bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fast Sparse PCA via Positive Semidefinite Projection for Unsupervised Feature Selection
Authors: Zheng Junjing , Zhang Xinyu , Jiang Weidong , Huo Kai , Liu Yongxiang , Liu Li 
Published: September 2022

<p>In the field of unsupervised feature selection, sparse principal component analysis (SPCA) methods have attracted more and more attention recently. Compared to spectral-based methods, SPCA methods don’t rely on the construction of a similarity matrix and show better feature selection ability on real-world data. Existing convex SPCA methods reformulate SPCA as a convex model by regarding the reconstruction matrix as an optimization variable. However, they are lack of constraints equivalent to the orthogonality restriction in SPCA, leading to larger solution space. In this paper, a standard convex SPCA-based model for unsupervised feature selection is proposed and proven to have its optimal solution falling onto the Positive Semidefinite (PSD) Cone. Further, a two-step fast optimization algorithm via PSD projection is presented to solve the proposed model (SPCA-PSD), whose computational complexity is linear to the number of samples. Two other existing convex SPCA-based models’ optimal solution space is also proven to be the PSD cone. Therefore, the PSD versions of these two models are proposed to accelerate their convergence. Experiments on synthetic and real-world datasets demonstrate the effectiveness and efficiency of the proposed methods. </p>
DAMPAK PEMBERIAN ZPT DAN POC TERHADAP PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.)
Authors: Barus Efrata , Sembiring Riduan , Sembiring Meriksa 
Published: September 2022

This study aims to determine the ZPT and POC intractions that can affect the growth and production of onion plants. This reserch was carried out in Gurubenua Village, Munte District, Karo Regency, Nourth Sumatra, with a height of ±1175-1350 meters above sea level. This research was conducted from June 2019 to September 2019, using the Factorial Randomized Block Design (RBD) method consisting of two regulatory factors, the first dose of ZPT with symbol A consisting of 4 levels, namely: No dosing (A0), 0,75ml/ liter of water (A1), 1,5ml/ liter of water (A2), and 2,25ml/ liter of water (A3). Second is the POC dose with the symbol P consisting of 4 levels, namely: Without dosing (P0), 1,5ml/ liter of water (P1), 3ml/ liter of water (P2), and 4,5ml/ liter of water (P3). Approved, 16 preparations were obtained, with two replications. The data analyzed the F test variance at the 5% level. If there is a significant difference (p˂0.05), then try to continue with the DMRT test. The results of the studyprove the need for a real implementation of ZPT (p˂0.005) for height plant variables per sample, number of leaves per plotand number of tubers per plot, and not significant (p˃0.005) for variable measurements of tuber diameter per sample, plant weight per sample and plant weight per plot. The treatment of submitting POC must be real (p˂0.005) of the plant height variable per sample, number of leaves per sample, number of tubers per sample, and plant weight per sample and not significant (p˃0.005) to the variable influence of tuber diameter per sample and plant weight per plot.
ANALISIS KESULITAN DALAM PEMECAHAN MASALAH PEMBAGIAN
Authors: Purba Frikson Jony 
Published: September 2022

This study aims to analyze students' difficulties in solving division problems. This research was conducted in early September with the research location at SD Citra Kasih Cendana, Tanjung Morawa District. Data collection techniques in this study used tests and interviews. After analyzing the data on the results of the study, the calculation of the average grade IV SD Citra Kasih Cendana SD Tanjung Morawa District to understand the material division of Mathematics subjects obtained a value of 61.25 and was included in the Underprivileged category, Analysis of the learning difficulties of grade IV students in distribution material at SD Citra Kasih Cendana, Tanjung Morawa Subdistrict, the academic year 2020 is that students do not really like learning division operations, they do not understand the steps in carrying out the distribution, and there are still students who have not memorized the distribution so that students still experience difficulties in operations division. The factors that cause learning difficulties in fourth grade students in the distribution material at SD Citra Kasih Cendana, Tanjung Morawa District, the 2020 academic year are internal factors, namely talents and interests, motivation and enthusiasm for learning, hyperactivity and students do not understand the material well, while the external factor is the teacher. rarely checks or assesses student learning outcomes that students have done in class, and the teacher's way of teaching is still not appropriate in the learning they teach.
REVITALISASI MUTU PENDIDIKAN ANAK USIA DINI BERBASIS KARAKTER BUILDING DALAM MENINGKATKAN IPM DI KELURAHAN SUKA MAJU
Authors: Rezeki Ulfah Sari , Cornelia Tina Sheba , Harahap Siti Zahara. H. 
Published: September 2022

Character education is carried out with the aim of improving the quality of educational processes and outcomes that lead to the formation of character and morals of students as a whole, integrated and balanced in accordance with the competency standards of graduates in educational units. In addition, character education is also directed at developing moral intelligence (building moral intelligence) or developing the ability to understand right and wrong, namely having strong ethical beliefs and acting on these beliefs so that people behave right and respectfully. Revitalizing education needs to be done by applying a holistic and character-based learning model, revitalizing moral, value, religion and citizenship education, revitalizing family, school and community education, and revitalizing the role of mass media. This research was conducted to determine the contribution of character education in Kelurahan SukaMaju, to know the internilization of character education, and to find out the constraints and efforts that will be made in implementing character education in Kelurahan Like the Forward. Contributing thoughts for Kelurahan Suka Maju in implementing character education, especially the character of the nation. Data collection is collected in this study using measuring tools or research instruments such as: Interviews, questionnaires, and observations.
MEMPERKENALKAN METODE INVESTIGASI PEMECAHAN MASALAH UNTUK ANAK SEKOLAH DASAR MELALUI SERIAL ANIME JEPANG DETECTIVE CONAN
Authors: Butar-Butar Juli Loisiana , Simamora Indah 
Published: September 2022

This study aims to introduce an investigation method to solve mathematical problems using the Japanese anime series Detective Conan, while the spesific purpose is to introduce students to problem solving method that they need to understand based on the information provided and manage the information based on their abilities. The method used in this research is classroom action research by showing one episode of the Detective Conan anime, after that organized several groups to test each group could solve the challenge quiz within 30 minutes and the results of the analysis of work based on cognitive function. The results showed that the mean duration of group investigation quiz was not significantly different from 30 minutes. In addition, based on the mean assessment of the results of the work there are two results, namely there are differences in values based on groups and no differences in values based on cognitive function..
Hubungan Perilaku Caring Perawat Terhadap Penerapan Pencegahan Pasien Resiko Jatuh Di Ruang Rawat Inap
Authors: Reni Ises , Efendi Zulham 
Published: September 2022

Pelayanan keperawatan, merupakan pelayanan 24 jam dan terus menerus berada di berbagai unit kerja rumah sakit. Dalam memberikan pelayanan keperawatan kepada pasien, perawat melakukan prosedur/tindakan keperawatan yang banyak dan dapat menimbulkan risiko sangat begitu besar, untuk menghindari adanya efek negatif pada pasien di perlukan tindakan yang disebut dengan caring. Dengan berperilaku caring diharapkan perawat mampu mengidentifikasi kemampuan pasien selama di rumah sakit sehingga keamanan pasien terjamin sampai dengan keluar rumah sakit. Tujuan dari penelitian ini adalah untuk mengetahui hubungan perilaku caring perawat terhadap penerapan pencegahan pasien resiko jatuh di ruang rawat inap RSUD dr. Rasidin Padang.
Jenis penelitian ini adalah cross sectional. Populasi pada penelitian ini adalah seluruh perawat di ruang rawat inap RSUD dr. Rasidin Padang pada tanggal 18 Juli 2017– 20 Juli 2017 sebanyak 84 sampel dengan menggunakan metode ”total sampling” dan instrumen penelitian dengan menggunakan kuesioner. Analisa secara univariat ditampilkan pada tabel distribusi frekuensi dan bivariat dengan menggunakan uji chi-square dengan kepercayaan 95% α = 0,05.
Hasil penelitian menunjukkan bahwa lebih dari separuh (53.6%) responden memiliki perilaku caring perawat yang rendah, lebih dari separuh (51.2%) responden mengalami penerapan pencegahan pasien resiko jatuh yang baik dan terdapat hubungan yang bermakna antara perilaku caring perawat terhadap penerapan pencegahan pasien resiko di Ruang Rawat Inap RSUD dr. Rasidin Padang tahun 2017 (P value = 0.015). Kesimpulan dari hasil penelitian perilaku caring perawat mempengaruhi penerapan pencegahan pasien resiko jatuh.
Diharapkan kepada kepala ruangan rawat inap untuk memberikan pelatihan keapda perawat tentang perilaku caring dan manajemen perawat dalam penerapan pencegahan pasien resiko jatuh.
Daftar Bacaan :16 (2006-2016)
Pengaruh Literasi Ekonomi terhadap Minat Berwirausaha Peserta Didik Kelas XI IPS SMA Negeri 38 Jakarta
Authors: Silviana Silviana , Megayanti Windi 
Published: September 2022

Ekonomi merupakan faktor yang memegang peranan penting dalam kehidupan manusia. Akibat munculnya Covid-19 membawa dampak di semua aspek kehidupan salah satunya dibidang ekonomi. Masalah yang muncul diantaranya yaitu disrupsi pada kondisi ketenagakerjaan yaitu meningkatnya jumlah angka pengangguran. Dengan berwirausaha dapat membantu mengurangi angka pengangguran. Untuk memulai berwirausaha tidak dapat secara instan melainkan disasari adanya minat. Jumlah rasio kewirausahaan di Indonesia sendiri masih cukup rendah dibandingkan dengan negara ASEAN lainnya. Selain itu kegiatan ekonomi mengacu pada sejauh mana pelaku ekonomi memiliki dan memahami pengetahuan tentang ekonomi. Tingkat pemahaman literasi ekonomi setiap masyarakat berbeda-beda. Kenyataannya tingkat literasi keuangan yang merupakan bagian dari literasi ekonomi nasional masih dibilang rendah. Penelitian ini bertujuan untuk mengetahui pengaruh literasi ekonomi terhadap minat berwirausaha. Penelitian ini menggunakan penelitian deskriptif dengan pendekatan kuantitatif. Penelitian ini dilakukan di SMA Negeri 38 Jakarta pada bulan Februari – Juni tahun 2022. Populasi dalam penelitian ini adalah peserta didik kelas XI IPS SMA Negeri 38 Jakarta yang berjumlah 120 peserta didik. Jumlah sampel sebanyak 92 peserta didik yang diambil dengan menggunakan teknik simple random sampling. Metode pengumpulan data menggunakan observasi, tes, kuesioner, dan dokumentasi. Teknik analisis data yang digunakan yaitu regresi linear sederhana dan uji hipotesis. Nilai regresi linear untuk penelitian ini yaitu Y = 62,46 + 0,212X. Berdasarkan hasil perhitungan statistik diketahui terdapat pengaruh antara literasi ekonomi terhadap minat berwirausaha peserta didik.
Sosialisasi Perubahan Perilaku Hidup New Normal Untuk Menekan Penyebaran Covid-19 Pada Masyarakat di Surabaya Raya
Authors: Tjahjadi Bambang , Soewarno Noorlailie , Wan Ismail Wan Adibah , Kustiningsih Nanik , Nafidah Lina Nasihatun 
Published: September 2022

Secara umum pengabdian ini bertujuan untuk memberikan edukasi kepada masyarakat agar bisa menerapkan PHBS dengan baik dan benar, sebagai salah satu upaya menjaga akselerasi perubahan perilaku kesehatan yang terjadi akibat pandemi COVID-19. Secara khusus tujuan yang ingin dicapai adalah: Meningkatnya partisipasi masyarakat dan kesadaran serta kepatuhan terhadap protokol kesehatan (5M) dan juga ketaatan pada praktik 3 T untuk mengurangi penyebaran COVID-19 serta antusiasme masyarakat dalam mengikuti program vaksinasi. Kegiatan yang dilakukan dalam pengabdian masyarakat ini dengan memberikan edukasi dan sosialisasi serta focus group discussion (FGD), ceramah, penayangan Vidio, dan demonstrasi terkait penerapan protokol kesehatan 5M secara konsisten, mengikuti praktik 3T, dan mengikuti program vaksinasi pada masyarakat Surabaya raya (Surabaya, Gresik, sidoarjo, dan sekitarnya). Hasil dari pengabdian masyarakat ini menunjukan bahwa masyarakat Surabaya raya melakukan perubahan perilaku dan bersedia beradaptasi dengan kondisi new normal karena informasi terpercaya yang didapat tentang COVID-19, hal ini dibuktikan dengan semakin meningkatnya kepatuhan masyarakat terhadap protokol kesehatan (5M) dan juga Ketaatan pada praktik 3 T ditunjukkan melalui peningkatan penggunaan aplikasi PeduliLindungi (CareProtect) yang dikembangkan pemerintah untuk mengurangi penyebaran COVID-19.
Introducing the Fear Learning and Anxiety Response (FLARe) app and web portal for the remote delivery of fear conditioning experiments
Authors: McGregor T. , Purves K. L. , Barry T. , Constantinou E. , Craske M. G. , Breen G. , Young K. S. , Eley T. C. 
Published: September 2022

AbstractExperimental paradigms measuring key psychological constructs can enhance our understanding of mechanisms underlying human psychological well-being and mental health. Delivering such paradigms remotely affords opportunities to reach larger, more representative samples than is typically possible with in-person research. The efficiency gained from remote delivery makes it easier to test replication of previously established effects in well-powered samples. There are several challenges to the successful development and delivery of remote experimental paradigms, including use of an appropriate delivery platform, identifying feasible outcome measures, and metrics of participant compliance. In this paper, we present FLARe (Fear Learning and Anxiety Response), open-source software in the form of a smartphone app and web portal for the creation and delivery of remote fear conditioning experiments. We describe the benefits and challenges associated with the creation of a remote delivery platform for fear conditioning, before presenting in detail the resultant software suite, and one instance of deploying this using the FLARe Research infrastructure. We provide examples of the application of FLARe to several research questions which illustrate the benefits of the remote approach to experiment delivery. The FLARe smartphone app and web portal are available for use by other researchers and have been designed to be user-friendly and intuitive. We hope that FLARe will be a useful tool for those interested in conducting well-powered fear conditioning studies to inform our understanding of the development and treatment of anxiety disorders.
A sino-japán írásrendszer hatása a gyorsírásra
Authors: Albeker András Zsigmond 
Published: September 2022

A japán gyorsírás Lindsley és Graham rendszerének adaptálásával született meg, és 1883-ra datálható az első alkalmazása. Azonban a gyorsírás fejlesztői, használói a sino-japán írásrendszerből is merítettek, úgy mint

okototen (乎古止点)
kanaírás
kanji, illetve bushu

Az egyéb hatások az írásirány, a dakuten (濁点) és a hatsuon (撥音) jelölése, valamint a japán-sinojapán szópárok felhasználása. Ezek a hatások nem korlátozódnak a Meiji kori gyorsírásokra, a modern gyorsírásokban is kimutathatók.
Quenching in the Right Place at the Right Time: Tracing the Shared History of Starbursts, Active Galactic Nuclei, and Poststarburst Galaxies Using Their Structures and Multiscale Environments
Authors: Yesuf Hassen M. 
Published: September 2022

Abstract
This work uses multiscale environments and the structures of galaxies in the Sloan Digital Sky Survey as consistency checks on the evolution from starburst to quiescence at redshift z < 0.2. The environmental indicators include fixed-aperture mass overdensities (δ

xMpc, x ∈ {0.5, 1, 2, 4, 8} h
−1 Mpc), k-nearest neighbor distances, the tidal parameter, halo mass (M

h
), and satellite/central classification. The residuals of the specific star formation rates (Δ SSFRs) are used to select starbursts (ΔSSFR > 0.6 dex, N ≈ 8600). Quenched poststarbursts (QPSBs) are selected using Hα < 3 Å emission and Hδ

A
> 4 Å absorption (N ≈ 750). The environments of starbursts and QPSBs are compared with those of active galactic nuclei (AGNs) and inactive galaxies of varying ΔSSFR. The environments of starbursts, AGNs, and QPSBs are unlike the environments of most quiescent galaxies (QGs). About 70%–90% of starbursts, AGNs with Hδ

A
> 4 Å, and QPSBs are centrals; ∼80%–90% have M

h
< 1013
M
⊙, and only ∼2%–4% have M

h
> 1014
M
⊙ or live in clusters. Their M

h
and satellite fractions are also different from those of QGs. All QPSBs are matched to some SFGs, starbursts, AGNs, and QGs of similar M
⋆, environments, concentration indices, and velocity dispersions. A significant fraction (∼20%–30%) of starbursts cannot be matched to QPSBs or QGs. The implications are that: (1) some starbursts do not quench rapidly; (2) the satellite-quenching mechanisms operating in high-density environments cannot account for most QPSBs; (3) the evolution from starbursts to QPSBs to QGs is not the dominant path at z < 0.2; and (4) starbursts are not mainly triggered by tidal interactions.
Modeling Extinction and Reddening Effects by Circumstellar Dust in the Betelgeuse Envelope in the Presence of Radiative Torque Disruption
Authors: Truong Bao , Tram Le Ngoc , Hoang Thiem , Giang Nguyen Chau , Diep Pham Ngoc , Nguyen Dieu D. , Phuong Nguyen Thi , Hoang Thuong D. , Ngoc Nguyen Bich , Fuda Nguyen , Phan Hien , Bui Tuan Van 
Published: September 2022

Abstract
Circumstellar dust forms and evolves within the envelope of evolved stars, including asymptotic giant branch (AGB) and red supergiant (RSG) stars. The extinction of stellar light by circumstellar dust is vital for interpreting RSG/AGB observations and determining high-mass RSG progenitors of core-collapse supernovae. However, circumstellar dust properties are not well understood. Modern understanding of dust evolution suggests that intense stellar radiation can radically change dust properties across the circumstellar envelope through the RAdiative Torque Disruption (RAT-D) mechanism. In this paper, we study the impacts of RAT-D on the grain size distribution (GSD) of circumstellar dust and model its effects on photometric observations of α Orionis (Betelgeuse). Due to the RAT-D effects, large grains formed in the dust formation zone are disrupted into smaller species of size a < 0.5 μm. Using the GSD constrained by the RAT-D effects, we model the visual extinction of background stars and Betelgeuse. We find that the extinction decreases at near-UV, optical, and IR wavelengths while increasing at far-UV wavelengths. The resulting flux potentially reproduces the observation from the near-UV to the near-IR range. Our results can be used to explain dust extinction and photometric observations of other RSG/AGB stars.
Effect of the Heliospheric State on CME Evolution
Authors: Dagnew Fithanegest Kassa , Gopalswamy Nat , Tessema Solomon Belay , Akiyama Sachiko , Yashiro Seiji 
Published: September 2022

Abstract
The culmination of solar cycle 24 by the end of 2019 has created the opportunity to compare the differing properties of coronal mass ejections (CMEs) between two whole solar cycles: solar cycle 23 (SC 23) and solar cycle 24 (SC 24). We report on the width evolution of limb CMEs in SCs 23 and 24 in order to test the suggestion by Gopalswamy et al. that CME flux ropes attain pressure balance at larger heliocentric distances in SC 24. We measure CME width as a function of heliocentric distance for a significantly large number of limb CMEs (∼1000) and determine the distances where the CMEs reach constant width in each cycle. We introduced a new parameter, the transition height (hc) of a CME, defined as the critical heliocentric distance beyond which the CME width stabilizes to a quasi-constant value. Cycle and phase-to-phase comparisons are based on this new parameter. We find that the average value of hc in SC 24 is 62% higher than that in SC 23. SC 24 CMEs attain their peak width at larger distances from the Sun than SC 23 CMEs do. The enhanced transition height in SC 24 is new observational ratification of the anomalous expansion. The anomalous expansion of SC 24 CMEs, which is caused by the weak state of the heliosphere, accounts for the larger heliocentric distance where the pressure balance between CME flux rope and the ambient medium is attained.
A Magnetogram-matching Method for Energizing Magnetic Flux Ropes Toward Eruption
Authors: Titov V. S. , Downs C. , Török T. , Linker J. A. 
Published: September 2022

Abstract
We propose a new “helicity-pumping” method for energizing coronal equilibria that contain a magnetic flux rope (MFR) toward an eruption. We achieve this in a sequence of magnetohydrodynamics relaxations of small line-tied pulses of magnetic helicity, each of which is simulated by a suitable rescaling of the current-carrying part of the field. The whole procedure is “magnetogram-matching” because it involves no changes to the normal component of the field at the photospheric boundary. The method is illustrated by applying it to an observed force-free configuration whose MFR is modeled with our regularized Biot–Savart law method. We find that, in spite of the bipolar character of the external field, the MFR eruption is sustained by two reconnection processes. The first, which we refer to as breakthrough reconnection, is analogous to breakout reconnection in quadrupolar configurations. It occurs at a quasi-separator inside a current layer that wraps around the erupting MFR and is caused by the photospheric line-tying effect. The second process is the classical flare reconnection, which develops at the second quasi-separator inside a vertical current layer that is formed below the erupting MFR. Both reconnection processes work in tandem with the magnetic forces of the unstable MFR to propel it through the overlying ambient field, and their interplay may also be relevant for the thermal processes occurring in the plasma of solar flares. The considered example suggests that our method will be beneficial for both the modeling of observed eruptive events and theoretical studies of eruptions in idealized magnetic configurations.
A Novel RID Algorithm of Muon Trajectory Reconstruction in Water Cherenkov Detectors
Authors: Kaushal Neerav 
Published: September 2022

Abstract
Cosmic rays that strike the top of the Earth’s atmosphere generate a shower of secondary particles that move toward the surface with relativistic speeds. Water Cherenkov detectors (WCDs) on the ground can detect charged muons, which are one of the many particles generated in the shower, with the Cherenkov imaging technique. A large number of these muons travel in WCD tanks near the speed of light in a vacuum, faster than the speed of light in water, and so trigger isotropic Cherenkov radiation, which is detected by the photomultiplier tubes (PMTs) placed inside the tanks. When the radial component of the speed of the muon toward a PMT drops from superluminal to subluminal, the PMT records Cherenkov light from an optical phenomenon known as relativistic image doubling (RID), which causes two Cherenkov images of the same muon to appear suddenly, with both images moving in geometrically opposite directions on the original muon track. The quantities associated with the RID effect can be measured experimentally with a variety of detector types and can be used to find various points on the original trajectory of the muon. In this paper, a detailed study of reconstructing the trajectory of a muon entering a WCD using the RID technique has been presented. It is found that the measurements of standard RID observables enables a complete reconstruction of the trajectory of the muon to a high degree of accuracy with less than 1% error.