bluuebunny/crossref_metadata_2025 huggingface dataset:
ASPECTOS CUANTITATIVOS DE LA FAUNA PARASITARIA DE LAS CACHARAS PSEUDOPLATYSTOMA FASCIATUM Y P. TIGRINUM (SILURIFORMES: PIMELODIDAE) DEL RÍO JAMARI, ARIQUEMES, RONDÔNIA, BRASIL
Authors: Lago Carvalho Angélica , Poblete Vidal Leticia , Luque José Luís
Published: August 2021

Pseudoplatystoma (Bleeker, 1862) species are of commercial importance in the region of Rondônia, however studies with the species are scarce, so the objective of the research was to carry out a diagnosis of the composition and structure of the parasite communities of Pseudoplatystoma fasciatum (Linnaeus, 1766) and P. tigrinum (Valenciennes, 1840) of the river basin Jamari, Ariquemes - RO, Brazil. During the period from November / 2016 to February / 2018, 50 specimens of P. tigrinum and 51 specimens of P. fasciatum were collected. Of the total sampled fish, 45 specimens of P. tigrinum and 51 specimens P. fasciatum were parasitized by at least one species of parasite presenting a prevalence level of 90% and 100%, respectively. In the parasitic infrapopulations of P. tigrinum, the groups with the highest prevalence rates were nematodes, with larvae being the largest representative of the group, followed by monogenean Vancleaveus ciccinus Kritsky, Thatcher e Boeger, 1986 and for P. fasciatum the parasite helminths that presented the highest prevalence level were the Cestoda groups: Megathylacus sp. Woodland, 1934; Harriscolex sp. Rego, 1987; Monticellia sp. La Rue, 1911; Nominoscolex sp. Woodland, 1934; Nematoda: larvae; Eustrongylides sp. Jägerskiöld, 1909; Cucullanus sp. Müller, 1777; Contracaecum sp. Railliet Henry, 1912 and Monogenea: Vancleaveus ciccinus One species showed a negative correlation between total length and average abundance for P. tigrinum, while P. fasciatum correlation was positive for three species. The comparison of abundance averages by sex for P. tigrinum showed no significant difference between groups, for P. fasciatum a significant difference was observed among the individuals parasitized by Peltidocotyle sp., Monticellia sp., Nominoscolex sp. where females showed higher average abundance in relation to males.
The Omnipresent and The Omnipotent – Surveillance and Power
Authors: Aravindan Anjely , R Nair Aiswarya
Published: August 2021

The objective of this paper is to trace the derivation of power through imperious surveillance upon the citizens of Panem and the consequent denial of citizen rights. The paper also analyses the nature of people’s fear of being watched and how the overbearing surveillance system in action can violate individual privacy. The act of being continuously watched or monitored and the knowledge of being under the control of power, a 'watchful eye', can create a huge impact upon the people under surveillance. In the modern world, people are being watched continuously and closely and are tracked through economic activities and electronic media. The paper aims to prove that surveillance in any form is a constraining force limiting people from being themselves. The Hunger Games by Suzanne Collins portray a dystopian post-apocalyptic land of Panem where the Capitol uses surveillance and the people’s fear of being watched as tools to assert their power over the citizens. After years of being watched and controlled, the people of Panem have forgotten basic citizen birthrights and the beauty of freedom in their lives. These people lose their real identity in this cage where they are devoid of any individual preferences. If the citizens are not completely aware of the value of privacy which is an inherent human right and much required for individual growth and development, the possibilities of losing the contemporary world to such a dystopian reality are high.
Risks of digital transformations of labour relations and the labour market
Authors: Kychko Iryna , Samiilenko Halyna , Khudolei Veronika , Bondar Nataliia , Kravchyk Yurii
Published: August 2021

The article investigates the risks of transforming labour relations in Ukraine under the influence of digitalization processes. The relationship of the digital economy with the processes taking place in the social and labour sphere is substantiated, its impact on the state of the labor market is assessed. Positive effects of automation application are affected, and the negative consequences of digitalization in the HR sphere. The risks of rotors and employees are addressed by the issues of the impact of digital technologies and automation on social and labour relations. It is argued that in the context of increasing remote, remote work, the work rings to comply with the principle of permanence. Works become inherent in the principles of episodicity, individualism. It is determined that the result of episodic labour relations may be the risk of non-payment of taxes on the income of workers, non-receipt of funds to the budget, loss of a significant part of taxes received from the incomes of the population, and therefore - a decrease in the base of financing social functions of the state.
Pembuatan minyak plastik dengan metode destilasi bertingkat
Authors: Setiawan Rahmady , Dharma Untung Surya , Andriyansyah Nopri , Irawan Dwi , Yanto Repki
Published: August 2021

Waste is unwanted residual material and is no longer used after the end of a process. garbage that cannot be decomposed (undegradable) which is rubbish that cannot rot like plastic, becomes a problem in itself, so much garbage is disposed of every day by humans becomes a very complex problem that is certainly very disturbing to the environment and ecosystem, therefore management is efficient and precise will be very helpful in efforts to reduce waste in the environment, by conducting a multilevel distillation process it is hoped that waste will become a fuel which is certainly more useful. The types of waste used in this study include: PET (Polyethylene terephthalate, HDPE (High Density Polyethylene), PVC (Polyvinyl Chloride), LDPE (Low Density Polyethylene, PP (Polypropylene), PS (Polystyrene). The purpose of this study is to know the value of Viscosity, Density, and Calorific Value of plastic oil which is processed by the distillation method stratified at temperature variations.From the tests conducted using temperature variations, the density value of oil sample C which is distilled at a temperature of 450o C in both tubes has the highest value, namely 0.844 gr / cm3.The highest heating value is in PP (Polyprophylene) oil of 43808.1 Joules / gram. The oil viscosity of sample C has the highest value of 1.9200 cSt.
Analisa uji ketahanan fatigue Aluminium scrap hasil remelting sepatu rem (brake shoe) terhadap variasi beban menggunakan tipe rotary bending
Authors: Wahyono Wahyono , Nugroho Eko , Handono Sulis Dri , Budiyanto Eko
Published: August 2021

Used brake shoes are a component of a two-wheeled vehicle that has a type of aluminum material. Therefore, we can do remelting aluminum from brake shoes that can no longer be used for advanced application use and utilization of brake shoe waste which still has a sale value. This study aims to determine the best value or the one that approximates the fatigue limit endurance value of each loading variation given to the specimen and to determine the characteristics of the fracture surface from the differences in given loading. The research method used for fatigue testing is by using a literature study and direct observation or observation. Before doing the fatigue testing, first, do the tensile test to get the yield strength value where this value is used for the loading that will be given to the fatigue test, the loading variations are given for the fatigue test are 40%, 50%, and 60 % of the yield strength value. From the results of fatigue testing at a load of 60% with the stress of 100.2 MPa and a given load of 3.81 kg, it can be seen that the value of material fracture at 27,421 cycles and in the timeframe 00:18:16. Then at 50% loading with the stress of 83.5 MPa and a given load of 3.18 g, it can be seen that the fracture value of the material in the 51,659 cycles in the fracture period is 00:34:35. Then in the next test with a load of 40% and given the stress of 66.8 MPa and a load of 2.5 kg, it is known that the fracture value of the material in the 106,930 cycles in the fracture period reaches 01:11:17. From the test data, it can be concluded that the ratio between cycle and time with voltage is inversely proportional, that is, the smaller the voltage the greater the cycle and time obtained, and vice versa, the greater the voltage, the smaller the cycle and time will be obtained.

Keywords: Used brake shoes, Aluminum, Remelting, load variation, fatigue test.
Experimental evaluation of mechanical properties of friction welded mild steel
Authors: Nugroho Eko , Budiyanto Eko , Suseno Enggal Bagus
Published: August 2021

Friction welding is a solid state joining process used to join similar and dissimilar metals, not possible with other available welding techniques. Now a day’s Friction welding is most commonly used in industry that is aeronautical engineering, automobile engineering, submarine industry and heavy industry. In this research, an experimental setup was designed and fabricated in order to accomplish friction welded joints mild steel. Thereafter, the effect of forging pressures and rotation speed on the mechanical properties of friction welded ST 42 steels, produced by mechanical joining, have been investigated. Samples were welded under friction pressure 10 MPa by different forging pressures 25 MPa and 35 MPa with different rotation speed 1095 rpm, 1200 rpm, and 1400 rpm. The tensile strength values of the weldments were determined and evaluated. The top result is produced from sample were welded under forging pressures 35 MPa at rotation speed 1400 rpm that is tensile strength 437,27 N/mm2 and yield strength 399,75 N/mm2.Keywords : friction welding, forging pressure, tensile strength, yield strength, and elongation.
Calibration and Auto-Refinement for Light Field Cameras
Authors: Anisimov Yuriy , Reis Gerd , Stricker Didier
Published: August 2021

The ability to create an accurate three-dimensional reconstruction of a captured scene draws attention to the prin-ciples of light fields. This paper presents an approach for light field camera calibration and rectification, basedon pairwise pattern-based parameters extraction. It is followed by a correspondence-based algorithm for cameraparameters refinement from arbitrary scenes using the triangulation filter and nonlinear optimization. The effec-tiveness of our approach is validated on both real and synthetic data
Lift: An Educational Interactive Stochastic Ray Tracing Framework with AI-Accelerated Denoiser
Authors: Soares Gonçalo , Pereira João Madeiras
Published: August 2021

Real-time physically based rendering has long been looked at as the holy grail in Computer Graphics. With theintroduction of Nvidia RTX-enabled GPUs family, light transport simulations under real-time constraint startedto look like a reality. This paper presents Lift, an educational framework written in C++ that explores the RTXhardware pipeline by using the low-level Vulkan API and its Ray Tracing extension, recently made available byKhronos Group. Furthermore, to accomplish low variance rendered images, we integrated the AI-based denoiseravailable from the Nvidia ́s OptiX framework. Lift’s development arose primarily in the context of the graduate3D Programming course taught at Instituto Superior Técnico and Master Theses focused on Real-Time Ray Trac-ing and provides the foundations for laboratory assignments and projects development. The platform aims to makeeasier students to learn and to develop, by programming the shaders of the RT pipeline, their physically-based ren-dering approaches and to compare them with the built-in progressive unidirectional and bidirectional path tracers.The GUI allows a user to specify camera settings and navigation speed, to select the input scene as well as therendering method, to define the number of samples per pixel and the path length as well as to denoise the generatedimage either every frame or just the final frame. Statistics related with the timings, image resolution and totalnumber of accumulated samples are provided too. Such platform will teach that nowadays physically-accurateimages can be rendered in real-time under different lighting conditions and how well a denoiser can reconstructimages rendered with just one sample per pixel
FastRIFE: Optimization of Real-Time Intermediate Flow Estimation for Video Frame Interpolation
Authors: Kubas Malwina , Sarwas Grzegorz
Published: August 2021

The problem of video inter-frame interpolation is an essential task in the field of image processing. Correctlyincreasing the number of frames in the recording while maintaining smooth movement allows to improve thequality of played video sequence, enables more effective compression and creating a slow-motion recording. Thispaper proposes the FastRIFE algorithm, which is some speed improvement of the RIFE (Real-Time IntermediateFlow Estimation) model. The novel method was examined and compared with other recently published algorithms.All source codes are available at:https://gitlab.com/malwinq/interpolation-of-images-for-slow-motion-videos.
Nurses' Knowledge of Palliative Care at Primary, Secondary and Tertiary Levels of Health Care
Authors: Marinić Ružica , Joka Ana , Friganović Adriano , Ljubas Ana , Korent Valerija
Published: August 2021

Introduction. Comprehensive care for patients who no longer respond to treatment procedures is called palliative care. Palliative medicine does not delay or accelerate death, it promotes life, and considers dying as a normal process. In palliative medicine and care there is no place for hierarchy - teamwork, focus on the patient and respect for his autonomy are what is important.
Aim. The conducted research shows the knowledge of nurses about palliative care at the primary, secondary and tertiary levels of health care.
Methods. Prospective research in the Republic of Croatia at three levels of health care has been conducted. The sample included 150 nurses. The instrument used in the study was the Palliative Care Quiz for Nursing (PCQN).
Results. The results showed that the nurses’ knowledge of palliative care is insufficient among the nursing population. Despite numerous training activities conducted over the past ten years, levels of knowledge are still lower than expected. Nurses at the primary level of health care have far greater knowledge than nurses at secondary and tertiary levels.
Conclusion. Results of the study showed the need for quality education with real-life examples in order to achieve higher levels of empathy, spread knowledge about palliative care and about the importance of care for palliative patients. It is recommended to increase the number of educational activities in small groups, in the local language, adaptable and understandable to all health professionals.
Risk for Falls in Patients
with Limb Amputations in the Clinical Institute for Rehabilitation and
Orthopedic Aids of the University Hospital Centre Zagreb
Authors: Golub Danijela , Režić Slađana
Published: August 2021

Introduction. Patient falls are a significant clinical problem, as the fall can result in disability and, in some cases, death. The fall affects the patients’ quality of life, prolongs hospitalization, and increases the cost of treatment. Falls are the result of interaction between various factors. In the hospital setting, falls are considered adverse events.
Aim. To determine the number of patients’ falls at the Clinical Institute for Rehabilitation and Orthopedic Aids of the University Hospital Centre Zagreb (UHC Zagreb) between September 1, 2019, and February 29, 2020.
Methods. The data was extracted after the event from the Hospital Information System (Nursing records) and then processed. The study included 212 patients with limb amputations (both sexes) who were hospitalized in the Clinical Institute for Rehabilitation and Orthopedic Aids.
Results. The results showed that patients with limb amputations have a risk for falls when doing rehabilitation for their primary diagnosis. Of the 212 patients admitted, 209 were at risk of falling according to the Morse Falls Scale, but of the total number of patients, only 2 fell.
Conclusion. Patients with limb amputations have a higher risk of falls. The retrospective study shows that despite the increased risk of falls, the actual number of falls is very small. This shows that the medical staff are doing excellent work.
Implementation of Government Performance Accountability System (SAKIP) in Indonesian Local Government (Case of Regional Development Planning Board of Sukabumi Regency)
Authors: Setianto Tomi , Ningrum Sinta , Muhafidin Didin
Published: August 2021

The use of performance measurement system in the public sector (PMS) has become a panacea in addressing an inefficient bureaucracy that fails to meet the citizen satisfaction by its lethargic service delivery. It has introduced a way for public managers to better generate outcome policy into a concrete-measurable actions. While many countries already demonstrates the benefit of using the system, Indonesia remain struggle in implementing the ideal of performance management particularly in the context of local government that usually lacking of adequate capacity and sources. Despite the continuous support by central government, the diverse of socio-environmental context hinder local government to fully implements of SAKIP. This paper sought to portray the implementation and challenges that is faced by one local government agencies in Sukabumi, West Java Indonesia in implementing Indonesian public performance management system (SAKIP). This paper is using qualitative approach by conducting structured interview to key informants. The results showed that organizational variables have been able to accommodate the implementation of SAKIP policy through units formed specifically in organizational structure and governance regulations, organizational interpretation variables are still necessary to improve the dissemination of policy information to all levels of employees, application variables where the implementation of policies are still experiencing constraints, especially in planning and evaluation, as well as a lack of specific strategies in improving organizational performance. This paper reinforces the results of previous studies related with performance management system in Indonesian local government that its implementation has not been yet showing their best result.
Reflexões acerca das percepções dos profissionais residentes sobre um programa de Residência Multiprofissional em Saúde da Família
Authors: Jungles Regina Pereira , Martins Bruna Lopes , Machado Pamela Freitas
Published: August 2021

Conforme o surgimento e desenvolvimento do Sistema Único de Saúde (SUS), através da Reforma Sanitária, se discute políticas públicas e a forma que se estabelece o cuidado em saúde. Evidenciando aqui a Atenção Primária como porta de entrada do SUS e ordenadora do cuidado. Assim também busca se refletir sobre a atuação dos profissionais e sua qualificação para desenvolverem atividades segundo os princípios do SUS. Com isso, as Residências Multiprofissionais em Saúde surgem como forma de educação permanente que objetiva qualificar a formação profissional. A partir disso, o estudo objetivou-se compreender as percepções e expectativas dos profissionais residentes de um Programa de Residência em Saúde da Família do Vale do Taquari. Tratou-se de um estudo qualitativo no qual foram realizadas uma entrevista através de formulário online com 12 profissionais das áreas de Enfermagem, Fisioterapia, Nutrição e Psicologia, que concluíram ou estão em processo de formação na residência em saúde da família. O método de análise foi baseado na metodologia de práticas discursivas de Mary Jane Paris Spink, a qual aborda sobre os sentidos e significados expressos no cotidiano dos serviços de saúde. Com isso percebeu-se que a residência é composta por alguns interlocutores, sendo de maior evidência tutor, preceptor e residente, sendo atribuído a cada um diferentes papéis e sentidos que são construídos no decorrer do processo. Ainda, a residência é um processo potente e positivo no contexto de formar profissionais para o SUS, sendo evidenciado nas falas dos residentes, porém apresenta diversos desafios no seu funcionamento e organização.
Palavras-chave: Residência multiprofissional em saúde. Atenção primária. Educação em saúde.
MECHANISM OF SALT TOLERANCE IN Vitex trifolia linn. var. simplicifolia Cham: ION HOMEOSTASIS, OSMOTIC BALANCE, ANTIOXIDANT CAPACITY AND PHOTOSYNTHESIS
Authors: Yin DeJie , Bu FengQin , Xu YanFang , Mu DeYu , Chen Qiang , Zhang Jie , Guo Jia
Published: August 2021

Vitex trifolia Linn. var. simplicifolia Cham is a medicinal aromatic plant and perennial halophyte growing in the coastal areas around the Bohai Sea in China. The aim of this study was to investigate the salt tolerance mechanisms of V. trifolia when subjected to different concentrations of NaCl (0, 90, 180, 270, 360 and 450 mM) by measuring growth parameters, ion contents, proline, soluble sugar, soluble protein, malondialdehyde (MDA), photosynthetic pigment contents, chlorophyll ﬂuorescence parameters and antioxidant enzyme activities. The plants died when the NaCl concentration reached 450 mM 20 days after salt stress. Biomass and shoot growth were inhibited by increasing salinity, while root growth was promoted at a NaCl concentration ranging from 90 to 270 mM. Na+ and Cl– accumulation was markedly promoted in both leaves and roots with increasing salinity, while no significant changes were observed in the K+ concentration and K+/Na+ ratio in the leaves. Proline, soluble sugar and soluble protein contents increased significantly with increasing salinity. In order to eliminate the reactive oxygen species (ROS) produced by salt-induced oxidative stress, the activities of peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) were enhanced. Photosynthetic pigment contents and PSII activity did not significantly decrease under salt stress. The results indicate that the mechanism of salt tolerance in V. trifolia are by ion homeostasis, osmotic balance, antioxidant enzyme induction and photosynthesis adjustment.
Mitral valve surgery with extensive annular calcification: review of surgical techniques and postoperative complications
Authors: Baudo Massimo , Petruccelli Rocco Davide , Muneretto Claudio
Published: August 2021

Mitral annular calcification (MAC) represents an important risk factor in mitral valve (MV) surgery. Despite several procedures having been described, no surgical treatment of choice has been established so far: whether a decalcification should be systematically carried out, or if the MV should be preferentially repaired rather than replaced. A review of the literature on patients undergoing MV surgery associated with MAC was performed. Studies were excluded if dealing with endovascular procedures or emergency surgery for associated endocarditis. Case reports were also not considered in the final analysis. The literature search identified 1429 potentially eligible studies, and 25 papers were eventually included. Several surgical techniques were described to approach this challenging condition. During MV surgery, the presence of MAC favors the occurrence of suboptimal intraoperative outcomes. MAC-related complications such as atrioventricular groove rupture, cerebrovascular accident, new permanent pacemaker implantation, intraoperative conversion from valve repair to replacement and mortality were analyzed.

MV surgery in the presence of MAC considerably impacts the postoperative outcomes in terms of morbidity and mortality. A great variability of surgical techniques is reported, suggesting the need for standardization of the approach.
Quantitative Analysis Towards Higher Order Thinking Skills of Chemistry Multiple Choice Questions for University Admission
Authors: Reza* Muhammad , Puspita Kana , Oktaviani Coryna
Published: August 2021

The research about quantitative analysis towards higher order thinking skill of chemistry multiple questions for university admission is carried out in the acceleration class of SMAN Modal Bangsa. This research aims to analyze the test of validity, reliability, correlation between difficulty index and discriminatory power, functioning and nonfunctioning distractors of chemistry multiple questions quantitatively which are frequently offered to students in national university admission. It used a descriptive-quantitative method and purposive sampling technique. Students of the acceleration class were selected purposely because they have been frequently answering the higher order thinking questions. Data were collected using 20 multiple choice questions developed from questions banks. Before questions used for students, the questions were assessed by two validators. The result of the validity test shows that 100% questions were valid with an average scale score of 0.93 (best valid). Further analysis used a reliability test to indicate the correlation of item score and total score of questions symbolized by Cronbach alpha of 0.94, 0.92 and 0.89 for aspect of content, construction, language or culture, respectively. The correlation between difficulty index and discriminatory power was reliable with correlation coefficient of 0.842. The final analysis is done towards distractor function, and it shows that overall 83.75% was functioning distractors. Then, nine questions or 45% met ideal expectations with four functioning distractors. Therefore, the most higher order thinking chemistry multiple questions have good quality or feasible to be used in university admission.    Keywords: higher order thinking, validity, reliability, difficulty index, discriminatory power and distractors
Perbedaan Kesadaran Metakognisi Siswa SMA di Desa dan di Kota
Authors: Sugiharto Bowo , Malinda Elma Rosalia , Azizzah Haifa , Anugerah Jonanda Fattah , Rani Maulika Junia Mustika , Padmi Nur Rochmah Candra , Alifah Nurul
Published: August 2021

Kesadaran metakognisi adalah kesadaran pada kemampuan berpikir untuk mengendalikan proses kognitif yang dipengaruhi oleh beberapa faktor salah satunya yaitu jangkauan informasi  di lingkungan pendidikan. Maka dari itu penelitian ini bertujuan untuk mengetahui perbedaan kesadaran metakognisi siswa SMA di lingkungan desa dan kota. Pengumpulan data dilakukan dengan menggunakan MAI (Metacognitive Awareness Inventory) yang merupakan instrumen tes yang berisi 52 item yang dibagi menjadi dua bagian yaitu pengetahuan kognisi (knowledge of cognition) dan pengaturan kognisi (regulation of cognition). Penelitian dilakukan di SMA Negeri Kebakkramat Karanganyar sebagai representasi SMA di desa dan SMA Negeri 5 Surakarta sebagai representasi SMA di kota. Teknik pengambilan sampel diambil dengan random sampling dari 30 siswa di masing-masing sekolah dari total populasi keseluruhan 150 siswa pada tiap sekolah. Analisis data menggunakan uji kruskal wallis. Hasil penelitian menunjukkan bahwa tidak terdapat perbedaan yang signifikan antara SMA di desa dengan kota pada indikator pengetahuan deklaratif, prosedural, kondisional, perencanaan, pemantauan, debugging, dan evaluasi dan perbedaan yang signifikan hanya ditunjukan pada indikator manajemen informasi metakognisi.
Development of A Guided Inquiry-Based E-module on Respiratory System Content Based on Research Results of the Potential Single Garlic Extract (Allium sativum) to Improve Student Creative Thinking Skills and Cognitive Learning Outcome
Authors: Sari Ilda Sartifa , Lestari Sri Rahayu , Sari Murni Sapta
Published: August 2021

Rendahnya keterampilan berpikir kreatif dan hasil belajar kognitif disebabkan oleh kesulitan mahasiswa dalam memahami konsep yang terdapat dalam bahan ajar yang digunakan dan kurangnya bahan ajar yang menuntut keterampilan berpikir kreatif mahasiswa. Penelitian ini bertujuan untuk menghasilkan e-module berbasis inkuiri terbimbing pada materi sistem respirasi berdasarkan hasil penelitian potensi ekstrak bawang putih tunggal (Allium sativum) yang valid, praktis, dan efektif. Model pengembangan yang digunakan dalam penelitian ini yaitu ADDIE dengan tahapan analyze, design, develop, implement, and evaluate. Data penelitian berupa data kualitatif dan data kuantitatif. Teknik analisis data kualitatif dilakukan dengan mengelompokkan data berupa saran, pendapat, dan komentar perbaikan yang terdapat pada angket validasi dan uji coba produk yang dikembangkan. Teknik analisis data kuantitatif diperoleh melalui instrumen pengumpulan data pada angket validasi dan uji coba produk dalam bentuk persentase. Analisis data keterampilan berpikir kreatif dan hasil belajar kognitif dilakukan dengan uji ANAKOVA. Hasil penelitian diperoleh kevalidan oleh ahli materi sebesar 100%, ahli pembelajaran sebesar 99,32%, ahli praktisi lapangan sebesar 96,6% dengan kategori sangat valid, sedangkan nilai kepraktisan oleh mahasiswa sebesar 89,21% dengan kategori sangat praktis. Keefektifan e-module dilihat dari peningkatan rata-rata nilai keterampilan berpikir kreatif dengan selisih 39,4 dan hasil belajar kognitif mahasiswa dengan selisih 40,92. Kesimpulan yang diperoleh e-module yang dikembangkan sangat valid, sangat praktis, dan efektif digunakan.Kata Kunci: Modul Elektronik, Inkuiri Terbimbing, Keterampilan Berpikir Kreatif, Hasil Belajar Kognitif, Hasil Penelitian
Developing Assessment Instruments of PISA Model to Measure Students’ Problem-Solving Skills and Scientific Literacy in Junior High Schools
Authors: Rosana Dadan , Widodo Eko , Setianingsih Wita , Setyawarno Didik
Published: August 2021

This study aims at producing an assessment instrument of the PISA model to measure students’ problem-solving skills and scientific literacy in junior high schools that are valid, practical, and having potential effects. This research employed the design of development studies. The analysis used the Item Response Theory (IRT) Rasch model based on the junior high school students' responses to the developed PISA assessment instrument on natural science subjects. The result of this study was a test set of PISA model for the material of Vibration, Wave, and Sound consisting of 40 items. The test was valid in terms of content, constructs, and language according to the expert assessment, and practical based on small group trials. It also had a potential effect based on the students’ answers and questionnaires results in the field test. The qualitative analysis showed that the developed test had several potential effects, i.e. the development of students' problem-solving skills and scientific literacy so that they gained a relatively high ability to solve a test with the PISA model. The results of quantitative analysis through field test trials showed that there was a significant effect from the application of the PISA model test to enhance students’ scientific literacy and problem-solving skills in the junior high school with the Sig. value of 0.000 which was less than the significance level of 0.05 (α = 5%).
Implementasi Model Problem Based Learning Dipadu LKPD Berbasis STEM untuk Meningkatkan Keterampilan Berpikir Kritis pada Materi Pencemaran Lingkungan
Authors: Hasanah Zainatul , Tenri Pada* Andi Ulfa , Safrida Safrida , Artika Wiwit , Mudatsir Mudatsir
Published: August 2021

The learning process only focuses on the material by memorizing concepts, students do not use LKPD to do practical work optimally, so the biology learning process in schools does not encourage students to practice critical thinking skills. This study aims to improve students' critical thinking skills by using the PBL learning model combined with STEM-based worksheets on environmental pollution conceptin class 10th SMA Negeri Bireuen district. The approach used is experimental design, the method used is quasi-experimental, with a pretest-posttest design non-equivalent control group design. Population in class 10th IPA SMAN 1 and SMAN 2 Peusangan designed 252 people. The sampling technique used was purposive sampling technique. The research sample was 140 students. The number of samples in the experimental class was 71 people and 69 people in the control class. The instrument used was a reasoned multiple choice question accompanied by a rubric. The data analysis used was n-gain and independent t-test. The results showed that the critical thinking skills obtained was 0.93, with an increase in class critical thinking skills including the high category. The results of the independent sample t-test obtained Sig. (0,000) α (0.05) then Ha is accepted, so it is suggested that there are differences in the critical thinking skills of students between the experimental class and the control class on environmental pollution material in class X SMAN Bireuen. The implementation of PBL learning model combined with STEM-based LKPD can improve students' critical thinking skills on environmental pollution material in class 10th SMA Negeri Bireuen Regency.
Pengaruh Media Macromedia Flash Terhadap Literasi Sains dan Sikap Demokratis Mahasiswa
Authors: Zulfa* Lina Nida , Haryanto Haryanto
Published: August 2021

College students are often considered as adult humans so that when learning science, the use of interesting media is not noticed. Quality science learning can form college students who have scientific literacy and high democratic attitudes which are very important in the 21st century. The solutions that can be used to solve these problems is the macromedia flash learning media. This study aims to determine: 1) the effect of macromedia flash on scientific literacy; 2) the influence of macromedia flash on democratic attitudes; 3) the effect of macromedia flash on scientific literacy and democratic attitudes of college students simultaneously. This study used a quasi experimental method with a nonequivalent control group design. The study population was all PGSD Semester IV students of Ahmad Dahlan University. Sampling with cluster random sampling technique. Data were collected by tests and questionnaires. Analysis of research data using t and manova test. Based on the results of the study obtained both t and manova tests, the significance value is smaller than 0.05, so it can be concluded that: 1) there is an effect of macromedia flash on scientific literacy; 2) there is an effect of macromedia flash on democratic attitudes; 3) there is an effect of macromedia flash on scientific literacy and democratic attitudes of college students simultaneously.
Pengembangan Sumber belajar Biologi Berbasis Potensi lokal Dadiah untuk meningkatkan Keterampilan Proses Sains Siswa
Authors: Sriyati* Siti , Ivana Almira , Pryandoko Didik
Published: August 2021

Abstrak: Indonesia merupakan negara dengan keanekaragaman etnis dan budaya yang tersebar di berbagai daerah. Potensi dan kearifan lokal yang dimiliki oleh berbagai suku bangsa belum secara optimal diintegrasikan dalam pembelajaran di sekolah sebagai sumber belajar. Dadiah merupakan salah satu makanan tradisional dari Sumatrera Barat yang biasa disajikan  sehari-hari pada berbagai acara adat secara turun menurun. Dadiah merupakan produk fermentasi alami berbahan dasar susu kerbau murni. Proses fermentasi terjadi pada wadah berupa tabung bambu. Hasil penyelusuran ke sekolah pada materi Biologi khususnya Bioteknologi,  dadiah sebagai potensi lokal khas Minangkabau tidak pernah diperkenalkan, padahal dadiah merupakan potensi lokal yang perlu dilestarikan. Membelajarkan pembuatan dadiah melalui praktikum dapat menggali dan  melatih keterampilan proses sains (KPS) siswa. Oleh karena itu tujuan penelitian ini adalah mengembangkan sumber belajar biologi berbasis potensi lokal untuk meningkatkan kemampuan keterampilan proses sains siswa. Metode pengembangan sumber belajar yang digunakan adalah metode ADDIE (Analysis, Design, Development, Implementation, Evaluation). Sumber belajar yang akan dikembangkan berupa rencana pelaksanaan pembelajaran (RPP), Lembar kerja siswa (LKS), bahan ajar, evaluasi (soal keterampilan proses sains). Dari hasil penelitian diperoleh sumber belajar untuk membelajarkan bioteknologi sederhana pada biologi khususnya materi dadiah yang valid. Hasil penelitian menunjukkan bahwa KPS siswa mengalami peningkatan pada katergori sedang dengan N-gain 0,61. Kata Kunci : sumber belajar, potensi lokal, dadiah, Minangkabau, fermentasi, keterampilan proses sains
Penerapan Model Discovery Learning dengan Pemanfaatan Virtual Laboratory untuk Meningkatkan Keterampilan Proses Sains dan Hasil Belajar Peserta Didik pada Materi Sistem Ekskresi
Authors: Khairuna* Khairuna , Rahmatan Hafnati , Sarong M Ali , Supriatno Supriatno , Pada Andi Ulfa Tenri
Published: August 2021

Practical skills play an important role in learning to achieve maximum learning outcomes. Lack of involvement in skills activities has an impact on learning outcomes achieved by students.This study aims to analyze the improvement of science process skills and student learning outcomes by applying the discovery learning model and the use of a virtual laboratory. The research method was a quasi-experimental design with a pretest-posttest control group design. The population was 165 students of class XI IPA who came from two schools. The research sample was 113 students, 57 experimental group and 56 control group. This research was conducted in MAN 1 and MAS Oemar Diyan Aceh Besar, Aceh, Indonesia. The research was conducted in the even semester of the 2019/2020 Academic Year. The parameters measured were science process skills and learning outcomes, data collection instruments were multiple choice questions with pretest-postest techniques. Science process skills data and learning outcomes were analyzed using parametric statistics using the independent sample t test. The results showed the correlation between science process skills and student learning outcomes was obtained r = 0.842, this indicates that between science process skills and student learning outcomes has a positive corelation with strong interpretation after being taught with the application of discovery learning models and the use of virtual laboratory on excretory system topic
Analysis of the Relationship Between Concept Mastery and Problem-Solving Skills of Pre-Service Biology Teachers in Human Physiology Courses
Authors: Amanda* Finga Fitri , Sumitro Sutiman Bambang , Lestari* Sri Rahayu , Ibrohim Ibrohim
Published: August 2021

21st century learning focuses on problem-solving skills. A higher level of education requires an understanding of a more systematic concept to elaborate problems. Problem-solving skill is one of the fundamental cognitive processes. It involves higher order thinking to discover solutions or ideas. This research aims to analyze the relationship between concept mastery and problem-solving skill of pre-service biology teacher in human physiology courses. This is descriptive correlational research conducted in Sulthan Thaha Saifuddin State Islamic University Jambi. The sample was selected using the purposive sampling technique. Respondents in this study were 33 students in semester VI. The instrument used in the study was an essay test of concept mastery integrated with problem-solving. The results showed that the average scores of the students' concept mastery and problem-solving were 56.8 and 58.0, respectively. Both included in the poor category. It also showed that there was a relationship between students' concept mastery and problem-solving skill. The correlation value was 0.76, with a significance value of p0.05; therefore, it included in the strong category.
Structural Equation Modeling Multi-group of Science Process Skills and Cognitive in PjBL Integrated STEAM Learning
Authors: Anekawati* Anik , Hidayat Jefri Nur , Abdullah Nabila , Matlubah Helliyatul
Published: August 2021

In Science, students tend to use the ability, which is dominantly controlled by their left-hemisphere brain. This study explores how science process skills (SPS) affect cognitive learning achievement (CLA) of dominantly right-brained and left-brained students. By applying project-based learning on the topic that integrates STEAM elements, this research examines the differences of the effects among those groups. The respondents were 32 8th-grade students from two randomly selected intact classes. This study employed a test to measure exogenous (SPS) and endogenous (CLA) latent variables. The partial least square - structural equation modeling (PLS-SEM) and multi-group PLS-SEM were employed to analyze the results. The evaluation of the outer model shows that both latent variables were valid and reliable. The factor loading value for all indicators of each latent variable was over 0.7. The cross-loading value indicates a higher correlation between the latent variable and its indicators compared to the other variables' indicators. The composite reliability and Cronbach's alpha values were over 0.7. The significance test shows that all indicators of each latent variable were valid. The evaluation of the inner model through the significance test (α=5%) suggests that the science process skill influenced CLA with a coefficient of 0.907. Meanwhile, the 0.822 R-square value demonstrates the variability of the SPS can explain the variability of CLA of 82.2%. The multi-group-SEM test reveals a difference in the effect of SPS toward CLA among dominantly right-brained and left-brained students. While the path coefficient for the former was 0.94, the latter was 0.881.
Mengevaluasi Level Pemahaman Konsep Hidrolisis Garam Peserta Didik Menggunakan Tes Diagnostik Pilihan Ganda Empat Tingkat
Authors: Suteno Ivani Kusnadi , Laliyo* Lukman Abdul Rauf , Iyabu Hendri , Abdullah Romario
Published: August 2021

The ability of students to understand and use concepts is the main key in scientifically explaining various chemical phenomena in nature. This ability develops relatively, often with the development of the learner level. This study aims to understand the level of understanding of the concept of salt hydrolysis of class XI high school students and chemistry students in the I, II, III and IV years and non-chemistry students with a total sample of 875 respondents. The instrument used in this study was a four-level multiple choice test. This diagnostic test combines the measurement of knowledge and reasoning with the level of self-confidence, as a reflection of the level of mastery of concepts. The data analysis technique used is quantitative, using SPSS 25 software, namely the non-parametric test (Kruskal Wallis test), comparing the significance value (Asmp. Sig) with a probability of 0.005. The results showed that the significance value of 0.00 was less than 0.05; That is, there is a significant difference in the level of understanding of the salt hydrolysis concept of students. The level of understanding of the concept of high school students is better than the first, second, third, and fourth year students in chemistry and non-chemistry students. These findings reinforce the story that although students have experienced learning experiences at a higher level, it does not guarantee the development of mastery of understanding the concept of hydrolysis
The Balkans as a bifurcation point of the system of international relations
Authors: Ponomareva E. G.
Published: August 2021

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Balkan Knot: Consequences of the Kosovo Crisis
Authors: Kovacs M.
Published: August 2021

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The beginning of the early modern times in the West and cardinal geopolitical changes in the East of Europe in the second half of the 15th-16th centuries
Authors: Chernikova T. V.
Published: August 2021

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Internal political transformations in the Horn of Africa: trends and/or threats?
Authors: Piskunova N. I.
Published: August 2021

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"The second level" of the PRC tax legislation
Authors: Shepenko R. A.
Published: August 2021

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Categories of model and method and the semiotic dichotomy of language
Authors: Ivanov N. V.
Published: August 2021

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Features of Spanish foreign policy during the reign of Jose Luis Rodriguez Zapatero, 2004-2008
Authors: Anikeeva N. E.
Published: August 2021

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Empire: the historical experience of Rome
Authors: Ukolova V. I.
Published: August 2021

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Nonlinear dynamics: paradoxical disruptures and syntheses of society
Authors: Kravchenko S. A.
Published: August 2021

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At the origins of the Cold War
Authors: Rzheshevsky O. A.
Published: August 2021

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Chinese "expansion" as a resource base of international conflicts in Africa
Authors: Tomberg R. I.
Published: August 2021

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Administrative process: conceptual approaches to its definition
Authors: Kilyaskhanov I. Sh.
Published: August 2021

Административный процесс является наиболее широко востребованным объектом научных изысканий. Тем не менее, данная сфера отличается наличием широкого круга не решенных проблем общего (концептуального) и частного характера. Нужны параллельные поиски решений концептуальных и частных проблем административного процесса.
Democratic Power Struggle: The 2008 US Presidential Campaign
Authors: Jeffrey S. A.
Published: August 2021

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USSR and revival of Indonesian Communist Party
Authors: Efimova L. M.
Published: August 2021

For more than two generations, historians have been asking themselves whether Moscow participated in the organizational and ideological revival of the Indonesian Communist Party (PKI) in 1951-53. Some authors believe that the Indonesian communists defined the new party strategy and tactics independently from either Moscow or Beijing. Scholars have been eager to know whether Moscow participated directly in the promulgation of the new PKI line. Newly released documents show that Stalin played an active and personal role in the process of discussing and refining a new program for the PKI. The main ideas Stalin expressed during his discussions with the Indonesian Communists were incorporated into the new PKI program adopted in 1954, as well as in articles and speeches of PKI General Secretary Dipa Nusantara Aidit.
Crisis and the Russian law and legislation
Authors: Tretyakov K. N.
Published: August 2021

Поскольку нынешний кризис можно отнести к явлению общекультурного характера, право как часть культуры подверглась его влиянию: в системе и содержании права происходят определенные изменения. Во-первых, традиционное деление права на частное и публичное (в зависимости от того, какой интерес - частный или публичный - защищает правовая норма) становится все более нечетким. С одной стороны, государство все сильнее вмешивается в частные (гражданские и торговые) правоотношения, с другой стороны, бизнес также лоббирует свои интересы в отношениях публично-правового характера. Во-вторых, при кризисе происходят значительные изменения в законодательстве, особенно в финансовом (бюджетном, налоговом, банковском). Можно отметить несколько направлений вносимых изменений: создание новых финансовых институтов; усиление защиты прав граждан и организаций; ужесточение мер ответственности за экономические правонарушения; рост государственного контроля за целевым расходованием средств. Также учеными юристами были высказаны предложения по изменению гражданского законодательства. В-третьих, разрабатывая и реализуя меры экономической и социальной стабилизации, следует помнить о том, что в России высшей ценностью являются права и свободы человека. Меры должны быть направлены на защиту прав и свобод, и ни в каком случае не должны нарушать их.
Nicolas Sarkozy’s Anti-Crisis Policies
Authors: Abramenko A. G.
Published: August 2021

В статье А.Г.Абраменко «Антикризисная политика Николя Саркози» дается обзор экономической программы и первых реформ Н.Саркози 2007 г. и рассматриваются антикризисные меры президента в 2008-2009 гг. для оздоровления сферы финансов и реального сектора экономики Франции, которая оказалась менее затронута всемирным экономическим кризисом, чем другие ведущие страны Запада.