bluuebunny/crossref_metadata_2025 huggingface dataset:
Theoretical Interpretation of Revolutions, Evolution of Concepts and Diversity of Questions: Discussion on the perspectives of Marx, Tocqueville, Weber, Theda Skocpol and Ellen Kay Trimberger
Authors: Idrees Ihsan B F , Saud Muhammad , Ashfaq Asia
Published: December 2022

Is the era of revolution is over? Thus only a long historical and theoretical concepts optic can shed light on the discussion of revolutions. This paper seeks to simplify some of the theoretical concepts of revolutions, the major approaches are the classical phase, Karl Marx, Tocqueville, and Max Weber, while challenges of modernization theorists are Huntington and Tilly. This paper formulize the evolution in these concepts from one era to another. In addition, it explained the reasons for the revolutions, as well as explaining the role of the actors, and trying to clarify the reasons that led to the diversity of theories such as structural Analysis by Theda Skocpol and Ellen Kay Trimberger. Furthermore, it is notable that the development of concepts of theoretical analysis depends on the key aspects, and on the focus in analyzing the role of different actors, as well as on linking the different roles of these actors and the reasons for the revolution. Of course, there are still many theories that attempt to explain the revolution and make it a social phenomenon linked to scientific and objective reasons.
Literature as a Vehicle of Peaceful Counter-discourse: An Analysis of Native American Writings
Authors: Akhtar Amer , Almas Neelum
Published: December 2022

This article seeks to analyze key Native American literary works with a view to discussing the thematic concerns of this generally ignored tradition of literature. Using Alan McKee’s model of textual analysis, we discuss that Native American literature serves as a peaceful means of producing and disseminating counter-discourse. The conquest—genocide for some—of the Native Americans is presented in all its horrific details but in a manner that engages and educates the reader. The writers that the study chose through purposive sampling, Alexie, Momaday, Silko, and Robe, discuss not just the history of the abuse but also what it has led to and the forms it occurs in, in the present day. The article is significant in that it discusses literature and a people systematically ignored by the mainstream and also in that it asserts that literature needs to be discussed as a player in the field of peace and communication.
How Social Media is Shaping Conflicts: Evidences from
Contemporary Research
Authors: Rehman Shams-ur- , Riaz Dr. Saqib
Published: December 2022

The growing use of social media in contemporaneous conflicts and its penetration into modern warfare is a thing to be pondered. Social media has redefined social movements, collective actions, and empowered marginalized groups to have a say in international affairs. While there has been a large body of literature examining how the traditional media depicts conflicts and violent events, the role of social media in shaping conflicts has been overlooked. Consulting an extensive literature related to social media and contemporary conflicts, this study explored the pivotal role of social media in the escalation of recent civil uprisings and the consequences of digital activism on changing conflict dynamics. This study also analyzed the usage of social media by militant organizations and insurgent groups for their vested interests and validated the insurgent public sphere role of social media in shaping conflicts.
Portrayal of Muslim and Western Women In Hollywood Movies
Authors: Fareed Fazal , Noureen Dr. Abida , Jabeen Dr. Shehla
Published: December 2022

Hollywood is the largest and oldest media industry in the World. This study points out the role and depiction of Muslim as well Western women in same movies. A qualitative textual analysis of movies examined specific characteristics themes and scenes which were being displayed by Muslim/Western Women characters under the theory of Orientalism These characteristics included, traditional/native attire, acts of hostility and aggression, affiliation with terrorism, depicted as victimizers or victims.
Portrayal of Kashmir Issue in the Editorial Cartoons of English Dailies: A comparative study of Indian and Pakistani newspapers
Authors: Khan Maham Zahid , Qaddos Dr. Maira , Suleman Muhammad
Published: December 2022

Kashmir issue has been the bone of contention between India and Pakistan since their independence. However, abrogation of article 370 on Aug 05, 2019, in Indian Occupied Kashmir by the Indian government to revoke its’ special status has escalated the conflict to an extreme level. This paper is an attempt to examine the portrayal of the Kashmir issue in the editorial cartoons of English dailies of India and Pakistan published in August 2019 (just after the abrogation of article 370) in the light of Framing theory and Barthes’s model of connotation and denotation. The main objective of this research is to examine the signs, symbols, and metaphors used by Pakistani and Indian cartoonists to highlight the Kashmir issue. The study concludes both Pakistani and Indian newspapers frame the Kashmir issue in their way representing their perception, newspaper's policy, and ideology. Cartoons published in Indian newspapers depict Pakistan as a confused and baffled state whereas Pakistani newspapers highlight the barbarianism of the Indian army in Indian Occupied Kashmir.
Challenges in Adoption of Digital Health Education among Educated Youth in Pakistan
Authors: Adil Dr. Adnan , Rahat Dr. Rahla , Bugvi Ayesha Siddiqa
Published: December 2022

This study attempts to examine the challenges in the adoption of digital health technology among educated youth in Pakistan. Using qualitative research methods, opinions of male and female students of public and private sector universities in Islamabad were gathered through eight Focus Group Discussions (FGDs). The study themes included: Complexity of language and medical terminology on the internet, lack of Information and Communication Technology (ICT) skills, less reliability of different websites, and threat to privacy. The study found that several factors such as poor facilitations conditions, institutional negligence, problematic medical jargon, online frauds, and privacy insensitivity are hampering the access to eHealth services among students of universities in Islamabad. As the global health systems are moving towards eHealth services, the lack of technological knowledge of the patients may harm their access to health services. Thus, there is a need to minimize the barriers to digital health education at the institutional level.
Framing Victims: A Comparative Framing Analysis of Yemen and Syrian Conflict Victims in Pakistani Media
Authors: Arafat Yasar , Ameen Rooh Ul Ameen , Iqbal Zafar
Published: December 2022

The current research scrutinizes how political proximity plays a vital role in the portrayal of conflict victims, happening in Yemen and Syria. Through the content analysis research demonstrate the victims of the Yemen conflict are more tinted than the victims of the Syrian conflict. In both the conflict, all the actors are having equivalent religious bonds with the reporting media of Pakistan. This study demonstrates the political proximity between the media of reporting country and actors of the conflict, direct strong effect on the framing of the conflict victims. The result demonstrates that Saudis is having a strong political relationship with Pakistan therefore in the Yemen conflict Yemen government (backed by Saudi Arabia) is demonstrated as more positive and Houthis rebels as negative. On the other side, Syria does not have a strong relationship with Pakistan so the Syrian war is demonstrated as the confusing war between different groups where no one is positively portrayed. The result demonstrates closer the political proximity between reporting country and conflict actor, the greater the chance that the actor will have highly empathized and opposite side framing will be highly brutalized.
Peer feedback in Undergraduate Classrooms: Students’ Perceptions
Authors: Shahzadi Uzma
Published: December 2022

One of the key elements to success in teaching and learning is feedback. Peer feedback is as important as teacher-student feedback. The main objective of this quantitative study was to find out the perception of students about peer feedback. The population of this study was undergraduate students from the faculty of sciences and the faculty of social sciences. A convenient sampling technique was used to select a sample size of 150. An extensive literature review supports the researcher of this study to develop an instrument comprising 15 items on a five-point Likert scale. Cronbach Alpha value of the questionnaire was .87. Descriptive and inferential statistics were used to analyze the data. The study found that the majority of the students engage in providing feedback to their peers during assigned tasks in social science classrooms while in science classrooms students perceive that they do not have time for providing feedback to their peers during classes and laboratory engagement... The study recommends that there may be a discussion of the importance of peer feedback in undergraduate classrooms.
Effects of TV Programs on Children: A Case Study of Bahawalpur
Authors: Khan Huma , Ghafar Majid-Ul- , Ullah Farid
Published: December 2022

Present research study is based on survey to explore and investigate the positive effects of TV programs on children. The main objectives were to explore TV program watching habits and its progressive change in the behavior of children. The sample size of the study was 500 respondents’ parent, Teachers and children. The data was collected parents and their children by using standardized questionnaire. Social construction theory of media is the most relevant theory which support this study. The empirical analysis of the data reveals that TV programs have positive effects both social and cognitive on children behavior. The analysis of the data also reveals that children learn different social skills after watching children TV programs and they also enable themselves to solve the issues faced in daily routine life.
Part of the Policing System in Criminal Justice System; Pieces of evidence from Punjab, Pakistan
Authors: Nazir Sadaqat Ali , Mahmood Sadaf , Batool Zahira , Shabbir Muhammad
Published: December 2022

Understanding criminal justice procedure in depth is imperative for developing a peaceful and nonviolent society. The police department is a crucial component of any country’s criminal justice system. The aim of current research was to examine Pakistan's criminal justice system, with a special focus on the Punjab police department as this department is the core part of this CJS (Criminal Justice System) hierarchy. In this study, the researcher employed the quantitative research design, and 104 out of 210 convicted prisoners were interviewed from the Faisalabad District Jail with the help of a well-structured questionnaire. It can be concluded that the policing system of Pakistan has developed through time and is continuing to do so in the modern world, including Pakistan; yet, the intricate workings of the system can be simplified enough for the average person to comprehend them, taking into account the changing interests and challenges of different time and spaces.
Structurally Accepted Crime: Domestic Violence in Pakistan
Authors: Ali Rafia Naz
Published: December 2022

Domestic violence is a major social issue because of its various severe physical, psychological, emotional, and social implications. When a culture rationalises such anti-human practises and gives them a structural form, they become part of the structural framework. Domestic violence is considered a private matter, though it is the most common crime in Pakistan. No one paid heed to such violence unless disfigurement or death took place. Two provinces of Pakistan ratified a law on domestic violence, but there is no national legislation on the issue. Such violence comes under the ambit of the Criminal law, which prescribes a death sentence in the case of femicide and various terms of imprisonment depending on the nature of the wound. Domestic violence is a significant issue in Pakistan. To know the legal reality of a system, analysis of court decisions must be complemented by the research and work of other legal bodies. The study will help to improve the existing laws and lead to the introduction of new laws, social and political policies to solve the problem of domestic violence.
Investigating Pakistani Efl Teachers’ Attitude towards Face-To Face, Online and Blended Modes of Teaching: A Qualitative Study
Authors: Younas Muhammad , Pervaiz Beenish , Janjua Muhammad Irfan , Shahid Arooj
Published: December 2022

This study intends to investigate Pakistani EFL teachers’ attitudes towards face to face, online and blended modes of teaching. The study is qualitative in nature. The data has been collected through semi-structured interview from 20 teachers who were willing to participate in this study and were also having the experience of teaching in face to face, online and blended modes of teaching. The qualitative data collected through semi-structured interview has been analyzed through thematic analysis approach. The emerging themes, the problems being faced by the teachers in face to face teaching mode, were over-crowded classes, prescriptive syllabus, de-motivated students, non-conducive classroom environment and less cooperative management. In online teaching mode, the teachers faced problems such as average or poor computer knowledge, no proper tools for online classes, no positive impact on learning of students, less comfort level while taking online classes, no proper training, and less support and resources from management. The teachers also opine that they have problems in blended mode of teaching as well that are time consuming issue, learning isolation, learners’ frustration, anxiety and confusion, and higher class drop out ratio.
Accounting Standards as a Moderating Stimulus on the Nexus between the Corporate Governance and Accounting Conservatism: Insights from the Emerging Market Economy
Authors: Khan Yousaf , Afridi Fakhr e Alam , Ayaz Bushra , Jamal Surayya
Published: December 2022

This study aims to investigate the moderating influence of accounting standards on the relationship between corporate governance and accounting conservatism in the financial statements of firms in the Islamic Republic of Pakistan. A sample of the seventy most active nonfinancial firms for the period 2009-2021 is used for hypothesis testing. The corporate governance mechanisms used in this study cover ownership structure, and board characteristics. Data of relevant variables have been obtained from the open door for all, PSX, and sites of SBP. Panel data methodology has been employed to ensure the influence of corporate governance on conservatism in presence of accounting standards used as a moderator. The findings of the first model (direct effect) in this study indicate that managerial ownership, Institutional ownership, board attendance, board independence, and board diversity have a significant positive association whereas, foreign ownership has a negative significant relationship with conservatism. The findings of the second model (moderating effect) show that accounting standards positively moderate the nexus of corporate governance and conservatism. The study's findings are significant for a think tank that develops policies for the corporate sector in Pakistan to focus on governance, conservative accounting principles, and accounting standards for discouraging agency problems and information asymmetry.
Portrayal of Transgender on Facebook and Audience Behavior: A Case Study of Julie Khan
Authors: Waheed Saima , Mussarat Beenish , Inam Ul Haq
Published: December 2022

This study examines the portrayal of transgender on Facebook by The centrum Media (TCM) Originals that had made a series namely Naked Truth in which they had featured Julie Khan (Transgender). Various national and international studies have been reviewed in this research. Agenda setting theory has been applied in this study. Content analysis has been selected with a systematic random sampling technique. Two units are segmented in this study for analysis. One was the dialogues of Julie Khan, and the second one was Audience comments on the videos of Julie khan, which TCM uploaded on the platform of Facebook. Season 01 has been selected as the population of the study. In these videos, Julie Khan highlighted different kind of issues in Pakistan. The conclusion was in favor of Julie Khan. People highly encouraged the videos and issues discussed by Julie Khan in the series Naked Truth.
PENGEMBANGAN MEDIA VISUAL SCRAPBOOK PADA TEMA PERISTIWA DALAM KEHIDUPAN DI KELAS V SDN SUKASABA 1 PANDEGLANG
Authors: Dewi Dewi Lestari , Yuliana Rina , Taufik M.
Published: December 2022

The development of this learning media is a process of activities carried out to produce a learning media based on existing theories and product validation that researchers have made so that they are suitable for use in learning activities. This study aims to determine: the results of the design of visual scrapbook media development on the theme of 7 events in life. The purpose of this thesis is for researchers to determine learning outcomes using learning media using Scrapbook Media. Methods This research uses the Risech and delepoment (R&D) research method. The subjects in this study were the fifth grade students of SDN Sukasaba 1 Pandeglang Regency for the academic year 2021/2022, totaling 16 students, with 10 female students and 10 male students. The data collection instrument in this study used observation sheets and interviews. From the results of the Scrapbook visual media research on the material of events in life, there is an increase in learning in the classroom. And the results of the validation of media experts obtained 85% categorized as very feasible, the results of material expert validation obtained 85% categorized as very feasible, the results of linguistic expert validation 84% were categorized as very feasible and the results of the student responses obtained 81.5% categorized as very good. From the results of these studies, it is shown that learning on the material of events in life using visual media Scrapbook is able to increase the readiness and focus of students in understanding learning faster.  Therefore, in learning events in life, it is recommended for teachers to use the Scrapbook media because it can improve learning outcomes and make students understand learning faster.
Rusya Federasyonu’nun Güvenlik Strateji Belgeleri Bağlamında Kırım İlhakı’nın Tarihsel-Sembolik ve Askeri-Jeopolitik Analizi
Authors: JANE Murat
Published: December 2022

Güvenlik strateji belgeleri bir devletin tehdit algıları, çıkarları ve olası dış politika hamleleri hakkındaki temel kaynaklardır. Söz konusu güvenlik strateji belgeleri arasında ulusal güvenlik konsepti, dış politika konsepti ve askeri doktrinler yer almaktadır. Bu belgeler ışığında bir devletin bölgesel ve küresel gelişmelere nasıl bir dış politik reaksiyon verebileceği net olarak öngörülebilmektedir. Bu bağlamda Rusya Federasyonu (RF)’nun post-Sovyet coğrafyaya yönelik politikalarının ve Avro-Atlantik Blok (NATO ve Avrupa Birliği-AB) ile ilişkilerinin anahatlarını söz konusu belgelerde görebilmek mümkündür. Ukrayna da RF-Avro-Atlantik Blok arasındaki ilişkileri belirleyen faktörler arasında yer almıştır. Bu çerçevede RF-Ukrayna ilişkileri genellikle Avro-Atlantik Blok’un doğu genişlemesi bağlamında değerlendirilmektedir. Fakat doğu genişlemesinin yanı sıra iki devlet arasındaki tarihsel-sembolik ve askeri-jeopolitik ilişkiler de dikkate alınmalıdır. Başka bir ifadeyle Kırım’ın ilhakı sadece güncel jeopolitik gerçekliklere indirgenmemeli, Ukrayna’nın ve Kırım’ın Rus tarih yazımındaki yeri de göz önünde bulundurulmalıdır. Zira RF’nin Ukrayna algısı işgal sürecinde belirleyici olmuştur. Bu çerçevede çalışmada Kırım’ın ilhakı, RF’nin güvenlik strateji belgeleri bağlamında, jeopolitik ve tarihsel gelişmeler ışığında analiz edilecektir. Hiç şüphesiz bu analiz bizce Şubat 2022 de başlayan RF-Ukrayna Savaşı’nın irdelenmesinde de yol gösterici olacaktır.
PENGALAMAN KUALITAS HIDUP PENDERITA ARTRITIS REUMATOID DI KELURAHAN SELESAI KECAMATAN SELESAI KABUPATEN LANGKAT
Authors: Ermanto Diky , Daniel Hasibuan Muhammad Taufik
Published: December 2022

Rheumatoid arthritis is an autoimune disease, progressive and chronic inflammatory disease that affects many tissues and organs, but principally affects synovial joints. The purpose of this study was to find out the experience of the quality of life of rheumatoid arthritis sufferers in Lingkungan VIII Pasar II Paya Jambu,  Kelurahan Selesai, Kecamatan Selesai, Kabupaten Langkat from May to August 2021. This type of research uses a qualitative phenomenological design. The sample selected by purposive sampling technique as many as 10 people. The data analysis technique used in this study is the Giorgi method with five stages. The results of this study found five themes concerning the quality of life of rheumatoid arthritis patients, namely: 1) characteristics of rheumatoid arthritis patients, 2) the activity of rheumatoid arthritis patients, 3) increased spiritual response, 4) psychological response of rheumatoid arthritis patients, and 5) management of rheumatoid arthritis patients. It is hoped that the community and especially rheumatoid arthritis patients can find out information clearly so they can have good knowledge of the meaning, causes, signs and symptoms, and all information related to rheumatoid arthritis in order to have a good quality of life.

 

Abstrak

Artritis reumatoid merupakan penyakit autoimun, progresif serta dikatakan kronik yang pengaruhi banyak jaringan serta organ, tetapi pada prinsipnya mengganggu sendi sinovial. Tujuan penelitian ini untuk mengetahui pengalaman kualitas hidup penderita artritis reumatoid di Lingkungan VIII Pasar II Paya Jambu Kelurahan Selesai Kecamatan Selesai, Kabupaten Langkat pada Mei sampai dengan Agustus 2021. Jenis penelitian ini menggunakan kualitatif dengan desain fenomenologi. Adapun sampel yang dipilih dengan teknik purposive sampling sebanyak 10 orang. Teknik analisa data yang di gunakan dalam penelitian ini yaitu metode Giorgi dengan lima tahap. Hasil penelitian ini mendapatkan lima tema tentang kualitas hidup penderita artritis reumatoid yaitu: 1) karakteristik penderita artritis reumatoid, 2) aktivitas penderita artritis reumatoid, 3) respon spiritual meningkat, 4) respon psikologis penderita artritis reumatoid, dan 5) penatalaksanaan penderita artritis reumatoid. Diharapkan masyarakat dan kususnya penderita artritis reumatoid dapat mengetahui informasi dengan jelas agar dapat memiliki pengetahuan baik pengertian, penyebab, tanda gejala, dan seluruh informasi terkait artritis reumatoid agar memiliki kualitas hidup yang baik.
PENGARUH KONSUMSI FUNCTIONAL FOOD TEPUNG GANYONG TERHADAP PENURUNAN KADAR KOLESTEROL
Authors: Zuhra Meutia , Rahayu Inong Sri , Rahmi Aulia
Published: December 2022

Canna tubers (Canna edulis Kerr.) can be used as functional food for non-pharmacological treatment of hypercholesterolemia because canna tubers contain soluble fiber and antioxidant activity. This study aims to determine the effect of routine administration of functional food canna flour on changes in cholesterol levels in rats with hyperuricemia. This study used a one-way completely randomized design. Treatment with suspension of canna flour and sampling was carried out on days 1, 3, 7, 14, and 21. The determination of cholesterol levels in the blood of rats used the enzymatic method. Data on average cholesterol levels between treatment groups were statistically analyzed using the Kruskall-Wallis test (non-parametric) and followed by the Mann-Whitney test (p<0.05). The results showed that canna flour can change blood cholesterol levels of rats suffering from gout by inducing potassium oxonate. The dose of canna flour that can reduce blood cholesterol levels is 0.75 g/KgBW and 1.5 g/KgBW, this is indicated by a significant decrease in the total AUC value in the group compared to the negative control. Overall, it can be concluded that the cholesterol-lowering activity of canna depends on the dose given, only in a certain dose range.

 

Abstrak

Umbi ganyong (Canna edulis Kerr) dapat menjadi functional food pada pengobatan hiperkolesterol secara non farmakologi karena umbi ganyong memiliki kandungan serat larut dan aktivitas antioksidan. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian secara rutin functional food tepung ganyong terhadap perubahan kadar kolesterol pada tikus yang mengalami hiperurisemia. Penelitian ini menggunakan rancangan acak lengkap pola satu arah. Perlakuan pemberian suspensi tepung ganyong dan sampling tersebut dilakukan pada hari ke 1, 3, 7, 14, dan 21. Penetapan kadar kolesterol dalam darah tikus menggunakan metode enzimatik. Data kadar kolesterol rata-rata antara kelompok perlakuan dianalisis secara statistik menggunakan uji Kruskall-Wallis (non parametrik) dan dilanjutkan dengan uji Mann-Whitney (p<0.05). Hasil penelitian menunjukkan bahwa tepung ganyong dapat mengubah kadar kolesterol darah tikus yang menderita gout dengan induksi kalium oksonat. Dosis tepung ganyong yang dapat menurunkan kadar kolesterol darah yaitu 0,75 g/KgBB dan 1,5 g/KgBB, hal ini ditunjukkan dengan menurunnya nilai AUC total secara signifikan pada kelompok tersebut dibandingkan dengan kontrol negatif. Secara keseluruhan dapat disimpulkan bahwa aktivitas penurunan kolesterol dari ganyong tergantung pada dosis pemberian, hanya pada kisaran dosis tertentu.
PENGEMBANGAN LEMBAR KERJA SISWA BERBASIS POE (PREDICT, OBSERVE, EXPLAIN) TERHADAP KEMAMPUAN PEMAHAMAN KONSEP MATEMATIS SISWA SMP
Authors: Faridi Ruliah Ami , Nurcahyono Novi Andri , Imswatama Aritsya
Published: December 2022

Abstrak: Penelitian ini bertujuan untuk mengembangkan Lembar Kerja Siswa berbasis POE (Predict, Observe, Explain) untuk meningkatkan pemahaman konsep matematis siswa SMP dengan kategori valid, praktis dan efektif. Jenis penelitian ini adalah pengembangan dengan model pengembangan ADDIE (Analysis, Design, Development, Implementation, Evaluation). Penelitan dilakukan kepada 30 siswa kelas VII MTs. Darussa’adah. Instrumen yang digunakan pada penelitian ini adalah lembar validasi oleh ahli materi dan evaluasi pembelarajan untuk mengetahui validitas LKS berbasis POE, angket respon siswa untuk mengetahui kepraktisan LKS berbasis POE serta lembar pretest dan posttest untuk mengetahui keefektifan LKS berbasis POE. Hasil penelitian diperoleh (1) Validasi oleh ahli materi dan evaluasi pembelajaran menyatakan LKS berbasis POE termasuk dalam kategori Sangat Valid dan layak diuji coba. (2) Berdasarkan hasil analisis N-Gain mendapatkan persentase 71,327 % dan analisis ketuntasan belajar klasikal sebesar 80 % menunjukan adanya peningkatan pemahaman konsep matematis siswa. (3) Berdasarkan angket respon siswa dihasilkan respon bahwa LKS berbasis POE masuk dalam kategori Praktis
Model Pembelajaran Tatalepa Blended Learning Di Masa Pandemi Covid-19 Untuk Meningkatkan Keaktifan Dan Hasil Belajar Siswa
Authors: Hidayat Asep
Published: December 2022

Research, entitled " Application of the Tatalepa Blended Learning Model During the Covid-19 Pandemic to Improve Student Activity and Learning Outcomes in ICT Subjects for Class VII Students of SMPN 1 Bojonggenteng " aims to determine the application of the tetalepa blended learning model in SMPN 1 Bojonggenteng and to improve student learning outcomes by implementing this model. This research is a classroom action research, the subject of this research is class VII  as many as 30 students. Student learning outcomes are measured using various instruments. Assessment of student knowledge is carried out using multiple choice test questions, assessment of student skills is measured using portfolio assessment, while assessment of attitudes is measured using observation sheets, self-assessment, and peer assessments. The results showed that student learning outcomes had increased, namely in the initial / pre-cycle activities the average student learning outcomes were 71 with a 50% percentage of completeness increased in cycle 1 with an average learning outcomes of 74 but the percentage of completeness was still at 50%. Then in cycle 2 the average student learning outcomes increased to 80 with a percentage of 90% completeness and student activity increased from 41% in cycle 1 to 83% in cycle 2.In conclusion, students can meet the Minimum Completeness Criteria (KKM) of 75 using the model blended learning
Improvement of ship stations for the preparation of drinking water using the synergistic effect of activated oxidation technologies
Authors: Мизгирев Д.С. , Гурьянов Н.М.
Published: December 2022

В статье рассмотрены особенности применения активированных окислительных технологий в судовых станциях приготовления питьевой воды. Рассмотрены процессы обеззараживания питьевой воды с использованием кавитации, УФ-излучения, озонирования. Показано, что применение перечисленных высокоэффективных процессов может значительно уменьшить потребность в реагентах, улучшить массогабаритные показатели, энергопотребление судовых станций приготовления питьевой воды. Предложено применение агрегата комплексного обеззараживания озонированием и УФ-излучением, совмещающего функции озонатора и устройства УФ-обеззараживания. Использование данного устройства сможет повысить надежность, ремонтопригодность, снизит массу, габариты, потребление электроэнергии станцией приготовления питьевой воды в целом. Обозначены достоинства и недоставки указанных способов обеззараживания питьевой воды. Обоснована функциональная схема станций приготовления питьевой воды с использованием синергетического эффекта активированных окислительных технологий.

The article discusses the features of the use of activated oxidation technologies in ship stations for the preparation of drinking water. The processes of disinfection of drinking water using cavitation, UV-radiation, ozonation are considered. It is shown that the use of the listed highly efficient processes can significantly reduce the need for reagents, improve the weight and size indicators, and the energy consumption of ship drinking water preparation stations. The use of a unit for complex disinfection by ozonation and UV-radiation, which combines the functions of an ozonator and a UV-disinfection device, is proposed. The use of this device can increase reliability, maintainability, reduce weight, dimensions, and electricity consumption by the drinking water preparation station as a whole. The advantages and disadvantages of these methods of disinfection of drinking water are indicated. A functional diagram of drinking water preparation stations using the synergistic effect of activated oxidation technologies is substantiated. Keywords: drinking water disinfection, cavitation, UV-radiation, ozonation, ship water supply, activated oxidation technologies, drinking water preparation station, drinking water preparation technology.
Dynamics of a river displacement vessel in the course stability neighborhood
Authors: Чернышов А.В.
Published: December 2022

В статье рассмотрена динамика речных водоизмещающих судов на границе области устойчивости. Приведен оригинальный графический способ определения значения параметра (глубины фарватера), при котором объект управления теряет устойчивость. Проведен анализ характера устойчивости особой точки, в результате которого был сделан вывод о собственной устойчивости судна на границе области устойчивости. Показана трансформация фазовых портретов системы при движении судна на разных глубинах. Полученные результаты качественно дополняют и, частично, вносят коррективы в существующие представления о динамике речных судов при движении по мелководью. Результаты исследования будут полезны при проектировании судов, а также при разработке алгоритмов управления при движении по опасным участкам рек, что, в итоге, способствуют снижению аварийности на водном транспорте.

The paper considers the dynamics of river displacement vessels at the boundary of the course stability area. An innovative graphical method for determining the value of the parameter (navigational depth), at which the control object loses course stability, is presented. Analysis of the character of stability of a equilibrium point is conducted, as a result of which a conclusion about inherent stability of a vessel on the border of the stability area is made. Transformation of phase portraits of system at vessel movement on different navigational depths is shown. Received results are qualitatively supplementing and, partially, correcting basic ideas about dynamic of river ships moving through shallow water. Results of research will be useful at designing of ships, and also at development of control algorithms during shallow water navigation. Also, the results shown in the article make a positive contribution to the decreasing of navigational accidents.
Software and hardware complex for solving problems of autonomous navigation
Authors: Бурылин Я.В. , Гринек А.В. , Бойчук И.П. , Боран-Кешишьян А.Л. , Кондратьев С.И.
Published: December 2022

В статье представлен опыт решения комплекса задач, связанных с проектированием и изготовлением малого автономного судна на базе научно-исследовательского центра безэкипажного судовождения Государственного морского университета им. адм. Ф.Ф. Ушакова. Рассмотрены существующие разработки и пути развития малого автономного вспомогательного флота в области e-навигации, инновационного судостроения и цифрового образования. В изготовленном экспериментальном автономном судне отработаны алгоритмы движения, реализованные в автоматизированной системе управления. Успешно апробирован оригинальный способ управления с помощью авторулевого. В качестве средств берегового мобильного модуля управления и мониторинга разработан комплекс программно-аппаратных решений для построенного прототипа судна, реализующий оригинальные алгоритмы определения и корректировки курса. Получены решения задач в области автономной навигации, судостроения. Результаты показывают хорошие ресурсы и возможности данного судна для дальнейшего использования в прибрежных обследованиях, картографических исследованиях, технологиях навигации, проводки и алгоритмов расхождения подобных судов.

The article presents the experience of solving a set of problems of designing and manufacturing a small autonomous vessel at the scientific research center of skip navigation of the Admiral Ushakov Maritime State University. The work presents existing developments and ways to develop a small autonomous auxiliary fleet in the field of e-navigation, innovative shipbuilding and digital education. In an experimental autonomous vessel, motion algorithms implemented in an automated control system have been worked out. Successfully tested the original method of control with the help of autopilot. As a means of the onshore mobile control and monitoring module, a set of software and hardware solutions for the built prototype of the ship was developed, implementing original algorithms for determining and adjusting the course. Solutions to problems in the field of autonomous navigation and shipbuilding have been obtained. The results show the good resources and capabilities of this vessel for further use in coastal surveys, mapping studies, navigation technologies, and wiring and divergence algorithms of such vessels.
Investigation of the compressive strength of ship hull elements obtained by 3D printing
Authors: Полухин П.Д. , Рубан А.Р. , Кушнер Г.А. , Волков Д.А.
Published: December 2022

В работе приводятся результаты исследования прочности на сжатие элементов корпуса судна, полученных методом 3D-печати. Для определения прочности на сжатие были изготовлены цилиндрические образцы из двух видов пластиков, ABS и PETG, с различной степенью заполнения. Для проведения испытаний использовалась стандартная методика для измерения прочности на сжатие образцов из полимерного пластика. Установлено, что для образцов при увеличении заполнения с 20% до 100% из ABS пластика удельная прочность увеличилась на 366% а из PETG пластика удельная прочность увеличилась на 79 %. Таким образом, для печати с малым заполнением целесообразнее использовать ABS пластик. Сжатие образцов сопровождалось изменением их формы – появлялась бочкообразность. При этом было отмечено, что на определенном этапе появлялись трещины. При помощи металлографического микроскопа с системой визуализации установлено, что в 90% случаев деформация более 10% сопровождается образованием трещин в зоне спекания слоев. При этом, коэффициент заполнения образцов не является определяющим.

The paper presents the results of a study of the compressive strength of the elements of the ship's hull, obtained by the method of 3D printing. To determine the compressive strength, cylindrical specimens were made from two types of plastics, ABS and PETG, with different degrees of filling. The tests were carried out using a standard procedure for measuring the compressive strength of polymer plastic specimens. It was found that for specimens with an increase in filling from 20% to 100% from ABS plastic, the specific strength increased by 366%, and from PETG plastic, the specific strength increased by 79%. Thus, it is more expedient to use ABS plastic for printing with low infill. The compression of the samples was accompanied by a change in their shape - a barrel-shaped appearance appeared. At the same time, it was noted that cracks appeared at a certain stage. Using a metallographic microscope with a visualization system, it was found that in 90% of cases, deformation of more than 10% is accompanied by the formation of cracks in the sintering zone of the layers. In this case, the filling factor of the samples is not decisive in this case.
Experimental study of the hydrodynamics features of a shipboard sorbent spraying device
Authors: Городников О.А. , Аввакумов А.Е. , Шутов В.В.
Published: December 2022

В статье представлены результаты экспериментов по определению возможности движения подводного аппарата, разработанного для ликвидации аварийных разливов нефти и нефтепродуктов. Данный аппарат является элементом судовой энергетической установки, которая может быть использована на судах, в независимости от их назначения и размеров. Данная установка была спроектирована с целью уменьшения времени локализации и ликвидации разливов и утечек нефти и нефтепродуктов, как при возможности работать в стандартных условиях, так и для работы в битом и сплошном льду. После создания модели и проведения математических расчетов с приложением нагрузок, были выведены несколько наиболее эффективных траекторий движения и распыления сорбентов. Потребовалось проведение экспериментов для наиболее точных результатов перед установкой и проведением испытаний на судне. Ряд экспериментов и полученные результаты, изложенные в статье, позволили определить наиболее эффективную траекторию и нагрузки при использовании данной системы.

The article presents the results of experiments on determining the motion capability of an underwater vehicle designed for oil and petroleum product spill elimination. This apparatus is an element of a ship power plant, which can be used on ships, regardless of their purpose and size. This unit was designed to reduce the time of localization and elimination of spills and leaks of oil and petroleum products, either possible to work in standard conditions or work in the cracked and solid ice. After creating the model and carrying out mathematical calculations with application of loads, several most effective trajectories of movement and spraying sorbent were deduced. Experiments for the most accurate results were required before installation and testing on the ship. A number of experiments and the results obtained, outlined in the article, made it possible to determine the most effective trajectory and loads when using this system.
Evaluation of the efficiency of the heat exchange equipment of a marine diesel engine
Authors: Панасенко А.А. , Петрашёв С.В.
Published: December 2022

Для эффективности работы главного судового дизеля необходимо обеспечивать эффективную передачу теплоты масла, воздуха и охлаждающей пресной воды. Для этого используют теплообменники соответствующих сред, соединенные последовательно. В сложившейся практике, теплообменники по ходу охлаждающей забортной воды соединяются последовательно в строго определенном порядке – холодильник воздуха, затем холодильник масла и последний холодильник пресной охлаждающей воды. В статье проведён анализ эффективности стандартного соединения теплообменников и предложен альтернативный вариант соединения теплообменников по критерию увеличения среднединамической температуры среды по мере увеличения охлаждающей забортной воды. Для сравнения стандартного и альтернативного вариантов соединения теплообменников по ходу забортной воды рассчитаны суммарные потери эксергии каждого из вариантов в статическом режиме работы. Также представлены результаты расчёта дополнительных тепловых потерь вследствие резкого увеличения нагрузки главного двигателя на 20% от номинальной. На основании этих расчетов сделан сравнительный анализ стандартного и альтернативного вариантов соединения теплообменников.

For the efficiency of the operation of the main marine diesel engine, it is necessary to ensure the efficient transfer of heat from oil, air and cooling fresh water. For this, heat exchangers of the corresponding media are used, connected in series. In the current practice, the heat ex-changers along the course of the cooling outboard water are connected in series in a strictly de-fined order - an air cooler, then an oil cooler and the last fresh cooling water cooler. The article analyzes the efficiency of a standard connection of heat exchangers and proposes an alternative option for connecting heat exchangers according to the criterion of an increase in the average dynamic temperature of the medium as the cooling seawater increases. To compare the standard and alternative options for connecting heat exchangers along the outboard water, the total exergy losses of each of the options in the static mode of operation were calculated. Also presented are the results of calculating additional heat losses due to a sharp increase in the load of the main engine by 20% of the nominal one. Based on these calculations, a comparative analysis of the standard and alternative options for connecting heat exchangers was made.
Research of film liquid neutralization of gas emissions from ship power plants
Authors: Стаценко В.Н. , Леонтьев Л.Б. , Садыков Р.Х.
Published: December 2022

Для снижения концентрации вредных газовых выбросов и аэрозолей судовых дизелей предлагается использование жидкостной нейтрализации. В процессе нейтрализации организовано пленочное течение жидкости по вертикальным пластинам. При движении выхлопных газов или загрязненного воздуха между пластинами пленка жидкости как абсорбент интенсивно поглощает газообразные и твердые загрязняющие вещества. На экспериментальном стенде проведено исследование интенсивности абсорбции в пленку воды углекислого газа. В экспериментах изменялись скорость газа, расход жидкости, концентрация вредных веществ в газе. В результате анализа полученных результатов выявлена оптимальная скорость газа, оптимальное значение орошения. При этом концентрацию двуокиси углерода возможно снизить на 30-45 % на длине контакта 0,6-1 м. Обобщение полученных результатов в широком диапазоне изменения концентраций газа, расходов жидкости и скорости движения загрязненного газа получено в виде зависимости между критериями Нуссельта, Рейнольдса и Прандтля.

To reduce the concentration of harmful gas emissions and aerosols of marine diesel engines, the use of liquid neutralization is proposed. In the process of neutralization, a film flow of liquid over vertical plates is organized. When exhaust gases or polluted air move between the plates, the liquid film as an absorbent intensively absorbs gaseous and solid pollutants. On the experimental bench, the intensity of carbon dioxide absorption into the water film was studied. In the experiments, the gas velocity, liquid flow rate, and the concentration of harmful substances in the gas were changed. As a result of the analysis of the obtained results, the optimal gas velocity and the optimal irrigation value were revealed. At the same time, the concentration of carbon dioxide can be reduced by 30-45% at a contact length of 0.6-1 m. The generalization of the results obtained in a wide range of changes in gas concentrations, liquid flow rates, and the rate of movement of polluted gas is made in the form of a criterion dependence between the Nusselt, Reynolds and Prandtl criteria.
Results of experimental investigation of local heat fluxes on surface of cap cylinders of marine high speed diesel
Authors: Руднев Б.И. , Повалихина О.В.
Published: December 2022

Высокий уровень тепловой напряженности деталей, образующих камеру сгорания современных судовых дизелей, является одним из главных факторов, снижающих их эксплуатационную надежность и существенно затрудняющих их форсировку по параметрам рабочего процесса. Это заставляет исследователей уделять вопросам теплообмена в судовых дизелях все большее внимание с целью создания надежных математических моделей для задания граничных условий при оценке теплового и напряженно-деформированного состояния камеры сгорания на стадии проектирования. Как известно, результативность математического моделирования в технике во многом зависит от эффективности методов количественного анализа построенных моделей. При этом проверка их адекватности требует надежных опытных данных по параметрам локального теплообмена в камере сгорания судовых дизелей. Целью настоящей статьи является представление и обсуждение результатов экспериментального исследования локального теплообмена в камере сгорания судового высокооборотного дизеля типа 8 ЧН 13/14. Представленные в статье экспериментальные значения колебаний температуры и локальных тепловых потоков на поверхности крышки цилиндра указанного дизеля весьма существенно дополняют базу данных по параметрам локального теплообмена в камере сгорания. Это дает возможность еще на стадии проектирования провести количественный анализ построенных математических моделей и сделать прогноз эксплуатационной надежности деталей камеры сгорания судовых высокооборотных дизелей.

High level of thermal power of details developing of combustion chamber modern marine diesels, is one of the main factor decreasing its exploitation security and substance impeding their force according to parameters of working process. It causes researchers to pay more attention to questions of heat transfer in marine diesels with purpose design secure of mathematical models for the task boundary conditions foe value thermal and power-deform condition combustion chamber details during design. It is known that resulting of mathematical modelling in technics noticeably depends on efficiency of methods in quantity analysis developed models. Thus, verification adequate demand secure experimental data for parameters of local heat transfer in marine diesels combustion chamber. The purpose this article is presentation and discussion of experimental results in local heat transfer in marine high speed 8 ChN 13/14 diesel combustion chamber. Experimental data fluctuations of temperature and local heat fluxes on the surface cap of cylinder the diesel are given and addition base of data on parameters local heat transfer in combustion chamber. It is possible to make quantity analysis of mathematical models in design period and make prognosis of exploitation security in details of marine high speed diesels combustion chamber.