Miracle-dz/UniFAR-FTUs huggingface dataset:
Retracted: An Empirical Study of an Internet Marketing Strategy for Search Engine Optimization

Over the past few years, more and more Internet visitors are reaching websites through search engines rather than through direct links from another web page. Search engines have come to occupy a prominent position in the online world and are being used to find all kinds of information including things, events, people, and places. The search engine is also coming to play a greater role as a critical link between firms that use the Internet to build their image and find their target customers. How to achieve a high ranking in such search results given certain search words or phrases has become an issue of much interest in Internet marketing. The purpose of the current study is to develop a search engine optimization (SEO) mechanism that can be used by an enterprise to improve the ranking of its website in the search engine results. Social networking sites are included in our exploration of Internet marketing strategy. The proposed mechanism is then applied in the operations of an online ebook store. The website rankings obtained from two well‐known online search engines (Google and Yahoo) are evaluated in efforts to explore a better strategy to ensure higher rankings. The results reveal that a well‐designed SEO strategy, with the incorporation of social networking, can effectively enhance the website's visibility and exposure. Such a strategy will eventually contribute to overall site traffic and improve interaction with customers. © 2012 Wiley Periodicals, Inc.
Defining the visual adaptation field for mesopic photometry: Does surrounding luminance affect peripheral adaptation?

CIE 191:2010 recommends a mesopic photometry system that defines the luminous efficiency function for peripheral visual tasks, which vary depending on the adaptation state of observers. For implementation of the system, an adaptation field to determine the adaptation state needs to be defined. To address this issue, vision experiments have been conducted to measure surrounding luminance effects on the adaptation state at a peripheral task point. The results reveal that the adaptation state depends mainly on the local luminance at the task point but there is also a small effect of the surrounding luminance. The results suggest that the surrounding luminance effect is larger than the veiling luminance predicted with existing foveal models; nevertheless, it is not significant for the mesopic luminance on uniform luminance distributions.
Automatic steering of ships using neural networks

Ship steering control system design presents challenges because the dynamic properties of the vessel itself vary significantly. The use of an artificial neural network as a controller which incorporates the properties of a series of conventional controllers designed for different operating conditions could provide an alternative to adaptive control or gain scheduling in this application. Local model network methods could also provide a basis for efficient modelling of the vessel over a range of operating conditions. The paper describes an investigation of radial basis function networks for ship steering control and of local model networks for representation of ship dynamics. Performance is demonstrated by a series of simulation studies. Copyright © 1999 John Wiley & Sons, Ltd.
Computerised dynamic Gantt-chart for maintenance scheduling and management

The static Gantt-chart accommodates planned dates for preventative maintenance, or eventually planned maintenance. This is converted to a dynamic Gantt-chart to deal with situations involving on-line analysis for real-time maintenance signatures providing predictive functions, in addition to breakdown situations. This is in addition to the planned preventative maintenance. Thus, the work presents a proposed software design for a complete maintenance scheduling and management system. The system considers the integration of maintenance and the other manufacturing activities. Meanwhile, the related interfaces are also defined. The output of the system is a daily maintenance work plan, listed on a display for the maintenance team, so they can perform the required every day maintenance operations.
THE SAND ENGINE: A SOLUTION FOR VULNERABLE DELTAS IN THE 21

The Netherlands’ strategy to combat coastal erosion since 1990 has been through nourishment, initially as beach nourishments but more and more as shoreface nourishments. In the light of sea level rise projections t he yearly nourishment magnitudes continue to increase. In vie w of this an innovative soft engineering interventi on, comprising an unprecedented 21 Mm 3 sand nourishment known as the Sand Engine, has recently been implemented in the Netherlands. The Sand Engine nourishment is a pilot project to test the effectiveness and efficiency o f a local meganourishment as a measure to account for the anticip ated increased coastal recession in this century. T he proposed concept, a single mega-nourishment, once every 20 years, is expected to be more efficient and effectiv e in the long term than traditional beach and shoreface nourishme nts, presently being used at the Dutch coast with t ypically a three to five year interval. While the judgement is still out on this globally unique intervention, if prove n successful, it may well become a generic solution for combating sea le vel rise driven coastal recession on open and vulne rable coasts.
Improved binding affinity of the Omicron’s spike protein with hACE2 receptor is the key factor behind its increased virulence

The new variant of SARS-CoV-2, Omicron, has been quickly spreading in many countries worldwide. Compared to the original virus, Omicron is characterized by several mutations in its genomic region, including spike protein’s receptor-binding domain (RBD). We have computationally investigated the interaction between RBD of both wild-type and omicron variants with hACE2 receptor using molecular dynamics and MM-GBSA based binding free energy calculations. The mode of the interaction between Omicron’s RBD to the human ACE2 (hACE2) receptor is similar to the original SARS-CoV-2 RBD except for a few key differences. The binding free energy difference shows that the spike protein of Omicron has increased binding affinity for the hACE-2 receptor. The mutated residues in the RBD showed strong interactions with a few amino acid residues of the hACE2. More specifically, strong electrostatic interactions (salt bridges) and hydrogen bonding were observed between R493 and R498 residues of the Omicron RBD with D30/E35 and D38 residues of the hACE2, respectively. Other mutated amino acids in the Omicron RBD, e.g. S496 and H505, also exhibited hydrogen bonding with the hACE2 receptor. The pi-stacking interaction was also observed between tyrosine residues (RBD-Tyr501: hACE2-Tyr41) in the complex, which contributes majorly to binding free energies suggesting this as one of the key interactions stabilizing the complex formation. The structural insights of RBD:hACE2 complex, their binding mode information and residue wise contributions to binding free energy provide insight on the increased transmissibility of Omicron and pave the way to design and optimize novel antiviral agents.
MCF-7, ACHN, and A549 Cancer Cells Characterized by Quantitative Magnetic Resonance Imaging In Vitro

To work with cancer cell cultures in vitro at 1.5 Tesla Magnetic Resonance Imaging (MRI), it was necessary to develop dedicated receiver coils. This device allowed to adjust the shape of the tested objects and thus improve the quality of imaging. One of the conditions for this new device was to increase the recorded signal level and reduce the distance between the tested object and the receiving elements of the coil. MCF7 (breast adenocarcinoma, Her-2 positive), ACHN (kidney cancer cells), and A549 (lung cancer cells) were characterized by using magnetic resonance imaging (MRI) in vitro. MRI measurements were performed using the clinical scanner with a 1.5 Tesla magnetic field. MCF-7, ACHN, and A549 cancer cells were characterized by T1 and T2 relaxation times. For MCF-7 cells, the relaxation times T1 and T2 were 2360 ± 12 ms and 116 ± 0.9 ms, respectively. For ACHN cells, the relaxation times T1 and T2 were 1354 ± 193 ms and 80 ± 9 ms, respectively. Values of T1 and T2 for A549 cancer cells cultures were 1527 ± 59 ms and 150 ± 8 ms, respectively. Once an accurate pulse protocol has been established and satisfactory reproducibility was obtained, the determination of relaxation times can be used as a tool to monitor cancer cell cultures using MRI in vitro based on the determination of changes in relaxation times.
Measuring readiness for successful information technology/information system (IT/IS) project implementation: A conceptual model

Many investigation have shown that the introduction of new investment in information technology/ information system (IT/IS) are profoundly affecting the processes, work environment, structures and strategies of an organization. This is due to the fact that new IT/IS will lies in changing the people system or better known as ‘soft issue’. The resistance to change might occur due to lack of creating a sense of need and urgency for change among the employee and consequently might lead to the IT/IS project failure. Therefore, to reduce the resistance to change among the employee, it is essential that an organisation needs to determine the level of readiness for change prior the introduction of new IT/IS implementation by measuring its internal capabilities. A failure to assess organisational readiness prior the IT/IS implementation may result in mangers spending more time dealing with the resistance to change or even worst may result in IT/IS failure. To date most of the traditional IT/IS performance measures are based on productivity and process, which focus mainly on method of investment appraisal and become obsolete and suffered with a many problem. Furthermore, majority of current IT/IS performance measure approaches are mainly post-investment measures which fail to address the readiness issues. On top of that, there are constantly lacks of understanding of the human and organisational issue in the current IT/IS measurement approaches. Those approaches also lack holistic perspective on IT/IS which unable to describe the complex impacts within organizations. Therefore, this paper will address the issue of organisation readiness prior IT/IS implementation. A proposed IT/IS maturity model is developed as an attempt to address the problem issues with current IT/IS measurement approaches. This model has been designed to measure the capability of organisation to “successfully implement IT systems” and it is applicable across industries. The idea is to provide managers with measurement tools to enable them to identify where improvements are required within their organisation and to indicate their readiness prior to IT investment. This model investigates four organisational key elements: IT, environment, process and people, and is composed of six progressive stages of maturity that a company can achieve its IT/IS capabilities.
Design of multiple viscoelastic tuned mass dampers for floor vibration applications

Floor vibration due to human activities is becoming a significant concern to designers and developers of long span lightweight floor systems. Modern office floors have been constructed with longer spans and smaller structural members. Actual office dead loads and floor damping are significantly lower than what they were in the past, increasing the potential for annoying floor vibration. Traditional techniques to reduce vibrations through structural modifications have some serious shortcomings, especially with existing structures. This paper discusses the effectiveness of an innovative configuration for a tuned mass damper (TMD) using viscoelastic material in rectifying problematic floors. In particular, the paper develops general analytical formulae to predict the response of a floor fitted with multiple identical TMDs. New optimum parameters for the TMD have been recommended based on numerical simulation studies. The design of a multiple viscoelastic damper system for an existing office floor is also presented.
A Pointwise Evaluation Metric to Visualize Errors in Machine Learning Surrogate Models

Numerical simulation is widely used to study physical systems, although it can be computationally too expensive. To counter this limitation, a surrogate may be used, which is a high-performance model that replaces the main numerical model by using, e.g., a machine learning (ML) regressor that is trained on a previously generated subset of possible inputs and outputs of the numerical model. In this context, inspired by the definition of the mean squared error (MSE) metric, we introduce the pointwise MSE (PMSE) metric, which can give a better insight into the performance of such ML models over the test set, by focusing on every point that forms the physical system. To show the merits of the metric, we will create a dataset of a physics problem that will be used to train an ML surrogate, which will then be evaluated by the metrics. In our experiment, the PMSE contour demonstrates how the model learns the physics in different model regions and, in particular, the correlation between the characteristics of the numerical model and the learning progress can be observed. We therefore conclude that this simple and efficient metric can provide complementary and potentially interpretable information regarding the performance and functionality of the surrogate.
Synthesis formulas for coplanar lines in hybrid and monolithic MICs

Very accurate closed-form formulas for coplanar strip synthesis, which are approximated in terms of ordinary functions, are developed. The accuracy is found to be better than 1% for most of the practical range, compared with the results from quasi-static analysis and full-wave analysis. The formulas developed here for coplanar strips, together with those for coplanar waveguides presented previously, represent a complete set of synthesis formulas for the design of coplanar lines in hybrid and monolithic microwave integrated circuits.
Transformational Leadership: Principal Intellectual Stimulation In Improving Teacher Competences

Various efforts have been made to improve teacher competence, but there are still many institutions that have not optimized teacher capacity development. This study examines the intellectual stimulation of principals in improving teacher competence in two favorite institutions in the East Java region of SDI Qurrota A'yun Tulungagung and MI Perwanida Blitar. This study uses a qualitative descriptive method with a multi-case study design. Data were collected through 16 teachers and one school committee, one student guardian, one community leader, and one employee determined by random purposive sampling. Information was obtained through interviews, documentation, and observation. The results of this study indicate the role of leaders in forming various teacher competency improvement programs; (a) Program in-service education. The leader delegates teachers to improve professional and pedagogical competencies, which consist of advanced study programs, equivalency studies, Teacher Professional Education (PPG), (b) Program in-service training. Leaders delegate teachers to improve pedagogical and professional competencies through training activities, seminars, workshops, and webinars. (c) Leaders conducted program on-service training as a facility to improve teacher competence, (1) Supervision Activities and Teacher Working Groups (KKG), (2) teachers are actively competing, (3) actively writing papers, (4) collaboration activity, (5) social service activities, (6) religious activity (7) Job rotation, (8) Curriculum integration according to the institution's development distinction, (9) Technology-based learning.
Comparative study between bone ages: Carpal, Metacarpophalangic, Carpometacarpophalangic Ebrí, Greulich and Pyle and Tanner Whitehouse2

We have carried out a review study in order to remind the pediatrician of the differences in bone age (EO) between the existing Greulich-Pyle (GP) or Tanner-Whitehouse 2 (TW2) methods compared to Ebrí ages: EO Ebrí-carpal (EOIC) metacarpophalangic (EOIMF) and Carpometacarpophalangic (EOICMF). The study was carried out in Spanish longitudinal casuistry “Andrea Prader”. It comprises 160 healthy children: 73 males and 87 females, distributed by sex and age from 0.5 to 20 years. By obtaining the EO for each method, a comprehensive study can be carried out between them, and thus, observing if there are differences, being able to offer a quantification to the pediatrician for him to take them into account. In previous studies, the equations for obtaining the EO were expressed by the Ebrí methods. These quantifications are presented throughout this review.
Juvenile trabecular ossifying fibroma: Immunohistochemical expression of MDM2, CDK4 and p53 compared to conventional ossifying fibroma

Background Juvenile ossifying fibroma (JOF) is an uncommon benign fibro-osseous lesion of the craniofacial skeleton; compared to conventional ossifying fibroma (OF), JOF is characterized by local aggressiveness and propensity for recurrence. The biologic basis for this different biologic behavior between JOF and OF remains elusive. The aim of this study was to evaluate the immunohistochemical expression of MDM2, CDK4 and p53, molecules associated with bone oncogenesis, in the trabecular variant of JOF. Material and Methods The study material consisted of five cases of trabecular JOF, affecting three male and two female patients with a mean age of 11.8 years. Three cases arose in the maxilla and two in the mandible. All cases were initially treated by enucleation; two cases recurred necessitating more aggressive treatment. Immunohistochemical study of MDM2, CDK4 and p53 was performed in all cases, as well as in five control cases of conventional OF. Results CDK4 positivity was noted in all JOF cases; the staining pattern was diffuse and strong in 4 cases and focal and weak in one case. In contrast, 4 out of 5 cases of OF were weakly and focally CDK4 positive, the remaining one being negative. Immunostaining for MDM2 was observed in 3 JOF cases; all OF were MDM2 negative. All cases of OF and JOF were negative for p53, except for one focally positive JOF case. Conclusions CDK4 and MDM2 expression in the trabecular variant of JOF is higher compared to conventional OF. In contrast, p53 expression is almost universally negative in JOF and OF. Despite some overlapping features, differential expression patterns of proteins involved in bone oncogenesis can elucidate the pathogenesis and may facilitate accurate diagnosis and prediction of behavior of bone tumors in the craniofacial region. Key words:Juvenile ossifying fibroma, trabecular variant, conventional ossifying fibroma, MDM2, CDK4, p53.
Design of the Three-Dimension Motion Platform Control System Based on EtherCAT

This design contains the EtherCAT fieldbus system and the PLCopen technology. The control system can not only achieve the motion target but also simulate the Computer Numerial System effectively. Hardware is constituted by embedded IPC, SanyoDenki servo drive and motor system, EtherCAT communication module and I/O module. The PLC program run under the Windows XP system, which install Codesys RTE, so that the whole control system improve the real-time character. Paper focuses on the structure of the control system and the design of the PLC program. The experiments and program results have proved that the control system working well，reaching the pre-set target．
Experimental Characterization of WSN propagation in Outdoor Environment (using TelosB Sensor Nodes)

2 Abstract: In this paper channel prediction model of an outdoor environment using TelosB sensor nodes is develop. A Wireless Sensor Network (WSN) testbed comprising of four sensor nodes was built at the library field of Nnamdi Azikiwe University Awka. One of the sensor nodes is attached to the laptop which becomes the sink while the other 3 were placed at 0 0 , 90 0 and 180 0 . RSSI measurement was taken at various distances up to 60m at the interval of 5m. The measured RSSI was used to develop the pathloss model of the environment using least mean square error method of linear regression analysis. The model developed was tested and the goodness of fit (R 2 ) of the model was found to be 0.83. This shows that the pathloss model developed could be applied to an environment with similar radio
Evaluation of Color Properties of Wool Fabrics Dyed with Calligonum comosum at Different Dye Conditions

In this search, the wool fabric was dyed with a natural dye Calligonum comosum (Callig. Co. dye); the dyeing process was applied under different conditions by changing dye bath temperature, time of dyeing, and pH of dye bath also using different mordants. Ultraviolet protection factor (UPF) was determined for each dyed wool sample. The role of these dying conditions on the via color strength analysis their effects on the reflectance spectra were investigated using the spectro-photometer tool, CIE tristimulus values, and the color parameters. The dye-ability strength and fastness to washing and perspiration properties of these wool samples dyed with (Callig. Co. dye) were carried out spectrophotometrically and evaluated the antimicrobial activity for blank and dyed wool fabrics via gram-positive and gram-negative was followed. The results showed that dyeing wool fabrics with (Callig. Co. dye) increased their protective abilities markedly, and they have effective protection against UV rays, also improving their antimicrobial activity. Moreover, Different conditions of the dye bath changed the optical properties noticeably. The present study will be useful for dermatologists advising patients regarding the UPF properties of clothes made from natural fabrics (wool) and dyed with natural colorants (Callig. Co. dye).
Continuous Renal Replacement Therapy in the Critically Ill Patient: From Garage Technology to Artificial Intelligence

The history of continuous renal replacement therapy (CRRT) is marked by technological advances linked to improvements in the knowledge of the mechanisms and kinetics of extracorporeal removal of solutes, and the pathophysiology of acute kidney injury (AKI) and other critical illnesses. In the present article, we review the main steps in the history of CRRT, from the discovery of continuous arteriovenous hemofiltration to its evolution into the current treatments and its early use in the treatment of AKI, to the novel sequential extracorporeal therapy. Beyond the technological advances, we describe the development of new medical specialties and a shared nomenclature to support clinicians and researchers in the broad and still evolving field of CRRT.
Curative treatment of pancreatic functioning insulinoma with stereotactic ablative radiation therapy: case report

Insulinoma is the most common pancreatic neuroendocrine tumor (NET). It is a rare disease account for 1-2% of pancreatic tumors and affect approximately up to 3 patients per million per year. complete surgical resection or debulking are standard of care option. However, surgery is associated with short and long-term post-operative morbidity and may not be appropriate for all patients. In This case we present management and cure of a case of functioning insulinoma with stereotactic ablative radiosurgery in an unfit patient for surgery.