bluuebunny/crossref_metadata_2025_split huggingface dataset:
Active multi-mode interferometer semiconductor optical amplifier on quantum dots toward high saturated output power under high temperature
Authors: Fan Zhiyuan , Hinokuma Yasuhiro , Jiang Haisong , Hamamoto Kiichi 
Published: April 2022

Abstract
A semiconductor optical amplifier (SOA) is wildly used as gain media in a photonic integrated circuit, as it is integrable with various devices, including wavelength filter, on the same wafer. Quantum dots (QD) have been known to realize high-temperature operation without using a thermo-cooler, the saturated output power was not high due to the limited density of state in QD. To realize high saturated output power under high temperatures, we have exploited the active multi-mode interferometer (active-MMI) configuration on QD SOA. We fabricated active-MMI SOA using a 1.31 μm InAs/GaAs QD active layer with the design of approximately 5 times larger footprint compared to a single stripe, whereas it holds regular single transverse mode output. As a result, a significant improvement of 15 dB saturated output power at 75 °C was substantiated successfully.
Innovación ambiental municipal participativa, entre los sectores ambiente, educación y salud del municipio de Soracá, Boyacá, Colombia, en el marco de los objetivos del desarrollo sostenible. ODS 3.
Authors: López Guarín Lina Yised , Pinilla Moscoso Clara Inés 
Published: April 2022

La investigación buscó dar solución al problema socio ambiental centrado en dificultades en la gestión pública, en el manejo e integración de actores institucionales y participativos encaminados a la protección de los recursos naturales y de la salud humana, en articulación con los programas y proyectos, entre los sectores salud, ambiente y educación.
El objetivo fue, formular una propuesta educativa ambiental como parte de la Gestión Ambiental Municipal, que interrelaciono los componentes Salud, ambiente y educación para promover comportamientos ambientalmente saludables, que contribuya al cuidado y protección de los recursos naturales y de la salud de la población del municipio de Socará -Boyacá.
Metodología se basó en una investigación descriptiva con método socio crítico, aplicada con poblaciones del área rural y urbana integrada por actores públicos, privados y comunitarios. Los instrumentos de recopilación de información relacionaron la implementación de talleres participativos, centrados en el conocimiento, percepción, cartografía social, encuestas, árbol del problema y árbol de objetivos.
Los resultados se organizaron en 3 categorías sistematizadas, en A; técnica de diálogo y dinámica de grupo con talleres de percepción y conocimiento, de expectativas de participantes, B: manejo de los recursos naturales y del espacio con taller de Cartografía Social, C: diagnóstico de la problemática ambiental y soluciones, con Taller: priorización de los problemas ambientales, soluciones educativas aportadas por el alcalde, instituciones educativas y comunidad que retroalimentó la propuesta educativa ambiental liderada por los sectores de salud, ambiente y educación, bajo una gestión integral, participativa con la comunidad y gobierno local, en el marco del Sistema de Gestión Ambiental Municipal (SIGAM).
Conclusión: Los procesos participativos en educación ambiental, articulados con la gestión ambiental municipal conllevan a fortalecer la cultura ambiental local y la construcción de comunidades saludables, empoderadas en las relaciones armónicas entre las dimensiones educación, salud y ambiente. Reto. Se visiona que el municipio de Soracá gestione la propuesta educativa ambiental y establezca vínculos con los procesos de gestión ambiental municipal, entre los sectores de salud, ambiente y educación con la asignación de recursos (económicos, humanos y de comunicación), conducentes a construir un municipio saludable en el marco del objetivo 3 de los objetivos del desarrollo sostenible ODS.
PENGEMBANGAN KEMASAN DAN STRATEGI PEMASARAN “DUMILAH COKELAT”
Authors: Hariyani Diyah Santi , Hatmawan Aglis Andhita , Apriyanti Apriyanti 
Published: April 2022

UMKM ini bergerak pada bidang pembuatan cokelat yang bernama “Dumilah Cokelat” yang terletak di Kabupaten Madiun lebih tepatnya di Desa Kare. Tujuan kegiatan pengabdian masyarakat ini adalah memperkenalkan kepada masyarakat umum pembaruan logo dan kemasan, melatih masyarakat menggunakan media sosial guna mengenalkan ke konsumen yang luas. Metode yang digunakan adalah melakukan sosialisasi kepada Pemerintah Desa Kare dan industri mitra, melatih dan mendampingi mitra membuat template sosial media yang efisien dan efektif, melatih dan mendampingi mitra membut desain, mengembangkan desain cokelat dumilah, melakukan monitroing dan evaluasi. Hasil yang dicapai adalah mitra mengenali dan terampil membuat konten sosial media yang efisien dan efektif, mitra mengenali dan terampil membuat desain, mengembangkan desain kedepannya
A SEMIOTIC ANALYSIS ON ICON, INDEX, AND SYMBOL IN GET OUT MOVIE
Authors: Baharsyah Norman , Ardayati Ardayati , Triyogo Agus 
Published: April 2022

The problem of this study was â€What are the icons, indexes, and symbols in Get OutÂ movie?â€. There were primary sources and secondary sources in this study. The primary source used in this study was Get Out movie while the secondary sources were several books, journals, and articles to support this study. The objective of this study was to describe the icons, indexes, and symbols in Get Out Movie by using Charles Peirce's theory. This study used descriptive qualitative research. In collecting the data, the writer used library research, in which the writer went to find desirable references consisted of books, journals, and articles. In analyzing the data, the writer identified and classified the data first, then the writer did some reduction to the data. The writer only chose relevant data in several key scenes in the movie which were contributive to the plot and removed the redundant and unnecessary ones. After conducting the study, the writer found out that there were thirty signs in Get Out movie. The result showed that the thirty signs found in the movie were classified into three icons, twenty indexes, and seven symbols.
STUDENTS’ PERCEPTION ON THE USE OF ENGLISH SUBTITLE ON ZOOM DURING ONLINE LEARNING PROCESS
Authors: Maulidyah Difa Salsa 
Published: April 2022

The COVID-19 pandemic has forced pre-service teachers to implement teaching online for their teaching practice program. There were problems the pre-service teachers faced such as signal problem, difficulties in communicating with students because of the difference of mother tongue, and the students lack in technology skills. The difference of students’ mother tongue with their pre-service teacher also made it difficult for the students to understand the material during the online learning process. In order to overcome the problems, the researcher who also tagged along as the pre-service teacher, applied subtitles on the Zoom application to help students understand the materials during learning English in Banphoem School, Loei, Thailand. This research focused on finding students' perception on the use of English subtitle on Zoom video conference to assist students understand the material during online learning process. The researcher distributed survey questionnaire and conducted interview to the responders. The result of this research showed positive perception where integrating English subtitle on Zoom video conference helped students understand the material explained by pre-service teacher easier. Moreover, the students responded that they also felt enjoy in learning using subtitle because they could also gain new vocabulary and motivate them to learn English more.
Keywords: online learning, students’ perception, students’ understanding, subtitle
IDENTIFYING AND OVERCOMING SOME FATIGUE-CAUSING FACTORS EXISTING IN ONLINE READING CLASS OF AMIKOM PURWOKERTO PSDKU YOGYAKARTA DURING COVID-19 QUARANTINE
Authors: Wijayanti Anita , Irawan Yeremia Andi , Gunawan Yohanes Bambang 
Published: April 2022

Abstract

COVID-19 forced AMIKOM Purwokerto to convert its traditional classes to online learning. During this online learning, problems have started to unravel, and one of them is fatigue, which was confirmatively experienced by 55% students of Reading IV. This study, utilizing a quantitative research method, intended to find the causes of the fatigue and design practicable solutions. Through observations, group interview, and literature reviews, some main factors that caused fatigue were revealed: Zoom fatigue; tasks which were too difficult and numerous; presentation of materials which did not properly comply with the students’ online conditions and unfamiliarity to Google Classroom; eye fatigue (digital eye strain), bad postures during learning, lockdown fatigue, and frustration over signal and internet problems. To overcome the fatigue, the researchers reduced the time for video conferences and created asynchronous short videos for learning, selectively adjusted tasks in terms of number and difficulty, simplified presentations of materials and helped the students to become more familiar with Google Classroom, and addressed the problems from eye strain, bad postures, and lockdown fatigue in the reading materials so the students could solve those problems based on the texts given or find a more viable solution. Those solutions reduced the number of drained students to only 25% and in addition 60% students claimed that the modifications brought a positive impact on their learning.
Keywords: fatigue, distance learning, COVID-19, Zoom fatigue
Developing supplementary reading materials for tenth-graders of English language and literature program
Authors: Agustin Susilowati  , Hasti Robiasih  
Published: April 2022

The objectives of this study were (1) to develop supplementary reading material for grade X students of English Language and Literature program (ELLP) and (2) to describe the efficacy of the developed supplementary reading material. This research was categorized as Educational Research and Development (R&D) and it employed six steps among the ten proposed by Borg and Gall's model (1983). Those were (1) conducting need analysis, (2) constructing the course grid, (3) developing the first draft of the material (4) getting the expert judgment, (5) revising and writing the final draft of the material, and (6) conducting field testing. The instruments used in this research were questionnaires and interview guidelines. Two types of questionnaires were used to collect the data. The first questionnaire used to obtain the data for the needs analysis was administered to grade X students of ELLP of SMAN 11 Yogyakarta. The second questionnaire used to obtain the data about the appropriateness of the materials was administered to the experts. The materials were designed and based on the frame work proposed by Task Based Instruction (Willis, 1996). The findings showed 1) the development of supplementary reading materials was to fulfill the students' need; the result of need analysis was used to develop the reading materials (2) the efficacy of the developed supplementary reading material helped students to enhance their reading comprehension skills and to achieve the goal of learning reading. Based on the expert judgment, the mean score of all aspects of the two developed units, in the scales of 1-4 was 3.93 which was in the range of 3.50 < x â‰¤ 4.00 and could be categorized as Very Good. It can attract students to be actively involved in the teaching and learning process. Furthermore, it provides additional learning resource for students to learn reading.
STUDENTS’ PROFILES THROUGH LEARNING APPROACHES USING BIGGS’ STUDY PROCESS QUESTIONNAIRE
Authors: Astika Gusti , Sumakul Dian Toar Y. G. 
Published: April 2022

A number of studies show that studenents' approaches to learning are important elements to achieve success. Learning approache provides perspectives on the characterisics of good learners. Using R-SPQ-2F (Biggs, Kember, & Leung, 2001), a revised version of Biggs'(1987) Study Process Questionnaire (SPQ), this study attempted to explore the learning approaches of first year students of 2013 academic year at the Faculty of Language and Literature, of Satya Wacana Christian University. The purpose of the study was to find out if there was a correlation between the students' approaches to learning and their achievement in the Integrated Course (IC), and the profile of their approaches to learning English in the first semester. From 151 respondents participated in this study, it was found that, although weak, there was a positive correlation between students’ achievement scores and Deep Approach and a negative correlation between their IC scores and Surface Approach. This study also found that Deep Motive was associated with the students' achievement. However, from the findings of the students' profile based on SPQ indicated that the study could not predict the students at risk. Other factors could have affected the students' achievement in their learning.
STUDENTS PERCEPTION ON THE TEACHER NONVERBAL COMMUNICATION AT THE SEVENTH GRADE STUDENTS OF MTSS NAGARI BINJAI
Authors: Arima Riya , Irwandi Irwandi , Ali Reflinda 
Published: April 2022

ABSTRACT
The research was due to several problems found in the field: the teacher did not usually used nonverbal communication in English classroom. It is indicated by the English teacher when the researcher did the preliminary research when teaching learning process in this class. It is indicated when the teacher try to silent to make the students pay attention but the fact some of students still make noise and not pay attention to the teacher in this class.
The result of the research: first students perception on teacher’s gesture with 34,09% in rating quality of good. Second, students perception on teacher’s facial expression with 36,4% in rating quality of good. Third, students perception on teacher’s eye contact with 27,7% in rating quality of moderate. Fourth, students perception on teacher’s pitch with 18,45% in rating quality of poor. Fifth, students perception on teacher’s rate with 36,9% in rating quality of good. Sixth, students perception on teacher’s pause with 36,4% in rating quality of good. Seventh, students perception on the teacher’s friendship and warmth with 31,85% in rating quality of good.
Edukasi Perilaku Hidup Sehat dengan Mengkonsumsi Makanan Berbasis Tanaman Pada Masa Pandemi Covid-19
Authors: Rahmah Latifahtur 
Published: April 2022

Pandemi COVID-19 secara signifikan mempengaruhi perilaku pelajar dalam membeli makanan dan minuman. Pola konsumsi makan yang sehat dapat dipilih berpedoman pada plant based food atau makanan berbasis tanaman. Edukasi mengenai makanan berbasis tanaman diadakan di SMKN 8 Surabaya. Terdapat total 35 perwakilan siswa yang terdiri dari 5 kompetensi keahlian yang berbeda yaitu multimedia, perhotelan, jasa boga, tata kecantikan, dan tata busana. Edukasi mengenai makanan berbasis tanaman di SMKN 8 Surabaya dilakukan dengan menggunakan metode ceramah dengan media power point, diskusi dan presentasi. Sesi pemberian edukasi berjalan dengan lancar semua peserta mendengarkan dengan baik, sesi tanya jawab berjalan baik karena siswa antusias bertanya. Pada sesi tugas dengan metode diskusi siswa dan siswi dapat mempresentasikan dengan baik mengenai menu makan dalam sehari yang terdiri dari makan pagi, makan siang, makan malam, dan camilan yang sesuai dengan konsep makanan berbasis tanaman. Dari hasil evaluasi didapatkan hasil rata-rata 100% peserta dapat menjawab pertanyaan dengan baik. Setelah diadakan edukasi mengenai makanan berbasis tanaman diharapkan siswa dan siswi dapat membuat menu makan yang sehat yang dapat dipilih didasarkan pada makanan berbasis tanaman dan mengonsumsinya secara teratur. Makanan berbasis tanaman sangat baik untuk dikonsumsi karena membawa manfaat dalam hal kesehatan fisik siswa, kesehatan psikologis siswa, memberikan hak-hak hewan hingga menciptakan perlindungan lingkungan.
Pembakaran Hutan Sebagai Tindak Pidana Lingkungan: Analisis Dalam Prespektif Hak Asasi
Authors: Pratama Surya Mukti , Mutiara Putri Mega , Hafiz Muhammad 
Published: April 2022

Undang-Undang Dasar Negara Republik Indonesia tahun 1945 mengamanatkan bahwa setiap orang berhak untuk mendapatkan lingkungan hidup yang baik dan sehat sebagaimana yang tercantum dalam pasal 28H ayat 1. Untuk itu, negara memiliki tanggungjawab dalam menjamin terpenuhinya hak tersebut. Isu yang diangkat dalam tulisan ini adalah terkait dengan kebakaran hutan yang berimbas kepada terlanggarnya hak untuk mendapatkan jaminan lingkungan hidup yang baik dan sehat karena asap dari pembakaran hutan tersebut memiliki dampak yang buruk bagi manusia, terlebih apabila disebabkan oleh faktor manusia. Untuk itu, perlu diperhatikan bagaimana hukum mengatur dan tanggungjawab negara ketika terjadi perbuatan pembakaran hutan yang disebabkan faktor manusia dikaitkan dengan pandangan HAM. Penulisan ini menggunakan metode yuridis normatif yang merupakan penelitian hukum dengan menggunakan data sekunder yang terdiri dari bahan-bahan hukum yang meliputi bahan hukum primer, sekunder, dan tersier. Metode pendekatan yang digunakan dalam menganalis bahan-bahan hukum yaitu pendekatan perundang-undangan (statue approach) dan pendekatan konsep (conceptual approach). Hasil dari penulisan menunjukkan bahwa aktivitas pembakaran hutan yang berdampak pada kebakaran hutan secara luas merupakan pelanggaran terhadap hak atas lingkungan hidup yang baik dan sehat. Oleh karena itu, pemerintah memiliki tanggungjawab terhadap terpenuhinya hak tersebut dengan cara menindak tegas para pelaku pembakaran hutan dan melakukan upaya pemulihan bagi masyarakat yang terdampak atas kebakaran hutan tersbut.
Numerical Simulations of Convective Three-dimensional Red Supergiant Envelopes
Authors: Goldberg Jared A. , Jiang 姜 Yan-Fei 燕飞 , Bildsten Lars 
Published: April 2022

Abstract
We explore the three-dimensional properties of convective, luminous (L ≈ 104.5–105
L
⊙), hydrogen-rich envelopes of red supergiants (RSGs) based on radiation hydrodynamic simulations in spherical geometry using Athena++. These computations comprise ≈30% of the stellar volume, include gas and radiation pressure, and self-consistently track the gravitational potential for the outer ≈3M
⊙ of the simulated M ≈ 15M
⊙ stars. This work reveals a radius, R
corr, around which the nature of the convection changes. For r > R
corr, though still optically thick, diffusion of photons dominates the energy transport. Such a regime is well studied in less luminous stars, but in RSGs, the near- (or above-)Eddington luminosity (due to opacity enhancements at ionization transitions) leads to the unusual outcome of denser regions moving outward rather than inward. This region of the star also has a large amount of turbulent pressure, yielding a density structure much more extended than 1D stellar evolution predicts. This “halo” of material will impact predictions for both shock breakout and early lightcurves of Type IIP supernovae. Inside of R
corr, we find a nearly flat entropy profile as expected in the efficient regime of mixing-length theory (MLT). Radiation pressure provides ≈1/3 of the support against gravity in this region. Our comparisons to MLT suggest a mixing length of α = 3–4, consistent with the sizes of convective plumes seen in the simulations. The temporal variability of these 3D models is mostly on the timescale of the convective plume lifetimes (≈300 days), with amplitudes consistent with those observed photometrically.
Galaxy Light Profile Convolutional Neural Networks (GaLNets). I. Fast and Accurate Structural Parameters for Billion-galaxy Samples
Authors: Li R. , Napolitano N. R. , Roy N. , Tortora C. , La Barbera F. , Sonnenfeld A. , Qiu C. , Liu S. 
Published: April 2022

Abstract
Next-generation large sky surveys will observe up to billions of galaxies for which basic structural parameters are needed to study their evolution. This is a challenging task that, for ground-based observations, is complicated by seeing-limited point-spread functions (PSFs). To perform a fast and accurate analysis of galaxy surface brightness, we have developed a family of supervised convolutional neural networks (CNNs) to derive Sérsic profile parameters of galaxies. This work presents the first two Galaxy Light profile CNNs (GaLNets) of this family. The first one is trained using galaxy images only (GaLNet-1), and the second is trained with both galaxy images and the local PSF (GaLNet-2). We have compared the results from GaLNets with structural parameters (total magnitude, effective radius, Sérsic index, etc.) derived from a set of galaxies from the Kilo-Degree Survey by 2DPHOT as a representative of the “standard” PSF-convolved Sérsic fitting tools. The comparison shows that GaLNet-2 can reach an accuracy as high as that of 2DPHOT, while GaLNet-1 performs worse because it misses the information from the local PSF. Both GaLNets are three orders of magnitude faster than standard methods in terms of computational speed. This first application of CNNs to ground-based galaxy surface photometry shows that they are promising tools to perform parametric analyses of very large galaxy samples, like the ones expected from the Vera Rubin/LSST surveys. However, GaLNets can be easily modified for space observations from Euclid and the China Space Station Telescope.
The 6-1/2 Inch Monobore Expandable System for the North Sea Application
Authors: Godfrey Matthew Mark 
Published: April 2022

Abstract
The use of monobore expandable systems has been theorized in previous works (Dean 2003, Dupal 2002) with various proposed embodiments. Commercially available sizes are limited to 8-1/2 and 12-1/4 wherein the size designation refers to the drift diameter which the monobore system may pass through and the post-expanded drift diameter of the monobore liner. In particular, the 12-1/4 in. size has a run history which includes a recent successful commercial installation (Baker 2021). An application within the North Sea where significant pressure gradients are typically encountered during drilling of a 6-1/2 in. section below the 7-3/4 in. base casing was identified as a candidate to leverage existing monobore expandable technology in a 6-1/2 in. size. Monobore expandable technology is the preferred method to manage challenges presented by steep pressure gradients or fluid loss zones while drilling due to the robustness of a solid steel barrier with external isolation seals, which may be cemented in place without a reduction in wellbore diameter. Beginning with the 12-1/4 in. platform and scaling down to a 6-1/2 in. platform created challenges regarding geometry, critical load ratings, and achieving post-expanded system ratings.
A feasibility study was performed which relied heavily on finite element analysis to determine the possibility of the system scale down from 12-1/4 in. to 6-1/2 in. The analysis proved the design of a monobore expandable system in the 6-1/2 in. size based on the requirements for the North Sea application. It also proved that the design would require a non-standard pipe size. The pipe and expansion system were tested in a series of surface level qualification tests and at a test rig within a downhole environment. The results of testing validated the finite element analysis approach to the feasibility study and proved system readiness for field qualification trials.