and their caregivers.Disclosure of interestThe author has not supplied his declaration of competing interest.

scholarly journals VIOLENCIA ESCOLAR Y DE PAREJA EN LA ADOLESCENCIA. EL PAPEL DE LA SOLEDAD

2017 ◽  
Vol 2 (1) ◽  
pp. 77
Author(s):  
Pepa Cuesta Roldán
Keyword(s):  
Correlation Analysis ◽  
Human Development ◽  
Dating Violence ◽  
Adolescent Girls ◽  
Ecological Model ◽  
Point Of View ◽  
Theoretical Point ◽  
Study Participants ◽  
Violencia Escolar

Abstract.SCHOOL AND DATING VIOLENCE IN ADOLESCENCE. THE ROLE OF LONELINESSThe aim of this study was to carry out a first approach to the analysis of the role of loneliness in school and dating violence in adolescence. It is considered that both violence, together with loneliness, are reasons of concern and interest for both researchers and professionals, as well as being scarce the work that exists on both violence. From the theoretical point of view, the ecological model of human development is assumed as a guide and orientation. The study participants were 1671 subjects, 49.73% boys and 50.27% adolescent girls, aged 14 to 18 years of age (M = 15.63, SD = 1.31). The results of the correlation analysis indicate that there is an association between school and dating violence. In addition, significant differences were found between boys and girls in terms of loneliness, since while in boys it is a factor that correlates with both variables, in girls there are hardly any significant correlations with the dimensions of school or dating violence.Keywords: violence, adolescence, gender, loneliness.Resumen.El objetivo del presente trabajo fue, realizar un primer acercamiento al análisis del papel de la soledad en la violencia escolar y de pareja en la adolescencia. Se considera que los dos tipos de violencia, junto con la variable, soledad, son motivos de preocupación e interés tanto para investigadores como para profesionales, además de ser escasos los trabajos que existen sobre ambas violencias. Desde el punto de vista teórico, se asume como guía y orientación el modelo ecológico del desarrollo humano. Los participantes del estudio fueron 1671 sujetos, 49.73% chicos y 50.27% chicas adolescentes escolarizados de 14 a 18 años de edad (M =15.63; DT = 1.31). Los resultados del análisis de las correlaciones, señalan que existe una asociación entre la violencia escolar y la de pareja. Además, se encontraron diferencias significativas entre chicos y chicas en cuanto a la variable soledad, ya que mientras que en los chico, es un factor que correlaciona con ambas variables, en las chicas apenas existen correlaciones significativas con las dimensiones de la violencia escolar o de pareja.Palabras clave: violencia, adolescencia, género, soledad.

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