Miracle-dz/UniFAR-FTUs huggingface dataset:
Development and Validation of a Survey Instrument Targeting Teachers’ Perceptions of the Scope of Engineering

Around the world, pre-college teachers are increasingly being called upon to address engineering, often as part of science instruction. Teachers are typically tasked with engaging students in authentic engineering design activities to promote students’ development of design practices while deepening their knowledge of relevant science concepts. Planning and implementing engineering experiences that authentically reflect the field require that teachers hold accurate perceptions of what engineering is, how it works, and how it is related to yet distinct from science. As teacher education and research efforts in this area grow, there is a need for high-quality instruments that elicit key aspects of how teachers think about engineering. However, few instruments are currently available, and each has significant limitations. This study presents a new instrument, the Scope of Engineering Survey, that addresses a critical dimension of teachers’ perceptions of engineering. The ‘‘scope of engineering’’ refers to the kinds of projects and activities that do and do not fall under the umbrella of engineering work. Individuals who hold accurate views on the scope of engineering understand the breadth of engineering work, but can also differentiate engineering work from that of technicians or scientists. This is essential for teachers, because holding accurate views on the scope of engineering places them in a far better position to design and implement authentic engineering activities in their classrooms. This study describes how the Scope of Engineering Survey was developed, provides evidence of the validity and reliability of the instrument, and gives recommendations for its future uses. Results from a large-scale field test are reported and baseline statistics are provided for key survey measures.
Neurotrophic Ulcer Complicated By Stromal Melting

Case Report Neurotrophic keratitis results from partial or complete denervation of the cornea from various origins, including viral. We report the case of a monophthalmic patient, followed for dry eyes. She was pseudophakic patient who presented, after a cataract surgery, a neurotrophic ulcer complicated by stromal melting.
Europäische Geldpolitik

Das erfolgreiche Lehrbuch nun in 6. Auflage In bewährter Weise führen die Autoren dieses Standardwerks in die Theorie und Praxis der europäischen Geldpolitik ein. Dabei spannen sie den Bogen von der Entstehung des Eurosystem über die praktische Geldpolitik und die Transmission geldpolitischer Impulse bis hin zu möglichen Störungen der Geldpolitik durch die Fiskal-, Lohn- und Wechselkurspolitik. Die vollständig neu bearbeitete 6. Auflage geht nicht nur ausführlich auf die Auswirkungen der Finanz-, der Wirtschafts- und der europäischen Staatsschuldenkrise auf die Geldpolitik der Europäischen Zentralbank ein, sondern berücksichtigt auch neuere geldtheoretische und geldpolitische Erkenntnisse sowie die institutionellen Veränderungen des Eurosystems. Auch Aspekte der Behavioral Economics werden herangezogen. Das Buch richtet sich an Studierende der Wirtschaftswissenschaften und an Praktiker der Finanzwirtschaft sowie der Wirtschafts- und Finanzpolitik.
Handbuch Schule

Das Handbuch Schule "Theorie - Organisation - Entwicklung" dient der raschen und kompakten Information über den Forschungsstand der Disziplin Schulpädagogik. Das Handbuch enthält sowohl die Betrachtung der Institution Schule in ihrer historischen Genese, die Erörterung grundlegender Fragestellungen als auch die Systematisierung jüngerer Entwicklungen. Der einschlägige nationale und internationale Diskussions- und Forschungsstand wird referiert. Wissen, Probleme und Fachdiskussion zu zentralen Themenbereichen und ihrer wissenschaftlichen Bearbeitung werden in voller thematischer Breite von namhaften Expertinnen und Experten dargestellt. Das Handbuch Schule ist nutzbar als Basislektüre, als reichhaltige Informations- und Systematisierungsquelle sowie zur Vertiefung in Spezialfragen. Weiterführende Literaturhinweise und ein umfangreiches Sachregister bieten eine schnelle Orientierung. Das Handbuch Schule richtet sich nicht nur an Erziehungswissenschaftler und Schulpädagogen, es ist ebenso als Nachschlagewerk für Studierende, Referendare und Ausbildende in der ersten und zweiten Phase der Lehrerbildung sowie als Kompendium für interessierte Lehrkräfte geeignet.
Application and evaluation of packaging postponement strategy to boost supply chain responsiveness: a case study

The purpose of this study is to demonstrate how packaging postponement can be effectively leveraged in a dynamically changing diverse retail market where responsiveness is key. The study also guides about the empirical evaluation of how packaging postponement affects the performance in the sanitary pads supply chain by considering operating measures. The focal company belongs to the Indian Fast Moving Consumer Goods sector, hygiene products category. It examines the measures that are critical to a responsive supply chain and presents a comparative analysis of selected measures before and after implementation. The findings illustrate that the packaging postponement not only improves competitive advantage but also significantly contributes to improving product proliferation and supply chain responsiveness. The study provides understanding of drivers and obstacles for packaging postponement strategy with operational insights about ‘how-to’ implement. Most of modelling-based research studies justify the adoption of postponement through savings in inventory only and underplay on other operating measures. While justifying, studies emphasise ‘form’/manufacturing aspects and underestimate the packaging aspects of postponement. This paper addresses these gap areas by systematically highlighting prerequisites and demonstrates the benefits of adopting a packaging strategy to handle variety and responsiveness in an emerging economy.
Tensegric-Modeling-Based Soft Tissue Deformation for Shaping-Undergarments

AbstractSoft tissue deformation based on tensegric modeling is proposed. This modeling is especially applicable for human females to reform/alter their body shape using tailor-made undergarments. When a digitized mesh data of customer’s body surface is provided, a tensegric model is generated, simulating a physically-based deformation of the body shape. The tensegric model is based on a sparse triangular mesh, which approximates body shape. The constraints on the deformation are the constant volume of the model, and the length of specific lines lying on the model’s surface, which correlates directly with the size of the undergarments. After the tensegric model is deformed by those constraints, the deformed body shape is calculated by t-FFD (Free Form Deformation by using Triangular mesh). This process operates in real-time in a standard PC environment, and aids customers appreciate the physical effects of the shaping undergarment.
Diagnóstico de fallas estatóricas en motores de inducción de jaula de ardilla por medio de la corriente de secuencia negativa

This paper presents a mathematical model to obtain a failure indicator of stator faults based on the negative sequence component of the electric current. The model can be used in online diagnosis systems to separate the effects of voltage unbalance factor and the constructive asymmetries of the machine. Results of the application of the model were validated trough laboratory tests made into a specially modified motor and results were applied to success diagnosis of two motors of higher electrical power. As a main result of the work, a low computational model was obtained to diagnose a quick evolution failure that can evolve quickly to a thermal collapse of the stator winding with consequent repair costs.
Electronic Throttle Valve Modeling Considering Nonlinearity of Electrical and Mechanical Parameters Based on Experiments

In this article, the nonlinear parameters of a throttle valve were analyzed and calculated to predict its dynamic characteristics. A mathematical model considering nonlinear parameters is employed to improve the control performance over the throttle valve. Electrical nonlinearity is caused by the brush and commutator. A brush contact resistance is generated due to the contact between the brush and commutator. The brush contact resistance is affected by the rotor speed and the input current. Furthermore, mechanical nonlinearity is caused by the limp-home mode in the spring. The torque produced by the spring varies with the valve angle. As it is difficult to estimate nonlinear parameters accurately, electrical and mechanical parameters were calculated experimentally. In addition, a block diagram considering the nonlinearity of the electrical and mechanical parameters was developed. Finally, the test and simulation results were compared to validate the estimated nonlinear parameters.
Adaptive digital beamforming for phased array ultrasound imaging (medical US imaging)

A phase aberration correction technique with low computational complexity is proposed. The technique is based on the minimization of the sum of absolute differences between the sampled echo signals received by the adjacent array elements. It can be successfully applied for correction of aberration patterns in the presence of point reflector and random scatterers. A set of algorithms for the application of the correction technique is investigated. The simulation results for the performance analysis of these algorithms are presented. <<ETX>>
Distributed Synchronization of Delayed Neural Networks: Delay-Dependent Hybrid Impulsive Control

In this paper, synchronization of coupled neural networks is investigated via distributed delayed impulsive control, and system delays, coupling delays and impulsive delays are simultaneously considered. Firstly, the concept of average delayed impulsive weight is proposed, which allows impulsive weights and impulsive delays to be integrated into just one expression, and afterward hybrid impulses can be augmented. Then, this paper extends the comparison principle by taking delayed impulses into account, where the limitation that system delays exist between two consecutive impulsive instants is released. Without any restriction on time delays, sufficient conditions of global exponential synchronization for coupled neural networks are obtained. Additionally, the corresponding convergence rate is estimated. It indicates that the networks can still achieve synchronization even if the impulses work negatively, or may destroy synchronization. Finally, three typical networks are investigated to verify the availability of the control schemes.
Application of Digital Photogrammetry in Trenchless Engineering

This paper introduces the application of photogrammetric methods in trenchless engineering applications including construction job site monitoring and three-dimensional underground utility mapping. Accurate three-dimensional representations of buildings, roads, and other utilities on the job site can be easily obtained through the processing of digital photographs using photogrammetric software. This provides an avenue for assisting contractors in quality control of their construction processes. The existence of telecommunication, electrical, cable, water, wastewater, and gas pipelines provide potential strike hazards for trenchless methods such as horizontal directional drilling. Subsequently, it is imperative that accurate as-built maps be generated. This paper demonstrates the use of digital photogrammetric methods through field trail of mapping and monitoring applications.
Students' perceptions of service quality in higher education

This study aims to diagnose the applicability of the perceived service quality measurement scale to students; and to diagnose the student satisfaction level in higher education. It attempts to diagnose the perceived service quality of administrative units such as services provided by the registrar, library, faculty/school offices, rector office, dormitories, sports and health centre. Descriptive and causal analysis is employed. Reliability and dimensionality of the scale is tested. Results indicate that the nature of perceived service quality measurement instrument is found to be two-dimensional: tangibles and intangibles for higher education services. The results and implications are discussed in detail.
Experimental Results Of A Polarization Maintaining Fiber To LiNbO3 Channel Waveguide Connection At 820 Nm

Ti:LiNb03 channel waveguide devices have become available from a number of sources recently. These devices must be terminated with single mode fiber for use in the target system. System requirements quite often dictate the need for use of polarization maintaining fiber. This paper discusses the experimental results of single mode polarization maintaining fiber connections at the . 82 um wavelength. Channel waveguides and y-branch waveguides were terminated and tested for changes in throughput over a temperature range of -40 to +800C. Polarization crosstalk over a -20 to +60°C range also tested.
SHARPKUNGFU TEAM DESCRIPTION 2006

This report is a short description of the four-legged robot soccer team sharPKUngfu with the speciflcation of our work in 2006. This year, our sharPKUngfu Team participated in the Technical Challenge of RoboCup 2006. In this event, our Medal Awarding challenge got the 8th place in the Open Challenge and 16th in the sum. In October, we got the champion in RoboCup China Open 2006. We focus our research on collaborative localization in dynamic environment, quadrupedal gaits optimization and intelligent behaviors. To improve robot self-localization under more natural conditions, we create an experience-based collaborative localization approach to help robot localize under more natural conditions. Moreover, a Particle Swarm Optimization approach to generate high-speed quadrupedal gaits is proposed. In behavior module, our dynamic limit cycle based approach for obstacle avoidance is shown in detail. To perform better under the rule 2006, we create our own set of special actions and correlative strategies.
Research of Filtering Based on Wavelet De-Noising Method for Revolution-Modulation North-Finder

In order to improve the precision of revolution-modulation north-finder, a filtering method based on wavelet de-noising method is studied. The continuous revolution in constant rate is used to modulate the output signals of gyroscopes and accelerometers, and the signals are demodulated by using the integrated method. The filtering method based on wavelet de-noising method is used to filter the signals of gyroscopes. The disturbance is filtered by maximum modulus, whose Lipschitz exponent is bigger than zero. The mean value of non-maximum modulus adjacent to the selected maximum modulus is used to alternate the maximum value. The noise is filtered by soft-thresholding, whose Lipschitz exponent is smaller than zero. The experimental results show the filtering method based on wavelet de-noising method effectively restrains the effect of random drift of gyroscopes and disturbance of system, and improves the precision of the revolution-modulation north-finder.
Analysis Relates to the Influence of Investment Policy, Organizational Strategy and Company Performance towards Corporate Social Responsibility (Study: Manufacturing Sector that Registered and Active on the IDX during 2014-2016)

This research purpose to further investigate the role of Investment Policy, Organizational Strategy and Company Performance towards Corporate Social Responsibility. This research took 21 companies on manufacturing sector that still active on the IDX during 2014-2016 as research studied. This research were validate the hypothesis which stated that Investment Policy, Organizational Strategy and Company Performance had a partially or wholly affects the Corporate Social Responsibility. Through multiple regression analysis, it was found that the Investment Policy and Company Performance statistically had a positive impact substantially on Corporate Social Responsibility, but not to Organizational Strategy which did not have a substantial impact on Corporate Social Responsibility. Thus, Investment Policy and Company Performance served as the main determinants of corporate social responsibility disclosure in the manufacturing sector in Indonesia.
Design of a 2-DOF 8R Linkage for Transformable Hypar Structure

Double curved geometries including hyperbolicparaboloids (hypars) have become a trend in contemporary architecture. However, most of the constructed architectural examples of the hypars are static and cannot offer any form variability. In this paper, a 2-DOF 8 R linkage mechanism is introduced to buildtransformable hypar structures. It is inspired from the basic design principles of Bennett linkage. By its distinctive connection details and additional links, this novel mechanism can change its form fromplanar geometries to various hypars. The paper begins with the brief summary of the applications of hypar structures in architecture. Secondly, main principles and deficiencies of the Bennett linkage are presented. According to these deficiencies, structural synthesis of the novel mechanism is considered. Finally, advantages and potential uses of the proposed novel mechanism are explained.
Collaborative mechanism of project management based on complex system theory

Although it is arguable that humans have been studying complex systems for thousands of years, the modern scientific study of complex systems is relatively young in comparison to conventional fields of science with simple system assumptions, such as physics and chemistry. The history of the scientific study of these systems follows several different research trends. The project management community is actively demonstrating substantial interest in the development of viable methods to assess and improve project management maturity. There is little empirical evidence on the benefits of deploying a project management office (PMO) and/or conducting project reviews. The increasing complexity of exploratory activities in pharmaceutical innovation makes less likely that a project can stand alone. Project managers not only resort to in-house innovation but also external sources to propel a central project. This paper introduces the notion of a quality function for individual tasks and uses the functional form of the bivariate normal, to model quality at the task level. Using real data from two case studies, a translation agency and a software development company, the quality function is specified and incorporated into a mathematical programming model that allows quality to be explicitly considered in project planning and scheduling. An alternative model formulation leads to the creation of quality level curves that enable managers to evaluate the nonlinear tradeoffs between quality, time, and cost for each of the example projects. The results of these analyses lead to specific decisions about the planned values for these three fundamental dimensions at the task level and provide insights for project planning and scheduling that can be gained through improved understanding of the choices and tradeoffs.
An Inversion of Site Response and Medium Parameters of Shaanxi Area Using Records of the Wenchuan Aftershocks

In this paper, Lg wave records of 43 strong aftershocks in the northern segment of Wenchuan aftershock area recorded by 25 stations of Shaanxi digital network are used. Based on spectral ratio method, a joint inversion method is used to obtain parameters of Lg wave attenuation and site response. In the range of 0.5~7 Hz, the Lg wave attenuation coefficient corresponding to UD, EW and NS components are γ(f)=0.0045f0. 327, γ(f)=0.0034f0. 417 and γ(f)=0.0036f0. 393, respectively. The results show that all stations have site effects lower than 5 in the low frequency, the stations in the Weihe basin as Lint, Jyat and etc do not show obvious amplification, but the stations in the Qinling Mountain show obvious amplification in the high frequencies. At the same time, the results mentioned above are also compared with the that retrieved from small earthquakes.
CONDUCTAS OBESOGÉNICAS RELACIONADAS AL ESTADO NUTRICIONAL EN TIEMPOS DE COVID-19 DE LOS ESTUDIANTES DE ENFERMERÍA DE LA UNIVERSIDAD NACIONAL SAN LUIS GONZAGA ICA 2019

Objetivo: Determinar la relación entre las conductas obesogénicas y el estado nutricional en tiempos de Covid 19 en los estudiantes de enfermería de la Universidad Nacional San Luis Gonzaga Ica 2019. Materiales y Métodos: Investigación correlacional de corte transversal, donde se tomó en cuenta una muestra de 215 estudiantes, cantidad obtenida por muestreo probabilístico estratificado, a quienes se les aplicó un cuestionario virtual. Resultados: El 64% de estudiantes tienen conductas obesogénicas, el 55% presenta conductas alimentarias no saludables, el 72% conductas sedentarias y 8% hábitos tóxicos. El estado nutricional reflejó una normalidad de 60%; sobrepeso 29%; obesidad 9% y delgadez 2%; en tanto que, el perímetro abdominal (PA) determina riesgo de cardiovascular muy alto en el 23%; riesgo alto 24% y bajo 53%. Conclusiones: Se demostró que existe relación entre las conductas obesogénicas y el IMC (X2 = 9.36; p,001) así como con el PA (X2 = 19.57; p,000)
Pulse compression and dispersion compensation for high- resolution Lamb wave inspection

The dispersion of ultrasonic guided waves causes the energy of a signal to spread out in space and time as it propagates, which decreases the performance for damage detection significantly. A lot of signal processing methods have been proposed to reduce the effect of dispersion for this reason. In this paper, with the aim of developing an efficient methodology for high resolution Lamb wave inspection, a pulse compression and dispersion compensation method is established. In this method, broadband excitation and pulse compression technique are introduced to reconstruct the transform function with a high SNR. Subsequently, a scheme is established to alleviate the dispersion effects by performing compensation on the original narrowband excitation signals, and thus the time duration of received wave packet can be compressed during the extracting process. Finally, Numerical simulation and experiment are carried on aluminum specimens to investigate the behavior of the proposed method.
Prolonged blockade of the cervical sympathetic nerve by stellate ganglion block accelerates therapeutic efficacy in trigeminal neuropathy.

PURPOSE Stellate ganglion block (SGB) is effective in treating head and neck pain and neuropathic diseases by increasing tissue blood flow through its sympatholytic effect. This study aimed to investigate the relationship between duration of cervical sympathetic nerve block by SGB and its therapeutic efficacy against trigeminal neuropathy after orthognathic surgery. METHODS Twenty-eight patients with trigeminal neuropathy were randomly assigned to two groups (mepivacaine and levobupivacaine) according to the drug used for SGB. Increased blood flow, which is a symptom of sympathetic blockade, was recorded for 180 min after SGB. Current perception threshold, warm or cool detection threshold, and tactile detection threshold were measured preoperatively, postoperatively, on day 10 after initiation of SGB, and 3 months postoperatively to compare therapeutic efficacy between the groups. RESULTS The levobupivacaine group had a significantly longer duration of increased blood flow compared with the mepivacaine group. Values of current perception threshold, warm and cool detection threshold, and tactile detection threshold significantly improved in the levobupivacaine group on day 10 after initiation of SGB and 3 months postoperatively. CONCLUSION A prolonged increase in blood flow due to long-term sympatholytic effects accelerates the therapeutic efficacy of SGB in trigeminal neuropathy.