Miracle-dz/UniFAR-FTUs huggingface dataset:
Front’s dynamics of quasi-infinite grassland fires

Numerical simulations of grassland fires were carried out to study the effects of the wind speed on the dynamics of the fire front. This study was performed using a detailed physical model based on a multiphase formulation, consisting in solving the balance equations (mass, momentum, energy .) governing the behavior of the coupled system formed by the vegetation layer and the surrounding atmosphere. The objective of this study is to focus on the 3D interactions between a quasi-infinite fire front propagating through a homogeneous vegetation layer (a grassland) and an atmospheric boundary layer flow representing an idealized wind flow. The behavior of a surface fire results from the competition between the buoyant force of the thermal plume and the inertial force of the wind. In 3D, the interaction between these two forces is at the origin of the structuration of the fire front as a succession of peaks and troughs that modify the flames dynamics in a manner different to what can be observed in a simplified 2D assumption. To reproduce a quasi-infinite fire front, the numerical simulations were carried out using periodic boundary conditions along the two lateral sides of the computational domain. The numerical results highlights the 3D structuration of the fire both vertically and horizontally, and the significant effect of an increase of the wind velocity on the rate of spread (ROS) and on the fire intensity. Results also show that the correlation between Froude’s number (based on the fire-front structures characteristic-wavelength) and Byram’s number is the same at small scale (litter fires) and at large scale (grassland fires).
A computational model of systems memory consolidation and reconsolidation

In the mammalian brain, newly acquired memories depend on the hippocampus (HPC) for maintenance and recall, but over time, the neocortex takes over these functions, rendering memories HPC‐independent. The process responsible for this transformation is called systems memory consolidation. Reactivation of a well‐consolidated memory can trigger a temporary return to a HPC‐dependent state, a phenomenon known as systems memory reconsolidation. The neural mechanisms underlying systems memory consolidation and reconsolidation are not well understood. Here, we propose a neural model based on well‐documented mechanisms of synaptic plasticity and stability and describe a computational implementation that demonstrates the model's ability to account for a range of findings from the systems consolidation and reconsolidation literature. We derive several predictions from the computational model and suggest experiments that may test its validity.
Trust in Participatory Action Community Engaged Partnerships: Relationships and Historic Trauma Matter

University-community participatory action partnerships can be mutually beneficial. Universities often work alongside communities to establish new and innovative community-based programming and research that are intended to benefit communities from these efforts. However, mistrust has been found to be a major issue in creating and maintaining strong relationships. This paper will marry a model of trust that forms when partners exhibit relational capital, relational embeddedness, and transparency within the principles of trauma-informed care as established by the Substance Abuse Mental Health Services Administration (SAMHSA) (2014). A group of university researchers and community activists/organizers analyzed their work on a project to bring a community engaged participatory action design team intervention to develop and implement trauma-responsive care in an established transitional African American community located in a large urban Midwestern city. Through our analysis we identified three major reasons for mistrust: objectification of community members, lack of real change in the community, and lack of transparency. Additionally, we found that paying attention to power differentials between the university researchers and community partners is key. Major findings around best practices mirrored the SAMHSA trauma-informed care principles and included developing “not just trust but trusting relationships”, sharing “voice and choice” with all who seek to participate, understanding the historical trauma within the community, using cultural guides and long time seasoned community organizers to facilitate processes, “showing up” and being interested in the community beyond the research or intervention by finding a way to give back to the community beyond the project.
A code in the node: The use of a story schema in retrieval

Some characteristics of story schemata and their role in encoding and retrieval of stories are briefly described. Story schemata are described in terms of the story grammar outlined in Mandler and Johnson (1977). Using the rules of the grammar, canonical two‐episode stories were generated as well as versions whose surface structure violated the posited underlying structure by interleaving the events of the two episodes. Predictions were made concerning the quantity, quality, and temporal sequencing of recall for the standard and interleaved versions. Recall by second‐, fourth‐, sixth‐grade, and adult subjects was studied. Quantity of recall was less for the interleaved stories but more marked differences were found in the quality of recall; many more distortions and repetitions occurred in recall of interleaved stories. The most pronounced effects were found in sequencing of recall. Subjects hearing interleaved stories showed a strong tendency to recall stories in their canonical form rather than in the c.
Ideational meanings of science and interpersonal position of readers in science textbooks for basic level in Indonesia

This paper investigates the ideational meanings of science through the analyses of types and functions of the images used in science textbooks, the formality of the pictures, the genre of the texts used as the main passage, and the process types used. This paper also probes into the interpersonal meaning of science through the analysis of pronouns used to address the readers, the analysis of represented participants, including the existence or nonexistence of gaze, and the position of the images in relation to their interactive participants. The data for the study consisted of three randomly selected topics from science textbooks for grade 7,8 and 9 based on two different curricula used, namely KTSP 2006 and Kurikulum 2013. Reading images as proposed by Kress and van Leeuwen (1996; 2006) was used to analyze the visual images along with systemic functional linguistics (SFL) as proposed by Halliday (1994); Halliday and Matthiessen (2004) to analyze the verbal texts. The findings show that ideationally, the most dominant type of pictures used in the topics investigated is realistic pictures, pictures which represent human optical perception. In terms of the function of the pictures, analytical pictures, pictures which show the part-whole relationship, are dominantly used in the topics. Ideationally, the topics in the textbooks maintain the sameness of forms and colors of the scientific objects students study at schools as their real objects. Interpersonally, readers are positioned as the receivers of the message from persons who are more knowledgable, hence, more powerful than they are but, at the same time, approachable by the readers.
'Living from loan to loan' : tracing networks of gifts, debt and trade in the Mongolian borderlands

3 Impact statement: . 4 Acknowledgements: . 6 Note on transliteration: . 8 Note on anonymity: . 9 Table of contents: . 10 List of figures and charts: . 13 Introduction: The emergence of economic network capitalism in the Mongolian borderlands . 15 ‘Like wolves in the rain’ . 15 Part 1: Ethnographic journey . 19 Magtaal–An out-of-the-way place . 19 Research trajectory and methods . 22 Spy accusations—contesting my allegiance . 25 Anti-state narratives—contesting national allegiance . 29 A theory of Mongolian moral sentiments . 33 Part 2: Literature background . 39 The contemporary state and its breakdown . 39 Neoliberalism . 44 Chains and networks . 47 Part 3: Living from loan to loan . 50 Historical Mongolian networks . 50 Contemporary economic networks . 52 Illegality or debt . 56 The thesis structure . 58 Chapter 1: Prince Togtohtör as governance exemplar—anti-state politics and the failed politicians of the present . 61 Hierarchy as chiefly ideal in ovoo ritual . 63 Historical understanding of hierarchical obligation between prince and peoples . 66 To Van as moral exemplar . 67 To Van’s economic vision . 69 Echoes of history . 76 A growing consciousness of economic and political disenfranchisement . 77 Magtaal populism . 80
Can Brain Waves Really Tell If a Product Will Be Purchased? Inferring Consumer Preferences From Single-Item Brain Potentials

Recent research has shown that event-related brain potentials (ERPs) recorded while participants view lists of different consumer goods can be modulated by their preferences toward these products. However, it remains largely unknown whether ERP activity specific to a single consumer item can be informative about whether or not this item will be preferred in a shopping context. In this study, we examined whether single-item ERPs could reliably predict consumer preferences toward specific consumer goods. We recorded scalp EEG from 40 participants while they were viewing pictures of consumer goods and we subsequently asked them to indicate their preferences for each of these items. Replicating previous results, we found that ERP activity averaged over the six most preferred products was significantly differentiated from ERP activity averaged across the six least preferred products for three ERP components: The N200, the late positive potential (LPP) and positive slow waves (PSW). We also found that using single-item ERPs to infer behavioral preferences about specific consumer goods led to an overall predictive accuracy of 71%, although this figure varied according to which ERPs were targeted. Later positivities such as the LPP and PSW yielded relatively higher predictive accuracy rates than the frontal N200. Our results suggest that ERPs related to single consumer items can be relatively accurate predictors of behavioral preferences depending on which type of ERP effects are chosen by the researcher, and ultimately on the level of prediction errors that users choose to tolerate.
Impact of front-end non-idealities on bit error rate performance of WLAN-OFDM transceivers

New OFDM-based WLAN standards target wireless communications in the 5 GHz band for consumer multimedia applications. Given the high data rates with required low bit error rates, and given the nature of the OFDM signal, a conservative analysis of the front-end requirements lead to severe, over dimensioned specifications. Such a design would never meet this market, by necessity low-cost and low-power. To extract more optimal front-end specifications, we assess the BER performance of the complete WLAN-OFDM link. As a result, we first show that the transmitted symbols' word-length can be restricted to 8-bit and the normalized crest factor digitally limited at baseband to 4. Then we show that the power amplifier can operate with only 5.4 dB back-off between the average input power and the input-referred P/sub ldB/. Finally, we quantify in terms of implementation loss the influence of the I/Q imbalance and of the frequency synthesizer phase noise.
Empirical evidence on locus of control among owner and manager and its relation to success firms

locus of control, and show whether there is a significant correlation between the variable locus of control and the success of a company. The research would help to compare and know whether in the Mexican context, the variables which compose Spector's model of Locus of Control (1998) behave the same way as in the field assessed by the author. Fifty-eight owners and 52 managers of small and medium enterprises in the San Luis Potosi area were surveyed. The information was obtained through Spector's Locus of control questionnaire (1998). Independent two-sample t-test and Pearson correlation coefficient were utilized to analyze data. The findings allow us to say : the locus of control is not a variable that allows categorization of owner and manager. Also, this study allowed us to know that the owner locus of control contributes to the success of the SMEs. Even when the work locus of control is an attribute with no difference in both other-and owner-manager, it is beneficial in strengthening and developing an organizational culture with high ethical standards, because the managers, with a culture as it is, develop and strengthen over their locus of control.
In-Service Teachers’ Understanding on the Concept of Limits and Derivatives and the Way They Deliver the Concepts to Their High School Students

The aim of this study was to analyze the teachers’ understanding on the concept of limits and derivative and the way they deliver the subjects to their students. The study was divided into two main phases during two years of research. This research was conducted in 7 high schools vary from general, Islamic and occasional schools. The participants of the study were 20 in-service mathematics teachers from 7 high schools. Questioners were given to find out how teachers’ understanding on the concepts and how they organized their class. The teachers’ level of complexity on the subject was analyzed by Structure of the Observed Learning Outcome (SOLO) Taxonomy, and teachers’ class organizations was analyzed by assessing and classifying their responds written on the questioner sheets and discussion with the selected participants. Based on the data, it can be figured out that the most teachers’ position were on third level out of five level of SOLO Taxonomy. Data also told us that half of the teachers experienced the difficulties in teaching the concept due to their limitations on mastering subject. Data also showed that there is a relevance between teachers’ level of understanding and teachers’ ability in delivering subject to their students.
Knowledge, attitude and perception on contraceptives use among adolescents in Luwero District. (A case study of Kikube Parish)

v TABLE OF CONTENTS . vi LIST OF TABLES . ix LIST OF FIGURES . x LIST OF ABRREVIATIONS AND ACRONYMS . xi CHAPTER ONE: INTRODUCTION . 1 1.1 Background of the Study . 1 1.2 Statement of the problem . 2 1.3 Justification . 3 1.4 Objectives of the study. 4 1.4. 1 Main objective . 4 1.4. 2 Specific objectives . 4 1.5 Research questions . 4 1.6 Conceptual Framework . 5 1.7 Definition of key terms . 6 CHAPTER TWO: LITERATURE REVIEW . 7 2.
Probing the Bounds of Conventional Wisdom. A Comparison of Regression, Probit, and Discriminant Analysis*

The level of measurement of the dependent variable (nominal, ordinal, interval) crucially affects the selection of statistical techniques. Conventional wisdom further restricts the choice of an appropriate technique. In this Workshop paper, we compare three powerful statistical techniques appropriate for each of the levels of measurement and sharing, insofar as possible, a similar set of assumptions. The three techniques are ordinary least squares regression for intervally measured, probit for ordinally measured, and discriminant analysis for nominally measured dependent variables. The assumptions and uses of each technique are reviewed, and an example of the use of each in political research is presented. Discussions of the levels of measurement problem in political science frequently lead to one of two conclusions. On the one hand, "radicals" argue that the increased leverage obtained from using statistical procedures which assume that the dependent variable is measured on an interval scale outweighs the consequences of their application to nonintervally measured variables. On *These statistical evaluation procedures were initially explored in order to solve substantive problems that are only partly referred to in this paper. Further applications will be developed in subsequent reports. Part of the research reported herein was performed pursuant to a grant contract with the National Institute of Education, U.S. Department of Health, Education, and Welfare. Contractors undertaking such projects under Government sponsorship are encouraged to express freely their professional judgment in the conduct of the project. Points of view or opinions stated do not, therefore, necessarily represent official National Institute of Education position or policy.
Teaching style and learning in a quantitative classroom

Education research over the last few decades has focused on the debate over which classroom pedagogies best encourage learning: teacher-centred or student-centred. Although research appears to support the philosophy that student-centred teaching provides for better learning, the supporting research is frequently limited to observational studies or limited in experimental design. Despite this, the trend has been to encourage teachers to adopt a more student-centred approach both in the teaching of the course material and as a model for future teachers. A pilot study was conducted in an introductory university statistics course using a Latin Square Design to experimentally collect both quantitative and qualitative data pertaining to student performance. The purpose of this study was to examine the impact of teaching style on learning, assess these approaches in quantitative courses, and establish protocols for such studies using a statistically controlled design.
Usability of E-government mapping applications: lessons learned from the US National Atlas

ABSTRACT The purpose of this study is to assess user expectations of an E-government mapping application, the National Atlas, which displayed a broad range of thematic data. This paper reports the findings of a usability study of a federal E-government mapping application with 15 participants, which included 9 tasks and a survey. Participants’ experiences with other mapping applications via the Geoweb and location-based services made the tool appear outdated. Although participants understood the functionality of the application upon the completion of tasks, participants stated that they would be unlikely to use the tool unless prompted. As the Geospatial Web (Geoweb) grows in popularity and users’ expectations change, E-government mapping applications like the one in this study remain outmoded, static and require change to make open E-government geospatial data a reality for any novice user.
Robust stabilization for discrete-time Takagi-Sugeno fuzzy system based on N4SID models

Purpose Nonlinear systems identification from experimental data without any prior knowledge of the system parameters is a challenge in control and process diagnostic. It determines mathematical model parameters that are able to reproduce the dynamic behavior of a system. This paper aims to combine two fundamental research areas: MIMO state space system identification and nonlinear control system. This combination produces a technique that leads to robust stabilization of a nonlinear Takagi–Sugeno fuzzy system (T-S). Design/methodology/approach The first part of this paper describes the identification based on the Numerical algorithm for Subspace State Space System IDentification (N4SID). The second part, from the identified models of first part, explains how we use the interpolation of linear time invariants models to build a nonlinear multiple model system, T-S model. For demonstration purposes, conditions on stability and stabilization of discrete time, T-S model were discussed. Findings Stability analysis based on the quadratic Lyapunov function to simplify implementation was explained in this paper. The linear matrix inequalities technique obtained from the linearization of the bilinear matrix inequalities was computed. The suggested N4SID2 algorithm had the smallest error value compared to other algorithms for all estimated system matrices. Originality/value The stabilization of the closed-loop discrete time T-S system, using the improved parallel distributed compensation control law, was discussed to reconstruct the state from nonlinear Luenberger observers.
Variable Camber Compliant Wing - Design

This paper describes the design process and design validation of the US Air Force Research Laboratory developed Variable Camber Compliant Wing. The Variable Camber Compliant Wing was designed and fabricated based on compliant mechanisms and advanced manufacturing technologies, enabling a solution that is light weight, requires low power, and is low cost. The Air Force Research Laboratory demonstrates a new capability and technology for an active wing camber change without discrete control surfaces under realistic aerodynamic conditions. In this particular study, the wing was designed to target, but does not exactly resemble airfoil shapes between the NACA 2410 and NACA 8410, but the design is not only limited to these airfoils. The entire skin is seamless and continuous, constructed from a single piece of non-stretchable composite skin. The smooth elastic deformation of the Variable Camber Compliant Wing is obtained through the underlying compliant mechanism. 2D camber change is achieved by linear actuation to control both leading and trailing edge deflection. 3D shape change is also capable through camber variation along the span using a distributed actuation system. Proving the capability of a smooth 2D and 3D shape change would allow aircraft to significantly reduce fuel burn by continuously optimizing the wing L/D throughout the mission, as well as reduce airframe noise caused by holes and gaps existing on a conventional wing. Future aerodynamic applications and testing plans are discussed in this paper.