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Nowadays, nations are rapidly changing and evolving, both because of global competitiveness and technological development. The fast change of the economies and the interconnected world has brought a more globalized world than ever. The purpose of this paper is to assess Romania (RO) and Türkiye (TR) by using a customized version of Porter’s diamond model (PDM), with an emphasis on identifying the key components of their innovation systems.

The paper uses a recognized model to unfold its structure. Based on the PDM, this paper tackles the topic of innovation systems both of RO and TR. Applying the model, a mapping of indicators representing components of the national innovation system is made possible. Besides the traditional four determinants (dimensions) of the model, the authors adapted it and added the technology conditions. Using the five dimensions, a comparison of strategical objectives is made between RO and TR.

The results show the potential for both countries to develop and embrace the innovation capacity, while there is still room for improvement in this regard. Another point is the map of innovation system components that were used for the comparison. The implications of innovation are analyzed at a strategical level, comparing the mapping with the national strategical objectives.

There are many studies using this model, however a few bring into the light the impact of innovation systems at national level. Hence, a new framework is provided to evaluate innovative systems using a selection of modern indicators. This study uses an existing model in literature, Porter’s model mapping indicators, which highlight the innovation capacity.

There is an extensive body of contemporary educational literature concerning teachers' professional development (PD), but little attention has been paid to the PD of principals, despite their vital role in improving student learning outcomes. The available literature on principals' PD deals with content and quality while mostly ignoring whether and how PD activities have an impact on leadership practices. In our study, we wanted to examine the extent to which principals perform learning-centred leadership practices and whether and how their practices are influenced by the PD programmes they have engaged in during the past twelve months.

A total of 130 Turkish principals participated in the study. Using the SEM model, we examined the direct and indirect links between principals' PD and their self-perceived learning-centred leadership practices, with self-efficacy as the mediating variable.

We found a positive, statistically significant yet weak relationship between principals' PD and their leadership practices, with self-efficacy playing a considerable mediating role.

We argue that traditional types of PD activities can contribute to the leadership practices of principals, at least in countries where school principals are not adequately prepared for principalship positions. We suggest that such activities can contribute by providing newly appointed school principals with certain basic knowledge regarding effective leadership that many principals in developing countries are missing due to the lack of pre-service training. These activities can also strengthen principals' belief in their ability to overcome school problems and improve student learning. This, in turn, could motivate them to focus more on learning-centred leadership practices.

The research aimed to examine the effects of school climate (school violence and community engagement) and resources (staff shortages and resource shortages) on job satisfaction mediated by the workload stress of school principals, using pooled data from 47 jurisdictions around the world.

This study employed a rigorous secondary analysis of principal job satisfaction using the Teaching and Learning International Survey (TALIS) 2018 dataset. The mediation analysis of structural equation modeling (SEM) performed using STATA software established a structured model by controlling region-fixed effect, principal demographic and school contextual characteristics.

This study established a model detailing the associations between school climate and resources and principal job satisfaction mediated by workload stress.

Given the crucial role of a school principal in leading school survival and success, this study may provide one timely method to enhance job satisfaction and performance of principals during a period of constant change marked by increasing job demands.

While the current knowledge in the field of educational leadership and management (EDLM) has been primarily based on research produced in English-speaking Western societies, there have been significant efforts by other societies to contribute to the knowledge production, especially during the past decade. The purpose of this paper is to identify the contribution of Turkey to the international EDLM literature by investigating the topical focus, conceptual frameworks and research designs of papers published by EDLM scholars from Turkey.

Descriptive content analysis method was employed to examine 315 empirical, review, conceptual and commentary papers published by Turkish scholars in core educational administration and Web of Science journals. The time period of the review left open-ended. However, in practical terms, it begins in the year 1994 when the first article from Turkey was published in any of the selected sources and ends at the end of 2018. Information relevant to the research was extracted from each article and was coded to facilitate quantitative analysis. Using Excel software, descriptive statistics including frequencies and percentages were provided for each research question.

Results show that Turkish EDLM scholars mostly rely on survey based quantitative research approach, employing advanced statistical techniques in the analysis of the data. However, mixed method and qualitative studies are relatively less common. Organizational behavior, school leadership and emotions stand out as most frequently used topics, while Turkish scholars are not interested in analyzing the educational outcomes such as student achievement and school improvement. Consistent with the findings related to topical foci, a large number of those who were interested in correlational studies examined the relationship between leadership roles and organizational behaviors.

The data set only included journal articles and excluded conference proceedings, books and theses/dissertations. Nevertheless, the authors believe this review adds significantly to previous reviews of local EDLM journals conducted by Turkish scholars. The authors concluded that the Turkish scholars should direct their future research to exploring and better understanding the practices of Turkish principals in schools by: diversifying their research topics; incorporating more qualitative and mixed-method designs; and taking into account specific features of the culture and educational system in Turkey.

Based on the current higher education context, reducing scholars’ teaching load, diversifying research funding opportunities, and modifying access to tenure tracks seem necessary interventions to support EDLM research with strong ties to practice and to the sociocultural context. In addition, policy changes aiming professionalization of administrative positions and establishing some forms of formal training for school principalship are needed. Such changes can help transfer the knowledge produced by the Turkish EDLM researchers to the practice and provide solutions to problems related to school administration.

This paper will add to recent effort to identify how a developing nation outside Western perspective approaches the field, and contributes to the global knowledge base.

The research literature in this field demonstrates that instructional leadership provided by principals is essential for student learning, but the question of its impact on students with high and low socioeconomic status (SES) has remained largely unexplored. In the present study, the authors focus on the moderating role of instructional leadership in the relationship between SES and achievement at both the school and student levels.

Using cross-national Programme for International Student Assessment (PISA) 2015 data, the authors fitted multilevel models to investigate whether the effect of instructional leadership on student achievement in math, science and reading varies across groups of students with the different individual as well as school SES levels.

Instructional leadership significantly moderates the relationship between school-level SES and student achievement in math, while the moderation effect for individual SES and instructional leadership is not significant for any subject.

This study calls for more research on the moderation role of leadership in the relationship between SES and student achievement, with a specific focus on the integrated models that include the social justice aspect of school leadership.

The authors conclude that while instructional leadership might be beneficial in reducing the achievement gaps between schools, it may not make much difference in terms of reducing the disparity between different SES groups within schools.

This study sought to provide an understanding of what a culturally contextualized model of instructional leadership looks like in Turkey, and how this differs from models disseminated in the USA.

This study employed qualitative meta-synthesis to systematically review the full set of 22 qualitative studies of instructional leadership in Turkey. A systematic synthesis strategy was applied to code the findings from each study to develop broad themes that describe key domains of principal instructional leadership practice.

The results showed that instructional leadership of school principals in Turkey is composed of four main dimensions and ten subdimensions. The main dimensions include: (1) emphasis on national goals and competition, (2) maintaining the learning environment, (3) motivating and enabling teachers, and (4) monitoring program alignment and test results.

While broad dimensions of instructional leadership described in the international literature are relevant in Turkey, some practices used to enact those dimensions appear poorly aligned with the institutional–cultural context of Turkish schools. Thus, findings from this study support the assertion that the specific practices used to measure, assess and practice instructional leadership must be adapted to the context of a specific society.

This paper contributes to international efforts to develop a globally validated knowledge base in educational leadership and management.

The purpose of this paper is to develop new four-dimensional (4D) hyperchaotic system by adding another state variable and linear controller to three-dimensional T chaotic dynamical systems. Its dynamical analyses, circuit experiment, control and synchronization applications are presented.

A new 4D hyperchaotic attractor is achieved through a simulation, circuit experiment and mathematical analysis by obtaining the Lyapunov exponent spectrum, equilibrium, bifurcation, Poincaré maps and power spectrum. Moreover, hardware experimental measurements are performed and obtained results well validate the numerical simulations. Also, the passive control method is presented to make the new 4D hyperchaotic system stable at the zero equilibrium and synchronize the two identical new 4D hyperchaotic system with different initial conditions.

The passive controllers can stabilize the new 4D chaotic system around equilibrium point and provide the synchronization of new 4D chaotic systems with different initial conditions. The findings from Matlab simulations, circuit design simulations in computer and physical circuit experiment are consistent with each other in terms of comparison.

The 4D hyperchaotic system is presented, and dynamical analysis and numerical simulation of the new hyperchaotic system were firstly carried out. The circuit of new 4D hyperchaotic system is realized, and control and synchronization applications are performed.

This study aims to discover the general trends, the structural characteristics of the knowledge base, and developments in the field of internationalization of higher education (IHE) in Turkey. In this respect, the studies published in journals indexed by SSCI, SCI-Expanded, ESCI, and AHCI in Web of Science (WoS) between January 1, 1975, and November 20, 2021, were analyzed. The dataset included 260 articles. We administered descriptive analysis reflecting the topographical features and the dynamics of the related literature through Excel and the WoS analysis tools. We conducted bibliometric analyses to shed light on the current view of the literature and reveal the intellectual structure of the knowledge base and topical foci. The volume of the research in the field of IHE in Turkey and their yearly distribution suggests that this area of research is still in its infancy; however, there has been a rapid growth in the number of publications recently. Author co-citation analysis reveals four distinct schools of thought labeled as “Higher Education Policy Studies in EU,” “Global Socio-politics and Economics of IHE,” “Socio-cultural and Psychological Dimensions of Internationalization” and “Language Studies.” Finally, topical foci in the knowledge base emerged as “International Student Mobility,” “Psychological and Cultural Adaptation of International Students,” “Higher Education Policy Reforms,” “International Staff Mobility” and “Migration Related Issues.” The results are discussed with related review studies and suggestions for future research are provided.

Current school leadership research has primarily utilized quantitative methods to explore the relationship between leadership and teacher learning. However, there is a notable gap in understanding how principals facilitate professional learning, especially in centralized educational settings. This study aims to address this gap by examining the role of school leadership in enhancing teacher professional learning within a highly centralized education system.

This qualitative case study delves into the lived experiences of 15 teachers and eight school leaders in eight primary schools in Mashhad, Iran. Through semistructured interviews, researchers employed open and axial coding to systematically explore and categorize qualitative data. The study focuses on understanding the role of principal leadership in facilitating teacher professional learning by connecting themes and sub-themes across transcripts.

Effective principals worked on the cultivation of a culture that champions perpetual personal growth and development, the nurturing of a collaborative learning community, and the provision of essential resources and support. Findings showed the pivotal role of principals in promoting teachers' self-development, facilitating idea exchange and acknowledging their efforts. Principals appeared as key to encouraging information sharing, fostering collective learning, promoting professional development, overseeing teaching practices and ensuring the availability of resources to cultivate a supportive climate in a centralized education context.

We concluded that in centralized education, leadership practices for promoting teacher learning share similarities and differences with decentralized settings. The findings offer guidance for principals in centralized systems, supporting them in facilitating teacher professional learning in their schools.