bluuebunny/crossref_metadata_2025 huggingface dataset:
Application of the Method of Increasing the Practical Throughput Performance in the Conditions of the Slovak Railways
Authors: Bulková Zdenka , Gašparík Jozef , Černá Lenka
Published: May 2023

Rail transport is a continuous process that must be coordinated at all levels of management and is determined by technological processes. From a technological point of view, it is important to correctly determine the practical throughput of the track section, also called the railway infrastructure capacity. This means how much train traffic can be used to load the track section so that it shows sufficient train traffic stability even in the event of operational irregularities. The article is focused on the method of increasing the capacity of the Drienovská Nová Ves - Kysak track section with using the application of the method of determining the practical throughput performance in the anticipated timetable. Detailed determination of the occupation times of the section in the current state and in the application of individual proposals to increase the capacity of the investigated railway line provide us with information on other possibilities of modernization of the railway infrastructure in Slovak Republic. The article describes and evaluates the advantages and disadvantages of individual proposals to increase capacity of the track section. As part of the future modernization of the railway infrastructure of this track section, it is necessary to implement these measures, as the track section under investigation is part of the AGTC and TEN-T international railway corridors. When designing new corridors, it is necessary to analyse and optimize the current railway network. The intention is not only to increase the quality of railway infrastructure, but also the quality of goods and passenger transport.
Proference: Behavioural Mix Between Propensity and Preference on Financial Market
Authors: DINGA Emil
Published: May 2023

The origin of economic preference is still disputable inside general economic theory and, especially, inside microeconomics (more specifically, regarding financial market functioning). The invariant vs. adjustable nature, or the objective vs. subjective character of the economic preference are within the core of conceptual, methodological, and instrumental debates and controversies. The paper enters this polemic with a new proposal, namely a model which builds, for the behaviour on financial market, the concept of propensity (coined by Karl Popper), from the objective/invariant side, and the concept of preference, as a behavioural mix which could be named as proference. To this end, the normative framework of society, viewed as a cultural geodesic will is aimed at to give the relative stability to the preference which, in turn, will act in an adaptive way on the cultural geodesic, in an evolutionary circular causality. Therefore, a new mechanism of financial market functioning – which could be named as Proference-Based Market Hypothesis (PBMH) – is proposed and (in its essential features) discussed. The main findings of the research are: a) although the economic preference is, generally, idiosincratic, however it is (necessarily) anchored to a quasi-objectified (not objective!) pillar, namely, to the cultural geodesic of the society as a whole; b) any economic preference is adaptive, and its adaptivity is so that it enters a co-evolution process with the cultural geodesic; c) in fact, on the financial market we always meet the preference, never we meet neither the propensity (that is, the cultural geodesic per se), nor the preference (that is, the idiosyncrasy per se); d) the concept of preference should be taken over by the financial theory and introduced into the logical and quantitative models of the financial market.
Investigating Causal Spillovers among International Stock Markets
Authors: CHARDA Magdalini , PENDARAKI Konstantina
Published: May 2023

Recognizing how financial shocks are transmitted to national economies will enable policymakers to take appropriate fiscal and monetary policy action. Such actions will be able to prevent or reduce the intensity of shocks to critical macroeconomic variables. Observing the financial crises in countries of the European Union and Argentina, highlights the main similarities and differences they present in the context of their course in international economic conditions. This study investigates the relation among international stock indices of major importance and stock indices of less developed economies during normal periods and the Covid-19 pandemic by employing a Vector Autoregression (VAR) framework. Econometric outcomes indicate that the German DAX30 and the British FTSE100 indices are positively influential towards the Greek ATX and the Portuguese PSI20 indices. Notably, this impact is revealed to fade out as more lags are considered. Moreover, the French CAC40 index is found to exert negative effects on the Greek and Portuguese indices and its impacts also diminish as time passes. Notably, the Argentinian stock index is found to be both a transmitter of purely negative effects towards the Italian and the Spanish stock indices while impacts on the Greek and the Portuguese indices turn into positive with the evolution of time. Nevertheless, its influence on stock indices of more advanced economies (DAX30, FTSE100) is found to be weaker. This paper serves as a compass for interested investors in order to better allocate their resources during normal periods as well as during crises.
Critical Thinking Stance in Teaching Business and Economics. Explorative Qualitative Study in Higher Education
Authors: DUMITRU Daniela , MINCIU Mihaela
Published: May 2023

In this paper we present the triangulation of three data sets, observation, focus groups and document analysis in order to reveal the differences between Higher Education Institution (HEI) and Labor Market Organization (LMO) regarding critical thinking (CT) development. The three methods were used chronologically, starting with observation, and continuing to focus groups and document analysis. The results showed that teaching methods were the most "forgotten" item in HEI and were abundant in LMO training settings. Moreover, teaching strategies are different, LMO employing social-constructivist type, different from HEI teachers, which focuses in particular on the transmission of information. The results showed, in this case, that the expectations were confirmed. HEI focuses on the interpretative and analytic aspects of CT, while LMO focuses also on dispositions, enhancing skills like responsibility, awareness, identification, and analysis, interpretation, self-learning. But both HEI and LMO, are addressing CT indirectly, through an implicit teaching approach. The research was carried out as part of the Critical thinking for successful jobs - THINK4JOBS project, which proposes an innovative approach to CT for a better insertion of students in the labour market.
Komodifikasi "Akal Sehat" sebagai Industri Kampanye Politik di Indonesia
Authors: Martnasti Mirzal , Huseini Martani
Published: May 2023

Penelitian ini berfokus pada fenomena media dan industri kampanye politik di Indonesia dengan melihat komodifikasi politik akal sehat Rocky Gerung. Tujuan dari penelitian ini adalah untuk menganalisis komodifikasi politik akal sehat Rocky Gerung dalam industri kampanye politik. Untuk mendapatkan hasil yang komprehensif, penelitian ini menggunakan pendekatan kualitatif dengan metode studi kasus, yang datanya dikumpulkan melalui studi pustaka dan analisis isi media. Hasil Penelitian menemukan, Pertama, Rocky Gerung menyempitkan pengertian akal sehat dengan mengesampingkan obyektivitas. Kedua, kampanye akal sehat Rocky Gerung lebih dekat kepada retorika politis daripada suatu konsepsi filosofis. Dengan demikian akal sehat tidak lebih dari komodifikasi politik yang penggunaannya disesuaikan dengan keinginan dan kepentingan subyektifnya yang lekat dengan industri kampanye politik. Ketiga, pendalaman demokrasi Indonesia saat ini terancam oleh munculnya partai-partai yang semakin berorientasi pasar dalam lingkungan media massa dan media sosial yang dikendalikan oleh kepentingan ekonomi politik.
Instagram Business Coach sebagai Penggerak Passion Economy dalam Perspektif Islam
Authors: Herari Noprita , Waluyo Waluyo
Published: May 2023

Passion Economy (PE) merupakan sebuah gerakan yang memungkinkan individu mengubah potensi dan bakat miliknya menjadi sumber mata pencaharian. Hal ini semakin menjadi global trend saat pandemi 2020, ketika krisis global tersebut memaksa jutaan individu harus rela kehilangan mata pencaharian utamanya. Perkembangan PE tidak terlepas dari peran Instagram Business Coach (IBC) yang melakukan kampanye turn passion into income melalui pemanfaatan personal branding atas kredibilitas yang dimiliki pengguna Instagram. Penelitian ini bertujuan untuk mengetahui korelasi antara IBC sebagai penggerak PE dan maknanya dalam perspektif Islam. Meskipun banyak didapati penelitian mengenai perkembangan media sosial, terutama pada saat pandemi, namun belum banyak yang mengaitkan fenomena kesehatan dan ekonomi global ini dengan media komunikasi dalam perspektif religi. Penelitian ini bertujuan mengisi celah itu, dengan menganalisis hubungan fenomena IBC sebagai kekuatan utama bagi PE dan maknanya dalam pandangan Islam. Menggunakan metode kualitatif deskriptif dan analisis isi, penelitian ini menemukan bahwa, proses belajar dan mengajar sebagai tahap awal membangun personal branding yang dilakukan oleh IBC dapat menjadi cara bagi seorang muslim mengaplikasikan hadis mengenai mengamalkan ilmu dan potensi, serta menjadi salah satu definisi individu sukses dan berderajat tinggi.
Retorika Pidato Celebrity Maudy Ayunda sebagai Juru Bicara Presidensi G20
Authors: Afrianti Riska , Wijayanto Xenia Angelica , Nurhajati Lestari
Published: May 2023

Untuk pertama kalinya, Indonesia memegang Presidensi G20, sebuah forum kerja sama yang terdiri dari 20 ekonomi utama dunia. Kepresidenan Indonesia berlangsung selama satu tahun, mulai 1 Desember 2021 hingga 30 November 2022. G20 adalah forum internasional yang berfokus pada koordinasi kebijakan di bidang ekonomi dan pembangunan. Ini mewakili kekuatan ekonomi dan politik dunia, sebuah prestasi yang membanggakan. Sebagai sebuah perhelatan akbar, maka di dalam negeri sendiri, pemerintah merasa perlu untuk mengkampanyekan kegiatan ini secara masif dan terus menerus, dan melibatkan berbagai pihak yang ada. Salah satunya adalah dengan melibatkan Maudy Ayunda sebagai salah satu juru bicara presidensi G20. Penelitian ini bertujuan untuk mengetahui bagaimana kemampuan retorika Maudy Ayunda sebagai juru bicara Presidensi G20 dari berbagai pidato yang disampaikannya. Teori retorika selama ini memiliki beberapa asumsi bahwa keberhasilan retorika sangatlah bergantung pada kemampuan seorang pembicara.  Kesuksesan menyampaikan pidato ini pun tak lepas dari materi teks pidato maupun kemampuan public speaking pembawa pesan tersebut. Penelitian ini menggunakan pendekatan kualitatif dengan metode analisis retorika Camper, yang menganalisis dari sisi Ambiguity, Definition, Letter versus spirit, Conflicting, Assimilation dan Jurisdiction. Hasil penelitian ini menunjukan bahwa pidato kedua dan keenam Maudy memiliki semua unsur dari enam analisis retorika Camper, sedangkan pidato yang lainnya hanya beberapa elemen saja. Maudy Ayunda memiliki kekuatan pada gaya penyampaian baik secara verbal maupun non-verbal.
TRANSFORMATIONAL LEADERSHIP DAN STUDENT PERFORMANCE DALAM ONLINE LEARNING
Authors: Tanuwijaya Justine , Aseanty Deasy , Gunawan Andreas Wahyu
Published: May 2023

Abstrak

Tujuan : Penelitian  ini untuk menginvestigasi pengaruh transformational leadership terhadap student performance yang dimediasi oleh student satisfaction dan motivation to learn dalam pembelajaran online.

Desain/Metodologi/Pendekatan : Data primer menggunakan kuesioner  berjumlah 258 mahasiswa. Skala Likert digunakan untuk mengukur seluruh variabel.  Pengolahan data  menggunakan SEM. Hasil Penelitian : Hasil penelitian menunjukkan bahwa seluruh hipotesis diterima.  Pengaruh antar variabel adalah positif dan signfikan.

Keterbaruan/Nilai : Penelitian ini menekankan peran mediasi student satisfaction dan motivation to learn dalam pengaruh transformational leadership terhadap student performance  dalam pembelajaran daring di seluruh strata tempat penelitian dilakukan.

 

 

Abstract

Purpose : This research was to investigate the impact of transformational leadership to students performance  through student satisfaction and motivation to learn towards online  learning.

Design/Methodology/Approach :  The primary data was obtained using questionnaire of  258 students, Likert scale was used to measure all variables.. Data analysis was performed using SEM.

Results: This study indicated that  all hypothesis are accepted. The influence among variables are positive and significant.

Originality : The research was conducted using online learning system in all degrees by stressing mediating roles of student satisfaction and motivation to learn to achieve student performance.
Regularização fundiária de bens públicos urbanos: dificuldades, garantias e destinação social dos bens imóveis da união
Authors: Bodnar Zenildo , Marques Teixeira Arthur , Adriani Farias Valdez
Published: May 2023

A Regularização Fundiária, apesar de não ser um tema novo, comporta perspectiva inéditas de abordagem considerando as múltiplas realidades e a grande quantidade de assentamentos informais localizadosnas áreas públicas da União, as quais nem sempre cumprem com as suas finalidades sociais. Assim, considerando que o Poder Público também é destinatário do dever de cumprimento da função social da propriedade, incumbindo-lhe igualmente implementar políticas públicas, questionase, nesta pesquisa, em que medida a Regularização Fundiária de Bens Públicos se torna instrumento hábil de governança a fim de garantir o direito à moradia digna e o desenvolvimento urbano sustentável. Deste modo, o objetivo do artigo é analisar a Regularização Fundiária de Bens Públicos enquanto instrumento hábil de governança a fim de garantir o direito à moradia digna e o desenvolvimento urbano sustentável no contexto complexo de vulnerabilidade urbana. Para tanto, inicialmente, realiza uma abordagem dos elementos caracterizadores da Função Social da Propriedade à luz da Constituição Federal e prossegue com a análise da possibilidade de Regularização Fundiária de bens públicos urbanos. Por fim, examina a aplicação deste instituto em imóveis de propriedade da União. Utiliza-se o método de abordagem dedutivo, método de procedimento histórico e pesquisa exploratória. Como resultado da pesquisa, identifica-se a importância da atuação estatal na efetivação do Direito à Moradia Digna, especialmente através da possibilidade de Regularização Fundiária de imóveis públicos, sobretudo da União pela quantidade de imóveis que podem ser destinados.
Perfil de inadimplência de créditos fiscais de autarquias e fundações públicas federais
Authors: De Mello Brandão Filho Murillo Cesar , Menezes Neto Elias Jacob , Castelliano de Vasconcelos Caio
Published: May 2023

O objetivo do nosso estudo é investigar as características relevantes da inadimplência do estoque de créditos fiscais de autarquias e fundações públicas federais no âmbito do Estado do Rio Grande do Norte sob responsabilidade da Procuradoria-Geral Federal - PGF, órgão vinculado à Advocacia-Geral da União – AGU). O valor dessa pesquisa está na investigação de medidas concretas que possibilitem eficiência da advocacia pública federal na recuperação de ativos, bem como efetividade na razoável duração de processos. Aplicamos a jurimetria como metodologia por meio de pesquisa empírica quantitativa e descritiva em face de um conjunto de dados oficiais extraídos do sistema AGU de inteligência jurídica SAPIENS . O tamanho do conjunto de dados, a falta de acesso total às informações e o fato de créditos de algumas Entidades ainda não serem geridos no SAPIENS impuseram limitações práticas à investigação, que restou limitada aos recortes geográfico de devedores domiciliados no Estado do Rio Grade do Norte e temporal com dados de 04/2016 a 08/2020. Concluímos que as observações verificadas permitem a estruturação de um padrão, que denominamos de “perfil estratégico de inadimplência por quantidade (PEIQ)” através da identificação e agrupamento de características semelhantes de créditos fiscais diversos, podendo viabilizar, com isso, a elaboração de inferências e estratégias de atuação como instrumento para aperfeiçoamento da ordem jurídica.
STYLISTIC FEATURES OF SOUND PRODUCTION IN PIANOFORTE MUSIC OF WOLFGANG AMADEUS MOZART
Authors: Tarchynska Yulia , Tarchynska Inna
Published: May 2023

The article deals with the basic stylistic features of the sound production technique in the interpretation of piano opuses of the brilliant Austrian composer Wolfgang Amadeus Mozart. Its specific features are outlined in the context of the basic stylistic features of the artist’s piano heritage and typical performance tradition. The main features of sound production technique are related to the following basic stylistic elements of Mozart’s piano works: the laconicism of expressive means, the accuracy of all records of performance instructions, the transparency of the substance and at the same time the super-rich sense, the extraordinary expressiveness of the melody line in its slightest pitches; balance of emotions and logic and inexhaustible variability of images; logic of the chosen tempo-character of the work, accuracy of articulation, adequacy of the dynamics, quality and tonal beauty; clavier polytimbral. The character of sound production technique is also revealed on the basis of an analysis of Mozart’s performance style, which was characterized by perfect technical competence, accuracy of detailed nuances, exemplary highly artistic performance in the absence of any exaggerations, transparency of “grainy” sound, cantilenity and extent of the dynamics of the piano of the XVIII century. The sound production work in the play of Mozart’s works is determined by the specific tasks caused by specific musical and artistic content of each particular work. In general, the nature of pianistic techniques is associated with at excellent, brilliant finger technique, which excludes the excessive use of large arm levers, its excessive weighting. Under common kind of articulation, the finger rises from the key just before pressing the next one. The article provides exercises for the formation of this basic key touch, which is necessary for the gentle sound of “demilegato” play, the production of grainy sounds; emphasizes the need for rational organization of movements of the sensitive fingers for a detailed performance nuance, delicate “messa di voce” of the dynamics of the volume due to the recitative-declamatory nature of vocal plastic art in Mozart’s piano works. The development of Mozartianism will motivate researchers to analyze the wealthy palette of music styles of Austrian genius. At the same time, a deep understanding and, above all, mastering the art of interpreting a musical piece should also take into account the nature of a deliberate and appropriate pianistic embodiment of the performer’s artistic intentions.
Pengaruh Latihan Pogo Jump dengan Latihan Hand Up Squat Jump Terhadap Peningkatan Power Otot Tungkai
Authors: Permadi Anggi Juni , Nursasih Isna Daniyati , Rustiawan Hendra
Published: May 2023

This study used a pre-experimental method with a two-group pretest-posttest design to determine how much causation from the pogo jump exercise with hand-up squat jumps had on increasing leg power. The population used was Panji Kusumah volleyball players, Tasikmalaya Regency, with a sample of 16-17-year-old students, totaling 20 people. Test the hypothesis using the t-test, namely paired sample t-test and independent sample t-test. Based on the hypothesis test -t count < -t table (-2.177 < -2.101) it is known that there is an average difference in the increase in leg power between the pogo jump exercise group and the hand up squat jump group on the increase in leg power in the study sample. The suggestions put forward are: 1) The form of pogo jump training with hand-up squat jumps can be used as material for physical condition training on the power component, 2) For further research, it is hoped that it will become a source of reference for other researchers so that research in the same field will continue to grow.
Editor's comment
Authors: Kirsten Monica
Published: May 2023

Editorial
Representivity: The Achilles heel of bargaining councils
Authors: Holtzhausen Maggie
Published: May 2023

The legislative requirement of representivity of parties to bargaining councils remains one of the main challenges these institutions face. When trade unions and/or employersâ€™ organisations are deemed to be unrepresentative, this could lead to the ultimate collapse of the council, or result in collective agreements not being extended to non-parties â€“ thereby defeating the purpose of centralised collective bargaining. This research has thrown light on representation levels by demonstrating that they are not stagnant, but change constantly. The research indicates that today private sector councils especially are often faced with unrepresentative parties, mainly because of economic and political challenges and significant changes in the world of work. Examples are given of how councils deal with these challenges, if at all. The research indicates that even though representivity remains a huge challenge for councils, collective agreements are still in the main extended to non-parties. Nevertheless, there is evidence that the extension of agreements has been challenged. This article therefore throws light on and improves our understanding of non-representivity matters in certain bargaining councils, and by extension our understanding of non-representivity in other bargaining councils as well. It concludes with certain recommendations. Hence, this article contributes to existing knowledge by providing a more inclusive and integrated view of non-representivity and its consequences, thereby enriching the broader employment relations management context.
Employment equity in the South African retail sector: Legal versus competence and business imperatives
Authors: Roman Leon J , Mason Roger B
Published: May 2023

In 2013/14 a study entitled â€œInterventions to achieve employment equity objectives in the wholesale and retail sectorâ€ was conducted by the Wholesale and Retail Leadership Chair (WRLC) at the Cape Peninsula University of Technology on behalf of the W&RSETA (Sector Education and Training Authority). Objectives included assessing the impact of implementation of the Employment Equity Act (EEA) on retail organisations, and determining what supportive action regulatory authorities (the Department of Labour and the W&RSETA) and businesses could take to achieve employment equity (EE) goals. The study is therefore useful across the spectrum of the W&R industry, especially for employment relations practitioners and those tasked with EE implementation. The study followed a mixed-methods approach, using questionnaire surveys, in-depth interviews, case studies, focus groups and secondary data. Results indicated that EE tends to be numbers-driven at the expense of competence and talent management. Most respondentsâ€™ perceptions of EE implementation were negative, with the implication that a different approach is needed because the pace of change and transformation in the South African workplace is too slow. Although the small sample size limits generalisation of the findings, the study provides insight and direction for further research. This paper acknowledges that because EE is currently driven largely by meeting mandated targets for demographic change, the development of talent â€“ in essence, competence â€“ is lacking or inadequate. Thus, the recommendations propose a competency model linked to a performance management system, which could lead to an efficient EE talent management process. This process will enable organisations to develop, within the shortest possible period, competent individuals able to perform adequately in their positions, thereby maintaining or improving productivity; it also addresses effective succession planning.
Job satisfaction, organisational commitment and work engagement in an insurance company
Authors: Sehunoe Norah , Viviers Rian , Mayer Claude-Helene
Published: May 2023

Retaining talented employees and keeping them healthy and well are increasingly important challenges for organisations in the age of the knowledge worker. Organisations are interrogating aspects such as the reasons why some employees are more satisfied, committed and engaged to their organisations than others. Another question is: what should managers do to ensure employee wellness within their organisations? This study explores the relationship between job satisfaction, organisational commitment and work engagement. Spectorâ€™s (1997) Job Satisfaction Survey, Allen and Meyerâ€™s (1990) Organisational Commitment Questionnaire and Schaufeli and Bakkerâ€™s (2004) Utrecht Work Engagement Scale were administered to a sample of 220 employees from a South African insurance company. The findings show mixed results with regard to significant correlations between job satisfaction, organisational commitment and work engagement. The majority of the findings suggest that there are significant correlations, of a large and medium effect, between scales, including a number of positive relationships of varying strength between job satisfaction, organisational commitment and selected components of work engagement. The findings could benefit organisations as they could contribute to a better understanding of what motivates their workers, particularly their levels of satisfaction, commitment and engagement, and what the combined effect of these might be on the retention and wellness of employees.
Fighting the battles of the mine workers: The emergence of the Association of Mineworkers and Construction Union (AMCU)
Authors: Mathekga Mmanoko Jerry
Published: May 2023

The Association of Mineworkers and Construction Union (AMCU) was formed in post-apartheid South Africa. AMCU organises workers in the mining and construction sector. The importance and relevance of AMCU in democratic South Africa should not be de-emphasised, given the high levels of labour exploitation by mining companies. The mining sector is regarded as a crucial engine for economic growth and social development. AMCU, as the mining and construction labour movement, plays an important role in ensuring that its members are well represented, work in decent working conditions and are not exploited but are protected instead from the capitalist system in which the global economy operates. However, in the post-apartheid era, trade unions have not been forceful enough in advancing the interests of their members; instead they have been accused of being too close to employers and of having been co-opted by the new government. They are faced with the challenges of outsourcing, labour brokers and contracting-out of services by employers. Trust in trade unions has also decreased. This paper examines the emergence of AMCU and its rise in the mining sector.
Women in mining: A conceptual framework for gender issues in the South African mining sector
Authors: Botha Doret , CronjÃ© Freek
Published: May 2023

New mining legislation aims to rectify previous inequalities and disadvantages in the mining sector and specifically provides for the inclusion of women in core mining activities. Although there is no lack of good will, the achievement of gender equality in the male-dominated mining sector remains one of the biggest equity challenges in the country and numerous problems accompany the deployment of women in core mining activities. The main objective of the study was to critically analyse gender issues in the mining sector and then to develop a conceptual framework that will enable the mining sector to contribute to and ensure the sustainable employment of women in this sector. A literature review was carried out to gain an in-depth understanding of the variables that have an impact on women in the mining sector specifically. An empirical study was conducted to identify and investigate relevant gender-related issues in the mining sector. Quantitative and qualitative research paradigms were used. The research revealed that various factors need to be considered for the successful and sustainable deployment of women in the mining sector. The study concludes by making recommendations and offering a conceptual framework that could be implemented and used by various stakeholders in the mining sector
The factorial validity and reliability of a change agent identification assessment tool
Authors: Van der Linde-de Klerk Marzanne , Martins Nico , De Beer Marie
Published: May 2023

The main aim of the research project reported on here was to validate and test the reliability of the developed change agent identification assessment tool to be used by organisations to identify change agents more effectively in large organisations undergoing change, with a view to providing improved support to employees and ensuring more effective change management in such organisations. An initial change agent identification framework was developed by Van der Linde-de Klerk (2011) and this served as the foundation for the development of an assessment tool. Because minimal research has been conducted on identifying change agents in large organisations, it was deemed important to provide organisations with a tool to help them identify these individuals correctly. A sample group comprising 239 change agents participated in the quantitative research and completed the newly developed change agent identification questionnaire. The proposed questionnaire consists of three dimensions, namely willingness, commitment and personality traits. Participants indicated the ideal attributes in each dimension that they require to operate as change agents. The dimensions are based on the theoretical change agent identification framework that was developed. The results of the validity and reliability analysis indicated that the questionnaire can be used with confidence to select change agents. Change agents can typically be employees, managers, personnel practitioners, organisational development consultants or employee or union representatives. The developed scale showed positive reliability and validity results.
An offenderâ€™s perspective of what motivates and deters white-collar criminals in the South African workplace
Authors: Muto Luigi , Price Gavin
Published: May 2023

The aim of this study was to investigate the motives of white-collar criminals so as to gain a better understanding of white-collar crime and develop measures that can help to reduce it. The study involved face-to-face interviews with white-collar offenders imprisoned at a correctional centre in South Africa. The data collected provided evidence to support the existing theory relating to the motives for white-collar crime; however, a previously unreported theme of race emerged as a key motivator among the respondents. Race was further identified as a key justification for committing the crime. Suggestions from the respondents to employment relations practitioners on how best to mitigate the risks were also collected and reported. The deterrents that were identified as most effective by the respondents revolved around four themes, namely reports and signing authority, working environment, education and matching roles and responsibilities.
Editorâ€™s comment
Authors: Kirsten Monica
Published: May 2023

Editorial
Mission attachment and job embeddedness in the trade union sector of South Africa
Authors: Pillay Dechlan , Hofmeyr Karl , WÃ¶cke Albert
Published: May 2023

The job embeddedness construct is a totality of forces that act as a web of attachments to mitigate employee turnover. This view has gained support from research by Holtom, Mitchell and Lee (2006) but further research is needed to expand our understanding of the concept. In this article the applicability of mission attachment as a fourth dimension of job embeddedness is tested, thereby adding to our understanding of the construct.Data from 134 (trade union) and 30 (comparison group) respondents were analysed quantitatively and it was found that within a social organisation such as a trade union there is a strong, consistent and positive ranking between mission awareness and organisational job embeddedness. The results also show that the different dimensions of mission attachment had a significant impact on employees in the trade union sample. An additional finding was that employees in the trade union sector who are highly attached to the mission of the organisation tend to be those who have been employed in that sector for a relatively short period and that mission attachment declines over time.
Penyuluhan Kesehatan Dan Sosialisasi Tentang Cara Menangkal Covid-19 Di Kelurahan Sialang Munggu Kecamatan Tampan
Authors: Rasyid Zulmeliza , Harnani Yessi , Susanti Nurvi , Putri Lia Oktavianti
Published: May 2023

COVID-19 merupakan suatu virus  yang menyerang pernapasan infeksi paru-paru yang berat yang dapat membahayakan kesehatan bahkan dapat menyebabkan kematian. Virus ini menular dengan sangat cepat dan telah menyebar hampir ke semua Negara termasuk Indonesia. Gejala dari virus ini yaitu demam  (suhu diatas 38 derjat celcius), batuk dan sesak napas. Data kasus COVID-19 di Dinas Kesehatan Kota Pekanbaru mengalami kenaikan yang sangat signifikan perharinya dan Kecamatan Tampan merupakan kasus COVID- 19 tertinggi dari kecamatan lainnya yaitu memiliki 51 kasus ODP dan 5 kasus PDP. Kegiatan pengabdian masyarakat ini dilakukan di Kelurahan Sialang Munggu Kecamatan Tampan pada tanggal 24 Juli 2020 kepada ibu ibu ketua RT/RW di Kelurahan Sialang Munggu. Penyuluhan ini bertujuan untuk meningkatkan pengetahuan, sikap dan tindakan masyarakat tentang cara menangkal Virus Corona dan pencegahannya di lingkungan masyarakat di Kelurahan Sialang Munggu  Kecamatan Tampan.  Media yang digunakan untuk penyuluhan adalah laptop, n focus, leaflet dan poster. Metode yang digunakan dalam penyuluhan adalah metode ceramah. Hasil kegiatan penyuluhan ini diperoleh pengetahuan responden meningkat menjadi 85 %, sikap positif responden menjadi 78 % dan tindakan responden menjadi 90%. Para peserta kegiatan sangat antusias dan semangat sekali mengikuti kegiatan penyuluhan ini, hal ini dibuktikan dengan partisipasi  peserta dalam menjawab pertanyaan dan diskusi Tanya jawab pada kegiatan penyuluhan berlangsung. Diharapkan dengan adanya peningkatan pengetahuan, sikap dan tindakan terhadap penularan COVID-19 ini bisa dihindari dan diputuskan serta derajat kesehatan masyarakat di Kelurahan Sialang Munggu  dapat ditingkatkan.
Peningkatan Pengetahuan Ibu Hamil Tentang Kualitas Konsumsi Pangan Berhubungan Dengan Kurang Energi Kronis
Authors: Akbarini Oon Fatonah , Pramuwidya Asmaurika , Sundari Wiwik
Published: May 2023

Masa kehamilan erat kaitannya dengan pemenuhan zat gizi, karena ibu pada masa kehamilan akan berpengaruh tidak hanya pada kesehatan ibu hamil, namun juga pada status gizi dan kesehatan bayi yang dilahirkannya nanti. Kondisi ibu hamil sebenarnya ditentukan oleh berbagai faktor, baik faktor internal maupun eksternal. Faktor internal yang berpengaruh terhadap ibu hamil diantaranya usia ibu, usia gestasional, dan jarak kehamilan yang terlalu dekat dengan kelahiran pertama, Sedangkan untuk faktor eksternal diantaranya konsumsi pangan, kondisi geografis wilayahnya dan kualitas konsumsi pangan rumah tangga. Ibu hamil dengan kondisi kualitas konsumsi pangan yang baik cenderung memiliki status gizi yang baik pula (Kotut et al. 2014).

Kegiatan ini berupa penyuluhan dan demonstrasi tentang Kualitas Konsumsi Pangan Ibu Hamil Berhubungan Dengan Kurang Energi Kronis (KEK) yang diikuti sebanyak 30 ibu hamil yang ada di Wilayah  Puskesmas Rasau Jaya. Metode dan strategi kegiatan pengabdian masyarakat ini menggunakan metode penyuluhan menggunakan booklet dan demonstrasi tentang kualitas konsumsi pangan serta megolah makanan yang berkualitas dan bergizi untuk ibu hamil.

Hasil pre-test menunjukkan bahwa rata-rata pengetahuan sebelum dilakukan penyuluhan adalah 64,38 nilai minimal adalah 60 dan nilai maksimal adalah 77. Setelah dilakukan penyuluhan, dilakukan post test dengan hasil post test menunjukkan rata-rata pengetahuan meningkat yaitu 80,01 dengan nilai minimal adalah 74 dan nilai maksimal adalah 90. Sehingga terjadi kenaikan sebesar 15,63

Saat demonstrasi tentang Kualitas Konsumsi Pangan Ibu Hamil Berhubungan Dengan Kurang Energi Kronis (KEK), peserta sangat aktif dan antusias mengikuti kegiatan, Peserta kegiatan juga menanyakan berbagai hal terkait materi penyuluhan.

Kata Kunci: Pengetahuan, Ibu Hamil, Kurang Energi Kronis
Edukasi melalui mobile phone untuk mengubah perilaku orang tua terkait kepatuhan transfusi dan konsumsi kelasi zat besi pada anak dengan talasemia
Authors: Ernawaty Juniar , Utami Sri
Published: May 2023

Abstrak

Pengabdian ini bertujuan untuk meningkatkan kepatuhan orang tua dengan anak talasemia dalam membawa anaknya kepelayanan kesehatan untuk melakukan transfusi, serta meningkatkan perilaku orang tua dalam mendukung anaknya mengkonsumsi zat kelasi besi secara teratur. Target pengabdian pada usulan pengabdian ini adalah orang tua dengan anak talasemia yang berjumlah 34 orang. Kegiatan yang dilakukan terdiri dari tiga tahapan, pertama pengkajian. Dengan menggunakan kuesioner melalui mobile phone bertujuan untuk mengkaji data demografi, pertumbuhan dan juga kepatuhan terkait transfusi dan konsumsi zat besi. Tahapan kedua, yaitu memberikan edukasi melalui mobile phone, terkait pentingnya transfusi secara teratur dan konsumsi zat kelasi besi untuk pertumbuhan dan perkembangan anak talasemia, serta mengingatkan secara teratur selama 1 bulan penuh dengan frekuensi 1 kali per minggunya, agar anak teratur mendapatkan transfusi dan zat kelasi besi. Tahap ketiga, evaluasi perilaku peserta pengabdian melalui kuesioner melalui mobile phone. Pemilihan intervensi dilakukan melalui mobile phone disebabkan karena luasnya wilayah target pengabdian. Dari pengabdian ini didapatkan hasil bahwa mayoritas orang tua patuh membawa anaknya secara teratur untuk mendapatkan transfusi (32; 94%), meskipun tidak menunjukkan peningkatan perilaku dari pretest dan post test sesudah intervensi (32: 94%). Dari hasil pengabdian ini juga diperoleh hasil mayoritas diawal pengkajian patuh memberikan kelasi besi secara teratur pada anaknya yaitu 30 orang tua (88%) dan meningkat menjadi 32 orang tua (94%) sesudah intervensi melalui telepon.

Kata kunci: edukasi, mobile phone, talassemia, kepatuhan transfusi, konsumsi kelasi zat besi
Effect of Crosslink Homogeneity on the High Strain Behavior of Elastic Polymer Networks
Authors: Kong Victoria , Staunton Thomas , Laaser Jennifer
Published: May 2023

Crosslink heterogeneity and topological defects have been shown to affect the moduli of polymer networks in the low strain regime. Probing their role in the high strain regime, however, has been difficult because of premature network fracture. Here, we address this problem by using a double network approach to investigate the high-strain behavior of both randomly and regularly crosslinked networks with the same backbone chemistry. Randomly crosslinked poly(n-butyl acrylate) networks with target molecular weights between crosslinks of 5-30 kg/mol were synthesized via free-radical polymerization, while regularly-crosslinked poly(n-butyl acrylate) networks with molecular weights between crosslinks of 7-38 kg/mol were synthesized via crosslinking of tetrafunctional star polymers. Both types of networks were then swollen in a monomer/crosslinker mixture, polymerized to form double networks, and characterized via uniaxial tensile testing. Interestingly, the onset of strain stiffening occurred later in regular networks than in random networks with the same modulus, but was well-predicted by the target molecular weight between crosslinks of each sample. These results indicate that the low- and high-strain behavior of polymer networks result from different molecular-scale features of the material, and suggest that controlling network architecture offers new opportunities to both further fundamental understanding of architecture-property relationships and design materials with independently controlled moduli and strain-stiffening responses.
Room-temperature monitoring of CH4 and CO2 using a metal-organic framework-based QCM sensor showing inherent analyte discrimination
Authors: Malhotra Jaskaran Singh , Kubus Mariusz , Pedersen Kasper Steen , Andersen Simon Ivar , Sundberg Jonas
Published: May 2023

The detection of methane and carbon dioxide is of growing importance due to their negative impact on global warming. This is true both for environmental monitoring, as well as leak detection in industrial processes. Although solid-state sensors are technologically mature, they have limitations that prohibit their use in certain situations, e.g., explosive atmospheres. Thus, there is a need to develop new types of sensor materials. Herein, we demonstrate a simple, low-cost metal-organic framework-based gas leak detection sensor. The system is based on gravimetric sensing using a quartz crystal microbalance. The quartz crystal is functionalized by layer-by-layer growth of a thin metal-organic framework film. This film shows selective uptake of methane or carbon dioxide under atmospheric conditions. The hardware has low cost, simple operation, and theoretically high sensitivity. Overall, the sensor is characterized by simplicity and high robustness. Furthermore, by exploiting the different adsorption kinetics as measured by multiple harmonics analyses, it is possible to discriminate whether the response is due to methane or carbon dioxide. In summary, we demonstrate data relevant towards new applications of metal-organic frameworks and microporous hybrid materials in sensing applications.
Cu(II), Zn(II), Cd(II) and Hg(II) Complexes of Omeprazole (PPZH): Synthesis and Characterization
Authors: Begum Salma , Yeasmin Humaira , Akteruzzaman Md , Mazumder Md Motiur
Published: May 2023

Omeprazole is a widely used proton pump inhibitor. This is used for the treatment of gasteo-oesophageal reflux diseases as well as acid induced inflammation disorders of the stomach and duodenum. In the scheme of gradual release and extended acting drugs, metal complexes of the parent drugs are achieving growing importance. Complexes of metallic salts with PPI are known to be more effective and lower in toxicity in numerous circumstances as compared to the original drug itself. In this report, compounds of omeprazole with several metal salts such as copper, zinc, cadmium and mercury have been synthesized. The powders were analyzed applying different characterization techniques such as elemental analysis, infrared and ultraviolet-visible spectroscopy, thermal analysis including both TGA and DSC (differential scanning calorimetric), and finally magnetic susceptibility measurement. Omeprazole (OPZ) behaves as a bidentate ligand forming coordination compounds with metal ions having +2 charge. Anionic imidazolyl nitrogen (N-) and oxygen atom of sulfinyl >S=O group participate in coordination bond formation. Prepared compounds show tetrahedral structure.
Planar Confined Water Organisation in Lipid Bilayer Stacks of Phosphatidylcholine and Phosphatidylethanolamine
Authors: Vancuylenberg Gerome , Sadeghpour Amin , Tyler Arwen , Rappolt Michael
Published: May 2023

Phospholipid-based liposomes are abundantly studied in biomembrane research and used in numerous medical and biotechnological applications. Despite current extensive knowledge on membrane nanostructure and its mechanical properties under various environmental conditions, there is still a lack of understanding on interfacial lipid-water interactions. In this work, the nature of the confined water layer for L-α-phosphatidylcholine (egg-PC), 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC), 1,2-dimyristoyl-sn-glycerol-3-phosphocholine (DMPC) and 1,2-dimyristoyl-sn-glycero-3-phosphoethanolamine (DMPE) in the fluid lamellar phase of multilamellar vesicles was investigated. A new model for describing three different water regions is proposed, which have been characterised using a combination of small angle X-ray scattering (SAXS) and densitometry. The three regions concern (i) ‘the headgroup water’, (ii) ‘perturbed water’ near the membrane/water interface and (iii) a core layer of ‘free water’ (unperturbed water). The behaviour of all three layers is discussed as a function of temperature, concerning influences of chain saturation and headgroup type. While the overall water layer and perturbed water layer thickness increase with temperature, the free water layer displays the opposite trend for PCs, and in PEs is completely absent. Furthermore, an estimate of the temperature dependent headgroup orientation is given for both, PCs and PEs. The newly presented structural data deduced from the three-water region model will be useful for future refined molecular dynamics simulations and allow a better theoretical understanding of the attractive van der Waals force between adjacent membranes.
Catalytic hydrogenation of hemicellulosic sugars: reaction kinetics and influence of sugar structure on reaction rate
Authors: Freitas Victoria , Paez Ana , Fongarland Pascal , Philippe Régis , Vilcocq Léa
Published: May 2023

Hemicelluloses are a major part of lignocellulosic biomass. Different sugars can be obtained from hemicelluloses: xylose, arabinose, galactose, mannose, glucose. Their catalytic hydrogenation produces polyols: xylitol, arabinitol, dulcitol, mannitol, sorbitol, which are valuable chemicals and platform molecules. In this paper, the hydrogenation of sugars was investigated with a Ru/TiO2 catalyst. The influence of temperature, pressure, xylose concentration and catalyst amount was studied for xylose hydrogenation and a Langmuir-Hinshelwood kinetic model was designed. The comparative study of five hemicellulose sugars showed a strong impact of sugar structure on hydrogenation rate: hexoses (glucose, mannose, galactose) react slower than pentoses (xylose, arabinose).