Miracle-dz/UniFAR-FTUs huggingface dataset:
Photography Analysis Study of Remote Images in Digital Cameras

Image processing algorithms are being developed for enrollment and correction of multiple adjacent images, channeling the stitched results to an image database for storage/retrieval adapted to the needs of users. The aim of this work is to facilitate the capture of high-resolution digital images of decorated surfaces in historical buildings. It will be possible to position the camera repeatedly to an accuracy of 1 mm, using laser positioning devices, with three degrees of freedom on top of the robotic mast, including 360° horizontal rotational movements for the capture of full panoramic images. This paper will refer to the issues of planning on-site photography, positioning of camera and illumination relative to the surface, control of the robotic apparatus, use of calibration charts, processing and database storage of images, and evaluation of the results. The image acquisition software chain and image processing applications including mosaicing techniques will be described in relation to the image capture of faraway surfaces including stained glass windows. Index Term-Photographic Techniques, Image Processing,
DRBOHLAV, D

This article concerns issues related to the irregular (illegal and quasi-legal) economic activities of migrants in the Czech Republic. Generally speaking, this is a very real and contradictory phenomenon, as it burdens the economies of developed destination countries, but also “enriches” them at the same time. The information and data presented here are the result of a Delphi Study (qualitative approach), which was based on analyzing the opinions and positions of selected Czech migration experts (obtained through structured group communication, and, at a much narrower conceptual level, by means of collecting expert opinions via distributed questionnaires interspersed with controlled feedback for individual rounds of the study). The research was performed in two rounds (from November 2005 through June 2006) with the participation of 32 (first round) and 23 (second round) experts from the academic, governmental, and non-governmental spheres. The study investigated the following topics: types and reasons of irregular economic activities carried out by migrants; basic characteristics of illegal migrants; an estimate of illegally economically active migrants; the future development of illegal economic activities by migrants; the impacts of illegal economic activities carried out by migrants; and the political goals and measures that will lead towards limiting this phenomenon. The overall results show that, even for migration experts, the investigated phenomenon, i.e., irregular economic activities on the part of migrants in the Czech Republic, is difficult to comprehend due to its “latency” and complexity, which is reflected in the fact that the opinions submitted by the experts were more dissident than concordant. On the other hand, the study unquestionably proves that a number of the aspects of this phenomenon are, in the opinion of Czech experts, identical to those with which we are familiar on the basis of experiences in other developed immigrant countries.
Numerical Simulation and Experimental Analysis of Microstructure of Magnetorheological Fluid

Magnetorheological fluid is a new type of smart material that is sensitive to magnetic fields and has controllable performance. It is widely regarded for its unique magnetorheological effect and good rheological properties. For materials, the microstructure determines its macroscopic properties. In order to better study its macroscopic properties, it is necessary to have a more comprehensive understanding and deep understanding of its microstructure. In this paper, the magnetization process of magnetorheological fluid is analyzed from a microscopic point of view. Based on Newton’s second law, the dynamic model of particle motion is established. The magnetic force, repulsive force, and viscous resistance of magnetic particles are analyzed. The finite difference numerical calculation method is used. The velocity-Verlet algorithm simulates the static microstructure chaining process of the magnetorheological fluid and the dynamic chaining process under shear force under different influencing factors. At the same time, a static observation device and a shear observation device were developed to observe the microstructure chaining morphology of magnetorheological fluid under different influencing factors, and to study the dynamic chaining law of magnetorheological fluid under the action of a shear force. Therefore, a reasonable contrast index is established, and the numerical simulation results are compared with the experimental observation results.
Feasibility of solving least squares prestack Kirchhoff migration using multigrid methods

The multigrid technique is a powerful method for solving a linear matrix equation; for finding the low frequency components of the solution as rapidly as the high frequency components. We investigate the feasibility of different approaches for using the multigrid method in solving the linear system of Kirchhoff Least-Squares Prestack Time Migration equation. To date, this study shows that the standard multigrid method is not able to solve the Kirchhoff Least-Squares Prestack Time Migration equation for at least two reasons. First, the kernel of the main problem, , is not a diagonally dominant matrix, therefore, Jacobi or Gauss-Seidel iteration, the standard iterative algorithms used in multigrid methods, are not effective. Second, matrices are too large and dense to be loaded in the memory of today’s computers. However, the performance of the Conjugate Gradient and Kaczmarz methods as multigrid solvers is examined for some synthetic data sets, including Marmousi, and results are shown. Convergence rate of the Conjugate Gradient is independent of the frequency content of the solution. Therefore, it does not converge more quickly with high frequency contents of the solution. Since Conjugate Gradient does not smoothe, it should not be considered for the multigrid iterative solver. Using the Conjugate Gradient as an iterative solver for the multigrid method may slightly reduce the number of iterations for the same rate of convergence in the Conjugate Gradient itself. However, it does not reduce the total computational cost.
A P ] 2 0 D ec 2 01 9 SPARSE SOLUTIONS FOR INVERSE PROBLEMS IN REPRODUCING KERNEL HILBERT SPACES

A linear operator in a Hilbert space defined through the form of Riesz representation naturally introduces a reproducing kernel Hilbert space structure over the range space. Such formulation, called H-HK formulation in this paper, possesses a builtin mechanism to solve some basic type problems in the formulation by using the basis method, that include identification of the range space, the inversion problem, and the Moore-Penrose pseudo(generalized) inversion problem. After a quick survey of the existing theory, the aim of the article is to establish connection between this formulation with sparse series representation, and in particular with one called pre-orthogonal adaptive Fourier decomposition (POAFD), the latter being one, most recent and well developed, with great efficiency and wide and deep connections with traditional analysis. Within the matching pursuit methodology the optimality of POAFD is theoretically guaranteed. In practice POAFD offers fast converging numerical solutions. AMS Classification: 42A16; 42A20; 41A30; 30B99; 34K28; 35A35
Pre-service Teachers ’ Self-efficacy : Improving Teacher Effectiveness in Inclusive Classrooms

The two patterns suggested above should be taken as a general guide for preparing IEPs for each student and assigning students in group activities within a multi-grade setting in the classroom. These are not meant to be taken rigidly, because the aim in a special school should be to individualize instruction and teacher-student interaction as much as possible and allow as much flexibility as possible to make this happen.
Applications of Hyperspectral Imaging to Geothermal Drill Core and Cuttings: Case Studies from Nevada, Western USA

Infrared spectroscopy is effective for analysing geologic materials because most rock-forming minerals have absorption features in the short-wave infrared (1000-2500 nm, SWIR) and long-wave infrared (2.5-25 μm, LWIR). Applied to drill core or cuttings samples, infrared spectroscopy is useful for characterising the lithologies and minerals encountered in geothermal wells. The type and distribution of hydrothermal alteration mineralogy within a well provides information about past temperatures, field hydrology, and rock physical properties. In this study, we apply advances in hyperspectral imaging technology to create high-resolution mineral maps of geothermal drill core and cuttings samples to characterise reservoir lithologies and alteration assemblages. The primary instrument used in this study is operated by TerraCore, and is equipped with FENIX VNIR-SWIR (500-2500 nm) and OWL LWIR (7.6-11.9 μm) spectral cameras that have a pixel size of 1.2 mm, as well as an RGB camera, to create a high resolution (0.12 mm pixel size) image of the same drill core or cuttings sample. Hyperspectral imaging allows for rapid analyses with minimal sample preparation and allows for the evaluation of the spatial relationships of alteration minerals within samples, with depth, and between wells at higher spatial resolutions than typically applied to geothermal systems. We investigate two field sites from Nevada, western USA: the Tungsten Mountain geothermal field, operated by Ormat Nevada, Inc., and the Fallon FORGE Engineered Geothermal System (EGS) site. These two locations represent contrasting geothermal endmembers: an active hydrothermal system (Tungsten Mountain, currently with 37 MWe installed capacity) and low permeability, conductive geothermal system (the Fallon FORGE EGS site). At both locations, we analyse samples from several wells in the 300 to 2800 m depth range and use infrared spectroscopy to characterise the distribution of minerals at various scales. Comparison of these new hyperspectral data with existing datasets (e.g. structural, stratigraphic, geophysical, mineralogical, hydrologic, temperature) reveals new insights on the relationship of hydrothermal alteration to reservoir properties, with implications for geothermal reservoir characterisation, and hydrothermal alteration history.
A Thermal Simulation Model for Laser-Assisted Milling

Laser-assisted milling represents an innovative method to realize rough machining of hard-to-machine materials with less tool wear or an increased material removal rate. This paper describes experiments and simulations of locally heating the material with laser radiation to achieve a controlled heat impact. A simulation model is established using parameter variation of available material parameters. The influence of these parameters on the transient temperature field in the material is analyzed and an interrelation of laser and milling parameters is deduced.
Ehrhardt, D. A., & Allen, M. S. (2017). Nonlinear Reduced Order Modeling of a Curved Axi-symmetric Perforated Plate: Comparison with Experiments

of a Curved Axi-symmetric Perforated Plate: Comparison with Experiments. In J. De Clerck, & D. S. Epp (Eds.), Rotating Machinery, Hybrid Test Methods, Vibro-Acoustics & Laser Vibrometry: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016 (Vol. 8, pp. 437-445). (Conference Proceedings of the Society for Experimental Mechanics Series). Springer. https://doi.org/10.1007/978-3-319-30084-9_40
Mastering Classroom Management- A Problem Based Learning Approach

The teacher education programme – B. Ed. is a major teacher preparation course in the country. It prepares the teachers to teach at secondary and higher secondary schools. Even though the programme offers courses in Methodology of Teaching and Pedagogy of Subjects, an analysis of the syllabi of the various universities across the nation reveals that there is no adequate theory or practical to master the skill of classroom management incorporated into any of the courses associated with B. Ed. Programme. The theory about classroom management is limited to certain thumb rules dictated by the teacher educators before the beginning of practice-teaching internships. In the real context teacher face many difficulties. These may be related to problems in the routine of class management, problems in securing pupils cooperation, problems in directing pupils learning, problems in the presentation of subject matter, problems arising from pupils’ personal traits, problems arising from teachers’ personal traits etc. Experienced teachers often can deal these difficulties more effectively, but often it is experienced that novice teachers could not handle these problems effectively. Therefore teacher training programme should provide a learning environment related with case problems besides the pedagogical theories and guidelines. Problem Based Learning environment in which real context problems are treated as case problems helps novices to construct mental representation of a problem by analyzing the different kind of elements of a problem. The novice teacher can be a part of the whole procedure and it gives several types of experience to mould the carrier. In the present paper, investigators have designed a Problem Based learning approach in the field of teacher education.
Bombing to Lose? Airpower and the Dynamics of Coercion in Counterinsurgency Wars∗

Are airstrikes an effective tool of coercion against insurgent organizations? Despite the question’s historical and contemporary relevance, we have few dedicated studies, and even less consensus, about airpower’s effectiveness in counterinsurgency wars. I draw on newly declassified United States Air Force records of nearly 23,000 airstrikes and non-lethal shows of force in Afghanistan (2006-11) to examine how insurgents respond to actual and threatened coercion. A new form of dynamic matching is adopted to facilitate village level causal inference over variable temporal and spatial windows. Several findings emerge: both airstrikes and shows of force are associated with increased insurgent attacks; these effects are highly localized; and civilian casualties appear to play little role in driving these attacks. Instead, these air operations create opportunities for insurgents to build and maintain reputations for resolve by quickly responding to counterinsurgent actions with their own violence.
THE CEBAF INJECTION LINE AS STERN-GERLACH POLARIMETER

The historical Stern-Gerlach apparatus used a uniform magnetic field (to orient the spins) with quadrupole magnetic field superimposed (to deflect opposite spins oppositely) and a neutral, somewhat mono-energetic, unpolarized, neutral atomic beam of spin 1/2 particles. For highlymonochromatic, already-polarized beams produced by Jefferson Lab electron guns, the uniform magnetic field has become superfluous, and every quadrupole in the injection line produces polarization-dependent S-G deflection. The absence of constant magnetic field on the unperturbed electron orbit has the further effect of guaranteeing zero electric field at the electron’s instantaneous position in its own rest frame.
Fatores relacionados com a mortalidade neonatal em uma Unidade de Terapia Intensiva neonatal na região Sul do Brasil

Introduction: Infant mortality is an important health indicator that is universally used to evaluate the quality of health of a population and indirectly the development of a country. Despite the substantial decrease in infant mortality in recent decades, the reduction of neonatal deaths is still a great challenge to health promoters because it accounts for two thirds of the infant mortality in the studied region. The aim of this research was to determine the neonatal mortality rate and its related factors. Methods: This was a cohort study of all newborns with more than 500g or 20 weeks of gestation admitted to the Neonatal Intensive Care Unit (NICU) from Jan 1 to Dec 31, 2006. Results: Of the 172 infants admitted to the NICU, 29 died in the first month of life, thus determining a neonatal mortality rate of 16.9%. Twenty of these 29 deaths occurred in the first week of life (69.2%) and 9 between the first and fourth weeks. The sample consisted of 75% premature infants; 54% infants with birth weight less than 2500g, 7% with restricted intrauterine growth, 62.1% born by surgery, 20.3% with Apgar scores under 7 at the fifth minute of life, 30.7% of households received less than a minimum wage, and 63.4% of mothers had not completed elementary school. The main factors associated with mortality were: birth weight, gestational age, birth conditions, maternal age, and socioeconomic status. Conclusion: The control of mortality-related factors may change the prognosis of this group of patients.
Convexity of the Exercise Boundary of the American-style Put

This paper studies the parabolic free boundary problem arising from pricing American-style put options on an asset whose index follows a timehomogeneous diffusion process. The time-homogeneous diffusion process in this paper includes the geometric Brownian motion process, the CEV process, the mean-reverting Gaussian process or the Vasicek model, and the mean-reverting square root process or the CIR model. The contributions are to provide rigorous proofs of following facts. The value of an American-style put option increases with an increase in the time-tomaturity and decreases with an increase in the underlying asset index. The early exercise boundary is a strictly decreasing convex function of the time-to-maturity under the given conditions.
On #agony and #ecstasy: Potential and pitfalls of linguistic sentiment analysis

With the ready availability of social media data, researchers are increasingly undertaking large-scale studies of online emotion. Many of these studies employ sentiment analysis—automatically inferring emotional information from text written on blogs, status updates, or tweets. We compare the momentary, daily, and day-of-week patterns of affect data extracted from Twitter to affect data generated by directly polling a demographically representative sample. We highlight striking inconsistencies, casting doubt on the direct application of sentiment analysis tools to measure population-level well-being. Whereas sentiment analysis tools appear to capture negative affect reasonably accurately, the same tools produce estimates of positive affect that are uncorrelated with direct measurement, because the frequency of positive words is not a reliable indicator of positive affect. As a proof of concept, we use a simple feature selection algorithm to propose a new lexicon of words to enable accurate inference about population-level positive emotion as well as negative emotion.
Grammar and Writing Evaluation Protocol

Englicious is an approach to grammar teaching underpinned by linguistics research that is supported by an extensive set of website resources (www.englicious.org). The approach aims to make learning about grammar fun and appealing, and stimulates pupils to learn about grammar in a hands-on way. For teachers the website provides a wide variety of innovative teaching materials, including lesson plans, interactive exercises, projects, videos, a glossary, etc., as well as background materials to improve their understanding of grammar. It helps teachers deliver the National Curriculum requirements for English grammar, and to prepare their pupils for the Grammar, Punctuation and Spelling tests which are optional at KS1 and statutory at KS2. What makes Englicious unique is that it is informed by modern linguistics (Aarts 2011, Aarts, Mehl and Wallis, 2016; Aarts and Smith-Dennis, 2018), and makes full use of digital technologies such as tablets, apps and interactive whiteboards. Currently over 6,500 teachers have signed up to use Englicious. The resources on Englicious are tailored for particular year groups and address specific grammatical topics. For example, in order to teach pupils that adverbs (part of the KS1 National Curriculum specification for Year 2) can be moved around in sentences Englicious offers a lesson plan with an associated interactive activity that teaches the idea of adverb mobility in a playful way. (See http://bit.ly/2sP9DaQ and the link to the activity.)
DISENTANGLING CRATERING PROCESSES USING NON-TRADITIONAL ISOTOPE RATIOS ON CORE M0077A OF THE IODP-ICDP EXPEDITION 364 IN THE CHICXULUB IMPACT STRUCTURE

CORE M0077A OF THE IODP-ICDP EXPEDITION 364 IN THE CHICXULUB IMPACT STRUCTURE. T. Déhais, P. Kaskes, S. J. de Graaff, S. M. Chernonozhkin, V. Debaille, F. Vanhaecke Ph. Claeys, and S. Goderis Analytical, Environmental and Geo-Chemistry, Vrije Universiteit Brussel, Brussels, Belgium (thomas.dehais@vub.be), Laboratoire G-Time, Université Libre de Bruxelles, Brussels, Belgium, Atomic & Mass Spectrometry, Ghent University, Ghent, Belgium.
Dengue and malaria prevalence in Bangladesh

The Institute of Epidemiology Disease Control and Research (IEDCR) and the Centre for Communicable Diseases, icddr,b conducted a hospital-based study measuring the prevalence of dengue and malaria in six districts in Bangladesh from 2008 to 2009. The study team confirmed four malaria and 69 ELISA positive dengue cases. Dengue was equally prevalent in urban (51%) and rural areas (49%) and most common (19%) during the post monsoon season. Dengue causes more febrile illness in Bangladesh than malaria throughout the year. Without laboratory confirmation, anti-malarial drugs should not be prescribed. Inside
Actualization Pedagogical Content Knowledge (PCK) of Novice Teachers in Learning Practice at Systems of Linear Equations of Two Variables (SPLDV)

Pedagogical Content Knowledge (PCK) is a blend of content knowledge and pedagogical knowledge that teachers use to convey certain material to make it more easily understood by students. PCK components include: knowledge of teaching, knowledge of students, and content knowledge. Research of PCK on previous study more focus on the knowledge of teachers and little has been linked with learning practice of teacher in the classroom. Therefore, this study will analyze the PCK and actualization in classroom practice. This study aims to investigate the description of PCK and learning practice of novice teachers who teach mathematics at SPLDV material. PCK and learning practices comparison is based on the position of teacher PCK level compared to the level of learning practices. The approach used in this research is descriptive qualitative approach. The participants in this study were two novice teachers (teaching experience less than 3 years), with details of the first participant is already certified novice teachers through professional education of teachers (PPG) and the second participant of novice teachers who have not been certified. The results of this research in general are: (1) the PCK and learning practice level of first participant are constant; (2) the PCK and learning practice level of second participant are changed.