bluuebunny/crossref_metadata_2025 huggingface dataset:
Insider Ownership, Free Cash Flow, And Collateralizable Assets On Dividend Policy
Authors: Permatasari Maulina Dyah , Yahya Adibah , Anisa Safira Nur
Published: January 2024

The dividend is a portion of earnings decided and approved by the shareholders' meeting for distribution among shareholders. Determining the dividend distribution policy can pose challenges for companies due to conflicting interests between investors and company management. A key issue faced by companies is whether profits should be reinvested in business development, used to pay creditors, or distributed as dividends. This research aims to investigate the impact of Insider Ownership, Free Cash Flow, and Collateralizable Assets on the dividend policy of manufacturing companies listed on the Indonesia Stock Exchange between 2018 and 2021. The dividend policy is measured using the dividend payout ratio, and the study relies on secondary data collected through purposive sampling. The analytical method employed is panel data regression analysis. The findings of the study indicate that Insider Ownership has a significant influence on the dividend policy, while Free Cash Flow and Collateralizable Assets do not exhibit any significant effect on the dividend policy. However, when considering all three factors together, Insider Ownership, Free Cash Flow, and Collateralizable Assets collectively impact the dividend policy.
Production Control Using the Kanban System in the Manufacturing Industry in Indonesia: Systematic Literature Review
Authors: Kurnia Hibarkah , Irwati Dwi , Makmudah Sukron , Sofani Irgi
Published: January 2024

The existence of the manufacturing industry in Indonesia is heavily influenced by productivity so that it can compete with other countries. Productivity will not be achieved if the production process workflow does not have a manufacturing system. This is what causes requests from customers not to be fulfilled becausethere is a production process flow that still has problems with a shortage of raw materials or the quality is still below standard. This study aims to identify and analyze related to the design of work systems in the manufacturing industry in Indonesia so that customer needs can be met according to their requests. This study uses the Systematic Literature Review (SLR) method starting with journal collection, sorting journals according to topic, processing journals, and analyzing articles according to research topics. This study found several journals related to research topics based on a focus on 2016-2023. This research resulted in the year 2022 being the most published research with 5 articles, while based on the type of industry the most frequently found was the type of automotive industry with 6 articles or 30%. The theoretical implications of this research hope to add references for other researchers in their observations on the Kanban system. While realized in practice, this research serves as a guide in improving the production process flow using the Kanban system, to increase productivity in the manufacturing industry.
A Comparative Analysis of Banking’s Financial Performance before and after using E-Money
Authors: Nurastuti Preatmi , Rahman Adrianna Syariefur
Published: January 2024

This study aims to determine the comparison of the financial performance of PT. Bank Mandiri (Persero) Tbk before and after issuing e-money. By using a research period of 3 years before and 3 years after issuing e-money. Financial performance is measured by profitability ratios as seen from the Return On Assets (ROA), Return On Equity (ROE), and BOPO ratios. This research is a quantitative research. The data used in this study is secondary data, namely the financial statements of PT. Bank Mandiri (Persero) Tbk. The subject of this research is PT. Bank Mandiri (Persero) Tbk which issues e-money. Data analysis used paired sample t-test analysis. The results of this study indicate that there are significant differences in the ratios of ROA, ROE, and BOPO before and after issuing e-money
Revitalizing Quality Control Circle Program In A Hibernate Line Production PT.Toyota Boshoku Indonesia
Authors: Ismatulloh Ismatulloh , Fathurohman Fathurohman
Published: January 2024

In an effort to increase customer trust PT TBINA regularly conducts QCC activities to analyze problems that exist in the field. However, in its application, this activity is not easy to carry out in each department, for the example is the Seat Assembly which sends an average of 1 group to represent 145 employees in the TBINA internal competition for the 2017-2019 period. The number is the same as the Needle Punch line but only consisting of 12 members, different with the Welding line which can sent 12 groups of 122 members.. This study aims to increase QCC activity in the Seat Assembly line. The method used in this study is the QCC analysis method. Revitalization is carried out through a leadership approach by conducting guidance and training both for employees and for leaders, grouping employees based on age and years of service, setting activity targets, making repair and improvement plans as well as evaluating and standardizing.After the QCC activity was carried out, there was an increase in operator knowledge of QCC, this encouraged active activities which can be seen in the QCC competition in 2023 where the line seat assembly can send 9 groups to represent 100 employees. QCC also has a positive impact on the achievement of work quality and productivity in the seat assembly production line.
Determination of The Water Quality Status of The Kalimalang River In Telaga Murni Recidence, Bekasi District
Authors: Nurhidayanti Nisa , Harini Novi Justika , Riyadi Agus
Published: January 2024

The behavior of the people around the riverbanks, such as throwing garbage directly into the river body, and the river's proximity to steel-producing companies impacts river water quality. This research aims to determine the Kalimalang River water quality status in Telaga Murni housing. The sampling method used in this study is the Grab Sampling method with a combination of Purposive Sampling, which is taken from the most polluted points so that it is expected to obtain river water samples that best follow the conditions of river water quality from upstream to downstream. From the results of laboratory tests & calculations using the Storet method and Pollution Index, river water in Telaga Murni housing is classified as heavily polluted. The Phenol and Total Coliform values exceed the quality standards indicating contamination from domestic and industrial wastewater.
Market Orientation Small Medium Enterprise: A Bibliometric Analysis of Publications between 1994 and 2023 Using VOSviewer Software
Authors: Fahmi Muhammad , Prayogi Muhammad Andi , Lesmana Muhammad Taufik , Kencana Maharani Citra , Syahnita Syahnita
Published: January 2024

This paper aims To analyze the most prolific and influential articles involved in market orientation research (MO) between 1994 to 2023.  This Research paper uses bibliometric analysis techniques, quotations, and cocitations with Vosviewer software for investigated 766 publications in MO from 1994 to 2023 and uses the scopus.com database to visualize relevant articles and their results. Results of the analysis bibliometrics describe evolution research and interests scientific in market orientation over time. Study This gives more understanding _ of the focus of different studies and highlights contributor Main and Network collaboration in it. Second, literature about continued market orientation is growing and diversifying, focusing on understanding concepts and applications in the contemporary business world. While the novelty obtained from the study, This use approach bibliometric with VOSviewer and Scopus.com to analyze development literature about market orientation provides a holistic and in-depth view of relevant literature and provides  a base for development understanding and application draft market orientation.
استئجار الاصول الثابتة
Authors: غباشي محمد
Published: January 2024

The following a bstracts are short synopses of articles appearing in the Arabic part of the Review.They are summarized here for the benefit of those whocannot read Arabic. In a like manner, each major English or French article is presented as a short resume in the Arabic section.
AGRICULTURE AND SOCIO-ECONOMIC CHANGE IN THE REGION OF MSELLATA, TRIPOLITANIA
Authors: J. M. Hilal
Published: January 2024

Olive cultivation in Msellaía has been the tradition al of livelihood for a long period of time, probablv since the Roman period. In 1964, the area had approximately 140,000 producing olive trees. That is, an average of 10 trees per head Further- ;nost olive F.arde\žs are also sown with cereals. The distribution of land in the area averaged (in 1964) 10 hectares per household l . Most of the land is usually sown with barley and the rest with wheat. Barley is sown between October and January and harvested in April or M ay. It is cultivated for domestic and animal consumption, and as a cash crop
( دروس للاقتصاد الليبي )
Authors: سلیمان د.حسن
Published: January 2024

تضمن عملية النمو الاقتصادي تحقيق زيادات في الانتاج لاشباع الحاجات المتزايدة للمجتمع وتتأتي هذه الزيادات عن طريقتين : أولا زيادة استخدام الموارد الاقتصادية . وثانيا زيادة الكفاءة أو المقدرة الانتاجية لهذه الموارد ، وسیکون گلامنا منصبا على الجانب الثاني ، وتظهر أهمية هذا العامل من حقيقة أن عرض الموارد الاقتصادية ، وخاصة البشرية (*) محدود و الطلب على الحاجات في تزايد 

(*) محاضر في كلية الاقتصاد والتجارة - بنغازی . (و) تنطبق هذه الناحية على الدول الصناعية التي يعتبر فيها العمل عنصرا نادرا. 

كذلك فان الدول النامية تفتقر إلى الخبرات وبالتالي فان هذا النوع من العمل يعتبر فيها عنصرا محدودا . 

دراسات في الاقتصاد وادارة الاعمال 

. 

مستمر مما يدعو الى ضرورة توفير أكبر كمية من البضائع والخدمات من الموارد المحدودة . ونظرا لتزايد حاجات الانسان على مر الزمن ولاجل امکان احتياجات المجموعات التي لا تزال كثير من طلباتها غير مشبعة فان هذا الوضعية تدعو المهتمين على مختلف الأصناف الى العمل على زيادة الانتاج.. الخصوص قدم الأستاذ 

G. LARKE 

بعض الأرقام التي تشير ال احتياجات الولايات المتحدة من البضائع والخدمات ستزداد ، خلال العقد انعا بمقدار 40. بينما قوة العمل ستزداد بمقدار 14. وعليه فهو يؤكد على زيادة الانتاج عن طريق زيادة الانتاجية ا. 

والانتاجية ، رغم تطورها الحديث ، أصبحت موضوعا يحتل مركز الصدارة في كل الموضوعات الاقتصادية في وقتنا الحاضر . وبهذا الخصوص أشار الاستاذ G, T. STIGLER 

الى أن الانتاجية بدأت تحتل مكانة فريدة وهامة في تاريخ البحوث الكمية»؟ . وهذه الأهمية تنبع من حقيقة أن الانتاجية تمثل المعيار الحساب كفاءة الموارد (عوامل الانتاج التي تستخدم في انتاج البضائع والخدمات. فخطط التنمية الاقتصادية تعتمد بطريقة أو أخرى على اعتبارات الانتاجية : اذ بعد تقييم الموارد للاقتصاد أو الصناعة ، يحدد المنهاج الاحسن الممكن اتباعه في توزيع الموارد على الأنواع المختلفة للانتاج . 

ودرجة تحقيق الأهداف المرسومة ما هي في الواقع الا مفاهیم انتاجية يمكن أن يعبر عنها بمعيار کمي ، ليس هذا فحسب انما حل معظم المشكلات الاقتصادية يكمن في معرفة ومعالجة الموضوعات المتعلقة بالانتاجية : فالاسعار والتكاليف وبقية الظواهر الاقتصادية كالتوزيع مثلا تتأثر وتتحدد بكفاءة عوامل الانتاج . ومن ثم فان الحصول على أحسن النتائج يحفز الى سلوك السبيل الذي يحقق 

(1) 

See Robert A. Sulermeister, 'People and Productivity', McGraw-Hill Series in Management, 1963, p. 1. hthe Concepts of Productivity and Its Corollaries" in 'Productivity Meas ment, Concepts, Vol. 1, OBBC, 1955, p. 21, 

Problems in Measuring Changes in Productivity" in 'Output Input and Productivity Measurement', CRIW, New York 1967 

"ECOLIO 

(3)
The montage of “Cine Rabeca”: music, memory and ethnography in an expanded cinema experience.
Authors: Mansur Marcia
Published: January 2024

“Cine Rabeca” is a documentary that expands onto the stage and blends live music with ethnographic archive. It is a cine-concert, where musicians Luiz Paixão and Renata Rosa are permanently on stage, dialoguing with their own filmic memories. During the performance, a new time is composed out of what is seen, heard and imagined. The passage of time is felt in the contrast between images of the rural world of Pernambuco, Brazil, in 1990-2000 and the image of the presence of the musicians on stage. In this cinematographic re-encounter with their trajectories, Paixão and Rosa improvise with their rabecas (fiddles) and recreate themselves. Through music, they circulate amongst rural and ancestral festivities and the narrative is permeated with the language of memory, which explores traces and reminiscences.Time and memory articulate themselves in a singular space that experiments with a form of collaboration between the languages of music, film, and anthropology. This paper explores the process of making this expanded documentary and how it has remained live during the last years, constantly transforming itself amongst the borders of the stage and the screen, between life and film. It shows a process of unfinishing that transcends the finalization of documentaries; of the very life that follows ethnographic recordings.
When cinema draws its inspiration from literature: Marcello Mastroianni and his literary characters’ embodiment
Authors: Călina Nicoleta , Călina Cristiana
Published: January 2024

It is since the dawn of cinema that the relationship between literature and cinema exists. Despite the profound transformations taking place in production and consumption, cinema continues to draw inspiration from literature. The increasingly important role that new technologies have in the production of spectacular effects has not eliminated the need to have subjects of proven effectiveness: the recourse to works of both classical and contemporary literature. One of the film careers that has crossed paths on many occasions with the major Italian and foreign fiction, contemporary and classic, through the interpretation of some of the most famous characters of those books is Marcello Mastroianni’s, great actor on the Italian theatrical and cinema scene.
Collaborative Filmmaking as a Tool for Decolonising Cinema. The Faire-Part Case Study
Authors: Gunella Chiara
Published: January 2024

The Faire-Part collaborative documentary, launched in 2018 by directors Anne Reijniers and Rob Jacobs from Belgium, and Nizar Saleh and Paul Shemisi from Congo, aims to challenge the stereotypical portrayal of Congo as a poverty-stricken country. The documentary showcases Kinshasa’s resistance to colonial legacies and offers a more inclusive and equitable representation of the country’s culture and history by combining the four directors’ perspectives. Despite their differing backgrounds and (hi)stories, the directors engage in inner discussions on power, representation, and power dynamics, challenging their biases and perceptions. Through collaborative storytelling, they shed light on the unknown story of Kinshasa as a city of activism, using art to educate and decolonise people. This paper argues that collaborative filmmaking, as exemplified by Faire-Part, can effectively address the colonial gaze by bringing together diverse perspectives. By showcasing the power of collaborative storytelling and the importance of challenging biases, this paper aims to contribute to a more comprehensive understanding of cinema’s role in decolonisation efforts.
The effect of cinema on human social behavior
Authors: SARWARI Moqadassa , MOHAMMADI Abbas
Published: January 2024

Humans and creatures live by communication. The start moment of existence is the beginning of communication. But communication has taken different forms in different eras. Communication may be visual, auditory or sensory. In the world of beings, one of these communication methods is used as needed. In the field of visual communication, one of the most important parts is communication through images. This type of communication has been formed since the early times of human existence. Its signs are also petroglyphs that have been found in caves since the past centuries. This relationship changed shape in different eras and turned into painting, photography, and then into cinema and television images.Apart from being an art, cinema is an audio-visual medium that uses a combination of other arts to communicate with the audience. Nowadays, it is used in various ways to establish a communication bridge between cinema producers and social audiences. Because with it, they can convey the content they want to their audience. In essence, cinema is a bridge between the film producer and the target audience. But the type of use of this powerful and effective tool is different. In European and American countries, which are the founders of this means of communication, they use it well. But in the countries of the third world, especially the countries of the Middle East, especially Afghanistan, they could not use this magical tool to establish communication in order to change their society. The reason is the lack of sufficient knowledge of psychology, sociology, cultural studies and cinema technology and the power of image art to optimally use this means of mass communication.
Metaverse film. The rising of immersive audiovisual through disrupting traditional moving image and its conventions
Authors: Martínez-Cano Francisco-Julián
Published: January 2024

The development of the metaverse and its immersive technologies has had an impact on contemporary filmmaking. Associated with the concept of metaverse are the terms “VR film”, “VR cinema”, “cinematic virtual reality”, and “metaverse film”. As new expressions of digital media, virtual reality (VR) and augmented reality (AR) have become hotbeds of groundbreaking experiments with immersive audiovisual languages that have led to the production of numerous narrative works experiences that combine the real and the virtual using immersive devices.The term ‘metaverse film” could encompass all cinematic practices related to the metaverse, including videos shot in virtual worlds such as VRChat. In a sense, machinima, or films made in the last 15 years using game engines, could therefore be said to be the origin of metaverse films. Similarly, immersive VR audiovisual storytelling is part of the cinematic practices in this emerging metamedium that immerses the viewer in parallel virtual universes and makes them part of the story.Metaverse has a disrupting potential that may add new insights to the way we think of film and storytelling. Following these ideas, we consider relevant not only for the academic field, but also for the industry to frame the “metaverse film”. Using a bibliographic and different catalogs and databases review as well as major XR sections of major film festivals as main methodology, we conducted a research that goes through the immersive audiovisual fiction produced during the last decade, with the aim to set its current state of the art that might help conceptualize the term and all that surrounds fiction and non-fiction experiences of the metamedium.
U.S. Engagement and the Conditions for China's Socialization into the Liberal International Order
Authors: Lu Yue
Published: January 2024

A long-standing narrative in U.S. engagement policy toward China draws a tacit causal link between engagement and Beijing’s socialization into the U.S.-led liberal international order (LIO).1 Amid recent decreasing faith in engagement, this article constructs a framework tailored to explaining the conditions for China’s state socialization into the hegemonic order when the U.S. tries to engage China. It contends that the socialization of a still-rising China is an arduous cause that hinges on four conditions: the accommodation of China’s interests in international institutions, the existence of a problematic situation, status recognition, and the absence of obstacles to domestic internalization. To test the socialization premise, the article applies the framework to a theoretically most-likely case of China’s socialization—U.S. post-2009 engagement with China on global climate governance. It finds that despite some ambiguous signs of state socialization, China’s adoption of the U.S.-promoted co-leader identity was primarily rooted in domestic changes in interest perception and was thwarted by domestic obstacles—economic development and energy security—to the internalization of the idea of Chinese climate leadership.
The Principles of Moderation
Authors: Ahmad Ahmad Esmayel Salem
Published: January 2024

This study aims to derive the principles that can be used to assess moderation from a Shariah perspective and consequently to safeguard the notion of Islamic moderation from trends that deviate from Islamic principles under the guise of moderation. These days moderation is synonymous of complete submission to international laws even if they contradict Sharia. This undoubtedly contradicts the true concept of moderation, which as revealed in the study means adhering to the Islamic principles without extremism or negligence. The study concludes that the most important principles for achieving moderation at both the individual and collective levels of the Muslim community lies in adherence to Quran and Sunnah while avoiding extremism and negligence. Descriptive, analytical, and historical methods of research have been used in this research article.
On the reliability of value-modulated attentional capture: An online replication and multiverse analysis
Authors: Garre-Frutos Francisco , Vadillo Miguel A. , González Felisa , Lupiáñez Juan
Published: January 2024

Stimuli predicting rewards are more likely to capture attention, even when they are not relevant to our current goals. Individual differences in value-modulated attentional capture (VMAC) have been associated with various psychopathological conditions in the scientific literature. However, the claim that this attentional bias can predict individual differences requires further exploration of the psychometric properties of the most common experimental paradigms. The current study replicated the VMAC effect in a large online sample (N = 182) and investigated the internal consistency, with a design that allowed us to measure the effect during learning (rewarded phase) and after acquisition, once feedback was omitted (unrewarded phase). Through the rewarded phase there was gradual increase of the VMAC effect, which did not decline significantly throughout the unrewarded phase. Furthermore, we conducted a reliability multiverse analysis for 288 different data preprocessing specifications across both phases. Specifications including more blocks in the analysis led to better reliability estimates in both phases, while specifications that removed more outliers also improved reliability, suggesting that specifications with more, but less noisy, trials led to better reliability estimates. Nevertheless, in most instances, especially those considering fewer blocks of trials, reliability estimates fell below the minimum recommended thresholds for research on individual differences. Given the present results, we encourage researchers working on VMAC to take into account reliability when designing studies aimed at capturing individual differences and provide recommendations to improve methodological practices.
İş-Yaşam Dengesi Açısından İşgörenin Ulaşılamama Hakkı
Authors: Boz Hüseyin , Gözen Ebru
Published: January 2024

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Diagnóstico Urbano-Ambiental Empleando la cuenca Hidrográfica como Unidad Espacial De Análisis
Authors: Covarrubias Melgar Felipe , Reyes Umaña Maximino , Ruz Vargas Manuel I. , Galán Castro Erick Alfonso , Rodríguez Herrera América Libertad
Published: January 2024

El diagnóstico propuesto explora el uso de la cuenca hidrográfica como unidad espacial de análisis urbano, con el objetivo de integrar un diagnóstico con una visión urbanoambiental que ligue las relaciones entre sociedad-ambiente que contribuya a una mejor planeación urbana. Se utiliza una metodología mixta que abarca la caracterización biótica, abiótica y socioeconómica de la ciudad de Acapulco mediante el uso de un sistema de información geográfica, complementando con métodos cualitativos como entrevistas, prospección y análisis del discurso enfocados al análisis de las personas. Los resultados muestran una forma más orgánica de entender el espacio urbano de la ciudad.  Al estudiar la relación entre las actividades económicas y de esparcimiento con los índices de marginación, surgen patrones espaciales que afectan los niveles de marginación urbana. Las entrevistas resaltan problemas socioambientales, la vulnerabilidad y los impactos sociales generador por las inundaciones debido a la urbanización en áreas inadecuadas. Este diagnóstico aporta una visión que prioriza elementos naturales como suelo, vegetación y agua frente a la expansión urbana impulsada por intereses económicos volcados al turismo.
La estructura del financiamiento y su influencia en la rentabilidad de las PYMES que cotizan en el mercado bursátil de Ecuador
Authors: Espinoza Rosero Gloria Belén , Gómez Guerrero María Belén , Zambrano Flores Jemimah Jadhira
Published: January 2024

Este estudio presenta los factores que influyen en el rendimiento financiero de las Pequeñas y Medianas Empresas PyMEs que forman parte del mercado bursátil de Ecuador. Para ello se obtuvo la información financiera de las empresas del sector de mercado de valores desde el año 2017 hasta el año 2022, de tal manera que, con los datos recopilados se realizó un estudio de alcance correlacional, en el que usando programa R Studio, se aplicó un modelo de regresión cuantílica, utilizando el retorno sobre activos (ROA) como variable dependiente, y el tamaño de la empresa y el nivel de deuda como las variables independientes. Los hallazgos obtenidos en este estudio indican que la deuda total y el tamaño, se relacionan inversa y significativamente con el ROA que es la medida de rentabilidad utilizada. Además, se puede apreciar que, para las PyMEs más rentables, es mayor la disminución en el ROA por cada incremento en la deuda. Así también, por cada incremento en el tamaño de las PyMEs, es mayor la proporción de disminución en el ROA, para las empresas más rentables.
Debilidades del garantismo en la legislación ecuatoriana
Authors: Zambrano Solórzano Wilter Ronal , Villavicencio Cedeño Nadia Karina , Menéndez Macías Fabricio Grismaldo
Published: January 2024

La Constitución de la República del Ecuador es garantista, se centra en la dignidad humana y en la vigencia de derechos y garantías, en la preeminencia de valores y principios humanistas, en la justicia y en la igualdad, y a su estricto apego. En ocasiones los órganos del Estado en sus distintas funciones incurren en abusos de poderes y violentan –o pasan desapercibido- la esencia garantista del Estado ecuatoriano. Por esto, el objetivo de esta investigación alude a determinar el garantismo como modelo en la legislación ecuatoriana y sus debilidades. El diseño de la investigación es cualitativo de tipo documental, con un nivel descriptivo, mediante la aplicación del método analítico, cuya técnica es el análisis de contenido o bibliográfico de normas, doctrinas y jurisprudencia. El garantismo representa una corriente de substrato que transforma el proceso penal para hacer prevalecer los derechos, la legalidad y anular la arbitrariedad. El sistema normativo y judicial penal de Ecuador debe equilibrar las tensiones entre el garantismo y el punitivismo, por eso es esencial reconocer y aplicar el constitucionalismo garantista en disposiciones penales, dado que es ahí donde se contraponen la protección de los derechos y la posibilidad de restricción de los mismos. El eventual debilitamiento del garantismo implicaría un debilitamiento de las normas e instituciones constitucionales.
Educación en ciudadanía global. Un diálogo de voces sugerentes y emergentes sobre las posibilidades de convivencia humana en el futuro
Authors: Morales Carrero Jesús Alfredo
Published: January 2024

El compromiso con la coexistencia humana constituye uno de los propósitos subyacentes de los sistemas políticos y educativos a nivel mundial, pues de su consolidación efectiva se derivan posibilidades para sustanciar la transcendencia del género humano en condiciones dignas, armónicas y justas. Esta investigación como resultado de una revisión documental, tiene como objetivo construir un acercamiento teórico-conceptual y epistémico a la idea de educación en ciudadanía global, como el proceso de transformación social multidimensional que procura ampliar el sentido de apertura hacia la diversidad, la valoración crítica de los pluralismos y las cosmovisiones y el acogimiento pleno de las pertenencias socioculturales, como pilares fundamentales a partir de los cuales edificar una sociedad con mayor disposición hacia la inclusión, la tolerancia y el trato desde la reciprocidad. De allí, que se coloquen en diálogo una serie de voces sugerentes y emergentes, cuyo intencionalidad común gira en función de instar al sujeto a cultivar virtudes cívicas, públicas y personales que garanticen la cohesión humana con independencia de los individualismos, fundamentalismos e ideologías. Se concluye, que en momentos de crisis por convivencia la educación en ciudadanía global se erige como la alternativa para lograr la revitalización del tejido social y el resguardo de la dignidad humana.
La educación remota en el contexto de emergencia por COVID-19. Una mirada desde la Escuela de Trabajo Social de la Universidad del Zulia
Authors: Sáez González Raquel , Rujano Roque Raima
Published: January 2024

El objetivo del artículo consistió en reflexionar acerca del impacto de la educación remota en el contexto de la pandemia por COVID 19 en la formación profesional de los estudiantes de Trabajo Social, de la Universidad del Zulia. Metodológicamente se realizó un análisis de las propuestas educativas a nivel internacional, nacional y local ante la emergencia del COVID-19, utilizando la técnica de observación documental. Los resultados resaltan que, la nueva modalidad en línea ocasionó grandes retos y desafíos tanto para alumnos como para los docentes y administradores de políticas educativas; por lo que, urgen condiciones institucionales que permitan migrar a la modalidad semipresencial. Se concluye que, la pandemia del COVID 19 implicó cambios a nivel mundial y, en el caso venezolano, agudizó de manera implacable las condiciones de vulnerabilidad que estaban presentes en el país y sus instituciones desde el 2018.
Soy docente 4.0: Perspectiva actitudinal
Authors: Rodríguez Estévez Yeisa
Published: January 2024

La propuesta Soy Docente 4.0 surgió en medio de la pandemia por la COVID 19, ya que el confinamiento replanteó la educación mediada por tecnologías y permitió reflexionar sobre las habilidades mínimas necesarias para la docencia, de cara a la apropiación de habilidades tecnológicas, en el marco del contexto de la Web 4.0. Esta perspectiva se convirtió en una referencia comparativa de la práctica docente, promoviendo el uso de herramientas, aplicaciones, programas y/o plataformas que son potenciadoras para el diseño didáctico y para la producción de saberes colectivos. Ser docente 4.0 implica: saber investigar, generar diseños en contexto de la web 4.0, que parten de una intención educativa clara, coherente con el nivel o área, y en el que se aprovechan las oportunidades tecnológicas actuales. También significa gestionar formación, considerando las particularidades estudiantiles, proponer evaluaciones sentidas y significativas, ajustar constantemente los diseños educativos, y por último trabajar en red con colegas, para la entreayuda permanente. En esta propuesta, además de conceptualizar, se presentan algunos rasgos característicos de la práctica docente 4.0 desde la perspectiva de la autora.
Distribution of Hα Emitters in Merging Galaxy Clusters
Authors: Wittman David , Imani Dariush , Olden Rutger Hartmann , Golovich Nathan
Published: January 2024

Studies of star formation in various galaxy cluster mergers have reached apparently contradictory conclusions regarding whether mergers stimulate star formation, quench it, or have no effect. Because the mergers studied span a range of time since pericenter (TSP), it is possible that the apparent effect on star formation is a function of the TSP. We use a sample of 12 bimodal mergers to assess the star formation as a function of TSP. We measure the equivalent width of the Hα emission line in ∼100 member galaxies in each merger, classify galaxies as emitters or nonemitters, and then classify emitters as star-forming galaxies (SFGs) or active galactic nucleus (AGN) based on the [N ii] λ6583 line. We quantify the distribution of SFG and AGN relative to nonemitters along the spatial axis defined by the subcluster separation. The SFG and AGN fractions vary from merger to merger but show no trend with TSP. The spatial distribution of SFG is consistent with that of nonemitters in eight mergers, but show significant avoidance of the system center in the remaining four mergers, including the three with the lowest TSP. If there is a connection between star formation activity and TSP, probing it further will require more precise TSP estimates and more mergers with TSP in the range of 0–400 Myr.
Measuring the Milky Way Vertical Potential with the Phase Snail in a Model-independent Way
Authors: Guo Rui , Li Zhao-Yu , Shen Juntai , Mao Shude , Liu Chao
Published: January 2024

The vertical phase-space spiral (snail) is a direct sign of disequilibrium of the Milky Way’s disk. Nevertheless, the wrapping of the phase snail contains information on the vertical potential. We propose a novel method to measure the vertical potential utilizing the intersections between the snail and z/V

z
axes, for which we know the maximum vertical heights (Z
max) or velocities (

V

z
,
max

). Using a refined linear interpolation method, we directly obtain

(

Z

max

,

1

2

V

z
,
max

2

)

for these snail intersections to constrain the vertical potential profile empirically. Our method is model-independent, since no assumptions about the snail shape or the vertical potential have been made. Although the snail binned by the guiding center radius (R

g
) is more prominent, it traces a vertical potential shallower than that of the snail binned by the same galactocentric radius (R). We apply an empirical method to correct this difference. We measure the snail intersections in several R

g
bins within 7.5 < R

g
< 11.0 kpc for Gaia DR3 and apply the interpolation method to deduce the potential values at several vertical heights. The potential at the snail intersections, as well as the following mass modeling, is consistent with the popular Milky Way potentials in the literature. For the R

g
-binned phase snail in the solar neighborhood, the mass modeling indicates a local dark matter density of ρ
dm = 0.0150 ± 0.0031 M
⊙ pc−3, consistent with previous works. Our method could be applied to larger radial ranges in future works to provide independent and stronger constraints on the Milky Way’s potential.
Identification of Galaxy Protoclusters Based on the Spherical Top-hat Collapse Theory
Authors: Lee Jaehyun , Park Changbom , Kim Juhan , Pichon Christophe , Gibson Brad K. , Shin Jihye , Kim Yonghwi , Snaith Owain N. , Dubois Yohan , Few C. Gareth
Published: January 2024

We propose a new method for finding galaxy protoclusters that is motivated by structure formation theory and also directly applicable to observations. We adopt the conventional definition that a protocluster is a galaxy group whose virial mass M
vir < M
cl at its epoch, where M
cl = 1014
M
⊙, but would exceed that limit when it evolves to z = 0. We use the critical overdensity for complete collapse at z = 0 predicted by the spherical top-hat collapse model to find the radius and total mass of the regions that would collapse at z = 0. If the mass of a region centered at a massive galaxy exceeds M
cl, the galaxy is at the center of a protocluster. We define the outer boundary of a protocluster as the zero-velocity surface at the turnaround radius so that the member galaxies are those sharing the same protocluster environment and showing some conformity in physical properties. We use the cosmological hydrodynamical simulation Horizon Run 5 (HR5) to calibrate this prescription and demonstrate its performance. We find that the protocluster identification method suggested in this study is quite successful. Its application to the high-redshift HR5 galaxies shows a tight correlation between the mass within the protocluster regions identified according to the spherical collapse model and the final mass to be found within the clusters at z = 0, meaning that the regions can be regarded as the bona fide protoclusters with high reliability. We also confirm that the redshift-space distortion does not significantly affect the performance of the protocluster identification scheme.
Spherical Harmonics for the 1D Radiative Transfer Equation. II. Thermal Emission
Authors: Rooney Caoimhe M. , Batalha Natasha E. , Marley Mark S.
Published: January 2024

Approximate methods for radiative transfer equations that are fast, reliable, and accurate are essential for the understanding of atmospheres of exoplanets and brown dwarfs. The simplest and most popular choice is the “two-stream method,” which is often used to produce simple yet effective models for radiative transfer in scattering and absorbing media. Toon et al. (hereafter, Toon89) outlined a two-stream method for computing reflected light and thermal spectra that was later implemented in the open-source radiative transfer model PICASO. In Part I of this series, we developed an analytical spherical harmonics method for solving the radiative transfer equation for reflected solar radiation that was implemented in PICASO to increase the accuracy of the code by offering a higher-order approximation. This work is an extension of this spherical harmonics derivation, to study thermal emission spectroscopy. We highlight the model differences in the approach for thermal emission and benchmark the four-term method (SH4) against Toon89 and a high-stream discrete-ordinates method, CDISORT. By comparing the spectra produced by each model, we demonstrate that the SH4 method provides a significant increase in accuracy, compared to Toon89, which can be attributed to the increased order of approximation and to the choice of phase function. We also explore the trade-off between computational time and model accuracy. We find that our four-term method is twice as slow as our two-term method, but is up to five times more accurate, when compared with CDISORT. Therefore, SH4 provides excellent improvement in model accuracy with minimal sacrifice in numerical expense.
Evidence of a Thick Heliopause Boundary Layer Resulting from Active Magnetic Reconnection with the Interstellar Medium
Authors: Turner Drew L. , Michael Adam , Provornikova Elena , Kornbleuth Marc , Opher Merav , Eriksson Stefan , Lavraud Benoit , Mostafavi Parisa , Hill Matthew E. , Brandt Pontus , Cohen Ian J. , Westlake Joseph , Richardson John D. , Schwadron Nathan A. , McComas David J.
Published: January 2024

Voyager 1 and 2 data from the vicinity of the heliopause and very local interstellar medium are reexamined to better understand the confounding lack of rotation in the magnetic field (B-field) across the heliopause observed by both Voyagers, despite their very large spatial separations (>100 au). Using three estimates for the orientation of the B-field in the pristine interstellar medium and four models of the heliosphere, we calculate draped interstellar B-field orientations along the model heliopauses and compare those estimates to the Voyager observations. At both Voyagers, expected draped B-fields are inconsistent with the observed B-field orientations after the boundary crossings. Furthermore, we show how the longer-term trends of the observed B-fields at both Voyagers after the crossings actually rotated away from both the expected draped B-field and the pristine interstellar B-field directions. We develop evidence, including an illustrative and analogous set of observations from Magnetospheric Multiscale spacecraft along Earth’s magnetopause, in support of a hypothesis that both Voyagers transited a thick boundary layer of reconnected magnetic flux along the heliopause surface. We estimate that Voyager 1 has not yet fully transited this boundary layer, the radial thickness of which at the Voyager 1 crossing location may be >18 au and likely much thicker. Meanwhile, at Voyager 2's crossing location, the boundary layer is likely much thinner, and for Voyager 2, we present evidence that Voyager 2 might already have transited the boundary layer and entered a region of fields and plasma that were never connected to the Sun—the very local interstellar medium.
Magnetic Fields and Plasma Heating in the Sun’s Atmosphere
Authors: Judge P. , Kleint L. , Casini R. , de Wijn A. G. , Schad T. , Tritschler A.
Published: January 2024

We use the first publicly available data from the Daniel K. Inouye Solar Telescope to track magnetic connections from the solar photosphere into the corona. We scrutinize relationships between chromospheric magnetism and bright chromospheric, transition region, and coronal plasmas. In 2022 June, the Visible Spectro-Polarimeter (ViSP) instrument targeted unipolar network within a decaying active region. ViSP acquired rastered scans with longitudinal Zeeman sensitivities of 0.25 Mx cm−2 (Fe i, 630.2 nm) and 0.5 Mx cm−2 (Ca ii, 854.2 nm). ViSP was operated in a “low” resolution mode (0.″214 slit width, spectral resolution

R
≈
70,000

) to produce polarization maps over a common area of 105″ × 50″. Data from the Solar Dynamics Observatory and Interface Region Imaging Spectrograph are combined to ask: Why is only a fraction of emerging flux filled with heated plasma? What is the elemental nature of the plasmas? No correlations were found between heated plasma and the properties of chromospheric magnetic fields derived from the weak field approximation, on scales below supergranules. Processes hidden from our observations control plasma heating. While improved magnetic measurements are needed, these data indicate that “the corona is a self-regulating forced system.” Heating depends on the state of the corona, not simply on boundary conditions. Heating models based upon identifiable bipolar fields, including cool loops, tectonics, and observable magnetic reconnection, are refuted for these regions with unipolar chromospheric magnetic fields.
Detecting Fast Radio Bursts with Spectral Structure Using the Continuous Forward Algorithm
Authors: Kumar Pravir , Zackay Barak , Law Casey J.
Published: January 2024

Detecting fast radio bursts (FRBs) with frequency-dependent intensity remains a challenge, as existing search algorithms do not account for the spectral shape, potentially leading to nondetections. We propose a novel detection statistic, which we call the Kalman detector, that improves the sensitivity of FRB signal detection by incorporating spectral shape information. The detection statistic is based on an optimal matched filter, marginalizing over all possible intensity functions, weighted by a random walk probability distribution, considering some decorrelation bandwidth. Our analysis of previously detected FRBs demonstrates that the Kalman score provides a comparable yet independent source of information for bursts with significant spectral structure, and the sensitivity improvement is of the order 0%–200% with a median improvement of 20%. We also applied the Kalman detector to existing data from FRB 20201124A and detected two new repeat bursts that were previously missed. Furthermore, we suggest a practical implementation for real-time surveys by employing a low significance soft-trigger from initial flux integration-based detection algorithms. The Kalman detector has the potential to significantly enhance FRB detection capabilities and enable new insights into the spectral properties of these enigmatic astrophysical phenomena.
Astrochemical Diagnostics of the Isolated Massive Protostar G28.20-0.05
Authors: Gorai Prasanta , Law Chi-Yan , Tan Jonathan C. , Zhang Yichen , Fedriani Rubén , Tanaka Kei E. I. , Bonfand Mélisse , Cosentino Giuliana , Mardones Diego , Beltrán Maria T. , Garay Guido
Published: January 2024

We study the astrochemical diagnostics of the isolated massive protostar G28.20-0.05. We analyze data from Atacama Large Millimeter/submillimeter Array 1.3 mm observations with a resolution of 0.″2 (∼1000 au). We detect emission from a wealth of species, including oxygen-bearing (e.g., H2CO, CH3OH, CH3OCH3), sulfur-bearing (SO2, H2S), and nitrogen-bearing (e.g., HNCO, NH2CHO, C2H3CN, C2H5CN) molecules. We discuss their spatial distributions, physical conditions, correlation between different species, and possible chemical origins. In the central region near the protostar, we identify three hot molecular cores (HMCs). HMC1 is part of a millimeter continuum ring-like structure, is closest in projection to the protostar, has the highest temperature of ∼300 K, and shows the most line-rich spectra. HMC2 is on the other side of the ring, has a temperature of ∼250 K, and is of intermediate chemical complexity. HMC3 is further away, ∼3000 au in projection, cooler (∼70 K), and is the least line-rich. The three HMCs have similar mass surface densities (∼10 g cm−2), number densities (n
H ∼ 109 cm−3), and masses of a few solar masses. The total gas mass in the cores and in the region out to 3000 au is ∼25 M
⊙, which is comparable to that of the central protostar. Based on spatial distributions of peak line intensities as a function of excitation energy, we infer that the HMCs are externally heated by the protostar. We estimate column densities and abundances of the detected species and discuss the implications for hot core astrochemistry.
X-Rays from RS Ophiuchi’s 2021 Eruption: Shocks In and Out of Ionization Equilibrium
Authors: Islam Nazma , Mukai Koji , Sokoloski J. L.
Published: January 2024

The recurrent nova RS Ophiuchi (RS Oph) underwent its most recent eruption on 2021 August 8 and became the first nova to produce both detectable GeV and TeV emission. We used extensive X-ray monitoring with the Neutron Star Interior Composition Explorer Mission (NICER) to model the X-ray spectrum and probe the shock conditions throughout the 2021 eruption. The rapidly evolving NICER spectra consisted of both line and continuum emission that could not be accounted for using a single-temperature collisional equilibrium plasma model with an absorber that fully covered the source. We successfully modeled the NICER spectrum as a nonequilibrium ionization collisional plasma with partial covering absorption. The temperature of the nonequilibrium plasma shows a peak on day 5 with a kT of approximately 24 keV. The increase in temperature during the first five days could have been due to increasing contribution to the X-ray emission from material behind fast polar shocks or a decrease is the amount of energy being drained from the shocks into particle acceleration during that period. The absorption showed a change from fully covering the source to having a covering fraction of roughly 0.4, suggesting a geometrical evolution of the shock region within the complex global distribution of the circumstellar material. These findings show evidence of the ejecta interacting with some dense equatorial shell initially, and with less dense material in the bipolar regions at later times during the eruption.