Concept Of Map Research Articles

INVESTIGATING THE IMPACT OF STORY MAPS IN DEVELOPING STUDENTS' SPATIAL ABILITIES ON HYDROMETEOROLOGICAL DISASTERS FOR E-PORTFOLIO ASSIGNMENTS

The government of Indonesia has issued a self-study curriculum for colleges based on the principles of the Fourth Industrial Revolution in the digital age. The new rule recommends an online portfolio as a tool for measuring the success of educational programs. Students at Syiah Kuala University (USK) utilized Story Map electronic portfolios to hone their spatial skills in the General Compulsory Course on Disaster and Environmental Knowledge. This study aims to improve upon the concept of the Story Map and use it as a component of students' electronic portfolios in order to evaluate their capacity to plan for and respond to hydrometeorological disasters. The concept of the Story Map is created as a digital portfolio project, beginning with secondary materials including literature studies, raster and vector data from ESRI and Mapbox. The ability to perceive spatial relationships is measured by collecting primary data in the form of a questionnaire. The findings of a F (Simultaneous) statistical test for testing hypotheses are as follows: With Fcount > Ftable = 228.338 > 3.34, we get a value of F = 0.000<0.05. Both e-portfolios and narrative maps impact students' spatial abilities in relation to hydrometeorological disasters, as shown by the F test scores. T-tests for multiple variables Students' spatial intelligence is affected by the narrative map (X1) in the proportion of 4.746 > Tcount > Ttable. 2.048. The e-portfolio variable (X2) has a positive effect on students' spatial abilities (Y), with a value of Tcount > Ttable, or 14.063 > 2.048..

Robotic para-aortic sentinel lymph node mapping in endometrial, cervical, and ovarian cancer.

The concept of pelvic sentinel lymph node mapping has been well-investigated in endometrial and cervical cancer. A variety of tracers have been used including blue dye, technetium-99-m (Tc-99m), and fluorescent tracer indocyanine green. Pelvic sentinel lymph node mapping has shown its safety, efficacy, and diagnostic accuracy, with high sensitivity and negative predictive value of more than 90%, in retrospective cohort studies as well as in prospective trials for robotic surgery. The concept of pelvic sentinel lymph node biopsy has been incorporated in several international guidelines in early-stage endometrial cancer and a subgroup of early-stage cervical cancer, although survival data are still needed to confirm its standard use. The application of para-aortic sentinel lymph node mapping is still in a development phase, but its detection rate and diagnostic accuracy seem to be promising in initial studies. Here, an overview is given of the recent developments in the different methodologies used for identifying para-aortic sentinel lymph nodes in endometrial, cervical, and ovarian cancer.

Between light and shadow: The impact of light augmentation on storytelling and audience engagement in urban, commercial and public spaces

The exploration of light as a transformative and narrative tool in urban spaces has been traced from its historical roots in the 1800s to its contemporary application in creating ‘spatial augmented realities’. This evolution has been examined through the lens of advanced light projection technologies, which have been used to craft compelling narratives and transform public and private spaces. The role of audience engagement in constructing these narratives has been investigated, highlighting the importance of participation and interaction in creating meaningful stories through light technologies. This exploration has led to developing a theoretical model for ‘accordant’ and ‘discordant’ audience responses, providing a framework to understand the spectrum of audience engagement and its impact on the success of light-based narratives. The concept of light projection mapping has been further elucidated, revealing its potential to expand and transform existing spaces through the superimposition of digital representations. This process has been defined, and its technical aspects have been discussed, providing a comprehensive understanding of its application in various settings. Light art has been categorized based on its narrative function and application, with examples drawn from events and festivals that utilize light projection to celebrate heritage or culture. These examples demonstrate light art’s versatility and multifaceted nature in creating memorable and meaningful experiences. The social implications of light projection mapping on monuments have been discussed, positioning it as a medium for audiences to reflect on historical events and their impact on the present. This exploration contributes to the understanding of how light can be used to enhance spaces, tell stories, and engage audiences in urban environments and provides a theoretical basis for future research and practice in the field of light art.

Secure Efficiency Map-Enabled UAV Trajectory Planning

This letter investigates the dynamic changes of security and efficiency in an unmanned aerial vehicle (UAV)-to-ground network with a mobile UAV transmitter, a mobile ground receiver, and a fixed eavesdropper, respectively. To provide communication services with high security, spectrum efficiency, and energy efficiency, a concept of secure efficiency map (SEM) is devised and proposed to plan the UAV trajectory. Specifically, the security-efficiency index of each subarea in a certain area for a certain time slot is firstly calculated. Then, given that the security-efficiency index is time-varying, and CNN-LSTM network can effectively extract data features and accurately reflect time correlation, we take multiple SEMs drawn from the observed security-efficiency indices as the input of the CNN-LSTM network, and output future SEMs. Thirdly, based on predicted future SEMs, an SEM-enabled UAV trajectory planning scheme is further presented to jointly improve security and efficiency of the considered communication network. Finally, simulation results confirm the proposed SEM-enabled UAV trajectory planning scheme achieves a superior joint optimization of security, spectrum efficiency, and energy efficiency to other UAV trajectory planning schemes.

Diffusive pseudo-conformal mapping: Anisotropy-free transformation thermal media with perfect interface matching

Transformation media provide a fundamental paradigm for field regulation, but their tricky anisotropy challenges fabrication. Though optical conformal mapping has been utilized to eliminate anisotropy, two key factors still hinder its development in thermotics, i.e., the distinct diffusion nature and inevitable interface mismatching. Here, we put forth the concept of diffusive pseudo-conformal mapping, overcoming the inherent difference between diffusion and waves and achieving perfect interface matching. The proposed mapping directly leads to heat guiding and expanding functions with anisotropy-free transformation thermal media, whose feasibility is confirmed by experiments or simulations. Besides diverse applications, we provide a unified perspective for two distinct types of prevailing bilayer cloaks by uncovering their profound ties with pseudo-conformal mapping. These results greatly simplify the preparation of transformation thermotics and have implications for regulating other diffusion and wave phenomena.

Design theory of broadband high‐efficiency continuous Class EF power amplifier based on new continuous factor

SummaryThis paper presents the design theory for continuous Class EF power amplifier (PA). This theory facilitates the implementation of broadband designs for high‐efficient Class EF PA. First, combining with the switching operating conditions and harmonic tuning technique, the drain waveform expressions of Class EF PA is derived. The corresponding third harmonic component can get its impedance in form of pure reactance, which simplifies the matching process while maintaining the efficiency. Second, a new continuous factor (CF) dedicated to the continuous Class EF PA can be obtained, with applying waveform mapping concept. The new CF expands the impedance point of Class EF PA into the impedance space. This greatly enhance the flexibility of broadband design. With this new theory, the design of broadband Class EF PA becomes very simple. As a verification, a Class EF PA operating at 2.4–3.8 GHz has been designed using CREE GaN HEMT CGH40010F. The PA can achieve the gain of 9.1–11.2 dB, the output power of 39.1–41.2 dBm, the PAE of 66.3%–74.1%, and the DE of 69.5%–76.2%. Both simulated and measured data show very good consistency and prove the rationality and validity of the proposed theory.

A reflectance re-weighted Retinex model for non-uniform and low-light image enhancement

Image enhancement is a fundamental low-level task of significant importance that can directly affect high-level image processing tasks. Although various methods have been proposed to enhance images, the effectiveness of current methods deteriorates significantly under non-uniform lighting. Since the brightness may vary dramatically in different regions of real-world photos, current methods hardly achieve a good balance between enhancing low-light regions and retaining normal-light regions in the same image. Consequently, either the low-light regions are under-enhanced or the normal-light regions are over-enhanced, while at the same time, color distortion and artifacts are frequently found. To overcome this shortcoming, we propose a robust Retinex-based model with reflectance map re-weighting that can improve the brightness level of the low-light image and re-balance the brightness concurrently. We introduce an alternating scheme to solve our proposed model, in which the illumination map, reflectance map, and weighting map are updated iteratively. By utilizing the regularization terms, the noise is well-suppressed during the process. An initialization scheme for the weighting map is also proposed to make our model adaptable to a wide range of light conditions. To the best of our knowledge, we are the first to propose a variational model with an explicitly constructed re-weighting prior and the associated weighing map concept for the reflectance map. It can estimate the reflectance map, suppress noise, and re-balance the brightness simultaneously. A series of experimental results on a variety of popular datasets demonstrate the efficacy of our method and its superiority in enhancing real low-light images when compared to other state-of-the-art methods.

Peningkatan Hasil Belajar IPS Pada Konsep Peta Lingkungan Siswa MI Banjar

This study aims to describe and analyze the social studies learning process using the concept of environmental maps for class IV MIN 11 Banjar students. This research is a classroom action research carried out collaboratively between teachers and supervisors with the research subjects being class IV students of MIN 11 Banjar, totaling 13 people. Data collection was obtained from interviews, observations and tests. This research was conducted in two cycles, namely cycle 1 and cycle 2. The results showed that using the concept of environmental maps in social studies learning could improve learning outcomes. This is indicated by an increase in learning outcomes before conducting research from 23.1% to 84.6%.

Best Proximity Point Theorem for φ ̃–ψ ̃-Proximal Contractive Mapping in Fuzzy Normed Space

The study of fixed points on the maps fulfilling certain contraction requirements has several applications and has been the focus of numerous research endeavors. On the other hand, as an extension of the idea of the best approximation, the best proximity point (ƁƤƤ) emerges. The best approximation theorem ensures the existence of an approximate solution; the best proximity point theorem is considered for addressing the problem in order to arrive at an optimum approximate solution. This paper introduces a new kind of proximal contraction mapping and establishes the best proximity point theorem for such mapping in fuzzy normed space ( space). In the beginning, the concept of the best proximity point was introduced. The concept of proximal contractive mapping in the context of fuzzy normed space is then presented. Following that, the best proximity point theory for this kind of mapping is established. In addition, we provide an example application of the results

Suzuki type P-contractive mappings

We introduce Suzuki type P-contractive mappings by taking into account the concepts of contractive, P-contractive, and Suzuki type contractive mappings. Then, for such mappings on compact metric spaces, we present a fixed point theorem that is more general than the well-known Edelstein fixed point theorem.

Development of Grammatical Knowledge: Using Mind Map or Inductive Instruction?

This experimental research aimed to 1) compare academic achievement in grammatical knowledge between an experimental group taught with the mind map concept and a control group taught with inductive concept and 2) compare the experimental and control group participants’ satisfaction with the management of instructional activities to develop grammatical knowledge after being taught through the mind map concept. A total of 40 Grade 8 Thai students attending an English class in the second semester of the 2020 academic year were recruited through a simple random sampling approach. The sample was divided into two groups, with 20 students in the experimental group and 20 in thecontrol group. The research instruments consisted of 1) a mind map lesson plan; 2) an inductive lesson plan; 3) an academic achievement test; and 4) a satisfaction questionnaire. Descriptive statistics (mean scores and standard deviations) and inferential statistics (independent samples t-tests) were employed to analyze the quantitative data collected in this study.The findings demonstrate that the experimental group participants improved their academicachievement in grammatical knowledge more than the control group participants at the .01 significance level. In addition, the experimental group participants were significantly more satisfiedwith the management of the instructional activities to developgrammatical knowledge than the control group participants at the .01 significance level.

Environment-Aware Joint Active/Passive Beamforming for RIS-Aided Communications Leveraging Channel Knowledge Map

Reconfigurable intelligent surface (RIS)-aided communication is a promising technology for 6G systems to reconfigure the propagation environment proactively. However, it requires efficient real-time channel training, which suffers excessive overhead. To resolve this challenge, taking advantage of sensing with radio waves and localization, we propose a novel environment-aware joint active/passive beamforming for RIS-aided wireless communication based on the new concept of channel knowledge map (CKM). In the proposed scheme, the user equipments (UEs) location information is combined with the radio environment information provided by CKM to achieve efficient beamforming without real-time training. Simulation results show the proposed scheme’s superior performance over training-based beamforming, which is also quite robust to errors related to UE’s location in practice.

Hot Workability Investigation of an Fe-Al-Ta Alloy Using Deformation Processing Maps

Fe-Al-Ta alloys are expected to replace high-alloyed steels in steam turbine blades. However, the mechanical properties of the forged blades are still not optimal due to limited grain refinement during hot forging and the coarse-grained microstructure inherited from the as-cast precursor. It is, therefore, essential to investigate the hot deformation behavior of the alloy to identify the optimum range for the deformation parameters leading to good hot workability with significant grain refinement. The hot deformation behavior and hot workability of an Fe-25Al-1.5Ta (at.%) alloy were investigated in the present work using constitutive modeling and the concept of processing maps. Uniaxial compression tests were conducted in a strain rate range from 0.0013 s−1 to 1 s−1 and in a temperature range from 900 °C to 1100 °C, where a disordered A2 α-(Fe, Al) matrix phase along with a C14-(Fe, Al)2Ta Laves phase were confirmed by X-ray diffraction. The flow stress–strain curves showed a broad maximum followed by a slight drop in stress until a steady state was reached. The optimum processing window for the studied alloy was located at 910–1060 °C/0.0013–0.005 s−1, where the efficiency of the power dissipation (η) and strain rate sensitivity (m) reached 50% and 0.33, respectively. The material underwent a combination of dynamic recovery and dynamic recrystallization over the whole tested deformation range. No flow instabilities were predicted based on Prasad’s flow instability criterion when deformation was performed up to a true strain of 0.5 and 0.8, indicating a high degree of hot workability of the studied alloy over the entire deformation range tested. The current study reveals a well-suited parameter range for the safe and efficient deformation of Fe-Al-Ta alloys, which may contribute to the optimization of the thermomechanical processing of this alloy.

A Human-Centered Physician Journey.

The COVID-19 pandemic has placed unprecedented strain on global health systems, and the ability to safely and effectively deliver care. Further, it has impacted the mental health of global populations, in particular healthcare providers (i.e., physicians, nurses). In a service delivery context, much can be learned about empathy both from a provider and patient lens. Thus, the literature was explored to see if the concept of journey mapping was used to illustrate the intersections and pain points of the clinical workflow along the physician journey.

Causal decomposition maps: An exploratory tool for designing area-level interventions aimed at reducing health disparities.

Methods for decomposition analyses have been developed to partition between-group differences into explained and unexplained portions. In this paper, we introduce the concept of causal decomposition maps, which allow researchers to test the effect of area-level interventions on disease maps before implementation. These maps quantify the impact of interventions that aim to reduce differences in health outcomes between groups and illustrate how the disease map might change under different interventions. We adapt a new causal decomposition analysis method for the disease mapping context. Through the specification of a Bayesian hierarchical outcome model, we obtain counterfactual small area estimates of age-adjusted rates and reliable estimates of decomposition quantities. We present two formulations of the outcome model, with the second allowing for spatial interference of the intervention. Our method is utilized to determine whether the addition of gyms in different sets of rural ZIP codes could reduce any of the rural-urban difference in age-adjusted colorectal cancer incidence rates in Iowa ZIPcodes.

Analisis Proses Operasional Air Freight Pada Perusahaan Freight Forwarder Menggunakan Value Stream Mapping

This study aims to provide an overview of the concept of Value Stream Mapping and its significance in process improvement. It highlights the key steps involved in creating a VSM and emphasizes its role in identifying and addressing various types of waste, such as waiting time, unnecessary movement, and rework. By mapping the current state of a process, organizations gain insights into its inefficiencies and areas for improvement. Furthermore, the importance of developing a future state Value Stream Map that outlines the desired state of the process after implementing improvements. It emphasizes the need for continuous monitoring and evaluation to ensure sustained progress and ongoing optimization. Overall, Value Stream Mapping offers organizations a systematic approach to analyze, optimize, and enhance their processes. By visualizing the value flow and identifying opportunities for improvement, businesses can achieve higher levels of efficiency, reduced costs, improved quality, and ultimately deliver greater value to their customers. The calculation and analysis explained that the total processing time was 105.8 minutes and the total lead time was 47 minutes resulting in a non-value added (NVA) of 34 minutes. If the converted into a process percentage form, it is 32% of the total time spent on operational air freight.

Narrative Didactics in Mathematics Education: Results from a University Geometry Course

Abstract In a Swedish second semester course on Euclidean and non-Euclidean geometry in mathematics education at Karlstad University, a bridging teaching strategy comprising elements from Mathematics, Didactics, History, Literature, and Technology was applied by using the concept of Narrative Didactics and Digital Interactive Mathematical Maps developed by the Professorship for Didactics of Mathematics at the University of Passau, Germany. The complete assessment of the teaching strategy comprised both an evaluation of the technological and the narrative didactical scaffolding and was partly analysed previously concerning especially the technology acceptance aspect, while here we broaden and deepen the evaluation analysis of the application of narrative didactic elements. Regarding the latter, at the end of the course, students were asked to formulate a short historical-oriented narrative motivation for a school topic of own choice with the help of information provided by the timeline of the Mathematical Map. A representative example of these art-combining products is presented and evaluated according to elements of narrative didactics. Results indicate a fruitful, promising, and synergetic connection between different fields of Science, Technology, Engineering, the Arts, and Mathematics that can lead to a richer and more sustainable learning process in mathematics lessons both at university and school level.

Banach Contraction Principle-Type Results for Some Enriched Mappings in Modular Function Spaces

The idea of enriched mappings in normed spaces is relatively a newer idea. In this paper, we initiate the study of enriched mappings in modular function spaces. We first introduce the concepts of enriched ρ-contractions and enriched ρ-Kannan mappings in modular function spaces. We then establish some Banach Contraction Principle type theorems for the existence of fixed points of such mappings in this setting. Our results for enriched ρ-contractions are generalizations of the corresponding results from Banach spaces to modular function spaces and those from contractions to enriched ρ-contractions. We make a first ever attempt to prove existence results for enriched ρ-Kannan mappings and deduce the result for ρ-Kannan mappings. Note that even ρ-Kannan mappings in modular function spaces have not been considered yet. We validate our main results by examples.

A hybrid agent-based model integrated with a multi-stage learning-based fuzzy cognitive map

PurposeThis article proposes a novel hybrid simulation model for understanding the complex tobacco use behavior.Design/methodology/approachThe model is developed by embedding the concept of the multistage learning-based fuzzy cognitive map (FCM) into the agent-based model (ABM) in order to benefit from advantageous of each methodology. The ABM is used to represent individual level behaviors while the FCM is used as a decision support mechanism for individuals. In this study, socio-demographic characteristics of individuals, tobacco control policies, and social network effect are taken into account to reflect the current tobacco use system of Turkey. The effects of plain package and COVID-19 on tobacco use behaviors of individuals are also searched under different scenarios.FindingsThe findings indicate that the proposed model provides promising results for representing the mental models of agents. Besides, the scenario analyses help to observe the possible reactions of people to new conditions according to characteristics.Originality/valueThe proposed method combined ABM and FCM with a multi-stage learning phases for modeling a complex and dynamic social problem as close as real life. It is expected to contribute for both ABM and tobacco use literature.

Quasi Poisson structures, weakly quasi Hamiltonian structures, and Poisson geometry of various moduli spaces

Let G be a Lie group and g its Lie algebra. The aim here is to develop a theory of quasi Poisson structures relative to a not necessarily non-degenerate Ad-invariant symmetric 2-tensor in g⊗g and one of general not necessarily non-degenerate quasi Hamiltonian structures relative to a not necessarily non-degenerate Ad-invariant symmetric bilinear form on g, a quasi Poisson structure being given by a skew bracket of two variables such that suitable data defined in terms of G as symmetry group involving the 2-tensor in the tensor square of the Lie algebra g measure how that bracket fails to satisfy the Jacobi identity. The present approach involves a novel concept of momentum mapping and yields, in the non-degenerate case, a bijective correspondence, in terms of explicit algebraic expressions, between non-degenerate quasi Poisson structures and non-degenerate quasi Hamiltonian structures. The new theory applies to various not necessarily non-singular moduli spaces and yields thereupon, via reduction with respect to an appropriately defined momentum mapping, not necessarily non-degenerate ordinary Poisson structures arising from the data including the symmetric 2-tensor in g⊗g. Among these moduli spaces are representation spaces, possibly twisted, of the fundamental group of a Riemann surface, possibly punctured, and moduli spaces of semistable holomorphic vector bundles as well as Higgs bundle moduli spaces. In the non-degenerate case, such a Poisson structure comes down to a stratified symplectic one of the kind explored in the literature and recovers, e.g., the symplectic part of a Kähler structure introduced by Narasimhan and Seshadri for moduli spaces of stable holomorphic vector bundles on a curve. In the algebraic setting, these moduli spaces arise as not necessarily non-singular affine not necessarily non-degenerate Poisson varieties. Along the way, a side result is an explicit equivalence between extended moduli spaces and quasi Hamiltonian spaces independently of gauge theory.