Miracle-dz/UniFAR-FTUs huggingface dataset:
Design of Reconfigurable Multiple-Beam Array Feed Network Based on Millimeter-Wave Photonics Beamformers

In this chapter, elaborating the direction of designing photonics-based beamforming networks (BFN) for millimeter-wave (mmWave) antenna arrays, we review the worldwide progress referred to designing multiple-beam photonics BFN and highlight our last simulation results on design and optimization of millimeterphotonics-based matrix beamformers. In particular, we review the specialties of mmWave photonics technique in 5G mobile networks of Radio-over-Fiber (RoF) technology based on fiber-wireless architecture. In addition, the theoretical background of array antenna multiple-beam steering using ideal models of matrix-based phase shifters and time delay lines is presented including a general analysis of radiation pattern sensitivity to compare updated photonics beamforming networks produced on phase shifter or true-time delay approach. The principles and ways to optimized photonics BFN design are discussed based on the study of photonics BFN scheme including integrated 8 8 optical Butler matrix (OBM). All schemes are modeled using VPIphotonics Design Suite and MATLAB software tools. In the result of simulation experiments, the outcome is obtained that both the integrated optical Butler matrix itself and the BFN based on it possess an acceptable quality of beams formation in a particular 5G pico-cell.
Title Application of hybrid system theory to power system stabilityanalysis

This paper shows a basic framework for applying hybrid system theory to power system stability analysis. Hybrid dynamical systems and control are nowadays developed in the intersection of computer science and control engineering. In this paper we discuss an application of hybrid system theory to stability analysis of power systems, and propose a novel approach to the stability estimation based on the revolution of reachable sets. This paper applies the proposed approach to transient stability analysis of a simple electric power system, thereby showing the effecitiveness of the approach.
Energy and tannin extract supplementation for dairy cows on annual winter pastures

Energy supplementation can increase the consumption of metabolizable energy and substrate for microbial growth, while condensed tannins aid in increasing the duodenal flow of foodborne metabolizable proteins. The objective of this study was to evaluate the effects of energy supplementation and the inclusion of tannin extract (TE) from Acacia mearnsii (Weibull Black, Tanac S. A., Montenegro, Brazil) on the production performance of dairy cows grazing on winter pastures. Nine multiparous Holstein cows in mid lactation were distributed in a 3 × 3 Latin square experimental design over three periods of 28 days (21 adaptation and 7 sampling). The treatments were: without supplementation (WS), supplementation with 4 kg of corn grain (CG), and corn grain + 80 g of tannin extract (TE). The dry matter (DM) intake from pastures was similar among treatments, but the consumption of DM of the supplement was higher in the CG treatment than that in the TE treatment. The total DM intake was higher for the supplemented animals (17.3 kg? day-1) than that for the unsupplemented animals (14.9 kg? day-1) and in the TE treatment (17.7 kg? day-1) than in the CG treatment (16.7 kg day-1). Milk production increased from the unsupplemented to the supplemented animals (20.9 to 23.5 kg, respectively), while the content of urea N in the milk decreased (12.6 to 10.5 mg? 100 mL-1, respectively). There were no differences in milk production or content of milk urea N between the CG and TE treatments. Energy supplementation is a tool for improving the nutritional profile and the performance of dairy cows in mid lactation grazing on annual winter pastures, while tannin extract aids in improving the energy balance.
THE IMPORTANCE OF BRAND IN CONSUMER BUYING BEHAVIOR AND PRODUCT QUALITY ASSESMENT

In order to maintain or increase market share, every company tries to use the most optimal combination of marketing communication tools or marketing mix tools. There are a large number of products placed on the market from a large number of companies that need to distinguish one another from competing companies. The most important tool to differentiate from competitors is the brand of products. The aim of each company is to ensure that their product brand is brought to the attention of customers and that customers associate especially positive associations with its brand(s). We are of the opinion that if the first and then repeated purchase of customers of the same product of a given brand confirms that the product meets the required characteristics and quality they expect from the product, customers will not doubt the quality of the products sold under the brand and will regard it as quality. For this reason, the aim of the paper was to confirm the importance of the brand in consumer buying decisions and to find out whether consumers really perceive the brand as a guarantee of product quality. To meet the aim of the paper, we conducted a questionnaire survey, which confirmed the importance of the brand in consumer purchasing decisions and the perception of the brand as a guarantee of product quality. We also confirmed a statistically significant dependence between brand perception as a guarantee of product quality and the age of respondents, confirming the importance of demographic characteristics in the implementation of company marketing activities.
Dynamite in Small Packages : the Engaged Elite as an Emerging Facebook Niche Market

Social networking sites, such as Facebook, have gained immense popularity as communication platforms and as advertising tools. Generation Yers have a strong need to engage with others and make connections-digitally and in person. This paper examines the Facebook behavior of Generation Y by means of a self-administered survey of 383 university students. The purpose of this research was to determine whether clusters of Generation Y Facebook users could be identified on the basis of their Facebook behavior and usage. All multi-item constructs were subjected to an exploratory factor analysis and a two-step cluster analysis. Three clusters emerged: “Engaged Elite,” “Neutral Masses,” and ‘Facebook Floaters. ” The results indicate that Facebook remains a feasible channel to initiate and engage in a number of marketing activities. However, the focus should not be on ‘pushing’ content and information, but rather on engaging the users__and to facilitate sharing between users across their networks.
MIMO interaction measure and controller structure selection

In this paper, a MIMO interaction measure is described and its use in structure selection of multivariable controllers is discussed. The proposal is built upon a gramian-based measure of interaction in multivariable plants and the results in this paper apply to stable processes. This measure provides support for decentralized input–output pairing as well as for a richer controller architecture selection in continuous and discrete-time time frameworks, including triangular, block diagonal and sparse structures.
COMPARATIVE ANALYSIS OF THE VECTOR CONTROL AND THE DIRECT TORQUE CONTROL PMSM DRIVES

Permanent Magnet Synchronous Motors (PMSM) encompass escalating awareness in topical years for industrial drive applications. The elevated efficiency, high steady state torque density and simple controller of the Permanent Magnet (PM) motor drives compared to the induction motor drives make them a good substitute in scores of application. The paper presents the two imperative control strategies for 3-phase AC motors i.e. Vector Control and Direct Torque Control (DTC) applied to PMSM with their respective comparative study. The recital of the developed model of PMSM drive is found to operate adequately with the controllers in fleeting as well as steady state. The response of vector control for PMSM drive is observed to be good load perturbation and transient condition, whereas DTC is better in terms of power converter utilization at higher speeds and rated loads.
A sociocultural analysis of personal practical theorizing as an awareness raising technique in novice and expert teachers’ professional development

As a part of a larger-scale research, the present study aimed to use the main tenets of sociocultural perspective; namely, mediation, internalization, zone of proximal development, and the activity theory, to analyze the novice and expert teachers’ professional development through personal practical theorizing as an awareness raising technique. Furthermore, the study attempted to identify the contextual factors hindering teachers’ pedagogical beliefs enactment. The areas of mismatches between the teachers’ beliefs and practices were identified in the previous phases of the study and personal practical theorizing procedure was implemented in the program to help teachers converge their beliefs and practices. Within the domain of the qualitative research, a multi-case study design was utilized, employing eight novice and experienced teachers who were selected through purposive sampling. The teachers’ professional development in the proposed program was analyzed through the lens of sociocultural perspectives and the contextual factors hindering teachers’ beliefs enactment were enumerated based on the results gleaned through interview sessions
the extent to which firm size affects stock return in the egyptian stock market

This study aims to document how stock return is affected by firm size. This study uses mainly panel analysis technique of firms listed in EGX30 in the time period from 2010 to 2015. The findings showed that firm size is a significant factor in predicting average stock return in the Egyptian stock market. Unexpectedly, it was found that the return of the previous year (lag return) plays a major role in predicting stock return in the Egyptian stock market.
SEED CHEMICAL COMPOSITION OF ENDEMIC PLANT

The present study was conducted to determine the biochemical characteristics of Fraxinus ornus subsp. cilicica, seeds, an endemic tree species of Turkey. Seeds were collected from three provenances (Düziçi-Osmaniye, Andırın-Kahramanmaraş, Pozantı-Adana). Seed reserve composition (total soluble sugars, reducing sugars, carotenoids, xanthophylls, total soluble proteins, total tocopherol, total soluble phenolics, flavanoids and oil content) and seed fatty acids contents were examined. Total soluble sugars content and total tocopherol contents of seed among provenances did not differ significantly but other seed constituents were different among provenances. The highest amount of fatty acids present in F. ornus subsp. cilicica seeds were linoleic and oleic acids. The present study is the first report dealing with various aspects of seed composition and should provide valuable information for this
EXAMINING ASSOCIATIONS OF THE SOCIOECONOMIC CHARACTERISTICS WITH THE NUMBER OF GEO-TAGGED TWEETS IN CENSUS BLOCK LEVEL (CASE STUDY: BOSTON)

Abstract. In this study, the aim is to help uncover some facts about who the Twitter users really are. To this purpose, geotagged twitter data from the city of Boston together with socio-economic data were used. In the first step, tweets in each census block were counted and using the Getis-Ord Gi* index the hotspots and coldspots of tweet locations were extracted. Then, a multiple linear regression was employed, having the number of tweets as the response variable and the population data, age, education, occupation and income as the explanatory variables. Hence, more insight into the relationship between the number of tweets and some socio-economic factors is obtained. Results show that the central parts of Boston are the hotspot and the southern areas are the coldspot locations with regard to tweet numbers. The regression results imply that the number of tweets shared by users in an area is related to the income, the number of people having a university degree and the number of people having each type of job in that spatial unit. The results achieved in this paper could lead to a better vision and understanding in analyzing the tweeter users’ behavior in any area of research and application.
Nonlinear Resonances in 3D Printed Structures

Nonlinear resonators can have advantages over linear designs including increased sensitivity towards changes in their physical properties and environment, and high quality factors which make them attractive in applications such as mass/ chemical sensors or signal filters. Designing nonlinear structures, however, requires much understanding of nonlinear behavior characteristics of structures. Similarly, the proliferation of 3D or additive manufacturing/printing capabilities has opened the doors to deploying nonlinear resonators on scales not possible earlier. However, to obtain consistent nonlinear dynamic performance the designer must perform a careful analysis to explore the existence and repeatability of desired nonlinear behavior. Also, the use of 3D printing with the associated substrate material properties poses its own challenges in regards to device simulation in view of the fact that most of the traditional literature on nonlinear resonators assumes linear material stiffness. In this chapter, the authors discuss computational design methods for structural design, and specifically study the case of 1:2 internal resonances in resonators made of nonlinear (hyperelastic) materials. The design methods allow for development of large number of candidate resonator designs without a required significant nonlinear structural design experience, and the study of the dynamic response of the resonators provides a glimpse in to the 1:2 nonlinear internal resonance exhibited by the candidate resonators.
“I Feel a Deep Sense of Responsibility for the People we have Hurt…” – Explicit Stance Attribution in Crisis Communication Contested

Abstract The theme of crisis, and consequently of crisis response, has been extensively studied within the disciplines of crisis communication (see Rachfał (2013a) for an overview of crisis communication as an independent academic discipline and its place among other allied sub-disciplines of public relations) and public relations with the aim of protecting organisations or reducing the damage caused by a crisis episode (Fediuk, Pace and Botero, 2010). Nowadays, with the growing recognition of crisis response as persuasive communication there is a need for an interdisciplinary approach which would help researchers understand the effects that crisis messages have on the perceptions and behaviours of stakeholders. Therefore, this paper seeks to bridge the aforementioned disciplines and examines crisis from the perspective of linguistics. Thus, it analyses grammatical stance-marking devices (Biber, et al., 1999), which might provide insights into how speakers manipulate linguistic resources for persuasive purposes. The paper focuses on explicit stance attribution and explores how the first-person plural pronoun we is used in crisis response to alter the stakeholders’ perceptions concerning people and events. The analysis draws on statements issued in 2011 by people in top public positions in the wake of the phone-hacking scandal at the News of the World.
College Students' Perceptions of Inappropriate and Appropriate Facebook Disclosures

COPYRIGHT 2015 BY PSI CHI, THE INTERNATIONAL HONOR SOCIETY IN PSYCHOLOGY (VOL. 20, NO. 2/ISSN 2164-8204) *Faculty mentors ABSTRACT. The current study aimed to understand college-age Facebook® users’ perceptions of others’ self-disclosure, and additionally sought to determine what actions participants were likely to take when they perceived that a post was inappropriate. Participants (N = 150) were asked to read mock Facebook newsfeeds and to respond to items that assessed their perception of the appropriateness or inappropriateness of each user’s posts (romantic relationship drama, negative emotion, passive aggression, and frequent status updates), as well as how they would respond to such posts. Results indicated that posts related to romantic relationship drama were rated by most as inappropriate or very inappropriate (74.0%; p < .001). Passive aggressive posts were also rated as inappropriate or very inappropriate more often than the other types of posts. In addition, for participants who perceived that romantic relationship drama posts were inappropriate, they reported that they would be most likely to ignore (63%), block (19%), or defriend (10%) someone who made similar types of posts, p < . 001. Further, results revealed some sex and racial/ethnic group differences in regard to perceptions and actions. The current research added to the knowledge base about the types of Facebook self-disclosure that college-age users find to be inappropriate and identified actions that users are likely to take when they have such perceptions. College Students’ Perceptions of Inappropriate and Appropriate Facebook Disclosures
Crossing the Rubicon: Exploring the Factors that Shape Academics Perceptions of the Barriers to Working with Industry

Although academics are under increasing pressure to engage industry in their research, they often find it difficult to do so. Conflicts with industry over the timing of disclosure and the choice of topics are common. Moreover, collaborations with industry may require academics to negotiate formal contracts about the ownership of intellectual property. To help understand the factors that might mitigate these conflicts, this paper examines how the professional and collaborative experiences of academics shape their perceptions of the barriers to industry collaboration. Using a rich dataset of UK academics, we find that perceived barriers to collaboration are lower for academics with industrial and collaborative experience and for those who trust their industry partners. However, for the transactional costs of industry engagement, we find entrepreneurial experience and the diversity of methods used to collaborate with industry increases the perceived barriers to collaboration.
A Comparison of Sensitivity and Specificity of AST to Platelet Index (APRI) and FIB-4 with Transient Elastography i.e. Fibro Scan in Chronic HCV Infected Patients

Background: Hepatitis C is a leading cause of liver fibrosis, cirrhosis, and cirrhosis associated complications. In this study, we compared readily available non-invasive fibrosis indexes with fibro scans for fibrosis staging and predicting its progression in Pakistani population. Methods: The retro prospective cross-sectional study was conducted in medicine unit 1 and 2 and hepatitis clinic of Lahore General Hospital, Lahore starting from February 12, 2018 to January 8, 2019. We studied 1464 HCV infected patients which were got CBC, LFTs, ELISA, PCR and fibro scan was done to perfectly diagnose ongoing hepatitis C infection. In order to differentiate HCV fibrosis progression, we compared the effectiveness of readily available AST to Platelet Index (APRI), and FIB-4 with fibro scan. Results: Readily available serum indexes AST to Platelet Index (APRI) and FIB-4 were able to stage liver fibrosis in advanced stages of fibrosis (F4 especially) with correlation coefficient indexes 0.462, and 0.131 with considerable specificities and sensitivities. For APRI >1.5, it did predict F4 stage with sensitivity of 87.6% and specificity of 74.8%. For Fib-4> 3.25, it did predict F4 stage with sensitivity of 72.3% and specificity of 53.2%. Conclusion: Readily available and cheap serum indexes, AST to Platelet Index (APRI) and FIB-4 accurately predicted distinguished between cirrhotic and non- cirrhotic stages in HCV infected patients in comparison to the costly and rarely available Fibro scan score.
The Role of the Medial Prefrontal Cortex in the Formation and Retrieval of Memories for Complex Events

The medial prefrontal cortex (mPFC) has recently been speculated to support the function of schemas. To test this idea, we had patients with mPFC lesions and healthy controls view film clips which were rated as congruent (typical), incongruent (atypical), or neutral with respect to schemas. We then tested their memories to determine if schema-congruency (typicality) would influence the recall of the film clips and recognition of elements in them. Our prediction was that effects of schema congruency on recall and recognition would be diminished in patients with mPFC lesions. We found that, unlike healthy controls in previous studies, mPFC patients tended to recall schema-congruent and schema-incongruent narratives with similar error rates, over time. These results provide partial support for the view that the mPFC is crucial for the schematization of memories over time.
Long-term success of immediately restored single implant-supported prosthesis in reconstructed cleft maxilla

The purposes of this study were to evaluate the rate of success of immediate or early loaded implants placed in congenital cleft alveolus in a reference Brazilian Public Service, and to investigate the probable causes of failures. All the immediately restored osseointegrated implants installed from 1991 to 2010 at the Hospital for Rehabilitation of Craniofacial Anomalies (Bauru, SP, Brazil) were investigated. This search resulted in 281 patients, in whom 573 implants were installed. Only 10 fulfilled the following criteria: 1) single implants installed at the cleft alveolus (grafted or not) at least two years before the beginning of the study; 2) implants that had undergone to immediate or early load. Data about the patients and implants were collected from records of the patients and presented as percentage of well succeeded and failed implants. None of the implants failed. The implants have been in function for at least 58 months. Nine implants are in function for at least 5 years and one, for at least 10 years. It was concluded that rough surfaced titanium implants with proper dimensions installed in low density bone at the cleft region can receive immediate non functional provisional restoration with satisfactory prognosis at medium and long-term as long as strict criteria is followed for case selection.