bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pemecahan Masalah Bangun Ruang Bernuansa Etnomatematika pada Siswa SMP
Authors: Sari Novita , Muttaqien Anwar 
Published: November 2022

Tujuan penelitian ini untuk mengetahui kemampuan pemecahan masalah matematis siswa pada materi bangun ruang bernuansa etnomatematika. Metode penelitian yang digunakan ialah jenis penelitian kualitatif deskriptif yang mendeskripsikan kemampuan pemecahan masalah matematis siswa pada materi bangun ruang bernuansa etnomatematika. Subjek penelitian adalah siswa kelas VIII SMPN 2 Sampit. Teknik pengumpulan data menggunakan google form dan video call WhatsApp. Instrumen penelitian berupa tes dan wawancara. Adapun analisis data dalam penelitian ini terdiri dari reduksi data, penyajian data, dan penarikan kesimpulan data. Hasil penelitian menunjukkan bahwa terdapat empat tahapan pemecahan masalah matematis pada bangun ruang bernuansa etnomatematika yaitu: (1) kemampuan memahami masalah yakni siswa mengidentifikasi unsur-unsur yang diketahui dan ditanyakan soal, menganalisa soal dengan mensketsakan gambar Balai Patahu menjadi bangun ruang balok; (2) kemampuan merencanakan pemecahan masalah, yakni siswa merancang rumus dan gambar sketsa sesuai dengan pertanyaan soal dan ilustrasi gambar Balai Patahu; (3) kemampuan melaksanakan rencana pemecahan masalah, yakni siswa menerapkan strategi pemecahan masalah sesuai dengan rencana yang telah dirancang pada tahap merencanakan pemecahan masalah untuk memperoleh hasil jawaban; dan (4) kemampuan memeriksa kembali, yakni siswa memeriksa hasil jawaban dan mampu membuat kesimpulan yang benar dari hasil jawaban. Dalam pembelajaran guru hendaknya memberikan pembelajaran yang bernuansa budaya, agar siswa dapat memecahkan masalah matematis yang berhubungan dengan budaya di kehidupan sehari-hari.
Examining graphic drawing skills for a socioscientific problem situation
Authors: Yurtyapan Mehmet İhsan , Kaleli Yılmaz Gül 
Published: November 2022

The aim of the study is to examine the graphing skills of prospective elementary mathematics teachers for a socioscientific problem situation related to Covid-19. The research is a qualitative research and was carried out with the case study method.The participants consisted of 43 prospective elementary mathematics teachers studying in the third year of a state university in Turkey. Typical case sampling, one of the purposive sampling methods, was used to determine the participants. In the research, an open-ended question that requires drawing three graphs with vital aspects based on a socio-scientific situation-based scenario was used as a data collection tool. Data analysis consists of two stages. First, the graphs drawn by the prospective elementary mathematics teachers were scored with the descriptive analysis method.Then, the errors in the graphics drawn using the content analysis method were grouped and determined. When the data were analyzed, it was observed that a significant portion of prospective elementary mathematics teachers had deficiencies in their ability to draw graphs about the problem situation in the context of Covid-19. For this reason, when teaching graphics, drawing activities that require more context-based qualitative understanding or technology-assisted teaching applications can be used.
Étude sur les inquiétudes parentales et ses facteurs associés dans le cadre de la rémission d’un cancer pédiatrique
Authors: Vander Haegen M. , Etienne A.-M. 
Published: November 2022

Introduction : Les études sur les inquiétudes et la détresse des parents d’un enfant en rémission de cancer sont moins développées dans la littérature. L’objectif de l’étude est d’examiner l’intensité des inquiétudes ainsi que ses associations avec le facteur d’intolérance à l’incertitude (II) et les symptômes anxiodépressifs.
Méthodes : Soixante et un parents d’enfants en rémission de cancer (de quatre à six ans de rémission) ont participé à l’étude. Les parents ont rempli plusieurs questionnaires évaluant les inquiétudes, l’II et les symptômes anxiodépressifs.
Résultats : Les parents présentent majoritairement des symptômes anxieux et des inquiétudes intenses relatives à l’évolution de la santé de leur enfant en rémission de cancer. Le facteur d’II semble contribuer à expliquer l’intensité des inquiétudes parentales.
Conclusion : Des recommandations ont été publiées concernant la prise en charge des parents d’un enfant en rémission de cancer, mais des études longitudinales centrées sur le parent sont encore nécessaires afin d’améliorer les initiatives de prévention et de prise en charge de ces familles.
EDUKASI DAN EVALUASI TINGKAT PENGETAHUAN WARGA SEKITAR MASJID DI DAERAH PEKALONGAN BARAT MENGENAI PENGGUNAAN HANDSANITIZER GUNA PENCEGAHAN COVID-19
Authors: Khasanah Kharismatul , Anindhita Metha Anung , Desiani Ekanita , Rusmalina Siska 
Published: November 2022

<p>Corona virus or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a virus that attacks the respiratory system. The disease due to this infection is called COVID-19. Corona virus can cause respiratory system disorders, acute pneumonia, and death. Prevention of coronavirus can be started from ourself. One of the things that can we do is to know the current information about the Covid-19 pandemic on the WHO website and through public health authorities. WHO advises all of us to avoid novel Covid-19 virus infection by maintaining our health and protecting others.One of them is by doing hand washing using a handsanitizer. These handsanitizers are a new habit and need to be done consistently. In order to prevent the maximum transmission, we must use a handsanitizer appropriately. It is intended that the worship process at the mosque can continue and also to prevent the transmission of Covid-19. This method of community service is the manufacture and distribution of handsanitizer and education of the use of a good and correct handsanitizer to the residents around the mosque. The Community Service Activities Program carried out can provide benefits to the community in the knowledge of using Handsanitizer correctly in preventing the transmission of novelcorona virus (Covid-19).</p><p> </p><p><strong>Keyword</strong> : Covid-19, Handsanitizer, prevention</p>
Pengendalian Bahaya K3 Menggunakan Metode Hirarc di Bengkel Las Bintang Jaya Steel Sidosari, Krajan, Sukoharjo
Authors: Wisudawati Tri 
Published: November 2022

c. Peran sumber daya manusia merupakan modal dasar dalam penentuan tujuan tempat usaha. Tanpa peran sumber daya manusia, kegiatan dalam perusahaan tidak akan berjalan lancar. Setiap tempat usaha selalu memiliki risiko terjadinya kecelakaan. Kecelakaan akibat kerja merupakan kecelakaan yang terjadi dikarenakan oleh pekerjaan atau pada waktu melaksanakan pekerjaan. Ada dua faktor penyebab kecelakaan kerja, yaitu tindakan manusia yang tidak aman (unsafe condition) dan tindakan manusia yang tidak memenuhi keselamatan kerja (unsafe act). Banyak UMKM yang belum menerapkan K3 di tempat usahanya sehingga bisa mengakibatkan kecelakaan kerja dan membuat tujuan serta aktivitas pekerjaan tidak bisa berjalan dengan baik. Penerapan K3 sangatlah penting diterapkan di UMKM mengingat sumber daya manusia sangatlah penting dalam aktivitas pekerjaan. Dengan menerapkan manajemen K3, UMKM dapat meminimalisir kecelakaan kerja sehingga tujuan usaha dapat tercapai dengan baik.Penelitian ini membahas tentang pengendalian bahaya K3 menggunakan metode HIRARC untuk pegawai di UMKM Las. Peneltian menggunakan metode survey dan kuesioner yang diberikan kepada pegawai las dan pemilik usaha. Dari penelitian didapatkan aktivitas proses pengelasan memiliki tingkat risiko sebesar 16 dan 20 yang artinya tingkat risiko tinggi. Pengendalian risiko dengan cara menekan likelihood dan menekan severity Total tingkat risiko pada proses pemgelasan dari awal sampai akhir yaitu 37% Low Risk, 46% Moderate Risk, 17% High Risk. Pengendalian bahaya di lingkungan kerja bengkel las menggunakan metode HIRARC ini bisa diterapkan untuk bengkel las yang memiliki aktivitas yang sama mulai dari tahap persiapan, tahap proses, dan tahap penyelesaian sehingga dapat dijadikan referensi terkait pengendalian bahaya dan risiko
Rancangan Fasilitas Kerja Berdasarkan Data Antropometri Pada Proses Pembuatan Kue Bakpao Kelompok Sumberan Mentas Unggul
Authors: Lestariningsih Siti 
Published: November 2022

Kelompok “SUMBERAN MENTAS UNGGUL” merupakan kelompok masyarakat desa yang melakukan aktifitas membuat berbagai makanan ringan terutama jenis kue Bakpao yang menjadi andalan dalam usahanya kelompok tersebut. Dalam proses pembuatan kue Bakpao yang telah dilakukan saat ini posisi dari mesin mixer diletakan tidak di meja jadi posisinya di bawah. Hal ini akan mengakibatkan operator mesin tersebut mengalami kesulitan dalam pengoperasiannya dan cepat lelah karena dengan posisi duduk ataupun jongkok dilantai.Dalam penelitian ini bertujuan untuk merancang fasilitas kerja dengan menbuat meja dan kursi operator mesin tersebut dengan berdasarkan data Antropometri, agar dalam proses mixer dapat berjalan dengan baik dan operator akan nyaman saat melaksanakan pekerjaannya. Adapun metode penelitian yang digunakan adalah metode penelitian metode kuantitatif dan klualitatif atau gabungan yaitu dengan berdasarkan data antropometri dan dengan berdasarkan metode Nordic Body Map.Adapun hasil dari penelitian adalah dilakukannya perancang fasilitas kerja berupa pembuatan meja dan kursi operator pada proses mesin mixer dan diperoleh besarnya pengaruh perancangan fasilitas kerja terhadap tingkat ketidaknyamanan operator dalam bekerja yaitu sebanyak 75% merasakan nyaman, 17,8% merasakan nyaman serta 3,6% merasakan kurang nyaman dan tidak nyaman.
Klasifikasi Topik terhadap Judul Berita Kasus Covid-19 dengan Multilayer Perceptron
Authors: Salsabila Faradhiba , Helen Afrida , Yuliawati Susi 
Published: November 2022

Peran media massa berpengaruh dalam meningkatkan kesadaran masyarakat terhadap penyebaran Covid-19. Berdasarkan laporan Reuters Institute Digital News Report 2022, media daring cenderung dikonsumsi oleh masyarakat Indonesia sebagai sumber berita dengan persentase 88%. Hal tersebut menunjukkan media daring merupakan tempat penyebaran informasi yang penting. Penelitian ini bertujuan untuk mengklasifikasikan topik yang ada dalam berita terkait kasus Covid-19 dalam media massa Kompas dengan menggunakan multilayer perceptron. Berdasarkan hasil penelitian, berita kasus Covid-19 dapat dikategorikan menjadi empat label, yaitu kebijakan pemerintah, pemberitahuan informasi, internasional, dan masyarakat umum. Tingkat akurasi yang didapat dari pemodelan dengan multilayer perceptron adalah 75%. Kemiripan pada kata-kata dalam data menyebabkan adanya kesalahan dalam membedakan antara satu topik dengan topik lainnya.
Immobilized nanoscale zero-valent iron for synergistic enhanced removal of pentachlorobenzene with Pseudomonas sp. JS100
Authors: Ma Anzhou , Ma Jianpeng , Chen Xianke , Zhuang Guoqiang 
Published: November 2022

Highly chlorinated benzenes usually have a low efficient degradation in environment. Here we proposed a synergistic removal strategy of pentachlorobenzene (PeCB) using Pseudomonas sp. JS100 coupled with immobilized nanoscale zero-valent iron (NZVI). The structural and textural features of the synergistic system were characterized by X-ray powder diffraction, field emission scanning electron microscopy, and a specific surface area and pore size analysis. Nanoscale zero-valent iron particles were dispersed and attached to the biofilter, which increased the specific surface area to 34.5 m2 g−1. The batch experiment revealed that the removal efficiency of PeCB reached 80.2% in the synergistic system within 48 h. The degradation followed pseudo-first-order reaction kinetics, and the reaction rate constant was measured to be 0.0336 h−1. In the degradation mechanism, PeCB was degraded by NZVI to lower chlorobenzenes, which were utilized by Pseudomonas sp. JS100 as nutrients, thereby achieving rapid removal of PeCB.
Motivations for birdwatching scale – Developing and testing an integrated measure on birding motivations
Authors: Randler Christoph , Großmann Nadine 
Published: November 2022

IntroductionBirding has become a widespread, nature-related outdoor leisure activity. However, birding motivation has received little attention in research on this leisure activity so far. Since previous work showed some inconsistencies that are based on different measurements and concepts, the current study aimed at unifying and broadening the construct of birding motivation. For this purpose, we summarized the previous attempts to assess and categorize birding motivation and tried to unify them in one measurement model.MethodsStarting point was a widely accepted model on outdoor recreation to which further dimensions have been added. We investigated birders (N=569) from German speaking countries regarding their birding motivations, birding specialization, and participation in various bird-related projects.ResultsExploratory factor analysis revealed six motivation factors: Enjoyment had the highest scale mean, followed by achievement, conservation, detachment, social, and finally reputation. Confirmatory factor analysis showed a better fit of the posited six-factor model compared to the previous three-factor model supporting the initial concept of adding further scales to cover the motivational constructs more widely. Higher skilled, specialized and involved birders showed higher motivation in the dimensions conservation, social, and reputation. Conservation motivation was highly correlated with submitting observations to a citizen sciences portal and with participating in breeding bird surveys or waterbird counts.DiscussionWith our results, we expand the basic three-dimensional model of recreation motivation with the additional dimensions conservation, detachment, and reputation.
IgG anti-RBD levels during 8-month follow-up post-vaccination with BNT162b2 and mRNA-1273 vaccines in healthcare workers: A one-center study
Authors: Gil-Manso Sergio , Alonso Roberto , Catalán Pilar , Sánchez-Arcilla Ignacio , Marzola Marco , Correa-Rocha Rafael , Pion Marjorie , Muñoz Patricia ,   Gregorio Marañón Microbiology-ID COVID-19 Study Group
Published: November 2022

IntroductionSince the COVID-19 outbreak, specific mRNA-based anti-SARS-CoV-2 vaccines have been developed and distributed worldwide. Because this is the first time that mRNA vaccines have been used, there are several questions regarding their capacity to confer immunity and the durability of the specific anti-SARS-CoV-2 response. Therefore, the objective of this study was to recruit a large cohort of healthcare workers from the Gregorio Marañón Hospital vaccinated with the mRNA-1273 or BNT126b2 vaccines and to follow-up on IgG anti-RBD levels at 8 months post-vaccination.MethodsWe recruited 4,970 volunteers and measured IgG anti-RBD antibodies on days 30 and 240 post-vaccination.ResultsWe observed that both vaccines induced high levels of antibodies on day 30, while a drastic wane was observed on day 240, where mRNA-1273 vaccinated induced higher levels than BNT162b2. Stratifying by vaccine type, age, gender, and comorbidities, we identified that older mRNA-1273-vaccinated volunteers had higher antibody levels than the younger volunteers, contrary to what was observed in the BNT162b2-vaccinated volunteers.DiscussionIn conclusion, we observed that mRNA-1273 has a higher capacity to induce a humoral response than BNT162b2 and that age is a factor in the specific response.
Targeting malaria parasites with novel derivatives of azithromycin
Authors: Burns Amy L. , Sleebs Brad E. , Gancheva Maria , McLean Kimberley T. , Siddiqui Ghizal , Venter Henrietta , Beeson James G. , O’Handley Ryan , Creek Darren J. , Ma Shutao , Frölich Sonja , Goodman Christopher D. , McFadden Geoffrey I. , Wilson Danny W. 
Published: November 2022

IntroductionThe spread of artemisinin resistant Plasmodium falciparum parasites is of global concern and highlights the need to identify new antimalarials for future treatments. Azithromycin, a macrolide antibiotic used clinically against malaria, kills parasites via two mechanisms: ‘delayed death’ by inhibiting the bacterium-like ribosomes of the apicoplast, and ‘quick-killing’ that kills rapidly across the entire blood stage development.MethodsHere, 22 azithromycin analogues were explored for delayed death and quick-killing activities against P. falciparum (the most virulent human malaria) and P. knowlesi (a monkey parasite that frequently infects humans).ResultsSeventeen analogues showed improved quick-killing against both Plasmodium species, with up to 38 to 20-fold higher potency over azithromycin after less than 48 or 28 hours of treatment for P. falciparum and P. knowlesi, respectively. Quick-killing analogues maintained activity throughout the blood stage lifecycle, including ring stages of P. falciparum parasites (&lt;12 hrs treatment) and were &gt;5-fold more selective against P. falciparum than human cells. Isopentenyl pyrophosphate supplemented parasites that lacked an apicoplast were equally sensitive to quick-killing analogues, confirming that the quick killing activity of these drugs was not directed at the apicoplast. Further, activity against the related apicoplast containing parasite Toxoplasma gondii and the gram-positive bacterium Streptococcus pneumoniae did not show improvement over azithromycin, highlighting the specific improvement in antimalarial quick-killing activity. Metabolomic profiling of parasites subjected to the most potent compound showed a build-up of non-haemoglobin derived peptides that was similar to chloroquine, while also exhibiting accumulation of haemoglobin-derived peptides that was absent for chloroquine treatment.DiscussionThe azithromycin analogues characterised in this study expand the structural diversity over previously reported quick-killing compounds and provide new starting points to develop azithromycin analogues with quick-killing antimalarial activity.
Comparing heart rate variability biofeedback and simple paced breathing to inform the design of guided breathing technologies
Authors: Tabor Aaron , Bateman Scott , Scheme Erik J. , schraefel m.c. 
Published: November 2022

IntroductionA goal of inbodied interaction is to explore how tools can be designed to provide external interactions that support our internal processes. One process that often suffers from our external interactions with modern computing technology is our breathing. Because of the ergonomics and low-grade-but-frequent stress associated with computer work, many people adopt a short, shallow breathing pattern that is known to have a negative effect on other parts of our physiology. Breathing guides are tools that help people match their breathing patterns to an external (most often visual) cue to practice healthy breathing exercises.However, there are two leading protocols for how breathing cues are offered by breathing guides used in non-clinical settings: simple paced breathing (SPB) and Heart Rate Variability Biofeedback (HRV-b). Although these protocols have separately been demonstrated to be effective, they differ substantially in their complexity and design. Paced breathing is a simpler protocol where a user is asked to match their breathing pattern with a cue paced at a predetermined rate and is simple enough to be completed as a secondary task during other activities. HRV-b, on the other hand, provides adaptive, real-time guidance derived from heart rate variability, a physiological signal that can be sensed through a wearable device. Although the benefits of these two protocols have been well established in clinical contexts, designers of guided breathing technology have little information about whether one is better than the other for non-clinical use.MethodsTo address this important gap in knowledge, we conducted the first comparative study of these two leading protocols in the context of end-user applications. In our N=28 between-subject design, participants were trained in either SPB or HRV-b and then completed a 10-minute session following their training protocol. Breathing rates and heart rate variability scores were recorded and compared between groups.Results and discussionOur findings indicate that the exercises did not significantly differ in their immediate outcomes – both resulted in significantly slower breathing rates than their baseline and both provided similar relative increases in HRV. Therefore, there were no observed differences in the acute physiological effects when using either SPB or HRV-b. Our paper contributes new findings suggesting that simple paced breathing – a straightforward, intuitive, and easy-to-design breathing exercise – provides the same immediate benefits as HRV-b, but without its added design complexities.
An earthquake-triggered submarine mass failure mechanism for the 1994 Mindoro tsunami in the Philippines: Constraints from numerical modeling and submarine geomorphology
Authors: Ramirez Alec Benjamin G. , Ramos Noelynna T. , Nawanao Lyndon P. , Mangahas-Flores Robelyn Z. , Narag Ishmael C. , Baba Toshitaka , Chikasada Naotaka , Satake Kenji 
Published: November 2022

Tsunamis have been known to result from a wide range of phenomena, such as earthquakes, volcanic eruptions, submarine mass failures, and meteorite impacts. Of earthquake-generated tsunamis, those arising from strike-slip mechanisms are less common, with the 1994 Mindoro tsunami in the Philippines among the few known examples. The 1994 Mindoro tsunami followed a Mw 7.1 earthquake along the right-lateral Aglubang River Fault. The tsunami affected the coasts surrounding the Verde Island Passage, one of the Philippines’ insular seas located between the islands of Luzon and Mindoro, and east of the West Philippine Sea margin. A total of 78 lives were lost due to the earthquake and tsunami, with 41 being directly attributed to the tsunami alone. Despite the close spatial and temporal association between the 1994 Mindoro earthquake and tsunami, previous numerical modeling suggests the need for other contributing mechanisms for the 1994 tsunami. In this study, we conducted submarine geomorphological mapping of the South Pass within the Verde Island Passage, with particular focus on identifying possible submarine mass failures. Identification of submarine features were based on Red Relief Image Map (RIMM), Topographic Position Index (topographic position index)-based landform classification, and profile and plan curvatures derived from high-resolution bathymetry data. Among the important submarine features mapped include the San Andres submarine mass failure (SASMF). The San Andres submarine mass failure has an estimated volume of 0.0483 km3 and is located within the Malaylay Submarine Canyon System in the Verde Island Passage, ∼1 km offshore of San Andres in Baco, Oriental Mindoro. We also explored two tsunami models (EQ-only and EQ+SMF) for the 1994 Mindoro tsunami using JAGURS. The source mechanisms for both models included an earthquake component based on the Mw 7.1 earthquake, while the EQ+SMF also included an additional submarine mass failure component based on the mapped San Andres submarine mass failure. Modeled wave heights from the EQ-only model drastically underestimates the observed wave heights for the 1994 Mindoro tsunami. In contrast, the EQ+SMF model tsunami wave height estimates were closer to the observed data. As such, we propose an earthquake-triggered, submarine mass failure source mechanism for the 1994 Mindoro tsunami.