Projection Method Research Articles

Learning Management to Stimulate Critical Thinking in Islamic Religious Education Study Program Students

This research is motivated by the impact of learning management carried out by lecturers on students to think critically. because critical thinking is very necessary in everyday life. Critical thinking is a way for students to have an attitude of deeply about various things and problems that are different within their scope, which attitude involves activities in solving problems, making decisions, analyzing assumptions and organizing strategies and tactics. By having critical thinking skills, students can understand how to face, analyze and solve problems in facing challenges in the era of industrial revolution.Critical thinking learning management for students is effective in improving students' abilities in mastering concepts and subject matter as well as helping students' abilities in analyzing, interpreting and evaluating and being able to convey logical and systematic data presentations. Critical thinking learning management for students supports students' ability to know their own abilities, can interpret problems critically, strengthens students in searching for new information that was not previously known, in focusing a research, the researcher provides the formulation and objectives of the problem that will be reviewed in this research, namely: what lecturers do in the Islamic religious education study program to improve the critical thinking of students in the Islamic religious education study program. This research is included in descriptive qualitative research, with a qualitative approach. The results of the research show that lecturers in the Islamic religious education study program carry out 3 strategies in improving the critical thinking of students in the Islamic religious education study program: First, develop students' critical thinking skills in the aspect of identifying using methods, models and learning approaches. The methods used are lecture, discussion, question and answer, group assignment, project, collaborative, and inquiry methods by carrying out activities where students provide information to fellow students by explaining verbally and also through presentations from students. Second, the strategy for developing students' critical thinking skills in the analytical aspect is that students are presented with scientific problems and encouraged to analyze the material, then conclude and develop aspects of evaluating the problem, either cross-checking or checking the results of the conclusions. And third, the lecturer's strategy in developing students' critical thinking skills in the Islamic religious education study program in the aspect of evaluating problems.

The effects of weather shock on income inequality: evidence from Asia‐Pacific Economic Cooperation (APEC) member economies

This study empirically investigates the dynamic effects of weather shock on within‐country income inequality. Using panel data of 17 Asia‐Pacific Economic Cooperation (APEC) member economies, we estimate impulse responses via the local projection method. Moreover, temperature and precipitation shocks, defined as deviations of temperature and precipitation from their historical norms, are exploited to measure country‐specific weather shocks. The empirical results reveal the following. First, temperature and precipitation shocks deteriorate income inequality measured by the Gini index; these effects are long‐lasting. Moreover, asymmetric effects exist: heat waves and droughts more significantly increase income inequality than cold waves and floods. Lastly, current redistribution policies do not seem to effectively mitigate those adverse effects.

A novel discontinuous Galerkin projection scheme for the hydrodynamics of nematic liquid crystals

This paper is focused on the numerical approximations for the hydrodynamic model of nematic liquid crystals. Under the framework of a splitting projection method, we propose a novel interior penalty discontinuous Galerkin (DG) method for solving the coupled system, which is employed by combining the scalar auxiliary variables (SAV) approach, implicit-explicit (IMEX) treatments and a rotational pressure-correction method. One prominent feature of the developed scheme here is by introducing an additional stabilization term artificially in liquid crystal equation to balance the explicit treatment for the coupling term, so that the computations of vector field from velocity field are decoupled. Hence a linear, fully decoupled and unconditionally energy-stable DG scheme can be achieved in a fully discrete manner. We show that the resulting scheme is uniquely solvable and unconditional energy stable, and the optimal error estimates of the proposed scheme are further proved theoretically. Finally, numerical results are carried out to demonstrate the accuracy and energy stability of our scheme.

Non-market value losses to coastal ecosystem services and wetlands from sea-level rise and storm surge, 2050 to 2100: The Kimberley Region, Western Australia

Accelerating climate change from the thermal expansion of oceans and losses from terrestrial glaciers and ice sheets causes sea level rise (SLR), damaging coastal ecosystems and generating non-market value losses. Using an innovative Artificial Intelligence (AI) projection method and 18 existing geographical SLR projections, we project future sea level rise and storm surge (SLR/S) for the 1600 km coastline of the Kimberley Region, Western Australia, a region with a larger surface area than Great Britain, Ireland, and Portugal combined and with a permanent population of 40,000 people of which more than 16,000 identify as Indigenous. Using our projected coastal area inundation from future SLR, we estimated the non-market value losses of the Kimberley's coastal ecosystem and wetlands with projected SLR/S to 2050 and 2100 for Representative Concentration Pathway (RCPs) 4.5 and 8.5. Average annual non-market losses from SLR/S in 2050 and 2100 in the Kimberley are large relative to the size of the regional economy and are estimated to range from A$2.7 to A$4.3 billion (2050) and A$8.1 to A$15.8 billion (2100), depending on the RCP and temperature pathway. Our findings highlight the need for adequately resourced community-based approaches to climate adaptation.

Evaluasi Risiko Celah Keamanan Aplikasi E-Office menggunakan Metode OWASP

Based on data from Badan Siber dan Sandi Negara (BSSN) in 2022, it was reported that a total of 1,950 security vulnerabilities were found in 457 electronic systems across various applications widely used by the public. The purpose of this research is to evaluate the risk of existing security vulnerabilities in the E-Office application and determine the level and impact that these vulnerabilities can cause. This research focuses on information system security, specifically evaluating the risk of security vulnerabilities in the E-Office application of the Ogan Ilir Regency. The research was conducted using the Open Web Application Security Project (OWASP) method with a risk rating assessment. The research process began with a literature review to gather data and information sources, determine the scope and research objectives, test, identify security vulnerabilities, analyze security vulnerabilities, and the results of the analysis. The research subject is the E-Office application of Ogan Ilir Regency, with the object of the research being the security vulnerabilities in that application. OWASPZap was used as a tool to obtain data on security vulnerabilities, and using OWASPZap, 38 security vulnerabilities were found, with 18 of them meeting the criteria of the OWASP Top 10. Our findings indicate that the security vulnerabilities in the E-Office application of Ogan Ilir Regency include vulnerabilities in authentication levels, access control, configuration, and data validation processes.

Organization of project activities at the university in the system of scientific reflection

Introduction. The relevance of the study of project activities in higher education is related to the role that this form of educational activity plays at the present stage of education development. Interdisciplinary studies emerging at the intersection of sociology, political science, anthropology, philosophy and economics are promising. This article raises the problem of the contribution of the experience, reflections and mediation of a teacher of a pedagogical university to the project method, on the one hand, and the requirements that apply to the competence of student researchers– on the other. The concept of autonomy of student research activity is proposed as a key idea for the transformation of the directions of the modern Russian educational space.Materials and methods. The materials are based on a study conducted by teachers and students of the Stavropol Pedagogical Institute, a branch in the city of Yessentuki in the period from 2015 to 2022 as part of a research project designed at the same institute. Seven research projects were completed: four with certified teachers, three with students who received a history teacher's diploma, and twenty introductory pedagogical projects. In the process of working on projects, coordination activities were regularly carried out aimed at analyzing the work already done and planning the next stages. The frequency of variables in the method was tested with the participation of teachers, young researchers and students enrolled in historical and social studies programs of the Stavropol State Pedagogical Institute, a branch in the city of Yessentuki.Results. The conducted research made it possible to identify the key positions of the researcher in decision-making, to identify the main starting points of the scientific hypothesis in the process of forming goals and objectives, to describe a set of methodological developments and ideas in the implementation of project activities within the framework of a pedagogical university, the problems of human inclusion in the collective social consciousness in the space of a modern city.Discussion and conclusions. It was concluded that experience contributes to reflection, and reflection contributes to building knowledge and changing paradigms.

Investigating (2+1)-dimensional dissipative long wave system in water waves using three innovative integration norms

This research article investigates the dissipative long wave system in (2+1) dimensions. To analyze this system, three separate integrating strategies were used: the single manifold approach, the unified method, and the generalized projective Ricatti equation method. Novel soliton solutions were effectively obtained by applying these strategies to the suggested model. The resulting solutions are various, including mixed soliton-like solutions, dark solitons, rational solutions, triangular periodic solutions, and combined Jacobi elliptic wave function solutions. Using the aforementioned approaches, an extensive variety of solution types has been discovered for the proposed model. The dynamic character of these closed-form solutions has been adequately demonstrated using both three dimensional and two dimensional graphical representations. This visualization helps to better understand the behavior of the acquired solutions.

Controlling effect of palaeo-tectonic stress field on gas occurrence

The paleo-tectonic stress fieldwas hereby inverted by using the stereographic projection method through field and underground observations of conjugate shear joints. On the basis of analyzing and studying the characteristics of gas occurrence in mining areas, the control effect of paleo-tectonic stress field on gas occurrence was discussed from three aspects of gas generation, preservation environment and gas migration. The results show that: (1) During the Indosinian and early-middle Yanshan period, the coal seam was buried deep, and the temperature and pressure conditions were suitable for massive gas generation, especially during the Indosinian period featuring massive gas generation and weak gas migration; (2) During the late Yanshan period, the metamorphic evolution rate of coal seams accelerated, secondary hydrocarbon generation occurred in the coal seams, and a large amount of gas was generated. Meanwhile, the gas migration was enhanced. The gas generation amount was much larger than the emission amount, therefore, making it still a period of massive gas generation in general; (3) During the Himalayan period, the coal measure stratum was in the uplift stage, and a large number of geological structures were developed in the stratum. The tectonic stress field in this period caused the escape of massive coal seam gas. Multi-stage tectonic stress field acted on coal measures strata in turn, resulting in gas generation in coal seam and gas migration at the same time. Besides, gas occurrence is the superposition effect of gas generation, preservation conditions, and gas migration in coal seam.

Drivers of international fiscal spillovers

AbstractThis paper investigates the drivers of international fiscal spillovers across 62 countries for the period covering 1970–2021. Using the local projections method at the country‐pair level, fiscal spillovers are estimated as the cumulative response of the real gross domestic product (GDP) growth in spillover destination countries to a unit shock in the real government spending growth in spillover source countries. Pairwise estimation results (for 3782 country pairs) suggest that there are statistically significant fiscal spillovers for 36% of country pairs, whereas this ratio is 49% for country pairs within the euro area. For the median country pair, a unit shock of real government spending growth in the spillover source country results in about 0.09% of the increase in the real GDP growth of the spillover destination country, whereas this fiscal‐spillover estimate goes up to 0.42% when the spillover source is in the euro area, and the spillover destination is an oil producing country. A secondary investigation based on the Heckman selection model is used to identify the drivers of fiscal spillovers across country pairs, where the existence of statistically significant fiscal spillovers is shown to be connected to the proximity between countries. The size of fiscal spillovers is further shown to increase with the initial (as of 1970) country size, trade openness, and government size of the spillover source country, whereas it decreases with the initial country size and trade openness of the spillover destination country. Important policy suggestions follow.

Visual analysis of fitness landscapes in architectural design optimization

In architectural design optimization, fitness landscapes are used to visualize design space parameters in relation to one or more objective functions for which they are being optimized. In our design study with domain experts, we developed a visual analytics framework for exploring and analyzing fitness landscapes spanning data, projection, and visualization layers. Within the data layer, we employ two surrogate models and three sampling strategies to efficiently generate a wide array of landscapes. On the projection layer, we use star coordinates and UMAP as two alternative methods for obtaining a 2D embedding of the design space. Our interactive user interface can visualize fitness landscapes as a continuous density map or a discrete glyph-based map. We investigate the influence of surrogate models and sampling strategies on the resulting fitness landscapes in a parameter study. Additionally, we present findings from a user study (N = 12), revealing how experts’ preferences regarding projection methods and visual representations may be influenced by their level of expertise, characteristics of the techniques, and the specific task at hand. Furthermore, we demonstrate the usability and usefulness of our framework by a case study from the architecture domain, involving one domain expert.

Decoupled and unconditionally stable iteration method for stationary Navier–Stokes equations

AbstractIt is well known the Oseen iteration for the stationary Navier–Stokes equations is unconditionally stable. However, it is a coupled type scheme where the velocity and pressure are coupled together at each iteration. By treating pressure explicitly would lead to a decoupled iteration, but this treatment is unstable. In this article, we construct a decoupled and unconditionally stable iteration method to solve the stationary Navier–Stokes equations by adopting the pressure projection method to the temporal disturbed Navier–Stokes system whose solution approximates the steady state solution over time (). We also rigorously prove its unconditional stability. Numerical simulations demonstrate that our iterative method is more efficient and stable than the extensively used T‐S and Oseen iterations, and could solve the fluid flow with high Reynolds number.

ПРОЕКТНОЕ ОБУЧЕНИЕ — ОТ «МЕТОДА ПРОЕКТОВ» ДО СОВРЕМЕННОЙ ЭФФЕКТИВНОЙ ТЕхНОЛОГИИ ПРОФЕССИОНАЛьНОЙ ПОДГОТОВКИ (ОПыТ ГУУ)

The article examines project-based learning at State University of Education as a new form of the educational process. Through a brief history of projectbased learning (project method), its advantages and purpose for the development of students’ personalities and their professional training are shown. The results of a study (online survey) of State University students regarding their experience of working on a project are presented: the qualities that project work and cooperation within its framework develop are identified, the difficulties of its implementation are verified from the point of view of project team members, etc. Examples of topics in project work of students of the department are given personnel management and its results are presented.

Two-step inertial derivative-free projection method for solving nonlinear equations with application

Large-scale systems of nonlinear equations play a fundamental role in various applications, spanning from differential equations to economics, engineering, management science, probability theory, and various other applied sciences. This paper proposes a derivative-free iterative method to find ϵ-approximate solutions of large-scale nonlinear equations. The proposed scheme combines the hyperplane projection technique with a two-step inertial extrapolation, presenting a new approach. The proposed method does not require Jacobian information and thus can be applied to solve nonsmooth equations. Under standard assumptions, we prove the proposed method’s global convergence and nonasymptotic O(1/k) convergence rate. Furthermore, we include numerical results and comparisons to demonstrate the efficiency of the proposed method. Finally, we demonstrate the applicability of the proposed method in solving regularized decentralized logistic regression, a popular problem in machine learning applications.

A METHOD OF APPLICATION CASE METHOD AND TEAM BASED PROJECT IN IMPROVING THE QUALITY OF RESEARCH COURSE LEARNING LANGUAGE AND LITERATURE PROGRAM IN EDUCATION STUDIES INDONESIAN LANGUAGE AND LITERATURE

This research was carried out at the Indonesian Language and Literature Education Study Program, Faculty of Teacher Training and Education Tadulako University, odd semester 2021/2022. The purpose of this study was (1) to determine the application of the Case Method and Team Based Project (CM-TBPj) methods in learning Indonesian Language and Literature Research courses for Indonesian Language and Literature Education Study Program students. (2) to determine the quality of learning outcomes of Indonesian Language and Literature Research courses for Indonesian Language and Literature Education Study Program students through the application of Case Method and Team Based Project (CM-TBPj). This type of research is classroom action research. The flow of this research activity consists of two lines, the first is a case method and a team based project, which is preceded by developing a case framework that will be used in the study of Language and Literature Research courses, then followed by collecting an evaluation test of the quality of learning after the case scenario has been carried out. Data was collected using test and non-test techniques. The research data is in the form of the CM-TBPj learning planning design and its implementation is observed and assessed by peers using the CM-TBPj learning planning and implementation instrument in Indonesian Language and Literature Research learning. The results showed that the planning of CM-TBPj was very well designed with a score of 3.5 and the implementation of CM-TBPj in Indonesian Language and Literature Research learning was carried out very well with a score of 4.0. The results also show that CM-TBPj-based Indonesian Language and Literature Research Learning activities can create an authentic, collaborative, and participatory learning atmosphere in solving real problems/cases in Indonesian Language and Literature Research to achieve course learning objectives (CPMK) with a value of the average student learning outcomes Study Group 1 = 85 (A), Study Group 2 = 88 (A), Study Group 3 = 87 (A), Study Group 4 = 88 (A), and Study Group V = 90 (A ).

Progressive virtual risk-based vehicle trajectory optimization in mixed traffic flow

Ramp-merging zones have perennially served as bottlenecks for both safety and efficiency within road traffic. Addressing the inherent uncertainties and anomalous behaviors potentially exhibited by human-driven vehicles (HDVs) in mixed traffic flow, this study introduced a distributed merging control algorithm based on virtual risk assessment. Initially, we proposed a progressive vehicle projection method based on matching degree, formulated to engender smooth longitudinal accelerations. Building upon this foundation, a virtual risk-based longitudinal planning model named V-RQM was established, furnishing longitudinal accelerations with robust stability and safety to Connected and Autonomous Vehicles (CAVs). Results from four diverse simulation experiments corroborate that V-RQM is aptly versatile, suited for conventional one-dimensional car-following environments as well as pre-merging control in heterogeneous traffic flow. The model not only mitigates oscillatory amplitudes while sustaining high traffic efficiency but also exhibits commendable resilience against uncertainties and anomalies indigenous to mixed traffic flow. This research pioneers a novel model-driven approach to ramp-merging control, setting the stage for the full exploitation of CAV capabilities.

Being Stung Once or Twice by Bees (Apis mellifera L.) Slightly Disturbed the Serum Metabolome of SD Rats to a Similar Extent.

In most cases, the number of honeybee stings received by the body is generally small, but honeybee stings can still cause serious allergic reactions. This study fully simulated bee stings under natural conditions and used 1H Nuclear Magnetic Resonance (1H NMR) to analyze the changes in the serum metabolome of Sprague-Dawley (SD) rats stung once or twice by honeybees to verify the impact of this mild sting on the body and its underlying mechanism. The differentially abundant metabolites between the blank control rats and the rats stung by honeybees included four amino acids (aspartate, glutamate, glutamine, and valine) and four organic acids (ascorbic acid, lactate, malate, and pyruvate). There was no separation between the sting groups, indicating that the impact of stinging once or twice on the serum metabolome was similar. Using the Principal Component Discriminant Analysis ( PCA-DA) and Variable Importance in Projection (VIP) methods, glucose, lactate, and pyruvate were identified to help distinguish between sting groups and non-sting groups. Metabolic pathway analysis revealed that four metabolic pathways, namely, the tricarboxylic acid cycle, pyruvate metabolism, glutamate metabolism, and alanine, aspartate, and glutamate metabolism, were significantly affected by bee stings. The above results can provide a theoretical basis for future epidemiological studies of bee stings and medical treatment of patients stung by honeybees.

OPTIMIZATION SCHEDULING PROJECT REHABILITATION BUILDING AND HALL DEKRANASDA AND KALIMANTAN BARAT MUSEUM FENCE USING CRITICAL PATH METHOD (CPM)

This study investigates the optimization of project scheduling using the Critical Path Method (CPM) in construction projects. Focusing on the Building Rehabilitation Project, Dekranasda Hall, and Kalimantan Barat Museum Fence, the research aims to reduce project duration without altering costs. CPM is employed to map out activities in a network, identifying the critical path to enhance time management. The initial project duration was 249 days. By breaking down work items and increasing the number of workers in critical activities, the duration was reduced to 125 days. Optimization involved dividing tasks into manageable segments and determining the appropriate workforce through trial and error. The study demonstrates that effective project scheduling and resource allocation can significantly reduce completion time, highlighting CPM's value in project management for achieving efficiency and meeting deadlines. The findings emphasize the importance of detailed planning, dependency logic, and continuous monitoring to optimize construction project timelines.

Mathematical and Experimental Simulation of Operating Modes of Capillary Emitter of Electrostatic Colloidal Microthruster

This work experimentally and theoretically analyzes the dynamics of the process of ion emission from a capillary emitter filled with an ionic liquid as a working fluid. Such emitters can be used in the energy system of low-mass satellites as a source of jet propulsion. The dependence of the thrust of a micromotor on the electrical power supplied to it was experimentally studied, which made it possible to determine the most efficient operating modes of the microthruster. This is of interest from the point of view of increasing the energy efficiency of the latter in conditions of limited power availability of low-mass satellites. It was found that the characteristic “electric field voltage – emitter thrust” is non-monotonic with a pronounced maximum, which imposes restrictions on the magnitude of the electric field in the emitter. To explain the limit of emission intensity, a diffusion-convective model of ion movement inside the capillary was constructed. The main idea of the proposed model is the assumption that the intensity of ion emission is determined by their concentration at the outlet of the capillary, and the velocity of the emitted ions is higher than the velocity of flow of the ionic liquid in the capillary as a continuous medium. Moreover, the acceleration of ions at the outlet of the emitter increases nonlinearly with increasing external forces. The decrease in the concentration of ions as they are emitted must be compensated by their diffusion inside the capillary and convective flows, the velocity of which is limited. The constructed system of equations is analyzed numerically. For the system of Navier – Stokes equations, the projection method proposed by Chorin is applied. Based on the known velocity field, density, and concentration distribution, a time step is taken for the equations of motion. Then, taking into account the found velocity, a time step is taken for the convective diffusion equations and the density field is recalculated. The created code made it possible to confirm the possibility of the existence of a maximum mass flow rate of ions, i.e., micromotor thrust, which is in qualitative agreement with the experimental data. The main factor on which the magnitude of the maximum and its position depend is the degree of nonlinearity of the coefficient responsible for the acceleration of ions at the outlet of the capillary.

An Android Sensors-Based Portable Road Health Monitoring System Utilizing Measurement Uncertainty Analysis

Abstract Road health monitoring systems aim to obtain the technical indexes of roads, and then analyze the usage and the degree of damage of the roads, which can provide an important basis for road construction, maintenance, and management. Road roughness is one of the main technical indexes for road quality evaluation and road health monitoring. This study built a system and implemented it as an application to measure and analyze road longitudinal profiles simply and conveniently using the sensors in a mobile phone. The application uses the accelerometer sensor and the gravity sensor to obtain vertical acceleration by a projection method, then denoises through empirical mode decompositions and a Butterworth filter, which has a repeated measurement error of 11%. Different filters were compared and the repeatability, accuracy, robustness, and effectiveness of the system were analyzed. An index to evaluated road longitudinal profiles is given, so that the results can be analyzed and viewed interactively in the application, and a series of cases are given in this paper.

PEDAGOGICAL STRATEGIES AND METHODS FOR FOSTERINGCREATIVITY THROUGH DESIGN

The article is devoted to the study of pedagogical strategies and methods used to form the creativity of students through the method of projects in the context of the Kazakh educational system. A mixed-method approach was utilized in this study, encompassing qualitative data analysis based on literature reviews, analysis of educational plans, interviews with experienced educators, analysis of students' completed projects, as well as quantitative analysis involving statistical data processing. The study revealed that the project method has a positive impact on the development of creativity of students in Kazakhstan. Seasoned educators employing this approach introduced valuable techniques and strategies conducive to stimulating students' creativity. The analysis of projects executed by students confirmed the existence of innovative and creative works. The outcomes of this article may serve as a foundation for the further development of educational programs and strategies aimed at fostering students' creativity in Kazakhstan and other educational systems.