bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improved performance of strain sensors constructed from highly crystalline graphene with nanospacer
Authors: Xu Zizhao , Himura Yuna , Ishiguro Chikako , Inoue Taiki , Nishina Yuta , Kobayashi Yoshihiro 
Published: November 2023

Abstract
Graphene shows promise as an alternative material for strain sensors due to its excellent properties and could overcome the limitations of conventional metal sensors. However, current graphene-based strain sensors are fabricated from chemically reduced graphene oxide (rGO) and suffer from low linearity and large hysteresis in the sensor response as well as high initial resistance. These issues are caused by functional groups and defects remaining on the rGO. Herein, highly crystalline rGO is employed for the fabrication of the strain sensor. Porous rGO sponge with low defect density is prepared in bulk scale via the ethanol-associated thermal process at ultra-high temperature. The obtained rGO sensor exhibits improved linearity, low initial resistance, and very small hysteresis owing to the high crystallinity of the rGO. The composite of rGO with nano-diamond, which has the role of a nanospacer to separate the rGO layers, is found to be highly effective in enhancing the sensitivity.
Polarized terahertz electromagnetic-wave radiation from cuprate superconductor Bi2212 mesa structures
Authors: Elarabi Asem , Saito Yoshito , Asai Hidehiro , Kobayashi Ryota , Hayama Ken , Maeda Keiichiro , Fujita Shuma , Yoshioka Yusuke , Takano Yoshihiko , Tsujimoto Manabu , Kakeya Itsuhiro 
Published: November 2023

Abstract
Polarized terahertz (THz) sources are important components in THz technologies. This paper highlights and discusses recent progress and measurement methods in the monolithic generation of polarized THz radiation using intrinsic Josephson junction oscillators made of high-T

c
superconductors. The polarized radiation is generated from three mesa designs: truncated-edge square, notched cylindrical, and rectangular mesa structures. The polarization control depends on the excitation of two orthogonal TM modes in these mesas, comprising stacked intrinsic Josephson junctions in single crystalline Bi2Sr2CaCu2O8+δ
. This method maintains a high output intensity and low axial ratios while avoiding the signal loss associated with external polarimetric modulators prevalent in the THz frequency range. Moreover, it demonstrates the manipulation of terahertz wave helicity by adjusting the current injection position, with experiments substantiating the device’s capability to switch between left-handed and right-handed elliptical polarization at designated frequencies.
Self-concept Perempuan Pekerja Pemulung (Studi Kasus Perempuan Pekerja Pemulung Kota Harapan Indah)
Authors: Reniati Isni , Setiawan Rizki , Hayat Nurul 
Published: November 2023

Perempuan pekerja pemulung di Kota Harapan Indah, meskipun menghadapi stigma sosial dan diskriminasi sosial masih tetap dapat menunjukkan ketangguhan dalam mengatasi tantangan dan masalah dalam pekerjaanya. Konsep diri perempuan pekerja pemulung terbentuk melalui persepsi sosial dan diri, hubungan sosial, dan pengalaman diri yang pada akhirnya menjadi dasar pemahaman bagaimana mereka beradaptasi terhadap lingkungan yang penuh tantangan. Penelitian ini bertujuan untuk mengetahui dan mendeskripsikan bagaimana self-concept perempuan pekerja pemulung. Penelitian ini menggunakan pendekatan kualitatif dengan metode studi kasus. Data penelitian dikumpulkan melalui observasi partisipan, wawancara semi-terstruktur, dan dokumentasi. Hasil penelitian menunjukkan bahwa perempuan pekerja pemulung di Kota Harapan Indah mengalami persepsi sosial yang seringkali bersifat negatif dari masyarakat terkait pekerjaannya. Stigma sosial ini mempengaruhi pembentukan konsep diri dalam imajinasi bayangan penampilan diri, penilaian dan perasaan emosional. Selain itu, interaksi sosial, baik dengan keluarga, rekan sesama pemulung dan masyarakat sekitar memiliki peranan penting dalam membentuk konsep diri perempuan pekerja pemulung. Umpan balik positif dari lingkungan sosial dapat meningkatkan rasa percaya diri dan penerimaan diri perempuan pemulung. Penelitian ini menunjukkan bahwa konsep diri perempuan pemulung dipengaruhi oleh persepsi masyarakat, hubungan sosial dan pengalaman pribadi. Citra diri ini merupakan hasil interaksi yang kompleks antara individu dengan lingkungannya. Kesimpulan dalam penelitian ini menunjukkan bagaimana persepsi sosial dan diri, hubungan sosial, dan pengalaman diri memiliki peranan yang signifikan dalam membentuk konsep diri perempuan pekerja pemulung.
Measuring Islamic Banking Performance Using Maqashid Shariah Index and RGEC: The Malaysian and Indonesian Islamic Banking
Authors: Hidayat Ahmad Agus , Qathrunnada Elissa , Samsuri Andriani 
Published: November 2023

Islamic banking in Malaysia and Indonesia ranks first (Malaysia) and third (Indonesia) based on the top Islamic financial development indicator (IFDI) countries. However, this great potential has not been matched by a comprehensive performance measurement covering social and sharia aspects as well as the health of Islamic banks. Therefore, this study aims to measure the performance of Islamic banks through the Maqashid Syariah Index and RGEC approaches using quantitative methods. The results showed that through the MSI approach, Malaysian Islamic banking is superior to Indonesian Islamic banking in the aspects of justice and benefit. Through the RGEC approach, the NPF, ROA, FDR, and CAR ratios show that Malaysian Islamic banking is superior. The implications of this research can be useful for Islamic banking in developing the right strategy in order to improve sharia and social performance and bank health.
PENGARUH MODEL PEMBELAJARAN POE (PREDICT-OBSERVE-EXPLAIN) TERHADAP HASIL BELAJAR IPA SISWA KELAS V SD
Authors: Adeulliah Novie , Murniviyanti Liza , Heldayani Eni 
Published: November 2023

ABSTRACT
This study aims to determine the effect of the POE (Predict-Observe-Explain) learning model on science learning outcomes in grade V elementary school students. The formulation of the problem in this study is whether there is an influence on the use of the POE (Predict-Observe-Explain) learning model on science learning outcomes in grade V students of SD Negeri 17 Palembang for the 2023/2024 school year. This study used an experimental method with a True Experimental Design research design in the form of Posttest-Only Control Group. The population in this study is all grade V students of SD Negeri 17 Palembang for the 2023/2024 school year while the sample in this study is class V.A and V.B students, where class V.A students as a control class totaled 24 students and class V.B as an experimental class totaled 24 students. The research instrument used is a test question in the form of an essay question of 10 questions with the material of Animal Motion Organs. Based on data from posttest research results in both classes, it was found that the average value of the experimental class was greater than the control class, which was 80,946 > 63,437, besides that through hypothesis testing using the Mann Whitney U test obtained asymp. sig values. (2-tailed) in the posttest results of both classes is 0.003 with α = 0.05, so 0.003 < 0.05, it can be concluded that Ho was rejected and Ha was accepted, it can be concluded that there is an influence of the POE (Predict-Observe-Explain) learning model on science learning outcomes in grade V students of SD Negeri 17 Palembang.
Keywords: POE Learning Model, Science Learning Outcomes
PENERAPAN METODE MEMBACA NYARING UNTUK MENINGKATKAN KEMAMPUAN MEMBACA SISWA KELAS 1 SD NEGERI PURWAKARTA I
Authors: Alifa Husnussyifa  , Siti Rokmanah  , Alifa Husnussyifa  
Published: November 2023

Abstract
Reading ability is a child's ability to recognize letters and words, then connect them with sounds, and understand the meaning of the writing they read, which begins with the ability to hear the letters correctly and precisely. The reading aloud method or reading aloud is an activity carried out to improve reading and listening skills. Because with this method all students in the class will pay attention to the reading material and it can be a stimulant for students. This study used descriptive qualitative method. The qualitative descriptive method is a form of research aimed at describing or illustrating existing phenomena, both natural phenomena and human engineering. The data collection techniques used were interviews, observation and documentation, with the subjects being class I students at SD Negeri Purwakarta I, totaling 33 students. The results of this research show that applying the reading aloud method can effectively improve students' reading abilities.
Keywords: Reading Ability, Reading Aloud Method
Integrating word-form representations with global similarity computation in recognition memory
Authors: Osth Adam F. , Zhang Lyulei 
Published: November 2023

AbstractIn recognition memory, retrieval is thought to occur by computing the global similarity of the probe to each of the studied items. However, to date, very few global similarity models have employed perceptual representations of words despite the fact that false recognition errors for perceptually similar words have consistently been observed. In this work, we integrate representations of letter strings from the reading literature with global similarity models. Specifically, we employed models of absolute letter position (slot codes and overlap models) and relative letter position (closed and open bigrams). Each of the representations was used to construct a global similarity model that made contact with responses and RTs at the individual word level using the linear ballistic accumulator (LBA) model (Brown & Heathcote Cognitive Psychology, 57 , 153–178, 2008). Relative position models were favored in three of the four datasets and parameter estimates suggested additional influence of the initial letters in the words. When semantic representations from the word2vec model were incorporated into the models, results indicated that orthographic representations were almost equally consequential as semantic representations in determining inter-item similarity and false recognition errors, which undermines previous suggestions that long-term memory is primarily driven by semantic representations. The model was able to modestly capture individual word variability in the false alarm rates, but there were limitations in capturing variability in the hit rates that suggest that the underlying representations require extension.
CRIMES CIBERNÉTICOS: FAKES NEWS E SEUS EFEITOS NA CONJUNTURA POLÍTICA BRASILEIRA
Authors: Dos Anjos Cecote Junior Leonardo Laerte , Lima Rogério Gonçalves 
Published: November 2023

RESUMO O presente artigo tem como objetivo geral, analisar a perspectiva do fenômeno das fake news, trazer seu conceito e apresentar suas consequências no âmbito político. Relativo a esse, os objetivos específicos serão analisar o contexto histórico e social da internet, além de buscar entender ainda como o seu uso pode ser um meio para a prática de crimes, especialmente os ligados à propagação de notícias falsas; Descrever acerca no processo eleitoral no Brasil; refletir sobre a incidência dessa recente modalidade de crime virtual, as fakes news, além de verificar como tem sido a aplicação da legislação penal em face dessa nova forma de criminalidade, quando ocorrida para fins prejudiciais no âmbito político democrático no Brasil. Tendo em vista que o número de condutas como esta, tem crescido sistematicamente no Brasil, fazendo relação com todo contexto histórico em contraste com a sociedade atual. Nos dias atuais o Brasil tem sido um dos países que mais se destaca em casos de fake news, levando debates no mundo digital e jornalísticos. Ademais, a presente pesquisa não contará com pesquisa de campo, no entanto, terá caráter documental e bibliográfico. Ademais, levantadas as considerações finais a respeito da metodologia, a verdadeira intenção é evidenciar as técnicas de elaboração e formatação deste projeto científico, esclarecendo conceitos utilizados, sua aplicação e sua fundamentação, fazendo uso de teorias e estudos. Buscando assim um nível conceitual aprofundado e informativo a sociedade.
Palavras-chave: âmbito político; criminalidade; fake news;
The Impact of the Free-floating Planet Mass Function on the Event Rate for Accurate Microlensing Parallax Determination: Application to Euclid and Roman Parallax Observation
Authors: Ban M. 
Published: November 2023

Abstract
A microlensing event is mainly used to search for free-floating planets (FFPs). To estimate the FFP mass and distance via the microlensing effect, a microlensing parallax is one of the key parameters. A short duration of FFP microlensing makes it difficult to yield a parallax by the observer’s motion at a recognizable level, so the FFP microlensing parallax is expected on the simultaneous observation by multiple telescopes. Here, we approach the FFP detection by considering a variation in the FFP mass functions and the event rate of accurately measured microlensing parallaxes. We used our FFP microlensing simulator assuming a parallax observation between upcoming space-based missions (Euclid and Roman) with full kinematics. As a result, we confirmed that the event rate of accurately measured microlensing parallaxes (i.e., within a factor of 2 uncertainty) does not simply follow the number of FFPs at a given mass but the ratio of the FFP population per star. This is because the population ratio determines the optical depth for a given mass and potential sources. In addition, we found that the probability of the event that can estimate the FFP mass and distance within a factor of 2 is not so high: ∼40% of Earth-mass, ∼16% of Neptune-mass, and ∼4% of Jupiter-mass FFP events under our criteria. The probability can be improved by some technical approach such as using high cadence and observation in parallax of more than two observers.
Early-growing Supermassive Black Holes Strengthen Bars and Boxy/Peanut Bulges
Authors: Wheeler Vance , Valluri Monica , Beraldo e Silva Leandro , Dattathri Shashank , Debattista Victor P. 
Published: November 2023

Abstract
Using N-body simulations, we explore the effects of growing a supermassive black hole (SMBH) prior to or during the formation of a stellar bar. Keeping the final mass and growth rate of the SMBH fixed, we show that if it is introduced before or while the bar is still growing, the SMBH does not cause a decrease in bar amplitude. Rather, in most cases, it is strengthened. In addition, an early-growing SMBH always either decreases the buckling amplitude, delays buckling, or both. This weakening of buckling is caused by an increase in the disk vertical velocity dispersion at radii well beyond the nominal black hole sphere of influence. While we find considerable stochasticity and sensitivity to initial conditions, the only case where the SMBH causes a decrease in bar amplitude is when it is introduced after the bar has attained a steady state. In this case, we confirm previous findings that the decrease in bar strength is a result of scattering of bar-supporting orbits with small pericenter radii. By heating the inner disk both radially and vertically, an early-growing SMBH increases the fraction of stars that can be captured by the inner Lindblad resonance (ILR) and the vertical ILR, thereby strengthening both the bar and the boxy-peanut-shaped bulge. Using orbital frequency analysis of star particles, we show that when an SMBH is introduced early and the bar forms around it, the bar is populated by different families of regular bar-supporting orbits than when the bar forms without an SMBH.
The Principal Component Analysis Filtering Method for an Unbiased Spectral Survey of Complex Organic Molecules
Authors: Yun Hyeong-Sik , Lee Jeong-Eun 
Published: November 2023

Abstract
A variety of interstellar complex organic molecules (COMs) have been detected in various physical conditions. However, in the protostellar and protoplanetary environments, their complex kinematics make line profiles blend together and the line strength of weak lines weaker. In this paper, we utilize the principal component analysis technique to develop a filtering method that can extract COM spectra from the main kinematic component associated with COM emission and increase the signal-to-noise ratio (S/N) of spectra. This filtering method corrects non-Gaussian line profiles caused by the kinematics. For this development, we adopt the ALMA BAND 6 spectral survey data of V883 Ori, an eruptive young star with a Keplerian disk. A filter was, first, created using 34 strong and well-isolated COM lines and then applied to the entire spectral range of the data set. The first principal component (PC1) describes the most common emission structure of the selected lines, which is confined within the water sublimation radius (∼0.″3) in the Keplerian disk of V883 Ori. Using this PC1 filter, we extracted high-S/N kinematics-corrected spectra of V883 Ori over the entire spectral coverage of ∼50 GHz. The PC1-filtering method reduces the noise by a factor of ∼2 compared to the average spectra over the COM emission region. One important advantage of this PC1-filtering method over the previously developed matched-filtering method is the ability to preserve the original integrated intensities of COM lines.
Modeling the Formation and Evolution of Solar Wind Microstreams: From Coronal Plumes to Propagating Alfvénic Velocity Spikes
Authors: Gannouni Bahaeddine , Réville Victor , Rouillard Alexis P. 
Published: November 2023

Abstract
We investigate the origin of mesoscale structures in the solar wind called microstreams, defined as enhancements in the solar wind speed and temperature that last several hours. They were first clearly detected in Helios and Ulysses solar wind data and are now omnipresent in the “young” solar wind measured by the Parker Solar Probe and Solar Orbiter. These recent data reveal that microstreams transport a profusion of Alfvénic perturbations in the form of velocity spikes and magnetic switchbacks. In this study, we use a very-high-resolution 2.5D MHD model of the corona and the solar wind to simulate the emergence of magnetic bipoles interacting with the preexisting ambient corona and the creation of jets that become microstreams propagating in the solar wind. Our high-resolution simulations reach sufficiently high Lundquist numbers that capture the tearing mode instability that develops in the reconnection region and produces plasmoids released with the jet into the solar wind. Our domain runs from the lower corona to 20 R
⊙, which allows us to track the formation process of plasmoids and their evolution into Alfvénic velocity spikes. We obtain perturbed solar wind flows lasting several hours with velocity spikes occurring at characteristic periodicities of about 19 minutes. We retrieve several properties of the microstreams measured in the pristine solar wind by the Parker Solar Probe, namely an increase in wind velocity of about 100 km s−1 during a stream's passage together with superposed velocity spikes of also about 100 km s−1 released into the solar wind.
Magellanic System Stars Identified in SMACS J0723.3-7327 James Webb Space Telescope Early Release Observations Images
Authors: Summers Jake , Windhorst Rogier A. , Cohen Seth H. , Jansen Rolf A. , Carleton Timothy , Kamieneski Patrick S. , Holwerda Benne W. , Conselice Christopher J. , Adams Nathan J. , Frye Brenda L. , Diego Jose M. , Willmer Christopher N. A. , Ortiz Rafael , Cheng Cheng , Pigarelli Alex , Robotham Aaron , D’Silva Jordan C. J. , Tompkins Scott , Driver Simon P. , Yan Haojing , Coe Dan , Grogin Norman , Koekemoer Anton M. , Marshall Madeline A. , Pirzkal Nor , Ryan Russell E. 
Published: November 2023

Abstract
We identify 71 distant stars in James Webb Space Telescope/NIRCam early release observations (ERO) images of the field of galaxy cluster SMACS J0723.3-7327 (SMACS 0723). Given the relatively small (∼10°) angular separation between SMACS 0723 and the Large Magellanic Cloud (LMC), it is likely that these stars are associated with the LMC outskirts or the Leading Arm. This is further bolstered by a spectral energy distribution (SED) analysis, which suggests an excess of stars at a physical distance of 40–100 kpc, consistent with being associated with or located behind the Magellanic system. In particular, we find that the overall surface density of stars brighter than 27.0 mag in the field of SMACS 0723 is ∼2.3 times that of stars in a blank field with similar Galactic latitude (the North Ecliptic Pole Time Domain Field), and that the density of stars in the SMACS 0723 field with SED-derived distances consistent with the Magellanic system is ∼6.1 times larger than that of the blank field. The candidate stars at these distances are consistent with a stellar population at the same distance modulus with [Fe/H] = −1.0 and an age of ∼5.0 Gyr. On the assumption that all of the 71 stars are associated with the LMC, then the stellar density of the LMC at the location of the SMACS 0723 field is ∼740 stars kpc−3, which helps trace the density of stars in the LMC outskirts.
Searching for Novel Chemistry in Exoplanetary Atmospheres Using Machine Learning for Anomaly Detection
Authors: Forestano Roy T. , Matchev Konstantin T. , Matcheva Katia , Unlu Eyup B. 
Published: November 2023

Abstract
The next generation of telescopes will yield a substantial increase in the availability of high-quality spectroscopic data for thousands of exoplanets. The sheer volume of data and number of planets to be analyzed greatly motivate the development of new, fast, and efficient methods for flagging interesting planets for reobservation and detailed analysis. We advocate the application of machine learning (ML) techniques for anomaly (novelty) detection to exoplanet transit spectra, with the goal of identifying planets with unusual chemical composition and even searching for unknown biosignatures. We successfully demonstrate the feasibility of two popular anomaly detection methods (local outlier factor and one-class support vector machine) on a large public database of synthetic spectra. We consider several test cases, each with different levels of instrumental noise. In each case, we use receiver operating characteristic curves to quantify and compare the performance of the two ML techniques.
Asteroseismic Study of KUV03442+0719 with Parallax Constraints
Authors: Bischoff-Kim Agnes 
Published: November 2023

Abstract
Hydrogen atmosphere white dwarf KUV03442+0719 was first reported as a pulsator by Gianninas et al. in 2006. Follow-up campaigns by Su et al. revealed more periods. Some spectroscopic results suggest that KUV03442+0719 has a slightly below-average mass and an effective temperature of 11,000 K. However, Gaia data (parallax and magnitude) suggest that it may be a low-mass white dwarf. Such an object would have a helium core. We perform asteroseismic fitting of KUV03442+0719, modeling it both as a carbon/oxygen normal mass white dwarf, and a helium-core low-mass white dwarf. To perform the study, we perform a grid search with WDEC models, refined by simplex minimization of the best fits. Both analyses result in best-fit models that are comparable in terms of quality of fit. More pulsation data would be required to allow us to distinguish between the two scenarios. We present and contrast our results with expectations from stellar evolution. We also provide analytic formulae for a temperature-dependent mass–radius relationship for helium-core white dwarfs.