bluuebunny/crossref_metadata_2025 huggingface dataset:
The impact of everyday usage of different dental implant torque wrenches on their performance accuracy and repeatability: An in vitro study
Authors: Ilic Gavrilo , Milic-Lemic Aleksandra , Vulovic Stefan , Markovic Aleksa , Lazic Zoran , Dragovic Miroslav , Todorovic Aleksandar
Published: July 2024

Background/Aim. The clinical success of prosthetic rehabilitation that commences after the attained implant osseointegration is dependent on the influence of several factors, of which screw loosening is a frequent one, and it is highly related to inadequate tightening (torquing) using torque wrenches. Although the wrenches are initially calibrated by the manufacturer, it is of great importance to evaluate their function after usage for a certain period of time. The aim of this study was to evaluate the accuracy and repeatability of the performance of implant torque wrenches in delivering necessary torque values before and after one year of usage. Methods. Two types of wrenches were used in the study: the beam-type and the toggle-type. Four various brands of beam-type wrench were marked as Beam 1 ? Beam 4, and three various brands of toggle-type wrench were marked as Toggle 1 ? Toggle 3, according to their design. Torque values delivered by wrenches were measured and analyzed using the One-Sample t-test, Independent-Samples t-test, and Mann-Whitney U test. The Bland-Altman bias test was used as an index of accuracy, whereas Forkman?s comparison of datasets coefficients of variation (CV) served as an index of repeatability. Results. All wrenches except new Beam 2 and Beam 3 showed differences between the average measured torque value and target torque value. Differences were found in the average measured values between all used and new wrenches. Higher bias was observed in Toggle 1, Toggle 2, and Toggle 3 brands, whereas lower bias was recorded between used and new Beam 1 and Beam 3 wrenches. When comparing the CV for used and new wrenches, Beam 1, Beam 4, Toggle 1, and Toggle 2 revealed differences, whereas the CV for Beam 2, Beam 3, and Toggle 3 did not differ significantly. Conclusion. Compared to toggle-type, the beam-type wrenches offer greater accuracy in achieving the target torque value. The torque deteriorates in all wrenches after aging/usage and is more prominent in toggle-type devices.
Cutaneous T-cell Lymphoma Diagnostic and Therapeutic Trends amidst the COVID-19 Pandemic
Authors: Roccuzzo Gabriele , Macagno Nicole , Sarda Cristina , Pisano Jelena , Ribero Simone , Fava Paolo , Quaglino Pietro
Published: July 2024

Abstract is missing (Short communication)
VALUASI EKONOMI DAN DAMPAK WISATA PANTAI TANJUNG PASIR TERHADAP SOSIAL EKONOMI MASYARAKAT SEKITAR DI KABUPATEN TANGERANG
Authors: Futakhah Siti , Prasmatiwi Fembriarti Erry , Marlina Lina
Published: July 2024

This study aims to examine the factors that influence the number of tourists who visit Tanjung Pasir Beach, the economic value of tourism, and the impact of tourism on Tangerang Regency's economy. A survey was used in this study, with 77 visitors, 15 businessmen, and a tourism manager responding to the survey. The Tanjung Pasir Beach was selected intentionally as the location for the research. The collection of data was conducted in January - February 2023. This study employed the travel cost, multiple linear regression, and Keynesian multiplier effect as data analysis techniques. The findings revealed that visitors spent IDR102,493.51 per individual per visit on transportation. Distance, age, income, travel costs, facilities, and infrastructure are all factors that influence the number of tourist visits. The result of the calculation of travel cost using TCM on Tanjung Pasir Beach has a yearly economic value of IDR 44,801,325,052. The multiplier effect is used to estimate the economic impact of Tanjung Pasir Beach tourism, which has a direct impact of IDR 193,031,663.83 per month, an indirect impact of IDR 116,505,417.50 per month, and a secondary impact of IDR 80,166,666.67 per month. Tanjung Pasir Beach tourism still has a low impact on the economy because the Keynesian income multiplier value is 0.04. Key words: economic impact, economic value, tourism, travel cost
ANALISIS HARGA POKOK PRODUKSI, PENDAPATAN DAN BAURAN PEMASARAN AGROINDUSTRI TEMPE DI KELURAHAN YOSODADI, KECAMATAN METRO TIMUR, KOTA METRO
Authors: Andini Gita Dhika Citra Putri , Sayekti Wuryaningsih Dwi , Situmorang Suriaty
Published: July 2024

This study aims to analyze the cost of production, income and marketing mix of tempe agroindustry. This study uses the census method for household clusters according to BPS which are classified into 3 levels, namely small, medium and large. Determination of the research location was chosen purposefully. The population in this study were 19 tempe agroindustries. Respondents in this study were the owners of the tempe agroindustry in Yosodadi, East Metro, Metro City. Field data collecting was carried out in August 2019. The data collected in this study were primary and secondary data. The data was analyzed with quantitative and qualitative descriptive methods. The results showed that the cost of production of tempe agroindustry in Yosodadi, East Metro, Metro City in the small cluster was IDR3,399.40/kilogram, while in the medium cluster was IDR3,521.97/kilogram and in the large cluster was IDR3,351.05/kilogram, tempe agroindustry in Yosodadi Village, East Metro, Metro City is a profitable industry and the marketing mix applied by tempe agroindustry in Yosodadi Village, East Metro, Metro City is not using the cluster method because the types and prices of products in all agroindustries are almost the same.Keywords: agroindustry, cost, income, marketing mix, tempe
ANALISIS KINERJA PENGGILINGAN PADI PADA BERBAGAI SKALA USAHA STUDI KASUS DI KECAMATAN BUAY MADANG TIMUR KABUPATEN OKU TIMUR PROVINSI SUMATERA SELATAN
Authors: Putri Ayu Sang , Rosanti Novi , Saleh Yuliana
Published: July 2024

This research aims to analyze the process of procuring raw materials and the performance of rice mills at  different business scales in East Buay Madang District.  This research used a case study method on rice mills with different  business scales in East Buay Madang District, East OKU Regency, South Sumatra. The rice mill owner was the respondent in this research. Data collection was carried out from March to April 2021.  The data analysis method used was descriptive qualitative and quantitative analysis.  The results showed that the procurement of raw materials for rice mills at different  business scales was not appropriate because there were several components that are not optimal.  The performance of rice mills in East Buay Madang District  is not yet optimum, because one the four production  performance indicators, which is indicator of capacity at small scale rice mills, still needs to be enhanced to be more optimum. .Key words: business scale, performance, procurement, rice mill
ANALISIS DATA PANEL TRANSMISI HARGA BERAS DI PROVINSI LAMPUNG
Authors: Wulandari Riri , Rosanti Novi , Marlina Lina
Published: July 2024

The aims of this research are to examine  the transmission of rice prices  from the producer (miller) level to the consumer vertically, and to analyze  the factors that influence  determination of rice princes  at the producer (miller) level in Lampung Province. The type of method applied in this research was  descriptive research with  quantitative approach. Data analysis was carried out using panel data from January 2020 to December 2022 fron  15 regencies/cities in Lampung Province.  In addition, the data in this research was  also  analyzed by using  Asymmetric Error Correction Model (AECM) and Ordinary Least Squares (OLS). The results obtained in this research indicate that  a symmetrical transmission pattern of rice prices in the short term and an asymmetrical transmission pattern in the long term are occured in Lampung Province. Factors that influence the price of rice at the producer (miller) level in Lampung Province are the consumer price of rice, the price of imported rice, rice consumption, and the producer price of corn.Key words: economic valuation, travel cost method, visitor satisfaction
Impactos do bullying na autoestima escolar de estudantes do Ensino Médio e Superior do Distrito Federal
Authors: Alves de Sousa Felipe , Toledo Evelyn Jeniffer de Lima
Published: July 2024

O bullying é um comportamento agressivo e repetitivo realizado de forma intencional visando prejudicar um indivíduo. Esse tipo de violência é uma preocupação mundial e no Brasil não é diferente, sendo foco de pesquisas da UNESCO e Órgãos de Segurança Pública Nacional. Diante disso, o objetivo da pesquisa foi avaliar o impacto que o bullying, no contexto escolar e acadêmico, tem na autoestima dos estudantes do Ensino Médio (EM) e Ensino Superior (ES) no Distrito Federal. Para isso, foi utilizado dois questionários: um para verificar a ocorrência de bullying e o outro a autoestima. Participaram da pesquisa 56 estudantes do EM e 60 estudantes do ES. Os questionários foram analisados e se mostraram adequados estatisticamente. Os casos de bullying no EM se mostraram superior aos do ES, sendo que no EM o papel mais expressivo foi o de vítima, enquanto no ES foi o neutro. Além disso, estudantes negros e LGBTQIAPN+ sofreram mais violências do que brancos e os que se encontram no padrão heteronormativos. Em relação a autoestima, os menores valores mensurados foram para os papeis relacionados a vítima de bullying. Por outro lado, vítimas agressoras tiveram um aumento da autoestima o que explica parcialmente o ciclo de violência escolar. Assim, incentivamos mais pesquisas a fim de ampliar o mapeamento da violência escolar para que como comunidade possamos entender e agir, não tolerando nenhum tipo de agressão.
Pengaruh Profitabilitas, Leverage, Kepemilikan Asing, Dan Ukuran Perusahaan Terhadap Nilai Perusahaan
Authors: Praramadhaningtyas Elna , Zuhrotun Zuhrotun , Sriyono Sriyono
Published: July 2024

Firm value is proxied by the Price to Book Value which of course relates to the stock price owned by the company. The phenomenon of fluctuations in the value of the company is interesting for further research. Because when commodity prices and company profits decreased during the Covid-19 pandemic, different things happened to firm value. So that potential investors must be able to accurately analyze the condition of the company before making an investment decision, so that investors expectations of the rate of return on investment can be met. The company can develop one of them because of the investors. This study aims to examine the effect of profitability, leverage, foreign ownership, and company size on the firm value of mining companies on the Indonesia Stock Exchange for the 2017-2021 period. The sample used in this study was 200 companies. The sampling method used to obtain samples is a purposive sampling method. Data were analyzed using multiple linear regression using SPSS version 25. The results show that profitability has an effect on firm value. Meanwhile, leverage, foreign ownership, and firm size have no effect on firm value.
Hubungan Entreperneur Self-Efficacy dengan Hardiness terhadap Pemuda dalam Kewirausahaan di Masa Pandemi
Authors: Zuliani Siti , Sa’adah Sa’adah , Huda Mariatul
Published: July 2024

This study aims to determine the level and relationship of entrepreneur self-efficacy and hardiness. In line with the objectives of this research, this research uses quantitative research methods. The research subjects were 150 youths. The method of data collection is by distributing questionnaires. With the data management method using descriptive analysis and correlation test. The results of this study that youth have a high level of entrepreneurial self-efficacy or entrepreneurial self-efficacy. This is obtained from the data, namely youth with a high category of self-efficacy in entrepreneurship as many as 74 people. The data obtained shows relevance to the factor, namely the pressure obtained due to the pandemic period causing youth to have self-initiation against the conditions experienced. Therefore, the entrepreneurial attitude dimensions of self-efficacy and hardiness are needed for the formation of strong and confident entrepreneurs, especially during a pandemic which requires taking risks when economic growth declines.
Controversy and Voluntarism Among the Elite: An Ethnographic Study of the Sufi Community in Cibingbin, Indonesia
Authors: Ayub Wahyudin  , Noval Maliki  , Hilyatul Auliya  , Raharjo Raharjo , Najahan Musyafak  , Mohammad Fahmi bin Abdul Hamid  , Muhammad Nurkhanif
Published: July 2024

This article explores the intricate dynamics among Sufi elites in Cibingbin, highlighting the significant tensions within this distinctive group. The Sufi community is deeply divided, engaging in intense debates and frequent confrontations with each other. Central to these disputes are issues surrounding the Nasab dialectics, an ideology associated with the habaib that stresses the concept of voluntarism among the Sufi elite. These internal debates are most intense between the habaib faction, known as Kanzus Sholawat Cibingbin, and the local religious authorities, referred to as Kyai Kampung. As each group digs in and solidifies their doctrinal positions, the struggle for dominance in the public sphere becomes more pronounced. This phenomenon, which aligns with Habermas's theories regarding the legitimacy of power in public spaces, has unexpectedly fueled the momentum of the Laskar Walisongo movement. Despite the apparent weakening of the habaib's defensive stance, both the habaib and the Kyai Kampung have maintained considerable local influence. The ongoing power struggle highlights the complex interplay between belief, influence and control within this segment of the Sufi community. Ultimately, they have made public spaces an arena not just for collective imagery, but also the most vital part of the organisation’s sustainability or spirit.
The Influence of Director Characteristics and Company Performances Towards Firm Value
Authors: Widialvanti Auliarahma , Nugraheni Bernadia Linggar Yekti
Published: July 2024

This study aims to investigate the influence of director characteristics and company performance towards firm value. There’s a lack of studies about how female director characteristics and company performance affect firm value in Indonesia, therefore this study combined measurements of director characteristics and company performance towards firm value. Using a sample of manufacturing firms listed on the Indonesia Stock Exchange (IDX) from 2018 to 2022, this study applies multiple regression to examine the potential positive associations between director characteristics, company performance, and firm value. Director characteristics are measured by two proxies: the representation of female directors and female educational background, while company performances are assessed by return on assets (ROA) and leverage. Firm value as a dependent variable is represented by Tobin’s Q. The findings indicate a positive association between return on assets and leverage to firm value. However, no evidence is found to support the influence of female representation and educational background towards firm value. Keywords: female_directors, education_background, female_representation, firm_performance, Tobin’s_Q
Factors Affecting Firm Value With Financial Performance as Intervening Variables
Authors: Hartono Caroline Vania , Ratnaningsih Stephana Dyah Ayu
Published: July 2024

This study aims to find evidence of the influence of corporate social responsibility disclosure and audit quality on firm value with financial performance as an intervening variable. The sample of this study consists of 206 companies listed in the PROPER Assessment by the Ministry of Environment and Forestry for the years 2019-2020 and 2021-2022 and also listed on the Indonesia Stock Exchange during the years 2019-2022. Sample selection was conducted using purposive sampling, resulting in 143 companies being sampled. The data used in this study are secondary data. Hypothesis testing was conducted using path analysis method using SPSS version 21 and Sobel Test. The results of this study prove that: 1. Financial performance can mediate the influence of Corporate Social Responsibility on Firm Value. 2. Financial performance can mediate the influence of Audit Quality on Firm Value.
The Impact Of Technology Mastery On Employee Turnover With Technostress As Moderator
Authors: Ayumi Ayumi , Murniati Monika Palupi
Published: July 2024

Employee turnover in Indonesia has a fairly high rate and some of this is due to technology. On the other hand, 66% of companies are switching to digital transformation. This causes the employee turnover rate to increase. Most companies will experience an increase in employee turnover if there is technostress in their workforce. This research aims to examine the moderating effect of technostress on the relationship between technology mastery and employee turnover. The research model was built based on the employee perspective. Primary data was collected through questionnaires given to 151 workers or employees in Semarang City. Hypothesis testing is carried out using linear regression and moderated regression analysis (MRA). The research results show that there is a negative relationship between technology mastery and employee turnover, as well as the moderating role of technostress which influences the influence of technology mastery on employee turnover. This research helps company owners and human resource management to reduce employee turnover rates and can be used as a consideration for company evaluation to reduce technostress. To the best of the researchers' knowledge, this study has never been explored before. This research shows how these three variables act synergistically in a model.
LARANGAN MENIKAH PADA HARI GEBLAK ORANG TUA PERSPEKTIF HUKUM ISLAM
Authors: Ishaq Fadhli Muhaimin , Parwati Dwi Yuni
Published: July 2024

This article examines the Prohibition of Marriage on the Day of Geblak Parents from the Perspective of Islamic Law in Parit Culum II Village, West Muara Sabak District, East Tanjung Jabung Regency, Jambi Province. The purpose of this research is to find out: 1) the prohibition of marriage on geblak day in Parit Culum Village; 2) The reason for the prohibition of marriage on geblak day; 3) the prohibition of geblak marriage from the perspective of Islamic law. This article uses empirical legal research methods and legal anthropology approaches. The data sources used in this research are; field observations and interviews with several informants related to this issue such as interviews with community leaders, traditional leaders, religious leaders, and village officials of Parit Culum II village while secondary data is obtained through several books related to the theory of marriage and customary law. The data obtained is then analyzed by conducting descriptive data analysis. The result of this research is still the belief in an unfavorable day for conducting a wedding ceremony, which is referred to as the day of the parents' geblak. This tradition has been believed by the people of Parit Culum II Village for generations and is still practiced until now. Second, the provisions of the tradition of the prohibition of marriage on the day of the parents' geblak are not found in a clear or definite text in Islam, even though the practice of this marriage prohibition is not punished as haram.
PELAKSANAAN AKAD NIKAH DI KANTOR URUSAN AGAMA KECAMATAN SUNGAI AMBAWANG KABUPATEN KUBU RAYA PADA SAAT PEMBATASAN SOSIAL DI MASA PANDEMI COVID-19
Authors: Sastika Asi , Ardiansyah Ardiansyah , Wibowo Arif
Published: July 2024

In a marriage if you want to be declared legal according to religion and state, of course it must be recorded at the local District Office of Religious Affairs (KUA) in order to have clear legality, but due to the Covid-19 outbreak, the community is hampered and the implementation is different. So that the purpose of this research is 1) Knowing what the social impacts during the covid-19 pandemic are for people who carry out contracts at the KUA, Sungai Ambawang District. 2) Knowing how to carry out the marriage contract between the guardian and the prospective groom at the KUA, Sungai Ambawang District when socializing. Using qualitative research methods, namely field research and sociological juridical approach. The data sources used primary data in the form of interviews with the head and head of the KUA Sungai Ambawang District and secondary data in the form of books, articles, journals and other documents. Data collection techniques in the form of interviews and documentation. Data collection tools using interview guidelines and soft phones. then checked for validity using source triangulation. The data analysis technique uses data reduction, data presentation and conclusion drawing. So it can be said that: 1) The social impact during the covid-19 pandemic for people who carry out the marriage contract at the KUA, Sungai Ambawang District is to minimize wedding financing because there is no reception. And when planning a festive wedding reception is on the agenda and something may not happen. And 2) the implementation of the marriage contract at the KUA, Sungai Ambawang District at the time of social registration by registering online through simkah.web. And at the time of the implementation, keep shaking hands normally, only applying health protocols and using gloves for the prospective groom and the head of the village/guardian to avoid direct transmission of COVID-19.
Utrzymać żywotność baterii
Authors: Fic Krzysztof
Published: July 2024

Fakty i mity na temat właściwości przenośnych magazynów energii.
Tadpoles in Trouble
Authors: Łaciak Małgorzata
Published: July 2024

Young yellow-bellied toads have to face a multitude of dangers.
Evaluation Modeling of Electric Bus Interior Sound Quality Based on Two Improved XGBoost Algorithms Using GS and PSO
Authors: Zhang Enlai , Chen Yi , Su Liang , Zhonglian Ruoyu , Chen Xianyi , Jiang Shangfeng
Published: July 2024

There is no doubt that traffic noise has become one of the main sources of urban noise, and the electric bus, as an important means of transport frequently used by people in daily life, has a direct impact on the psychological and auditory health of passengers due to its interior noise characteristics. Consequently, studying electric bus sound quality is an important way to improve vehicle performance and comfort. In this paper, eight electric buses were selected and 64 noise samples were measured. Acoustic comfort was taken as an evaluation index, professionals were organized to complete the subjective evaluation tests for all noise samples based on rank score comparison (RSC). And nine psycho-acoustic objective parameters such as loudness, sharpness and roughness were calculated using ArtemiS software to establish the sound quality database of electric buses. Aiming at the practical application requirements of high-precision modeling of acoustic comfort in vehicles, this paper presented two improved extreme gradient boosting (XGBoost) algorithms based on grid search (GS) method and particle swarm optimization (PSO), respectively, with objective parameters and acoustic comfort as input and output variables, and established three regression models of standard XGBoost, GS-XGBoost and PSO-XGBoost through data training. Finally, the calculation results of three indexes of average relative error, square root error and correlation coefficient indicate that the proposed PSO-XGBoost model is significantly better than GS-XGBoost and standard XGBoost, with its prediction accuracy as high as 97.6 %. This model is determined as the evaluation model of interior acoustic comfort for this case, providing a key technical support for future sound quality optimization of electric buses.
Drone Flight Detection at an Entrance to a Beehive Based on Audio Signals
Authors: Libal Urszula , Biernacki Pawel
Published: July 2024

Spotting a significant number of drones flying near the entrance of a beehive during late Spring could indicate the occurrence of swarming mood, as the the surge in drone presence is related to an overcrowded hive. Swarming refers to a natural reproductive process witnessed in honey bees, wherein half of the bee colony departs from their hive alongside the aging queen. In the paper, we propose an early swarming detection mechanism that relies on the behavior of the drones. The proposed method is based on audio signals registered in a close proximity to the beehive entrance. A comparative study was performed to find the most effective preprocessing method for the audio signals for the detection problem. We have compared the results for three different power spectrum density coefficients estimation methods, which are used as an input of an autoencoder neural network to discriminate drones from worker bees. Through simulations employing real-life signals, it has been demonstrated that drone detection based solely on audio signals is indeed feasible. The attained level of detection accuracy enables the creation of an efficient alarm system for beekeepers.
An Algorithm for Ultrasonic Identification of Ceramic Materials and Virtual Prototype Realization
Authors: Liu Yu , He Xiping , He Shengping
Published: July 2024

To prevent important items from being replaced by a forgery, an ultrasonic fingerprint identification algorithm is proposed and an identification program is developed. A virtual prototype for the ultrasonic identification of ceramics is developed based on an ultrasonic detection card. This virtual prototype allows for the simultaneous transmission and acquisition of signals. Numerous experimental tests were conducted using this virtual prototype. The results demonstrate that the virtual prototype achieves accurate identification of ceramics. This virtual prototype lays a good foundation for the development of intelligent, automated, integrated, and miniaturized ultrasonic identification systems.
Spatio-Temporal Hierarchical Data Structure Based on Sparse Voxel Octrees for Representation of the Geometry of Time-Variable Three-Dimensional Scenes
Authors: Khorshidiyeh Heidar , Madoš Branislav , Vaľko Dávid
Published: July 2024

The paper deals with the problematics of representation of the geometry of three-dimensional scenes in computer graphics using domain-specific hierarchical data structures based on octant trees or directed acyclic graphs as the means of space saving binary representation of this information. Several hierarchical data structures were introduced in this field in past decades. In this paper we are moving this problematic to the field of the representation of three-dimensional scenes which are rather dynamic in time, so their geometry is changing on the regular basis. We are investigating the influence of this time-variability on the size of the related hierarchical data structure on binary level. We are comparing the approach in which each time step is considered as the stand-alone static three-dimensional scene and therefore is represented by its own hierarchical data structure with the approach when this time-variable scene is considered as the four dimensional space and spatio-temporal sparse voxel octree hierarchical data structure is used for the representation of the geometry of this scene. We tested both approaches on three different scenes which were obtained by voxelization into two different resolutions of polygonal surface models represented originally as the mesh of triangles in Wavefront Object file format. Results of the tests show that spatio-temporal sparse voxel octree is better solution, when we obtained from 1.73 to 2.08 more compact binary representation, in comparison to the solution when time frames were encoded separately as the set of sparse voxel octrees.
A Narrative About Homework in Primary Education – the Perspective of Pedagogical Staff
Authors: Majerčíková Jana
Published: July 2024

The paper discusses the issue of homework in primary education in Slovakia. It attempts to contribute to uncovering the homework narrative that is created and used by its teaching staff and to relate it to the discourse on homework and its place in education in the Anglo-American environment. The research used content analysis of the written products of 30 participants (teachers, educators in children’s school clubs, and teacher’s assistants). Data processing and analysis were carried out by thematic analysis. The results, concentrated in four topics, showed that the homework narrative in primary education is based on homework support. It clearly resonates with the teacher’s expectation of the involvement of the pupils’ parents in its completion. However, it is without the methodical support of the parents from the school. Part of the discourse is also the teachers’ prescription taking into account, particularly, the appropriate number of tasks, their attractiveness, an individual approach when assigning them, and the comprehensibility of homework for all persons involved. Such a setting should reflect potential inequalities between pupils concerning their family background. The narrative revealed details the semantics of school-family relations and the pedagogical strategies of teachers in primary education.
Examining the Utilisation of Learning Techniques and Strategies Among Pedagogy Students : Implications for Self-Regulated Learning
Authors: Seban Peter , Urban Kamila
Published: July 2024

Self-regulated learning is a multifaceted process that involves cognitive, metacognitive, motivational, affective, and behavioural components. These components are interconnected and influenced by contextual factors that shape the overall learning experience. Self-regulated learning empowers students to take control of their learning by utilising effective learning techniques, engaging in metacognitive processes, and fostering motivation and self-efficacy beliefs. The goal of the article is to explore the importance of self-regulated learning in enhancing students’ academic performance and fostering a deep understanding of the learning material. Specifically, this research article explores the utilisation of learning techniques and strategies (LTSs) among pedagogy students, investigating their patterns and preferences for self-studying. The analysis of survey responses from a sample of 76 pedagogy students revealed that the most commonly used LTSs are rereading, note-taking, memorising, and highlighting. The utilisation of LTSs that are empirically considered effective, such as distributed practice, practice testing, and elaborative interrogation, was found to be extremely low. Moreover, the study revealed a lack of comprehensive training in learning techniques and strategies in pedagogy programmes, suggesting that current teachers are not adequately trained to create optimal classroom contexts for developing flexible self-regulatory skills in students. The findings highlight that by incorporating these practices into curriculum, future educators can empower their students to become active learners who select the appropriate strategies and reflect on their learning process. This paper contributes to an understanding of self-regulated learning and the implications of self-regulated learning for educational practices.
Trochlea Dysplasia as the Major Anatomic Risk Factors for Patellofemoral Joint Instability: An Infographic as a Visual Learning Tool
Authors: Vasiliadis Angelo V. , Troupis Theodore , Chrysikos Dimosthenis , Chytas Dimitrios , Noussios George
Published: July 2024

Patellofemoral instability (PFI) is a common condition in children and adolescents, ranging from mild discomfort and mal-tracking to lateral patellar dislocation [1]. A number of anatomical risk factors have been described in the literature, such as trochlear dysplasia, patella alta, excessive tibial tuberosity to trochlear groove (TT-TG) distance, patellar tilt and soft tissue alterations [2]. Among them, TD has been identified as the main anatomical risk factor with the strongest association with PFI [1, 2]. In the study by Dejour et al. [2] radiographically observed TD was identified in 96% of patients with a history of patellofemoral dislocation [1, 2]. Patients with Dejour Type D dysplasia are characterized by a prominent and convex lateral facet with a vertical connection to a hypoplastic medial facet (Figure 1), which provides inadequate tracking of the patella in the trochlea during flexion leading to patella subluxation [2]. Non-operative treatment of lateral patellar dislocation presents a rate of re-dislocation up to 70% within 24 months of the first episode [3]. Sulcus deepening trochleoplasty is indicated for Type B and D dysplasia, in order to improve patella tracking, reduce the rate of re-dislocation and achieve good functional outcomes [2, 4]. Trochlea dysplasia is defined as a shallow or flattened groove with decreased resistance to lateral patellar translation. TD can be assessed on computed tomography (CT) and magnetic resonance imaging (MRI) with the use of overlapping axial images and are able to show perfectly the global shape of the femoral trochlea [2]. The thresholds for identifying trochlear dysplasia are established based on the sulcus angle ≥ 145°, medial/lateral trochlea facet asymmetry < 40%, trochlear depth < 3 mm and lateral trochlear inclination ≤ 11° and therefore it can be used in young adolescents [4, 5]. A deep knowledge of anatomic variations and abnormalities of the patellofemoral joint, which may predispose to PFI, is crucial in order to choose the appropriate treatment for each patient.
Strategic priorities to develop enterprises of the forestry complex of the Russian Federation in the context of modern challenges
Authors: YASHALOVA Natal’ya N. , FRISHMAN Anatolii S. , DANILOV Aleksandr A.
Published: July 2024

Subject. We investigate the current state of the timber industry complex of the Russian Federation.
Objectives. The purpose is to identify and substantiate strategically important priorities for the development of the domestic timber industry, taking into account the current economic conditions and geopolitical situation.
Methods. The study draws on methods of systems and comparative analysis.
Results. The paper revealed the main trends and problems of the current stage of development of the domestic timber industry complex. We formulated practical recommendations to solve the problems of the timber industry development, in the face of sanctions pressure.
Conclusions. The main priorities for further development of the timber industry complex should be entering to new markets, increasing sales of products in the Russian market, increasing the production of import-substituting products with high added value, modernizing the industry through the supply of equipment from friendly countries.
Factors influencing strategic human resource management in business organizations
Authors: SAMAIBEKOVA Zeinegul K.
Published: July 2024

Subject. This article discusses the ability of business organizations to adapt to a dynamic external environment, and the development of internal communications in a modern enterprise.
Objectives. The article aims to systematize the key factors that affect human resource management and contribute to the achievement of strategic goals of the business organization.
Methods. For the study, I used a systems analysis.
Conclusions. The article finds that personnel policies and the state of the internal and external competitive environment are the most important factors affecting the functioning of enterprises. Constant monitoring of these factors contributes to the development of comprehensive strategies that help handle human resource management issues in an effective manner.
Phytochemical and Nutrient Composition of Fresh and Dried Cardiospermum Halicacabum Leaves
Authors: Rani D Jancy ,   Dr. N.G.P Arts And Science College
Published: July 2024

Cardiospermum halicacabum is a creeping herbaceous plant which propogates easily. Cardiospermum halicacabum L. belongs to family Sapindaceae. This plant is produced in the plains of Africa, America, Bangladesh, India and Pakistan. Its general names include: balloon vine, heart vine, heart pea, love-in-a-puff heart and Kanphuti. Its vernacular name (Tamil) is Mudakkathan.
Active Energy Management for Enhanced Engine Transient Operations
Authors: Jing Zhenhao , Neumeier Yedidia , Prasad J. V. R. , James Darrell K.
Published: July 2024

Combat aircraft often require the engine to accelerate as fast as possible in response to the demand of maneuvering. The engine acceleration rate, however, is limited by the compressor surge constraint, which prevents more fuel addition that, otherwise, could provide for higher net shaft torque, and thus, faster acceleration. This paper examines the idea of using the electric starter/generator (ES/G) system to provide additional net shaft torque during this critical phase of acceleration. The idea is examined by simulations using a quasi-one-dimensional dynamic compressor flow model coupled with a lumped combustor–turbine model. A notional single-spool turbojet with a low overall pressure ratio is modeled and simulated. Simulation results suggest that an ES/G, when used as an electric-assist motor during acceleration, can help the engine to accelerate roughly 11, 48, and 70% faster compared to the case without ES/G participation, by using electric power roughly equivalent to 0.1, 1, and 3% of full-speed fuel combustion power, respectively. Furthermore, the respective increase in the acceleration rate leads to an additional 19, 80, and 113% of propulsion impulse, respectively (i.e., thrust integrated over time), during the first 5 s following the acceleration command.
Reinforcement-Learning-Based Robust Guidance for Asteroid Approaching
Authors: Yang Hongwei , Hu Jincheng , Li Shuang , Bai Xiaoli
Published: July 2024

This paper presents a reinforcement-learning (RL)-based robust low-thrust guidance method for asteroid approaching under process uncertainties. Markov decision processes with stochastic dynamics are formulated for RL. To overcome the problem of low terminal accuracy in RL-based transfer trajectory design, robust zero-effort-miss/zero-effort-velocity (R-ZEM/ZEV) guidance is proposed. Originally, an eigenvalue-related term is defined according to the stability conditions of the ZEM/ZEV feedback system and chosen as the learning parameter, which can significantly improve the robustness of the agent to process uncertainties under the low-thrust magnitude constraint. Moreover, the navigation performance of the asteroid approaching is modeled via the Fisher information matrix and incorporated in the reward function design, which enables optimizing the optical observation performance together with the propellant cost. Thereafter, the proximal policy optimization is adopted to train an RL agent that can efficiently deal with the uncertainties. The effectiveness and efficiency of the proposed method are validated through simulations of a low-thrust spacecraft approaching the asteroid Bennu. The promising results indicate that the proposed method can not only deal with various uncertainties efficiently and autonomously but can also guarantee high terminal accuracy.
Effect of Inlet Geometry on Film-Cooling Effectiveness from Shaped Holes
Authors: Wang Hanlin , Wright Lesley M.
Published: July 2024

Modern gas turbine engines require a sophisticated cooling system design to achieve higher power output and efficiency. This study investigates the potential effect of noncylindrical inlet geometries on the performance of laid-back, fan-shaped film-cooling holes using the pressure-sensitive paint measurement technique on a flat plate. On the basis of a common pattern of outlet geometry, racetrack-shaped inlet geometries with aspect ratios of 2:1 and 4:1 were tested along with traditional cylindrical inlets. The coolant flow conditions range from [Formula: see text] = 0.3–1.5 and DR = 1 and 2. The mainstream turbulence intensity is held at 6%. Test results show that the shaped inlets provide a higher area-averaged film-cooling effectiveness over the cylindrical inlet using the same amount of coolant. For the 2:1 inlet, an advantage of 20% higher effectiveness could be maintained for DR = 1, while for DR = 2 this advantage is reduced to 10%. For the 4:1 inlet, when the coolant momentum flux ratio [Formula: see text] < 0.5, a similar or slightly higher improvement can be obtained, but when [Formula: see text] > 1, the advantage diminishes with the growing I to approximately 5%, at [Formula: see text] = 2.25. Regarding discharge coefficients, the 2:1 inlet geometry is similar to the cylindrical inlet. For the 4:1 inlet, it is 2–5% lower or nearly equivalent.
Homogeneous Equilibrium Modeling for Subcritical Flows in Liquid Rocket Engine Cooling Systems
Authors: Fiore Matteo , Nasuti Francesco , Pizzarelli Marco , Ierardo Nicola
Published: July 2024

During off-design operations of liquid rocket engines, the coolant operating conditions can easily extend from the subcritical to the supercritical regime. As a matter of fact, it is very useful to have a single software able to study the flow in this range of operating conditions, providing reliable simulations that are reasonably quick and able to accurately estimate and assess the increase in coolant temperature along the channel and the wall temperature field. This objective is pursued by extending an established approach for the study of supercritical flows to the case of subcritical heating, where a two-phase flow may occur. This is done by exploiting the so-called homogeneous equilibrium model, which has been shown to be sufficiently predictive and accurate for specific applications. With the aim of demonstrating and discussing the potential and limitations of such a single software approach, analyses are conducted on different test cases where two-phase flow is induced by cavitation or flow boiling, and results are compared with those of analytical models and experimental data. It is found that, in addition to some intrinsic limitations in the analysis of subcooled boiling flows, satisfactory agreement with experimental data is obtained in the post-critical-heat-flux regime.
Döviz Kurundan Tüketici Fiyatlarına Asimetrik Geçiş Etkisi: NARDL Yöntemi
Authors: Erkan Rümeysa
Published: July 2024

Döviz kurundaki hareketlerin tüketici fiyatları üzerinde yarattığı etkinin incelendiği bu çalışmada, 2003:01 ile 2023:09 arası 249 gözlemden oluşan aylık veriler kullanılmıştır. Bu çalışma kapsamında, iki değişken arasındaki asimetrik ilişki NARDL (Doğrusal Olmayan Gecikmesi Dağıtılmış Otoregresif Model) yöntemi ile incelenmiştir. Elde edilen sonuçlardan hareketle, Türkiye’de döviz kuru ve enflasyon oranı arasında kısa dönemde asimetrik uzun dönemde ise simetrik bir ilişki olduğu görülmektedir. Sonuçlar uzun ve kısa dönem olarak ikiye ayrıldığında, uzun dönemde döviz kurunda %1’lik bir değişme (artış veya azalış) enflasyon oranı üzerinde %.0.589’luk bir artışa neden olmaktadır. Kısa dönemde ise döviz kurunda %1’lik bir artış olması enflasyon oranı üzerinde %0.314’lük bir artış ve %1’lik bir azalış ise %0.204’lük bir azalışı beraberinde getirmektedir.
The Developmental Routes Followed by Smartphone Technology Over Time (2008-2018 Period)
Authors: Kargı Bilal , Coccia Mario
Published: July 2024

This paper's aim is to identify and examine the key technical attributes that propel product innovation, facilitating the prediction of swiftly evolving technological trajectories. The present study introduces the hedonic pricing method and various other approaches, which have been employed in the context of smartphone technology, comprising a sample of 738 models spanning from 2008 to 2018. The findings indicate that the progression of smartphone technology is primarily steered by technical features related to the perceptual experience of users, including the resolution in total pixels, the first and second camera in megapixels (Mpx), and storage capacity (RAM and memory in gigabytes, Gb). Implications for innovation product management are also deliberated upon.
Relationship Between Twitter Sentiment Analysis and Bitcoin Prices: Econometric Analysis of Long and Short Term Dynamics
Authors: Ulu Çağrı , Ulu Cansu
Published: July 2024

The significance of social media in influencing cryptocurrency pricing has grown considerably in recent years. This study aims to explore the correlations between social media sentiments and Bitcoin pricing, both in the short and long terms, while also investigating the direction of these relationships. Sentiment analysis was conducted using the TextBlob model, which uncovers the underlying meaning in text through analysis. The study tested the hypothesis that there exists a relationship between sentiment analysis scores and Bitcoin prices over both short and long periods. Ensuring stationarity was crucial for time series analysis, involving the use of structural break and traditional unit root tests. Daily data from June 2021 to June 2022 was examined, with December 2021 serving as the focal point due to a peak in Bitcoin prices. The study focused on Bitcoin price data and sentiment analysis scores. Results revealed Twitter data as the dependent variable, showing no long-term relationship with Bitcoin prices. However, a significant and positive relationship was observed in the short term. This research contributes valuable insights into the intricate dynamics between social media sentiments and cryptocurrency pricing.
Nükleer Enerji Tüketimi, Yenilenebilir Enerji Tüketimi ve Karbon Emisyonlarının Sağlık Harcamaları Üzerindeki Etkileri
Authors: Aydın Buket , Çamkaya Serhat
Published: July 2024

Son yıllarda sürdürülebilir kalkınma amaçları çerçevesinde iklim değişikliği ile mücadele politikaları birçok ülkenin temel motivasyonu olmuştur. Bu nedenle çevre ile ilgili araştırmalar literatürde sıkça tartışılmaktadır. Özellikle fosil yakıt tüketiminin çevre ve insan sağlığı üzerindeki zararları bu araştırmalarda dikkat çekmektedir. Bu amaçla küresel anlamda yenilenemez enerji kaynaklarının tüketiminin azaltılması ve yenilenebilir enerji kaynaklarının tüketimine yönelim başlamıştır. Çalışmada 1973-2021 dönemi için İngiltere’de sağlık harcamaları üzerinde, CO2 emisyonu, ekonomik büyüme, nüfus, nükleer enerji tüketimi ve yenilenebilir enerji tüketiminin uzun ve kısa dönemli etkisi ARDL analizi ile test edilmiştir. Hem uzun hem de kısa dönemli sonuçlar birlikte değerlendirildiğinde özellikle yenilenebilir enerjinin sağlık harcamaları üzerindeki negatif etkisi göze çarpmaktadır. Bu etki yenilenebilir enerji kaynaklarının kullanımındaki artışın çevreye ve insan sağlığına olumlu etkisini göstermektedir. Bu noktada çevresel tahribatın insan sağlığına zararlarının en aza indirilmesi ve sürdürülebilirliğin sağlanması temiz enerji kaynaklarının kullanımının ve temiz enerji yatırımlarının arttırılması yönündeki politikalar önemlidir.
Uluslararası Taşımacılık Hizmet Ticareti ile Ekonomik Büyüme Arasındaki İlişkinin Analizi: Türkiye Örneği
Authors: Çakmak Mehmet , Doğan Çalışkan Zehra
Published: July 2024

Hizmet ticareti; taşımacılık, sigorta, inşaat, turizm, telekomünikasyon gibi hizmetlerin uluslararası ölçekte ithalatından ve ihracatından oluşmaktadır. Hizmet ticareti bir ülkenin ekonomisini istihdam, toplam faktör verimliliği, katma değer, döviz rezerv dengesi boyutlarında etkileyebilmektedir. Bu noktada taşımacılık hizmet ticareti de benzer etkilerin yanı sıra ithalat ve ihracat işlemlerinin hızlı ve zamanında yapılması konusunda da ekonomik etkiler sağlayabilmektedir. Dolayısıyla yük taşımacılığı hizmet ticareti bir ülke için ekonomik büyümeyi etkileyebilen bir potansiyel içermektedir. Bu çalışmanın amacı Türkiye için uluslararası yük taşımacılığı hizmet ticaretinin ekonomik büyüme ile olan ilişkisini araştırmaktır. Bu amaçla Türkiye’nin 1984-2022 yılları arasındaki GSYİH verileri ve Merkez Bankası yük taşımacılığı (navlun) hizmet ticaret verileri ARDL Modeli ile analiz edilmiştir. Buna göre Sınır Testi sonuçlarına göre değişkenler arasında Eşbütünleşme ilişkisin bulunduğu ve modelin anlamlı olduğu gözlemlenmiştir. Çalışma kapsamında yapılan analiz sonuçlarına göre uzun dönem için yük taşımacılığı hizmet ticareti (yük taşımacılığı ithalatı ve ihracatı açısından) ile ekonomik büyüme ile arasında anlamlı bir ilişki vardır.