Miracle-dz/UniFAR-FTUs huggingface dataset:
High-Precision and Fixed-Point Discrete Cosine Transform without Multiplications

Discrete Cosine transform (DCT) is an important tool in digital signal processing. In this paper, based on our previous work of performing DCT via linear sums of discrete moments, we have made development to eliminate multiplications in discrete Cosine transforms by performing appropriate bit operations and shift in binary system, which can be implemented by integer additions of fixed points. An efficient and regular systolic array is designed to implement it, and the complexity analysis is also given. Different to other fast Cosine transforms, our algorithm can deal with arbitrary length signals and get high precision. The approach is also applicable to multi-dimensional DCT and DCT inverses.
Pedestrian Detection for Transformer Substation Based on Gaussian Mixture Model and YOLO

Safety is a core requirement of the transformer substation where is dangerous due to high voltage. It requires to detect pedestrians efficiently based on the surveillance video near the substation to ensure the safety of the pedestrian and the device. This paper presents a new method of pedestrian detection for transformer substation based on Gaussian Mixture Model (GMM) and YOLO. We use GMM to model the background and detect the pedestrians preliminarily, at the same time, YOLO, a kind of detection method based on convolution neural network (CNN), is also applied for pedestrian detection. Through combining the two results with different weights, the network outputs a better detection result. Our extensive experiments show that the work reaches 20% higher than the single method.
Empirical Analysis of Factors Influencing China's Stock Market

Stock market is an important segment of the financial system of a country. This paper empirically studies the relationship between China's stock market after the equity division reform and macroeconomic factors in the background of international financial market integration, using methodology of VAR to incorporate the influence of the international stock market into the model, together with the impulse response functions analysis and variance decomposition analysis. The result demonstrates that China's stock market volatility is influenced by domestic macroeconomic factors to a greater extent, the influence of the comovement effect of international stock markets is still limited.
Analysis and design of a position observer with resistance adaptation for synchronous reluctance motor drives

A back-EMF-based reduced-order position observer with stator-resistance adaptation is analyzed for motion-sensorless synchronous reluctance motor drives. Analytical equations for steady-state estimation errors and stability conditions are derived (with and without resistance adaptation), taking into account errors in the parameter estimates. The effect of the observer gain on the noise reduction is studied by means of eigenvector analysis. A robust gain selection is proposed, which maximizes the allowed uncertainties in the parameter estimates. The proposed observer design is experimentally evaluated using a 6.7-kW synchronous reluctance motor drive; stable operation is demonstrated at low speeds under various parameter errors.
Identification of Sensitive Information Based on Improved Naive Bayesian Classifier

In order to purify the Internet environment, identify the unhealthy and malicious information from the mass network information and achieve the purpose of monitoring the websites efficiently, we use the text preprocessing based on the vector space model and the improved Naive Bayesian classifier to construct a identification system of sensitive information. This system not only identify and classify the sensitive information from the mass of network information, but also provide a practical system and program for monitoring the websites.
HUMANOID ROBOT WALKING TRAJECTORY GENERATION AND HYBRID CONTROL Ozan

Past three decades witnessed a growing interest in biped walking robots because of their advantageous use in the human environment. However, their control is challenging because of their many DOFs and nonlinearities in their dynamics. Various trajector y generation and walking control approaches ranging f rom open loop walking to systems with many sensors and feedback loops have been reported in the literature . Th tuning of the parameters of reference gait is a com m n complication encountered . Another important problem of the walking control is the ground force interaction of the swinging leg at landing. This paper uses position references for the upper body. Optimization techniques are employed to obtai n suitable leg joint torques for the supporting leg to track b ody reference trajectories. Locomotion is achieved by a swinging le control scheme which is independent of the body reference p osition tracking. This method is based partly on gravity co mpensation and virtual potential fields applied to the swingin g leg, and partly relies on position control. Soft landing of the leg can easily be handled with this scheme. 3D dynamics and ground interaction simulation techniques are employ ed for a 12-DOF biped robot to test the proposed metho d. The simulations indicate the applicability of the m ethod in real implementations.
Can Television Advertising Impact Be Measured on the Web? Web Spike Response as a Possible Conversion Tracking System for Television

Consumers are increasingly using internet-connected devices while watching television. This paper will show that it is possible to measure web activity bursts that peak about 13 seconds after the end of traditional TV ad broadcasts. By measuring this effect, we propose that it may be possible to deploy a web-based TV conversion tracking system that will work on TV systems.
Atuação do Líder na Gestão Estratégica de Pessoas: Reflexões, Lacunas e Oportunidades

Strategic people management is a widely studied topic, emphasizing the relationship between management policies and practices and other organizational variables. The managerial roles of organizational actors have been scarcely researched, making the implementation process of people management little explored. The study of human resources contributes to show a gap in the implementation process, as it addresses the role of professional consultants. This work aims to analyze the performance of leaders as a link in strategic people management through reflections suggested and guided by theoretical framework (strategic people management, leadership and the relations between those themes) and suggests an integration of theoretical models (leadership and people management) to support the evolution of research. The four leader orientations proposed by Yukl (2012), the organizational spaces defined by O'Reilly, Caldwell, Chatman, Lapiz and Self (2010), as well as Gratton and Truss' (2003) three-dimensional model and the people management roles Ulrich (1997) suggests may serve as a base to integrate the themes. Through this article, we intend to contribute by providing support for the development and deepening of empirical studies, as well as address the topic of implementation in strategic management of people.
Inter-rater reliability of actual tagged emotion categories validation using Cohen’s Kappa coefficient

It is necessary to find the human inter-rater agreement in emotion recognition research especially when handling with publicly available database. This paper discusses the Cohen’s Kappa coefficient technique to verify the actual tagged emotion categories for hybrid emotion model using music video as stimulus. This method has been done by finding the degree of inter-rater reliability between the five selected raters. As the results, the values of Cohen’s Kappa coefficients are over 0.87 for four actual tagged emotion categories which are happy, relaxed, sad and angry. These values demonstrate that the degree of inter-rater agreement are excellent. The actual tagged emotion categories are selected based on the division of average value of arousal-valence rating.
Performance evaluation of techniques for retinal abnormality detection

Systemic diseases like hypertension, diabetes and vascular disorders will affect the retinal vessels. Whenever affected with these kinds of diseases the retinal vessels show some sort of vascular variations according to the severity of the conditions. So in order to diagnose these diseases an efficient system that can detect the retinal abnormalities is required. For identifying the variations in retinal vessel caliber, AVR ratio is calculated. This paper presents a performance evaluation of various automatic retinal vessel classification systems and exudate identification system. The retinal vessel classification and caliber estimation can be done by exploiting either visual or geometric features that enable discrimination between vein and arteries.
In Vivo Evaluation of the Biomechanical Properties of Optic Nerve and Peripapillary Structures by Ultrasonic Shear Wave Elastography in Glaucoma

Background Primary open-angle glaucoma is a multifactorial serious disease characterized by progressive retinal ganglion cell death and loss of visual field. Objectives The purposes of this study were to investigate shear wave elastography (SWE) use in the evaluation of the optic nerve (ON) and peripapillary structures, and to compare the findings between glaucomatous and control eyes. Patients and Methods A case-controlled study, including 21 patients with primary open-angle glaucoma and 21 age-matched control subjects, was carried out. All of the participants had comprehensive ophthalmological exams that included corneal biomechanical measurements with ocular response analyzer. In vivo evaluation of the biomechanical properties of the ON and peripapillary structures were performed with SWE in all participants. The Kolmogorov–Smirnov test was used to analyze the normal distribution of data. Differences of parameters in ophthalmologic data and stiffness values of patients with and without glaucoma were evaluated using the Mann-Whitney U test. Results There were no statistically significant differences between the glaucoma and control groups in terms of age (P > 0.05) and gender (P > 0.05). Corneal hysteresis was lower in the glaucoma group (P < 0.05). Corneal compensated intraocular pressure and Goldmann correlated intraocular pressure were higher in the glaucoma group (P < 0.0001 for both). The mean stiffness of the ON and peripapillary structures were significantly higher in glaucoma patients for each measured region (P < 0.05). Conclusion The study evaluated the biomechanical properties of the ON and peripapillary structures in vivo with SWE in glaucoma. We observed stiffer ON and peripapillary tissue in glaucomatous eyes, indicating that SWE claims new perspectives in the evaluation of ON and peripapillary structures in glaucoma disease.
APOE genotype, family history of dementia, and Alzheimer disease risk: a 6-year follow-up study.

BACKGROUND Both family aggregation and apolipoprotein E (APOE) epsilon4 allele are well-known risk factors for dementia, but the relation between these two factors remains unclear. OBJECTIVE To explore whether the risk of dementia and Alzheimer disease (AD) due to a positive family history is explained by APOE genotypes. DESIGN Community-based cohort study. SETTING The Kungsholmen district of Stockholm, Sweden. PARTICIPANTS A total of 907 nondemented people 75 years or older, followed up for 6 years to detect incident dementia and AD cases according to the diagnostic criteria of the Diagnostic and Statistical Manual of Mental Disorders, Revised Third Edition. MAIN OUTCOME MEASURES Risk of dementia and AD by Cox proportional hazards models after controlling for several potential confounders. RESULTS Subjects who had at least 2 siblings with dementia were at an increased risk of AD. Individuals with both APOE epsilon4 allele and at least 2 affected first-degree relatives had a higher risk of dementia and AD compared with those without these 2 factors. Similar results were obtained for history of dementia separately in parents or siblings. Among the epsilon4 allele carriers, subjects with 2 or more first-degree demented relatives had increased risk of dementia and AD, whereas no increased risk was detected among non-epsilon4 carriers. CONCLUSIONS Family history of dementia was associated with an increased risk of dementia and AD in this very old population, but only among APOE epsilon4 carriers. This suggests the existence of other genetic or environmental risk factors that may be active in the presence of the APOE epsilon4 allele.
X-ray Observations of the New Pulsar–supernova Remnant System Psr J1119−6127 and Snr G292.2−0.5

PSR J1119−6127 is a recently discovered 1700-year-old radio pulsar that has a very high inferred surface dipolar magnetic field. We present a detailed analysis of a pointed ASCA observation and archival ROSAT data of PSR J1119−6127 and its surroundings. Both data sets reveal extended emission coincident with the newly-discovered radio supernova remnant G292.2–0.5, reported in a companion paper by Crawford et al. A hard point source, offset ∼1. ′ 5 from the position of the radio pulsar, is seen with the ASCA GIS. No pulsations are detected at the radio period with a pulsed fraction upper limit of 61% (95% confidence). The limited statistics prevent a detailed spectral analysis, although a power-law model with photon index Γ ≈ 1 − 2 describes the data well. Both the spectral model and derived X-ray luminosity are consistent with those measured for other young radio pulsars, although the spatial offset renders an identification of the source as the X-ray counterpart of the pulsar uncertain.
Moet hier een app voor zijn? Remmende en stuwende factoren om van Brussel een “slimme” stad te maken

Tegenwoordig zijn er meer dingen dan mensen verbonden met het internet, zijn er meer mobiele dan vaste breedbandabonnementen en woont meer dan 50% van de wereldbevolking in steden. Smartphones en de mobiele diensten en apps die hierop draaien zijn de dominerende interface geworden tussen de burgers en de zogenaamde “smart city”. Dit zorgt evenwel voor problemen voor steden en lokale overheden die zich geconfronteerd zien met een overvloed aan nieuwe uitdagingen in een veranderende publieke context. Dit artikel bevat negen remmende en stuwende factoren die de eerste stappen vormen voor steden in het algemeen, en Brussel in het bijzonder, om hun pogingen om “slimmer” te worden scherp te stellen, met het mobiele als belangrijk uitgangspunt.
A Textbook Analysis : an In-depth Analysis of Activities in Scientific Approach's Perspective in an Efl Textbook for Seventh Grade

The need for teachers to analyze whether the textbook used applies learning approach demanded by the curriculum starts to raise. Therefore, this study aims to find out to what extent the activities given in the textbook follow the scientific approach in its design. This study belonged to descriptive evaluative method through content analysis. The main data were three chapters of the selected textbook. The texts were analyzed by using Task Analysis Sheet (TAS) adapted from Littlejohn (1998, in Tomlinson, 2011) rated by two experienced English teachers. The findings showed that in terms of physical appearence and types of activities the textbook was attractive since it is printed full color filled with pictures, illustration, various activities, songs, and games. However, the activities did not fully apply scientific approach as demanded by Curriculum 2013 since the five scientific learning activities were not evenly distributed. Questioning and Communicating activities existence were superior with 61% and 52% compared to Observing, Collecting information, and Associating ones with 22%, 14%, and 19% respectively.Therefore, considering the findings, it is suggested that the teachers should be always well prepared facing curriculum including the learning approach and textbooks changes by time goes by. Thus, they should be critical and creative once they found the lack of textbook provided by the government.
An ultra low voltage rail-to-rail DTMOS voltage follower

An ultra low voltage rail-to-rail DTMOS voltage follower is presented. The circuit is developed based on a complementary source follower with a common-source output stage. The circuit is designed using a 0.13 μm CMOS technology and SPICE is used to verify the circuit performance. The voltage follower can drive ± 0.25 V to the 500 Ω with the total harmonic distortion (THD) of 0.4% at the operating frequency of 1 MHz. The bandwidth and power dissipation are 288 MHz and 103 μW, respectively.
Distribution and innervation of short, interdigitated muscle fibers in parallel‐fibered muscles of the cat hindlimb

The cat hindlimb contains several long, biarticular strap muscles composed of parallel muscle fascicles that attach to short tendons. Three of these muscles ‐sartorius, tenuissimus, and semitendinosus ‐were studied by dissecting individual gold‐stained fibers and determining the surface distribution of acetylcholinesterase‐stained end‐plate zones. In each muscle, fascicles were composed of muscle fibers that ran only part of the fascicle length and tapered to end as fine strands that interdigitated with other tapering fibers within the muscle mass. Most muscle fibers measured 2–3 cm in length. Fascicles of muscle fibers were crossed by short transverse bands of endplates (1 mm wide by 1–5 mm long) that were spaced at fairly regular intervals from the origin to the insertion of the muscle. The endplate pattern suggested that the fiber fascicles were organized into multiple longitudinal strips. In the sartorius, the temporospatial distribution of electromyographic (EMG) activity evoked by stimulating fine, longitudinal branches of the parent nerve confirmed that each strip was selectively innervated by a small subset of the motor axons. These axons appeared to distribute their endings throughout the entire length of the fascicles, providing for synchronous activation of their in‐series fibers.
CLIS-TR-0001 May 2000 Using Implicit Feedback for User Modeling in Internet and Intranet Searching φ

Powerize Server 1.0, developed by Powerize.com, is a content-based information filtering and retrieval system that presently uses a manually constructed user model known as a search profile. User modeling captures a user’s information needs. A user model can be constructed explicitly by the user or implicitly by exploiting feedback from the user about which documents are relevant. Implicit feedback can be inferred from user behavior without any additional work on the part of the user. The study reported in this paper investigates a way of implementing the implicit feedback technique of user modeling for the Powerize Server 1.0. Previous studies on Internet discussion groups (USENET news) have shown reading time to be a useful source of implicit feedback for predicting a user’s preferences. In this study, we examined: 1) whether reading time is useful for predicting a user’s preferences for academic or professional journal articles, and 2) whether printing behavior adds anything to what we already know from reading time. Two experiments were conducted with undergraduate students using professional articles from the telecommunications and pharmaceutical industries. The results of the experiments showed that reading time could be used to predict the relevancy of documents, although the threshold on reading time required to detect relevant documents would be higher than for USENET news articles. The experiments also showed that printing behavior adds to what can be inferred from reading time. All the documents that were printed in the experiments were relevant, but the reading time for many of these documents was below the mean reading time for all documents read. This result implies that the use of printing behavior with reading time could increase the precision and recall ratios for detecting relevant documents. Suggestions for incorporating the results of the study into the Powerize Server were made in conclusion. This paper also reports detailed technical descriptions of the experiment design, including research problem, experimental system, and data collection. φ The research reported herein was supported in part by the Maryland Industrial Partnerships program and powerize.com
Chronic Alcohol Disrupts Dopamine Receptor Activity and the Cognitive Function of the Medial Prefrontal Cortex

Dopamine (DA) receptors in the medial prefrontal cortex (mPFC) exert powerful effects on cognition by modulating the balance between excitatory and inhibitory neurotransmission. The present study examined the impact of chronic intermittent ethanol (CIE) exposure on cognitive function and DA receptor-mediated neurotransmission in the rat mPFC. Consistent with alterations in executive function in alcoholics, CIE-exposed rats exhibited deficits in behavioral flexibility in an operant set-shifting task. Since alterations in dopaminergic neurotransmission in the mPFC have been implicated in a number of behavioral disorders including addiction, studies were then performed in the adult acute slice preparation to examine changes in DA receptor function in the mPFC following CIE exposure. In slices obtained from control rats, DA receptor stimulation was observed to exert complex actions on neuronal firing and synaptic neurotransmission that were not only dependent upon the particular receptor subtype but also whether it was a pyramidal cell or a fast-spiking interneuron. In contrast to slices from control rats, there was a near complete loss of the modulatory actions of D2/D4 receptors on cell firing and neurotransmission in slices obtained immediately, 1 and 4 weeks after the last day of CIE exposure. This loss did not appear to be associated with changes in receptor expression. In contrast, CIE exposure did not alter D1 receptor function or mGluR1 modulation of firing. These studies are consistent with the suggestion that chronic alcohol exposure disrupts cognitive function at least in part through disruption of D2 and D4 receptor signaling in mPFC.
Punishing coaching: bukatsudō and the normalisation of coach violence

Abstract At the beginning of 2013 two independent cases made the headlines of Japanese newspapers. The first case involved the suicide of a high school student that was allegedly triggered after he received several beatings from his basketball coach for failing to perform well enough. The second case involved fifteen female judoka, including competitors in the London Olympics, who filed a letter with the Japanese Olympic Committee complaining of violence by two coaches, including the head coach of the women's team. Both these cases caused a national debate about the practice of taibatsu (corporal punishment) in sport in Japan. This article is based on the outcomes of focus groups that were conducted with students at ten universities from across Japan in 2013. In particular, we examine the ways in which students’ normalised acts of violence from coaches, accepting them as necessary forms of discipline and, in many cases interpreting such acts as indicative of caring coaching and kindness. Further, we consider the responses of students, which suggest that these forms of corporal punishment are necessary in producing a uniquely Japanese form of identity. The complex relationship between sport and education in Japan suggests that attempts to change the ways in which bukatsudō operate, including coach/athlete relationships, is problematic and may require major reconsideration of the role of sport in education.