bluuebunny/crossref_metadata_2025 huggingface dataset:
Bridging the GAP: exploring the nexus between green human resource management, organizational citizenship behavior towards the environment, employee green commitment, and environmental performance in hotels
Authors: Tang Zhen , Amini Mohammad Yunes
Published: December 2023

The relationship between green human resource management (GHRM) and environmental performance (EP) has received little attention in the past, despite the hotel management discipline's mediation analysis being one of the areas examined.  To fill this research gap, the study expands upon the Ability-Motivation-Opportunity (AMO) and social identity theory (SIT). It also goes beyond what has already been written by examining the relationship between environmental performance and green human resource management by examining the roles of Employee Green Commitment (EGC) and Organizational Citizenship Behavior towards the Environment (OCBE). According to a survey conducted on 273 hotel employees, it has been found that GHRM plays a positive and significant role in promoting Organizational Citizenship Behavior towards the Environment (OCBE), Employee Green Commitment (EGC), and environmental performance (EP) of hotels. Additionally, implementing green human resource management can have a considerable and favorable influence on both environmental performance and employees' commitment to eco-friendliness. It was observed that organizational citizenship behavior toward the environment and employee green commitment play a significant role in mediating the relationship between Green human resource management and hotel environmental performance. The data from the survey were analyzed using Smart-PLS 4 which involved conducting validity and reliability tests on the instruments and testing the hypothesized relationships using SEM analysis. Based on this report, it is recommended that HR managers and hotel top management develop green HRM policies to promote sustainability in the hospitality industry.
Developing the integrity of corruption crime judges: evidence in Indonesia
Authors: Wibisana Andi Wahyu
Published: December 2023

This research seeks to further investigate issues pertaining to enhancing the integrity of judges handling corruption cases in Indonesia. The research employs a normative juridical perspective and utilizes a qualitative method that is descriptive and analytical in character. This method aims to objectively describe the relationship between a phenomena, idea, data, or fact. The data collection methods involved conducting library research and analyzing primary, secondary, and tertiary legal sources, including scientific contributions published in academic research databases. Meanwhile, the research employs descriptive qualitative analysis for data analysis. Research indicates that it is imperative to cultivate the integrity of judges involved in corruption cases, as judges play a pivotal role in ensuring a fair and responsible legal system. A judge who possesses integrity in cases involving corruption is characterized by intellectual honesty, a commitment to prioritize their judicial responsibilities over personal interests, adherence to the law, astuteness in interpersonal interactions and other endeavors, adeptness in managing personal funds, and a rigorous and meticulous approach. Perform judicial responsibilities to establish an organizational culture rooted in the principle of absolute intolerance against criminal acts of corruption, bribery, and violations of laws and regulations. Thus, by enhancing the integrity of judges involved in corruption cases in Indonesia through the implementation of human resource management characteristics, it is expected that the impartiality and responsibility of judges in handling corruption cases would be considered to fulfill the standards of fairness and legal assurance. Therefore, it is anticipated that the results of this study will have a beneficial impact on upholding and enhancing the integrity and prestige of judges and the judicial system in Indonesia with regards to corruption offenses.
Numerical investigation of the effective mechanical properties of Octet Truss lattice structures with different strut geometry
Authors: Ghahramanzadeh Asl Hojjat , Altıntaş Kahriman Elif , Karaman Derya
Published: December 2023

Lattice structures have an important role in lightweight structure applications as they can supply their mechanical performance with less material. Porous structures designed with inspiration from nature, has been used in many industries such as aerospace, automotive, defense industry and biomedical field. In order to continue these advances, studies on various design configurations of porous structure geometries are carried out. This study aimed to increase the usage potential of Octet Truss lattice structures in various sectors. A numerical model is created for 3 variable parameters: strut geometry, porosity, and material type. The effective elastic modulus values are determined based on the principles of Hooke's law for each model. Based on the obtained effective elastic modulus values, it has been concluded that differences in strut geometries, porosities, and material types contribute to 1.27%, 68.85%, and 29.86% of the observed effects, respectively. In order to establish a correlation between these factors, the data is transmitted to the MATLAB software, where equations are generated using the curve fitting approach. A total of nine equations have been generated and the R-square for these equations above 0.99. According to the two desired constant values, the effective elastic modulus can be calculated using these equations without any restrictions.
“Greening” the National Growth: How Global Green Growth Institute (GGGI) Collaborates with Indonesia in 2014-2020
Authors: Rudiany Novita Putri , Yesandi Keista Puti
Published: December 2023

With its natural richness, Indonesia is not immune from environmental, economic, and social problems. Indonesia remains facing the problem of greenhouse gas (GHG) emissions and environmental degradation resulting from economic activities caused by business-as-usual (BaU) activities. Therefore, Indonesia has developed a framework for a green growth program for national economic development with the Global Green Growth Institute (GGGI) since 2014. GGGI is an international organization that is specifically concerned about green growth at the global level. The Green Growth Concept was agreed upon at the 2005 Asia Pacific ministerial meetings in Seoul, South Korea. Indonesia also ratified the agreements to implement this green growth concept at the national level. This research elaborates on how GGGI, as a global actor, collaborates with Indonesia to develop the green growth framework. This study uses a descriptive qualitative research method with secondary data collection through literature, which will discuss GGGI's efforts to help implement the green growth program in Indonesia in 2014-2020. The case study is analyzed through the Management Approach, Normative Approach, and Enforcement Approach approaches. Through these three approaches, GGGI has succeeded in assisting Indonesia in implementing green growth in Indonesia in 2014-2020. Some of the programs that have been achieved include the eCBA program, the development of Special Economic Zones (KEK), and the implementation of the legal regulations in force in Indonesia.
Some biological aspects of indian mackerel (Rastelliger kanagurta Cuvier, 1817) in Bali Strait waters
Authors: Parawangsa I Nyoman Yoga , Tampubolon Prawira Atmaja
Published: December 2023

Indian mackerel (Rastrelliger kanagurta Cuvier, 1817) is a small pelagic fish species which is the main catch commodity in purse seine and jukung fleets in the Bali Strait waters. Sustainable management is urgently needed for indian mackerel populations in Bali Strait waters to remain sustainable fishery. The availability of basic information such as biological aspects is very important as a fundamental resource in the management of indian mackerel in Bali Strait waters. The aims of this study were to reveal several biological aspects of mackerel such as growth patterns, condition factors, sex ratio, and size at first maturity of indian mackerel in Bali Strait waters. Sampling was carried out in May-September 2018. Samples of fish were taken from purse seine and jukung fleets using trawl nets and gill nets. Fish sample was measured, weighed and dissected to observe the sex and the gonadal maturity stage. The total number of indian mackerel samples was 167 individuals. Mackerel in the Bali Strait waters has a positive allometric growth pattern with fish in good condition. The sex ratio was in an unbalanced condition with the number of male fish being more than the female fish. The size at first maturity was 19.34 cm for male fish and 19.76 cm for female fish.
New Possibilities for Women’s Empowerment through Agroecology in Himachal Pradesh, India
Authors: Behl Punam , Osbahr Henny , Cardey Sarah
Published: December 2023

In 2018, the state of Himachal Pradesh in north India launched an initiative to convert all its farmers to natural farming (NF), an agroecological approach. The aim was to address multiple challenges related to rural livelihoods, high input costs, biodiversity loss, and environmental degradation. This paper is based on a qualitative case study of the state programme to transition farmers to NF. It seeks to understand how its mechanisms support and empower small and marginal women farmers. In addition to identifying mechanisms that facilitate the effective uptake of NF, the case study sought women's views on whether these increased spaces for decision-making and developed capabilities and autonomy. Framed within the vision of reclaiming food sovereignty, various mechanisms such as training in villages, participating in NF groups and networks, visits to model farms and adopting leadership roles offered new pathways for women farmers to gain confidence and capabilities. Women began to participate in spaces that had been culturally and structurally denied to them. This case study illustrates how agroecology efforts with a specific focus on gender have the potential to provide women with creative outlets and a variety of decision-making and income-generating roles, spaces for community learning and knowledge needed for sustainable ecosystems.
Artificial Intelligence Techniques for Fraud Detection
Authors: Lai Guangsheng
Published: December 2023

In the wake of increasing digital fraud, this paper introduces an innovative application of Artificial Intelligence (AI) in detecting fraudulent activities across finance, healthcare, and e-commerce sectors. It presents a detailed analysis of machine learning methodologies, specifically focusing on the advantages of supervised, unsupervised, and deep learning techniques. The paper addresses the challenges such as data imbalance, model interpretability, and ethical implications in AI-based fraud detection. It also discusses the necessity of high-quality datasets and advocates for the integration of traditional and advanced machine learning methods to enhance accuracy and adaptability in fraud identification. However, it acknowledges the limitations including computational demands and overfitting risks. The study underscores the importance of collaborative efforts between AI experts and industry professionals to develop ethical, efficient, and reliable AI solutions for fraud detection.
The Role of a Simple Inerter in Seismic Base Isolation
Authors: Jangid R.S.
Published: December 2023

The present study investigates the role of a simple inerter in supplemental devices for possible implementation in the matured seismic base isolation technique. Firstly, the response of the base-isolated structure with an optimally tuned mass damper-inerter (TMDI) is investigated to see the tuning effects. The time required to tune the TMDI was found to be significantly longer than the duration of a strong-motion earthquake. There was still a reduction in the response of the isolated structure, which is primarily due to the added damping and stiffness (ADAS) of TMDI and not because of the tuning effects. Hence, it is proposed that the corresponding ADAS of the TMDI be directly added to the isolation device. Secondly, the response of the base-isolated structures with the fluid inerter damper (FID) is studied. It was observed that the inerter of the FID does not influence the displacement variance of an isolated structure under broadband earthquake excitation. It implies that the response of the isolated structure with FID is primarily controlled by its counterpart fluid damper (FD). The performance of optimal TMDI, ADAS, FID, and FD to mitigate the seismic response of the flexible multi-story base-isolated structure under real earthquake excitations is also investigated. In terms of suppressing the displacement and acceleration responses of the isolated structure, it has been found that TMDI and ADAS perform similarly. Comparing the response of the isolated structure with FID and FD demonstrated that the inerter in the FID has detrimental effects on the isolated structures, in which the top floor's acceleration and base shear are substantially increased.
On Automated Object Grasping for Intelligent Prosthetic Hands Using Machine Learning
Authors: Odeyemi Jethro , Ogbeyemi Akinola , Zhang Wenjun , Wong Kelvin
Published: December 2023

This paper explores the application of machine learning techniques for automated object grasping. Current electronic prosthetics often require extensive training for users to gain fine motor control over the prosthetic fingers, hindering their usability and acceptance. To address this challenge, this paper proposes an automated method that leverages computer vision-based techniques and machine learning algorithms. In this study, three reinforcement learning algorithms, namely Soft Actor-Critic (SAC), Deep Q-Network (DQN), and Proximal Policy Optimization (PPO), are employed to train agents for automated grasping tasks. The results indicate that the SAC algorithm achieves the highest success rate of 99% among the three algorithms at just under 200,000 timesteps. This research also shows that object’s physical characteristics can affect the agent’s ability to learn an optimal policy. Moreover, the findings highlight the potential of the SAC algorithm in developing intelligent prosthetic hands with automatic object gripping capabilities.
Substantiation of the Sample Size for Assessing a Diagnostic Accuracy of Software Based on AI Technology for Diagnostic Radiology
Authors: N.Yu. Nikitin , K.M. Arzamasov , Yu.A. Vasiliev , T.M. Bobrovskaya , S.F. Chetverikov , O.V. Omelyanskaya , A.V. Vladzymyrskyy
Published: December 2023

In the literature, the question of the amount of data necessary and sufficient to validate different models of the occurrence of risk of adverse events for patients or the classification of the presence or absence of pathological features has been repeatedly raised. In the presented study, we propose a new approach to determine the necessary and enough studies for validation of medical software based on artificial intelligence technology, whose main task is to classify medical X-rays according to the presence of normality and pathology. It is shown that for several studies in a dataset, when AUC ROC has maximum heterogeneity, it varies depending on the balance of "norm"/"pathology" classes. Thus, for a balance of "normal"/"abnormality", where 90% is "normal" and 10% is "abnormality", maximum heterogeneity is achieved for 190 studies, for a balance of 80% ("normal")/20% ("abnormality") for 80 studies, for a balance of 70% ("norm")/30% ("abnormality") - 120 trials, for a balance of 60% ("norm")/40% ("abnormality") the maximum heterogeneity is reached at 110 trials, and for a balance of 50% ("norm")/50% ("abnormality") - at 70 trials. The obtained data are in good agreement with the previous results. They allow us to determine a sufficient (necessary) number of studies in the dataset to perform an unbiased assessment of AUC ROC.
Transcutaneous posterior tibial nerve stimulation: an adjuvant treatment for intractable constipation in children
Authors: Rego Rebeca Mayara Padilha , Machado Nilton Carlos , Carvalho Mary de Assis , Graffunder Johann Souza , Fraguas Crhistiano , Ortolan Erika Veruska Paiva , Lourenção Pedro Luiz Toledo de Arruda
Published: December 2023

BACKGROUND: Functional constipation can lead to painful defecations, fecal incontinence, and abdominal pain, significantly affecting a child's quality of life. Treatment options include non-pharmacological and pharmacological approaches, but some cases are intractable and require alternative interventions like neuromodulation. A subtype of neuromodulation, called Transcutaneous Posterior Tibial Nerve Stimulation (TPTNS), comprises electrical stimulation at the ankle level, by means of electrodes fixed to the skin. TPTNS is a minimally invasive, easy-to-apply technique that can potentially improve constipation symptoms in the pediatric population by stimulating the sacral nerves.
AIM: To evaluate the clinical results and applicability of TPTNS as an adjuvant treatment for children and adolescents with functional constipation. METHODS: Between April 2019 and October 2021, 38 patients diagnosed with functional constipation according to the Rome IV Criteria were invited to participate in the study. The study followed a single-center, uncontrolled, prospective cohort design. Patients received TPTNS for 4 or 8 weeks, with assessments conducted immediately after the periods of TPTNS and 4 weeks after the end of the intervention period. The data normality distribution was determined by the Shapiro-Wilk test. Wilcoxon test and Student's t-test for paired samples were used to compare quantitative variables, and the McNemar test was used to compare categorical variables. RESULTS: Of the 38 enrolled patients, 28 children and adolescents with intractable function constipation completed the study, receiving TPTNS for 4 weeks. Sixteen patients (57.1%) extended the intervention period for 4 extra weeks, receiving 8 weeks of intervention. TPTNS led to significant improvements in stool consistency, frequency of defecation, and bowel function scores, with a reduction in abdominal pain. Quality of life across physical and psychosocial domains showed substantial enhancements. The quality of life-related to bowel habits also improved significantly, particularly in lifestyle, behavior, and embarrassment domains. The positive effects of this intervention are seen relatively early, detected after 4 weeks of intervention, and even 4 weeks after the end of the intervention. TPTNS was well-tolerated, with an adherence rate of approximately 78%, and no adverse effects were reported. CONCLUSION: TPTNS is an adjuvant treatment for intractable functional constipation, improving bowel function and quality of life. The effects of TPTNS were observed relatively early and sustained even after treatment cessation.
Did the Pandemic Affect the Quality and Level of Knowledge and Performance (Case Study)
Authors: Dineva Snezhana Boycheva , Todorov Apostol , Hristov Vasil , Geordiev Krasimir , Atanasov Svetoslav
Published: December 2023

The pandemic was an enormous experience all over the world. The type of living, working and study were changed irreversibly. Facing the opportunity to establish old frames of education in universities is impossible. The adoption of new ways of teaching and assessments reveal their convenience and in the same way their weak points. In response to that stage, on 14 December 2022, the EU parliament accepted the "Digital Decade Policy Programme 2030", for the establishment of a digital transformation community (EU 2022). Trakia University had an online assessment system, quizzes for self-training, and final exams, developed in 2008 on Moodle virtual learning environment. During the pandemic, online exams and lectures were conducted using platforms like BigBlueButton in Moodle or Google Meets. The article gives the results of online exams before, during, and after the pandemic. The outcome, without doubt, displays the lowering knowledge level or performance during the social isolation due to COVID-19, and after, and the reasons are discussed. During the second year of the pandemic was mentioned also a high dropout of students. Now the situation is returning to the previous levels, before the pandemic, but the quality of education is not yet reached. The article values the grades results of session exams and has the intention to clarify the influence of the pandemic period on the excellence of high institution education.
Topology Optimization Of A Single Point Diamond Turning Fixture For A Deployable Primary Mirror Telescope
Authors: Bourgenot Cyril , Krumins Valdis , Bramall David G. , Haque Abdul M.
Published: December 2023

CubeSats, known for their compact size and cost-effectiveness, have gained significant popularity. However, their limited size imposes restrictions on optical aperture and, consequently, Ground Resolution Distance in Earth Observation missions. To overcome this limitation, the concept of deployable optical payloads with segmented primary mirrors which can unfold like petals has emerged, enabling larger synthetic apertures and enhanced spatial resolution. This study explores the potential benefits of leveraging Additive Manufacturing (AM) and Topology Optimization (TO) in the realm of ultra-precision machining, specifically single point diamond machining. The goal is to reduce fixture weight while improving stiffness to minimize deformations caused by rotational and cutting forces which compromise optical performance. Through Finite Element Analysis, this research compares conventionally machined fixtures with those produced using AM and TO techniques. The results reveal that concept designs created through TO can achieve a remarkable 68% reduction in weight. This reduction makes the assembly, including the machining fixture and 12U deployable segments, manageable by a single operator without the need for specialized lifting equipment. Moreover, these innovative designs lead to substantial reductions of up to 86% and 51% in deformation induced by rotational and cutting forces, respectively.
Kajian Sosiologi Hukum Tentang Tingkat Kepercayaan Masyarakat Terhadap Aparat Penegak Hukum
Authors: Putri Larashati , Imanullah Mochammad Najib
Published: December 2023

Menurunnya kepercayaan masyarakat terhadap apparat penegak hukum menjadi fenomena yang cukup sering erjadi belakangan ini. Banyaknya aparat penegak hukum yang terlibat atau bahkan menjadi pelaku dalam tindak kejahatan menjadi salah satu penyebabnya. Penelitian ini bertujuan untuk mengetahui fenomena apa saja yang membuat turunnya kepercayaan masyarakat terhadap aparat penegak hukum agar dapat memberikan solusi untuk menangani menurunnya kepercayaan masyarakat terhadap aparat penegak hukum. Penelitian ini menggunakan metode yuridis normative dengan melalui studi kepustakaan yang dianalisis secara deskriptif. Menurunnya kepercayaan masyarakat terhadap aparat penegak hukum terjadi karena banyaknya pemberitaan mengenai pelanggaran yang dilakukan oleh para aparat penegak hukum baik yang hanya terlibat dalam kejahatan maupun yang menjadi pelaku kejahatan. Kasus yang melibatkan aparat penegak hukum yang belakangan ini sangat menarik perhatian public di antaranya adalah kasus pembunuhan Brigadir J dengan tersangka pimpinan Kepolisian dan bawahannya, serta kasus tragedy meninggalnya ratusan supporter Arema FC di stadion Kanjuruhan. Dua kasus tersebut terbukti membuat kepercayaan masyarakat terhadap aparat penegak hukum anjlok dalam dua bulan terakhir menjadi 53% berdasarkan survei LSI. Kepercayaan public terhadap aparat penegak hukum dapat dipulihkan kembali bila masyarakat memiliki rasa aman yang tinggi. Inti dari kepercayaan terhadap polisi hanya dapat diperoleh bila kepolisian memberi perlindungan dan rasa aman kepada masyarakat.
Kelurahan Damai Tipes Sebagai Semi Autonumous Social Field dalam Pemberantasan Tindak Pidana Terorisme
Authors: Kristiyanto Adi Cahyaning
Published: December 2023

Tujuan Penelitian ini adalah untuk melihat terjadinya pluralisme hukum dan terbentuknya Semi Autonomous Social Field (SASF) di “Kelurahan Damai Tipes dalam pelaksanaan Undang-undang Nomor 5 Tahun 2018 Tetang Pemberantasan Tindak Pidana Terorisme.  Pesatnya perubahan masyarakat seringkali menjadikan hukum Negara tidak mungkin lagi menjangkau setiap permasalahan yang ditimbulkannya. Untuk mencapai keteraturan dan ketertiban hukum kemudian kelompok masyarakat bersepakat membuat hukum sendiri sebagai sebuah realitas hukum. Tidak bisa lagi kita menempatkan sebuah hukum sebagai sesuatu yang berdiri sendiri, sesungguhnya bahwa setiap hukum yang ada selalu berinteraksi dengan tertib hukum lain, keteraturan hidup bersama yang berasal dari legitimasi yang berbeda dari hukum negara atau saat ini lazim disebut sebagai pluralisme hukum. Di Indonesia fenomena pluralism juga sering terjadi, antara lain terkait dengan penanggulangan terorisme. Sejumlah peraturan perundangan tersebut hanya mengarah kepada penegakkan hukum untuk menindak terduga terorisme, dan Rencana Aksi Nasional masih bersifat administrative. Permasalahan ditengah masyarakat yang timbul akibat dari proses penegakkan hukum terkait dengan mekanisme dan prosedur tetap penangkapan maupun penembakan terduga teroris yang dilakukan oleh aparat Kepolisian melalui Densus 88 yang terlihat heroik ternyata telah menimbulkan gangguan psikologis di dalam masyarakat tidak saja bagi keluarga terduga teroris tetapi juga masyarakat sekitar tempat tersebut, kecurigaan antar masyarakat yang menyebabkan gangguan terhadap kohesifitas masyarakat tersebut. Hal-hal inilah yang tidak mampu diselesaikan oleh hukum Negara yang telah ada, kearifan lokal dari masyarakat setempat menjadi penting untuk mengisi kekosongan hukum tersebut, oleh karenanya Kelurahan Tipes membentuk sebuah komunitas bersama yang disebut dengan “Kelurahan Damai Tipes”
Perlindungan Hukum Terhadap Konsumen Pinjaman Online Berkeadilan dan Kepastian Hukum
Authors: Putra Amir Hidayatul , Waluyo Waluyo
Published: December 2023

Perkembangan teknologi dalam kehidupan masyarakat memiliki pengaruh dalam perekonomian sosial. Adanya layanan jasa keuangan yang berbentuk pinjaman online memudahkan masyarakat memperoleh modal secara singkat untuk memenuhi kebutuhan hidupnya. Penelitian ini bertujuan menganalisis keabsahan serta kekuatan hukum dan perlindungan hukum bagi konsumen pinjaman online. Layanan pinjaman online harus didaftarkan pada Otoritas Jasa Keuangan untuk membantu pembangunan ekonomi negara dan masyarakat. Perjanjian didasarkan pada kesepakatan antara kedua belah pihak dengan persyaratan yang diatur dalam Kitab Undang-Undang Hukum Perdata dan Undang-Undang yang terkait dengan bukti yang dibuat secara elektronik. Pengoperasian layanan diharuskan untuk melindungi data privasi setiap para pihak agar menjamin kepastian hukum bagi konsumen sesuai yang diatur dalam Peraturan Otoritas Jasa Keuangan   Nomor   1/POJK.07/2013   tentang   Perlindungan   Konsumen   Sektor   Jasa Keuangan dan Pasal 1 angka 1 Undang-Undang Nomor 8 Tahun 1999 tentang Perlindungan Konsumen.
Implikasi Penerapan Putusan MK Nomor 53/PUU-XV/2017 Terhadap Demokrasi di Indonesia
Authors: Pratama Andhika Handy , Riwanto Agus
Published: December 2023

Pemilihan umum merupakan sebuah sarana bagi masyarakat untuk memilih pemimpin yang dapat merepresentasikan kepentingan mereka. Mekanisme ini menjadi bagian penting dalam sebuah sistem pemerintahan yang demokratis. Sebagaimana diungkapkan oleh Joseph Schumpeter, pemilihan umum menjadi penanda penting yang membedakan sistem pemerintahan demokrasi dan sistem pemerintahan yang lainnya. Indonesia sebagai negara yang menerapkan sistem demokrasi telah melaksanakan prosedur pemilihan langsung untuk dapat menentukan berbagai jabatan publik sesuai dengan ketentuan Undang-Undang yang berlaku. Kendati demikian, terdapat aturan yang membatasi kontestasi politik tersebut dengan minimal capaian presidential threshold sebagai syarat bagi parpol untuk mencalonkan bakal calon presiden dan wakil presiden. Dengan menggunakan metode penelitian kualitatif dan pendekatan doctrinal, terlihat bahwa Putusan MK nomor 53/PUU-XV/2017 yang menyatakan bahwa pemberlakuan presidential threshold tidak menciderai konstitusi telah menuai berbagai kritik. Berdasarkan pada kriteria demokrasi electoral yang mementingkan kedaulatan rakyat untuk ikut berperan dalam pembuatan kebijakan public melalui kontestasi politik untuk mendulang suara rakyat, maka penerapan presidential threshold dapat dikatakan telah memberikan hambatan dalam pemberlakuan demokrasi elektoral.
Hukum Ketenagakerjaan sebagai Instrumen Pelindung Bagi Tenaga Kerja dan Pengusaha dalam Penanganan Masalah Hubungan Kerja
Authors: Rosita Karunia , Waluyo Waluyo
Published: December 2023

Mewujudkan perlindungan bagi tenaga kerja dalam proses hubungan kerja dengan maksud menciptakan keteraturan yang bermanfaat baik bagi tenaga kerja atau pengusaha sebagai pemberi kerja. Hukum ketenagakerjaan diharapkan menjadi solusi yang dapat dirasakan manfaatnya secara maksimal guna membangun tatanan nilai dalam mengatur hubungan kerja itu sendiri. Mulai dari dimulainya hubungan kerja, proses berlangsungnya hubungan kerja hingga berakhirnya hubungan tersebut. Dalam tulisan ini, penulis mencoba menghadirkan kaitan hubungan kerja dengan teori relevan yang dicetuskan oleh Karl Mark dengan mengusung pembahasan tentang hukum yang dijelaskan sebagai alat legitimasi dari ekonomi tertentu. Sehingga dalam hal keterkaitan antara pengusaha sebagai pemberi kerja dan tenaga kerja sangat memiliki pengaruh diantara keduanya dengan maksud adanya kemungkinan ketimpangan yang terjadi sejauh proses hubungan kerja tersebut. Melalui metode studi kepustakaan dengan sumber yang relevan termasuk segala bentuk peraturan yang berhubungan dengan hukum ketenagakerjaan dijadikan dasar dalam penulisan ini. Dan dari apa yang telah dibahas maka dapat ditarik kesimpulan bahwa setiap peraturan tentang hukum ketenagakerjaan diharapkan dapat memaksimalkan fungsinya dalam memberikan kebermanfaatan bagi pengusaha sebagai pemberi kerja dan tenaga kerja selama proses hubungan kerja berlangsung hingga selesai.
MATHEMATICAL MODEL AND OPTIMIZATION ALGORITHM ACCORDING TO THE CRITERIA OF MINIMUM CONTACT STRESS FOR GEARS WITH CONVEX-CONCAVE CONTACT
Authors: Levin Nickita , Ustinenko Oleksandr , Bošanský Miroslav , Protasov Roman , Bondarenko Oleksiy , Andrienko Sergij
Published: December 2023

Reducing the mass and dimensions of gears is an actual task of modern mechanical engineering. One of the perspective ways to solve it is the use of gearing with a convex-concave contact of the teeth. The study is devoted to the development of mathematical model and algorithm for the optimal design of cylindrical gears with convex-concave contact of the working surfaces. Optimality criteria: minimum contact stresses taking into account design, geometrical and technological constraints. An objective function is constructed for the case of minimizing contact stresses: contact stresses σH in the mesh must take the minimum possible value when all constraints are met. Variables planning are defined. These are pressure angle at the pole αС, the curvature radius at the upper part of contact path rkh, and the curvature radius at the lower part of contact path rkd. A method for solving the problem of optimal design is chosen – probing the space of design parameters was chosen from all the variety. The points of the LPτ-sequence are used as test points. The algorithm for optimal design of gear has been developed. They take into account the constructive, technical and technological features. They also allow to reduce the error of the calculations due to the error-control of the calculations. The main stages of the algorithm are as follows: setting input data (numerical constraints on design variables, gear parameters and its load); generation of LPτ-sequence for variables planning with simultaneous consideration of their numerical constraints; checking of functional constraints; additional verification calculations (if necessary) of the gearing contact strength; formation of an array of possible solutions; searching of the best solution variant (the test point corresponding to the minimum value of the objective function) by sorting the array.
Keywords: gear, convex-concave contact, optimization, objective function, variables planning, algorithm
ANALYSIS OF RESEARCH ON PLANETARY GEARBOXES OF ARMORED VEHICLES (REVIEW ARTICLE)
Authors: Sierykov Volodymyr
Published: December 2023

The work is devoted to the review of modern trends in the research and use of planetary gearboxes of armored vehicles. An analysis of the areas of application of mechanical transmissions was carried out. The advantages and disadvantages of using gear gearboxes as part of mechanical transmissions are described. The design features of the use of gears in transmissions are considered. The requirements for gear gearboxes as part of transmissions are defined. The advantages and disadvantages of using planetary gearboxes and their areas of use are analyzed. The classification of mechanical adjustable gears according to general features, as well as individual ones, is considered. An overview of the fulfillment of the conditions for increasing reliability was carried out, taking into account the design features of stepped gearboxes, which are divided into three groups: simple gearboxes (with fixed shaft axes); planetary gearboxes (with movable shaft axes); combined (combination of a simple and planetary gearbox in one unit). A brief review of modern approaches to planetary gear box modeling, taking into account inertial, elastic, dissipative, transformer and frictional properties, taking into account other characteristic features of the planetary series, is carried out. An analysis of known ways of solving problems of such modeling was carried out. Modern methods of calculating the strength of planetary gearboxes, including those with partial destruction, and corresponding software complexes are analyzed. The need for the development of more advanced mathematical models that adequately describe the stress-strain state in gear engagements has been identified.
Keywords: design, planetary gearboxes, mechanical transmission, influence of operating factors, diagnostic parameters, synthesis of kinematic schemes
DETERMINATION OF CHARACTERISTICS OF FATIGUE CRACKS GROWTH IN THE AXLES OF RAILWAY CARRIAGES
Authors: Khomiak Yuriy , Kibakov Oleksandr , Gerasymov Igor
Published: December 2023

Providing damage resistance is the most important requirement presented to railway axles. This paper provides a detailed review of the characteristics of resistance to fatigue crack growth in axles made of EA4T steel (25CrMo4). This steel is typical for axles of high-speed rolling stock. Resistance to fatigue crack growth is defined by the nature of the Paris-Erdogan curve da/dN=CKm, the parameters of which are the coefficient C and the exponent m. Determination of these parameters is based on the results of fatigue tests with the samples or with full-scale axles having cracks. The analysis of numerous scientific papers has shown that for the specified steel there is a significant scatter in the values of these parameters. This scatter is caused by a number of factors, the main of which are: the difference in test objects (from small samples of the SE(B) type to full-scale rolling axles 190 mm in diameter); the difference in loading methods (tension-compression, flat bending, circular bending); the variation of mechanical properties of EA4T steel. In the paper the models of surface fatigue crack geometry are analyzed and semi-elliptical shape of crack front line is selected as the most acceptable. The significant scatter in the values of the parameters m and C prevents to establish reliably the residual life of axles with cracks, which is an important characteristic for practical forecasting of axle survivability. The technique for parameters m and C optimization in view of semi-elliptical shape of the crack front line has been developed. The relationship linking the parameters m and C has been established. The method for determining the residual life of the axle by the criterion of non-destruction is proposed. The dependence between the residual life and the value of the parameters of the Paris-Erdogan equation in the development of fatigue failure is established. The procedure for axles monitoring timeframes setting to prevent their fatigue failure is discussed.
Keywords: parameters of Paris-Erdogan equation, fatigue crack, residual life of axle.
"OLUH" Olahan Blimbing Wuluh Khas Desa Kalitengah
Authors: Taurusta Cindy
Published: December 2023

Puji syukur kami panjatkan kehadiran Allah SWT, karena atas rahmat dan karunianya-Nya sehingga buku pengabdian kepada masyarakat UMSIDA di Desa Kalitengah tahun 2019 dapat diselesaikan dengan baik dan tepat pada waktu yang telah ditentukan. Sholawat serta salam pun kami haturkan kepada junjungan kita Nabi Besar Muhammad SAW dan para sahabatnya, yang telah memberikan tauladan baik sehingga akal dan fikiran penyusun mampu menyelesaikan Buku Pengabdian M asyarakat ini, semoga kita termasuk umatnya yang kelak mendapatkan syafa’at dalam menuntut ilmu.
Membangun Generasi Berliterasi Di Damarsi
Authors: Putra Boy Isma
Published: December 2023

Puji syukur kami panjatkan kehadirat Allah S.W.T yang telah menganugerahkan rahmat serta hidayah-Nya sehingga penyusunan Laporan Akhir Abdimas Terpadu ini dapat terselesaikan. Shalawat serta salam senantiasa tercurah kepada Nabi Muhammad S.A.W yang telah menuntun kita dari jalan jahiliyyah menuju jalan yang di ridlo’i Allah yakni addinul islam. Program Abdimas Terpadu merupakan pelaksanaan Catur Dharma Perguruan Tinggi Universitas Muhammadiyah Sidoarjo. Dengan mengambil topik (tema) “Membangun Generasi Berliterasi” yang bertempat di SMP Wachid Hasyim 11, Desa Damarsi Kecamatan Buduran Kabupaten Sidoarjo. Pelaksanaan Abdimas Terpadu dimulai dari tanggal 01 Agustus 2019 s/d 06 Oktober 2019. Sasaran untuk tema membangun generasi berliterasi adalah seluruh warga SMP Wachid Hasyim 11.
Monitoring Technology of Surrounding Rock Deformation Based on IWFBG Sensing Principle and Its Application
Authors: Zhu Yuanguang , Wang Sheng , Liu Bin , Liu Xuewei , Kang Yongshui
Published: December 2023

To address the challenge of achieving precise real-time monitoring of significant deformation in deep roadway surrounding rock, a quasi-distributed strain-sensing cable (SSC), which has a spatial resolution of 1 m, was developed based on the principle of Identical Weak Fiber Bragg Gratings. The performance of SSC has been evaluated through a series of calibration tests, revealing a range of 0%–3%, an accuracy level of 0.5%, a strain sensitivity measuring at 1.23 pm/με, and a temperature sensitivity recorded as 10.78 pm/℃. Furthermore, a real-time deformation monitoring system has been established to monitor rock deformation, consisting of SSC, supporting installation equipment, demodulation equipment, and monitoring software. Moreover, the proposed methodology was applied in the deep roadway of Guqiao coal mine. The results showed that the maximum surface displacement of the roadway is 103.47 mm, while the lateral contrast error stands at 5%. The maximum strain value of the surrounding rock measures 27,095 με. The depth of rock rupture zone is about 3 m, while the boundary of rock damage zone extends up to 6 m. This information serves as the foundation for determining the parameters of the roadway reinforcement support design.
Malestares emocionales y estrategias de afrontamiento de migrantes LGBTQ en tránsito por México
Authors: Berenzon-Gorn Shoshana , Galván-Reyes Jorge , Alanís-Navarro Sarahí , Medina-Mora Ma. Elena , Saavedra-Solano Nayelhi
Published: December 2023

Objetivo. Describir los malestares emocionales y las estrategias de afrontamiento utilizadas, de un grupo de migrantes de la comunidad LGBTQ (lesbiana, gay, bisexual, transgénero y queer) en su país de origen y en los de tránsito y destino, y analizar la intersección con otras categorías como nacionalidad, clase social, género y orientación sexual, entre otras. Material y métodos. Estudio cualitativo que analiza las narrativas de 25 migrantes LGBTQ en movilidad por México hospedados en dos albergues ubicados en Ciudad de México (CDMX) y Tijuana. La información se obtuvo por medio de entrevistas semiestructuradas realizadas entre octubre de 2021 y junio de 2022. Se utilizó la técnica de categorización de significados para el análisis del material discursivo. Resultados. La discriminación de género y por orientación sexual son más graves en algunos países centroamericanos. Los malestares emocionales que genera esta discriminación responden a la intersección entre género, orientación sexual y clase social, vividos en un contexto permisivo con la violencia organizada, la impunidad y la precariedad regional. Las estrategias más utilizadas para afrontar los malestares fueron búsqueda de apoyo y distracciones, afrontamiento pasivo y emigración. Todas resultan limitadas porque ayudan temporalmente. Conclusiones. La emigración es una estrategia con un alto costo para la estabilidad y el bienestar emocional.
Migración por inseguridad y violencia en México previo a la pandemia de Covid-19: vulnerabilidades y características
Authors: Rodríguez Oscar , Masferrer Claudia
Published: December 2023

Objetivo. Analizar los lugares que habitaban las personas que migraron por inseguridad y violencia en marzo de 2020 –antes del inicio de la pandemia–, así como sus condiciones socioeconómicas y demográficas. Material y métodos. Utilizando los microdatos del Censo de Población y Vivienda de 2020 y un análisis de correlación espacial, primero se determinaron las regiones atrayentes de migrantes por inseguridad y violencia que mostraron bajos niveles de violencia, previo a la pandemia de Covid-19. Posteriormente, se analizaron las características socioeconómicas y demográficas de estos migrantes respecto a otros migrantes internos y se compararon con aquellos en otros destinos. Resultados. Los migrantes internos por inseguridad y violencia enfrentan vulnerabilidades en términos de empleo y afiliación a servicios de salud previo a la pandemia. Conclusión. Los efectos de la pandemia y el confinamiento pudieron ser mayores para estos migrantes.
Dinámica de movilidad y salud de mujeres migrantes en México, en el contexto de la pandemia Covid-19, 2021-2022
Authors: Quintino-Pérez Frida , Montoya Alejandra , Gómez-López Diana , Vázquez-Aguilar Esther , Cortés Alcalá Ricardo , Leyva-Flores René
Published: December 2023

Objetivo. Analizar los factores sociodemográficos, dinámica de movilidad, problemas de salud y utilización de servicios de salud por mujeres migrantes durante la pandemia de Covid-19 en México. Material y métodos. El estudio transversal incluyó a 668 usuarias de Casas de migrantes en México. Se realizó un análisis de clases latentes (ACL) para categorizar dos tipologías: migración económica/laboral y forzada. Se aplicaron modelos de regresión logística para evaluar la relación entre movilidad y utilización de servicios de salud. Resultados. Las mujeres en migración forzada presentan mayor prevalencia de problemas de salud (36.1 vs. 24.2%; p=.001) que las migrantes económico/laborales. Predominaron infecciones respiratorias y gastrointestinales, heridas/lesiones, sin diferencias entre ambos grupos. El 70% de los problemas fue atendido en Casas del migrante y otras organizaciones sociales que brindan servicios de salud. Conclusiones. La tipología de la dinámica migratoria se asocia con prevalencias diferenciadas de problemas de salud y riesgos. Las Casas del migrante constituyen el espacio clave de respuesta en salud.
Enfoque de derechos humanos en la respuesta a salud y migración en Chile: revisión documental
Authors: Iribarne-Wiff Jossette , Chepo Macarena , Ruiz-Azarola Ainhoa
Published: December 2023

Objetivo. Analizar el reconocimiento de derechos a la salud de las personas migrantes en Chile en el marco normativo de salud. Material y métodos. Estudio de metodología mixta secuencial. La fase cualitativa incluyó un análisis documental de 37 instrumentos publicados hasta el año 2021 sobre acciones de salud dirigidas a población migrante. Mediante el análisis de contenido, se identificaron elementos específicos del enfoque de derechos. La fase cuantitativa incluyó el análisis descriptivo de egresos hospitalarios, seguro de salud y problema de salud en los últimos tres meses. Los datos fueron obtenidos de bases de datos de acceso público. Resultados. Chile ha desarrollado progresivamente la implementación del derecho a la salud de las personas migrantes. A su vez, existe una reducción de brechas en los tres indicadores: sin seguro de salud (15.8% 2017 vs. 10.9% 2020), egresos hospitalarios sin seguro de salud (25.5% 2014 vs. 6.6% 2021) y no haber recibido atención médica ante un problema de salud percibido en los últimos tres meses (11.8% 2015 vs. 8.6% 2020). Conclusión. Si bien Chile se muestra como un ejemplo de avance progresivo en la implementación del derecho a la salud de las personas migrantes, persisten elementos pendientes en materia de inclusión efectiva.
An Investigation on the Impact of Submicron-Sized Bubbles on the Fragmentation of Methane Clathrates Using Molecular Dynamics Simulation
Authors: Tesha John Michael , Dlamini Derrick S. , Mapunda Edgar Christian , Kilewela Ashura Katunzi
Published: December 2023

The formation of submicron-sized bubbles is frequently associated with the fragmentation of methane clathrate. A bubble refers to a pocket or a round particle of one substance trapped inside another. In most cases, these spherical pockets are made of gas trapped inside of a liquid. Usually, bubbles can lie underneath the surface of the liquid until the surface tension breaks and the gas escapes back into the atmosphere. Therefore, understanding the fluid dynamics behavior of the clathrate phase shift and enhancing the production efficiency of natural gas requires knowledge of the impact of submicron-sized bubbles on the clathrate fragmentation. In this scenario, molecular dynamics simulation (MDS) models were carried out to investigate the methane clathrate fragmentation rate with and without preexisting submicron-sized bubbles. The findings demonstrate layer-by-layer fragmentation of the methane clathrate cluster in the liquid phase. Furthermore, this mechanism shows temperature and submicron-sized bubble existence independent of simulation settings or conditions. However, because of the stability of the supersaturated methane solution for a long period, methane clathrate fragmentation does not always result in the formation of submicron-sized bubbles. It was observed that between the bubble (submicron-size) of methane and the cluster surface of methane clathrate, there is a steep slope of methane concentration. This results in the liquid phase efficiently decreasing the methane concentration and improving the migration of natural gas in different directions, hence the driving force increases for methane clathrate fragmentation. Our discoveries in this research show that the existence of submicron-sized bubbles near the surface of the methane clathrate can speed up the rate of intrinsic decomposition while decreasing the activation energy of methane clathrate fragmentation. The mass flow rate toward submicron-sized bubbles linearly correlates with the methane clathrate fragmentation rate. The mass flow rate is governed by the size of the submicron-sized bubbles and the spacing between the methane clathrate submicron-sized bubbles. Our results contribute to the in-depth knowledge of the fragmentation technique in the liquid phase for methane clathrates, which is critical in optimizing and designing effective gas clathrate development methods.