bluuebunny/crossref_metadata_2025_split huggingface dataset:
Pengembangan sistem manajemen baterai pada PLTS menggunakan on-off grid tie inverter
Authors: Sapto Prayogo  
Published: December 2021

Permasalahan pada Pembangkit Listrik Tenaga Surya (PLTS) yang menggunakan inverter jenis on/off grid tie inverter adalah tidak dilengkapi dengan mekanisme kontrol penyimpanan daya ke baterai. Dimana pada saat bekerja sebagai on grid inverter maka baterai seharusnya terlepas dari inverter hal ini ditujukan untuk menghindari baterai terjadi over discharge karena daya keluaran pada inverter saat on grid akan bekerja maksimum dengan adanya MPPT. Sementara pada saat off grid, baterai harus terhubung dengan inverter untuk menstabilkan daya keluaran inverter karena adanya fluktuasi radiasi matahari dan beban AC. Pada penelitian ini dikembangkan sistem manajemen baterai untuk mengatur mekanisme pengisian dan pembebanan baterai pada inverter jenis on/off grid. Sistem manajemen baterai akan mengatur mekanisme pengisian baterai pada saat bekerja sebagai on grid inverter dan mengatur interkoneksi ke inverter pada saat bekerja sebagai off grid inverter, khususnya untuk mengantisipasi kondisi over charge dan over discharge. Hasil pengujian menunjukkan efesiensi BCU sebesar 95,1% dan efesiensi inverter sebesar 94,8%. Waktu transisi yang diperlukan untuk berpindah dari kondisi off grid ke kondisi on grid selama 41,4 detik. Perpindahan interkoneksi baterai dengan rangkaian inverter ke rangkaian pengisian baterai tidak mengganggu kinerja rangkaian PLTS on/off grid.
Keywords: on grid, off grid, inverter, MPPT, baterai
Seaweed Farmers Perceptions of Children's Formal Education Level in Bulu-Bulu Village, Tonra District, Bone Regency
Authors: Maddatuang Maddatuang , Suprapta Suprapta , Winarti Wildi 
Published: December 2021

This research is a descriptive study that aims to: 1) Knowing the condition of formal education for the children of seaweed farmers in Bulu-Bulu Village. 2) Know how seaweed farmers' perceptions of the level of formal education of children in Bulu-Bulu Village, Tonra District, Bone Regency. 3) Knowing what factors influence the perceptions of seaweed farmers on the level of formal education of children in Bulu-Bulu Village. The population ini this study was 114 housedhold heads. The sampling technique used the Snowball Sampling technique with a sample size of 30 household heads. Data collection was carried out by means of observation, interviews, and documentation. Data analysis technique using descriptive statistical analysis techniques.The results of this study indicate that the most of the formal education conditions of the children of seaweed farmers in the village of Bulu-Bulu, Tonra subdistrict, are mostly still continuing their education at the primary and secondary levels. Perception of seaweed farmers on the level of formal education of children in Bulu-Bulu Village, Tonra District is quite good (positive). Seaweed farmers' perceptions of the level of formal education of children are influenced by factors such as education level, income level, and workload.
Adaptacje filmowe polskiej literatury młodzieżowej XXI wieku jako system kodów kulturowych
Authors: Gęborska Marlena 
Published: December 2021

W artykule przeanalizowano adaptacje filmowe polskiej literatury młodzieżowej wydanej w XXI w. oraz wskazano kody kulturowe charakterystyczne dla współczesnych, polskich produkcji skierowanych do młodego odbiorcy. Interesujące wydały się cechy utworów najchętniej adaptowanych oraz tendencje widoczne w filmowych adaptacjach rozumianych jako reinterpretacje książkowych pre-tekstów.
Zastosowano metodę analizy źródeł (materiału filmowego, serwisów streamingowych) oraz case study. Ponadto posłużono się elementami metody statystycznej w odniesieniu do dostępności adaptacji filmowych i ich popularności wśród młodych odbiorców. Badanie przeprowadzono techniką ankiety, narzędziem był elektroniczny kwestionariusz skierowany w pierwszym przypadku do grupy wiekowej 14–16 lat. Drugi kwestionariusz był adresowany do studentów i zawierał zestaw do zapisywania skojarzeń. Analiza materiału obaliła hipotezę badawczą, jakoby współcześnie w Polsce chętnie sięgano po utwory literackie dla młodzieży i adaptowano je na potrzeby filmów pełnometrażowych. Okazało się, że nieliczne wyjątki to przede wszystkim adaptacje gatunków fantasy i science fiction. Analiza kodów kulturowych pokazała, że tworzą one zestaw wzajemnie powiązanych znaczeń. Na gruncie polskich adaptacji w tym systemie dominują relacje rodzinne i przyjacielskie, dom rodzinny, podróże, zegary symbolizujące upływający czas.
Pengolahan Hasil Pertanian dalam Upaya Peningkatan Perekonomian Petani di Kabupaten Bintan
Authors: Rahmat Syahrul , Ikhsanudin Muhammad , Diani Rizky , Kusuma Yuda Febrianda , Putri Suadah , Ningrum Putri Ayu , Afrianti Afrianti , Prasetia Indra , Sari Nuwike Indah , Faina Faina , Annisa Nurul 
Published: December 2021

Abstrak
Sekalipun tidak menjadi andalan, Kabupaten Bintan memiliki potensi dalam sektor pertanian. Sejumlah masyarakat mengolah lahan pertanian secara kelompok maupun pribadi. Hasil pertanian tersebut biasanya langsung dijual mentah. Hal itu kemudian menjadi salah satu alasan untuk melakukan pengabdian pada beberapa titik di Bintan dengan sasaran para petani, seperti petani jagung, singkong dan pisang. Pengabdian ini membimbing petani untuk mengolah hasil perkebunan mereka sendiri sebelum dijual. Pengolahan hasil pertanian menjadi penganan merupakan salah satu upaya yang diharapkan mampu meningkatkan perekonomian masyarakat, sebab hasil pertanian yang sudah diolah akan memiliki nilai jual lebih tinggi dibanding dijual mentah. Pengabdian ini dilakukan dengan dengan menggunakan metode Asset Based Communities Development (ABCD). Masyarakat yang menjadi sasaran dalam pengabdian ini sudah mulai mengelola hasil pertanian mereka menjadi penganan dan memasarkan secara luring maupun daring. Mengembangkan lahan pertanian untuk beberapa komoditi serta mengolah hasil tersebut menjadi produk makan merupakan salah satu upaya yang dapat dilakukan masyarakat untuk meningkatkan perekonomian.

Abstract
Even tho it’s not a mainstay, Bintan Regency farming sector has a promising potential. A number of people cultivate agricultural land individually or in groups. These agricultural products are usually sold raw. This then became one of the reasons for carrying out community service at several points in Bintan with the target of farmers, such as corn, cassava and banana farmers. This service guides farmers to process their own plantation products before they are sold. The processing of agricultural products into snacks is one of the efforts that are expected to be able to improve the community's economy, because agricultural products that are processed will have a higher selling value than being sold raw. This service is carried out using the Asset Based Communities Development (ABCD) method. The people who have been targeted in this service have started to manage their agricultural products into snacks and market them offline and online. Developing agricultural land for several commodities and processing these products into food products is one of the efforts that can be made by the community to improve the economy
An Analysis of Pronunciation Errors In Speaking of 2nd Semester Students of English Educate Department Universitas Bhinneka PGRI
Authors: Lidyawaty Baiq Titis , Septiana Ayu Rizki 
Published: December 2021

In this study, researchers will examine students' problems in pronunciation errors in English and the causes of students' errors in English pronunciation. This study aims to determine the pronunciation errors and the causes of errors in pronunciation made by students in speaking English. This research is descriptive qualitative research that aims to describe students' pronunciation errors and the causes of students' pronunciation errors. The subjects of this study were second-semester students of the English language study program at the University of Bhinneka PGRI. The reason the researcher chooses this subject is the first subject that the researcher wants to examine and understand because there are some students who experience pronunciation errors and the researcher wants to know where the pronunciation errors are and what causes make their pronunciation errors. Based on the results of observations, the researchers found that students' problems in speaking English were in the vowel they were stamped. The results of the questionnaire that the researchers distributed from the entire 2nd-semester class, both class 2A and class 2B, totaling 44 students, received answers from 39 students. The results obtained from 10 interviews researchers can conclude that there are several causes of difficulty or pronunciation errors in semester 2 students at the Universitas Bhinneka PGRI including Mother Language and Personality.
Prácticas seguras en administración de medicamentos en un hospital de segundo nivel de atención
Authors: Ortega Barco María Alejandra , Marín Rodríguez Daniela 
Published: December 2021

RESUMEN
Las prácticas de administración segura de medicamentos hacen parte importante del compendio de actividades para resguardar la seguridad del paciente, por tanto, la búsqueda de un entorno seguro es una preocupación constante de las instituciones de salud, y la práctica de la administración de medicamentos es esencial para evitar errores de medicación. La medición de las prácticas del personal de enfermería respecto a la administración de medicamentos puede generar datos relevantes para la elaboración de estrategias más fidedignas de la necesidad institucional y en consecuencia disminuir notablemente la aparición de errores de medicación. Objetivo: Determinar el cumplimiento de prácticas en administración segura de medicamentos por parte del personal de enfermería de un hospital de segundo nivel de atención. Metodología: Estudio descriptivo transversal en el que se evaluó el grado de cumplimiento de prácticas de administración segura de medicamentos a través de la aplicación de dos listas de chequeo. Resultados: El ejercicio de prácticas de seguridad en administración de medicamentos en este estudio mostró un rendimiento del 61% en personal técnico auxiliar de enfermería y un 49% en profesionales de enfermería, con Prevalencia de no cumplimiento del 27,9% y 42,9%, respectivamente. Coeficiente de correlación de Spearman 0,71 en los resultados de las listas de chequeo. Conclusiones: El personal de enfermería, en este estudio, mostró cumplimiento de prácticas seguras en administración de medicamentos alrededor de la media de cumplimiento, con un rendimiento similar en ambos grupos del personal de enfermería y en ambas listas de chequeo.
Productos frontera. Metodología de clasificación en inspección farmacéutica como garantía de salud pública y buen gobierno.
Authors: Prieto Muñoz Bernardo , Vidal Miñana María del Carmen 
Published: December 2021

Fundamentos (Introducción y Objetivos): La expresión producto frontera se refiere a un producto difícil de clasificar administrativamente, por compartir características de dos o más categorías simultáneamente (alimento, medicamento, producto sanitario, cosmético y biocida).
El objetivo de este trabajo fue la elaboración de una metodología de clasificación de los productos frontera.
Métodos: Se trata de un estudio observacional descriptivo. La estrategia del análisis consistió en la revisión caso por caso en base de la definición completa de cada producto establecida en la legislación nacional y de la Unión Europea considerando los aspectos que diferencian a cada categoría.
Resultados: Los elementos clave diferenciadores fueron: a) el mecanismo de acción principal para productos sanitarios frontera con medicamentos; b) la finalidad y el mecanismo de acción para productos sanitarios, cosméticos, equipos de protección individual y juguetes; c) el lugar de acción para cosméticos frontera con alimentos; d) las características del producto y la acción principal y secundaria para cosméticos frontera con biocidas.
Conclusiones: Con este procedimiento se consiguió la detección de errores de clasificación o fraudes por la intención de obviar los trámites de autorizaciones más estrictas de los medicamentos respecto a alimentos, productos sanitarios y cosméticos cuya comercialización es más económica y sencilla constituyendo un problema prioritario de salud pública. Los medicamentos no son inocuos y pueden producir efectos perjudiciales de los que es necesario advertir.
TESS Asteroseismology of α Mensae: Benchmark Ages for a G7 Dwarf and Its M Dwarf Companion
Authors: Chontos Ashley , Huber Daniel , Berger Travis A. , Kjeldsen Hans , Serenelli Aldo M. , Silva Aguirre Victor , Ball Warrick H. , Basu Sarbani , Bedding Timothy R. , Chaplin William J. , Claytor Zachary R. , Corsaro Enrico , Garcia Rafael A. , Howell Steve B. , Lundkvist Mia S. , Mathur Savita , Metcalfe Travis S. , Nielsen Martin B. , Mian Joel Ong Jia , Çelik Orhan Zeynep , Örtel Sibel , Salama Maissa , Stassun Keivan G. , Townsend R. H. D. , van Saders Jennifer L. , Winther Mark , Yildiz Mutlu , Butler R. Paul , Tinney C. G. , Wittenmyer Robert A. 
Published: December 2021

Abstract
Asteroseismology of bright stars has become increasingly important as a method to determine the fundamental properties (in particular ages) of stars. The Kepler Space Telescope initiated a revolution by detecting oscillations in more than 500 main-sequence and subgiant stars. However, most Kepler stars are faint and therefore have limited constraints from independent methods such as long-baseline interferometry. Here we present the discovery of solar-like oscillations in α Men A, a naked-eye (V = 5.1) G7 dwarf in TESS’s southern continuous viewing zone. Using a combination of astrometry, spectroscopy, and asteroseismology, we precisely characterize the solar analog α Men A (T
eff = 5569 ± 62 K, R
⋆ = 0.960 ± 0.016 R
⊙, M
⋆ = 0.964 ± 0.045 M
⊙). To characterize the fully convective M dwarf companion, we derive empirical relations to estimate mass, radius, and temperature given the absolute Gaia magnitude and metallicity, yielding M
⋆ = 0.169 ± 0.006 M
⊙, R
⋆ = 0.19 ± 0.01 R
⊙, and T
eff = 3054 ± 44 K. Our asteroseismic age of 6.2 ± 1.4 (stat) ± 0.6 (sys) Gyr for the primary places α Men B within a small population of M dwarfs with precisely measured ages. We combined multiple ground-based spectroscopy surveys to reveal an activity cycle of P = 13.1 ± 1.1 yr for α Men A, a period similar to that observed in the Sun. We used different gyrochronology models with the asteroseismic age to estimate a rotation period of ∼30 days for the primary. Alpha Men A is now the closest (d = 10 pc) solar analog with a precise asteroseismic age from space-based photometry, making it a prime target for next-generation direct-imaging missions searching for true Earth analogs.
Far-ultraviolet Spectra of Main-sequence O Stars at Extremely Low Metallicity
Authors: Telford O. Grace , Chisholm John , McQuinn Kristen B. W. , Berg Danielle A. 
Published: December 2021

Abstract
Metal-poor massive stars dominate the light we observe from star-forming dwarf galaxies and may have produced the bulk of energetic photons that reionized the universe at high redshift. Yet, the rarity of observations of individual O stars below the 20% solar metallicity (Z
⊙) of the Small Magellanic Cloud (SMC) hampers our ability to model the ionizing fluxes of metal-poor stellar populations. We present new Hubble Space Telescope far-ultraviolet (FUV) spectra of three O-dwarf stars in the galaxies Leo P (3% Z
⊙), Sextans A (6% Z
⊙), and WLM (14% Z
⊙). We quantify equivalent widths of photospheric metal lines and strengths of wind-sensitive features, confirming that both correlate with metallicity. We infer the stars’ fundamental properties by modeling their FUV through near-infrared spectral energy distributions and identify stars in the SMC with similar properties to each of our targets. Comparing to the FUV spectra of the SMC analogs suggests that (1) the star in WLM has an SMC-like metallicity, and (2) the most metal-poor star in Leo P is driving a much weaker stellar wind than its SMC counterparts. We measure projected rotation speeds and find that the two most metal-poor stars have high

v

sin

(
i
)

≥ 290 km s−1, and estimate just a 3%–6% probability of finding two fast rotators if the metal-poor stars are drawn from the same

v

sin

(
i
)

distribution observed for O dwarfs in the SMC. These observations suggest that models should include the impact of rotation and weak winds on ionizing flux to accurately interpret observations of metal-poor galaxies in both the near and distant universe.
Cosmic Evolution of Barred Galaxies up to z ∼ 0.84
Authors: Kim Taehyun , Athanassoula E. , Sheth Kartik , Bosma Albert , Park Myeong-Gu , Lee Yun Hee , Ann Hong Bae 
Published: December 2021

Abstract
We explore the cosmic evolution of the bar length, strength, and light deficit around the bar for 379 barred galaxies at 0.2 < z ≤ 0.835 using F814W images from the COSMOS survey. Our sample covers galaxies with stellar masses

10.0
≤
log
(

M

*

/

M

⊙

)
≤
11.4

and various Hubble types. The bar length is strongly related to the galaxy mass, the disk scale length (h), R
50, and R
90, where the last two are the radii containing 50% and 90% of total stellar mass, respectively. Bar length remains almost constant, suggesting little or no evolution in bar length over the last 7 Gyr. The normalized bar lengths (R
bar/h, R
bar/R
50, and R
bar/R
90) do not show any clear cosmic evolution. Also, the bar strength (A
2 and Q

b
) and the light deficit around the bar reveal little or no cosmic evolution. The constancy of the normalized bar lengths over cosmic time implies that the evolution of bars and of disks is strongly linked over all times. We discuss our results in the framework of predictions from numerical simulations. We conclude there is no strong disagreement between our results and up-to-date simulations.
Tracking the Source of Solar Type II Bursts through Comparisons of Simulations and Radio Data
Authors: Hegedus Alexander M. , Manchester Ward B. , Kasper Justin C. 
Published: December 2021

Abstract
The most intense solar energetic particle events are produced by coronal mass ejections (CMEs) accompanied by intense type II radio bursts below 15 MHz. Understanding where these type II bursts are generated relative to an erupting CME would reveal important details of particle acceleration near the Sun, but the emission cannot be imaged on Earth due to distortion from its ionosphere. Here, a technique is introduced to identify the likely source location of the emission by comparing the dynamic spectrum observed from a single spacecraft against synthetic spectra made from hypothesized emitting regions within a magnetohydrodynamic (MHD) numerical simulation of the recreated CME. The radio-loud 2005 May 13 CME was chosen as a test case, with Wind/WAVES radio data being used to frame the inverse problem of finding the most likely progression of burst locations. An MHD recreation is used to create synthetic spectra for various hypothesized burst locations. A framework is developed to score these synthetic spectra by their similarity to the type II frequency profile derived from the Wind/WAVES data. Simulated areas with 4× enhanced entropy and elevated de Hoffmann–Teller velocities are found to produce synthetic spectra similar to spacecraft observations. A geometrical analysis suggests the eastern edge of the entropy-derived shock around (−30°, 0°) was emitting in the first hour of the event before falling off, and the western/southwestern edge of the shock centered around (6°, −12°) was a dominant area of radio emission for the 2 hr of simulation data out to 20 solar radii.
If Loud Aliens Explain Human Earliness, Quiet Aliens Are Also Rare
Authors: Hanson Robin , Martin Daniel , McCarter Calvin , Paulson Jonathan 
Published: December 2021

Abstract
If life on Earth had to achieve n “hard steps“ to reach humanity's level, then the chance of this event rose as time to the nth power. Integrating this over habitable star formation and planet lifetime distributions predicts >99% of advanced life appears after today, unless n < 3 and max planet duration <50 Gyr. That is, we seem early. We offer this explanation: a deadline is set by loud aliens who are born according to a hard steps power law, expand at a common rate, change their volume appearances, and prevent advanced life like us from appearing in their volumes. Quiet aliens, in contrast, are much harder to see. We fit this three-parameter model of loud aliens to data: (1) birth power from the number of hard steps seen in Earth’s history, (2) birth constant by assuming a inform distribution over our rank among loud alien birth dates, and (3) expansion speed from our not seeing alien volumes in our sky. We estimate that loud alien civilizations now control 40%–50% of universe volume, each will later control ∼ 105–3 × 107 galaxies, and we could meet them in ∼200 Myr–2 Gyr. If loud aliens arise from quiet ones, a depressingly low transition chance (<∼10−4 ) is required to expect that even one other quiet alien civilization has ever been active in our galaxy. Which seems to be bad news for the Search for Extraterrestrial Intelligence. But perhaps alien volume appearances are subtle, and their expansion speed lower, in which case we predict many long circular arcs to find in our sky.
Acoustic Wave Properties in Footpoints of Coronal Loops in 3D MHD Simulations
Authors: Riedl Julia M. , Van Doorsselaere Tom , Reale Fabio , Goossens Marcel , Petralia Antonino , Pagano Paolo 
Published: December 2021

Abstract
Acoustic waves excited in the photosphere and below might play an integral part in the heating of the solar chromosphere and corona. However, it is yet not fully clear how much of the initially acoustic wave flux reaches the corona and in what form. We investigate the wave propagation, damping, transmission, and conversion in the lower layers of the solar atmosphere using 3D numerical MHD simulations. A model of a gravitationally stratified expanding straight coronal loop, stretching from photosphere to photosphere, is perturbed at one footpoint by an acoustic driver with a period of 370 s. For this period, acoustic cutoff regions are present below the transition region (TR). About 2% of the initial energy from the driver reaches the corona. The shape of the cutoff regions and the height of the TR show a highly dynamic behavior. Taking only the driven waves into account, the waves have a propagating nature below and above the cutoff region, but are standing and evanescent within the cutoff region. Studying the driven waves together with the background motions in the model reveals standing waves between the cutoff region and the TR. These standing waves cause an oscillation of the TR height. In addition, fast or leaky sausage body-like waves might have been excited close to the base of the loop. These waves then possibly convert to fast or leaky sausage surface-like waves at the top of the main cutoff region, followed by a conversion to slow sausage body-like waves around the TR.