Miracle-dz/UniFAR-FTUs huggingface dataset:
DWT-based robust video fingerprinting

Video fingerprints are short features extracted from a video sequence in order to uniquely identify that visual content and its replicas. The present paper introduces a new DWT-based robust video fingerprinting method. In this respect, a characteristic set of wavelet coefficients is used as fingerprint. Due to the inner DWT properties with respect to content preserving attacks (such as linear filtering, sharpening, geometric, conversion to grayscale, small rotations, contrast changes), good results in terms of probability of missed detection and probability of false alarm are obtained. The video corpus consists of 3 hours of heterogeneous original content and of its attacked versions (a total of 21 hours of video content).
Helicopter Rotor Design Using a Time-Spectral and Adjoint-Based Method

A time-spectral and adjoint-based optimization method was developed and applied to helicopter rotor design for unsteady level flight. The time-spectral method is a fast and accurate computational fluid dynamics algorithm for computing unsteady flows. It transforms the flow-governing equations into a periodic steady state by using a Fourier spectral derivative operator. An accompanying steady-state adjoint formulation was implemented in the time-spectral form of the governing equations to enable design optimization for unsteady flows. The time-spectral analysis was validated against conventional time-accurate computational fluid dynamics computation and flight test data of a UH-60A helicopter rotor during high-speed forward flight. A multidisciplinary analysis of blade structural dynamics was carried out through a comprehensive analysis coupling procedure that accounted for aeroelasticity and enforced vehicle trim. The adjoint-based design method was applied to optimize the blade shape of the UH-60A rotor.
Structure design and static analysis of 3-DOF structure dexterous hand

Through analyzing the structure characteristics of existing prosthetic hand, a 3-DOF prosthetic hand with link mechanism as transmission mechanism is put forward. This hand has the advantages of small size, light weight and simple control principle. Based on this, static analysis on one finger is derived, and the relationship between driving force on rack and contact force on finger is obtained using the principle of virtual work. All of this lay the foundation of selecting motor and controlling grasping force.
Amniotic membrane can be a valid source for wound healing

Amniotic membrane (AM) can promote proper epithelialization with suppression of excessive fibrosis by creating a supportive milieu for regeneration of chronic ulcer bed. Objective The objective of this study is to investigate whether AM scaffold can modulate the healing of a wound by promoting tissue reconstruction rather than promoting scar tissue formation. Subjects and methods AM was obtained and prepared and then applied to patients with chronic leg ulcers who were randomly divided into two different groups. Group I (control group) included eleven patients in whom ulcers were treated with conventional wound dressings that were changed daily for 8 weeks. Group II (study group) included 14 patients in whom the AM was placed in contact with the ulcer and held in place with a secondary dressing, which was changed daily. Follow-up was done to detect healing rate and detection of ulcer size, assessment of pain, and to take ulcer images (days 0, 7, 14, 21, 30, 45, and 60). Results In group I, all ulcers showed no reduction in their size, and ulcer floor remained the same. Healthy granulations were present in two ulcers (18.2%) and absent in nine ulcers (81.8%). There was no improvement of pain level in the eleven ulcers. In group II, complete healing of 14 ulcers occurred in 14–60 days with a mean of 33.3±14.7; healing rate range was 0.064–2.22 and the mean 0.896±0.646 cm2/day. Healthy granulations were present in 13 ulcers (92.9%) and absent in one ulcer (7.1%). Three ulcers (21.4%) were of mild severity (grade 1 ulcers) while eleven ulcers (78.6%) were of moderate severity (grade 2 ulcers). The healing rate was faster in ulcers of mild severity (1.7±0.438 cm2/day) in comparison to ulcers of moderate severity (0.673±0.498 cm2/day). Eleven cases (78.6%) showed improvement in their pain level on a scale from 0 to 10. Conclusion AM graft can be of value in wound healing. Further studies are needed to confirm these findings.
Visual Re-Ranking for Multi-Aspect Information Retrieval

We present visual re-ranking, an interactive visualization technique for multi-aspect information retrieval. In multi-aspect search, the information need of the user consists of more than one aspect or query simultaneously. While visualization and interactive search user interface techniques for improving user interpretation of search results have been proposed, the current research lacks understanding on how useful these are for the user: whether they lead to quantifiable benefits in perceiving the result space and allow faster, and more precise retrieval. Our technique visualizes relevance and document density on a two-dimensional map with respect to the query phrases. Pointing to a location on the map specifies a weight distribution of the relevance to each of the query phrases, according to which search results are re-ranked. User experiments compared our technique to a uni-dimensional search interface with typed query and ranked result list, in perception and retrieval tasks. Visual re-ranking yielded improved accuracy in perception, higher precision in retrieval and overall faster task execution. Our findings demonstrate the utility of visual re-ranking, and can help designing search user interfaces that support multi-aspect search.
Art therapy, arts-based research and transitional stories of domestic violence and abuse

ABSTRACT Visual imagery within qualitative research is an established method of gathering data that has parallels to the way in which images are used within art therapy. This article explores how visual imagery was used to investigate women’s responses to domestic violence and abuse and examines how art therapy principles shaped the development and conducting of that research. Through the use of collage, participants created visual representations of their responses to experiences of domestic violence and abuse. The visual representations, when combined with spoken words, created stories that reference the past, present and future. The stories created have been termed transitional stories of domestic violence. These stories show that the home has special significance for women as they transition away from domestic violence and plan for their future. The home becomes both a metaphorical and physical manifestation and container of hopes for a harmonious future that often incorporates the desire for the return to the idea of a complete family. This article will present the findings of the arts-based research conducted, and consider the implications upon art therapy practice of those findings.
Mixture Model based MAP Motif Discovering

In this paper a new maximum a posteriori (MAP) approach based on mixtures of multinomials is proposed for discovering probabilistic motifs in sequences. The main advantage of the proposed methodology is the ability to bypass the problem of overlapping motif occurrences among neighborhood positions in sequences through the use of a Markov Random Field (MRF) as a prior. This model consists of two components, the first is responsible for modeling a motif and the second corresponds to the background. The Expectation-Maximization (EM) algorithm is used to estimate the model parameters and provides closed form update rules. Special care is also taken to produce good initial values for the motif multinomial model, in order to overcome the known dependence of the EM algorithm to initialization. This is done by applying an adaptive agglomerative clustering procedure that provides candidate initial models. Experiments with both artificial and real sets of biological sequences show the advantages of the proposed approach in discovering qualitatively better motifs, in comparison with the classical maximum likelihood (ML) approach and the Multiple EM for Motif Elicitation (MEME) method which uses also an ML-based mixture model.
Where are the binary source gravitational microlensing events? II

Currently, 6 candidate binary lens events have been reported, while only a single candidate binary source event has been reported. To account for the rarity of binary source events, Dominik pointed out that for a typical binary source event the separation between the component source stars is very large, resulting in large difference in impact parameters between the component binary source stars. In these cases, the light curve of the highly amplified source star is barely affected by the light from the other star, making the observed binary source light curve difficult to distinguish from that of a single source lensing event. In this paper, we determine the fraction of events with similar source star amplifications is as much as $\sim 8%$, and thus show that the very low detection rate for binary source events cannot be explained by this effect alone. By carrying out realistic simulations of binary source events, we find that a significant fraction of binary source events are additionally missed from detection due to various other reasons. First, if the flux ratio between the component stars is very large, the light curve of the bright star is hardly affected by the light from the faint star. Second, if the separation is too small, the binary source stars behave like a single star, making it difficult to separate the binary source event from a single event. Finally, although the probability of detecting binary source events increases as the source separation increases, still some fraction of binary source events will be missed because the light curves of these events will mimic those of single source events with longer timescales and larger values of the impact parameter.
What is a Young tableau

Young tableaux are classical combinatorial objects playing recurring and varied roles in representation theory, algebraic geometry and commutative algebra. This article is a short exposition on Young tableaux, written for the "WHAT IS. " series of the Notices of the American Mathematical Society. It describes some of their properties and applications.
Quantitative Assessment of Improvement with Single Corticosteroid Injection in Thumb CMC Joint Osteoarthritis?

We present a unique prospective study to estimate the median sustained stage-related improvement in pain and hand function in patients with trapezio-metacarpal joint osteoarthritis after administration of a single corticosteroid injection. Response to the corticosteroid injection was assessed using Disability of Arm Shoulder and Hand (DASH) and Visual Analogue Scale (VAS) pain scores. Self assessment scores revealed a reduction in pain and improvement in hand function. All patients reported a significant improvement in pain and hand function (p ≤ 0.05), regardless of the disease stage. Additionally, we observed a marked difference in the duration of improvement in hand function between early and late stages of the disease (p = 0.0046). In conclusion, it is possible to predict the period of symptomatic improvement at each of the four radiological stages of the disease. This would allow the treating clinician to judge the outcome of treatment with reasonable accuracy.
How emotional intelligence relates to job satisfaction and burnout in public service jobs

Public service workers require higher levels of emotional intelligence because most public service jobs involve emotionally intense work focused on service to the public. Moreover, such emotional work may lead to a high degree of burnout and job dissatisfaction, which directly relates to organizational outcomes. Focusing on public service workers, the present study investigates the relationships between the dimensions of emotional intelligence and job satisfaction, on the one hand, and the dimensions of emotional intelligence and burnout, on the other. In the sample of 167 public service workers in the US, using employed structural equation modeling, the findings reveal that emotion regulation is significantly and negatively related to burnout and that emotional self-awareness is significantly and positively related to job satisfaction. Points for practitioners This study contributes to understanding the relationship between the emotional intelligence dimension and burnout, and the emotional intelligence dimension and job satisfaction, in public service jobs. Emotional intelligence plays a significant role for public service workers whose work involves emotionally intense job characteristics. The findings show that training in emotional intelligence abilities may increase job satisfaction and decrease burnout. Practitioners and professionals working in public management and administration may consider measures of emotional intelligence, especially emotional self-awareness and emotion regulation, in the recruitment process to select potentially effective job applicants.
Can Minor Planets Be Used to Assess Gravity in the Outer Solar System?

The twin Pioneer spacecraft have been tracked for over 30 years as they headed out of the solar system. After passing 20 AU from the Sun, both exhibited a systematic error in their trajectories that can be interpreted as a constant acceleration toward the Sun. This Pioneer effect is most likely explained by spacecraft systematics, but there have been no convincing arguments that that is the case. The alternative is that the Pioneer effect represents a real phenomenon and perhaps new physics. What is lacking is a means of measuring the effect, its variation, its potential anisotropies, and its region of influence. We show that minor planets provide an observational vehicle for investigating the gravitational field in the outer solar system and that a sustained observation campaign against properly chosen minor planets could confirm or refute the existence of the Pioneer effect. In addition, even if the Pioneer effect does not represent a new physical phenomenon, minor planets can be used to probe the gravitational field in the outer solar system, and since there are very few intermediate-range tests of gravity at the multiple-AU distance scale, this is a worthwhile endeavor in its own right.
The Location Privacy of Wireless Sensor Networks: Attacks and Countermeasures

With the related applications of wireless sensor networks getting into our lives quickly, the research of WSN is growing more and more necessary. The most significant problem which threatens the successful deployment of sensor systems is privacy, there are many protocols providing the security of news content for the WSNs. However, due to the open feature of sensor networks, context information is still in an exposed state, which makes the network be vulnerable to traffic analysis attack and hop by hop tracing back packet attack. Thus location privacy protection programs have been proposed. In this paper, we analyze and compare the existing major schemes comprehensively, meanwhile illustrate their theoretical models, principles and the advantages and disadvantages in detail.
Restoring Connectivity in Wireless Sensor-Actor Networks with Minimal Topology Changes

In Wireless Sensor-Actor Networks (WSANs), actors collect sensor readings and respond collaboratively to achieve an application mission. Since actors coordinate their operation, a strongly connected network topology would be required at all time. In addition, the path between actors may have to be capped in order to meet latency constraints. However, a failure of an actor may cause the network to partition into disjoint blocks and would thus violate such connectivity goal. One of the effective recovery methodologies is to autonomously reposition a subset of the actor nodes to restore connectivity. Contemporary schemes rely on maintaining 1 or 2-hop neighbor lists and predetermine criteria for node's involvement in the recovery. However, 1-hop based schemes often impose high node relocation overhead. In addition, the repaired inter-actor topology using 2-hop schemes often differs significantly from its pre-failure status and some inter-actor data paths may get extended. This paper presents a Least-Disruptive topology Repair (LeDiR) algorithm. LeDiR relies on the local view of a node about the network in order to devise a recovery plan that relocates the least number of nodes and ensures that no path between any pair of nodes is extended. LeDiR is a localized and distributed algorithm that leverages existing path discovery activities and imposes no additional pre-failure communication overhead. LeDiR is validated through simulation and is shown to outperform existing schemes.
cblE Type of homocystinuria due to methionine synthase reductase deficiency: Functional correction by minigene expression

The cblE type of homocystinuria is a rare autosomal recessive disorder caused by impaired reductive activation of methionine synthase. Although earlier biochemical studies proposed that the methionine synthase enzyme might be activated by two different reducing systems, mutations were reported in only the methionine synthase reductase gene (MTRR) in cblE patients. The pathogenicity of MTRR mutations, however, has not yet been tested functionally. We report on nine patients of European origin affected by the cblE type of homocystinuria. They presented between 2 weeks and 3 years of age (median age 4 weeks) with anemia, which was macrocytic in only three patients, and with neurological involvement in all but two cases. Bone marrow examination performed in seven patients showed megaloblastic changes in all but one of them. All patients exhibited moderate to severe hyperhomocysteinemia (median plasma total homocysteine [Hcy] 92 μmol/L, range 44–169), while clearly reduced methionine was observed only in four cases. Pathogenic mutations were identified in both parental alleles of the MTRR gene in all patients. Five known (c.903+469T>C, c.1361C>T, c.1459G>A, c.1557‐4_1557+3del7, and c.1622_1623dupTA) and three novel mutations (c.7A>T, c.1573C>T, and c.1953‐6_1953‐2del5) were detected. Importantly, transfection of fibroblasts of cblE patients with a wild‐type MTRR minigene expression construct resulted in a significant approximately four‐fold increase of methionine synthesis, indicating correction of the enzyme defect. Our study shows a link between a milder predominantly hematological presentation and homozygosity for the c.1361C>T mutation, but no other obvious genotype‐phenotype correlation. The identification of mutations in the MTRR gene, together with restoration of methionine synthesis following MTRR minigene expression in cblE cells confirms that this disease is caused by defects in the MTRR gene. Hum Mutat 25:239–247, 2005. © 2005 Wiley‐Liss, Inc.
Using Discourse Analysis and Automatic Text Generation to Study Discourse Cue Usage

Our two stage methodology for the study of cue usage coordinates an exhaustive corpus analysis with a system for text generation. Coding of the corpus uses Relational Discourse Analysis, a synthesis of two previous accounts of discourse structure. In the first stage of our study, hypotheses about cue usage are evaluated and refined using the corpus analysis. Several initial results conccrning how cues mark segment structure are presented here. In the second stage of our study, the results of the corpus analysis are used to determine a set of heuristics to be implemented in a system for text generation. The automatic generation of texts is then used to exercise and further evaluate the heuristics for cue placement.
Hemodialysis does not alter in vitro hepatic CYP3A4 and CYP2D6 metabolic activity in uremic serum

There is a paucity of studies evaluating the change in liver metabolism in subjects receiving hemodialysis. The purpose of this study was to compare the effect of uremic toxins on hepatic cytochrome P450 (CYP)3A4 and CYP2D6 metabolism before and after a 4-hour hemodialysis session. Midazolam and dextromethorphan were incubated with uremic serum collected from subjects before and after the 4-hour hemodialysis session. Analysis and quantification of the 1′-OH-midazolam and 4-OH-midazolam and dextrorphan metabolites were performed by high-pressure liquid chromatography/mass spectrometry. Statistical analysis using the Student’s t-test (paired) was used to compare the amount of metabolite formed. The mean amount of 1′-OH-midazolam, 4-OH-midazolam, and dextrorphan metabolites formed before and after hemodialysis did not significantly differ. There was no significant difference in CYP3A4 and CYP2D6 metabolic activity in uremic serum before and after hemodialysis.
Microstrip-Slot Coupler Design-Part I: S-Parameters of Uncompensated and Compensated Couplers

Using the even-odd mode analysis of four-port networks with double symmetry, the scattering parameters of the microstrip-slot coupler are derived from the even- and odd-mode parameters of the coupler cross section. The uncompensated coupler and the coupler compensated by extending the slot fines are treated and design specifications are given covering the compensation slot lines. A comparison with experimental data will be given in Part II.
Employee Creativity: A Conceptual Framework

The literature relevant to creativity is diverse in approach. As a result, there has been a lack of cohesive theoretical understanding of how employee creativity operates and gets affected in organizations. In the existing literature, we found a number of theoretical approaches of creativity that appear as supplementary and complementary to provide a better understanding of the creativity. However, employee creativity continues to appear as an elusive and complex phenomenon. Such observations trigger the authors’ interest to synthesize prior research and present the same in the form of a conceptual framework of employee creativity. On the basis of the results of extensive review of vast and varied literature, it is suggested that three individual characteristics, namely, personality traits & self-concepts, cognitive characteristics and motivational aspects, and four contextual characteristics, namely, super- visory and leadership behaviour, co-workers’ behaviour, job context and social network, have independent as well as combined or mediated effect on employee creativity.
Investigation on frequency diversity effects for various transmission schemes Using frequency domain equalizer in DFT-precoded OFDMA

This paper presents frequency diversity effects of localized transmission, clustered transmission, and intra-subframe frequency hopping (FH) for Discrete Fourier Transform (DFT)-precoded Orthogonal Frequency Division Multiple Access (OFDMA) using a frequency domain equalizer (FDE). In the evaluations, we employ the normalized frequency mean square covariance (NFMSV) as a measure of the frequency diversity effect, i.e., randomization level of the frequency domain interleaving associated with turbo coding. Link-level computer simulation results show that frequency diversity is very effective in decreasing the required average received signal-to-noise power ratio (SNR) at the target average block error rate (BLER) according to the increase in the entire frequency region in DFT-precoded OFDMA using a linear minimum mean square error (LMMSE) based FDE. Moreover, we show that the NFMSV is an accurate measure of the frequency diversity effect for localized transmission in terms of the average BLER and that the NFMSV for the entire frequency region well approximates the frequency diversity effect for clustered transmission. Finally, we show that the effect of intra-subframe FH is saturated at a relatively narrow FH separation and that there is no close relationship between the FH separation and the NFMSV for the intra-subframe FH.