bluuebunny/crossref_metadata_2025 huggingface dataset:
A Studying of The Effect of Oxidative Stress Among Patients with Atherosclerosis in Al-Najaf City
Authors: Mahdi Ban , Audah Furqan
Published: August 2023

The current study sheds light on the effect of oxidative stress on the development of atherosclerosis. Thirty-eight males and twenty-two females with atherosclerosis were chosen as the patient group, whose samples were collected from the "Open-Heart Unit in Al-Sadr Teaching Hospital in Najaf City". Thirty healthy people who do not suffer from vascular disease, hypertension or diabetes, with similar ageing of patients, were selected as a control group.
       Total antioxidant capacity, Insulin, cholesterol, hemoglobin and platelets were measured in atherosclerosis patients and the control group. The results show a significant increase in full antioxidant capacity, Insulin, cholesterol, haemoglobin and platelets in patients with atherosclerosis compared with the control group; the results also showed a significant increase in hemoglobin and platelet count in males with atherosclerosis compared with females. There is a positive relation between T-AOC and Insulin in atherosclerosis patients, while there is no relationship between T-AOC and both (Hb & PCV) in atherosclerosis patients.
The Influence of Coaches 'Control Behavior and Mental Toughness on Athletes Engagement
Authors: Peng Wenxuan , Chen Yingqi
Published: August 2023

Coaches 'behavior control and psychological tenacity are all important psychological variables of athletes' burnout. This study examined the influence of coaches 'control behavior and psychological tenacity on athletes' input. Methods: 380 Chinese athletes aged 14 to 26 from 11 sports were surveyed. Results: Coach Control behavior can significantly negatively predict athletes 'input and significantly negatively predict athletes' psychological tenacity. Moreover, athletes' psychological resilience was significantly and positively associated with their input. Conclusion: Coaches' control of behavior will reduce the input level of athletes.
Bacterial Contamination Evaluation in Anterior Chamber Aspirates: Contrasting Small Incision Cataract Surgery (SICS) and Phacoemulsification
Authors: Rahman Mirza Mahbubur , Rahman Farzana , Hossain Mujtahid Mohammad
Published: August 2023

Introduction: The rate of occurrence of endophthalmitis after cataract surgery has been reduced to a greater extent nowadays. Even then endophthalmitis related consequences are devastating. Several sources of infection, including contamination by air, solutions, surgical instruments, intraocular lenses, and wound leakage have been identified. Aim of the Study: The study aimed to evaluate the influence of two methods of surgical technique of cataract surgery in bacterial as well as comparison of contamination by these two techniques. Methods: This prospective observational study was conducted over 60 patients with age-related cataracts in the Department of Ophthalmology and Microbiology in Sir Salimullah Medical College and Mitford Hospital, Dhaka, Bangladesh, from 1st January 2009 to 30 June 2009. Patients were selected purposively based on specific selection criteria. Selected patients underwent detailed ophthalmic and systemic evaluation as well as relevant investigations. Cataract extraction followed by intraocular lens implantation was planned for all patients. The two techniques of cataract surgery such as SICS and Phacoemulsification were assigned to the patients randomly on a 1:1 basis. 1 ml of anterior chamber contents were aspirated through an aseptic technique by 26G needle from each patient pre- operatively, after capsulorhexis (early per-operative), and just before wound closure by stromal hydration (late per- operative). All samples were sent for 10% KOH staining and culture and sensitivity test after proper leveling. Results: Micro-biological examination shows no sample was positive for 10% KOH staining. In the SICS group, out of 30 samples, 3 were found culture positive, which were positive in 4 and 5 samples in early per-operative and late per-operative samples respectively, and in the Phacoemulsification group, it was 2, 3, 5 pre-operative, early per- operative and late per-operative sample respectively. The common organisms isolated were ......
Evaluation of Ilizarov Technique in the Treatment of Open Fractures of Tibia: A Prospective Observational Study
Authors: Ghosh Anjan Lal , Ullah S. K. Ashraf
Published: August 2023

Background: Open fracture of the tibia is a very common occurrence in the orthopedic treatment arena. Ilizarov method is comparatively a newer method for the management of open fractures of the tibia after debridement and open reduction. In Bangladesh, we do have not enough research-oriented data regarding the effectiveness and outcomes of the Ilizarov technic. Aim of the study: The aim of the study was to assess the effectiveness and outcomes of the Ilizarov technique in the treatment of open fractures of the tibia. Methods: This was a prospective cross-sectional study that was conducted in the Department of Orthopedics, Northern International Medical College Hospital, Dhaka, Bangladesh from June 2021 to 21 July 2022. In total 39 patients with tibial open fractures were enrolled in this study as the study subjects. A convenient purposive sampling technic was used in sample selection. Well-known Karlstrom and Olerud criteria were used in assessing the outcomes of this treatment procedure. All the demographic, as well as clinical information, was recorded. All data were processed, analyzed and disseminated by using the MS Office program. Results: The male-female ratio of the participants was 1.6:1. The highest number of patients (49%) were with type II open fracture followed by 36% with type I and 15% with type III open fracture; 64% patients had middle location fractures. In the highest number of patients (79%) road traffic accidents were the mode of injury. According to the Karlstrom and Olerud score, among the total of 39 participants, the functional outcomes were found excellent in 72% (n=27), good in 18% (n=6), fair in 8% (n=2) and poor in 3% (n=1). Conclusion: Ilizarov technique is an effective technic for the management of open fractures of tibia. Prompt healing, less blood loss and patient convenience are the potential features of the Ilizarov technique.
The Relationship Between Obesity and Depression in Ukrida Medical Students
Authors: Hudyono Johannes , Tanjung Judin Purba , Pasaribu Donna Mesina Rosadini , Far Far Inggrid Osya , Chairani Rizka
Published: August 2023

Not just obesity can cause a lot of trouble for physical health such as hypertension, dyslipidaemia, and diabetes, but also can cause problem for mental health such as depression. According to studies this can be an indirect cause that leads them to the depression state. Using analytic research, the aim in this study was to see whether there is a relationship between obesity and depression in medical students of Ukrida batch 2013 or not. Sample taken by purposive sampling technique and data retrieved by using PHQ-9 as a questionnaire to rate the students depression score and measure their body mass index to see their nutritional status. The result from the study were 21,5 % of total respondents with normal BMI and no depression, 28,5% with normal BMI and depression, 25,4% with obese BMI and no depression, and 24,6% obese BMI and depression. This study concluded that there was no significant relationship between obesity and depression in medical student of Ukrida batch 2013 (p value 0.380).
Efektivitas Penerapan Program K3LLP pada Kawasan Pengeboran Sumur Parang II Sepanjang Pandemik Covid-19
Authors: Sukwika Tatan , Riwayando Fredy
Published: August 2023

Pada masa pandemik covid 19, kondisi kesehatan, keselamatan kerja, lindungan lingkungan dan pengamanan (K3LLP) pada kawasan pengeboran sumur Parang II menjadi masalah besar. Kegiatan usaha menjadi terbatas sehingga mengakibatkan penurunan permintaan di pasar minyak global. Penelitian ini bertujuan mengkaji efektivitas manajemen risiko K3LLP pada pengeboran sumur Parang II sepanjang masa pandemik covid 19. Metode penelitian yaitu metode survei menggunakan kuesioner. Sampel sebanyak 67 orang meliputi pekerja tetap, kontrak, dan kontraktor yang terlibat pada proyek pengeboran, baik level pengawas maupun pimpinan lapangan. Analisis data menggunakan analisis regresi. Hasil menunjukkan bahwa manajemen risiko K3LLP berjalan efektif dengan nilai kontribusi yang signifikan. Kesimpulannya implementasi manajemen risiko K3LLP diaplikasikan baik dan efektif. Oleh karena itu, implikasi manajerialnya perlu penyesuaian yang didasarkan pada standar ISO seperti ISO 9001, ISO 14001, ISO 45001 dan ISO 31000.
Evaluasi Efektivitas Kinerja Filter Press Plate and Frame pada Proses Pemanenan Spirulina sp
Authors: Nulhakim Lukman , Astawa I Dewa Ray Rahendra , Marten Dantje
Published: August 2023

Spirulina sp can be used as raw material for making masks and medicines. This research wasconducted to determine the effectiveness of the performance of using a Filter Press (plate and frame) in harvesting Spirulina sp. In this study, Spirulina was cultured in 60 L styrofoam containers with different photoperiods (light/T and dark/G), for 12 hours per day (12T-12G). Parameters observed include dry biomass. For 12 hours per day (12T-12G), Press Filters with 2 and 3 plates were used and pressure of procrsess are 1, 1.5, and 3 Psi. In this study, Spirulina sp can grow well with a concentration of 0.6636 gr mL-1. The filter press plate and frame can be used to harvest Spirulina Sp with the optimum conditions for the Spirulina filtration process by pressing two psi and the number of plates 3, where the highest amounts of filtered Spirulina are 39.653 g with a filtering time of 2 x 103 seconds.
METHODOLOGY FOR CREATING "TRUSTWORTHINESS" ARTIFICIAL INTELLIGENCE IN SYSTEMS BASED ON THE REGULARIZING BAYESIAN APPROACH
Authors:   Doctor of Technical Sciences, Professor, Financial University under the Government of the Russian Federation, Moscow, Russia, Prokopchina Svetlana V.
Published: August 2023

The article proposes a methodology for creating a system for evaluating the quality of artificial intelligence (AI) solutions, in particular, evaluating the trustworthiness of solutions, which determines the degree of confidence in the solutions obtained. The methodology is based on the regularizing Bayesian approach and implemented as a system of metrological support of AI solutions. Within the framework of this methodology and technologies of metrological support, complexes of metrological characteristics are proposed that determine accuracy, reliability (level of errors of the 1st and 2nd kind), reliability, risk, entropy, amount of information for each stage of the algorithms, which ensures traceability and transparency of the solutions obtained. Practical examples of determining metrological complexes for solving applied artificial intelligence systems are given.
STOCK PRICE ANALYSIS USING MARKOV CHAINS
Authors:   Candidate of Physical and Mathematical Sciences, Associate Professor of the Department of Mathematics, Financial University under the Government of Russia, Krivolapov Sergei Ya.
Published: August 2023

The process of changing stock prices is described by a Markov chain with three states ("decline", "constancy", "growth" of the price). The parameters of the chain are estimated based on historical data on stock quotes. The problem of calculating the probabilistic characteristics of a random event associated with the transition from one state to another is solved. For the practical implementation of the methods considered, Python tools are used.
DEVELOPMENT OF A MODEL FOR THE ANALYSIS OF MEDICAL DATA BASED ON THE ARIMA MODEL ON THE EXAMPLE OF PREDICTION OF THE CONSEQUENCES OF COVID-19
Authors:   Candidate of Technical Sciences, Associate Professor of the Department of Informatics, Plekhanov Russian University of Economics, Yarushev Sergei A. , Iksanov Vladislav R. ,   Assistant of the Department of Informatics, Plekhanov Russian University of Economics, Savinova Victoria M. ,   Senior Lecturer of the Department of Informatics, Plekhanov Russian University of Economics, Alibalaeva Leyla I. ,   Candidate of Economic Sciences, Associate Professor of the Department of Informatics, Plekhanov Russian University of Economics, Shpileva Anna A. ,   Assistant of the Department of Entrepreneurship and Logistics, Plekhanov Russian University of Economics
Published: August 2023

The object of this study is the mortality of the population from COVID-19 among the regions of Russia. Many domestic researchers of health problems in their work analyze the increase in mortality from the pandemic in large cities of Russia. This problem has not been sufficiently studied in scientific publications and requires a deeper analysis. To achieve the goal of the work: to study and predict the growth of mortality in Russia from the COVID-19 pandemic, we have chosen empirical and statistical methods for researching information, and also applied a forecasting method based on machine learning. An important indicator of the accuracy of the result will be retroforecasting, which can show the deviation in forecasting calculations. The result of the work was the calculation of indicators for predicting mortality from the COVID-19 pandemic in Russia, the visualization of forecasting calculations.
Science Student Teachers’ Perception of Internet Use on Their Performance in Science at Bagabaga Colleges of Education, Tamale
Authors: - Karim Alhassan Ali
Published: August 2023

The internet has become a very important platform for many activities. It has gained prominence in many sectors including the educational sector. In this modern era, the rapid advancement of internet has revolutionized the way we access and disseminate information. This quantitative descriptive research was conducted to find out the science student teachers’ perception of internet use on their academic performance in science at Bagabaga College of Education in the Northern Region of Ghana. Bagabaga College of Education was purposively selected in the Northern Region for the study. Random sampling technique was used to get participants to participate in the study. In all, 20 science student teachers were selected to form the sample. A survey design was used that sought to get the perceptions of the internet use on the academic performance of the Participants. The instrument used to collect data for the study was the questionnaire which participants responded to. The questionnaire was administered by the researcher himself to seek the opinions of the science student teachers’ on the use of internet at the Colleges of Education. The data collected was presented in simple numbers and percentages for analysis. The results showed that the student teachers’ perceived internet to be very important to their studies. On the advantages, 55% to 60% of the students saw internet as advantageous to their studies. Also, 35% to 40% felt journals were very important. The results also indicated that the students’ use of internet really impacts positively on their performance in science. The study further revealed challenges to the use of internet among students; prominent among which was the lack of skills to search for information. It is therefore, highly recommended that students be given training on how to search for information in the internet
Unmanned Aerial Vehicles: An Overview
Authors: - Ema Ridhi Gowri Shankar
Published: August 2023

Unmanned aerial vehicles, commonly referred to as drones, as the name suggests can be operated without human presence on board. UAV commonalities are growing rapidly in today’s world as their practicality in solving real-world issues is beyond beneficial in terms of efficiency and sustainability. This paper will go into depth about the practical aspects, applications, open challenges, security threats and future scope in drone technology.
Fractional Calculus in Signal Processing: The Use of Fractional Calculus in Signal Processing Applications, Such as Image Denoising, Filtering, and Time Series Analysis
Authors: - Amit Mathur , - Abdulla Akhtar
Published: August 2023

Fractional calculus has transformed signal processing by providing a more flexible representation of complex signals. This article explores its applications in image denoising, filtering, and time series analysis, highlighting its potential to revolutionize signal processing methodologies. Fractional calculus, dealing with derivatives and integrals of non-integer orders, captures long-memory and self-similar properties in real-world signals. Image denoising benefits from fractional derivatives and integrals, preserving essential details while removing noise. Filtering signals with fractional calculus allows for dynamic adaptability to changing signal characteristics. Time series analysis benefits from more accurate modelling, enhancing predictive capabilities. The future scope of fractional calculus in signal processing promises further advancements, making it a valuable tool for researchers and practitioners seeking to analyze complex signals across various domains.
Pathways and Mechanisms for Catalyzing Social Impact through Orchestration: Insights from an Open Social Innovation Project
Authors: - Zhang Shuchen , - Amiya Bhaumik , - Srikrishna Banerjee , - Archita Chakraborty
Published: August 2023

There is a rising interest in the literature on entrepreneurship in understanding how groups of entrepreneurs might work together to solve social problems. In this research, the researchers analyze how an open social innovation initiative brought together government agencies, people, and organized civil society to work together to solve several societal problems. By analyzing data collected on-site and in real-time during the project, they show how social impact orchestration may generate influence along four pathways: leading with the lead user, concentrating on the solution, focusing on the problem, and focusing on the ecosystem. They show how orchestration made it feasible to learn and scale, which in turn raised the potential for impact for all parties involved in each route. The findings of our research add to what is already known about impact entrepreneurship and the practice of organizing innovation for social good.
A Study on Customer Awareness: Green Banking
Authors: - Dipti Gadhavi , - Rani Shah , - Patel Chintan , - Manvar Harshal
Published: August 2023

In this present scenario of globalization, all the sectors of world economy are facing huge challenges to deal with the environmental problems and their related impacts in their day-to-day businesses. The banking sector can play the role of an intermediary between the economic development and fundamental environmental protection. In order to support environmentally sustainable and socially responsible investments, banking of this kind can be called "green banking". It refers to banking activities conducted in a selected area and in a way that contributes to the overall reduction of external carbon emissions and internal carbon footprint. Green finance as part of Green Banking is great contribution to the transition to low-carbon and efficient resource use industry, i.e. green industry and green economy in general. Green banking is part of the group's global initiative stakeholders to save the environment. This research paper aims to find awareness of green banking in Ahmedabad on sample of 100 respondents. The study concludes that people are aware about green banking but still bank should create awareness among people and come up with creative and innovative idea which will be benefited to the society as whole. "Green banking" will contribute to the future improvement of bank asset quality as well as the greening of industries.
Empowering Careers through the Fusion of Vocational and Soft Skills
Authors: - Benna Rao Goli , - Ali Salim Said Ba Oqbah
Published: August 2023

This article investigates into the intricate interplay between vocational skills and soft skills as pivotal determinants of career advancement and the successful realization of Omanisation goals. Focused on specialization students from vocational college in Ibri, Oman, the article addresses the pressing need to equip them with a well-rounded skill set in the face of an increasing influx of foreign workers, primarily from Asian nations. The symbiotic relationship between vocational skills and soft skills is highlighted, emphasizing how vocational proficiency must be complemented by attributes such as effective communication, adaptability, teamwork, critical thinking, and cultural awareness.

Navigating through an array of literature and authoritative reports, including those from the Ministry of Labour and Ministry of Higher Education, the article emphasizes the urgency to empower Omani graduates to stand out amidst stiff competition. It showcases the significance of embedding soft skills within vocational training, making graduates not only vocationally adept but also adept at navigating diverse work environments. The findings of this research advocate for curriculum innovation, hands-on learning, and the inclusion of courses aligned with Oman's economic strengths. In conclusion, it emphasizes the collaborative efforts of educational institutions, government bodies, and the private sector to foster an ecosystem where graduates are not only well-prepared for employment but also integral to Oman's sustainable economic growth and Omanisation aspirations.
Effect of COVID-19 Pandemic on the Mental Health of Healthcare Workers
Authors: - ELSIE LYNN BARONIA-LOCSON
Published: August 2023

Background: The novel coronavirus 2019, or COVID-19, has gripped all corners of the world and has created a crisis that significantly affected people's mental health around the globe, including healthcare workers (HCWs).
Purpose: This study aimed to bring the results to the attention of healthcare systems' policymakers and managers so as to fully recognize the severity of the situation and set the groundwork for appropriate interventions to address the condition of HCWs.
Methods: This systematic review searched PubMed, Google, Google Scholar, and Scopus for literature relevant to mental health conditions among healthcare workers during this pandemic. This review includes the searches from March to October 2020.
Results: The main findings were symptoms of anxiety, depression, stress, psychological trauma, insomnia and sleep problems, burnout and fatigue, and distress. Most studies suggest that social and family support, hygiene measures, and physical activity are safeguards for mental health and are among the recommended protective interventions for promoting mental health.
Limitations: The researcher has reservations about the findings' generalizability as the samples may not represent the population.
Conclusion: This review highlights the existing burden of mental health conditions reported by HCWs during the COVID-19 pandemic. It revealed consistent reports of stress, anxiety, and depressive symptoms resulting from COVID-19.
Implications: Longitudinal data will be helpful through surveys of representative samples of the general population. More relevant and recent data in Asian countries could inform understanding of challenges concerning COVID-19 and the impacts on healthcare workers' mental health and well-being, particularly those in the Philippines.
Attempts to Better Understand Addiction using Etiological Models of Addiction
Authors: - Swati Mudgil , - Chandra Kumari
Published: August 2023

I find it to be incredibly fascinating as a researcher to follow the development of a profession and the specializations within it. The history of addiction counseling, a subfield of the counseling profession, has developed in a manner like that of many other helping professions, including social work, psychiatry, nursing, and medicine. In the past, practitioners had less training and supervision when it came to understanding addiction as a condition that would call for professional assistance. It will substantially advance the body of research and aid counselors in their understanding of the values and requirements of various people. In order to comprehend the etiology of addiction, this article also analyses many causation models, such as moral, psychological, family, disease, biological, sociocultural, and multi-cause models. Addiction counselors are not merely specialists who work with alcoholics or addicts in recovery solely on the basis of their former substance use. Addiction counseling takes a far more comprehensive approach to its clients than what is first apparent. It gives the reader the background necessary to comprehend the phenomenon of addiction much more clearly.
The Role of Innovation Management in Organizational Trust and Work Consciousness of English Language School Teachers in Iran
Authors: - Sepideh Bashang , - Puttanna K
Published: August 2023

The present research study aimed to investigate the role of innovation management in organizational trust and work consciousness of English language school teachers in Iran, Karaj city. This research was a descriptive-correlational study. To estimate the size of the statistical sample, Krejcie & Morgan's (1970) table was used. There were 122 male and 104 female participants in the current study. To collect data, the Innovation Management (IM) (Moghimi & Ramadan, 2011), Organizational Trust (OT) (Shafiee, 2011), and Work Consciousness (WC) (Costa & McCrae, 1992) questionnaires were used. The results showed that there is a statistically significant relationship between innovation management organizational trust and the work consciousness of the teachers. Besides, there was no significant difference between males' and females’ innovation management and organizational trust status in terms of gender while a significant difference was found in terms of females’ work consciousness. However, no significant difference was found between single and married teachers’ innovation management, organizational trust, and work consciousness. Furthermore, there was a significant difference in teachers’ innovation management in terms of their academic degree while there was no significant difference between teachers’ organizational trust and work consciousness. Likewise, no significant difference was found between teachers’ innovation management and organizational trust in terms of their work experience, whereas there was a significant difference between teachers’ work consciousness in terms of their work experiences.
A Review of Spinal Twine Injury and Its Management
Authors: - Sonali Chandra , - Shivani Galhot , - Hanumanthrao C Patil , - Rajesh Kumari Patil
Published: August 2023

There is no universal agreement on the best procedure for treating lower cervical dislocation because anterior reduction and interbody fusion fixation have not been directly compared to posterior reduction and short-segmental pedicle screw fixation. This study compares the long-term effects of severe cervical dislocation with spinal cord injury treated using an anterior versus a posterior method. A total of 149 patients (follow-up rate of 84.1%) could be followed for more than 10 years. 67 patients had posterior reduction and short-segmental pedicle screw fixation, while 92 patients underwent anterior reduction and interbody fusion and fixation. Surgical or post-operative problems as well as the Japanese Orthopaedic Association (JOA) scores, the Neck Disability Index (NDI), the American Spinal Injury Association grading (ASIA), Odom's criteria, cervical kyphosis, and operating parameters were assessed. 10 to 17 years were spent monitoring the patients. At the follow-up, there was no discernible difference between the two groups' primary JOA scores, NDI scores, or ASIA scores. The posterior method was linked to a larger loss of alignment at the last follow-up and by two years (P = 0.012 and P 0.001, respectively).
Trends in Agriculture Trade and the Influence of Global Crises on Export of Agricultural Goods of India
Authors: - Md. Jamir Uddin Ahmed
Published: August 2023

Recently it is experienced that the agricultural trade in India has been tremendously change due to came into scene of global crises. In the year 2021 and 2022 exports recorded $ 50.2 billion and imports recorded $ 32.4 billion. The resulting surplus of $ 17.8 billion was significantly lower than the surplus amount of $ 27.7 in the previous record- breaking export year 2013-2014. Covid 19 pandemic and Ukraine war had a positive influence on the record exports from India. But the greater increase in imports has particularly offset the remarkable expansion in exports. In this context, an attempt has been made to examine the causes of this pattern in Indian export of agricultural produces. The study in this regard is significant because, aside from software services, this is one industry in which India has some comparative advantage. The nation must prioritize a stable trade policy, especially for those goods having highest trade potential.
Utilizing Crushed Waste Glass as a Sustainable Replacement for Fine Aggregate in Concrete
Authors: - Rojina Subba , - Devender Sharma
Published: August 2023

Concrete, a vital material in modern construction, combines strength, durability, and fire resistance. However, the conventional use of river sand in concrete is ecologically concerning due to its scarcity and environmental impact. To address this, waste glass is explored as a sustainable replacement for fine aggregate. This study investigates the effects of crushed waste glass on concrete workability, water absorption, compressive strength, and flexural strength. Different glass replacement levels (0%, 10%, 20%, and 30%) and curing periods were considered. The research aims to optimize glass content, evaluate its impact on concrete properties, and compare its environmental effects with traditional methods. The results indicate that waste glass improves workability and reduces water absorption. Compressive and flexural strengths initially increase with glass content but decrease at higher levels, due to potential alkali-silica reaction. The study concludes that waste glass can be effectively utilized in concrete to enhance sustainability and resource conservation. Further research is recommended to explore specific applications and long-term effects.
APPLICATION OF THE JIGSAW LEARNING MODEL TO THE LEARNING OUTCOMES OF HISTORY OF XI GRADE STUDENTS AT SMA NEGERI 4 LUBUKLINGGAU
Authors: Yeni Asmara, Agus Susilo Yaswan Rilau Nisas,
Published: August 2023

The aim of this study was to find out if the application of the Jigsaw learning model could significantly improve the results of learning history for class XI students at SMA Negeri 4 Lubuklinggau. At this time it is very important for the world of education to continue to improve its ability to teach with the latest learning models so that the teaching and learning process is not boring. The method used in this study is quantitative with a quasi-experimental approach. The population of this study were all of class VII, totaling 265 students and the sample taken in this study was class XI MIA 4, totaling 32 students. Samples were taken by simple random sampling. The conclusion from this study is whether there is a significant increase in the results of studying history in class XI SMA Negeri 4 Lubuklinggau after being given learning using the Jigsaw learning model. This can be seen from the results of the analysis with the t-test obtained t-count> ttable (7.20> 2.567) this means that H0 is rejected Ha is accepted. From the research that has been carried out by researchers, it is clear that the application of the Jigsaw learning model can improve the learning outcomes of class XI students at SMA Negeri 4 Lubuklinggau. These results are in accordance with the research objectives so that learning outcomes continue to increase and become an alternative for teachers in the future to continue to innovate.Keywords: Application, Jigsaw learning model, Learning Outcomes AbstrakPenelitian ini bertujuan untuk mengetahui apakah penerapan model pembelajaran Jigsaw dapat meningkatkan hasil belajar sejarah siswa kelas XI SMA Negeri 4 Lubuklinggau secara signifikan. Pada saat ini sangat penting bagi dunia pendidikan untuk terus meningkatkan kemampuannya dalam mengajar dengan model pembelajaran terbaru agar proses belajar mengajar tidak membosankan. Metode yang digunakan dalam penelitian ini adalah kuantitatif dengan pendekatan eksperimen semu. Populasi penelitian ini adalah seluruh siswa kelas VII yang berjumlah 265 siswa dan sampel yang diambil dalam penelitian ini adalah kelas XI MIA 4 yang berjumlah 32 siswa. Sampel diambil dengan simple random sampling. Kesimpulan dari penelitian ini adalah adakah peningkatan hasil belajar sejarah yang signifikan pada siswa kelas XI SMA Negeri 4 Lubuklinggau setelah diberikan pembelajaran dengan model pembelajaran Jigsaw. Hal ini terlihat dari hasil analisis dengan uji t diperoleh thitung > ttabel (7,20 > 2,567) hal ini berarti H0 ditolak Ha diterima. Dari penelitian yang telah dilakukan peneliti, terlihat bahwa penerapan model pembelajaran Jigsaw dapat meningkatkan hasil belajar siswa kelas XI SMA Negeri 4 Lubuklinggau. Hasil tersebut sesuai dengan tujuan penelitian agar hasil belajar terus meningkat dan menjadi alternatif bagi guru ke depan untuk terus berinovasi.Kata kunci : Penerapan, model pembelajaran Jigsaw, Hasil Belajar
THE ROLE OF HISTORY TEACHERS IN SHAPING THE CHARACTER OF LOVE FOR THE COUNTRY OF CLASS X STUDENTS OF SURULANGUN STATE SENIOR HIGH SCHOOL
Authors: Wulandari Ayu , Supriyanto Supriyanto , Susilo Agus
Published: August 2023

The purpose of this research is to describe the role of the History Teacher in the formation of the character of loving the motherland. In the research method used is qualitative research with a descriptive approach. The subjects in this study were the teachers and students of SMA Negeri Surulangun. The collection of data used is the first observation, interviews, documentation and the last questionnaire. The results of the study show that (1) the role of the history teacher in forming the character of students' love for the homeland is the teacher as a guide, educator, adviser, motivator, mediator and evaluator. (2) the obstacles encountered by the teacher in the process of forming the character of loving the homeland include learning media, lack of enthusiasm for learning.Keywords: The Rolee of the History Teacher, The Characeter off Love for the Motheerland Abstrak Tujuan dari penelitian ini adalah untuk mendeskripsikan peran Guru Sejarah dalam pembentukan karakter cinta tanah air. Dalam penelitian ini metode yang digunakan adalah penelitian kualitatif dengan pendekatan deskriptif. Subjek dalam penelitian ini adalah guru dan siswa SMA Negeri Surulangun. Pengumpulan data yang digunakan adalah yang pertama observasi, wawancara, dokumentasi dan yang terakhir angket. Hasil penelitian menunjukkan bahwa (1) peran guru sejarah dalam membentuk karakter cinta tanah air siswa adalah guru sebagai pembimbing, pendidik, penasehat, motivator, mediator dan evaluator. (2) kendala yang dihadapi guru dalam proses pembentukan karakter cinta tanah air antara lain media pembelajaran, kurangnya semangat belajar.Kata kunci: Peran Guru Sejarah, Karakter Cinta Tanah Air
ANALYSIS OF THE REASONING SKILLS OF JUNIOR HIGH SCHOOL STUDENTS IN SOLVING GEOMETRY PROBLEMS IN BUILDING SPACE
Authors: Nilsashi Mehrbakhsh , Ansyari Rizli
Published: August 2023

This research aims to find out how much the level of reasoning ability of female students in solving problems on the material of geometry build space, because reasoning is one of the standards that are needed in learning mathematics and become one of the objectives of learning mathematics and is needed for problem solving in everyday life. This type of research is a descriptive qualitative approach. The sample of this research is 30 students of class VIII A SMPs METHODIST 1 RANTAUPRAPAT with the research method is a written test. From this study shows that the level of reasoning ability of high students is only 27%, while students who have a moderate level of reasoning ability by 53% and students who have a low level of reasoning ability by 20%.
Tecnología ósea y cadenas operativas: estrategias de producción de cazadores marinos de Fuego-Patagonia durante el Holoceno.
Authors: San Román Manuel Julio
Published: August 2023

Reseña del libro La industria ósea de los cazadores-recolectores: el caso de los nómadas marinos de Patagonia y Tierra del Fuego, de Marianne Christensen,Colección Poblamiento Humano de Fuego-Patagonia, Ediciones Universidad de Magallanes, 308 pp. ISBN: 9789567189700

Reseña de Manuel San Román Bontes. Centro de Estudios del Hombre Austral, Instituto de la Patagonia-Universidad de Magallanes. Avenida Bulnes 01890,casilla 113-D, Punta Arenas, Chile. E-mail: manuel.sanroman@umag.cl e Ismael Martínez Rivera. Centro de Estudios del Hombre Austral, Instituto de la Patagonia-Universidad de Magallanes. Avenida Irarrazaval 2061d.408, Santiago, Chile.
Digitalisasi Rantai Pasok Sampah di Indonesia
Authors: Siregar Ivan Michael
Published: August 2023

Pengelolaan sampah hingga saat ini masih menjadi permasalahan yang serius di kota-kota besar di Indonesia. Pertambahan jumlah penduduk berdampak peda bertambahnya volume sampah sedangkan mekanisma pengelolaan sampah tidak banyak mengalami perbaikan, menambah panjang rantai masalahnya. Meskipun telah banyak upaya dilakukan oleh pemerintah dan swasta, namun hasilnya belum memberikan perubahan signifikan, karena tidak mengintegrasikan seluruh stake holder pata rantai proses pengelolaan sampah. Khusus untuk sampah daur ulang, pemulung menjadi pemain kunci yang memiliki kontribusi terbesar dalam memilah dan mengumpulkan sampah yang bisa didaur ulang dan dimanfaatkan kembali. Dengan metoda analisis dapat diketahui bahwa jumlah pemulung yang sangat banyak dan tersebar di seluruh kota besar menjadi faktor penentu keberhasilan ketika ada platform digital yang hadir dan mampu mengintegrasikan pengelolaan sampah mulai dari tempat penghasil sampah, lapak, hingga pabrik daur ulang untuk mengefisiensikan proses transportasi sampah daur ulang. Platform digital menjadi salah satu platform digital yang mengintegrasikan dan memberdayakan peran seluruh pemangku kepentingan dalam mengefisienkan proses transportasi sampah dan meningkatkan valuasi sampah di Indonesia, sekaligus meningkatkan kesejahteraan pemulung.
Pengembangan Media Pembelajaran Berbasis QR Code Card Pada Materi Pesawat Sederhana Kelas VIII Di SMP Negeri 14 Palangka Raya
Authors: Laula Vika , Hutahaean Saulim DT , Nawir Muhammad
Published: August 2023

Media pembelajaran berbasis QR Code Card adalah inovasi media yang memanfaatkan teknologi era 4.0 dengan bentuk kartu materi dan kartu evaluasi. Penelitian ini bertujuan untuk mengetahui hasil validasi media QR Code Card oleh validator, nilai hasil belajar peserta didik, dan respon peserta didik terhadap media QR Code Card . Pengembangan media QR Code Card memiliki manfaat sebagai inovasi baru dan menjadi penunjang media guru dalam kegiatan belajar mengajar. Jenis Penelitian yang digunakan adalah penelitian pengembangan dengan metode Research & Design   model 4D yang terdiri atas 4 tahap yaitu Define (tahap Pendefinisian), D esign(tahap Perancangan), Mengembangkan (tahap Pengembangan), dan Menyebarluaskan (tahap Penyebaran). Uji produk media QR Code Card dilakukan di SMP Negeri 14 Palangka Raya pada Kelas VIII Semester Ganjil Tahun Ajaran 2022/2023. Teknik pengumpulan data yang digunakan adalah penilaian validasi media oleh validator, tes hasil belajar, dan pemberian respon kuisioner peserta didik. Hasil penelitian terhadap penilaian validator menunjukan presentase rata-rata nilai 83,95% dengan kriteria sangat layak atau dengan kategori sangat baik sehingga media QR Code Carddinyatakan sah. Hasil analisis terhadap hasil belajar peserta didik diperoleh hasil dari 22 peserta didik, 17 peserta didik menyelesaikan dan 5 peserta didik tidak menyelesaikan dan menunjukkan bahwa presentasi ketuntasan klasikal 77,27% dengan penyelesaian tuntas serta presentasi TPK 65,4% yang tuntas. Hasil analisis respon peserta didik terhadap QR Code Card diperoleh rata-rata 83,67% dengan kategori positif atau sangat baik sehingga media QR Code Card dapat dinyatakan efektif digunakan dalam kegiatan pembelajaran.
ANALISIS MEKANIKA GERAK FASE MENDARAT TEKNIK OPEN SMASH BOLA VOLI
Authors: Putra Martinez Edison , Fauzi Fauzi , Kurniawan Faidillah , Ningrum Novi Resmi
Published: August 2023

Teknik Open Smash dalam Bola voli adalah jenis pukulan dasar dan sederhana yang umumnya bola terbang tinggi di udara, meskipun dapat menjadi pukulan yang sangat mematikan. Tujuan dari penelitian ini adalah untuk mengeksplorasi mekanika fase pendaratan pada teknik Open Smash. Penelitian ini menggunakan metode pengamatan dan pengukuran dengan menggunakan perangkat lunak Kinovea untuk mengukur fase pendaratan mahasiswa Kepelatihan Bola voli Universitas Tanjungpura. Sampel terdiri dari 7 mahasiswa Kepelatihan Bola voli Universitas Tanjungpura, dipilih dengan metode purposive sampling, yang memenuhi kriteria sebagai berikut: (1) anggota tim inti Kepelatihan Bola voli Putra di Universitas Tanjungpura, dan (2) pernah berpartisipasi dalam kejuaraan sesuai dengan peraturan Persatuan Bola voli Seluruh Indonesia PBVSI. Informasi yang diperoleh dari masing-masing sampel akan didokumentasikan dalam sebuah tabel untuk analisis lebih lanjut. Ini adalah survei deskriptif kuantitatif. Teknik analisis data yang digunakan adalah statistik deskriptif. Hasil penelitian menunjukkan bahwa 5 dari 7 mahasiswa (B, DW, F, H, dan R) mendarat pada satu kaki, sedangkan 2 mahasiswa (U dan D) mendarat pada kedua kaki. Pendaratan pada satu kaki dapat menyebabkan cedera pada pergelangan kaki dan lutut, yang dapat mengakibatkan konsekuensi yang fatal karena rendahnya fleksi lutut, dan momen adduksi pinggul, sudut abduksi lutut, peningkatan ekstensi lutut, dan momen varus yang lebih besar, sehingga menghasilkan beban dua kali lipat pada tubuh. Oleh karena itu, mahasiswa yang mendarat pada satu kaki lebih rentan terhadap cedera dibandingkan dengan mereka yang mendarat pada kedua kaki.
Alcohol zero: the end, the beginning of the end, or just the end of the beginning?
Authors: Ostojic Miodrag , Djajic Vlado , Kovacevic-Preradovic Tamara , Vulic Dusko
Published: August 2023

Alcohol drinks, especially wine, have been described since 6,000 B.C. For many years in modern medicine,
wine in moderation has been considered healthy for cardiovascular prevention, i.e., recommended by
nutrition committees. Some regional guidelines still recommend one to two standard drinks per day. By the
very recent (January 2023), World Health Organization and Canadian Guidance on alcohol emphasize that
any alcoholic drink is hazardous to the health and the safe amount is zero. The risk starts with every single
drop. It was also nicely summarized in the manuscript “Alcohol-dose question and the weakest link in a
chemical interplay” (Explor Cardiol. 2023;1:15–25. doi: 10.37349/ec.2023.00003) especially from the
standpoint of a researcher in the cardiovascular arena. The newest recommendations are based on
observational studies and their meta-analysis, therefore establishing associations, pointing out that alcohol
may somewhat prevent cardiovascular diseases and diabetes type 2, but with a significant increase in
non-cardiovascular morbidity and mortality, especially cancers. Previous recommendations, therefore, may
be obsolete as they were based on studies where abstainers from alcoholic beverages had inherent higher
risks. The current controversy with conflicting guidelines for alcoholic beverage consumption in the era of
precision medicine may stimulate more fundamental investigations up to genetic ones and find the
cause-effect relations. In the era of precision medicine, it may come closer to discovering the causes of
cancers and many other diseases, enabling predictions of reactions to alcoholic beverages by each person,
not just in the population.
Vitamin D, ageing, and the immune system
Authors: Bueno Valquiria
Published: August 2023

Changes occurring in the immune system along the ageing process increase the risk of infection, susceptibility to tumor development, and autoimmunity. Interventions such as physical exercise, supplements, and probiotics have been proposed in order to circumvent these conditions. Vitamin D supplementation could contribute to the immune system homeostasis in older adults since a large proportion of this population has low levels of circulating vitamin D. Additionally, observational studies have shown the association between vitamin D status and infections, chronic diseases such as cancer, diabetes, and cardiovascular disease. Recently it was observed that old patients with COVID-19 and vitamin D deficiency had enhanced severity of lung damage, longer stay at the hospital, and increased risk of death, suggesting that vitamin D plays an important role in the patient outcome from COVID-19. A high dose of vitamin D supplementation improved clinical recovery in a case-series report but in another study, no evident link between levels of vitamin D and risk of COVID-19 infection was found. Results also remain debatable for vitamin D supplements and improvement of immune response after vaccination, tuberculosis, pneumonia, and sepsis. It has been hypothesized that vitamin D could modulate the immune system and thus provide both efficacies in the immune response to pathogens/vaccinations and reduction of the inflammatory phenotype. This review will discuss vitamin D and homeostasis of the immune system; the literature-based clinical data on vitamin D and infections; and the possible link between vitamin D and immune response after vaccination.
The brain activities of individuals with or without motivation to change: a preliminary study among cigarette smokers
Authors: Kalayasiri Rasmon , Srisuklorm Sakol , Chatdon Attapong , Sungkarat Witaya
Published: August 2023

Aim: Cigarette smoking is an addictive behavior that requires high motivation to change, a phenotype related to the functional activity of the brain. The study aims to examine motivation to change among cigarette smokers and to study the association between functional brain activity and motivation to change smoking behaviors. Methods: Motivation to change smoking behaviors of 107 current smokers receiving services in a university hospital was obtained using the Stages of Change Readiness and Treatment Eagerness Scale (SOCRATES). Brain activities related to motivation to change were also explored in a subgroup using functional magnetic resonance imaging (fMRI). Results: The results showed that most of the current smokers (n = 68, 63.6%) were low motivated to change despite receiving health-related services. Brain activities in the left of the temporal, frontal gyrus, and superior medial gyrus of smokers with motivation were greater activated than those without. In contrast, the brain activities in the left precentral gyrus and bilateral paracentral lobules of smokers without motivation were greater activated. Conclusions: These preliminary results show the differences in brain activities between smokers with and without motivation to change and warrant further research to see if motivated smokers can quit smoking using a series of strategies based on their functional activities of the brain.