Miracle-dz/UniFAR-FTUs huggingface dataset:
Recursive Levenberg-Marquardt Per-Tone Equalisation for Discrete Multitone systems

Recursive Levenberg-Marquardt (RLM) algorithm is presented for per-tone equalisers in discrete multitone systems. We introduce how to formulate the proposed RLM algorithm for non-linear adaptive filter. Simulation results show that the proposed RLM algorithm can improve bit rate performance and Signal to Noise Ratio improvement as compared to the existing recursive least squares-based algorithms and matched filter bound.
The Probabilistic Hough Transform with Localized Search Guided by Evidence Clusters

Two enhancements to the probabilistic Hough transform have been proposed, including the use of a new distinctiveness measure for hypothesis testing and a localized parameter vector search guided by evidence clusters. Preliminary experimental results show that large computational saving is achieved by employing the probabilistic Hough transform with distinctiveness measure when compared with the standard Hough transform. Furthermore, the use of evidence cluster can lead to further saving in computation time, especially when the image contains a large number of image points
Reverse Hemolytic Plaque Assay Study of Luteinizing and Follicle-Stimulating Hormone and Thyrotropin Secretion in Diabetic Rat Pituitary Glands

Numerous studies indicate that an impaired hypothalamopituitary axis plays an important role in reproductive and thyroid disorders in diabetic humans and animal models. Yet, several questions about the pathogenesis of these diabetic complications have not been answered. To evaluate the basal secretion of single gonadotrophs and thyrotrophs in vitro, uncultured pituitary cells from control rats and 1-mo streptozocin-induced diabetic (STZ-D) rats were studied with a reverse hemolytic plaque assay and morphometry. After light-microscopy immunocytochemistry for gonadotropin and thyrotropin (TSH), we recorded the ratio of plaqueforming to non—plaque-forming cells. The area of plaques produced by luteinizing hormone (LH), folliclestimulating hormone (FSH), and TSH cells and the area of plaque-forming and non—plaque-forming cells were clearly smaller in diabetic than control rats. The plaque area, however, was more severely reduced than the cell area. The percentage of LH-, FSH-, and TSHimmunoreactive plaque-forming cells was greatly decreased in diabetic compared with control animals. In conclusion, our findings demonstrate that the LH-, FSH-, and TSH-secreting cells of diabetic rats released less hormone and were less numerous than the corresponding cells of control rats. Thus, several pathogenetic mechanisms might be involved in reduced gonadotropin and TSH release at the cellular level: 1) anatomical lesions of organelles involved in glycoprotein hormone synthesis and secretion, possibly due to insulin deficiency; 2) decreased gonadotropin-releasing hormone (GnRH) and thyrotropin-releasing hormone (TRH) receptors on pituitary cells; 3) inadequate GnRH and TRH stimulation; 4) high plasma corticosterone levels; or 5) a combination of points 1–4.
Model Calculations and Interferometer Measurements of Ice-Cloud Characteristics

Abstract This paper investigates the relationship between high–spectral resolution infrared (IR) radiances and the microphysical and macrophysical properties of cirrus clouds. Through use of radiosonde measurements of the atmospheric state at the Department of Energy’s Atmospheric Radiation Measurement Program site, high–spectral resolution IR radiances are calculated by combining trace gas absorption optical depths from a line-by-line radiative transfer model with the discrete ordinate radiative transfer (DISORT) method. The sensitivity of the high–spectral resolution IR radiances to particle size, ice-water path, cloud-top location, cloud thickness, and multilayered cloud conditions is estimated in a multitude of calculations. DISORT calculations and interferometer measurements of cirrus ice cloud between 700 and 1300 cm−1 are compared for three different situations. The measurements were made with the High–Spectral Resolution Interferometer Sounder mounted on a National Aeronautics and Space Administra.
Bounds for Identifying Codes in Terms of Degree Parameters

An identifying code is a subset of vertices of a graph such that each vertex is uniquely determined by its neighbourhood within the identifying code. If $\M(G)$ denotes the minimum size of an identifying code of a graph $G$, it was conjectured by F. Foucaud, R. Klasing, A. Kosowski and A. Raspaud that there exists a constant $c$ such that if a connected graph $G$ with $n$ vertices and maximum degree $d$ admits an identifying code, then $\M(G)\leq n-\tfrac{n}{d}+c$. We use probabilistic tools to show that for any $d\geq 3$, $\M(G)\leq n-\tfrac{n}{\Theta(d)}$ holds for a large class of graphs containing, among others, all regular graphs and all graphs of bounded clique number. This settles the conjecture (up to constants) for these classes of graphs. In the general case, we prove $\M(G)\leq n-\tfrac{n}{\Theta(d^{3})}$. In a second part, we prove that in any graph $G$ of minimum degree $\delta$ and girth at least 5, $\M(G)\leq(1+o_\delta(1))\tfrac{3\log\delta}{2\delta}n$. Using the former result, we give sharp estimates for the size of the minimum identifying code of random $d$-regular graphs, which is about $\tfrac{\log d}{d}n$.
Compact Orthomode Transducer Using Single-Ridged Triangular Waveguides

We present a compact L-band orthomode transducer (OMT) with a new waveguide junction consisting of a quad-ridged square waveguide and four single-ridged triangular waveguides. Quad-ridged square and single-ridged triangular waveguides of various sizes were numerically analyzed to estimate the cutoff frequencies and characteristic impedances of the waveguides. An optimum junction structure for the OMT with a low cutoff frequency and specific characteristic impedance was found based on the numerical simulation. The junction has a relatively small size without waveguide branches, and provides good impedance matching with a 50 Ω coaxial feed line. In addition, Klopfenstein and linear tapers were employed to design waveguide ridges for minimizing mismatches at the OMT junction. Measurement showed a bandwidth of about 400 MHz from 1.0 to 1.4 GHz and an isolation level below -40 dB in the frequency range. The cross section of the OMT was reduced to 62% of the standard waveguide cross section, and the total length is only 56 cm (2.24 λ0) at 1.2 GHz.
Excitation modeling for HMM-based speech synthesis based on principal component analysis

This paper proposes a new excitation modeling method for improving the quality of HMM-based speech synthesis. The proposed excitation or source modeling method models the pitch-synchronous residual frames extracted from the excitation signal. Initially, principal component analysis is performed on the pitch-synchronous residual frames. Based on the analysis, the pitch synchronous residual frames are parameterized in two stages. In first stage, the dominant component of the residual frame is represented using PCA coefficients and in the second stage, the noise component of the residual frame is parameterized in terms of spectral and amplitude envelopes. The proposed excitation model is integrated into HMM-based speech synthesis system. Subjective evaluation results indicate that the speech synthesized by the proposed excitation model is significantly better than the two existing excitation modeling methods.
Parametrix approximations for option prices

We propose the use of a classical tool in PDE theory, the parametrix method, to build approximate solutions to generic parabolic models for pricing and hedging contingent claims. We obtain an expansion for the price of an option using as starting point the classical Black&Scholes formula. The approximation can be truncated to any number of terms and easily computable error measures are available.
Vivid tennis player rendering system using broadcasting game videos

Image-based rendering has been highly developed for its wide applications such as view synthesis and special effects in movies. In this paper, we proposed a tennis player rendering system synthesizing diverse player action/motion based on extracted database from broadcasting game videos. The system gathers database by retrieving the player from videos and synthesizes various kinds of player action/motion according to the user's instructions. The results show that the proposed rendering system can render smooth action/motion transition with satisfactory visual effect. For further applications, the proposed system can be used in interactive tennis games with image textures.
Non-Parametric Bayesian Human Motion Recognition Using a Single MEMS Tri-Axial Accelerometer

In this paper, we propose a non-parametric clustering method to recognize the number of human motions using features which are obtained from a single microelectromechanical system (MEMS) accelerometer. Since the number of human motions under consideration is not known a priori and because of the unsupervised nature of the proposed technique, there is no need to collect training data for the human motions. The infinite Gaussian mixture model (IGMM) and collapsed Gibbs sampler are adopted to cluster the human motions using extracted features. From the experimental results, we show that the unanticipated human motions are detected and recognized with significant accuracy, as compared with the parametric Fuzzy C-Mean (FCM) technique, the unsupervised K-means algorithm, and the non-parametric mean-shift method.
Coding task performance in early adolescence: a large-scale controlled study into boy-girl differences

This study examined differences between boys and girls regarding efficiency of information processing in early adolescence. Three hundred and six healthy adolescents (50.3% boys) in grade 7 and 9 (aged 13 and 15, respectively) performed a coding task based on over-learned symbols. An age effect was revealed as subjects in grade 9 performed better than subjects in grade 7. Main effects for sex were found in the advantage of girls. The 25% best-performing students comprised twice as many girls as boys. The opposite pattern was found for the worst performing 25%. In addition, a main effect was found for educational track in favor of the highest track. No interaction effects were found. School grades did not explain additional variance in LDST performance. This indicates that cognitive performance is relatively independent from school performance. Student characteristics like age, sex, and education level were more important for efficiency of information processing than school performance. The findings imply that after age 13, efficiency of information processing is still developing and that girls outperform boys in this respect. The findings provide new information on the mechanisms underlying boy-girl differences in scholastic performance.
Differential distribution and modulation of expression of alpha 1/beta 1 integrin on human endothelial cells

In this paper we report that the integrin complex alpha 1/beta 1, a laminin/collagen receptor, is expressed on cultured foreskin microvascular endothelium, but is absent on endothelial cells from large vessels such as the aorta and umbilical and femoral veins. The restricted expression of integrin alpha 1/beta 1 to microvascular endothelium was also demonstrated in vivo, by immunohistochemical staining of human tissue sections. Alpha 1 specific antibodies reacted strongly with endothelial cells of small blood vessels and capillaries in several tissues, but not with endothelium of vein and arteries of umbilical cord. Expression of integrin alpha 1 can be induced in cultured umbilical vein endothelial cells by treatment with 5 ng/ml tumor necrosis factor alpha (TNF alpha). Induction of alpha 1 subunit expression also occurred after treatment of umbilical vein endothelium with 10(-5) M retinoic acid or with 10 nM PMA; Maximal induction of alpha 1 integrin was reached after 48 h of treatment and costimulation with TNF alpha and PMA resulted in a synergistic effect. The induction of alpha 1 integrin changed the adhesive properties of umbilical vein endothelial cells, by increasing the adhesiveness to collagen, laminin, and laminin fragment P1, while adhesion to fibronectin and laminin fragment E8 remained constant. The alpha 1 integrin is thus a marker of a specific population of endothelial cells and its expression confers distinctive properties of interaction with the underlying basal membrane.
Cryptanalysis of a Certificateless Signature Scheme without Bilinear Pairings

During these years, the research field of certificateless signature (CLS) scheme without bilinear pairings is promptly investigated as the key escrow problem in identity-based cryptography can be solved via such concept. In this paper, we demonstrate that a certificateless signature scheme proposed by Gong and Li cannot fulfill its security claims. The authors argued that their proposed certificateless signature scheme is able to resist to the super adversary. However, this security argument can be improved. We present a series of attack processes to point out that Gong and Li’s scheme is insecure against a super type I adversary.
Identifying patient fear-avoidance beliefs by physical therapists managing patients with low back pain.

STUDY DESIGN Cross-sectional. OBJECTIVES To evaluate the accuracy with which physical therapists identify fear-avoidance beliefs in patients with low back pain by comparing therapist ratings of perceived patient fear-avoidance to the Fear-Avoidance Beliefs Questionnaire (FABQ), Tampa Scale of Kinesiophobia 11-item (TSK-11), and Pain Catastrophizing Scale (PCS). To compare the concurrent validity of therapist ratings of perceived patient fear-avoidance and a 2-item questionnaire on fear of physical activity and harm, with clinical measures of fear-avoidance (FABQ, TSK-11, PCS), pain intensity as assessed with a numeric pain rating scale (NPRS), and disability as assessed with the Oswestry Disability Questionnaire (ODQ). BACKGROUND The need to consider psychosocial factors for identifying patients at risk for disability and chronic low back pain has been well documented. Yet the ability of physical therapists to identify fear-avoidance beliefs using direct observation has not been studied. METHODS Eight physical therapists and 80 patients with low back pain from 3 physical therapy clinics participated in the study. Patients completed the FABQ, TSK-11, PCS, ODQ, NPRS, and a dichotomous 2-item fear-avoidance screening questionnaire. Following the initial evaluation, physical therapists rated perceived patient fear-avoidance on a 0-to-10 scale and recorded 2 influences on their ratings. Spearman correlation and independent t tests determined the level of association of therapist 0-to-10 ratings and 2-item screening with fear-avoidance and clinical measures. RESULTS Therapist ratings of perceived patient fear-avoidance had fair to moderate interrater reliability (ICC2,1 = 0.663). Therapist ratings did not strongly correlate with FABQ or TSK-11 scores. Instead, they unexpectedly had stronger associations with ODQ and PCS scores. Both 2-item screening questions were associated with FABQ-physical activity scores, while the fear of physical activity question was also associated with FABQ-work, TSK-11, PCS, and ODQ scores. CONCLUSION Therapists' ratings of perceived patient fear-avoidance were not associated with self-reported fear-avoidance scores, showing a potential disconnect between therapist judgments and commonly used fear-avoidance measures. Instead, therapist ratings had small but statistically significant correlations with pain catastrophizing and disability, findings that may support therapists' inability to discriminate fear-avoidance from these other factors. The 2-item screening questions based on fear of physical activity and harm showed potential to identify elevated FABQ physical activity scores. LEVEL OF EVIDENCE Differential diagnosis, level 2b.
Helminth infections of wild boars (Sus scrofa) in the Bursa province of Turkey

Abstract The present study aimed to investigate the status of helminth infections in wild boars in the Bursa province of Turkey. For this purpose, during 2007–2008, 27 wild boars were necropsied and examined for helminths. Individual samples of tongue and diaphragm from 27 necropsied wild boars and an additional 22 tongue and diaphragm samples provided by hunters were examined by trichinoscopy and artificial digestion for Trichinella spp. larvae. Twenty animals (74%) were identified as being infected with at least one helminth species. Twelve species of helminths were detected, with the following prevalence rates: Metastrongylus apri (59%), Metastrongylus salmi (52%), Metastrongylus pudendotectus (52%), Dicrocoelium dendriticum (33%), Globocephalus urosubulatus (22%), Macracanthorhynchus hirudinaceus (19%), Gongylonema pulchrum (11%), Physocephalus sexalatus (7%), Trichuris suis (7%), Ascarops strongylina (4%), Hyostrongylus rubidus (4%) and Taenia hydatigena larvae (4%). Generally, lungworms were the predominant helminths. The highest mean abundance was observed for M. pudendotectus, and the lowest was determined for T. hydatigena larvae. Significant differences in the prevalence and intensity were found for D. dendriticum with respect to host age and sex, respectively. The mean intensity of M. pudendotectus was significantly influenced by the sex and age of the wild boars. This study is the first report describing the presence of M. salmi, M. pudendotectus, D. dendriticum,G. urosubulatus, M. hirudinaceus, P. sexalatus, A. strongylina and H. rubidus in wild boars in Turkey. All analysed muscle samples were negative for Trichinella spp. larvae.
International Journal of High Performance Computing and Networking (ijhpcn) Optimizing Long-latency-load-aware Fetch Policies for Smt Processors

— Simultaneous Multithreading (SMT) processors fetch instructions from several threads and, in this way, the available Instruction Level Parallelism (ILP) of each thread is exposed to the processor. In an SMT processor the fetch engine has the additional level of freedom, compared to a super-scalar processor, to select independent instructions. The fetch engine determines how shared resources are allocated, playing a key role in the final performance of the machine. When a thread experiences an L2 cache miss, critical resources can be monopolized for a long time, throttling the execution of remaining threads. Several approaches have been proposed to cope with this problem. The first contribution of this paper is the evaluation and comparison of the three best published policies addressing the long latency load problem. The second and main contributions of this paper are that we have proposed improved versions of these three policies. Our results show that the improved versions significantly enhance the original ones in both throughput and fairness.
An intelligent system for semi-automatic evolution of ontologies

Ontologies are an important part of the Semantic Web as well as of many intelligent systems. However, the traditional expert-driven development of ontologies is time-consuming and often results in incomplete and inappropriate ontologies. In addition, since ontology evolution is not controlled by end users, it may take too long for a conceptual change in the domain to be reflected in the ontology. In this paper, we present a recommendation algorithm in a Web 2.0 platform that supports end users to collaboratively evolve ontologies by suggesting semantic relations between new and existing concepts. We use the Wikipedia category hierarchy to evaluate our algorithm and our experimental results show that the proposed algorithm produces high quality recommendations.
Heat shock and Cd2+ exposure regulate PML and Daxx release from ND10 by independent mechanisms that modify the induction of heat-shock proteins 70 and 25 differently

Nuclear domains called ND10 or PML bodies might function as nuclear depots by recruiting or releasing certain proteins. Although recruitment of proteins through interferon-induced upregulation and SUMO-1 modification level of PML had been defined, it is not known whether release of proteins is regulated and has physiological consequences. Exposure to sublethal environmental stress revealed a sequential release of ND10-associated proteins. Upon heat shock Daxx and Sp100 were released but PML remained, whereas exposure to subtoxic concentrations of CdCl2 induced the release of ND10-associated proteins, including PML, with Sp100 remaining in a few sites. In both cases, recovery times were similar and were followed by a burst of mitotic activity. Cadmium-induced release of proteins from ND10 could be blocked by inhibiting activation of p38 MAPK or ERK1/2. By contrast, heat-shock-induced desumolation of PML and release of proteins from ND10 are unaffected by these inhibitors but can be recapitulated by overexpression of the SUMO isopeptidase SENP-1. Therefore, activation of SENP-1-like SUMO isopeptidase(s) during heat shock is not affected by these kinases. Thus, the release of ND10-associated proteins is not due to a general dispersal of nuclear domains but seems to be regulated by rapid desumolation during thermal stress and through the phosphorylation cascade of stress and mitogenic signaling pathways in the case of CdCl2. Whether the release of certain proteins had consequences was tested for heat-shock-protein transcription and synthesis. Release of Daxx correlated with Hsp25 suppression, suggesting that Daxx normally inhibits immediate Hsp25 production. Release of PML correlated with lower production of Hsp70. These results suggest that segregation or release of PML or Daxx have differential physiological relevance during the stress response. The fact that enzymatic activation of protein release or segregation after stress modifies the heat-shock response strengthens the concept of ND10 as a regulated depot of effector proteins.
Impact of IT Unit's Decision Right on Organizational Risk Taking in IT

The objective of this study is to understand how the company’s risk$taking decisions in IT adoption are influenced by the decision right of its IT unit. The study builds a theoretical framework capturing how the IT unit’s decision right influences two determinants of risk taking, perceived risk and risk propensity. This framework also illustrates how the impacts of these two determinants on the actual actions of IT adoption are moderated by the IT unit’s decision right. The framework is empirically tested using a dataset on the adoption of electronic supply chain management (e$SCM) systems. The findings suggest that the IT unit’s decision right is not associated with the decrease in perceived risk. However, it is associated with the increase in risk propensity. Moreover, the IT unit’s decision right strengthens the positive association between risk propensity and e$SCM adoption, and weakens the nega tive association between perceived risk and e$SCM adoption.