bluuebunny/crossref_metadata_2025 huggingface dataset:
Legal Protection for Workers who Have Harmed Employers
Authors: Amelia Sonia , Permatadani Ega , Rosida Ida Ayu , Akmaliya Rifda Ayu , Irawan Anang Dony
Published: May 2023

The purpose of this research is to find out how legal protection for workers has harmed employers so that workers have been laid off. The type of research used in this study is normative research using the nature of the law approach as well as the theoretical point of view from scientific books and journals that function to provide solutions to existing legal problems. The results show that even though Article 164 paragraph (3) of Law Number 13 of 2003 must provide severance pay, award money, and services during the employee's working period and provide compensation. When workers are proven to be unproductive at work or have problems with the detriment of the employer, the employer can take action to terminate the employment relationship with the worker. From there, the Law does not prohibit companies from taking efficiency measures, but these efficiency actions are no longer valid if there are procedures or reasons that are not in accordance with the applicable regulatory requirements. With the existence of Law No. 13 of 2003 concerning Manpower, I hope that it can implement various national instruments that have been ratified, for example labor rights. This ambiguity makes the Indonesian people have to have strong policies and regulations on labor rights regulations, so that they can restore the wheels of Indonesia's slumping economy.
Keywords: Labor; Legal Protection; Termination of Employment.
 
Abstrak
Tujuan penelitian yakni untuk mengetahui bagaimana perlindungan hukum bagi para pekerja yang telah merugikan pengusaha sehingga sampai para pekerja di PHK. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian normatif dengan memakai sifat pendekatan Undang-Undang serta sudut pandang teoritis dari buku dan jurnal ilmiah yang berfungsi untuk memberikan solusi terhadap permasalahan hukum yang ada. Hasil penelitian menunjukan bahwa Saat pekerja terbukti tidak produktif dalam bekerja atau memiliki masalah sampai merugikan pengusaha disitu pengusaha bisa mengambil tindakan untuk memutuskan hubungan kerja dengan pekerja. Dari situ Undang-Undang tidak melarang perusahaan untuk melakukan tindakan efisiensi namun tindakan efiensi tersebut menjadi tidak berlaku lagi jika ada prosedur atau alasan yang tidak sesuai dengan syarat peraturan yang berlaku. Adanya Undang-Undang Nomor 13 Tahun 2003 Tentang Ketenagakerjaan saya harap bisa melaksanakan berbagai instrument nasional yang telah diratifikasi contohnya hak hak tenaga kerja. Ketidakjelasan tersebut membuat bangsa Indonesia harus memiliki kebijakan dan peraturan yang kuat atas peraturan hak para tenaga kerja, sehingga bisa mengembalikan roda perekonomian Indonesia yang terpuruk ini.
Kata Kunci: Tenaga Kerja; Perlindungan Hukum; Pemutusan Hubungan Kerja.
Analysis of Teachers' and Experts' Perceptions of the High School Credit System in Small Schools: Focusing on the Case of G Office of Education
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Cho Yong
Published: May 2023

Objectives This study attempted to explore the effective operation plan of the high school credit system in small schools through in-depth interviews with teachers and experts on the difficulty of operating the high school credit system in small schools by G Office of Education following the introduction of the high school credit system.
Methods To this end, 1st to 9th in-depth interviews (May 2022 to September 2022) were conducted with teachers in charge of the high school credit system in small schools and professional education staff in charge (regional offices and provincial offices of education). In the first interview, the content of the interview between the person in charge of the high school credit system in a small school and the participants in the inter-school joint curriculum was intensively discussed. In the ninth interview, cases of joint education courses between local unit schools were discussed, and the interview materials were recorded and transcribed.
Results G Through interview analysis on small school high school credit system operation cases, (1) course application and opening, (2) teacher supply and demand, (3) work increase, (4) academic schedule adjustment and travel distance between schools, (5) Opinions were identified in six aspects, including the use of school facilities and local resources, the formation of consensus, and the shift in perception. In addition, implications were derived by analyzing the current status of high school credit system operation in small schools, cases of joint curriculum operation between schools, demand for vitalization of joint curriculum between small schools, and demand operation model for vitalization of joint curriculum between small schools.
Conclusions First, regional consultative bodies should be activated so that communication between teachers centered on the Office of Education becomes routine beyond exchanges at the level of current subject research associations in the region. Second, it is urgent to establish a human resource pool using external instructors and improve the stable supply of teachers. Third, the school work organization for the operation of the high school credit system must be reformed. Fourth, the principle of adequacy of the teacher's workload should be applied.
A Study on the factors affecting the general mental health of middle-aged men who experienced unemployment
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Cho Sung-Sun , Jeong So-Hee
Published: May 2023

Objectives This study aims to examine at the factors that affect the mental health of middle-aged men who have experienced unemployment.
Methods Data from a total of 284 middle-aged men over the age of 40 and under the age of 60 residing in Daegu and Gyeongsangbukdo who have been unemployed for less than one year were used for the final study. To figure out the factors affecting mental health, it was studied by dividing them into demographic, unemployment-related, job seeking activities, and family support as independent variables, and hierarchical regression analysis was used as the main statistical method.
Results Factors affecting the mental health of middle-aged men who experienced unemployment were statistically significant in terms of demographic and socialogical factors, average monthly household income, unemployment in terms of unemployment-related factors, and employment-related certificates in terms of job seeking activities. in addition, family support were found to have a positive effect on mental health.
Conclusions Based on the results of the study, for the mental health of middle-aged men who have experienced unemployment, strengthening information collection and education programs for obtaining employment-related, additional support policies are needed to reduce economic difficulties other than unemployment benefits in unemployment situations. In addition it was proposed to develop and expand marital counseling and family ties programs to strengthen family support and various programs to improve the physical health of the unemployed.
Korean Secondary Teachers’ Perceptions and Participation Regarding Teacher Professional development revealed in Teacher Questionnaire in PISA 2018: Focusing on comparative analysis with the United States, the United Kingdom, and Taiwan
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Shinyoung , Jo Hongjoo
Published: May 2023

Objectives This study aims to analyze and compare Korean secondary teachers' perceptions and participation of teacher professional development with those of the United States, the United Kingdom, and Taiwan.
Methods We used the following variables: 1) teacher qualifications programs; 2) the awareness of the need for teacher professional development activities; 3) teacher efficacy; and 4) the factors hindering teacher education activities. The responses to the PISA 2018 teacher questionnaire from Korea, the United States, the United Kingdom, and Taiwan were analyzed in line with these variables.
Results Regarding the teacher qualification programs, the response average in all countries was high in the order of ‘teaching-learning, class management, and life guidance’, and he response average of the subjects related to traditional PCK component were higher than the other subjects. The average response of the need for teacher professional development activities were higher and teacher efficacy were lower in Korea and Taiwan than in the United States and the United Kingdom. Regarding the participation in teacher professional development activities, the response average of sub-variables related to activities in cooperation with fellow teachers was the highest in all countries. Regarding the factors hindering teacher education activities, Korea showed the highest response average among the analysis target countries.
Conclusions Considering the perceptions of the need for teacher professional development activities and teacher efficacy, it is necessary to supplement the professional development subject of the teacher qualification program. In order to support teachers' participation in teacher professional development activities, it is important to activate professional learning communities(PLC) and to make an overall educational environment suitable for the digital education environment with the help of the office of education or school.
The Development and Validation of the Adult Counseling Rapport Scale
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim yooho , Kim jihyeon
Published: May 2023

Objectives The purpose of this study is to develop a reliable and valid counseling rapport scale for clients.
Methods This study developed a total of 95 items in an open-ended survey based on a literature review to gain preliminary items for a counseling rapport scale. The items were tested for content validity by experts and face validity by clients who finished the first sessions, which reduced the items to 50 preliminary ones. An exploratory factor analysis was conducted with 250 clients that finished the first session followed by a confirmatory factor analysis with 250 clients to test the developed scale for validation. The scale was also tested for criterion and convergent validity.
Results First, the exploratory factor analysis results identified four factors that comprised of 21 items, including positive first impressions, favorable feelings, experiences of ease and comfort, and the counselor's honest attitude. Secondly, according to the confirmatory factor analysis results, the fitness index of the scale was good; in addition, it confirmed that the four factors from the exploratory factor analysis results were valid. Thirdly, the scale was good internal consistency, criterion validity, and convergent validity. Finally, it also had good re-test reliability.
Conclusions Using an objective procedure this study provided a reliable and valid scale to measure counseling rapport. The scale developed in the study is significant in that it laid a foundation to diagnose and improve the level of rapport between the counselor and his or her clients at the counseling scene. In short, the study offers discussions about ways to form and promote healthy rapport in the process of developing and validating a counseling rapport scale, hopefully contributing to the better competence and higher quality of counselors.
The Relationship between Respect for Teacher Rights of Childcare Directors, Childcare Teachers' Burnout, and Desire for Self-development
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Yu Jung Hee , Lee You me , Kim Sun Jung
Published: May 2023

Objectives The purpose of this study is to verify the effect of the daycare center director's respect for teachers' rights as an institutional factor that alleviates the burnout of childcare teachers at daycare centers and promotes teachers' desire for self-development.
Methods An electronic survey was conducted on 345 childcare teachers working at daycare centers in Seoul and Gyeonggi-do. The collected data were subjected to frequency analysis, descriptive statistical analysis, correlation analysis, and hierarchical regression analysis to verify mediating effects using the SPSS 25.0 program.
Results As a result of the study, first, looking at the level of respect for teacher rights of daycare center directors by sub-factors, it was found in the order of operation autonomy, operation participation right, status guarantee right, and working environment right. Second, the respect for teacher rights of the head of the daycare center was positively correlated with the self-development needs of childcare teachers, and negatively correlated with the exhaustion of childcare teachers. Third, there was a significant mediating effect of the exhaustion of childcare teachers in the effect of the director's respect for teacher rights on the self-development needs of childcare teachers. Therefore, it can be said that the respect of teacher rights of the head of the daycare center directly affects the self-development needs of childcare teachers, and indirectly affects the self-development needs by reducing the exhaustion of childcare teachers.
Conclusions This study is meaningful in that it objectively proved the value of respecting teacher rights of daycare center directors as a significant variable predicting the reduction of exhaustion of childcare teachers and the promotion of self-development needs. Based on the results of this study, we expect the daycare center director's efforts to reconsider the perception of respect for teacher rights, as well as financial support to support it.
A Study on the relationship between talent preference, informal learning, job satisfaction, and organizational commitment of Corporate Workers: Utilizing multi-group structural equation model
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Jo Hyeon-ju
Published: May 2023

Objectives In this study, the structural relationship between corporate workers' talent preferences, informal learning, job satisfaction, and organizational commitment was examined, and the structural relationship of multiple groups by current job performance period, position, and generation was analyzed and compared.
Methods The most recently conducted survey data among the Human Capital Enterprise Pane data for 2021 was used. Among all respondents, a total of 1,294 data were analyzed by limiting corporate workers who had participated in informal learning to study subjects. Structural equation model analysis was conducted to analyze the structural relationship between variables. In addition, the study subjects were classified according to the current work period, position, and generation to verify differences by group, and the significance of routes within and between groups was confirmed through multi-group analysis.
Results First, as a result of confirming the structural relationship between talent preferences, informal learning, job satisfaction, and organizational commitment of corporate workers, the model was suitable, and talent preferences influenced organizational commitment through informal learning and job satisfaction. Second, the difference in average between groups by period of performance, position, and generation of the current job was different depending on the variables, and third, as a result of multi-group analysis by period of performance, position, and generation of the current job, the difference between groups was confirmed. Fourth, it was confirmed that the effect of job satisfaction on organizational commitment differs between groups by generation.
Conclusions Based on the research results, a support plan suitable for the characteristics of corporate workers was suggested so that corporate workers can increase organizational commitment, and implications for detailed organizational support measures through difference analysis by group were presented.
Developing Software to Track Endangered Marine Species
Authors: I Rathnayake R M , Silva D. I. De , Godapitiya M. V. N.
Published: May 2023

In this project “Life below water,” going to develop a web
application to track endangered species living around the Sri Lankan
Ocean. Hope to collect information on endangered marine species with the
help of fishermen fishing in the deep sea. After collecting the details,
we hope to create a web application to track these kinds of species
after successfully developing our web application, hope to give it to
the required authorities like the Sri Lanka tourism board/fishing
cooperation and finally to the other countries who are interested in
this.
The Influence of Leadership Style and Motivation on Employee Performance in Drinking Water Distributor Company
Authors: Abimayu I Gusti Ngurah Bagus Dion Susila , Netra I Gusti Salit Ketut , Suwandana I Gusti Made
Published: May 2023

Employee performance is an effort to systematically and continuously manage employees' ability to perform in a company. Therefore, employees can meet the desired level of performance in a company by giving their best to achieve company goals. The success of an organization is influenced by employee performance. This is because every company seeks to improve employee performance in order to achieve organizational goals that have been set. Performance can be accepted as a result of a process or work, this is because all employees are required to have the ability, that is, the ability to carry out the duties charged or entrusted to him. Each task or job has an activity that processes inputs and converts them into value-added outputs as products or deliverables. The purpose of this research is to analyze the effect of leadership styles and motivation on the performance of PT. Sidoraya Star. The number of samples used was 50 employees with a proportional random sampling method. Data collection was carried out using an interview approach, where the research instrument used was a questionnaire. The collected data were then analyzed using multiple linear regression analysis techniques. The results of the study indicated that leadership style had a significant positive effect on employee performance. Motivation has a positive effect on the performance of employees. The implication of this research is that the better the leadership style of company leaders, the employee's performance will increase, and the higher the employee's work motivation, the employee's performance will increase.
Implementing Analytical Hierarchy Process (AHP) for Oil Production Scenario from TMB & KRG Field Development: Case Study of PT Pertamina Hulu Rokan Zone 4
Authors: Affandi Zulfikar D. , Novani Santi
Published: May 2023

Pertamina Hulu Rokan (PHR) carries out the duties of Pertamina's Upstream Subholding to manage the business and operations of upstream oil and gas business activities in the Regional 1 – Sumatra region. Zone 4 is one of the working areas that contributes greatly to PHR oil production. Zone 4 manages oil and gas fields in the Southern Sumatra region which has been producing for more than 40 years and has experienced a decline in production from year to year due to the decline in performance of the main oil and gas structure. The achievement of oil production is currently only 95% of the target set by SKK Migas. The Subsurface Department conducts studies on structures that have the potential to increase oil production in Zone 4, one of which is the Teluk Merah complex consisting of the Teluk Merah Baru structure (TMB) and the Karanganyer structure (KRG). The latest analysis gives results, oil reserves of 9.41 MMBO will be generated through the development scenario of 21 Oil Production Wells (18 Infill Wells + 2 Step out Wells + 1 reactivation well). What must be solved is the problem of how to handle the oil production of the two structures. A VFT (Value Focused Thinking) approach combined with an Analytic Hierarchy Process (AHP) is used to address the problem. VFT is used to generate selection process criteria and to narrow down alternative oil production scenario solutions from TMB & KRG. AHP is used to prioritize alternative scenarios best of the three proposed alternatives. Four experts conducted FGD (Focused Group Discussion) to assess each scenario by considering these criteria. Generated scenarios to build new production facilities in the TMB & KRG structure area as the best scenario with the preference result is 58%. The alternative selection process considers costs (Project Cost & Operational Cost) and benefits (Oil Gain, Operability, and Time to Implement). The selection of this scenario could increase Zone 4 oil production by 9.1 MMBO.
Influencing Factors Enhancement Innovation Performance of Rural Tourism in Indonesia
Authors: Anggraini Ratih , Siagian Yolanda Masnita , Yusran Husna Leila
Published: May 2023

Rural tourism starts becoming transition into activity tourism in Indonesia. Various types of innovative goods origin from nature nor created through the hands public become end spear for tour rural to attract local tourists as well as international for come to visit. Manager village tours must start to arrange several strategizes to increase innovation performance from each village tourism in Indonesia. The objective of this study is to know possible factors that increase performance innovation of rural tourism in Indonesia, so it is capable give great attraction for tourists who come to Indonesia. This study was done through village travel in Indonesia by distributing 200 questionnaires involving whole provinces in Indonesia. Data analysis was performed using SEM-PLS. Research results show that innovation capability is one of the supporting factors happening to enhance the performance of village innovation tourism in Indonesia.
Storage Temperature Effects on the Quality of Chicken Breast and Beef Sirloin
Authors: Dawson Paul , Richardson Jillian
Published: May 2023

The 7-day storage effects on the quality of chicken breast meat and sirloin beef were evaluated at -2°C, -5°C and -18°C. Drip loss increased, and a sensory score showed lower quality as storage time increased. Storage at -2°C resulted in less drip loss and superior sensory scores for both chicken and sirloin beef compared to meat stored at -5°C and -18°C. The -2°C stored beef also retained redness better than beef stored at the two lower temperatures. Cooking loss for meat cooked in a traditional oven, simmered, or cooked in a convection oven was significantly lower for chicken and beef previously stored at -2°C compared to the meat stored at 5°C or -18°C. The total aerobic bacteria growth did not exceed 1 log/g for beef or 2 log/g for chicken during the 7-day storage period when held at any of the storage temperatures. Thus, short term storage at -2°C was superior to lower frozen temperatures to retain quality without risk of microbiological spoilage.
Early Brood Development of Carp Fishes Utilizing Greenhouse Technology in Winter Seasons
Authors: Mondal Md. Anwar Hossain , Sikdar Md. Mehedi Hasan , Menon Md. Rased Khan , Saha Newton , Roy Prosun
Published: May 2023

Carp aquaculture is very popular in both seasonal and permanent ponds. Carp seeds are available for stocking in culture in late May and the ideal water temperature for carp gonad development is 28°C–32°C. The aim of this study was to develop the species’ broods in winter season by raising water temperature, utilizing the greenhouse concept. Two identical ponds, T1 (Greenhouse Pond, GHP) and T2 (Non-greenhouse pond, NGHP) each with three replications were used. Transparent polyethylene-sheet to a bamboo frame covered the T1, whereas no covering for T2. On December 1, 2020, 20 broods/pond stocked equally in the two ponds and reared until February 28, 2021. The mean water temperature of T1 was 28.67±0.49, 28.67±0.78, and 28.83±0.39°C in December, January, and February, respectively compared with T2 found to be 18.25±0.62, 18.58±0.52, and 18.92±0.51°C in December, January, and February, respectively. The average water temperature was 28.75°C and 18.58°C in T1 and T2, respectively. The statistical t-test revealed that the temperature in T1 notably increased in the winter than T2. About 90% of the broods matured within February in T1 while only 15% in T2. The growth of fish gonad was benefited from the usage of greenhouse technology in this study.
REALISTIC MATHEMATICS EDUCATION ON MATHEMATICS LEARNING OUTCOMES IN FRACTIONS MATERIALS OF CLASS III STUDENTS
Authors: Febrilia Yeyen , Murti Rahayu Condro , . Jarmi , Mardati Asih , Saputra Julianto
Published: May 2023

Indonesia student’s understanding of Mathematics is very low. This study aims to determine the positive effect of the Realistic Mathematical Education learning approach on the learning outcomes of grade III fractions at SD Negeri 2 Riau Silip. This research method is pre-experimental with one group pretest-posttest design. Population Data collection techniques use an instrument with a total of 5 questions, both pretest and posttest. Data were analyzed with descriptive statistics and inferential analysis with the help of the SPSS 23 program on prerequisite tests and hypothesis tests. The results of the study stated that the results of the descriptive analysis showed an increase in the average score of students' learning outcomes was 40.72 to 72.55. In addition, the results of the inferential analysis showed a significance value of 0.001 <0.05 so H0 was rejected and Ha was accepted. This states that RME has a positive influence on the learning outcomes of class III students at SD Negeri 2 Riau Silip.
ELICITING ACTIVITIES MODEL ON STUDENTS' MATHEMATICAL LITERACY ABILITY
Authors: Sholihah Ummu , Susanti Vera Dewi
Published: May 2023

The low level of mathematical literacy in Indonesia is caused by the selection of an inappropriate learning model. The purpose of this study is to review various references related to the eliciting activities model and mathematical literacy. The type of research method used is Systematic Literature Review (SLR). Data collection used library research. A literature study was obtained by searching the sites scopus.com, scimagojr.com, and Google Scholar and grouping the data using publish or perish. From the data obtained, 5 articles were selected from international proceedings and articles from reputable journals. Articles will be reviewed and analyzed with supporting references. The results of this study are known that improving students' mathematical literacy skills depends on the learning model provided and how educators can choose an appropriate learning model and apply the learning model properly. The eliciting activities model can also improve mathematical literacy by modifying learning models with various approaches. In addition, teachers also need to pay attention to each step in the eliciting activities model so that learning objectives can be achieved.Rendahnya literasi matematika di Indonesia diakibatkan pemilihan model pembelajaran yang kurang tepat. Tujuan penelitian ini adalah mengulas berbagai referensi terkait model eliciting activities dan literasi matematika. Jenis metode penelitian yang digunakan yaitu Systematic Literature Review (SLR). Pengumpulan data menggunakan studi pustaka.. Studi pustaka diperoleh dengan  melakukan search proccess  situs scopus.com, scimagojr.com dan google scholar dan  pengempokkan data tersebut menggunakan publish or perish. Data yang sudah diperoleh dipilih 5 artikel dari prosiding internasional dan artikel dari jurnal bereputasi. Artikel akan diulas dan dianalis dengan diperkuat referensi pendukung. Hasil penelitian ini diketahu bahwa peningkatan   kemampuan   literasi   matematika   siswa bergantung dengan  model  pembelajaran  yang  di  berikan dan bagaimana pendidik dapat memilih model pembelajaran yang sesuai dan menerapkan model pembelajaran tersebut dengan baik. Model eliciting activities juga dapat meningkatkan literasi matematika dengan memodifikasi model pembelajaran dengan berbagai pendekatan. Selain itu juga guru perlu memperhatikan setiap langkah pada model eliciting activities agar tujuan pembelajaran dapat tercapai.
ANALYSIS OF THE CRITICAL THINKING SKILLS OF CLASS X SMK STUDENTS IN BANDUNG CITY
Authors: Karim Raisya Silvi Abdul , Nurlaelah Elah
Published: May 2023

This article aims to describe the results of analyzing the critical thinking skills of class X SMK students in Bandung city in solving problems on a system of two-variable linear equations. This type of research is descriptive qualitative. The subjects of this study were six students of class X majoring in business management at one of the SMK in Bandung. The research instrument consisted of five questions about critical thinking skills. The data analysis technique used was a data collection technique with documentation methods in the form of test results and student interviews. The results showed that students’ critical thinking skills were still low, especially in question number 5, which had indicators namely evaluating and considering reliable sources or arguments. From the analysis results, it was concluded that this was caused by 1). Students had difficulty identifying important information and 2). Students had difficulity making mathematical models, so students were unable to solve problems. Penelitian ini dilakukan karena belum ditemukannya penelitian yang menganalisis kemampuan berpikir kritis berdasarkan indikator yang diadopsi dari Joko D.P pada konteks siswa SMK. Kemampuan berpikir kritis sendiri bukanlah menyelesaikan persoalan  yang kompleks dengan berbagai macam algoritma tetapi merancang algoritma baru dari situasi yang baru. Keterampilan berpikir kritis berguna dalam kehidupan karena semakin tajam kemampuan berpikir kritis maka semakin baik kemampuan siswa dalam memecahkan masalah. Penelitian ini bertujuan untuk mendeskripsikan hasil analisis kemampuan berpikir kritis siswa kelas X SMK di Kota Bandung dalam menyelesaikan soal sistem persamaan linear dua variabel. Penelitian ini merupakan penelitian deskriptif kualitatif. Sampel dari penelitian ini adalah 6 orang siswa kelas X di SMK Dhyana Sakti Bandung. Instrumen penelitian ini terdiri dari soal tes kemampuan berpikir kritis sebanyak 5 soal, pedoman wawancara dan dokumentasi. Teknik pengumpulan data yang digunakan yaitu melalui tahapan reduksi data, penyajian data dan penarikan kesimpulan . Hasil penelitian menunjukan bahwa kemampuan berpikir kritis siswa masih rendah khususnya pada soal nomor 5 yang memiliki indikator yakni mengevaluasi dan mempertimbangkan sumber terpercaya atau argumen . hal tersebut disebabkan oleh 1). Siswa kesulitan mengidentifikasi informasi penting dari soal cerita sistem persamaan linear dua variabel 2). Siswa kesulitan membuat model matematikanya sehingga siswa tidak mampu menyelesaikan soal.
Form and form creation in the art of painting
Authors: Basanets Luka , Maslova Tetiana
Published: May 2023

The article draws attention to the need to study and master the concepts "form ‒ form creation" in the art of painting, relying on their unique importance in the process of creating an artistic image. Analysing the current state of the problem, and understanding its role in the future professional activity of artist-pedagogues, we are forced to state that this important section of art pedagogy still remains outside the boundaries of professional attention, despite the active request of student youth. However, we admit that the interest in studying the "form ‒ form creation" expressed by the students of the Faculty of Arts and Graphics as well as the impossibility of its implementation in the educational process depend not only on the professional wishes of teachers and students, but also on the lack of software, the shortage of special literature and the laboriousness of extracting necessary data from its volume, and, most importantly, ‒ on the difficulty of assimilating material during independent study. Similar factors forced the authors of the article to compile and offer a shortened version of the textual information from theoretical provisions and examples of form creation in the world art of painting, giving further analysis of the quality of its perception by the student audience. For the practical implementation of the event, a number of milestone topics were developed, which made it possible to create a certain methodical course for solving strategically selected issues.
Hepatitis B infection among hemodialysis patients in Al-Jazirah State: a seroepidemiological survey
Authors: Moglad Ehssan H. O. , Mohammed Hajir E. E. , Ali Hatim T.O.
Published: May 2023

Hemodialysis patients are more susceptible to HBV infection because they have low immunity and can be inflicted through an improperly sterilized machine or through a tainted blood transfusion. A cross-sectional study aimed to study the prevalence of HBV among hemodialysis patients in Aljazeera State, Hospital for Renal Disease and Surgery during the period between March and August 2018. A total of ninety-one blood samples were obtained randomly from hemodialysis patients. The plasma was examined for the presence of HBsAg using a sandwich Enzyme-Linked Immuno-Sorbent Assay (ELISA). Data collected by a structured questionnaire included sociodemographic data such as age, sex, marital status, education level, duration of dialysis, previous HBV vaccination, history of surgical operation, history of jaundice and history of blood transfusion. Detectable marker for HBV infections (HBsAg) were found in 21 (23.1%) patients, while the remaining 70 patients (76.9%) were negative. We noted that education level and a history of jaundice had a significant effect on the seroprevalence of HBV, with a P value <0.05.

The study concluded that HBV infection among hemodialysis (HD) patients is high. So, extensive effort to enroll HD patients in a vaccination programme against HBV is recommended. Moreover, periodically screening for early detection of HBV infection among hemodialysis patients is deemed essential in order to for therapeutic measures to be promptly initiated, and for the prevention and protection of other patients and staff in the hemodialysis unit.
Development of standardization methods of gel with sapropel extract and their validation
Authors: Strus Oksana , Revyatskyy Ivan , Holota Serhii , Gushcha Sergey
Published: May 2023

Humic acids (HA) are important natural compounds that are characterized by a wide range of biological activity and therapeutic impact on different pathological processes. Sapropels are natural healing resources that contain a large amount of HA. The pharmaceutical market of Ukraine needs domestic drugs with dermatotropic action based on natural compounds that have a combined antibacterial, wound healing and anti-inflammatory activity, as well low toxicity.

The aims of the research: standardization of the gel under the conditional name "Saprogel" for use in medicine as a wound-healing and anti-inflammatory agent, development of methods for identification and quantification, as well as their validation.

A linear dependence between the concentration of the total mass fraction of HA on the mass of the sample of aqueous sapropel extract (ASE) with a correlation coefficient of 0.9985 (≥0.9981) was observed, while the angular coefficient of linear dependence (b) was found to be 1.02, with the free member of linear dependence (a) being – 1.66≤2.60. The obtained results show that the method is precise because the value of the relative confidence interval is less than the critical value for the convergence of the results: Δ%=1.27≤1.60 and the criterion of the insignificance of systematic error: δ=0.51. As a result of the quantitative analysis, we found that the total mass fraction of HA in the gel samples from the wind farm is 1.302%.
Chia sprouts and microgreens as a new nutraceutical raw materials and their health-promoting impact in modern dietetics
Authors: Szopa Agnieszka , Motyka Sara , Ekeirt Halina
Published: May 2023

Today, plant sprouts are one of the most important forms of functional foods (FOSHU – Food For Specified Health Use), in nutraceutical diets based on so-called “healthy food”. The health-promoting effects of sprouts are due to their rich chemical composition and high nutritional quality compared to standard crop raw materials. Recently, many scientific studies have pointed to the medicinal and therapeutic effects of chia seeds (Salvia hispanica), but there is still a lack of research on the composition and biological properties of chia sprouts. In addition to chia sprouts, chia microgreens (microleaves) are becoming prominent in the food industry. This paper reviews the literature data on research on chia sprouts and microgreens. In the work, the process of sprouting chia seeds to boost their nutraceutical properties by increasing their content of protein, dietary fiber, vitamins and mineral salts, is revealed. The review underlines the fact that sprouting contributes to the enhancement of antioxidant potential by increasing the production of polyphenolic compounds from the phenolic acid group and flavonoids. What is more, single studies noted in the study indicate the antimicrobial properties of chia sprout extracts against Gram-negative (Escherichia coli, Salmonella typhi, Pseudomonas aeruginosa) and Gram-positive (Staphylococcus aureus) bacterial strains. The paper is the first comprehensive review of the latest scientific information on the comparison of chia: dry seeds, sprouted seeds, sprouts and microgreens.
Mephedrone – a synthetic derivative of cathinone
Authors: Bielecka-Papierz Gabriela , Poleszak Ewa , Serafko Anna
Published: May 2023

Novel psychoactive substances (NPS) are a very diverse group of recreational drugs that mimic effects of classic drugs of abuse and, at least at the beginning, are not usually prohibited. Representative of this group is mephedrone – a cathinone derivative. It is widely used as a recreational drug, particularly among club guests. Mephedrone`s effects are compared to effects of cocaine and MDMA but are more short-lived and include: psychostimulation, enhanced empathy, reduced feeling of tiredness, euphoria, hallucinations. This drug also exerts adverse effects, such as: anxiety, delusions, paranoia, psychosis, increased body temperature, elevated blood pressure, sleep disturbances. According to surveys performed on mephedrone users, it may be addictive. Those findings confirms a growing number of behavioural and molecular studies on animals. Mephedrone acts mainly via increasing monoamine transmission through increasing release of dopamine, serotonin and noradrenaline into synaptic cleft, inhibiting their re-uptake and reducing their metabolism. However, participation of other transmitters, modulators and pathways are investigated, including glutamate and nitric oxide. Favorable routes of administering mephedrone is intranasal and per os. Moreover, most often drug users use it in a binge way, e.g. taking repeated doses of a drug in a short period of time. According to animal studies, this pattern of mephedrone use leaves more neural injuries than taking it regularly, but in smaller doses. Our aim was to present a short, but essential, overview of the current knowledge on mephedrone, focusing on its effects, mechanism of action, animal studies evaluating its influence on the brain structures, toxicity and pharmacokinetics.
Innovative Tourism Products as Sustainable Solutions for Emerging Economies
Authors: Gabor Manuela Rozalia , Oltean Flavia Dana , Coca Andrei
Published: May 2023

The current trend in tourism is no longer one of relaxation in the two important seasons but of experiential tourism, developing of new types of tourism, each country identifying (but especially reinventing) its own potential and promoting it below the form of innovative tourist packages and/or products and/or services. Innovation as a concept is setting up the scene for economic growth and is an important tool for economic progress and competitiveness. The aim of this research is to make a bibliometric analysis to find out the most important aspects of innovation linked to tourism as sustainable solutions for tourism in emerging economies. As methods for bibliometric analysis the VOSviewer 1.6.18 software was used on the Web of Science papers to find out the research concepts linked to innovation and tourism. Also, we applied Google Trends search for some of the newest types of tourism to find out the interest of tourists over the last two decades (2010 – 2023) for innovative products from tourism industry (such as: babymoon, adventure, medical, dental, hunting, ecotourism, heritage, museum, etc.). The results emphasis the relation between innovation, tourism, information technology (internet, smart tourism, innovative technology), stakeholders (governments, organizations, municipalities, communities), tourism experience, tourism destination, tourism services, product innovation, competitiveness advantages, economic development, performance, cultural heritage, rural area, ecotourism.
Shepherding the Shepherd in the Midst of a Pandemic
Authors: Abraham Shini
Published: May 2023

This essay explores two key themes in practical theology. First, I offer an evaluation of how ministers fared through the COVID-19 pandemic and consider its impact on life and ministry via reflection on literature as well as on my own practice as a pastoral care worker who “shepherds the shepherd.” Ministers encountered in my line of work frequently display symptoms of burnout. In exploring whether pandemic-related stresses contributed to this burnout, I found that prepandemic studies consistently identified a higher risk of burnout in ministers than people in the general population. This begged the question, why are ministers more susceptible to burnout? Within the scope of this essay, I explore this question via theological reflection.

Secondly, in exploring the importance of spiritual disciplines, specifically the Judeo-Christian idea of Sabbath in preventing burnout, I propose adding the idea of Sabbath rest to theological reflection models and present my rationale for how this contributes to health and flourishing in life, praxis, and theological reflection.
Preconcentration of Cadmium assisted with sonication using Dowex 50WX2-200 Resin
Authors:   Department of Chemistry, Faculty of Mathematic and Natural Sciences, University of Sriwijaya, Indralaya, South Sumatera, Indonesia 30662, Nuraini Siti , Yuniar Yuniar
Published: May 2023

Preconcentration of Cd in water has been carried out using Dowex 50WX2-200 resin as a solid phase extractor. The extraction process was carried out with a sonicator. Elution of Cd which was adsorbed by the resin was released again using 1M HNO3, then Cd was measured using Flame-Atomic Absorption Spectrophotometer. In this study, the effects of pH, sample solutian sonication time, elution time of Cd adsorbed and eluent volume were studied. The results of the optimization of preconcentration conditions were obtained at pH 3, the duration of the sonication process for Cd adsorption was 15 minutes and the elution time was 7.5 minutes and the eluent volume of 1M HNO3 was 10 ml. Method validation was carried out using a Certificate Reference Material, CRM for clean water at optimum conditions. The Accuracy and precision measurement results were obtained 96% recovery and 11% RSD (n=3) which showed the accuracy still in the ranges of acceptance criteria according to the AOAC, between 70% -125 and precision with % RSD < CV Horwitz 14%. Finally, preconcentration of Cd metal in water was successfully with sonicator assisted
Supervisión y evaluación de zonas lacustres en el lago de Zirahuén mediante la implementación de un sistema computacional
Authors:   Centro de Investigación en Computación, Instituto Politécnico Nacional, Ciudad de México, México, Morales-Rodríguez Úrsula S. , Carbajal-Hernández José J. ,   Centro de Investigación en Computación, Instituto Politécnico Nacional, Ciudad de México, México, Molina-Lozano Herón ,   Centro de Investigación en Computación, Instituto Politécnico Nacional, Ciudad de México, México, Tello-Balinas Juan A. ,   Centro Regional de Investigación Pesquera, Instituto Nacional de Pesca, Michoacán de Ocampo, México
Published: May 2023

México cuenta con una gran variedad de lagos de diferentes características y de gran importancia tanto para aspectos biológicos como sociales. El presente trabajo muestra el desarrollo de un sistema computacional para el análisis de la calidad del agua en cuerpos lacustres mediante la medición de parámetros fisicoquímicos de relevancia, como son temperatura, turbiedad y niveles de oxígeno disuelto. A través del diseño y construcción de un sistema de medición sumergible se automatiza el proceso de análisis de calidad del agua. El desarrollo de un software especializado para la gestión y medición de los datos obtenidos permite agilizar el proceso de evaluaciones de calidad del agua. Asimismo, se definen modelos matemáticos para la estimación de los parámetros de la calidad del agua a diferentes profundidades. Las mediciones experimentales realizadas se llevaron a cabo en el Lago de Zirahuén, localizado en el estado de Michoacán de Ocampo, México, debido a la importancia para el ecosistema de la localidad y a la diversidad de especies endémicas que habitan en él. Como resultado se obtiene una herramienta para facilitar la toma de decisiones con el propósito de conservar los cuerpos de agua, permitiendo realizar análisis más avanzados.
Aplicación preliminar del modelo MIKE 21 en un embalse eutrófico durante eventos de crecidas: caso embalse San Roque, Argentina
Authors:   Laboratorio de Hidráulica, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina, Ponce Gabriela Alejandra , Rodriguez María Inés ,   Área de Limnología Aplicada y Calidad de Agua, Centro de la Región Semiárida (CIRSA), Instituto Nacional del Agua, Córdoba, Argentina, Ruibal-Conti Ana Laura ,   Área de Limnología Aplicada y Calidad de Agua, Centro de la Región Semiárida (CIRSA), Instituto Nacional del Agua, Córdoba, Argentina, Muchiut Jonathan ,   Laboratorio de Hidráulica, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina, Rodriguez Andrés ,   Laboratorio de Hidráulica, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
Published: May 2023

La eutrofización constituye uno de los problemas primordiales en calidad de agua, especialmente en cuerpos de agua usados como fuentes de abastecimiento de agua potable. La causa principal de la eutrofización radica en el aporte de nutrientes que desde las cuencas llegan al cuerpo receptor, aumentan su productividad y causan efectos negativos, como floraciones algales tóxicas. En los últimos años, la aplicación de modelos numéricos de calidad de agua ha resultado una herramienta útil para evaluar y predecir problemáticas ambientales como la eutrofización y consecuentemente para la gestión de los recursos hídricos. En general, estos modelos son precedidos de una modelación hidrodinámica. En este trabajo se aplica el modelo numérico bidimensional MIKE 21 al embalse San Roque (Córdoba, Argentina) para estudiar y evaluar la dinámica de variables hidrodinámicas y de calidad de agua asociadas con procesos de eutrofización y en respuesta a eventos de crecida ocurridos en el periodo enero-abril de 2017. Se modelaron y evaluaron las variables hidrodinámicas como velocidad y niveles de agua, y las variables de calidad de agua biológicas como clorofila a, e inorgánicas como oxígeno disuelto, fósforo y nitrógeno. Los resultados mostraron el efecto que los eventos de crecida tuvieron sobre la distribución espacial y temporal de estas variables. El modelo presentó un buen desempeño con respecto a las variables hidrodinámicas y de calidad de agua inorgánicas con errores porcentuales absolutos (MAPE) por debajo del 10 %. Sin embargo, se observó un menor ajuste de las variables de calidad de agua biológicas.