bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Grazing in Natural Regeneration at Tree Line region in Lamtang National Park, Nepal
Authors: Basnet Manisha , Regmi Tika , Dhamala Man Kumar , Adhikari Shankar
Published: July 2024

Livestock grazing in the form of transhumance activities is common practices in the mountainous region of Nepal. Such grazing activities can impact on natural regeneration of tree species. Being grazing practices as major occupation, not enough research has been carried out on impacts of grazing and management of grazing area in Nepal. This study was conducted with an aim to assess the effects of grazing in natural regeneration in tree line region of Lamtang National Park (LNP). Transect method was carried out for study after identifying different grazing intensities in field. Data were analyzed to study phyto-sociological characteristic (species richness, Shannon-Wiener Diversity Index and density) of vegetation, health of seeding, soil characteristic and disturbance index in grazing region. ANOVA, Kruskal-Wallis test and linear regression were performed to elucidate the relationship between vegetation attributes and grazing intensities. The relationship was further analyzed using post-hoc test i.e., Tukey post hoc test for normal data and Dunn test for skewed data. The result shows that Abies spectabilis has set the upper altitudinal limit in all sampling areas i.e., ungrazed, least grazed and moderately grazed area at 3803 m, 3827 m and 3860 m respectively. Moderately grazed area had the higher tree richness, diversity, density and natural regeneration. The density of seedlings was also higher in moderately grazed area. Only 18.3% of seedlings were found to be healthy in moderately grazed area which is comparatively lower than in ungrazed area (69.8%). Soil parameters such as Bulk density, Moisture content, pH and Nitrogen showed the variation with grazing intensities. The linear regression analysis showed the insignificant decrease (p=0.18) and insignificant increase (p=0.08) in seedling density with increase in disturbance score in ungrazed and least grazed area respectively. However, for the moderately grazed area, there is significant increase (p=0.02) in seedling density with increase in disturbance score. As moderate forest grazing helps to maintain the natural regeneration, grazing management is recommended in the higher Himalayan region.
Energy Recovery from Municipal Solid Waste by Production of Refuse Derived Fuel
Authors: Thapa Luna , Shrestha Krishna Raj , Regmi Tejendra , Ghising Haikam
Published: July 2024

Waste to energy options can present an opportunity for effective waste management and addressing the energy crisis. This study aimed to produce Refuse Derived Fuel (RDF) from combustible Municipal Solid Waste (MSW), primarily plastics and paper. Cylindrical briquettes were manufactured from shredded raw materials using a screw extruder. The study examined the energy content, physical properties, and proximate analysis of the produced RDF. The briquettes exhibited a high calorific value of 6,736 Kcal/kg. Experimentation on briquette combustion was conducted in a pottery kiln in Thimi, Bhaktapur, revealing that RDF outperformed fuelwood both in terms of quality and quantity. The RDF shows promising potential due to its high calorific value and favorable combustion properties when supplied with air. However, the study recommends further analysis of the combustible characteristics of MSW.
Tandem Queue and Its Applications in the Production of Bi-layer Tablets
Authors: Thapa Ritu Basnet , Ghimire Sushil , Ghimire Ram Prasad
Published: July 2024

Production of bi-layer tablets involves the concept of tandem queue. Tandem queue is a series of queues in which the output of one queue becomes the input to the next queue. In this paper, two tandem queues are employed. Each queue has heterogeneous mean arrival time and service time. These two queues merge into one finite capacity queue in the production process of the bi-layer tablets. The study investigates various performance measures of the queueing model. Mathematical models and simulations are utilized to evaluate system performance under different scenarios.
The Digital Environment as a Space of the Evangelization Activity: New Dimension of the Obligations Arising from the Prescripts of can. 822 CIC
Authors: Pastwa Andrzej
Published: July 2024

Contemporary papal enunciations are characterized by the assertive―active and optimistic, yet risk-conscious and non-critical―ecclesial approach to the opportunities/challenges of the “digital age.” If we follow these indications, imbued with the concern for the effectiveness of the evangelizing mission in the new socio-(technological-)cultural realities/contexts, and at the same time bear in mind the rule that the Church’s legal practice must take into account the current conditions of human existence—it becomes clear that this authoritatively outlined horizon of the “signs of the times” poses a challenge to theological sciences, including the canonical doctrine. As far as the latter is concerned, leaving aside the often urgent need for legislative changes/adjustments (given the peculiarities of the various regions of the world—above all at the level of particular law), the role of experts in presenting a renewed, adequate hic et nunc interpretation of certain nodal canons of the Code of Canon Law remains invaluable. We may argue that such include the prescripts of can. 822. Hence, this article attempts a two-stage delimitation of the problem meritum—according to the research steps announced in the title: (1) The digital environment as an indispensable space of the evangelization activity; (2) The new dimension of the obligations of the Church’s Pastors imposed by the prescripts of can. 822 §§ 1–3.
Repository (R)evolution: Metadata, Interoperability, and Sustainability
Authors: Eells Linda , Kelly Julia , Farrell Shannon
Published: July 2024

Introduction: Successfully managing an open-access repository requires constant attention to user community priorities in order to inform the development or selection of a platform that fulfills constantly evolving functional demands in an increasingly complex operational environment. This paper uses AgEcon Search (AES) as an example of the way that varying platforms address the metadata and other platform needs of a repository. AES is a successful subject repository with an international scope that has resided on several different platforms in its 25-year lifespan.
Elements and Considerations: Critical among the technical requirements of a repository is interoperability with other information sources and the ability to accommodate and describe different types of objects, including data. Experienced in the use of easy and widely used Dublin Core (DC), as well as Machine-Readable Cataloging 21 (MARC 21)-based repository platforms, we discuss both metadata schemas from administrative and user perspectives. Reconsidering underlying metadata issues might positively impact both technical and administrative issues that are currently restricting the development of robust, interoperable systems. As managers of AES, we are uniquely placed to discuss both technical and sustainability issues.
Conclusions: Although many institutional and subject repositories are on platforms that use DC for their metadata, other options are available. MARC, the well-established library standard, can provide the wide range of fields needed to fully and accurately describe the variety of document and data types that are included in repositories.
Effect of Internal Reflectors on Daily Performance of Double Slope Solar Stills with Porous Fin Absorber Plate
Authors: Ismail Nova Risdiyanto , Suwandono Purbo , Hermawan Dadang , Farid Akhmad , Anggraeni Frida Dwi
Published: July 2024

The potential of energy and sea water in Indonesia is relatively high, but it has not been utilized massively to reduce the shortage of fresh water on the islands. Utilization of this potential can use solar stills. Solar still is a relatively cheap technology, easy to obtain materials, environmentally friendly and easy to construct, but this technology has shortcomings in its low productivity. Efforts to increase productivity have been made by many researchers, but there has not been a study of internal reflector integration in a double slope solar still using a porous absorbent plate tested for 23 hours. This study aims to examine the effect of adding an internal reflector on the performance of a double slope solar still. The performance of the double slope solar still is identified by evaluating freshwater productivity and efficiency. This research was conducted experimentally comparing with and without internal reflector. The addition of internal reflectors varies in placement, as for the placement on the north and south sides (RUS), the south side (RS), and the north side (RU). Data collection starts at 07.00 p.m. until 06.00 a.m the next day and is carried out for 5 days. Research comparing the performance of RUS, RS, RU compared to TR and concluded that there is an increase in temperature of fins, seawater and cover glass when using the addition of internal reflector. The increase in temperature has an effect on daily productivity for RUS, RS and RU between 12.88-16.13%, 8.71-12.56%, and 1.70-2.88%, respectively. In addition, the addition of the internal reflector has a positive effect on increasing the daily efficiency for RUS, RS and RU between 12.69-15.93%, 8.60-12.46% and 1.65-2.82%, respectively.
Content Commodification in the Digital Age : Implications and Challenges
Authors: Putri Erri Kartika Purnama , Zulaikha Zulaikha , Abror Dhimam , Syam Maella Nur Annafi Farni
Published: July 2024

This research aims to explore the phenomenon of content commodification in the digital age, focusing on the economic, social, and cultural implications and challenges faced by content creators and digital platforms. Offers an original contribution to understanding how content commodification impacts various aspects of digital life. By highlighting key implications and challenges, it provides useful insights for content creators, platform managers, and policymakers. A qualitative approach was used in this research, involving in-depth interviews with content creators and policy analysis of digital platforms. Data was also obtained through a review of current literature from the last five years to support the research findings. Research limitations include limitations in sample size and diversity, time constraints, and participant and researcher bias. These limitations affect the generalizability of the results and highlight the need for further research with a wider scope and more diverse methods. The results show that content commodification provides significant economic opportunities for content creators, but also brings challenges such as income instability, copyright issues, and pressure to create viral content. Digital platform algorithms affect the visibility and sustainability of content. Social and cultural implications include changes in consumption patterns and social interactions, as well as cultural diversification influenced by platform algorithms. This research concludes that overcoming the challenges of content commodification requires diversifying sources of income, increasing copyright awareness, and developing fairer algorithms. Cooperation between creators, digital platforms, and policy makers is essential to create a more equitable and sustainable ecosystem in the creative industry and digital economy.
The Inseparability of Postcolonial Studies from Palestine: Reflections on Edward Said
Authors: Md. Mahmudul Hasan
Published: July 2024

The plight of Palestinians in Palestine and in the diaspora is a result of Israeli settler colonialism. Israel’s atrocious behaviour to colonised Palestinians is manifested through a myriad of crimes such as blockading occupied territories, demolishing homes, educational institutions, hospitals, and places of worship, restricting their movements, cutting power and communication, killing rampages, massacres to the extent of genocide, and other gruesome violations of human rights – all designed to force Palestinians off their lands and to eventually occupy them. Among academic disciplines, postcolonialism is most relevant to the discourse of Israel and Palestine and most promising to the cause of justice and the promotion of human rights in the region. In this essay, I argue that, owing to Edward Said’s pioneering role in the development of postcolonial studies, the origin of this intellectual and literary movement is traced back to Palestinian resistance to Israeli colonisation. Therefore, practitioners of this decolonial discourse are in principle obligated to address the issue of Palestinian liberation from Israeli colonial oppression. Later in this essay, I also offer a cursory glance at some remarks of Salman Rushdie on the Israel-Palestine issue and discuss a perceived need for decolonising postcolonial studies.
Averting the Existential Threat of the Planet: Islamic Environmental Ethics to Address the Contemporary Environmental Crisis
Authors: Shaleh Adha , Islam Md. Saidul
Published: July 2024

This research paper explores Islamic Environmental Ethics (IEE), emphasising collective human responsibilities to manage environmental resources and protect the universe from functional degradation. It provides an overview of Islam and modern environmental discourse, aiming to offer a holistic perspective on IEE that encompasses Islamic faith, Islamic religious law, and Islamic ethics. The study is significant as it provides a moral framework and responsibility for humans to avert the existential threat to our planet. Focusing on a comprehensive methodological approach, it addresses the adoption of IEE in the Muslim world and beyond. Utilising an integrative literature review methodology, the paper synthesises diverse theoretical perspectives, empirical findings, and sociocultural and political developments. This approach creates a cohesive body of knowledge that is theoretically robust, incorporating intersectional analyses of social, economic, and cultural factors within Muslim communities. The article concludes with three suggestions: capacity building, good governance, and collaboration.
Indicators of adaptation of psychology students to the digital transformation of education during their university studies
Authors: Usoltseva Viktoria Vladimirovna , Shitova Polina Sergeevna
Published: July 2024

The article is devoted to the study of adaptation of psychology students, their adaptation in accordance with the indicators identified in the process of theoretical analysis, the definition of the concept of adaptation in general and to the digital transformation of education in particular. The study of adaptation indicators of psychology students to the digital transformation of education is relevant, since in the modern world digital technologies play an increasingly significant role in all spheres of life, including education. Digital technologies are a reliable assistant to the psychologist at all stages of the educational process. To study the ability of psychology students at a pedagogical university to adapt in their lives to changing conditions and the process of digital transformation of education, survey and questionnaire methods were used. The level of adaptation was determined using a standardized questionnaire and the author's questionnaire. The paper presents the results of a study of four indicators of general adaptation: neuropsychic stability, communicative ability, moral stability and adaptive ability. Four indicators of adaptation to the digital transformation of education have been identified: interest, readiness to use digital tools, knowledge of digital tools and the ability to use them, ease of learning digital tools. Based on the results obtained, data on the adaptation of psychology students of the Faculty of Psychology and Pedagogy of different courses are presented.
Motivational sphere of primary school students: aspects of formation
Authors: Livshun Oksana , Olkhovetskyi Serhii
Published: July 2024

The article investigates the aspects related to the peculiarities of the educational process in primary school, primarily focusing on the issue of forming the motivational sphere and cultivating a positive attitude towards learning. Ensuring educational activities, including aspects that create conditions for fostering positive motivation, is a fundamental task of education today, especially in elementary school, and requires constant attention.
Teaching former preschoolers in primary school cannot be accomplished without understanding a child's orientation towards new activities, meaning the motivational aspect of learning serves as an impetus for any human action, including specific types of education. Positive motivation for learning in primary school will not only contribute to developing the ability to learn but also encourages the pursuit of knowledge in secondary school.
Insights from experienced teachers enable them to offer advice to novice educators on organizing education that enhances achievement, satisfies the need for new knowledge, and fosters positive motivation for school learning. Motivation plays a crucial role in the educational process. When students have a strong motivation for learning, they become more interested, active, and capable of acquiring new knowledge at a faster pace. Motivation is a crucial factor influencing a child's educational accomplishments and future success.
During their early school years, children begin to form their perceptions of learning and school, and a significant part of their motivation depends on the experiences they gain during this period, whether positive or negative. Shaping learning motives and a positive attitude towards school stands as one of the most significant tasks for the educational community and families in preparing children for school. The growth of a child's motivational sphere holds great significance for their academic success and future life.
Anxiety can reduce attention and accelerate the subjective passage of time
Authors: Tsybulsky Arman , Miliutina Kateryna
Published: July 2024

This study is a test of the hypothesis that accelerated subjective time passage (ASTP) occurs as a result of increasing levels of anxiety, and, at the same time, decreasing levels of attention. The hypothesis was based on the Attentional Gate Model (AGM) and considered on an autobiographical time perception scale. The identification of underlying relationships allows to predict ASTP alteration through related elements. Among this elements are anxiety and attention. Previous studies have already helped to establish interactions between anxiety and time perception at short intervals. In this study, these interactions were determined on an autobiographical scale.
The aim of the study was to determine if there is a relationship between anxiety and time perception, which speeds up the passage of subjective time on an autobiographical scale, through a decrease in mindfulness and awareness.  Methods and sample: As instruments of research were used: the author's questionnaire, the main questions of which were «Three questions about time». This questionnaire was used in 2021, in order to form preliminary conclusions. In 2023, only the «Three questions about time» were used from this questionnaire in order to establish the differences in indicators of the perception of time, taking into account the occurrence of historical events.
 The STQ (Subjective Time Questionnaire) was used as a validated questionnaire to examine retrospective time perception for detailed analysis. A block of questions about the future, developed by the authors, was added to it, aimed at evaluating future time. Thus, the results of the STQ covered the entire temporal perspective.
 The MAAS (Mindfulness Attention Awareness Scale) was used to study the level of attention and awareness. The STAI (State-Trait Anxiety Inventory) was used to study anxiety.  The questionnaires were posted on Google Forms in 2021 and 2023. There were 74 participants in 2021 and 130 participants in 2023.  To analyze the results we used: frequency, correlation analysis, and multiple regression method.
There was a significant increase in the ASTP according to the results of "Three", probably caused by the war in Ukraine and the growth of anxiety in society. Both trait and state anxiety showed significant correlations with the perception of time by STQ and «Three» blocks. The strongest correlations were found on the factor "trait anxiety" with STQ blocks "time pressure" [r=0.321; p<0.001] and "time expansion" [r=0.333; p<0.001], a weaker relationship was found with the "speed time" block [r=0.177; p=0.044]. Negative associations were identified between the Mindfulness and Awareness index (MAAS) and state anxiety (r=-393; p<0.001) and trait anxiety (r=-442; p<0.001). MAAS was associated with STQ: negative correlations of MAAS were identified with blocks of STQ "time pressure" [r=-0.375; p<0.001], "time expansion" [r=-0.207; p=0.019] and "speed time" [r=-0.182; p=0.040] That is, a vicious circle was formed: Anxiety-Attention-ASTP-Anxiety
A PRÁTICA EM REALIDADE VIRTUAL PARA APRENDIZAGEM MOTORA DE CRIANÇAS COM PARALISA CEREBRAL: UMA REVISÃO INTEGRATIVA
Authors: Damasceno da Rocha Yuri , De Castro Ferracioli Gama Marcela
Published: July 2024

A Paralisia Cerebral (PC) é caracterizada por um grupo de desordens permanentes do movimento e da postura do indivíduo, oriundos de uma lesão não progressiva que pode ocorrer no cérebro fetal ou na infância. As principais manifestações clínicas podem ser musculoesqueléticas, cognitivas, perceptivas e motoras secundárias a lesão, causando limitações no âmbito da atividade e participação e na aprendizagem motora das crianças com essa condição. A prática de atividades em ambientes com realidade virtual (RV) pode ser benéfica para aprendizagem motora dessa população pois trata-se de um ambiente seguro que proporciona ao indivíduo experiências sensoriais com o uso da interface. O objetivo desse estudo foi descrever e sumarizar a prática em RV para aprendizagem motora de crianças com PC através de uma revisão integrativa da literatura. Foram selecionados estudos disponíveis nas bases PubMed, Embase, Scielo, Lilacs, através da estratégia PICOT, e publicados entre os anos 2000 e 2023. O tempo de intervenção variou entre trinta e sessenta minutos enquanto a duração da intervenção de duas a doze semanas. As interfaces não imersivas estiveram em maior parte dos achados e o dispositivo mais utilizado nos protocolos de intervenção foi o Nintendo Wii ®. Com a análise dos artigos foi possível constatar que a RV pode ter efeitos positivos na aprendizagem motora, com desfechos na independência funcional, na habilidade manual, na função motora grossa, equilíbrio, entre outros. Com isso, a prática nessas interfaces pode ser uma possibilidade de intervenção para crianças com PC com resultados variados a depender do objetivo do treinamento.
Difficulties and sensory motor changes in feeding in premature infants in the first years of life
Authors: Cabral Celina , Viera Cláudia Silveira , Fujinaga Cristina Ide , Nassar Patricia Ohlmeier
Published: July 2024

Objective To describe the eating difficulties and changes in sensory motor aspects of feeding in the first three years of corrected age of premature infants. Methods Cross-sectional study with 49 premature with corrected age (GA) between 24 and 36 months, born between 2015/2017. A specific assessment instrument was used, which includes about food, assessment of the stomatognathic system and feeding. To analyze the observed effect, the sample was divided into those born with GA <32 weeks and GA> 32 weeks. Data analyzed in the XLSTAT® software using the chi-square test for Independence and the Monte Carlo method if categorical counts <5, significance level of 5%. Results Despite not having statistical significance (p=0.138), the GI group >32 weeks, had a lower incidence of food discomfort compared to the group <32 weeks, which showed higher frequencies of changes in oromotor aspects of feeding in pasty and solid consistencies related to lip sealing in swallowing, suggestive signs of penetration/ laryngeal aspiration and chewing. Conclusion Both groups presented complaints of eating difficulties, identified by changes in sensorimotor aspects of feeding. However, it was evidenced in the group of those born with less than 32 weeks more complaints of discomfort during alimentation.
Development, Formation and Organization of the Archives of the Kyiv Metropolis as Part of Documentary and Informational Resources
Authors: Osiievska O.
Published: July 2024

The purpose of the article is to reveal the process of formation of document and information resources of the Kyiv Metropolis of the Synodal period (1721–1917), which are currently part of the system of archives in Ukraine, to consider the state of archives at different times of their existence and the influence of the existing state-political regime on it.
The methodology of the research is the principles of logic and objectivity. And at the same time, the author applied the comparative method, as well as the method of generalization classification, structural and functional analysis, statistical and historical-comparative methods. The article draws attention to the specifics and peculiarities of the formation of archives of the Kyiv Metropolis, the influence of state authorities on this process, and attempts to improve the system of their preservation and improvement. At the same time, the archives performed various functions — political, informational, etc. The inconsistency of the arrangement of the archives is noted. The state of the archives was also affected by the political situation. Some of the archives were destroyed during the change of political power. However, the seizure of archives during the Soviet period, an attack on church structures, also created the possibility of their preservation. If in the imperial period the functioning of the archives depended primarily on the founders themselves, later it depended exclusively on the organization of the state archival service. The perspective direction of further scientific research in the specified issue is outlined.
The scientific novelty consists in an attempt to comprehensively consider the development, formation and organization of the archives of the Kyiv Metropolis.
It was concluded that the development, formation and organization of the archives of the Kyiv Metropolis took place in two main stages. At the first stage, during the existence of this church structure itself, archives were accumulated and formed within the framework of individual institutions within it. During this period, certain rules were developed regarding the maintenance of archives, but they did not have a systematic nature. Similarly, there was no practical component in the supervision of the condition of the archives, their maintenance and improvement. In the second stage, which began after the fall of the Russian Empire and the beginning of the process of separation of the church from the state, and then with the liquidation of church structures, the metropolitan archives became part of the new archival system. However, in the Soviet period, they were not widely available and were practically not studied. The search for documents and the analysis of information regarding the organization of the church archives of the Kyiv Metropolis and their preservation under the conditions of the functioning of various political systems can be considered a promising point of research in the outlined direction.
An extensive review of human health benefits from consuming farmed or wild fish with special reference to gilthead seabream (Sparus aurata)
Authors: Yiğit Ümüt , Ergün Sebahattin , Yiğit Murat
Published: July 2024

In public, there is a significant concern regarding the safety and quality of farmed fish that poses problems for fish farmers in marketing. There is widespread recognition that farmed fish are less healthy than their wild equivalent, mostly attributed to unhealthy farm conditions or the ingredients used in artificial diets for aquaculture. However, the nutritional quality of farmed -or wild-caught fish may differ based on regional variation or a cultural environment's complex aspects. Whether farmed or wild fish provide better product quality is a long-standing matter for consumer preferences and marketing. Information was collected from a wide range of references through an extensive literature review, and detailed evaluations were made on the health levels of cultured fish and natural fish in human consumption. Therefore, the present study provides an extensive review to address the differences in the nutritional contribution of farmed and wild fish for human consumers. Addressing the questions arising from consumers’ concerns will undoubtedly support farmers in their challenging marketing efforts.
LEARNING OBSTACLE PADA PEMBELAJARAN PROGRAM LINEAR UNTUK SMA KELAS XI
Authors: Hasanah Zakiyatul , Destiniar Destiniar , Fahriza Fuadiah Nyiayu
Published: July 2024

Penelitian ini bertujuan untuk mengetahui kesulitan atau hambatan belajar yang dialami peserta didik dan berbagai penyebab hambatan belajar tersebut. Penelitian ini menggunakan metode penelitian kualitatif. Analisis kesulitan belajar didapat dengan memberikan tes Learning Obstacle, menganalisis buku teks yang digunakan guru, analisis RPP, melakukan wawancara terhadap guru mata pelajaran, dan menganalisis hasil tes Learning Obstacle, yang diberikan kepada 17 peserta didik kelas XII. Hasil penelitian yang diperoleh dalam penelitian pembelajaran program linear ini peserta didik mengalami kesulitan atau hambatan belajar  pada materi program linear yakni 1) terdapat peserta didik yang belum mampu membuat model matematika dari sistem pertidaksamaan linear dua variabel, 2) peserta didik kesulitan menentukan himpunan penyelesaian atau titik pojok yang berkaitan dengan sistem pertidaksamaan linear dua variabel, 3) peserta didik kesulitan dalam menggambar grafik daerah himpunan penyelesaian, 4) peserta didik kesulitan dalam menentukan nilai optimum dari fungsi tujuan.
KEMAMPUAN PEMAHAMAN KONSEP SISWA MELALUI PEMBELAJARAN DARING PADA MATERI BARISAN DAN DERET DI SMA NEGERI 4 PALEMBANG
Authors: Marlina Dina , Septiati Ety , Rohana Rohana
Published: July 2024

Pandemi Covid-19 memberikan dampak yang cukup besar dalam kehidupan masyarakat indonesia, salah satunya dalam aspek pendidikan. Dengan adanya pandemi ini mendorong pemerintah untuk mengeluarkan kebijakan tentang pelaksanaan pembelajaran di indonesia yaitu pembelajaran harus dillakukan secara daring atau jarak jauh. Penelitian ini bertujuan untuk mendeskripsikan pelaksanaan pembelajaran daring pada masa pandemi Covid-19 dan Mendeskripsikan kemampuan pemahaman konsepsiswa pada materi barisan dan deret. Penelitian ini termasuk Metode Penelitian Deskriptif Kuantitatif, yang mendeskripsikan segala bentuk tindakan dan juga fenomena yang dilakukan oleh subjek yang diteliti dalam pelaksanaan pembelajaran daring, Adapun teknik pengumpulan data dalam penelitian ini menggunakan soal tes. Pelaksanaan pembelajaran daring di SMA N 4 Palembang secara daring pada siswa Kelas XI materi sudah terlaksana sesuai RPP yang disusun, dengan memanfaatkan aplikasi Pembelajaran Google Meet dan WhatsApp dan berbantuan Google Form. Kemampuan pemahaman konsep siswa berdasarkan dengan rata-rata 55,71. yang mendapatkan nilai dengan kategori cukup adalah indikator kedua dengan kategori 48,89% , ketiga 42,31%, kelima 44,90%, keenam 52,38% dan ketujuh 50,00%. Sedangkan indikator yang mendapatkan nilai kurang adalah indikator pertama 40,00% dan kelima adalah 39,29%.
DESAIN PEMBELAJARAN MATEMATIKA REALISTIK MATERI PENGUKURAN PANJANG DAN BERAT DI SD II KLALING
Authors: Andani Rahmawati Sajidda , Amelia Sani Fidela , Zuliana Eka
Published: July 2024

Tujuan dari penelitian ini adalah untuk mendeskripsikan pemahaman desain pembelajaran matematika realistik pengukuran panjang dan berat. Metode penelitian yang digunakan untuk mendapatkan informasi adalah metode penelitian kualitatif dengan pendekatan deskriptif. Penelitian ini dilakukan terhadap 20 siswa SDN II Klaing, Teknik pengumpulan data melalui observasi, wawancara, dan dokumentasi serta didukung dengan sumber referensi yang relevan terkait pemahaman siswa materi pengukuran panjang dan berat. Dimana hasilnya temukan 2 siswa berada dalam kategori tidak paham dengan presentase pemahaman 15%, 4 siswa dalam kategori kurang paham dengan tingkat presentase pemahaman 20%, 6 siswa dalam kategori paham dengan presentase pemahaman 30 %, 8 siswa dalam kategori sangat pahan dengan presentase pemahaman 35%.
KESALAHAN SISWA DALAM MENYELESAIKAN SOAL PERPANGKATAN DAN BENTUK AKAR DITINJAU DARI PERBEDAAN GENDER
Authors: Listanti Fitriana , Ihsan Imami Adi
Published: July 2024

Penelitian ini bertujuan untuk mengetahui: (1) jenis kesalahan, (2) tingkat kategori kesalahan, dan (3) penyebab siswa melakukan kesalahan dalam menyelesaikan soal perpangkatan dan bentuk akar berdasarkan kriteria Watson ditinjau dari perbedaan gender. Jenis penelitian yang digunakan adalah penelitian deskriptif dengan pendekatan kualitatif. Subjek penelitian ini terdiri dari enam subjek yaitu tiga siswa perempuan dan tiga siswa laki-laki. Instrumen yang digunakan dalam pengumpulan data adalah instrumen tes dan pedoman wawancara. langkah penyelesaian dan jawaban akhir. Di sisi lain, siswa perempuan cenderung melakukan kesalahan-kesalahan yang masuk dalam kategori “kesalahan kecil” dalam Hasil penelitian menunjukkan bahwa terdapat siswa laki-laki cenderung melakukan prosedur tidak tepat dengan kategori kesalahan cukup tinggi dimana siswa melakukan usaha dalam menyelesaikan soal akan tetapi kurang memahami konsep pengerjaan soal sehingga mendapatkan kesimpulan yang tidak tepat. Selain itu,  siswa tidak mengetahui cara menjawab soal dengan benar sehingga menyebabkan ketidakkonsistenan permasalahan hierarki keterampilan, kurang perhatian dalam menghitung beberapa operasi aritmatika yang terlibat dalam langkah-langkah penyelesaian masalah, dan salah dalam mengambil kesimpulan kesalahan yang termasuk dalam kategori “kesalahan kecil”. Pada kategori “salah”, siswa menjawab pertanyaan karena jawaban siswa tidak sesuai dengan pertanyaan dan data yang ada.
PENGEMBANGAN E-MODUL BERBASIS PBL UNTUK MENINGKATKAN PEMAHAMAN KONSEP SISWA PADA MATERI SPLDV DI SMP NEGERI 1 BANTUR
Authors: Irmawati Irmawati , Hadi Syaiful
Published: July 2024

Pembelajaran matematika di sekolah sering dianggap monoton, menyebabkan pemahaman konsep siswa rendah. Keterbatasan waktu di kelas mempengaruhi penguasaan konsep siswa, terutama dalam topik SPLDV. Untuk mengatasi permasalahan tersebut diperlukan media pembelajaran yang interaktif salah satunya yakni e-modul berbasis PBL. Penelitian ini bertujuan untuk (1) mendeskripsikan langkah-langkah pengembangan e-modul berbasis PBL pada SPLDV, (2) mendeskripsikan validitas e-modul berbasis PBL pada SPLDV, (3) mendeskripsikan kepraktisan e-modul berbasis PBL pada SPLDV, dan (4) mendeskripsikan efektivitas e-modul berbasis PBL dalam meningkatkan pemahaman konsep siswa. Metode penelitian menggunakan model ADDIE, dengan subjek penelitian adalah siswa kelas VIII SMPN 1 Bantur. Teknik pengumpulan data meliputi observasi, angket, dan tes. Teknik analisis data mencakup analisis validitas, kepraktisan, dan keefektifan media pembelajaran yang dikembangkan. Hasil penelitian menunjukkan bahwa (1) langkah-langkah pengembangan media pembelajaran e-modul berbasis PBL menggunakan model ADDIE dimulai dari analisis, desain, pengembangan, implementasi, dan evaluasi. (2) Validitas media pembelajaran dari validasi media, materi, dan bahasa memperoleh persentase berturut-turut 94,7%, 93,3%, dan 98,1%, menunjukkan bahwa media tersebut valid (3) Kepraktisan media pembelajaran dari hasil observasi pendidik, angket respon pendidik, dan angket respon siswa berturut-turut memperoleh persentase sebesar 94,3%, 98,3%, dan 90,1%, menunjukkan bahwa media tersebut praktis (4) Efektivitas media pembelajaran dari hasil tes pembelajaran memperoleh persentase ketuntasan klasikal sebesar 81%, menunjukkan bahwa media pembelajaran e-modul berbasis PBL efektif dalam meningkatkan pemahaman konsep siswa.
ETNOMATEMATIKA PADA PERMAINAN TRADISIONAL NEKER (KELERENG)
Authors: Dwi Putra Eric , Indah Lestari Wiwin
Published: July 2024

Matematika digunakan dalam kegiatan budaya masyarakat tradisional dan non-tradisional. Etnomatematika mengacu pada ide-ide matematika yang diintegrasikan ke dalam suatu budaya. Budaya tersebut dapat dijadikan sebagai upaya transformasi untuk mengeksplorasi konsep-konsep matematika guna mendekatkan matematika pada realitas dan pemahaman masyarakatnya. Selain itu, budaya dapat digunakan sebagai landasan matematika sekolah. Penelitian ini menyelidiki etnomatematika sebagai ilustrasi konteks penerapan geometri pada permainan kelereng. Data dikumpulkan melalui praktik bermain kelereng dan wawancara, serta catatan tentang hasil permainan dan analisisnya. Dengan menggunakan pendekatan etnografi, data dikurangi, disajikan, dan dianalisis. Hasil penelitian menunjukkan bahwa permainan kelereng tradisional memiliki unsur-unsur etnomatematika yang berkaitan dengan konsep-konsep matematika, termasuk konsep geometri yang dapat diwakili dalam bentuk bangun sisi datar seperti lingkaran dan segiempat. Ide-ide matematika ini dapat digunakan dalam budaya lokal untuk memperkenalkan dan memahami konsep geometri dan jarak. Selain itu, siswa menunjukkan berbagai hasil berpikir kreatif matematika. Kearifan lokal Indonesia dapat dikomunikasikan melalui permainan kelereng dan digunakan sebagai sumber matematika kontekstual di sekolah pedesaan dan perkotaan.
ANALISIS KEMAMPUAN KOMUNIKASI MATEMATIS SISWA SMP PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL
Authors: Tri Rahmah Aneu , Hidayati Nita
Published: July 2024

Tujuan penelitian ini untuk mendeskripsikan kemampuan komunikasi matematis siswa dalam menyelesaikan soal materi sistem persamaan linear dua variabel. Kemampuan komunikasi matematis siswa ditinjau berdasarkan 3 indikator yaitu kemampuan mengekspresikan ide-ide matematika melalui lisan, tulisan, dan mendemonstrasikannya serta menggambarkan secara visual; kemampuan memahami, menginterpretasikan, dan mengevaluasi ide-ide matematika baik secara lisan, maupun dalam bentuk visual lainnya serta kemampuan menggunakan istilah, notasi matematika dan struktur-strukturnya untuk menyajikan ide, menggambarkan hubungan dan model situasi. Subjek penelitian ini adalah siswa kelas VIII SMP. Penelitian ini menggunakan jenis penelitian deskrptif kualitatif. Untuk teknik pengumpulan data menggunakan teknik dokumentasi dan teknik pengerjaaan soal. Teknik analisis data menggunakan reduksi data, penyajian data dan verifikasi atau penarikan kesimpulan sedangkan keabsahan data pada penelitian kualitatif ini menggunakan triangulasi teknik. Hasil penelitian menunjukkan bahwa siswa kategori tinggi mampu mengekspresikan ide-ide matematika melalui lisan, tulisan, dan mendemonstrasikannya serta menggambarkan secara visual dengan baik. Siswa kategori sedang mampu mengajukan dugaan tetapi kurang baik serta belum mampu memberikan alasan atau bukti terhadap solusi dengan benar dan tepat. Siswa kategori rendah belum mampu mengajukan dugaan dengan baik dan belum mampu memberikan alasan atau bukti terhadap solusi. Siswa kategori sedang dan rendah mampu melakukan manipulasi matematika tetapi hasilnya tidak benar. Kemampuan komunikasi matematis siswa dalam menyelesaikan soal cerita membutuhkan pemahaman yang sangat baik sehingga tidak sedikit siswa yang membaca soal secara berulang-ulang.
PENGEMBANGAN E-MODUL BERBANTUAN GEOGEBRA PADA MODEL DISCOVERY LEARNING UNTUK MENINGKATKAN KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA SMPN 4 TEBING TINGGI
Authors: Hafizhah Husna Nur , Hia Yasifati
Published: July 2024

Penelitian ini bertujuan untuk mengetahui kevalidan, kepraktisan, keefektifan e-modul berbantuan geogebra pada model discovery learning serta untuk mengetahui peningkatan kemampuan pemahaman konsep matematis siswa melalui e-modul pada materi sistem koordinat kartesius.  Jenis penelitian yang digunakan adalah penelitian pengembangan atau Research and Development (R&D). Penelitian ini menggunakan model pengembangan ADDIE yang mana terdiri dari lima tahap yaitu: Analysis, Design, Development, Implementation, dan Evaluation. Produk yang dikembangkan berupa e-modul berbantuan geogebra pada materi sistem koordinat kartesius, subjek uji coba dalam penelitian ini adalah siswa kelas VIII-5 SMPN 4 Tebing Tinggi. Hasil penelitian menunjukkan: (1) Kevalidan bahan ajar berdasarkan penilaian dosen ahli ditinjau berdasarkan isi media mendapatkan rata-rata nilai sebesar 3,75 dengan kriteria “valid”. Kemudian ditinjau berdasarkan konstruk media mendapatkan rata-rata nilai sebesar 3,75 dengan kriteria “valid”. (2) Kepraktisan bahan ajar berdasarkan respon siswa pada uji kelompok kecil sebesar 83,25% dan pada uji lapangan sebesar 89,72%, kemudian berdasarkan respon guru setelah menggunakan media mendapatkan rata-rata persentase sebesar 90% termasuk kriteria “sangat praktis”. (3) Keefektifan bahan ajar berdasarkan hasil ketuntasan belajar siswa setelah   menggunakan   e-modul   sebesar   88,1% dan ketercapaian    ketuntasan    belajar    berdasarkan    indikator    pemahaman konsep mendapatkan persentase total sebesar 83%. (4) Peningkatan kemampuan pemahaman konsep dilihat berdasarkan hasil rata-rata pretest sebesar 55,95 menjadi rata-rata posttest sebesar 82,85. Kemudian didukung oleh hasil perolehan analisis N-Gain yaitu 0,62 berada pada interval 0.3 ?  < 0.7 tergolong “sedang”. Berdasarkan hasil penelitian, kemampuan pemahaman konsep matematis siswa meningkat maka penggunaan e-modul berbantuan geogebra pada model discovery learning dapat dikatakan layak dengan kategori valid, praktis dan efektif.
PENGARUH MODEL KOOPERATIF TIPE TEAMS GAMES TOURNAMENT (TGT) PADA PEMBELAJARAN MATRIKS TERHADAP HASIL BELAJAR SISWA KELAS X SMK MADINATUL ULUM
Authors: Abduh Assayidi Ahmad , Andhita Cahyo Sujiwo Dimas , Noviani Sulisawati Dwi
Published: July 2024

Penelitian ini bertujuan untuk mengetahui adanya pengaruh penggunaan model kooperatif tipeTeams Games Tournament (TGT) dalam pembelajaran matriks terhadap hasil belajar siswa kelas X di SMK Madinatul Ulum. Instrumen penelitian terdiri dari tes berbentuk lima soal esai dan dokumentasi. Pembelajaran dibagi ke dalam kelompok-kelompok belajar beranggotakan 5 hingga 6 siswa. Setelah pembelajaran, diadakan turnamen permainan akademik antar tim untuk mengakumulasi poin bagi setiap tim. Pendekatan ini terdiri dari lima tahapan: penyajian kelas, belajar dalam kelompok, permainan, pertandingan, dan penghargaan. Metode penelitian yang digunakan adalah eksperimen dengan bentuk Pre-Elxperimental Desain dengan jenis rancangan One Group Pretest-Posttest Design. Hasil analisis statistik menunjukkan nilai Signifikansi (2-tailed) sebesar 0,000 < 0,05, sehingga H0 ditolak dan Ha diterima. Dengan demikian, dapat disimpulkan bahwa terdapat perbedaan rata-rata antara hasil belajar Pre Test sebesar 59,8750 dan hasil belajar Post Test sebesar 77,5417, menunjukkan bahwa penggunaan Model Kooperatif Tipe Turnamen Permainan Tim (TGT) berpengaruh signifikan terhadap hasil belajar siswa kelas X di SMK Madinatul Ulum.
Pengaruh Penambahan Serat Asbes Terhadap Sifat Refractory Brick Berbahan Kaolin dan Fly Ash
Authors: Handoko Dwi , Azmal Azmal , Iyus Iyus
Published: July 2024

Abstract: This study aims to determine the effect of adding asbestos to the production of refractory bricks with different material compositions, namely kaolin, fly ash, asbestos and standard water. The composition of kaolin and fly ash is given in equal percentages, varying according to the mass of asbestos, 0 (%), 10 (%), 15 (%), 20 (%), 30 (%). The tests carried out are thermal conductivity and mechanical properties, where these results become parameters for determining the best composition. The results of testing the compressive strength of refractory bricks showed that 0 (%) quartz sand composition had the largest compressive strength, namely 14.40 (Mpa), the impact test results for 0 (%) asbestos fiber composition had the largest value, namely 0.084 (Joule/mm2), while the results Heat conductivity testing showed that quartz composition 30 (%) had the lowest value, namely 0.373 K(W/mC), thus the addition of asbestos fiber can reduce heat conductivity but cause a decrease in the compressive and impact mechanical properties of refractory bricks.
Keywords: Refractory bricks, refractories, kaolin, fly ash, asbestos
Smart Mini Water Chiller Ramah Lingkungan Berbasis Termoelektrik
Authors: Mutaufiq Mutaufiq , Yogasmana Yopi , Berman Ega Taqwali , Sumardi Kamin , Wiyono Apri
Published: July 2024

Chiller merupakan salah satu alat peraga mesin pendingin yang ada di Laboratorium Refrigerasi Universitas Pendidikan Indonesia. Alat ini masih menggunakan sistem refrigerasi kompresi uap sehingga membutuhkan kompresor berenergi listrik besar serta refrigeran sintetik yang kurang ramah terhadap lingkungan. Penelitian ini bertujuan untuk merancang bangun Smart Mini Water Chiller (SMWC) sebagai sistem pendingin yang ramah lingkungan dan hemat energi. Sistem pendingin SMWC dirancang menggunakan termoelektrik yang tidak membutuhkan freon dan kompresor seperti sistem refrigerasi kompresi uap. Sehingga sistem pendingin SMWC ramah terhadap lingkungan dan juga hemat energi listrik. Selain itu sistem pendingin SMWC dirancang menggunakan sistem kendali ON/OFF dan monitoring temperatur melalui telepon seluler. Penelitian telah dilakukan secara eksperimen dengan pendekatan research and development yang meliputi concept, design, collecting materials, assembly, dan uji coba. Pengujian dilakukan untuk mengetahui kehandalan SMWC ketika dioperasikan secara luring dan daring. Hasil pengujian menunjukkan bahwa, SMWC dapat dikontrol secara ON/OFF dan dipantau performanya dari jarak jauh. Temperatur minimum yang dapat dicapai SMWC saat menggunakan beban udara yaitu 4,8 oC dan saat menggunakan beban air sebesar 21,9 oC. Sedangkan rerata konsumsi energi listrik SMWC sebesar 454,67 10-4 kWh untuk beban udara dan 458,08 10-4 kWh untuk beban air.
Diagnostic Code for Psychologists. Part II of the Code of Ethics of the Polish Psychological Association
Authors: Wójtowicz Beata
Published: July 2024

The aim of this article was to present the Diagnostic Code for Psychologists developed by a team of experts on 1 October 2020. As of 2018, the Code of Ethics of the Polish Psychological Association (PPA) consists of three distinct parts, and the diagnostic code constitutes the second part. Detailed ethical guidelines for mental health assessments have been developed by a team of experts from different fields of psychology and reviewed by the members of the professional community. All comments were taken into consideration in the revision process, and the developed principles were modified. The diagnostic code was submitted to the Management Board of the PPA on 27 October 2020, and approved by the Extraordinary General Assembly of PPA Delegates.
The ethical principles for mental health assessments included in 21 articles are in force with the Code of Ethics of a Psychologist (PPA, 2018) and the “Standards of Psychological Diagnosis” (PTP, 2020), together forming a three-tier structure of the code in the field of psychological assessment. The diagnostic code applies mainly to mental health assessments. It can be also used to make clinical diagnoses during the therapeutic process based on the specific requirements of this therapeutic modality.
The PPA has implemented a three-tier model of ethical principles in mental health diagnosis. These regulations provide psychologists with significant support in daily practice, in particular psychologists who make formal diagnoses that carry legal consequences for health care, social policy, education, and legal proceedings. The text presented in this paper is an official PPA document and can encourage practitioners and professional ethics lecturers to reflect on the dilemmas associated with diagnoses and mental health assessments.