bluuebunny/crossref_metadata_2025_split huggingface dataset:
Penerapan Algoritma K-Means Dalam Pengelompokan Kesejahteraan Rakyat Berdasarkan Kecamatan di Kabupaten Karawang
Authors: Fitriani Dinda , Padilah Tesa Nur , Sari Betha Nurina 
Published: July 2022

<p><strong><em>Abstrack</em></strong></p><p><em>To make it easier for the government to implement policies related to people's welfare issues, it is necessary to know which areas have low levels of people's welfare, so that the government can prioritize the welfare of the people in that region. In this regard, it is necessary to classify the welfare of the people based on the existing area. This paper applies data mining techniques with the k-means algorithm in classifying people's welfare based on sub-district areas. The results of data processing with the help of tools Rstudio 4.0.5 obtained 3 clusters. Cluster 1 is a cluster with a high level of people's welfare, consisting of 7 sub-districts. Cluster 2 is a cluster with a moderate level of people's welfare, consisting of 8 sub-districts. Cluster 3 is a cluster with a low level of people's welfare, consisting of 7 sub-districts. In clustering with 3 clusters, the SSE value is 23,58788, and the accuracy rate is 72.9%.</em></p><p><em>Keywords: People's Welfare, Data Mining, K-Means Clustering</em></p><p> </p><p><strong>Abstrak</strong></p><p>Untuk mempermudah pemerintah mengimplementasikan kebijakan yang terkait dengan masalah kesejahteraan rakyat, perlu diketahui daerah mana saja yang memiliki tingkat kesejahteraan rakyat rendah, sehingga pemerintah dapat memprioritaskan kesejahteraan rakyat pada wilayah tersebut. Berkaitan dengan hal tersebut, perlu dilakukan pengelompokkan kesejahteraan rakyat berdasarkan wilayah yang ada. Paper ini menerapkan teknik <em>data mining </em>dengan algoritma <em>k</em><em>-</em><em>m</em><em>eans</em> dalam pengelompokan kesejahteraan rakyat berdasarkan wilayah kecamatan. Hasil pengolahan data dengan bantuan <em>tools</em> Rstudio 4.0.5 diperoleh 3 <em>cluster</em><em>. C</em><em>luster</em> 1 merupakan <em>cluster</em> dengan tingkat kesejahteraan rakyat tinggi, terdiri dari 7 kecamatan. C<em>luster</em> 2 merupakan <em>cluster</em> dengan tingkat kesejahteraan rakyat sedang, terdiri dari 8 kecamatan. C<em>luster</em> 3 merupakan <em>cluster</em> dengan tingkat kesejahteraan rakyat rendah, terdiri dari 7 kecamatan. Dalam melakukan <em>clustering</em> dengan 3 <em>cluster</em> diperoleh nilai SSE sebesar 23.58788, dan tingkat akurasi sebesar 72.9%.</p><p><strong>Kata kunci</strong><strong>:</strong> Kesejahteraan Rakyat, <em>Data Mining</em>, K-Means <em>Clustering</em></p>
Penerapan Algoritma Linier Congruent Method Pada Aplikasi Pembelajaran Geografi
Authors: Zahara Syafira , Asriyanik Asriyanik , Apriandari Winda 
Published: July 2022

<p><strong><em>Abstract </em></strong></p><p><em>The Covid-19 pandemic era caused the learning process to be carried out creatively, using media and other learning resources other than textbooks provided by the school, so that learning outcomes can be obtained optimally, especially for geography subjects. This article aims to create a geography learning media model in the form of a quiz that can be used as a learning support media, so that students can learn well, even in situations where they do not interact directly with the teacher. The media development method used is the Multimedia Development Life Cycle and the Linear Congruent Method to manage the randomization process. The components contained in the application are quizzes, word sequences, and puzzles. By using the LCM algorithm in regulating the randomization process, it is hoped that the questions that will be displayed are not easily guessed by students.</em></p><p><em>Keywords: Linear Congruent Method, Multimedia Development Life Cycle, Geography learning application</em></p><p> </p><p><strong><em>Abstrak</em></strong></p><p>Era pandemi Covid-19 menyebabkan proses pembelajaran mesti dilaksanakan secara kreatif, menggunakan media dan sumber-sumber belajar lain selain buku teks yang disediakan oleh pihak sekolah, agar capaian pembelajaran dapat diperoleh secara maksimal, khususnya untuk mata pelajaran geografi. Artikel ini bertujuan untuk membuat sebuah model media pembelajaran geografi dalam bentuk kuis yang dapat digunakan sebagai media pendukung pembelajaran, sehingga siswa dapat belajar dengan baik, walau dalam situasi tidak berinteraksi secara langsung dengan pengajar. Metode pengembangan media yang digunakan adalah <em>Multimedia Development Life Cycle </em>dan <em>Linier Congruent Method </em>untuk mengatur proses pengacakan soal. Komponen yang terdapat pada aplikasi berupa kuis, rangkai kata, dan <em>puzzle</em><em>. </em>Dengan menggunakan algoritma LCM dalam mengatur proses pengacakannya, soal-soal yang akan ditampilkan diharapkan tidak mudah ditebak oleh siswa.</p><p>Kata kunci<em>: Linier Congruent Method, Multimedia Development Life Cycle,</em><em> </em>Aplikasi pembelajaran Geografi</p>
THE IMPORTANCE OF BUILDING STUDENTS’ ENGAGEMENT DURING ONLINE LEARNING
Authors: Pujiani Tri 
Published: July 2022

ABSTRACT

Students’ engagement can be defined as how much time, commitment, and effort is devoted to the learning process. Students’ engagement is an important element in learning because it is a factor that affects academic success. During the emergency online learning due to covid-19 pandemic, some problems emerged because of the lack of learning engagement. This descriptive study was aimed to find out the problems faced by the students and the lecturers during the online learning as well as the tips to build learning engagement. The study was carried out in July 2020 to the students and the lecturers of Harapan Bangsa University. The data obtained from questionnaire and semi structured interview showed that although the implementation of online learning has been good, there were still some problems to be solved. Moreover, learning engagement was absolutely required during the online learning. It is expected that the result of this study may be useful for lecturers in designing the effective online learning and also for the students in understanding their role during the learning process.
STRATEGI MENCIPTAKAN KEUNGGULAN BERSAING MELALUI INOVASI UNTUK MENINGKATKAN KEPUASAN PELANGGAN
Authors: Putri Puspita Lianti , Chandra Sari Kartika Dwi 
Published: July 2022

Meningkatnya pertumbuhan perusahaan startup mendorong berkembangnya teknologi sistem pembayaran dalam bertransaksi. Perkembangan non tunai dari tahun ke tahun mengalami peningkatan, selain didukung oleh kemajuan teknologi, adanya perubahan pola hidup masyarakat dan berkembangnya inovasi menambah macam transaksi non tunai. Bank Indonesia (BI) terus mendorong penggunaan alat pembayaran non tunai. Pada tanggal 14 Agustus 2014 Bank Indonesia mencanangkan Gerakan Nasional Non Tunai (GNNT). Dengan menggunakan e-payment transaksi pembayaran menjadi lebih cepat, mudah, dan aman. Seiring pertumbuhan e-payment, muncul berbagai macam fitur e-payment seperti e-cash, smart card, e-cheque, e-wallet, dan lainnya. Salah satu kunci untuk memenangkan persaingan terletak pada kemampuan perusahaan untuk menciptakan keunggulan bersaing. Perusahaan yang memiliki keunggulan kompetitif senantiasa memiliki kemampuan dalam memahami perubahan struktur pasar dan mampu memilih strategi pemasaran yang efektif. Dengan menciptakan inovasi, sebuah produk dapat memiliki posisi strategis di pasar, memiliki life cycle yang lebih panjang, dan dapat menahan serangan dari para pesaing serta dapat memenuhi keinginan pasar (konsumen). Dengan demikian perusahaan akan selalu senantiasa memuaskan konsumennya dengan memenuhi keinginan para konsumen dengan melakukan inovasi-inovasi atas produknya. Tujuan utama perusahaan, khususnya perusahaan startup adalah menciptakan konsumen yang merasa puas atas pelayanan yang diberikan maupun produk yang ditawarkan. Salah satu perusahaan yang menawarkan dompet elektronik adalah Go-Pay. Go-Pay berdiri di bawah naungan PT Dompet Anak Bangsa, entitas anak usaha PT Aplikasi Karya Anak Bangsa. Go-Pay adalah salah satu financial technology di Indonesia yang merupakan layanan mobile payment yang terdapat pada platform Gojek. Untuk menciptakan keunggulan bersaing dan meningkatkan kepuasan pelanggan, dalam beberapa tahun Go-Pay terus melaukan inovasi dan melebarkan sayapnya ke berbagai lembaga keuangan guna menjangkau lebih banyak jenis pembayaran yang semakin memudahkan pengguna. Pada penelitian ini, peneliti bermaksud untuk mengetahui Strategi Menciptakan Kunggulan Bersaing Melalui Inovasi Untuk Meningkatkan Kepuasan Pelanggan. Jumlah sampel dalam penelitian ini berjumlah 50 responden yang ditentukan dengan menggunakan metode non probability sampling, simple random sampling. Penelitian ini menggunakan penelitian kuantitatif kausal, pengguna Go-Pay di daerah Purwokerto, Jawa Tengah sebagai sampel. Metode Analisis data yang digunakan dalam penelitian ini adalah model SEM (Structural Equation Modeling) dengan program Analysis of Moment Structure (AMOS). Hasil dari penelitian ini menunjukkan bahwa inovasi berpengaruh positif dan signifikan terhadap keunggulan bersaing, inovasi berpengaruh positif dan tidak signifikan terhadap kepuasan pelanggan serta keunggulan bersaing berpengaruh positif dan signifikan terhadap kepuasan pelanggan.
Senam Ergonomi untuk Mencegah Keluhan Musculoskeletal Disorders
Authors: Sumarni Tri , Siwi Adiratna Sekar 
Published: July 2022

Pekerja pabrik berisiko bekerja dalam suatu posisi yang tidak ergonomi. Postur tubuh yang tidak ergonomis dapat menyebabkan musculoskeletal disorders (MSDs). Aktivitas fisik yang membutuhkan kekuatan otot yang besar, seperti mengangkut barang dan bergerak hal-hal secara manual bila dilakukan dengan postur tubuh yang buruk, dapat menyebabkan sakit punggung dan meregangkan tulang punggung. Senam ergonomi adalah beberapa teknik senam untuk mengembalikan atau memperbaiki posisi dan fleksibilitas sistem saraf dan aliran darah, sehingga dapat mengurangi keluhan muskuloskeletal. Program pengabdian masyarakat bertujuan untuk meningkatkan pengetahuan pekerja pabrik tentang keluhan MSDs, manfaat senam ergonomi, sikap ergonomis dalam bekerja seperti cara mengangkat beban yang benar, posisi duduk yang benar, cara memindah barang yang benar, langkah-langkah senam ergonomi. Metode pelaksanaaan pengabdian yaitu screening keluhan MSDs, pendidikan kesehatan dan diskusi tentang manfaat senam ergonomi dan langkah-langkah senam ergonomi. Sasaran kegiatan adalah pekerja pabrik yang berjumlah 20. Pekerja pabrik sebagaian besar berusia 30-40 tahun (70%), mempunyai pendidikan SD (55%), keluhan MSDs nyeri punggung bawah (30%). Terkait pengetahuan tentang sikap ergonomi dan senam ergonomi, sebelum pendidikan kesehatan tingkat pengetahuan sebagian besar dalam kategori kurang (50%) dan setelah pendidikan kesehatan tingkat pengetahuan dalam kategori baik (75%).
Children’s failure to control variables may reflect adaptive decision-making
Authors: Bramley Neil R. , Jones Angela , Gureckis Todd M. , Ruggeri Azzurra 
Published: July 2022

AbstractChanging one variable at a time while controlling others is a key aspect of scientific experimentation and a central component of STEM curricula. However, children reportedly struggle to learn and implement this strategy. Why do children’s intuitions about how best to intervene on a causal system conflict with scientific practices? Mathematical analyses have shown that controlling variables is not always the most efficient learning strategy, and that its effectiveness depends on the “causal sparsity” of the problem, i.e., how many variables are likely to impact the outcome. We tested the degree to which 7- to 13-year-old children (n = 104) adapt their learning strategies based on expectations about causal sparsity. We report new evidence demonstrating that some previous work may have undersold children’s causal learning skills: Children can perform and interpret controlled experiments, are sensitive to causal sparsity, and use this information to tailor their testing strategies, demonstrating adaptive decision-making.
Electric Field Screening in Pair Discharges and Generation of Pulsar Radio Emission
Authors: Tolman Elizabeth A. , Philippov A. A. , Timokhin A. N. 
Published: July 2022

Abstract
Pulsar radio emission may be generated in pair discharges that fill the pulsar magnetosphere with plasma as an accelerating electric field is screened by freshly created pairs. In this Letter, we develop a simplified analytic theory for the screening of the electric field in these pair discharges and use it to estimate total radio luminosity and spectrum. The discharge has three stages. First, the electric field is screened for the first time and starts to oscillate. Next, a nonlinear phase occurs. In this phase, the amplitude of the electric field experiences strong damping because the field dramatically changes the momenta of newly created pairs. This strong damping ceases, and the system enters a final linear phase, when the electric field can no longer dramatically change pair momenta. Applied to pulsars, this theory may explain several aspects of radio emission, including the observed luminosity, L
rad ∼ 1028 erg s−1, and the observed spectrum, S

ω
∼ ω
−1.4±1.0.
Jupiter's Temperature Structure: A Reassessment of the Voyager Radio Occultation Measurements
Authors: Gupta Pranika , Atreya Sushil K. , Steffes Paul G. , Fletcher Leigh N. , Guillot Tristan , Allison Michael D. , Bolton Scott J. , Helled Ravit , Levin Steven , Li Cheng , Lunine Jonathan I. , Miguel Yamila , Orton Glenn S. , Hunter Waite J. , Withers Paul 
Published: July 2022

Abstract
The thermal structure of planetary atmospheres is an essential input for predicting and retrieving the distribution of gases and aerosols, as well as the bulk chemical abundances. In the case of Jupiter, the temperature at a reference level—generally taken at 1 bar—serves as the anchor in models used to derive the planet’s interior structure and composition. Most models assume the temperature measured by the Galileo probe. However, those data correspond to a single location, an unusually clear, dry region, affected by local atmospheric dynamics. On the other hand, the Voyager radio occultation observations cover a wider range of latitudes, longitudes, and times. The Voyager retrievals were based on atmospheric composition and radio refractivity data that require updating and were never properly tabulated; the few existing tabulations are incomplete and ambiguous. Here we present a systematic electronic digitization of all available temperature profiles from Voyager, followed by their reanalysis, employing currently accepted values of the abundances and radio refractivities of atmospheric species. We find the corrected temperature at the 1 bar level to be up to 4 K greater than the previously published values, i.e., 170.3 ± 3.8 K at 12°S (Voyager 1 ingress) and 167.3 ± 3.8 K at 0°N (Voyager 1 egress). This is to be compared with the Galileo probe value of 166.1 ± 0.8 K at the edge of an unusual feature at 6.°57N. Altogether, this suggests that Jupiter’s tropospheric temperatures may vary spatially by up to 7 K between 7°N and 12°S.
Proasellus thrive in the dark – plasticity enabling cave colonisation?
Authors: Bedek Jana , Bilandžija Helena 
Published: July 2022

Darkness is the hallmark of all subterranean habitats and, to some degree, of many surface habitats. Many surface animals that live in semi-dark habitats, such as freshwater benthos, are photophobic. Yet, few of them can colonize caves and form subterranean populations. We hypothesize that phenotypic plasticity induced by darkness enables surface crustaceans to colonize caves, as has been previously shown for the cavefish Astyanax mexicanus.
Our target organisms were surface species that form distinct subterranean populations with different adaptations to caves and have closely related cave species. Proasellus proved to be a good model system, and we selected the surface species Proasellus coxalis and its cave relative P. anophtalmus to learn what adaptations evolve in subterranean forms. We exposed a randomly selected group of both species to complete darkness (DD) where we could establish breeding colonies. Control breeding colonies are exposed to a 12:12 h light-dark photoperiod (LD). Other conditions are kept as constant and equal as possible, including conditioned Alnus glutinosa leaves used for shelter and food.
We examined the molecular phenotypes of both Proasellus species, animals originally collected from the wild and preserved after four months under the experimental conditions DD and LD. The number of observed differentially expressed genes (DEGs) was significantly higher between cohorts DD and LD of P. coxalis compared to P. anophtalmus. The direction of regulation of DEGs also showed the opposite effect, with the cohort of P. coxalis DD showing predominant upregulation and the cohort of P. anophtalmus DD showing predominant downregulation relative to their cohorts LD. A greater number of DEGs in both species were associated with various metabolic processes such as lipid regulation. In contrast, DEGs related to growth, cell division, rhythmic processes, sensory perception of taste, and sexual reproduction were observed only in P. coxalis.
We examined the changes at the phenotypic level in the first generation born in the experiment. Surprisingly, P. coxalis showed better fitness under DD conditions (growth rate, fecundity, survival). Other phenotypes were altered in both adaptive and non-adaptive directions i. e. towards vs. opposite of cave adaptations. We conclude that darkness is not a limiting factor in cave colonization and suggest that it may even be a key factor in the evolution of troglomorphy via phenotypic plasticity.
Caves as evolutionary dead end? The journey of the stygobiont isopod Monolistra pavani toward sunlight
Authors: Manenti Raoul , Scarì Giorgio , Barzaghi Benedetta , Mercurio Silvia , Sherpa Stephanie , Melotto Andrea , Pennati Roberta , Ficetola Gentile 
Published: July 2022

Monolistra are stygobiont isopods spread in numerous karst areas from the south-eastern parts of Dinaric karst to south-eastern Switzerland. They inhabit different typologies of groundwater habitats from lentic to lotic ones where they can be particularly important in terms of biomass. M. pavani is a steno-endemic species that was reported only for a single cave system in Lombardy (Italy).
From October 2018 to March 2022, we performed multiple surveys in the subterranean system and in its surrounding springs recording abundance and distribution of the species. In December 2018 we discovered three spring populations/subpopulations of M. pavani in which pigmented individuals also occurred. We performed UV and infrared spectroscopy to evidence potential differences in the signals related to C-C bonds of the aromatic ring of the melanin molecules between cave and spring individuals. In 2020, we also compared circadian rhythm and responses to light stimuli of cave and spring individuals.
Occurrence of M. pavani in springs was regular and associated to specific spring microhabitats; individuals were active both during day and during night. Nor spring and cave individuals avoid light stimuli. Circadian rhythm analyses revealed that individuals from springs are more active than those from cave, showing higher activity during day than during night. The 20% of spring individuals are pigmented, and eumelanin occurs in dark individuals.
Our results suggest the possible ongoing adaptation to surface habitats at the border with groundwater in a species considered as a strict stygobiont. Molecular analyses on the population relationships are currently ongoing.
Study of the Invertebrate diversity in Prometheus Show Cave (Georgia, Caucasus)
Authors: Maghradze Eter , Barjadze Shalva , Faille Arnaud , Asanidze Zezva 
Published: July 2022

Prometheus Cave is one of the largest caves in Georgia among the local six show caves. Before opening the cave as a tourist attraction, no research was conducted on the cave to study the invertebrate community living there, despite the cave's status as a natural monument. Before our study, only 22 species of invertebrates were known from Prometheus Cave, while none of the invertebrate species have been reported from adjacent non-touristic Datvi and Melouri caves.
Cave invertebrate fauna was monitored monthly from 2018 to 2021 in the Prometheus cave and adjacent non-touristic Datvi and Melouri caves. The sampling was conducted on at least ten sites per cave each month. The abundance and incidence of the invertebrates were recorded on each site during field surveys. We ordinated the invertebrate diversity of the studied caves using Principal Component Analysis (PCA). After intensive investigations for three years, the number of species in Prometheus Cave increased from 22 to 47. Besides, ten species in Datvi and 11 species in Melouri caves were found for the first time. Our results suggest the existence of a significant difference in the diversity of the cave invertebrate fauna between the touristic part of Prometheus show Cave and its non-touristic part - Alpinist's hall, Datvi, and Melouri caves. The primary factor differentiating Prometheus show Cave from the others is the lower abundance of the species. Hurlbert's PIE and rarefaction analysis of the diversity explains that the diversity is also most unevenly distributed in this cave.
Voit-on mieux de près ? Être chercheur embarqué au Parlement
Authors: Beauvallet Willy , Fragnon Julien , Perret Sarah 
Published: July 2022

Existe-t-il une spécificité de l’« acteur » collaborateur-chercheur ? Cette étude interroge ce double statut qui soulève des questions à la fois épistémologiques et méthodologiques sur l’approche du terrain et l’objet de recherche. Mais elle interroge également les effets d’une telle posture de recherche sur la pratique professionnelle. Dans quelle mesure ces deux postures s’influencent-elles mutuellement ? C’est à ces questions que ce travail collaboratif se propose de répondre à partir d’un retour réflexif de chacun des trois autrice et auteurs sur leurs propres expériences au service d’élu·es locaux, de parlementaires et de ministre. II s’agit ainsi de dégager des pistes de recherche en mettant véritablement au cœur de l’analyse cette position hybride particulière qu’est l’engagement du chercheur-collaborateur. L’article démontre qu’en dépit de certaines limites méthodologiques, ce double statut propose de véritables avantages heuristiques aussi bien sur un plan méthodologique que sur un plan empirique en matière de fonctionnement du Parlement et du rôle finalement hétérogène des collaboratrices et collaborateurs parlementaires.