bluuebunny/crossref_metadata_2025_split huggingface dataset:
THE INFLUENCE OF THE STEAM APPROACH ON THE PjBL MODEL ON STUDENTS' COLLOID LEARNING OUTCOMES
Authors: Sugiarti Sugiarti , Sulastri Taty , Fatimah Syarifah 
Published: June 2024

Abstract
Chemistry learning at SMA Negeri 7 Takalar is still dominated by teacher-centered learning. Students still have difficulty understanding chemistry lessons such as colloids, the material of which is conceptual in nature and requires contextual application of concepts. Therefore, it is very important to carry out learning that involves students actively applying colloid theory and concepts through the STEAM approach in the Project Based Learning learning model. This research is quasi-experimental research that aims to determine the colloid learning outcomes of students after learning with the STEAM approach in the PjBL Model for Class XI MIPA SMA Negeri 7 Takalar. Posttest only control group design research design. The population is all class XI students consisting of three classes. The research samples for Class XI MIPA 2 and Class XI MIPA 3 as experimental and control groups were randomly selected. The results of the descriptive analysis show that the average completeness of learning outcomes for the experimental class is 72.73% higher than the control class, 48.48%. The results of inferential statistical tests show that student learning outcomes using the t-test at a value of α = 0.05 obtained a value of tcount > ttable (2.83 > 1.99). This means that H0 is rejected and H1 is accepted, thus it can be concluded that the STEAM approach in the Project Based Learning Model has a significant influence on the colloid learning outcomes of class XI MIPA students at SMA Negeri 7 Takalar.

Keywords: STEAM, Project Based Learning, Learning Outcomes, Colloid
PENGEMBANGAN INSTRUMEN PENILAIAN KOGNITIF BERBASIS HIGHER ORDER THINKING SKILLS (HOTS) BERBANTU APLIKASI QUIZIZZ PADA MATERI IKATAN KIMIA DAN GAYA ANTARMOLEKUL
Authors: Azizah Iva Nur , Silfianah Ifah 
Published: June 2024

Siswa pada jenjang SMA seharusnya tidak hanya memiliki tingkat LOTS, akan tetapi juga memiliki keterampilan HOTS. Berdasarkan PISA tahun 2015, yang dilaporkan oleh OECD Indonesia berada pada peringkat 69 dari 76 negara. Hal ini menunjukkan bahwa rata-rata siswa di Indonesia masih memiliki keterampilan berpikir tingkat tinggi yang rendah. Salah satu faktor yang mempengaruhi keterampilan berpikir masih rendah adalah kurang terlatihnya siswa dalam menyelesaikan tes yang menuntut menganalisis, mengevaluasi, dan mencipta. Tujuan dari penelitian ini adalah mengembangkan instrumen dan menganalisis kemampuan berpikir tingkat tinggi siswa. Peneitian ini menggunakan model 4D. Namun, pada penelitian ini hanya sampai pada tahap develop. Penelitian ini menggunakan metode wawancara, angket, dan soal. Instrumen diuji cobakan sebanyak 2 kali, yaitu Uji coba terbatas diujikan kepada 27 siswa dan uji coba skala sedang diujikan kepada 69 siswa. Hasil penelitian menunjukkan bahwa: (1) instrumen yang dikembangkan memiliki keterbacaan soal sebesar 75,75%, (2) validitas ahli materi sebesar 87,80%, validitas ahli media sebesar 85,45% dan reliabilitas sebesar 0, 647, 3) tingkat kesukaran butir soal sebesar 0,30, dan daya beda sebesar 0,11, dan 4) frekuensi pencapaian kemampuan berpikir tingkat tinggi dengan persentase 1,45% dikategorikan baik, 28,98% dikategorikan cukup, 46,38% dikategorikan kurang, dan 23,19% dikategorikan sangat kurang. Dari hasil tes dapat diketahui bahwa sebagian besar siswa masih kurang mampu menyelesaikan soal berbasis HOTS sehingga dapat dikatakan bahwa kemampuan berpikir tingkat tinggi siswa masih dalam kategori kurang.
Kata Kunci: Asesment kognitif, HOTS, Quizizz, dan Ikatan Kimia.
Methodology for quantifying the uncertainty associated with predicting the production behaviour of a highly heterogeneous reservoir subject to water injection
Authors: Mantilla Jorge , Idrobo Eduardo A. 
Published: June 2024

This paper focuses on an integrated methodology for the prediction of the production behavior of a highly heterogeneous oilfield subject to water injection, quantifying the related uncertainty in both, the stratigraphical reference framework and the petrophysical model. The proposed methodology involves the evaluation of the related uncertainty through hierarchical classification and the selection of the geostatistically generated models corresponding to the P10, P50 and P90 quantiles, based on a variable indicating the behavior of the parameter to be evaluated. In the evaluation of the uncertainty related to the stratigraphical reference framework, the percentage of interconnected oilfield was used as a hierarchy definition parameter. The sweeping volumetric efficiency at a certain time, as obtained from the flight time of the streamline simulation, was used as the hierarchical classification variable for petrophysical models. This paper shows the application of the proposed methodology to a real case. The example is carried out within a pilot project at the La Cira Field, which includes three productive wells and nine injecting wells, making up three injection–production patterns. Results show the potential of the proposed technique in the case of an oilfield like this one, in which a complex distribution of flow channels has been conformed due to fluvial deposits, thus discouraging supervision and prediction of the oilfield’s behavior.
Implementation of an alternative skimming system and improvement of the final effluent quality in API separators.
Authors: ORTIZ L. E. , RESTREPO R. , ARENAS C. A. , BOHADA O. 
Published: June 2024

This article present and analyzes a series of pilot plant test results of a system far oplimizing !he efficiency of API type separators in the recovery of crude oils and light hydrocarbons (fuel oíl) from wastewater. The system consists of two phases: the first being a new skimming device, as an alternative lo the traditional slotted pipe skimmer, that employs an oleofilic bond. In the second phase the quality of the separator effluent is improved by using natural adsorbent filters based on vegetal fibers. Four types of fibers were chosen: fique, water hyacinth, sáwdust, and pineapple leave fiber. The skimmer is operated by means of a neumatic engine that spins a series of rollers which serve as support far an oleofilic bond. As the bond rotates, it removes by adherence the hydrocarbon floating in the water. During the experimental phase the variables were: type of bond material, velocity of bond rotation and angle of bond inclination with regard to that of the water surface. According to the results of the different tests the experimental system is effective in removing floating hydrocarbons, in the form of crude oil or as a refined product, from an aqueous media. The system can easily be adapted to oily wastewater treatment units, existing or projected.
Microfossils of the Guadalupe group and the Guaduas formation (campaniano-maastrichtlano) in the Tausa section, Cundinamarca, Colombia.
Authors: MARTÍNEZ J. l. 
Published: June 2024

A rich assemblage of foraminifers and ostracods recovered from the Guadalupe group and the base of the Guaduas formation in the Tausa section are described and illustrated. The Guadalupe group is characterized by a low microfounal diversity dominated by the buliminids Siphogenerinoides ewaldi and Siphogenerinoides bramlettei. lncrements in microfoaunal diversity appear to correspond to the middle part of Transgressive System Tracts. Siphogenerínoides bramlettei (lote Maastrichtion in age) supersedes Síphogenerinoides ewaldi (lote Camponion in age); the occurrence of the two taxa corresponds to the first sequence boundary in the Ploeners formation of the Guadalupe group. The first occurrence of S. bramlettei appears to be "isochronous" in northern South America. The base of the Guaduas formation is characterized by a high diversity of calcoreous benthonic foraminifera (rotaliids). Microfossils from the Guadalupe group and Guaduas formation were affected by two taphonomic processes: (1) kaolinite infilling previous to dissolution of tests during the mesodiogenetic stage, and (2) pyrite infilling and pyritization (in sulfidic microenvironments) previous to dissolution of tests during the eodiogenefic stage.
DISTRIBUTION OF CHLOROPHYL-A AND SEA SURFACE TEMPERATURE AND ITS INFLUENCE ON THE CATCH OF YELLOWFIN TUNA (Thunnus albacares) ON SERAYA BESAR ISLAND, EAST NUSA TENGGARA
Authors: Dimu Rafis Trisandi , Aida Gilang Rusrita , Kusyairi Achmad 
Published: June 2024

Penentuan daerah penangkapan ikan (DPI) nelayan di Pulau Seraya Besar masih menggunakan cara tradisional atau dengan pengalaman saja, sehingga perlu adanya sentuhan teknologi dan pengetahuan untuk memprediksi DPI melalui distribusi klorofil -a dan distribusi suhu permukaan laut (SPL) sehingga kegiatan penangkapannya lebih efektif dan efektif dan efisien . Berangkat dari gagasan tersebut penulis ingin mengkaji terkait Distribusi Klorofil-A dan Suhu Permukaan Laut Serta Pengaruhnya Terhadap Hasil Tangkapan Tuna Sirip Kuning (Thunnus Albacares) di Pulau Seraya Besar, Nusa Tenggara Timur. Penelitian ini menggunakan metode deskriptif. Berdasarkan penelitian ini diperoleh hasil rata-rata distribusi klorofil-a dari bulan Januari-November 2023 di DPI nelayan Pulau Seraya Besar ialah 0,44 mg/m3. Rata-rata distribusi suhu permukaan laut pada bulan Januari-November 2023 di DPI nelayan Pulau Seraya Besar ialah 27,55 °C. Regresi linear dengan persamaan Y = 2618,120 + 1715,958 X1 - 99,329 X2 dengan nilai adjusted R2 sebesar 79 %. Hasil Uji T menunjukkan variabel distribusi klorofil-a berpengaruh nyata secara parsial. Sementara, varibel distribusi suhu permukaan laut tidak berpengaruh nyata secara parsial terhadap hasil tangkapan Tuna Sirip Kuning di Pulau Seraya Besar, Nusa Tenggara Timur. Hasil Uji F menunjukkan bahwa variabel distribusi klorofil-a dan suhu permukaan laut berpengaruh nyata secara simultan terhadap hasil tangkapan Tuna Sirip Kuning di Pulau Seraya Besar, Nusa Tenggara Timur.
Kesehatan Terumbu Karang di Perairan Pulau Batanglampe Kabupaten Sinjai
Authors: Tahira Irfani , Zulkifli Andi Tenriawaruwaty A. R. , Alamsyah Ridha 
Published: June 2024

Terumbu karang saat ini mengalami tekanan yang cukup tinggi. Kerusakan terjadi dimana-mana menyebabkan fungsi ekologi dan ekonomi terganggu. Dampak kerusakan akan mempengaruhi tingkat kesehatan dan mengancam keberlanjutan sumberdaya terumbu karang dan ekosistemnya. Penelitian ini bertujuan mengetahui tingkat kesehatan terumbu karang dengan menggunakan indikator tutupan karang hidup, tutupan alga, tutupan pasir, indeks mortalitas serta potensi pemulihan. Metode yang digunakan adalah foto transek menggunakan perangkat lunak CPCe (Coral Point Count with excel extension). Variabel yang digunakan dalam menghitung nilai indeks kesehatan terumbu karang menggunakan data komponen bentik. Tingkat kesehatan terumbu karang diketahui dengan melihat tutupan karang hidup, tutupan alga, tutupan pasir dan indeks mortalitas dikombinasikan dengan tingkat resiliensi. Hasil penelitian menunjukkan rata-rata tutupan karang hidup 19,19% (buruk). Tutupan alga rata-rata 29,60% (baik), tutupan pasir rata-rata 39,74% (baik) dan indeks mortalitas rata-rata 0,63% (tinggi). Potensi pemulihan ekosistem terumbu karang di Pulau Batanglampe termasuk dalam kategori sedang. Peran serta masyarakat bersama Pemerintah diperlukan dalam menjaga dan melestarikan keberlanjutan ekosistem terumbu karang di Kabupaten Sinjai.
Objawienie, prawda, nauka. Spór o relacje między filozofią a teologią w czeskiej myśli międzywojnia
Authors: Bęben Dariusz 
Published: June 2024

Celem artykułu jest przedstawienie sporu dotyczącego relacji filozofii i teologii w czeskiej myśli międzywojennej (Kozák, Souček, Rádl, Patočka). Omawiam różne sposoby uzasadniania teologii i Objawienia oraz ich związki z filozofią. W tym sporze z jednej strony teolodzy starają się uzasadnić wyjątkowość teologii, a także wykazać jej naukowy charakter. Z drugiej strony, filozofowie pokazują, że teologia oparta na Objawieniu nie może być częścią wiedzy. Historia sporu pokazała, że teologia musi zachować dystans do filozofii, jeśli nie chce wyrzec się swojej istoty, swojej securitatis, która nadeje sens jej istnieniu, co nie znaczy, że jest niewrażliwa na codzienne problemy człowieka.
Pierwszy szczebel
Authors: Tołstoj Lew Nikołajewicz , Ojcewicz Grzegorz 
Published: June 2024

Leo Tolstoy’s essay, The First Step (Первая ступень) written in 1891, is a multi-dimensional text whose purpose was not only to try to convert people to the righteous path of living through consistently followed restraint and self-control over one’s desires, but its author also encouraged people – in a rather convincing way – to become vegetarians. Tolstoy claimed that meat-free diet closely relates to healthy nutrition and consi­derably limits or even eliminates the suffering of animals being slaughtered on a mass scale for consumption in pain and death factories, as he referred to mechanised slaughterhouses. Using naturalistic images, the writer describes horrifying scenes he witnessed at the abattoir in Tula. The text is filled with drastic imagery, sounds and foul odours wafting from the slaughterhouse and the vision of inhumane practices of butchers, young and old, devoid of any sympathy towards the animals being killed. In hindsight it must be regretfully noted that Tolstoy’s essay has not changed people’s dietary habits and vegetaria­nism has not managed to supplant the traditional, mostly meat-based menu.
Practical Aspects of Sputtering and Its Role in Industrial Plasma Nitriding
Authors: Roliński Edward 
Published: June 2024

Abstract
Sputtering is a nonthermal vaporization process in which atoms are ejected from the surface of a solid by momentum transfer from energetic particles of atomic or molecular size. Ionized gases in plasma nitriding chambers often possess enough energy to sputter atoms from workload, fixturing, and racking surfaces that are then redeposited to the benefit or detriment of the nitriding process. This article explains how and why sputtering occurs during plasma nitriding and how to recognize and control its effects. It reviews the factors that influence the intensity of sputtering and its effects, whether positive or negative, on treated parts. It also provides recommendations for improving outcomes when nitriding titanium alloys, ferrous metals, particularly stainless steels, and components with complex geometries.
Causal Association Between Type 2 Diabetes Mellitus and Alzheimer’s Disease: A Two-Sample Mendelian Randomization Study
Authors: Li Cong , Qian Haifeng , Feng Lina , Li Mingquan 
Published: June 2024

Background: There is now increasing evidence that type 2 diabetes mellitus (T2DM) is associated with Alzheimer’s disease (AD). However, it is unclear whether the two are causally related. Objective: To reveal the causal association between T2DM and AD, we performed a bidirectional Mendelian randomization (MR) analysis. Methods: Genetic instrumental variables were systematically screened, and inverse-variance weighting, MR—Egger regression, weighted median, simple mode, and weighted mode were applied to assess the pathogenic associations between the two diseases, and sensitivity analyses were used to further validate the robustness of the results. Results: The results of forward MR analysis with T2DM as the exposure were [OR = 0.998, 95% CI (0.975∼1.021), p = 0.857], and the results of reverse MR analysis with AD as the exposure were [OR = 0.966, 95% CI (0.934∼0.999), p = 0.043]. The results showed no significant association between T2DM and AD at the gene level ( p < 0.025). Sensitivity analyses were consistent with the results of the main analysis, confirming the robustness of the study. Conclusions: T2DM and AD may not be genetically causally associated.
Effects of different intensity aerobic exercise on intestinal flora and gastrointestinal hormones in type 2 diabetic rats
Authors: Wang Xiaomei , Jing Huifeng , Guo Yuyue 
Published: June 2024

To examine the impact and mechanisms of the aerobics exercise on gut flora and gastrointestinal hormones in type 2 diabetes rats. Methods Adult male SD rats aged 8 weeks were divided into 5 groups at random (n= 10): a peaceful comparison group (N), a diabetic comparison group (D), a diabetic low-intensity exercise group (LD), a diabetic middle-intensity exercise group (MD), and a diabetes highintensity exercise group. (HD). The rat groups LD, MD, and HD performed aerobic exercise five times per week for a total of 6 weeks and compared general condition, blood glucose, blood lipids, insulin, leptin, gastrin (GAS) and motilin ( MOT), gastrointestinal motility, and intestinal flora. Results The levels of insulin, leptin, total cholesterol, triglycerides, E. coli, LDL-cholesterol, LDL-cholesterol, insulin, and gastric residual rate were significantly different from group N. Conclusion: Type 2 diabetic rats have gut flora imbalance and gastrointestinal hormone changes. Aerobic exercise with different intensity can alleviate gastrointestinal hormone imbalance and intestinal flora imbalance in type 2 diabetes rats, and the impact of moderate intensity exercise is the strongest.
General Knowledge or The Use of Menstrual Cycle Tracking App among Medical Students at Sriwijaya University
Authors: Alysha Zafira , Oktharina Eka Handayani , Oswari Liniyanti D. , Putra Hadrians Kesuma , Inggarsih Rara 
Published: June 2024

Introduction. As technology and science develop, the menstrual cycle can be known practically by using menstrual cycle tracking applications on gadgets. The many features in the application are an added value, so many women choose to use menstrual cycle tracking applications compared to other platforms. This research aims to identify the general level of knowledge or use of the menstrual cycle tracking app among medical students at the Faculty of Medicine Sriwijaya University. Methods. This type of research is descriptive using a survey. The sample in this study was female medical students at the Faculty of Medicine Sriwijaya University class 2018—2023 who fulfilled the inclusion and exclusion criteria. Sampling was collected by total sampling. Results. In this study, 868 respondents participated, it was found that 467 (53.8%) had the highest level of knowledge, namely with “good” category. 685 (78.9%) controlled their menstrual cycles. 450 (65%) used a menstrual cycle tracking application with the most duration of use being ≥ 1 year 311 (49.8%). The most widely used application name is Flo My Health & Period Tracker 308 (66.5%). 294 (63.9%) chose the quite satisfied category for the level of satisfaction with using the application. In addition, 396 (86.1%) chose the sufficient category for the level of accuracy in using the application. Conclusion. Female medical education students at the Faculty of Medicine, Sriwijaya University have a general level of knowledge with the dominance of the category “good” and a usage rate of 467 (53.8%) in the menstrual cycle monitoring application.
The Influence of Principal Leadership and Teacher Motivation to Improve Student Learning Achievement in Public Elementary Schools
Authors: Hartini  , Musdiani  , Rahmatullah  
Published: June 2024

This research aims to analyze the influence of principal leadership and teacher motivation to improve student learning achievement in State Elementary Schools in Batee District. This research uses a quantitative approach, this type of research uses correlation research methods. This research used 125 samples by dividing them into each elementary school in Batee District. Data collection in this research used questionnaires and documentation. Data analysis in this research used the SPSS version 26 program. In this research, validity tests, reliability tests, classical assumption tests, multiple linear regression tests, hypothesis tests and coefficient of determination tests (R2) were used. The research results prove that the principal's leadership partially has a significant effect on student learning achievement. Teacher work motivation partially has a significant effect on student learning achievement. The principal's leadership and teacher work motivation simultaneously have a significant effect on student learning achievement.
Sharkless Makeup > Sharkless Oceans
Authors: Nicholson Sarah 
Published: June 2024

<p>Since 1970, the global abundance of sharks has declined by 71% owing to an 18-fold increase in fishing pressure. The number of sharks caught as bycatch now exceeds the number of targeted catches, though industrial uses of bycatch are unknown. Trade routes for shark fins and meat are relatively well documented, but little is known about shark liver oil ‚Äî the richest natural source for squalene ‚Äî principally used in cosmetics. Endpoint market monitoring is crucial for improving our understanding of the shark trade. Stable isotope analysis of ·∫ü C using gas chromatography - combustion - isotope ratio mass spectrometry (GC-C-IRMS) can successfully determine squalene's source in finished cosmetic samples of mixed squalene origin. Results show that 26% of cosmetics contain shark-derived squalane, including samples carrying vegan or plant-based squalane claims. This research points to the urgent need for raw materials testing and the acquisition of species-specific data to eliminate this commercial threat to sharks. </p>
International Journal of Role-playing 15 -- Full Issue
Authors: Bowman Sarah Lynne , White William J. , Torner Evan , Hugaas Kjell Hedgard , Walsh Orla , Linehan Conor , Sottile Emry , Lehto Kerttu , Cullinan Maryanne , Hartyándi Mátyás , Van Bilsen Gijs , Riel Jeremy , Monahan Rob , Bartenstein Lennart 
Published: June 2024

Sarah Lynne Bowman, William J. White, Evan Torner -- "Editorial: The Increasing Specificity and Maturity of Role-playing Game Studies"
Kjell Hedgard Hugaas -- “Bleed and Identity: A Conceptual Model of Bleed and How Bleed-out from Role-playing Games Can Affect a Player’s Sense of Self”
Orla Walsh and Conor Linehan -- “Roll for Insight: Understanding How the Experience of Playing Dungeons & Dragons Impacts the Mental Health of a Frequent Player”
Emry Sottile -- “‘It Might Have a Little to Do with Wish Fulfillment’: The Life-Giving Force of Queer Performance in TTRPG Spaces”
Kerttu Lehto -- “Nordic Larp as a Method in Mental Health Care and Substance Abuse Work: Case SÄRÖT”
Lennart Bartenstein -- “Live Action Role-playing (Larp) in Cognitive Behavioral Psychotherapy: A Case Study”
Maryanne Cullinan -- “Surveying the Perspectives of Middle and High School Educators Who Use Role-playing Games as Pedagogy”
Mátyás Hartyándi and Gijs van Bilsen -- “Playing With Leadership: A Multiple-Case Study of Leadership Development Larps”
Jeremy Riel and Rob Monahan -- “Learning from Ludemes: An Inventory of Common Player Actions within Tabletop Role-Playing Games (TTRPGs) to Inform Principled Design of Game-Based Learning Experiences”
Pengaruh Model Pembelajaran Mind Mapping Berbantuan Powerpoint Terhadap Hasil Belajar Pada Materi Lingkaran Kelas VIII
Authors: Wahida Shofia , Nanang Nabhar Fakhri Auliya  
Published: June 2024

Penelitian ini bertujuan untuk membuktikan ada atau tidaknya Pengaruh Model Pembelajaran Kooperatif Tipe Mind Mapping Berbantu Powerpoint Terhadap Hasil Belajar Matematika Siswa Kelas VIII Pada Materi Konsep Lingkaran. Penelitian ini menggunakan pendekatan kuantitatif dengan jenis penelitian eksperimen. Sedangkan desain yang diterapkan yaitu true experimental design dengan bentuk possttest only control design. Metode pengumpulan data pada penelitian ini menggunakan tes soal pilihan ganda sebanyak 10 butir soal. Pengumpulan data yang diperoleh, hasil perhitungan didapat nilai rata-rata kelas eksperimen 69, sedangkan nilai rata-rata kelas kontrol 51. Berdasarkan hasil uji hipotesis menggunakan bantuan SPSS, didapat hasil nilai = 1,670. Maka, ditolak atau diterima. Penelitian ini menghasilkan bahwa hasil belajar matematika siswa yang dikenai model pembelajaran mind mapping pada kelas eksperimen lebih baik dari pada hasil belajar matematika siswa pada kelas kontrol yang dikenai model pembelajaran langsung.