bluuebunny/crossref_metadata_2025_split huggingface dataset:
A New Soft-switched Flyback Converter with a Minimum Number of
Elements and High Efficiency
Authors: Vesali Mahmood , Ranjbar Hosein , Rabiei Mostafa 
Published: June 2023

Background:
This paper proposes a new soft-switching flyback converter with a simple structure and high efficiency. The proposed converter has zero current switching conditions for the turning-on distance and zero voltage switching conditions for the turning-off distance of the switch.

Objective:
With a minimum number of elements, a soft switching condition is created for all semiconductor devices, and high efficiency is obtained.

Methods:
To create the ZCS condition, an inductor is used, and when the switch is turned on, the current due to the existence of this inductor increases slowly. But when the switch is turned off, this inductor has an energy that suddenly discharge on the switch, which is then controlled by a capacitor and discharged in capacitor. Then when the energy is discharge in capacitor, this capacitor is connected to the switch, which increases the voltage of the switch slowly and ZVS condition is stablished. Also the energy of leakage inductance in this state is discharged in that same capacitor which eliminates destructive effect of this inductor.

Results:
A prototype of the proposed converter is implemented and tested in 60 W power. The experimental results verified theoretical analysis and shown that soft switching condition is established. Also 92% efficiency at full load is obtained, which shows the efficiency has increased. The current of the diodes in experimental results shows that when the diodes are turned off, ZCS condition is created, therefore reverse recovery problem of the diodes does not exist.

Conclusion:
Therefore, the proposed converter has high efficiency and simple structure, which is suitable to convert AC voltage to DC voltage for the devices power supply.
Toro Muerto. Rumbo al Patrimonio Mundial
Authors: González Madueño Consuelo 
Published: June 2023

El arte rupestre es la más antigua y extendida manifestación de la espiritualidad humana y como todo patrimonio cultural, necesita de un reconocimiento por parte de la sociedad para ser valorado, protegido, conservado, investigado y difundido, de esta necesidad nace la presente obra titulada Toro Muerto. Rumbo al Patrimonio Mundial. Ubicado en la provincia de Castilla en Arequipa, Toro Muerto está considerado como uno de los más grandes e importantes sitios de arte rupestre, a lo largo de 10 km2 de área hay una gran cantidad de rocas grabadas con 2584 representaciones geométricas, antropomorfas y zoomórficas. En 1951, fue descubierto para la ciencia por el Dr. Eloy Linares Málaga cuyo trabajo de investigación fue continuado con las aportaciones de Mariano de Rivero y Ustariz, Antonio Núñez, Julio Manque, José Antonio Chávez, Lucy Linares, Muriel Pozzi-Escot y Liz Gonzales.
A Text Messaging Intervention for Priming the Affective Rewards of Exercise in Adults: Protocol for a Microrandomized Trial
Authors: Mishra Sonali R , Dempsey Walter , Klasnja Predrag 
Published: June 2023

Background
Physical activity is a critical target for health interventions, but effective interventions remain elusive. A growing body of work suggests that interventions targeting affective attitudes toward physical activity may be more effective for sustaining activity long term than those that rely on cognitive constructs alone, such as goal setting and self-monitoring. Anticipated affective response in particular is a promising target for intervention.

Objective
We will evaluate the efficacy of an SMS text messaging intervention that manipulates anticipated affective response to exercise to promote physical activity. We hypothesize that reminding users of a positive postexercise affective state before their planned exercise sessions will increase their calories burned during this exercise session. We will deploy 2 forms of affective SMS text messages to explore the design space: low-reflection messages written by participants for themselves and high-reflection prompts that require users to reflect and respond. We will also explore the effect of the intervention on affective attitudes toward exercise.

Methods
A total of 120 individuals will be enrolled in a 9-week microrandomized trial testing affective messages that remind users about feeling good after exercise (40% probability), control reminders (30% probability), or no message (30% probability). Two types of affective SMS text messages will be deployed: one requiring a response and the other in a read-only format. Participants will write the read-only messages themselves to ensure that the messages accurately reflect the participants’ anticipated postexercise affective state. Affective attitudes toward exercise and intrinsic motivation for exercise will be measured at the beginning and end of the study. The weighted and centered least squares method will be used to analyze the effect of delivering the intervention versus not on calories burned over 4 hours around the time of the planned activity, measured by the Apple Watch. Secondary analyses will include the effect of the intervention on step count and active minutes, as well as an investigation of the effects of the intervention on affective attitudes toward exercise and intrinsic motivation for exercise. Participants will be interviewed to gain qualitative insights into intervention impact and acceptability.

Results
Enrollment began in May 2023, with 57 participants enrolled at the end of July 2023. We anticipate enrolling 120 participants.

Conclusions
This study will provide early evidence about the effect of a repeated manipulation of anticipated affective response to exercise. The use of 2 different types of messages will yield insight into optimal design strategies for improving affective attitudes toward exercise.

Trial Registration
ClinicalTrials.gov NCT05582369; https://classic.clinicaltrials.gov/ct2/show/NCT05582369

International Registered Report Identifier (IRRID)
PRR1-10.2196/46560
Bibliometric analysis of publications trends on the terrorism issues in Indonesia
Authors: Yumitro Gonda , Febriani Rizki , Roziqin Ali , Indraningtyas Anisa 
Published: June 2023

Introduction. The issue of terrorism in Indonesia has been a challenge around the world, particularly in a country with the world's largest Muslim population. This study aims to evaluate the trend of publications on the issue of terrorism in Indonesia in the period starting from 1980 to 2022 through a bibliometric analysis.
Data Collection Methods. Data were obtained from the Scopus database using the keywords "terrorism", "terrorist", "terror", and "Indonesia".
Data Analysis. The VOSviewer data visualization was used as a data analysis tool to show the trends in publications on terrorism issues in Indonesia.
Results and Discussion. The publication trend on terrorism in Indonesia significantly increased, with distribution countries dominated by Indonesia including authors, affiliates, and sponsors. In addition, publications on the issue of terrorism in Indonesia were widely written in journal articles, particularly in the field of social sciences.
Conclusion. The issue of terrorism in Indonesia is dynamic. This research may be used to update the understanding of current terrorism issues in Indonesia, particularly from bibliometric analysis.
Removal of Malachite Green from Aqueous Solution using Ficus Benjamina Activated Carbon-Nonmetal Oxide synthesized by pyro Carbonic Acid Microwave
Authors: Talib Khatab Emad , Salman Sami D. 
Published: June 2023

تم استخدام الكربون المنشط المشتق من المخلفات الزراعية لنبتة الفيكس بنجامينا الزراعية والمُصنَّع بواسطة طريقة الميكروويف مع حمض الفسفوريك ومعالجته بأوكسيد السيليكون (SiO2) لتعزيز قدرة الكاربون المنشط لامتزاز لصبغة الملكيت الأخضر (MG) من المحلول المائي. تم دراسة ثلاثة عوامل بأربعة مستويات للتحقق من تأثيرها على كفاءة أزالة الصيغة الملكيت الأخضر من المحلول المائي منها تركيز الصبغة، وقت الخلط وكمية الكربون المنشط. أظهرت النتائج أن جرعة 0.4 جم / لتر، تركيز صبغة 80 مجم / لتر، ومدة امتصاص 40 دقيقة كشرط أمثل للوصول الى كفاءة الإزالة بحدود 99.13٪. وقد كشفت النتائج أيضًا أن نموذج التوازن الحراري فروندليتش فضلا عن النماذج الحركية الزائفة من الدرجة الثانية كانت أفضل النماذج لوصف بيانات أمتزاز صبغة الملكيت الأخضرعند التوازن.
Formación ética del Contador Público en Instituciones de Educación Superior en Colombia
Authors: Cruz-Pérez Omar Alonso , Cordero-Díaz Marling Carolina 
Published: June 2023

El desarrollo y el poder ejecutar la profesión contable exige requerimientos delicados y de gran compromiso por parte de los profesionales, el contador público es la persona encargada de velar, procurar, garantizar el crecimiento económico en las empresas, tanto personas naturales y jurídicas que confían plenamente en estos profesionales a la hora de declarar renta o de entregar su patrimonio para el crecimiento de este mismo en el caso de las empresas. Es por este motivo que nace la necesidad de capacitar personas íntegras enriquecidas en valores éticos y morales, al momento de ejercer su profesión las personas deben ser transparentes, cultas, honestas, sobre todo académicamente idóneas y capacitadas para cumplir exitosamente su labor. La educación viene desde el hogar allí se forma el ser humano en valores y moralidad, pero esto se retroalimenta en lo que se convierte en un segundo hogar; la escuela, colegio, universidad, el contador público es un profesional que por medio de su labor está capacitado para dar fe pública y esta nace según la importancia y prioridad que se le tome a la profesión, esto lo podemos verificar por medio del pensum o programa académico según cada instituto de educación superior, si están perfectamente alineados según lo indica la norma en el país, ya que el gobierno estableció parámetros no solo para la educación contable sino para la comunidad educativa en general. Pues se hace necesario que todas las personas independientemente de su carrera profesional sean un ejemplo y crecimiento para la sociedad, aptos y capaces de enfrentar retos y sobre todo de adoptar la globalización que es lo que buscan las empresas añadiendo que gracias a las normas contables internacionales de contabilidad esto ya es hoy para muchas empresas un sueño hecho realidad.
Devolución del IVA y su incidencia en la liquidez de las pymes Avicultoras del municipio de Cúcuta
Authors: Benavides-Peñaranda Mayra Lisbeth 
Published: June 2023

La presente investigación tiene como objetivo determinar la incidencia de la devolución del IVA en la liquidez de las pymes avicultoras del municipio de Cúcuta, para ello se realizó un proceso de reconocimiento de literatura sobre devolución de efectivo a favor y se analizaron los estados financieros de avicultores del municipio de Cúcuta, usando indicadores de liquidez como lo son capital de trabajo, razón social, prueba ácida y endeudamiento a corto plazo, donde se reveló que de los casos de avicultores estudiados dos recibieron entre los años 2019 y 2020 recibieron $40.161.472 por concepto de devolución de IVA o saldo a favor, conociendo que por el efectivo recibido en compensación tuvo un aumento en su capital de trabajo el avicultor número 2 ya que sus pasivos corriente no tuvieron un alto crecimiento y obtuvieron una razón corriente >1 contando con recursos suficientes para deudas a corto plazo y una prueba ácida >1 lo cual significa que tienen una buena liquidez sin afectar sus activos, concluyendo que al investigar sobre el tema vemos como este saldo a favor ayuda en gran parte a los avicultores del municipio y de todo norte de Santander para que la liquidez de sus empresas tengan un buen balance, no se deben presentar casos como el avicultor número 4 donde por un descuido de presentar de forma extemporánea no le permita durante todo ese tiempo una buena solvencia y además afecta su liquidez, donde no pueda responder con sus obligaciones.
Making the Case for Diversity: Exploring the Use of Case Studies for Underrepresented Minorities in the Accounting Curriculum
Authors: Pelzer Josette R. E. , Booker Danielle , Pencle Nadra , Brown Veena L. 
Published: June 2023

ABSTRACT
This study explores the viability of case studies as a tool to help advance efforts toward decolonization of the accounting curriculum by incorporating the perspectives and experiences of underrepresented minorities (URMs). We evaluate the current level of representation in accounting case studies, and faculty willingness to use more representative case studies. We evaluate faculty responses using the Banks (2014) curriculum transformation framework. Hand-collected case study data for 2015–2021 reveal that only two of 351 case studies have URM representation. Survey responses indicate faculty are willing to make less disruptive diversity, equity, and inclusion (DEI)-related curricular changes, but also provide evidence of barriers to changes which would require significant content modifications. We offer recommendations to increase URM representation in case studies and overcome these barriers, advancing toward a curriculum that better reflects URMs’ views and prepares students to better interact and collaborate effectively within a diverse workforce.
Cybersecurity Breach at a Big 4 Accounting Firm: Effects on Auditor Reputation
Authors: Litt Barri , Tanyi Paul , Weidenmier Watson Marcia 
Published: June 2023

ABSTRACT
Public company investors rely on the Big 4 audit firms to provide assurance over internal controls and financial reporting. What, then, would happen if one of these very assurance providers suffered its own cybersecurity breach? We examine such an event in the major data breach of Deloitte in 2017. Using U.S. data from 2014 to 2019, we find Deloitte suffered significant reputational damage postbreach. Specifically, audit clients and existing shareholders became less likely to approve of Deloitte as the company’s auditor. Deloitte also charged lower audit fees after the incident. Furthermore, Deloitte’s audit clients suffered significant negative market reactions postbreach. Our results suggest pervasive implications of cyberattacks on auditor reputation and support recent congressional efforts to expand regulation in this area.
Labor Market Institutions, Environmental Disclosure, and Environmental Impacts
Authors: Chu Hsuan-Lien , Liu Nai-Yng , Tsang Albert 
Published: June 2023

ABSTRACTWe examine how country-level labor market characteristics affect corporate environmental disclosure practices and the environmental impacts of firms’ operations. Using a sample of firms from 36 countries over the 2005–2016 period, we show that firms domiciled in countries with more developed labor markets have higher levels of environmental disclosure and less damaging environmental impacts than firms in countries with less developed labor markets. In addition, we find that firms operating in countries with better-developed labor markets tend to reduce their environmental impacts through the purchase of goods and services rather than through substantive changes to their own operations. Taken together, the findings suggest that better-developed country-level labor market institutions play an important role in improving firms’ environmental disclosure and in reducing their environmental impacts.
Model Discovery Learning Berbasis STEAM: Dampaknya Terhadap Hasil Belajar IPA dan Keterampilan Proses Sains Siswa
Authors: Kusumayuni Putu Netha , Suarni Ni Ketut , Margunayasa I Gede 
Published: June 2023

Kondisi pandemi menyebabkan proses pembelajaran menjadi terbatas dan berdampak pada kurang optimalnya penerapan model pembelajaran inovatif guna peningkatan hasil belajar IPA dan keterampilan proses sains siswa. Penelitian ini bertujuan untuk menganalisis model discovery learning berbasis STEAM terhadap hasil belajar IPA dan keterampilan proses sains siswa kelas V SD. Penelitian eksperimen semu (Quasi Eksperimen) ini menggunakan rancangan Posttest-Only Control Group Design. Populasi penelitian adalah seluruh siswa kelas V SD, yang terdiri dari 457 orang siswa. Sebanyak 71 siswa sebagai sampel yang ditentukan dengan teknik group random sampling. Data hasil belajar IPA dikumpulkan dengan tes pilihan ganda, sedangkan data keterampilan proses sains dikumpulkan menggunakan lembar observasi. Data dianalis dengan MANOVA. Hasil penelitian menunjukkan terdapat perbedaan hasil belajar IPA siswa yang mengikuti pembelajaran model discovery learning berbasis STEAM dengan pembelajaran konvensional. Terdapat perbedaan keterampilan proses sains antara siswa yang mengikuti pembelajaran model discovery learning berbasis STEAM pembelajaran konvensional kelas. Terdapat perbedaan hasil belajar IPA dan keterampilan proses sains secara simultan antara siswa yang mengikuti pembelajaran model discovery learning berbasis STEAM dengan pembelajaran konvensional. Simpulan penelitian ini model discovery learning berbasis STEAM berpengaruh terhadap hasil belajar IPA dan keterampilan proses sains siswa kelas V SD.
Human-Engineered Self-Replicating Machines
Authors: Sewell Granville 
Published: June 2023

Abstract
How close are we really to a human-engineered self-replicating machine? A couple of thought experiments are proposed which help explain why such machines are still far beyond current human technology. And I conclude that we are unlikely to be successful in explaining how the self-replicating machines we see everywhere in the living world could have arisen through entirely natural causes, when we still do not know how such machines could be designed.
First Report of Direct Damage Caused by the Stubby-Root Nematode, Nanidorus minor, to Strawberry (Fragaria x ananassa), in Florida
Authors: Oliveira Clemen J. , Inserra Renato N. , Desaeger Johan A. 
Published: June 2023

Abstract
In 2019–2022, declining symptoms were observed in two commercial strawberry farms in Hillsborough County, Florida. The fields in the two farms consisted of raised beds covered by plastic mulch. Both were fumigated with a mixture of 1,3-dichloropropene (40%) + chloropicrin (60%) before planting. Samples collected from large patches with declining plants were infested with stubby-root nematodes. No sting and root-knot nematode species were detected. The results of morphological and molecular analyses indicated that the stubby-root nematode populations were representative of the species Nanidorus minor. The two cultivars ‘Florida Brilliance’ and ‘Florida Sensation’ in the two fields included plants with stubby root symptoms showing a reduction in the size of the root system and arrested growth and elongation of the feeder roots on the first strawberry crop. The nematode population densities in the two fields increased at the end of strawberry season and averaged 66 and 96 specimens in 200 cm3 soil. In one of the fields, a second strawberry crop was established as in the previous year using the same practices (fumigation and raised beds covered with plastic). However, in this field the population of N. minor declined and did not reach damaging levels at the end of the season on the second strawberry crop. The factors causing the decline of the nematode population were not elucidated. This is the first report of a direct damaging effect of N. minor to strawberry.
Reaction of Commercial Cultivars of Kiwifruit to Infection by Root-knot Nematode and Its Biocontrol Using Endophytic Bacteria
Authors: Banihashemian Seyedeh Najmeh , Jamali Salar , Golmohammadi Morteza , Noorizadeh Sina , Atighi Mohammad Reza 
Published: June 2023

Abstract
Root-knot nematodes (RKN) cause considerable economic losses to kiwifruit production annually. Screening of resistant cultivars has been one of the long-standing methods to manage root-knot nematodes. Here, the reaction of the four most common commercial cultivars of kiwifruit, namely, Actinidia chinensis var. deliciosa cv. Hayward, A. chinensis var. deliciosa cv. Abbott, A. chinensis var. deliciosa cv. Bruno, and A. chinensis var. chinensis cv. Haegeum (commonly known as ‘Golden’ kiwifruit) to infection by the RKN, Meloidogyne incognita, was evaluated. Among examined cultivars ‘Golden’ was the most susceptible, having on average 52.8 galls, 56.1 egg masses per gram of root, and 642 J2 population per 200 gram of soil. ‘Bruno’ showed the highest resistance, with 3.3 galls, 4.1 egg masses per gram of root, and 79 J2 in 200 g of soil. Then, two potential biological control agents, namely Priestia megaterium 31.en and Agrobacterium tumefaciens 19.en were used on ‘Hayward’ seedlings against M. incognita and showed a significant reduction in the number of galls and egg masses on roots, juvenile population in the soil, and increased the growth parameters of the plants compared to non-treated seedlings. We demonstrated that integrated management using resistant cultivars and biological control can provide a safe and economic method to control RKN, and these resistant cultivars can be used in breeding programs.
Audience metrics as disruptive innovation: Analysing emotional work of Finnish journalism professionals
Authors: Ahva Laura , Ovaska Liisa 
Published: June 2023

Abstract
Audience metrics in journalism can be seen as a disruptive innovation: a technological invention that boosts journalism but at the same time disturbs it. The use of metrics has therefore drawn journalists into a sensitive sense-making process: They do emotional work to be able to manage the metrics-related requirements of their work. To further assess why metrics in Finland remains a sensitive issue, in this article we ask: 1) What is the Finnish news professionals’ emotional work about metrics directed at? 2) What is the relationship between this emotional work and the cycle of disruption and innovation? The empirical material consists of nine qualitative interviews with Finnish news managers and a set of open-ended survey responses from the editorial staff of the largest Finnish daily, Helsingin Sanomat. In addition, eight background interviews with third-party analytics providers were used as supportive material. We conclude that the emotional work is centred on relief, excitement, and stress, and it is directed at seeing the audience as an algorithmic conception, increasing the organisations’ capabilities through learning, and maintaining autonomy, respectively. Emotional work thus alleviates and stimulates, as well as balances journalism's relationship with the disruptive innovation of metrics.
Optimal Maneuvers Around Binary Asteroids Using Particle Swarm Optimization and Machine Learning
Authors: D’Ambrosio Andrea , Carbone Andrea , Curti Fabio 
Published: June 2023

Designing optimal transfer trajectories and reference orbit tracking in binary asteroid systems is both challenging and computationally expensive. This paper proposes a method of bypassing the high computational overhead by leveraging a collection of known techniques. Indeed, the proposed framework is based on the combination of artificial intelligence techniques, such as the particle swarm optimization and neural networks, along with the inverse dynamics and the B-splines approximation of the trajectory. The real irregular shapes of the asteroids are considered in the free dynamics of the system, which are obtained via the mutual polyhedral model. The gravitational accelerations of the single asteroids acting on the spacecraft are approximated by using two single-layer neural networks trained via an extreme learning machine. By using a combination of these techniques, the computational time of the whole optimization is decreased from hours to minutes. The proposed approach is applied to the optimal trajectory design around the binary asteroid system, 1999 KW4, showing the feasibility of the proposed optimization approach, reducing the computational effort and time, and increasing the reliability of the obtained results. It is shown through a Monte Carlo analysis that our optimization strategy yields more accurate solutions than other optimization algorithms, such as the interior point and sequential quadratic programming methods, when a random initial guess is provided. Finally, the proposed optimization approach can be used in combination with other techniques to provide a feasible and reliable initial guess for a better solution refinement.t