bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengembangan LKS Berbasis Problem Based Learning Pada Materi Sistem Persamaan Linear Dua Varibel Di Kelas VIII
Authors: Ilham Rahma Dani , Zuzano Fazri , Vermana Listy 
Published: May 2024

This research was motivated by students lacking enthusiasm and being less active in learning mathematics. One effort to overcome this problem is to develop problem based learning worksheets because they can help teachers in developing student centered learning which makes students active in learning. This type of research is development using the ADDIE development model which has 5 stages, namely analysis, design, development, implementation and evaluation. Product trials were carried out at SMP N 1 Kuantan Hilir. The research subjects were 10 students in class VIII.2. The research results showed that problem based learning worksheets were valid by two validators. Worksheets based on problem based learning were declared practical with a score of 63%. So that problem based learning worksheets are valid and practical. From the research, it is recommended that teachers use LKS based on problem based learning as teaching materials and several shortcomings during the research include: (1) in groups of students only a few people are looking for answers and apart from that they only see answers from their group friends (2) students tended to tell stories during learning (3) the researcher did not take all the subjects in the class (4) when filling in the practicality sheet the students were not honest.
PENGUATAN REPRESENTASI VISUAL DALAM PEMBELAJARAN ANALOGI MATEMATIKA PADA MATERI PELUANG
Authors: Tupulu Nasri , Annurwanda Pradipta , Hermiati Konstansia 
Published: May 2024

Tujuan penelitian ini untuk memberikan penguatan kemampuan refresentasi visual dalam pembelajaran analogi matematika pada materi peluang. Penelitian ini merupakan penelitian kualitatif deskriptif Penelitian ini adalah penelitian deskriptif yaitu penelitian yang bertujuan untuk mendeskripsikan kemampuan refresentasi visual dalam pembelajaran analogi matematika . Pendekatan yang digunakan adalah studi kasus. Penelitian ini merupakan penelitian studi kasus karena fokus penelitian ini menjawab bagaimana penguatan refresentasi visual dalam pembelajaran analogi matematik . Pengembangan dikonstruksi melalui tinjauan teoritik, sintesa dari penelitian terdahulu, dan contoh-contoh penguatan kemampuan refresentasi visual. sampel dalam penelitian ini sebanyak 25 peserta didik kelas XII di SMA Maniamas Ngabang tahun pelajaran 2023/2024 untuk memperoleh data hasil penelitian dan hasil wawancara. Alur instrumen data dalam penelitian ini dilakukan melalui soal essay sebanyak 5 soal untuk mengukur kemampuan refresentasi visual dalam pembelajaran analogi matematika dan wawancara langsung dengan 6 peserta didik. Hasil penelitian menunjukkan bahwa kemampuan refresentasi visual peserta didik mengalami peningkatan dengan nilai rata-rata sebesar 77,96 dan analogi matematika peserta didik juga sudah memenuhi 4 kriteria yang ditetapkan dimana terlihat dari kemampuan dalam menemukan kesamaan terkait pengetahuan yang ada dengan target soal yang diberikan. Kemudian dari hasil wawancara langsung peserta didik mengalami peningkatan kemampuan dalam memodelkan secara matematika, mengkomunikasikan ke peserta didik lainnya, dan sudah dapat menentukan kesamaan terkait soal yang diberikan.
Application Of Nearest Neighbor Analysis Methods For The Distribution Of Small Storks (Egretta Garzetta) In The Mangrove Area North Sumatra
Authors: Lestari Trima , Rakhmawati Fibri , Husein Ismail 
Published: May 2024

The penetrating waterbird on the east coast of North Sumatra is Egretta Garzetta. It is a kind of water bird that lives in water or parts of wetlands. The presence of waterbirds is an important indicator to evaluate the environmental quality and productivity of wetlands. Bird distribution patterns are needed to overcome problems related to habitat, such as food availability and population size. This study aims to apply themethod Nearest Neigbord Analysis to the distribution pattern of Egretta Garzetta in the Mangrove area of North Sumatra. This study uses a quantitative approach to the type of applied research (Applied Research). The type of data used in this research is secondary data. Analysis of the data in this study using Nearest Neighbor Analysis. The pattern of the spread of Egretta Garzetta in the Mangrove areas in North Sumatra have clumped pattern (clustered).The results from Nearest Neighbor Analysis show that the index value of the clustered distribution pattern can be caused by the abundance of food sources in a habitat.
Practices of Selected Pharmaceutical Companies on Integration of Community Empowerment to Corporate Social Responsibility (CSR): Development of Holistic and Sustainable CSR Framework
Authors: Espinoza Rayjee 
Published: May 2024

Corporate Social Responsibility (CSR) is a way to inspire business firms to perform in a manner appropriate to the desires of their stakeholders, thus, producing them to act dependably for the benefit of the business and society or community through creating a sustainable development program that could, in turn, gain credibility, positive image and reputation. This study highlights pharmaceutical companies’ practices in terms of CSR integration covering the four levels of CSR - philanthropic, ethical, legal, and economic. It will also discuss how do pharmaceutical companies integrate community empowerment in their CSR activities and up to what extent is the level of integration of community empowerment in terms of levels of society – micro, meso and macro. This research study will use the mixed method which are: qualitative and quantitative methods. The following are criteria in the selection of participants for interview. For qualitative approach, there will be twenty participants from five pharmaceutical companies. For quantitative approach (using survey questionnaire), there will be 360 respondents coming from 30 pharmaceutical companies. The extent of integration of community empowerment in CSR is highly linked to the extent of contribution to holistic and sustainable development.
TAKTIK RETORIS NAJWA SHIHAB PADA PROGRAM TALK SHOW MATA NAJWA DI METRO TV
Authors: Rofii Afif , Yuniarti Lisa 
Published: May 2024

The research aims to describe the rhetorical tactics used by Najwa Shihab on the Mata Najwa talk show program that aired on one of Indonesia’s private television stations, Metro TV. This type of research is qualitative research analyzed by descriptive method. The data type is qualitative data which is the result of conversation transcript of the Mata Najwa talk show Sang Penantang episode which aired on Metro TV. As for data collection technique used is a listening technique with data collection instruments in the form of field records. Based on the findings and analysis, it can be drawn to the conclusion that the rhetorical tactics used by Najwa Shihab in the Mata Najwa on Sang Penantang episode are affirmation and offensive tactics. The affirmation tactive is used by Najwa Shihab to ask questions that are explaining something or asking for approval from the source. "The affirmation tactics used by Najwa Shihab in this program include ""yes"", repeat tactics, togetherness tactics and compromise tactics." Offensive tactics are used by Najwa Shihab to dig up information that is justification, defense and recognition. Offensive tactics used include anticipation tactics, surprising tactics, asking back tactics, provocation tactics, encompassing tactics and overestimating tactics
ANALISIS KEBUTUHAN: PENGEMBANGAN E-MODUL MENULIS PROPOSAL PENELITIAN BERBASIS CONTEXTUAL TEACHING AND LEARNING
Authors: Rofii Afif , Ramli Ramli 
Published: May 2024

In the development of educational models, conducting a needs analysis is crucial to identify existing knowledge and learning gaps among users. This is to ensure that the developed model aligns to their specific needs and offers practical benefits. This research is part of a broader Research and Development entitled A Contextual Teaching and Learning-Based E-Module for Writing Research Proposals. As a part of quantitative approach, this needs analysis utilizes the survey method. A questionnaire designed with a Likert scale serves as the instrument in collecting data. The quantitative data are scores obtained from the questionnaire responses. The descriptive statistic method was used to analyze the data by aligning the obtained scores with predetermined parameters signifying the level of need. The results suggested that the pre-writing stage assigned the students with nine questions at a very high (VH) category and one question within the high (H) category. Similarly, during the writing stage, students were administered to 60 questions divided into 23 questions at the very high (VH) category and 37 questions at a high (H) category. Finally, in the post-writing stage, students were assigned to ten questions comprising of two very high (VH) category questions and eight questions within the high (H) category. As a result, these findings unequivocally demonstrate that students require all the information encompassed within the needs analysis questionnaire throughout the pre-writing, writing, and post-writing phases of writing research proposal. Keywords: Needs analysis, E-Module for Writing Research Proposal, Contextual Teaching and Learning (CTL)
Perbandingan Komposisi Media Tanam Tanah Ultisol, Blotong dan Arang Sekam Terhadap Pertumbuhan Bibit Tebu (Saccaharum officinarum L.) Asal Bud Chips di Polybag
Authors: Situmorang Leonardo Tamoko , Hayata Hayata , Nasamsir Nasamsir 
Published: May 2024

A planting media composition consisting of ultisol soil, composted sugar cane residue (blotong)and husk charcoal is needed to support the growth of sugarcane (Saccharum officinarum L.) seedlings from bud chips. The aim of this research was to determine the comparison of the planting media composition consisting of the ultisol, blotong and husk charcoal on the growth of sugar cane (Saccaharum officinarum L,.) seedlings from Bud Chips in Polybags. This research used a completely randomized design (CRD) with one treatment factor, i.e. the planting media composition consisting of ultisol, blotong and husk charcoal with the following volume ratio: V1 = (1 l) + (0.5 l) + (0.5 l), V2 = (0.5 l) + (0.5 l) + (1 l), V3 = (0.5 l) + (1 l) + (0.5 l), V4 = (0.67 l) + (0.67 l) + (0.67 l). Each treatment was repeated 3 times. The parameters observed were plant height, stem diameter, shoot dry weight and root dry weight, as well as the root shoot ratio. The result showed that the comparison of the planting media composition for ultisol, blotong and husk charcoal, in treatment V3 = (0.5 l) + (1 l) + (0.5 l) had a significant effect on plant height of 201.30 cm with an increase of 29.795%, stem diameter 21.77 mm with an increase of 38.92%, shoot dry weight 44.73 g with an increase of 158.55%, root dry weight 5.29 mm with an increase of 153.11%, root crown ratio 8.47 with an increase of 51.52 %.
القيادة التبادلية وعلاقتها بالأداء الإبداعي للمشرفين الفنيين بالمديريات العامة للتربية في محافظة بغداد
Authors: Lec. Dr. Muhammad Mahmoud Saleh *  
Published: May 2024

هدف البحث للتعرف على القيادة التبادلية لمدراء أقسـام النشاط الرياضي والمدرسي وكذلك التعرف على الاداء الابداعي للمشرفيين الفنيين والعلاقة بينهم ، وتم استخدام المنهج الوصفي بالأسلوب المسحي والعلاقات الارتباطية، وتكون مجتمع البحث من المشرفيين الفنيين في أقسـام النشــاط الريـاضـــي و المـدرســي بالمديريات العامة لتربيات بغداد والبالغ عددهم ( 134 ) مشرفا فنيا قسمت الى العينة الاستطلاعية والبناء والتطبيق وتم استخدام الاسس العلمية الخاصة ببناء المقاييس وكذلك استخراج الاسس العلمية ( الصدق والثبات ) ، واستنتج الباحث تمتع مدراء أقسـام النشــاط الريـاضـــي و المـدرســي بأسلوب القيادة التبادلية مما ساعد على الاداء الابداعي للمشرفيين الفنيين ، وأوصى الاهتمام بأسلوب القيادة التبادلية والتشجيع على استخدامه لتحقيق الاهداف التنظيمية للمؤسسات الرياضية .
Fluoride Varnish Intervention for Caries Prevention in Resource-Limited African Settings- A review
Authors: Osadolor Obehi O , Osadolor Aisosa J 
Published: May 2024

Background: Fluoride may not be available to some children in African countries due to the non-use of fluoride containing toothpaste, parental perception and awareness of the benefits of fluoride in caries prevention and non-availability of fluoride in community and school water. Fluoride may also not be affordable for children of low socio-economic status in remote areas, slums areas and rural areas. Topical and systemic sources of fluoride, like fluoride drops, fluoride gel,fluoride solution, fluoride mouthrinses, fluoride tablets, and fluoride lozenges, may not be available in resource-poor countries.
Method: An electronic literature search in Google Scholar, African journals online, Science direct and Google was done in August , 2023 using the Population, Concept and Context framework. Search terms and keywords were combined by Boolean operators. Two independent investigators screened titles, abstracts and accessible full texts of publications on fluoride varnish use among African children.
Results: Full text was screened using inclusion criteria. Three articles were included as they were assessed to meet the aim of the review. They were hospital based and school-based studies with comparative, prospective, interventional, and randomized clinical trial and cluster-randomized controlled community trials, respectively
Conclusion: Fluoride varnish can be an intervention for underserved children with white spot carious lesion in remote areas, slums areas and rural areas, and for non-cavitated carious lesions in resource poor settings. It is simple to use with simple armamentarium, More studies from diverse ethnic population in African countries will fill the gaps in knowledge.
Update Dent. Coll. j: 2024; 14(1):28-30
Factors Related to The Implementation of Handover in Hospital Inpatient Rooms
Authors: Kartini Kartini 
Published: May 2024

Handover is an oral communication of information about patients carried out by nurses at the change of shift. Inaccurate information in carrying out acceptance considerations can have a serious impact on patients. The aim of this literature review is to determine the factors associated with patient handover in hospital inpatient rooms. A literature search was carried out based on articles published between 2018-2023 according to the inclusion and exclusion criteria that had been determined using 1 data base, namely GoogleSchool. This literature search uses the PRISMA guideline in carrying out the screening process. From the search results, 2,420 articles were obtained. After carrying out the screening process, there were 3 articles that met the criteria and will be analyzed. Based on a study of 3 articles, it was found that the factors related to the implementation of patient handover in inpatient rooms in hospitals are: supervision, knowledge, peer support, communication, and organizational culture. Factors related to the implementation of handover patient consist of interna and external factors. It is hoped that hospitals will establish policies related to the management of handover patient in the form of standards and handover patient procedures that are applied in all hospital inpatient rooms, socialization and need supervision toward handover patient. As well as increasing nurses' knowledge through training. Keywords: factors, consideration, inpatient, hospital, nurse
The effects of high shear rates on the average hydrodynamic diameter measured in biomimetic HIV Gag virus-like particle dispersions
Authors: Wolf Tobias , Calisan Kerim Kadir , Stitz Jörn , Barbe Stéphan 
Published: May 2024

HIV Gag virus-like particles (HIV Gag VLPs) are promising HIV vaccine candidates. In the literature, they are often described as shear-sensitive particles, and authors usually recommend the operation of tangential flow filtration (TFF) gently at shear rates below 4,000 s−1 to 6,000 s−1. This in turn poses a severe limitation to the performance of TFF-mediated concentration of VLPs, which would be substantially enhanced by working at higher shear rates. To our knowledge, studies examining the shear sensitivity of HIV Gag VLPs and providing detailed information and evidence for the fragility of these particles have not been conducted yet. Thus, we investigated the effect of high shear rates on the colloidal stability of mosaic VLPs (Mos-VLPs) as relevant examples for HIV Gag VLPs. For this purpose, Mos-VLPs were exposed to different shear rates ranging from 3,395 s−1 to 22, 365 s−1 for 2 h. The average hydrodynamic diameter (AHD) and the polydispersity index (PDI) of the associated particle size distribution were used as stability indicators and measured after the treatment and during storage through dynamic light scattering. At high shear rates, we observed an increase in both AHD and PDI during the storage of HIV Mos1.Gag VLPs (bVLP—without envelope proteins) and Mos1.Gag + Mos2S.Env VLPs (eVLP—with envelope proteins). eVLPs exhibited higher colloidal stability than bVLPs, and we discuss the potential stabilizing role of envelope proteins. We finally demonstrated that the dispersion medium also has a considerable impact on the stability of Mos-VLPs.
Computational analysis of cancer cell adhesion in curved vessels affected by wall shear stress for prediction of metastatic spreading
Authors: Rahmati Nahid , Maftoon Nima 
Published: May 2024

Introduction: The dynamics of circulating tumor cells (CTCs) within blood vessels play a pivotal role in predicting metastatic spreading of cancer within the body. However, the limited understanding and method to quantitatively investigate the influence of vascular architecture on CTC dynamics hinders our ability to predict metastatic process effectively. To address this limitation, the present study was conducted to investigate the influence of blood vessel tortuosity on the behaviour of CTCs, focusing specifically on establishing methods and examining the role of shear stress in CTC-vessel wall interactions and its subsequent impact on metastasis.Methods: We computationally simulated CTC behaviour under various shear stress conditions induced by vessel tortuosity. Our computational model, based on the lattice Boltzmann method (LBM) and a coarse-grained spectrin-link membrane model, efficiently simulates blood plasma dynamics and CTC deformability. The model incorporates fluid-structure interactions and receptor-ligand interactions crucial for CTC adhesion using the immersed boundary method (IBM).Results: Our findings reveal that uniform shear stress in straight vessels leads to predictable CTC-vessel interactions, whereas in curved vessels, asymmetrical flow patterns and altered shear stress create distinct adhesion dynamics, potentially influencing CTC extravasation. Quantitative analysis shows a 25% decrease in the wall shear stress in low-shear regions and a 58.5% increase in the high-shear region. We observed high-shear regions in curved vessels to be potential sites for increased CTC adhesion and extravasation, facilitated by elevated endothelial expression of adhesion molecules. This phenomenon correlates with the increased number of adhesion bonds, which rises to approximately 40 in high-shear regions, compared to around 12 for straight vessels and approximately 5–6 in low-shear regions. The findings also indicate an optimal cellular stiffness necessary for successful CTC extravasation in curved vessels.Discussion: By the quantitative assessment of the risk of CTC extravasation as a function of vessel tortuosity, our study offers a novel tool for the prediction of metastasis risk to support the development of personalized therapeutic interventions based on individual vascular characteristics and tumor cell properties.
Analysis of spatial and temporal variations of NDVI and its driving factors in the corridor of Lan-Xin railway
Authors: Chen Xingshan , Yan Qingwu , Yi Minghao , Ma Xiaosong , Li Guie , Wu Zihao , Pan Qinke , Qiu Yong 
Published: May 2024

Introduction: Vegetation is the main factor of ecological stability, but the construction of largescale corridor projects will bring some damage to vegetation.Methods: Based on the NDVI, temperature and precipitation data of the growing season from 1990–2021 (June to September), this paper uses the maximum synthesis method, trend analysis method, correlation analysis method and coefficient of variation method to study the spatial-temporal changes and driving factors of NDVI in the past 32 years, taking the 30 km belt buffer zone along the Lan-Xin Railway as the research area. The influence range of railway construction on NDVI in different climatic conditions is analyzed.Results: The results showed that: (1) From 1990–2021, the average annual temperature of the growing season in the study area showed an increasing trend, the average annual precipitation showed a decreasing trend, and the average annual NDVI showed an increasing trend; NDVI was positively correlated with temperature in 54.04%, and positively correlated with precipitation in 62.88%. Precipitation had a greater effect on NDVI than temperature. (2) Under the same climatic conditions, the NDVI variability coefficient in the study area fluctuates significantly within 3,000–21,000 m along the railway line, stabilizing beyond 21,000 m; the impact range of railway construction on NDVI gradually increases with increasing precipitation within the same temperature range, and increases gradually with rising temperatures within the same precipitation range. (3) During the growing season (June to September) in the study area, when the temperature is below 25°C, NDVI increases initially with increasing precipitation before decreasing, showing an overall upward trend; when the temperature is above 25°C, NDVI initially increases with increasing precipitation before decreasing. High temperature and high precipitation will inhibit vegetation growth and reduce NDVI. The NDVI of the core area before the railway construction is larger than that of the background area, while the NDVI of the core area after the railway construction is smaller than that of the background area.Discussion: In short, the construction of Lan-Xin Railway has a certain influence on NDVI along the line. When studying the impact of large-scale engineering projects on vegetation in the future, higher resolution imagery can be used along with the incorporation of human activities' influence. These factors will enable more accurate and comprehensive research.