Miracle-dz/UniFAR-FTUs huggingface dataset:
Dynamic luminance correction for colored surfaces

Recently, large surrounding displays are widely used for providing immersive virtual environments. Latest trends of the projection system are using our accessible rooms as a surrounding screen, because the traditional special display like a CAVE is quite large and difficult for its maintenance. Therefore, precise correction techniques for projecting images on the walls surrounding us in our daily life are strongly required. Many geometrical and luminance correction techniques were proposed for improving the quality of projected images on the walls. However, those methods have to previously measure the 3-D shapes and reflecting properties of the target walls precisely. And also, simple assumption leads to the degradation of correction quality[Fujii et al. 2005]. This complex limitation is the bottle neck of the widespread use of the immersive projection techniques using the walls.
Using rough sets to construct sense type decision trees for text categorization

Accurate text categorization is needed for efficient and effective text retrieval, search and filtering. Finding appropriate categories and manually assigning them to existing documents is very laborious. The paper shows a simple procedure for automatic extraction of atomic sense types (semantic categories) from documents based on rough sets. The atomic sense types are nodes of a sense type decision tree, which represents a taxonomy.
Study on Evolution of Domain Ontology

On the base of deep study of domain ontology’s evolution’s principle,gist,method and model , this paper reconstructs and uses such recognized ontology knowledge as professional thesaurus, professional dictionary and textbook and realizes knowledge collection and manipulation to build auto-learning system of depended text’s ontology finally to set up automatic construction of domain ontology’s concept description system by the help of knowledge about domain ontology , which can help resolve this bottleneck problem about domain ontology’s automatic evolution effectively.
On the simulation of low-frequency noise upconversion in InGaP/GaAs HBTs

Residual phase-noise measurements of GaAs heterojunction bipolar transistors (HBTs) with different low-frequency noise properties are used to investigate how accurate a compact HBT model can predict the upconversion of low-frequency noise under nonlinear operation. We find that the traditional low-frequency source implementation, as well as a cyclostationary noise source implementation, have shortcomings under different operation conditions. While, in general, the cyclostationary approach yields much better results, it fails under certain operation conditions. Experimental evidence is given that this is caused by overestimated correlation between baseband noise and RF noise sidebands. It is shown that a model based on cyclostationary sources with reduced cross-correlation yields good agreement between measurement and simulation in all cases.
Prototyping a Lightweight Trust Architecture to Fight Phishing

LTA is a lightweight trust architecture that fights phishing attacks by authenticating e-mail messages. LTA uses separable identity-based ring signatures, which are more attractive than traditional digital signatures for e-mail signing. Because the signatures are identity-based, users do not need to generate keys ahead of time. And because the ring signatures are repudiable, users do not need to adapt to having every message they send be binding. This paper describes a complete implementation of LTA. Our prototype includes a keyserver that supplies secret keys to users, a DNS server that serves a master public key, and an e-mail client that can sign messages and verify signatures. These components use the message-processing functions and cryptographic primitives that we implemented. Our prototype demonstrates that LTA is a feasible and practical system for authenticating e-mail and for fighting phishing attacks.
Ewing’s Sarcoma Presenting as Hip Monoarthritis in a Spondyloarthritis Patient

Seronegative spondyloarthritis (SpA) and Ewing’s sarcoma (ES) are common disorders affecting young males. A great challenge is to diagnose both diseases in the same patient. Here we describe a case of a young male patient having SpA, who developed ES that presented as monoarthritis of left hip which was misdiagnosed twice; first as peripheral manifestation of SpA and second as septic arthritis; before the correct diagnosis was reached. A 17 year-old boy presented with inflammatory low back pain of gradual onset lasting for 4 months and knee arthralgias. Examination revealed the presence of localized tenderness over both SIJs and limited lumbar flexion. Plain x-ray showed bilateral grade 2 sacroiliitis and he was Rheumatoid factor negative. The diagnosis of seronegative SpA was made based on fulfillment of the Association of Spondyloarthritis International Society classification criteria for axial SpA. Nonsteroidal anti-inflammatory drugs (NSAIDs) and sulphasalazine were prescribed resulting in rapid improvement of back pain and knee arthralgia. Four months later, the patient had increased severity of his back pain with pain at the left hip region associated with painful limited internal hip rotation. The diagnosis of left hip arthritis associated with SpA was made without requesting imaging study at that time. The dose of NSAIDs was increased and a low dose steroid was added. Few days later, the general condition of the patient deteriorated with the development of night fever, poor night sleep and poor appetite. On presentation, the patient looked very ill with fever. Hip examination revealed marked painful limited hip movement with flexion deformity. New investigations revealed an ESR of 110 mm/hr, and a CRP of 88 mg/L. There was normochromic normocytic anemia (HB: 9g/dl) and leucocytosis (WBC: 13.300/µL). The diagnosis initially considered was acute septic arthritis. Left hip arthrocentesis failed to aspirate any fluid and ultrasound revealed the absence of joint effusion. A multislice computerized tomography (CT) revealed the presence of a destructive osseous lesion targeting the left pubic bone and the left acetabulum with intra-articular extension into the left hip joint causing bony erosion of the medial aspect of the left femoral head. An MRI showed intra-pelvic extension with enlarged iliac lymph nodes. A biopsy was obtained from the mass. Histopathology revealed a malignant round-cell tumor consistent with ES. The patient was referred for chemotherapy and we knew that he was started on a combination of drugs for a short time before he died. To the best of our knowledge this is the first report in literature of ES in SpA patient and the second report of ES presenting as hip monoarthritis.
No associations of Helicobacter pylori infection and gastric atrophy with plasma total homocysteine in Japanese

Recent studies have suggested that Helicobacter pylori (H. pylori) infection might be a risk factor for atherosclerosis. Since the bacterium has not been isolated from atherosclerotic lesions, a direct role in atherogenesis is not plausible. We examined associations of plasma total homocysteine (tHcy) and serum folate, independent risk factors for atherosclerosis, with H. pylori infection and subsequent gastric atrophy among 174 patients (78 males and 96 females) aged 20 to 73 years, who visited an H. pylori eradication clinic of Nagoya University from July 2004 to October 2005. Polymorphism genotyping was conducted for methylenetetrahydrofolate reductase (MTHFR) C677T and thymidylate synthase (TS) 28-bp tandem repeats by PCR with confronting two-pair primers and PCR, respectively. H. pylori infection and gastric atrophy were not significantly associated with hyperhomocysteinemia (tHcy ≥ 12 nmol/ml), when adjusted by sex, age, smoking, alcohol, and genotypes of MTHFR and TS. The adjusted odds ratio of gastric atrophy for low folate level (≤ 4mg/ml) was 0.21 (95% confidence interval = 0.05-0.78). The associations of tHcy with serum folate and MTHFR genotype were clearly observed in this dataset. The present study demonstrated that folate and MTHFR genotype were the deterministic factors of plasma tHcy, but not H. pylori infection and subsequent gastric atrophy, indicating that even if H. pylori infection influences the risk of atherosclerosis, the influence may not be through the elevation of homocysteine.
Automatic Concept Relationships Discovery for an Adaptive E-course

To make learning process more effective, the educational systems d eliver content adapted to specific user needs. Adequate personalization requires the domain of learning to be described explicitly in a particular detail, involving relationships between knowledge elements referred to as concepts. Manual creation of necessary annotations is in the case of larger courses a demanding task. In this paper we tackle a concept relationship discovery problem that is a step in adaptive e-course authoring process. We propose a method of automatic concept relationship discovery for an adaptive e-course. We present two approaches based on domain model graph analysis. We evaluate our method in the domain of programming.
Heads and hearts: the endothelial connection.

Atherosclerosis is an inflammatory, proliferative, thrombotic arterial disease initiated by risk factor injury to the endothelium. Although obstructive plaques develop locally, the disease is always diffuse if examined by intravascular ultrasound or histology. Assessing and treating the initiating risk factors and the resulting obstructive disease has been the traditional approach to managing atherosclerosis. Our recent understanding of how the related pathophysiological processes of endothelial dysfunction and inflammation connect risk factors and disease expression has led to an interest in using these pathways to assess patient risk and determine therapies.1,2 In the future, we will also directly assess our genetic predisposition for developing and clinically manifesting atherosclerosis. See p 2805 In response to physical and chemical stimuli, the endothelium regulates vascular physiology through control of vasoactivity, inflammation, vessel growth and remodeling, monocyte adhesion, platelet activation, thrombosis, and thrombolysis.3 Normal endothelium is associated with a vasodilatory, antiatherogenic state, whereas dysfunctional endothelium is associated with a proatherogenic state and plaque instability. The predominant endothelium-derived vasodilator, nitric oxide, has several antiatherogenic properties, including inhibition of platelet aggregation and smooth muscle cell proliferation. In experimental animals, nitric oxide availability is inversely related to disease progression. Endothelial function is impaired by all traditional risk factors. Endothelial function is thought to be a gauge of cumulative risk factor burden modified by genetic susceptibility. Conversely, improvements in endothelial function have been demonstrated with risk factor modification, such as with cholesterol and blood pressure reduction. Risk factors and risk factor modification change endothelial function very rapidly, and endothelial dysfunction is evident even before intravascular ultrasound evidence of atherosclerosis is present.4 Over the past decade, endothelium-mediated vasoactivity and inflammation have evolved into clinically relevant markers of ongoing atherosclerosis. Endothelium-dependent vasodilation can be assessed in the coronary and peripheral arteries as conduit vessel diameter or blood flow (resistance …
Multiscale Methods for Polyhedral Regularizations

In this paper we present the extension and generalization of the adaptive inverse scale space (aISS) method proposed for $\ell^1$ regularization in [Math. Comp., 82 (2013), pp. 269--299] to arbitrary polyhedral functions. We will see that the representation of a convex polyhedral function as a finitely generated function allows us to conclude that the inverse scale space flow (the time continuous formulation of the augmented Lagrangian method) can be solved exactly without discretization. We present an algorithm for the computation of such a solution for arbitrary polyhedral functions, analyze its convergence, and interpret the well-known (forward) scale space flow as the inverse scale space flow on the convex conjugate functional, thus including this class of flows in our analysis. A surprising result is the equivalence of the scale space or gradient flow with a standard variational problem. Finally, we give examples of the applications for the aISS algorithm for polyhedral functions, which illustrate th.
A Pairing Based Strong Designated Verifier Signature Scheme without Random Oracles

In this study, a novel strong designated verifier signature scheme based on bilinear pairings with provable security in the standard model is proposed, while the existing ones are secure in the random oracle model. In 2007 and 2011, two strong designated verifier signature schemes in the standard model are proposed by Huang et al. and Zhang et al., respectively; in the former, the property of privacy of the signer’s identity is not proved and the security of the latter is based on the security of a pseudorandom function. Our proposal can deal with the aforementioned drawbacks of the previous schemes. Furthermore, it satisfies non-delegatability for signature verification.
IS Research Frameworks and Paradigms

The foundations of research in Information Systems can be studied at least from the viewpoint of frameworks and paradigms. Information Systems (IS) researchers have argued for and against having a research framework in the IS field. Several descriptive and normative IS research frameworks have been suggested. Many IS researchers have been engaging into the debate concerning the core of the IS field. Within this debate different conceptions of IS research paradigms have emerged. Research of IS research frameworks and paradigms is historical in nature and aims to clarify IS as a research field.
Learning to rank for joy

User-generated content is a growing source of valuable information and its analysis can lead to a better understanding of the users needs and trends. In this paper, we leverage user feedback about YouTube videos for the task of affective video ranking. To this end, we follow a learning to rank approach, which allows us to compare the performance of different sets of features when the ranking task goes beyond mere relevance and requires an affective understanding of the videos. Our results show that, while basic video features, such as title and tags, lead to effective rankings in an affective-less setup, they do not perform as good when dealing with an affective ranking task.
Optimizing Laboratory Mixture Design as It Relates to Field Compaction to Improve Asphalt Mixture Durability

Most departments of transportation, including Indiana, currently use the Superpave mixture design method to design asphalt mixtures. This method specifies that the optimum asphalt content for a given gradation be selected at 4 percent air voids. During construction, these mixtures are typically compacted to 7‐8 percent air voids. If mixtures were designed to be more compactable in the field they could be compacted to the same density as the laboratory mixture design, which would increase pavement durability by decreasing the in‐place air voids. The objective of this research was to optimize the asphalt mixture design in order to increase in‐place asphalt pavement durability without sacrificing the permanent deformation characteristics of the mixture. Three asphalt mixtures were designed using the standard Superpave design method at 100 gyrations of the Superpave Gyratory Compactor, suitable for traffic levels of 3 to 30 million Equivalent Single Axle Loads. Each mixture was then used as a starting point to design three additional mixtures using 70, 50, and 30 gyrations, with optimum binder content chosen at 5 percent air voids, rather than the currently specified 4 percent. The effective asphalt content was held constant for the original and re-designed mixtures. Permanent deformation characteristics of the sets of four mixtures were determined by measuring the dynamic modulus and flow number. The results suggest that the mixture designs produced using 70, 50, and 30 gyrations had permanent deformation characteristics equal to or better than the original 100‐gyration mixtures. Based on the laboratory test results, two field trials were placed to evaluate the design method, ease of construction and to compare the construction results of the re‐designed and original mixtures. Samples from both projects were collected during construction, test specimens compacted, and additional physical testing completed. The field trial results suggest that it is possible to place a mixture at 5 percent air voids and that mixtures designed at 5 percent air voids should have equivalent performance to those designed at the conventional 4 percent air voids.
The Effect of Scientific Inquiry Learning Model and Scientific Argumentation on The Students’ Science Process Skill

This study aim edtoanalyze if the result of students science process skill with using scientific inquiry learning model better than conventional learning, to analyze if the results of science process skill of students who have high average of scientific argumentation better than students who have low average of scientific argumentation, to find out interaction between scientific inquiry learning model and scientific argumentation of physics students science process skill. This research is a quasi-experimental design with two group pretest-posttest design. The result of the data analyzed by using two ways Analysis of Variance. The results showed that the science process skill of students using scientific inquiry learning model better than conventional learning, The science process skill of students who have high average of scientific argumentation better than students who have the low average of scientific argumentation, and there was interaction between the scientific inquiry learning model and conventional learning with scientific argumentation to improve physics students science process skill.
Superactivation of Pax6-mediated Transactivation from Paired Domain-binding Sites by DNA-independent Recruitment of Different Homeodomain Proteins*

The Pax6 genes encode evolutionary conserved transcription factors that act high up in the regulatory hierarchy controlling development of central organs such as the eyes and the central nervous system. These proteins contain two DNA-binding domains. The N-terminal paired domain is separated from a paired-type homeodomain by a linker region, and a transactivation domain is located C-terminal to the homeodomain. Vertebrate Pax6 genes express a paired-less isoform of Pax6 (Pax6ΔPD) from an internal start codon in the coding region between the paired domain and homeodomain. We now provide evidence for an interaction between the full-length isoform and Pax6ΔPD, which enhances the transactivation activity of Pax6 from paired domain-binding sites. The paired-like homeodomain protein Rax behaved similarly to Pax6ΔPD. Both Pax6ΔPD and Rax bound to the homeodomain of Pax6 in vitro in the absence of specific DNA binding. Coimmunoprecipitation experiments following cotransfection confirmed the existence of complexes between Pax6 and Pax6ΔPD, Pax6 and Rax, and Pax6ΔPD and Rax in vivo. Interestingly, the C-terminal subdomain of the paired domain and the homeodomain can interact with each other. The paired domain can also interact with itself. Surprisingly, GST pull-down assays revealed that the homeodomains of such diverse proteins as Chx10, Six3, Lhx2, En-1, Prep1, Prox1, and HoxB1 could all bind to Pax6, and several of these enhanced Pax6-mediated transactivation upon coexpression. Since many homeodomain proteins are coexpressed with Pax6 in several tissues during development, our results indicate the existence of novel regulatory interactions that may be important for fine tuning of gene regulation.
An iterative probabilistic model of speech-related vocalization rate growth due to child-caregiver interaction

Over the course of the first four years of life, the proportion of children's vocalizations that are speech-related increases steadily. The rate of this growth is reduced for children with autism spectrum disorder (ASD) and for children from households with relatively lower socioeconomic status (SES). The present study attempts to model this set of findings, treating adult responses as reinforcers of child behavior. The model starts with a 50% chance of producing a speech-related vocalization and gradually increases this probability by updating its speechrelated vocalization and not-speech-related vocalization probabilities each time a response is received. Numbers of vocalizations per day and rates of adult responding to the two vocalization types are drawn from human data to create high SES typically developing (TD), high SES ASD, low SES TD, and low SES ASD versions. The model shows growth in speech-related vocalizations that matches well to that observed for the human children and that matches the differences observed across clinical and SES groups. Some aspects of speech-related vocalization development are not well accounted for by the model; possible explanations and extensions are proposed.
Watermarking for depth-image-based rendering

In this paper, a novel watermarking method for depth-image-based rendering methods employed in free viewpoint television systems is proposed. The proposed method uses a correlation-based approach; where a watermark pattern is warped for each different view of the multi-view source video, and embedded to the texture maps of those views in spatial domain. First, the projection matrix of the 2D rendered image is estimated; then, using this matrix, a rendered watermark is formed by warping the original watermark pattern. Finally, Symmetric Phase Only Matched Filtering is used to find the correlation between the rendered image and the rendered watermark. Extended simulations with various attacks show the applicability of the proposed solution.
Calcium Dynamics of Cortical Astrocytic Networks In Vivo

Large and long-lasting cytosolic calcium surges in astrocytes have been described in cultured cells and acute slice preparations. The mechanisms that give rise to these calcium events have been extensively studied in vitro. However, their existence and functions in the intact brain are unknown. We have topically applied Fluo-4 AM on the cerebral cortex of anesthetized rats, and imaged cytosolic calcium fluctuation in astrocyte populations of superficial cortical layers in vivo, using two-photon laser scanning microscopy. Spontaneous [Ca2+]i events in individual astrocytes were similar to those observed in vitro. Coordination of [Ca2+]i events among astrocytes was indicated by the broad cross-correlograms. Increased neuronal discharge was associated with increased astrocytic [Ca2+]i activity in individual cells and a robust coordination of [Ca2+]i signals in neighboring astrocytes. These findings indicate potential neuron–glia communication in the intact brain.
Tone and intonation

The objective of this study is to identify the basic components of pitch that can be isolated from tone and attributed to intonation, and establish them as the elements that must be accounted for in the transcription of an oral corpus in order to make it useful for typological studies of intonation. To address this problem, this study leans heavily on Zaar, a Chadic tone language spoken in the South of Bauchi State, Nigeria.