31 research outputs found

    Inteligência empresarial intermedia e a relação entre a orientação para o mercado e o empresariado

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    The purpose of this study was to investigate the effect of market orientation on business performance through the role of business intelligence intermediary in the EN bank. this research is a descriptive survey. The statistical population of this study is 250 people from the EN bank. Structural equation modeling and LISREL software were used to analyze the data. The results indicate that the dimensions of market orientation (customer orientation, and inter-task coordination) have a significant effect on business performance. However, the effect of customer orientation on the performance of the EN bank business is more than other factors. The results also show that market orientation has a positive impact on business performance through the intermediary variable of business intelligence. However, senior management of banks, based on business intelligence, must operate in a manner towards market orientation, which is part of corporate culture and bank values, and all executives and employees are committed in practice, and Release information about customer needs that lead to higher performance.El propósito de este estudio fue investigar el efecto de la orientación del mercado en el desempeño del negocio a través del rol de intermediario de inteligencia de negocios en el banco EN. Esta investigación es una encuesta descriptiva. La población estadística de este estudio es de 250 personas del banco EN. Se utilizaron modelos de ecuaciones estructurales y software LISREL para analizar los datos. Los resultados indican que las dimensiones de la orientación del mercado (orientación al cliente y coordinación entre tareas) tienen un efecto significativo en el rendimiento del negocio. Sin embargo, el efecto de la orientación al cliente sobre el desempeño del negocio bancario EN es más que otros factores. Los resultados también muestran que la orientación al mercado tiene un impacto positivo en el rendimiento del negocio a través de la variable intermedia de inteligencia de negocios. Sin embargo, la alta gerencia de los bancos, basada en inteligencia empresarial, debe operar de una manera orientada hacia el mercado, que forma parte de la cultura corporativa y los valores bancarios, y todos los ejecutivos y empleados están comprometidos en la práctica, y divulgar información sobre las necesidades del cliente que llevan a mayor rendimiento.O objetivo deste estudo foi investigar o efeito da orientação do mercado sobre o desempenho dos negócios através do papel do intermediário de inteligência de negócios no banco EN. Esta pesquisa é uma pesquisa descritiva. A população estatística deste estudo é de 250 pessoas do banco EN. A modelagem de equações estruturais e o software LISREL foram utilizados para analisar os dados. Os resultados indicam que as dimensões de orientação para o mercado (orientação ao cliente e coordenação entre tarefas) têm um efeito significativo no desempenho dos negócios. No entanto, o efeito da orientação do cliente no desempenho do negócio do banco EN é mais do que outros fatores. Os resultados também mostram que a orientação para o mercado tem um impacto positivo no desempenho dos negócios por meio da variável intermediária de business intelligence. No entanto, a gerência sênior dos bancos, baseada em business intelligence, deve operar de forma orientada para o mercado, que faz parte da cultura corporativa e dos valores bancários, e todos os executivos e funcionários estão comprometidos na prática. maior desempenho

    Optimal and Objective Placement of Sensors in Water Distribution Systems Using Information Theory

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    Optimization-based deployment of contamination warning system in water distribution systems has been widely used in the literature, due to their superior performance compared to rule- and opinion-based approaches. However, optimization techniques impose an excessive computational burden, which in turn is compensated for by shrinking the problem’s decision space and/or using faster optimization algorithms with less accuracy. This imposes subjectivity in interpretation of the system and associated risks, and undermines model’s accuracy by not exploring the entire feasible space. We propose a framework that uses information theoretic techniques, including value of information and transinformation entropy, for optimal sensor placement. This can be used either as pre-selection, i.e. pinpointing best potential locations of sensors to be in turn used in optimization framework, or ultimate selection, i.e. single-handedly selecting sensor locations from the feasible space. The proposed framework is then applied to Lamerd water distribution system, in Fars province, Iran, and the results are compared to the suggested potential locations of sensors in previous studies and results of TEVA-SPOT model. The proposed information theoretic scheme enhances the decision space, provides more accurate results, significantly reduces the computational burden, and warrants objective selection of sensor placement

    A dermatopathic Juvenile Dermatomyositis; An Unexpected Case in Childhood

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    Abstract Juvenile dermatomyositis (JDM) is a rare idiopathic inflammatory disease which usually presents with skin rashes along with muscle weakness. We report a case of JDM in a 10- year-old girl with no skin manifestations.She was presented with progressive muscle weakness and fatigue. Further laboratory investigation along with a muscle biopsy confirmed the diagnosis of Adermathopathic Juvenile Dermatomyositis. The patient was treated with intravenous immunoglobulin, corticosteroids, methotrexate, hydroxychloroquine, pamidronate, and Rituximab.Following treatment, patients symptoms subsided and she gained normal muscular strength over the course of a year

    Semantic-Preserving Feature Partitioning for Multi-View Ensemble Learning

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    In machine learning, the exponential growth of data and the associated ``curse of dimensionality'' pose significant challenges, particularly with expansive yet sparse datasets. Addressing these challenges, multi-view ensemble learning (MEL) has emerged as a transformative approach, with feature partitioning (FP) playing a pivotal role in constructing artificial views for MEL. Our study introduces the Semantic-Preserving Feature Partitioning (SPFP) algorithm, a novel method grounded in information theory. The SPFP algorithm effectively partitions datasets into multiple semantically consistent views, enhancing the MEL process. Through extensive experiments on eight real-world datasets, ranging from high-dimensional with limited instances to low-dimensional with high instances, our method demonstrates notable efficacy. It maintains model accuracy while significantly improving uncertainty measures in scenarios where high generalization performance is achievable. Conversely, it retains uncertainty metrics while enhancing accuracy where high generalization accuracy is less attainable. An effect size analysis further reveals that the SPFP algorithm outperforms benchmark models by large effect size and reduces computational demands through effective dimensionality reduction. The substantial effect sizes observed in most experiments underscore the algorithm's significant improvements in model performance.Comment: 45 pages, 44 figures, 26 table

    Nanohydroxyapatite Silicate-Based Cement Improves the Primary Stability of Dental Implants: An In Vitro Study

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    Objectives. Insufficient cortical bone volume when placing implants can lead to lack of primary stability. The use of cement as a bone fill material in bone defects around dental implant could result in better clinical outcome. HA has shown excellent biological properties in implant dentistry. The purpose of this study was to evaluate the effect of nanohydroxyapatite powder (Nano-HA) in combination with accelerated Portland cement (APC) on implant primary stability in surgically created circumferential bone defects in a bovine rib in vitro model. Materials and Methods. Sixteen bovine rib bones and thirty-six implants of same type and size (4 mm × 10 mm) were used. Implants were divided into six groups: no circumferential bone defect, defect and no grafting, bone chips grafting, Nano-HA grafting, APC grafting, and Nano-HA mixed to APC grafting (Nano-HA-APC). Circumferential defects around the implants were prepared. The implant stability quotient (ISQ) values were measured before and after the grafting. Results. APC exhibited the highest ISQ values. A significant increase of ISQ values following the grafting of Nano-HA-APC (18.08±5.82) and APC alone (9.50±4.12) was achieved. Increase of ISQ values after 72 hours was 24.16±5.01 and 17.58±4.89, respectively. Nano-HA grafting alone exhibited the least rise in ISQ values. Conclusions. Nanohydroxyapatite silicate-based cement could improve the primary stability of dental implants in circumferential bone defect around implants

    Prevalence of Shielding in Diagnostic X-ray Centers in the Islamic Republic of Iran: A Systematic Review

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    Shielding has been recommended as an effective tool against radiation exposure. Several studies have published on the availability and use of shielding tools in diagnostic X-ray centers across the country and contradictory results been reported. Therefore, the aim of this systematic review was to find out the status of radiation protection in term of availability and use of shielding tools in diagnostic X-ray centers in Iran. An extensive literature search was conducted in the PubMed/Medline, Embase, ISI, Cochrane Library, SID, Magiran, IranMedex, Irandoc and Google-Scholar search engine. We also manually searched the reference lists of the relevant studies. Two authors independently assessed the eligibility of all studies and extracted data. Thirty-seven studies published from 1998 to 2019 were included in this systematic review. In all, 1089 diagnostic X-ray centers, 4439 radiographs and performance of 1472 radiographers were covered in these studies. The availability of lead apron, gonad shield and thyroid collar were ranged from 7 to 95.5%, 26.6 to 94% and 7 to 94%, respectively. Moreover, their usage was ranged from 0 to 85.5%, 0 to 35% and 0 to 38.4%, respectively. In addition, lens shield was discussed in one study with availability of 0%. During 1998 to 2019, the status of shielding had not improved across the country. Therefore adherence to the safety guideline as far as possible is required to protection patients from undue exposure to radiation

    Prevalence of Shielding in Diagnostic X-ray Centers in the Islamic Republic of Iran: A Systematic Review

    Get PDF
    Shielding has been recommended as an effective tool against radiation exposure. Several studies have published on the availability and use of shielding tools in diagnostic X-ray centers across the country and contradictory results been reported. Therefore, the aim of this systematic review was to find out the status of radiation protection in term of availability and use of shielding tools in diagnostic X-ray centers in Iran. An extensive literature search was conducted in the PubMed/Medline, Embase, ISI, Cochrane Library, SID, Magiran, IranMedex, Irandoc and Google-Scholar search engine. We also manually searched the reference lists of the relevant studies. Two authors independently assessed the eligibility of all studies and extracted data. Thirty-seven studies published from 1998 to 2019 were included in this systematic review. In all, 1089 diagnostic X-ray centers, 4439 radiographs and performance of 1472 radiographers were covered in these studies. The availability of lead apron, gonad shield and thyroid collar were ranged from 7 to 95.5%, 26.6 to 94% and 7 to 94%, respectively. Moreover, their usage was ranged from 0 to 85.5%, 0 to 35% and 0 to 38.4%, respectively. In addition, lens shield was discussed in one study with availability of 0%. During 1998 to 2019, the status of shielding had not improved across the country. Therefore adherence to the safety guideline as far as possible is required to protection patients from undue exposure to radiation

    Hemoglobin Q-Iran detected in family members from Northern Iran: a case report

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    <p>Abstract</p> <p>Introduction</p> <p>Hemoglobin Q-Iran (α75Asp→His) is an important member of the hemoglobin Q family, molecularly characterized by the replacement of aspartic acid by histidine. The first report of hemoglobin Q-Iran and the nomenclature of this hemoglobinopathy dates back to 1970. Iran is known as a country with a high prevalence of α- and β-thalassemia and different types of hemoglobinopathy. Many of these variants are yet to be identified as the practice of molecular laboratory techniques is limited in this part of the world. Applying such molecular methods, we report the first hemoglobin Q-Iran cases in Northern Iran.</p> <p>Case presentation</p> <p>An unusual band was detected in an isoelectric focusing test and cellulose acetate electrophoresis of a sample from a 22-year-old Iranian man from Mazandaran Province. Capillary zone electrophoresis analysis identified this band as hemoglobin Q. A similar band was also detected in his mother's electrophoresis (38 years, Iranian ethnicity). The cases underwent molecular investigation and the presence of a hemoglobin Q-Iran mutation was confirmed by the amplification refractory mutation system polymerase chain reaction method. Direct conventional sequencing revealed a single guanine to cytosine missense mutation (c.226G > C; <it>G</it>AC ><it>C</it>AC) at codon 75 in the α-globin gene in both cases.</p> <p>Conclusion</p> <p>The wide spectrum and high frequency of nondeletional α-globin mutations in Mazandaran Province is remarkable and seem to differ considerably from what has been found in Mediterranean populations. This short communication reports the first cases of patients with hemoglobin Q found in that region.</p

    A Robust Decision Support Leader-Follower Framework for Design of Contamination Warning System in Water Distribution Network

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    In recent years, several models have been proposed to inoculate Water Distribution Systems (WDS) against impacts of accidental and/or intentional compromised water quality through optimal deployment of online monitoring sensors in the network, which is referred to as Contamination Warning Systems (CWS). Translating such modeling efforts to real-world practice is, however, a challenge as different involved parties may pursue conflicting goals and modeling-based recommendations may not justify all stakeholders’ criteria. It is, hence, pivotal to develop conflict resolution methodologies to support engagement of different stakeholders in securing a safe water distribution. The decision making structure for CWS design is often of top-down nature, with the upper level decision maker concerned mainly about public safety and lower level stakeholders concerned about operational costs. In this study, a decision support framework based on Leader-Follower Game is proposed, given different power levels. Leader’s objectives are focused on the CWS robustness, while followers have conflicting interests that are in turn resolved via Nash Bargaining method. Lamerd WDS (Fars, Iran) is selected to assess the proposed model’s performance. The results show the proposed objective and parsimonious model provides a robust solution that complies with the leader’s criteria and maximizes the followers’ satisfaction. The proposed decision support system helps govern WDSs in a resilient and safe manner and warrants practical implementation of modeling-based security assurance policies to provide sustainable service to the society
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