Miracle-dz/UniFAR-FTUs huggingface dataset:
Automatic Product Name Recognition from Short Product Descriptions

This thesis studies the problem of product name recognition from short product descriptions. To approach the problem, we define it as a classification problem. Next we investigate and compare the performance of a set of hybrid solutions that combine machine learning and gazetteer-based approaches. We study a solution space that uses four learning models: linear and non-linear SVC, Random Forest, and AdaBoost. We divide the features into four groups: token-level features, document-level features, gazetteer-based features and frequency-based features. To evaluate the solutions, we develop a machine learning framework that automatically selects the optimal number of most relevant features, optimizes the hyper-parameters of the learning models, trains the learning models, and evaluates them. We conduct a set of experiments and based on the results, we answer the research questions of this thesis. Specifically, we determine (1) which learning models are more effective, (2) which feature groups contain the most relevant features, (3) what is the contribution of different feature groups to the overall performance, (4) how gazetteer-based features are incorporated into the machine learning solutions, and (5) how effective they are, (6) what the role of hyper-parameter optimization is and (7) which models are more sensitive to the hyper-parameter optimization.
Tunneling protocols identification using light packet inspection

Network traffic identification is an essential component for effective network analysis and management. Deep Packet Inspection is one of the main methods for traffic identification. DPI methods have high processing cost and require sufficient memory and CPU resources, which lead to the low efficiency. Furthermore, these methods search payload of the packets which may raise the privacy concern of the network users. In this paper we propose an approach for network tunneling protocols identification which is called Light Packet Inspection that overcomes the weaknesses of traditional DPI methods. We introduce major tunneling protocols such as IPsec, PPTP and OpenVPN communication mechanism in detail, and give an analysis of their packets and traffic behaviors. The experiment results show that the proposed approach can identify tunnels in the early period of time with high accuracy and low processing cost.
Identification, expression, and immunogenicity of Kaposi's sarcoma-associated herpesvirus-encoded small viral capsid antigen

We describe a recombinant antigen for use in serologic tests for antibodies to Kaposi's sarcoma (KS)-associated herpesvirus (KSHV). The cDNA for a small viral capsid antigen (sVCA) was identified by immunoscreening of a library prepared from the BC-1 body cavity lymphoma cell line induced into KSHV lytic gene expression by sodium butyrate. The cDNA specified a 170-amino-acid peptide with homology to small viral capsid proteins encoded by the BFRF3 gene of Epstein-Barr virus and the ORF65 gene of herpesvirus saimiri. KSHV sVCA was expressed from a 0.85-kb mRNA present late in lytic KSHV replication in BC-1 cells. This transcript was sensitive to phosphonoacetic acid and phosphonoformic acid, inhibitors of herpesvirus DNA replication. KSHV sVCA expressed in mammalian cells or Escherichia coli or translated in vitro was recognized as an antigen by antisera from KS patients. Rabbit antisera raised to KSHV sVCA expressed in E. coli detected a 22-kDa protein in KSHV-infected human B cells. Overexpressed KSHV sVCA purified from E. coli and used as an antigen in immunoblot screening assay did not cross-react with EBV BFRF3. Antibodies to sVCA were present in 89% of 47 human immunodeficiency virus (HIV)-positive patients with KS, in 20% of 54 HIV-positive patients without KS, but in none of 122 other patients including children born to HIV-seropositive mothers and patients with hemophilia, autoimmune disease, or nasopharyngeal carcinoma. Low-titer antibody was detected in three sera from 28 healthy subjects. Antibodies to recombinant sVCA correlate with KS in high-risk populations. Recombinant sVCA can be used to examine the seroepidemiology of infection with KSHV in the general population.
Epigenetic regulation of glucocorticoid receptor expression in aorta from mice with hyperhomocysteinemia

Hyperhomocysteinemia (HHcy) is a risk factor for vascular disease but its underlying molecular pathology is not understood. Homocysteine is metabolically linked to the epigenetic process of DNA methylation. Tissue-specific changes in DNA methylation have been observed in HHcy but little is known about vascular tissue. The objective of this study was to determine if changes in the epigenetic regulation of glucocorticoid receptor (GR) expression (encoded by Nr3c1) in aorta are associated with HHcy. C57BL/6 mice heterozygous for disruption of the cystathionine-β-synthase gene (Cbs +/-) and controls (Cbs +/+) were fed a control or high methionine/low folate (HH) diet to induce HHcy. Cbs +/- and Cbs +/+ fed the HH diet had higher plasma total homocysteine levels (19.9 ± 3.2 and 7.0 ± 0.9 μM, respectively) than Cbs +/+ mice fed the control diet (2.7 ± 0.2 μM), and this was accompanied by lower Nr3c1 mRNA and lower GR protein in aorta. The Nr3c1 gene contains multiple first exons producing heterogeneous RNA transcripts expressed in a tissue-specific manner. We identified expression of two transcripts in aorta. Bisulfite pyrosequencing found increased methylation of the promoter regions for these transcripts at sites corresponding to Sp1 and Nrf1 binding sites. Chromatin immunoprecipitation found lower binding of Nrf1 to the Nr3c1 promoter but higher expression of Nrf1 protein in aorta from mice with HHcy. These findings show methylation and silencing of vascular Nr3c1 expression and suggest a role for epigenetic regulation of gene expression in HHcy.
The fabrication of short metallic nanotubes by templated electrodeposition

Template-based electrochemical synthesis has widely been used to produce metal nanowires and nanorods. Commercially available filtration membranes, such as anodic aluminum oxide (AAO) and polycarbonate track etch membranes, have commonly been utilized as hard templates for this purpose. In this process, a thick metal film is usually sputtered or vacuum evaporated onto one side of the membrane to block the pores and serve as the working electrode for the subsequent electrodeposition. Here, we show that during the deposition of the metal electrode for AAO membranes, the electrode metal diffuses into the pores and is deposited on the pore walls which leads to preferential electrodeposition of metal on the walls and therefore forms metal tubes. This phenomenon has been utilized to fabricate short nanotubes by carefully controlling the electrodeposition conditions. The process is a straightforward method for any electroplatable materials to form nanoscale tubular structures. The effects of working electrodes and electrodeposition conditions on the formation of tubular structures are discussed in detail. A new mechanism based on this simple fact is proposed to explain the formation of Ni tubes by Ni–Cu co-deposition. Also, we demonstrate how to distinguish magnetic nanotubes from nanorods by a simple magnetic measurement.
Parallel magnetic resonance imaging reconstruction problems using wavelet representations. (Problèmes de reconstruction en imagerie par résonance magnétique parallèle à l'aide de représentations en ondelettes)

To reduce scanning time or improve spatio-temporal resolution in some MRI applications, parallel MRI acquisition techniques with multiple coils have emerged since the early 90's as powerful methods. In these techniques, MRI images have to be reconstructed from acquired undersampled « k-space » data. To this end, several reconstruction techniques have been proposed such as the widely-used SENSitivity Encoding (SENSE) method. However, the reconstructed images generally present artifacts due to the noise corrupting the observed data and coil sensitivity profile estimation errors. In this work, we present novel SENSE-based reconstruction methods which proceed with regularization in the complex wavelet domain so as to promote the sparsity of the solution. These methods achieve accurate image reconstruction under degraded experimental conditions, in which neither the SENSE method nor standard regularized methods (e.g. Tikhonov) give convincing results. The proposed approaches relies on fast parallel optimization algorithms dealing with convex but non-differentiable criteria involving suitable sparsity promoting priors. Moreover, in contrast with most of the available reconstruction methods which proceed by a slice by slice reconstruction, one of the proposed methods allows 4D (3D + time) reconstruction exploiting spatial and temporal correlations. The hyperparameter estimation problem inherent to the regularization process has also been addressed from a Bayesian viewpoint by using MCMC techniques. Experiments on real anatomical and functional data show that the proposed methods allow us to reduce reconstruction artifacts and improve the statistical sensitivity/specificity in functional MRI
Arachidonoyl‐Coenzyme A Synthetase and Nonspecific AcylCoenzyme A Synthetase Activities in Purified Rat Brain Microvessels

Abstract: Purified rat brain microvessels were prepared to demonstrate the occurrence of acyl‐CoA (EC 6.2.1.3) synthesis activity in the microvasculature of rat brain. Both ara‐chidonoyl‐CoA and palmitoyl‐CoA synthesis activities showed an absolute requirement for ATP and CoA. This activity was strongly enhanced by magnesium chloride and inhibited by EDTA. The apparent Km values for acyl‐CoA synthesis by purified rat brain microvessels were 4.0 μM and 5.8 μM for palmitic acid and arachidonic acid, respectively. The apparent Vmax values were 1.0 and 1.5 nmol min−1 mg protein−1 for palmitic acid and arachidonic acid, respectively. Cross‐competition experiments showed inhibition of radiolabelled arachidonoyl‐CoA formation by 15 μM unlabelled arachidonic acid, with a Ki of 7.1 μM, as well as by unlabelled docosahexaenoic acid, with a Ki of 8.0 μM. Unlabelled palmitic acid and arachidic acid had no inhibitory effect on arachidonoyl‐CoA synthesis. In comparison, radiolabelled palmitoyl‐CoA formation was inhibited competitively by 15 μM unlabelled palmitic acid, with a Ki of 5.0 μM and to a much lesser extent by arachidonic acid (Ki, 23 μM). The Vmax of palmitoyl‐CoA formation obtained on incubation in the presence of the latter fatty acids was not changed. Unlabelled arachidic acid and docosahexaenoic acid had no inhibitory effect on palmitoyl‐CoA synthesis. Both arachidonoyl‐CoA and palmitoyl‐CoA synthesis activities were thermolabile. Arachidonoyl‐CoA formation was inhibited by 75% after 7 min at 40°C whereas a 3‐min heating treatment was sufficient to produce the same relative inhibition of palmitoyl‐CoA synthesis. These data together strongly suggest that rat brain microvessels have the capacity to catalyze specifically the formation of acyl‐CoA derivatives from several polyunsaturated long‐chain fatty acids, including arachidonic acid in the first place. Besides this particular arachidonoyl‐CoA synthetase, palmitic acid could be activated with the aid of a second acyl‐CoA synthetase.
SPONSORSHIP AS PROMOTIONAL CUES

When detailed product information is not available to consumers inferences are made using product cues to reduce uncertainty and to form perceptions of products. Advertisers can make use of sport sponsorship and sport celebrity endorsement as extrinsic cues to influence consumers’ pre-purchase attitudes. These cues are expensive forms of advertising. Managers need to establish whether they provide a satisfactory return on investment. This study explored consumers’ attitudes and the effect of sport event sponsorship and sport celebrity endorsement on key brand/manufacturer related variables such as brand quality, product uniqueness, manufacturer esteem and corporate citizenship. A total number of 201 respondents participated in the study. A non-probability sample was used. Results indicate that sport event sponsorship was perceived by participants as a product uniqueness, manufacturer esteem and corporate citizenship cue, significantly enhancing responses on product related variables. The sport celebrity endorsement cue had a significant effect on uniqueness and esteem, but did not significantly influence brand quality. Using these results managers can substantiate the use of sport event sponsorship to increase consumers’ pre-purchase attitudes of product uniqueness, manufacturer esteem and corporate citizenship; and sport celebrity endorsement to increase their pre-purchase attitudes of product uniqueness and manufacturer esteem; thus positively affecting consumers’ pre-purchase attitudes that may influence buyer behaviour.
Partial-scrambling of images encoded using JPEG2000 without generating marker codes

A method is described for efficient partial-scrambling of JPEG2000 images that avoids generating marker codes and improves the ability to control the degree, strength, and computational complexity of scrambling. This higher control ability is due to the use of a parameter. This parameter also controls the scrambling time, an important consideration for real-time processing.
Individual and socioeconomic factors associated with childhood immunization coverage in Nigeria

Introduction Immunization is the world’s most successful and cost-effective public health intervention as it prevents over 2 million deaths annually. However, over 2 million deaths still occur yearly from Vaccine preventable diseases, the majority of which occur in sub-Saharan Africa. Nigeria is a major contributor of global childhood deaths from VPDs. Till date, Nigeria still has wild polio virus in circulation. The objective of this study was to identify the individual and socioeconomic factors associated with immunization coverage in Nigeria through a secondary dataset analysis of Nigeria Demographic and Health Survey (NDHS), 2013. Methods A quantitative analysis of the 2013 NDHS dataset was performed. Ethical approvals were obtained from Walden University IRB and the National Health Research Ethics Committee of Nigeria. The dataset was downloaded, validated for completeness and analyzed using univariate, bivariate and multivariate statistics. Results Of 27,571 children aged 0 to 59 months, 22.1% had full vaccination, and 29% never received any vaccination. Immunization coverage was significantly associated with childbirth order, delivery place, child number, and presence or absence of a child health card. Maternal age, geographical location, education, religion, literacy, wealth index, marital status, and occupation were significantly associated with immunization coverage. Paternal education, occupation, and age were also significantly associated with coverage. Respondent's age, educational attainment and wealth index remained significantly related to immunization coverage at 95% confidence interval in multivariate analysis. Conclusion The study highlights child, parental and socioeconomic barriers to successful immunization programs in Nigeria. These findings need urgent attention, given the re-emergence of wild poliovirus in Nigeria. An effective, efficient, sustainable, accessible, and acceptable immunization program for children should be designed, developed and undertaken in Nigeria with adequate strategies put in place to implement them.
Applying Adaptive Notch Filter in αβ-coordinate to improve 3-phase 4-wire shunt APF performance under non-ideal PCC voltage

In this paper, the 3-phase 4-wire Shunt Active Power Filter (ShAPF) dealing with non-ideal Point of Common Coupling (PCC) voltages will be presented. The Adaptive Notch Filter (ANF) processes those non-ideal PCC voltages directly in αβ-coordinate where instantaneous power theory is applied. The simulation results proved that the ANF successfully facilitates the ShAPF comparing to the conventional dq-filter method.
Indexação de Documentos Clínicos

Hoje em dia o acesso a informacao estruturada e bem organizada e cada vez mais essencial no planeamento, desenvolvimento e desempenho de uma empresa. No meio clinico o acesso a este tipo de informacao influencia os servicos prestados pelas entidades medicas, uma vez que a informacao encontra-se demasiado dispersa por diversas fontes. Torna-se assim claro que inovar o acesso a informacao nestes servicos e essencial para melhorar a eficiencia e qualidade dos mesmos. Na perspetiva de melhorar estes servicos, surge a solucao de indexacao de documentos clinicos, que possibilita a extracao de diversos documentos com diversos formatos de uma base de dados da Glintt, e indexa e disponibiliza a sua informacao numa area de pesquisa. Os formatos em causa podem ser PDF, Word, XML, JSON entre outros. Relativamente ao conteudo da informacao temos por exemplo: resultados analiticos laboratoriais, relatorios clinicos, diagnosticos codificados em ICD-9, notas clinicas dos medicos, requisicoes de exames, prescricoes de medicamentos e informacao demografica de pacientes. Como forma de reduzir os pedidos a base de dados em causa e, para uma maior uniformizacao da informacao segue-se a norma EHR enquanto que, para fins de indexacao, utiliza-se o Solr.Este projeto destina-se a profissionais de saude e, por isso, disponibiliza uma forma centralizada e pesquisavel de obter todos os dados clinicos de um doente/paciente assim como a informacao documental correspondente.Dito isto, a solucao pretende causar um forte impacto no dia-a-dia dos profissionais de saude assim como nos seus pacientes, tornando o acesso a informacao clinica mais rapido e simples.
Contribuições da Teoria Ator-Rede para o Estudo da Sustentabilidade

A sustentabilidade, hoje tema tao em voga, tem suas origens na questao ambiental. Pode-se dizer que a base dos problemas ambientais remonta ao inicio da ciencia, onde o homem, afastando-se da natureza, busca melhor compreende-la e desenvolver tecnicas para domina-la. Na decada de 80, com a promulgacao da ideia de desenvolvimento sustentavel, a questao social mostra-se intrinsicamente relacionada a ambiental, ja nao sendo possivel trata-las de modo isolado. Sendo assim, o presente ensaio tem por objetivo apresentar as contribuicoes da Teoria Ator-Rede (TAR) para o estudo da sustentabilidade nas organizacoes. Esta traz contribuicoes importantes para os estudos na area, por se tratar de um a teoria que propoe uma modificacao em relacao ao que se entende por “social”, avancando-se para uma sociologia de associacoes, onde humanos e nao-humanos tem poder de agencia. Considerando, de forma especifica, os conceitos utilizados pela TAR, nota-se que, especialmente os conceitos de simetria, hibridos, redes, sociologia das associacoes fornecem ricas discussoes no que tange a sustentabilidade.
A method of latent semantic information mining for trajectory data

To explore the potential characteristics of trajectory data, this paper presents a method of latent semantic information mining for trajectory data (T-LSD. We aim to solve the problem of structuring the spatio-temporal data and discovering potential patterns from the trajectory data. First, a vector space model is proposed for trajectory data. Then, by the singular value decomposition of the trajectory matrix, we extract its low-dimensional semantic subspace to further mining its latent semantic information. Finally, we evaluate this research method with a mass of practical trajectory data, which has a total mileage of more than three million kilometers. The experimental results showed that this approach can be employed to analyze the potential characteristics of road network with trajectory data, and can be further used to uncover the driving behavior patterns.
El Liderazgo y su relación con la Satisfacción de los Clientes: un enfoque teórico

En toda organizacion es importante que cada grupo tenga una estructura establecida, en donde siempre existira quienes asuman un mayor grado de responsabilidad, evaluen, tomen decisiones y tengan su enfoque basado en los objetivos organizacionales. Por ello, es muy natural que en cualquier grupo de trabajo sobresalga un lider, el cual contribuye con el desarrollo y logro de los objetivos establecidos. Existen varios tipos de liderazgo, pero sea cual sea el perfil del mismo, el objetivo principal debera ir encaminado a dirigir al grupo hacia el exito y en el entorno empresarial no es una excepcion. Para que el cliente perciba un buen servicio y se encuentre satisfecho con el mismo, el empleado debera sentirse motivado, es por ello la importancia de la figura del lider. Palabras claves: Liderazgo, decisiones, motivacion, satisfaccion de cliente.
NK- and CD8+ T Cell-Mediated Eradication of Established Tumors by Peritumoral Injection of CpG-Containing Oligodeoxynucleotides1

Unmethylated cytosine-phosphorothioate-guanine (CpG) containing oligodeoxynucleotides (CpG-ODN) are known to act as adjuvants and powerful activators of the innate immune system. We investigated the therapeutic effect of CpG-ODN on a variety of established mouse tumors including AG104A, IE7 fibrosarcoma, B16 melanoma, and 3LL lung carcinoma. These tumors are only weakly immunogenic and notoriously difficult to treat. Repeated peritumoral injection of CpG-ODN resulted in complete rejection or strong inhibition of tumor growth, whereas systemic application had only partial effects. The CpG-ODN-induced tumor rejection was found to be mediated by both NK and tumor-specific CD8+ T cells. Comparison of parental tumors and variants rendered more antigenic by transfection with tumor Ags suggested that the efficiency of the CpG-ODN therapy correlated with the antigenicity of the tumors. Peritumoral CpG-ODN treatment was even effective in a situation where the immune system was tolerant for the tumor Ag, as shown by breakage of tolerance and tumor elimination. These results suggest that peritumoral application of CpG-ODN acts locally by inducing NK cells, and also leads to efficient presentation of tumor Ags and stimulation of CD8+ effector and memory T cells, thus providing a powerful antitumor therapy that can be also applied without knowledge of the tumor Ag.
Stress gastric ulcer after cardiac surgery: Pathogenesis risk factors and medical management

Stress ulcer lesions of upper gastrointestinal tract are well recognized in patients undergoing open cardiac surgery. Gastrointestinal bleeding following cardiac surgery is infrequent with significant morbidity and mortality. The pathogenesis of mucosal lesions and subsequent haemorrhage is complex and multifactorial. The diagnosis as well as the treatment of this complication remains a challenge for surgeons. Identifying the source of bleeding can be difficult. Despite of the successful control of haemorrhage using various combinations of endoscopic and pharmacological therapies, the mortality rate remains unchanged. Benefit of routine stress ulcer prophylaxis remains controversial.
Wireless LAN Based GPRS Support Node

This paper proposes WLAN-based GPRS Support Node (WGSN), a solution for integrating 3G and WLAN services. We show that the 3G mechanisms can be re-used for WLAN user authentication and network access without introducing new procedures and without modifying the existing 3G network components. We describe the WGSN features and show how they are designed and implemented. A WGSN prototype has been implemented in Industrial Technology Research Institute (ITRI) and National Chiao-Tung University (NCTU) Joint Research Center.