bluuebunny/crossref_metadata_2025 huggingface dataset:
Standalone Photovoltaic Water Pumping System using Induction Motor Drive
Authors: ZOUGHAB Samir , BELHAOUCHET Nouri , SAYAH Samir
Published: September 2024

This paper presents a simple and efficient standalone photovoltaic (PV) water pumping system employing an induction motor drive. This system uses two power conversion stages linked by a DC-bus capacitor. The first is a DC-DC boost converter controlled by using a perturb-and-observe (P&O) maximum power point tracking (MPPT) technique; used to extract the available maximum power of the PV array. The second is a three-phase Pulse-Width Modulated Voltage Source Inverter (PWM-VSI) coupled to an induction motor for driving the centrifugal pump. This drive is controlled by the indirect field oriented control (FOC) which ensures high dynamic and static performances. The DC-bus voltage is regulated at a required level by using a proportional-integral (PI) controller. The reference speed is estimated from the affinity law and the DC-bus voltage control. The performances of the system are verified by digital simulation under Matlab/Simulink environment in steady-state and dynamic operating conditions.
Application of STPA for Comprehensive Risk Analysis of Naphtha Explosion Hazards
Authors: REHAIL Yasser , ZENNIR Youcef , TCHOUAR Noureddine
Published: September 2024

Chemical accidents always result in significant losses due to the flammable, explosive, and toxic characteristics of hazardous chemicals. Analysis of process safety parameters is an effective way to prevent hazardous chemical accidents and reduce losses. System-theoretic process analysis (STPA) is a newer hazard analysis technique that is based on systems theory. It has been shown to be effective in identifying hazards in other industries, but its application in oil and gas plants is still rare and limited due to systems complexities and other challenges. This paper aims to apply the STPA method to a complex system “column C-63” at the Skikda RA1K refinery to prevent the explosion scenario of naphtha. The results show that STPA was able to identify the root causes of the explosion scenario, which is important for preventing chemical risks.
Sulfonamides and sulfonate esters: Synthetic routes, proposed mechanisms, and crystallographic characterizations
Authors: Stenfors Brock Anton , Ngassa Felix Nyuangem
Published: September 2024

The sulfonamide and sulfonate moieties are key structural features in many pharmaceuticals, agrochemicals, and materials and have proven useful as synthetic precursors. In this review, synthetic routes for sulfonamides and sulfonate esters were examined to gain insight into the mechanism behind the sulfonylation of amines and alcohols, which remains largely unknown and highly dependent on the reaction conditions used. Furthermore, the review delves into crystallographic characterizations of previously reported sulfonamide and sulfonate ester compounds, unraveling trends associated with crucial steric and electronic factors that influence their crystallization. This exploration not only enhances our understanding of the structural nuances of these compounds, but also paves the way for informed design strategies in synthetic and medicinal chemistry. In essence, this review endeavors to provide a holistic perspective on sulfonamides and sulfonate esters, bridging the realms of synthesis, mechanism elucidation, and structural characterization.
Risk Management Analysis Based on ISO 31000:2018 at Andi Djemma Masamba Airport, Luwu Regency
Authors: Abd. Muin Suriati , Apryanto A Ade , Maulana Akbar
Published: September 2024

The density of activities that take place around the operating facilities at Andi Djemma Masamba Airport so that the Management of the Andi Jemma Airport Operator Unit (UPBU) Office has launched the development of Andi Djemma Masamba Airport as an aviation company so that it continues to carry out various facility improvements, especially in risk prevention with potential activities with high losses, therefore it is necessary to conduct research to find out how to map, risk assessment and design a risk control and mitigation system at the Operations facility at Andi Djemma Masamba Airport caused by activities that have the potential to cause risk. The stages of the risk management process refer to ISO 31000: 2018 including risk identification, risk analysis and risk evaluation. Expected impact and likelihood of occurrence are mapped through the risk matrix from the Federation Aviation Administration (FAA). The results showed that at the andi djemma masamba airport there were 6 events that fell into the red category, namely Aircraft accidents during take off/landing, Aircraft accidents in the apron area, Escape of dangerous goods into the aircraft, Fuel Spills on the Apron/Taxiway, Lack of building maintenance, The security inspection process is less than optimal.
Thinking Process Analysis Reflective Student in Solve Problem Non-routine on Probability Material
Authors: Asmaun Asmaun , Baharuddin Baharuddin
Published: September 2024

The problem faced by students in school is the lack of a thinking process that is able to link existing knowledge with problems that are rarely encountered before. The reflective thinking process is one of the important aspects in solving non-routine problems and can be viewed from students' mathematical abilities. Therefore, this study aims to describe the reflective thinking process of class XI IPA 1 students of SMAN 10 Makassar with high initial mathematical abilities in solving non-routine mathematical problems. This study is a descriptive study using a qualitative approach. The results obtained in this study are that students with three subjects with high initial mathematical abilities have a reflective thinking process in four problem-solving steps (polya) as follows (1) understanding the problem: (a) elaborative-creative thinking, (b) clarification-critical thinking, (c) critical-assessment thinking and (d) creative-laboratory thinking, all indicators are met by all subjects. (2) developing strategies: (a) inferential-critical thinking, (b) elaborative-creative thinking and (c) fluent-creative thinking, all indicators are met by all subjects except for the fluency indicator, there is one subject that does not meet it. (3) implementation strategy: (a) inferential-critical thinking is fulfilled by the subject, (b) flexible-creative thinking, only two subjects fulfill the indicators and (d) originality-creative thinking can only be fulfilled by one subject. (4) looking back: (a) elaborative-creative thinking and (b) critical thinking strategy, all indicators are fulfilled by the subject, but only one student checks the answer.
An Exploratory Study on The Presentation of Separate Financial Statements By Listed European Union Entities
Authors: WIERZBIŃSKI Marek , WIERZBIŃSKA Zofia
Published: September 2024

The International Accounting Standard (IAS) 27 should be used in the presentation of separate financial statements (SFS) for entities listed on regulated markets within the European Union (EU) that adopt the standards issued by the International Accounting Standards Board (IASB) as adopted by EU (hereinafter simply referred as IAS). This exploratory study aims to assess the entities in the listed EU indices that presented SFS under IAS. The study sample consists of entities from the major indices of EU countries for which the use of IAS in SFS is required or permitted, and it used a quantitative methodology, resorting to the method of documentary research. The findings show that most entities presented SFS, regardless of whether they were required or permitted, which is also consistent across countries. These results may indicate that the entities consider SFS relevant to provide information to stakeholders. Despite being a topic of increasing interest, a significant gap regarding the matters related to SFS remains in the literature. Consequently, this study, although exploratory, contributes to literature on the presentation of SFS by listed entities in Europe.
Competitive Advantage As A Key Factor In Shaping The Economic Security of Enterprises
Authors: Kunz Waldemar , Döring Adam
Published: September 2024

The modern economy is characterized by high volatility, and doing business under the current conditions is becoming an increasingly difficult task. Under such conditions, the competitive advantage of enterprises is gaining new importance, as a key tool for creating economic security for enterprises, especially in the current turbulent post-pandemic times and in the face of the energy crisis. The area of research covered the issue of competitiveness of enterprises in the development sector, due to the fact that the construction sector is a large component of the national gross product, thereby having a significant impact on the national economy, including the labor market. It also has a major impact on the country's infrastructure, including, among other things, aesthetic and environmental issues, which translate directly into the quality of life of citizens. And thirdly, small and medium-sized developers, which are the subject of this paper, are not frequent objects of analysis, so there is a perceived deficiency and gap in knowledge on this subject, which the author will try to explore. The purpose of this article is to identify the key factors shaping the competitive advantage of real estate development enterprises as a tool for shaping economic security. The research thesis is that the main source of competitive advantage of development sector enterprises is the intangible resources they possess.
Novel Time-Saving Technique to Measure the 2D Complex Profile of Spectral Transmittance of Linearly Variable Filters and Assessing Homogeneity of Optically Transparent Materials
Authors: Ahmed Khaled , AlMelfi Mohammad D. , AlFohaid Mohammed Z.
Published: September 2024

Emerging technologies for coating new types of filters, such as linearly variable bandpass filters, urges new kind of measurement systems requiring accurate and time-saving spatially resolved transmittance measurements. On the other hand, one of the main uses of coated filters is standardization use; e.g., as certified reference materials (CRMs) for transmittance and absorbance standards. In this case, the homogeneity assessment is of great interest. To do such measurements with low uncertainty, spatial scanning methods using reference double-beam spectrophotometers are routinely used. High time consumption and relatively high-cost are disadvantages of this traditional method. In this work, we propose a new system based on an imaging technique. The newly developed system comprises a quartz tungsten halogen (QTH)-based illuminator, with collimator and coupling optics, a double-grating monochromator, customized integrating sphere, and scientific highly digitized, high-resolution and dynamic range Si-based CCD (monochrome) camera. The system is time-saving: in one-shot we may measure the spatial transmittance distribution of the samples (e.g. filters) without separately measuring the reference (air), which has many instability issues. Validation measurements using standard filters are presented. Systematic errors may be studied and corrected for. Many types of filters and liquids, for instance chemical reference materials (RMs), may be measured and reported. Uncertainty of spatial, spectral and radiometric components are studied carefully and estimated. The combined uncertainty evaluation has shown that relatively low uncertainty levels may be achieved, specially in the visible range (U < 1 %, k=2 ). Spatially-resolved data with different curves at different positions (spatial points) are shown in the spectral range of 380 nm through 950 nm. The combined uncertainties at some spectral points are presented and proved to be sample- and wavelength-dependent at all the points in the field-of-view (FOV) of the CCD camera.
INCENTIVO A LEITURA NAS SALAS DE AULA: LÍNGUA PORTUGUESA E LITERATURA NO ENSINO FUNDAMENTAL
Authors: Barros Iracy Marinho , Dias Patricia da Cruz
Published: September 2024

Este artigo buscou discutir e evidenciar incentivo à leitura nas aulas de língua portuguesa e literatura. Com o objetivo de melhorar a capacidade discursiva dos alunos focando a prática da leitura como ferramenta que pode garantir a aquisição de todo e qualquer conhecimento, independente da área. Os conteúdos, as metodologias, as estratégias de ensino-aprendizagem, a avaliação do ensino é indispensável nas entidades educacionais em função de uma mudança na dificuldade de leitura e produção textual pelo aluno. Com isso utilizar-se de uma pratica pedagógica   coerente   e   de   aprimoramento   das   capacidades   sócio   cognitivas   não   totalmente desenvolvida. A metodologia partiu de uma revisão bibliográfica de natureza qualitativo-descritiva foi realizada através da utilização das bases de dados Scielo e Google Acadêmico para busca dos artigos relacionados ao estudo.   Visando   alcançar   os   objetivos   propostos   neste   trabalho   e   responder a problemática inicial utilizou-se como fonte de pesquisa e embasamento autores que já discorreram sobre o assunto. Como hipóteses e apontamentos para resolução da problemática inicial discorreu-se sobre as   questões   norteadoras   do   trabalho, no   tocante   incentivo   à   leitura   nas   aulas   de   língua portuguesa e literatura, tanto no ensino fundamental quanto no ensino médio.
IMPACTO DAS INTERVENÇÕES NUTRICIONAIS NA GESTÃO DA SÍNDROME DO INTESTINO IRRITÁVEL: UMA REVISÃO INTEGRATIVA
Authors: Mariano Maria Eduarda Oliveira , Nakagawa Frederico Noboro Figueiredo , Vicentini Miguel Miranda , Penna Paula Farani Fortes
Published: September 2024

A síndrome do intestino irritável (SII) é um distúrbio gastrointestinal funcional caracterizado por dor abdominal, distensão, e alterações no hábito intestinal, cuja etiologia envolve múltiplos fatores, como disbiose intestinal e hipersensibilidade visceral. As intervenções nutricionais emergem como abordagens não farmacológicas eficazes para o manejo dos sintomas. Esta revisão integrativa teve como objetivo avaliar o impacto de diferentes estratégias nutricionais na gestão da SII, com ênfase na dieta de baixo FODMAPs, probióticos, exclusão de glúten e suplementação de fibras. A pesquisa foi conduzida em bases de dados científicas como PubMed, Scopus e Cochrane, incluindo estudos publicados entre 2010 e 2023. Os resultados mostraram que a dieta de baixo FODMAPs é a intervenção mais eficaz na redução de sintomas, enquanto o uso de probióticos específicos, como Bifidobacterium infantis, também apresenta benefícios significativos. A exclusão de glúten parece ser eficaz apenas para um subgrupo de pacientes, e a suplementação de fibras solúveis mostrou melhorar a constipação em indivíduos com SII. A individualização das intervenções nutricionais, com base no perfil clínico e microbiológico de cada paciente, é fundamental para otimizar os resultados.
Elemental stoichiometry of particulate organic matter across the Atlantic Ocean
Authors: Fagan Adam J. , Tanioka Tatsuro , Larkin Alyse A. , Lee Jenna A. , Garcia Nathan S. , Martiny Adam C.
Published: September 2024

Abstract. Recent studies show that stoichiometric elemental ratios of marine ecosystems are not static at Redfield proportions but vary systematically between biomes. However, the wider Atlantic Ocean is undersampled for particulate organic matter (POM) elemental composition, especially when it comes to phosphorus (i.e., POP). Thus, it is uncertain how environmental variation in this region translates into shifts in the C:N:P ratio. To address this, we analyzed hydrography, genomics, and POM concentrations from 877 stations on the meridional transects AMT28 and C13.5, spanning the Atlantic Ocean. We observed nutrient-replete, high-latitude ecosystem C:N:P to be significantly lower than that in the oligotrophic gyres. Latitudinal and zonal differences in elemental stoichiometry were linked to overall nutrient supply as well as N vs. P stress. C:P and N:P were generally higher in the P-stressed northern region compared to Southern Hemisphere regions. We also detected a zonal difference linked to a westward deepening nutricline and a shift from N to P stress. We also evaluated possible seasonal changes in C:N:P across the basin and predicted these to be limited. Overall, this study confirms latitudinal shifts in surface ocean POM ratios but reveals previously unrecognized hemisphere and zonal gradients. This work demonstrates the importance of understanding how regional shifts in hydrography and type of nutrient stress shape the coupling between Atlantic Ocean nutrient and carbon cycles.
Modelling the Impact of Palaeogeographical Changes on Weathering and CO2 during the Cretaceous-Eocene Period
Authors: Hayes Nick R. , Lunt Daniel J. , Goddéris Yves , Pancost Richard D. , Buss Heather L.
Published: September 2024

Abstract. The feedback between atmospheric CO2 concentrations and silicate weathering is one of the key controls on the long term climate of the Earth. The potential silicate weathering flux (as a function of conditions such as temperature, runoff, and lithology), or "weatherability", is strongly affected by continental configuration, and thus the position of continental landmasses can have substantial impacts on CO2 drawdown rates. Here, we investigate the potential impact of palaeogeograpical changes on steady-state CO2 concentrations during the Cretaceous-Eocene period (145–34 Ma) using a coupled global climate and biogeochemical model, GEOCLIM, with higher resolution climate inputs from the HadCM3L General Circulation Model (GCM). We find that palaeogeograpical changes strongly impact CO2 concentrations by determining the area of landmasses in humid zones and affecting the transport of moisture, that runoff is a strong control on weatherability, and that changes in weatherability could explain long term trends in CO2 concentrations. As Pangaea broke up, evaporation from the ocean increased and improved moisture transport to the continental interiors, increasing runoff rates and weathering fluxes, resulting in lower steady-state CO2 concentrations. Into the Cenozoic however, global weatherability appears to "switch" regimes. In the Cenozoic, weatherability appears to be determined by increases in tropical land area, allowing for greater weathering in the tropics. Our modelled CO2 concentrations show some strong similarities with estimates derived from proxy sources. Crucially, we find that even relatively localised changes in weatherability can have global impacts, highlighting the importance of so-called weathering "hot-spots" for global climate. Our work also highlights the importance of a relatively high-resolution and complexity forcing GCM in order to capture these hot-spots.
Climate Change and Farmer Livelihoods in Wayanad, India: A Livelihood Vulnerability Index Assessment
Authors: Kumbrottil Sundaran Nikhil , Radhakrishnan Aparna , Ravindran Dileepkumar , Palackal Bonny Binoo , Vijayan Nandini Navitha
Published: September 2024

Abstract. This study investigates the intricate relationship between climate change and livelihood vulnerability in the Wayanad district of Kerala, employing a Livelihood Vulnerability Index (LVI) to assess the household-level vulnerability of local farmers. A total of 41 indicators were used to construct the vulnerability index for the farmers of the Western Ghat region, with 16 indicators related to sensitivity, 7 to exposure, and 18 to adaptive capacity, and the index is administered to the farmers of Wayanad, Kerala. The results indicate a high level of vulnerability among most farmers, with exposure and sensitivity to climate risks, such as floods and droughts, significantly outweighing their adaptive capacity. The findings reveal that a substantial proportion of rural households are highly exposed to adverse climate change risks and lack the social, physical, and financial capital to effectively mitigate these challenges. The region's geographic and climatic conditions further exacerbate these vulnerabilities. Given the heavy reliance on agriculture for livelihoods in Wayanad, these results underscore the urgent need for targeted policy interventions to enhance the resilience of these communities.
Event-based wave statistics for the Baltic Sea
Authors: Björkqvist Jan-Victor , Kanarik Hedi , Tuomi Laura , Niskanen Lauri , Kankainen Markus
Published: September 2024

Abstract. Typical statistics, such as mean or percentiles, provide an excellent baseline for studying variations and changes in physical variables that have socioeconomic relevance. Nonetheless, they lack information on how often, and for how long, a certain wave height is exceeded, which might be needed for practical applications, such as planning marine operations. Using a 29-year wave hindcast, we determined the individual events where the significant wave height exceeded warning thresholds for Baltic Sea marine traffic (2.5, 4, and 7 m). During the summer months (JJA), the significant wave height exceeded 2.5 m less than twice a month. During the winter months (DJF), a significant wave height of 2.5 m was exceeded on average once a week in the larger Baltic Proper and Bothnian Sea sub-basins. Events with wave heights of over 7 m occurred roughly once every other year in the larger sub-basins. Our case study for fish-farm-related operations compared two sites that are located 10 and 30 km from the coast in the Bothnian Sea, where we determined wave events that could affect operations at the cage – meaning a significant wave height over 1 m. During the growth period of rainbow trout (May–October) there were roughly twice as many possibly disruptive events at the location further offshore than at the location closer to the coast. Even at the less-exposed location half of the wave events lasted more than 12 h, with a few events in September and October lasting around a week.
Monitoring global ocean heat content from space geodetic observations to estimate the Earth energy imbalance
Authors: Marti Florence , Meyssignac Benoit , Rousseau Victor , Ablain Michaël , Fraudeau Robin , Blazquez Alejandro , Fourest Sébastien
Published: September 2024

Abstract. This study presents an improved space geodetic approach to estimate the global ocean heat content (GOHC) change and the Earth energy imbalance (EEI) over 1993–2022. The EEI exhibits a positive trend of 0.29 W m−2 per decade, significant at the 90 % confidence level, indicating accelerated ocean warming in line with independent Clouds and the Earth's Radiant Energy System (CERES) data. The study highlights the importance of comparing various estimates (e.g. in-situ-based GOHC) and their uncertainties to reliably assess EEI changes.
Oceanographic preconditions for planning seawater heat pumps in the Baltic Sea – an example from the Tallinn Bay, Gulf of Finland
Authors: Elken Jüri , Maljutenko Ilja , Lagemaa Priidik , Uiboupin Rivo , Raudsepp Urmas
Published: September 2024

Abstract. The use of low-temperature seawater heat for renewable energy installations is demonstrated with an example from the Tallinn Bay, Baltic Sea, based on Copernicus Marine Service reanalysis data. Tallinn and its surrounding seaside counties are home to about half a million people and produce about half of Estonia's gross domestic product (GDP). The Tallinn Bay with an area of 223 km2 extends to the north and has an open connection to the Gulf of Finland. Depths more than 50 m that cover the halocline already appear at a distance of 3–4 km from the coast. Surface layers get too cold during winter to be used in heat pumps for district heating; therefore, a feasible option is to pump slightly warmer seawater from the deeper halocline layers. The lowest monthly mean halocline temperature – down to 2.6 °C at 50 m depth and 3.3 °C at 70 m – is found in March and April based on reanalysis data from 1993–2019. The seawater seasonally cools below 3 °C on average on 1 January at 20 m depth and on 12 February at 50 m depth. At the 70 m depth, the average start of T<3 °C was calculated on 28 February, although only 14 winters out of 26 had such water present; in 12 winters the condition T>3 °C was always fulfilled. The median number of cold days is 11, with a maximum of 128 d in the winter 1993/1994 when stratification became rather weak due to the prolonged absence of Major Baltic Inflows of saltier and warmer North Sea waters. During the recent warmer period of 2009–2019, the start of the cold seawater period was delayed on average by 5–10 d. Tallinn has, among other Baltic Sea cities and industrial sites, a favorable location for seawater heat extraction because of the short distance to the unfreezing sub-halocline layers. Still, episodically there are colder-water events with T<3 °C, when seawater heat extraction has to be complemented by other sources of heating energy.
Traversées postcoloniales : Littérature francophone et résonance historique depuis Batouala à Boza !
Authors: Edoh Ernest
Published: September 2024

Cet article explore la manière dont la littérature francophone postcoloniale, à travers des œuvres emblématiques telles que Batouala de René Maran et Boza! d'Ulrich Cabrel et Étienne Longueville, redéfinit les récits historiques et les dynamiques de pouvoir héritées de la colonisation. En analysant ces textes sous l’angle des théories décoloniales de Walter Mignolo, Nelson Maldonado-Torres, et Ramón Grosfoguel, l'étude démontre comment ces romans transforment les récits de domination en plateformes de résistance et de résilience. En mettant en lumière les expériences des marginalisés, cette littérature engage une réécriture de l’histoire où les voix longtemps invisibilisées deviennent centrales dans la construction d'une histoire mondiale inclusive. De la critique des épistémicides dans Batouala à la dénonciation de la colonialité de l'être dans Boza!, ces œuvres montrent comment la littérature peut participer activement à la décolonisation des savoirs et des êtres dans un contexte contemporain marqué par les luttes pour la reconnaissance et la justice sociale.
Pengaruh Kepemimpinan Islami, Perilaku Organisasi, Job Embeddedness Terhadap Komitmen Organisasi Dan Kinerja Pegawai Pada PT.Bank Negara Indonesia (Persero) Tbk. Cabang Baubau
Authors: Rahmat Ferdyansyah  , Salim Basalamah  , Achmad Gani  , Bahar  Sinring
Published: September 2024

Adapun temuan peneliti dalam penelitian ini yang berdasarkan hasil penelitian dan pengujian hipotesis yang berjumlah sepuluh hubungan, baik hubungan secara langsung maupun hubungan tidak langsung dari hasil pengumpulan data empiris antara data primer yaitu dalam hal ini hasil kuesioner dan data sekunder sebagai data pendukung telah diolah menggunakan analisis SEM yang menunjukkan hasil bahwa dari sepuluh hubungan antar variabel, terdapat satu hubungan langsung yang berpengaruh positif tapi tidak sigifikan. Keseluruhan hubungan tersebut antara lain: Membuktikan secara empiris bahwa Kepemimpinan islami memiliki pengaruh yang nyata untuk meningkatkan komitmen organisasi, hal ini menunjukkan bahwa kepemimpinan islami yang diterapkan di BNI Kantor Cabang Baubau telah berjalan dengan baik. Hal ini dikarenakan fungsi kepemimpinan yang dijalankan adalah kepemimpinan islami dengan mengedepankan sifat tabligh (menyatakan kebenaran), fatahanah (cerdas), siddiq (jujur) dan amanah (bertanggungjawab) sehingga mampu meningkatkan komitmen organisasi pegawai dalam bekerja. Membuktikan secara empiris bahwa Kepemimpinan Islami tidak nyata perngaruhnya terhadap peningkatan kinerja pegawai, Ini menunjukkan bahwa fungsi kepemimpinan islami yang diterapkan di BNI Kantor Cabang Baubau masih berproses karena perubahan dilakukan secara mendasar dan bertahap (evolution) dan tidak menggunakan kekerasan sehingga dengan penerapan kepemimpinan islami yang menjalankan tabligh (menyampaikan kebenaran), fathanah (cerdas), siddiq (jujur) dan amanah (bertanggungjawab) kepada pegawai maka terbentuk komitmen organisasi yang kuat dari pegawai sehingga memberikan dampak untuk peningkatan kinerja. Membuktikan secara empiris bahwa Kepemimpinan islami memilki pengaruh  terhadap kinerja pegawai melalui komitmen organisasi. Hal ini berarti bahwa fungsi kepemimpinan islami yang diterapkan di BNI Kantor Cabang Baubau mampu meningkatkan komitmen organisasi pegawai yang berdampak pada kinerja pegawai yang semakin baik. fungsi kepemimpinan islami meningkatkan komitmen organisasi, dengan meningkatnya komitmen organisasi maka kinerja pegawai akan meningkat.
Pengaruh Motivasi, Kompetensi, dan Lingkungan Kerja terhadap Kinerja Pegawai
Authors: Kariyamin Kariyamin , Hamzah Nasir , Lantara Niniek
Published: September 2024

Penelitian ini bertujuan untuk menguji sejauh mana pengaruh motivasi, kompetensi, dan lingkungan kerja terhadap kinerja pegawai Badan Pengelola Pajak dan Retribusi Daerah Kota Kendari Sulaweis Tenggara. Pengumpulan data dilakukan melalui penyebaran kuesioner dan dilaksanakan pada 33 pegawai Badan Pengelola Pajak dan Retribusi Daerah Kota Kendari Sulaweis Tenggara. Analisis data pada penelitian ini menggunakan bantuan program SPSS versi 24. Teknik sampling yang dipakai adalah metode sensus dan teknik pengujian data yang digunakan dalam penelitian ini meliputi Uji asumsi klasik dan analisis regresi linier berganda, untuk menguji dan membuktikan hipotesis penelitian. Hasil analisis menunjukkan bahwa secara simultan motivasi, kompetensi, dan lingkungan kerja berpengaruh terhadap kinerja pegawai dan secara parsial yang berpengaruh dominan terhadap kinerja pegawai adalah motivasi.
This study aims to examine the extent of the influence of motivation, competence and work environment on the performance of employees of the Southeast Sulawesi Sulaweis City Kendari Management and Retribution Agency. Data collection was carried out through questionnaires and was carried out on 33 employees of the Southeast Sulawesi Sulaweis City Regional Tax and Retribution Management Agency. Data analysis in this study used SPSS version 24. The sampling technique used was the census method and data testing techniques used in this study include the classic assumption test and multiple linear regression analysis, to test and prove the research hypothesis. The analysis shows that simultaneous motivation, competence, and work environment influence employee performance and partially the dominant influence on employee performance is motivation.
Pengaruh Kinerja Keuangan dengan Pendekatan Dupont System Terhadap Harga Saham Pada Perusahaan Industri Perbankan di Indonesia Stock Exchange (IDX)
Authors: Wilda  , Abdul Rahman Mus  , Serlin Serang
Published: September 2024

Penelitian ini dilakukan dengan tujuan untuk menguji dan menganalisis pengaruh kinerja keuangan dengan pendekatan dupont system terhadap harga saham. Populasi dalam penelitian adalah perusahaan industri perbankan yang terdaftar di Indonesia Stock Exchange periode 2015 sampai dengan 2021. Metode pemilihan sampel adalah purposive sampling. Sampel yang digunakan sebanyak 5 perusahaan. Metode yang digunakan dalam penelitian ini adalah metode regresi berganda menggunakan Statistical Product and Service Solutions (SPSS), pengujian hipotesis menggunakan uji koefisien determinasi, uji t, dan uji F. Hasil penelitian menunjukkan bahwa secara simultan Net Profit Margin (NPM), Total Asset Turnover (TATO), Equity Multiplier (EM) dan Return on Asset (ROE) berpengaruh positif dan signifikan terhadap harga saham. Secara parsial variabel Net Profit Margin (NPM) berpengaruh positif signifikan terhadap harga saham, Total Asset Turnover (TATO) berpengaruh positif tidak signifikan terhadap harga saham, Equity Multiplier (EM) berpengaruh positif tidak signifikan terhadap harga saham dan variabel Return on Equity (ROE) berpengaruh negatif signifikan terhadap harga saham.
واقع الأمن السيبراني في التعليم وعلاقته بالأمن النفسي من وجهة نظر المعلمات بدولة الكويت
Authors:   دكتوراه الفلسفة في التربية تخصص الصحة النفسية، مدرب معتمد ومستشار تربوي، معلمة بوزارة التعليم بالكويت، عضو في جمعية علم النفس الكويتية، دولة الكويت, العازمي عائشة
Published: September 2024

هدفت الدراسة إلى التعرف على واقع الأمن السيبراني وعلاقته بالأمن النفسي والتحديات التي تواجه تفعيله في التعليم داخل دولة الكويت والآليات المقترحة لتفعيله في مدارس الكويت من وجهة نظر المعلمات، ولتحقيق أهداف الدراسة تم استخدام المنهج الوصفي الارتباطي واستبانة الأمن السيبراني ومقياس الأمن النفسي بعد ضبط خصائصهما السيكومترية ليناسبا عينة الدراسة، على عينة مكونة من (353) معلمة من معلمات المرحلة الثانوية في محافظة الفروانية في دولة الكويت، وقد توصلت الدراسة إلى ارتفاع وعي المعلمات بأساسيات الأمن السيبراني، كما توصلت إلى عدد من التحديات التي تواجه تفعيل الأمن السيبراني في المدارس منها: عدم توفير المدرسة لبرمجيات حماية حديثة مع قلة وعي بعض المعلمين حول مخاطر الأمن السيبراني وتوصلت إلى عدد من الآليات المقترحة لتفعيل الأمن السيبراني في مدارس دولة الكويت، وأظهرت النتائج وجود علاقة ارتباطية ذات دلالة إحصائية عند مستوى دلالة (0.05) موجبة بين الوعي بالأمن السيبراني والأمن النفسي عند المعلمات بدولة الكويت. وفي ضوء ما توصلت له الدراسة توصي الباحثة بالتأكيد على ضرورة اهتمام (مركز الأمن الوطني السيبراني NCSC)، وزارتي التربية والتعليم العالي بتطبيق الاستراتيجية الوطنية للأمن السيبراني والعمل بها، وحماية أنظمة المعلومات الإداريـــة بالجامعات والمؤسسات التعليمية، وإدراج مجال الفضاء السيبراني ضمن مناهج التعليم في دولة الكويت، وكذلك تشجيع بحوث ودراسات الأمن السيبراني في أطروحات الماجستير والدكتوراه، وتشجيع مجالات البحث العلمي والابتكار في مجال الأمن السيبراني، وتوعية العاملين بكافة مؤسسات الدولة وتنمية المعايير المهنية الاحترافية لديهم وإرســــاء بنية تحتية للدخول إلى مجال صناعة البرمجيات العالمية والقدرة على منافسة المنتج المستورد، و عقد دورات تدريبية وورش لتوعية الطلبة والمعلمات والعاملين في مجال التعليم بمفهوم الأمن السيبراني، وتعزيز تمويل الأبحاث العلمية في مجال الأمن السيبراني.
الفصل في المنازعات التأمينية في المملكة العربية السعودية (دراسة تحليلية)
Authors:   باحث ماجستير، قسم القانون الخاص، كلية الحقوق، جامعة الملك عبد العزيز، جدة، المملكة العربية السعودية, العصلاني عبد الله
Published: September 2024

تناولت هذه الدراسة البحثية مسألة الفصل في المنازعات التأمينية في المملكة العربية السعودية انطلاقاً من أهمية قطاع التأمين وتسارع نموه وضرورته القصوى في استقرار الأعمال التجارية والأنشطة الاقتصادية والتنمية الاجتماعية، وذلك من خلال المنهج التحليلي للأنظمة والقرارات والقواعد المنظمة للقطاع التأميني في المملكة، مستعرضاً الأساس النظامي لها ومتطرقاً لقواعد الاختصاص المكاني والاختصاص الولائي فيها وللقواعد الإجرائية المتعلقة برفع دعاويها؛ وقد تم تقسيمها إلى ثلاث مباحث واحتوى كل مبحث على عدة مطالب، حيث جاء المبحث التمهيدي عن جهة الفصل في المنازعات التأمينية، وجاء المبحث الأول عن اختصاصات وإجراءات عمل لجان الفصل في المنازعات والمخالفات التأمينية، فيما استعرض المبحث الثاني بعض السوابق القضائية التأمينية الصادرة من لجان الفصل في المنازعات والمخالفات التأمينية؛ وقد خرجت الدراسة بعدة نتائج كان من أبرزها عدم ورود تعريف صريح للمنازعات التأمينية في الأنظمة السعودية، تولي لجان شبه قضائية مختصة وهي اللجان الابتدائية في الفصل في المنازعات والمخالفات التأمينية واللجنة الاستئنافية للفصل في المنازعات والمخالفات التأمينية اختصاص الفصل في المنازعات التأمينية وفق قواعد وإجراءات معدة لذلك، ومراعاة المنظم السعودي لأهمية انسجام الأنظمة السعودية وتكاملها ومن ذلك موائمة قواعد وإجراءات الفصل في المنازعات التأمينية لمضمون مواد نظام المرافعات الشرعية، كما خرجت الدراسة بعدة توصيات كان من أبرزها النظر في إمكانية تعديل أحد مواد قواعد إجراءات الفصل في المنازعات والمخالفات التأمينية بتحديد التقويم الميلادي كتقويم معتمد لاحتساب المدد المتعلقة بالمنازعات التأمينية، وتعديل أحد مواد نظام مراقبة شركات التأمين التعاوني بما يفيد باقتصار المنازعات المعنية في النظام على ما كان متعلقاً منها بعقود أو نشاط التأمين، وإضافة ما يشير إلى الأخذ بطرق الاثبات الواردة بنظام الاثبات في أحد مواد قواعد وإجراءات الفصل في المخالفات والمنازعات التأمينية.
العوامل المؤثرة في تنمية الرضا الوظيفي لدى معلمات المرحلة الابتدائية بدولة الكويت
Authors:   دكتوراه الفلسفة في التربية تخصص الصحة النفسية، معلمة علوم بدولة الكويت ومدرب معتمد في التنمية البشرية وعضو في جمعية علم النفس الكويتية، دولة الكويت, العنزي ريم
Published: September 2024

هدفت الدراسة الحالية إلى التعرف على العوامل المؤثرة في تنمية الرضا الوظيفي لدى معلمات مرحلة التعليم الابتدائي بدولة الكويت، والتعرف على مدى اختلاف الرضا الوظيفي لدى المعلمات باختلاف (مستوى الخبرة، المؤهل الدراسي، السن)، بالإضافة إلى اقتراح سبل تحقيق الرضا الوظيفي لدى معلمات المرحلة الابتدائية بدولة الكويت، ولتحقيق أهداف الدراسة تم استخدام المنهج الوصفي المسحي، ومقياس الرضا الوظيفي لفوزي عكاشة وحسين مصطفى (2008) على عينة مكونة من (210) معلمة من معلمات المرحلة الابتدائية بمحافظة الجهراء بالكويت، وقد توصلت الدراسة إلى ارتفاع مستوى الرضا الوظيفي بشكل عام، وأن مدى الرضا الوظيفي لا يختلف أو يتأثر باختلاف مستوى الخبرة والمؤهل الدراسي عند معلمات المرحلة الابتدائية بدولة الكويت، كما أظهرت النتائج الإحصائية وجود فروق ذات دلالة إحصائية عند مستوى دلالة (0.05) بين متوسطات استجابات أفراد العينة على مقياس الرضا الوظيفي تبعاً لمتغير السن، كما أظهرت أن هذه الفروق جاءت لصالح الفئة العمرية من (من 36 – 45)، وأظهرت نتائج تحليل السؤال المفتوح حول الاقتراحات لسبل تحقيق الرضا الوظيفي من وجهة نظر أفراد العينة أن أغلب الاقتراحات تمحورت حول التغييرات الإدارية و توفير الإمكانات والاهتمام بالمركز الاجتماعي والمكافآت للمعلمات المتميزات. وفي ضوء نتائج الدراسة توصي الباحثة بضرورة تحقيق التواصل والتعاون بين الإدارة المدرسية والمعلمات، وأن تقوم الإدارة المدرسية بتقدير المعلمات المتميزات مادياً ومعنوياً، بالإضافة إلى التأكد من توافر الإمكانات اللازمة داخل المدارس لتتمكن المعلمة من الإبداع في العمل، وهذا من شأنه تحقيق الرضا الوظيفي، وضرورة تسليط الضوء على الرضا الوظيفي في المؤسسات وإقامة ورشات عمل تدريبية حول أهميته في تطوير المدارس، وكذلك عمل دورات تدريبية للمعلمات على كيفية تنفيذ برامج التدريب التي تساعد في تحسين الرضا الوظيفي في المرحلة الابتدائية.
Teacher Observation Skills Scale: Validity and Reliability
Authors: Cetin Abdullah
Published: September 2024

The present research aims to develop a valid and reliable instrument to measure teacher observation skills. The research was conducted during the 2023-2024 academic year with a total of 648 teachers. Data were collected through online survey methods. Expert opinion was consulted for the content and face validity of the scale in the research. Exploratory (EFA) and Confirmatory Factor (CFA) analyses were performed to assess the construct validity of the scale.  Based on the results, it was found that the scale had a structure consisting of two dimensions and 18 items. It was determined that the factor loadings of the items in the scale were between .70 and .93. Considering the relevant literature, it was decided to name these dimensions as "natural observation skill" (NOS) and "scientific observation skill" (SOS). The Cronbach Alpha for the scales were both .95. As a result of the research, a valid and reliable scale that can determine the level of teachers' observation skills was developed.
The Effect of Digital Content on Listenig Skills in Middle School Turkish Teaching
Authors: Özcan Muhammet , Yavuz Serdar
Published: September 2024

The course of development of technology, its speed in the recent period and the point it has reached have led to the fact that our relationship with technology has become a necessity rather than a choice. In this respect, teaching activities that are not intertwined with technology and do not include digital elements will remain as practices that will not go beyond the interests and expectations of students who are the subjects of educational environments. This study, which examines the effect of digital content on listening skills in secondary school Turkish teaching, is at an important point in terms of showing the effect of digital elements on the listening skill, which is the first learning channel of human beings and will continue until death, and it is an issue that should be emphasized carefully in terms of forming the basis for other language skills. The sample of this study consists of 60 students studying in the seventh grade of a secondary school in Elazığ province. In the study, mixed research method was preferred as the method and sequential exploratory design was preferred as the design. Quasi-experimental design was used in the quantitative part of the study and phenomenology design was used in the qualitative part. There was one control and one experimental group in the quantitative part of the study. In order to obtain quantitative data within the scope of the study, the Listening Skills Scale developed by Yalçın and Özcan (2022) was applied to the control and experimental groups as pre-test and post-test. The experimental and control groups were determined according to the pre-test results of the students participating in the study. In the qualitative part of the study, data were obtained from interviews with the students and these interviews were analyzed by content analysis. The results of the study showed that there was a significant difference between the listening skill scale scores of the students in the experimental and control groups in favor of the experimental group in the post-test application, there was a significant increase between the pre-test and post-test scores of the listening skill scale applied to the control group, and there was a significant difference between the listening skill scale scores of the experimental group before and after the application. Considering the results obtained from the interviews, it was seen that listening practices enriched with digital content facilitated comprehension, digital content practices improved listening skills and created a desire to participate in new activities. At the end of the study, suggestions were made for researchers, educators and related institutions.
Utilization of Short Span Web-Tapered Beams Using Flexible Nodal Bracing
Authors: Kömürcü Fatma , Togay Oğuzhan
Published: September 2024

For many years member with varying cross-sectional dimensions along the length have been widely used in steel structures. The use of nodal braces to enhance the load-carrying capacity and stability of these elements is prevalent. These supports ensure structural stability by regulating the distribution of loads within the structural system while also enhancing the structure's resistance to lateral loads. Presently, the design of these nodal braces are carried out according to requirements outlined in Design Guide 25 and AISC Specification (2022). However, these standards offer a general framework for elements with fixed brace conditions and prismatic cross-section. This study aims to be a pioneering investigation into the variation of brace force values in short-span and compact web-tapered beams under different loading conditions. The article seeks to comprehensively examine the requirements and limits of brace force in short-span web-tapered compact beams. To achieve this goal, parametric finite element analyses is utilized to explore how brace force changes concerning beam geometry, material properties, and loading conditions. The beam used was considered as doubly symmetric and divided into 100 nodes and supported by a nodal brace at the middle node. The beam is 50 inches long, tapering from 42 inches to 36.40 inches over its span of 100 nodes. In terms of finite element analysis, the software utilized significantly influences the accuracy and reliability of results, particularly in scenarios involving inelastic nonlinear analysis. In this study, the Abaqus program was employed specifically to conduct parametric finite element analyses, considering the complexities of inelastic material behavior. The findings of this research are intended to contribute to the development of a new design method for determining the requirements and limits of brace force in short-span and variable cross-sectional dimension compact beams. Consequently, the aim is to enable the safe and economical design of such beams, providing engineers with ideas to consider and data to utilize in their designs.
Methodological problems of domestic economic science
Authors: Simchenko Nataliya , Blagih Ivan , Malyushin Ivan
Published: September 2024

The article is devoted to the study of methodological problems of domestic economic science. Modern economic science in Russia is going through a difficult stage of its transformation. The rejection of Western mentoring and the transition to sovereign thinking caused the renewal of theoretical views and practical approaches to solving economic problems. This could not but cause a close interest in the methodological foundations on which the science of economy is based. At the same time, many economists are still at a loss as to where to look for the necessary methodology: in philosophy, in history, in conceivable economic-theoretical constructions, or in something else. It should be kept in mind that the methodology of economic research belongs to the basic foundations of economic science and is the meta-theoretical level of economic knowledge. It is at this level that the trajectory of economic development and reflection on the practice of modernity are synthesised, from which, in turn, the principles, conclusions and proofs of many economic statements, theorems and theories are derived. The authors believe that dialectical-materialist methodology has not exhausted all its resources and possibilities and as a method of research of modern transformations occurring in the sphere of domestic economy, it may well serve as a guide to the creation of national economic theory.
Institutional approach to determining the structure of national wealth
Authors: Chihireva Natal'ya
Published: September 2024

In economic theory, there are various approaches to determining the structure of a country’s national wealth, many of which are based solely on quantitative indicators. At the same time, traditional economic models do not take into account new factors in the development of national wealth, such as environmental services and digital assets. It seems that despite methodological limitations, the structure of national wealth should include the value of intangible assets, such as intellectual property, human and social capital. Due to the need to take into account multiple aspects and intangible benefits when forming the structure of a country’s national wealth, the authors proposed an institutional approach to determining the structure of national wealth, which is based on an assessment of the institutions and institutional environment that form the self-sufficiency of the national economy.
The article discusses the main problems of modern society, which require investment in their elimination and, as a result of a decrease in the share of the country’s national wealth, the problem of measuring the country’s national wealth, due to the undeveloped methods for measuring modern conditions, which are mostly associated with the digitalization of economic, social and political processes, the structure of the country’s national wealth in the digital economy is proposed, an institutional approach to determining the structure of national wealth, based on the principle of self-sufficiency of the country’s economy, is proposed and justified.