bluuebunny/crossref_metadata_2025 huggingface dataset:
Use, Disposal and Environmental Challenges of Insecticide Treated Nets
Authors: Kasili Sichangi , Wanjala Cornelius
Published: July 2023

Insecticide treated nets are critical tools for prevention of malaria and other mosquito-borne diseases. They have also been demonstrated to prevent nuisance and infective bites from a few other insects. Recently, there has been an increased push by the international community to eliminate malaria and therefore resources have been channelled into higher production and supply of ITNs to endemic areas, thus increasing their presence in the environment. The trend is unlikely to change given that ITNS are still strongly recommended by WHO as part of the methods with which significant reduction in malaria incidence can be achieved. ITNS are available in different physical properties and chemical treatments. Differences in physico-chemical properties do not only confer different abilities of insect bite protection, but they also determine the extent of environmental degradation caused especially when proper disposal guidelines are not followed. Environmental pollution may pose human health risks as well as affecting susceptible organisms within vulnerable ecosystems. Owing to the undesirable effects of treated net associated environmental pollution, there is increasing advocacy for and research in the improvement of these important tools to standards of degradable materials and natural chemicals with little or no effect to the environment. This paper reviews the bednet properties, their use and misuse, disposal and environmental pollution that arises from their misuse and incorrect disposal. To do this, Dimensions scientific research database was queried using predetermined and appropriate search words. Recommendations for changes of materials and chemical treatments are provided.
Transfer Learning Technique for Covid-19 Screening from CT-Scan: An Empirical Approach
Authors: Assudani Manish K. , Sahu Dr. Neeraj
Published: July 2023

As a result of the Covid-19 pandemic, the field of Medical Sciences has been challenged with new challenges and benchmarks for development. Front line workers are overcoming the Covid-19 challenge with four steps: Screening and Diagnosis, Contact Tracing, Drug and Vaccine Development, and Prediction & Forecasting. Following the above segments carefully can save millions of lives. Artificial Intelligence has proven invaluable in predicting critical factors in many fields. With the ability of AI to process huge databases and conclude with high precision, we are motivated to use AI to screen and diagnose the Covid-19 pandemic. This paper examines the strategic use of Transfer Learning for screening and diagnosis of Covid-19 Patients. The Xception model is used to categorize Covid-19 infected patients. Our proposed Xception model has achieved better Accuracy, Sensitivity and Specificity as compared with state-of-the-art models.
The impact of Covid-19 on the Tourism and Accommodation Sector in Lithuanian Rural Areas
Authors: Kriaučiūnas Edis , Liutikas Darius , Burneika Donatas
Published: July 2023

This article aims (1) to underline the level of impact of COVID-19 on the accommodation sector in Lithuanian rural areas, (2) to evaluate transformation possibilities and new opportunities for rural tourism, and (3) to present a new model of the tourism future in the regions. The article discusses the historical aspects of the accommodation business in Lithuania, the territorial distribution of accommodation in rural areas of Lithuania, and the impact of the COVID-19 pandemic on the accommodation sector in rural areas. Spatial analysis, together with qualitative and quantitative methods, was used in this research. The primary data for the article were received from the questionnaires filled out by fifty representatives of the Tourism Information Centres from different Lithuanian regions. Also, the analysis is supplemented by the secondary official statistical data. The research results revealed the direct impact of COVID-19 on the accommodation sector in rural regions of Lithuania. The proposed RegTour model contributes to reducing the impact of COVID-19 on the country's economy and promoting the development of new forms of knowledge-based business and the transformation of the sector. Moreover, the research revealed the unexploited opportunities of rural tourism and the possible directions of change.
What Motivates Luxury Cruise Passengers?
Authors: Papadopoulou Georgia , Xesfingi Sofia
Published: July 2023

Given the lack of empirical research in explicating luxury cruises and travellers' motivations, the present study adds knowledge to the industry by examining cruise passengers' profiles and reasons for taking a cruise in Greece. This study offers insights into the motivations of 456 tourists who travelled to Greece for a delightful cruise experience. The population of this research consisted of passengers who disembarked at the Port of Piraeus after an 8-day cruise in the Aegean Sea. The findings pointed out that the motivation dimensions of cruise passengers are structured along three significant factors, "escape and relaxation," "culture and tradition", and "enjoyment and shopping," with the initial one being the most important. In addition, the hierarchical cluster analysis identified three clusters and the k-means cluster analysis determined the association of each member to the cluster. Finally, essential policy recommendations are given to all relevant stakeholders.
Influencia de factores limitantes en el uso adecuado del sistema de Referencias y contrarreferencias de hospitales públicos del Ecuador: caso departamento de Estomatología
Authors: Frank Alexander Pico Campaña , Gioconda Tatiana Campaña Briones , Vanessa Nicole Zambrano Vera
Published: July 2023

En el sector salud ecuatoriano existen muchos elementos burocráticos que tienen como finalidad ayudar a entregar un mejor servicio a los pacientes de las diferentes unidades médicas como hospitales, clínicas y centros de salud y a su vez facilitar la atención de estos con un lenguaje estandarizado y conciso, sin embargo, existen factores que limitan el buen uso de estos sistemas conocidos como sistema de referencias y contrarreferencias tales como desconocimiento de su uso por parte del personal o la falta de capacitación de su uso, por lo que la atención hospitalaria puede llegar a tener falencias considerables. El objetivo del presente articulo es identificar los diferentes factores limitantes que existen en el sector salud al momento de usar el sistema de referencias y contrarreferencias estipulado en el reglamento de atención al usuario del ministerio de salud pública del Ecuador, y dar algunas soluciones de corrección para disminuir las falencias en el servicio, por lo que se tomó como punto de partida el departamento de estomatología de un hospital público del Ecuador, donde se hizo un estudio cuantitativo básico comparativo con los 146 trabajadores del área entre médicos, enfermeras, auxiliares, administrativos.
Mecanismos evolutivos implicados en el miedo: una visión desde las neurociencias cognitivas
Authors: Leonardo Alejandro Peñuela Velásquez , Bolaños Nicolás Parra , Juan Sebastián Benjumea Garcés
Published: July 2023

La relevancia filogenética y ontogenética de los mecanismos implicados en la aparición y el mantenimiento del miedo, es cada vez más alta y visible, pues el miedo tiende a cambiar cuando los niveles del mismo son excesivos, traumáticos o patológicos, dando lugar a la presencia de las fobias y estando correlacionado con muchos más cuadros clínicos que resultan altamente perjudiciales para nuestra salud mental. Esta investigación es una revisión y un análisis crítico sobre el papel de la neuroeducación y de la psicología contextualista como herramientas útiles y con probada eficacia para la autorregulación y autocontrol del miedo y de diferentes tipos de patologías vinculadas al miedo, las cuales se manejarían mucho mejor, si es que incorporamos a nuestra cultura y a nuestro sistema educativo, los hallazgos de estas dos disciplinas científicas.
El Potencial de las aplicaciones gratuitas en la educación: una reflexión crítica sobre su uso durante y post la pandemia covid-19
Authors: Morocho Palacios Henry Fabricio , Cuenca Cumbicos Katheryne Mishelle , Tapia Peralta Stalin Roberto
Published: July 2023

El artículo científico "El potencial de las aplicaciones gratuitas en la educación: una reflexión crítica sobre su uso durante y post la pandemia COVID-19" examina el uso de las aplicaciones gratuitas para la educación durante y después de la pandemia COVID-19. Se realizó una revisión detallada de información y se reflexiona críticamente sobre el potencial de estas herramientas en la educación y cómo se podrían maximizar sus beneficios. Se consideran tanto los beneficios como las limitaciones del uso de aplicaciones gratuitas en la educación y se proporcionan recomendaciones sobre cómo las escuelas y universidades pueden tomar decisiones informadas en cuanto a su implementación. Se considera que el presente artículo será de valor para educadores, administradores y responsables de políticas que buscan mejorar la calidad y la accesibilidad de la educación en tiempos de crisis.
La Conservación del Medio Ambiente una Visión Desde la Política Tributaria.
Authors: Zamalloa Mora Zulemi , Solís Yépez Manuel Vicente
Published: July 2023

El ser humano ha interactuado con el medio ambiente desde el inicio de las épocas, para ello ha obtenido y utilizado todos los recursos que la naturaleza provee y que el ser humano necesita para poder subsistir, es así que, el constante crecimiento poblacional en estos últimos años ha venido ocasionando la desmedida explosión de recursos naturales, lo cual ha provocado igualmente daños grandes en el entorno que nos rodea, produciendo con ello la constante extinción de las especies así como también como el conocido cambio climático; motivo por el cual es importante tratar esta situación y al mismo tiempo revertir urgentemente sus efectos todo ello a través de la conservación de los medios naturales. La importancia del cuidado del medio ambiente radica en la importancia del mismo para todos nosotros, motivo por el cual, si se quiere asegurar la supervivencia de la especie, así como también el bienestar de los seres humanos, nos tenemos que preocupar por la protección y el cuidado del medio ambiente. Evaluar las políticas medio ambientales desde el punto de vista de la tributación ambiental, nos obliga a examinar las relaciones entre el control ambiental y la gestión macroeconómica, entendiendo las relaciones que determinan las necesidades de intervenciones microeconómicas, todo ello en concordancia a costos ambientales y precios, constituyendo con ello uno de los principales instrumentos con el propósito de trasladar las preocupaciones de tipo macro al ámbito micro, debiendo analizar para ello las propuestas de tributación ambiental de la reforma tributaria. El objetivo de la presente investigación es sistematizar las experiencias y evidencias de estudios y publicaciones respecto a la conservación del medio ambiente y las políticas tributarias en las municipalidades y conocer dentro de esto la “palabra clave de búsqueda” La metodología seleccionada para un mejor trato y selección de las investigaciones seleccionadas se utilizó la metodología PRISMA, definiendo los motores de búsqueda, la palabra clave de búsqueda, el idioma (español), así como la región donde fueron realizadas las investigaciones, lo cual nos lleva a tener 08 investigaciones útiles para la presente investigación.
Innovación en la Educación Superior: Paradigmas, Transformaciones y Buenas Prácticas Educativas.
Authors: Sosa Bueno Graciela Celedonia
Published: July 2023

El tema Proceso de Acreditación de los Institutos Superiores con carreras de modalidad dual del Ecuador. En cumplimiento de la Ley Orgánica de Educación Superior (LOES) vigente desde el 12 de octubre de 2010, normas para la garantía de la calidad educativa, en el art.101, menciona: “instituciones de Educación Superior (IES) deben cumplir con los procesos de evaluación, acreditación y aseguramiento de la calidad, para seguir en sus funciones” (LOES, 2010) . El objetivo es acreditar las Instituciones Educativas de nivel superior, Universidades, Politécnica, Institutos tecnológicos y técnicos. Evaluar la mejora continua de cada IES, este proceso de evaluación no es obligatorio, pero permite aclarar quienes Acreditan, estar educando con normas de calidad responsable con la sociedad, genera una educación de calidad o está encaminado a ello. Comprometidos toda la organización (directivos, administrativos, con el proceso del cambio a la mejora continua, a cortos plazos, medianos plazos y largo plazos); siendo pertinentes a la organización educativa; corresponsable ante el éxito y el fracaso de la misma. Esta investigación, tiene un enfoque descriptivo bibliográfico. Consejo de aseguramiento de la calidad de la Educación Superior (CACES), cuyo fin es crear una cultura de evaluación de la educación superior y de rendición de cuentas, contribuye a un desarrollo integral de las Instituciones Educativa Superior, respetando su identidad, sus proyectos de carreras, promoviendo la cultura de calidad y el mejoramiento continuo.
Entorno virtual de aprendizaje EDMODO para la enseñanza y aprendizaje de la contabilidad en bachillerato
Authors: Chichande Anzules Yalila Marlene , Rosado Chichande Karen Andrea
Published: July 2023

El objetivo del estudio es mejorar el proceso de enseñanza y aprendizaje de los estudiantes en la asignatura Emprendimiento y Gestión a través del uso de la plataforma educativa EDMODO. Este estudio fue llevado a cabo bajo un enfoque cuantitativo con un diseño de investigación cuasi-experimental bajo un tipo de investigación explicativa, cabe indicar que la población se conforma de 80 estudiantes de Bachillerato Técnico en Contabilidad, en donde la muestra intencional se constituye de 40 estudiantes del paralelo A. Para la recolección de los datos se utilizó el cuestionario para ser aplicado en el pretest y postest, cabe indicar que el instrumento es validado por criterio de expertos y para la obtención de los datos cuantitativos se aplicó la técnica de la estadística descriptiva. En los resultados de la investigación se determina que el mayor porcentaje de estudiantes pasaron de un dominio medio y bajo a un dominio alto luego de la implementación de una guía de actividades didácticas en EDMODO para el aprendizaje de la contabilidad básica. En las conclusiones se exponen los beneficios del uso de la plataforma implementada.
Conocimiento de los profesionales de salud sobre la Ley 3.940 que establece derechos, obligaciones y medidas preventivas de las personas afectadas por el VIH/SIDA
Authors: Díaz de Alviso Avelina , Aranda Aranda Pablo Antonio , Jacquet Tatiana , Ayala Cardozo Gabriela , Garcete Gómez Tania Carolina , Jara Pedro , Melgarejo Macarena
Published: July 2023

Esta investigacion se realizo con el objetivo de describir el conocimiento de los profesionales de salud sobre la ley 3.940  que establece derechos, obligaciones y medidas preventivas de las personas afectadas por el VIH/SIDA, en dos hospitales de la ciudad de Asucnión. La metodologia de la investigación fue de enfoque cuantitativo, no experimental y descriptivo, la tecnica de recoleccion de datos fue la encuesta. Los resultados fueron que en su mayoria los profesionales sanitarios tienen conocimeinto, sin emabrago, el pequeño grupo que desconoce los derechos,obligaciones y medidas preventivas que establece la ley para garantizar el derecho sigue constituyendo un gran un desafio para los establecimeintos de salud.
Actualización en el Diagnóstico y Manejo de la Psoriasis: Articulo de Revision
Authors: Bula Urbina Rosa Angelica , Sandra Pamela Gutiérrez Martínez  , Rodríguez Sosa Sindy , Morales Martínez Fabio Andrés , Gaines Martínez Blanca Rocío , Romero Guzman Sharik Vanessa , Araújo Rodríguez Robinson Antolín , Sequeda Arroyo Fabio , Sánchez Cera Shirley Margarita
Published: July 2023

La psoriasis es una enfermedad inflamatoria de tipo autoinmune y crónica que afecta principalmente la piel, caracterizada por la presencia de placas o descamaciones que aparecen diseminadas en el cuerpo, siendo más frecuente en zonas como cuero cabelludo, manos, plantas de los pies y zonas de flexión, sin embargo, también aparecen en tronco y extremidades. Estas lesiones se caracterizan por producir una fuerte comezon en el paciente, afectando en gran escala su calidad de vida, por lo cual, en el siguiente artículo de revisión se plantean los principales métodos diagnósticos que se aplican en la actualidad, y los mejores tratamientos establecidos para esta patología.
El liderazgo electrónico en México en tiempos de Covid-19
Authors: Vázquez Martínez Rosa Alejandra
Published: July 2023

Libro de autoría colectiva Estudios Centrados en las Ciencias Sociales. Vol. 1 Núm. 4
STRENGTHENING ONLINE COUNSELLING IN THE ERA OF THE FOURTH INDUSTRIAL REVOLUTION
Authors: Adu Gabriel Amponsah , Sarpong Reagan Adjei , Srivastava Prof. Sujata
Published: July 2023

This paper seeks to draw the educational institutions and the International counsellors' association's attention to the changes and benefits that the Fourth Industrial Revolution have brought to the counselling profession. The Fourth Industrial Revolution (4IR) is the fusion of digital, biological, and physical worlds. It is transforming institutions through new technologies such as cloud computing, artificial intelligence, the internet, robotics, 3D printing, and advanced wireless technologies. Counselling is a mature relationship in which a professionally trained counsellor meets with clients to help them solve problems that have to do with their mental, personal, social, educational, and development. It is performed in two ways, thus, face-to-face and online. Online counselling is a more modern-day approach in which counselling is done via the internet. Online counselling is one of the technological ways of delivering counselling to clients through technologies such as desktop computers, laptops, tablets, smartphones, etc. This counselling path uses platforms such as Google Hangouts, Microsoft Teams, FaceTime, WhatsApp, Skype and zoom. The paper covers the Fourth Industrial Revolution (4IR), online counselling, the benefits of online counselling and the limitations of online counselling. The paper further highlighted the suggestions for strengthening online counselling in the Fourth Industrial Revolution era.
Técnicas de controle avançado: estudo e implementação com aplicação prática
Authors: Ganzaroli Cleber Asmar , Carvalho Douglas Freire de , Couto Luiz Alberto do , Reis Márcio Rodrigues da Cunha , Dias Rafael Nunes Hidalgo Monteiro , Calixto Wesley Pacheco
Published: July 2023

Este trabalho propõe a sintonia, implementação, análise e comparação de diferentes estratégias de controle aplicadas ao mesmo sistema. Os controladores estudados são: Proporcional, Integral e Derivativo, Preditivo Não Linear, Controle Fuzzy e Controle por Modos Deslizantes. Essas técnicas são aplicadas ao controle de velocidade de um motor CC com excitação independente acionado por um retificador trifásico totalmente controlado. A metodologia propõe o projeto da bancada, a modelagem do sistema real pelo método de identificação do sistema, a análise de sensibilidade e os ajustes dos parâmetros dos controladores utilizando processo de otimização. São realizadas comparações entre as técnicas, destacando suas características e desempenho, considerando condições semelhantes de execução. A robustez de cada controle ao atuar em um sistema não linear é investigada. Todas as técnicas de controle são aplicadas em três diferentes testes: i) sinal de referência do tipo degrau, sem aplicação de carga, ii) sinal de referência com variação de amplitude, sem aplicação de carga e iii) sinal de referência do tipo degrau, com aplicação de carga. As técnicas apresentam desempenho satisfatório na execução do controle proposto, dependendo, portanto, da análise do sistema a ser implementado para determinar o método adequado.
Design and Implementation of Hybrid Exoskeleton for Oil Palm Harvester to Reduce Muscle Strain
Authors: Hazlina Selamat  , Tahmida Islam  , Mohamad Fadzli Haniff  , Ahmad Jais Alimin
Published: July 2023

When it comes to safety at the workplace, palm oil harvesters are highly exposed to body pain and muscular fatigue, which in the long term may lead to permanent spinal or shoulder damage that will undoubtedly result in different extreme societal difficulties. Meager investment in safety and long hours of manual work in awkward posture is the main challenge in ensuring safety in the palm oil field. This study aimed to develop a novel light hybrid exoskeleton exclusively built for palm oil harvesting to reduce muscular strain, maintain minimum cost, and ensure material availability in the local market. The iso-elasticity approach and DC linear motor were used for gravitational and muscular torque compensation and position control. Muscular EMG signal was taken and filtered to investigate the muscle strain reduction after implementing the developed hybrid exoskeleton. The result shows that the overall muscle strain was reduced by 16% using the passive exoskeleton and 23% using the hybrid exoskeleton compared to freehand. According to the results, it is evident that the developed exoskeleton can be implemented in palm oil harvesting, which will reduce the pain level of the workers at a significant rate.
A Centralized IOT-Based Process Cycle Time Monitoring System for Line Balancing Study
Authors: Saranjuu Chulakit  , Amirul Syafiq Sadun  , Nor Anija Jalaludin  , Jamaludin Jalani  , Suziana Ahmad  , Muhammad Haziq Md Hanapi  , Nur Aminah Sabarudin
Published: July 2023

This study proposes a Centralized IoT-based Process Cycle Time Monitoring System (CTMS) to improve the efficiency and accuracy of line balancing studies in a production line with a conveyor system. The traditional approach of measuring cycle time, typically done by manual observation and recording, can be prone to errors due to human factors such as fatigue or inaccuracies in manual recording. The proposed CTMS utilizes a combination of cutting-edge technologies such as a cloud database, android application, LABVIEW GUI, analogue infrared (IR) sensors, and appropriate controllers to improve the reliability of cycle time measurements. The system continuously monitors the production line and provides real-time data on cycle time, downtime, and other relevant metrics, allowing production engineers to quickly identify bottlenecks and areas for improvement. The results of the study demonstrate the potential of the CTMS to be applied and expanded to actual production lines with conveyor systems, providing a valuable tool for production engineers to develop strategies to reduce cycle time and ensure it is kept in check. The proposed CTMS is expected to have a positive impact on the efficiency and profitability of the production line by reducing downtime and increasing productivity.
Biogenic Synthesis and Characterization of AgNPs Using CEPS: Cytotoxicity and Antibacterial Activites
Authors: Mustafa Mudhafar  , Hasan Ali Alsailawi  , Mohammed Zorah  , Mustafa Mohammed Karhib  , Ismail Zainol  , Furqan Kifah Kadhim
Published: July 2023

This study was amid to biogenic synthesis of Silver Nanoparticles (AgNPs) and evaluated its chemical-physical and biomedical properties. The currently used reducing agent is Polyalthia sclerophylla (CEPS). As a reducer, a crude extract of Polyalthia sclerophylla leaves (CEPS) was used, while silver nitrate (AgNO3) was used as an initiator. Two samples were prepared and named AgNPs-a and AgNPs-b, respectively. The prepared samples were carried out to characterize their biological, physical, and chemical properties. Energy Dispersive X-Ray Analysis (EDX) and ultraviolet-visible spectroscopy were the first techniques utilised to emphasise the formulation of AgNPs (Uv-vis). The morphology and size of the particles are determined using scanning transmission electron microscopy (STEM) and scanning electron microscopy (SEM). AgNPs were tested for cytotoxicity against Mg-63 human cells (a type of osteosarcoma cell and its osteoblast-like cells) using the Alamar blue assay, and their antibacterial properties were investigated against Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli). The wavelength of AgNPs-a was 436 nm, while AgNPs-b was 441 nm, according to the data. According to SEM and STEM images, the shapes of the prepared samples were spherical. The particle sizes were not the same, with AgNPs-a having a diameter size range of 48nm to 68nm and AgNPs-b having a diameter size range of 59nm to 77nm. The availability of Mg-63 cells in prepared samples was greater than 89% for all concentrations. AgNPs-a inhibited bacteria growth more effectively against both bacteria, with results against S. Aureus and E. coli at 80M/ml of 24mm and 22mm, respectively, compared to AgNPs-b at the same concentration of 20mm and 18mm. According to our results obtained from chemical-physical techniques, the shapes of both AgNPs-a and AgNPs-b were similar, while the sizes of the particles were different. The antibacterial effect affects the difference as smaller sizes more inhibition for bacterial growth. The current study has shown that non-toxic produced samples can be utilised as an antibacterial agent, with nano-sizes that can be employed safely in the medical and biological areas.
Potensi Deforestasi di Pulau Kalimantan: Pro dan Kontra Migrasi
Authors: Berlianty Tryanita , Meiliana Trinita
Published: July 2023

Abstract                            The development of IKN emerged an environmental issues which have now become one of the main concerns of Indonesian citizens, many predictions of IKN have the potential for environmental aspects. The surge in migrants on the island of Kalimantan is also included in the issue of environmental concerns that will disrupt and even damage the preservation of nature in Kalimantan, so that the existence of forest migrants reaps the pros and cons of the community which is considered to give rise to the potential for deforestation. So this research tries to analyze with the theory of Libertarian thought and Capitalism. Libertarian thinking is used to analyze the perspective of society that is pro towards the existence of migrants, while Capitalism's thinking is used to analyze the perspective of the state which is used as an investor for business capital. so that the results obtained can bring out various potentials generated from each perspective.Keywords: Business capital, migration, relocation of the national capital. AbstrakPembangunan IKN melahirkan isu lingkungan yang kini menjadi salah satu perhatian utama warga Indonesia, banyak prediksi IKN yang berpotensi pada aspek lingkungan. Lonjakan migran di Pulau Kalimantan juga termasuk kedalam isu lingkungan kekhawatiran yang akan mengganggu bahkan merusak kelestarian hutan alam di Kalimantan, sehingga keberadaan migran menuai pro dan kontra masyarakat yang dianggap akan melahirkan potensi deforestrasi. Maka penelitian ini mencoba untuk menganalisa dengan teori pemikiran Libertarian dan Kapitalisme. Pemikiran Libertarian digunakan untuk mengalisis perspektif masyarakat yang pro terhadap keberadaan migran, sedangkan pemikiran Kapitalisme digunakan untuk menganalisis perspektif negara yang dijadikan sebagai ladang modal usaha investor. sehingga hasil yang diperoleh dapat memunculkan berbagai potensi yang dihasilkan dari masing-masing perspektif.Kata Kunci: Modal usaha, migrasi, Pemindahan Ibu Kota Negara
Potential Business Utilization of Liwungan Island Pandeglang Regency in Increasing Regional Original Revenue (PAD)
Authors: Ariyan Said , Nurdin Ali , Nurlia Elly
Published: July 2023

AbstractThe Liwungan Island is located in Citeureup Village, Panimbang, Pandeglang Regency, and the east of Tanjung Lesung beach which is part of the special economic zone. The island has a special attraction for tourists so it can be used as a potential business by the government and the local community. The aim of this research is to identify the potential business utilization for Liwungan Island of Pandeglang Regency and whether the business utilization can increase the Regional Original Revenue (PAD) of Pandeglang Regency. This research used a simplified scenario planning approach and uses the SWOT (strength, weakness, opportunity, treatment) analysis method to comprehensively observe various aspects that might affect the scenario to be formulated. The potential business discovered in this study in increasing PAD is the main business in the form of tourist needs and the provision of places and services for tourists, and the form of cooperation and utilization by the government and the community.Keywords: potential, business, liwungan island, pad AbstrakPulau Liwungan terletak di Desa Citeureup Kecamatan Panimbang Kabupaten Pandeglang, dan berada di sebelah timur pantai Tanjung Lesung yang merupakan bagian dari kawasan ekonomi khusus. Pulau ini memiliki daya tarik khusus bagi wisatawan sehingga dapat dijadikan potensi bisnis oleh pemerintah maupun masyarakat setempat. Tujuan dari penelitian ini yaitu untuk mengetahui bagaimana potensi pemanfaatan bisnis bagi Pulau Liwungan Kabupaten Pandeglang serta apakah pemanfaatan bisnis tersebut dapat meningkatkan Pendapatan Asli Daerah (PAD) Kabupaten Pandeglang. Penelitian ini menggunakan pendekatan perencanaan skenario (scenario planning) yang disederhanakan serta menggunakan metode analisis SWOT (strength, weakness, opportunity, treatment) untuk melihat secara komprehensif berbagai aspek yang mungmkin akan berpengaruh terhadap skenario yang akan dirumuskan. Maka potensi bisnis yang ditemukan dalam penelitian ini dalam meningkatkan PAD yaitu bisnis utama yang berupa kebutuhan wisatawan serta penyediaan tempat dan jasa layanan bagi wisatawan, serta bentuk kerja sama dan pemanfaatan oleh pemerintah dan masyarakat.Kata Kunci: potensi, bisnis, pulau liwungan, pad
Traditional, Legal, and Theological Perspectives on the Ban on Drumming and Noisemaking during the Hɔmɔwɔ Festival
Authors: Boaheng Isaac
Published: July 2023

The ban on drumming and other forms of noisemaking in the period preceding traditional festivals is not uncommon in Ghana. Every year, the Ga traditional state imposes a one-month ban on noisemaking prior to the celebration of the Hɔmɔwɔ festival. Over the years, the one-month “silence” associated with the Hɔmɔwɔ festival has resulted in several religious conflicts between the Ga Traditional Council and some Christian churches. The religious clashes became prominent in the late 1990s and have since not stopped in spite of many attempts to maintain peace in this period. This research was conducted using literature-based research methodology to assess the ban on noisemaking from the traditional and legal perspectives and to propose a way forward for future celebrations from a theological viewpoint. The paper argued that even though the demand that Christians avoid drumming and noisemaking prior to the Hɔmɔwɔ festival may be considered an infringement upon the religious rights of Christians, it is appropriate to comply with the ban to maintain peace. Complying with the ban does not mean one is compromising their faith; rather it is a step to maintain peaceful co-existence with others on a matter that is not central to the Christian faith.

Keywords: Ban, Churches, Conflict, Ga, Hɔmɔwɔ, Noisemaking
Uncorrelated Amplitude and Frequency Variations of the Harmonics in
SX Phoenicis Star XX Cygni
Authors: Niu 牛 Jia-Shu 家树 , Liu 刘 Yue 越 , Xue 薛 Hui-Fang 会芳
Published: July 2023

Harmonics are quite common in pulsating stars. They are always considered to
mimic the behaviors of their independent parent pulsation modes, and are not
taken for key information in asteroseismology. Here, we report an SX Phoenicis
star XX Cygni, whose periodogram is dominated by the fundamental frequency
f
0 = 7.41481 ± 0.00004 c day−1 and its 19 harmonics.
According to the analysis of the archival data from the Transiting Exoplanet
Survey Satellite (TESS), we find that both the amplitudes and frequencies of the
fundamental mode and the harmonics vary within TESS Sectors 14–17 and 54–57,
which might be caused by the contamination of neighboring stars. What is more
interesting is that the harmonics show significantly uncorrelated amplitude and
frequency variations over time. Some possible origins and interesting issues are
proposed to scheme further research of this hidden corner in current
asteroseismology.
FX UMa: A New Heartbeat Binary System with Linear and Nonlinear Tidal Oscillations and δ Sct Pulsations
Authors: Wang 王 Kun 坤 , Ren 任 Anbing 安炳 , Andersen Mads Fredslund , Grundahl Frank , Chen 陈 Tao 涛 , Pallé Pere L.
Published: July 2023

We present a detailed analysis of an eclipsing double-lined binary FX UMa based on TESS photometry and newly acquired spectroscopic observations. The radial velocities and atmospheric parameters for each component star are obtained from the SONG high-resolution spectra. Combined with the radial-velocity measurements, our light-curve modeling yields absolute masses and radii of the two components. The Fourier amplitude spectrum of the residual light curve reveals a total of 103 frequencies with signal-to-noise ratio (S/N) ≥ 4, including 12 independent frequencies, 17 multiples of the orbital frequency (Nf
orb), and 74 combination frequencies. Ten Nf
orb peaks with S/N > 10 have very high amplitudes and are likely due to tidally excited oscillations (TEOs). The remaining Nf
orb peaks (4 ≤ S/N ≤ 10) may be originated from the imperfect removal, or they are actually real TEOs. Four anharmonic frequencies can pair up and sum to give exact harmonics of the orbital frequency, suggesting the existence of nonlinear tidal processes in the eccentric binary system FX UMa. Eight independent frequencies in the range of 20–32 day−1 are typical low-order pressure modes of δ Scuti pulsators.
A Spectroscopic Thermometer: Individual Vibrational Band Spectroscopy with the Example of OH in the Atmosphere of WASP-33b
Authors: Wright Sam O. M. , Nugroho Stevanus K. , Brogi Matteo , Gibson Neale P. , de Mooij Ernst J. W. , Waldmann Ingo , Tennyson Jonathan , Kawahara Hajime , Kuzuhara Masayuki , Hirano Teruyuki , Kotani Takayuki , Kawashima Yui , Masuda Kento , Birkby Jayne L. , Watson Chris A. , Tamura Motohide , Zwintz Konstanze , Harakawa Hiroki , Kudo Tomoyuki , Hodapp Klaus , Jacobson Shane , Konishi Mihoko , Kurokawa Takashi , Nishikawa Jun , Omiya Masashi , Serizawa Takuma , Ueda Akitoshi , Vievard Sébastien , Yurchenko Sergei N.
Published: July 2023

Individual vibrational band spectroscopy presents an opportunity to examine exoplanet atmospheres in detail, by distinguishing where the vibrational state populations of molecules differ from the current assumption of a Boltzmann distribution. Here, retrieving vibrational bands of OH in exoplanet atmospheres is explored using the hot Jupiter WASP-33b as an example. We simulate low-resolution spectroscopic data for observations with the JWST's NIRSpec instrument and use high-resolution observational data obtained from the Subaru InfraRed Doppler instrument (IRD). Vibrational band–specific OH cross-section sets are constructed and used in retrievals on the (simulated) low- and (real) high-resolution data. Low-resolution observations are simulated for two WASP-33b emission scenarios: under the assumption of local thermal equilibrium (LTE) and with a toy non-LTE model for vibrational excitation of selected bands. We show that mixing ratios for individual bands can be retrieved with sufficient precision to allow the vibrational population distributions of the forward models to be reconstructed. A fit for the Boltzmann distribution in the LTE case shows that the vibrational temperature is recoverable in this manner. For high-resolution, cross-correlation applications, we apply the individual vibrational band analysis to an IRD spectrum of WASP-33b, applying an “unpeeling” technique. Individual detection significances for the two strongest bands are shown to be in line with Boltzmann-distributed vibrational state populations, consistent with the effective temperature of the WASP-33b atmosphere reported previously. We show the viability of this approach for analyzing the individual vibrational state populations behind observed and simulated spectra, including reconstructing state population distributions.
K2 Optical Emission from OJ 287 and Other γ-Ray Blazars on Hours-to-weeks Timescales from 2014 to 2018
Authors: Wehrle Ann E. , Carini Michael , Wiita Paul J. , Pepper Joshua , Gaudi B. Scott , Pogge Richard W. , Stassun Keivan G. , Villanueva Steven
Published: July 2023

We present second observations by K2 of OJ 287 and seven other γ-ray active galactic nuclei (AGNs) obtained in 2017–2018, second and third observations of the lobe-dominated, steep-spectrum quasar 3C 207, and observations of nine additional blazars not previously observed with K2. The AGNs were observed simultaneously with K2 and the Fermi Large Area Telescope for 51–81 days. Our full sample, observed in 2014–2018, contained 16 BL Lacertae objects (BL Lacs), nine flat-spectrum radio quasars (FSRQs), and four other γ-ray AGNs. Twelve BL Lacs and seven FSRQs exhibited fast, jagged light curves, while four BL Lacs and two FSRQs had slow, smooth light curves. Some objects changed their red-noise character significantly between repeated K2 observations. The optical characteristics of OJ 287 derived from the short-cadence K2 light curves changed between observations made before and after the predicted passage of the suspected secondary supermassive black hole through the accretion disk of the primary supermassive black hole. The average slopes of the periodogram power spectral densities of the BL Lacs’ and FSRQs’ light curves differed significantly, by ≈12%, with the BL Lac slopes being steeper, and a Kolmogorov–Smirnov test with a p-value of 0.039 indicates that these samples probably come from different populations; however, this result is not as strongly supported by power spectral response (PSRESP) analyses. Differences in the origin of the jets from the ergosphere or accretion disk in these two classes could produce such a disparity, as could different sizes or locations of emission regions within the jets.
Kinetic Alfvén Waves Excited by Multiple Free Energy Sources in the Magnetotail
Authors: Barik K. C. , Singh S. V. , Lakhina G. S.
Published: July 2023

The generation of kinetic Alfvén waves (KAWs) is investigated through a three-component theoretical model incorporating ion beam and velocity shear as the sources of free energy in a non-Maxwellian κ-distributed plasmas. The model considers Maxwellian distributed background ions, drifting-Maxwellian beam ions, and κ-electrons as its constituent species. It is found that the combination of either positive velocity shear with counter-streaming beam ions or parallel streaming beam ions with negative velocity shear favors the excitation of KAWs. The effect of the κ-parameter on the excitation of KAWs under the combined energy sources is explored. The effect of plasma parameters such as number density, propagation angle, and temperature of plasma species on the real frequency and the growth rate of KAWs are examined. For the plasma parameters pertinent to the magnetotail region of Earth’s magnetosphere, the model is able to produce KAWs in the frequency range of ≈(5–67) mHz, which matches well with the recent ‘Time History of Events and Macroscale Interactions during Substorms (THEMIS)’ observations in the near-Earth magnetotail region.
A Cross-correlation Study between IceCube Neutrino Events and the FERMI Unresolved Gamma-Ray Sky
Authors: Negro Michela , Crnogorčević Milena , Burns Eric , Charles Eric , Marcotulli Lea , Caputo Regina
Published: July 2023

With the coincident detections of electromagnetic radiation together with gravitational waves (GW170817) or neutrinos (TXS 0506+056), the new era of multimessenger astrophysics has begun. Of particular interest are the searches for correlation between the high-energy astrophysical neutrinos detected by the IceCube Observatory and gamma-ray photons detected by the Fermi Large Area Telescope (LAT). So far, only sources detected by the LAT have been considered in correlation with IceCube neutrinos, neglecting any emission from sources too faint to be resolved individually. Here we present the first cross-correlation analysis considering the unresolved gamma-ray background (UGRB) and IceCube events. We perform a thorough sensitivity study, and, given the lack of identified correlation, we place upper limits on the fraction of the observed neutrinos that would be produced in proton–proton or proton–γ interactions from the population of sources contributing to the UGRB emission and dominating its spatial anisotropy (aka blazars). Our analysis suggests that, under the assumption that there is no intrinsic cutoff and/or hardening of the spectrum above Fermi-LAT energies, and that all gamma rays from the unresolved blazars dominating the UGRB fluctuation field are produced by neutral pions from p–p (p–γ) interactions, up to 60% (30%) of such a population may contribute to the total neutrino events observed by IceCube. This translates into an O (1%) maximum contribution to the astrophysical high-energy neutrino flux observed by IceCube at 100 TeV.
Effects of Full-sphere Convection on M-dwarf Dynamo Action, Flux Emergence, and Spin-down
Authors: Bice Connor P. , Toomre Juri
Published: July 2023

We present an analysis of 21 global MHD simulations of the dynamo action taking place in the interiors of fully convective M4 stars. We leverage our past work involving 45 simulations of shell-convecting-type M2 stars in a very similar parameter space to identify properties that their dynamos share and ways in which they differ. We find that the parameter scalings of many fundamental dynamo measures including the ratio of magnetic to kinetic energy and the cycle period are shared not only between the two sets of M-dwarf models but also with the broader literature on K and G dwarfs, suggesting that their convective dynamos are similar in nature. We find that the surface fields of the fully convective stars are stronger and more organized than those in the shell-convecting models and indicate faster spin-down than is observed, for which we suggest possible remediations. We note an abundance of dynamo states that are localized within one hemisphere at a time and find that such states are well described by a quasi-linear superposition of even- and odd-parity eigenmodes with similar amplitudes. We observe that the turbulent stirring of the deep fields of the fully convective models allows them to attain far higher peak amplitudes than those in the tachoclines of the partially convective models. We employ our AI-enabled pipeline, LoopNet, to search for buoyant, fibril magnetic fields in the simulated stars and find nearly twice as many such structures forming in the M4 models, in good agreement with observed differences in their flaring rates.
The Dragonfly Galaxy. III. Jet Brightening of a High-redshift Radio Source Caught in a Violent Merger of Disk Galaxies
Authors: Lebowitz Sophie , Emonts Bjorn , Terndrup Donald M. , Burchett Joseph N. , Prochaska J. Xavier , Drouart Guillaume , Villar-Martín Montserrat , Lehnert Matthew , De Breuck Carlos , Vernet Joël , Alatalo Katherine
Published: July 2023

The Dragonfly galaxy (MRC 0152-209), the most infrared-luminous radio galaxy at redshift z ∼ 2, is a merger system containing a powerful radio source and large displacements of gas. We present kiloparsec-resolution data from the Atacama Large Millimeter/submillimeter Array and the Very Large Array of carbon monoxide (6−5), dust, and synchrotron continuum, combined with Keck integral field spectroscopy. We find that the Dragonfly consists of two galaxies with rotating disks that are in the early phase of merging. The radio jet originates from the northern galaxy and brightens when it hits the disk of the southern galaxy. The Dragonfly galaxy therefore likely appears as a powerful radio galaxy because its flux is boosted into the regime of high-z radio galaxies by the jet–disk interaction. We also find a molecular outflow of (1100 ± 550) M
⊙ yr−1 associated with the radio host galaxy, but not with the radio hot spot or southern galaxy, which is the galaxy that hosts the bulk of the star formation. Gravitational effects of the merger drive a slower and longer-lived mass displacement at a rate of (170 ± 40) M
⊙ yr−1, but this tidal debris contains at least as much molecular gas mass as the much faster outflow, namely M
H2 = (3 ± 1) × 109 (α
CO/0.8) M
⊙. This suggests that both the active-galactic-nucleus-driven outflow and mass transfer due to tidal effects are important in the evolution of the Dragonfly system. The Keck data show Lyα emission spread across 100 kpc, and C iv and He ii emission across 35 kpc, confirming the presence of a metal-rich and extended circumgalactic medium previously detected in CO(1–0).
Voyager Observations of Electron Densities in the Very Local Interstellar Medium
Authors: Kurth W. S. , Burlaga L. F. , Kim T. , Pogorelov N. V. , Granroth L. J.
Published: July 2023

The two Voyager spacecraft have now been immersed in the very local interstellar medium for several years. Both spacecraft carry a plasma wave instrument capable of detecting plasma waves that yield electron density through the determination of the electron plasma frequency. Recent observations by Voyager 1 show increases in density at shocks and pressure fronts that are commensurate with increases in the magnetic field at these structures. Voyager 1 has not observed electron plasma oscillations, thought to be a signature of a nearby shock, since 2019, although Voyager 2 continues to observe these as recently as 2022 November. Voyager 1 also detects a faint thermal emission at the electron plasma frequency that shows the evolution of the plasma density as Voyager moves deeper into the medium. Here, we show the most recent observations from both Voyagers showing the increasing densities in the region upstream of the heliopause. We also investigate the fate of solar transients as they move ever deeper into the interstellar medium.
Cosmological Information in the Marked Power Spectrum of the Galaxy Field
Authors: Massara Elena , Villaescusa-Navarro Francisco , Hahn ChangHoon , Abidi Muntazir M. , Eickenberg Michael , Ho Shirley , Lemos Pablo , Dizgah Azadeh Moradinezhad , Blancard Bruno Régaldo-Saint
Published: July 2023

Marked power spectra are two-point statistics of a marked field obtained by weighting each location with a function that depends on the local density around that point. We consider marked power spectra of the galaxy field in redshift space that up-weight low-density regions, and we perform a Fisher matrix analysis to assess the information content of this type of statistics using the Molino mock catalogs built on the Quijote simulations. We identify four different ways to up-weight the galaxy field, and we compare the Fisher information contained in their marked power spectra to that of the standard galaxy power spectrum, when considering the monopole and quadrupole of each statistic. Our results show that each of the four marked power spectra can tighten the standard power spectrum constraints on the cosmological parameters Ω
m
, Ω
b
, h, n

s
, and M

ν
by 15%–25% and on σ
8 by a factor of 2. The same analysis performed by combining the standard and four marked power spectra shows a substantial improvement compared to the power spectrum constraints that is equal to a factor of 6 for σ
8 and a factor of 2.5–3 for the other parameters. Our constraints may be conservative, since the galaxy number density in the Molino catalogs is much lower than the ones in future galaxy surveys, which will allow them to probe lower-density regions of the large-scale structure.