bluuebunny/crossref_metadata_2025_split huggingface dataset:
The leader – manager debate in the Greek public administration: a critical review of the literature and future research agenda.
Authors: Tzavella Vassiliki 
Published: June 2023

One factor that researchers regularly cite as one of the most important contributors to organizational performance is leadership. However, despite the widespread speculation that leadership is important for organizational success, there has been relatively little research regarding the impact of leadership behaviours on organizational performance in governmental entities. More specifically, there is little research examining the impact of transformational leadership behaviours on organizational performance within governmental entities. The point is to examine the leader – manager debate in the field of Public Administration in Greece, in the light of the implementation of the New Public Management. Consequently, the purpose of this paper is to make a bibliographic review of these issues in the case of Greece, summarizing definitions and characteristics of leadership, leadership styles, differences between management and leadership styles and to study the challenge of public sector leadership in a time of crisis, the impact of New Public Management in the public sector administration as well as the leader / manager debate in the Greek public administration context. Τhe debate about Greece is being developed in the modern dimensions of the governance and administration of the quality of the institutions, that is in the modern results of good management and leadership.
Through an illustrative bibliographic review we have conducted so far, there is a lack of studies about the impact of Greek public sector leadership, the existence of a best leadership style and whether the regional government can work effectively in terms of private sector management to be effective and rewarding in the local community. We base our study on Van Wart’s (2003) literature review on public sector leadership. Does public sector leadership existing in its own right, or is it merely private leadership applied to the public domain? Is there any need for leadership development programs which focus on the difference between administrative leaders in the public sector and their counterparts in the business world? What is the best leadership style to use in a time of crisis?

Keywords: Leadership, Management, Local Government, Greek Public Administration, New Public Management.
Disclosure Level before and after the application of an IPSAS based accounting system: The case of Greece
Authors: Vrentzou Eleni 
Published: June 2023

Purpose – The purpose of this paper is to compare the level of central government financial information disclosed in the annual financial statements before and after the adoption of an accounting system based on International Public Sector Accounting Standards (IPSAS). A comparison of this disclosure level to the IPSAS required disclosure level is also performed.
Design/methodology/approach – This study uses a checklist of disclosure items used to measure the IPSAS disclosure level and compare this with the score of the government financial statements in Greece for the years 2011-2020.
Findings – The results show significant differences between the disclosure level of the government financial statements before and after the application of an IPSAS based accounting system. Specified application difficulties explain the difference between the required IPSAS disclosure level and the level already achieved by the Greek public accounting system.
Practical implications – The research findings are potentially relevant to academics and practitioners since it provides evidence on the improvement of the disclosure level on the process of IPSAS application. It also identifies difficulties faced on this process and explains how they affect the disclosure level achieved.

JEL CODE: H83
Key words: International Public Sector Accounting Standards, Disclosure, Public Sector Accounting
Kopernik w Europie - zapiski z peregrynacji z dziełem Kopernika po Europie z okazji Międzynarodowego Roku Astronomii
Authors: Szmak Andrzej 
Published: June 2023

Zapis peregrynacji z reprintem dzieła Kopernika „De revolutionibus” po Europie z okazji Międzynarodowego Roku Astronomii. Kraków- Budapeszt- Wiedeń- Linz- Padva- Mediolan –Lyon- Paryż- Bruksela-Amsterdam- Getynga. Jedenaście sławnych europejskich miast, 5000 kilometrów w dziesięć dni i jedno pytanie: Jaki obraz Kopernika dotrwał do dzisiejszych czasów ? Europa Kopernika kojarzy raczej słabo. W tym o co chodziło w jego teorii i jakie miało znaczenie dla rozwoju ludzkości orientują się nieliczni. To jednak Kopernik przewrócił cały wszechświat do góry nogami. Napisał dzieło dla elity uczonych , ale wszyscy jesteśmy nim naznaczeni. I wszędzie, na Piazza Dumo w Mediolanie, nad kanałami Amsterdamu i przed paryską Sorboną spotykaliśmy ludzi, młodych i starszych, którzy mieli tego świadomość. Było ich zaskakująco wielu.
Inter-Unit Executive Redeployment in Multiunit Firms: Evidence from Korean Business Groups
Authors: Chang Sea-Jin , Kim Young-Choon , Park Sangchan 
Published: June 2023

Building on the literature on resource reconfiguration theory, we formulate a new theoretical framework that explains how executive redeployment within a diversified firm transfers different types of human capital embodied in executives to different units facing specific business challenges. In the empirical context of Korean business groups, we find that executives with unit-specific human capital, like turnaround experience, competitive experience, and international expansion experience, are redeployed to units with corresponding business challenges like financial difficulties, intensifying competition, and early-stage international expansion, respectively. We also show that executives with unit-generic human capital, like corporate management practices and interunit coordination experiences, are redeployed to younger units seeking to establish corporate-level policies and practices. Additional analyses also show that the value of firm-specific human capital in driving the redeployment of executives is contingent on their functional orientation and seniority. Funding: S.-J. Chang appreciates financial support from the Lim Kim San Chair Professorship from National University of Singapore and Techno SK Chair Professorship from KAIST. Y.-C. Kim is also grateful for financial support from the Ministry of Education of the Republic of Korea and the National Research Foundation of Korea [NRF-2022S1A5A2A01044597]. Supplemental Material: The e-companion is available at https://doi.org/10.1287/orsc.2020.14525 .
Directed Acyclic Graph-Type Distributed Ledgers via Young-Age Preferential Attachment
Authors: Mönch Christian , Rizk Amr 
Published: June 2023

Distributed ledger technologies provide a mechanism to achieve ordering among transactions that are scattered on multiple participants with no prerequisite trust relations. This mechanism is essentially based on the idea of new transactions referencing older ones in a chain structure. Recently, directed acyclic graph (DAG)-type distributed ledgers that are based on DAGs were proposed to increase the system scalability through sacrificing the total order of transactions. In this paper, we develop a mathematical model to study the process that governs the addition of new transactions to the DAG-type distributed ledger. We propose a simple model for DAG-type distributed ledgers that are obtained from a recursive young-age preferential attachment scheme (i.e., new connections are made preferably to transactions that have not been in the system for very long). We determine the asymptotic degree structure of the resulting graph and show that a forward component of linear size arises if the edge density is chosen sufficiently large in relation to the “young-age preference” that tunes how quickly old transactions become unattractive. Funding: The research of C. Mönch is supported by the Deutsche Forschungsgemeinschaft [Grant 443916008].
Interferência das plantas daninhas por nutriente em cenoura cultivada com e sem mulch de aveia-preta
Authors: CRISTINA LANG MICHELE , DE ARAÚJO BARBOSA JAQUELINE , DOUGLAS FERREIRA SILVIO , REGINA GODOY BAPTISTÃO AMANDA , VILANOVA DA COSTA NEUMARCIO 
Published: June 2023

A convivência com as plantas daninhas prejudica o acúmulo de nutrientes nas plantas de cenoura, porém, o mulch pode reduzir os efeitos da competição e proporcionar vantagens a cultura de interesse. Este trabalho objetivou avaliar o uso do mulch de palha de aveia-preta (Avena strigosa Schreb.) no acúmulo de massa seca de plantas daninhas e no acúmulo de nutrientes (N, P, K e S) nas plantas de cenoura da cultivar ‘Alvorada’. Os experimentos foram instalados nas estações de cultivo 2016/2017 e 2017/2018, em delineamento em blocos ao acaso em esquema fatorial 2 x 5, com 5 repetições. O primeiro fator correspondeu a cobertura do solo (com e sem mulch) e o segundo fator aos períodos de convivência com plantas daninhas (0, 15, 30, 60 e 120 dias após a emergência). A convivência com a comunidade infestante causou redução na absorção dos nutrientes e no acumulo de massa seca das raízes das plantas de cenoura, mais intensamente nos cultivos sem o mulch do que nos cultivos com mulch da palha de aveia preta. O uso do mulch pode reduzir em até 75.6% a massa seca das plantas daninhas durante todo o ciclo da cultura. Portanto, o uso de mulch de palha de aveia preta reduz a mato interferência e permite maior acúmulo de nutrientes e de biomassa nas raízes das plantas de cenoura da cultivar ‘Alvorada
Qualidade fisiológica e sanitária de sementes de cártamo armazenadas por diferentes períodos
Authors: Menegaes Janine Farias , Russi Nunes Ubirajara , Antonello Londero Backes Fernanda Alice , Swarowsky Alexandre , Fiorin Tasquetto Tatiana , De Lima Franzen Felipe 
Published: June 2023

A cultura de cártamo (Carthamus tinctorius L.) apresenta interesse agroeconômico devido a sua ampla aptidão de usos, desde ornamental a extração de óleo, com boa adaptabilidade de cultivo em todo país. Porém, esse cultivo ainda apresenta desafios quanto a qualidade de suas sementes, em virtude da alta susceptibilidade ao ataque de fitogêneos. Assim, o objetivo deste trabalho foi avaliar a qualidade fisiológica e sanitária das sementes de cártamo submetidas a diferentes períodos de armazenamento. O experimento foi conduzido em delineamento inteiramente casualizado, 4x7 (lotes de sementes cultivadas na safra 2017/2018: semeadas no inverno e na primavera de 2017 e no verão e no outono de 2018, e períodos de armazenamento de sementes: 0; 6; 12; 18; 24; 30 e 36 meses sequenciais contabilizados a partir das datas de colheitas), com quatro repetições. As qualidades foram avaliadas pelos testes de germinação, condutividade elétrica, massa seca e comprimento de plântulas, emergência no campo e sanidade. Observou-se que os diferentes lotes de sementes de cártamo apresentam sensibilidade ao armazenamento prolongado, com redução do potencial fisiológico, especialmente do percentual germinativo e de emergência de plântulas. Além do aumento da incidência dos fitopatógenos nocivos sobre essas sementes. Deste modo, recomenda-se o período de até 12 meses, para obter a conservação das sementes de cártamo.
Produção de mudas de abobrinha sob estresse salino em diferentes ambientes e substratos
Authors: De Oliveira Santos Samuel , Gomes de Sousa Geocleber , Matos da Cruz Filho Elizeu , Barroso da Silva Junior Francisco , Ferreira Goes Geovana , Castelo Sousa Henderson , Ribeiro Gomes Krishna , Nascimento Leite Kelly 
Published: June 2023

A interação entre ambiência agrícola e substratos alternativos pode atenuar o estresse salino em mudas de abobrinha. Com base nisso, o objetivo deste trabalho foi avaliar a produção de mudas de abobrinha irrigadas com águas salinas e cultivadas em diferentes tipos de ambientes e substratos. O delineamento experimental foi o inteiramente casualizado, utilizando esquema de parcelas subsubdivididas, sendo a parcela os três ambientes de cultivo (AM1= pleno sol; AM2= telado vermelho com 50% de sombreamento; AM3= telado preto com 50% de sombreamento), a subparcela os três substratos (SB1= biocarvão + solo; SB2= casca de arroz carbonizado + solo, SB3= esterco bovino + solo) e a subsubparcela as duas águas de irrigação (AI1= 0,8 e AI2= 2,5 dS m-1), com quatro repetições de vinte e cinco sementes. As variáveis analisadas foram: porcentagem de emergência (PE), índice de velocidade de emergência (IVE), tempo médio de emergência (TME), velocidade média de emergência (VME), diâmetro do caule (DC), altura de plântula (AP), comprimento da raiz (CR), massa seca da parte aérea (MSPA), massa seca da raiz (MSR) e massa seca total (MST). O ambiente AM3 apresentou melhores condições para as variáveis: PE, IVE e VME. Já o ambiente AM2 apresentou melhores condições para a variável TME com a utilização dos substratos SB2 e SB3 independente da salinidade da água de irrigação. O substrato SB3 apresentou melhores condições de crescimento para as variáveis: AP, DC, MSPA e MST. O substrato SB2 proporcionou melhores condições para a variável MSR.
¿Qué aporta la disciplina positiva en mi día a día con los alumnos y qué les aporta a ellos que utilicemos este estilo educativo?
Authors: Mejía Natalia , Santiago Marta 
Published: June 2023

La disciplina positiva es conocerse, cuidarse para cuidar, establecer vínculos que retroalimentan, límites y normas claras con amabilidad y respeto y trabajo con los alumnos para que desarrollen habilidades socioemocionales.
La disciplina positiva es un modelo educativo y social que parte de un ambiente basado en el respeto y la cooperación, para llegar al aprendizaje deseado. Se centra en la conexión entre profesoralumno y alumno-alumno, de tal manera que ese vínculo le permita cooperar y desarrollarse en sociedad, atendiendo a sus propias necesidades y las de los demás.
Research on Chemistry Teaching Skills in Middle School Under Micro-Teaching Environment
Authors: Wang Chenyu , Jia Tianmeng , Sun Lin 
Published: June 2023

Teaching skills are the foundation of teacher’s ability, and normal students, as the reserve army of future teachers, should train teaching skills consciously in their daily life. As a modern teaching technique widely used in training normal students, micro-teaching is of great significance to explore the cultivation of teaching skills. It should be widely introduced into the training of normal university students. However, there are relatively few researches on teaching skills in micro-teaching of chemistry at present, so we devote to studying the key skills that normal students should master in micro-teaching and the training methods of chemistry teaching skills under micro-teaching environment.This paper will use the practical cases in Chinese middle school chemistry teaching to help normal university students majoring in chemistry to master four key teaching skills: import skills, questioning skills , blackboard writing skills and reinforcement skills, so as to help them achieve the ideal teaching effect.
The Interests of the Gulf Monarchies in the Horn of Africa
Authors: Cherkas Bohdan , Novytska Natalia 
Published: June 2023

The aim of this article is to analyze the policy of the Gulf monarchies in the Horn of Africa. Close historical ties between two regions have given rise to deep cooperation between African and Arab states nowadays. Gulf monarchies competed for a long time to deepen their political, economic and security impact in the region.
Strengthening economic ties with the Horn of Africa has helped increase food security in the Persian Gulf. Investments by Arab monarchies in modernizing ports in Sudan, Eritrea, Somalia and Djibouti are helping to improve logistics infrastructure in the Northeast Africa. At the same time, the rapid militarization of the region due to the establishment of a number of Gulf states military bases in the Horn of Africa is increasing the level of conflict-generating in the region. The Red Sea and the Gulf of Aden both have strategic importance for the armed support for the military campaign of the Saudi Arabia and the United Arab Emirates coalition in Yemen. That is why the Horn of Africa has also gained strategic importance due to the conflict in Yemen, and therefore the ambitious Gulf states have become increasingly have become increasingly involved in the regional geopolitics. Saudi Arabia and the UAE, as the main ally of Riyadh in the Persian Gulf, are increasingly seeing the Horn of Africa as their “western flank of security.” They are united by the desire to prevent the growing influence of Turkey, Iran and Qatar in this part of the world.
The competition between Saudi Arabia, UAE, Qatar and Iran helps to attract investments, maintain general stability and improve the security situation in the Horn of Africa. Conflict mediation and asset build-up in the Horn of Africa have enabled Saudi Arabia, the UAE and Qatar to establish political influence in the region. The Gulf states are using their growing economic, security and diplomatic influence in Africa to reduce the influence of competitors and gain international support on the world stage.
Strategic Environmental Corporate Social Responsibility (ECSR) Certification and Endogenous Market Structure
Authors: Sharma Ajay , Rastogi Siddhartha 
Published: June 2023

Abstract
This paper extends the findings of Liu, Wang, and Lee (2015. “Strategic Environmental Corporate Social Responsibility in a Differentiated Duopoly Market.” Economics Letters 129: 108–11), along two dimensions. First, we consider the case of endogenous market structure a la Singh and Vives (1984. “Price and Quantity Competition in a Differentiated Duopoly.” The RAND Journal of Economics: 546–54). Second, we refine the ECSR certification standards in differentiated duopoly with analysis of both uniform and discriminating standards. We find that NGO certifier will set the ECSR standards below the optimal level. We show that given the ECSR certification standards, there is a possibility of both price and quantity contracts choices by the firms in endogenous market structure. Additionally, we highlight the market structures emerging due to uniform and discriminating ECSR standards.
Computational and experimental investigation of antibacterial and antifungal properties of Nicotiana tabacum extracts
Authors: Khan Muhammad Hamayoon , Rauf Abdur , Saeed Muhammad , Alomar Taghrid S. , Khalil Anees Ahmed , AlMasoud Najla , Sharma Rohit , Ribaudo Giovanni 
Published: June 2023

Abstract
The identification of novel anti-infective agents of synthetic and natural origin represents one of the main aims of contemporary drug discovery. In the current work, four different varieties of Nicotiana tabacum, namely, K399, SPG28, Swat No. 1, and Swat No. 2, were studied to assess the antibacterial and antifungal properties of their extracts. The extracts contain anthraquinones, alkaloids, saponins, terpenoids, tannins, resins, steroids, proteins, and carbohydrates, and the antibacterial and antifungal activities were evaluated toward four bacterial and four fungal strains. N. tabacum K399 showed the highest zone of inhibition against E. coli. Similarly, K399 showed the highest antifungal potential, as the highest zone of inhibition for the set was detected against C. albicans. Then, the underlying molecular mechanism was further investigated, and the extracts were tested for their inhibitory potential against urease, an enzyme which is conserved in bacteria and fungi. Additionally, computational tools were enrolled to assess the role of rutin and chlorogenic acid, which are among the main constituents of N. tabacum leaves, in interacting with urease through molecular docking. Combined together, the computational and experimental results support the antibacterial and antifungal potential of N. tabacum extracts, particularly, that obtained from K399 variety.
Influence of the presence of a nitrided layer on changes in the ultrasonic wave parameters
Authors: Mańczak Ryszard 
Published: June 2023

Abstract
In this work, attempts are made to estimate the relationship between the ultrasonic wave parameters and the presence of the nitrided layer. Special samples were prepared, the surfaces of which were ground and then nitrided. The samples were evaluated by ultrasonic method before and after the nitriding. During the tests, three parameters of the ultrasonic wave were recorded i.e., time of wave propagation, dominant frequency of the spectrum and bandwidth. The measurements were repeated ten times. The obtained results indicate, in particular, a reduction in the wave propagation time in the samples after nitriding compared to the samples without the nitrided layer.
The role of psychiatry in diagnosis and treatment of paediatric chronic fatigue syndrome – a scoping literature review
Authors: Dolp Reinhard , Wardle David PR , Khalid-Khan Sarosh 
Published: June 2023

Abstract

Objectives
Paediatric Chronic Fatigue Syndrome (pCFS) is a common condition that significantly disrupts a healthy psychosocial development. Psychiatric symptoms associated with pCFS are conceptualized as either part of its complex etiology, its consequence, or as a comorbidity. However, patients with this condition are rarely seen by psychiatrists. This scoping review aims to explore the role of psychiatry in the diagnosis and treatment of pCFS.

Content
A scoping review of literature was conducted using MEDLINE, EMBASE, Cochrane and PsycINFO. Databases were searched for articles describing psychiatric involvement in the diagnosis or treatment of children and adolescents (age ≤ 18) with pCFS. A grey literature search was also conducted to identify additional guidelines and national recommendations to identify the role of psychiatry in the diagnosis and treatment of pCFS.

Summary
The search provided 436 articles of which 16 met inclusion criteria. Grey literature search identified 12 relevant guidelines. Most studies and guidelines did not include any psychiatric involvement in the care of patients with pCFS. If psychiatry was mentioned, it was used interchangeably with psychological interventions or in the context of treating distinct psychiatric comorbidities and suicidal ideation.

Outlook
The role of psychiatry in diagnosis and treatment of pCFS is poorly defined. Future research is required to understand how psychiatrists can contribute to the care of patients with pCFS.
Emotional community and concerted action: on the emotional mobilization mechanism of disinformation in the Anti-extradition Law amendment movement in Hong Kong
Authors: Tang Jingtai , Chen Qiuyi , Xu Mingliang 
Published: June 2023

Abstract
With the large-scale application of computational propaganda, disinformation campaigns have emerged globally in response to the logic of “post-truth” politics. Organized disinformation campaigns operate frequently on overseas social media platforms, with China often being the target. In order to understand the dissemination mechanisms of such disinformation campaigns, the study found that the dissemination of disinformation became a key strategy for the campaign’s emotional mobilization. The main subjects of disinformation have formed an international communication matrix, creating and spreading all kinds of disinformation on a large scale. The “coalition of protesters” is based on the shared emotional experience evoked by disinformation and characterized by the act of spreading disinformation. Then, the widespread dissemination of the corresponding emotions leads to different perceptions of the “target,” thus prompting protesters to adopt different types of collective action. This mechanism of emotional mobilization shows that facts are “too big to know,” which exacerbates confirmation bias and provides more space for the spread of disinformation. The strong emotions embedded in disinformation contributed to the completion of the protesters’ imagination of community, and emotions became the dominant factor in coalescing the group and providing motivational support for collective action.