bluuebunny/crossref_metadata_2025_split huggingface dataset:
Dampak Penerapan Kegiatan Profil Pelajar Pancasila dalam Menumbuhkembangkan Sikap Mandiri Siswa di SMAN 2 Mataram
Authors: Nurul Nurul Istiqomah , Mustari Mohammad , Kurniawansyah Edy , Alqadri Baqdawansyah 
Published: February 2024

Penelitian ini dirancang dan diteliti oleh peneliti karena dengan keadaan karakter regenerasi bangsa kita sekarang yang perlu dilaksanakan pembinaan secara terstrstruktur dan terencana melalui kegiatan yang tepat seperti halnya kegiatan Profil Pelajar Pancasia yang memiliki eksitensi untuk membina dimensi kemandirian, kerjasama, berkebhinekaan, dan jiwa kreatif pada siswa sehingga peneliti berusaha mengungkap dengan tujuan untuk mengetahui jenis-jenis kegiatan Profil Pelajar Pancasila di SMAN 2 Mataram, serta melihat dampak Penerapan kegiatan Profil Pelajar Pancasila terhadap penumbuhkembangan sikap mandiri siswa di SMAN 2 Mataram. Penelitian ini menggunakan pendekatan kualitatif dengan jenis penelitian deskriptif. Adapun teknik pengumpulan data yang digunakan adalah teknik wawancara, observasi, dan dokumentasi. Teknik analisis data yang digunakan adalah model Miles and Huberman dengan langkah-langkah yang meliputi mengumpulkan data, reduksi data, penyajian data, dan penarikan kesimpulan. Uji keabsahan data yang digunakan dalam penelitian ini merujuk pada teori Sugiyono yaitu Triagulasi Sumber dengan mencari kebenaran data melalui sumber informan 3 orang atau lebih, dan Triagulasi teknik yaitu dengan menyilangkan teknik wawancara, observasi, dan dokumentasi. Hasil penelitian menunjukkan bahwa dalam hal penerapan kegiatan Profil Pelajar Pancasila, SMAN 2 Mataram melaksanakan 3 jenis kegiatan yaitu tema 1 bangunlah jiwa dan raganya, tema 2 kewirausahaan, Tema 3 kearifan lokal. Kegiatan ini mampu memberikan dampak terhadap penumbuhkembangan sikap mandiri siswa di SMAN 2 Mataram yang dilihat oleh peneliti berdasarkan hasil observasi peneliti dengan mangacu pada teori Paulina dkk. Dengan adanya kegiatan Profil Pelajar Pancasila mampu memberikan dampak positif terhadap peningkatan sikap mandiri siswa, dampak yang terlihat adalah dengan membuat kerajinan dari bahan limbah, melaksanakan kegiatan wirausaha makanan siap saji, membuat tari kreasi yang dapat menunjang kreatifitas siswa ke arah kemandirian.
Implementasi Pembiasaan Literasi untuk Meningkatkan Kemampuan Membaca Permulaan Siswa Kelas I SDN Bugels
Authors: Febriani Venny , Nisa Ana Fitrotun 
Published: February 2024

Dalam kehidupan sehari-hari, kita tidak lepas dari pengunaan bahasa sebagai alat komunikasi. Bahasa digunakan sebagai alat komunikasi utama bagi manusia untuk mengungkapkan ide, perasaan, maupun keinginannya. Salah satu fokus pembelajaran bahasa di Sekolah Dasar yang memegang peranan penting adalah pembelajaran membaca. Anak akan mengalami kesulitan belajar dikemudian hari apabila mereka tidak memiliki kemampuan membaca yang memadai sejak dini. Kemampuan membaca ini menjadi dasar utama tidak hanya di pembelajaran bahasa sendiri, tetapi juga bagi pembelajaran mata pelajaran lain. Ketertarikan anak pada kegiatan membaca bisa dibiasakan dengan melakukan kegiatan literasi secara teratur dan berkelanjutan. Tujuan dari artikel ini adalah untuk menganalisa implementasi pembiasaan literasi untuk meningkatkan kemampuan membaca permulaan bagi siswa kelas I SD Negeri Bugel. Penelitian ini menggunakan desain penelitian kuantitatif. Hasil dari penelitian ini menunjukkan bahwa implementasi pembiasaan literasi di SD Negeri Bugel sudah terlaksana. Melalui penerapan metode scramble kalimat, siswa kelas I menjadi lebih antusias dalam belajar sehingga kemampuan membaca permulaannya pun meningkat.
Kata kunci: kemampuan membaca, scramble, kartu kata
Conhecimento de estudantes de Odontologia sobre prescrição e o uso de medicamentos
Authors: Kula Jeniffer , Melo Norma Suely Falcão de Oliveira , Lima Antonio Adilson Soares de 
Published: February 2024

Este estudo teve como objetivo analisar o conhecimento de 335 estudantes de Odontologia sobre prescrição e uso de medicamentos. Os participantes foram divididos em dois grupos: Grupo I - composto por 136 alunos do último período/semestre do curso de Odontologia e o Grupo II - composto por 199 alunos que haviam concluído recentemente a disciplina de Terapêutica Medicamentosa/Farmacologia (segundo semestre da graduação). Os estudantes responderam a um questionário com 19 perguntas fechadas dividido em três blocos de interesse, Bloco A (5 perguntas sobre sua formação acadêmica); Bloco B (4 perguntas sobre legislação e prescrição de medicamentos) e Bloco C (10 perguntas sobre prescrição comum em casos de risco aumentado por comorbidade em Odontologia). O instrumento foi validado após a aplicação de três estudos piloto em 60 alunos voluntários que recentemente haviam concluído a disciplina de Terapêutica Medicamentosa/Farmacologia. Os resultados permitiram classificar o nível de conhecimento como ruim, moderado, bom ou excelente de acordo com a estratificação adotada pelos autores. A maioria dos alunos entrevistados era do sexo feminino, com 22 anos de idade. De acordo com os resultados, 70% dos participantes afirmaram que a duração da disciplina Farmacologia/Terapêutica Aplicada à Odontologia foi insuficiente para que se sentissem seguros ao prescrever medicamentos. Os dados apresentados mostraram que no bloco “B” apenas 19% dos alunos sabiam quem é o responsável pelo documento de prescrição. Além disso, 57% identificaram os itens obrigatórios em uma prescrição antimicrobiana. O índice de sucesso do bloco “C” mostrou que os participantes apresentaram conhecimento razoável envolvendo as questões sobre indicação e prescrição de medicamentos tanto em situações regulares quanto em situações de risco na Odontologia. O conhecimento médio dos alunos quanto à indicação e prescrição de medicamentos revela um problema na formação acadêmica relacionada à terapia medicamentosa.
Penentuan Titik Lokasi Daerah Rawan Banjir Di Kabupaten Malaka Menggunakan Metode K-Means Clustering
Authors: Moruk Fransiskus Xaverius , Boboy Vito Daniel , Tahuk Wilhelmina Johana , Kamirsa Yota Putra , Kaesmetan Yampi R 
Published: February 2024

Banjir di Kabupaten Malaka telah menjadi permasalahan utama dalam kehidupan sosial masyarakat. Pada musim hujan dalam waktu singkat beberapa lokasi mengalami banjir, yang mengakibatkan terhambatnya transportasi, aktivitas serta tidak jarang disertai dengan permasalahan kesehatan. Salah satu upaya untuk membantu lebih mempermudah informasi mengenai zona daerah rawan banjir dengan membuat pemetaan zona daerah rawan banjir menggunakan SIG, software QGIS dengan metode K-Means Clustering. Maka dilakukan digitasi peta kabupaten malaka agar memperoleh hasil pemetaan daerah rawan banjir. Proses pemetaan daerah rawan banjir diambil berdasarkan pengolahan data curah hujan, jenis tanah, lereng dan daerah aliran sungai Kabupaten Malaka. Hasil penelitian di peroleh 5 kelas daerah rawan banjir diantaranya sangat rawan, rawan, terancam, aman dan paling aman dengan perhitungan K-Means Clustering dengan 3 tingkat Cluster. Daerah yang berpotensi sangat rawan banjir adalah daerah yang berada di Kecamatan Malaka Barat dan wewiku dan sedangkan daerah yang rawan banjir berada di Kecamatan Malaka Tengah dan Weliman. Kesimpulan penelitian tingginya potensi banjir dibeberapa daerah di Kabupaten Malaka selain disebabkan beberapa daerah memiliki curah hujan yang berbeda, juga dipengaruhi oleh jenis tanah, lereng dan aliran sungai.
Optimizing Vertical-Axis Wind Turbine Performance and Determining Optimal Velocity and Deflector Configuration Based on Wind Speed
Authors: Lakshani, W.A.A.  , Piyathilaka, P.  , Thilakarathna, S.  
Published: February 2024

In the realm of wind energy harnessing, Vertical-axis Wind Turbines (VAWTs) have emerged as promising alternatives. However, they face persistent challenges due to their low efficiency and poor self-starting properties. This study addresses these limitations and aims to unlock the full potential of VAWTs by conducting a comprehensive investigation. The focus of this research lies in determining the optimal operating velocities to enhance the performance of Savonius-type VAWTs, leveraging advanced deflectors. The study delves into an in-depth analysis of the optimal deflector distances and angles for the turbine, taking into account different geographical areas with varying wind velocities. To achieve this, a Savonius-type VAWT equipped with advanced wind deflectors was meticulously designed and tested. Utilizing SOLIDWORKS software, sophisticated turbine models were crafted, which were then subjected to rigorous analysis using ANSYS Fluent, Computational Fluid Dynamics (CFD) software. The research methodology involved conducting simulations across a range of wind velocities, spanning from 1 ms-1 to 8 ms-1, and changing the deflector distance from 100 cm to 150 cm from the centre of the turbine, and the deflector angle from 12 to 45 degrees. During the simulations, critical indicators of turbine performance, including moment coefficient, moment, force coefficient, and force acting on the blade, were closely examined. The study uncovered significant variations in the power output of the Savonius-type vertical-axis wind turbine (VAWT) fitted with an advanced deflector system, especially at lower wind speeds. Notably, the study revealed that at different wind velocities, the optimum deflector configuration changed, with the highest energy-generating capacity observed at 1 m/s for the wind turbine equipped with advanced deflectors. Outperforming the turbine lacking a deflector system, this inventive method demonstrates the capacity to notably boost energy generation. This novel method underscores the capacity for substantial improvements in energy production. Additionally, the research offers valuable insights into customized deflector distance and angle combinations, optimizing turbine performance for specific wind velocity ranges. By strategically positioning the deflectors, higher energy output can be achieved, making the VAWT system more adaptable and efficient across diverse wind conditions

Keywords: Vertical-axis wind turbine, Wind deflectors, Computational Fluid Dynamics, SOLIDWORKS, ANSYS Fluent
Assessing the Ecotourism Potential in Sarasalai-Kuruvikkadu and Adjacent Areas in the Jaffna Peninsula, Sri Lanka
Authors: Packiyanathan, R.  , Wijesundara, C.S.  
Published: February 2024

Ecotourism is environmentally responsible, enlightening travel and visitation to relatively undisturbed natural areas in order to enjoy and appreciate nature (and any accompanying cultural features both past and present) that promotes conservation, has low visitor impact, and provides for beneficially active socio-economic involvement of local populations. Sarasalai Kuruvikkadu and adjacent areas such as Anthanathidal and Kapputhu in the Jaffna District are rich with significant extents of mangroves that are notable for their waterbirds’ diversity. The diversity and abundance of birds and the ecotourism potential of those areas have not been evaluated probably due to the three decades long civil unrest. The objective of the present study was to evaluate the nature-based ecotourism potential of Sarasalai Kuruvikkadu and adjacent areas. Geographic Information System was used as tool for identify the potential status of entire Jaffna District. Suitability analysis was applied and Multi Criteria Decision Method (MCDM) and criteria ranking method were used. Three aspects such as Flamingo sites (13), other birds’ sites (40) and mangroves areas (66) in the district including study areas were considered for suitability analysis. The evaluating process for ecotourism sites were conducted based on criteria viz. species richness (of birds), tourist preferences, proximity to residential areas, proximity to accommodation, distance from roads, scenic beauty and density and distribution. Based on each three analysis, Potentials sites were derived based on priority ranking such high, moderate, and low potential. Through the overall analysis, the study areas, Sarasalai and Anthanathidal come under the high potential areas (> 75%) and Kapputhu represents lower potential (<45%) based on flamingo and other birds aspects but based on mangrove sites’ analysis, both areas represent high potential status and Kapputhu represents lower status. Our recent studies have shown that Sarasalai is home to at least 82 species of waterbirds (Margalef’s Index 6.74) and Anthanathidal represents 47 species (Margalef’s Index 9.23) and Kapputhu 22 species (Margalef’s Index 3.04). In addition to some of mammals, crocodiles and fishes were recorded in the study areas that have a high potential for promoting ecotourism. The areas had a high abundance of flamingos, which are a major Avi-tourist attraction. The study areas have large extents mangroves (896.6 ha) with four true mangrove species, Excoecaria agallocha, Lumnitzera racemosa, Rhizophora mucronate and Aegiceras corniculatum which is a unique ecotone and attraction and sources for ecotourism. Hence these areas have a great nature-based tourism potential. There is also a great potential for the participation of local people for promotion of ecotourism in the Jaffna peninsula, elevating their poverty.

Key words: Sarasalai, Kuruvikadu, Ecotourism potential, Mangroves, Flamingo
Hydrothermal Synthesis of Antimicrobial Carbon Dots from the Soot of Three Different Essential Oils
Authors: Fernandez, A.B.  , , Buddhinie, P.K. C.  , Vithanage, M.  
Published: February 2024

Carbon dots (CDs) have garnered the interest and demand of researchers over the years, and they are also favoured as a novel and better alternative to conventional antibiotics and other antimicrobial agents. While the antimicrobial properties of CDs differ with the precursors used, a synergistic effect is expected to arise from the use of antimicrobial compounds as precursors in the synthesis of CDs. Therefore, in this study, a novel green method was introduced for the hydrothermal synthesis of carbon dots using the soot of three essential oils (EOs) as the carbon source; clove (Syzygium aromaticum), cinnamon (Cinnamomum zeylanicum) and citrus (Citrus aurantifolia); in the absence of surface passivating agents. Here, the three essential oils were burned and the carbon soot from each oil was collected separately. Then the carbon soot was subjected to hydrothermal treatment by heating at 160° C for 3 hours without any doping or modification. The obtained carbon dots were characterized by Scanning Electron Microscopy (SEM), UV-Vis spectroscopy, FT-IR spectroscopy and Fluorescence analysis. The SEM images of the three types of essential oil-derived CDs were crucial for determining the size, shape, and surface morphology of the prepared CDs. While clove CDs and cinnamon CDs were mostly spherical in shape, citrus CDs exhibited irregular shapes, which could be attributed to the agglomeration of the particles as evident from the SEM images. The results showed that the average particle diameter of the CDs was found to be 56.50±7.75 nm, 56.11±8.11 nm, and 61.67±10.21 nm, for clove CDs, cinnamon CDs and citrus CDs, respectively. UV-Vis spectroscopy analysis further confirmed the formation of CDs as absorption peaks at wavelengths of 205 nm, 215 nm and 244 nm were obtained for citrus, cinnamon and clove CDs respectively. These peaks could be attributed to the π→π* transition of C=C bonds of sp2 carbons. FT-IR spectroscopy was carried out to determine the functional groups in the prepared CDs, as functional groups are responsible for the antimicrobial properties of CDs. In addition to these, the fluorescence analysis confirmed the synthesis of CDs, as CDs are known to be fluorescent. The antibacterial properties of the synthesized CDs were then investigated against Pectobacterium sp. isolated and characterized from the soft rot of carrot.

Keywords: Carbon dots, Essential oils, Hydrothermal synthesis, Antimicrobial, Aggregation
Unrevealing the Enhanced Laccase Activities of Phlebiopsis flavidoalba in the Presence of Lignin-Rich Raw Materials using Molecular Docking
Authors: Senavirathna, T.M.Y.H.  , Perera, P.  , Attanayake, R.N.  
Published: February 2024

Laccase, a versatile enzyme that belongs to the multi-copper oxidase family, exhibits extraordinary lignin-degrading capabilities. Among the diverse types of laccases, white-rot fungal laccases are considered some of the best lignin degraders, with various biotechnological and industrial applications. In our previous study, it was found that a wood-decaying white rot fungus, Phlebiopsis flavidoalba, is one of the highest laccase producers in vitro in the presence of rice husks as the raw material. However, it is unclear the exact mechanism and whether laccase directly interacts with the raw material, in this case, rice husks and its lignin model compound. Hence, the objective of the current study was to obtain laccase gene sequence from P. flavidoalba and subject it to molecular docking with lignin model compounds that are particularly found in rice husks to determine binding affinities to the active sites of enzyme. The laccase gene sequence of P. flavidoalba was obtained from the next-generation sequence data set obtained in our previous study and subjected to in silico homology modelling and molecular docking using various lignin model compounds reported to be present in rice husks. Firstly, to predict the 3D structure of the laccase of P. flavidoalba, homology modelling was performed using SWISS-MODEL. Laccase from Steccherinum murashkinskyi was selected as the template for homology modelling using SWISS-MODEL. CB-Dock server was used to perform molecular docking studies with a range of lignin model compounds, including sinapyl alcohol, coniferyl alcohol, 𝜌- coumaryl alcohol, β-O-4′ aryl ether, β-5′ phenylcoumaran which are commonly found in rice husks. It was found that the above-mentioned lignin model compounds exhibited strong binding affinities such as -5.9 kcal/mol (sinapyl alcohol), -6.5 kcal/mol (coniferyl alcohol), -8.6 kcal/mol (𝜌- coumaryl alcohol), -7.5 kcal/mol (β-O-4′ aryl ether), and -7.5 kcal/mol (β-5′ phenylcoumaran) with the laccase protein of P. flavidoalba. The amino acid residues of modelled laccase in contact with the lignin model compounds forming hydrogen bonds were Gln457, Ile434, Phe432, Arg370, Lys452, Ile365. The insights gained from these docking studies can help uncover the molecular level interactions and the potential of utilizing such low-cost carbon sources for boosting laccase production.

Keywords: Homology modelling, Laccase, Lignin model compounds, Molecular docking, Rice husk
A Review on the Utilization of Herbarium Data in Phenological Research Addressing Climate Change Implications
Authors: Sathischandra, M.K.D.P.M.  
Published: February 2024

In recent years, the profound impact of climate change on biodiversity has become increasingly evident, with significant consequences for critical life events in the natural world. It underscores the significant influence of climate variations on seasonal life events within the biotic environment of flora, such as blooming response, leaf growth, leaf senescence and fruit ripening. These phenological shifts, particularly in temperate and tropical ecosystems, serve as vital indicators of climatic changes. This review study delves into the intricate relationship of herbarium data for bridging the gap in plant phenological observation for the investigations on climatic change. This comprehensive literature review of 30 key research papers published in the past two decades, which focus on the utility of herbarium specimens as tools to document phenological changes, was critically analysed in this research study. Long-term observation of phenological data by various phenological observation networks has paved the way for advanced environmental analysis in climatic change studies. However, despite the importance of phenological data from field observation, its collection and long-term observation records, present challenges, emphasizing the need for spatiotemporal depth of phenological data. A noticeable gap in field data collection has hindered various studies reliant on plant phenological data. In response to these challenges, herbaria serve as invaluable repositories of plant specimens, boasting rich historical records spanning over a century, providing a deep spatiotemporal and taxonomic insight. Research findings indicate the fidelity of herbarium records to fill the gap in field observations, with no significant differences between the field observations and herbarium data, highlighting the reliability of herbarium data in capturing phenological information. Overcoming the challenges associated with extensive herbarium datasets, digitalization and the implementation of crowdsourcing platforms have emerged as effective strategies, granting researchers easy online access to these data. Moreover, it is evident that in Sri Lanka, there exists a research gap in utilizing herbarium data for phenological studies in climate change observation and the implementation of online accessibility for herbarium data, highlighting the need to address this gap in future research endeavours.

Keywords: Climate change, Herbarium data, Biodiversity, Phenological data
Antifungal Activity of Selected Indigenous Medicinal Plants in Sri Lanka Against Candida Infections
Authors: Dilrukshi, K.T.  , Sadeepa H.D.D.  , Manage, P.M.  
Published: February 2024

Candida infections have been recorded as an emerging health concern among immune- compromised patients, infants and pregnant women in Asia, Africa and Europe. Skin diseases, genital infections, candidiasis and candidemia caused by overgrowth of symbiotic Candida species in the human body are treated by antifungal drugs. The common drugs viz., fluconazole, flucytosine, amphotericin B, nystatin, etc. are responsible for more side effects in the human body while Candida species are indicating a resistance towards them. Therefore, the continuous discovery of antifungal compounds against Candida infections is an essential process. Thus, the current study focused on the determination of the antifungal activity of water extracts of selected indigenous medicinal plants in Sri Lanka towards Candida infections. Three common indigenous medicinal plants; Cyperus rotundus (roots, tubers, leaves and flowers), Acalipha indica (roots, stem, leaves and flowers) and Aloe barbadensis Miller (gel and leaves) were collected and their water extracts (10 g/25 mL) were screened for the antifungal activity against two common Candida species; Candida glabrata and Candida parapsilosis using disk diffusion method. Briefly, the pathogenic bacterial lawns were prepared by spreading equalized solutions of C. glabrata and C. parapsilosis on Muller Hinton Agar supplemented with 2% glucose. Sterile paper disks soaked with 30 µL of water extracts of each plant part were placed on pathogen lawns. Sterile distilled water was used as the negative control. The plates were incubated at 37° C overnight and observed for clear zone formation. According to the results, the water extract of C. rotundus tubers indicated an inhibitory action by giving clear inhibition zones against both tested Candida species. All other water extracts of medicinal plants indicated negative inhibitory actions against tested Candida species. The results revealed that C. rotundus tubers consist of antifungal activity against C. glabrata and C. parapsilosis. Hence, C. rotundus tubers can be used as an effective treatment for infections caused by the tested Candida species.

Keywords: Antifungal activity, Candida infections, Indigenous medicinal plants, Cyperusrotundus, Water extracts