bluuebunny/crossref_metadata_2025 huggingface dataset:
HUBUNGAN PERAN ORANG TUA PADA PELAKSANAAN BELAJAR DARI RUMAH MATA PELAJARAN MATEMATIKA TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS 5 SD NEGERI 04 SILUNGKANG 3 KECAMATAN SILUNGKANG KOTA SAWAHLUNTO
Authors: Desrita Yuni Lia
Published: August 2022

The purpose of this study was to describe the relationship between the role of parents in the implementation of learning from home mathematics subjects to the mathematics learning outcomes of 5th graders at SD Negeri 04 Silungkang 3, Silungkang District, Sawahlunto City. This type of research is correlative research. The population in this study were 5th-grade students of SD Negeri 04 Silungkang 3 for the 2020/2021 academic year, totaling 25 people. The sampling technique is total sampling. The instrument in this study is a questionnaire on the role of parents in the implementation of learning from home in mathematics. Based on the calculation, the calculated r-value is 0.86 and the r table value is 0.382. Because of the value of r arithmetic > r table, it can be concluded that there is a significant relationship between the role of parents in the implementation of learning from home mathematics subjects to the mathematics learning outcomes of grade 5 students at SD Negeri 04 Silungkang 3 because the value of r count is 0.86 which means that the level of the relationship between the role of parents in the implementation of learning from home mathematics is very strong. So it can be concluded from this study that there is a significant and very strong relationship between the role of parents in the implementation of learning from home mathematics subjects to the mathematics learning outcomes of 5th graders at SD Negeri 04 Silungkang 3, Silungkang District, Sawahlunto City.
Kepraktisan Pengembangan Modul Eletronik Persamaan Diferensial Berbasis Software Flipbook Maker HTML Pada Google Classrom DI FKIP UMMY Solok
Authors: Oktavinora Rita
Published: August 2022

The purpose of this research is to produce an electronic module of differential equations based on html flipbook maker software in a practical google classroom. This type of research is research and development, this development uses the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). The instrument used is a student response questionnaire. The result of the research shows that a practical differential equation module based on flipbook maker html software has been produced on Google Classroom at FKIP UMMY Solok.
Desain Lembar Kerja Siswa Pada Materi Lingkaran Berbasis Realistic Mathematic Education
Authors: Agustuti Melisa , Amri Mira Amelia , Nofrianto Adri , Rafulta Elfa
Published: August 2022

This is the background of the research by necessary of teaching materials in the learning process. The teaching materials that apply are able of guiding students in the learning process and it hind a concept that also after to train which appropriate with level of student's ability. The teaching materials that exist are not whole to guide students to find a concept yet. Therefore, it is developed of LKS design based on RME and intended to the facility for students, this research aims to know the validity and practicality of LKS based on RME. Kind of the research and development (R&D), used model 4-D which consists of 4 stages. They are define, design, develop, and disseminate. However, this research is limited just to conduct until the development stage. The validity of LKS has 72,92% with a valid category. Based on the practicality of the questionnaire from a teacher 82,19% with very practice category. The result of practicality of questionnaire from students has 90,88% with very practice category. Therefore, LKS design on circle material based on RME at second grade of SMPN 4 in Lubuk Alung has valid and practice.
El impacto de los factores de riesgo psicosocial en trabajadores del sector industrial
Authors: Ruth Lily Soliz Baldomar Ruth Lily
Published: August 2022

Los factores psicosociales son un tema ampliamente abordado en la literatura. Durante años, empresarios y académicos abordan el diseño de estrategias encaminadas hacia sus trabajadores tales como ofrecer mejores salarios, otorgar posibilidades de ascenso a sus empleados o mejorar el nivel de comunicación entre los compañeros de trabajo. Planteamientos recientes, han promovido estrategias al interior de las empresas tales como otorgar horarios flexibles, promover estilos de supervisión que generen confianza en sus empleados, seleccionar el personal de acuerdo con ciertos rasgos de personalidad o distribuir equitativamente la carga laboral. No obstante, estas estrategias han tenido dificultades al momento de su implementación, ya que requieren de inversiones muy significativas para las empresas y no aseguran que se reduzca el impacto que pueden generar estos factores como ser la ausencias, abandono, el estrés laboral, salud mental, entre otros. En este sentido, la presente investigación tiene como objetivo indagar en el impacto de los factores no estudiados comúnmente como son los factores psicosociales intra y extralaboral y la incidencia de estos en los trabajadores operativos de empresas del sector industrial en la zona industrial de Guadalajara, Jalisco. A través de la revisión literaria se analizaron algunos los factores de riesgo psicosocial intra y extralaboral siendo estos los más relevantes para los autores mencionados a lo largo de esta investigación. El estudio de campo realizado es descriptivo, transaccional, de diseño no experimental. El proceso metodológico consistió en la identificación de pilares teóricos. Y se definió el censo para aplicar las técnicas e instrumento seleccionado formado por 227 trabajadores del sector industrial en la ciudad de Guadalajara, Jalisco. Se sistematiza la información recabada y se identifican los factores de riesgo psicosocial extralaboral, así como también la información ocupacional, sociodemográficas y salud mental.
आत्म परिवर्तन एवं अनुशासन
Authors: उपमन्यु प्रभाकर
Published: August 2022

स्वयं या आत्म उस प्रत्यक्षीकरण या अनुभव से है, जो व्यक्ति अपने आप में करता है। किसी भी सामाजिक आवश्यकता एवं लक्ष्य का संगठन इसी स्वयं के माध्यम से होता है। मनुष्य अपनी आत्म-शक्तियों एवं अपनी कमजोरियों के साथ रहता है। वह अपने शरीर, मन, विचार एवं भाव के प्रति भी अनुक्रिया करता है। आत्म-अनुशासन खुद को आगे बढ़ाने, प्रेरित रहने की क्षमता है। भले ही आप शारीरिक या भावनात्मक रूप से कैसा भी महसूस कर रहे हों ? स्वयं के प्रति दृष्टिकोणों के विकास का परिणाम है। आत्म या स्वयं के संप्रत्यय को एकीकृत रूप से ना देखा जाए, तो सामाजिक व अन्य संबंधों में स्थिरता और निरंतरता की संभावना नहीं रहती। आत्म लंबी प्रक्रिया का परिणाम होता है, जो व्यक्ति के दूसरों के संदर्भ में पदार्थों, समूहों, संस्थाओं तथा मृत्यु के संदर्भ के अर्थों आत्म या स्वयं शब्द का प्रयोग अहम् के अर्थ में एक माध्यम या एजेंट के रूप में जाना जाता है, जो अपनी पहचान की निरंतरता के लिए चेतन रहता है
The Influence of the Cycle 5E's Learning Model on Students' Critical Thinking Ability
Authors: Nasution Ahmad Maulana , Adlini Miza Nina
Published: August 2022

Education is a learning process in which students welcome and master knowledge. The ability to know the importance of skills that are very important and very important in all aspects of life, especially in education. This study aims to determine the effect of the 5E learning cycle learning model on the critical thinking ability of the Senior High School of Second grade (XI MIA class) SMA Negeri 1 Batangkuis students. This research is a quasi-experimental study in which the research population consists of two class students at SMA Negeri 1 Batang Kuis, namely class XI MIA1 as the experimental class and XI MIA2 as the control class, each of which contains 31 and 29 people. Data collection techniques in the form of critical thinking test results that refer to cognitive learning tests in the form of multiple choice questions as many as 20 questions. The sampling technique of this study used cluster random sampling, namely random sampling which was calculated using covariance analysis. The results of this study gained a data significance of 0.000 <0.05, meaning there is an effect of linear discrimination on critical thinking skills. Hopefully, we can develop vital thought skills by increasing the concentration of learning together to build ideas and keep students active in the classroom
Limited Scale of the Face-to-Face Learning Analyze to Student Learning Saturation for the First Grade (X Class) of Senior High School in Biology’s Lesson
Authors: Siregar Fatimah Zahara , Ulfa Syarifah Widya
Published: August 2022

This study aims to determine the level of student learning when face-to-face learning is limited to biology subjects at Senior High School of SMA Negeri 1 Batang Kuis and the factors that influence it. The research method uses qualitative methods. The research population includes three classes, namely X MIA Class with a sample of 35 students, namely X MIA1 Class and X MIA2 Class as many as 34 students and X MIA 3 Class as many as 31 students. Research data in the form of biology teacher interviews and student questionnaires were developed according to indicators of learning saturation, namely emotional exhaustion, physical exhaustion, cognitive fatigue, and loss of motivation. The data collected was processed using a Likert scale technique, which was measured and translated into variable indicators. The data analysis technique uses the Miles & Huberman model, which consists of 3 stages, namely data reduction, data presentation, as well as inference and validation. The results of this study show that during face-to-face learning the scale is limited to the indicator of emotional exhaustion of the dominant student in the saturated category, on the indicator of physical fatigue the dominant student is in the saturated category, on the indicator of cognitive fatigue the dominant student is in the saturated category, on the indicator of loss of motivation The dominant student is in the very saturated category
Analysis of the Attitude And Learning Interest of Senior High School Students Towards Biology Lesson
Authors: Rangkuti Ayu Septianty , Ulfa Syarifah Widya
Published: August 2022

Attitude is something that is needed by students because attitudes will affect student learning outcomes, while interest is a driving force for students to do what they expect. This study has the aim of knowing and analyzing the attitudes and interests of students to the subject of biology in high school students. On attitude by using indicators of cognitive, affective and conative views. In contrast to interest by using indicators of feelings of pleasure, attention, interest, and student involvement. This research was carried out at Senior High School of SMA Negeri 13 Medan in 2022 in May. This research is a qualitative descriptive study using observations, interviews, questionnaires, and documentation. The population of this research were students of Senior High School SMA Negeri 13 Medan by citing a sample of 90 students in class XI. The research instrument used was an attitude and interest questionnaire that explained attitudes towards learning biology through 3 indicators with 30 statements, then interest in learning biology through 4 indicators with 30 statements. The information analysis method used is descriptive statistics. This data analysis technique uses Miles & Hubermaan analysis which consists of three stages, namely data reduction, data presentation, and drawing and conclusions. Based on the results of the analysis of information, it was found that the students' actions and interest in learning at Senior High School of SMA Negeri 13 Medan were in the strong category
Experiencia de lectura continua para el mejoramiento de la comprensión lectora en estudiantes peruanos
Authors: Rosales-Veítia José Andres , Cáceres-Barrutia Luis , Cárdenas-Llaja Juan Carlos , Camacho-Guzmán Yheisa
Published: August 2022

Uno de los indicadores para medir que tanto aprenden los estudiantes en las escuelas se denomina Pobreza de aprendizaje, y se relaciona con problemas de comprensión lectora. Por ello, la investigación tuvo como objetivo determinar la efectividad de una estrategia didáctica de lectura continua para el mejoramiento la comprensión lectora de estudiantes de VI ciclo de dos instituciones educativas privadas en el distrito de Chorrillos, Lima Metropolitana – Perú. Se trabajó con 94 estudiantes de 1ero y 2do de secundaria escogidos en un muestreo censal, a quienes se les aplicó prueba en dos momentos (pretest y postest), divididos por una intervención educativa que empleó el cuento de El Principito para promover la lectura continua, adicionalmente se utilizó la prueba de los rangos con signo de Wilcoxon para dar validez estadística a los resultados, los cuales muestran una mejora promedio entre el 60 y 80%, concluyéndose que la estrategia es altamente efectiva.
PERAN PEKERJA SOSIAL DALAM REHABILITASI SOSIAL PADA PENYANDANG DISABILITAS MENTAL DI PANTI SOSIAL BINA LARAS PAMBELUM
Authors: Rahayu Marina , Munawarah Hanikhatul , Sriyani Sriyani , Putri Septiani Riri Eka , Putri Linni Turia , Pratiwi Melinia , Julianto Yolgi , Rizka Ramadhanti , Ateza Sembiring Vio , Irfan Muhammad
Published: August 2022

Penyandang disabilitas mental adalah seseorang yang mengalami gangguan otak yang ditandai oleh terganggunya emosi proses berpikir perilaku dan presepsi (penangkapan panca indera) yang bisa menimbulkan stress dan penderitaan bagi yang bersangkutan. Oleh sebab itu, penyandang disabilitas mental memerlukan pelayanan rehabilitasi sosial untuk mengembalikan fungsi sosialnya melalui panti. Panti Sosial Bina Laras (PSBL) Pambelum Palangka Raya mempunyai tugas menyelenggarakan sebagian kegiatan teknis operasional dalam pemberian bimbingan pelayanan dan rehabilitasi sosial yang bersifat kurative, rehabilitative, promotive dalam bentuk bimbingan pengetahuan dasar pendidikan fisik, mental, sosial, dan pelatihan keterampilan, dengan berjalannya itu perlu adanya pekerja sosial. Tujuan dari penelitian ini adalah untuk memberikan gambaran mengenai pelayanan, program dan kegiatan rehabilitasi sosial yang dilakukan di PSBL Pambelum. Metode penelitian yang digunakan adalah metode kualitatif dengan pengumpulan data secara wawancara dan observasi. Diharapkan setelah mengetahui gambaran mengenai pelayanan di PSBL, masyarakat mengetahui pentingnya mengenai rehabilitasi sosial kepada penyandang disabilitas mental, sehingga setelah selesai rehabilitas sosial dapat diterima kembali dikeluarga maupun masyarakat.
IMPLEMENTASI ASPEK MANAJEMEN BERBASIS SEKOLAH DALAM PELAYANAN BIMBINGAN DAN KONSELING
Authors: Diaty Rima , Arisa Azura , Ari Lestari Nur Cahyani , Ngalimun Ngalimun
Published: August 2022

Dalam penelitian ini membahas implementasi aspek manajemen berbasis sekolah dalam pelayanan bimbingan konseling yang terjadi di sekolah. Adapun hasilnya adalah: manajemen berbasis sekolah dalam pelayanan bimbingan konseling merupakan model manajemen yang memberikan otonomi lebih luas kepada sekolah termasuk madrasah untuk mengelola sumber daya sekolah  dan mendorong sekolah meningkatkan partisipasi warga sekolah  dan masyarakat untuk mencapai tujuan sekolah dalam kerangka pendidikan nasional. Implementasi manajemen berbasis sekolah dalam bimbingan konseling di sekolah pelaksanaannya memerlukan kerja sama dan partisipasi stakeholders sekolah. Seperti kelompok stakeholders adalah kepala sekolah dan wakil-wakilnya, guru, siswa, konselor, wakil pemerintah dan wakil organisasi pendidikan. Dengan demikian, penyusunan program BK di sekolah pelaksanaannya mensyaratkan kerja sama dan partisipasi stakeholders dan penyusunan program BK pelaksanaannya juga meniscayakan adanya keterbukaan.
Inertia Sensor Detecting Materials using Electromagnetic Signals
Authors: Vasilaki Erietta , Rigakis Iraklis , Papadoulis Theodore , Staridas Alexios , Psaroudaki Antonia , Frantzeskakis Lambros , Makris Zisis , Lazari Diamanto , Antonidakis Emmanuel
Published: August 2022

There are many commercial sensors that use inertia systems and others that use electromagnetic systems. Until now, none of the existing sensors combines a circular inertia movement with the simultaneous transmission of electromagnetic radiation in the band of very low (VLF) and ultra low (ULF) frequencies. The aim of this paper is to show the design of such a sensor, that contains an electromagnetic signal generator and to observe and monitor its movement on a free rotating inclined platform. An accurate positioning and monitoring system is used in order to measure the velocity and acceleration at every position on its movement. It is a novel system that is already in use in material identification and localization. It is indubitably working and exports excellent results, although we are not still familiar with the laws of physics that determine the specific phenomenon. Until this point the sensor is used to identify only a limited number of materials. In the future it would be ideal to use it for more materials, find their frequencies and create a library that contains many materials and different kind of substances.
Two new magnoliid (Annonaceae, Lauraceae) tree species from Manabí, western Ecuador
Authors: Couvreur T.L.P. , Cornejo X. , Zapata J.N. , Loor A.
Published: August 2022

Western Ecuador harbours high plant diversity and endemism. The region of Manabí has known intense deforestation over the last decades, but lowland rain forests persist in a network of small forest fragment patches. Here, we describe two new magnoliid tree species from a small
privately owned forest fragment known as La Esperanza reserve, in the El Carmen canton (Manabí): Aniba ecuadorica (Lauraceae) and Guatteria esperanzae (Annonaceae). For both species a detailed morphological description, a preliminary conservation status following
IUCN criteria, distribution maps and high quality photographs are provided. This represents the second species of Aniba known to occur in western Ecuador, while there are 14 species of Guatteria documented for Ecuador west of the Andes. Aniba ecuadorica is only known from
two localities and has a preliminary IUCN conservation status of Critically Endangered, while Guatteria esperanzae is known from six localities and is suggested to be Endangered. Finally, we provide a quick overview of Guatteria species in western Ecuador with a key to the species
in the region. The description of these two new tree species underlines the important need of prospection and conservation of the remnant forests in the Manabí region of western Ecuador. We also stress the importance of privately owned forest fragments for biodiversity conservation.
“I Want to be an Entrepreneur”: The Important Role of Effectiveness of Entrepreneurship Education and Internal Locus of Control
Authors: Ardyan Elia , Ivan Johanes , Parega Erwin , Suade Yuyun K. M. , Hutapea Dina Martha , Susanti Ari
Published: August 2022

This study examines the effectiveness of entrepreneurship education, entrepreneurial social support, and internal locus of control in increasing entrepreneurial intention. This research was conducted at S1 Management students at Ciputra University Surabaya (class of 2016). The total number of respondents in this study was 92 students. The analysis used is partial least square structural equation modeling (SEM-PLS). Data were processed using WarlPls version 7. The results of this study indicate that entrepreneurial social support and the effectiveness of entrepreneurship education can improve internal locus of control. High internal locus of control will have an impact on student's intention to become entrepreneurs as their career choices. Other results also show that the effectiveness of entrepreneurship education is an important part of increasing entrepreneurial intention compared to entrepreneurial social support factors.
The Effect of Consumer Trust and Perceived Risk on e-Wallet Adoption: Consideration for Technology Startup Entrepreneurs
Authors: Krisnawati Melisa , Wienadi Jessica , Wiradinata Trianggoro
Published: August 2022

The use of electronic wallet (e-Wallet) has been increasingly popular due to the growth of electronic commerce because e-Wallet offers practicality and secure way of paying. However, data shows that payment by bank transfers are still the most popular payment method compared to e-Wallet. This study aims to analyze the effect of perceived usefulness, ease of use, consumer trust, and perceived risk towards the adoption of various kinds of e-wallet in Indonesia. The grounding theory of this study is using the Technology Acceptance Model (TAM) which is currently still very relevant in measuring antecedents toward technology adoption. This study collects data from 128 respondents using a self-administered questionnaire using purposive (judgmental)  sampling. Among data collected there were 3 responds detected as outliers, hence removed. Multiple Regression Analysis was then performed using python programming language to determine significant factors. The finding of this study shows all antecedents are significantly affecting Intention to Adopt e-Wallet payment with Perceived Usefulness as the dominant factor. The finding is expected to inspire e-Wallet developers, integrators, and digital entrepreneurs to pay more attention towards the Perceived Usefulness factor.
Athlete’s Entrepreneurship Interest A Review Of The Perspective Of Sportpreneur Program, Personality And Self-Efficacy
Authors: Utami Christina Whidya , Padmalia Metta , Sudyasjayanti Christina , Ernantyo Yosef Evandro
Published: August 2022

The effort in developing the economy and reducing unemployment in Indonesia is through entrepreneurship. In order to conduct business well, entrepreneurs need to be motivated by several factors in order to have the interest for entrepreneurship. Luthje and Franke’s model (LFM) argued that in order to spark the interest for entrepreneurship, it is affected by several factors, which are internal and external factor. Therefore, this goal of this research is to determine how big the impact of internal and external factor on interest for entrepreneurship.  The aim of this research is to understand and analyze the effect of entrepreneurial education, consisting of Sportpreneur Program, personality and self-efficacy on interest for entrepreneurship. There are 4 variables in this study, which are: entrepreneurial education (X1), personality (X2), self-efficacy (X3) and entrepreneurship interest (Y).  The research method used is quantitative method, whereby the data was obtained through online distribution of questionnaires. Research sample/ subject is East Java KONI athletes that have participated in sportpreneur program in Institusi Surabaya. Based on the result of this research, it is shown that entrepreneurship interest is positively and significantly affected by Entrepreneur education consisting of Sportpreneur progam and self-efficacy, however, entrepreneurship interest is not affected by personality.
A First Look at CRIRES+: Performance Assessment and Exoplanet Spectroscopy
Authors: Holmberg Måns , Madhusudhan Nikku
Published: August 2022

High-resolution spectroscopy has proven to be a powerful avenue for atmospheric remote sensing of exoplanets. Recently, ESO commissioned the CRIRES+ high-resolution infrared spectrograph at the Very Large Telescope. CRIRES+ is a cross-dispersed spectrograph with high throughput and wide wavelength coverage across the near-infrared (0.95–5.3 μm), designed to be particularly suited for atmospheric characterization of exoplanets. In this work, we report early insights into the performance of CRIRES+ for exoplanet spectroscopy and conduct a detailed assessment of the data reduction procedure. Because of the novelty of the instrument, we perform two independent data reduction strategies using the official CR2RES pipeline and our new custom-built ExoRES pipeline. Using science verification observations we find that the spectral resolving power of CRIRES+ can reach R ≳ 100,000 for optimal observing conditions. Similarly, we find the signal-to-noise ratio (S/N) to be consistent with expected and empirical estimates for the observations considered. As a case study, we perform the first application of CRIRES+ to the atmospheric characterization of an exoplanet—the ultrahot Jupiter MASCARA-1 b. We detect CO and H2O in the atmosphere of MASCARA-1 b at a S/N of 12.9 and 5.3, respectively, and a temperature inversion revealed through the CO and H2O emission lines, the first for an exoplanet. We find a combined S/N of 13.8 for CO and H2O together, with a preference for lower H2O abundance compared to CO. Our findings demonstrate the scientific potential of CRIRES+ and highlight the excellent opportunity for high-resolution atmospheric spectroscopy of diverse exoplanets.
The Discovery of New Binary Systems Using Value-added Catalogs and TESS Data
Authors: Carrell Kenneth , Gray Cherry Jackie , Gillespie Charles
Published: August 2022

Using potentially variable sources flagged in value-added catalogs created by combining data from the Gaia, IPHAS, and KIS surveys, we utilized data from TESS, McDonald Observatory, and the Southern Plains Private Observatory to confirm and identify four of these potentially variable sources as eclipsing binaries. Combining large data sets and obtaining smaller-scale, focused observations allowed for the discovery of these systems, and shows the importance of both large value-added catalogs as well as targeted observations as follow up.
Formation of Dust Clumps with Sub-Jupiter Mass and Cold Shadowed Region in Gravitationally Unstable Disk around Class 0/I Protostar in L1527 IRS
Authors: Ohashi Satoshi , Nakatani Riouhei , Liu Hauyu Baobab , Kobayashi Hiroshi , Zhang Yichen , Hanawa Tomoyuki , Sakai Nami
Published: August 2022

We have investigated the protostellar disk around a Class 0/I protostar, L1527 IRS, using multiwavelength observations of the dust continuum emission at λ = 0.87, 2.1, 3.3, and 6.8 mm, obtained by the Atacama Large Millimeter/submillimeter Array and the Jansky Very Large Array (VLA). Our observations achieved a spatial resolution of 3–13 au and revealed an edge-on disk structure with a size of ∼80–100 au. The emission at 0.87 and 2.1 mm is found to be optically thick, within a projected disk radius of r
proj ≲ 50 au. The emission at 3.3 and 6.8 mm shows that the power-law index of the dust opacity (β) is β ∼ 1.7 around r
proj ∼ 50 au, suggesting that grain growth has not yet begun. The dust temperature (T
dust) shows a steep decrease with T
dust ∝ r
proj
−2 outside the VLA clumps previously identified at r
proj ∼ 20 au. Furthermore, the disk is gravitationally unstable at r
proj ∼ 20 au, as indicated by a Toomre Q parameter value of Q ≲ 1.0. These results suggest that the VLA clumps are formed via gravitational instability, which creates a shadow on the outside of the substructure, resulting in the sudden drop in temperature. The derived dust masses for the VLA clumps are ≳0.1 M
J. Thus, we suggest that Class 0/I disks can be massive enough to be gravitationally unstable, which may be the origin of gas giant planets in a 20 au radius. Furthermore, the protostellar disks could be cold due to shadowing.
Black Hole Mass Measurements of Early-type Galaxies NGC 1380 and NGC 6861 through ALMA and HST Observations and Gas-dynamical Modeling*
Authors: Kabasares Kyle M. , Barth Aaron J. , Buote David A. , Boizelle Benjamin D. , Walsh Jonelle L. , Baker Andrew J. , Darling Jeremy , Ho Luis C. , Cohn Jonathan
Published: August 2022

We present Atacama Large Millimeter/submillimeter Array (ALMA) Cycle 2 observations of CO(2–1) emission from the circumnuclear disks in two early-type galaxies, NGC 1380 and NGC 6861. The disk in each galaxy is highly inclined (i ∼ 75°), and the projected velocities of the molecular gas near the galaxy centers are ∼300 km s−1 in NGC 1380 and ∼500 km s−1 in NGC 6861. We fit thin disk dynamical models to the ALMA data cubes to constrain the masses of the central black holes (BHs). We created host galaxy models using Hubble Space Telescope images for the extended stellar mass distributions and incorporated a range of plausible central dust extinction values. For NGC 1380, our best-fit model yields M
BH = 1.47 × 108
M
⊙ with a ∼40% uncertainty. For NGC 6861, the lack of dynamical tracers within the BH’s sphere of influence due to a central hole in the gas distribution precludes a precise measurement of M
BH. However, our model fits require a value for M
BH in the range of (1–3) × 109
M
⊙ in NGC 6861 to reproduce the observations. The BH masses are generally consistent with predictions from local BH–host galaxy scaling relations. Systematic uncertainties associated with dust extinction of the host galaxy light and choice of host galaxy mass model dominate the error budget of both measurements. Despite these limitations, the measurements demonstrate ALMA’s ability to provide constraints on BH masses in cases where the BH’s projected radius of influence is marginally resolved or the gas distribution has a central hole.
Galactic Winds across the Gas-rich Merger Sequence. II. Lyα Emission and Highly Ionized O vi and N v Outflows in Ultraluminous Infrared Galaxies
Authors: Liu 刘 Weizhe 伟哲 , Veilleux Sylvain , Rupke David S. N. , Tripp Todd M. , Hamann Frederick , Martin Crystal
Published: August 2022

This paper is the second in a series aimed at examining the gaseous environments of z ≤ 0.3 quasars and ultraluminous infrared galaxies (ULIRGs) as a function of AGN/host galaxy properties across the merger sequence. This second paper focuses on the Lyα emission and O vi 1032, 1038 and N v 1238, 1243 absorption features, tracers of highly ionized gas outflows, in ULIRGs observed with HST/COS. Lyα emission is detected in 15 out of 19 ULIRGs, and 12 of the 14 clear Lyα detections show emission with blueshifted velocity centroids and/or wings. The equivalent widths of the Lyα emission increase with increasing AGN luminosities and AGN bolometric fractions. The blueshifts of the Lyα emission correlate positively with those of the [O iii] λ5007 emission, where the latter traces the ionized gas outflows. The Lyα escape fractions tend to be slightly larger in objects with stronger AGN and larger outflow velocities, but they do not correlate with nebular line reddening. Among the 12 ULIRGs with good continuum signal-to-noise ratios, O vi and/or N v absorption features are robustly detected in six of them, all of which are blueshifted, indicative of outflows. In the combined ULIRG + quasar sample, the outflows are more frequently detected in the X-ray weak or absorbed sources. The absorption equivalent widths, velocities, and velocity dispersions of the outflows are also higher in the X-ray weak sources. No other strong correlations are visible between the properties of the outflows and those of the AGN or host galaxies.
Monte Carlo Simulations of Electron Acceleration at Bow Waves Driven by Fast Jets in the Earth’s Magnetosheath
Authors: Vuorinen Laura , Vainio Rami , Hietala Heli , Liu Terry Z.
Published: August 2022

The shocked solar wind flows around the Earth’s magnetosphere in the magnetosheath downstream of the Earth’s bow shock. Within this region, faster flows of plasma, called magnetosheath jets, are frequently observed. These jets have been shown to sometimes exhibit supermagnetosonic speeds relative to the magnetosheath flow and to develop bow waves or shocks of their own. Such jet-driven bow waves have been observed to accelerate ions and electrons. We model electron acceleration by magnetosheath jet-driven bow waves using test-particle Monte Carlo simulations. Our simulations suggest that the energy increase of electrons with energies of a few hundred eV to 10 keV can be explained by a collapsing magnetic trap forming between the bow wave and the magnetopause with shock drift acceleration at the moving bow wave. Our simulations allow us to estimate the efficiency of acceleration as a function of different jet and magnetosheath parameters. Electron acceleration by jet-driven bow waves can increase the total acceleration in the parent shock environment, most likely also at shocks other than the Earth’s bow shock.
r-process Viable Outflows are Suppressed in Global Alpha-viscosity Models of Collapsar Disks
Authors: Just O. , Aloy M. A. , Obergaulinger M. , Nagataki S.
Published: August 2022

Collapsar disks have been proposed to be rich factories of heavy elements, but the major question of whether their outflows are neutron rich and could therefore represent significant sites of the rapid neutron-capture (r-) process or dominated by iron-group elements remains unresolved. We present the first global models of collapsars that start from a stellar progenitor and self-consistently describe the evolution of the disk, its composition, and its outflows in response to the imploding stellar mantle, using energy-dependent M1 neutrino transport and an α-viscosity to approximate turbulent angular-momentum transport. We find that a neutron-rich, neutrino-dominated accretion flow (NDAF) is established only marginally—either for short times or relatively low viscosities—because the disk tends to disintegrate into an advective disk already at relatively high mass-accretion rates, launching powerful outflows but preventing it from developing a hot, dense, and therefore neutron-rich core. Viscous outflows disrupt the star within ∼100 s with explosion energies close to that of hypernovae. If viscosity is ignored, a stable NDAF with disk mass of about 1 M
☉ is formed but is unable to release neutron-rich ejecta, while it produces a relatively mild explosion powered by a neutrino-driven wind blown off its surface. With ejecta electron fractions close to 0.5, all models presumably produce large amounts of 56Ni. Our results suggest that collapsar models based on the α-viscosity are inefficient r-process sites and that genuinely magnetohydrodynamic effects may be required to generate neutron-rich outflows. A relatively weak effective viscosity generated by magnetohydrodynamic turbulence would improve the prospects for obtaining neutron-rich ejecta.
Clinical Outcome of Antiviral Therapy on COVID-19 Patients
Authors: Aliska Gestina , Putra Andani Eka , Nindrea Ricvan Dana , Utami Widy Nur , Rezvi SM
Published: August 2022

BACKGROUND: A novel coronavirus-caused pneumonia has been widespread worldwide since the end of 2019. The rapid widespread has prompted the repurposing of drugs based on promising in vitro and therapeutic results with other human coronavirus diseases. These repurposed drugs have mainly included remdesivir, favipiravir, lopinavirritonavir, ribavirin, interferons, and hydroxychloroquine.

AIM: This study aims to evaluate the efficacy of any antiviral for 2019-nCoV infection in a national referral hospital.

METHODS: This research was a retrospective study to evaluate all antiviral clinical responses used in a national referral hospital.

RESULTS: Based on gender, there is a similar frequency from all patients. Hematology, followed by cardiovascular and pulmonary disease, is the most frequent comorbidity. There is no significant difference between the two groups antiviral treatment for a length of stay parameter. The most extended length of stay is 29 days. About 64.5% of patients are cured of SARS-Cov-2 infection. In the remdesivir group, we find that the mortality is significantly high.

CONCLUSION: The clinical outcome of these antiviral treatments is similar, except for mortality. The severity of COVID-19 causes differences in mortality.
Antidiabetic Effect Test of Insulin Stem Extract (Tithonia diversifolia) Toward Streptozotocin-Induced Diabetic Rats (Rattus Norvegicus)
Authors: Suherman Suherman , Hamzah Baharuddin , Pulukadang Sri Hastuti V. , Rahmawati Sitti , Hardani Muhammad Fakhrul , Hardani Ririen , Saifah Andi
Published: August 2022

Insulin Plant is a plant that has potency to be used as an antidiabetic drug. This is due to the presence of the chemical content of alkaloids, flavonoids, saponins, tannins and polyphenols. A research on the effects of insulin antidiabetic extract stem test (Tithonia diversifolia [Hemsl] A. Gray) in the which stem insulin was extracted by maceration using 96% ethanol, antidiabetic tests conducted using test animals mice induced with streptozotocin 40 mg/kg intraperitoneally. Tested animals were Divided into 5 groups, call now was given a different treatment. The treatment I was given a suspension of 1% Na CMC as a negative control. Treatment II, III and IV administered insulin stem extract per call now with a dose of 125 mg / kg, 250 mg / kg and 500 mg / kg. Treatment of V given glibenclamide suspension as a positive control. Blood glucose levels were measured using glucometer mice. Data were Analyzed using ANOVA statistical tests at 95% confidence level. The analysis shows that the stem extract of insulin (Tithonia diversifolia) is proven to lower blood glucose levels Significantly for rats, after treatment for 14 days and the dose of insulin stem extract are effective in lowering the blood glucose level is 250 mg / kg.
Aspirin Protective Effect on Cyclophosphamide Induced Hematological Toxicity
Authors: Hashim Imad , Al-Attar Zaid , Hamdan Saba Jasim
Published: August 2022

Bone marrow toxicity is the most important factor limiting the use of cytotoxic drugs like alkylating agents in cancer treatment. Recently PG synthase enzyme inhibitors have been reported to potentiate the cytotoxic effects of these agents on cancer cells but little is known if they can affect the toxicity of these agents on bone marrow or other  tissues. Cyclophosphamide is one of the most commonly used alkylating agent. In the present work, the effect of these PG synthase enzyme inhibitors, aspirin on cyclophosphamide myelotoxicity was determined employing the peripheral blood count to reflect bone marrow injury. The effect on body weight changes caused by cyclophosphamide was also determined. Cyclophosphamide in doses of 25, 50 and 75 mg/kg i. v. produced as a dose dependent reduction in total WBC count, granulocyte, non granulocyte, and Hb% which was maximum on second day after injection and still present on 5th day post injection. It also produced a dose dependent reduction in body weight on day 5 after injection. Aspirin in doges of 75, 150 and 300 mg/kg i. m. protected against the reduction in WBC counts 'measured for 5 days after injection of cyclophosphamide (50 mg/kg). This protection was not dose dependent, though it was more optimum with 300 mg/kg and disappeared largely when a dose of 450 mg/kg was used. Aspirin did not prevent the changes in Hb% but retard the reduction in body weight caused by cyclophosphamide. It is concluded that aspirin can help to reduce injury and enhance recovery from bone marrow toxicity caused by cytotoxic agents such as the alkylating drugs cyclophosphamide for which no specific antidote is available. Aspirin produces this effect possibly by eliminating the harmful inhibitory effect of excess PGs or leukotrienes, released by bone marrow injury on growth factors of haemopoietic progenitor cells. The magnitude of this protection on WBC counts does not seem to differ between either PG synthase enzyme inhibitors or steroids when used alone or in combination although a synergistic effect in protecting erythropoiesis is observed.
The Activity of Purple Sweet Potato Extract on Antituberculosis-Induced Liver Toxicity
Authors: Artini I. Gusti Ayu , Indrayani Agung Wiwiek , Artana Gusti Ngurah Bagus , Aman Gusti Made , Dewi Ni Wayan Sucindra
Published: August 2022

BACKGROUND: The proportion of antituberculosis-induced liver injury on tuberculosis patients showed a relatively high incidence in many countries. Hepatic damage induced by antituberculosis drugs might potentially fatal. Isoniazid (INH) and rifampicin (RIF) are two main components of antituberculosis with crucial role for the incidence of liver injury. One of the herbal remedies that pose hepatoprotective action is purple sweet potato. Hepatoprotective action of purple sweet potato extract has been proved to pose antioxidant and anti-inflammatory activity.

AIM: This study was designed to analyze the effect of purple sweet potato extract on rat interleukin-6 (IL-6) and tumor necrosis factor-α _(TNF-α) level, as well as liver histopathology feature in hepatic injury induced by INH-RIF.

METHODS: This study was a randomized posttest-only control group design. Male Wistar rats (Rattus norvegicus), age 8–12 weeks, weight 180–220 g were included in this research (divided into three groups). Purple sweet potato extract was produced by maceration technique. IL-6 and TNF-α _level was measured by enzyme-linked immunosorbent assay, whereas liver histopathology examination was performed with hematoxylin and eosin staining. Statistical analysis was performed using one-way ANOVA and post hoc test.

RESULTS: Liver IL-6 level in the normal, control, and treatment groups was 2.272±0.473, 3.315 ± 0.536, and 2.548 ± 0.304, respectively (p < 0.001). Liver TNF-α _level in the normal, control, and treatment groups was 26.476 ± 1.681, 48.584 ± 1.359, and 32.547 ± 1.528, respectively (p < 0.05). Histopathology feature of the liver in the control group showed significant liver congestion, liver degeneration, liver necrosis, and infiltration of inflammatory cell. Otherwise, histopathology feature of the liver in the treatment group showed minimal lesion.

CONCLUSIONS: Purple sweet potato ethanol extract lowered the liver concentration of IL-6 and TNF-α, as well as improving liver damage in Wistar rats induced with isoniazid and rifampicin.
Persistent Inflammation Initiated by TORCH Infections and Dysbiotic Microbiome in Autism Spectrum Disorders: A Prospect for Future Interventions
Authors: Alibek Kenneth , Niyazmetova Luiza , Farmer Sean , Isakov Terence
Published: August 2022

Autism spectrum disorders (ASD) are a range of neurodevelopmental conditions that are clinically present early in childhood with the symptoms of social withdrawal and repetitive behavior. Despite an extensive research on ASD, no commonly accepted theory on the disease etiology exists. Hence, we reviewed several scientific publications, including reviews, preclinical and clinical investigations, and published hypotheses to analyze various opinions on the nature and cause of the disorder. Many studies suggest that infections and inflammation during pregnancy play a significant role in genetic and epigenetic changes in the developing fetus, resulting in an autistic phenotype in a child. Still, there is a lack of comprehensive literature about the multitude of autism inducing factors. Therefore, this article reviews and discusses available scientific evidence on the roles of viral, bacterial, fungal, and parasitic infections, overactivation of the immune system, and intestinal microflora in the pathogenesis and clinical manifestation of ASD. The overview of the scientific publications, including our own studies, suggests that TORCH infections, imbalanced microbiome, and persistent inflammation are significantly associated with the disruption of the social domain in ASD children. The ASD-related changes begin prenatally as maternal-to-fetal immune activation triggered by infection. It results in continuous low-grade inflammation and oxidative stress in a fetus, causing germline and somatic genetic changes in the developing brain and the establishment of the dysregulated immune system. These changes and dysregulations result in central  and peripheral nervous systems dysfunctions as well as other comorbid conditions found in autistic children.
Bourdieu fut-il durkheimien ?
Authors: Fabiani Jean-Louis
Published: August 2022

Il est possible d’analyser la stratégie de Pierre Bourdieu comme l’intégration du projet durkheimien dans une construction synthétique qui dépasse les limites inhérentes à chaque conceptualisation particulière et qui constitue le point de vue de tous les points de vue. Nous mobilisons ici la notion de tradition latente pour rendre compte de la proximité des attitudes scientifiques et politiques respectives de Bourdieu et Durkheim. Nous nous efforçons ensuite de montrer que l’ambition théorique de Bourdieu s’appuie sur une stratégie de réappropriation sélective qui réévalue en permanence la pertinence du concept durkheimien de société. Cet article vise à contribuer à l’histoire de nos disciplines sans se limiter à des comparaisons textuelles, comme continuent de le faire les philosophes. En multipliant les allers et retours entre les textes et leurs contextes, il s’agit d’esquisser une sociologie historique appuyée sur l’analyse des stratégies de reconnaissance dans un univers hautement compétitif.
Se (re)mettre en jeu par l’emploi. Une recherche qualitative sur la réinsertion socioprofessionnelle d’adultes en situation de grande précarité
Authors: Delmas Eve , Gilbert Sophie , Hallée Yves
Published: August 2022

Cet article aborde, à partir de récits de vie, l’expérience d’hommes engagés dans une démarche de réinsertion professionnelle après avoir été sans abri. Il éclaire les difficultés rencontrées à partir des différentes dimensions de chaque trajectoire – démontrant l’apport déterminant que représente l’étude de récits de vie dans le champ de la désaffiliation sociale. La théorie psychanalytique sert de support conceptuel à ce travail. Nos résultats indiquent que la réinsertion socioprofessionnelle repose largement sur les enjeux du rapport à soi et à autrui, souvent construit dans l’adversité et un historique douloureux. Le soutien à la réinsertion par l’emploi doit donc non seulement tenir compte de ces caractéristiques, mais aussi offrir aux usagers un cadre propice à la reconstruction de la capacité à être en lien et, plus profondément, à un travail psychique de subjectivation.
Nāgārjuna, le milieu et la vacuité
Authors: Petit Alain
Published: August 2022

On a tenté, à partir des Stances du milieu par excellence , de ressaisir le sens de la vacuité selon Nāgārjuna : cela supposait que l’on suspendît les croyances fondant l’attachement de l’ego à un « soi-même » tout autant qu’aux « choses ». Par là, on entrevoyait l’idée d’un milieu absolu, par lequel les phénomènes, vides de « nature propre », seraient interconnectés sans être assujettis aux formes conventionnelles de l’espace et du temps.
Convention and Representation in Music
Authors: Kim Hannah H.
Published: August 2022

In philosophy of music, formalists argue that pure instrumental music is unable to represent any content without the help of lyrics, titles, or dramatic context. In particular, they deny that music’s use of convention counts as a genuine case of representation because only intrinsic means of representing counts and conventions are extrinsic to the sound structures making up music. In this paper, I argue that convention should count as a way for music to genuinely represent content for two reasons. First, the view that only intrinsic ways of representing counts is too stringent. If use can ground meaning in language, then use might also ground meaning (and representation) in music, too. Second, even if we were to insist on intrinsic features, convention should count as a way for music to genuinely represent because convention is an intrinsic feature of music. Without knowledge of musical systems and encultured listening, music wouldn’t even be recognized as music, so convention is already baked into our listening practices.
Analyzing Dependence of Key Macroeconomic Variables on BSE Using Regression
Authors: Som Bhupender Kumar , Goel Himanshu
Published: August 2022

This paper aims to analyze the dependence of key macroeconomic variables on Bombay Stock Exchange (BSE) Sensex using regression modelling technique in RStudio. Monthly data points spanning a period from 2012 to 2019 has been used for the empirical investigation. The results of the model indicate that long-term interest rate (LTINT), consumer price index (CPI), and Morgan Stanley Capital International (MSCI) are found to be significant while index of industrial production (IIP) and foreign exchange (FX) are insignificant. Also, the value or r-square indicates that 93% of the variation in the dependent variable is explained by the selected independent variables. Also, the dataset was checked for normality and linearity using appropriate graphs. The results of this paper will be of immense use for the investors in predicting the stock price movement.